A connector with a nested mistaken insertion prevention structure
The connector, with its nested anti-mismating structure, employs a quick-release mechanism and anti-mismating system, solving the problems of inconvenient and easily damaged spring contacts. This enables convenient and safe insertion and removal operations and improves the connector's service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN KAIXIANG ELECTRIC APPLIANCE CO LTD
- Filing Date
- 2025-09-02
- Publication Date
- 2026-07-21
AI Technical Summary
Existing pluggable nested connectors are inconvenient to unlock and easily damaged during use. In particular, non-professionals may forcefully plug or unplug them due to pain or visual errors, causing structural damage.
A nested anti-mismating connector structure was designed, employing a quick-release mechanism including a movable plate and an abutment block. The movable plate drives the abutment block to unlock the spring plate, and the anti-mismating system is constructed through protrusions and slots, providing clear tactile feedback and stable mechanical interlocking.
It achieves convenient and safe spring-loaded unlocking, avoids damage caused by violent operation, improves the ease of use and durability of the connector, and enhances the reliability of anti-misinsertion and the smoothness of operation.
Smart Images

Figure CN224537495U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wire harness connectors, specifically a connector with a nested anti-mismating structure. Background Technology
[0002] Wiring harness connectors, also known as plugs, are important components in automotive circuits used to connect wiring harnesses to each other and to electrical components. They consist of a plug and a socket and employ a locking device to ensure a stable connection and prevent dislodgement due to vibration. The locking device must be released before disassembly. Wiring harness connectors not only function as electrical relay stations, but their structural design also enables the orderly arrangement and routing of wires, improving the efficiency of circuit maintenance.
[0003] Currently, pluggable nested connectors enable rapid electrical connection during use and are equipped with spring clips for locking. However, a problem exists in actual use: when the spring clip is engaged, separating the connector requires the operator to press the spring clip to engage it. Traditional spring clips are relatively small, causing stress concentration on the fingertips and resulting in pain when pressed. Furthermore, non-professionals may overlook the spring clip and forcefully plug or unplug the connector, damaging the locking spring clip. Therefore, the inventor urgently needs to design a quick-release mechanism that facilitates spring clip unlocking, thereby improving the ease of use of the connector. Utility Model Content
[0004] Therefore, the purpose of this utility model is to provide a connector with a nested anti-misinsertion structure to solve the technical problems of inconvenient spring release and potential damage encountered in the use of nested connectors.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a connector with a nested anti-misinsertion structure, including a male connector head and a female connector head. A nested frame is fixedly provided on the side of the male connector head near the female connector head. The nested frame is sleeved on the outside of the female connector head, and the female connector head is engaged with the nested frame through a spring sheet and a slot. A quick-release mechanism for contacting the spring sheet and the slot engagement state is installed on the outside of the male connector head.
[0006] The quick-release mechanism includes a movable plate, with connecting pieces fixedly arranged on both sides of the movable plate. An abutment block is provided on the side of the connecting piece near the slot. The movable plate is slidably connected to the male connector. The abutment block is used to abut against the spring sheet and unlock it.
[0007] By adopting the above technical solution, the nested frame structure completely encloses the connector female head, forming a physical isolation barrier, which fundamentally eliminates the problem of misaligned insertion caused by visual errors or operational negligence. At the same time, the engagement setting of the spring sheet and the slot provides clear tactile feedback and stable mechanical interlocking, ensuring that the connection remains stable in a vibration environment.
[0008] Furthermore, the movable plate and the connecting pieces on both sides form a "C" shape, and the movable plate and the connecting pieces are made of plastic.
[0009] By adopting the above technical solution, its "C"-shaped frame can evenly bear the pressing pressure during operation and effectively transmit the force to the abutment blocks on both sides, ensuring the synchronicity and stability of the unlocking action.
[0010] Furthermore, a groove is provided on the side surface of the movable plate near the male connector, and the movable plate engages and slides with the male connector through the groove and the slider.
[0011] By adopting the above technical solution, the sliding connection between the movable plate and the connector male head is realized through the cooperation of the sliding groove and the slider, which provides precise linear guidance and constraint for the movement of the quick release mechanism, effectively preventing the movable plate from deflecting, tilting or detaching during the sliding process, and ensuring that the abutment block can always act directly on the spring plate, thereby making the unlocking action accurate and reliable.
