Double-sided circuit board convenient to fold

Abstract

The utility model relates to the field of double-sided circuit boards, and discloses a double-sided circuit board convenient to fold. According to the device, turnover supporting rods are fixedly connected to the outer surfaces of the two sides of the supporting frame, supporting plates are movably connected to the inner surfaces of the two sides of the turnover supporting rods, deformation reset hinges are arranged on the inner surfaces of the supporting plates, and fixing frames are fixedly connected to the outer surfaces of the deformation reset hinges; an elastic piece is arranged on the inner surface, corresponding to the deformation reset hinge, of the supporting plate, a stress piece is fixedly connected to the outer surface, corresponding to the elastic piece, of the supporting plate, a bidirectional spherical connecting rod is movably clamped to the inner surface of the fixing frame, elastic deformation is completed by pressing the stress piece and the elastic piece, and the fixing frame expands towards the outer end and the outer side under the action of the deformation reset hinge. The two-way spherical connecting rod is pressed after being inserted, the fixing frame is contracted inwards through reverse deformation of the elastic piece, fixing is completed, the fixing frame is provided with the movable groove, corresponding movement of the two-way spherical connecting rod is facilitated, and then single supporting frames are conveniently connected.

Description

Technical Field

[0001] This application belongs to the field of double-sided circuit board technology, specifically a double-sided circuit board that is easy to fold. Background Art

[0002] A double-sided circuit board (BPCB) is a printed circuit board that allows wiring on both sides and is widely used in electronic devices. Compared to single-sided circuit boards, BPCBs offer higher circuit density and more complex circuit designs, making them suitable for applications requiring more connections and functions. They offer greater integration and space utilization, typically achieved by using conductive copper layers on both sides and connecting them via vias to transmit signals and power.

[0003] For example, application CN204948512U discloses a flexible double-sided circuit board that is easy to disassemble and assemble. The circuit board includes a circuit board with fixing plates at both ends. The circuit board has through holes, and a connector is fixedly connected to the left end of the circuit board, extending through and to the outside of the fixing plates. The other end of the circuit board has a socket that penetrates the fixing plates. A substrate is located inside the circuit board, in the middle of the circuit board. This flexible double-sided circuit board, with its connector and socket, facilitates disassembly and assembly, allowing multiple circuit boards to be assembled together, greatly improving the utilization rate of the circuit board. By having two wiring layers, it achieves double-sided wiring, saving space, reducing volume, and increasing utilization. This invention has a simple structure and is easy to use.

[0004] However, the corresponding circuit board in this application cannot be expanded, limiting its compatibility in the current development of complex system circuits. Utility Model Content

[0005] The purpose of this application is to provide a double-sided circuit board that is easy to fold, in order to solve the problem that the circuit board mentioned above cannot be expanded and has limited compatibility in the current development of complex system circuits.

[0006] The technical solution adopted in this application is as follows: a foldable double-sided circuit board includes a support frame, a folding support rod is fixedly connected to the outer surfaces of both sides of the support frame, a support plate is movably connected to the inner surfaces of both sides of the folding support rod, a deformation reset hinge is provided on the inner surface of the support plate, a fixing frame is fixedly connected to the outer surface of the deformation reset hinge, a spring piece is provided on the inner surface of the support plate corresponding to the deformation reset hinge, a force-bearing piece is fixedly connected to the outer surface of the support plate corresponding to the spring piece, and a bidirectional spherical connecting rod is movably engaged on the inner surface of the fixing frame.

[0007] By adopting the above technical solution, during use, pressing the force-bearing piece causes the spring to undergo elastic deformation. Under the action of the deformation-reset hinge, the fixed frame expands outward. After the bidirectional spherical connecting rod is inserted and pressed, the spring undergoes reverse deformation, causing the fixed frame to retract inward and complete the fixation. The fixed frame is equipped with a movable groove to facilitate the corresponding movement of the bidirectional spherical connecting rod, thereby facilitating the connection between individual support frames. After connecting a single bidirectional spherical connecting rod, rotation is possible. Through the connection on the corresponding side, folding and flipping are convenient.

