Anti-loosening headlamp wire harness

Abstract

The utility model relates to an anti-loosening headlamp wire harness. The anti-loosening headlamp wire harness comprises a connector, a metal terminal, a wire, a first supporting block, a second supporting block, a limiting screw and a limiting nut. The first supporting block and the second supporting block are elastic rubber blocks and are attached to the rear end of the connector. A limiting clamping groove is formed in the rear end of the first supporting block. The first supporting block is provided with a first arc-shaped wire groove. And the second supporting block is spliced with the first supporting block. The second supporting block is provided with a limiting clamping block. The second supporting block is provided with a second arc-shaped wire groove. A rod body of the limiting screw sequentially penetrates through the connector, the first supporting block and the second supporting block. The limiting nut is sleeved with a rod body of the limiting screw and extrudes the limiting clamping block. The first supporting block and the second supporting block which can be mutually spliced and have elasticity are arranged at the rear end of the connector, the metal terminals are plugged in the terminal grooves, and the supporting and buffering effects on the wires are achieved, so that the joints of the metal terminals and the wires are not prone to loosening, and the risk of poor electric contact is reduced.

Description

Technical Field

[0001] This utility model relates to the field of wiring harness technology, and in particular to a headlight wiring harness that prevents loosening. Background Technology

[0002] The headlight wiring harness is a crucial component of an automotive electrical system, primarily used to connect the headlights to the vehicle's power supply and control system, ensuring the proper operation of the high beam and low beam headlights. A typical headlight wiring harness has three wires: the high beam live wire, the low beam live wire, and the neutral wire.

[0003] The drawback of traditional headlight wiring harnesses is that during assembly, the metal terminals are placed in the terminal slots of the connector, but the connection between the metal terminals and the wires is usually not covered by the wiring harness wrapping material. This results in the wires at the connection point being unprotected and bending under external force. After long-term use, the connection between the metal terminals and the wires is prone to loosening, leading to poor electrical contact. Utility Model Content

[0004] Based on this, the present invention provides a headlight wiring harness that prevents loosening. A first support block and a second support block that can be spliced ​​together and are elastic are provided at the rear end of the connector. The metal terminals are sealed in the terminal slots and provide support and buffer for the wires, making it less likely for the connection between the metal terminals and the wires to loosen and reducing the risk of poor electrical contact.

[0005] A headlight wiring harness designed to prevent loosening includes:

[0006] Connector; The connector has multiple terminal slots;

[0007] Metal terminals mounted on the connector; the number of metal terminals is multiple and they are housed one-to-one in the terminal slots;

[0008] Wires connecting to metal terminals; there are multiple wires, each corresponding to a metal terminal; one end of the wire is connected to a metal terminal, and the other end of the wire extends to the outside of the terminal slot;

[0009] A first support block for connecting the connector; the first support block is an elastic rubber block and is attached to the rear end of the connector; a limiting groove is provided at the rear end of the first support block; a first arc-shaped wire groove for attaching the wire is provided on the outer side of the first support block;

[0010] A second support block for connecting the connector; the second support block is an elastic rubber block and is attached to the rear end of the connector after being spliced ​​with the first support block; the second support block is provided with a limiting block with a mating limiting slot; the inner side of the second support block is provided with a second arc-shaped wire groove for fitting the wire, and the second arc-shaped wire groove and the first arc-shaped wire groove are spliced ​​together to form a circular wire groove.

[0011] A limiting screw for connecting the connector; the shank of the limiting screw passes sequentially through the connector, the first support block, and the second support block from the front end of the connector; and

[0012] A limit nut that connects to the limit screw; the limit nut is fitted onto the end of the limit screw rod and presses against the limit block.

