Diaphragm hanger structure

CN224732469UActive Publication Date: 2026-09-08GUANGDONG CHANGHONG ELECTRONICS
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Patent Information

Application Number
CN202521947461.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-10
Publication Date
2026-09-08
Estimated Expiration
2035-09-10

AI Technical Summary

Technical Problem

[0002]在显示模组背光领域,膜片的可靠固定与限位是保障光学性能的关键,现有技术中常采用外挂式挂耳结构实现此目的,例如中国专利文献申请号202022591250.0所公开的方案,该方案记载了通过独立的挂耳连接件将膜片悬挂于扩散板,再将扩散板固定连接于背板,进而将装配后的膜片和扩散板整体置于第一限位板与第二限位板之间,利用限位板对膜片和扩散板进行约束以实现限位;虽然该结构通过相对简单的部件组合实现了膜片的固定与限位功能,但其挂耳结构本身构型复杂,且安装过程涉及多个独立部件的分步组装与固定,整体工序繁琐、装配效率较低、部件管理成本增加

Benefits of technology

1、本实用新型设计了一种从背板中弯折所形成的挂耳,该挂耳具有弧形过渡区的片状主体,挂耳的特殊拱形造型在背板的纤薄设计下,其抗弯强度较直板结构更好,支撑稳定性显著增强且不易发生塑性变形。

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Abstract

The utility model provides a membrane ear structure relates to display module field, including backboard and the ear of folding from backboard, the ear is the sheet shape main body with arc transition area, the membrane is covered in the ear place. The utility model designs the ear of folding from backboard, the ear has the sheet shape main body with arc transition area, the special arch shape of ear modelling is under the slim design of backboard, and its bending strength is better than straight board structure, and the support stability is significantly enhanced and is not prone to plastic deformation.
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Description

Technical Field

[0001] This utility model relates to the field of display modules, and more particularly to a diaphragm hook structure. Background Technology

[0002] In the field of display module backlighting, reliable fixing and positioning of the diaphragm are crucial for ensuring optical performance. Existing technologies often employ external hanging ear structures to achieve this, such as the scheme disclosed in Chinese Patent Application No. 202022591250.0. This scheme describes suspending the diaphragm on a diffuser plate using independent hanging ear connectors, then fixing the diffuser plate to a backplate, and finally placing the assembled diaphragm and diffuser plate between a first and a second limiting plate, using the limiting plates to constrain and position them. While this structure achieves the fixing and positioning of the diaphragm through relatively simple component assembly, its hanging ear structure itself is complex, and the installation process involves the step-by-step assembly and fixing of multiple independent components, resulting in cumbersome procedures, low assembly efficiency, and increased component management costs. Based on this background, this paper proposes an integrated hanging ear structure folded directly from the backplate body material through innovative process design, simplifying components, optimizing the process, and improving overall assembly efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a diaphragm loop structure to solve the above-mentioned technical problems.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: The diaphragm hook structure includes a back plate and hooks that bend out from the back plate. The hooks are sheet-like bodies with arc-shaped transition areas, and the diaphragm is fitted onto the hooks.

[0005] Preferably, the loop has two side wing areas and a middle area located between the side wing areas, and the middle area and the two edge areas are arc-shaped transition areas.

[0006] Preferably, the middle area extends horizontally outward relative to the two side wing areas under the transition of the arc-shaped area.

[0007] Preferably, the middle area is the load-bearing support area.

[0008] Preferably, the two side wing areas are load-bearing support areas.

[0009] Preferably, the pre-drilled holes in the diaphragm are fitted onto the lugs.

[0010] Preferably, the hanging ears that bend out from the back panel form a 90° angle with the back panel.

[0011] Preferably, there is a pressure line at the included angle.

[0012] The beneficial effects of this utility model are: 1. This utility model designs a hanging ear formed by bending from the back plate. The hanging ear has a sheet-like main body with an arc-shaped transition area. The special arched shape of the hanging ear, under the thin design of the back plate, has better bending strength than the straight plate structure, significantly enhances support stability and is not prone to plastic deformation.

[0013] 2. The pressure line structure formed after the ear is bent can significantly improve the bending fatigue strength as a reinforcing rib. Attached Figure Description

[0014] Figure 1 This is an application diagram of the diaphragm hook shown in Example 1 on the display back panel; Figure 2 for Figure 1 An enlarged view of point A shown; Figure 3 This is a structural diagram of the ear loop structure; Figure 4 for Figure 3 The structure shown is a structural diagram from another perspective; Figure 5 This is an application diagram of the diaphragm hook in the display back panel as shown in Example 2; Figure 6 for Figure 5 An enlarged view of point B shown; Figure 7 This is a structural diagram of the ear loop structure; Figure 8 for Figure 7 The structure shown is a structural diagram from another perspective; Attached reference numerals: 1. Back panel; 2. Hanging lug; 201. Folding piece one; 202. Folding piece two; 203. Folding piece three. Detailed Implementation

