Composite plastic protective film

Abstract

The utility model belongs to the technical field of protective films, and discloses a composite plastic protective film which comprises a film body and a heat conduction belt, the film body is of a multi-layer structure and is divided into a first plastic layer, a reinforced layer, a heat conduction layer and a second plastic layer, the reinforced layer is arranged above the first plastic layer, the heat conduction layer is arranged above the reinforced layer, and the heat conduction belt is arranged above the heat conduction layer. A first plastic layer is arranged above the film body, a second plastic layer is arranged above the heat conduction layer, the first plastic layer, the reinforced layer, the heat conduction layer and the second plastic layer are tightly connected, a heat conduction belt is arranged on one side of the film body, the film body is inserted into the heat conduction belt, the reinforced layer is formed by connecting reinforced belts which are crossed transversely and vertically, and the heat conduction layer is made of metal fibers with good heat conduction performance. According to the utility model, the structural design is compact and reasonable, the heat dissipation capability can be improved, the heat accumulation can be prevented, the tensile strength, bursting strength and tearing strength can be greatly improved, the mechanical property is good, the firmness and durability are realized, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of protective films, in particular to a composite plastic protective film. Background Art

[0002] Plastic protective films are a kind of film materials, usually made of plastics such as polyethylene (PE), polypropylene (PP) or polyester (PET). They are widely used to protect surfaces from scratches, dust, dirt and other external factors. Common uses include using them on the packaging of electronic products such as mobile phones and computer screens to avoid scratching during transportation and storage, during construction and decoration to protect floors, walls and furniture from damage, for the protective film on the surface of cars to prevent scratches caused by small stones, branches and other objects, during the transportation of kitchen appliances and household appliances to prevent scratching and collision, and during the circulation of items to provide additional protection to ensure integrity. According to different requirements, plastic protective films can have different thicknesses, adhesiveness and transparencies, and can even block ultraviolet rays to adapt to various environments.

[0003] Since plastic protective films are made of plastics such as polyethylene, polypropylene or polyester, such plastic protective films will inherit the advantages and disadvantages of plastics. When used in some applications in combination with electronic products, plastic protective films are used to prevent scratches and damage to electronic products. However, the internal heat of electronic products is generated, and the plastic protective films have poor heat dissipation ability, which will lead to the accumulation of internal heat and affect the use of electronic products. And most plastic protective films are relatively thin after processing and forming, with poor mechanical properties, and may be torn and damaged during use. Especially when using plastic protective films to wrap some relatively heavy tools, the protective films are often damaged. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a composite plastic protective film to solve the problems of poor heat dissipation performance and poor mechanical properties of plastic protective films as mentioned in the above background art.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solution: A composite plastic protective film, including a film body and a heat conduction belt. The film body is a multi-layer structure, and the film body is divided into a first plastic layer, a reinforcing layer, a heat conduction layer and a second plastic layer. The reinforcing layer is arranged above the first plastic layer, the heat conduction layer is arranged above the reinforcing layer, and the second plastic layer is arranged above the heat conduction layer. The first plastic layer, the reinforcing layer, the heat conduction layer and the second plastic layer are closely connected. One side of the film body is provided with a heat conduction belt, and the film body is inserted into the heat conduction belt.

[0008] Preferably, the reinforcement layer comprises a plurality of groups of reinforcement strips intersecting horizontally and vertically, the plurality of groups of reinforcement strips are welded together, and the plurality of groups of reinforcement strips are separated into a plurality of groups of cross grids.

[0009] Preferably, the heat-conducting layer comprises a metal fiber layer and multiple groups of heat-conducting cylinders, each of which is provided with annular grooves, the metal fiber layer is sleeved on the multiple groups of heat-conducting cylinders at corresponding annular grooves, and one end of the multiple groups of heat-conducting cylinders passes through multiple groups of cross grids.

[0010] Preferably, the second plastic layer is provided with a plurality of cylindrical recessed holes corresponding to the plurality of heat-conducting cylinders, the plurality of heat-conducting cylinders are plugged into the plurality of cylindrical recessed holes, and the second plastic layer is connected to the heat-conducting layer by plugging the plurality of heat-conducting cylinders.

[0011] Preferably, the first plastic layer is provided with a plurality of groups of cylindrical recessed holes corresponding to the plurality of groups of heat-conducting cylinders, and the first plastic layer is provided with a cross groove corresponding to the reinforcement layer, the reinforcement layer is snapped into the cross groove, the plurality of groups of heat-conducting cylinders pass through the plurality of groups of cross grids at one end and are plug-connected with the plurality of groups of cylindrical recessed holes on the first plastic layer, and the first plastic layer and the heat-conducting layer are plug-connected via the plurality of groups of heat-conducting cylinders.

