Vehicle-mounted network connector with flexible positioning protection device
By using flexible sheath and metal film design in the on-board network connector, the cable position is locked, and the problems of excessive impedance and inconsistency of exposed wires are solved, the assembly speed and signal transmission performance are improved, and production difficulty and cost are reduced.
Patent Information
- Application Number
- CN202420440320.8
- 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 vehicle network connector, resulting in excessive impedance of the exposed wire, and the distance between the core wire and the inner wall of the shell is not easy to control, which increases production difficulty and cost, and at the same time, poor impedance consistency.
The vehicle-mounted network connector with flexible positioning protection device is adopted. The connector includes a plastic sleeve and a flexible sheath of metal film. It passes through a solid wire through hole and is a core wire. It uses a small gap sleeve shell of metal film to lock the cable position and reduce impedance inconsistency.
It improves assembly speed and accuracy, reduces wire wear, reduces shell accuracy requirements, reduces production costs and difficulty, and improves signal transmission performance.
Smart Images
Figure CN222763326U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the electrical field, in particular to a vehicle-mounted network connector with a flexible positioning protection device. 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 difficult 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, and the assembly is not easy to control; second, the outer shell is used as a shielding layer, and the outer shell cannot completely lock the wire, which makes the impedance consistency of this section of wire poor. Utility Model Content
[0003] In order to solve one or more of the above problems, the utility model provides an in-vehicle network connector with a flexible positioning protection device.
[0004] According to one aspect of the utility model, the vehicle network connector with a flexible positioning protection device comprises: a flexible sheath, the flexible sheath comprises a sheath body of a plastic material and a metal film, the sheath body is injection molded and a layer of metal film is uniformly formed on its outer surface by electroplating, and the sheath body is provided with at least two axial wire fixing through holes;
[0005] The socket has an axial plug-in terminal built in the socket, the socket fits the right end of the sleeve and the plug-in terminal faces the wire fixing through hole;
[0006] Cable, the exposed core wires of the cable are passed through the sleeve fixed wire through hole with equal diameter and the exposed metal core at the end is fixed to the plug-in terminal;
[0007] The outer shell has an outer sheath end of the cable fixed on the left end, a small gap sleeve metal film in the middle section, and a socket fixed on the right end.
[0008] In some embodiments, the metal film is made of copper.
[0009] In some embodiments, the plastic material of the sleeve is any one of PVC soft plastic material, TPR thermoplastic elastic material, TPE thermoplastic elastic material and rubber.
[0010] In some embodiments, a groove is further provided in the middle of the left side wall of the sleeve body, the groove connects two adjacent wire fixing through holes, and an arc dividing column is provided on the outer side of the groove.
[0011] In some embodiments, the diameter of the wire fixing through hole and the inner diameter of the core wire are matched with a small clearance;
[0012] In some embodiments, a guide chamfer is provided at the left end of the wire fixing through hole; or a rounded corner is provided at the right end of the wire fixing through hole.
[0013] In some embodiments, the left end of the sleeve is a left shaft body and the right end forms a large diameter positioning end head, thereby forming a two-section stepped shaft, the left end face of the positioning end head forms a positioning shoulder and the right end face fits the socket, the left shaft body sleeve is in the middle transition section of the outer shell, and the positioning end head and the socket sleeve are in the right connecting section of the outer shell.
[0014] In some embodiments, the left shaft body, the positioning end and the socket are elliptical, and the inner holes of the middle transition section and the right connecting section are elliptical holes.
[0015] 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 section of the shell, and the right end of the cable clamp is in contact with the outer sheath.
[0016] In some embodiments, the plug-in terminal is made of copper alloy, the socket is made of plastic, and the housing is made of metal.
