Rigid-flex board capable of being installed in multiple dimensions

Abstract

The utility model relates to the technical field of PCBs, and discloses a rigid-flex board capable of being installed in multiple dimensions, which comprises an installation board, a cavity is arranged in the installation board, a rotating assembly is arranged in the cavity, the rotating assembly comprises a sliding board, the sliding board is rotatably and slidably connected in the cavity, and the sliding board is connected with the installation board. A bevel gear is fixedly connected to the surface of the sliding plate, a disc is fixedly connected to the surface of the bevel gear, the disc penetrates through and is slidably connected to the surface of the mounting plate, a hard plate is fixedly connected to the surface of the disc, soft plates are fixedly connected to the two sides of the hard plate, and clamping teeth are fixedly connected to the inner wall of the cavity. And the clamping teeth are meshed with the bevel gear. According to the utility model, the hard plate is rotated downwards, so that the reset spring is in a compressed state, the bevel gear is separated from the clamping teeth, and the positions of the hard plate and the soft plate are changed along with the synchronous rotation of the disc and the bevel gear, so that the multi-dimensional mounting requirement is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PCBs, in particular to a rigid-flexible printed circuit board that can be installed in multiple dimensions. Background Art

[0002] A rigid-flexible printed circuit board is a new type of printed circuit board that combines the durability of a rigid PCB and the adaptability of a flexible PCB. It has both a certain flexible area and a certain rigid area, which is very helpful for saving the internal space of products, reducing the finished product volume, and improving product performance. Rigid-flexible boards can connect different rigid PCB boards and components three-dimensionally. Therefore, under the same line density, the total usable area of the PCB can be increased, the circuit carrying capacity can be relatively improved, and the signal transmission volume limitation and assembly error rate of the joints can be reduced. On the other hand, since rigid-flexible boards are light and thin and can be flexibly wired, it is of substantial benefit for reducing volume and weight.

[0003] After retrieval, the Chinese patent publication number: CN217037532U discloses a rigid-flexible printed circuit board that can be installed in multiple dimensions. This rigid-flexible printed circuit board is provided with a pull rope connected between the rigid boards, and the length of the pull rope is less than the length of the flexible board between them. When the flexible board is repeatedly bent, the force at the connection mainly lies at both ends of the pull rope, effectively avoiding excessive force at the connections on both sides of the flexible board and causing it to break, improving the bending performance of the flexible board to adapt to the installation situation that requires repeated bending.

[0004] The above rigid-flexible printed circuit board has certain drawbacks during use. Although multi-dimensional installation can be achieved by bending, the positions between the rigid board and the flexible board are relatively fixed, resulting in the inability to maximize the space for multi-dimensional installation. Therefore, a rigid-flexible printed circuit board that can be installed in multiple dimensions is proposed to solve the above problems. Summary of the Utility Model

[0005] To make up for the above deficiencies, the utility model provides a rigid-flexible printed circuit board that can be installed in multiple dimensions, aiming to improve the problem that the positions between the rigid board and the flexible board in the prior art are relatively fixed, resulting in the inability to maximize the space for multi-dimensional installation.

[0006] To achieve the above purpose, the utility model adopts the following technical solution: A rigid-flexible printed circuit board that can be installed in multiple dimensions includes a mounting plate. A cavity is formed inside the mounting plate. A rotating assembly is arranged inside the cavity. The rotating assembly includes a sliding plate. The sliding plate is rotatably and slidably connected inside the cavity. A bevel gear is fixedly connected to the surface of the sliding plate. A disc is fixedly connected to the surface of the bevel gear. The disc penetrates and is slidably connected to the surface of the mounting plate. A rigid board is fixedly connected to the surface of the disc. Flexible boards are fixedly connected to both sides of the rigid board.

[0007] As a further description of the above technical solution:

[0008] Multiple groups of metal wires distributed in an array are arranged inside the flexible board.

