EVA (Ethylene Vinyl Acetate) sheet with conductivity

Abstract

The utility model relates to the technical field of EVA (Ethylene Vinyl Acetate) sheets, in particular to an EVA sheet with conductivity, which comprises an EVA base material layer, a plurality of groups of conductive wires are arranged in the EVA base material layer, the top of the EVA base material layer is fixedly connected with a first waterproof layer, the top of the first waterproof layer is fixedly connected with a second waterproof layer, and the second waterproof layer is fixedly connected with the EVA base material layer. Compared with an existing EVA sheet, in the practical application, the conductive wires are evenly distributed in the EVA base material layer to form a conductive network, it is ensured that the whole sheet has the good conductive performance, meanwhile, electric contact between the conductive wires and the base material layer and between the conductive wires and the external environment is effectively isolated through the double-layer insulation sleeve, and the service life of the sheet is prolonged. According to the EVA sheet, the current leakage or short circuit phenomenon is prevented, the overall structural stability of the sheet is enhanced through the design of the compression-resistant assembly, the damage risk caused by external pressure is reduced, and therefore the service life of the EVA sheet is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of EVA sheet technology, specifically to an EVA sheet with conductive properties. Background Technology

[0002] EVA is a new type of environmentally friendly plastic foam material with good cushioning, shock resistance, heat insulation, moisture resistance, and chemical corrosion resistance. It is also non-toxic and non-absorbent. EVA rubber and plastic products can be designed and processed into various shapes. Its shock resistance is better than that of traditional foam materials such as polystyrene, and it meets environmental protection requirements.

[0003] In some applications, conductive lines or sheets are often embedded on or inside the surface of EVA sheets for circuit connection. However, traditional EVA sheets do not have conductive properties and have poor waterproof performance. If conductive sheets are adhered to the surface, short circuits can easily occur. Therefore, it is particularly important to improve existing EVA sheets and design a new type of conductive EVA sheet to solve the above-mentioned technical defects and improve the overall practicality of EVA sheets. Utility Model Content

[0004] The purpose of this invention is to provide an EVA sheet with conductive properties. In practical applications, conductive wires are evenly distributed inside the EVA substrate layer to form a conductive network, ensuring that the sheet as a whole has good conductivity. At the same time, the use of double-layer insulating sleeves effectively isolates the conductive wires from electrical contact with the substrate layer and the external environment, preventing current leakage or short circuits and improving the insulation performance of the sheet. The design of the pressure-resistant components enhances the overall structural stability of the sheet, reduces the risk of damage caused by external pressure, and thus extends the service life of the EVA sheet, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An EVA sheet with conductive properties includes an EVA substrate layer, the interior of which is provided with multiple sets of conductive wires, a first waterproof layer is fixedly connected to the top of the EVA substrate layer, a second waterproof layer is fixedly connected to the top of the first waterproof layer, and a wear-resistant layer is fixedly connected to the interior of the second waterproof layer.

[0007] The conductive wire is used to increase the conductivity of the EVA substrate layer, and a pressure-resistant component is provided on the outside of the conductive wire;

[0008] The pressure-resistant component is used to increase the pressure resistance of the conductive wire. The pressure-resistant component includes a first insulating sleeve fixedly connected to the outside of the conductive wire, a second insulating sleeve provided outside the first insulating sleeve, and elastic support plates fixedly connected to all four sides of the inner side of the second insulating sleeve. Two sets of elastic support strips are fixedly connected inside the elastic support plates.

[0009] As a preferred embodiment of this utility model, the elastic support sheet has a semi-circular structure design, and the elastic support strip is fixedly connected to the first insulating sleeve.

[0010] As a preferred embodiment of this utility model, a tensile sleeve is fixedly connected to the outer side of the second insulating sleeve, and multiple sets of first tensile strips are fixedly connected to the outer side of the tensile sleeve, and the multiple sets of first tensile strips are connected by second tensile strips.