[0008] In a preferred embodiment, a side support plate is welded to the outer surface of the support plate corresponding to the folding support rod, and a screw is movably connected to the outer surface of the side support plate.

[0009] By adopting the above technical solution, the side support plate extends when it needs to be fixed and retracts into the folding support rod when it is not needed, keeping the equipment tidy. The screws are fixed in the corresponding folding support rod's built-in threaded groove by inserting into the groove and fixing hole of the side support plate.

[0010] In a preferred embodiment, a fixing plate is provided on the outer surface of the screw corresponding to the folding support rod, and a fixing hole is provided on the outer surface of the fixing plate.

[0011] By adopting the above technical solution, the fixing plate is a support plate that can be easily fixed inside the folding support rod.

[0012] In a preferred embodiment, the outer surface of the folding support rod is provided with an opening groove, and a double-sided circuit board is fixedly connected to the inner surface of the support frame.

[0013] By adopting the above technical solution, the opening groove is designed to facilitate the insertion of objects of similar length as needles, so that the force-bearing plate at that location can be stressed, making it easier to open the corresponding fixing frame, and the double-sided circuit board.

[0014] In a preferred embodiment, a first extension strip is fixedly connected to the middle outer surface of one side of the folding support rod, and a socket groove is provided on the side surface of the first extension strip.

[0015] By adopting the above technical solution, the first extension strip can be easily fixed and extended on the side by installing support plates on the upper and lower sides, while the bidirectional spherical connecting rod is fixed on the upper and lower sides, and the connection can be made by flipping on the side. The socket slot facilitates the installation of the socket end.

[0016] In a preferred embodiment, a second extension bar is fixedly connected to the outer surface of the folding support rod, and a plug groove is provided on the outer surface of the second extension bar.

[0017] By adopting the above technical solution, the socket slot can be easily fixed and expanded on the side by installing support plates on the upper and lower sides, and the second expansion strip can facilitate the installation of the plug end connected to the corresponding socket slot.

[0018] In a preferred embodiment, a reinforcing strip is fixedly connected to the upper surface of the folding support rod, and a protective strip is fixedly connected to the upper surface of the folding support rod next to the reinforcing strip.

[0019] By adopting the above technical solution, the protective strip provides protection on the flipped side, and the reinforcing strip provides protection while using hard plastic to increase the support rigidity of the side.

[0020] In a preferred embodiment, the support plate is made of hard plastic, and the outer surface of the spring is coated with an antistatic coating.

[0021] By adopting the above technical solution, the hard plastic is insulated from the circuit board to ensure stable operation. The spring, as a component that needs to be displaced, avoids the risk of short circuit caused by static electricity or electronic displacement due to friction.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0023] In this application, during use, pressing the force-bearing piece causes the spring to undergo elastic deformation. The fixed frame expands outward under the action of the deformation-reset hinge. After the bidirectional spherical connecting rod is inserted and pressed, the spring undergoes reverse deformation, causing the fixed frame to retract inward and complete the fixation. The fixed frame is provided with a movable groove to facilitate the corresponding movement of the bidirectional spherical connecting rod, thereby facilitating the connection between individual support frames. After connecting a single bidirectional spherical connecting rod, rotation is possible. The connection on the corresponding side facilitates folding, flipping, etc. Attached Figure Description

[0024] Figure 1 This is a front view of the device board in this application;

[0025] Figure 2 This is a reverse view of the equipment board in this application;

[0026] Figure 3 This is a schematic diagram of the equipment fixing structure in this application;

[0027] Figure 4 This is a schematic diagram illustrating the effect of device expansion connection in this application;

[0028] Figure 5 This is a schematic diagram illustrating the device flipping effect in this application;

[0029] Figure 6 This is a schematic diagram illustrating the folding effect of the equipment in this application.

