Composite PCB circuit board

Abstract

The utility model discloses a kind of composite PCBs, including circuit board body, the circuit board body is by flexible substrate layer, conducting layer, insulating layer, semi-solidified layer, flexible surface plate layer, rigid surface plate layer and soldering point seat, the lateral surface of flexible substrate layer is provided with insulating layer, and two the conducting layer is provided between the insulating layer, the outside of insulating layer is provided with semi-solidified layer, the outside of semi-solidified layer is provided with rigid surface plate layer, two The flexible surface plate layer is provided between rigid surface plate layer.Based on the utility model with flexible substrate layer whole as base layer, and cooperate bendable flexible surface plate layer, so that the rigid surface plate layer part of circuit board body can be with flexible surface plate layer as base point to bend fold, reduce the overall space of PCB circuit board, to use complex electronic product design, greatly improve the practicality of PCB circuit board.

Description

Technical Field

[0001] This utility model relates to the field of circuit board technology, and more specifically, to a composite PCB circuit board. Background Technology

[0002] PCBs, also known as printed circuit boards, are providers of electrical connections for electronic components. The main advantages of using PCBs are that they greatly reduce wiring and assembly errors, improve automation levels and production efficiency. According to the number of layers, PCBs can be divided into single-sided boards, double-sided boards, four-layer boards, six-layer boards and other multi-layer circuit boards.

[0003] Existing rigid PCBs, due to their fixed shape and size, cannot be bent or folded, which limits their application in some designs and makes them difficult to adapt to complex electronic product designs. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a composite PCB circuit board with a folding function, which improves its practicality and thus solves the problems mentioned in the background technology.

[0006] (II) Technical Solution

[0007] To achieve the aforementioned folding function and improve practicality, the specific technical solution adopted by this utility model is as follows: A composite PCB circuit board includes a circuit board body, which is composed of a flexible substrate layer, a conductive layer, an insulating layer, a semi-cured layer, a flexible surface layer, a rigid surface layer, and solder joints. An insulating layer is disposed on the side surface of the flexible substrate layer, and a conductive layer is disposed between two insulating layers. A semi-cured layer is disposed on the outside of the insulating layer, a rigid surface layer is disposed on the outside of the semi-cured layer, and a flexible surface layer is disposed between two rigid surface layers.

[0008] Furthermore, a fixing seat is fixed to the surface of the circuit board body by bolts, and an L-shaped limiting rod is connected to the side surface of the fixing seat by a rotating shaft. A sliding groove seat is provided on one side of the L-shaped limiting rod, and the sliding groove seat is fixedly connected to the circuit board body by bolts.

[0009] Furthermore, the rigid panel layer has a slot on its side surface, and the flexible panel layer has a strip on its side surface, with the strip fused to the slot.

[0010] Furthermore, the surface of the circuit board body is coated with solder resist.

[0011] Furthermore, the surface of the rigid surface layer is provided with solder joint seats, and the solder joint seats are connected to the conductive layer via connecting rods.

[0012] Furthermore, the surface of the circuit board body is provided with mounting holes, and multiple mounting holes are provided, with the multiple mounting holes respectively located at the four corners of the surface of the circuit board body.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, the present invention provides a composite PCB circuit board, which has the following beneficial effects:

[0015] (1) This utility model uses the flexible substrate layer as the base layer and is combined with a flexible bendable surface layer, so that the rigid surface layer of the circuit board body can be bent and folded with the flexible surface layer as the base point, reducing the overall space occupied by the PCB circuit board, so as to use complex electronic product designs and greatly improving the practicality of the PCB circuit board.

[0016] (2) By setting a fixed seat, an L-shaped limiting rod and a sliding groove seat, when the PCB circuit board is folded and bent, one end of the L-shaped limiting rod rotates through the rotating shaft, while the other end of the L-shaped limiting rod slides in the sliding groove seat, thereby promoting a certain distance between the two rigid surface layers, avoiding excessive bending of the flexible substrate layer and the flexible surface layer, which would cause damage to the PCB circuit board. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram of a composite PCB circuit board according to an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of a composite PCB circuit board according to an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the rigid surface layer and the flexible surface layer of a composite PCB circuit board according to an embodiment of the present utility model.

[0021] Figure 4 This is a schematic diagram of an L-shaped limiting rod connection structure of a composite PCB circuit board according to an embodiment of the present utility model.

[0022] In the picture:

[0023] 1. Circuit board body; 2. Flexible substrate layer; 3. Conductive layer; 4. Insulating layer; 5. Semi-cured layer; 6. Flexible surface panel layer; 7. Rigid surface panel layer; 8. Fixing base; 9. Solder joint base; 10. Slot; 11. Locking strip; 12. Mounting hole; 13. Slide seat; 14. L-shaped limit rod. Detailed Implementation

[0024] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0025] According to an embodiment of the present invention, a composite PCB circuit board is provided.