[0013] During assembly of the aforementioned anti-loosening headlight wiring harness, after the metal terminals are connected to the wires, the metal terminals are inserted into the terminal slots from the rear end of the connector. Next, the first support block is attached to the rear end of the connector, ensuring the first arc-shaped wire groove aligns with the outer periphery of the wire. Then, the second support block is attached to the rear end of the connector and interlocks with the first support block, aligning the limiting block with the limiting slot. At this point, the metal terminals are sealed within the terminal slots, preventing them from coming out. Simultaneously, the outer periphery of the wire is completely surrounded by the first and second arc-shaped wire grooves, forming a protective structure with support and cushioning functions using the elastic first and second support blocks. Finally, the connector, first support block, and second support block are clamped and secured using limiting screws and nuts. This design, with interlocking and elastic first and second support blocks at the rear end of the connector, seals the metal terminals within the terminal slots and provides support and cushioning for the wires, making the connection between the metal terminals and the wires less prone to loosening and reducing the risk of poor electrical contact.

[0014] In one embodiment, the connector has a raised rim at its rear end; each terminal slot is located within the rim; the front end of the first support block has a first sealing groove that mates with the rim, and the front end of the second support block has a second sealing groove that mates with the rim. The rim, the first sealing groove, and the second sealing groove can form a sealing structure at the connection between the connector and the first and second support blocks, preventing external liquids from entering the terminal slots from the connection.

[0015] In one embodiment, both the first support block and the second support block are silicone blocks. Silicone blocks have good electrical insulation properties, are resistant to high and low temperatures, are wear-resistant and corrosion-resistant, provide good protection for the conductors, and have a long service life.

[0016] In one embodiment, the limiting groove is an arrow-shaped groove facing inward; the limiting block is an arrow-shaped protrusion facing inward. The arrow-shaped groove and the arrow-shaped protrusion cooperate with each other to provide lateral limiting after the first support block and the second support block are joined together.

[0017] In one embodiment, the depth of the limiting groove is 1 / 3 to 1 / 2 of the thickness of the first support block, so as to avoid damaging the structural stability of the first support block due to excessive depth of the limiting groove.

[0018] In one embodiment, the limiting screw is an insulated plastic screw, and the limiting nut is an insulated plastic nut. The limiting screw and nut, made of insulated plastic, not only serve a limiting function but also ensure electrical insulation performance.

[0019] In one embodiment, the outer periphery of the limiting nut is provided with multiple radially extending flaps. The flaps facilitate the operator in rotating the limiting nut, reducing the difficulty of operation, and at the same time, they can increase the compression range of the limiting nut on the limiting block.

[0020] In one embodiment, the shank of the limiting screw is arranged along the axis of the connector, which makes the distribution of the components more balanced and helps to improve the stability of the product structure. Attached Figure Description

[0021] Figure 1 A perspective view of an anti-loosening headlight wiring harness according to an embodiment of the present invention;

[0022] Figure 2 for Figure 1 A perspective view of the anti-loosening headlight wiring harness from another angle;

[0023] Figure 3 for Figure 1 The top view of the anti-loosening headlight wiring harness shown;

[0024] Figure 4 for Figure 3 A cross-sectional view (AA) of the anti-loosening headlight wiring harness shown;

[0025] Figure 5 for Figure 1 An exploded view of the anti-loosening headlight wiring harness shown;

[0026] Figure 6 for Figure 5 A perspective view of the connector in the anti-loosening headlight wiring harness shown;

[0027] Figure 7 for Figure 6 A stereoscopic view of the connector shown from another perspective;

[0028] Figure 8 for Figure 5 A perspective view of the metal terminals in the anti-loosening headlight wiring harness shown;

[0029] Figure 9 for Figure 5 A perspective view of the first support block in the anti-loosening headlight harness shown;

[0030] Figure 10 for Figure 9A perspective view of the first support block from another angle;

[0031] Figure 11 for Figure 5 A perspective view of the second support block in the anti-loosening headlight wiring harness shown;

[0032] Figure 12 for Figure 11 A perspective view of the second support block shown from another angle;

[0033] Figure 13 for Figure 5 A perspective view of the limiting screw in the anti-loosening headlight wiring harness shown;

[0034] Figure 14 for Figure 6 A perspective view of the retaining nut in the anti-loosening headlight wiring harness shown;

[0035] Figure 15 for Figure 1 The diagram shows the assembly process for the anti-loosening headlight wiring harness. Figure 1 ;

[0036] Figure 16 for Figure 15 The diagram shows the assembly process for the anti-loosening headlight wiring harness. Figure 2 ;

[0037] Figure 17 for Figure 16 The diagram shows the assembly process for the anti-loosening headlight wiring harness. Figure 3 ;

[0038] Figure 18 for Figure 17 The diagram shows the assembly process for the anti-loosening headlight wiring harness. Figure 4 ;

[0039] Figure 19 for Figure 18 The diagram shows the assembly process for the anti-loosening headlight wiring harness. Figure 5 .

