Circular connector and PWE network cable

Abstract

The utility model provides a circular connector and a PWE network cable. The circular connector comprises a plug housing used for forming a first hollow chamber with openings at the front end and the rear end; the shielding copper pipe comprises a front-section copper pipe and a rear-section copper pipe, the front-section copper pipe and the rear-section copper pipe are used for forming a second hollow cavity communicated with the first hollow cavity, the front-section copper pipe is embedded into the rear-end opening of the plug shell, and the rear-section copper pipe is exposed and is used for being fixedly connected with the outer sheath of the cable in a pressing manner; the insulator is arranged in the first hollow cavity and the second hollow cavity; a plurality of pins, wherein the middle section of each pin is arranged in the insulator; the rear-section copper pipe is also provided with a dispensing hole, and the dispensing hole is used for filling the second hollow cavity with glue after the rear section of each pin is connected with the wire of the cable. The shielding copper pipe is embedded in the plug shell and is combined with the plug shell, so that the influence of an external environment on internal connection is effectively isolated.

Description

Technical Field

[0001] The present application relates to the field of connector technology, and in particular to a circular connector and a PWE network cable. Background Art

[0002] Common connectors on the market typically consist of a housing, plug, and sealing ring. Once all components are assembled, the plastic housing is exposed to the air and susceptible to environmental influences. High temperatures can cause metal components of the connector, such as the pins, to expand. When cables and these connectors are assembled into a PWE cable, this can affect data transmission or charging efficiency.

[0003] Based on this, the market urgently needs to provide a circular connector and PWE network cable to solve the above problems. Utility Model Content

[0004] The purpose of this application is to solve the problem in the prior art that the data transmission or charging efficiency of the network cable assembled with connectors is easily affected by the external environment.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions:

[0006] In a first aspect, the present application provides a circular connector, comprising:

[0007] A plug housing, the plug housing being configured to form a first hollow chamber with front and rear end openings;

[0008] a shielded copper tube, the shielded copper tube comprising a front copper tube and a rear copper tube, the front copper tube and the rear copper tube being used to form a second hollow chamber that is conductive with the first hollow chamber, and the front copper tube being embedded in the rear end opening of the plug housing, while the rear copper tube being exposed and being used to be crimped and fixed to the outer jacket of the cable;

[0009] an insulator, disposed in the first hollow chamber and the second hollow chamber;

[0010] Multiple pins, the middle section of each pin is respectively arranged in the insulator, the front section of each pin is used to mate with the corresponding socket in the first hollow cavity, and the rear section of each pin is used to connect to the wire of the cable in the second hollow cavity; the rear section copper tube is also provided with a glue dispensing hole, which is used to fill the second hollow cavity with glue after the rear section of each pin is connected to the wire of the cable.

[0011] In some possible implementations, an external thread is provided on the front outer side of the plug housing, and a step is formed on the rear outer side of the plug housing with a circumferential diameter larger than the front outer side of the plug housing.

[0012] In some possible implementations, the external thread is an M12×1 external thread, the step on the outer side of the front end of the plug housing is a cylindrical structure, and the outer diameter of the cylindrical structure is 14.5 mm.

[0013] In some possible implementations, an insulating extension portion is provided in a portion of the insulator away from the second hollow chamber, and the insulating extension portion extends to a front end of the plug housing and forms a step surface.

[0014] In some possible implementations, the number of the dispensing holes is 2, and they are symmetrically arranged on the side wall of the rear copper tube.

[0015] In some possible implementations, the outer diameter of the shielding copper tube is 9 mm to 10 mm, and the diameter of the glue dispensing hole on the shielding copper tube is 3 mm to 4 mm.

[0016] In the second aspect, the present application also provides a PWE network cable, including a cable, at least one end of which is provided with a circular connector as described above, the circular connector including a plug housing, a shielded copper tube, an insulator and a plurality of pins, the rear section of the pins being connected to the wires of the cable, the rear end of the shielded copper tube being further provided with a glue hole, the rear end of the shielded copper tube being crimped and injection-molded onto the outer sheath of the cable.

