High reliability rj45 connector based on patch welding

Abstract

This utility model relates to a high-reliability RJ45 connector based on surface mount soldering, comprising a housing, a circuit board, RJ45 contacts, and a surface mount base. The circuit board is inserted into the housing from one end of the internal wire interface. The RJ45 contacts are mounted on the housing's Ethernet interface end and plugged into the circuit board. The circuit board has several surface mount pads, and the surface mount base has surface mount pins corresponding to the surface mount pads. The surface mount pins are connected to the surface mount pads via reflow soldering to form a wiring socket on the circuit board. This utility model adds a surface mount base to the RJ45 connector circuit board, enabling the surface mount base to be soldered and fixed to the circuit board using a reflow soldering process. This allows for precise control of the soldering temperature profile and time, eliminating the risk of cold solder joints and false solder joints caused by improper manual operation, and significantly improving product quality. This utility model simplifies the cable connection process by using the surface mount base to pre-form a fixed wiring socket, greatly reducing the time for soldering each wire individually and significantly improving overall production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of connectors, specifically to a high-reliability RJ45 connector based on patch soldering. Background Technology

[0002] In the field of network communication, RJ45 products, as common Ethernet interface connectors, are widely used in various network devices. Currently, most RJ45 products on the market are manufactured using a direct wire soldering method on the PCB board. This traditional process relies on manual operation, requiring operators to solder each cable to a designated location on the PCB board. The process is cumbersome and demands a high level of worker skill. Because the soldering process is easily affected by factors such as operator skill level, soldering temperature, and time, defects such as cold solder joints and false solder joints frequently occur during production, seriously affecting product quality stability and electrical performance.

[0003] With the continuous growth of demand in the network equipment market, large-scale industrial production has placed higher demands on the production efficiency of RJ45 products. Direct wire bonding is not only inefficient, with long soldering times for individual products, making it difficult to meet the needs of mass production, but also results in inconsistent product quality due to manual operation. This leads to varying performance across different batches, increasing the difficulty of production management and quality inspection, and reducing the company's production efficiency and market competitiveness. Utility Model Content

[0004] This invention proposes a high-reliability RJ45 connector based on surface mount soldering. By using the surface mount pins of the surface mount base to connect to the surface mount pads of the circuit board via reflow soldering, and in conjunction with the pre-formed fixed wiring sockets of the surface mount base, the potential risks of poor soldering and false soldering are fundamentally eliminated, and the assembly process is simplified.

[0005] The technical solution of this utility model is as follows:

[0006] A high-reliability RJ45 connector based on surface mount soldering includes a housing, a circuit board, and RJ45 contacts. One end of the housing is an Ethernet interface, and the other end is an internal wire interface. The circuit board is inserted into the housing from one end of the internal wire interface. The RJ45 contacts are mounted on one end of the Ethernet interface and plugged into the circuit board. The connector also includes a surface mount base. The side of the circuit board facing the internal wire interface has several surface mount pads. The surface mount base has surface mount pins corresponding to the surface mount pads. The surface mount pins are connected to the surface mount pads by reflow soldering to form a wiring socket on the circuit board.

[0007] As a preferred technical solution of this utility model, one end of the Ethernet interface of the housing is provided with a slot for adapting to the male RJ45 connector, and the RJ45 contact is provided inside the slot.

[0008] As a preferred embodiment of this utility model, the outer peripheral surface of the Ethernet interface end of the housing is provided with an external thread, and a nut is connected to the external thread; a washer is also provided at the Ethernet interface end of the housing, and the washer is located on the side of the nut close to the internal wire interface.

[0009] Furthermore, the nut is a plastic nut.

[0010] As a preferred technical solution of this utility model, one end of the internal wire interface of the housing is a cylindrical groove, and a recessed platform is provided inside the cylindrical groove, on which the circular circuit board is mounted.

[0011] Furthermore, the bottom of the side wall of the sinking platform is provided with several snap-fit ​​posts, and the edge of the circuit board is fixed to the sinking platform through the snap-fit ​​posts.