[0017] The vehicle network connector with a flexible positioning protection device has the following beneficial effects: first, the flexible sheath has a sheath body made of a plastic material, and the plastic material is usually soft and has a certain elasticity, so the sheath body made of the plastic material has better assembly flexibility, can significantly improve the assembly speed, and at the same time, the hardness is relatively low compared to metal, and the hardness difference between the sheath body and the wire is small, which can significantly reduce the wear of the wire and effectively protect the cable, and the flexible sheath has a metal film, so when it is connected or in contact with the metal material of the shell, it can play the same fixed connection role, compared with all-metal parts, the cost is reduced and the assembly is more convenient; second, the fixed wire through hole of the flexible sheath is equal to the core wire of the sleeve and the metal film has a small gap in the sleeve shell, which effectively locks the position of the cable, and the impedance consistency of the exposed section of the wire is better, and the signal transmission performance is excellent; third, as an independent part, the outer contour and the fixed wire through hole of the flexible sheath 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; fourth, the addition of the flexible sheath is convenient for guiding the insertion angle of the plug-in terminal, facilitating assembly and production, and improving the production speed. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a cross-sectional schematic diagram of an in-vehicle network connector with a flexible positioning protection device according to an embodiment of the utility model;
[0019] Figure 2 for Figure 1 A three-dimensional schematic diagram of an in-vehicle network connector with a flexible positioning protection device is shown;
[0020] Figure 3 for Figure 1 A three-dimensional schematic diagram of the metal sheath shown;
[0021] Figure 4 for Figure 1 a three-dimensional schematic diagram of the cable shown;
[0022] Flexible sheath 1, sheath body 10, wire fixing through hole 100, positioning shoulder 101, positioning end 102, groove 103, guide chamfer 104, arc dividing column 105, transition chamfer 106, metal film 11;
[0023] Socket 2, plug-in terminal 20;
[0024] Cable 3, core wire 30, metal core 300, inner sheath 301, outer sheath 31, shielding layer 32;
[0025] Shell 4, left solid shell 40, middle transition section 401, right connecting section 402, left solid line section 403, right solid shell 41; cable clamp 5. DETAILED DESCRIPTION
[0026] 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.
[0027] Figures 1 to 4 The in-vehicle network connector with a flexible positioning protection device according to an embodiment of the utility model is schematically shown. As shown in the figure, the device includes:
[0028] The flexible sheath 1 comprises a sheath body 10 made of plastic material and a metal film 11. The sheath body 10 is injection molded and a layer of the metal film 11 is uniformly formed on its outer surface by electroplating. The sheath body 10 is provided with at least two axial wire fixing through holes 100.
[0029] The socket 2 has an axial plug-in terminal 20 built therein, the socket 2 fits the right end of the sleeve 10 and the plug-in terminal 20 faces the wire fixing through hole 100;
[0030] Cable 3, the exposed core wire 30 of the cable 3 is inserted into the fixed wire through hole 100 with equal diameter and the exposed metal core 300 at the end is fixed to the plug-in terminal 20;
[0031] The housing 4 has a left end fixed with the end of the outer jacket 31 of the cable 3 , a middle section with a small gap sleeve metal film 11 , and a right end fixed with the socket 2 .
[0032] The cable 3 includes an outer sheath 31, a shielding layer 32 and at least two core wires 30, the core wire 30 includes an inner sheath 301 and a metal core 300 sheathed on the inner wall of the inner sheath 301, the outer sheath 31 sleeve is connected to the outside of the shielding layer 32, and the shielding layer 32 is wrapped around all the core wires 30; the end of the cable 3 is the core wire 30 after the shielding layer 32 is stripped;
[0033] The vehicle network connector with a flexible positioning protection device adopts a flexible sheath 1 to effectively locate the position of the cable 3, and the fixed wire through hole 100 and the exposed core wire 30 are of equal diameter and are locked to protect the cable 3. The beneficial effects are: first, the flexible sheath 1 has a sheath body 10 made of plastic material, and the plastic material is usually soft and has a certain elasticity. Therefore, the sheath body 10 made of plastic material has better assembly flexibility and can significantly improve the assembly speed. At the same time, the hardness is lower than that of metal, and the hardness difference between the sheath body 10 and the wire is small, which can significantly reduce the wear of the wire and effectively protect the cable. In addition, the flexible sheath 1 has a metal film 11, so when it is connected or in contact with the metal material of the shell 4, It can play the same role of fixed connection, and compared with all-metal parts, it has lower costs and is more convenient to assemble; secondly, the fixed wire through hole 100 of the flexible sheath 1 is equal to the diameter of the shaft sleeve core wire 30, and the metal film 11 is in the small gap shaft sleeve shell 4, which effectively locks the position of the cable 3, and the impedance consistency of the exposed section of the wire is better, and the signal transmission performance is excellent; thirdly, the flexible sheath 1 is an independent part, and its outer contour and fixed wire through 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; fourthly, the addition of the flexible sheath 1 makes it easy to correct the insertion angle of the plug-in terminal 20, facilitates assembly and production, and improves production speed.