[0012] Preferably, the thermal conductive belt is provided with a connecting device on one side of the membrane body, a heat dissipation surface is welded on the side of the connecting device facing away from the membrane body, a plug-in slot corresponding to the membrane body is opened on the connecting device, the membrane body is connected to the plug-in slot by plugging, and a plurality of fixing holes are opened on one side of the connecting device, and a plurality of fixing nails are inserted in the fixing holes.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a composite plastic protective film, which has the following beneficial effects:

[0015] 1. The composite plastic protective film is provided with a heat-conducting layer and a reinforcing layer, which can improve the heat dissipation capacity, prevent heat accumulation, and greatly improve the tensile strength, bursting strength and tear strength performance. It has good mechanical properties, is strong and durable, and has a wide range of applications.

[0016] 2. A heat-conducting layer and a heat-conducting belt are provided to conduct heat to the heat-conducting belt for heat dissipation and cooling, which can improve the heat dissipation capacity and prevent heat accumulation.

[0017] 3. A reinforcement layer is provided, and the horizontally and vertically intersecting reinforcement strips can play the role of reinforcement and strengthening, which can greatly improve the tensile strength, bursting strength and tear strength performance. It has good mechanical properties, is strong and durable, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 Schematic diagram of the film body of the present utility model;

[0020] Figure 3 Schematic diagram of the reinforcing layer of the present utility model;

[0021] Figure 4 Schematic diagram of the heat-conducting layer of the present utility model;

[0022] Figure 5 Schematic diagram of the second plastic layer of the present utility model;

[0023] Figure 6 Schematic diagram of the first plastic layer of the present utility model;

[0024] Figure 7 Schematic diagram of the heat-conducting belt of the present utility model.

[0025] In the figure: 1. First plastic layer; 2. Reinforcing layer; 3. Heat-conducting layer; 4. Second plastic layer; 5. Heat-conducting belt; 6. Reinforcing strip; 7. Cross grid; 8. Metal fiber layer; 9. Heat-conducting cylinder; 10. Annular groove; 11. Cylindrical concave hole; 12. Cross groove; 13. Insertion groove; 14. Fixing hole; 15. Fixing nail; 16. Heat dissipation surface. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Please refer to Figure 1-7 , the present utility model provides a technical solution:

[0028] A composite plastic protective film includes a film body and a heat-conducting belt 5. The film body is a multi-layer structure and is divided into a first plastic layer 1, a reinforcing layer 2, a heat-conducting layer 3, and a second plastic layer 4. A reinforcing layer 2 is provided above the first plastic layer 1, a heat-conducting layer 3 is provided above the reinforcing layer 2, and a second plastic layer 4 is provided above the heat-conducting layer 3. The first plastic layer 1, the reinforcing layer 2, the heat-conducting layer 3, and the second plastic layer 4 are tightly connected. A heat-conducting belt 5 is provided on one side of the film body, and the film body is inserted into the heat-conducting belt 5. There is almost no gap between the first plastic layer 1, the reinforcing layer 2, the heat-conducting layer 3, and the second plastic layer 4. The heat-conducting layer 3 can conduct heat to the heat-conducting belt 5, and the heat-conducting belt 5 contacts the air or a heat dissipation device for heat dissipation.

[0029] Furthermore, the reinforcing layer 2 includes multiple groups of reinforcing strips 6 intersecting horizontally and vertically. The multiple groups of reinforcing strips 6 are connected by welding, and multiple groups of cross-shaped meshes 7 are separated between the multiple groups of reinforcing strips 6. The reinforcing strips 6 should be made of materials with better mechanical properties. The reinforcing layer 2 can also adopt an integrally formed mesh plate intersecting horizontally and vertically.

[0030] Furthermore, the heat-conducting layer 3 includes a metal fiber layer 8 and multiple groups of heat-conducting cylinders 9. Multiple annular grooves 10 are provided on the multiple groups of heat-conducting cylinders 9. The metal fiber layer 8 is sleeved on the multiple groups of heat-conducting cylinders 9 corresponding to the annular grooves 10. One end of the multiple groups of heat-conducting cylinders 9 passes through the multiple groups of cross-shaped meshes 7. Metal fibers have good heat conductivity and can transfer heat quickly.

[0031] Furthermore, multiple groups of cylindrical concave holes 11 corresponding to the multiple groups of heat-conducting cylinders 9 are provided on the second plastic layer 4. The multiple groups of heat-conducting cylinders 9 are inserted into the multiple groups of cylindrical concave holes 11. The second plastic layer 4 and the heat-conducting layer 3 are connected by inserting the multiple groups of heat-conducting cylinders 9. The first plastic layer 1 and the second plastic layer 4 are thinner at the cylindrical concave holes 11, which can facilitate the conduction of heat to the heat-conducting cylinders 9, and then the heat is conducted to the metal fiber layer 8.

