High-stability vehicle-mounted SMT connector
By using a snap-fit structure and guide design, the problem of poor connector stability in traditional SMT soldering is solved, resulting in a highly stable and low-cost automotive SMT connector that can adapt to complex environments and improve production efficiency and signal transmission reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI LAIMU ELECTRONICS
- Filing Date
- 2025-08-28
- Publication Date
- 2026-08-04
AI Technical Summary
Traditional SMT soldering processes involve complex molds, high costs, poor connector stability, difficulty in ensuring center of gravity stability, and the tendency for low-pin and high-pin issues to occur after soldering. Furthermore, the positional accuracy of male and female terminals is affected by many factors, and the assembly reference is easily changed.
The first and second plastic housings are connected by a snap-fit structure, with the snap-fit and guide components working together to ensure a secure connection. The upper and lower rows of terminals are installed in corresponding reserved channels, with the guide components and limiting grooves working together, and the guide strips and limiting grooves sliding together to enhance the stability and positioning accuracy of the connector.
It improves connector stability and production efficiency, reduces costs, reduces production steps, avoids low-pin and high-pin issues after soldering, and ensures the accuracy and stability of signal transmission.
Smart Images
Figure CN224595876U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of connector technology, and in particular to a high-stability automotive SMT connector. Background Technology
[0002] In the electronics manufacturing industry, SMT (Surface Mount Technology) soldering is a crucial process widely used in the production of various electronic products. With the rapid development of the automotive electronics industry, the demand for automotive connectors is increasing, and their stability and reliability have become key indicators of product quality. Highly stable automotive connectors ensure the stable operation of automotive electronic systems, reduce the probability of malfunctions, and thus improve the overall performance and safety of the vehicle. A well-designed connector structure can also adapt to the complex internal environment of the vehicle, such as high temperatures and vibrations, ensuring the accuracy and stability of signal transmission.
[0003] In traditional SMT soldering processes, the molds used are complex, which not only results in high manufacturing costs, but also in very high costs for replacement and repair once the molds are worn or damaged. In addition, the existing structure is difficult to guarantee the stability of the center of gravity during SMT soldering, which can easily lead to low pin and high pin problems after soldering. At the same time, when mating male and female terminals, there are many factors that affect the position of the mating terminals, and the assembly reference is easy to change, which makes it impossible to effectively guarantee the stability of the entire connector. Utility Model Content
[0004] To address the current issues of unstable SMT soldering, numerous production steps, high costs, and low efficiency, this application provides a highly stable automotive SMT connector.
[0005] This application provides a high-stability automotive SMT connector using the following technical solution: A high-stability automotive SMT connector includes a first plastic housing, a second plastic housing, an upper row of terminals, and a lower row of terminals. The first plastic housing and the second plastic housing are connected by a snap-fit structure. The upper row of terminals is installed in a first reserved channel formed by the first plastic housing and the second plastic housing, and the lower row of terminals is installed in a second reserved channel formed by the first plastic housing and the second plastic housing. The snap-fit structure includes a snap-fit element formed on the second plastic housing and a guide element formed on the first plastic housing. The snap-fit element and the first plastic housing are snap-fitted together, and the guide element and the second plastic housing are slidably engaged.
[0006] By adopting the above technical solution, the first and second plastic housings are connected by a snap-fit structure. The snap-fit component and the first plastic housing engage securely, enhancing the overall stability of the connector and meeting testing requirements. The guide component and the second plastic housing slide together, facilitating the connection between the first and second plastic housings during assembly, making the assembly process smoother and more accurate. Simultaneously, the upper row of terminals is installed in the first reserved channel formed by the first and second plastic housings, and the lower row of terminals is installed in the second reserved channel formed by the second plastic housing. This arrangement ensures accurate terminal positioning, making the product structure more stable in terms of center of gravity during SMT soldering, preventing low-pin and high-pin issues after soldering. When mating male and female terminals, there are fewer factors affecting the position of the mating terminals, and the assembly reference is not changed, resulting in greater stability. Furthermore, this structure offers advantages such as low cost, high efficiency, and ease of operation, while also reducing production steps, ensuring stable process quality, and improving product efficiency.
[0007] Optionally, the fastener includes a molded block integrally welded to the side of the second plastic housing, and a guide groove is provided on the inner side wall of the first plastic housing, wherein the molded block and the guide groove are engaged in a fastening fit.
