Sealing waterproof device for vehicle-mounted electronic product

Abstract

The utility model discloses a sealing waterproof device for a vehicle-mounted electronic product, and belongs to the technical field of sealing devices. Aiming at the problem that the side surface of a vehicle-mounted electronic product is not easy to seal in the prior art, the sealing waterproof device provided by the utility model has the advantages that the longitudinal groove is formed in the edge of the binding surface of the upper shell and the lower shell, and the sealing ring made of hard plastic is embedded into the groove to form a first waterproof barrier, so that the sealing waterproof device is not easy to deform during installation due to the material characteristic; and after being closed, the shell is tightly attached to a shell seam, so that liquid permeation is effectively blocked. A transverse groove is formed in the outer side of the sealing ring, a detachable silica gel side sealing strip is clamped in the transverse groove, the soft elasticity of silica gel fills a gap of a binding face in a self-adaptive mode under the closing pressure of the shell, and particularly secondary sealing is formed for a complex curved face of the side face. The interface lantern ring integrated on the sealing ring directly wraps the circuit interface, the position of the sealing ring is fixed through integrated design, the interface is protected in all directions, and the problem that the side face of a traditional connector is weak in sealing is solved.

Description

A sealing and waterproofing device for automotive electronic products Technical Field

[0001] This utility model belongs to the field of sealing device technology, specifically relating to a sealing and waterproofing device for automotive electronic products. Background Technology

[0002] In-vehicle electronics are an important component of modern automobiles' intelligence, comfort, and safety. With the rapid development of automotive electronics technology, their types and functions are constantly expanding. When a vehicle is exposed to rain or other conditions, water may enter the in-vehicle electronics, potentially damaging internal circuit components. Therefore, it is essential to install sealing and waterproof devices for them.

[0003] In automotive electronic product design, to achieve stable connections between devices and external systems, multiple external interfaces are typically required, relying on connectors for signal transmission. However, due to the complexity of vehicle interior space layout and structural design, as well as the need to control mass production costs, traditional standard connectors often struggle to meet stringent waterproofing requirements—especially side sealing protection. Because vehicles are susceptible to rain, oil penetration, and changes in ambient temperature and humidity during operation, the sides of the connector (such as the gap between the mating surface and the housing) are more prone to liquid penetration. Customized sealing solutions are needed to upgrade the waterproofing level to IP67 / IP69K standards, while simultaneously balancing space adaptability and cost control.

[0004] This invention aims to solve or at least alleviate the problem of poor side sealing of automotive electronic products by providing a sealing and waterproofing device for automotive electronic products. Summary of the Invention

[0005] In view of one or more of the above-mentioned defects or improvement needs of the prior art, the present invention provides a sealing and waterproofing device for vehicle electronic products, which has the advantage of providing good side sealing.

[0006] To achieve the above objectives, this utility model provides a sealing and waterproof device for vehicle-mounted electronic products, including an upper housing, a lower housing, and circuit elements. The circuit elements are provided with circuit interfaces and longitudinal grooves on their edges. The longitudinal grooves are provided at the edges of the mating surfaces of the upper housing and the lower housing.

[0007] A sealing ring, the sealing ring being sized to match the longitudinal groove, and the sealing ring being able to be inserted into the longitudinal groove;

[0008] A side sealing strip is provided on the side of the sealing ring, and the side sealing strip cannot be placed in the longitudinal groove.

[0009] As a further improvement of this utility model, the sealing ring is provided with an interface collar, which can be fitted onto the circuit interface.

[0010] As a further improvement of this utility model, a transverse groove is provided on the outer side of the sealing ring, and the side sealing strip is detachably snapped into the transverse groove.

[0011] As a further improvement of this utility model, the sealing ring is made of hard plastic.

[0012] As a further improvement of this utility model, the rigid plastic is one of polytetrafluoroethylene, polyurethane, and thermoplastic polyester elastomer.

[0013] As a further improvement of this utility model, the side sealing strip is made of silicone.

