Novel vehicle-mounted Ethernet connector
By using metal sheathing and positioning shoulder locking wires in vehicle-mounted Ethernet connectors, the problems of excessive impedance and poor impedance consistency of exposed wires are solved, achieving better signal transmission performance and production efficiency.
Patent Information
- Application Number
- CN202420440507.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-07
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-03-07
AI Technical Summary
The shielding layer needs to be stripped off at the crimp terminals at the end of the cable of the existing automotive Ethernet connector, resulting in too high impedance of the exposed wire and the housing cannot completely lock the wire, resulting in poor impedance consistency.
Metal sheath is used as a protective shield, and the wire through the wire hole and exposed core wire are used to lock the wire, and the position of the metal sheath and wire are effectively positioned.
Effectively lock the wire, reduce the impedance of the exposed wire, improve signal transmission performance, simplify the accuracy requirements of the shell, and reduce production difficulty and cost.
Smart Images
Figure CN222763327U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the electrical field, in particular to a novel vehicle-mounted Ethernet connector. Background Art
[0002] In today's society, various vehicles are widely used in various fields of life and production, and the demand for high-quality networks in vehicles is also increasing. Ethernet connectors are used in vehicle network systems. In the production of connectors, a part of the shielding layer of the wire needs to be stripped off at the crimping terminal at the end of the cable, resulting in excessive impedance of the exposed part of the cable without an outer sheath. At present, the outer shell is as close as possible to the inner sheath of the core wire of the cable to reduce the impedance of this part of the exposed wire. The defects are: first, the distance between the inner sheath of the core wire and the inner wall of the outer shell is not easy to control, so the size control requirements of the outer shell are high, which greatly increases the difficulty and cost of the outer shell production; second, the outer shell is used as a shielding layer, and the outer shell cannot completely lock the wire, resulting in poor impedance consistency of this section of wire. Utility Model Content
[0003] In order to solve one or more of the above problems, the utility model provides a novel vehicle-mounted Ethernet connector.
[0004] According to one aspect of the utility model, the novel vehicle-mounted Ethernet connector comprises: a metal sheath, a cable, a fixing seat and a housing;
[0005] The metal sheath is a two-section stepped shaft with a positioning shoulder in the middle, and is provided with at least two parallel axial wire holes. The left shaft body of the metal sheath is sleeved in the middle transition section of the shell, and the right shaft end is sleeved in the right connecting section of the shell. The positioning shoulder fits the positioning end face on the right side of the middle transition section, and the right side face of the right shaft end fits the fixing seat.
[0006] The outer end of the cable is fixed to the left fixed wire section of the outer shell, the exposed core wire is passed through the wire hole of the sleeve with equal diameter, and the exposed metal core is fixed to the plug-in terminal in the fixing seat;
[0007] The fixing seat is fixed in the right connecting section of the shell.
[0008] In some embodiments, the diameter of the wire hole and the inner diameter of the core wire are matched with a small clearance;
[0009] Or the small clearance fit between the left shaft and the inner hole of the middle transition section,
[0010] Or the right shaft end and the right connecting section have a small clearance fit with the inner hole.
[0011] In some embodiments, a guide chamfer is provided at the left end of the wire hole;
[0012] Or a rounded corner is provided at the right end of the wire hole.
[0013] In some embodiments, a transition chamfer is further provided at the connection between the left shaft body and the right shaft end.
[0014] In some embodiments, a groove is further provided in the middle of the left side wall of the left shaft body, the groove connects two adjacent wire holes, and an arc dividing column is provided on the outer side of the groove.
[0015] In some embodiments, edges of the left side surface of the left shaft body and the right side surface of the right shaft end are both provided with soft rounded corners.
[0016] In some embodiments, the left shaft body and the right shaft end are elliptical, and the inner holes of the middle transition section and the right connecting section are elliptical holes.
[0017] In some embodiments, the cable end is also provided with a section of the outer sheath being stripped to expose the shielding layer, the cable clamp is sleeved outside the shielding layer and the outer end is located in the left fixed line segment of the shell, and the right end of the cable clamp is in contact with the outer sheath, thereby positioning and fixing the outer sheath.
