A screw post structure with electric conduction and waterproof function

Abstract

The utility model relates to the field of electronic equipment structure design discloses a screw post structure with electrically conductive and waterproof function, including screw post main part, the inside waterproof mechanism of screw post main part is provided with, the inside waterproof mechanism is provided with electrically conductive mechanism, the waterproof mechanism includes waterproof shell, the outside lower side of waterproof shell is provided with waterproof glueing groove all around, the bottom fixedly connected with two fixed column of waterproof shell, the outside fixed connection of fixed column has PCBA, the inside waterproof glueing groove is provided with waterproof glue. In the utility model, the electrically conductive screw is fixed in the injection molding hole of waterproof shell through injection molding process, then the fixed column of waterproof shell bottom is docked PCBA preset interface, simplifies equipment internal structure design, and the integrally formed assembly can provide continuous stable contact pressure, has the ability of strong anti -vibration and anti -impact and waterproof, effectively guarantees the stability of electromagnetic shielding effect.

Description

Technical Field

[0001] This utility model relates to the field of electronic device structural design, and in particular to a screw post structure with conductive and waterproof functions. Background Technology

[0002] Typically, internal assembly studs in consumer electronics devices are primarily used for mechanical fixing and functional integration between components. Taking a waterproof Bluetooth speaker as an example, internal studs are needed to stably connect the PCBA board, waterproof housing, and outer shell. At the same time, some functional studs also need to provide electrical conductivity or waterproof sealing.

[0003] Conventional screw posts in the prior art are pre-fixed by clips and glue after being processed separately, so as to align with the mounting holes of the target mounting component. Then, the matching screw is passed through the through hole of the mounting component and screwed into the built-in threaded hole of the screw post. Through the meshing force of the screw and the thread, the mounting component is tightly pressed against the end face of the screw post, thus achieving mechanical fixation between the two.

[0004] In existing technologies, some screw posts only provide mechanical fixation. If the equipment also requires waterproofing, conductivity, electromagnetic shielding, and other functions, additional components such as waterproof rubber rings, conductive springs, and shielding covers need to be designed around the screw post. This increases the complexity of the internal structure of the equipment and the number of assembly steps. Due to the gaps between multiple components, there are potential problems such as waterproofing failure and poor conductive contact. The adaptability and integration efficiency are also low. Therefore, a screw post structure with conductive and waterproof functions is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a screw post structure with conductive and waterproof functions, aiming to improve the problem of some screw posts having only one function in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A screw post structure with conductive and waterproof functions includes a screw post body, a waterproof mechanism inside the screw post body, a conductive mechanism inside the waterproof mechanism, a waterproof shell, waterproof glue grooves around the lower outer side of the waterproof shell, two fixing posts fixedly connected to the bottom of the waterproof shell, and injection molding holes inside the waterproof shell.

[0008] As a further description of the above technical solution:

[0009] The conductive mechanism includes a conductive screw, which is externally fixedly connected to the inside of the waterproof shell;

[0010] As a further description of the above technical solution:

[0011] The fixed column is externally fixedly connected to a PCBA, and the waterproof glue application groove is internally filled with waterproof glue.

[0012] As a further description of the above technical solution:

[0013] The conductive screw has a conductive threaded hole inside, and the conductive threaded hole is a standard internal thread.

[0014] As a further description of the above technical solution:

[0015] The bottom outer side of the conductive screw is fixedly connected to the outside of the PCBA, and the internal thread of the conductive threaded hole is threaded with a screw.

[0016] This utility model has the following beneficial effects:

[0017] 1. In this utility model, the conductive screw is fixed to the injection hole of the waterproof shell through injection molding, which ensures a firm connection between the two and guarantees that the coaxiality meets the standard. Then, the fixing post at the bottom of the waterproof shell is inserted through the PCBA to fix it, while the outer side of the conductive screw is tightly attached to the PCBA surface to initially establish the electrical connection path. Subsequently, the matching screw is screwed into the conductive threaded hole to lock it, which not only completes the mechanical fixation but also enhances the stability of conductive contact. The conductive path and waterproof sealing function are highly integrated into a single screw post component, which simplifies the internal structural design of the equipment. The one-piece molded component can provide continuous and stable contact pressure, which not only has low contact resistance and excellent conductivity, but also has strong vibration and impact resistance as well as waterproof capability, effectively ensuring the stability of electromagnetic shielding effect.

[0018] 2. In this utility model, the waterproof shell is attached to the surrounding structure, which causes the waterproof glue in the waterproof glue groove to be squeezed and fill the gap, forming a radial sealing structure. This can prevent moisture and dust from entering. Compared with the traditional screw post, which requires an additional conductive path and a sealing ring, the structure integrates conductive and waterproof functions, simplifies the assembly process, improves conductive reliability and waterproof effect, reduces costs, and is suitable for a variety of electronic devices that require grounding and waterproofing. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of a screw post structure with conductive and waterproof functions proposed in this utility model.