[0015] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0017] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0018] Example 1 In this embodiment, a diaphragm hook structure is proposed; please refer to [link / reference]. Figures 1 to 4 The structure includes a back plate 1, the bottom of which is perforated to form a specific shaped through groove, and a sheet-like body integrally formed with the back plate 1 is retained within the through groove; the sheet-like body is formed by continuous stamping in a bending machine. Figures 2-4 The loop 2 has a specific geometric shape; the loop 2 is a sheet-like structure with a smooth, arc-shaped transition area, and the pre-drilled holes in the diaphragm fit over the loop 2. Specifically, please refer to... Figure 3 and Figure 4 The lug 2 includes two flaps 3 203 and a flap 1 201 located between the two flaps 3 203. The flap 1 201 and the flaps 3 203 on both sides are smoothly transitioned by flap 2 202. To further explain, flap 1 201 corresponds to the middle area, flap 3 203 corresponds to the side wing area, and flap 2 202 corresponds to the arc-shaped area. Under the transition support of the arc-shaped transition area, the middle area extends horizontally outward relative to the two side wing areas, forming a load-bearing support surface based on flap 2 202 as the support area. The key to this embodiment lies in the fact that the hanging ear 2, through the aforementioned special arched design, combined with the thinner design of the back plate 1, significantly optimizes the stress distribution. Compared to the traditional straight hanging ear structure, its bending strength and torsional stiffness are greatly improved, and the support stability is significantly enhanced, effectively suppressing the risk of plastic deformation under load. Furthermore, it should be noted that after the hanging ear 2 is bent, it forms a precise bending angle of 90°±2° with the back plate 1. Simultaneously, after the hanging ear 2 is bent, the connection root area between it and the back plate 1 forms a shape similar to... Figure 4 The continuous pressure line structure shown acts as a reinforcing rib, effectively concentrating material and increasing local stiffness, significantly enhancing the bending fatigue strength and service life of this critical connection area.

[0019] Example 2 In this embodiment, a diaphragm hook structure is proposed; please refer to [link / reference]. Figures 5 to 8 The structure includes a back plate 1, the bottom of which is perforated to form a specific shaped through groove, and a sheet-like body integrally formed with the back plate 1 is retained within the through groove; the sheet-like body is formed by continuous stamping in a bending machine. Figures 6-8 The loop 2 has a specific geometric shape; the loop 2 is a sheet-like structure with a smooth, arc-shaped transition area, and the pre-drilled holes in the diaphragm fit over the loop 2. Specifically, please refer to... Figure 7 and Figure 8The lug 2 includes two flaps 203 and a flap 201 located between the two flaps 203. The flap 201 and the flaps 203 on both sides are smoothly transitioned by flaps 202. Further explanation: flap 201 corresponds to the middle area, flap 203 corresponds to the side wing area, and flap 202 corresponds to the arc-shaped area. Under the transition support of the arc-shaped transition area, the middle area extends horizontally outward relative to the two side wing areas, forming a load-bearing support surface based on the two flaps 203 as the support area. Consistent with Embodiment 1, after the lug 2 is bent, it forms a precise bending angle of 90°±2° with the back plate 1. Simultaneously, after the lug 2 is bent, the connection root area between it and the back plate 1 forms a... Figure 8 The continuous pressure line structure shown acts as a reinforcing rib, effectively concentrating material and increasing local stiffness, significantly enhancing the bending fatigue strength and service life of this critical connection area.

[0020] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0021] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A diaphragm loop structure, characterized in that: It includes a back plate and a hanging ear that bends out from the back plate. The hanging ear is a sheet-like body with an arc-shaped transition area. The hanging ear has two side wing areas and a middle area located between the side wing areas. The middle area and the two edge areas are arc-shaped transition areas. The diaphragm is fitted onto the hanging ear.

2. The diaphragm loop structure according to claim 1, characterized in that: The central area extends horizontally outward from the two wing areas, transitioning from the arc-shaped area.

3. The diaphragm loop structure according to claim 2, characterized in that: The middle area is the load-bearing support area.

4. The diaphragm loop structure according to claim 2, characterized in that: The two side wing areas are load-bearing support areas.

5. The diaphragm loop structure according to claim 1, characterized in that: The lugs that bend out from the back panel form a 90° angle with the back panel.

6. The diaphragm loop structure according to claim 5, characterized in that: There is a crease at the corner.

7. The diaphragm loop structure according to claim 1, characterized in that: The pre-drilled holes in the diaphragm are fitted onto the lugs.

Citation Information

Patent Citations

  • Metal frameless membrane hanger structure

    CN213934478U