A new energy vehicle wiring harness connection clip

Abstract

This utility model belongs to the field of connector technology, specifically relating to a new energy vehicle wiring harness connection buckle. It includes a first engaging portion, which comprises an inclined first contact portion, a first curved portion located on the bottom surface of the first contact portion, and limiting components located on both sides of the top surface of the first curved portion. Each limiting component includes an extension portion connected to the first curved portion. A second curved portion and an engaging portion are sequentially arranged on the top surface of the engaging portion, which is vertically positioned. A connecting portion is located on the bottom surface of the first curved portion, and a second engaging portion is located on the bottom surface of the connecting portion. The second engaging portion comprises a limiting portion and second contact portions located on both sides of the limiting portion. The second contact portions are located on both sides of the connecting portion, and the limiting portions are located on the bottom surface of the connecting portion, forming an angle with the connecting portion. Through the arrangement of these components, not only is the power transmission efficiency improved, but the connection strength between the buckle and the wiring harness is also enhanced, solving the technical problem of insufficient reliability of the connection buckle.

Description

Technical Field

[0001] This utility model belongs to the field of connector technology, specifically relating to a new energy vehicle wiring harness connection clip. Background Technology

[0002] With the booming development of the new energy vehicle industry, the complexity of vehicle electrical systems is increasing exponentially. As the core component for power transmission and signal interaction in the entire electrical system, the reliability and durability of the wiring harness directly affect the safety and lifespan of the entire vehicle. The wiring harness connector clip, as a core component in the wiring harness system that bears the dual responsibility of mechanical and electrical connection, operates in extremely harsh environments. Under the continuous impact of high voltage and high current, it also faces the challenges of high-frequency vibration and complex environments such as high temperature, humidity, and corrosive media. Therefore, it is essential to ensure that it maintains stable contact resistance and sufficient mechanical strength under various operating conditions.

[0003] In recent years, stainless steel has gradually emerged in the connector field due to its excellent corrosion resistance, outstanding mechanical strength, and good high-temperature stability, and has been applied to the manufacture of wire harness connector clips. However, existing stainless steel wire harness clip designs have many shortcomings in their structural design, resulting in numerous problems in practical applications.

[0004] Firstly, from the perspective of contact resistance control, the conductivity of stainless steel is significantly lower than that of traditional conductive materials such as copper alloys. Existing snap-fit ​​structures often have inadequate contact surface design, insufficient contact area, or excessively high surface roughness, causing excessive resistance to current transmission and easily leading to localized overheating. Localized overheating not only affects the current-carrying capacity of high-voltage harnesses and reduces power transmission efficiency, but can also cause thermal damage to surrounding electrical components, affecting the normal operation of the entire electrical system.

[0005] Secondly, regarding vibration-resistant design, most stainless steel clips on the market currently only use a one-way engagement mechanism. During the operation of new energy vehicles, the vehicle body is subjected to multi-directional composite vibrations caused by factors such as uneven road surfaces and engine vibrations. Under such complex vibration conditions, one-way engagement locking mechanisms are highly susceptible to loosening due to prolonged mechanical fatigue. Once the clips loosen, the wiring harness connection will be severely affected, potentially leading to serious faults such as short circuits or open circuits in the electrical system, posing a significant threat to driving safety. Utility Model Content

[0006] The purpose of this utility model is to provide a new energy vehicle wiring harness connection buckle, which aims to solve the technical problems of existing stainless steel wiring harness connection buckles, which suffer from low power transmission efficiency due to unreasonable structural design, poor contact surface design, insufficient contact area or excessive surface roughness, and insufficient connection strength due to unreasonable locking mechanism design, ultimately resulting in insufficient reliability.