[0012] Furthermore, the surface of the movable plate is provided with an inner groove, which is the point where the operator's thumb applies force to the movable plate.
[0013] By adopting the above technical solution, the groove provides an ergonomic force application point for the thumb. Its concave shape can effectively fit the fingertip, increase the contact area, and distribute the operating pressure, making the pushing operation more effortless and comfortable. It avoids the slipping problem that may occur on smooth surfaces, and can ensure effective operation, especially in humid or oily environments.
[0014] Furthermore, both the male and female connectors are provided with anti-slip textures on their surfaces.
[0015] By adopting the above technical solution, the anti-slip texture significantly increases the coefficient of friction between the user's hand and the surface of the casing, enabling the user to obtain sufficient grip force when performing insertion and removal actions, preventing hand slippage, and ensuring effective force transmission and smooth operation.
[0016] Furthermore, a protrusion is fixedly provided on the surface of the female connector, and a slot is provided on the surface of the nested frame at the position opposite to the protrusion. When the male connector and the female connector are inserted, the protrusion and the slot are adapted to prevent mis-insertion of the male connector and the female connector.
[0017] By adopting the above technical solution, an independent keyway-type anti-misinsertion system was constructed, which greatly improved the reliability of anti-misinsertion. Even if the nested frame is slightly inserted by external force, the erroneous connection can be prevented because the protrusion cannot fall into the wrong position.
[0018] Furthermore, one side of the protrusion is formed with an arc, which guides the protrusion to fit into the slotted connection.
[0019] By adopting the above technical solution, a smooth guide slope can be generated when the protrusion contacts the edge of the slot in the initial stage of insertion. The axial insertion force is converted into a lateral guiding force that causes the protrusion to slide into the slot by utilizing the principle of force component. This achieves smooth automatic alignment and insertion, effectively reducing the jamming sensation and the required force during the insertion process, making the connection action easier.
[0020] In summary, the present invention has the following main advantages:
[0021] 1. This utility model uses a quick-release mechanism to unlock the device by driving the sliding movable plate to linearly press the spring sheet of the abutment block. This changes the operating force from pressing the small spring sheet with the fingertip to pushing the large movable plate with the palm or thumb, which significantly reduces local pressure, solves the problems of unlocking pain and blind spots in operation, and effectively prevents damage to components caused by violent insertion and removal.
[0022] 2. This utility model uses protrusions and slots to guide the operator to align the nested frame of the male connector with the female connector. The protrusions on its surface cooperate with the slots on the nested frame to prevent mis-insertion. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0024] Figure 2 This is a top view of the structure of this utility model;
[0025] Figure 3 This is a schematic diagram of the structure of the female connector of this utility model;
[0026] Figure 4 This is a schematic diagram of the male connector of this utility model.
[0027] In the diagram: 1. Male connector; 2. Female connector; 3. Nested frame; 401. Spring sheet; 402. Slot; 5. Quick release mechanism; 501. Movable plate; 502. Slide groove; 503. Slider; 504. Inner groove; 505. Connecting piece; 506. Abutment block; 601. Protrusion; 602. Slot. Detailed Implementation
[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0029] In this embodiment:
[0030] A connector with a nested anti-mismating structure, such as Figure 1-4 As shown, it includes a male connector 1 and a female connector 2. A nesting frame 3 is fixedly provided on the side of the male connector 1 near the female connector 2. The nesting frame 3 is sleeved on the outside of the female connector 2, and the female connector 2 is engaged with the nesting frame 3 through a spring sheet 401 and a slot 402. A quick-release mechanism 5 is installed on the outside of the male connector 1 to contact the engaged state of the spring sheet 401 and the slot 402.
