A wiring harness assembly having a waterproof structure

Abstract

The utility model belongs to the technical field of wire harness, specifically is a wire harness assembly with waterproof structure, including wiring terminal, wire harness and waterproof wiring assembly, wiring terminal side is equipped with through -hole, waterproof wiring assembly contains conical sealing cavity, its end has conical split pressure head, bottom has base, base diameter is greater than through -hole and with through -hole interval inner sealing rubber ring, conical sealing cavity is through after through -hole from wiring terminal inside, is fixed through the nut with outer side area outer sealing rubber ring, conical split pressure head is installed conical waterproof bushing, wire harness is worn after conical compression nut through conical sealing cavity and enters wiring terminal, and conical compression nut end angle is less than conical split pressure head angle. The utility model can be adapted to different wire harness by replacing bushing, and waterproof is reliable, adaptability is strong and assembly is convenient, is applicable to humid, wading and other severe environment.

Description

Technical Field

[0001] This utility model belongs to the field of wire harness technology, specifically a wire harness assembly with a waterproof structure. Background Technology

[0002] As components of signal and power transmission, wire harness assemblies are widely used in automobiles, home appliances, outdoor communications, industrial control devices and other fields. Their working environment is often accompanied by harsh conditions such as humidity and water immersion. Therefore, the waterproof performance of the connection between the terminal block and the wire harness is particularly important.

[0003] Most waterproof wiring harness components on the market currently use a single sealing ring at the terminal and the wiring harness to achieve a seal. Some other structures use a snap-fit ​​assembly. The snap-fit ​​connection is prone to loosening due to external impact, equipment vibration, or long-term use. Moisture can easily seep in from the terminal through hole and the outer periphery of the wiring harness, resulting in low waterproof reliability. When it is necessary to replace the wiring harness with a different specification, the entire waterproof component must be replaced.

[0004] To address the aforementioned issues, this application proposes a wire harness assembly with a waterproof structure. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the single sealing structure has low waterproof reliability and poor adaptability to wire harnesses with different outer diameters.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a waterproof wire harness assembly, comprising a terminal block and a wire harness. The terminal block and the wire harness are connected by a waterproof wiring assembly. The terminal block has a through hole on its side. The waterproof wiring assembly includes a conical sealing cavity, a conical split pressure head at one end, and a base at the bottom. The diameter of the base is larger than the diameter of the through hole, and an inner sealing ring is fitted between the base and the through hole. The conical split pressure head has a conical waterproof bushing with a matching diameter inside. The conical sealing cavity passes through the through hole from the cavity of the terminal block. The outer surface of the conical sealing cavity has threads. A nut is used to fix the terminal block on the outside. An outer sealing ring is placed at the bottom of the nut. The conical clamping nut is fitted onto the wire harness. The wire harness passes through the conical sealing cavity and enters the terminal block. The angle at the end of the conical clamping nut is smaller than the angle of the conical split pressure head.

[0008] Furthermore, the tapered split pressure head is located outside the terminal block, and the base is located inside the terminal block.

[0009] Furthermore, the outer surface of the conical waterproof bushing is a conical profile that mates with the inner conical surface of the conical segmented pressure head.

[0010] Furthermore, the conical waterproof bushing has a cylindrical wire passage inside, the diameter of which is adapted to the outer diameter of the wire harness.

[0011] Furthermore, a V-shaped opening is provided on the side of the end of the tapered waterproof bushing along its axial direction.

[0012] This utility model has the following beneficial effects:

[0013] The multiple waterproof structure, consisting of an inner sealing ring, an outer sealing ring, and a tapered waterproof bushing, achieves complete sealing between the gap in the terminal block through hole and the gap on the outer periphery of the wire harness.

[0014] By replacing the tapered waterproof bushings with different wire passage diameters, the entire waterproof wiring harness assembly can be replaced without replacing it, reducing usage and maintenance costs.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional exploded view of the present invention;

[0019] Figure 3 This is a three-dimensional structural diagram of the conical sealing cavity of this utility model;

[0020] Figure 4 This is a left view of the conical waterproof bushing of this utility model;

[0021] The attached diagram lists the components represented by each number as follows:

[0022] In the diagram: 1. Terminal block; 11. Through hole; 2. Wire harness; 21. Rubber sleeve; 3. Conical sealing cavity; 31. Conical split pressure head; 32. Base; 4. Conical clamping nut; 5. Outer sealing ring; 6. Inner sealing ring; 7. Nut; 8. Conical waterproof bushing; 81. Wire passage; 82. V-shaped opening. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements 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.

[0025] Please see Figure 1 As shown, this utility model is a wire harness assembly with a waterproof structure, including a terminal block 1 and a wire harness 2. The terminal block 1 and the wire harness 2 are connected and fixed by the waterproof wiring assembly. The waterproof wiring assembly can effectively prevent moisture from seeping into the terminal block 1 from the connection part, ensuring the stable operation of electrical equipment in harsh environments such as humid and water-related environments.