[0007] To achieve the above objectives, this utility model provides a new energy vehicle wiring harness connection clip, comprising a first engaging portion, a connecting portion, and a second engaging portion connected in sequence. The first engaging portion, connecting portion, and second engaging portion are integrally formed from stainless steel sheet. The first engaging portion includes a first contact portion, which protrudes outward and is inclined towards the back. A first curved portion is provided on the bottom surface of the first contact portion, and limiting components are provided on both sides of the first curved portion. Each limiting component includes an extension portion located on the surface of the first curved portion facing the top of the connecting portion. A second curved portion is provided on the top surface of the first curved portion; the second curved portion is arc-shaped, and its protrusion direction is opposite to that of the first curved portion. An engaging portion is provided on the top surface of the second curved portion, perpendicular to the bottom surface of the first curved portion. The second engaging portion includes a limiting portion located at the bottom of the connecting portion and inclined downward towards the back. The thickness of the new energy vehicle wiring harness connection clip is 1-1.5 mm.

[0008] Preferably, the angle between the first contact portion and the horizontal plane is 10-15 degrees.

[0009] Preferably, the first contact portion is located in the middle of the first curved portion, the length of the first curved portion is greater than the length of the first contact portion, the first curved portion is arc-shaped, and its protrusion direction is upward.

[0010] Preferably, a gap is formed between the limiting component and the first curved portion.

[0011] Preferably, the width of the connecting portion is the same as the width of the first contact portion, and it is perpendicularly disposed on the bottom surface of the first curved portion and located in the middle of the first curved portion.

[0012] Preferably, the angle between the plane containing the limiting part and the horizontal plane is 15-25 degrees.

[0013] Preferably, after the limiting part is inserted into the wire harness connector, it deforms under the constraint of the wire harness connector, causing the limiting part to tend to be on the same plane as the connecting part. Under the elastic force of the limiting part, the wire harness connector is stably connected to the second engaging part.

[0014] Preferably, the lower half of the connecting portion is provided with second contact portions on both sides, a gap is formed between the second contact portions and the limiting portion, and a third bending portion is provided in the second contact portion.

[0015] Preferably, the third curved portion increases the contact area between the second contact portion and the wire harness connector wire, and its continuous curved structure makes the external force received by the second engaging portion more evenly distributed when it is inserted and pulled out, while optimizing the electric and magnetic field distribution and reducing electromagnetic interference.

[0016] The above-mentioned technical solutions in the new energy vehicle wiring harness connection clip provided in this embodiment of the utility model have at least one of the following technical effects:

[0017] This utility model discloses a new energy vehicle wiring harness connector clip. Before production, it undergoes cleaning and annealing treatment to optimize the stainless steel substrate, eliminate residual processing stress, and remove surface impurities. This improves the connector clip's conductivity, toughness, and ductility, enhancing the material's overall mechanical properties and corrosion resistance, ensuring stability and reliability during long-term vehicle use. Furthermore, the design of the first contact portion, first bending portion, and second contact portion creates a uniform pressure distribution on the wiring harness connector's contact surface, increases the effective contact area, significantly reduces contact resistance, and improves current transmission efficiency, thus addressing the insufficient conductivity of traditional stainless steel clips.

[0018] The new energy vehicle wiring harness connection buckle of this utility model can form a bidirectional locking and fastening of the wiring harness connector through the coordinated cooperation of the first contact part, the first bending part, the first engaging part limiting component and the second engaging part limiting part. Furthermore, through the elastic compensation of the first bending part and the second bending part, a stable fixation is achieved, which greatly improves the connection strength and anti-loosening ability.

[0019] This utility model discloses a new energy vehicle wiring harness connection buckle, which, with the cooperation of the first engaging part, the connecting part, and the second engaging part, can simultaneously optimize the power transmission efficiency and mechanical connection strength, while taking into account both improved conductivity and enhanced fatigue resistance, thus solving the technical problem of insufficient reliability of traditional buckles. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art 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.

[0021] Figure 1 This is a perspective view of a new energy vehicle wiring harness connection clip provided for an embodiment of the present utility model.

[0022] Figure 2A front view of a new energy vehicle wiring harness connection clip provided in an embodiment of this utility model.

[0023] Figure 3 A side view of a new energy vehicle wiring harness connection clip provided in an embodiment of this utility model.

[0024] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0025] Figure 5 This is a bottom view of a new energy vehicle wiring harness connection clip provided for an embodiment of the present utility model.

