Low-voltage waterproof male connector for automobile

Abstract

The utility model discloses a low-voltage waterproof male connector for an automobile, which comprises a shell (1) and a terminal seat (2), the shell (1) is provided with an installation cavity, the terminal seat (2) is provided with a plurality of terminal holes (21), the plurality of terminal holes (21) are communicated with the installation cavity of the shell (1), the outer side of the shell (1) is provided with a stop structure (3) which is opposite to the insertion direction of the shell (1), and the stop structure (3) is provided with a waterproof structure (4). An asymmetric mistake-proof structure (4) is arranged on the inner side wall of the mounting cavity, a convex rib structure (5) is arranged at the bottom of the mounting cavity, a sealing gasket (6) is placed on the convex rib structure (5), and the sealing gasket (6) is fixedly connected with the bottom of the mounting cavity. Through the above mode, the anti-seismic performance can be improved, the size of the connector can be reduced, the installation space in a vehicle can be reduced, the risk that the terminals fall off in the material flow process can be reduced, the die and production cost can be reduced, and the connector can be suitable for mass production.

Description

Technical Field

[0001] This utility model relates to the field of automotive connector technology, and in particular to a low-voltage waterproof male connector for automobiles. Background Technology

[0002] With the rapid development of the automotive industry and the increasing level of automotive electronics, electronic devices are being used more and more widely in automobiles. As a key component connecting electronic devices, automotive connectors directly affect the reliability and stability of automotive electronic systems. During automotive use, connectors must withstand various harsh environments, such as temperature changes, humidity, and vibration, while also ensuring stable signal and power transmission. Therefore, developing automotive connectors that are waterproof, provide stable current conduction, are error-proof, shock-resistant, and easy to install has become particularly important.

[0003] Current connector technology typically uses sheet metal interfaces for connector mounting. However, connector manufacturers using this mounting method often fail to consider the connector's vibration resistance, causing excessive vibration during vehicle operation. This leads to excessive friction between the connector terminals, ultimately resulting in circuit failure. Furthermore, current technology does not consider the reliability of connector mating, frequently resulting in mis-mating during connection, causing connector damage and ultimately preventing circuit continuity.

[0004] The disadvantages of existing technologies are as follows:

[0005] 1. Existing technologies have complex structures, and both mold and production costs are relatively high, making them unsuitable for mass production.

[0006] 2. Existing technology has poor shock resistance, and will shake after being installed on the vehicle body, eventually producing abnormal noise;

[0007] 3. Existing technology lacks error-proofing features, posing a risk of reverse assembly during the fitting process;

[0008] 4. The mating area of ​​the male and female connector cavities in the existing technology is large, which makes the manufacturing cost of the connector too high. In addition, due to the severe deformation of the connector cavity during the production process, it is often difficult for the male and female connectors to be mated.

[0009] 5. Existing connectors are too large, which takes up a lot of space when installed in vehicles, which is not conducive to the current trend of modularization and miniaturization in the automotive industry.

[0010] 6. Existing waterproof structures are complex, with the plastic shell and gasket being independent. The gasket is installed only after the terminals are installed, resulting in a complex assembly process. Furthermore, the terminals are easily damaged during assembly, and the gasket is not easy to install properly.

[0011] 7. Existing technology lacks a guiding structure, resulting in a relatively large insertion force between the terminals and the connector;

[0012] 8. The existing structure has a low holding force between the terminals and the sheath, and the terminals are prone to falling off during material handling. Utility Model Content

[0013] The main technical problem solved by this utility model is to provide a low-voltage waterproof male connector for automobiles, which can improve shock resistance, reduce the size of the connector, reduce the installation space in the vehicle, reduce the risk of terminals falling off during material flow, reduce mold and production costs, and can adapt to mass production.

[0014] To solve the above-mentioned technical problems, the present invention provides a low-voltage waterproof male connector for automobiles, comprising a housing and a terminal block. The housing is disposed in a mounting cavity, and the terminal block is provided with a plurality of terminal holes, which are connected to the mounting cavity of the housing. The outer side of the housing is provided with a stop structure opposite to its insertion direction. The inner sidewall of the mounting cavity is provided with an asymmetrical anti-misalignment structure. The bottom of the mounting cavity is provided with a rib structure, and a sealing gasket is placed on the rib structure. The sealing gasket is fixedly connected to the bottom of the mounting cavity.

