Spherical cover plate for wearable product
By designing a rough surface and an overflow groove structure at the step of the spherical cover, the problem of poor dirt resistance at the step of traditional wearable products is solved, the adhesive strength between the casing and the cover is enhanced, detachment is prevented, and the product's competitiveness is improved.
Patent Information
- Application Number
- CN202520060703.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-10
AI Technical Summary
The spherical layer and the steps of the casing of traditional wearable products are too smooth, resulting in poor dirt resistance, low dyne value, affecting adhesive strength, making the casing and cover easy to fall off, and reducing product competitiveness.
The substrate and spherical layer of the spherical cover plate are integrally molded. The upper surface of the substrate at the step is a rough surface, while the outer surface of the spherical layer and the lower surface of the substrate are smooth surfaces. Chamfers and overflow grooves are provided on the lower surface of the substrate, and OCA optical adhesive is used to fill the overflow grooves to improve the adhesive strength.
It improves the dirt resistance and dyne value at the step, enhances the adhesive strength between the casing and the cover, prevents product damage, and improves the product's competitiveness.
Smart Images
Figure CN223842326U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid crystal display technology, and more specifically, to a spherical cover plate for wearable products. Background Technology
[0002] Wearable products are becoming increasingly popular and used by more and more people, such as watches and bracelets. In order to pursue a three-dimensional effect, customers usually adopt a design that uses a spherical stepped cover plate wrapped in the case. However, in the traditional structure, the spherical layer and the stepped area wrapped in the case are polished together, which makes the stepped area too smooth. This makes the stepped area susceptible to dirt and causes the dyne value to be low, which affects the adhesive strength of the bonding. This makes the case and cover plate easy to fall off, resulting in product damage and reducing the product's competitiveness. Utility Model Content
[0003] The technical problem to be solved by this utility model is how to improve the dirt resistance and increase the dyne value of the step, so as to improve the adhesive force between the step and the casing, making the casing and the cover less likely to fall off, thereby avoiding product damage and improving the product's competitiveness.
[0004] The technical problem to be solved by this utility model is achieved through the following technical solution:
[0005] To solve the above-mentioned technical problems, this utility model provides a spherical cover for wearable products, which includes a substrate and a spherical layer disposed above the substrate. The cross-section of the substrate and the spherical layer are both circular. The substrate and the spherical layer are integrally formed. The diameter of the spherical layer is smaller than the diameter of the substrate, and a step is formed at the edge of the substrate. The upper surface of the substrate located at the step is a rough surface, and the outer surface of the spherical layer and the lower surface of the substrate are smooth surfaces.
[0006] In a preferred embodiment of the spherical cover plate for wearable products provided by this utility model, a chamfer is provided at the connection between the substrate and the spherical layer.
[0007] In a preferred embodiment of the spherical cover plate for wearable products provided by this utility model, the chamfer is a rounded chamfer.
[0008] In a preferred embodiment of the spherical cover plate for wearable products provided by this utility model, the upper surface of the substrate located at the step is provided with a surface treatment layer to improve surface roughness.
[0009] In a preferred embodiment of the spherical cover plate for wearable products provided by this utility model, the surface treatment layer is a diamond knurled pattern.
[0010] In a preferred embodiment of the spherical cover plate for wearable products provided by this utility model, the surface treatment layer is a frosted layer.
[0011] In a preferred embodiment of the spherical cover plate for wearable products provided by this utility model, a frame-shaped overflow groove is etched on the lower surface of the substrate located in the non-visible area, and light-shielding ink is provided on the edge of the lower surface of the substrate located in the non-visible area. The light-shielding ink is coated on the outer surface of the overflow groove and the lower surface of the substrate.
[0012] In a preferred embodiment of the spherical cover plate for wearable products provided by this utility model, the cross-sectional shape of the overflow groove is V-shaped or semi-circular.