[0030] The markings in the diagram are: 1. Support frame; 2. Folding support rod; 3. Support plate; 4. Deformation and reset hinge; 5. Fixing frame; 6. Spring piece; 7. Force-bearing piece; 8. Two-way ball joint connecting rod; 9. Side support piece; 10. Screw; 11. Fixing plate; 12. Opening slot; 13. Double-sided circuit board; 14. First extension strip; 15. Socket slot; 16. Second extension strip; 17. Plug slot; 18. Reinforcing strip; 19. Protective strip; 20. Fixing hole. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Example:

[0033] Reference Figure 1-6 A convenient foldable double-sided circuit board includes a support frame 1. Folding support rods 2 are fixedly connected to the outer surfaces of both sides of the support frame 1. Support plates 3 are movably connected to the inner surfaces of both sides of the folding support rods 2. Deformation reset hinges 4 are provided on the inner surface of the support plates 3. A fixing frame 5 is fixedly connected to the outer surface of the deformation reset hinges 4. A spring piece 6 is provided on the inner surface of the support plates 3 corresponding to the deformation reset hinges 4. A force-bearing piece 7 is fixedly connected to the outer surface of the support plates 3 corresponding to the spring piece 6. A bidirectional spherical connecting rod 8 is movably engaged on the inner surface of the fixing frame 5.

[0034] In use, pressing the force-bearing piece 7 causes the spring piece 6 to undergo elastic deformation. Under the action of the deformation-reset hinge 4, the fixed frame 5 expands outward. After the bidirectional spherical connecting rod 8 is inserted and pressed, the spring piece 6 deforms in the opposite direction, causing the fixed frame 5 to retract inward and complete the fixation. The fixed frame 5 is provided with a movable groove to facilitate the corresponding movement of the bidirectional spherical connecting rod 8, thus facilitating the connection between individual support frames 1. After connecting a single bidirectional spherical connecting rod 8, rotation can be performed. Through the connection on the corresponding side, folding and flipping are convenient.

[0035] Reference Figure 1-6 The outer surface of the support plate 3 corresponding to the folding support rod 2 is welded with a side support piece 9, and the outer surface of the side support piece 9 is movably connected with a screw 10.

[0036] When fixed, the side support plate 9 extends out; when not fixed, the side support plate 9 retracts into the folding support rod 2 to maintain the neatness of the equipment. The screw 10 is fixed in the corresponding threaded groove of the folding support rod 2 by inserting into the groove of the side support plate 9 and the fixing hole 20.

[0037] Reference Figure 1-6 The outer surface of the folding support rod 2 corresponding to the screw 10 is provided with a fixing plate 11, and the outer surface of the fixing plate 11 is provided with fixing holes 20.

[0038] The fixing plate 11 serves as a support plate 3, which is inserted into the folding support rod 2 for easy fixation.

[0039] Reference Figure 1-6 The outer surface of the folding support rod 2 is provided with an opening groove 12, and a double-sided circuit board 13 is fixedly connected to the inner surface of the support frame 1.

[0040] The opening slot 12 is for inserting objects of the same length as needles to apply force to the force-bearing plate 7 at that location, making it easier to open the corresponding fixing frame 5, and double-sided circuit board 13.

[0041] Reference Figure 1-6 A first extension bar 14 is fixedly connected to the outer surface of the middle of one side of the folding support rod 2, and a socket groove 15 is provided on the side surface of the first extension bar 14.

[0042] The first extension bar 14 is conveniently fixed and extended on the side by mounting support plates 3 on the upper and lower sides. The bidirectional ball connecting rod 8 is fixed on the upper and lower single side, and the connection is made by flipping on the side. The socket groove 15 facilitates the installation of the socket end for connection.

[0043] Reference Figure 1-6 The folding support rod 2 is fixedly connected to the outer surface of the second extension bar 16, and the outer surface of the second extension bar 16 is provided with a plug groove 17.

[0044] The socket slot 15 is conveniently fixed and extended on this side by mounting support plates 3 on the upper and lower sides, and the second extension strip 16 facilitates the installation of the plug end connected to the socket slot 15.

[0045] Reference Figure 1-6 A reinforcing strip 18 is fixedly connected to the upper surface of the folding support rod 2, and a protective strip 19 is fixedly connected to the upper surface of the folding support rod 2 next to the reinforcing strip 18.