[0012] Furthermore, the platform is provided with a platform through hole, which is connected to one end of the Ethernet interface of the outer shell.

[0013] As a preferred technical solution of this utility model, the outer shell is integrally injection molded.

[0014] As a preferred embodiment of the present invention, the RJ45 contact includes a conductive body with eight elastic pins, and grounding plates located on both sides of the conductive body.

[0015] Furthermore, the circuit board is provided with plug-in holes, including eight signal plug-in holes and two ground plug-in holes, and the eight elastic contacts are plugged into the eight signal plug-in holes one by one; the grounding plates on both sides are plugged into the two ground plug-in holes one by one.

[0016] The advantages of this utility model based on the above solution are as follows:

[0017] This utility model adds a surface mount base to the RJ45 connector circuit board, enabling the surface mount base to be soldered and fixed to the circuit board using a reflow soldering process. This allows for precise control of the soldering temperature profile and time, ensuring uniform solder wetting and fundamentally eliminating the risk of cold solder joints or false solder joints caused by improper manual operation, thus significantly improving the stability of product quality. By forming a fixed wiring socket on the circuit board using the surface mount base, the cable connection process can be simplified, greatly reducing the time for soldering each wire individually and significantly improving overall production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0020] Figure 3 This is an exploded view of the structure of this utility model.

[0021] In the diagram,

[0022] 1. Housing; 11. Ethernet interface; 111. External thread; 12. Internal cable interface; 121. Recessed platform; 122. Snap-fit ​​post;

[0023] 2. Circuit board; 21. Surface mount pads; 22. Signal connectors; 23. Ground connectors;

[0024] 3. RJ45 contact; 31. Flexible contact foot; 32. Grounding plate;

[0025] 4. Surface mount socket; 41. Surface mount pins;

[0026] 5. Nuts;

[0027] 6. Gaskets. Detailed Implementation

[0028] To better understand the purpose, technical solution, and technical effects of this utility model, the following description, in conjunction with the accompanying drawings and embodiments, will provide further explanation. It should be noted that similar reference numerals and letters in the following drawings indicate similar items; therefore, once an item is defined in one drawing, it does not need further definition and explanation in subsequent drawings. It is also stated that the embodiments described below are only for explaining this utility model and are not intended to limit it.

[0029] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is referred to as "connected to" another component, it can be directly connected to the other component or there may be an intermediate component.

[0030] The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product is usually placed when in use, or the orientation or positional relationship in which a person skilled in the art would normally understand it, or the orientation or positional relationship in which the product is usually placed when in use. It is only for the purpose of facilitating the description of this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0031] like Figures 1 to 3As shown, a high-reliability RJ45 connector based on surface mount soldering includes a housing 1, a circuit board 2, RJ45 contacts 3, and a surface mount socket 4. One end of the housing 1 is an Ethernet interface 11, and the other end is an internal wire interface 12. The circuit board 2 is inserted into the housing 1 from the internal wire interface 12 end. The RJ45 contacts 3 are installed at the Ethernet interface 11 end of the housing 1 and plugged into the circuit board 2. The side of the circuit board 2 facing the internal wire interface has several surface mount pads 21. The surface mount socket 4 has surface mount pins 41 corresponding to the surface mount pads 21. The surface mount pins 41 are connected to the surface mount pads 21 by reflow soldering to form a wiring socket on the circuit board 2.

[0032] This utility model's RJ45 connector incorporates a surface mount base 4. Through reflow soldering, the surface mount pins 41 of the base 4 connect to the surface mount pads 21 of the circuit board 2, significantly improving product quality and production efficiency. During the soldering process, reflow soldering, as an automated process, precisely controls the temperature profile, ensuring the solder changes according to a set program during preheating, isothermal, reflow, and cooling stages. Compared to traditional manual soldering, which is susceptible to operator skill and environmental factors, the standardized reflow soldering process effectively avoids issues like cold solder joints and false solder joints, ensuring reliable electrical connections. Simultaneously, the surface mount base 4 pre-forms a fixed wiring socket on the circuit board 2 through reflow soldering, eliminating the cumbersome assembly process of soldering each wire individually in traditional RJ45 products. Subsequent cable connections simply require inserting the corresponding cable into this socket, significantly reducing the soldering and assembly time for individual products, achieving high efficiency in mass production, greatly improving overall production efficiency, and meeting the needs of modern large-scale industrial production.