[0014] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include:

[0015] This utility model's sealing and waterproofing device features a longitudinal groove along the edge of the mating surfaces of the upper and lower housings. A rigid plastic sealing ring is embedded within this groove to form the first layer of waterproofing. The material's properties ensure it is not easily deformed during installation, and when closed, it fits tightly against the housing joints, effectively preventing liquid infiltration. A transverse groove is located on the outer side of the sealing ring, into which a detachable silicone side sealing strip is engaged. The soft elasticity of the silicone adaptively fills the gaps between the mating surfaces under the pressure of the housing closure, creating a secondary seal, especially effective for complex curved surfaces, meeting stringent waterproofing standards. An interface collar integrated into the sealing ring directly wraps around the outside of the circuit interface. This integrated design secures the sealing ring while providing comprehensive protection for the interface, avoiding the weak side seals of traditional connectors. Furthermore, the side sealing strip employs a modular design. After long-term use, only worn silicone components need to be replaced, eliminating the need to disassemble the entire sealing ring, reducing maintenance costs and extending the device's lifespan. These structural designs work together, through longitudinal positioning, transverse elastic compensation, integrated interface protection, and the synergistic effect of replaceable components, achieving a highly reliable sealing effect while balancing ease of installation and long-term stability. This makes it particularly suitable for waterproofing needs in complex environments such as vehicle interiors. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the sealing and waterproofing device for vehicle electronic products according to the present invention in use.

[0017] Figure 2 is a schematic diagram of the sealing ring with silicone strip of this utility model;

[0018] Figure 3 is a schematic diagram of the sealing ring with transverse groove of this utility model;

[0019] Figure 4 is a top view of the sealing ring of this utility model;

[0020] Figure 5 is a schematic diagram of the structure at point A of this utility model;

[0021] Figure 6 is a schematic diagram of the structure at point B of this utility model.

[0022] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically:

[0023] 1. Sealing ring; 2. Interface collar; 3. Longitudinal groove; 4. Side sealing strip; 5. Transverse groove;

[0024] Upper housing 6; lower housing 7; circuit components 8; circuit interface 9. Detailed Implementation

[0025] 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.

[0026] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The terms “comprising,” “including,” etc., as used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0027] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.

[0028] In the embodiment, as shown in Figures 1-6, Figure 1 is a schematic diagram of the use state of a sealing and waterproof device for vehicle electronic products according to the present invention. It can be seen that the interface collar 2 is sleeved on the circuit interface 9, and the sealing ring 1 can be placed in the longitudinal groove 3.

[0029] Figure 2 is a schematic diagram of the sealing ring with silicone strip of this utility model;

[0030] Figure 3 is a schematic diagram of the sealing ring with transverse groove of this utility model;

[0031] Figure 4 is a top view of the sealing ring of this utility model, which shows that a side sealing strip 4 is provided on the outer side of the sealing ring 1.

[0032] Figure 5 is a schematic diagram of the structure at point A of this utility model, showing that a transverse groove 5 is provided in the middle of the outer side of the sealing ring 1;

[0033] Figure 6 is a schematic diagram of the structure at point B of this utility model, showing that the side sealing strip 4 is set in the middle of the outer side of the sealing ring 1.

[0034] A sealing and waterproof device for automotive electronic products includes an upper housing 6, a lower housing 7, and a circuit element 8. The circuit element 8 has a circuit interface 9 on its edge and a longitudinal groove 3 located at the edge of the mating surface of the upper housing 6 and the lower housing 7. A sealing ring 1 is matched to the longitudinal groove 3 in size and can be inserted into the longitudinal groove 3. A side sealing strip 4 is located on the side of the sealing ring 1 and cannot be inserted into the longitudinal groove 3.

[0035] During installation, the sealing ring 1 is placed in the longitudinal groove 3, and then the circuit component 8 is assembled between the upper housing 6 and the lower housing 7. With the sealing ring 1 positioned between the upper housing 6 and the lower housing 7, any liquid seeping into the joint between the upper housing 6 and the lower housing 7 can be blocked by the sealing ring 1. Simultaneously, the side sealing strip 4 ensures a tighter fit between the upper housing 6 and the lower housing 7, further preventing liquid seepage.

[0036] In a preferred embodiment of this invention, the sealing ring 1 is provided with an interface collar 2, which can be fitted onto the circuit interface 9. The interface collar 2 further enhances the sealing effect without affecting the normal use of the circuit interface 9. Furthermore, when the interface collar 2 is fitted onto the circuit interface 9, the overall position of the sealing ring 1 is fixed. At this point, the upper housing 6, lower housing 7, circuit components 8, and sealing ring 1 can be assembled simultaneously according to the normal assembly steps, significantly simplifying the assembly process.

