A plastic part for an automotive sunroof

Abstract

This utility model discloses a plastic component for an automotive sunroof, including a plastic frame, a rubber seal, and a glass panel. The glass panel is located inside the plastic frame, and the rubber seal is located on the plastic frame. Multiple shaped meshes are located inside the plastic frame, and foamed silicone is located inside the shaped meshes. Two drainage channels are located at one end of the foamed silicone, and a drainage groove is located at the lower end of the drainage channels. The drainage groove is connected to the sunroof drainage pipe. This device utilizes the tight interlocking structure of the rubber seal and the glass panel, the inclined drainage path of the drainage channels and the drainage groove, and the insertion design of the insert block and the second slot to achieve efficient sealing, drainage, shock absorption, and quick installation and replacement of the rubber seal. It solves the problems of existing devices lacking reliable sealing and drainage performance and convenient maintenance and replacement functions.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive parts manufacturing, specifically a plastic part for automotive sunroofs. Background Technology

[0002] In existing technologies, the plastic components of automotive sunroofs are primarily used to secure the glass panel and provide a seal to prevent rainwater and dust from entering the vehicle. However, traditional plastic components often face the following problems during long-term use: First, the sealing structure is simple, relying solely on rubber sealing strips, which are prone to seal failure due to aging or deformation, especially in extreme weather conditions where water leakage is likely to occur; second, the lack of an effective drainage design allows rainwater to accumulate at the seals, making it difficult to drain quickly and increasing the risk of corrosion to internal components; furthermore, traditional plastic components have poor shock absorption performance, and the sunroof area is prone to rattling noises during vehicle operation, affecting driving comfort. Therefore, there is an urgent need for automotive sunroof plastic components with multiple sealing, efficient drainage, and shock absorption functions to improve their waterproof performance, durability, and user experience.

[0003] A search revealed Chinese patent publication number CN222136440U, which discloses a plastic component for an automotive sunroof. The component includes a plastic frame with two combined covers. Slots are formed on the inner walls of both sides of the plastic frame, and glass plates are installed within these slots. Desiccant is filled into desiccant boxes on both outer walls of the plastic frame. A sealing gasket is placed between the outer wall of the glass plate and the slots. Absorbent cotton and a water-absorbing plate are also provided outside the sealing gasket, and a connecting component is provided between the water-absorbing plate and the desiccant. The desiccant, absorbent cotton, and water-absorbing plate in the drying boxes all have water-absorbing properties, quickly absorbing water at the connection between the automotive sunroof plastic component and the glass plate. This provides good waterproofing at the connection between the automotive sunroof plastic component and the glass plate, preventing rainwater from seeping in from the outer edge of the automotive sunroof plastic component and causing corrosion to internal parts, thus extending its service life.

[0004] However, while the device achieves waterproofing through its design of a drying box, desiccant, absorbent cotton, and absorbent board, it still has significant shortcomings. First, the desiccant has a limited capacity and easily saturates in rainy or high-humidity environments, requiring frequent replacement, increasing maintenance costs and inconvenience. Second, the absorbent cotton and absorbent board may become saturated or age and fail after prolonged use, leading to a decline in waterproofing performance. Furthermore, the device lacks an active drainage design, such as a drainage channel or pipe, relying solely on the desiccant and absorbent materials to passively absorb water, which cannot quickly drain large amounts of rainwater, potentially causing water accumulation in extreme weather and affecting the overall waterproofing effect. These problems limit the long-term reliability and practicality of the device. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides a plastic part for automobile sunroof, which solves the problems of the lack of reliable sealing and drainage performance and convenient maintenance and replacement functions in the existing device.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a plastic part for an automobile sunroof, comprising a plastic frame, a rubber seal, and a glass plate. The glass plate is disposed inside the plastic frame, and the rubber seal is disposed on the plastic frame. Multiple shaped meshes are disposed inside the plastic frame, and foamed silicone is disposed inside the shaped meshes. Two drainage channels are provided at one end of the foamed silicone, and a drainage groove is provided at the lower end of the drainage channels. The drainage groove is connected to the automobile sunroof drainage pipe. The shaped mesh is a mesh structure woven from high-strength fibers, which has lightweight, high toughness, and temperature resistance, and is used to enhance the mechanical properties and shape stability of the foamed silicone. The two drainage channels are designed with an inclined center, which can guide rainwater to flow into the drainage groove and finally be discharged from the automobile sunroof drainage pipe.

