A cover plate structure positionable in a pocket
By setting slots on the cover plate and equipping it with positioning components, the problem of fixing circular cover plates during the production process is solved, and the assembly accuracy and rotation angle are controlled, supporting automated production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TRULY OPTO ELECTRONICS
- Filing Date
- 2025-07-03
- Publication Date
- 2026-07-14
AI Technical Summary
In existing technologies, circular cover plates are difficult to fix during the production process, resulting in substandard rotational accuracy and affecting the accuracy of automated production and assembly.
A slot is provided on one side of the cover plate, and a positioning element on a matching fixture is provided to form an integral structure. The positioning element limits the cover plate and prevents it from rotating.
It achieves cover plate fixation, ensures assembly accuracy and rotation angle meet customer requirements, avoids FPC misalignment and component damage, and supports automated production.
Smart Images

Figure CN224501428U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of display screen technology, and in particular to a cover plate structure that can be positioned by a slot. Background Technology
[0002] With the improvement of living standards, smart wearable devices such as bracelets and watches are becoming increasingly common and competitive, leading to higher requirements for quality and production costs. The precision of bonding, assembly, and rotation directly affects quality, and automated production is key to improving production efficiency and reducing costs. The difficulty in fixing circular modules during production presents a challenge; therefore, a design solution is proposed that can securely fix circular cover plates and enable automated production. Utility Model Content
[0003] The purpose of this invention is to address the problems existing in the background technology by proposing a cover plate structure that can be positioned by a slot.
[0004] The technical solution of this utility model is a cover plate structure that can be positioned by a slot, including a circular cover plate and a clamp that matches the cover plate. A slot is provided on one side of the cover plate, and a positioning element that matches the slot is provided on the clamp.
[0005] The circular cover plate is assembled with a fixture through slotting, and the cover plate is limited by positioning components to prevent it from rotating.
[0006] Preferably, the slot is set as a semi-circular shape; the diameter of the semi-circular slot is 4mm.
[0007] Preferably, the circular cover plate includes a glass surface layer and an ink layer;
[0008] The ink layer is set in a ring shape, along the back edge of the glass surface layer;
[0009] The back of the glass surface layer remains raised, forming a stepped structure.
[0010] Preferably, the total thickness of the glass surface layer and the ink layer is 1.11 ± 0.05 mm.
[0011] Preferably, the thickness of the stepped structure on the back of the glass surface layer is 0.50±0.05mm.
[0012] Preferably, the clamp includes a base layer and a downwardly recessed mounting portion in the middle;
[0013] The positioning component is set on one side of the mounting part to limit the position of the cover plate; after the cover plate and the fixture are assembled into a whole, the cover plate is processed and the FPC flexible circuit layer is installed in alignment to avoid misalignment.
[0014] Preferably, the top of the clamp is provided with at least one notch; when the cover plate is assembled with the clamp, the edge remains protruding and forms a contact portion relative to the notch.
[0015] Preferably, the mounting portion of the clamp has a depth of 2.1 mm at its middle position to accommodate the stepped structure of the cover plate.
[0016] Preferably, the mounting portion of the fixture has an edge depth of 1.5 mm to accommodate the ink layer and glass surface layer at the edge of the cover plate.
[0017] Preferably, the base area of the fixture is larger than that of the FPC flexible circuit layer; the FPC flexible circuit layer, which is attached to the cover plate, lies flat and extended on the base layer.
[0018] Compared with the prior art, the present invention has the following beneficial technical effects:
[0019] This invention adds a semi-circular groove with a diameter R=4MM to the outer periphery of the circular module cover plate. During the production process, a red bakelite FPC bending fixture can be made according to customer requirements. The cover plate groove can be fixed on the fixture and cannot be rotated at will, ensuring that the relative position accuracy and rotation angle of the assembled module meet customer requirements. Attached Figure Description
[0020] Figure 1 This is a front view of a circular cover plate in the prior art;
[0021] Figure 2 This is a side view of a circular cover plate in the prior art;
[0022] Figure 3 This is a rear view of a circular cover plate in the prior art;
[0023] Figure 4 This is a front view of the improved circular cover plate in an embodiment of this utility model;
[0024] Figure 5 This is a side view of the improved circular cover plate in an embodiment of the present utility model;
[0025] Figure 6 This is a rear view of the improved circular cover plate in an embodiment of this utility model;
[0026] Figure 7 This is a schematic diagram of the fixture in an embodiment of the present utility model;
[0027] Figure 8 This is a schematic diagram of the cover plate after FPC assembly in an embodiment of this utility model;
[0028] Figure 9 This is a schematic diagram of the structure of the blister tray in an embodiment of this utility model.
[0029] Reference numerals: 1. Cover plate; 11. Groove; 12. Glass surface layer; 13. Ink layer; 2. Fixture; 21. Base layer; 22. Mounting part; 23. Positioning element; 24. Notch. Detailed Implementation Example 1
[0030] like Figure 1-3 The diagram shown is a structural schematic of an existing circular cover plate. The circular cover plate is perfectly circular and cannot be fixed by rotation. During the fitting, assembly, and processing, issues may arise due to rotation, leading to substandard accuracy and rotational precision. Figure 2 When bending a circular FPC module, the rotation can cause the FPC to be misaligned. During the module shipping process, the modules are stored on blister trays, and the rotation of the modules can damage the FPC, bump components, and cause displacement, resulting in defects and making it impossible to use automated production equipment.
