Wire harness connector with protection structure
By introducing components such as protective outer casings, alignment pins, and limit plates into the wire harness connector, the problem of weak protection of traditional wire harness connectors in dusty environments is solved, thereby improving the stability and ease of maintenance of the connector.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN QIECHENG PRECISE DIANZI CO LTD
- Filing Date
- 2025-04-23
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional wire harness connectors have weak protection in dusty industrial environments, making them prone to short circuits or open circuits at the contact points due to dust accumulation. Furthermore, dust entering the connector can wear down the metal pins and reduce conductivity.
A wire harness connector with a protective structure was designed, including components such as a protective outer casing, alignment pins, tilting self-rebound limiting plates, roller components, and elastic push-out components. This ensures accurate and efficient connector mating, and the protective outer casing blocks dust and moisture. The transparent stretch protective cover and Velcro fasteners secure the wire harness, providing comprehensive protection.
It improves the stability and durability of connectors, prevents accidental separation, extends service life, enhances maintenance convenience, and saves time and labor costs.
Smart Images

Figure CN224264374U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a wire harness connector, and more particularly to a wire harness connector with a protective structure for use in the field of wire harness connectors. Background Technology
[0002] In modern electronic devices and electrical systems, wire harness connectors, as key components for achieving circuit connections, are widely used in various fields, including automotive manufacturing, aerospace, industrial automation, and consumer electronics. With the rapid development of technology and the increasing complexity of equipment functions, the performance requirements for connectors are becoming increasingly stringent.
[0003] Chinese patent CN214589452U discloses a wire harness connector, including a first terminal and a second terminal that cooperate with each other. A first limiting part is disposed on the inner wall of the terminal groove body and protrudes into the inner cavity of the terminal groove, forming a space between the first limiting part and the inner wall of the terminal groove to accommodate the first protrusion. The connector of this utility model has more limiting structures, the terminals are not easy to fall off, and the vibration resistance and sealing performance are better than those of traditional structures.
[0004] Traditional wire harness connectors have relatively weak protective measures during mating. In dusty industrial environments, such as coal mines and textile factories, connectors are prone to short circuits or open circuits at the contact points due to dust accumulation. Dust entering the connector can also wear down the surface of the metal pins, reducing their conductivity. Utility Model Content
[0005] The technical problem this invention aims to solve is that traditional wire harness connectors have relatively weak protective measures during mating. In dusty industrial environments, such as coal mines and textile factories, connectors are prone to short circuits or open circuits at the contact points due to dust accumulation. Dust entering the connector's interior can also wear down the surface of the metal pins, reducing their conductivity.
[0006] To address the aforementioned issues, this utility model provides a wire harness connector with a protective structure, comprising a first connector and a second connector that are interlocked. Both the first and second connectors have protective outer casings at their outer ends. Multiple electrical connection wire harnesses are located at the ends of the first and second connectors that are furthest from each other. The protective outer casing on the left side has symmetrically arranged inner alignment slots at its front and rear ends, and symmetrically arranged outer slots at the center of both ends of the protective outer casing on the left side. Corresponding outer slots and inner alignment slots are interconnected. Alignment rods are symmetrically fixedly connected to the front and rear sides of the left end of the protective outer casing on the right side. A pivot connector is located on the left side of the furthest ends of the two pivot connectors. An inclined self-rebound limiting plate is located outside the pivot connector, and the inclined self-rebound limiting plate and the outer slot engage with each other.
[0007] In the above-mentioned wire harness connector with protective structure, when the first connector and the second connector are mated, the alignment rod and the inner alignment slot are precisely matched. The roller and elastic pusher reduce friction and buffer impact, making the mating more accurate and efficient. In terms of limiting, the tilted self-rebound limiting plate forms a reliable engagement to prevent the connector from accidentally separating and ensure connection stability.
[0008] As a further improvement of this application, the upper and lower ends of the inner alignment slot are symmetrically provided with side slotted guide strips, and an inner sliding block is slidably connected between the two side slotted guide strips.
[0009] As a further improvement of this application, roller components are symmetrically arranged at the upper and lower ends of the inner sliding block, and the two roller components extend into the corresponding side inner slotted guide strip.
[0010] As a further improvement of this application, an elastic pusher is fixedly connected between the inner sliding block and the inner sidewall of the inner alignment slot, and a transparent stretch protective cover is fixedly connected to the ends of the two protective outer boxes that are far apart from each other.
[0011] As another improvement of this application, a rear displacement block is fixedly connected to the end of the transparent stretch protective cover away from the protective outer box, and a binding limit block is fixedly connected to the end of the rear displacement block away from the protective outer box.
[0012] As a further improvement to this application, the inner side of the binding limit block is fixedly connected with a female Velcro fastener, and the outer side of the binding limit block is fixedly connected with a male Velcro fastener.
