Automobile trim panel injection molding part with internal supporting structure
By introducing support frames and ventilation plates into automotive trim injection molding parts, the problem of insufficient compressive support in injection molding parts is solved, enhancing support strength and breathability, extending service life and improving in-vehicle air quality.
Patent Information
- Application Number
- CN202423071902.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-12
AI Technical Summary
Traditional automotive trim injection molded parts have weak compressive strength, making them prone to breakage during use and shortening their service life.
An injection-molded automotive trim panel with an internal support structure was designed, including an outer protective frame, an adsorption plate, a wear-resistant layer, a pressure-resistant support mechanism, and a breathable plate. The overall support performance is enhanced by connecting the support frame with the adsorption plate and the breathable plate, and the breathability and odor adsorption are improved by the design of vent holes and agent placement slots.
It improves the support strength and stability of injection molded parts, extends service life, reduces odor, keeps the air inside the vehicle fresh, and avoids structural damage and stress concentration.
Smart Images

Figure CN223508210U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive interior technology, specifically to an injection-molded automotive trim panel with an internal support structure. Background Technology
[0002] Automotive interiors mainly refer to automotive products used in the modification of the car interior. Automotive trim injection molded parts are generally plastic products manufactured through injection molding process. The plastic material is heated to a molten state and then injected into the cavity of the mold under high pressure. The injection molded part cools and solidifies inside the mold cavity, and then the injection molded part is removed from the mold cavity to complete the entire processing process.
[0003] During use, traditional injection molded parts have relatively weak compressive strength, which makes them prone to breakage and shortens their service life.
[0004] To overcome the aforementioned deficiencies, existing technology (Chinese patent CN218020611U, published on 2022-12-13) provides an automotive interior injection molded part with a cushioning structure. The outer upper surface is covered with a waterproof and breathable layer. In this improved interior injection molded part, the cushioning layer distributes the force exerted on the upper surface of the interior injection molded part to the lower surface of the trapezoidal load-bearing frame, improving its load-bearing capacity. Combined with the elasticity of a spring, the interior injection molded part possesses elastic properties, providing excellent cushioning during bumpy driving and enhancing driver comfort. Through the adsorption and antibacterial layers, the activated carbon inside the adsorption layer absorbs sweat and its odor, ensuring fresh air inside the vehicle. Furthermore, the PE antibacterial masterbatch inside the antibacterial layer prevents bacterial growth from sweat, giving the interior injection molded part excellent antibacterial properties.
[0005] The aforementioned institutions utilize this. Utility Model Content
[0006] The purpose of this utility model is to provide an automotive trim panel injection molded part with an internal support structure, so as to solve the problem mentioned in the background art that the traditional injection molded parts have weak compressive support performance during use, which makes the injection molded parts prone to breakage and shortens the service life of the injection molded parts.
[0007] To achieve the above objectives, the present invention provides the following technical solution: an injection-molded automotive trim panel with an internal support structure, comprising an outer protective frame, wherein an adsorption plate is provided on the inner side of the outer protective frame, and a wear-resistant layer is provided on the top of the adsorption plate;
[0008] A partition layer is provided at the lower end between the inner sides of the outer protective frame. A compression support mechanism for increasing the strength of the adsorption plate is provided below the adsorption plate. The compression support mechanism includes a support frame, which is located at the bottom of the adsorption plate. An auxiliary support block is provided inside the support frame. By utilizing the compression support mechanism between the adsorption plate and the first ventilated plate, the overall support performance of the injection molded part can be increased, preventing the injection molded part from breaking during support and extending the service life of the injection molded part. The top and bottom ends of the support frame are in contact with the adsorption plate and the first ventilated plate, respectively, so that the adsorption plate and the first ventilated plate will not break due to stress during use.
[0009] A first ventilated plate is provided below the support frame, and a ventilated mechanism for gas circulation is provided at the bottom end of the first ventilated plate.
[0010] Furthermore, the cross-section of the support frame is trapezoidal, and the inner side of the support frame is connected to the side of the auxiliary support block.
[0011] Furthermore, the adsorption plate has a reagent placement groove inside and a fixing hole at the top.
[0012] Furthermore, the drug placement slots are evenly distributed inside the adsorption plate, and the positions of the fixing holes correspond to the drug placement slots.
[0013] Furthermore, the ventilation mechanism includes a second ventilation plate, and the surface of the second ventilation plate is provided with a second ventilation hole, while the surface of the first ventilation plate is provided with a first ventilation hole.