[0032] Furthermore, multiple groups of cylindrical concave holes 11 corresponding to the multiple groups of heat-conducting cylinders 9 are provided on the first plastic layer 1, and cross-shaped grooves 12 corresponding to the reinforcing layer 2 are provided on the first plastic layer 1. The reinforcing layer 2 is clamped in the cross-shaped grooves 12. One end of the multiple groups of heat-conducting cylinders 9 passes through the multiple groups of cross-shaped meshes 7 and is inserted and connected to the multiple groups of cylindrical concave holes 11 on the first plastic layer 1. The first plastic layer 1 and the heat-conducting layer 3 are connected by inserting the multiple groups of heat-conducting cylinders 9. After combining the reinforcing layer 2 and the heat-conducting layer 3, the first plastic layer 1 and the second plastic layer 4 can be roll-pressed and thermoformed on both sides.

[0033] Furthermore, a connecting device is provided on one side of the heat-conducting belt 5 corresponding to the film body. A heat-dissipating surface 16 is welded on the side of the connecting device facing away from the film body. A plug-in groove 13 corresponding to the film body is provided on the connecting device. The film body is inserted and connected to the plug-in groove 13. Multiple fixing holes 14 are provided on one side of the connecting device, and multiple fixing nails 15 are inserted into the fixing holes 14. When connecting the film body and the heat-conducting belt 5, it is recommended to strip off an appropriate amount of the plastic skins of the first plastic layer 1 and the second plastic layer 4, insert the heat-conducting layer 3 into the plug-in groove 13 and fix it with the fixing nails 15, and the heat will be conducted to the heat-dissipating surface 16 for heat dissipation.

[0034] Working principle: When using the present utility model, it can be directly covered on the surface of the object to be protected, such as mobile phones, tablets, monitors, etc. On the side that does not affect the use of the item, an appropriate amount of plastic skin is stripped off to connect the heat-conducting belt 5 and the film body, and the heat generated inside the item will be dissipated outward from the heat-conducting belt 5.

[0035] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A composite plastic protective film, characterized in that: The invention comprises a film body and a heat-conducting belt (5), wherein the film body is a multi-layer structure, and is divided into a first plastic layer (1), a reinforcement layer (2), a heat-conducting layer (3) and a second plastic layer (4); a reinforcement layer (2) is arranged above the first plastic layer (1), a heat-conducting layer (3) is arranged above the reinforcement layer (2), and a second plastic layer (4) is arranged above the heat-conducting layer (3); the first plastic layer (1), the reinforcement layer (2), the heat-conducting layer (3) and the second plastic layer (4) are tightly connected; a heat-conducting belt (5) is arranged on one side of the film body, and the film body is inserted into the heat-conducting belt (5).

2. A composite plastic protective film according to claim 1, characterized in that: The reinforcement layer (2) comprises a plurality of groups of reinforcement strips (6) intersecting horizontally and vertically, the plurality of groups of reinforcement strips (6) are welded together, and the plurality of groups of reinforcement strips (6) are separated into a plurality of groups of cross grids (7).

3. A composite plastic protective film according to claim 2, characterized in that: The heat-conducting layer (3) comprises a metal fiber layer (8) and a plurality of groups of heat-conducting cylinders (9), each of which is provided with an annular groove (10), the metal fiber layer (8) is sleeved on the plurality of groups of heat-conducting cylinders (9) at positions corresponding to the annular groove (10), and one end of the plurality of groups of heat-conducting cylinders (9) passes through a plurality of groups of cross grids (7).

4. A composite plastic protective film according to claim 3, characterized in that: The second plastic layer (4) is provided with a plurality of groups of cylindrical recessed holes (11) corresponding to the plurality of groups of heat-conducting cylinders (9); the plurality of groups of heat-conducting cylinders (9) are plugged into the plurality of groups of cylindrical recessed holes (11); and the second plastic layer (4) and the heat-conducting layer (3) are plugged and connected via the plurality of groups of heat-conducting cylinders (9).

5. The composite plastic protective film according to claim 4, characterized in that: The first plastic layer (1) is provided with a plurality of groups of cylindrical recessed holes (11) corresponding to the plurality of groups of heat-conducting cylinders (9), and the first plastic layer (1) is provided with a cross groove (12) corresponding to the reinforcement layer (2), the reinforcement layer (2) is snapped into the cross groove (12), the plurality of groups of heat-conducting cylinders (9) pass through one end of the plurality of groups of cross grids (7) and are plugged and connected to the plurality of groups of cylindrical recessed holes (11) on the first plastic layer (1), and the first plastic layer (1) and the heat-conducting layer (3) are plugged and connected via the plurality of groups of heat-conducting cylinders (9).

6. The composite plastic protective film according to claim 1, characterized in that: The heat conducting belt (5) is provided with a connecting device on one side corresponding to the membrane body, a heat dissipation surface (16) is welded on the side of the connecting device facing away from the membrane body, a plug-in slot (13) corresponding to the membrane body is provided on the connecting device, the membrane body is plug-connected to the plug-in slot (13), and a plurality of fixing holes (14) are provided on one side of the connecting device, and a plurality of fixing nails (15) are plugged into the fixing holes (14).

Images