A pet line structure

Abstract

The utility model discloses a PET line structure, including PET layer, PET layer one side is provided with the front silver line layer, still include the water glue layer, the water glue layer is coated on PET layer and is located in the slit of front silver line layer, the front silver line layer is provided with the bottom plate away from PET layer one side, PET layer and bottom plate are connected through the water glue layer, the bottom plate is provided with the connection silver point to front silver line layer one side, the front silver line layer includes multilayer line, and the through -connection point of multilayer line is the cross double -line structure, and the silver point is one -to -one correspondence with cross double -line structure, when silver point and cross double -line structure contact, and the two line through -connection of this cross double -line structure corresponds, and the complexity of the traditional structure is simplified to the structure, reduces the production step, thereby shortens the production cycle and reduces the cost.

Description

Technical Field

[0001] This utility model relates to the field of membrane switches, and in particular to a PET circuit structure. Background Technology

[0002] Currently, the PET circuit structure in the membrane switch field includes the following components: upper PET layer, silver wire circuit, water-based adhesive structure, middle PET layer, silver paste circuit, water-based adhesive structure, lower PET layer, silver paste circuit, and substrate. Therefore, the current PET circuit structure is complex, has a long production cycle, and is costly. Furthermore, due to its complexity, problems are prone to occur during assembly and maintenance, affecting product reliability and lifespan. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a PET circuit structure that is simple in structure and easy to manufacture.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a PET circuit structure, including a PET layer, a front silver wire layer is provided on one side of the PET layer, and a water adhesive layer is also included. The water adhesive layer is coated on the PET layer and located in the gap of the front silver wire layer. A base plate is provided on the side of the front silver wire layer away from the PET layer. The PET layer and the base plate are connected by the water adhesive layer. A connecting silver point is provided on the side of the base plate facing the front silver wire layer.

[0005] The front silver wire layer includes multiple layers of circuits. The connection points of the multiple layers of circuits are cross-double-line structures. Each silver point corresponds to a cross-double-line structure. When a silver point contacts a cross-double-line structure, the two lines corresponding to the cross-double-line structure are connected.

[0006] Furthermore, the cross-double-effect structure includes a first connecting main line and a second connecting main line. The end of the first connecting main line is provided with multiple first connecting branch lines, and the end of the second connecting main line is provided with multiple second connecting branch lines. The multiple first connecting branch lines and the multiple second connecting branch lines are interleaved and do not contact each other.

[0007] Furthermore, the width of the first branch and the second branch is 0.12 mm, and the distance between adjacent first and second branches is 0.16 mm.

[0008] Furthermore, the thickness of the front silver line layer is 5μm, the thickness of the silver dots is 5μm, and the thickness of the water-based adhesive layer is 20μm.

[0009] Furthermore, a connecting silver wire layer is provided on the side of the PET layer away from the front silver wire layer, a filling core is provided on the PET layer, and a connecting silver paste is provided inside the filling core. The front silver wire layer and the connecting silver wire layer are connected through the connecting silver paste.

[0010] Furthermore, the front silver line layer and the water-based adhesive layer are applied to the PET layer by printing.

[0011] The beneficial effects of this utility model are:

[0012] 1. The PET circuit structure provided by this utility model simplifies the complexity of traditional structures, reduces production steps, thereby shortening the production cycle and reducing costs. By adopting a simple layered structure and using a water-based adhesive layer to achieve a firm connection between the PET layer and the base plate, while the front silver wire layer and the base plate achieve circuit conductivity through the contact of silver points, the convenience of assembly and ease of maintenance are improved.

[0013] 2. In the PET circuit structure design of this utility model, the front silver wire layer adopts a multi-layer circuit design and achieves conductive connection through a cross-double wire structure. This design not only improves the density of the circuit but also ensures good insulation between the circuits, avoiding short circuits. Simultaneously, it reduces the cost of the middle and lower PET layers, enhancing the product's competitiveness in the market. Attached Figure Description

[0014] Figure 1 This is an exploded view of the PET circuit structure according to an embodiment of this application.