[0017] In some possible implementations, an outer sleeve is further included, which includes a front outer sleeve and a rear outer sleeve. The front outer sleeve is sleeved on the exposed part of the shielding copper tube, and the rear outer sleeve is arranged on the cable.

[0018] The embodiments of the present application provide a circular connector and a PWE network cable. The technical solution provided has the following beneficial effects:

[0019] The use of shielded copper tubing effectively shields against external electromagnetic interference, ensuring stable and reliable signal transmission along the network cable where the connector resides. The rear copper tubing is crimped to the cable's outer jacket, providing excellent mechanical support and further strengthening the connector. Glue holes allow the second hollow chamber to be filled with glue, providing additional waterproof and dustproof protection and improving the connector's environmental adaptability.

[0020] In summary, the design of the circular connector not only provides a stable electrical connection, but also effectively isolates the external environment from the internal connection by embedding a shielded copper tube in the plug shell. At the same time, the shielded copper tube can reduce electromagnetic interference (EMI), thereby improving the stability and reliability of data transmission. It solves the problem that the network cable assembled by the connector and the shell (especially the rear section of the insulator and pins) are exposed to the air, affecting data transmission or charging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present application is further described below with reference to the accompanying drawings and examples.

[0022] Figure 1 This is a schematic structural diagram of a circular connector proposed in this application;

[0023] Figure 2 This is a structural schematic diagram of a circular connector proposed in this application from another angle;

[0024] Figure 3 A cross-sectional view of a circular connector proposed in this application;

[0025] Figure 4 This is a schematic diagram of the structure of a PWE network cable proposed in this application.

[0026] Illustration: 100, circular connector; 110, plug housing; 111, first hollow chamber; 120, shielding copper tube; 121, front copper tube; 122, rear copper tube; 123, second hollow chamber; 124, dispensing hole; 130, insulator; 131, insulation extension; 140, pin; 200, PWE network cable; 210, wire; 220, outer sleeve. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0028] The following is a brief description of the technical field of the embodiments of the present application.

[0029] The M12 network cable interface, also known as the Lands interface, is a small, circular connector standard. Its housing has a diameter of 12 mm and is typically made of metal. In an M12 interface, the male end is the plug, and the female end is the socket. The interface offers two fastening methods: screw-lock and push-pull. Due to its compact size and strong interference resistance, the M12 interface can be used to transmit a variety of signals, including power, data, video, and pneumatics. It is widely used in industrial automation control, communications equipment, instrumentation, and medical devices. The M12 interface is a particularly popular connection solution for connecting sensors and communications equipment. Its advantages include a compact size, making it easy to install and use in limited spaces; strong interference resistance, making it suitable for use in industrial environments and reducing the impact of electromagnetic interference; and a wide range of applications, suitable for transmitting a variety of signals to meet the needs of diverse applications.

[0030] Meanwhile, the circular M12 connector is a Gigabit Ethernet plug connector that complies with IEC 61076-2-109 and can achieve a transmission rate of 10GB / s.

[0031] In the case of connectors in related technologies, such as circular M12 connectors, the insulator and the rear end of the pins are exposed to the air, affecting data transmission or charging efficiency. This application provides a circular connector and PWE network cable. Taking into account the impact of the external environment on data transmission or charging efficiency, a shielded copper tube is embedded in the plug housing. Combined with the plug housing, it effectively isolates the internal connection from the external environment. The following will first describe the circular connector, followed by the PWE network cable.

[0032] Example 1

[0033] Reference Figures 1 to 3 , an embodiment of the present application provides a circular connector 100, comprising:

[0034] A plug housing 110 , wherein the plug housing 110 is used to form a first hollow chamber 111 with front and rear openings;

[0035] A shielded copper tube 120, comprising a front copper tube 121 and a rear copper tube 122, wherein the front copper tube 121 and the rear copper tube 122 are used to form a second hollow chamber 123 that is in communication with the first hollow chamber 111. The front copper tube 121 is embedded in the rear end opening of the plug housing 110, while the rear copper tube 122 is exposed and is used to be crimped and fixed to the outer jacket of the cable.

