Integrally-formed wood grain leather electronic product shell
By using pre-applied technology of separator film and quantitative resin or glue in wood grain leather electronic product casings, the problem of uncontrollable resin penetration is solved, the appearance defects are eliminated and the performance is improved, meeting 3C testing standards and high-end aesthetic requirements.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN RENSHAN PRECISION TECH CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-21
AI Technical Summary
In existing technologies, the resin penetration of wood veneer is uncontrollable, resulting in appearance defects such as glue overflow and blurred wood grain in the integrated molding process of wood grain leather electronic product shells. In addition, the wear resistance and tear resistance are insufficient, making it difficult to meet the 3C product testing standards.
By employing a pre-applied technique involving a barrier membrane and a fixed amount of resin or adhesive, a barrier membrane is placed between the prepreg assembly and the engineered wood structure. A fixed amount of adhesive or resin is pre-applied to the side of the barrier membrane facing the engineered wood structure. By precisely calculating the porosity to match the amount of resin used, it is ensured that the resin only penetrates into the gaps between the wood veneers, thus blocking the resin penetration of the prepreg assembly.
It solves the problem of uncontrollable resin penetration, maintains the visual effect and tactile feel of natural wood grain, and enhances the wear resistance and tear resistance of engineered wood structures, meeting 3C testing standards and high-end aesthetic requirements.
Smart Images

Figure CN224154457U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic product technology, and in particular to a one-piece molded wood grain leather electronic product casing. Background Technology
[0002] Current mobile phone design trends favor blending natural wood veneer textures with technology, using engineered wood materials such as wood veneer as the casing. However, wood veneer itself is porous and lacks properties such as wear resistance, tear resistance, and temperature and humidity resistance, requiring reinforcement with resin to meet 3C product testing standards. The actual production challenge lies in the fact that in the unibody molding process, the semi-cured resin, when activated under high temperature and pressure, can flow and permeate uncontrollably. Different wood veneers require customized resin filling amounts due to variations in texture density. This mismatch between material characteristics and process parameters makes precise control of resin penetration difficult, leading to issues such as excess resin on the surface or insufficient resin penetration resulting in weak adhesion and delamination, ultimately resulting in a high defect rate for engineered wood casings.
[0003] Therefore, it is necessary to provide a one-piece molded wood grain leather electronic product casing with controllable resin penetration. Utility Model Content
[0004] The purpose of this invention is to provide a one-piece molded wood grain leather electronic product casing with controllable resin penetration.
[0005] To achieve the above objectives, this utility model provides an integrally molded wood grain leather electronic product casing, including a prepreg assembly, a partition film, and a engineered wood structure. The partition film is disposed between the prepreg assembly and the engineered wood structure, separating the prepreg assembly from the engineered wood structure. A first resin is disposed on the prepreg assembly, which is fixedly connected to the partition film through the first resin. A certain amount of adhesive or a second resin is disposed on the side of the partition film facing the engineered wood structure. The partition film is fixedly connected to the engineered wood structure through the adhesive or the second resin, and the partition film serves to block the first resin to prevent the first resin from penetrating into the engineered wood structure.
[0006] Preferably, the prepreg assembly includes at least two prepreg bodies that are stacked sequentially, and each prepreg body is provided with the first resin.
[0007] Preferably, the prepreg body, the partition film, and the engineered wood structure have the same shape.
[0008] Preferably, the prepreg body has a first camera hole for the camera module to pass through, the partition membrane has a second camera hole for the camera module to pass through, and the engineered wood structure has a third camera hole for the camera module to pass through, and the first camera hole, the second camera hole and the third camera hole are interconnected.
[0009] Preferably, the prepreg body has a first protrusion, and the first camera hole is formed on the first protrusion.
[0010] Preferably, the partition membrane is provided with a second protrusion, and the second camera hole is formed on the second protrusion.
[0011] Preferably, the engineered wood structure has a third protrusion, and the third camera hole is formed on the third protrusion.
[0012] Preferably, the side of the partition membrane facing the semi-cured sheet assembly is provided with adhesive or a third resin.
[0013] Preferably, the partition film can be an OC film, a PET film, or a PVC film.