[0013] In a preferred embodiment of the spherical cover plate for wearable products provided by this utility model, the thickness of the substrate is 0.8 mm and the depth of the adhesive overflow groove is 0.05 mm.
[0014] In a preferred embodiment of the spherical cover plate for wearable products provided by this utility model, the lower surface of the substrate is provided with OCA optical adhesive, which is disposed in the area formed by the overflow groove, and the thickness of the OCA optical adhesive is 0.1 mm.
[0015] This utility model has the following beneficial effects:
[0016] Because the upper surface of the substrate located at the step is rough, the dirt resistance of the step is improved and the dyne value is increased, thereby improving the adhesive strength between the step and the housing. This makes the housing and cover less likely to fall off, thus avoiding product damage and improving the product's competitiveness. Attached Figure Description
[0017] To more clearly illustrate the solutions in this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0018] Figure 1 This is a structural schematic diagram of a spherical cover plate for wearable products provided by this utility model.
[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle.
[0020] Figure 3 for Figure 1 Side view.
[0021] Figure 4 for Figure 2 A schematic diagram of the improved structure.
[0022] Explanation of icon numbers:
[0023] 1. Substrate; 2. Spherical layer; 3. Step; 4. Chamfer; 5. Glue overflow groove; 6. OCA optical adhesive. Detailed Implementation
[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0026] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0027] This utility model provides a spherical cover for wearable products, which includes a substrate and a spherical layer disposed above the substrate. The cross-section of the substrate and the spherical layer are both circular. The substrate and the spherical layer are integrally formed. The diameter of the spherical layer is smaller than the diameter of the substrate, and a step is formed at the edge of the substrate. The upper surface of the substrate located at the step is a rough surface, and the outer surface of the spherical layer and the lower surface of the substrate are smooth surfaces.
[0028] Because the upper surface of the substrate located at the step is rough, the dirt resistance of the step is improved and the dyne value is increased, thereby improving the adhesive strength between the step and the housing. This makes the housing and cover less likely to fall off, thus avoiding product damage and improving the product's competitiveness.
[0029] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. The present invention will be described in detail below with reference to the accompanying drawings and embodiments, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0030] Example 1, please refer to Figures 1 to 3 This invention provides a spherical cover for wearable products, comprising a substrate 1 and a spherical layer 2 disposed above the substrate 1. Both the substrate 1 and the spherical layer 2 have circular cross-sections and are integrally formed. The diameter of the spherical layer 2 is smaller than the diameter of the substrate 1, and a step 3 is formed at the edge of the substrate 1. The upper surface of the substrate 1 at the step 3 is a rough surface, while the outer surface of the spherical layer 2 and the lower surface of the substrate 1 are smooth surfaces. Because the upper surface of the substrate 1 at the step 3 is rough, the dirt resistance and dyne value at the step 3 are improved, thereby increasing the adhesive strength between the step 3 and the casing. This makes it less likely for the casing and the cover to detach, thus preventing product damage and enhancing the product's competitiveness.
[0031] Furthermore, a chamfer 4 is provided at the connection between the substrate 1 and the spherical layer 2. In this embodiment, the chamfer 4 is a rounded chamfer 4.
[0032] Furthermore, a surface treatment layer for improving surface roughness is provided on the upper surface of the substrate 1 located at step 3. This surface treatment layer is a diamond knurled or frosted layer, thereby improving the dirt resistance of step 3 and increasing the dyne value to improve the adhesive strength between step 3 and the housing, making the housing and cover less likely to fall off, thereby avoiding product damage and improving the product's competitiveness.
[0033] During production, a circular substrate 1 is provided first. The first step of spherical machining is performed by CNC machining using a diamond-cutting wheel. The machined spherical surface is rough and matte. The spherical surface is then polished using a 2.5D blanket polishing method to achieve a mirror finish. Next, the second step of step 3 is machined by CNC machining. The polished product is then machined a second time, only step 3 needs to be machined. Finally, double-sided polishing is performed. While polishing the edges, scratches on the back of the substrate 1 are also repaired to improve the yield.