[0014] Furthermore, the positions of the first vent and the second vent are offset from each other, and the sizes of the first vent and the second vent are equal.
[0015] Furthermore, fastening bolts are provided at the four corners of the top of the wear-resistant layer, and the fastening bolts pass through the wear-resistant layer and extend to the bottom of the partition layer.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. By utilizing the anti-compression support mechanism set between the adsorption plate and the first ventilated plate, the overall support performance of the injection molded part can be increased, preventing the injection molded part from breaking during support and extending the service life of the injection molded part. The top and bottom ends of the support frame are connected to the adsorption plate and the first ventilated plate respectively, so that the adsorption plate and the first ventilated plate will not break due to stress during use.
[0018] Furthermore, the auxiliary support blocks can reinforce and support the gaps in the support frame. The compressive support mechanism increases the overall strength and stability, effectively dispersing and resisting external loads, thereby preventing the structure from deforming or being damaged.
[0019] Furthermore, by filling the agent placement groove inside the adsorption plate with bamboo charcoal particles, the injection molded part can adsorb odors through the fixing holes, thereby effectively reducing the odors generated in the car during long-term use and keeping the air inside the car clean.
[0020] 2. The first and second vent plates can improve the air permeability of the injection molded parts during use, thereby reducing odor in the vehicle. The first and second vent holes on the surfaces of the first and second vent plates can also help with air permeability. The first and second vent holes are staggered, which increases the length of the gas flow path.
[0021] Furthermore, by rationally designing the staggered layout of the ventilation holes, the stress can be distributed more evenly when the structure is subjected to external loads, thereby avoiding structural damage caused by stress concentration. Attached Figure Description
[0022] Figure 1 This is a front view structural diagram of the present invention;
[0023] Figure 2 This is a frontal sectional view of the present invention.
[0024] Figure 3 This is a top view of the adsorption mechanism of this utility model;
[0025] Figure 4 This is a partially enlarged structural schematic diagram of the compressive support mechanism of this utility model;
[0026] Figure 5 This is a schematic diagram of the compressive support mechanism of this utility model;
[0027] Figure 6 This is a front view of the exploded structure of this utility model;
[0028] Figure 7 This is a side view of the adsorption mechanism of this utility model.
[0029] In the diagram: 1. Wear-resistant layer; 2. Adsorption plate; 3. Fixing hole; 4. Agent placement tank; 5. Support frame; 6. Auxiliary support block; 7. First ventilated plate; 8. First ventilated hole; 9. Second ventilated plate; 10. Second ventilated hole; 11. Separator layer; 12. Outer protective frame; 13. Fastening bolts. Detailed Implementation
[0030] 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.
[0031] Example 1: As Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 The technical solution shown addresses the problem that traditional injection molded parts have weak compressive strength during use, leading to breakage and shortened service life. This automotive trim panel injection molded part with an internal support structure discloses a compressive strength support mechanism, including an outer protective frame 12. An adsorption plate 2 is located inside the outer protective frame 12, and a wear-resistant layer 1 is located at the top of the adsorption plate 2. A partition layer 11 is located at the lower end between the inner sides of the outer protective frame 12. A compressive strength support mechanism is located below the adsorption plate 2, including a support frame 5 located at the bottom of the adsorption plate 2. An auxiliary support block 6 is located inside the support frame 5. The cross-section of the support frame 5 is trapezoidal, and the inner side of the support frame 5 connects to the side of the auxiliary support block 6. Fastening bolts 13 are located at the four corners of the top of the wear-resistant layer 1, and these bolts 13 pass through the wear-resistant layer 1 and extend to the bottom of the partition layer 11.
[0032] In this example, the compressive support mechanism provided between the adsorption plate 2 and the first ventilated plate 7 can increase the overall support performance of the injection molded part, prevent the injection molded part from breaking during support, and extend the service life of the injection molded part. The top and bottom ends of the support frame 5 are connected to the adsorption plate 2 and the first ventilated plate 7 respectively, so that the adsorption plate 2 and the first ventilated plate 7 are supported and will not break due to force during use.
[0033] The auxiliary support block 6 can support and reinforce the gaps of the support frame 5, thereby increasing the overall strength and stability of the compression support mechanism, effectively dispersing and resisting external loads, and preventing the structure from deforming or being damaged. At the same time, due to the holes and slots opened in the gaps of the support frame 5 and their cooperation with the auxiliary support block 6, the support frame 5 can increase the strength of the injection molded part without increasing the weight of the injection molded part itself, thus improving the overall energy efficiency and performance.