[0014] Compared with existing technologies, this utility model's one-piece molded wood grain leather electronic product casing employs a pre-applied separator membrane and a pre-applied amount of resin or adhesive. By placing a separator membrane between the semi-cured sheet assembly and the engineered wood structure, and pre-applying a pre-applied amount of adhesive or a second resin to the side of the separator membrane facing the engineered wood structure, the amount of adhesive or resin is precisely calculated to match the porosity of the wood veneer. This ensures that under high temperature and pressure, the adhesive or second resin on the separator membrane only penetrates directionally into the gaps between the wood veneer layers of the engineered wood structure. The separator membrane physically blocks the first resin from penetrating into the engineered wood structure, completely solving the appearance defects such as glue overflow and blurred wood grain caused by uncontrollable resin penetration in traditional processes. Furthermore, the pre-applied amount of adhesive or second resin only fills the loose layer of the wood veneer in the engineered wood structure without penetrating the decorative texture surface. This maintains the tactile and visual effect of the natural wood grain while enhancing the wear resistance and tear resistance of the engineered wood structure through complete gap filling, allowing the material to simultaneously meet 3C testing standards and high-end aesthetic requirements. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the one-piece molded wood grain leather electronic product casing of this utility model.
[0016] Figure 2 This is an exploded view of the one-piece molded wood grain leather electronic product casing of this utility model. Detailed Implementation
[0017] To explain the technical content and structural features of this utility model in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.
[0018] Please see Figure 1 and Figure 2 The integrated wood grain leather electronic product casing 100 of this utility model includes a semi-cured sheet assembly 1, a partition film 2, and a engineered wood structure 3. The partition film 2 is disposed between the semi-cured sheet assembly 1 and the engineered wood structure 3 and separates the semi-cured sheet assembly 1 and the engineered wood structure 3. A first resin is disposed on the semi-cured sheet assembly 1, and the semi-cured sheet assembly 1 is fixedly connected to the partition film 2 through the first resin. A certain amount of glue or a second resin is disposed on the side of the partition film 2 facing the engineered wood structure 3. The partition film 2 is fixedly connected to the engineered wood structure 3 through glue or the second resin, and the partition film 2 is used to block the first resin to prevent the first resin from penetrating into the engineered wood structure 3.
[0019] The integrated wood grain leather electronic product casing 100 of this utility model provides a partition membrane 2 between the semi-cured sheet assembly 1 and the engineered wood structure 3, and pre-coates a fixed amount of adhesive or second resin on the side of the partition membrane 2 facing the engineered wood structure 3. By accurately calculating the porosity of the wood veneer to match the amount of adhesive or resin, it is ensured that when subjected to high temperature and pressure, the adhesive or second resin on the partition membrane 2 only penetrates into the gaps between the wood veneers of the engineered wood structure 3 in a directional manner, while the partition membrane 2 physically blocks the first resin of the semi-cured sheet assembly 1 from penetrating into the engineered wood structure 3.
[0020] Please see Figure 2 In one embodiment, the prepreg assembly 1 includes at least two prepreg bodies 11 stacked sequentially, each prepreg body 11 having a first resin disposed thereon. Specifically, in this embodiment, the number of prepreg bodies 11 is three. However, this is not a limitation; for example, in other embodiments, the prepreg assembly 1 may have one prepreg body 11, or two or four equal numbers of prepreg bodies 11.
[0021] Please see Figure 1 and Figure 2 In one embodiment, the prepreg body 11, the separator film 2, and the engineered wood structure 3 have the same shape. Specifically, the prepreg body 11, the separator film 2, and the engineered wood structure 3 are shaped like a mobile phone casing, making the integrally molded wood grain leather electronic product casing 100 of this invention resemble a mobile phone battery casing. However, this is not a limitation; for example, the prepreg body 11, the separator film 2, and the engineered wood structure 3 can also be shaped like a tablet computer casing, making the integrally molded wood grain leather electronic product casing 100 of this invention resemble a tablet computer casing.
[0022] Please see Figure 1 and Figure 2In one embodiment, the prepreg body 11 is provided with a first camera hole 111 for the camera module to pass through, the partition membrane 2 is provided with a second camera hole 21 for the camera module to pass through, and the engineered wood structure 3 is provided with a third camera hole 31 for the camera module to pass through, and the first camera hole 111, the second camera hole 21 and the third camera hole 31 are interconnected.
[0023] In one embodiment, the prepreg body 11 is provided with a first protrusion 112, and a first camera hole 111 is formed on the first protrusion 112.
