Ethernet connector

Abstract

The utility model discloses an Ethernet connector, which comprises a first shell and a second shell connected with the first shell front and back, an insulator is arranged in the first shell, two signal channels are arranged in the insulator, signal terminals are inserted in the signal channels, and the rear ends of the signal terminals are connected with cables; wherein the signal channel comprises an opening part, a middle part and a tail end part from front to back, and the diameter of the opening part and / or the tail end part is larger than that of the middle part. According to the Ethernet connector required to be protected, the signal channels with different diameters are arranged in the insulator, and the slots are formed in the signal terminals, so that the signal terminals are fixed when the signal terminals are inserted into the signal channels and the slots are shrunk, and the outer diameters of the signal terminals are tightly attached to the insulator; therefore, the function of preventing the signal terminals from being eccentric is achieved, and the assembly process is simple.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric connector, especially to an Ethernet connector. BACKGROUND

[0002] Due to the assembly gap, after the terminal is inserted into the insulator, the final position is not strictly fixed, but can produce a small random radial offset in the jack. This causes the head of the terminal (i.e. the key part in contact with the mating connector) to be randomly attached to the inner wall of the insulator jack, thereby causing the eccentricity of the terminal head. This eccentricity not only affects the appearance consistency of the product, but more seriously, it can cause poor contact when the mating connector is inserted, unstable signal transmission performance, and even damage the precision contact structure of the terminal due to uneven insertion stress, ultimately affecting the reliability and transmission quality of the entire Ethernet connection system; therefore, how to effectively control and correct the eccentricity of the terminal in the insulator under the design framework of the gap fit has become an important technical issue to improve the quality and performance consistency of Ethernet connector products. SUMMARY

[0003] The embodiment of the application provides an Ethernet connector which can effectively prevent the eccentricity of the signal terminal.

[0004] In order to achieve the above purpose, the technical scheme adopted by the utility model is: an Ethernet connector, comprising: a first shell, a second shell connected to the front and back of the first shell, an insulator installed inside the first shell, two signal channels provided inside the insulator, a signal terminal inserted into the inside of the signal channel, and a cable connected to the rear end of the signal terminal.

[0005] The signal channel comprises an opening part, an intermediate part and a tail end part from front to back, and the diameter of the opening part and / or the tail end part is greater than the diameter of the intermediate part.

[0006] As a further technical solution, the signal terminal comprises a plug segment, a fixed segment and a clamping segment, and the diameter of the fixed segment is not less than the diameter of the intermediate part.

[0007] Further, a slit extending in the front-rear direction is provided on the fixed segment of the signal terminal, and the slit is used for elastic contraction when the signal terminal is installed in the signal channel.

[0008] As a further technical solution, the tail end part comprises a first receiving segment and a second receiving segment, a transition slope is provided between the first receiving segment and the second receiving segment, a limiting structure upwardly protruding is provided between the fixed segment and the clamping segment of the signal terminal, and the limiting structure abuts on the transition slope to limit the position of the signal terminal.

[0009] As a further technical solution, the inner side wall of the first receiving section is provided with a retreat prevention groove, and the fixed section of the signal terminal is provided with a pair of outwardly raised elastic sheets, the elastic sheets are inserted into the retreat prevention groove, and are used for preventing the signal terminal from withdrawing from the signal channel.

[0010] Further, the diameter of the first receiving section is smaller than the diameter of the second receiving section.

[0011] Further, the first shell is sleeved on the peripheral side of the insulator, is used for realizing signal shielding for the signal terminal, and the front end portion of the second shell is arranged inside the first shell, and the rear end is used for riveting and pressing the cable.

[0012] Further, the rear surface of the insulator is provided with a protrusion, the front end of the second shell is provided with an opening, the protrusion is clamped into the opening, and the second shell and the insulator are fixed together.

[0013] The beneficial effects of the utility model lie in that the Ethernet connector of the application is fixed by setting signal channels with different diameters in the insulator, setting slits on the signal terminal, and shrinking the slits with the signal terminal inserted into the signal channel, so that the outer diameter of the signal terminal is closely combined with the insulator, thereby preventing the signal terminal from being eccentric, and the assembly is simple. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of the Ethernet connector in the utility model embodiment;

[0015] Figure 2 It is an explosion structure schematic view of the Ethernet connector in the utility model embodiment;

[0016] Figure 3 It is a cross section structure schematic view of the Ethernet connector in the utility model embodiment;

[0017] Figure 4 It is a cross section structure schematic view of the insulator of the Ethernet connector in the utility model embodiment;

[0018] Figure 5 It is a structure schematic view of the signal terminal of the Ethernet connector in the utility model embodiment;

