Foam assembly and soft screen

Abstract

The invention relates to the technical field of foam, in particular to a foam assembly and a soft screen. The foam assembly comprises a deformation part and retaining parts on the two sides of the deformation part; a reaction channel is formed in the deformation part; the A component capsules and the B component capsules are located in the reaction channel, the section of the reaction channel is circular, and the inner wall of the reaction channel abuts against the outer walls of the A component capsules and the B component capsules; when the deformation part is bent, the component A capsule, the component B capsule and the reaction channel abut against one another, and when the deformation part is bent to a preset angle, the pressure borne by the component A capsule and the component B capsule reaches a fracture threshold value; the compound in the component A capsule and the compound in the component B capsule are subjected to curing reaction after being mixed, so that the mixed liquid in the reaction channel is cured and forms a stable framework, the built-in stable framework can be formed after the deformation part is bent, the bent state of the deformation part is maintained, meanwhile, the flexibility of the bent outer side of the deformation part is not interfered, and the stability of the deformation part is improved. And assembly of electronic products is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of foams, specifically to a foam assembly and a flexible screen. Background Art

[0002] With the development of flexible screen technology, flexible screens are used in the digital display screens of many electronic products. Integrating flexible screens on the outer shells of electronic products, the adaptability of flexible screens enables electronic products to have more different appearance shapes, especially curved appearances.

[0003] However, in the prior art, especially in the field of electronic cigarettes, in order to better design the appearance, a flexible screen is used to achieve the digital display function, such as displaying the battery power and oil volume of the electronic cigarette. However, currently, plastic is used below the electronic cigarette display screen. The plastic is relatively hard, resulting in inflexible bending and poor bending plasticity. Therefore, we propose a foam assembly to replace the plastic part. Summary of the Invention

[0004] The present invention provides a foam assembly and a flexible screen, which can form an internal stable skeleton after the deformation part is bent to maintain the bent state of the deformation part, improve the support and filling ability, and at the same time do not interfere with the flexibility of the outer side of the bent deformation part, which is beneficial to the assembly of electronic products.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A foam assembly and a flexible screen, comprising:

[0007] A deformation part and holding parts on both sides thereof; a reaction channel is opened inside the deformation part; a plurality of A-component capsules and B-component capsules are located inside the reaction channel. The cross-section of the reaction channel is circular, and the inner wall of the reaction channel abuts against the outer walls of the A-component capsules and B-component capsules. When the deformation part is bent, the A-component capsules, B-component capsules and the reaction channel abut against each other. When the deformation part is bent to a preset angle, the pressure borne by the A-component capsules and B-component capsules reaches the rupture threshold; the compounds in the A-component capsules and B-component capsules are mixed and undergo a curing reaction, so that the mixed liquid inside the reaction channel is cured and forms a stable skeleton.

[0008] Optionally, a plurality of deformation assisting strips are embedded and installed inside the deformation part. The deformation assisting strips include a safety metal sheet and a pressure flat plate. The pressure flat plate is in a U-shaped structure, and its flat surface abuts against the outer wall of the reaction channel. When its own temperature reaches the preset temperature, it will deform into a pressure arrow. The pressure arrow has a sharp part for pressing against the reaction channel. The safety metal sheet is used to maintain the skeleton of the pressure flat plate, and the heat of the pressure flat plate does not interfere with the safety metal sheet.

[0009] Optionally, a plurality of anchoring bars are fixedly installed on the outer wall of the inner side of the bent portion of the deformation portion. The plurality of anchoring bars are distributed in an array. A liquid leakage hole is formed in the outer wall of the deformation portion between two adjacent anchoring bars. The liquid leakage hole is communicated with the reaction channel, and the diameter of the liquid leakage hole is smaller than that of the reaction channel. When the deformation portion is bent, the adjacent anchoring bars will contact each other.

[0010] Optionally, the reaction channel includes a plurality of intersecting weft channels and warp channels. A network structure is formed between the plurality of weft channels and warp channels, and the A-component capsules and the B-component capsules are alternately distributed in the network structure.

