Foldable paper holder in a mobile phone packaging box
By designing a foldable paper tray structure and adopting a multi-layer support design with a hollow bottom tray and sloping accessory cavity outline, the problem of insufficient strength of the paper tray structure is solved, achieving a low-material and environmentally friendly mobile phone packaging box design.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ADIFOBE (WUXI) TECH CO LTD
- Filing Date
- 2024-03-27
- Publication Date
- 2026-05-26
AI Technical Summary
While pursuing environmentally friendly materials, the paper trays inside existing mobile phone packaging boxes lack structural strength and load-bearing capacity, resulting in high material consumption and difficulty in maintaining sufficient structural support while reducing material usage.
Design a foldable paper tray structure, including an integrally molded middle plate and side plates, a hollow bottom tray, a beveled outer contour of the accessory cavity, and a boss inside the middle plate. By folding, a multi-layer structure is formed to support the receiving cavity and accessory cavity, thereby achieving structural strength and load-bearing capacity and reducing the material consumption of solid parts.
Without sacrificing structural strength, it significantly reduces the consumption of paper trays, lowers production costs, and provides sufficient protection.
Smart Images

Figure CN118529349B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of mobile phone packaging technology, and in particular to a foldable paper tray for a mobile phone packaging box. Background Technology
[0002] New mobile phones are often sold with a packaging box to hold and protect the phone and related accessories. The packaging box mainly consists of an outer sleeve and an inner paper tray inside the sleeve. When the phone leaves the factory, the manufacturer places the phone and accessories such as the instruction manual inside the paper tray and then seals it with plastic on the outside of the sleeve.
[0003] The existing drawbacks are as follows: With the increasing emphasis on plastic restrictions and environmental protection, the paper tray material inside mobile phone packaging boxes has evolved from early plastic linings to EVA foam linings, and now to wet-pressed paper trays. While this represents an environmentally friendly upgrade in materials, the paper tray's structure, requiring a certain load-bearing capacity and strength, necessitates a multi-layered structure, resulting in higher material consumption during production. Conversely, reducing material consumption requires a hollow bottom design in addition to the necessary cavity for the phone itself, which compromises the paper tray's load-bearing capacity and strength. Therefore, developing a low-material-consumption paper tray structure without sacrificing structural strength has become a critical challenge in the mobile phone packaging box industry. Summary of the Invention
[0004] This application addresses the shortcomings of the prior art by providing a foldable paper tray for mobile phone packaging boxes, offering a low-material-consumption structural design without sacrificing structural strength.
[0005] The technical solution adopted in this invention is as follows:
[0006] A foldable paper tray for a mobile phone packaging box, the paper tray body includes an integrally formed middle plate and side plates located on both sides of the middle plate. The middle plate has a cavity for holding the mobile phone, and an accessory cavity for holding accessories is formed through the bottom surface of the cavity. The lower surface of each side plate has a base. After the two sets of side plates are folded in the center, the outer contour of the accessory cavity is surrounded between the two sets of bases.
[0007] Furthermore, the base plate has a hollow design extending inward from the upper surface of the side plate.
[0008] Furthermore, the outer contour of the accessory cavity is four inclined surfaces, and the inner wall surface of the base is an inclined surface that matches the outer contour of the accessory cavity.
[0009] Furthermore, a boss is formed on the bottom surface of the receiving cavity relative to the waist position.
[0010] The beneficial effects of this invention are as follows:
[0011] Compared to existing technologies, the paper tray structure provided by this invention is integrally formed using a single mold, comprising two side plates and a middle plate. In use, the folded height of the product is determined by the bending plate between the side plates and the middle plate. The base supports on both sides along the height direction simultaneously support the internal cavities and accessory cavities of the middle plate, thus forming a multi-layered structure that achieves the required structural strength and load-bearing capacity. Simultaneously, the hollow design of the base and the hollow design within the middle plate greatly simplifies the solid parts of the paper tray product, significantly reducing material consumption. Attached Figure Description
[0012] Figure 1 This is a first three-dimensional schematic diagram of the present invention in its flat state;
[0013] Figure 2 This is a second three-dimensional schematic diagram of the invention in its flat state;
[0014] Figure 3 This is a three-dimensional schematic diagram of the bending process of the present invention;
[0015] Figure 4 This is a three-dimensional schematic diagram of the folded version of the present invention;
[0016] Figure 5 This is a front view of the folded version of the present invention.
[0017] The components are: 1. middle plate; 2. side plate; 3. receiving cavity; 4. accessory cavity; 5. bottom support; 6. inclined surface; 7. boss; 8. shoulder; 9. bending plate. Detailed Implementation
[0018] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.