[0018] In some embodiments, the housing includes a left solid shell and a right solid shell;
[0019] The left solid shell includes a left solid line segment, a middle transition segment and a right connecting segment which are sequentially connected on the left and right sides. The intersection of the middle transition segment and the right connecting segment forms a positioning end surface. The left end of the fixing seat is fixed in the right connecting segment. The right end of the right solid shell is sleeved on the right end of the fixing seat. The left end of the right solid shell is sleeved outside the right connecting segment.
[0020] The plug-in end of the plug-in terminal is located at the right end of the through hole of the fixing seat, and the plug-in terminal can be plugged with an external connector.
[0021] In some embodiments, the plug-in terminal is made of copper alloy, the fixing seat is made of plastic, and the housing is made of metal.
[0022] The novel vehicle-mounted Ethernet connector adopts a metal sheath as a protective shielding part, and the wire hole and the exposed core wire are of equal diameter and locked in the sheath. The positioning shoulder effectively positions the metal sheath and the wire. The beneficial effects are: first, the wire hole of the metal sheath matches the core wire of the cable well, effectively locking the wire. At the same time, the positioning shoulder accurately determines the position of the metal sheath, and effectively locks the position of the cables with each other's sheaths. The impedance consistency of the exposed section of the wire is better, and the signal transmission performance is excellent; second, the metal sheath is an independent part, and its outer contour and wire hole can be accurately processed and obtained, which greatly reduces the precision requirements of the shell and effectively reduces the difficulty and cost of the production of the shell; third, the addition of the metal sheath facilitates the correction of the insertion angle of the plug-in terminal, facilitates assembly and production, and improves production speed. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 A three-dimensional schematic diagram of a novel vehicle-mounted Ethernet connector according to an embodiment of the utility model;
[0024] Figure 2 for Figure 1 A three-dimensional schematic diagram of the new automotive Ethernet connector with the housing removed;
[0025] Figure 3 for Figure 2 A three-dimensional schematic diagram of the metal sheath shown;
[0026] Figure 4 for Figure 2 a three-dimensional schematic diagram of the cable shown;
[0027] Metal sheath 1, wire hole 100, positioning shoulder 101, left shaft body 102, right shaft end 103, guide chamfer 104, soft fillet 105, transition chamfer 106, groove 107, arc dividing column 108;
[0028] Cable 2, core wire 20, metal core 200, inner sheath 201, outer sheath 21, shielding layer 22;
[0029] Fixed seat 3;
[0030] Shell 4, left solid shell 40, middle transition section 401, right connecting section 402, left solid line section 403, right solid shell 41; plug-in terminal 5; cable clamp 6. DETAILED DESCRIPTION
[0031] The present invention is further described in detail below in conjunction with the accompanying drawings. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.
[0032] Figures 1 to 4 A new vehicle Ethernet connector according to an embodiment of the present utility model is schematically shown. As shown in the figure, the device comprises: a metal sheath 1, a cable 2, a fixing seat 3 and a housing 4;
[0033] The metal sheath 1 is a two-section stepped shaft with a positioning shoulder 101 in the middle, and is provided with at least two parallel axial wire holes 100. The left shaft body 102 of the metal sheath 1 is sleeved in the middle transition section 401 of the housing 4, and the right shaft end 103 is sleeved in the right connecting section 402 of the housing 4. The positioning shoulder 101 fits the positioning end face on the right side of the middle transition section 401, and the right side face of the right shaft end 103 fits the fixing seat 3.
[0034] The end of the outer sheath 21 of the cable 2 is fixed to the left fixed wire segment 403 of the outer shell 4, the exposed core wire 20 is passed through the wire hole 100 with equal diameter, and the exposed metal core 200 is fixed to the plug-in terminal 5 in the fixing seat 3;
[0035] The fixing seat 3 is fixed in the right connecting section 402 of the outer shell 4 .
[0036] The novel vehicle-mounted Ethernet connector adopts a metal sheath 1 as a protective shielding member, a wire hole 100 and an exposed core wire 20 of equal diameter are sleeved to lock the wire, and a positioning shoulder 101 effectively positions the metal sheath 1 and the wire, and has the following beneficial effects: first, the wire hole 100 of the metal sheath 1 matches the core wire 20 of the cable 2 well, effectively locking the wire, and at the same time, the positioning shoulder 101 accurately determines the position of the metal sheath 1, and effectively locks the position of the cables 2 with each other's sleeves, and the impedance consistency of the exposed section of the wire is better, and the signal transmission performance is excellent; second, the metal sheath 1 is an independent part, and its outer contour and wire hole 100 can be accurately processed and obtained, which greatly reduces the precision requirements of the shell 4 and effectively reduces the difficulty and cost of the production of the shell; third, the addition of the metal sheath 1 facilitates the correction of the insertion angle of the plug-in terminal 5, facilitates assembly and production, and improves the production speed.