[0019] Reference numerals: 10-First housing, 20-Second housing, 201-Opening, 30-Insulator, 31-Signal channel, 301-Opening, 302-Middle section, 303-Tail end, 3031-First receiving section, 3032-Transition slope, 3033-Second receiving section, 32-Anti-reverse groove, 33-Protrusion, 40-Cable, 50-Signal terminal, 501-Plug section, 502-Fixing section, 5021-Spring, 5022-Slit, 5023-Limiting structure, 503-Clamping section, 60-Wire clamp. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] like Figures 1 to 2 As shown, an Ethernet connector includes: a first housing 10, a second housing 20, an insulator 30, a cable 40, and signal terminals 50. The second housing 20 is connected to the first housing 10 along the front-to-back direction or the two are integrally formed. In this embodiment, the front-to-back direction can also be defined as the length direction or the insertion direction. An insulator 30 is installed inside the first housing 10. Two signal channels 31 are arranged along the length direction inside the insulator 30. A signal terminal 50 is inserted into the interior of each signal channel 31. The rear end of the signal terminal 50 is connected to the cable 40. Referring to... Figure 4 The signal channel 31 includes an opening 301, a middle section 302 and a tail section 303 from front to back. The diameter of the opening 301 and / or the tail section 303 is larger than the diameter of the middle section 302.

[0022] The opening part 301 of the signal channel 31 has a large diameter, facilitating the initial insertion and alignment of the signal terminal 50 and the cable 40, reducing the assembly difficulty, and the enlarged design of the tail end part 303 provides more sufficient space for the connection of the cable 40, making the welding or crimping operation easier to perform and being beneficial to relieve the mechanical stress at the connection and improve the connection reliability; then by designing the middle part 302 of the signal channel 31 as a uniform section with a smaller diameter, a stable and tight wrapping of the signal terminal 50 can be formed, which is helpful to maintain a consistent characteristic impedance, reduce reflection and attenuation in the signal transmission process, and thus improve the integrity and stability of high-frequency signal transmission; the diameter of the tail end part 303 is larger than that of the middle part 302, creating a buffer space for the connection point of the cable 40 and the signal terminal 50, and this design can effectively absorb external stresses such as pulling and bending from the cable, prevent these stresses from being directly transmitted to the precise middle contact area, protect the signal terminal 50 from damage, and prolong the service life of the connector.

[0023] As shown in Figure 5 The signal terminal 50 includes a plug section 501, a fixed section 502, and a clamping section 503, and the diameter of the fixed section 502 is not less than that of the middle part 302; the fixed section 502 of the signal terminal 50 is provided with a slit 5022 extending in the front-rear direction, which is used for elastic contraction when the signal terminal 50 is installed in the signal channel 31.

[0024] This embodiment creates a reliable interference fit, utilizing the elastic deformation of the material itself to tightly clamp and "lock" the signal terminal 50 inside the insulator 30, effectively preventing the signal terminal 50 from loosening or retreating in daily plugging or vibration environment. By setting the slit 5022 to achieve elastic contraction, the outer surface of the fixed section 502 can maintain uniform and tight contact with the inner wall of the middle part 302 of the signal channel 31, and this tight contact not only provides mechanical fixation, but also ensures the stability of the electrical contact impedance between the signal terminal 50 and the insulator 30, which is crucial for maintaining the constant characteristic impedance required for high-speed signal transmission, reducing signal reflection, and thus improving overall signal integrity. In addition, this self-locking fixation method relying on elastic deformation usually does not require additional buckle structures to be designed on the insulator 30 or the use of separate fixing components, which simplifies the complexity of the insulator 30 mold and enables the installation of the signal terminal 50 to be completed through a simple straight-line crimping action, which is very suitable for automated production, thereby improving assembly efficiency and reducing manufacturing costs.

[0025] Referring to Figure 4 and Figure 5The tail end 303 includes a first receiving section 3031 and a second receiving section 3033. A transition slope 3032 is provided between the first receiving section 3031 and the second receiving section 3033. An upwardly tilted limiting structure 5023 is provided between the fixing section 502 and the clamping section 503 of the signal terminal 50. The limiting structure 5023 abuts against the transition slope 3032 to limit the position of the signal terminal 50. The inner side wall of the first receiving section 3031 is provided with a backstop groove 32. A pair of outwardly tilted spring pieces 5021 are provided on the fixing section 502 of the signal terminal 50. The spring pieces 5021 are inserted into the backstop groove 32 to prevent the signal terminal 50 from exiting the signal channel 31. The diameter of the first receiving section 3031 is smaller than the diameter of the second receiving section 3033.