[0031] The quick-release mechanism 5 includes a movable plate 501, with connecting pieces 505 fixedly mounted on both sides of the movable plate 501. An abutment block 506 is provided on the side of the connecting piece 505 near the slot 402. The movable plate 501 is slidably connected to the male connector 1. The abutment block 506 is used to abut and unlock the spring piece 401. The nested frame 3 structure completely encloses the female connector 2, forming a physical isolation barrier, fundamentally eliminating misalignment problems caused by visual errors or operational negligence. At the same time, the engagement setting of the spring piece 401 and the slot 402 provides clear tactile feedback and stable mechanical interlocking, ensuring stability in a vibration environment after connection. The quick-release mechanism 5 integrated on the outside of the male connector 1 achieves one-click linear unlocking of the internal latch by sliding and driving the abutment block 506, greatly simplifying the unlocking operation and avoiding the inconvenience and potential damage caused by directly pressing the small spring piece 401, significantly improving the ease of use and durability of the connector.
[0032] See Figure 1 , Figure 2 , Figure 4 The movable plate 501 and the connecting pieces 505 on both sides form a "C" shape. The movable plate 501 and the connecting pieces 505 are made of plastic. The "C" shaped frame can evenly bear the pressing pressure during operation and effectively transmit the force to the abutment blocks 506 on both sides, ensuring the synchronization and stability of the unlocking action. At the same time, the use of plastic material not only achieves the weight reduction of the entire quick-release mechanism 5, reducing the overall weight and inertia of the connector, but its inherent insulation properties also enhance the safety during live operation.
[0033] See Figure 1 , Figure 2 , Figure 4The movable plate 501 has a groove 502 on the side surface near the male connector 1. The movable plate 501 engages and slides with the male connector 1 through the groove 502 and the slider 503. The sliding connection between the movable plate 501 and the male connector 1 is achieved through the cooperation of the groove 502 and the slider 503, which provides precise linear guidance and constraint for the movement of the quick release mechanism 5. This effectively prevents the movable plate 501 from deflecting, tilting or disengaging during the sliding process, and ensures that the abutment block 506 always acts directly on the spring plate 401, thereby making the unlocking action accurate and reliable. At the same time, this engaging and sliding connection method facilitates the modular assembly and disassembly of components. If a component is damaged, it can be replaced individually, reducing the later maintenance cost.
[0034] See Figure 1 , Figure 2 , Figure 4 The surface of the movable plate 501 is provided with an inner groove 504. The inner groove 504 is the point where the operator's thumb applies force to the movable plate 501. The inner groove 504 provides an ergonomic force application point for the thumb. Its concave shape can effectively fit the fingertip, increase the contact area, and distribute the operating pressure, making the pushing operation more effortless and comfortable. It avoids the slipping problem that may occur on a smooth surface, and can ensure effective operation, especially in humid or greasy environments. At the same time, the inner groove 504 serves as a very intuitive visual and tactile marker, which can clearly guide the operator to find the correct operating position. It plays a strong guiding role, especially for non-professionals, and effectively avoids violent plugging and unplugging behavior due to not being able to find or misoperating the unlocking mechanism, thereby protecting the internal precision spring plate 401 structure from damage.
[0035] See Figure 1 , Figure 2 , Figure 3 , Figure 4 Both the male connector 1 and the female connector 2 have anti-slip textures on their surfaces. These textures significantly increase the coefficient of friction between the user's hand and the housing surface, allowing the user to have sufficient grip when inserting and removing the connector, preventing hand slippage, ensuring effective force transmission and smooth operation. At the same time, these anti-slip textures enhance the texture of the housing surface and, to some extent, conceal minor scratches that occur during daily use, maintaining the durability of the product's appearance.
[0036] See figure Figure 3 , Figure 4The surface of the female connector 2 is fixedly provided with a protrusion 601, and the surface of the nested frame 3 is provided with a slot 602 opposite to the position of the protrusion 601. When the male connector 1 and the female connector 2 are inserted, the protrusion 601 and the slot 602 are matched to prevent mis-insertion of the male connector 1 and the female connector 2. This constructs an independent keyway-type anti-mis-insertion system, which greatly improves the reliability of anti-mis-insertion. Even if the nested frame 3 is slightly inserted by external force, the protrusion 601 will not fall into the wrong position, thus preventing the final incorrect connection. At the same time, this physical limiting structure provides another extremely intuitive insertion guide. The operator only needs to roughly align the protrusion 601 and the slot 602 by sight or touch to ensure the correct insertion direction. This simplifies the alignment steps and improves assembly efficiency, and is especially suitable for complex operating environments with poor lighting or limited space.