[0008] By adopting the above technical solution, the snap-fit structure allows the first and second plastic housings to be tightly connected, making the connector more stable and meeting testing requirements. Simultaneously, this connection method utilizes guide grooves during assembly to provide guidance, ensuring the molding block can be smoothly inserted, making operation more convenient and contributing to improved product assembly efficiency and overall stability.
[0009] Optionally, the guide member includes a guide strip integrally formed on the inner sidewall of the first plastic housing, and a limiting groove adapted to the guide strip is provided on the second plastic housing, wherein the guide strip and the limiting groove are slidably engaged.
[0010] By adopting the above technical solution, a guiding role is played when the first plastic shell and the second plastic shell are connected, making the connection process smoother and more precise, ensuring that the two plastic shells are accurately aligned, and thus ensuring that the upper row of terminals and the lower row of terminals can be correctly installed in the corresponding reserved channels. This makes the entire automotive SMT connector structure more stable, improves the quality stability of the production process, and reduces production steps due to easier assembly, thereby increasing product production efficiency and reducing costs.
[0011] Optionally, a parallel block is integrally formed on the inner wall of the first plastic shell, and an installation slot adapted to the parallel block is formed on the outer surface of the second plastic shell.
[0012] By adopting the above technical solution, the first and second plastic housings can be accurately installed and positioned, ensuring the tightness and stability of their connection. This guarantees that the upper and lower terminals can be correctly installed in their respective channels, thereby ensuring the normal operation of the entire connector. Simultaneously, this adapter structure enhances the connection strength between the two plastic housings, reducing loosening or displacement caused by vibration or external forces, and improving the stability and reliability of the connector during use.
[0013] Optionally, multiple longitudinal channels are formed between adjacent parallel blocks, and multiple longitudinal gaps are formed on the outer surface of the second plastic housing. The upper row of terminals is arranged in parallel within the longitudinal gaps, and the lower row of terminals is arranged in parallel within the longitudinal channels.
[0014] By adopting the above technical solution, the upper and lower rows of terminals can be arranged in an orderly manner and separated from each other, avoiding problems such as mutual interference and poor contact between terminals, ensuring the stability and accuracy of signal transmission, and making reasonable use of internal space, which is conducive to realizing the miniaturization design of connectors.
[0015] Optionally, reinforcing columns are integrally formed on the side of the first plastic shell, and the reinforcing columns on both sides of the first plastic shell are staggered.
[0016] By adopting the above technical solution, the structural strength of the first plastic shell can be enhanced, and the stability of the entire connector can be improved. The staggered arrangement of the reinforcing columns on both sides of the first plastic shell can distribute the force more evenly, further optimize the stress distribution, reduce the risk of damage caused by excessive local stress, and ensure the stability and reliability of the connector during use.
[0017] Optionally, the cross-section of the second plastic shell is rectangular or trapezoidal.
[0018] By adopting the above technical solutions, we can adapt to different application scenarios and installation requirements, facilitate processing and installation, ensure good matching and docking with other components, and improve the overall assembly accuracy and stability.
[0019] Optionally, the upper row of terminals is bent and the lower row of terminals is C-shaped.
[0020] By adopting the above technical solution, the terminals can be better adapted to the reserved channels formed by the first and second plastic housings, the installation layout of the terminals is optimized, and the upper and lower rows of terminals are installed more securely in the corresponding channels.
[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. The first and second plastic housings are connected by a snap-fit structure, making the connector more stable and meeting testing requirements; 2. This structure provides greater stability in terms of the center of gravity during SMT soldering, preventing issues with low-pin and high-pin soldering after soldering; 3. This structure has fewer production steps and more stable process quality, which can improve product efficiency and reduce costs. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the overall structure shown in this application.
[0024] Figure 2 This is a cross-sectional view showing the overall structure of this application.
[0025] Figure 3 This application presents a schematic diagram showing the state of the upper and lower rows of terminals located on both sides of the second plastic housing forming a gap.
[0026] Figure 4 This application presents a structural schematic diagram illustrating the first plastic housing and the second plastic housing.
[0027] Figure 5 This is a structural schematic diagram of the second plastic shell, shown from another perspective in this application.
[0028] Reference numerals: 1. First plastic housing; 2. Second plastic housing; 3. Upper row of terminals; 4. Lower row of terminals; 5. Snap-fit structure; 6. First reserved channel; 7. Second reserved channel; 51. Snap-fit component; 52. Guide component; 511. Molding block; 512. Guide groove; 521. Guide strip; 522. Limiting groove; 8. Parallel block; 9. Mounting through groove; 10. Longitudinal partition; 11. Longitudinal gap; 12. Reinforcing column. Detailed Implementation
[0029] The following is in conjunction with the appendix Figure 1 To be continued Figure 5 This application will be described in further detail.