[0011] Optionally, the anchoring bar is in an isosceles trapezoid structure. After the deformation portion is bent, the waists of two adjacent anchoring bars will contact and fit with each other.

[0012] Optionally, the double sides of the holding portion are both pasted with a pasting portion. The finished surface of the pasting portion is lower than the top waist surface of the anchoring bar and higher than the surface of the deformation portion.

[0013] Optionally, the A-component capsule is filled with epoxy resin, the wall material of the A-component capsule is polyurethane, the B-component capsule is filled with a curing agent, and the wall material is gum arabic.

[0014] A flexible screen includes a flexible circuit board and a flexible panel. The flexible circuit board can be laid on the curved surface of an electronic product. The deformation portion is attached to the outer side of the bent flexible circuit board and is in contact therewith. The flexible panel is sleeved outside the deformation portion.

[0015] The present invention provides a foam assembly and a flexible screen. Compared with the prior art, the following beneficial effects are achieved:

[0016] First, during the bending process of the deformation portion, it is the part where the bending stress is concentrated. When bending, the A-component capsules and the B-component capsules on the inner side of the bent deformation portion are compressed and broken to release the internal compounds. After the two are mixed, a chemical reaction will occur. The mixture in the reaction channel gradually undergoes a curing reaction to form a skeleton, which is used to maintain the bent state of the deformation portion, and at the same time enables the entire deformation portion to have the filling rigidity or supporting ability required by the electronic product. At the same time, the foam outside the deformation portion is flexible, facilitating the extrusion deformation ability required for installation.

[0017] Second, by designing the deformation assisting strip, during the formation process of the stable skeleton inside the deformation portion, an external device can be used to radiatively heat the safety metal sheet, so that the temperature of the safety metal sheet itself reaches a preset temperature, thereby causing the pressure plate to deform and form a pressure arrow. During the deformation process, the pressure plate will transform from a flat portion to a sharp portion, thereby completing the pressure application to the reaction channel, and then completing the assistance to assist the rupture of the A-component capsules and the B-component capsules.

[0018] III. Through the cooperation of the anchoring strips and the liquid leakage holes, during the formation of the stable framework, the mixture will flow through the liquid leakage holes to the inner curved surface of the deformation part, so that the mixture is transferred between the two anchoring strips. Due to the bending of the deformation part, the anchoring strips will fit together, thus cooperating with the outflowing mixture for fixation. The anchoring strips are made of rubber material. At this time, the anchoring strips can be used as anchor points to further stabilize the bending of the deformation part. Secondly, the multiple anchoring strips are continuously anchored, and the anchoring strips form "hinge-type" nodes, which can not only enhance the bending stability of the deformation part, but also do not affect the softness of the outer side of the deformation part, improving the assembly adaptability of small electronic products such as electronic cigarettes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the deformation part and the holding part in the present invention;

[0020] Figure 2 is a three-dimensional structural diagram of the deformation part and the anchoring strips in the present invention;

[0021] Figure 3 is the present invention Figure 2 right view structural diagram;

[0022] Figure 4 is the present invention Figure 2 front view structural diagram;

[0023] Figure 5 is the present invention along Figure 3 sectional view structural diagram taken along A-A in;

[0024] Figure 6 is the assembly hierarchy diagram of the flexible screen and the foam component in the present invention;

[0025] Figure 7 is the state change schematic diagram of the deformation assisting strip in the present invention;

[0026] Figure 8 is the reaction channel schematic diagram of the network structure in the present invention.