[0036] an insulator 130 , disposed in the first hollow chamber 111 and the second hollow chamber 123 ;

[0037] Multiple pins 140, the middle section of each pin 140 is respectively arranged in the insulator 130, the front section of each pin 140 is used to mate with the corresponding socket in the first hollow chamber 111, and the rear section of each pin 140 is used to connect to the wire of the cable in the second hollow chamber 123; the rear section copper tube 122 is also provided with a glue hole 124, and the glue hole 124 is used to fill the second hollow chamber 123 with glue after the rear section of each pin 140 is connected to the wire of the cable.

[0038] The plug housing 110 serves as the connector's foundational structure, forming a first hollow chamber 111. Both the front and rear ends of the first hollow chamber 111 are open, housing and protecting the internal components. The shielding copper tube 120 consists of a front section and a rear section, which together form a second hollow chamber 123. The second hollow chamber 123 is electrically connected to the first hollow chamber 111 of the plug housing 110. The front section of the copper tube 121 is embedded in the rear opening of the plug housing 110, while the rear section of the copper tube 122 is exposed and is crimped to the cable's outer jacket, providing mechanical support and electrical shielding. An insulator 130 is positioned within the first and second hollow chambers 123, isolating the individual pins 140 to ensure electrical safety and prevent short circuits. The middle section of the pin 140 is positioned within the insulator 130, with the front section within the first hollow chamber 111, mating with the corresponding receptacle for electrical connection. The rear section, within the second hollow chamber 123, connects to the cable's conductors. Glue holes 124 are located on the rear copper tube 122 to fill the second hollow chamber 123 with glue after the rear end of the pin 140 is connected to the cable conductor. Once the glue cures, it secures the pin 140 and the conductor, while also providing an additional waterproof and dustproof seal. In the technical solution, the term "front" refers to the direction in which the plug housing 110 opening faces the exterior of the connector (e.g., the corresponding receptacle), while the term "rear" refers to the direction in which the connector faces the cable connection. The outer sheath of a cable can be understood as including the cable's sheath, the material surrounding the outermost layer of the cable.

[0039] Thus, by using shielded copper tube 120, external electromagnetic interference can be effectively shielded, ensuring the stability and reliability of signal transmission in the network cable where the connector is located. The rear copper tube 122 is crimped and fixed to the outer jacket of the cable, providing good mechanical support and making the connector more stable. The provision of glue holes 124 allows the second hollow chamber 123 to be filled with glue to provide additional waterproof and dustproof functions, improving the environmental adaptability of the connector.

[0040] In summary, the design of the circular connector 100 not only provides a stable electrical connection, but also effectively isolates the internal connection from the external environment by embedding the shielded copper tube 120 in the plug housing 110. In combination with the plug housing 110, the shielded copper tube 120 can reduce electromagnetic interference (EMI), thereby improving the stability and reliability of data transmission, and solving the problem of the network cable assembled by the connector and the shell (especially the rear section of the insulator 130 and the pin 140) being exposed to the air, affecting the data transmission or charging efficiency.

[0041] In one embodiment, the front end of the plug housing 110 is provided with an external thread, and the rear end of the plug housing 110 forms a step having a circumferential diameter greater than the front end of the plug housing 110. In a specific application, the external thread is an M12×1 external thread, and the step on the front end of the plug housing 110 is a cylindrical structure with an outer diameter of 14.5 mm.

[0042] The front outer side of the plug housing 110 is provided with external threads, allowing the circular connector 100 to be screwed directly into the socket as a plug, achieving a mechanical connection through the mating of the threads. This connection method is not only firm but also provides good sealing performance. The rear outer side of the plug housing 110 forms a step with a circumferential diameter larger than the front outer side to provide a larger contact surface, which helps to disperse stress during connection and reduce damage to the plug housing 110. In specific applications, the step can be used to locate the cable connection point, ensuring that the connection between the cable and the plug housing 110 is fixed in a pre-set position.