[0046] Protective strip 19 provides protection on the flipped side, while reinforcing strip 18 provides protection and is made of rigid plastic to increase the support rigidity of the side.

[0047] Reference Figure 1-6 The support plate 3 is made of hard plastic, and the outer surface of the spring piece 6 is coated with an anti-static coating.

[0048] The hard plastic is used to insulate the circuit board connection lines, thereby ensuring stable operation. The spring 6 is a component that needs to be displaced, so it is necessary to avoid the risk of short circuit caused by static electricity or electronic displacement due to friction.

[0049] The implementation principle of this application's embodiment of a conveniently foldable double-sided circuit board is as follows:

[0050] This circuit board has a connection structure. The internal hot stamping and wiring of the circuit board will have different designs depending on the different circuit functions, which are not covered in this application. In use, by pressing the force-bearing piece 7, the spring piece 6 completes the elastic deformation. The fixing frame 5 expands outward under the action of the deformation reset hinge 4. After the bidirectional ball connecting rod 8 is inserted and pressed, the fixing frame 5 is retracted inward by the reverse deformation of the spring piece 6 to complete the fixation. The fixing frame 5 is provided with a movable groove to facilitate the corresponding movement of the bidirectional ball connecting rod 8, and thus facilitates the connection between individual support frames 1. After a single bidirectional ball connecting rod 8 is connected, it can be rotated, etc. By connecting the corresponding side, it is convenient to fold, flip, etc. When expansion is required, the bidirectional ball connecting rod 8 on both the front and rear sides is inserted through the insertion of the first expansion strip 14 and the second expansion strip 16 to complete the fixation. The socket slot 15 and the plug slot 17 are provided with space to facilitate the installation between circuit connectors and to facilitate the connection of the expanded circuit boards into a whole.

[0051] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A foldable double-sided circuit board, comprising a support frame (1), characterized in that: The outer surfaces of both sides of the support frame (1) are fixedly connected with folding support rods (2), and the inner surfaces of both sides of the folding support rods (2) are movably connected with support plates (3). The inner surface of the support plate (3) is provided with deformation reset hinges (4), and the outer surface of the deformation reset hinges (4) is fixedly connected with a fixed frame (5). The inner surface of the support plate (3) is provided with spring pieces (6) corresponding to the inner surface of the deformation reset hinges (4), and the outer surface of the support plate (3) is fixedly connected with force-bearing pieces (7). The inner surface of the fixed frame (5) is movably engaged with a bidirectional spherical connecting rod (8).

2. The foldable double-sided circuit board as described in claim 1, characterized in that: The support plate (3) has a side support piece (9) welded to the outer surface of the corresponding folding support rod (2), and the outer surface of the side support piece (9) is movably connected with a screw (10).

3. A foldable double-sided circuit board as described in claim 1, characterized in that: The folding support rod (2) has a fixing plate (11) on the outer surface of the screw (10), and the fixing plate (11) has a fixing hole (20) on the outer surface.

4. A foldable double-sided circuit board as described in claim 1, characterized in that: The outer surface of the folding support rod (2) is provided with an opening groove (12), and the inner surface of the support frame (1) is fixedly connected with a double-sided circuit board (13).

5. A foldable double-sided circuit board as described in claim 1, characterized in that: The first extension bar (14) is fixedly connected to the outer surface of the middle side of the folding support rod (2), and a socket groove (15) is provided on the side surface of the first extension bar (14).

6. A foldable double-sided circuit board as described in claim 1, characterized in that: The folding support rod (2) is fixedly connected to a second extension strip (16) on its outer surface, and the outer surface of the second extension strip (16) is provided with a plug groove (17).

7. A foldable double-sided circuit board as described in claim 1, characterized in that: A reinforcing strip (18) is fixedly connected to the upper surface of the folding support rod (2), and a protective strip (19) is fixedly connected to the upper surface of the folding support rod (2) next to the reinforcing strip (18).

8. A foldable double-sided circuit board as described in claim 1, characterized in that: The support plate (3) is made of hard plastic, and the outer surface of the spring sheet (6) is coated with an antistatic coating.

Images