[0026] like Figures 2 to 3 As shown, a through hole 11 is provided on the side of the terminal 1 for the waterproof wiring assembly to pass through. The waterproof wiring assembly includes a conical sealing cavity 3. The end of the conical sealing cavity 3 has a conical split pressure head 31. The conical sealing cavity 3 extends from the interior of the terminal 1 through the through hole 11 to the outside of the terminal 1 through the conical split pressure head 31 and the surface threads. The bottom of the conical sealing cavity 3 also has a base 32, which is located inside the terminal 1. The diameter of the base 32 is larger than the diameter of the through hole 11. An inner sealing ring 6 is fitted on the conical sealing cavity 3 between the base 32 and the through hole 11. The outer surface of the conical sealing cavity has threads. A nut is used to fix the terminal 1 on the outside. An outer sealing ring 5 is placed at the bottom of the nut 7. After tightening the nut 7, the inner sealing ring 5 is fixed. The outer sealing ring 5 deforms under pressure to seal the gap between the waterproof wiring assembly and the terminal 1, effectively preventing moisture from entering the terminal 1. The conical split pressure head 31 has a matching conical waterproof bushing 8 inside. The conical clamping nut 4 is fitted on the wire harness 2. The wire harness 2 passes through the conical sealing cavity 3 and enters the terminal 1. The end angle of the conical clamping nut 4 is smaller than that of the conical split pressure head 31. When the conical clamping nut 4 is tightened, the inner wall of the conical clamping nut 4 squeezes the conical split pressure head 31. The split pressure head 31 deforms and compresses the conical waterproof bushing 8, which is tightly fitted and pressed against the rubber sleeve 21 of the wire harness 2. The conical waterproof bushing 8 is compressed and deformed and tightly fitted with the rubber sleeve 21, which prevents moisture from entering the terminal 1 from the connection between the wire harness 2 and the waterproof wiring assembly.

[0027] like Figure 4 As shown, the outer surface of the conical waterproof bushing 8 is a conical profile that matches the inner conical surface of the conical split pressure head 31. The inner surface has a cylindrical wire passage 81, the diameter of which is adapted to the outer diameter of the wire harness 2. For wire harnesses 2 with different outer diameter specifications, a conical waterproof bushing 8 with a corresponding diameter of the wire passage 81 is configured to achieve a sealing adaptation for different wire harnesses. The side edge of the end of the conical waterproof bushing 8 is also provided with a V-shaped opening 82 along its axial direction. When squeezed by the conical split pressure head 31, the conical waterproof bushing 8 can achieve radial compression through the contraction of the V-shaped opening 82. After compression, the V-shaped opening 82 is tightly closed, thereby enhancing the fit and sealing with the rubber sleeve 21 of the wire harness 2 and the conical split pressure head 31.

[0028] The operation process of this embodiment is as follows: The inner sealing ring 6 is fitted onto the conical sealing cavity 3 and then slid until it abuts against the base 32. The conical split pressure head 31 is inserted into the through hole 11 of the terminal 1, so that the base 32 is located inside the cavity of the terminal 1 and the conical split pressure head 31 is located outside the terminal 1. Then, the outer sealing ring 5 is fitted onto the conical sealing cavity 3 and slid until it fits against the outer surface of the terminal 1. The threads on the outer surface of the conical sealing cavity 3 are tightened using the nut 7, so that the conical split pressure head 31 is connected and fixed to the terminal 1, thus securing the conical waterproof... The bushing 8 is pushed from the base 32 into the conical sealing cavity 3 and pushed to the matching position of the inner conical surface of the conical split pressure head 31. The wire harness 2 is first passed through the conical clamping nut 4, and then passed through the conical waterproof bushing 8 in the conical split pressure head 31 and the conical sealing cavity 3 in sequence, and finally introduced into the terminal 1. Finally, the conical clamping nut 4 is tightened, which squeezes the conical split pressure head 31 to produce radial contraction, thereby compressing the conical waterproof bushing 8 to undergo elastic deformation, so that it fits tightly with the rubber sleeve 21 of the wire harness 2, and at the same time, the wire harness 2 is clamped and fixed and the overall seal is completed.

[0029] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A wire harness assembly with a waterproof structure, comprising a terminal block (1) and a wire harness (2), wherein the terminal block (1) and the wire harness (2) are connected via a waterproof terminal block assembly, characterized in that: The terminal block has a through hole (11) on its side; the waterproof wiring assembly includes a conical sealing cavity (3), a conical split head (31) at the end, and a base (32) at the bottom; the diameter of the base (32) is larger than the diameter of the through hole (11), and an inner sealing ring (6) is fitted between the base (32) and the through hole (11); the inside of the conical split head (31) has a conical waterproof bushing (8) with a matching diameter, the conical sealing cavity (3) passes through the through hole (11) from the inside of the cavity of the terminal block (1), the outer surface of the conical sealing cavity (3) has threads, and a nut (7) is used to fix the terminal block (1) on the outside, the bottom of the nut (7) is padded with an outer sealing ring (5), the conical clamping nut (4) is fitted on the wire harness (2), the wire harness (2) passes through the conical sealing cavity (3) and enters the terminal block (1), the end angle of the conical clamping nut (4) is smaller than the angle of the conical split head (31).

2. The wire harness assembly with a waterproof structure according to claim 1, characterized in that: The conical split pressure head (31) is located outside the terminal (1), and the base (32) is located inside the terminal (1).

3. The wire harness assembly with a waterproof structure according to claim 1, characterized in that: The outer part of the conical waterproof bushing (8) is a conical profile that matches the inner conical surface of the conical split press head (31).

4. The wire harness assembly with a waterproof structure according to claim 3, characterized in that: The conical waterproof bushing (8) has a cylindrical wire passage (81) inside, and the diameter of the wire passage (81) is adapted to the outer diameter of the wire harness (2).

5. The wire harness assembly with a waterproof structure according to claim 4, characterized in that: The tapered waterproof bushing (8) has a V-shaped opening (82) on the side of its end along its axial direction.

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