[0030] This application discloses a high-stability automotive SMT connector.
[0031] Reference Figure 1 , Figure 2 and Figure 3As shown, the connector includes a first plastic housing 1, a second plastic housing 2, an upper row of terminals 3, and a lower row of terminals 4. The first plastic housing 1 and the second plastic housing 2 are connected together by a snap-fit structure 5. This connection method avoids the problems of complex processes and high costs caused by environmental influences, making the connector structure more stable and easier and cheaper to produce. The upper row of terminals 3 is installed in the first reserved channel 6 formed by the first plastic housing 1 and the second plastic housing 2, and the lower row of terminals 4 is installed in the second reserved channel 7 formed by the first plastic housing 1 and the second plastic housing 2. This layout makes the center of gravity of the terminals more stable during SMT soldering, reducing low-pin and high-pin issues after soldering. At the same time, when mating male and female terminals, there are fewer factors affecting the position of the mating terminals, and the assembly reference does not need to be changed, ensuring the stability of the connector.
[0032] See Figure 4 and Figure 5 As shown, the snap-fit structure 5 includes a snap-fit element 51 formed on the second plastic shell 2 and a guide element 52 formed on the first plastic shell 1. The snap-fit element 51 includes a molded block 511 integrally welded to the side of the second plastic shell 2. The molded block 511 is integrally welded to the second plastic shell 2, resulting in high connection strength and preventing it from falling off. The molded block 511 can also be integrally molded on the second plastic shell 2, which can also ensure good connection stability. A guide groove 512 is provided on the inner side wall of the first plastic shell 1. The molded block 511 and the guide groove 512 snap-fit together, which can effectively fix the first plastic shell 1 and the second plastic shell 2 together. When the molded block 511 is engaged with the guide groove 512, it provides good limiting effect in both the horizontal and vertical directions, preventing relative displacement between the two shells.
[0033] See Figure 4 As shown, the guide component 52 includes a guide strip 521 integrally formed on the inner wall of the first plastic housing 1. The integral molding of the guide strip 521 ensures a firm connection with the first plastic housing 1, preventing easy loosening. The guide strip 521 can also be installed on the inner wall of the first plastic housing 1 via a subsequent inlay process. The second plastic housing 2 has a limiting groove 522 adapted to the guide strip 521, with the guide strip 521 and the limiting groove 522 slidingly engaged. During the installation of the first plastic housing 1 and the second plastic housing 2, the guide strip 521 can slide along the limiting groove 522, serving as a guide and positioning element, facilitating the accurate insertion of the molded block 511 into the guide groove 512, thus improving installation efficiency and accuracy.
[0034] See Figure 4As shown, the first plastic housing 1 and the second plastic housing 2 are connected by a combination of a snap fastener 51 and a guide 52. The guide 52 is first used for initial positioning through sliding engagement, and then the snap fastener 51 is used for final fastening. This ensures both the convenience of installation and the stability of the connection. Compared with traditional connection methods, the structure is more optimized and can better adapt to complex usage environments.
[0035] See Figure 4 As shown, parallel blocks 8 are integrally formed on the inner wall of the first plastic housing 1. The parallel blocks 8 are integrally formed with the first plastic housing 1, ensuring the integrity and strength of the structure. The outer surface of the second plastic housing 2 has mounting slots 9 that fit the parallel blocks 8. The parallel blocks 8 can be inserted into the mounting slots 9, further enhancing the connection stability between the first plastic housing 1 and the second plastic housing 2. Multiple longitudinal partitions 10 are formed between adjacent parallel blocks 8, and multiple longitudinal gaps 11 are formed on the outer surface of the second plastic housing 2. The upper row of terminals 3 are arranged parallel to each other within the longitudinal gaps 11, and the lower row of terminals 4 are arranged parallel to each other within the longitudinal partitions 10. This arrangement separates the upper row of terminals 3 and the lower row of terminals 4, avoiding mutual interference and facilitating terminal installation and maintenance.