[0043] The external thread design allows the plug to be securely connected to the socket, providing a reliable mechanical connection. The threaded connection can also be used with a sealing ring to enhance the connector's waterproof and dustproof capabilities, thereby improving the connector's environmental adaptability. The rear-end step design helps distribute stress during connection, reducing damage to the plug housing 110 and improving the connector's durability.

[0044] In one embodiment, an insulating extension portion 131 is provided on a portion of the insulator 130 away from the second hollow chamber 123 . The insulating extension portion 131 extends to the front end of the plug housing 110 and forms a step surface.

[0045] In the connector, the insulator 130 isolates the various conductive components to prevent electrical short circuits and ensure clear signal transmission. Furthermore, an insulating extension 131 is provided on the portion of the insulator 130 away from the second hollow chamber 123. This insulating extension 131 extends to the front end of the plug housing 110 and forms a stepped surface.

[0046] Thus, the presence of insulating extension 131 provides additional insulation protection, ensuring more comprehensive electrical isolation between the conductive components inside plug housing 110 and the exterior of plug housing 110. Furthermore, the stepped surface provides additional structural support for the front end of plug housing 110, helping to distribute mechanical stress and reduce damage caused by external impact or pressure. The stepped surface also serves as a positioning feature during assembly, helping to ensure that the various components within plug housing 110 are assembled in the correct position and orientation.

[0047] In one embodiment, the number of the dispensing holes 124 is two and they are symmetrically arranged on the side wall of the rear copper tube 122. In a specific application, the outer diameter of the shielding copper tube 120 is 9mm to 10mm, and the diameter of the dispensing holes 124 on the shielding copper tube 120 is 3mm to 4mm.

[0048] The shielding copper tube 120 provides electromagnetic shielding within the connector, helping to prevent external electromagnetic interference from affecting signal transmission quality and stability. Glue dispensing holes 124, designated holes in the sidewall of the rear copper tube 122, are used to inject sealant or filler material. Two symmetrical dispensing holes 124 (opposite each other on either side of the shielding copper tube 120) ensure uniform distribution of the filler material within the shielding copper tube 120 during glue filling. The symmetrical placement of the dispensing holes 124 ensures even distribution of the glue or filler material within the shielding copper tube 120, providing a consistent seal. Injecting glue through both dispensing holes 124 effectively fills the space within the shielding copper tube 120, reducing air bubbles and gaps and improving sealing performance. Because glue can be dispensed simultaneously or sequentially through the symmetrical dispensing holes 124, the design simplifies the dispensing process during production. The evenly distributed glue creates a better barrier against water and dust, enhancing the connector's waterproof rating. The uniform filling inside the shielding copper tube 120 helps provide a more continuous shielding effect, reducing the impact of external interference on signal transmission and charging. The cured glue can fix the connection between the shielding copper tube 120 and the cable, improving the mechanical stability of the connector.

[0049] Example 2

[0050] Reference Figure 4 An embodiment of the present application provides a PWE network cable 200, including a cable 210, at least one end of which is provided with a circular connector 100 as described in any one of Example 1, the circular connector 100 including a plug housing 110, a shielded copper tube 120, an insulator 130 and a plurality of pins 140, the rear end of the pins 140 being connected to the wires of the cable, the rear end of the shielded copper tube 120 being further provided with a glue hole 124, the rear end of the shielded copper tube 120 (i.e., the rear end of the copper tube) being crimped and injection-molded onto the outer sheath of the cable.