[0015] The left and right sides of the housing are symmetrically provided with a stop structure. The stop structure includes front and rear outer side walls extending along the front and rear sides of the housing. The stop structure also includes a connecting arm located in the middle of the front and rear outer side walls and extending along the bottom of the housing. The connecting arm is provided with an elastic clamping member that is perpendicular to it.

[0016] The elastic clamping component includes an elastic plate connected to the connecting arm, and a wedge-shaped locking block is provided on the outer side of the elastic plate, with the plane of the wedge-shaped locking block facing the terminal block.

[0017] The error-proof structure includes multiple limiting grooves, which are asymmetrically arranged on at least two inner sidewalls of the mounting cavity.

[0018] The rib structure is composed of multiple ribs, which avoid the connection between the terminal hole and the connecting hole at the bottom of the housing.

[0019] The sealing gasket is provided with multiple snap-fit ​​structures, and the bottom of the housing is provided with multiple limiting holes corresponding to the snap-fit ​​structures. The snap-fit ​​structures are embedded in the limiting holes to fix the sealing gasket to the housing.

[0020] The sealing gasket has an opening at the position corresponding to the connecting hole.

[0021] The terminal hole is provided with a locking structure protruding from the inner wall of the terminal hole, which is used to lock the terminal after it is inserted into the terminal hole.

[0022] A stop block is provided at the connection between the terminal hole and the bottom of the housing.

[0023] The upper periphery of the terminal block is provided with a snap-fit ​​structure, which includes multiple snap-fit ​​seats. Each snap-fit ​​seat is a wedge-shaped block, and the flat bottom end of the snap-fit ​​seat faces the housing.

[0024] The beneficial effects of this utility model of a low-voltage waterproof male connector for automobiles are:

[0025] 1. Reduces mold and production costs, enabling mass production;

[0026] 2. Improve the product's shock resistance so that the male connector will not produce abnormal noise after being installed on the vehicle body;

[0027] 3. Resolve the risks of reverse insertion and incorrect insertion during the product matching process;

[0028] 4. Reduce the mating area between the male and female connectors, lower production process costs, reduce deformation of the male connector cavity, and reduce the engagement force between the male and female connectors;

[0029] 5. Reduce the size of the male connector to decrease the installation space required in the vehicle;

[0030] 6. The waterproof structure design is simplified, and the sealing gasket is pre-assembled with the housing using a snap-fit ​​structure, reducing secondary damage to the terminals during assembly;

[0031] 7. Reduce the insertion force of the terminals relative to the male connector;

[0032] 8. Increase the holding force of the terminals relative to the housing to reduce the risk of terminals falling off during material flow. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of a low-voltage waterproof male connector for automobiles according to this utility model;

[0034] Figure 2 This is a schematic diagram of the stop structure of a low-pressure waterproof male connector for automobiles according to this utility model;

[0035] Figure 3 This is a schematic diagram of the terminal block structure of a low-voltage waterproof male connector for automobiles according to this utility model;

[0036] Figure 4 This is a front view of a low-pressure waterproof male connector for automobiles according to this utility model;

[0037] Figure 5 yes Figure 4 A sectional view;

[0038] Figure 6 yes Figure 4 Top view;

[0039] Figure 7 yes Figure 4 A bottom view;

[0040] Figure 8 This is a schematic diagram of the rib structure of a low-pressure waterproof male connector for automobiles according to this utility model.

[0041] Figure 9 This is a schematic diagram of the sealing gasket structure of a low-pressure waterproof male connector for automobiles according to this utility model. Detailed Implementation

[0042] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0043] Please see Figures 1-9 The embodiments of this utility model include:

[0044] This utility model discloses a low-voltage waterproof male connector for automobiles, comprising a housing 1 and a terminal block 2. The housing 1 is disposed in an installation cavity, and the terminal block 2 is provided with multiple terminal holes 21, which communicate with the installation cavity of the housing 1. A stop structure 3 is provided on the outer side of the housing 1 in the opposite direction to its insertion direction. An asymmetrical anti-misalignment structure 4 is provided on the inner wall of the installation cavity. A raised rib structure 5 is provided at the bottom of the installation cavity, and a sealing gasket 6 is placed on the raised rib structure 5, which is fixedly connected to the bottom of the installation cavity. In practical implementation, after the male connector of this application is installed into the body panel interface, because the stop direction of the stop structure is opposite to the direction in which the housing is inserted into the body panel interface, the male connector is prevented from shifting forward, making the assembly of the male connector and the body panel interface more secure and reliable, thereby solving the problem of abnormal noise that easily occurs after the male connector is assembled with the body.