[0009] As a further description of the above technical solution:

[0010] A connection block is fixedly connected to the end of the flexible board, and a connector is hinged to the side wall of the connection block.

[0011] As a further description of the above technical solution:

[0012] The connector is shaped like a C, and the notch of the connector corresponds to the position of the connection block.

[0013] As a further description of the above technical solution:

[0014] Multiple groups of arc-shaped grooves distributed in an array are provided on both the surface and the bottom surface of the flexible board, and multiple groups of vent holes distributed in an array are provided inside the arc-shaped grooves.

[0015] As a further description of the above technical solution:

[0016] Teeth are fixedly connected to the inner wall of the cavity, and the teeth are engaged with the bevel gear.

[0017] As a further description of the above technical solution:

[0018] Multiple groups of return springs distributed in an array are provided on the bottom surface of the sliding plate, and the bottom ends of the return springs are fixedly connected to the inner wall of the cavity.

[0019] As a further description of the above technical solution:

[0020] Multiple groups of the teeth are provided, and the multiple groups of teeth are distributed in an array on the inner wall of the cavity.

[0021] As a further description of the above technical solution:

[0022] The metal wire is any one of silver wire, copper wire, gold wire, aluminum wire, tungsten wire, and nickel wire.

[0023] As a further description of the above technical solution:

[0024] Four groups of symmetrically arranged positioning holes are provided on the surface of the mounting plate.

[0025] The utility model has the following beneficial effects:

[0026] 1. In the present utility model, by pressing down and rotating the hard board, the reset spring is in a compressed state, causing the bevel gear to separate from the engaging teeth. Since the disc rotates synchronously with the bevel gear, the positions of the hard board and the soft board change accordingly, thereby meeting the multi-dimensional installation requirements.

[0027] 2. In the present utility model, arc-shaped grooves are provided on the surface and bottom of the soft board, which endows the soft board with higher bending ability and durability during bending and disperses external pressure. At the same time, the ventilation holes inside the arc-shaped grooves contribute to dissipating the heat generated during operation, ensuring the stable performance of the soft board during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 FIG. is a schematic diagram of the overall structure of a flexible-rigid combined board with multi-dimensional installation proposed by the present utility model;

[0029] Figure 2 FIG. is a schematic diagram of the rotating assembly structure of a flexible-rigid combined board with multi-dimensional installation proposed by the present utility model;

[0030] Figure 3 FIG. is a schematic diagram of the soft board structure of a flexible-rigid combined board with multi-dimensional installation proposed by the present utility model;

[0031] Figure 4 FIG. is a schematic diagram of the enlarged structure at A of a flexible-rigid combined board with multi-dimensional installation proposed by the present utility model.

[0032] LEGEND DESCRIPTION:

[0033] 1. Mounting plate; 11. Positioning hole; 2. Cavity; 3. Engaging teeth; 4. Rotating assembly; 41. Slide plate; 42. Bevel gear; 43. Reset spring; 44. Disc; 5. Hard board; 6. Soft board; 61. Metal wire; 62. Arc-shaped groove; 63. Ventilation hole; 64. Connecting block; 65. Connector. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0035] Refer to Figure 1 - Figure 2, an embodiment provided by the present utility model: a flexible-rigid printed circuit board that can be installed in multiple dimensions, including a mounting plate 1. Four groups of symmetrically arranged positioning holes 11 are provided on the surface of the mounting plate 1. The four groups of positioning holes 11 are used for screws to pass through to fix the mounting plate 1. A cavity 2 is provided inside the mounting plate 1. The cavity 2 is a cavity located inside the mounting plate 1 and is used to accommodate a rotating component 4 and a gear tooth 3. The inner wall of the cavity 2 is fixedly connected with the gear tooth 3. There are multiple groups of the gear tooth 3, and the multiple groups of gear teeth 3 are arranged in an array on the inner wall of the cavity 2. The multiple groups of gear teeth 3 arranged in an array are used to mesh with a bevel gear 42 to achieve the fixing effect of the rotating component 4.