[0013] As a further improvement to this application, a transparent stretch protective cover covers the outside of the corresponding electrical connection harness, and the binding limit block and the electrical connection harness are bound to each other.
[0014] In summary, this solution ensures precise engagement between the alignment pin and the inner alignment slot during the mating of the first and second connectors. Roller components and elastic push-out components reduce friction and buffer impact, resulting in more accurate and efficient mating. The tilting self-rebound limiting plate provides reliable locking, preventing accidental connector separation and ensuring connection stability. The protective outer casing blocks dust, moisture, and other foreign objects, extending connector lifespan. The cobalt carbonate transparent tensile protective cover, through a rear displacement block and Velcro, prevents damage to the wiring harness from external forces and environmental corrosion. For maintenance, simply press the tilting self-rebound limiting plate to separate the connector. The tensile protective cover is flexibly adjustable, significantly improving maintenance convenience without affecting protective performance, and saving time and labor costs. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the protective outer casing according to the first embodiment of this application;
[0016] Figure 2 This is a diagram showing the two protective outer casings separated according to the first embodiment of this application;
[0017] Figure 3 This is an exploded view of the overall structure of the first and second embodiments of this application;
[0018] Figure 4 This is the second embodiment of the present application. Figure 3 Enlarged view of a partial section of the transparent tensile protective cover;
[0019] Figure 5 This is a front cross-sectional view of the binding limit block according to the second embodiment of this application;
[0020] Figure 6 This is a schematic diagram of the external slot of the protective outer casing according to the first embodiment of this application;
[0021] Figure 7 This is an enlarged view of the external slotting in the first embodiment of this application.
[0022] Explanation of the labels in the diagram:
[0023] 1. First connector; 2. Second connector; 3. Electrical connection harness; 4. Alignment plug; 5. Rotary shaft connector; 6. Inclined self-rebound limiting plate; 7. Protective outer casing; 8. Inner alignment slot; 9. Outer slot; 10. Elastic push-out component; 11. Inner sliding block; 12. Side inner slotted guide strip; 13. Roller component; 14. Transparent stretch protective cover; 15. Rear displacement block; 16. Binding limiting block; 17. Male Velcro; 18. Female Velcro. Detailed Implementation
[0024] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.
[0025] First implementation method:
[0026] Figure 1-3 , Figure 6-7 A wire harness connector with a protective structure is shown, including a first connector 1 and a second connector 2 that are plugged into each other. The outer ends of the first connector 1 and the second connector 2 are covered with protective outer casings 7. Multiple electrical connection wire harnesses 3 are provided at the ends of the first connector 1 and the second connector 2 that are far apart from each other. The protective outer casing 7 on the left side has symmetrical inner alignment slots 8 at both ends. The protective outer casing 7 on the left side has symmetrical outer slots 9 at the middle of both ends. The corresponding outer slots 9 and inner alignment slots 8 are interconnected. The protective outer casing 7 on the right side has symmetrical alignment rods 4 fixedly connected to the left end on both ends. The two alignment rods 4 that are far apart from each other are provided with a pivot connector 5 on the left side. An inclined self-rebound limiting plate 6 is provided outside the pivot connector 5. The inclined self-rebound limiting plate 6 and the outer slot 9 are engaged with each other.
[0027] The inner alignment slot 8 has symmetrically provided inner grooved guide strips 12 at its upper and lower ends. An inner sliding block 11 is slidably connected between the two inner grooved guide strips 12. Roller components 13 are symmetrically provided at the upper and lower ends of the inner sliding block 11. The two roller components 13 extend into the corresponding inner grooved guide strips 12. An elastic pusher component 10 is fixedly connected between the inner sliding block 11 and the inner wall of the inner alignment slot 8.
[0028] Figure 1-3 , Figure 6-7This wiring harness connector achieves electrical connection through the insertion of the first connector 1 and the second connector 2, with the outer protective housing 7 providing basic protection. When the two are inserted, the alignment rod 4 of the right protective housing 7 inserts into the inner alignment slot 8 on the left. The inclined self-rebound limiting plate 6, connected by the pivot connector 5, automatically engages into the outer slot 9, completing the locking and forming protection. This significantly enhances the stability of the connector connection, ensuring good connection performance under various complex working conditions, such as vibration during equipment operation and bumps during transportation. When disassembly is required, the inclined self-rebound limiting plate 6 is manually pressed to disengage it from the outer slot 9, thereby releasing the locking between the two protective housings 7. This facilitates the separation of the first connector 1 and the second connector 2, allowing for convenient inspection, cleaning, replacement, and other maintenance operations of the internal pins, wiring, and other components of the connector. The inner sliding block 11 in the inner alignment slot 8 allows for... The sliding guide strip 12 with its inner slotted side slides through the elastic pusher 10, reducing sliding friction and making the movement of the inner sliding block 11 smoother. It works with the roller 13 to achieve smooth guidance during the insertion and removal process. The elastic pusher 10, which is fixedly connected between the inner sliding block 11 and the inner wall of the inner alignment slot 8, will generate elastic deformation when squeezed, storing elastic potential energy to provide power for subsequent reset. It also buffers the impact force when the alignment rod 4 is inserted to a certain extent, ensuring that the movement of the inner sliding block 11 is more stable and smooth, making the entire docking process more accurate and efficient. The protective outer casing 7 is fitted on the outer end of the first connector 1 and the second connector 2, providing preliminary physical protection for the connectors, blocking external dust, moisture and foreign objects, and preventing them from damaging the internal structure of the connectors.
