Automobile 4P male connector with mistaken insertion prevention guide structure

Abstract

The utility model provides a kind of automobile 4P male connector with anti-misplug guiding structure, belong to connector technical field, including shell and terminal, shell side wall is fixedly connected with outer sleeve, outer sleeve end is fixedly connected with limit ring, shell end side wall is fixedly connected with guiding ring, guiding ring side wall is provided with positioning gap, the shell end middle is provided with through -hole structure;The terminal is inserted in the shell end through -hole center.The utility model has the beneficial effects that: through the positioning gap of guiding ring and female head matching structure, from physical level, eliminate reverse insertion or misplacement insertion, reduce artificial assembly failure probability, keep connector stable connection, the arc-shaped edge of limit ring avoids the scratch damage when plugging, limit excessive insertion simultaneously, protect the contact end of terminal and female head;Terminal and joint are connected by screw thread, it is convenient for the replacement of joint or the adjustment of wire harness, it is convenient and fast to complete the disassembly of connector.

Description

Technical Field

[0001] This utility model belongs to the field of connector technology, specifically relating to an automotive 4P male connector with an anti-misinsertion guide structure. Background Technology

[0002] With the accelerating pace of automotive electrification and intelligentization, automotive circuit systems have evolved from traditional single-function transmission to meet the demands of multiple scenarios and high reliability, including power control, chassis monitoring, body electronics, and intelligent driving assistance. As the "connection bridge" of automotive circuit systems, the 4P male connector, capable of synchronous transmission of four signals / currents, is widely used in connecting key components such as automotive sensors, controllers, and actuators. Its connection stability, ease of assembly, and anti-misfit performance directly affect the operational safety of automotive circuits and the overall reliability of the vehicle.

[0003] Traditional connectors often rely on operator experience to determine the mating direction, and some only employ simple symmetrical designs, lacking physical anti-misfit constraints. When a connector needs to mate with multiple female adapters, problems such as reverse mating and misaligned mating can easily occur. This can lead to poor terminal contact and signal interruption, and may even cause short circuits that burn out precision components such as sensors and ECUs, increasing production rework costs and the risk of vehicle malfunctions. Utility Model Content

[0004] The purpose of this invention is to provide an automotive 4P male connector with an anti-misinsertion guide structure, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A 4P male automotive connector with a mis-mating prevention guide structure includes a housing and terminals. The outer sleeve is fixedly connected to the side wall of the housing, the end of the outer sleeve is fixedly connected to a limit ring, the end side wall of the housing is fixedly connected to a guide ring, the side wall of the guide ring is provided with a positioning notch, and the middle of the end of the housing is provided with a through hole structure. The terminal is inserted into the center of the through hole at the end of the housing. A guide edge is provided on the middle side wall of the terminal. A beveled structure that cooperates with the guide edge is provided on the inner wall of the housing. The end of the guide edge is tightly inserted into the inner wall of the housing. A slot is provided on the middle side wall of the terminal. The inner wall of the housing is engaged with the inner side of the slot in the middle of the terminal.

[0006] In a preferred embodiment of this utility model, the terminal end is threaded with a connector, the connector end has a stepped edge, and the connector end extends to the outside of the housing.

[0007] As a preferred embodiment of this utility model, the terminal sidewall is provided with an anti-slip strip, the anti-slip strip is snapped into the inner wall of the housing, and the inner wall of the housing is provided with a limiting groove that cooperates with the anti-slip strip.

[0008] As a preferred embodiment of this utility model, the end of the housing is provided with a cavity, and the cavity at the end of the housing is sleeved on the outside of the end of the terminal.

[0009] In a preferred embodiment of this utility model, the sidewall of the limiting ring is an arc-shaped edge, and the end of the limiting ring extends to the end sidewall of the housing.

[0010] As a preferred embodiment of this utility model, an insert is fixedly connected to the inner side of the cavity at the end of the housing, and the side wall of the insert has an arc-shaped edge.

[0011] As a preferred embodiment of this utility model, the guide ring sidewall is provided with a chamfered edge, and the housing sidewall is provided with a chamfered edge that cooperates with the guide ring.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: by matching the positioning notch of the guide ring with the female head structure, reverse or misaligned mating is physically eliminated, reducing the probability of manual assembly errors and maintaining a stable connection between the terminal and the housing, and between the connector and the female head. The arc-shaped edge of the limiting ring avoids scratch damage during insertion and removal, while limiting excessive mating and protecting the contact end between the terminal and the female head. The terminal and the connector are connected by threads, which facilitates the replacement of the connector or the adjustment of the wire harness, and makes it convenient to quickly complete the disassembly and assembly of the connector. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the 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. Wherein: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view perspective three-dimensional structural diagram of the present invention; Figure 3 This is a front structural diagram of the present invention; Figure 4 This is a schematic diagram of the rear structure of the present invention; Figure 5 This is a schematic diagram of the internal connection structure of this utility model.

