Wire harness easy to disassemble and assemble
By using a transparent inner skeleton and a locking ring with a backstop pin in the wire harness, the problems of difficult assembly and complex disassembly of traditional wire harnesses are solved, resulting in an easy-to-assemble and disassemble wire harness that improves production efficiency and assembly accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN AOLI ELECTRONICS CO LTD
- Filing Date
- 2025-03-03
- Publication Date
- 2026-04-17
AI Technical Summary
In the traditional wiring harness assembly process, the insertion of metal terminals is difficult and the disassembly is complicated, resulting in low production efficiency and high costs, especially in the automotive industry where model changes are frequent.
A transparent inner skeleton is used to initially position the metal terminals, and the cooperation of anti-reverse pins and locking rings enables the visual insertion and simplified disassembly of the metal terminals and connectors. Anti-reverse pins are used to connect the metal terminals and connectors together, and finally the locking rings are used for shielding and protection.
This reduces the difficulty of assembling and disassembling wire harnesses, improves production efficiency and assembly accuracy, and reduces the complexity and cost of manual operations.
Smart Images
Figure CN224138459U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wire harness design technology, and in particular to an easy-to-disassemble wire harness. Background Technology
[0002] Wire harnesses are essential electrical signal transmission media in electronic devices. Each wire harness, based on the number of electrical signal transmission channels and connection requirements of the objects it connects to, is equipped with a corresponding number of wires, metal terminals, and connectors. Wire harnesses are typical non-standard products; different devices (such as automobiles, home appliances, and industrial machinery) have vastly different requirements for wire harness specifications, lengths, and interface designs. The automotive industry, in particular, requires customized wire harnesses for different car models and even different configurations of the same model, resulting in small production batches and frequent model changes. Automated equipment requires frequent production line adjustments, leading to higher costs and time, while manual operation offers greater flexibility. Therefore, wire harness production still cannot completely eliminate manual labor.
[0003] In traditional wire harness assembly, after the metal terminals are riveted to the wires, the operator inserts the metal terminal into the connector from the tail end, and then uses the barbed structure formed by the spring clips on the metal terminal to lock it onto the connector, thus preventing it from slipping out. The drawback of this traditional design is:
[0004] Firstly, multiple metal terminals need to be precisely inserted into the same connector according to a preset array distribution. However, most connectors are non-transparent structures, making it easy to insert the metal terminals crookedly, which can damage the metal terminals. Furthermore, it is difficult for operators to visually inspect the metal terminals after insertion, making assembly difficult.
[0005] Secondly, when incorrect insertion of metal terminals leads to NG (Not Good) testing and rework, the metal terminals need to be removed from the connector. This requires the use of a special auxiliary tool. The auxiliary tip is inserted from the front of the connector to force the spring to retract, and then the metal terminal is pulled out. This operation needs to be performed on each metal terminal individually, which is difficult. Utility Model Content
[0006] Based on this, the present invention provides an easy-to-disassemble wire harness, which uses a transparent inner frame to initially position the metal terminals, then connects the metal terminals and connectors together through anti-reverse pins, and finally uses a locking ring to cover and protect the anti-reverse pins, thereby reducing the difficulty of disassembly and assembly.
[0007] An easy-to-disassemble wire harness, comprising:
[0008] Connector; the front end of the connector is provided with multiple terminal channels arranged in an array and along the axial direction; the terminal channels are provided with a first through hole arranged in a radial direction; the first through hole penetrates the terminal channels; the rear end of the connector is provided with a receiving groove that connects to the terminal channels;
[0009] The inner skeleton of the connector; the inner skeleton is made of transparent material; the inner skeleton is inserted into the storage slot from the rear end of the connector; the inner skeleton has an array of distributed grids;
[0010] Metal terminals connecting the inner frame; metal terminals are inserted one-to-one through the grid; the front end of the metal terminal passes through the front end of the inner frame and is inserted into the terminal channel, and the front end of the metal terminal is also provided with a second through hole that coincides with the first through hole.
[0011] A wire connecting to a metal terminal; the end of the wire is riveted to the rear end of the metal terminal;
[0012] The connector has a locking pin; the locking pin passes through the second through hole; and
[0013] Locking ring for connecting connector; the locking ring is sleeved on the front end of the connector and abuts against both ends of the anti-reverse pin.