[0036] See Figure 1 As shown, a reinforcing post 12 is integrally formed on the side of the first plastic housing 1. The reinforcing post 12 is integrally formed and tightly connected to the first plastic housing 1. The reinforcing posts 12 located on both sides of the first plastic housing 1 are staggered. This staggered arrangement can enhance the overall structural strength of the first plastic housing 1 and improve its resistance to external deformation. When the connector is subjected to external impact, the reinforcing post 12 can disperse the stress and reduce the possibility of the first plastic housing 1 cracking or deforming.
[0037] See Figure 5 As shown, the cross-section of the second plastic housing 2 is rectangular or trapezoidal. The rectangular cross-section of the second plastic housing 2 has a regular structure, which is convenient for processing and cooperation with other components. The trapezoidal cross-section of the second plastic housing 2 can better adapt to specific installation spaces and stress requirements in certain situations, and has stronger adaptability.
[0038] See Figure 2 and Figure 3 As shown, the upper row of terminals 3 is bent, which better adapts to the shape of the first reserved channel 6 and facilitates electrical connection with other components. The lower row of terminals 4 is C-shaped, which provides better elasticity and contact stability after being installed in the second reserved channel 7, ensuring stable transmission of electrical signals.
[0039] The implementation principle of a high-stability automotive SMT connector according to this application embodiment is as follows: the first plastic shell 1 and the second plastic shell 2 are connected by a snap-fit structure 5, which connects the upper row of terminals 3 and the lower row of terminals 4 together, solving the problems of poor stability, complex production process, and high cost of traditional connectors. The snap-fit structure 5 makes the connection between the first plastic shell 1 and the second plastic shell 2 more stable and reliable, convenient to install and lower in cost, ensuring the stability of SMT soldering and the accuracy of male and female mating terminals; the reinforcing pillars 12 and parallel blocks 8 further enhance the overall structural strength of the connector. Compared with traditional connectors, this embodiment reduces the number of production steps, makes the process quality more stable, improves product efficiency, reduces costs, and better meets the requirements of the automotive electronics industry for the stability and reliability of automotive connectors.
[0040] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A high-stability automotive SMT connector, characterized in that: It includes a first plastic housing (1), a second plastic housing (2), an upper row of terminals (3) and a lower row of terminals (4). The first plastic housing (1) and the second plastic housing (2) are connected by a snap-fit structure (5). The upper row of terminals (3) is installed in a first reserved channel (6) formed by the first plastic housing (1) and the second plastic housing (2). The lower row of terminals (4) is installed in a second reserved channel (7) formed by the first plastic housing (1) and the second plastic housing (2). The buckle structure (5) includes a buckle (51) formed on the second plastic shell (2) and a guide (52) formed on the first plastic shell (1). The buckle (51) and the first plastic shell (1) are buckled together, and the guide (52) and the second plastic shell (2) are slidably engaged.
2. The high-stability automotive SMT connector according to claim 1, characterized in that: The fastener (51) includes a molded block (511) integrally welded to the side of the second plastic shell (2), and a guide groove (512) is provided on the inner side wall of the first plastic shell (1). The molded block (511) and the guide groove (512) are engaged in a snap-fit relationship.
3. The high-stability automotive SMT connector according to claim 1, characterized in that: The guide member (52) includes a guide strip (521) integrally formed on the inner side wall of the first plastic housing (1), and a limiting groove (522) adapted to the guide strip (521) is provided on the second plastic housing (2), and the guide strip (521) and the limiting groove (522) are slidably engaged.
4. A high-stability automotive SMT connector according to claim 1, characterized in that: The inner wall of the first plastic shell (1) is integrally formed with a parallel block (8), and the outer surface of the second plastic shell (2) is provided with an installation through groove (9) that is compatible with the parallel block (8).
5. A high-stability automotive SMT connector according to claim 4, characterized in that: Multiple longitudinal channels (10) are formed between adjacent parallel blocks (8), and multiple longitudinal gaps (11) are formed on the outer surface of the second plastic housing (2). The upper row of terminals (3) are arranged in parallel within the longitudinal gaps, and the lower row of terminals (4) are arranged in parallel within the longitudinal channels (10).
6. A high-stability automotive SMT connector according to claim 1, characterized in that: The first plastic shell (1) has an integrally formed reinforcing column (12) on its side, and the reinforcing columns (12) on both sides of the first plastic shell (1) are staggered.
7. A high-stability automotive SMT connector according to claim 1, characterized in that: The cross-section of the second plastic shell (2) is rectangular or trapezoidal.
8. A high-stability automotive SMT connector according to claim 1, characterized in that: The upper row of terminals (3) is bent, and the lower row of terminals (4) is C-shaped.