A waterproof nut is fixed by pressing rivet for automobile entertainment screen

Abstract

The utility model discloses a kind of car entertainment screen fixed with pressure riveting waterproof nut, it is related to the technical field of car entertainment screen fixing, including nut column, abutment sleeve and sheet, the upper end of nut column is provided with thread groove, and the lower end of nut column is provided with end, the outside upper portion of nut column is provided with abutment sleeve, the upper of abutment sleeve is provided with riveting head, the upper of nut column is provided with sheet, riveting hole is opened on the sheet. The car entertainment screen fixed with pressure riveting waterproof nut does not need to thread or weld to 1-2mm thick cabin sheet baseboard, by the interference fit of riveting head and sheet upper riveting hole, firmly connected can be realized by riveting pressure, avoid the deformation or melting loss of baseboard caused by high-temperature welding;Abutment sleeve increases the contact area with sheet, disperses stress, effectively prevent " pull off " phenomenon on thin baseboard, adapt to the fixing demand of car entertainment screen.

Description

Technical Field

[0001] This utility model relates to the field of automotive entertainment screen fixing technology, specifically a pressure-fitted waterproof nut for fixing an automotive entertainment screen. Background Technology

[0002] The automotive entertainment screen is a core component of the intelligent cabin of modern passenger vehicles. It is usually installed on a thin metal / plastic substrate in the dashboard and center console area. The reliability of its fixing structure directly affects the user experience and driving safety. If the fixing is loose, it can easily cause the entertainment screen to vibrate and make abnormal noises, display deviation, or even fall off when the vehicle is bumpy. At the same time, condensation and cleaning liquids in the cabin can easily seep into the fixing parts. If the fasteners are not waterproof, it can cause the substrate to rust, short circuits in the entertainment screen circuit, and other malfunctions.

[0003] As car cabins evolve towards larger and more multi-screen designs, the size and weight of entertainment screens are gradually increasing, placing higher demands on the load-bearing capacity and sealing performance of fasteners.

[0004] Traditional automotive infotainment screen mounting methods often use ordinary threaded nuts or welded nuts, which have significant technical limitations: First, they have low compatibility with thin substrates. Automotive cabin substrates are mostly thin-walled sheets (1-2mm thick), making direct threading impossible. Welded nuts are prone to deformation of the thin substrate and melting of the plastic substrate due to high-temperature welding, and the nut position is difficult to adjust after welding, resulting in insufficient flexibility in adapting to different screen sizes. Second, they lack waterproofing. Ordinary nuts have through-hole structures, allowing moisture and liquids to easily seep into the substrate through the thread gaps, contacting the infotainment screen's circuit interfaces and causing corrosion and short circuits. Some solutions achieve waterproofing by attaching additional sealing rings, but these rings are prone to aging and falling off, leading to waterproofing failure after long-term use and increasing assembly steps and costs. Third, they lack sufficient fixing stability. Traditional nuts rely on the cooperation of threads and screws for fixation, and long-term vehicle vibration can easily cause the threads to loosen, especially on thin substrates where the thread stress area is small, making them prone to "pull-out" phenomena, failing to guarantee the long-term stability of the infotainment screen.

[0005] Therefore, we propose a press-fit waterproof nut for fixing automotive entertainment screens to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a press-fit waterproof nut for fixing an automotive entertainment screen, in order to solve the problems mentioned in the background art, such as the difficulty of adapting the ordinary threaded nuts or welding nuts used in automotive entertainment screens on the market to the 1-2mm thick thin substrate of the cabin, the easy deformation / melting of the substrate due to high temperature welding and the difficulty in adjusting the position, the easy water seepage due to the through hole structure, and the easy pull-out problem on the thin substrate.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a waterproof nut for fixing an automotive entertainment screen, comprising a nut post, an abutment sleeve, and a thin plate. The upper end of the nut post is provided with a threaded groove, and the lower end of the nut post is provided with a cap. An abutment sleeve is provided on the upper outer side of the nut post, and a rivet head is provided above the abutment sleeve. A thin plate is provided above the nut post, and a rivet hole is provided on the thin plate.

[0008] Preferably, the nut post is a blind hole design, the threaded groove does not penetrate the lower end of the nut post, and the nut post and the end cap are integrally formed.

[0009] With the above structural design, the nut post adopts a blind hole design and the thread groove does not penetrate through the lower end to prevent liquid from seeping in through the thread gap; the nut post and the end cap are integrally formed to enhance the overall structural strength, prevent breakage or loosening when the vehicle vibrates, and ensure long-term stability.