[0026] The combination of the limiting structure 5023 and the transition slope 3032 achieves precise positioning, and the interlocking of the spring piece 5021 and the anti-retraction groove 32 achieves a robust anti-retraction collaborative design, together forming an efficient and reliable terminal fixing system, which simultaneously solves the core requirements of Ethernet connectors in terms of accuracy, holding force, manufacturability and long-term durability.

[0027] like Figure 2 and Figure 3 As shown, the first outer shell 10 is fitted around the insulator 30 to shield the signal terminal 50. The front end of the second outer shell 20 is located inside the first outer shell 10, and the rear end is used for crimping the cable 40. A wire clamp 60 is also crimped between the cable 40 and the second outer shell 20 to fix the cable 40. The rear surface of the insulator 30 has a protrusion 33, and the front end of the second outer shell 20 has an opening 201. The protrusion 33 is inserted into the opening 201 to fix the second outer shell 20 and the insulator 30 together.

[0028] The manufacturing process of the aforementioned Ethernet connector is roughly as follows:

[0029] 1. Strip the outer sheath: Peel off the outer sheath of the cable to expose the inner core wires and shielding layer;

[0030] 2. Wire clamp: Rivet the wire clamp 60 to the part of the cable with the outer sheath stripped to complete the fixation of the shielding layer;

[0031] 3. Stripping the wire core: Removing the insulation layer of the inner core wire to expose the metal conductor portion;

[0032] 4. Terminal assembly and crimping: Insert the signal terminal 50 into the core conductor of the cable 40 in the above semi-finished product, and use the crimping process to make the signal terminal 50 tightly connected to the core conductor, thus completing the processing of the cable and terminal;

[0033] 5. Shell semi-product: the first shell 10 and the second shell 20 are assembled or integrally formed, and the insulator 30 is installed in the shells;

[0034] 6. Assembly and riveting: the signal terminal 50 and the semi-product of the core wire are installed in the shell semi-product, and are riveted and crimped to form.

[0035] The technical features of the above-described embodiments can be combined in any manner. For the sake of brevity, not all possible combinations of the technical features in the above-described embodiments are described, but it should be understood that any combination of the technical features is within the scope of the present disclosure as long as the combination does not result in contradictions.

[0036] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrated; can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] In the description of the present embodiment, the terms "upper", "lower", "front", "rear" and other orientation or position relationships are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0038] The above-described embodiments only express the implementation of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the protection scope of the present application. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of protection of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. An Ethernet connector, characterized by The utility model relates to a signal terminal, which comprises: a first shell, a second shell connected with the first shell in front and back, an insulator mounted inside the first shell, two signal channels provided inside the insulator, a signal terminal inserted inside the signal channels, and a cable connected to the rear end of the signal terminal; wherein the signal channel comprises an opening part, an intermediate part and a tail end part from front to back, and the diameter of the opening part and / or the tail end part is larger than that of the intermediate part.

2. The Ethernet connector of claim 1, wherein: The signal terminal comprises a plug segment, a fixed segment and a clamping segment, and the diameter of the fixed segment is not less than that of the intermediate part.

3. The Ethernet connector of claim 2, wherein: A slit extending in the front-rear direction is provided on the fixed segment of the signal terminal, and the slit is used for elastic contraction when the signal terminal is mounted in the signal channel.

4. The Ethernet connector of claim 2, wherein: The tail end part comprises a first receiving segment and a second receiving segment, a transition slope is provided between the first receiving segment and the second receiving segment, a limiting structure upwardly protruding is provided between the fixed segment and the clamping segment of the signal terminal, the limiting structure abuts against the transition slope to limit the position of the signal terminal.

5. The Ethernet connector of claim 4, wherein: An internal side wall of the first receiving segment is provided with a retreat-preventing groove, a pair of outwardly protruding elastic pieces are provided on the fixed segment of the signal terminal, the elastic pieces are inserted into the retreat-preventing groove to prevent the signal terminal from being withdrawn from the signal channel.

6. The Ethernet connector of claim 4, wherein: The diameter of the first receiving segment is smaller than that of the second receiving segment.

7. The Ethernet connector of claim 1, wherein: The first shell is sleeved on the circumferential side of the insulator to realize signal shielding for the signal terminal, the front end of the second shell is arranged inside the first shell, and the rear end is used for riveting and pressing the cable.

8. The Ethernet connector of claim 1, wherein: A protrusion is provided on the rear surface of the insulator, the front end of the second shell is provided with an opening, the protrusion is clamped into the opening, and the second shell and the insulator are fixed together.

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