[0026] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4 As shown, a composite PCB circuit board according to an embodiment of the present invention includes a circuit board body 1. The circuit board body 1 is composed of a flexible substrate layer 2, a conductive layer 3, an insulating layer 4, a semi-cured layer 5, a flexible surface layer 6, a rigid surface layer 7, and solder joints 9. An insulating layer 4 is disposed on the side surface of the flexible substrate layer 2, and a conductive layer 3 is disposed between two insulating layers 4. A semi-cured layer 5 is disposed on the outside of the insulating layer 4, and a rigid surface layer 7 is disposed on the outside of the semi-cured layer 5. A flexible surface layer 6 is disposed between two rigid surface layer 7.

[0027] In one embodiment, the flexible substrate layer 2 is used as the base layer and is combined with the flexible surface layer 6, so that the rigid surface layer 7 of the circuit board body 1 can be bent and folded with the flexible surface layer 6 as the base point, reducing the overall space occupied by the PCB circuit board, enabling the use of complex electronic product designs, and greatly improving the practicality of the PCB circuit board.

[0028] Specifically, a fixing seat 8 is fixed to the surface of the circuit board body 1 by bolts, and an L-shaped limiting rod 14 is connected to the side surface of the fixing seat 8 by a rotating shaft. A sliding groove seat 13 is provided on one side of the L-shaped limiting rod 14, and the sliding groove seat 13 is fixedly connected to the circuit board body 1 by bolts.

[0029] In one embodiment, when the PCB circuit board is folded and bent, one end of its L-shaped limiting rod 14 rotates through a pivot, while the other end of the L-shaped limiting rod 14 slides within the slide seat 13, thereby ensuring a certain distance between the two rigid surface layer 7 and preventing excessive bending of the flexible substrate layer 2 and the flexible surface layer 6, which could damage the PCB circuit board.

[0030] Specifically, the rigid panel layer 7 has a slot 10 on its side surface, and the flexible panel layer 6 has a strip 11 on its side surface, with the strip 11 fused to the slot 10.

[0031] In one embodiment, a one-piece structure is used, resulting in a tighter connection without gaps.

[0032] Specifically, the surface of the circuit board body 1 is coated with solder resist.

[0033] In one embodiment, the surface of the circuit board body 1 is protected.

[0034] Specifically, the surface of the rigid panel layer 7 is provided with solder joint seats 9, and the solder joint seats 9 are connected to the conductive layer 3 through connecting rods.

[0035] In one embodiment, it is used to solder electronic components to a soldering socket.

[0036] Specifically, mounting holes 12 are provided on the surface of the circuit board body 1, and multiple mounting holes 12 are provided, which are respectively provided at the four corners of the surface of the circuit board body 1.

[0037] In one embodiment, the mounting holes 12 facilitate the mounting and fixing of the PCB circuit board.

[0038] Working principle: Using the flexible substrate layer 2 as the base layer and the flexible surface layer 6 as a base, the rigid surface layer 7 of the circuit board body 1 can be bent and folded with the flexible surface layer 6 as the base point, reducing the overall space occupied by the PCB circuit board, making it suitable for complex electronic product designs and greatly improving the practicality of the PCB circuit board; when the PCB circuit board is bent, one end of its L-shaped limiting rod 14 rotates through the pivot, while the other end of the L-shaped limiting rod 14 slides in the slide seat 13, thereby keeping a certain distance between the two rigid surface layer layers 7, avoiding excessive bending of the flexible substrate layer 2 and the flexible surface layer 6, which could damage the PCB circuit board.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A composite PCB circuit board, comprising a circuit board body (1), characterized in that, The circuit board body (1) is composed of a flexible substrate layer (2), a conductive layer (3), an insulating layer (4), a semi-cured layer (5), a flexible surface layer (6), a rigid surface layer (7), and a solder pad (9). The side surface of the flexible substrate layer (2) is provided with an insulating layer (4), and a conductive layer (3) is provided between two insulating layers (4). A semi-cured layer (5) is provided on the outside of the insulating layer (4), a rigid surface layer (7) is provided on the outside of the semi-cured layer (5), and a flexible surface layer (6) is provided between two rigid surface layers (7).

2. The composite PCB circuit board according to claim 1, characterized in that, The surface of the circuit board body (1) is fixed with a fixing seat (8) by bolts. The side surface of the fixing seat (8) is connected with an L-shaped limiting rod (14) by a rotating shaft. A sliding groove seat (13) is provided on one side of the L-shaped limiting rod (14), and the sliding groove seat (13) is fixedly connected to the circuit board body (1) by bolts.

3. A composite PCB circuit board according to claim 2, characterized in that, The rigid panel layer (7) has a slot (10) on its side surface, and the flexible panel layer (6) has a strip (11) on its side surface, and the strip (11) is fused into the slot (10).

4. A composite PCB circuit board according to claim 3, characterized in that, The surface of the circuit board body (1) is coated with solder resist.

5. A composite PCB circuit board according to claim 4, characterized in that, The surface of the rigid panel layer (7) is provided with a solder joint seat (9), and the solder joint seat (9) is connected to the conductive layer (3) through a connecting rod.

6. A composite PCB circuit board according to claim 5, characterized in that, The circuit board body (1) has mounting holes (12) on its surface, and multiple mounting holes (12) are provided. The multiple mounting holes (12) are respectively located at the four corners of the surface of the circuit board body (1).

Images