[0034] Preferably, the metal film 11 is made of copper, which has the beneficial effect that the metal film has good bonding strength and is easy to process.
[0035] Preferably, the plastic material of the sleeve 10 is any one of PVC soft plastic material, TPR thermoplastic elastic material, TPE thermoplastic elastic material and rubber. The beneficial effect is that the metal film 11 of this material has good softness and good elasticity, can well protect the core wire 30 and facilitate assembly.
[0036] Furthermore, a groove 103 is provided in the middle of the left side wall of the sleeve 10, the groove 103 connects two adjacent wire fixing through holes 100, and an arc dividing column 105 is provided outside the groove 103. The beneficial effect is that the groove 103 and the arc dividing column 105 facilitate the angle guidance of the core wire 30 and facilitate assembly.
[0037] Preferably, the diameter of the wire fixing through hole 100 and the diameter of the inner sleeve 301 of the core wire 30 are matched with a small gap; the beneficial effect is: the small gap match effectively ensures the position locking and facilitates the insertion of the core wire 30.
[0038] Preferably, a guide chamfer 104 is provided at the left end of the wire fixing through hole 100 ; the beneficial effect thereof is that the guide chamfer 104 facilitates guiding the direction of the core wire 30 .
[0039] Preferably, a rounded corner is provided at the right end of the wire fixing through hole 100. The beneficial effect is that the rounded corner can protect the contact part of the core wire 30 from being worn.
[0040] Further, the left end of the sleeve 10 is a left shaft body and the right end forms a large diameter positioning end 102, thereby forming a two-stage stepped shaft, the left end face of the positioning end 102 forms a positioning shoulder 101 and the right end face fits the socket 2, the contour of the positioning end 102 is the same as the contour of the socket 2, the left shaft body sleeve is in the middle transition section 401 of the shell 4, and the positioning end 102 and the socket 2 sleeve are in the right connecting section 402 of the shell 4. Its beneficial effect is that the positioning shoulder 101 effectively positions the flexible sheath 1 and the wire position, and improves the positioning accuracy.
[0041] Preferably, the inner hole of the left shaft body and the middle transition section 401 are matched with a small clearance, or the inner hole of the positioning end head 102 and the right connecting section 402 are matched with a small clearance.
[0042] Preferably, the edges of the left side surface of the left shaft body and the right side surface of the positioning end head 102 are both provided with soft rounded corners; the beneficial effect thereof is that the soft rounded corners can protect the contact parts and people and improve the installability.
[0043] Preferably, a transition chamfer 106 is further provided at the connection between the left shaft body and the positioning end head 102. The beneficial effect is that the transition chamfer 106 can improve the overall strength of the flexible sheath 1 and avoid local stress.
[0044] Preferably, the left shaft body, the positioning end 102 and the socket 2 are oval, and the inner holes of the middle transition section 401 and the right connecting section 402 are oval holes. The beneficial effect is that the oval shape effectively prevents the relative rotation of the housing 4 and the flexible sheath 1, and maintains a good assembly position.
[0045] Furthermore, the end of the cable 3 is also provided with a section of the outer sheath 31 stripped off to expose the shielding layer 32, the cable clamp 5 is sleeved outside the shielding layer 32 and the outer end is located in the left fixed line segment 403 of the outer shell 4, and the right end of the cable clamp 5 is in contact with the outer sheath 31, thereby positioning and fixing the outer sheath 31; its beneficial effect is: the cable clamp 5 also serves as a support to ensure that the core wire 30 and the shielding layer 32 will not be damaged after the outer shell 4 is riveted, and the right end of the cable clamp 5 is the flexible sheath 1.