[0007] When using this device, the glass plate is horizontally inserted into the rubber pad along the first slot. The rubber pad deforms, and due to the design of the first slot, the rubber in the horizontal direction of the slot can undergo large deformation, allowing the rubber pad to grip the glass plate, improving the sealing of the glass plate and preventing rainwater from flowing directly into the car. The inserts in the rubber seal are then inserted into the second slots respectively. The first slot and the foam silicone provide sufficient operating space for the glass plate during installation, and can buffer the vibration of the glass plate when the car is moving. Rainwater is first largely displaced by the rubber ring of the rubber seal, and a small portion flows along the rubber ring due to the surface tension and capillary action of the water droplets. At this time, the inserts can guide the rainwater to flow into the plastic frame, along the foam silicone, plastic shell and drainage channel, and finally collect in the drainage channel and be discharged from the car through the sunroof drain pipe connected to the drainage channel.

[0008] Preferably, the drainage channel is connected to the plastic shell, a waterproof plate is provided on one side of the plastic shell, a rubber pad is provided on one side of the waterproof plate, and a first groove is provided in the rubber pad. The first groove design can provide deformation space for the rubber pad without damaging the rubber pad. The waterproof plate is tightly connected to the rubber pad and the plastic shell to prevent rainwater from seeping into the car.

[0009] Preferably, a second slot is provided between the shaped meshes, which provides installation space for the insert and sufficient space for drainage.

[0010] Preferably, a plug is inserted into the second slot. The plug is fixedly connected to the rubber ring. The plug has a trapezoidal cross-section, which allows it to be quickly inserted into the second slot. The trapezoidal bevel can also buffer the pushing force of the plug on the foamed silicone and the shaping mesh, reducing damage to the internal structure of the rubber seal when it is installed inside the plastic frame.

[0011] Preferably, the plastic frame is provided with a first cover and a second cover, and the motor inside the car motor compartment can control the movement of the first cover and the second cover.

[0012] This utility model provides a plastic part for automotive sunroofs. It has the following beneficial effects:

[0013] This plastic component for automotive sunroofs achieves excellent sealing, drainage, and shock absorption performance through a multi-layered structural design. First, the rubber seal and glass panel are tightly interlocked by a rubber pad (107) to form the first sealing barrier, preventing rainwater from directly seeping into the vehicle. Second, the drainage channel and drainage trough constitute an efficient drainage system. Rainwater flows naturally into the drainage trough through the inclined and centered drainage channel and is finally discharged through the sunroof drain pipe, avoiding water accumulation. In addition, the foamed silicone and shaped mesh provide good shock absorption, which can absorb the vibration and impact during vehicle operation, reduce noise transmission, and improve driving comfort.

[0014] This plastic component for automotive sunroofs features a first and second slot interlocking design, enabling quick installation and replacement of the glass panel and rubber ring. The trapezoidal cross-section of the insert allows for easy insertion into the second slot, while the beveled edge of the trapezoid buffers the thrust during installation, preventing damage to the foam silicone and molding mesh. The rubber ring fits tightly against the inner wall of the plastic frame, ensuring a tight seal. Furthermore, the first slot provides deformation space for the rubber gasket, making glass panel installation more convenient. This modular design not only simplifies the installation process but also reduces maintenance costs. Users can quickly replace the rubber seal without disassembling the sunroof assembly, significantly improving ease of use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the plastic frame structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the plastic frame of this utility model;

[0018] Figure 4 This is a schematic diagram of the rubber seal structure of this utility model;

[0019] Figure 5 For the present utility model Figure 2 An enlarged schematic diagram of structure A in the middle.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Plastic frame; 101. Foamed silicone; 102. Shaped mesh; 103. Plastic shell; 104. Drainage channel; 105. Drainage groove; 106. First empty groove; 107. Rubber pad; 108. Waterproof board; 109. Second empty groove; 2. First cover; 3. Glass plate; 4. Rubber seal; 401. Rubber ring; 402. Insert block; 5. Second cover. Detailed Implementation

[0022] 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.