[0040] The meanings of the labels in the attached diagram are as follows:

[0041] 100-Anti-loosening headlight wiring harness;

[0042] 10-Connector, 11-Terminal slot, 12-Edge;

[0043] 20 - Metal terminal, 21 - Storage part, 22 - Connector part;

[0044] 30 - Conductor;

[0045] 40-First support block, 41-Limiting groove, 42-First arc-shaped groove, 43-First sealing groove;

[0046] 50 - Second support block, 51 - Limiting block, 52 - Second arc-shaped groove, 53 - Second sealing groove;

[0047] 60-Limit screw;

[0048] 70 - Limit nut, 71 - Blade. Detailed Implementation

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] like Figures 1 to 19 As shown, it is an anti-loosening headlight wiring harness 100 of one embodiment of the present invention.

[0056] like Figures 1 to 5 As shown, the anti-loosening headlight wiring harness 100 includes: a connector 10, a metal terminal 20 mounted on the connector 10, a wire 30 connecting the metal terminal 20, a first support block 40 connecting the connector 10, a second support block 50 connecting the connector 10, a limiting screw 60 connecting the connector 10, and a limiting nut 70 connecting the limiting screw 60. The connector 10 serves as an insulating carrier for mounting the metal terminal 20. The metal terminal 20 and the wire 30 constitute an electrical signal transmission channel. The first support block 40 and the second support block 50 are used to confine the metal terminal 20 within the connector 10 and also provide wrapping protection for the outer periphery of the wire 30. The limiting screw 60 and the limiting nut 70 secure the connector 10, the first support block 40, and the second support block 50 together.

[0057] The following text, combined with Figures 1 to 19 Further explanation is provided regarding the aforementioned anti-loosening headlight wiring harness 100.

[0058] like Figure 6 and Figure 7 As shown, the connector 10 is provided with a plurality of terminal slots 11. For example, in this embodiment, the number of terminal slots 11 is three and they are distributed around the axis of the connector 10.

[0059] Combination Figure 4 , Figure 5 ,as well as Figure 15 As shown, there are multiple metal terminals 20, each corresponding to the other, housed within the terminal slots 11. For example, as... Figure 8 As shown, in this embodiment, there are three metal terminals 20. Each metal terminal 20 includes a cylindrical receiving portion 21 and a U-shaped connector portion 22. The receiving portion 21 is used to connect to the end of the wire 30. The connector portion 22 is used to make an electrical connection with the terminal of the headlight.

[0060] Combination Figure 5 and Figure 15 As shown, there are multiple wires 30, each corresponding to a metal terminal 20. One end of each wire 30 is connected to a metal terminal 20, and the other end extends to the outside of the terminal slot 11. For example, in this embodiment, there are three wires 30.

[0061] like Figure 1 As shown, the first support block 40 is an elastic rubber block and is attached to the rear end of the connector 10. Figure 9 As shown, the rear end of the first support block 40 is provided with a limiting slot 41. Combined with... Figure 9 and Figure 15 As shown, the outer side of the first support block 40 is provided with a first arc-shaped groove 42 that fits the conductor 30. The first arc-shaped groove 42 can form a partial wrapping protection for the outer periphery of the conductor 30.

[0062] Since the opening of the limiting slot 41 reduces the structural stability of the first support block 40, it is necessary to limit the depth of the limiting slot 41. For example, in this embodiment, the depth of the limiting slot 41 is 1 / 3 to 1 / 2 of the thickness of the first support block 40, so as to avoid damaging the structural stability of the first support block 40 due to the excessive depth of the limiting slot 41.