[0027] In the figure: 1. Holding part; 2. Deformation part; 3. Anchoring strip; 4. Liquid leakage hole; 5. A-component capsule; 6. B-component capsule; 7. Latitude channel; 8. Longitude channel; 9. Flexible circuit board; 11. Adhesive part; 12. Flexible panel; 13. Safety metal sheet; 14. Pressure plate; 15. Pressure arrow. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figures 1 to 8 , the present invention provides a technical solution: The foam assembly includes:

[0030] A deformation part 2 and the holding parts 1 on both sides thereof; a reaction channel is provided inside the deformation part 2; a plurality of A-component capsules 5 and B-component capsules 6 located inside the reaction channel, the cross-section of the reaction channel is circular, and the inner wall of the reaction channel abuts against the outer walls of the A-component capsules 5 and B-component capsules 6; when the deformation part 2 is bent, the A-component capsules 5, B-component capsules 6 and the reaction channel abut against each other, and when the deformation part 2 is bent to a preset angle, the pressure borne by the A-component capsules 5 and B-component capsules 6 reaches the rupture threshold; the compounds in the A-component capsules 5 and B-component capsules 6 are mixed and then undergo a curing reaction, so that the mixture inside the reaction channel is cured and a stable skeleton is formed.

[0031] In the prior art, the plastic material is not conducive to adapting to different bending environments. After using foam, the foam has a flexible characteristic, and at the same time, the height of the foam is beneficial to adapting to the height of the LED. In the present invention, a trigger-type stable skeleton is also built into the foam. After the deformation part 2 is bent, the skeleton is placed inside the deformation part 2, which can maintain the bent state of the foam assembly. The deformation part 2 located outside the skeleton also has a flexible ability and does not interfere with the normal function of the deformation part 2. The deformation part 2 is in a stable bent state, which is beneficial to the assembly and debugging of the deformation part 2, improves the support and filling ability. Specifically, for the steps of forming the skeleton, first, the foam is manufactured by the foaming process, and the foam is pre-grooved to form a reaction channel. The A-component capsules 5 and B-component capsules 6 are coated and distributed in the reaction channel. At the same time, the foam with the A-component capsules 5 and B-component capsules 6 and the pure foam are laminated and compounded by the lamination process. Finally, die cutting is performed to obtain the foam assembly. During use, the deformation part 2 is bent. During the bending process of the deformation part 2, it is the part where the bending stress is concentrated. At this time, the A-component capsules 5 and B-component capsules 6 on the inner side of the bent deformation part 2 are pressed and broken to release the internal compounds. After the two are mixed, a chemical reaction will occur, such as a cross-linking reaction. At this time, the mixture in the reaction channel gradually undergoes a curing reaction to form a skeleton, which is used to maintain the bent state of the deformation part 2, and at the same time enables the entire deformation part 2 to have the filling rigidity or support ability required for electronic products. At the same time, the foam outside the deformation part 2 shows flexibility, which is convenient for the extrusion deformation ability required for installation.

[0032] The A component capsule 5 and the B component capsule 6 constitute a two-component capsule.

[0033] In a more preferred embodiment, a plurality of deformation assisting strips are embedded and installed inside the deformation part 2, and the deformation assisting strips include a safety metal sheet 13 and a pressure plate 14. The pressure plate 14 is a 匚-shaped structure, and its flat surface contacts the outer wall of the reaction channel. When its own temperature reaches a preset temperature, it will deform into a pressure arrow 15. The pressure arrow 15 has a sharp portion that applies pressure to the reaction channel. The safety metal sheet 13 is a skeleton for maintaining the pressure plate 14. The pressure plate 14 does not interfere with the safety metal sheet 13 when heated. Please refer to Figure 7 A deformation assisting strip is built into the deformation part 2. The safety metal sheet 13 is made of memory metal and can be bent or adjusted arbitrarily in a cooling state, so it can bend or bend along with the deformation part 2. When the stable skeleton inside the deformation part 2 is formed, the safety metal sheet 13 can be radiantly heated by an external device, so that the temperature of the safety metal sheet 13 reaches a preset temperature, thereby deforming the pressure plate 14 and forming a pressure arrow 15. The pressure plate 14 will transform from a flat part to a sharp part during the deformation process, thereby completing the pressure on the reaction channel, and then completing the assist, and assisting the rupture of the A component capsule 5 and the B component capsule 6.