[0023] Example 1, please refer to Figures 1-5 This utility model embodiment provides a plastic component for an automotive sunroof, including a plastic frame 1, a rubber seal 4, and a glass panel 3. The plastic frame 1 contains the glass panel 3, and the plastic frame 1 has a rubber seal 4. The plastic frame 1 contains multiple shaped meshes 102, and the shaped meshes 102 contain foamed silicone 101. One end of the foamed silicone 101 has two drainage channels 104, and the lower end of the drainage channels 104 has a drainage groove 105. The drainage groove 105 is connected to the drainage pipe of the automotive glass panel 3. The foamed silicone 101 fills the gaps between the shaped meshes 102 to form an elastic buffer layer, which can effectively absorb the impact force of the glass panel 3 during installation and when the car is running. The drainage channels 104 are located at one end of the foamed silicone 101, and their inclined and centered design is connected to the drainage groove 105 to ensure that rainwater can flow naturally into the drainage groove 105 along the drainage channels 104 and be discharged through the automotive sunroof drainage pipe, preventing water from seeping into the car.

[0024] Please refer to Implementation Column 2. Figures 1-5 In this embodiment, the drainage channel 104 is connected to the plastic shell 103. A waterproof plate 108 is provided on one side of the plastic shell 103, and a rubber pad 107 is provided on one side of the waterproof plate 108. A first groove 106 is provided in the rubber pad 107. The first groove 106 provides deformation space for the rubber pad 107, so that it can undergo elastic deformation when the glass plate 3 is installed, tightly bite the glass plate 3, and improve the sealing performance.

[0025] A second slot 109 is provided between the shaped mesh 102. The second slot 109 not only provides installation space for the insert 402, but also provides a drainage channel. The second slot 109 can form a continuous drainage path with the drainage channel 104 and the drainage ditch 105 to ensure that rainwater can be discharged quickly. The second slot 109 reduces the weight of the overall structure, and at the same time provides space for the elastic deformation of the foamed silicone 101, avoiding structural damage caused by compression.

[0026] A plug 402 is inserted into the second slot 109. The plug 402 is fixedly connected to the rubber ring 401. The rubber ring 401 fits tightly with the plastic frame 1 to form a sealing barrier, reducing rainwater infiltration. The trapezoidal design of the plug 402 also allows it to be quickly inserted into the second slot 109, improving installation efficiency.

[0027] The plastic frame 1 is provided with a first cover 2 and a second cover 5. The opening and closing of the first cover 2 and the second cover 5 on the plastic frame 1 in this application are existing technologies, and the specific structure and working principle will not be described here.

[0028] It should be noted that in this embodiment, when using this device, the glass plate 3 is horizontally inserted into the rubber pad 107 along the first slot 106. The rubber pad 107 undergoes elastic deformation, tightly gripping the glass plate 3 and improving the sealing performance. The inserts 402 in the rubber seal 4 are inserted into the second slots 109 respectively. The trapezoidal design of the inserts 402 allows for quick installation and buffers the pushing force on the foam silicone 101 and the shaping mesh 102. The first slot 106 and the foam silicone 101 provide sufficient operating space for the installation of the glass plate 3, and at the same time can buffer the vibration when the vehicle is driving. Rainwater is first discharged by the rubber ring 401 of the rubber seal 4. A small amount of rainwater flows along the rubber ring 401 and is guided into the plastic frame 1 through the inserts 402. It flows along the foam silicone 101, the plastic shell 103 and the drainage channel 104, and finally collects in the drainage channel 105 and is discharged from the car through the car sunroof drainage pipe connected to the drainage channel 105.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A plastic component for an automotive sunroof, comprising a plastic frame (1), a rubber seal (4), and a glass panel (3), wherein the glass panel (3) is disposed within the plastic frame (1), and the rubber seal (4) is disposed on the plastic frame (1), characterized in that: The plastic frame (1) is provided with multiple shaping meshes (102), and the shaping meshes (102) are provided with foamed silicone (101). One end of the foamed silicone (101) is provided with two drainage channels (104), and the lower end of the drainage channel (104) is provided with a drainage groove (105). The drainage groove (105) is connected to the drainage pipe of the car glass panel (3).

2. The plastic part for an automobile sunroof according to claim 1, characterized in that: The drainage channel (104) is connected to the plastic shell (103). A waterproof plate (108) is provided on one side of the plastic shell (103), and a rubber pad (107) is provided on one side of the waterproof plate (108). A first groove (106) is provided in the rubber pad (107).

3. A plastic part for an automotive sunroof according to claim 1, characterized in that: A second slot (109) is provided between the shaped mesh (102).

4. A plastic part for an automotive sunroof according to claim 3, characterized in that: A plug (402) is inserted into the second slot (109), and the plug (402) is fixedly connected to the rubber ring (401).

5. A plastic part for an automotive sunroof according to claim 1, characterized in that: The plastic frame (1) is provided with a first cover (2) and a second cover (5).

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