Flexible aluminum-based circuit board

Abstract

The utility model relates to the technical field of flexible circuit boards, in particular to a flexible aluminum-based circuit board. According to the technical scheme, the circuit board comprises a substrate, a plurality of connectors are arranged on the two sides of the upper end of the substrate, wires are arranged between the connectors on the two sides, insulating layers are arranged on the two sides of the substrate, protective layers are arranged on the outer sides of the two insulating layers, and two through holes are formed in the edges of the two sides of the substrate, the insulating layers and the protective layers. When the flexible circuit board is used, the insulating layer and the protective layer are both made of elastic materials, when the flexible circuit board is folded and pressed, the insulating layer and the protective layer can deform under pressure, so that the pressure on the substrate is reduced, the wiring is arranged to be embedded in the substrate, and the wiring is not damaged. According to the flexible circuit board connector, the situation that wires are extruded to be broken and contact is poor can be prevented, when the flexible circuit board is installed, a worker can pinch the upper reinforcing plate and the lower reinforcing plate, the outer wall of the connector is not covered with an insulating layer, and the connector can be easily inserted into an interface.

Description

Technical Field

[0001] This utility model relates to the field of flexible circuit board technology, specifically a flexible aluminum-based circuit board. Background Technology

[0002] Flexible circuit boards, also known as "flexible boards," are printed circuits made from flexible insulating substrates. Flexible circuits offer excellent electrical performance, meeting the design needs for smaller and higher-density installations. They also help reduce assembly steps and enhance reliability. Flexible circuit boards are the only solution to meet the miniaturization and mobility requirements of electronic products. They can be freely bent, rolled, and folded, and can withstand millions of dynamic bends without damaging the wires. They can be arranged arbitrarily according to spatial layout requirements and can move and stretch freely in three-dimensional space, thus achieving integration of component assembly and wire connection. Flexible circuit boards can greatly reduce the size and weight of electronic products, meeting the needs of electronic products developing towards high density, miniaturization, and high reliability. However, in practical use, similar flexible aluminum-based circuit boards still have many drawbacks. For example, existing flexible aluminum-based circuit boards may experience wiring failure when subjected to pressure after bending. Furthermore, due to their excessive softness, they are inconvenient for workers to handle during assembly. Utility Model Content

[0003] The purpose of this invention is to provide a flexible aluminum-based circuit board to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a flexible aluminum-based circuit board, comprising a substrate, wherein a plurality of connectors are provided on both sides of the upper end of the substrate, and traces are provided between the connectors on both sides, wherein an insulating layer is provided on both sides of the substrate, and a protective layer is provided on the outer side of both sets of insulating layers, and two sets of through holes are provided at the edges of the substrate and the insulating and protective layers on both sides.

[0005] When using flexible aluminum-based circuit boards, both the insulation and protective layers are made of elastic materials. When the flexible circuit board is folded and subjected to pressure, the insulation and protective layers can deform under pressure, thereby reducing the pressure on the substrate. The traces are embedded inside the substrate to prevent them from being squeezed and breaking, which could lead to poor contact. When installing the flexible circuit board, workers can hold the upper and lower reinforcing plates. The connector's outer wall is not covered by an insulation layer, allowing the connector to be easily inserted into the interface. The upper and lower reinforcing plates also prevent the multi-layer structure from peeling off.

[0006] As a preferred embodiment of this utility model, the substrate is made of aluminum, the insulating layer is made of polyethylene film, and the substrate and the insulating layer are connected by hot-melt bonding. By providing hot-melt bonding, the two sets of insulating layers can completely wrap the substrate to prevent electrostatic breakdown.

[0007] In a preferred embodiment of this invention, the protective layer is made of polyimide material, and the protective layer and the insulating layer are bonded together by adhesive dispensing.

[0008] As a preferred embodiment of the present invention, an upper reinforcing plate is installed on both sides of the protective layer, and a limit block is fixedly installed at the center of one end of the upper reinforcing plate.

[0009] As a preferred embodiment of this utility model, a lower reinforcing plate is installed on both sides of the protective layer of the other group, and a limiting hole is opened at the center of one end of the lower reinforcing plate; by setting the limiting hole, after the limiting block is inserted into the limiting hole, the upper reinforcing plate and the lower reinforcing plate can fix the flexible circuit board.

[0010] As a preferred technical solution of this utility model, the limiting block passes through the through hole and cooperates with the limiting hole, and the upper reinforcing plate and the lower reinforcing plate are made of polyvinyl chloride material; by setting the upper reinforcing plate and the lower reinforcing plate to polyvinyl chloride material, while ensuring hardness, it can also have good insulation effect.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. By using flexible aluminum-based circuit boards, both the insulating and protective layers are made of elastic materials. When the flexible circuit board is folded and subjected to pressure, the insulating and protective layers can be deformed by the pressure, thereby reducing the pressure on the substrate. The traces are set to be embedded inside the substrate, which can prevent the traces from being squeezed and broken, resulting in poor contact.

