Double-layer stacked circuit board

Abstract

The utility model discloses a double-layer superposed circuit board, which structurally comprises an upper circuit board, a soft rubber strip, an upper frame shell, an overturning and folding mechanism, a lower circuit board, a lower frame shell and a connecting transverse strip, and the outer side of the upper circuit board is bonded with the inner side of the upper frame shell. According to the structure, the upper circuit board and the lower circuit board are integrally connected through the connecting transverse strip and the soft rubber strip, and then the connecting arm is matched with the U-shaped folding arm to connect the upper circuit board and the lower circuit board at the front end for folding; furthermore, in the folding process, a fixing pin on the right side of the U-shaped folding arm is connected with an auxiliary positioning line, angle positioning in the folding process can be conducted, the front end of a limiting plate on the inner side of a folding arc-shaped edge is connected with a shaft pin through a rubber strip, and the limiting plate can slide up and down along a sliding rail groove plate in the folding process, so that convenience of the stacking and folding process is guaranteed; and the quickness of the overlapping and folding process of the whole double-layer circuit board is improved, and the practicability is guaranteed.

Description

Technical Field

[0001] The utility model discloses a double-layer superimposed circuit board, belonging to the technical field of circuit boards. Background Art

[0002] Circuit boards make circuits miniaturized and intuitive, and play an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. Circuit boards can be called printed circuit boards or printed circuit boards, FPC circuit boards, and FPC circuit boards are also called flexible circuit boards. Flexible circuit boards are made of polyimide or polyester film as a substrate and are highly reliable and extremely flexible printed circuit boards. However, the prior art is relatively cumbersome for the stacking and folding operations of circuit boards, which makes it easy for the circuit boards to become offset and loose after being stacked, reducing the overall practicality. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a double-layer stacked circuit board to solve the problem that the stacking and folding operations of the circuit boards in the prior art are relatively cumbersome, resulting in the circuit boards being easily offset and loose after being stacked, thereby reducing the overall practicality.

[0004] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a double-layer superimposed circuit board, whose structure includes an upper circuit board, a soft rubber strip, an upper frame shell, a flip and folding mechanism, a lower circuit board, a lower frame shell, and a connecting horizontal bar, the outer side of the upper circuit board is bonded to the inner side of the upper frame shell, the right end of the upper circuit board is connected to the left end of the soft rubber strip, the inner side of the flip and folding mechanism is embedded and installed in the two ends of the soft rubber strip, the right end of the upper frame shell is connected to the left end of the flip and folding mechanism, the outer side of the lower circuit board is bonded to the inner side of the lower frame shell, the right end of the flip and folding mechanism is connected to the left end of the lower frame shell, and the lower end of the lower circuit board is bonded to the upper end of the connecting horizontal bar.

[0005] Furthermore, the flipping and folding mechanism is composed of a connecting arm, an axle pin, a folding arc edge, a rubber strip, a limit plate, an auxiliary positioning line, a fixing pin, a U-shaped folding arm, and a slide rail groove plate. The lower end of the connecting arm is connected to the upper end of the axle pin, the outer ring of the axle pin and the inner side of the slide rail groove plate have the same axis, the axle pin is connected to the limit plate through a rubber strip, the inner side of the folding arc edge is in contact with the outer side of the limit plate, the right end of the U-shaped folding arm is connected to the auxiliary positioning line through a fixing pin, and the lower end of the auxiliary positioning line is connected to the upper end of the limit plate.

[0006] Furthermore, the lower end of the upper circuit board is bonded to the upper end of the connecting horizontal bar.

[0007] Furthermore, the upper end of the connecting arm is connected to the lower end of the connecting horizontal bar.

[0008] Furthermore, the left end of the lower circuit board is connected to the right end of the soft rubber strip.

[0009] Furthermore, the soft rubber strip is made of rubber and has toughness.