[0019] This invention provides a foldable paper tray for mobile phone packaging boxes, aiming to provide a low-material-consumption structural solution for mobile phone packaging boxes without sacrificing structural strength.
[0020] Specifically, such as Figures 1 to 5 As shown, the paper tray body of the present invention includes an integrally formed middle plate 1 and side plates 2 located on both sides of the middle plate 1. A receiving cavity 3 for placing a mobile phone is formed in the middle plate 1. An accessory cavity 4 for placing accessories is formed through the bottom surface of the receiving cavity 3. A base 5 is formed on the lower surface of each side plate 2. After the two sets of side plates 2 are folded in the center, the outer contour of the accessory cavity 4 is surrounded between the two sets of base 5.
[0021] In some embodiments, the base 5 is hollow from the upper surface of the side panel 2 inward; through this technical solution, the side panel 2 is folded to serve as the lower structure, and the hollow design can significantly reduce the amount of material consumed in the lower structure, thereby achieving the purpose of reducing costs and being environmentally friendly.
[0022] In some embodiments, the outer contour of the fitting cavity 4 is four inclined surfaces 6, and the inner wall surface of the base 5 is an inclined surface 6 that matches the outer contour of the fitting cavity 4. Through the above technical solution, since the multi-layer structure of the present invention is based on the stacked fit of the side plate 2 and the middle plate 1 after folding, after folding, as... Figure 4 and Figure 5 As shown, the outer contour of the base 5 abuts against the bottom surface of the receiving cavity 3, and the skirt of the base 5 body relies on the shoulder 8, thereby abutting against the bottom surface of the accessory cavity 4 to bear the force from above. At the same time, the contact surfaces of both are designed with inclined surfaces 6, abutting against each other, so that higher stability and strength can be obtained when the structure is under stress.
[0023] In some embodiments, a protrusion 7 is formed on the bottom surface of the receiving cavity 3 relative to the waist position. Through the above technical solution, since the function of the paper tray is to hold the mobile phone body and to prevent static electricity and vibration and impact during transportation, the mobile phone body needs to be protected. The present invention designs a protrusion 7 in the receiving cavity 3. When the mobile phone is held, the bottom surface of the body contacts the bottom surface of the receiving cavity 3. Due to the isolation of the protrusion 7 around the body, it is both confined to the inside of the receiving cavity 3 and has a certain gap around the perimeter, thereby isolating the risk of impact and static electricity, and the gap is convenient for consumers to take out the new mobile phone.
[0024] Working principle: Compared with the existing technology, the paper tray inside the mobile phone packaging box provided by this invention can provide a low-consumption solution for mobile phone packaging boxes without sacrificing structural strength.
[0025] In use, the product height after folding is determined by the bending plate 9 between the side plate 2 and the middle plate 1. The base supports 5 on both sides along the height direction simultaneously support the receiving cavity 3 and the accessory cavity 4 inside the middle plate 1, thus forming a multi-layer structure to achieve the required structural strength and load-bearing capacity of the product. At the same time, the hollow design of the base support 5 and the hollow design inside the middle plate 1 greatly simplifies the solid parts of the paper tray product, resulting in a significant reduction in product material consumption.
[0026] The above description is an explanation of the present invention and not a limitation thereof. The scope of the present invention is defined by the claims. Within the scope of protection of the present invention, any form of modification may be made.
Claims
1. A foldable paper tray for a mobile phone packaging box, characterized in that: The paper tray body includes an integrally formed middle plate (1) and side plates (2) located on both sides of the middle plate (1). The middle plate (1) has a cavity (3) for placing a mobile phone. A component cavity (4) for placing accessories is formed through the bottom surface of the cavity (3). A base support (5) is formed on the lower surface of each side plate (2). After the two sets of side plates (2) are folded in the center, the outer contour of the component cavity (4) is surrounded between the two sets of base supports (5). When the foldable paper tray is in the folded state, the outer contour of its base (5) abuts against the bottom surface of the receiving cavity (3), and the skirt of the base (5) body relies on the shoulder (8) of the accessory cavity (4). At the same time, the contact surfaces of both are designed with inclined surfaces (6) to abut against each other.
2. The foldable paper tray inside a mobile phone packaging box as described in claim 1, characterized in that: The base (5) is hollow from the upper surface of the side plate (2) inward.
3. The foldable paper tray inside a mobile phone packaging box as described in claim 1, characterized in that: The outer contour of the accessory cavity (4) is four inclined surfaces (6), and the inner wall of the base (5) is an inclined surface (6) that matches the outer contour of the accessory cavity (4).
4. The foldable paper tray inside a mobile phone packaging box as described in claim 1, characterized in that: The bottom surface of the receiving cavity (3) is also formed with a boss (7) at the waist position.