[0033] In this utility model, one end of the Ethernet interface 11 of the housing 1 is provided with a slot for adapting to the male RJ45 connector. The slot is designed precisely according to the size and shape of the male RJ45 connector (the external crystal head), so that the male RJ45 connector can be inserted into the slot tightly and smoothly, avoiding problems such as loosening and poor contact caused by interface mismatch.

[0034] The RJ45 contact 3 inside the slot includes a conductive body and grounding plates 32 located on both sides of the conductive body. The conductive body has eight elastic contacts 31. The circuit board 2 has insertion holes 22, including eight signal insertion holes and two grounding insertion holes. The eight elastic contacts 31 are inserted into the eight signal insertion holes one by one, and the grounding plates 32 on both sides are inserted into the two grounding insertion holes one by one. The elastic contacts 31 can adapt to a certain range of tolerances to ensure stable contact pressure and reduce poor contact caused by vibration, insertion and removal wear, etc., thus ensuring the continuity of Ethernet signal transmission. The grounding plates 32 on both sides are connected to the grounding layer of the circuit board 2 through large-area metal contacts, which can quickly conduct away stray currents generated by static electricity and electromagnetic interference, reducing crosstalk and electromagnetic radiation interference during signal transmission.

[0035] In this invention, the outer shell 1 is integrally injection molded, forming it in one step using a mold, resulting in a continuous and uniform overall structure that enhances its mechanical strength and impact resistance. The outer circumferential surface of one end of the Ethernet interface 11 of the outer shell 1 is provided with an external thread 111, which is connected to a nut 5. A washer is also provided at one end of the Ethernet interface 11 of the outer shell 1, located on the side of the nut 5 closest to the internal cable interface 12. The mating design of the external thread 111 and the nut 5 provides a reliable installation and fixing method for the connector. When the connector needs to be installed on a device panel or other mounting location, the tightening force of the nut 5 ensures a tight fit between the connector and the mounting location, preventing loosening or displacement due to vibration, external pulling, or other factors during use, thus guaranteeing the stability and reliability of the connection. The washer fills any gaps that may exist between the nut 5 and the outer shell 1, providing a seal and blocking external contaminants such as dust and moisture, meeting the IP67 requirement after the socket is assembled into a chassis.

[0036] In a preferred embodiment, the nut 5 is a plastic nut. Plastic nuts inherently possess excellent insulation properties, effectively isolating potential external static electricity, stray currents, etc., compared to metal nuts. This prevents electromagnetic interference to the electronic components on the circuit board 2 and the signals transmitted through the RJ45 contacts 3, ensuring the purity and stability of data signals. Furthermore, the plastic nut has a high surface friction, eliminating the need for additional tools during installation; tightening and loosening the nut 5 can be done manually, making the operation more convenient and effectively improving assembly efficiency.

[0037] In this utility model, one end of the internal wire interface 12 of the outer shell 1 is a cylindrical groove, and a recessed platform 121 is provided inside the cylindrical groove. The circular circuit board 2 is installed on the recessed platform 121, so that the circular circuit board 2 can be tightly embedded in the recessed platform 121. The fit between the two restricts the displacement of the circuit board 2 in the horizontal direction, ensuring that the position of the circuit board 2 inside the outer shell 1 is fixed.

[0038] The bottom sidewall of the recessed platform 121 is provided with several locking posts 122, and the edge of the circuit board 2 is fixed to the recessed platform 121 by the locking posts 122. The locking posts 122 further enhance the fixing effect of the circuit board 2. The cooperation between the locking posts 122 and the edge of the circuit board 2 greatly improves the reliability of the circuit board 2 installation and effectively protects the circuit and components.