[0010] Furthermore, the shaft pin is made of aluminum alloy and is corrosion-resistant. Beneficial Effects

[0011] The utility model discloses a double-layer stacked circuit board, in which the upper circuit board and the lower circuit board are connected as a whole through a connecting horizontal bar and a soft rubber strip on the structure, and then the connecting arm cooperates with the U-shaped folding arm to connect the upper circuit board and the lower circuit board at the front end for folding, and further in the folding process, the fixing pin on the right side of the U-shaped folding arm is connected to the auxiliary positioning line to perform angle positioning in the folding process, and the front end of the limit plate on the inner side of the folding arc edge is connected to the shaft pin through the rubber strip, and during the folding process, it will slide up and down along the slide rail groove plate to ensure the convenience of the stacking and folding process, thereby improving the speed of the stacking and folding process of the overall double-layer circuit board and ensuring practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0013] Figure 1 This is a schematic diagram of the structure of a double-layer stacked circuit board of the utility model;

[0014] Figure 2 This is a schematic diagram of a double-layer stacked structure of the utility model;

[0015] Figure 3 The utility model is a structural schematic diagram of a flipping and folding mechanism.

[0016] In the figure: upper circuit board -1, soft rubber strip -2, upper frame shell -3, flip folding mechanism -4, lower circuit board -5, lower frame shell -6, connecting horizontal bar -7, connecting arm -41, axle pin -42, folding arc edge -43, rubber strip -44, limit plate -45, auxiliary positioning line -46, fixing pin -47, U-shaped folding arm -48, slide rail groove plate -49. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] See also Figure 1 , Figure 2 , Figure 3The utility model provides a technical solution for a double-layer stacked circuit board: its structure includes an upper circuit board 1, a soft rubber strip 2, an upper frame shell 3, a flipping and folding mechanism 4, a lower circuit board 5, a lower frame shell 6, and a connecting horizontal bar 7. The outer side of the upper circuit board 1 is bonded to the inner side of the upper frame shell 3, the right end of the upper circuit board 1 is connected to the left end of the soft rubber strip 2, the inner side of the flipping and folding mechanism 4 is embedded and installed in the two ends of the soft rubber strip 2, the right end of the upper frame shell 3 is connected to the left end of the flipping and folding mechanism 4, the outer side of the lower circuit board 5 is bonded to the inner side of the lower frame shell 6, the right end of the flipping and folding mechanism 4 is connected to the left end of the lower frame shell 6, the lower end of the lower circuit board 5 is bonded to the upper end of the connecting horizontal bar 7, and the flipping and folding mechanism 4 is composed of a connecting arm 41, an axle pin 42, a folding arc edge 43, a rubber strip 44, a limit plate 45, and an auxiliary positioning line 4 6. It is composed of a fixing pin 47, a U-shaped folding arm 48, and a slide rail groove plate 49. The lower end of the connecting arm 41 is connected to the upper end of the shaft pin 42. The outer ring of the shaft pin 42 and the inner side of the slide rail groove plate 49 are on the same axis. The shaft pin 42 is connected to the limit plate 45 through a rubber strip 44. The inner side of the folded arc edge 43 is in contact with the outer side of the limit plate 45. The right end of the U-shaped folding arm 48 is connected to the auxiliary positioning line 46 through a fixing pin 47. The lower end of the auxiliary positioning line 46 is connected to the upper end of the limit plate 45. The lower end of the upper circuit board 1 is bonded to the upper end of the connecting horizontal bar 7. The upper end of the connecting arm 41 is connected to the lower end of the connecting horizontal bar 7. The left end of the lower circuit board 5 is connected to the right end of the soft rubber strip 2. The soft rubber strip 2 is made of rubber and has toughness. The shaft pin 42 is made of aluminum alloy and has corrosion resistance.

[0019] The rubber strip 44 mentioned in this patent is a rubber formed by solution copolymerization of ethylene and propylene, and then a third monomer is introduced. EPDM rubber is basically a saturated polymer with very good aging resistance, good weather resistance, excellent electrical insulation performance, good chemical corrosion resistance, and good impact elasticity.