[0011] As a preferred embodiment of this utility model, the tensile sleeve has connecting grooves on all four sides, and an elastic strip is fixedly connected inside the connecting grooves.

[0012] As a preferred embodiment of this utility model, both the first waterproof layer and the second waterproof layer are made of waterproof material. Multiple sets of ventilation grooves are formed at the bottom of the interior of the second waterproof layer, and a receiving groove is formed at the top of the ventilation groove, and a through groove is formed at the top of the receiving groove.

[0013] As a preferred embodiment of this utility model, the interior of the receiving groove is provided with an expansion ball, which is a water-absorbing expansion ball.

[0014] As a preferred embodiment of this utility model, the multiple sets of the breathable grooves, receiving grooves and through grooves are all distributed at equal intervals inside the second waterproof layer.

[0015] As a preferred embodiment of this utility model, the top of the wear-resistant layer is fixedly connected with multiple sets of wear-resistant strips, and the wear-resistant strips are designed in a semi-circular structure.

[0016] As a preferred embodiment of this utility model, the surfaces of both the wear-resistant strip and the wear-resistant layer are covered with wear-resistant coating, and an elastic block is fixedly connected inside the wear-resistant layer and at the bottom of the wear-resistant strip.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. In this utility model, through the design of conductive lines, the conductive lines are evenly distributed inside the EVA substrate layer in practical applications to form a conductive network, ensuring that the sheet as a whole has good conductivity.

[0019] 2. In this utility model, through the design of the anti-compression component, the first insulating sleeve directly wraps around the outside of the conductive wire, providing initial insulation protection for the conductive wire. The second insulating sleeve further wraps around the outside of the first insulating sleeve, forming a double-layer insulation protection, effectively isolating the conductive wire from the external environment and preventing current leakage or short circuit. The elastic support sheet is fixedly connected around the inside of the second insulating sleeve to form a support frame. Two sets of elastic support strips are fixedly connected inside the elastic support sheet, further enhancing the stability and anti-compression performance of the support structure. When the EVA substrate layer is subjected to external pressure, the elastic support sheet and elastic support strips can absorb and disperse the pressure, preventing the conductive wire from being directly squeezed and damaged. The design of the double-layer insulating sleeve and elastic support structure significantly improves the anti-compression capability of the conductive wire in the EVA substrate layer, preventing damage to the conductive wire caused by external pressure. The use of the double-layer insulating sleeve effectively isolates the electrical contact between the conductive wire and the substrate layer and the external environment, preventing current leakage or short circuit, improving the insulation performance of the sheet. The design of the anti-compression component enhances the overall structural stability of the sheet, reduces the risk of damage caused by external pressure, and thus extends the service life of the EVA sheet.

[0020] 3. In this utility model, through the design of the first and second waterproof layers, multiple sets of ventilation grooves are opened at the bottom of the second waterproof layer to allow air circulation while keeping the inside of the sheet dry. A receiving groove is opened at the top of the ventilation grooves to hold water-absorbing expansion balls. A through groove is further opened at the top of the receiving groove to ensure the connectivity of the overall structure. Water-absorbing expansion balls are placed inside the receiving grooves. When water enters the sheet, the expansion balls absorb water and expand, sealing the ventilation grooves and preventing water penetration. The double-layer waterproof design significantly improves the waterproof performance of the EVA sheet, effectively blocking the intrusion of external moisture and protecting the internal conductive wires and other structures from damage. The ventilation grooves allow air circulation under normal conditions, helping to maintain a dry environment inside the sheet and preventing dampness and mold. The design of the water-absorbing expansion balls allows the sheet to adapt to different humidity environments. When encountering moisture, it can automatically seal the ventilation grooves, further enhancing the waterproof effect. Through effective waterproofing and maintaining internal dryness, the double-layer waterproof design extends the service life of the EVA sheet and reduces damage and maintenance costs caused by water erosion. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the second waterproof layer structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the anti-compression component structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the first insulating sleeve structure of this utility model.