[0036] Refer to Figure 2 , a rotating component 4 is provided inside the cavity 2. The rotating component 4 includes a sliding plate 41. The sliding plate 41 is rotationally and slidably connected inside the cavity 2. The rotational and sliding movements of the sliding plate 41 allow the rotating component 4 to move in multiple directions inside the cavity 2, providing a flexible adjustment ability for the overall structure. A bevel gear 42 is fixedly connected to the surface of the sliding plate 41. The gear tooth 3 meshes with the bevel gear 42. The bevel gear 42 is used to mesh with the gear tooth 3, so that when the bevel gear 42 meshes with the gear tooth 3, it cannot rotate. Multiple groups of reset springs 43 are arranged in an array on the bottom surface of the sliding plate 41. The bottom ends of the reset springs 43 are fixedly connected to the inner wall of the cavity 2. The top ends of the reset springs 43 are in contact with the bottom surface of the sliding plate 41, providing sufficient elastic support for the sliding plate 41 to move the sliding plate 41 upward, thus ensuring the meshing relationship between the bevel gear 42 and the gear tooth 3. When the bevel gear 42 is under pressure, it moves downward, and the reset springs 43 are in a compressed state. The bevel gear 42 is separated from the gear tooth 3, so that the bevel gear 42 can rotate. A disc 44 is fixedly connected to the surface of the bevel gear 42. The disc 44 penetrates and is slidably connected to the surface of the mounting plate 1. The disc 44 is used to connect a rigid board 5 and the bevel gear 42, so that the two rotate and move synchronously. A rigid board 5 is fixedly connected to the surface of the disc 44. Soft boards 6 are fixedly connected to both sides of the rigid board 5. When the bevel gear 42 is separated from the gear tooth 3, the positions of the rigid board 5 and the soft boards 6 can be rotated, thereby increasing the multi-dimensional installation space of the rigid board 5 and the soft boards 6.

[0037] Refer to Figure 3 - Figure 4, inside the flexible board 6, there are multiple groups of metal wires 61 distributed in an array. The metal wire 61 can be any one of silver wire, copper wire, gold wire, aluminum wire, tungsten wire, and nickel wire. The specific selection of the metal wire 61 depends on the required electrical conductivity, strength, and cost. The metal wire 61 provides electrical connection and conductivity inside the flexible board 6, ensuring the reliability of the flexible board 6 in electrical transmission and signal conduction. On the surface and bottom surface of the flexible board 6, there are multiple groups of arc-shaped grooves 62 distributed in an array. The arc-shaped grooves 62 can, to a certain extent, improve the bending ability and durability of the flexible board 6 and disperse external pressure. Inside the arc-shaped grooves 62, there are multiple groups of vent holes 63 distributed in an array. The vent holes 63 help dissipate the heat generated during the operation of the flexible board 6, prevent overheating from damaging the metal wire 61 and the overall flexible board 6, and ensure the stable performance of the flexible board 6 during long-term use. At the end of the flexible board 6, there is a fixed connection. On the side wall of the connection block 64, there is a hinged joint 65. The connection block 64 is responsible for providing mechanical connection during the installation and operation of the flexible board 6, ensuring stability and reliability. The shape of the joint 65 is set as a C shape, and the notch of the joint 65 corresponds to the position of the connection block 64. The hinging of the joint 65 allows for a certain angle adjustment between the connection blocks 64, thus adapting to different installation requirements and movement ranges.

[0038] Working principle: When installing the rigid-flex board, first fix the installation board 1 at a predetermined position and use screws to fix it through the four positioning holes 11. The bevel gear 42 is in a meshed state with the gear teeth 3. Due to the action of the return spring 43, the sliding plate 41 remains in the initial position, ensuring the stable meshing of the bevel gear 42 and the gear teeth 3. When adjusting the positions of the rigid board 5 and the flexible board 6, by rotating the rigid board 5 downward, the return spring 43 is in a compressed state, and the bevel gear 42 is separated from the gear teeth 3. Since the disc 44 rotates synchronously with the bevel gear 42, the positions of the rigid board 5 and the flexible board 6 change accordingly, thereby meeting multi-dimensional installation requirements.