[0039] The recessed platform 121 is provided with a recessed platform through hole, which connects to one end of the Ethernet interface 11 of the housing 1, thus creating a channel for electrical connection and signal transmission. The RJ45 contact 3 at one end of the Ethernet interface 11 can be electrically connected to the circuit board 2 through the recessed platform through hole, which shortens the layout of the electrical connection path and optimizes the internal electrical connection structure.

[0040] In summary, this utility model's high-reliability RJ45 connector based on surface mount soldering connects the surface mount pins of the mount base to the surface mount pads on the circuit board via reflow soldering. An automated temperature-controlled process eliminates the risk of cold solder joints and false soldering. Furthermore, the mount base molds the wiring connector onto the circuit board, transforming tedious manual soldering into convenient cable insertion, significantly improving production efficiency and product quality stability. Structurally, the one-piece injection-molded shell, combined with external threads, nuts, and washers, enhances mechanical strength and ensures reliable installation and sealing protection. The cylindrical grooves, countersunk edges, locking posts, and through-holes in the countersunk edge design of the internal wire interface provide a stable mounting foundation for the circuit board and optimize internal electrical connection paths. Through the synergistic effect of these structural components, the high-reliability RJ45 connector based on surface mount soldering effectively solves the production and performance pain points of traditional RJ45 products, meeting the stringent requirements of modern network communication for reliability, efficiency, and environmental adaptability of connection devices.

[0041] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A high-reliability RJ45 connector based on surface mount soldering, comprising a housing, a circuit board, and an RJ45 contact, wherein one end of the housing is an Ethernet interface and the other end is an internal wire interface, the circuit board is inserted into the housing from one end of the internal wire interface, and the RJ45 contact is mounted on one end of the Ethernet interface and plugged into the circuit board, characterized in that, It also includes a surface mount base, on the side of the circuit board facing the internal line interface, a plurality of surface mount pads are provided, and the surface mount base is provided with surface mount pins corresponding to the surface mount pads. The surface mount pins are connected to the surface mount pads by reflow soldering to form a wiring socket on the circuit board.

2. A high reliability RJ45 connector based on patch welding according to claim 1, characterized in that, The Ethernet interface of the housing is provided with a slot for an RJ45 connector male, and the RJ45 contact is located inside the slot.

3. A high reliability RJ45 connector based on patch welding according to claim 1, characterized in that, The outer peripheral surface of the Ethernet interface end of the housing is provided with an external thread, and a nut is connected to the external thread; the Ethernet interface end of the housing is also provided with a washer, and the washer is located on the side of the nut close to the internal wire interface.

4. A high reliability RJ45 connector based on patch welding according to claim 3, characterized in that, The nut is a plastic nut.

5. A high reliability RJ45 connector based on patch welding according to claim 1, characterized in that, One end of the internal wiring interface of the housing is a cylindrical groove, and a recessed platform is provided inside the cylindrical groove. The circular circuit board is mounted on the recessed platform.

6. A high reliability RJ45 connector based on patch welding according to claim 5, characterized in that, The bottom side wall of the sink is provided with several snap-fit ​​posts, and the edge of the circuit board is fixed on the sink through the snap-fit ​​posts.

7. A high reliability RJ45 connector based on patch welding according to claim 5, characterized in that, The platform is provided with a platform through hole, which is connected to one end of the Ethernet interface of the outer shell.

8. A high-reliability RJ45 connector based on patch soldering according to any one of claims 1 to 7, characterized in that, The outer shell is integrally injection molded.

9. A high-reliability RJ45 connector based on patch soldering according to claim 1 or 2, characterized in that, The RJ45 contact includes a conductive body with eight resilient prongs and grounding plates located on both sides of the conductive body.

10. A high reliability RJ45 connector based on patch welding according to claim 9, characterized in that, The circuit board is provided with plug-in holes, including eight signal plug-in holes and two ground plug-in holes. The eight elastic contacts are plugged into the eight signal plug-in holes one by one, and the grounding plates on both sides are plugged into the two ground plug-in holes one by one.

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