[0014] The aforementioned easily detachable wiring harness is assembled by first riveting the rear end of the metal terminal to the end of the wire. Then, the metal terminal is inserted into the mesh of the inner frame. Because the inner frame is made of transparent material, the specific position of each metal terminal can be clearly seen during insertion. Next, the inner frame is inserted into the connector's storage slot, ensuring the front end of the metal terminal is inserted into the terminal channel until the first and second through holes align. Then, the anti-reverse pin is inserted into the second through hole, and the locking ring is axially fitted onto the front end of the connector, so that the inner side of the locking ring abuts against both ends of the anti-reverse pin. For disassembly, the locking ring is pulled out in the reverse direction, and then the anti-reverse pin is removed, allowing the metal terminal and inner frame to be pulled out of the connector without the need for auxiliary tools. This design utilizes a transparent inner frame for initial positioning of the metal terminal, then uses the anti-reverse pin to connect the metal terminal and connector, and finally uses the locking ring to shield and protect the anti-reverse pin, thus reducing the difficulty of assembly and disassembly.
[0015] In one embodiment, the connector has a notch at its rear end; the inner skeleton has a protrusion at its rear end that matches the notch. The matching of the notch and the protrusion helps prevent mistakes during assembly and improves assembly efficiency.
[0016] In one embodiment, the connector also includes a clearance hole; the front end of the inner skeleton has a bayonet that is directly opposite the clearance hole; and the locking ring has a snap fastener that engages with the bayonet. By utilizing the bayonet and snap fastener, the locking ring can be engaged with the inner skeleton, ensuring a stable installation of the locking ring on the connector.
[0017] In one embodiment, the buckle has a barb on the outside to facilitate the worker in unlocking the locking ring.
[0018] In one embodiment, the inner wall of the inner frame is provided with a guide block; the metal terminal is provided with a stop piece that is slidably connected to the guide block, and the front end of the stop piece abuts against the inner wall of the front end of the inner frame. The stop piece and the guide block cooperate with each other to prevent mistakes during assembly and improve assembly efficiency.
[0019] In one embodiment, the rear end of the metal terminal is provided with a first riveting ring and a second riveting ring arranged sequentially along the axial direction; both the first and second riveting rings are riveted to the wire, and the diameter of the first riveting ring is smaller than the diameter of the second riveting ring. The two different diameters of the riveting rings allow for riveting different areas of the wire, improving the stability of the connection.
[0020] In one embodiment, the anti-reverse pin has an extension at each end extending to the outside of the terminal channel; the locking ring has a recessed groove on its inner side to accommodate the extension. During assembly, the anti-reverse pin and the extension cooperate with the recessed groove of the locking ring to mutually limit and correct each other, thereby improving the assembly accuracy. Attached Figure Description
[0021] Figure 1 A perspective view of an easily detachable wire harness according to an embodiment of the present invention;
[0022] Figure 2 for Figure 1 A perspective view of the easily detachable wiring harness from another angle;
[0023] Figure 3 for Figure 1 An axial sectional view of the easily detachable wire harness shown.
[0024] Figure 4 for Figure 1 A radial sectional view of the easily detachable wire harness shown.
[0025] Figure 5 for Figure 1 An exploded view of the easily detachable wiring harness shown.
[0026] Figure 6 for Figure 5 A perspective view of the connector in the easily detachable wire harness shown;
[0027] Figure 7 for Figure 6 A stereoscopic view of the connector from another perspective;
[0028] Figure 8 for Figure 5 A perspective view of the inner support in the easily detachable wiring harness shown.
[0029] Figure 9 for Figure 8 A three-dimensional view of the internal support structure from another perspective;
[0030] Figure 10 for Figure 5 A perspective view of the metal terminals in the easily detachable wire harness shown.
[0031] Figure 11 for Figure 5 A perspective view of the locking ring in the easily detachable wiring harness shown.
[0032] Figure 12 for Figure 5 A view showing the combination of metal terminals and wires in an easily detachable wiring harness;
[0033] Figure 13 for Figure 12 A combined view of the metal terminals, wires, and inner support shown;
[0034] Figure 14 for Figure 13 A combined view of the metal terminals, wires, inner support, connectors, and anti-reverse pins shown.
[0035] The meanings of the labels in the attached diagram are as follows:
[0036] 100-Easy-to-disassemble wiring harness;
[0037] 10-Connector, 11-Terminal channel, 111-First through hole, 12-Receiving groove, 13-Allowing hole, 14-Notch;
[0038] 20-Inner skeleton, 21-Grid, 22-Barrel, 23-Protrusion, 24-Guide block;
[0039] 30 - Metal terminal, 31 - Second through hole, 32 - Stop plate;
[0040] 40 - Wire, 41 - First riveting ring, 42 - Second riveting ring;
[0041] 50 - Stop returning the item;
[0042] 60-Locking ring, 61-Allowing groove, 62-Snap fastener, 621-Barb part. Detailed Implementation
[0043] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0044] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0046] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0047] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0048] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0049] like Figures 1 to 14 As shown, it is an easily detachable wire harness 100 according to one embodiment of the present utility model.
