Wire harness structure
By using a detachable anti-reverse component structure in the wire harness structure, the problems of easy fatigue and difficult disassembly of metal terminals in traditional wire harnesses are solved, achieving the effects of stable connection and simplified disassembly and maintenance.
Patent Information
- Application Number
- CN202520332594.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-02-27
AI Technical Summary
In traditional wire harness designs, metal terminals are prone to unstable installation due to spring fatigue, making disassembly and maintenance difficult.
It adopts a detachable anti-reverse component structure, which uses anti-reverse plates and clips to fix metal terminals, eliminating the need for spring-loaded anti-reverse mechanisms, improving installation stability and reducing the difficulty of disassembly and maintenance.
It achieves a stable connection of metal terminals, simplifies the disassembly and maintenance process, requires no auxiliary tools, and improves assembly efficiency and connection stability.
Smart Images
Figure CN223978166U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wire harness design technology, and in particular to a wire harness structure. Background Technology
[0002] A wire harness is a collection of multiple data lines used for the transmission of electrical signals between multiple electronic components or devices. Because a wire harness consists of multiple data lines, its connector has multiple metal terminals that connect one-to-one with each data line. These metal terminals are distributed in an array on the connector.
[0003] In traditional wire harness designs, after the metal terminal is crimped to the wire, the metal terminal needs to be inserted axially into the connector from the tail end. The metal terminal is then secured to the connector using a spring clip forming a barb structure to prevent it from being pulled out (i.e., the metal terminal will not be pulled out when the wire is pulled backward). This traditional anti-reverse design is prone to metal fatigue and breakage of the spring clips after prolonged use, resulting in weak installation stability. Furthermore, when the metal terminals of the wire harness need to be disassembled for maintenance, specialized auxiliary tools (pointed pins inserted from the head of the connector to compress the spring clips and unlock the metal terminal) are required, making maintenance difficult. Utility Model Content
[0004] Based on this, the present invention provides a wire harness structure that abandons the traditional spring-type anti-retraction structure and uses a detachable anti-retraction component to realize the anti-retraction function of the metal terminals on the connector, thereby improving the installation stability of the metal terminals and reducing the difficulty of disassembling and maintaining the metal terminals.
[0005] A wire harness structure, comprising:
[0006] The connector is provided with terminal slots arranged axially; the number of terminal slots is multiple and distributed in an array; the inner wall of each terminal slot is provided with a first step; the connector is provided with multiple anti-reverse slots perpendicular to the terminal slots; one end of each anti-reverse slot passes through the top of the connector, and the other end extends to the bottom of the connector to form a blind groove structure; each terminal slot is provided with two anti-reverse slots; the top of the connector is also provided with a first latch.
[0007] Metal terminals are inserted into the connector; there are multiple metal terminals, each corresponding to the other in the terminal slot; each metal terminal includes: a plug section, a stop section, and a riveting section connected in sequence; both sides of the stop section are provided with axially extending flaps; the front end of the flaps abuts against the first step; the riveting section is provided with a first riveting ring;
[0008] Wires connecting the metal terminals; multiple wires, each corresponding to a first riveting ring; and
[0009] A retaining element is inserted into the connector; the retaining element includes: a base plate that snaps into the first buckle and a retaining plate connected to the base plate; there are multiple retaining plates, which are inserted into the retaining slots one by one; the front end of the retaining plate abuts against the rear end of the wing, and the rear end of the retaining plate abuts against the front end of the first rivet ring.
[0010] In the above-described wiring harness structure, during assembly, the metal terminals are first riveted to the wires, and then the metal terminals are axially inserted into the terminal slots of the connector until the front end of the metal terminal's flap abuts against the first step of the terminal slot. Next, a retaining device is inserted from the top of the connector into the retaining slot, so that the retaining plate of the retaining device is clamped between the rear end of the terminal flap and the front end of the first riveting ring. Furthermore, the base plate of the retaining device is secured to the top of the connector by a first snap-fit, thus completing the locking of the metal terminal. When the metal terminal needs to be disassembled for maintenance, simply unlock the base plate of the retaining device and then pull out the retaining device to remove the metal terminal backward, without the need for auxiliary tools. This design eliminates the traditional spring-loaded retaining structure, utilizing a detachable retaining device to achieve the retaining function of the metal terminal on the connector, improving the installation stability of the metal terminal and reducing the difficulty of disassembling and maintaining it.
[0011] In one embodiment, there are two first latches distributed axially at both ends of the top of the connector; the substrate has two second latches corresponding to the first latches. By using the first latches distributed at both ends of the connector to engage with the substrate, two symmetrical and balanced holding forces can be provided to the substrate, improving the connection stability between the latching components and the connector.