[0051] The cable 210 is used to transmit data or power. A circular connector 100 is installed at at least one end of the cable 210. The plug housing 110 of the circular connector 100 forms the main structure of the connector, providing physical protection and electrical isolation. The shielded copper tube 120 of the circular connector 100 provides electromagnetic shielding, preventing external interference from affecting signal transmission. The insulator 130 of the circular connector 100 isolates the individual pins 140, preventing short circuits and ensuring clear signal transmission. The multiple pins 140 of the circular connector 100 are used to mate with the receptacle to transmit data and power. The rear end of the pins 140 connects to the cable conductors, ensuring signal and power transmission to the cable. The rear end of the shielded copper tube 120 is provided with a glue hole 124 for injecting glue or filler material to enhance the seal and fixation between the shielded copper tube 120 and the cable. The rear end of the shielded copper tube 120 is fixed to the cable jacket through crimping and injection molding, providing mechanical support and further sealing.

[0052] The use of shielded copper tube 120 effectively reduces external electromagnetic interference and ensures stable data transmission. Gluing and injection molding create a good seal, enhancing the connector's waterproof rating. The crimping and injection molding of shielded copper tube 120 to the cable provide additional mechanical support, improving the connector's durability and reliability. This method of crimping and injection molding simplifies the connector assembly process and improves production efficiency.

[0053] In one embodiment, an outer sleeve 220 is further included, and the outer sleeve 220 includes a front outer sleeve 220 and a rear outer sleeve 220. The front outer sleeve 220 is sleeved on the exposed part of the shielding copper tube 120, and the rear outer sleeve 220 is arranged on the cable.

[0054] The outer sleeve 220 is composed of two parts: a front outer sleeve 220 and a rear outer sleeve 220 . In the transition area between the connector and the cable, the front outer sleeve 220 and the rear outer sleeve 220 can form continuous protection.

[0055] To facilitate understanding of the technical solution of this application, the following provides a processing and assembly process of a circular connector to be protected by this application:

[0056] 1. Add a shielded copper tube to the connector, which can well protect the plug and cable from external interference.

[0057] 2. After the pins and wires are welded, the core wires are braided and turned over to the outer sheath and wrapped with copper foil on the cable outer sheath. The shielded copper tube is assembled to the connector and fixed. The shielded copper tube is riveted to make it crimped on the cable outer sheath. A shielding layer is formed between the shielded copper tube and the wire braiding layer to isolate external electromagnetic interference.

[0058] 3. After the shielded copper tube is crimped, apply glue from the glue holes on both sides of the shielded copper tube and fill the inside of the shielded copper tube with glue. The glue seals the shield to protect the core wire.

[0059] 4. Place the glue-filled connector into the mold and inject the outer mold to form an outer sleeve. The outer sleeve seals the entire shielded copper tube to achieve IP67 or IP68 level protection. At the same time, the outer sleeve has the function of stress relief, thereby increasing the service life of the cable.

[0060] The connectors and network cables in the related art may cause internal corrosion of the cable in a high humidity environment, damage the metal contacts or cause the expansion of the insulating material, affecting the connection performance. The above-mentioned connector provided in this application is used for PWE network cables. After the connector is welded, the outer sheath and braid are crimped with a shielded copper tube to achieve the effect of protecting the connector rubber core and shielding. The outer sheath injection molding further protects the connector from interference from the external environment, avoiding the situation where a high humidity environment may cause internal corrosion of the cable, damage the metal contacts or cause the expansion of the insulating material, affecting the connection performance.

[0061] The following continues to provide a processing and assembly process of a PWE network cable to be protected by this application:

[0062] Provide a cable. Strip the outer jacket at both ends, braid the cable, and then fold it over the outer jacket. Remove the aluminum foil and mylar filler. After braiding, wrap the outer jacket with copper foil. Assemble the shielded copper tube. Strip the core wires and solder the different colored core wires to the corresponding pin positions (PIN positions refer to the locations of the pin contacts in the connector for electrical connection) according to the pre-set wiring diagram. Push the shielded copper tube forward to cover the entire core wire and braided outer jacket. Rivet the shielded copper tube. Fill the riveted shielded copper tube with AB glue. After the glue solidifies, form an outer mold to form the outer sleeve.