[0046] Preferably, the plug terminal 20 is made of copper alloy, the socket 2 is made of plastic, and the housing 4 is made of metal. The beneficial effects are: the copper alloy has good conductivity, the plastic has good insulation performance, and the metal housing 4 has good strength, maintaining the overall shape of the connector and ensuring long-term excellent performance.
[0047] Further, the housing 4 includes a left solid shell 40 and a right solid shell 41;
[0048] 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 socket 2 is fixed in the right connecting segment 402. The right end sleeve of the right solid shell 41 fixes the right end of the socket 2. The left end 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 flexible sheath 1 and the cable 3.
[0049] Furthermore, the plug-in end of the plug-in terminal 20 is located at the right end of the through hole of the socket 2, and the plug-in terminal 20 can be plugged with an external connector.
[0050] 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. An in-vehicle network connector with a flexible positioning protection device, characterized in that: include: A flexible sheath (1), the flexible sheath (1) comprising a sheath body (10) made of a plastic material and a metal film (11), the sheath body (10) being injection-molded and having an outer surface thereof uniformly formed with a layer of the metal film (11) by electroplating, the sheath body (10) being provided with at least two axial wire fixing through holes (100); A socket (2), wherein the socket (2) has an axial plug-in terminal (20) built therein, the socket (2) being fitted onto the right end of the sleeve (10) and the plug-in terminal (20) facing the wire fixing through hole (100); A cable (3), wherein the exposed core wires (30) of the cable (3) are uniformly inserted through the wire fixing through holes (100) and the exposed metal core (300) at the ends is fixed to the plug-in terminal (20); A shell (4), wherein the left end of the shell (4) fixes the end of the outer jacket (31) of the cable (3), the middle section of the shell (4) sleeves the metal film (11) with a small gap, and the right end fixes the socket (2).
2. The vehicle network connector with a flexible positioning protection device according to claim 1, characterized in that: The metal film (11) is made of copper.
3. The vehicle network connector with a flexible positioning protection device according to claim 1, characterized in that: The plastic material of the sleeve (10) is any one of PVC soft plastic material, TPR thermoplastic elastic material, TPE thermoplastic elastic material and rubber.
4. The vehicle network connector with a flexible positioning protection device according to claim 3, characterized in that: A groove (103) is also provided in the middle of the left side wall of the sleeve body (10), the groove (103) is connected to two adjacent wire fixing through holes (100), and an arc dividing column (105) is provided outside the groove (103).
5. The vehicle network connector with a flexible positioning protection device according to claim 4, characterized in that: The diameter of the wire fixing through hole (100) and the diameter of the inner quilt (301) of the core wire (30) are matched with a small clearance.
6. The vehicle network connector with a flexible positioning protection device according to claim 4, characterized in that: A guide chamfer (104) is provided at the left end of the wire fixing through hole (100); or a rounded corner is provided at the right end of the wire fixing through hole (100).
7. The vehicle network connector with a flexible positioning protection device according to claim 4, characterized in that: The left end of the sleeve (10) is a left shaft body and the right end forms a large-diameter positioning end head (102), thereby forming a two-stage stepped shaft. The left end face of the positioning end head (102) forms a positioning shoulder (101) and the right end face fits the socket (2). The left shaft body sleeve is in the middle transition section (401) of the outer shell (4), and the positioning end head (102) and the socket (2) sleeve are in the right connecting section (402) of the outer shell (4).
8. The vehicle network connector with a flexible positioning protection device according to claim 7, characterized in that: The left shaft body, the positioning end head (102) and the socket (2) are elliptical, and the inner holes of the middle transition section (401) and the right connecting section (402) are elliptical holes.
9. The vehicle network connector with a flexible positioning protection device according to any one of claims 1 to 8, characterized in that: The end of the cable (3) is also provided with a section where the outer sheath (31) is stripped off to expose the shielding layer (32); the cable clamp (5) is sleeved outside the shielding layer (32) and the outer end is located in the left fixed line section (403) of the outer shell (4); the right end of the cable clamp (5) is in contact with the outer sheath (31).
10. The vehicle network connector with a flexible positioning protection device according to claim 9, characterized in that: The plug-in terminal (20) is made of copper alloy, the socket (2) is a plastic part, and the housing (4) is made of metal.