[0039] When electrical connection is required, the metal wire 61 provides reliable electrical connection and conductivity inside the flexible board 6. Since the arc-shaped grooves 62 are provided on the surface and bottom surface of the flexible board 6, the flexible board 6 has higher bending ability and durability when being bent and can disperse external pressure. At the same time, the vent holes 63 inside the arc-shaped grooves 62 help dissipate the heat generated during the operation, ensuring the stable performance of the flexible board 6 during long-term use.

[0040] With the cooperation of the connection block 64 and the joint 65, the rigid-flex board can achieve reliable connection with external devices. The connection block 64 ensures the stability of the overall structure through mechanical connection, while the C-shaped design of the joint 65 allows for a certain angle adjustment between the connection blocks 64, thus adapting to different installation requirements and movement ranges.

[0041] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A flexible and rigid printed circuit board that can be installed in multiple dimensions, comprising a mounting board (1), characterized in that: A cavity (2) is formed inside the mounting plate (1). A rotating assembly (4) is arranged inside the cavity (2). The rotating assembly (4) includes a sliding plate (41). The sliding plate (41) is rotatably and slidably connected inside the cavity (2). A bevel gear (42) is fixedly connected to the surface of the sliding plate (41). A disc (44) is fixedly connected to the surface of the bevel gear (42). The disc (44) penetrates and is slidably connected to the surface of the mounting plate (1). A rigid plate (5) is fixedly connected to the surface of the disc (44). Soft plates (6) are fixedly connected to both sides of the rigid plate (5).

2. The multi-dimensionally mountable flexible-rigid printed circuit board according to claim 1, wherein: Multiple groups of metal wires (61) distributed in an array are arranged inside the soft plate (6).

3. The flexible and rigid printed circuit board capable of multi-dimensional installation according to claim 1, wherein: A connecting block (64) is fixedly connected to the end of the soft plate (6). A joint (65) is hinged to the side wall of the connecting block (64).

4. The flexible and rigid combined board capable of multi-dimensional installation according to claim 3, wherein: The joint (65) is C-shaped. The notch of the joint (65) corresponds to the position of the connecting block (64).

5. A flexible-rigid printed circuit board capable of multi-dimensional installation according to claim 1, characterized in that: Multiple groups of arc-shaped grooves (62) distributed in an array are formed on both the surface and the bottom surface of the soft plate (6). Multiple groups of vent holes (63) distributed in an array are formed inside the arc-shaped grooves (62).

6. The flexible and rigid printed circuit board capable of multi-dimensional installation according to claim 1, characterized in that: A toothed rack (3) is fixedly connected to the inner wall of the cavity (2). The toothed rack (3) meshes with the bevel gear (42).

7. A flexible and rigid printed circuit board that can be installed in multiple dimensions according to claim 1, characterized in that: Multiple groups of return springs (43) distributed in an array are arranged on the bottom surface of the sliding plate (41). The bottom ends of the return springs (43) are fixedly connected to the inner wall of the cavity (2).

8. The multi-dimensionally mountable flexible-rigid printed circuit board according to claim 6, wherein: Multiple groups of the toothed racks (3) are provided, and the multiple groups of toothed racks (3) are distributed in an array on the inner wall of the cavity (2).

9. The flexible-rigid printed circuit board capable of multi-dimensional installation according to claim 2, wherein: The metal wire (61) is any one of silver wire, copper wire, gold wire, aluminum wire, tungsten wire, and nickel wire.

10. A flexible-rigid printed circuit board capable of multi-dimensional installation according to claim 1, characterized in that: Four groups of symmetrically arranged positioning holes (11) are formed on the surface of the mounting plate (1).

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