[0010] Preferably, the nut post, end cap, abutment sleeve and rivet joint are all rust-proofed and have a corrosion-resistant coating on their surfaces.

[0011] The above structural design resists the corrosion of condensation and cleaning liquids inside the cabin, prevents component corrosion from affecting the fixing effect and waterproof performance, and extends service life.

[0012] Preferably, the inner diameter of the threaded groove is adapted to the outer diameter of the car entertainment screen fixing screw, and the depth of the threaded groove is not less than the effective thread length of the fixing screw.

[0013] The above structural design ensures that the depth meets the requirements for effective threaded connection, ensuring a tight connection between the screw and nut post, preventing the threads from loosening due to vehicle bumps, and guaranteeing that the entertainment screen is firmly fixed.

[0014] Preferably, the abutting sleeve abuts against the lower surface of the thin plate, and the outer diameter of the abutting sleeve is larger than the outer diameter of the nut column.

[0015] With the above structural design, the abutting sleeve abuts against the lower surface of the thin plate. Its larger outer diameter increases the contact area with the thin plate, disperses the force at the riveting point, avoids deformation of the thin plate due to excessive local pressure, and restricts the installation position of the thin plate, thereby improving the riveting accuracy.

[0016] Preferably, the rivet joint is interference-fitted with the rivet hole on the thin plate. When installing the nut post, the nut post is placed in the limiting groove, and then the thin plate is riveted onto the nut post through the rivet hole and the rivet joint.

[0017] With the above structural design, the nut column is placed in the limiting groove during installation, and the thin plate is fitted into the rivet joint through the rivet hole. The rivet joint and the rivet hole are interference-fitted by the riveting process to achieve a firm connection between the thin plate and the nut column. No welding or tapping is required, which is suitable for the installation requirements of thin plate substrates.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the waterproof nut for fixing the car entertainment screen: 1. Adapts to thin substrates and ensures secure mounting, preventing deformation and pull-out. No need to tap or weld on the 1-2mm thick cabin substrate. A firm connection can be achieved by riveting through the interference fit between the rivet head and the rivet hole on the thin plate, avoiding substrate deformation or melting caused by high temperature welding. The abutment sleeve increases the contact area with the thin plate, distributes the force, and effectively prevents the "pull-out" phenomenon on the thin substrate, which is suitable for the fixing requirements of automotive entertainment screens. 2. Excellent waterproof and corrosion-resistant properties, ensuring reliable long-term use. The nut post features a blind hole design, with the threaded groove not penetrating the lower end, blocking the path of liquid seepage. It achieves waterproofing without the need for an additional sealing ring, preventing short circuits or substrate corrosion caused by condensation or cleaning fluids in the cabin. All core components are rust-proofed and have a corrosion-resistant coating to resist erosion, extend service life, and ensure the long-term stable operation of the car entertainment screen. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall main structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the structure during the installation of the thin plate of this utility model; Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1. Nut post; 2. Threaded groove; 3. End cap; 4. Abutment sleeve; 5. Rivet joint; 6. Thin plate; 7. Rivet hole. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-4This utility model provides a technical solution: a waterproof nut for fixing an automotive entertainment screen, comprising a nut post 1, a threaded groove 2, a cap 3, an abutment sleeve 4, a rivet joint 5, a thin plate 6, and a rivet hole 7. The upper end of the nut post 1 has a threaded groove 2, and the lower end of the nut post 1 has a cap 3. The nut post 1 is a blind hole design, and the threaded groove 2 does not penetrate the lower end of the nut post 1. The nut post 1 and the cap 3 are integrally formed. The blind hole design of the nut post 1 and the threaded groove 2 not penetrating the lower end prevent liquid from seeping in through the thread gap; the nut post 1 and the cap 3... The unibody design enhances overall structural strength, preventing breakage or loosening during vehicle vibration and ensuring long-term stability. A retaining sleeve 4 is located on the upper outer side of the nut post 1, and a rivet head 5 is positioned above the retaining sleeve 4. The nut post 1, end cap 3, retaining sleeve 4, and rivet head 5 are all rust-proofed and have a corrosion-resistant coating to resist corrosion from condensate and cleaning fluids inside the cabin, preventing rust from affecting the fixing effect and waterproof performance, and extending service life. The inner diameter of the threaded groove 2 is adapted to the outer diameter of the automotive entertainment screen fixing screw, and the threaded groove 2... The depth is not less than the effective thread length of the fixing screw, and the depth meets the requirements of the effective thread connection, ensuring a tight connection between the screw and the nut post 1, preventing the threads from loosening due to vehicle bumps, and ensuring the entertainment screen is firmly fixed. A thin plate 6 is provided above the nut post 1, and the abutment sleeve 4 abuts against the lower surface of the thin plate 6. The outer diameter of the abutment sleeve 4 is larger than the outer diameter of the nut post 1. The larger outer diameter of the abutment sleeve 4 abuts against the lower surface of the thin plate 6, increasing the contact area with the thin plate 6, dispersing the force at the riveting point, preventing the thin plate substrate from deforming due to excessive local pressure, and at the same time restricting the thin plate 6. The installation position improves riveting accuracy. The thin plate 6 has riveting holes 7. The riveting head 5 is interference-fitted with the riveting holes 7 on the thin plate 6. When installing the nut post 1, the nut post 1 is placed in the limiting groove, and then the thin plate 6 is riveted to the nut post 1 through the riveting holes 7 and the riveting head 5. During installation, the nut post 1 is placed in the limiting groove, and the thin plate 6 is fitted into the riveting head 5 through the riveting holes 7. The riveting process makes the riveting head 5 and the riveting holes 7 interference-fitted, realizing a firm connection between the thin plate 6 and the nut post 1. No welding or tapping is required, which is suitable for the installation requirements of thin substrate.