[0037] The cable 2 includes an outer sheath 21, a shielding layer 22 and at least two core wires 20, the core wire 20 includes an inner sheath 201 and a metal core 200 sheathed on the inner wall of the inner sheath 201, the outer sheath 21 sleeve is connected to the outside of the shielding layer 22, and the shielding layer 22 is wrapped around all the core wires 20; the end of the cable 2 is the core wire 20 after the shielding layer 22 is stripped;
[0038] Preferably, the end of the cable 2 is also provided with a section of the outer sheath 21 stripped off to expose the shielding layer 22, the cable clamp 6 is sleeved outside the shielding layer 22 and the outer end is located in the left fixed line segment 403 of the outer shell 4, the right end of the cable clamp 6 fits the outer sheath 21, thereby positioning and fixing the outer sheath 21, and serving as a support to ensure that the core wire 20 and the shielding layer 22 are not damaged after the outer shell 4 is riveted, and the right end of the cable clamp 6 is the metal sheath 1.
[0039] Preferably, the plug-in end of the plug-in terminal 5 is located at the right end of the through hole of the fixing seat 3, and the plug-in terminal 5 can be plugged with an external connector.
[0040] Preferably, the diameter of the through hole 100 and the diameter of the inner sleeve 201 of the core wire 20 are matched with a small gap. The beneficial effect is that the small gap is matched, the position is locked effectively, and the core wire 20 is easy to wear.
[0041] Preferably, the left shaft body 102 and the middle transition section 401 are matched with a small gap.
[0042] The right shaft end 103 and the right connecting section 402 are matched with a small clearance. The beneficial effect is that the two are arranged to facilitate processing and assembly, thereby increasing production speed.
[0043] Preferably, the left shaft body 102 and the right shaft end 103 are elliptical, and the inner holes of the middle transition section 401 and the right connecting section 402 are elliptical holes; the beneficial effect is that the ellipse effectively prevents the relative rotation of the outer shell 4 and the metal sheath 1, and maintains a good assembly position.
[0044] Preferably, the right shaft end 103 is larger than the left shaft body 102. The beneficial effect is that this arrangement facilitates assembly and positioning.
[0045] Preferably, a guide chamfer 104 is provided at the left end of the wire through hole 100 ; the beneficial effect thereof is that the guide chamfer 104 facilitates guiding the direction of the core wire 20 .
[0046] Preferably, a rounded corner is provided at the right end of the wire hole 100. The beneficial effect is that the rounded corner can protect the contact part of the core wire from being worn.
[0047] Preferably, a transition chamfer 106 is further provided at the connection between the left shaft body 102 and the right shaft end 103. The beneficial effect is that the transition chamfer 106 can improve the overall strength of the metal sheath 1 and avoid local stress.
[0048] Preferably, a groove 107 is further provided in the middle of the left side wall of the left shaft body 102, the groove 107 connects two adjacent wire holes 100, and an arc dividing column 108 is provided outside the groove 107. The beneficial effect is that the groove 107 and the arc dividing column 108 facilitate the angle guidance of the core wire 20.
[0049] Preferably, the edges of the left side surface of the left shaft body 102 and the right side surface of the right shaft end 103 are both provided with soft rounded corners 105. The beneficial effect is that the soft rounded corners 105 can protect the contact parts and people.
[0050] Preferably, the housing 4 includes a left solid shell 40 and a right solid shell 41;
[0051] The left solid shell 40 includes a left solid line segment 403, a middle transition segment 401 and a right connecting segment 402 which are connected in sequence on the left and right sides. The intersection surface of the middle transition segment 401 and the right connecting segment 402 forms a positioning end surface. The left end of the fixing seat 3 is fixed in the right connecting segment 402. The right end shaft sleeve of the right solid shell 41 is fixed to the right end of the fixing seat 3. The left end shaft sleeve of the right solid shell 41 is outside the right connecting segment 402. The beneficial effect is that the shell 4 effectively realizes the fixation of the metal sheath 1 and the cable 2.