[0031] Based on this, existing products can be improved, such as... Figure 4-6 As shown, this utility model proposes a slotted cover plate structure, including a circular cover plate 1 and a clamp 2 that matches the cover plate 1. A slot 11 is provided on one side of the cover plate 1, and a positioning element 23 matching the slot 11 is provided on the clamp 2. The circular cover plate 1 is integrated with the clamp 2 through the slot 11, and the positioning element 23 limits the cover plate 1 to prevent rotation. In this embodiment, the slot 11 is semi-circular; the diameter of the semi-circular slot 11 is 4mm. Besides being semi-circular, it can also be designed as other geometric shapes to meet the positioning requirements; including but not limited to triangles and rhombuses. The circular cover plate 1 includes a glass surface layer 12 and an ink layer 13; the ink layer 13 is annular and is provided along the back edge of the glass surface layer 12; the back of the glass surface layer 12 remains raised, forming a stepped structure. The total thickness of the glass surface layer 12 and the ink layer 13 is 1.11 ± 0.05mm. The thickness of the stepped structure on the back of glass layer 12 is 0.50 ± 0.05 mm.
[0032] like Figure 7 As shown, the fixture 2 includes a base layer 21 and a downwardly recessed mounting portion 22 in the middle; a positioning member 23 is disposed on one side of the mounting portion 22 to limit the position of the cover plate 1; after assembling the cover plate 1 and the fixture 2 into a whole, the cover plate 1 is processed to align and install the FPC flexible circuit layer to avoid misalignment. The top of the fixture 2 is provided with at least one notch 24; when the cover plate 1 and the fixture 2 are assembled, the edge remains in an extended state and forms a contact portion relative to the notch 24.
[0033] In this embodiment, the depth of the middle position of the mounting portion of the clamp 2 is 2.1 mm, used to accommodate the stepped structure of the cover plate 1. The depth of the edge position of the mounting portion of the clamp 2 is 1.5 mm, used to accommodate the ink layer 13 and the glass surface layer 12 at the edge of the cover plate 1. As a preferred embodiment, in this embodiment, the area of the base layer 21 of the clamp 2 is larger than that of the FPC flexible circuit layer; the FPC flexible circuit layer adhered to the cover plate 1 lies flat and extended on the base layer 21. Figure 8-9 The image shows a blister pack that works with cover plate 1. The module does not rotate, so there will be no damage to the FPC or components during handling and transportation. The module is in a fixed position and has a consistent orientation during production, so the equipment can be used to automate the loading and unloading process, which improves efficiency.
[0034] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.
Claims
1. A cover plate structure with slot-positionable design, comprising a circular cover plate (1) and a clamp (2) matching the cover plate (1), characterized in that, A slot (11) is provided on one side of the cover plate (1), and a positioning element (23) matching the slot (11) is provided on the clamp (2). The circular cover plate (1) is combined with the clamp (2) through the slot (11) to form a whole. The cover plate (1) is limited by the positioning part (23) to prevent the cover plate (1) from rotating.
2. The slot-positionable cover plate structure according to claim 1, characterized in that, The slot (11) is set as a semi-circle; the diameter of the semi-circular slot (11) is 4mm.
3. The slot-positionable cover plate structure according to claim 1, characterized in that, The circular cover plate (1) includes a glass surface layer (12) and an ink layer (13); The ink layer (13) is set in a ring shape along the back edge of the glass surface layer (12); The back of the glass layer (12) remains raised, forming a stepped structure.
4. The slot-positionable cover plate structure according to claim 3, characterized in that, The total thickness of the glass layer (12) and the ink layer (13) is 1.11 ± 0.05 mm.
5. The slot-positionable cover plate structure according to claim 3, characterized in that, The thickness of the stepped structure on the back of the glass surface layer (12) is 0.50±0.05mm.
6. The cover plate structure with slot-positionable design according to claim 1, characterized in that, The clamp (2) includes a base layer (21) and a recessed mounting part (22) in the middle. The positioning component (23) is set on one side of the mounting part (22) to limit the cover plate (1); after the cover plate (1) and the clamp (2) are assembled into a whole, the cover plate (1) is processed and the FPC flexible circuit layer is installed in alignment to avoid misalignment.
7. The slot-positionable cover plate structure according to claim 6, characterized in that, The top of the clamp (2) is provided with at least one notch (24); when the cover plate (1) is assembled with the clamp (2), the edge remains protruding and forms a contact portion relative to the notch (24).
8. The slot-positionable cover plate structure according to claim 6, characterized in that, The mounting part of the clamp (2) has a depth of 2.1 mm at the middle position, which is used to accommodate the stepped structure of the cover plate (1).
9. The slot-positionable cover plate structure according to claim 6, characterized in that, The mounting portion of the fixture (2) has an edge depth of 1.5 mm, which is used to accommodate the ink layer (13) and glass surface layer (12) at the edge of the cover plate (1).
10. The slot-positionable cover plate structure according to claim 6, characterized in that, The base layer (21) of the fixture (2) has an area larger than the FPC flexible circuit layer; the FPC flexible circuit layer, which is attached to the cover plate (1), is laid flat on the base layer (21).