[0012] In one embodiment, the bottom of the second latch has a second step. The second step can form a cutout at the bottom of the second latch, making it easy for an operator to insert their fingertips to remove the retaining element from the connector.
[0013] In one embodiment, each side of the stop section is provided with multiple parallel fins; the fins on both sides of the stop section are arranged symmetrically. The use of multiple fins on each side of the stop section can distribute the load force among multiple fins, making the fins less prone to deformation or breakage, thereby improving the deformation resistance of the metal terminal.
[0014] In one embodiment, the riveting section further includes a second riveting ring for riveting the wire; the width of the second riveting ring is smaller than that of the first riveting ring, and both sides of the second riveting ring abut against the inner surfaces of two anti-reverse plates located in the same anti-reverse slot; the second riveting ring rivets the conductor of the wire, and the first riveting ring rivets the outer sheath of the wire. The first and second riveting rings rivet different areas of the wire respectively, which can improve the connection stability between the metal terminal and the wire. Simultaneously, the second riveting ring can exert a compressive force on the inner side of the anti-reverse plate, improving the connection stability between the anti-reverse component and the metal terminal and connector.
[0015] In one embodiment, the connector section has protruding curved surfaces on both sides; the inner wall of the terminal slot has a groove for receiving the curved surfaces. When the metal terminal is inserted into the terminal slot, the interlocking of the curved surfaces and the grooves can achieve initial positioning of the metal terminal, preventing the metal terminal from becoming loose before the anti-retraction device is inserted.
[0016] In one embodiment, a marking arrow is provided on the top of the substrate; the marking arrow points in the same direction as the metal terminals. The marking arrow helps operators quickly identify the correct orientation of the substrate, improving assembly efficiency. Attached Figure Description
[0017] Figure 1 This is a perspective view of a wire harness structure according to an embodiment of the present invention;
[0018] Figure 2 for Figure 1 A three-dimensional view of the wire harness structure shown from another perspective;
[0019] Figure 3 for Figure 1 An axial sectional view of the wire harness structure shown.
[0020] Figure 4 for Figure 1 A radial cross-sectional view of the wire harness structure shown.
[0021] Figure 5 for Figure 1 An exploded view of the wire harness structure shown;
[0022] Figure 6 for Figure 5 A perspective view of the connector in the wire harness structure shown;
[0023] Figure 7 for Figure 6 A stereoscopic view of the connector shown from another perspective;
[0024] Figure 8 for Figure 6 A radial sectional view of the connector shown;
[0025] Figure 9 for Figure 5 A perspective view of the terminals in the wire harness structure shown;
[0026] Figure 10 for Figure 9 A perspective view of the terminal shown from another angle;
[0027] Figure 11 for Figure 5 A combined view of terminals and wires in the wire harness structure shown;
[0028] Figure 12 for Figure 5 A perspective view of the anti-reverse component in the wire harness structure shown;
[0029] Figure 13 for Figure 12 A perspective view of the anti-reverse component from another angle.
[0030] The meanings of the labels in the attached diagram are as follows:
[0031] 100-Wire harness structure;
[0032] 10-Connector, 11-Terminal slot, 111-First step, 12-Anti-reverse slot, 13-First latch;
[0033] 20-Metal terminal, 21-Connecting section, 22-Stop section, 221-Wing plate, 23-Riveting section, 231-First rivet ring, 232-Second rivet ring;
[0034] 30 - Conductor;
[0035] 40 - Anti-reverse component, 41 - Base plate, 411 - Second buckle, 4111 - Second step, 412 - Identification arrow, 42 - Anti-reverse plate. Detailed Implementation
[0036] 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.
[0037] 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.
[0038] 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.
[0039] 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.
[0040] 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.
[0041] 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.
[0042] like Figures 1 to 13 As shown, it is a wire harness structure 100 of one embodiment of the present utility model.
[0043] like Figures 1 to 5 As shown, the wiring harness structure 100 includes: a connector 10, a metal terminal 20 passing through the connector 10, a wire 30 connecting the metal terminal 20, and a retaining member 40 passing through the connector 10. The connector 10 is used to accommodate the metal terminal 20. The metal terminal 20 and the wire 30 together form an electrical signal transmission channel. The retaining member 40 is used to lock the metal terminal 20 onto the connector 10.
[0044] The following text, combined with Figures 1 to 13 The above-mentioned wire harness structure 100 will be further explained.