[0045] The left and right side ends of the housing 1 are symmetrically provided with stop structures 3. Each stop structure 3 includes front and rear outer side walls 11 and 12 extending along the front and rear sides of the housing 1. The stop structure 3 also includes a connecting arm 33 located between the front and rear outer side walls 11 and 12 and extending along the bottom end of the housing. An elastic clamping member 34 is provided perpendicularly to the connecting arm 33. The elastic clamping member 34 includes an elastic plate 341 connected to the connecting arm 33. A wedge-shaped locking block 342 is provided on the outer side of the elastic plate 341, with the plane of the wedge-shaped locking block 342 facing the terminal block 2. In a specific implementation of this application, the arrangement of the elastic clamping member and the connecting arm allows the end of the elastic clamping member to generate a certain deformation force when subjected to force, which, in conjunction with the front and rear side walls, makes the clamping of the male connector more secure and reliable.

[0046] The error-proof structure 4 includes multiple limiting grooves 43, which are asymmetrically arranged on at least two inner sidewalls of the mounting cavity. In a specific implementation of this application, three limiting grooves are provided, two of which are located on the left sidewall and the other on the right sidewall, so that the mating female connector and male connector will not be installed backwards or incorrectly.

[0047] The rib structure 5 consists of multiple ribs, which avoid the connection between the terminal hole 21 and the communication hole at the bottom of the housing 1. In this application, the ribs ensure that when the male connector and female connector are mated, the ribs inside the mounting cavity contact the surface of the sealing gasket, thereby making the sealing contact more reliable.

[0048] The sealing gasket 6 is provided with multiple snap-fit ​​structures 61, and the bottom of the housing 1 is provided with multiple limiting holes 13 corresponding to the snap-fit ​​structures 61. The snap-fit ​​structures 61 are embedded in the limiting holes 13 to fix the sealing gasket 6 to the housing 1. The sealing gasket of this application is made of silicone material, which makes it highly elastic. The rib structure on the male connector of this application cooperates with the sealing gasket. After the male connector and the female connector are engaged, the sealing gasket is compressed under the action of clamping force, thereby achieving the purpose of sealing. The snap-fit ​​structure on the sealing gasket allows it to be firmly assembled with the male connector before the terminal is inserted, thereby reducing the damage to the terminal and the sealing gasket caused by subsequent assembly processes.

[0049] The sealing gasket 6 has an opening at the position corresponding to the connecting hole.

[0050] A locking structure 22 protruding from the inner wall of the terminal hole 21 is provided inside the terminal hole 21 to secure the terminal after it is inserted into the terminal hole 21. In a specific implementation of this application, at least one guide strip protruding from the inner wall of the terminal hole is also provided inside the terminal hole. The upper end of the guide strip is provided with a downwardly inclined guide surface towards the housing. Preferably, multiple guide strips can be provided, evenly distributed on the inner wall of the terminal hole. The locking structure is a locking block provided on the inner wall of the terminal hole. The upper end of the locking block is provided with a downwardly inclined surface towards the housing, and the lower end of the locking block is a flat end, which is used to provide sufficient holding force after the terminal is inserted into the terminal hole to ensure that it will not fall off during material flow. More preferably, the locking block and the guide strip are combined in this application, and a flat end is provided at the lower part of the guide slope of the guide strip for securing the terminal inserted into the terminal hole.

[0051] A stop block 23 is provided at the connection between the terminal hole 21 and the bottom of the housing 1. The stop block effectively prevents the terminal from moving forward. Multiple stop blocks are provided, and a gap communicating with the mounting cavity is left between the multiple stop blocks. The multiple stop blocks limit the position of the terminal inserted into the terminal hole, effectively preventing the terminal from moving towards the housing.

[0052] The terminal block 2 has a snap-fit ​​structure on its upper periphery, which includes multiple snap-fit ​​seats 24. Each snap-fit ​​seat 24 is a wedge-shaped block, with its flat bottom end facing the housing 1. In a specific implementation of this application, four snap-fit ​​seats are provided, respectively located on the upper part of the four sides of the terminal block, for fixing the wire cover, thereby fixing the wire and ensuring that the wire remains sufficiently stable during vehicle operation, preventing swaying.