[0052] Preferably, the plug terminal 5 is made of copper alloy, the fixing seat 3 is a plastic part, and the shell 4 is made of metal. The beneficial effects are: the copper alloy material has good conductivity, the plastic part has good insulation performance, and the metal shell 4 has good strength, maintaining the overall shape of the connector and ensuring long-term excellent performance.
[0053] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.
Claims
1. A new type of vehicle Ethernet connector, characterized in that: It comprises: a metal sheath (1), a cable (2), a fixing seat (3) and a housing (4); The metal sheath (1) is a two-section stepped shaft with a positioning shoulder (101) in the middle, and is provided with at least two parallel axial wire holes (100). The left shaft body (102) of the metal sheath (1) is sleeved in the middle transition section (401) of the housing (4), and the right shaft end (103) is sleeved in the right connecting section (402) of the housing (4). The positioning shoulder (101) fits the positioning end face on the right side of the middle transition section (401), and the right side face of the right shaft end (103) fits the fixing seat (3). The end of the outer sheath (21) of the cable (2) is fixed to the left fixed wire segment (403) of the outer shell (4), the exposed core wire (20) is inserted into the wire hole (100) with equal diameter, and the exposed metal core (200) is fixed to the plug-in terminal (5) in the fixing seat (3); The fixing seat (3) is fixed in the right connecting section (402) of the outer shell (4).
2. The novel vehicle-mounted Ethernet connector according to claim 1 is characterized in that: The diameter of the wire hole (100) and the diameter of the inner quilt (201) of the core wire (20) are matched with a small clearance; or the inner holes of the left shaft body (102) and the middle transition section (401) are matched with a small clearance, Or the right shaft end (103) and the inner hole of the right connecting section (402) are matched with a small clearance.
3. The novel vehicle-mounted Ethernet connector according to claim 2 is characterized in that: The left end of the wire through hole (100) is provided with a guide chamfer (104); or the right end of the wire through hole (100) is provided with a rounded corner.
4. The novel vehicle-mounted Ethernet connector according to claim 3 is characterized in that: A transition chamfer (106) is also provided at the connection between the left shaft body (102) and the right shaft end (103).
5. The novel vehicle-mounted Ethernet connector according to claim 3 is characterized in that: A groove (107) is also provided in the middle of the left side wall of the left shaft body (102), the groove (107) being connected to two adjacent wire holes (100), and an arc dividing column (108) is provided outside the groove (107).
6. The novel vehicle-mounted Ethernet connector according to claim 3 is characterized in that: The edges of the left side surface of the left shaft body (102) and the right side surface of the right shaft end (103) are both provided with soft rounded corners (105).
7. The novel vehicle-mounted Ethernet connector according to claim 2, characterized in that: The left shaft body (102) and the right shaft end (103) are elliptical, and the inner holes of the middle transition section (401) and the right connecting section (402) are elliptical holes.
8. The novel vehicle-mounted Ethernet connector according to claim 1, characterized in that: The end of the cable (2) is also provided with a section where the outer sheath (21) is stripped off to expose the shielding layer (22); the cable clamp (6) is sleeved outside the shielding layer (22) and the outer end is located in the left fixed line section (403) of the housing (4); the right end of the cable clamp (6) is in contact with the outer sheath (21), thereby positioning and fixing the outer sheath (21).
9. The novel vehicle-mounted Ethernet connector according to claim 1, characterized in that: The housing (4) comprises a left solid shell (40) and a right solid shell (41); The left solid shell (40) comprises a left solid line segment (403), a middle transition segment (401) and a right connecting segment (402) which are sequentially connected on the left and right sides; the intersection of the middle transition segment (401) and the right connecting segment (402) forms a positioning end surface; the left end of the fixing seat (3) is fixed in the right connecting segment (402); the right end shaft sleeve of the right solid shell (41) fixes the right end of the fixing seat (3); and the left end shaft sleeve of the right solid shell (41) is outside the right connecting segment (402); The plug-in end of the plug-in terminal (5) is located at the right end of the through hole of the fixing seat (3), and the plug-in terminal (5) can be plugged into an external connector.
10. The novel vehicle-mounted Ethernet connector according to any one of claims 1 to 9, characterized in that: The plug-in terminal (5) is made of copper alloy, the fixing seat (3) is a plastic part, and the housing (4) is made of metal.