[0026] The following are the labeling elements in the figure:

[0027] 10—First engaging portion; 11—First contact portion; 12—First bending portion; 13—Limiting assembly

[0028] 131—Extension section; 132—Second bending section; 133—Engaging section; 20—Connecting section

[0029] 30—Second engaging part; 31—Limiting part; 32—Second contact part; 321—Third bending part. Detailed Implementation

[0030] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0031] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are only for the purpose of describing the embodiments of 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.

[0032] 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 one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0034] In one embodiment of this utility model, such as Figure 1-4 As shown, a new energy vehicle wiring harness connection buckle is provided, which is made of stainless steel after cleaning and annealing treatment, and includes a first engaging part 10, a connecting part 20, and a second engaging part 30 with a thickness of 1-1.5 mm, preferably 1.2 mm.

[0035] like Figure 1 As shown, a connecting part 20 is provided below the first engaging part 10, and the side of the connecting part 20 facing upward is the front. A second engaging part 30 is provided below the connecting part 20. The first engaging part 10 is connected to the second engaging part 30 through the connecting part 20. The first engaging part 10, the connecting part 20, and the second engaging part 30 are integrally formed.

[0036] The first engaging portion 10 includes a first contact portion 11, which protrudes outward and is inclined towards the back side, forming an angle of 10-15 degrees with the horizontal plane, preferably 12 degrees. The structure and angle of the first contact portion 11 ensure that after insertion into the wire harness connector, the first contact portion 11 is compressed and deformed by the wire harness connector, resulting in a uniform pressure distribution on the contact surface of the wire harness connector. This also increases the effective contact area, significantly reduces contact resistance, improves current transmission efficiency, and solves the problem of insufficient conductivity in traditional stainless steel clips. A first curved portion 12 is provided at one end of the first contact portion 11 near the second engaging portion 30. The first contact portion 11 is located in the middle of the first curved portion 12, and the length of the first curved portion 12 is greater than the length of the first contact portion 11. The first curved portion 12 is arc-shaped, and its protrusion direction is upward.

[0037] Limiting components 13 are provided on both sides of the first curved portion 12, and a gap is formed between the limiting components 13 and the first curved portion 12. The limiting components 13 include an extension portion 131, and the extension portion 131 is provided with the first curved portion 12 and the second curved portion 132 in sequence. The first curved portion 12 is connected to the first curved portion 12. The second curved portion 132 is also arc-shaped, and its protrusion direction is opposite to the protrusion direction of the first curved portion 12. The other end of the second curved portion 132 is provided with a locking portion 133, which is perpendicular to the bottom surface of the first curved portion 12. The first curved portion 12 and the second curved portion 132 play an elastic compensation role. After the locking portion 133 and the first contact portion 11 are inserted into the wire harness connector, forces in different directions are applied to the wire harness connector, so that the first locking portion 10 is connected and secured to the wire harness connector, and the first contact portion 11 is in close contact with the wire in the wire harness connector, providing a sufficient path for current transmission.

[0038] The width of the connecting part 20 is the same as the width of the first contact part 11. It is vertically disposed on the bottom surface of the first curved part 12 and located in the middle of the first curved part 12. The lower end of the connecting part 20 is provided with a second engaging part 30. The second engaging part 30 includes a limiting part 31. The limiting part 31 is disposed at the bottom of the connecting part 20 and is inclined downward toward the back. The angle formed between the plane where the limiting part 31 is located and the horizontal plane is 15-25 degrees, preferably 20 degrees. After the limiting part 31 is inserted into the wire harness connector, the limiting part 31 deforms under the restriction of the wire harness connector, so that the limiting part 31 tends to be on the same plane as the connecting part 20. The atomic or molecular structure of the limiting part 31 will generate a force that resists deformation and tries to return to the initial state due to deformation, that is, elastic force. Under the action of the elastic force of the limiting part 31, the wire harness connector and the second engaging part 30 are firmly connected.