[0063] like Figure 1 As shown, the second support block 50 is an elastic rubber block and is attached to the rear end of the connector 10 after being spliced ​​with the first support block 40. (Combined) Figure 11 and Figure 17As shown, the second support block 50 is provided with a limiting block 51 for docking and limiting the slot 41. The inner side of the second support block 50 is provided with a second arc-shaped groove 52 that conforms to the conductor 30, and the second arc-shaped groove 52 and the first arc-shaped groove 42 are joined to form a circular groove. The second arc-shaped groove 52 can provide partial wrapping protection for the outer periphery of the conductor 30. Figure 17 As shown, after the first support block 40 and the second support block 50 are spliced ​​together, the circular groove formed by splicing the first arc-shaped groove 42 and the second arc-shaped groove 52 becomes the wiring hole that wraps around the outer periphery of the conductor 30.

[0064] Furthermore, in this embodiment, as Figure 9 As shown, the limiting groove 41 is an arrow-shaped groove facing inward, correspondingly, as Figure 11 As shown, the limiting block 51 is an arrow-shaped protrusion facing inward. The arrow-shaped groove and the arrow-shaped protrusion cooperate with each other to provide lateral limiting after the first support block 40 and the second support block 50 are spliced. During assembly, the first support block 40 and the second support block 50 are placed in a staggered manner, and then gradually moved to the same plane so that the limiting groove 41 and the limiting protrusion 51 are properly aligned.

[0065] Preferably, in this embodiment, both the first support block 40 and the second support block 50 are silicone blocks. Silicone blocks have good electrical insulation properties, are resistant to high and low temperatures, are wear-resistant and corrosion-resistant, provide good protection for the conductor 30, and have a long service life.

[0066] To enhance the sealing at the connection between connector 10 and the first support block 40 and the second support block 50, in this embodiment, as follows: Figure 7 As shown, the rear end of the connector 10 has a raised perimeter 12, and each terminal slot 11 is located within the perimeter 12. Figure 10 As shown, the front end of the first support block 40 is provided with a first sealing groove 43 for mating with the surrounding edge 12. (As indicated...) Figure 12 As shown, the front end of the second support block 50 is provided with a second sealing groove 53 that abuts against the surrounding edge 12. (As indicated...) Figure 4 As shown, the perimeter 12, the first sealing groove 43, and the second sealing groove 53 can form a sealing structure at the connection between the connector 10 and the first support block 40 and the second support block 50, preventing external liquid from entering the terminal groove 11 from the connection.

[0067] Combination Figure 4 , Figure 10 ,as well as Figure 18As shown, the rod of the limiting screw 60 passes sequentially through the connector 10, the first support block 40, and the second support block 50 from the front end of the connector 10. Furthermore, in this embodiment, the rod of the limiting screw 60 is arranged along the axis of the connector 10, which allows for a more balanced distribution of the components and improves the stability of the product structure.

[0068] Combination Figure 4 and Figure 19 As shown, the limiting nut 70 is sleeved on the end of the rod of the limiting screw 60 and presses against the limiting block 51.

[0069] For ease of operation, combined with Figure 14 and Figure 19 As shown, in this embodiment, the outer periphery of the limiting nut 70 is provided with a plurality of radially extending winglets 71. The winglets 71 facilitate the operator to rotate the limiting nut 70, reducing the difficulty of operation, and at the same time, can increase the compression range of the limiting nut 70 on the limiting block 51.

[0070] Preferably, in this embodiment, the limiting screw 60 is an insulated plastic screw, and the limiting nut 70 is an insulated plastic nut. The limiting screw 60 and limiting nut 70, made of insulated plastic, not only serve a limiting function but also ensure electrical insulation performance.

[0071] Brief description of working principle:

[0072] like Figure 15 As shown, during assembly, after the metal terminal 20 is connected to the wire 30, the metal terminal 20 is inserted into the terminal slot 11 from the rear end of the connector 10. At this time, one end of the wire 30 extends to the outside of the terminal slot 11 (and is located behind the connector 10).