[0034] Based on the embodiment of the deformation assisting strip, a plurality of anchoring strips 3 are fixedly installed on the outer wall of the inner side of the deformation part 2, and the plurality of anchoring strips 3 are arranged in an array. A leakage hole 4 is provided on the outer wall of the deformation part 2 between two adjacent anchoring strips 3. The leakage hole 4 is connected to the reaction channel, and the diameter of the leakage hole 4 is smaller than the diameter of the reaction channel. When the deformation part 2 is bent, the adjacent anchoring strips 3 will contact each other. Please refer to Figure 2 , Figure 4 and Figure 5 In the present embodiment, during the formation of a stable skeleton, the mixture will flow through the leakage hole 4 to the curved inner surface of the deformation part 2, thereby transferring the mixture to between the two anchoring strips 3. Due to the bending of the deformation part 2, the anchoring strips 3 will fit together, thereby fixing the outflowing mixture. The anchoring strips 3 are made of rubber material. At this time, the anchoring strips 3 can be used as anchor points to further stabilize the bending of the deformation part 2. Secondly, after bending, multiple anchoring strips 3 are continuously anchored, and the anchoring strips 3 form "hinge-type" nodes. Under the macroscopic state, the bending stability of the deformation part 2 is enhanced without affecting the softness of the outer side of the deformation part 2. Under the microscopic perspective, the "hinge-type" anchoring strips 3 can still be slightly deformed. In electronic products, especially the assembly adaptability of small electronic products such as electronic cigarettes is improved.

[0035] Based on the embodiment of the deformation assisting strip, the reaction channels include a plurality of mutually intersecting weft channels 7 and warp channels 8. A reticular structure is formed between the plurality of weft channels 7 and warp channels 8, and the A-component capsules 5 and B-component capsules 6 are alternately distributed in the reticular structure. Please refer to Figure 8 , in this embodiment, during the process of the reticular structure following the bending of the deformation part 2, it will not overly affect the integrity of the reaction channels. At the same time, the reticular structure endows the deformation part 2 with a more uniform distribution space, facilitating the coating work of the microcapsules.

[0036] Based on the embodiment of the "hinge-type" node, the anchoring strip 3 has an isosceles trapezoid structure. After the deformation part 2 is bent, the waists of two adjacent anchoring strips 3 will contact and fit with each other. Please refer to Figure 2 and Figure 3 . By adopting the isosceles trapezoid structure, a larger range of bendable angles can be adapted. After the deformation part 2 is bent, the pasting and locking between the waists of the anchoring strips 3 can improve the stability of the inner surface of the bent deformation part 2.

[0037] Furthermore, both sides of the holding part 1 are covered with the pasting part 11. The finished surface of the pasting part 11 is lower than the top waist surface of the anchoring strip 3 and higher than the surface of the deformation part 2.

[0038] Even further, the A-component capsules 5 are filled with epoxy resin, and the wall material of the A-component capsules 5 is polyurethane. The B-component capsules 6 are filled with curing agent, and the wall material is gum arabic.

[0039] The flexible screen includes: a foam component, a flexible circuit board 9, and a flexible panel 12. The flexible circuit board 9 can be laid on the curved surface of the electronic product. The deformation part 2 is attached to the outer side of the bend of the flexible circuit board 9 and fits together. The flexible panel 12 is sleeved on the outside of the deformation part 2. During the installation process, the bend angle of the deformation part 2 can be preset first, so that the bend angle of the deformation part 2 can better fit or disengage from the curved surface of the flexible circuit board 9. Then, the pasting between the two can be completed by using the pasting part 11. Before or after that, the flexible panel 12 can be sleeved on the outer side of the bend of the foam component, and the outside of the deformation part 2 has flexibility, so that the installation adjustability of the flexible panel 12 is greater, and thus the light emitted by the flexible circuit board 9 can pass through the flexible panel 12 more accurately to complete the digital display operation.