[0034] Example 2: Figure 1 , Figure 2 , Figure 3 , Figure 4, Figure 6 and Figure 7 The technical solution shown addresses the following problem: the automotive trim panel injection molding part with an internal support structure discloses an adsorption mechanism. The adsorption plate 2 has a drug placement groove 4 inside, and a fixing hole 3 is provided at the top of the adsorption plate 2. The drug placement grooves 4 are evenly distributed inside the adsorption plate 2, and the positions of the fixing holes 3 correspond to the drug placement grooves 4.
[0035] In this example, by filling the agent placement groove 4 inside the adsorption plate 2 with bamboo charcoal particles, the injection molded part can adsorb odors through the fixing hole 3, thereby effectively reducing the odors generated in the car during long-term use and keeping the air inside the car clean.
[0036] The fixing hole 3 also allows the bamboo charcoal particles placed inside the medicine placement slot 4 to absorb moisture, preventing the air inside the car from becoming too humid and increasing the comfort of using the car.
[0037] Example 3: Figure 1 , Figure 2 and Figure 6 The technical solution shown addresses the following problem: The automotive trim panel injection molding part with an internal support structure discloses a ventilation mechanism. A first ventilation plate 7 is provided below the support frame 5, and a ventilation mechanism for gas flow is provided at the bottom end of the first ventilation plate 7. The ventilation mechanism includes a second ventilation plate 9, and a second ventilation hole 10 is provided on the surface of the second ventilation plate 9. A first ventilation hole 8 is provided on the surface of the first ventilation plate 7. The positions of the first ventilation hole 8 and the second ventilation hole 10 are offset from each other, and the sizes of the first ventilation hole 8 and the second ventilation hole 10 are equal.
[0038] In this example, the first vent plate 7 and the second vent plate 9 can improve the air permeability of the injection molded part during use, thereby reducing odor in the vehicle. The first vent hole 8 and the second vent hole 10 opened on the surfaces of the first vent plate 7 and the second vent plate 9 can assist in air permeation. The first vent hole 8 and the second vent hole 10 are staggered, which increases the length of the gas flow path. By reasonably designing the staggered layout of the vent holes, the structure can distribute stress more evenly when subjected to external loads, thereby avoiding structural damage caused by stress concentration.
[0039] 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. An injection molded automotive trim panel with an internal support structure, comprising an outer protective frame (12), wherein an adsorption plate (2) is provided on the inner side of the outer protective frame (12), and a wear-resistant layer (1) is provided on the top of the adsorption plate (2). Its features are: A partition layer (11) is provided at the lower end between the inner sides of the outer protective frame (12). A pressure-resistant support mechanism for increasing its own strength is provided below the adsorption plate (2). The pressure-resistant support mechanism includes a support frame (5), and the support frame (5) is located at the bottom end of the adsorption plate (2). An auxiliary support block (6) is provided inside the support frame (5). A first ventilated plate (7) is provided below the support frame (5), and a ventilated mechanism for gas flow is provided at the bottom end of the first ventilated plate (7).
2. The automotive trim panel injection molding part with an internal support structure according to claim 1, characterized in that: The cross-section of the support frame (5) is trapezoidal, and the side inside the support frame (5) is connected to the side of the auxiliary support block (6).
3. The automotive trim panel injection molded part with an internal support structure according to claim 2, characterized in that: The adsorption plate (2) has a medicine placement groove (4) inside, and a fixing hole (3) is provided at the top of the adsorption plate (2).
4. The automotive trim panel injection molded part with an internal support structure according to claim 3, characterized in that: The drug placement slots (4) are evenly distributed inside the adsorption plate (2), and the positions of the fixing holes (3) correspond to the drug placement slots (4).
5. The automotive trim panel injection molded part with an internal support structure according to claim 1, characterized in that: The ventilation mechanism includes a second ventilation plate (9), and the surface of the second ventilation plate (9) is provided with a second ventilation hole (10), and the surface of the first ventilation plate (7) is provided with a first ventilation hole (8).
6. The automotive trim panel injection molding part with an internal support structure according to claim 5, characterized in that: The positions of the first vent (8) and the second vent (10) are offset from each other, and the sizes of the first vent (8) and the second vent (10) are equal.
7. The automotive trim panel injection molding part with an internal support structure according to claim 1, characterized in that: Fastening bolts (13) are provided at the four corners of the top of the wear-resistant layer (1), and the fastening bolts (13) pass through the wear-resistant layer (1) and extend to the bottom of the partition layer (11).
Citation Information
Patent Citations
Automotive trim injection-molded part with buffer structure
CN218020611U