[0025] In the diagram: 1. EVA substrate layer; 2. Conductive wire; 3. First waterproof layer; 4. Second waterproof layer; 5. Wear-resistant layer; 6. Compression-resistant component; 7. First insulating sleeve; 8. Second insulating sleeve; 9. Elastic support sheet; 10. Elastic support strip; 11. Tensile sleeve; 12. First tensile strip; 13. Second tensile strip; 14. Connecting groove; 15. Elastic strip; 16. Ventilation groove; 17. Receiving groove; 18. Through groove; 19. Expansion ball; 20. Wear-resistant strip. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] Example:

[0028] Please see Figures 1-4 This utility model provides a technical solution:

[0029] An EVA sheet with conductive properties includes an EVA substrate layer 1, multiple sets of conductive wires 2 are provided inside the EVA substrate layer 1, a first waterproof layer 3 is fixedly connected to the top of the EVA substrate layer 1, a second waterproof layer 4 is fixedly connected to the top of the first waterproof layer 3, and a wear-resistant layer 5 is fixedly connected inside the second waterproof layer 4.

[0030] The conductive wire 2 is used to increase the conductivity of the EVA substrate layer 1. The outer side of the conductive wire 2 is provided with the anti-compression component 6. In practical applications, the conductive wire 2 is evenly distributed inside the EVA substrate layer 1 to form a conductive network, ensuring that the sheet as a whole has good conductivity.

[0031] The pressure-resistant component 6 is used to increase the pressure resistance of the conductive wire 2. The pressure-resistant component 6 includes a first insulating sleeve 7 fixedly connected to the outside of the conductive wire 2. A second insulating sleeve 8 is provided on the outside of the first insulating sleeve 7. Elastic support plates 9 are fixedly connected to the four sides of the inner side of the second insulating sleeve 8. Two sets of elastic support strips 10 are fixedly connected inside the elastic support plates 9.

[0032] Furthermore, the elastic support sheet 9 has a semi-circular structure design, and the elastic support strip 10 is fixedly connected to the first insulating sleeve 7. When the EVA substrate layer 1 is compressed, the elastic support sheet 9 is compressed by the elastic support strip 10, causing deformation. The deformed elastic support sheet 9 and elastic support strip 10 can buffer the pressure. Through the design of the double-layer insulating sleeve and elastic support structure, the compressive strength and insulation performance of the conductive wire 2 are improved, ensuring the safety and stability of the sheet during use, enhancing the compressive strength of the sheet, extending its service life, and ensuring the stable performance of conductivity.

[0033] Among them, the outer side of the second insulating sleeve 8 is fixedly connected to the tensile sleeve 11, and the outer side of the tensile sleeve 11 is fixedly connected to multiple sets of first tensile strips 12. The multiple sets of first tensile strips 12 are connected through second tensile strips 13. The inner perimeter of the tensile sleeve 11 is provided with connecting grooves 14, and elastic strips 15 are fixedly connected inside the connecting grooves 14. Through the design of the tensile sleeve 11 and the tensile strips, the tensile performance of the sheet is improved, preventing deformation or damage due to pulling during use, enhancing the tensile performance of the sheet, and improving its ability to adapt to complex environments.

[0034] Furthermore, both the first waterproof layer 3 and the second waterproof layer 4 are made of waterproof material. The bottom of the second waterproof layer 4 has multiple sets of ventilation grooves 16, with receiving grooves 17 at the top and through grooves 18 at the top of each groove. Inside each receiving groove 17 are expansion balls 19, which are water-absorbing and expanding. These ventilation grooves 16, receiving grooves 17, and through grooves 18 are evenly spaced within the second waterproof layer 4. Through the design of the double waterproof layer, ventilation grooves 16, receiving grooves 17, through grooves 18, and water-absorbing and expanding balls, the sheet achieves both waterproof and breathable properties. When moisture enters the sheet, the expansion balls 19 absorb water and expand, sealing the ventilation grooves 16 and preventing further moisture penetration. Simultaneously, the ventilation grooves 16 allow air circulation under normal conditions, keeping the inside of the sheet dry, thus improving its waterproof performance while ensuring its breathability and extending its service life.