[0040] By using the cooperation of the above structures, a built-in stable skeleton can be formed after the deformation part 2 is bent to maintain the bent state of the deformation part 2, improve the support and filling capabilities, and at the same time do not interfere with the flexibility of the outer side of the deformation part 2, which is beneficial to the assembly of electronic products.

[0041] The standard parts used in this embodiment can be directly purchased from the market. For the non-standard structural components described in the specification and drawings, they can also be directly processed without doubt according to the existing common technical knowledge. At the same time, the connection methods of each component adopt the mature conventional means in the existing technology, and the machinery, parts and equipment all adopt the conventional models in the existing technology. Therefore, no specific description will be made here.

[0042] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Foam assembly, characterized in that: Comprising: A deformation part (2) and holding parts (1) on both sides thereof; A reaction channel is provided inside the deformation part (2); A plurality of A-component capsules (5) and B-component capsules (6) located inside the reaction channel, the cross-section of the reaction channel is circular, and the inner wall of the reaction channel abuts against the outer walls of the A-component capsules (5) and B-component capsules (6); When the deformation part (2) is bent, the A-component capsules (5), B-component capsules (6) and the reaction channel abut against each other. When the deformation part (2) is bent to a preset angle, the pressure borne by the A-component capsules (5) and B-component capsules (6) reaches the rupture threshold; The compounds in the A-component capsules (5) and B-component capsules (6) are mixed and undergo a curing reaction, so that the mixture inside the reaction channel is cured and a stable framework is formed.

2. The foam assembly according to claim 1, wherein: A plurality of deformation assisting strips are also embedded and installed inside the deformation part (2). The deformation assisting strips include a safety metal sheet (13) and a pressure flat plate (14). The pressure flat plate (14) has a U-shaped structure, and its flat surface abuts against the outer wall of the reaction channel. When its own temperature reaches the preset temperature, it will deform into a pressure arrow (15). The pressure arrow (15) has a sharp part for pressing against the reaction channel. The safety metal sheet (13) is a framework for maintaining the pressure flat plate (14), and the pressure flat plate (14) is not interfered with by the safety metal sheet (13) when heated.

3. The foam component according to claim 2, wherein: A plurality of anchoring strips (3) are fixedly installed on the outer wall of the inner side of the bent deformation part (2). The plurality of anchoring strips (3) are distributed in an array. A liquid leakage hole (4) is provided in the outer wall of the deformation part (2) between two adjacent anchoring strips (3). The liquid leakage hole (4) is communicated with the reaction channel, and the diameter of the liquid leakage hole (4) is smaller than the diameter of the reaction channel. When the deformation part (2) is bent, the adjacent anchoring strips (3) will contact each other.

4. The foam assembly according to claim 2, wherein: The reaction channel includes a plurality of mutually intersecting weft channels (7) and warp channels (8). A network structure is formed between the plurality of weft channels (7) and warp channels (8), and the A-component capsules (5) and B-component capsules (6) are alternately distributed in the network structure.

5. The foam assembly according to claim 3, wherein: The anchoring strip (3) has an isosceles trapezoidal structure. After the deformation part (2) is bent, the waists of two adjacent anchoring strips (3) will contact and fit with each other.

6. The foam component according to claim 5, wherein: Both sides of the holding part (1) are pasted with a pasting part (11). The finished surface of the pasting part (11) is lower than the top waist surface of the anchoring strip (3) and higher than the surface of the deformation part (2).

7. The foam assembly according to any one of claims 1-6, characterized in that: The A-component capsule (5) is filled with epoxy resin inside, the wall material of the A-component capsule (5) is polyurethane, the B-component capsule (6) is filled with a curing agent inside, and the wall material is gum arabic.

8. Soft screen, comprising the foam component described in claim 7, characterized in that: Comprising: A flexible circuit board (9) and a flexible panel (12). The flexible circuit board (9) can be laid on the curved surface of an electronic product. The deformation part (2) is attached to the outer side of the bend of the flexible circuit board (9) and is attached thereto. The flexible panel (12) is sleeved outside the deformation part (2).

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