[0037] See Figure 3 , Figure 4 One side of the protrusion 601 has an arc, which guides the protrusion 601 to fit into the slot 602. It can generate a smooth guide slope when the protrusion 601 contacts the edge of the slot 602 in the initial stage of insertion. By utilizing the principle of force component, the axial insertion force is converted into a lateral guiding force that makes the protrusion 601 slide into the slot 602, thereby achieving smooth automatic alignment and insertion. This effectively reduces the feeling of jamming and the required force during the insertion process, making the connection action easier. At the same time, this arc guiding structure avoids the rigid impact between the two mating parts, significantly reduces the wear at the corners of the protrusion 601 and the slot 602, protects the integrity of the key anti-misinsertion structure, thereby extending the service life of the entire connector and maintaining the reliability of the anti-misinsertion function after long-term use.
[0038] The implementation principle of this embodiment is as follows: When connecting, the operator aligns the nested frame 3 of the male connector 1 with the female connector 2. The anti-misinsertion guidance is achieved by the cooperation of the protrusion 601 on its surface and the slot 602 on the nested frame 3. After insertion, the spring plates 401 on both sides of the female connector 2 will automatically engage with the slots 402 on the nested frame 3 to complete the connection and lock.
[0039] When separation is required, the operator places their thumb on the groove 504 on the surface of the movable plate 501 of the quick-release mechanism 5 and slides the movable plate 501 along the slide groove 502. The movable plate 501 drives the abutment block 506 to move through the connecting pieces 505 on both sides. The abutment block 506 presses the spring plate 401 to cause it to deform elastically, thereby releasing the engagement between the spring plate 401 and the slot 402. At this time, the male connector 1 and the female connector 2 can be easily separated, completing the quick disassembly.
[0040] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A connector with a nested anti-mismating structure, characterized in that: The connector includes a male connector (1) and a female connector (2). A nesting frame (3) is fixedly provided on the side of the male connector (1) near the female connector (2). The nesting frame (3) is sleeved on the outside of the female connector (2). The female connector (2) is engaged with the nesting frame (3) through a spring sheet (401) and a slot (402). A quick-release mechanism (5) is installed on the outside of the male connector (1) to contact the engaged state of the spring sheet (401) and the slot (402). The quick-release mechanism (5) includes a movable plate (501), with connecting pieces (505) fixedly arranged on both sides of the movable plate (501). An abutment block (506) is provided on the side of the connecting piece (505) near the slot (402). The movable plate (501) is slidably connected to the male connector (1), and the abutment block (506) is used to abut against and unlock the spring piece (401).
2. The connector with a nested anti-mismating structure according to claim 1, characterized in that: The movable plate (501) and the connecting pieces (505) on both sides form a "C" shape, and the movable plate (501) and the connecting pieces (505) are made of plastic.
3. The connector with a nested anti-mismating structure according to claim 1, characterized in that: The movable plate (501) has a groove (502) on the side surface near the male connector (1). The movable plate (501) engages and slides with the male connector (1) through the groove (502) and the slider (503).
4. The connector with a nested anti-mismating structure according to claim 1, characterized in that: The surface of the movable plate (501) is provided with an inner groove (504), which is the point where the operator's thumb applies force to the movable plate (501).
5. The connector with a nested anti-mismating structure according to claim 1, characterized in that: The surfaces of both the male connector (1) and the female connector (2) are provided with anti-slip textures.
6. The connector with a nested anti-mismating structure according to claim 1, characterized in that: The surface of the female connector (2) is fixedly provided with a protrusion (601), and the surface of the nested frame (3) is provided with a slot (602) opposite to the position of the protrusion (601). When the male connector (1) and the female connector (2) are plugged in, the protrusion (601) and the slot (602) are adapted to each other to prevent mis-plugging of the male connector (1) and the female connector (2).
7. The connector with a nested anti-mismating structure according to claim 6, characterized in that: One side of the protrusion (601) is formed with an arc, which guides the protrusion (601) to be inserted and adapted to the slot (602).