[0015] Figure 2 This is a schematic diagram of the cross-double line structure in the PET circuit structure of this application embodiment.

[0016] The diagram is labeled as follows: PET layer 1, front silver wire layer 2, water adhesive layer 3, base plate 4, connecting silver point 5, first connecting main line 6, second connecting main line 7, first connecting branch line 8, second connecting branch line 9, connecting silver wire layer 10. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] like Figure 1 As shown, an embodiment of this application discloses a PET circuit structure, characterized in that: it includes a PET layer 1, a front silver wire layer 2 is disposed on one side of the PET layer 1, and a water-based adhesive layer 3 is also included. The water-based adhesive layer 3 is coated on the PET layer 1 and located in the gap of the front silver wire layer 2. A base plate 4 is disposed on the side of the front silver wire layer 2 away from the PET layer 1. The PET layer 1 and the base plate 4 are connected by the water-based adhesive layer 3. A connecting silver point 5 is disposed on the side of the base plate 4 facing the front silver wire layer 2.

[0019] The front silver wire layer 2 includes multiple layers of circuits. The connection points of the multiple layers of circuits are cross-double-line structures. Each silver point corresponds to a cross-double-line structure. When a silver point contacts a cross-double-line structure, the two lines corresponding to the cross-double-line structure are connected.

[0020] Specifically, this PET circuit structure is used in the field of membrane keyboards and is one of the core components of membrane keyboards. In practical applications, when a user presses a key on the keyboard, the connecting silver point 5 corresponding to that key will contact the cross double line structure in the front silver line layer 2, thereby realizing the conduction of the circuit, transmitting the signal to the circuit board, and thus completing the input of the command.

[0021] The above-described structure simplifies the complexity of traditional structures, reduces production steps, thereby shortening the production cycle and lowering costs. By employing a simple layered structure and utilizing the water-based adhesive layer 3 to achieve a strong connection between the PET layer 1 and the base plate 4, while the front silver wire layer 2 achieves electrical conductivity with the base plate 4 through silver point contact, assembly convenience and ease of maintenance are improved. Furthermore, the front silver wire layer 2 in this structure employs a multi-layered circuit design, achieving electrical connection through a cross-double-wire structure. This design not only increases the density of the circuitry but also ensures good insulation between the wires, preventing short circuits. Simultaneously, it reduces the cost of the middle and lower PET layers, enhancing the product's competitiveness in the market.

[0022] In this embodiment, the cross-double-effect structure includes a first connecting main line 6 and a second connecting main line 7. The end of the first connecting main line 6 is provided with multiple first connecting branch lines 8, and the end of the second connecting main line 7 is provided with multiple second connecting branch lines 9. The multiple first connecting branch lines 8 and the multiple second connecting branch lines 9 are staggered and do not contact each other.

[0023] Specifically, multiple first connecting branches 8 and multiple second connecting branches 9 are evenly distributed, ensuring the stability and reliability of the conductive connection. When the user presses a key on the keyboard, the connecting silver point 5 can accurately contact the cross-connected double-wire structure, enabling rapid signal transmission. Furthermore, this staggered design enhances the anti-interference capability of the circuit structure, effectively avoiding interference from external factors on signal transmission, and improving the stability and durability of the product.

[0024] In this embodiment, the width of the first branch and the second branch is 0.12 mm, and the distance between adjacent first and second branches is 0.16 mm.

[0025] Specifically, the width and spacing design in the above structure ensures a high-density arrangement of the circuitry while guaranteeing the insulation performance between the circuits, thus avoiding short circuits caused by the circuits being too close together. Furthermore, this refined circuit design helps reduce material usage, further lowering costs.

[0026] In this embodiment, the thickness of the front silver line layer 2 is 5 μm, the thickness of the silver dots is 5 μm, and the thickness of the water adhesive layer 3 is 20 μm.