[0034] Example 2, please refer to Figure 4 As a further optimization of Embodiment 1, in this embodiment, a frame-shaped overflow groove 5 is etched on the lower surface of the substrate 1 located in the non-visible area. Light-shielding ink is provided at the edge of the lower surface of the substrate 1 located in the non-visible area, and the light-shielding ink is applied to the outer surface of the overflow groove 5 and the lower surface of the substrate 1. Because the overflow groove 5 is provided on the lower surface of the substrate 1, when the OCA optical adhesive 6 is applied, the OCA optical adhesive 6 will be subjected to pressure and overflow outwards. Excess adhesive will flow into and be stored in the overflow groove 5, preventing it from continuing to spread outwards, thereby limiting the extent of overflow. This effectively avoids light leakage caused by the overflow of the OCA optical adhesive 6. The light-shielding ink is provided at the edge of the lower surface of the substrate 1, and the light-shielding ink is applied to the outer surface of the overflow groove 5 and the lower surface of the substrate 1. Since the overflow groove 5 is located in the light-shielding ink area at the edge of the substrate 1, it will not affect the appearance of the product.
[0035] Furthermore, an OCA optical adhesive 6 is disposed on the lower surface of the substrate 1. The OCA optical adhesive 6 is disposed within the area formed by the overflow groove 5. The shape of the overflow groove 5 can be designed to facilitate etching, and the cross-section is not limited to semi-circular, V-shaped, etc. Currently, the industry-standard thickness of the substrate 1 is about 0.8 mm, the thickness of the OCA optical adhesive 6 is about 0.1 mm, and the etching depth of the overflow groove 5 can be designed at 0.05 mm and adjusted according to the actual amount of overflow adhesive.
[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0037] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application 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 specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.
Claims
1. A spherical cover for wearable products, characterized in that, It includes a substrate and a spherical layer disposed above the substrate. The cross-sections of the substrate and the spherical layer are both circular. The substrate and the spherical layer are integrally formed. The diameter of the spherical layer is smaller than the diameter of the substrate, and a step is formed at the edge of the substrate. The upper surface of the substrate located at the step is a rough surface, and the outer surface of the spherical layer and the lower surface of the substrate are smooth surfaces.
2. The spherical cover plate for wearable products according to claim 1, characterized in that, The junction between the substrate and the spherical layer is chamfered.
3. The spherical cover plate for wearable products according to claim 2, characterized in that, The chamfer is a rounded chamfer.
4. The spherical cover plate for wearable products according to claim 1, characterized in that, The upper surface of the substrate located at the step is provided with a surface treatment layer to improve surface roughness.
5. The spherical cover plate for wearable products according to claim 4, characterized in that, The surface treatment layer is a diamond-shaped knurled layer.
6. The spherical cover plate for wearable products according to claim 4, characterized in that, The surface treatment layer is a frosted layer.
7. The spherical cover plate for wearable products according to claim 1, characterized in that, A frame-shaped adhesive overflow groove is etched on the lower surface of the substrate located in the non-visible area. Light-shielding ink is provided on the edge of the lower surface of the substrate located in the non-visible area. The light-shielding ink is coated on the outer surface of the adhesive overflow groove and the lower surface of the substrate.
8. The spherical cover plate for wearable products according to claim 7, characterized in that, The cross-sectional shape of the overflow groove is V-shaped or semi-circular.
9. The spherical cover plate for wearable products according to claim 7, characterized in that, The substrate has a thickness of 0.8 mm and the adhesive overflow groove has a depth of 0.05 mm.
10. The spherical cover plate for wearable products according to claim 7, characterized in that, The lower surface of the substrate is provided with OCA optical adhesive, which is disposed in the area formed by the adhesive overflow groove, and the thickness of the OCA optical adhesive is 0.1 mm.