[0050] like Figures 1 to 5 As shown, the easily detachable wiring harness 100 includes: a connector 10, an inner frame 20 connecting the connector 10, metal terminals 30 connecting the inner frame 20, wires 40 connecting the metal terminals 30, a locking pin 50 connecting the connector 10, and a locking ring 60 connecting the connector 10. The connector 10 houses the inner frame 20 and the metal terminals 30, with the inner frame 20 serving as the primary carrier for the metal terminals 30. The metal terminals 30 and the wires 40 together form an electrical signal transmission channel. The locking pin 50 and the locking ring 60 cooperate to secure the metal terminals 30 to the connector 10 and the inner frame 20.
[0051] The following text, combined with Figures 1 to 14 Further explanation is provided regarding the aforementioned easily detachable wiring harness 100.
[0052] like Figure 6 and Figure 7 As shown, the front end of the connector 10 is provided with a plurality of terminal channels 11 arranged in an array and along the axial direction. For example, in this embodiment, the connector 10 is provided with four terminal channels 11. The terminal channel 11 is provided with a first through hole 111 arranged radially and the first through hole 111 penetrates through the terminal channel 11. The rear end of the connector 10 is provided with a receiving groove 12 communicating with the terminal channels 11.
[0053] like Figure 8 and Figure 9 As shown, the inner skeleton 20 is a transparent material structure. Figure 3 As shown, the inner skeleton 20 is inserted into the storage slot 12 from the rear end of the connector 10. Figure 9 As shown, the inner frame 20 is provided with an array of distributed grids 21, which are used to accommodate metal terminals 30.
[0054] like Figure 3 and Figure 4 As shown, the metal terminals 30 are threaded one-to-one through the grid 21. Figure 3As shown, the front end of the metal terminal 30 protrudes from the front end of the inner frame 20 and is inserted into the terminal channel 11, and, combined with Figure 3 , Figure 4 ,as well as Figure 10 As shown, the front end of the metal terminal 30 is also provided with a second through hole 31 that coincides with the first through hole 111.
[0055] like Figure 12 As shown, the end of the wire 40 is riveted to the rear end of the metal terminal 30. Further, combined with... Figure 10 and Figure 12 As shown, in this embodiment, the rear end of the metal terminal 30 is provided with a first riveting ring 41 and a second riveting ring 42 arranged sequentially along the axial direction. Both the first riveting ring 41 and the second riveting ring 42 are riveted to the wire 40, and the diameter of the first riveting ring 41 is smaller than the diameter of the second riveting ring 42. The two riveting rings of different diameters can be used to rivet different areas of the wire 40, improving the stability of the connection. For example, in this embodiment, the first riveting ring 41 is riveted to the conductor of the wire 40, while the second riveting ring 42 is riveted to the outer sheath of the wire 40.
[0056] like Figure 4 As shown, the anti-reverse pin 50 is inserted into the second through hole 31.
[0057] like Figures 1 to 4 As shown, the locking ring 60 is sleeved on the front end of the connector 10 and abuts against both ends of the anti-reverse pin 50. (As indicated...) Figure 4 As shown, in this embodiment, the two ends of the anti-reverse pin 50 are respectively provided with an extension portion extending to the outside of the terminal channel 11. The inner side of the locking ring 60 is provided with a relief groove 61 for receiving the extension portion. During assembly, the anti-reverse pin 50 and the extension portion cooperate with the relief groove 61 of the locking ring 60 to mutually limit and correct each other, thereby improving the assembly accuracy.
[0058] Brief description of working principle:
[0059] During assembly, first rivet the rear end of the metal terminal 30 to the end of the wire 40. Then, insert the metal terminal 30 into the mesh 21 of the inner skeleton 20. Since the inner skeleton 20 is made of transparent material, the specific position of each metal terminal 30 can be clearly seen during insertion. Next, insert the inner skeleton 20 into the receiving slot 12 of the connector 10, and insert the front end of the metal terminal 30 into the terminal channel 11 until the first through hole 111 and the second through hole 31 coincide. Then, insert the anti-reverse pin 50 into the second through hole 31, and then axially slide the locking ring 60 onto the front end of the connector 10, so that the inner side of the locking ring 60 abuts against the two ends of the anti-reverse pin 50. During disassembly, pull the locking ring 60 out in the reverse direction, and then pull out the anti-reverse pin 50. The metal terminal 30 and the inner skeleton 20 can then be pulled out of the connector 10 without the need for auxiliary tools.
[0060] It should be noted that, in designing this solution, considering that the connector 10 in some wire harnesses cannot be made of transparent material, this solution uses a combination of connector 10 and transparent inner skeleton 20 to meet the requirement that connector 10 is made of non-transparent material.