[0053] The outer and inner edges of the housing, terminal block, front and rear outer side walls 11 and 12, elastic clamping member 34, and card holder 24 of the present application for a low-voltage waterproof male connector for automobiles are all rounded to effectively prevent scratches and cuts to personnel during installation and use.

[0054] This application discloses a low-voltage waterproof male connector for automobiles, which greatly improves assembly efficiency during production by designing the sealing gasket and housing as an integrated assembly structure, and reduces additional damage to the terminals and sealing gaskets.

[0055] This application discloses a low-voltage waterproof male connector for automobiles. Through a guiding design inside the terminal hole, the insertion force between the terminal and the terminal hole is reduced, resulting in higher assembly efficiency and reduced labor intensity for production workers.

[0056] This application discloses a low-voltage waterproof male connector for automobiles. By designing an anti-misfit structure inside the mounting cavity, it effectively prevents the impact of incorrect or reverse installation when the male and female connectors are mated, greatly reducing the probability of rework and repair, lowering production costs, and improving assembly efficiency.

[0057] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A low-voltage waterproof male connector for automobiles, characterized in that, The device includes a housing (1) and a terminal block (2). The housing (1) has a mounting cavity, and the terminal block (2) has multiple terminal holes (21). The multiple terminal holes (21) are connected to the mounting cavity of the housing (1). The outer side of the housing (1) is provided with a stop structure (3) opposite to its insertion direction. The inner sidewall of the mounting cavity is provided with an asymmetrical anti-misalignment structure (4). The bottom of the mounting cavity is provided with a rib structure (5), and a sealing gasket (6) is placed on the rib structure (5). The sealing gasket (6) is fixedly connected to the bottom of the mounting cavity.

2. The low-voltage waterproof male connector for automobiles according to claim 1, characterized in that, The left and right sides of the housing (1) are symmetrically provided with a stop structure (3). The stop structure (3) includes front and rear outer side walls (11) and (12) extending along the front and rear sides of the housing (1). The stop structure (3) also includes a connecting arm (33) located between the front and rear outer side walls (11) and (12) and extending along the bottom of the housing. The connecting arm (33) is provided with an elastic clamping member (34) perpendicular to it.

3. The low-voltage waterproof male connector for automobiles according to claim 2, characterized in that, The elastic clamp (34) includes an elastic plate (341) connected to the connecting arm (33), and a wedge-shaped block (342) is provided on the outer side of the elastic plate (341), with the plane of the wedge-shaped block (342) facing the terminal block (2).

4. The low-voltage waterproof male connector for automobiles according to claim 1, characterized in that, The error prevention structure (4) includes multiple limiting grooves (43), which are asymmetrically arranged on at least two inner sidewalls of the mounting cavity.

5. The low-voltage waterproof male connector for automobiles according to claim 1, characterized in that, The rib structure (5) is composed of multiple ribs, and the multiple ribs avoid the terminal hole (21) and the communication hole at the bottom of the housing (1).

6. A low-voltage waterproof male connector for automobiles according to claim 5, characterized in that, The sealing gasket (6) is provided with a plurality of snap-fit ​​structures (61), and the bottom of the housing (1) is provided with a plurality of limiting holes (13) corresponding to the snap-fit ​​structures (61). The snap-fit ​​structures (61) are embedded in the limiting holes (13) to fix the sealing gasket (6) to the housing (1).

7. A low-voltage waterproof male connector for automobiles according to claim 6, characterized in that, The sealing gasket (6) has an opening at the position corresponding to the connecting hole.

8. The low-voltage waterproof male connector for automobiles according to claim 1, characterized in that, A locking structure (22) protruding from the inner wall of the terminal hole (21) is provided inside the terminal hole (21) to lock the terminal after it is inserted into the terminal hole (21).

9. A low-voltage waterproof male connector for automobiles according to claim 1, characterized in that, A stop block (23) is provided at the connection between the terminal hole (21) and the bottom of the housing (1).

10. A low-voltage waterproof male connector for automobiles according to claim 1, characterized in that, The terminal block (2) is provided with a snap-fit ​​structure on the upper periphery. The snap-fit ​​structure includes multiple snap-fit ​​seats (24). Each snap-fit ​​seat (24) is a wedge-shaped block, and the flat bottom end of the snap-fit ​​seat (24) faces the housing (1).

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