[0020] Figure 2 This is a schematic diagram of a waterproof shell with a screw column structure that has conductive and waterproof functions, as proposed in this utility model.

[0021] Figure 3 This is a schematic diagram of a waterproof shell with a screw column structure that has conductive and waterproof functions, as proposed in this utility model.

[0022] Figure 4 This is a schematic diagram of a conductive threaded hole in a screw post structure that has conductive and waterproof functions, as proposed in this utility model.

[0023] Legend:

[0024] 1. Screw post body;

[0025] 2. Waterproofing mechanism; 21. Waterproof shell; 22. Waterproof sealant channel; 23. Fixing post; 24. Injection hole;

[0026] 3. Conductive mechanism; 31. Conductive screw; 32. Conductive threaded hole. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example:

[0029] A screw post structure with conductive and waterproof functions, as shown in the reference. Figures 1 to 3 The device includes a screw post body 1, a waterproof mechanism 2 inside the screw post body 1, and a conductive mechanism 3 inside the waterproof mechanism 2. The waterproof mechanism 2 is used to achieve the waterproof sealing function of the screw post structure. Through its own structural design, it prevents moisture and dust from entering the equipment and protects the internal PCBA and conductive components from the influence of the external environment. The screw post body 1 provides a mounting carrier for the waterproof mechanism 2 and the conductive mechanism 3. At the same time, through cooperation with other components of the equipment, it achieves the mechanical fixation of the overall structure and ensures the stability of the screw post in the equipment. The conductive mechanism 3 is mainly used to build a stable conductive path to realize the current transmission between the PCBA and external components, while ensuring the reliability and stability of the conductivity performance and meeting the electrical connection requirements of the equipment.

[0030] Specifically, the conductive screw 31 in the conductive mechanism 3 is first fixed in the injection hole 24 of the waterproof shell 21 of the waterproof mechanism 2 through injection molding process, ensuring that the two are firmly connected and the coaxiality meets the standard. Then, the fixing post 23 at the bottom of the waterproof mechanism 2 passes through the PCBA to fix the PCBA. At the same time, the outer side of the bottom of the conductive screw 31 is pressed against the surface of the PCBA to initially build the electrical connection path. Then, the assembled components of the waterproof mechanism 2 and the conductive mechanism 3 are integrated into the screw post body 1. The matching screws are screwed into the conductive thread hole 32 of the conductive screw 31 to lock it. While completing the mechanical fixation of the overall structure, the stability of conductive contact is enhanced. The waterproof glue in the waterproof glue groove 22 of the waterproof mechanism 2 is squeezed to fill the gaps and achieve waterproof sealing. Finally, the functions of mechanical fixation, stable conductivity and effective waterproofing are achieved simultaneously.

[0031] The waterproof mechanism 2 includes a waterproof shell 21. Waterproof sealant grooves 22 are formed around the lower outer perimeter of the waterproof shell 21. Two fixing posts 23 are fixedly connected to the bottom of the waterproof shell 21. The waterproof shell 21 provides a protective space for the internal conductive mechanism 3, forming a sealed environment through cooperation with the surrounding structure. An injection molding hole 24 is formed inside the waterproof shell 21. The injection molding process securely fixes the conductive screw 31 inside the waterproof shell 21, ensuring the tightness and coaxiality of the connection and preventing misalignment during subsequent use. A PCBA is fixedly connected to the outside of the fixing posts 23. The PCBA is the core circuit board of the electronic device and the target component for current transmission in the conductive mechanism 3. It is connected to the fixing posts 23 and the conductive screw 31. This enables electrical communication between itself and external components, ensuring the normal operation of the equipment's electronic functions. One end of the fixing column 23 is fixed to the waterproof shell 21, and the other end passes through and is fixed to the PCBA. The position of fixing the PCBA strengthens the electrical connection between the PCBA and the conductive mechanism 3, enhancing the stability of the conductive path. The waterproof glue application groove 22 is filled with waterproof glue. The waterproof glue has good sealing performance. When filled in the waterproof glue application groove 22 and squeezed, it can evenly cover the gaps, forming a tight sealing layer, effectively preventing liquids and dust from entering. The waterproof glue application groove 22 is used to hold the waterproof glue. Through the filling and squeezing of the waterproof glue, the gaps between the waterproof shell 21 and the surrounding structure are filled to form a radial seal, which achieves the IP67 waterproof rating.

[0032] Specifically, through injection molding, the conductive screw 31 is fixed in the injection hole 24 of the waterproof shell 21 in the waterproof mechanism 2, ensuring that the two are tightly connected and the coaxiality meets the standard. Then, the fixing post 23 at the bottom of the waterproof shell 21 is passed through the PCBA for reinforcement and fixation, while the conductive screw 31 is attached to the PCBA to initially establish an electrical connection path. Subsequently, waterproof glue is filled into the waterproof glue groove 22 around the lower side of the waterproof shell 21, and the assembled waterproof mechanism 2 and conductive mechanism 3 are integrated and locked with matching screws. At this time, the waterproof glue in the waterproof glue groove 22 is squeezed to cover the gap and form a radial seal, thus simultaneously achieving mechanical fixation, stable conductivity and IP67 waterproof function.