[0023] Working principle: When using the waterproof nut for fixing the car entertainment screen, firstly, during installation, place the nut post 1 in the preset limiting groove so that the abutment sleeve 4 is in a horizontal state, and then put the thin plate 6 through the rivet hole 7 on it into the rivet head 5 above the nut post 1.

[0024] Pressure is applied to the thin plate 6 by riveting equipment, and the thin plate 6 is firmly riveted to the nut column 1 by the interference fit between the riveting head 5 and the riveting hole 7. At this time, the abutment sleeve 4 is in close contact with the lower surface of the thin plate 6, increasing the contact area to distribute the force.

[0025] The nut post 1 and the end cap 3 are integrally formed, which enhances the overall structural stability. The blind hole design of the nut post 1 prevents the threaded groove 2 from penetrating the lower end, blocking the liquid seepage path and achieving a waterproof effect.

[0026] When fixing the car entertainment screen, screw the fixing screw into the threaded groove 2 of the nut post 1. The inner diameter of the threaded groove 2 matches the outer diameter of the screw, and the depth meets the requirements for effective thread connection, ensuring that the entertainment screen is firmly fixed.

[0027] The corrosion-resistant coating and rust-proof treatment on the surfaces of the nut post 1, end cap 3, abutment sleeve 4, and rivet joint 5 resist the erosion of condensate and cleaning fluids inside the cabin, ensuring long-term reliability and thus completing a series of tasks. Contents not described in detail in this specification are prior art known to those skilled in the art.

[0028] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A waterproof nut for fixing a car entertainment screen, comprising a nut post (1), an abutment sleeve (4), and a thin plate (6), characterized in that: The upper end of the nut column (1) is provided with a threaded groove (2), and the lower end of the nut column (1) is provided with a cap (3). The upper outer side of the nut column (1) is provided with an abutment sleeve (4), and a rivet head (5) is provided above the abutment sleeve (4). A thin plate (6) is provided above the nut column (1), and a rivet hole (7) is provided on the thin plate (6).

2. The waterproof nut for fixing a car entertainment screen according to claim 1, characterized in that: The nut post (1) is designed as a blind hole, the threaded groove (2) does not penetrate the lower end of the nut post (1), and the nut post (1) and the end cap (3) are integrally formed.

3. The waterproof nut for fixing a car entertainment screen according to claim 1, characterized in that: The nut column (1), end cap (3), abutment sleeve (4) and rivet joint (5) are all rust-proofed and have a corrosion-resistant coating on their surfaces.

4. The waterproof nut for fixing a car entertainment screen according to claim 1, characterized in that: The inner diameter of the threaded groove (2) is adapted to the outer diameter of the car entertainment screen fixing screw, and the depth of the threaded groove (2) is not less than the effective thread length of the fixing screw.

5. The waterproof nut for fixing a car entertainment screen according to claim 1, characterized in that: The abutting sleeve (4) abuts against the lower surface of the thin plate (6), and the outer diameter of the abutting sleeve (4) is greater than the outer diameter of the nut column (1).

6. The waterproof nut for fixing a car entertainment screen according to claim 1, characterized in that: The rivet joint (5) is interference-fitted with the rivet hole (7) on the thin plate (6). When installing the nut column (1), the nut column (1) is placed in the limiting groove, and then the thin plate (6) is riveted onto the nut column (1) through the rivet hole (7) and the rivet joint (5).

Images