[0029] Second implementation method:
[0030] Figure 3-5 A wire harness connector with a protective structure is shown. Two protective outer casings 7 are each fixedly connected to a transparent stretch protective cover 14 at their ends, away from each other. A rear displacement block 15 is fixedly connected to the end of the transparent stretch protective cover 14 away from the protective outer casing 7. A binding limiting block 16 is fixedly connected to the end of the rear displacement block 15 away from the protective outer casing 7. A female hook and loop fastener 18 is fixedly connected to the inner side of the binding limiting block 16, and a male hook and loop fastener 17 is fixedly connected to the outer side of the binding limiting block 16. The transparent stretch protective cover 14 covers the outer side of the corresponding electrical connection wire harness 3, and the binding limiting block 16 and the electrical connection wire harness 3 are mutually bound. The transparent stretch protective cover 14 on the outside of the connector covers the electrical connection wire harness 3, and the female hook and loop fastener 18 and the male hook and loop fastener 17 of the binding limiting block 16 are bonded together, fixing the wire harness inside the protective cover, forming an anti-loosening, dustproof, and waterproof enclosure structure. This provides comprehensive protection for the electrical connection wire harness 3, preventing the wire harness from being worn, pulled, and corroded by the external environment.
[0031] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.
Claims
1. A wire harness connector with a protective structure, characterized in that: The device includes a first connector (1) and a second connector (2) that are plugged into each other. The outer ends of the first connector (1) and the second connector (2) are fitted with protective outer casings (7). The ends of the first connector (1) and the second connector (2) that are far apart from each other are provided with multiple electrical connection harnesses (3). The protective outer casing (7) on the left side has symmetrical inner alignment slots (8) at both ends. The protective outer casing (7) on the left side has symmetrical outer slots (9) at the middle of both ends. The corresponding outer slots (9) and inner alignment slots (8) are interconnected. The protective outer casing (7) on the right side has symmetrical alignment rods (4) fixedly connected to the front and rear sides of the left end. The two alignment rods (4) that are far apart from each other are provided with a rotating shaft connector (5) on the left side. The rotating shaft connector (5) is provided with an inclined self-rebound limiting plate (6). The inclined self-rebound limiting plate (6) and the outer slot (9) are engaged with each other.
2. A wire harness connector with a protective structure according to claim 1, characterized in that: The inner alignment slot (8) has symmetrically provided inner grooved guide strips (12) at its upper and lower ends, and an inner sliding block (11) is slidably connected between the two inner grooved guide strips (12).
3. A wire harness connector with a protective structure according to claim 2, characterized in that: The inner sliding block (11) is symmetrically provided with roller components (13) at its upper and lower ends, and the two roller components (13) extend into the corresponding side inner slotted guide strip (12).
4. A wire harness connector with a protective structure according to claim 3, characterized in that: An elastic pusher (10) is fixedly connected between the inner sliding block (11) and the inner side wall of the inner alignment slot (8), and a transparent stretch protective cover (14) is fixedly connected to the two protective outer boxes (7) at their opposite ends.
5. A wire harness connector with a protective structure according to claim 4, characterized in that: The transparent stretch protective cover (14) is fixedly connected to a rear displacement block (15) at the end away from the protective outer box (7), and a binding limit block (16) is fixedly connected to the end of the rear displacement block (15) away from the protective outer box (7).
6. A wire harness connector with a protective structure according to claim 5, characterized in that: The inner side of the binding limiting block (16) is fixedly connected with a negative side hook and loop fastener (18), and the outer side of the binding limiting block (16) is fixedly connected with a positive side hook and loop fastener (17).
7. A wire harness connector with a protective structure according to claim 6, characterized in that: The transparent stretch protective cover (14) covers the outside of the corresponding electrical connection harness (3), and the binding limit block (16) and the electrical connection harness (3) are bound to each other.