[0020] When in use, the upper circuit board 1 and the lower circuit board 5 are connected as a whole through the connecting horizontal bar 7 and in cooperation with the soft rubber strip 2, and then the connecting arm 41 cooperates with the U-shaped folding arm 48 to connect the upper circuit board 1 and the lower circuit board 5 at the front end for folding. Furthermore, during the folding process, the fixing pin 47 on the right side of the U-shaped folding arm 48 is connected to the auxiliary positioning line 46 to enable angle positioning during the folding process. Furthermore, the front end of the limiting plate 45 on the inner side of the folding arc edge 43 is connected to the axle pin 42 through the rubber strip 44. During the folding process, it will slide up and down along the slide rail groove plate 49 to ensure the convenience of the stacking and folding process.

[0021] The utility model solves the problem that the prior art has complicated operations for stacking and folding circuit boards, which results in the circuit boards being easily offset and loosened after being stacked, thus reducing the overall practicality. The utility model combines the above-mentioned components with each other, and the upper circuit board and the lower circuit board are connected as a whole by connecting horizontal bars and cooperating with soft rubber strips. The connecting arm cooperates with the U-shaped folding arm to connect the upper circuit board and the lower circuit board at the front end for folding. Furthermore, during the folding process, the fixing pin on the right side of the U-shaped folding arm is connected to the auxiliary positioning line to perform angle positioning during the folding process. Furthermore, the front end of the limit plate on the inner side of the folding arc edge is connected to the axle pin through a rubber strip, and during the folding process, it will slide up and down along the slide rail groove plate to ensure the convenience of the stacking and folding process, thereby improving the speed of the overall stacking and folding process of the double-layer circuit board and ensuring practicality.

[0022] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0023] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A double-layer stacked circuit board, characterized in that: The structure comprises an upper circuit board (1), a soft rubber strip (2), an upper frame shell (3), a flipping and folding mechanism (4), a lower circuit board (5), a lower frame shell (6), and a connecting horizontal strip (7); the outer side of the upper circuit board (1) is bonded to the inner side of the upper frame shell (3); the right end of the upper circuit board (1) is connected to the left end of the soft rubber strip (2); the inner side of the flipping and folding mechanism (4) is embedded and installed in the two ends of the soft rubber strip (2); the right end of the upper frame shell (3) is connected to the left end of the flipping and folding mechanism (4); the outer side of the lower circuit board (5) is bonded to the inner side of the lower frame shell (6); the right end of the flipping and folding mechanism (4) is connected to the left end of the lower frame shell (6); and the lower end of the lower circuit board (5) is bonded to the upper end of the connecting horizontal strip (7).

2. A double-layer stacked circuit board according to claim 1, characterized in that: The flipping and folding mechanism (4) is composed of a connecting arm (41), an axle pin (42), a folding arc edge (43), a rubber strip (44), a limiting plate (45), an auxiliary positioning line (46), a fixing pin (47), a U-shaped folding arm (48), and a slide rail groove plate (49). The lower end of the connecting arm (41) is connected to the upper end of the axle pin (42). The outer ring of the axle pin (42) and the inner side of the slide rail groove plate (49) are coaxial. The axle pin (42) is connected to the limiting plate (45) through the rubber strip (44). The inner side of the folding arc edge (43) is in contact with the outer side of the limiting plate (45). The right end of the U-shaped folding arm (48) is connected to the auxiliary positioning line (46) through the fixing pin (47). The lower end of the auxiliary positioning line (46) is connected to the upper end of the limiting plate (45).

3. A double-layer stacked circuit board according to claim 1, characterized in that: The lower end of the upper circuit board (1) is bonded to the upper end of the connecting horizontal bar (7).

4. A double-layer stacked circuit board according to claim 2, characterized in that: The upper end of the connecting arm (41) is connected to the lower end of the connecting horizontal bar (7).

5. A double-layer stacked circuit board according to claim 1, characterized in that: The left end of the lower circuit board (5) is connected to the right end of the soft rubber strip (2).

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