[0013] 2. With the upper and lower reinforcing plates installed, workers can hold the upper and lower reinforcing plates when installing the flexible circuit board. The outer wall of the connector is not covered by an insulating layer, so the connector can be easily inserted into the interface. The upper and lower reinforcing plates can also prevent the multi-layer structure from peeling off. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0016] Figure 3 This is a schematic diagram of a half-section of the present invention;

[0017] Figure 4 This is a schematic diagram of the partial explosion structure of this utility model.

[0018] In the diagram: 1. Substrate; 2. Insulating layer; 3. Protective layer; 4. Through hole; 5. Trace; 6. Connector; 7. Upper reinforcing plate; 8. Lower reinforcing plate; 9. Limiting block; 10. Limiting hole. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] Example 1

[0021] like Figure 1 - Figure 4 As shown, the present invention proposes a flexible aluminum-based circuit board, including a substrate 1. Several sets of connectors 6 are provided on both sides of the upper end of the substrate 1, and a trace 5 is provided between the two connectors 6. An insulating layer 2 is provided on both sides of the substrate 1, and a protective layer 3 is provided on the outer side of the two sets of insulating layers 2. Two sets of through holes 4 are provided at the edges of the substrate 1 and the insulating layer 2 and the protective layer 3 on both sides.

[0022] The substrate 1 is made of aluminum, and the insulating layer 2 is made of polyethylene film. The substrate 1 and the insulating layer 2 are connected by hot-melt bonding.

[0023] The protective layer 3 is made of polyimide material, and the protective layer 3 and the insulating layer 2 are bonded together by adhesive.

[0024] The working principle of a flexible aluminum-based circuit board based on Embodiment 1 is as follows: When using the flexible aluminum-based circuit board, both the insulating layer 2 and the protective layer 3 are made of elastic materials. When the flexible circuit board is folded and subjected to pressure, the insulating layer 2 and the protective layer 3 can be deformed by the pressure, thereby reducing the pressure on the substrate 1. The wiring 5 is set to be embedded inside the substrate 1, which can prevent the wiring 5 from being squeezed and breaking, resulting in poor contact. When installing the flexible circuit board, the worker can pinch the upper reinforcing plate 7 and the lower reinforcing plate 8. The outer wall of the connector 6 is not covered by the insulating layer 2, so the connector 6 can be easily inserted into the interface. The upper reinforcing plate 7 and the lower reinforcing plate 8 can also prevent the multilayer structure from peeling off.

[0025] Example 2

[0026] like Figure 1 - Figure 4 As shown, the flexible aluminum-based circuit board proposed in this utility model, compared with Embodiment 1, further includes: an upper reinforcing plate 7 installed on both sides of one set of protective layers 3, a limiting block 9 fixedly installed at the center of one end of the upper reinforcing plate 7, and a lower reinforcing plate 8 installed on both sides of the other set of protective layers 3, a limiting hole 10 opened at the center of one end of the lower reinforcing plate 8, the limiting block 9 passing through the through hole 4 and cooperating with the limiting hole 10, and the upper reinforcing plate 7 and the lower reinforcing plate 8 are made of polyvinyl chloride material.

[0027] In this embodiment, as Figure 1 As shown, by providing a heat-fusion connection, the two sets of insulating layers 2 can completely wrap the substrate 1, preventing electrostatic breakdown; as Figure 4 As shown, by providing a limiting hole 10, after the limiting block 9 is inserted into the limiting hole 10, the upper reinforcing plate 7 and the lower reinforcing plate 8 can fix the flexible circuit board; as Figure 2 As shown, by setting the upper reinforcing plate 7 and the lower reinforcing plate 8 to polyvinyl chloride material, good insulation effect can be achieved while ensuring hardness.

[0028] The above specific embodiments are merely several preferred technical solutions of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A flexible aluminum-based circuit board, comprising a substrate (1), characterized in that: Several sets of connectors (6) are provided on both sides of the upper end of the substrate (1), and wiring (5) is provided between the two sets of connectors (6). Insulating layers (2) are provided on both sides of the substrate (1), and protective layers (3) are provided on the outer side of the two sets of insulating layers (2). Two sets of through holes (4) are provided at the edges of the substrate (1) and the insulating layers (2) and the protective layers (3).

2. The flexible aluminum-based circuit board according to claim 1, characterized in that: The substrate (1) is made of aluminum, the insulating layer (2) is made of polyethylene film, and the substrate (1) and the insulating layer (2) are connected by heat fusion.

3. The flexible aluminum-based circuit board according to claim 1, characterized in that: The protective layer (3) is made of polyimide material, and the protective layer (3) and the insulating layer (2) are bonded together by adhesive.

4. The flexible aluminum-based circuit board according to claim 1, characterized in that: One of the protective layers (3) has an upper reinforcing plate (7) installed on both sides of its edge, and a limit block (9) is fixedly installed at the center of one end of the upper reinforcing plate (7).

5. A flexible aluminum-based circuit board according to claim 1, characterized in that: The other set of protective layers (3) are equipped with lower reinforcing plates (8) on both sides of the edge, and a limiting hole (10) is opened at the center of one end of the lower reinforcing plate (8).

6. A flexible aluminum-based circuit board according to claim 4, characterized in that: The limiting block (9) passes through the through hole (4) and cooperates with the limiting hole (10). The upper reinforcing plate (7) and the lower reinforcing plate (8) are made of polyvinyl chloride.

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