[0024] In one embodiment, the partition membrane 2 is provided with a second protrusion 22, and the second camera hole 21 is formed on the second protrusion 22.
[0025] In one embodiment, the engineered wood structure 3 is provided with a third protrusion 32, and a third camera hole 31 is formed on the third protrusion 32.
[0026] Please see Figure 2 In one embodiment, the side of the partition film 2 facing the semi-cured sheet assembly 1 is provided with adhesive or a third resin. The adhesive or third resin on the side of the partition film 2 facing the semi-cured sheet assembly 1 can be used to strengthen the connection strength with the semi-cured sheet body 11 of the semi-cured sheet assembly 1, thus fully ensuring the structural strength of the integrally molded wood grain leather electronic product shell 100 of this utility model.
[0027] Please see Figure 2 The partition membrane 2 may be made of OC film (i.e., cured film protective layer), PET film (i.e., polyester film) or PVC film (polyvinyl chloride), but is not limited to these.
[0028] In summary, the one-piece molded wood grain leather electronic product casing 100 of this utility model employs a partition membrane 2 and a pre-applied quantitative resin or adhesive technology. By setting the partition membrane 2 between the semi-cured sheet group 1 and the engineered wood structure 3, and pre-applying a quantitative amount of adhesive or second resin on the side of the partition membrane 2 facing the engineered wood structure 3, and by precisely calculating the porosity of the wood veneer to match the amount of adhesive or resin, it is ensured that under high temperature and pressure, the adhesive or second resin on the partition membrane 2 only penetrates directionally into the gaps between the wood veneers of the engineered wood structure 3. Meanwhile, the partition membrane 2 physically blocks the first resin of the semi-cured sheet group 1 from penetrating into the engineered wood structure 3, completely solving the appearance defects such as glue overflow and blurred wood grain caused by uncontrollable resin penetration in traditional processes. Secondly, the quantitative amount of adhesive or second resin only fills the loose layer of the wood veneer of the engineered wood structure 3 without penetrating the surface of the decorative texture, maintaining the tactile and visual effects of the natural wood grain, and enhancing the wear resistance and tear resistance of the engineered wood structure 3 by completely filling the gaps, so that the material simultaneously meets 3C testing standards and high-end aesthetic requirements.
[0029] The above-disclosed examples are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall fall within the scope of the present utility model.
Claims
1. An integrally formed wood grain leather electronic product case, characterized by, The invention includes a prepreg assembly, a partition film, and a engineered wood structure. The partition film is disposed between the prepreg assembly and the engineered wood structure, separating the prepreg assembly from the engineered wood structure. The prepreg assembly is provided with a first resin and is fixedly connected to the partition film through the first resin. A certain amount of adhesive or a second resin is provided on the side of the partition film facing the engineered wood structure. The partition film is fixedly connected to the engineered wood structure through the adhesive or the second resin, and the partition film serves to block the first resin to prevent the first resin from penetrating into the engineered wood structure.
2. The one-piece wood grain leather electronic product cover according to claim 1, wherein, The prepreg assembly includes at least two prepreg bodies that are stacked sequentially, and each prepreg body is provided with the first resin.
3. The one-piece wood grain leather electronic product cover of claim 2, wherein, The prepreg body, the partition membrane, and the engineered wood structure have the same shape.
4. The one-piece wood grain leather electronic product cover of claim 2, wherein, The prepreg body has a first camera hole for the camera module to pass through, the partition membrane has a second camera hole for the camera module to pass through, and the engineered wood structure has a third camera hole for the camera module to pass through, and the first camera hole, the second camera hole and the third camera hole are interconnected.
5. The one-piece wood grain leather electronic product cover of claim 4, wherein, The prepreg body has a first protrusion, and the first camera hole is formed on the first protrusion.
6. The one-piece molded wood grain leather electronic product casing according to claim 4, characterized in that, The partition membrane is provided with a second protrusion, and the second camera hole is opened on the second protrusion.
7. The one-piece wood grain leather electronic product cover of claim 4, wherein, The engineered wood structure is provided with a third protrusion, and the third camera hole is opened on the third protrusion.
8. The one-piece wood grain leather electronic product cover of claim 1, wherein, The partition membrane is provided with adhesive or a third resin on the side facing the semi-cured sheet assembly.
9. The one-piece wood grain leather electronic product cover of claim 1, wherein, The partition film can be made of OC film, PET film or PVC film.