[0063] The cable adopts UL20963 [(26AWG2P+F+AB)+22AWG4C]+F+AB+Tape (144 / 0.1 shielding rate ≥85%), OD:8.1±0.3MM, of which 2 pairs of twisted wires are used for signal transmission, and the remaining 4 strands are low-voltage current. The 2 pairs of twisted wires are designed with 2 layers of braided and aluminum foil shielding; the cable meets the requirements of drag chain cables.

[0064] Therefore, the circular connector is changed from assembly type to injection molding type, and a shielding copper tube is added inside. The shielding copper tube can effectively shield external interference. At the same time, the outer mold injection material isolates the shielding copper tube from the outside world, which can reduce the damage of the external environment to the internal components and increase the service life of the cable.

[0065] The terms "first," "second," "third," "fourth," "fifth," "sixth," "seventh," "eighth," "ninth," and so forth (if any) in the specification and claims of this application and in the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the application described herein can, for example, be implemented in orders other than those illustrated or described herein. In addition, the terms "including" and "corresponding to," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0066] The above is only a preferred specific implementation method of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and application concept of the present application within the technical scope disclosed in the present application, and they should be covered by the scope of protection of the present application.

Claims

1. A circular connector, characterized in that: include: A plug housing, the plug housing being configured to form a first hollow chamber with front and rear end openings; a shielded copper tube, the shielded copper tube comprising a front copper tube and a rear copper tube, the front copper tube and the rear copper tube being used to form a second hollow chamber that is conductive with the first hollow chamber, and the front copper tube being embedded in the rear end opening of the plug housing, while the rear copper tube being exposed and being used to be crimped and fixed to the outer jacket of the cable; an insulator, disposed in the first hollow chamber and the second hollow chamber; Multiple pins, the middle section of each pin is respectively arranged in the insulator, the front section of each pin is used to mate with the corresponding socket in the first hollow cavity, and the rear section of each pin is used to connect to the wire of the cable in the second hollow cavity; the rear section copper tube is also provided with a glue dispensing hole, which is used to fill the second hollow cavity with glue after the rear section of each pin is connected to the wire of the cable.

2. A circular connector according to claim 1, characterized in that: The outer side of the front end of the plug housing is provided with an external thread, and the outer side of the rear end of the plug housing forms a step with a circumferential diameter larger than the outer side of the front end of the plug housing.

3. A circular connector according to claim 2, characterized in that: The external thread is an M12×1 external thread, and the step on the outer side of the front end of the plug housing is a cylindrical structure, and the outer diameter of the cylindrical structure is 14.5 mm.

4. The circular connector according to claim 1, wherein: An insulating extension portion is provided on a portion of the insulating body away from the second hollow chamber. The insulating extension portion extends to the front end of the plug housing and forms a step surface.

5. The circular connector according to claim 1, characterized in that: The number of the dispensing holes is 2, and they are symmetrically arranged on the side wall of the rear copper tube.

6. The circular connector according to claim 5, characterized in that: The outer diameter of the shielding copper tube is 9 mm to 10 mm, and the diameter of the glue dispensing hole on the shielding copper tube is 3 mm to 4 mm.

7. A PWE network cable, characterized in that: It comprises a cable, at least one end of which is provided with a circular connector according to any one of claims 1 to 6, the circular connector comprising a plug housing, a shielded copper tube, an insulator and a plurality of pins, the rear section of the pins being connected to the wires of the cable, the rear end of the shielded copper tube being further provided with a glue dispensing hole, and the rear end of the shielded copper tube being crimped and injection-molded onto the outer sheath of the cable.

8. The PWE network cable according to claim 7, characterized in that: It also includes an outer sleeve, which includes a front outer sleeve and a rear outer sleeve. The front outer sleeve is sleeved on the exposed part of the shielding copper tube, and the rear outer sleeve is arranged on the cable.

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