[0033] Reference Figures 2 to 4 The conductive mechanism 3 includes a conductive screw 31, which is externally fixed to the inside of the waterproof shell 21. The conductive screw 31 has a conductive threaded hole 32 inside. The conductive screw 31 is made of copper and is the core component of the conductive path. It is externally fixed to the waterproof shell 21 and its bottom contacts the PCBA. The internal threaded hole not only realizes the conductive function but also provides an installation base for the matching screw, ensuring both mechanical fixation and electrical connection. The conductive threaded hole 32 uses a standard internal thread design to match the standard matching screw, which facilitates assembly, assists in conductivity, enhances the integrity of the conductive path, and ensures stable current transmission. The bottom outer side of the conductive screw 31 is fixedly connected to the outside of the PCBA. The internal thread of the conductive threaded hole 32 is connected to a screw. The screw locks the screw column body 1 to the surrounding structure through the threaded connection, completing the mechanical fixation of the overall structure. At the same time, it further compresses the waterproof shell 21, allowing the waterproof glue to better fill the gaps, strengthening the waterproof effect, increasing the contact pressure between the conductive screw 31 and the PCBA, and improving the reliability of conductivity.

[0034] Specifically, the copper conductive screw 31 is fixed inside the waterproof shell 21 through injection molding to ensure a stable connection. Then, the outer bottom of the conductive screw 31 is fixedly connected to the PCBA to initially establish a conductive path. Subsequently, the matching screw is screwed into the standard internal thread conductive thread hole 32 inside the conductive screw 31, and the screw post body 1 is locked to the surrounding structure through the threaded connection to complete the overall mechanical fixation. During this process, the screw further compresses the waterproof shell 21 when it is tightened, which promotes better filling of the gaps in the waterproof glue groove 22 to enhance the waterproof effect. At the same time, it increases the contact pressure between the conductive screw 31 and the PCBA, and finally achieves stable conductivity, mechanical fixation and effective waterproofing simultaneously.

[0035] The implementation principle of this application embodiment is as follows: The conductive screw 31 is fixed in the injection hole 24 inside the waterproof shell 21 through the injection molding process, ensuring that the conductive screw 31 and the waterproof shell 21 are firmly connected and the coaxiality meets the standard, avoiding misalignment during subsequent assembly or use, which would affect the conductivity and fixing effect. The two fixing posts 23 at the bottom of the waterproof shell 21 pass through the PCBA to play a fixing role, while ensuring that the bottom outer side of the conductive screw 31 is tightly attached to the PCBA surface, initially establishing the electrical connection path between the PCBA and the conductive mechanism 3, preparing for the subsequent implementation of the conductive function. The assembled components of the waterproof mechanism 2 and the conductive mechanism 3 are integrated with the screw post body 1, and then the matching screw is screwed into the conductive threaded hole 32 until the screw is locked, so that the screw post body 1 is tightly attached to the surrounding structure, completing the mechanical fixing of the overall structure, while further enhancing the contact stability between the conductive screw 31 and the PCBA.

[0036] The waterproof shell 21 fits tightly with the surrounding structure. The waterproof adhesive in the waterproof sealant groove 22 is squeezed and evenly fills the gap between the waterproof shell 21 and the surrounding structure, forming an efficient radial sealing structure. This sealing structure can effectively prevent moisture and dust from entering the equipment.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A screw post structure with conductive and waterproof functions, comprising a screw post body (1), characterized in that: The screw post body (1) is provided with a waterproof mechanism (2) inside, and the waterproof mechanism (2) is provided with a conductive mechanism (3) inside; The waterproof mechanism (2) includes a waterproof shell (21), and a waterproof sealant groove (22) is provided around the lower outer side of the waterproof shell (21). Two fixing columns (23) are fixedly connected to the bottom of the waterproof shell (21), and an injection hole (24) is provided inside the waterproof shell (21).

2. The screw post structure with conductive and waterproof functions according to claim 1, characterized in that: The conductive mechanism (3) includes a conductive screw (31), which is externally fixed to the inside of the waterproof shell (21).

3. A screw post structure with conductive and waterproof functions according to claim 2, characterized in that: The fixed column (23) is externally fixedly connected to a PCBA, and the waterproof glue groove (22) is internally provided with waterproof glue.

4. A screw post structure with conductive and waterproof functions according to claim 3, characterized in that: The conductive screw (31) has a conductive threaded hole (32) inside, and the conductive threaded hole (32) is a standard internal thread.

5. A screw post structure with conductive and waterproof functions according to claim 4, characterized in that: The bottom outer side of the conductive screw (31) is fixedly connected to the outside of the PCBA, and the internal thread of the conductive threaded hole (32) is threaded with a screw.

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