[0037] In a preferred embodiment of this utility model, a transverse groove 5 is provided on the outer side of the sealing ring 1, and the side sealing strip 4 is detachably snapped into the transverse groove 5. Since the side sealing strip 4 is directly clamped between the upper housing 6 and the lower housing 7, it is most prone to wear after long-term use. Snapping the side sealing strip 4 into the transverse groove 5 makes it detachable, which facilitates timely replacement when the side sealing strip 4 needs to be replaced.

[0038] In a preferred embodiment of this invention, the sealing ring 1 is made of rigid plastic. The rigid plastic material prevents the sealing ring 1 from deforming during installation, allowing it to be placed directly into the longitudinal groove 3, thus reducing unnecessary adjustments during installation.

[0039] In a preferred embodiment of this invention, the rigid plastic is one of polytetrafluoroethylene (PTFE), polyurethane, or thermoplastic polyester elastomer. Using PTFE, polyurethane, or thermoplastic polyester elastomer can ensure sealing while preventing unnecessary deformation.

[0040] As a preferred embodiment of this utility model, the side sealing strip 4 is made of silicone. Since silicone is a soft material, using silicone allows the side sealing strip 4 to be directly fitted into the transverse groove 5, which is more convenient for installation than rigid materials. At the same time, silicone can fit more tightly with the upper shell 6 and the lower shell 7, resulting in better waterproofing.

[0041] In summary, this utility model's sealing and waterproofing device creates a first-line waterproof barrier by embedding a rigid plastic sealing ring into the longitudinal groove at the edge of the mating surfaces of the upper and lower housings. The material's properties ensure it is not easily deformed during installation, and when closed, it tightly fits the housing joint, effectively preventing liquid infiltration. A transverse groove is provided on the outer side of the sealing ring, into which a detachable silicone side sealing strip is engaged. The soft elasticity of the silicone adaptively fills the gaps between the mating surfaces under the pressure of the housing closure, creating a secondary seal, especially for complex curved surfaces, meeting stringent waterproofing standards. The interface collar integrated into the sealing ring directly wraps around the outside of the circuit interface. This integrated design fixes the sealing ring's position while providing all-around protection for the interface, avoiding the weak side seals of traditional connectors. Furthermore, the side sealing strip adopts a modular design; after long-term use, only worn silicone components need to be replaced, eliminating the need to disassemble the entire sealing ring, reducing maintenance costs and extending the device's lifespan. These structural designs work together, through longitudinal positioning, transverse elastic compensation, integrated interface protection, and the synergistic effect of replaceable components, achieving a highly reliable sealing effect while balancing ease of installation and long-term stability, making it particularly suitable for waterproofing needs in complex in-vehicle environments.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealing and waterproof device for vehicle-mounted electronic products, comprising an upper housing (6), a lower housing (7), and circuit elements (8), wherein the circuit elements (8) have circuit interfaces (9) at their edges, characterized in that, It is also provided with a longitudinal groove (3), and the longitudinal groove (3) is provided at the edge of the contact surface of the upper shell (6) and the lower shell (7); a sealing ring (1), the sealing ring (1) is matched with the longitudinal groove (3) in size, and the sealing ring (1) can be put into the longitudinal groove (3); a side sealing strip (4), the side sealing strip (4) is provided on the side of the sealing ring (1), and the side sealing strip (4) cannot be put into the longitudinal groove (3).

2. The sealing and waterproofing device according to claim 1, characterized in that, The sealing ring (1) is provided with an interface collar (2), which can be fitted onto the circuit interface (9).

3. The sealing and waterproofing device according to claim 2, characterized in that, The sealing ring (1) has a transverse groove (5) on its outer side, and the side sealing strip (4) is detachably snapped into the transverse groove (5).

4. The sealing and waterproofing device according to claim 1, characterized in that, The sealing ring (1) is made of hard plastic.

5. The sealing and waterproofing device according to claim 4, characterized in that, The rigid plastic is one of polytetrafluoroethylene, polyurethane, or thermoplastic polyester elastomer.

6. The sealing and waterproofing device according to claim 3, characterized in that, The side sealing strip (4) is made of silicone.

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