[0061] Based on the above working principle, the function of the locking ring 60 is to prevent the anti-reverse pin 50 from dislodging from the second through hole 31 and to protect the anti-reverse pin 50. Therefore, ensuring that the locking ring 60 does not easily shift after assembly is also a crucial design consideration. For example, ... Figure 6 As shown, connector 10 is also provided with a clearance hole 13, correspondingly, as Figure 8 As shown, the front end of the inner frame 20 is provided with a bayonet 22 that is directly opposite the clearance hole 13, and as... Figure 11 As shown, the locking ring 60 is provided with a snap fastener 62 that engages with the snap fastener 22. By utilizing the engagement of the snap fastener 22 and the snap fastener 62, the locking ring 60 can be snapped into the inner frame 20, thus ensuring that the locking ring 60 is stably mounted on the connector 10.
[0062] Furthermore, to make disassembly more convenient, such as Figure 11 As shown, the outer side of the buckle 62 may be provided with a barb 621 to facilitate the operator to unlock the locking ring 60.
[0063] Considering that error-proofing can effectively improve assembly efficiency and reduce product defect rates during manual operations, targeted improvements can be made.
[0064] For example, in this embodiment, such as Figure 7 As shown, the rear end of the connector 10 has a notch 14, as... Figure 1 and Figure 8 As shown, the rear end of the inner frame 20 is provided with a protrusion 23 that matches the notch 14. The matching of the notch 14 and the protrusion 23 can prevent mistaken assembly and improve assembly efficiency. It should be noted that in other embodiments, the notch 14 can also be located at the rear end of the inner frame 20, while the protrusion 23 can be located at the rear end of the connector 10, achieving the same beneficial effect.
[0065] For example, in this embodiment, such as Figure 9 As shown, the inner wall of the inner frame 20 is provided with guide blocks 24, correspondingly, as... Figure 10 As shown, the metal terminal 30 is provided with a stop plate 32 that slides to connect with the guide block 24, and the front end of the stop plate 32 abuts against the inner wall of the front end of the inner frame 20. The stop plate 32 and the guide block 24 cooperate with each other to prevent mistakes during assembly and improve assembly efficiency.
[0066] The aforementioned easily detachable wiring harness 100 uses a transparent inner frame 20 to initially position the metal terminal 30, then connects the metal terminal 30 and the connector 10 together through a backstop pin 50, and finally shields and protects the backstop pin 50 through a locking ring 60, thereby reducing the difficulty of disassembly and assembly.
[0067] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0068] The above embodiments only illustrate preferred implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A detachable wiring harness characterized by comprising: include: A connector; the front end of the connector is provided with multiple terminal channels arranged in an array and along the axial direction; the terminal channels are provided with a first through hole arranged in a radial direction; the first through hole penetrates the terminal channels; the rear end of the connector is provided with a receiving groove communicating with the terminal channels; The inner skeleton of the connector is made of transparent material and is inserted into the storage slot from the rear end of the connector. The inner skeleton has an array of distributed grids. Metal terminals are connected to the inner frame; the metal terminals are inserted one-to-one through the grid; the front end of the metal terminal passes through the front end of the inner frame and is inserted into the terminal channel, and the front end of the metal terminal is also provided with a second through hole that coincides with the first through hole; A wire connecting the metal terminal; the end of the wire is riveted to the rear end of the metal terminal; A locking pin is connected to the connector; the locking pin passes through the second through hole; as well as A locking ring that connects to the connector; The locking ring is sleeved on the front end of the connector and abuts against both ends of the anti-reverse pin.
2. The detachable wiring harness according to claim 1, wherein The connector has a notch at its rear end; the inner skeleton has a protrusion at its rear end that matches the notch.
3. The detachable wiring harness according to claim 1, wherein The connector is also provided with a clearance hole; the front end of the inner skeleton is provided with a bayonet that is directly opposite the clearance hole; the locking ring is provided with a buckle that engages with the bayonet.
4. The easily detachable wiring harness according to claim 3, wherein The buckle has a barb on its outer side.
5. The easily detachable wiring harness according to claim 1, wherein The inner wall of the inner frame is provided with a guide block; the metal terminal is provided with a stop piece that is slidably connected to the guide block, and the front end of the stop piece abuts against the inner wall of the front end of the inner frame.
6. The easily detachable wiring harness according to claim 1, wherein The metal terminal has a first riveting ring and a second riveting ring arranged sequentially along the axial direction at its rear end; both the first riveting ring and the second riveting ring are riveted to the wire, and the diameter of the first riveting ring is smaller than the diameter of the second riveting ring.
7. The easily detachable wire harness according to claim 1, characterized in that, The anti-reverse pin has an extension at both ends that extends to the outside of the terminal channel; the locking ring has a recess groove on its inner side that accommodates the extension.