[0039] like Figure 5 As shown, the lower half of the connecting part 20 is provided with second contact parts 32 on both sides. A gap is formed between the second contact parts 32 and the limiting part 31. The second contact parts 32 are inserted into the wire harness connector and contact the wires in the wire harness connector. The second contact parts 32 are bent, and the bent part is the third bend 321. The third bend 321 extends upward and outward toward the front of the connecting part 20 to achieve a bent structure. The setting of the third bend 321 can increase the contact area with the wires of the wire harness connector, providing sufficient path for current transmission. At the same time, the continuous curve structure of the third bend 321 can make the external force received by the second engaging part 30 more evenly distributed when it is inserted and pulled out, avoiding stress concentration. In addition, compared with the vertically bent plug, the bend may cause signal reflection and refraction, affecting signal integrity. The curved plug shape also helps to optimize the electric field and magnetic field distribution, reduce its own electromagnetic interference, and reduce the impact of external interference on signal transmission.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A new energy vehicle wire harness connecting buckle, characterized in that: The device includes a first engaging portion (10), a connecting portion (20), and a second engaging portion (30) connected in sequence. The first engaging portion (10), the connecting portion (20), and the second engaging portion (30) are integrally formed from stainless steel sheet. The first engaging portion (10) includes a first contact portion (11), which protrudes outward and is inclined towards the back. The bottom surface of the first contact portion (11) is provided with a first curved portion (12), and limiting components (13) are provided on both sides of the first curved portion (12). The limiting components (13) include an extension portion (131), which is located on the first curved portion. The surface of part (12) facing the top of the connecting part (20) has a second curved part (132) on the top surface of the first curved part (12). The second curved part (132) is arc-shaped and its protrusion direction is opposite to that of the first curved part (12). The top surface of the second curved part (132) has a locking part (133) which is perpendicular to the bottom surface of the first curved part (12). The second locking part (30) includes a limiting part (31) which is located at the bottom of the connecting part (20) and is inclined downward toward the back. The thickness of the new energy vehicle wiring harness connecting buckle is 1-1.5 mm.

2. The new energy vehicle wire harness connecting buckle according to claim 1, characterized in that: The angle between the first contact portion (11) and the horizontal plane is 10-15 degrees.

3. The new energy vehicle wire harness connecting buckle according to claim 1 or 2, characterized in that: The first contact portion (11) is located in the middle of the first curved portion (12). The length of the first curved portion (12) is greater than the length of the first contact portion (11). The first curved portion (12) is arc-shaped and its protrusion direction is upward.

4. A new energy vehicle wiring harness connection clip according to claim 1, characterized in that: A gap is formed between the limiting component (13) and the first curved portion (12).

5. A new energy vehicle wiring harness connection clip according to claim 1, characterized in that: The width of the connecting part (20) is the same as the width of the first contact part (11), and it is vertically disposed on the bottom surface of the first curved part (12) and located in the middle of the first curved part (12).

6. A new energy vehicle wiring harness connection clip according to claim 1, characterized in that: The angle between the plane where the limiting part (31) is located and the horizontal plane is 15-25 degrees.

7. A new energy vehicle wiring harness connection clip according to claim 6, characterized in that: After the limiting part (31) is inserted into the wire harness connector, it deforms under the restriction of the wire harness connector, so that the limiting part (31) tends to be on the same plane as the connecting part (20). Under the elastic force of the limiting part (31), the wire harness connector is firmly connected to the second engaging part (30).

8. A new energy vehicle wiring harness connection clip according to claim 1, characterized in that: The lower half of the connecting part (20) is provided with a second contact part (32) on both sides, and a gap is formed between the second contact part (32) and the limiting part (31). A third bending part (321) is provided in the second contact part (32).

9. A new energy vehicle wiring harness connection clip according to claim 8, characterized in that: The third curved portion (321) increases the contact area between the second contact portion (32) and the wire harness connector wire, and its continuous curved structure makes the external force received by the second engaging portion (30) more evenly distributed when it is inserted and pulled out, while optimizing the electric field and magnetic field distribution and reducing electromagnetic interference.

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