[0027] Specifically, this thickness design not only ensures structural stability and durability but also contributes to good conductivity and connection reliability. The thickness of the front silver wire layer 2 and the silver dots ensures they can withstand certain pressure and abrasion, while the thickness of the adhesive layer 3 provides sufficient adhesion and cushioning to ensure a firm connection between the PET layer 1 and the base plate 4. Furthermore, the design places the thickness of the adhesive layer 3 greater than the sum of the thicknesses of the front silver wire layer 2 and the silver dots, ensuring that the front silver wire layer 2 will not contact the silver dots when no external force is applied, guaranteeing that the circuit is disconnected when not in use and preventing the possibility of accidental triggering. When the user presses the keyboard, the connecting silver dots 5 overcome the elastic force of the adhesive layer 3 and contact the cross-double wire structure in the front silver wire layer 2, achieving circuit continuity. This design ensures both reliability and improved product safety.

[0028] In this embodiment, a connecting silver wire layer 10 is provided on the side of the PET layer 1 away from the front silver wire layer 2. A filling core is provided on the PET layer 1, and a connecting silver paste is provided inside the filling core. The front silver wire layer 2 and the connecting silver wire layer 10 are connected through the connecting silver paste.

[0029] Specifically, in practical applications, the connecting silver wire layer 10 can serve as a connection bridge with other electronic components. It achieves conductivity with the front silver wire layer 2 through the connecting silver paste in the core, thereby expanding the application range and function of the PET circuit structure. For example, the setting of the connecting silver wire layer 10 can make the front silver wire layer 2 and the structure on the other side of the PET layer 1 conduct.

[0030] In this embodiment, the front silver line layer 2 and the water-based adhesive layer 3 are applied to the PET layer 1 by printing.

[0031] Specifically, the use of printing not only improves production efficiency but also ensures the precision and consistency of the circuit structure. Through precise printing processes, the front silver line layer 2 and the water-based adhesive layer 3 can be accurately placed on the PET layer 1, avoiding errors that may occur with manual operation, thereby improving product quality and reliability. Furthermore, printing is suitable for large-scale production, helping to reduce production costs and meet market demands.

[0032] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A PET circuit structure, characterized in that: It includes a PET layer (1), a front silver wire layer (2) is provided on one side of the PET layer (1), and a water adhesive layer (3) is also included. The water adhesive layer (3) is coated on the PET layer (1) and located in the gap of the front silver wire layer (2). A base plate (4) is provided on the side of the front silver wire layer (2) away from the PET layer (1). The PET layer (1) and the base plate (4) are connected by the water adhesive layer (3). A connecting silver point (5) is provided on the side of the base plate (4) facing the front silver wire layer (2). The front silver wire layer (2) includes multiple layers of circuits. The connection point of the multiple layers of circuits is a cross double-line structure. The silver point corresponds to the cross double-line structure one by one. When the silver point contacts the cross double-line structure, the two lines corresponding to the cross double-line structure are connected.

2. The PET circuit structure as described in claim 1, characterized in that: The cross-double-effect structure includes a first connecting main line (6) and a second connecting main line (7). The end of the first connecting main line (6) is provided with multiple first connecting branch lines (8), and the end of the second connecting main line (7) is provided with multiple second connecting branch lines (9). The multiple first connecting branch lines (8) and the multiple second connecting branch lines (9) are staggered and do not contact each other.

3. The PET circuit structure as described in claim 2, characterized in that: The width of the first branch and the second branch is 0.12 mm, and the distance between adjacent first and second branches is 0.16 mm.

4. The PET circuit structure as described in claim 1, characterized in that: The thickness of the front silver wire layer (2) is 5μm, the thickness of the silver dots is 5μm, and the thickness of the water adhesive layer (3) is 20μm.

5. The PET circuit structure as described in claim 1, characterized in that: A connecting silver wire layer (10) is provided on the side of the PET layer (1) away from the front silver wire layer (2). A filling core is provided on the PET layer (1), and a connecting silver paste is provided inside the filling core. The front silver wire layer (2) and the connecting silver wire layer (10) are connected through the connecting silver paste.

6. The PET circuit structure as described in claim 1, characterized in that: The front silver wire layer (2) and the water adhesive layer (3) are applied to the PET layer (1) by printing.

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