[0035] Furthermore, multiple sets of wear-resistant strips 20 are fixedly connected to the top of the wear-resistant layer 5. The wear-resistant strips 20 have a semi-circular structure design. Both the wear-resistant strips 20 and the surface of the wear-resistant layer 5 are covered with wear-resistant coating. An elastic block is fixedly connected inside the wear-resistant layer 5 and at the bottom of the wear-resistant strips 20. Through the design of the wear-resistant layer 5 and the wear-resistant strips 20, as well as the coverage of the wear-resistant coating, the wear resistance of the sheet is improved. The design of the elastic block increases the elasticity and cushioning capacity of the wear-resistant layer 5, further improving its wear resistance.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An EVA sheet with conductive properties, comprising an EVA substrate layer (1), characterized in that: The EVA substrate layer (1) has multiple sets of conductive wires (2) inside. A first waterproof layer (3) is fixedly connected to the top of the EVA substrate layer (1). A second waterproof layer (4) is fixedly connected to the top of the first waterproof layer (3). A wear-resistant layer (5) is fixedly connected inside the second waterproof layer (4). The conductive wire (2) is used to increase the conductivity of the EVA substrate layer (1), and the outer side of the conductive wire (2) is provided with a pressure-resistant component (6). The pressure-resistant component (6) is used to increase the pressure resistance of the conductive wire (2). The pressure-resistant component (6) includes a first insulating sleeve (7) fixedly connected to the outside of the conductive wire (2). A second insulating sleeve (8) is provided on the outside of the first insulating sleeve (7). Elastic support plates (9) are fixedly connected to the four sides of the inner side of the second insulating sleeve (8). Two sets of elastic support strips (10) are fixedly connected inside the elastic support plate (9).

2. The EVA sheet with conductive properties according to claim 1, characterized in that: The elastic support sheet (9) has a semi-circular structure design, and the elastic support strip (10) is fixedly connected to the first insulating sleeve (7).

3. The EVA sheet with conductive properties according to claim 1, characterized in that: The outer side of the second insulating sleeve (8) is fixedly connected to an anti-tension sleeve (11), and the outer side of the anti-tension sleeve (11) is fixedly connected to multiple sets of first anti-tension strips (12), and the multiple sets of first anti-tension strips (12) are connected by second anti-tension strips (13).

4. The EVA sheet with conductive properties according to claim 3, characterized in that: The tensile sleeve (11) has connecting grooves (14) on all four sides inside, and an elastic strip (15) is fixedly connected inside the connecting groove (14).

5. The EVA sheet with conductive properties according to claim 1, characterized in that: The first waterproof layer (3) and the second waterproof layer (4) are both made of waterproof material. The bottom of the second waterproof layer (4) has multiple sets of ventilation grooves (16). The top of the ventilation grooves (16) has a receiving groove (17). The top of the receiving grooves (17) has a through groove (18).

6. The EVA sheet with conductive properties according to claim 5, characterized in that: The interior of the receiving groove (17) is provided with an expansion ball (19), which is a water-absorbing expansion ball.

7. The EVA sheet with conductive properties according to claim 5, characterized in that: The multiple sets of the breathable grooves (16), receiving grooves (17) and through grooves (18) are all equally spaced inside the second waterproof layer (4).

8. The EVA sheet with conductive properties according to claim 1, characterized in that: The top of the wear-resistant layer (5) is fixedly connected to multiple sets of wear-resistant strips (20), which are designed in a semi-circular structure.

9. The EVA sheet with conductive properties according to claim 8, characterized in that: The surfaces of the wear-resistant strip (20) and the wear-resistant layer (5) are covered with wear-resistant coating. An elastic block is fixedly connected inside the wear-resistant layer (5) and at the bottom of the wear-resistant strip (20).

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