[0045] like Figure 6 As shown, the connector 10 has terminal slots 11 arranged axially, and the number of terminal slots 11 is multiple and they are distributed in an array. Figure 3 and Figure 8 As shown, each terminal slot 11 has a first stepped portion 111 on its inner wall. Figure 7 As shown, connector 10 is provided with a plurality of anti-reverse slots 12 perpendicular to terminal slots 11. As... Figure 8 As shown, one end of each anti-reverse slot 12 passes through the top of the connector 10, and the other end extends to the bottom of the connector 10 to form a blind slot structure. Figure 7 As shown, each terminal slot 11 is provided with two anti-reverse slots 12. For example... Figure 6 As shown, the connector 10 also has a first snap 13 on its top.
[0046] like Figure 4 and Figure 5 As shown, there are multiple metal terminals 20, each corresponding to one another, inserted into the terminal slot 11. Figure 9 and Figure 10 As shown, each metal terminal 20 includes a connector section 21, a stop section 22, and a riveting section 23 connected in sequence. The stop section 22 has axially extending flaps 221 on both sides, with the front ends of the flaps 221 abutting against the first stepped portion 111. The riveting section 23 has a first riveting ring 231.
[0047] like Figure 3 and Figure 11 As shown, there are multiple wires 30, each corresponding to a riveting ring 231.
[0048] like Figure 1 and Figure 12 As shown, the anti-reverse component 40 includes: a base plate 41 that engages with the first latch 13 and an anti-reverse plate 42 connected to the base plate 41. For example... Figure 4 and Figure 13 As shown, there are multiple anti-reverse plates 42, each inserted into a corresponding anti-reverse slot 12. Figure 3 As shown, the front end of the anti-reverse plate 42 abuts against the rear end of the winglet 221, and the rear end of the anti-reverse plate 42 abuts against the front end of the first rivet ring 231. Meanwhile, as... Figure 4 As shown, the top end of the anti-reverse plate 42 is connected to the substrate 41 and is restricted by the top end (i.e., the inlet end) of the anti-reverse slot 12, while the bottom end of the anti-reverse plate 42 is restricted by the blind groove structure at the bottom end of the anti-reverse slot 12.
[0049] To improve the locking stability between the anti-reverse component 40 and the connector 10, combined with Figure 1 , Figure 6 ,as well as Figure 12 As shown, in this embodiment, there are two first latches 13, which are distributed axially at both ends of the top of the connector 10. The substrate 41 is provided with two second latches 411 that correspond one-to-one with the first latches 13. By using the first latches 13 distributed at both ends of the connector 10 to engage with the substrate 41, two symmetrical and balanced holding forces can be provided to the substrate 41, improving the connection stability between the latching member and the connector 10.
[0050] Furthermore, to facilitate disassembly, combined with Figure 1 , Figure 12 ,as well as Figure 13 As shown, in this embodiment, the bottom of the second buckle 411 is provided with a second step portion 4111. The second step portion 4111 can form a hollow area at the bottom of the second buckle 411, which facilitates the insertion of the operator's fingertip to remove the anti-retraction member 40 from the connector 10.
[0051] In addition, such as Figure 10 and Figure 11As shown, in this embodiment, the riveting section 23 is further provided with a second riveting ring 232 for riveting the wire 30. The width of the second riveting ring 232 is smaller than that of the first riveting ring 231, and the two sides of the second riveting ring 232 respectively abut against the inner sides of the two anti-retraction plates 42 located in the same anti-retraction slot 12. The second riveting ring 232 rivets the conductor of the wire 30, and the first riveting ring 231 rivets the outer sheath of the wire 30 (i.e., the insulating layer wrapped around the conductor). The first riveting ring 231 and the second riveting ring 232 rivet different areas of the wire 30 respectively, which can improve the connection stability between the metal terminal 20 and the wire 30. At the same time, the second riveting ring 232 can form a squeezing force on the inner side of the anti-retraction plate 42, improving the connection stability between the anti-retraction member 40 and the metal terminal 20 and the connector 10.
[0052] Brief description of working principle:
[0053] like Figure 3 and Figure 4 As shown, during assembly, the metal terminal 20 is first riveted to the wire 30, and then the metal terminal 20 is inserted axially into the terminal slot 11 of the connector 10 until the front end of the wing 221 of the metal terminal 20 abuts against the first step 111 of the terminal slot 11. Next, the retaining member 40 is inserted from the top of the connector 10 into the retaining slot 12, so that the retaining plate 42 of the retaining member 40 is clamped between the rear end of the wing 221 of the terminal and the front end of the first riveting ring 231 (at the same time, the wing 221 is also clamped between the first step 111 and the retaining plate 42), and the base plate 41 of the retaining member 40 is snapped and fixed to the top of the connector 10 by the first latch 13, thereby completing the locking of the metal terminal 20. When it is necessary to disassemble and repair the metal terminal 20, it is only necessary to unlock the base plate 41 of the retaining member 40 and then pull out the retaining member 40 to pull the metal terminal 20 out backward without the need for auxiliary tools.