[0014] In the diagram: 100, housing; 101, outer sleeve; 102, limiting ring; 103, guide ring; 104, positioning notch; 105, insert; 200, terminal; 201, guide edge; 202, connector; 203, anti-slip strip. Detailed Implementation

[0015] To make the above-mentioned objectives, 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.

[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0017] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0018] Example Reference Figure 1-5 This embodiment of the present invention provides an automotive 4P male connector with an anti-mis-mating guide structure, including a housing 100 and terminals 200. The outer sleeve 101 is fixedly connected to the side wall of the housing 100. The end of the outer sleeve 101 is fixedly connected to the limit ring 102. The end side wall of the housing 100 is fixedly connected to the guide ring 103. The side wall of the guide ring 103 is provided with a positioning notch 104. The middle of the end of the housing 100 is provided with a through hole structure. Terminal 200 is inserted into the center of the through hole at the end of housing 100. A guide edge 201 is provided on the middle side wall of terminal 200. A bevel structure that cooperates with the guide edge 201 is provided on the inner wall of housing 100. The end of the guide edge 201 is tightly inserted into the inner wall of housing 100. A slot is provided on the middle side wall of terminal 200. The inner wall of housing 100 is engaged with the inner side of the slot in the middle of terminal 200.

[0019] Specifically, the terminal 200 is threaded to a connector 202, the connector 202 has a stepped edge at its end, the connector 202 extends to the outside of the housing 100, the side wall of the terminal 200 has an anti-slip strip 203, the anti-slip strip 203 is snapped into the inner wall of the housing 100, and the inner wall of the housing 100 has a limiting groove that works in conjunction with the anti-slip strip 203.

[0020] Furthermore, a cavity is provided at the end of the housing 100, and the cavity at the end of the housing 100 is sleeved on the outside of the end of the terminal 200. The side wall of the limiting ring 102 is arc-shaped, and the end of the limiting ring 102 extends to the side wall at the end of the housing 100. An insert 105 is fixedly connected to the inside of the cavity at the end of the housing 100. The side wall of the insert 105 is arc-shaped, the side wall of the guide ring 103 is chamfered, and the side wall of the housing 100 is chamfered to cooperate with the guide ring 103.

[0021] The housing 100 serves as the basic load-bearing component of the connector. An outer sleeve 101 is fixedly connected to the side wall of the housing 100. The outer sleeve 101 extends axially along the housing 100, providing lateral structural reinforcement for the housing 100 and forming an outer protective layer for the internal terminals 200. A limiting ring 102 is integrally fixedly connected to the end of the outer sleeve 101. The side wall of the limiting ring 102 is designed with an arc edge, and the end extends to the end side wall of the housing 100. The arc edge structure can prevent scratch damage during insertion and removal. At the same time, the limiting ring 102 can limit the insertion depth of the connector and the mating female head, preventing excessive insertion and removal from causing damage to the components. A guide ring 103 is integrally fixedly connected to the end side wall of the housing 100. The side wall of the guide ring 103 is machined with a chamfered edge, and a corresponding chamfered edge adapted to the guide ring 103 is opened on the side wall of the housing 100. The chamfered edge design can reduce the guiding resistance during insertion and removal and improve the smoothness of operation. The side wall of the guide ring 103 is also provided with a positioning notch 104. The positioning notch 104 and the protrusion structure of the mating female head form a unique matching relationship, which structurally prevents reverse or misaligned insertion and realizes the function of preventing misinsertion. In addition, a cavity is opened at the end of the housing 100, and an insert 105 is integrally fixedly connected to the inside of the cavity. The side wall of the insert 105 is machined with an arc edge. The arc edge can avoid scratching the terminal 200 or the female head component. At the same time, the insert 105 can fill the gap between the housing 100 and the terminal 200, improving the overall structural stability. The housing 100 has a through hole in the middle of its end, which provides a precise channel for the installation of the terminal 200. The inner wall of the housing is machined with a beveled structure that matches the guide edge 201 of the terminal 200. The beveled structure cooperates with the guide edge 201 to ensure that the terminal 200 is accurately inserted into the housing 100 in a preset direction. At the same time, the inner wall of the housing is also provided with a limiting groove that matches the anti-slip strip 203 of the terminal 200. The limiting groove and the anti-slip strip 203 engage to further limit the radial movement of the terminal 200 in the housing.

[0022] As a core component for current and signal transmission, terminal 200 has an integrally machined guide edge 201 on its middle sidewall. The guide edge 201 slides into the beveled structure of the inner wall of the housing, guiding the terminal 200 into the center of the through hole in the housing 100 in the correct direction. The end of the guide edge 201 fits tightly against the inner wall of the housing, reducing assembly gaps. A slot is also provided on the middle sidewall of terminal 200, with a corresponding position on the inner wall of the housing engaging with the slot to restrict axial movement of the terminal 200 within the housing, ensuring reliable fixation between the terminal and the housing. A connector 202 is threaded to the end of terminal 200. This threaded connection facilitates the disassembly, assembly, and maintenance of connector 202. The end of connector 202 has a stepped edge, which limits the connection depth between connector 202 and external wires. Simultaneously, the end of connector 202 extends to the outside of housing 100, facilitating precise docking with automotive wiring harnesses. The side wall of terminal 200 is integrally machined with anti-slip strip 203. The anti-slip strip 203 engages with the limiting groove on the inner wall of the housing to increase the friction between the terminal and the housing, prevent the terminal 200 from loosening due to vibration during vehicle operation, and improve connection stability.