[0073] like Figure 16 As shown, the first support block 40 is then attached to the rear end of the connector 10, and the first arc-shaped groove 42 is attached to the outer periphery of the wire 30.

[0074] like Figure 17 As shown, the second support block 50 is then attached to the rear end of the connector 10 and spliced ​​with the first support block 40, so that the limiting block 51 aligns with the limiting slot 41. The first support block 50 and the second support block 50 are then spliced ​​together and interlocked, forming a lateral positioning structure. At this time, the metal terminal 20 is sealed within the terminal slot 11, preventing the metal terminal 20 from coming out. Simultaneously, the outer periphery of the wire 30 is just surrounded by the first arc-shaped wire slot 42 and the second arc-shaped wire slot 52. The elastic first support block 40 and the second support block 50 form a protective structure for the wire 30, providing support and buffering, so that the wire 30 at the connection between the metal terminal 20 and the wire 30 will not be bent under external force.

[0075] like Figure 18 and Figure 19 As shown, finally, the connector 10, the first support block 40, and the second support block 50 are clamped and fixed by the cooperation of the limiting screw 60 and the limiting nut 70, so that the three are locked and positioned in the axial direction.

[0076] The aforementioned anti-loosening headlight harness 100 has a first support block 40 and a second support block 50 that can be spliced ​​together and are elastic at the rear end of the connector 10. These blocks the metal terminal 20 in the terminal slot 11 and provide support and buffer for the wire 30, making it less likely for the connection between the metal terminal 20 and the wire 30 to loosen, thus reducing the risk of poor electrical contact.

[0077] 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.

[0078] 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. An anti-loose headlamp wire harness characterized by comprising: include: Connector; the connector is provided with multiple terminal slots; Metal terminals mounted on the connector; The number of metal terminals is multiple, and they are housed one-to-one in the terminal slots; The wire connecting the metal terminal; The number of wires is multiple and they are connected one-to-one to the metal terminals; one end of each wire is connected to the metal terminal and the other end of each wire extends to the outside of the terminal slot. A first support block is connected to the connector; the first support block is an elastic rubber block and is attached to the rear end of the connector; a limiting groove is provided at the rear end of the first support block; a first arc-shaped groove for fitting the wire is provided on the outer side of the first support block. A second support block is connected to the connector; the second support block is an elastic rubber block and is attached to the rear end of the connector after being spliced ​​with the first support block; the second support block is provided with a limiting block that mates with the limiting slot; the inner side of the second support block is provided with a second arc-shaped wire groove that fits the wire, and the second arc-shaped wire groove and the first arc-shaped wire groove are spliced ​​together to form a circular wire groove; A limiting screw connecting the connector; the shank of the limiting screw passes sequentially through the connector, the first support block, and the second support block from the front end of the connector; and A limiting nut is connected to the limiting screw; the limiting nut is sleeved on the end of the rod of the limiting screw and presses against the limiting block.

2. The anti-looseness headlamp wire harness according to claim 1, characterized by The connector has a raised rim at its rear end; each terminal slot is located within the rim; the front end of the first support block has a first sealing groove that engages with the rim, and the front end of the second support block has a second sealing groove that engages with the rim.

3. The anti-loose headlamp harness of claim 1, wherein, Both the first support block and the second support block are silicone blocks.

4. The anti-loose headlamp harness of claim 1, wherein, The limiting groove is an arrow-shaped groove facing inward; the limiting block is an arrow-shaped protrusion facing inward.

5. The anti-rattle headlamp harness of claim 1, wherein, The depth of the limiting slot is 1 / 3 to 1 / 2 of the thickness of the first support block.

6. The anti-rattle headlamp harness of claim 1, wherein, The limiting screw is an insulated plastic screw, and the limiting nut is an insulated plastic nut.

7. The anti-loose headlamp harness of claim 1, wherein, The outer periphery of the limiting nut is provided with multiple radially extending fins.

8. The anti-rattle headlamp harness of claim 1, wherein, The shank of the limiting screw is arranged along the axis of the connector.

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