[0054] Based on the above principles, in order to improve the deformation resistance of the fin 221 of the stop section 22, without changing the material of the metal terminal 20, such as... Figure 10 As shown, each side of the stop section 22 is provided with multiple parallel fins 221, and the fins 221 on both sides of the stop section 22 are arranged symmetrically. The design of multiple fins 221 on each side of the stop section 22 can distribute the load force by using multiple fins 221, making the fins 221 less prone to deformation or breakage, thereby improving the deformation resistance of the metal terminal 20.
[0055] In addition, to reduce the difficulty of assembling the metal terminal 20 into the connector 10, the following improvements can be made:
[0056] For example, in some embodiments, the two sides of the connector segment 21 are also provided with outwardly convex curved surfaces, and correspondingly, the inner wall of the terminal slot 11 is provided with a groove to receive the curved surfaces. When the metal terminal 20 is inserted into the terminal slot 11, the mutual engagement of the curved surfaces and the grooves can achieve the initial positioning of the metal terminal 20, preventing the metal terminal 20 from coming loose before the stop member 40 is inserted (equivalent to a structure that can provide a small holding force, which can play an initial positioning role when the metal terminal 20 is inserted into the terminal slot 11, so that each metal terminal 20 is kept in the accurate position when the stop member 40 is subsequently inserted).
[0057] For example, such as Figure 1 and Figure 12 As shown, in this embodiment, a marking arrow 412 is provided on the top of the substrate 41. The orientation of the marking arrow 412 is consistent with the orientation of the metal terminal 20. The marking arrow 412 facilitates the operator to quickly identify the correct orientation of the substrate 41, playing a role in preventing mistakes and improving assembly efficiency.
[0058] The above-mentioned wire harness structure 100 abandons the traditional spring-type anti-retraction structure and uses a detachable anti-retraction component 40 to realize the anti-retraction function of the metal terminal 20 on the connector 10, thereby improving the installation stability of the metal terminal 20 and reducing the difficulty of disassembling and maintaining the metal terminal 20.
[0059] 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.
[0060] 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 wiring harness structure characterized by, The utility model relates to a connector, a metal terminal, a wire and a stopper, and belongs to the field of connector manufacturing. The connector comprises a connector; the connector is provided with terminal slots arranged in the axial direction; the number of the terminal slots is multiple and the terminal slots are arranged in an array; the inner wall of each terminal slot is provided with a first step portion; the connector is provided with multiple stop slots perpendicular to the terminal slots; one end of each stop slot penetrates through the top of the connector, and the other end extends to the bottom of the connector to form a blind slot structure; two stop slots are arranged in the connector corresponding to each terminal slot; the top of the connector is further provided with a first buckle; The metal terminal comprises a plug-in section, a stop section and a riveting section connected in sequence; the two sides of the stop section are provided with wings extending in the axial direction; the front end of the wing abuts against the first step portion; the riveting section is provided with a first riveting ring; The wire is connected to the metal terminal; the number of the wire is multiple and the wire is riveted to the first riveting ring one by one; and The stopper comprises a base plate clamped to the first buckle and a stop plate connected to the base plate; the number of the stop plate is multiple and the stop plate is inserted into the stop slot one by one; the front end of the stop plate abuts against the rear end of the wing, and the rear end of the stop plate abuts against the front end of the first riveting ring.
2. The wire harness structure according to claim 1, characterized by The number of the first buckle is two and the first buckle is arranged at the two ends of the top of the connector in the axial direction; the base plate is provided with two second buckles corresponding to the first buckles one by one.
3. The wire harness structure according to claim 2, characterized by The bottom of the second buckle is provided with a second step portion.
4. The wire harness structure according to claim 1, characterized by Each side of the stop section is provided with multiple wings parallel to each other; the wings on the two sides of the stop section are arranged in a left-right symmetrical manner.
5. The wire harness structure according to claim 1, characterized by The riveting section is further provided with a second riveting ring for riveting the wire; the width of the second riveting ring is smaller than that of the first riveting ring, and the two sides of the second riveting ring abut against the inner side surfaces of two stop plates in the same stop slot; the second riveting ring is used for riveting the conductor of the wire, and the first riveting ring is used for riveting the outer sheath of the wire.
6. The wire harness structure according to claim 1, characterized by The two sides of the plug-in section are further provided with convex curved portions; the inner wall of the terminal slot is provided with a groove for accommodating the curved portion.
7. The wire harness structure according to claim 1, characterized by The top of the base plate is provided with an identification arrow; the direction of the identification arrow is consistent with the direction of the metal terminal. The utility model relates to a connector, a metal terminal, a wire and a stopper, and belongs to the field of connector manufacturing.