[0023] When using the connector, when it needs to be connected to the automotive adapter female head, the operator performs initial positioning using the guide ring 103 at the end of the housing 100. The chamfered edge of the guide ring 103 reduces the insertion resistance. At the same time, the positioning notch 104 on the guide ring 103 must correspond to the protrusion on the female head. If the orientation is incorrect, the positioning notch 104 cannot match the female head protrusion, directly preventing mis-insertion and achieving mis-insertion guidance. At this time, the end of the limiting ring 102 contacts the female head housing, initially restricting the insertion position. With the positioning notch 104 matching the female head protrusion, the housing 100 is pushed to insert the terminal 200 into the female head socket. The guide edge 201 of the terminal 200 slides into the inclined structure of the inner wall of the housing, ensuring that the terminal 200 enters the center of the through hole of the housing 100 axially. At the same time, the anti-slip strip 203 of the terminal 200 gradually engages with the limiting groove of the inner wall of the housing 101, and the slot in the middle of the terminal 200 engages with the inner wall of the housing. The double fixing structure restricts the radial movement and axial movement of the terminal 200. In addition, the insert strip 105 in the cavity at the end of the housing 100 fits against the inner wall of the female head, filling the gap and assisting in positioning.

[0024] In summary, the positioning notch 104 of the guide ring 103 matches the female connector, physically preventing reverse or misaligned insertion and reducing the probability of manual assembly errors. The guide edge 201 of the terminal 200 cooperates with the beveled edge of the inner wall of the housing to achieve precise positioning. The anti-slip strip 203 engages with the housing limiting groove, and the groove engages with the inner wall of the housing to form a double fixation, maintaining a stable connection between the terminal and the housing, and between the connector and the female connector. The arc-shaped edge of the limiting ring 102 prevents scratch damage during insertion and removal, while limiting excessive insertion and protecting the contact end of the terminal and the female connector. The arc-shaped edge of the insertion strip 105 prevents scratching the terminal or female connector. The chamfered edges of the housing and the guide ring reduce insertion and removal resistance and reduce component wear. The terminal 200 and the connector 202 are connected by threads, which facilitates the replacement of the connector or the adjustment of the wiring harness, and makes it easy to quickly complete the assembly and disassembly of the connector.

[0025] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0026] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0027] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0028] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A 4P male automotive connector with a mis-mating prevention guide structure, characterized in that: Includes housing (100) and terminals (200). The outer sleeve (101) is fixedly connected to the side wall of the housing (100), the end of the outer sleeve (101) is fixedly connected to the limit ring (102), the end side wall of the housing (100) is fixedly connected to the guide ring (103), the side wall of the guide ring (103) is provided with a positioning notch (104), and the middle of the end of the housing (100) is provided with a through hole structure. The terminal (200) is inserted into the center of the end through hole of the housing (100). A guide edge (201) is provided on the middle side wall of the terminal (200). A bevel structure that cooperates with the guide edge (201) is provided on the inner wall of the housing (100). The end of the guide edge (201) is tightly inserted into the inner wall of the housing (100). A slot is provided on the middle side wall of the terminal (200). The inner wall of the housing (100) is engaged with the inner side of the slot in the middle of the terminal (200).

2. The automotive 4P male connector with anti-misinsertion guide structure according to claim 1, characterized in that: The terminal (200) is threaded to a connector (202), the connector (202) has a stepped edge at its end, and the connector (202) extends to the outside of the housing (100).

3. The automotive 4P male connector with anti-mis-mating guide structure according to claim 2, characterized in that: The terminal (200) has an anti-slip strip (203) on its side wall. The anti-slip strip (203) is snapped into the inner wall of the housing (100), and the inner wall of the housing (100) has a limiting groove that works in conjunction with the anti-slip strip (203).

4. The automotive 4P male connector with anti-misinsertion guide structure according to claim 3, characterized in that: The housing (100) has a cavity at one end, and the cavity at the end of the housing (100) is fitted onto the outside of the end of the terminal (200).

5. The automotive 4P male connector with anti-mis-mating guide structure according to claim 4, characterized in that: The sidewall of the limiting ring (102) is arc-shaped, and the end of the limiting ring (102) extends to the end sidewall of the housing (100).

6. The automotive 4P male connector with anti-mis-mating guide structure according to claim 5, characterized in that: An insert (105) is fixedly connected to the inner side of the cavity at the end of the housing (100), and the side wall of the insert (105) has an arc-shaped edge.

7. The automotive 4P male connector with anti-mis-mating guide structure according to claim 6, characterized in that: The guide ring (103) has a chamfered edge on its side wall, and the housing (100) has a chamfered edge on its side wall that works in conjunction with the guide ring (103).

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