Foldable circuit board for a lamp

Abstract

The utility model relates to circuit board technical field discloses a kind of foldable circuit board for lamp, including electric board one and electric board two and electric board three and electric board four, the outside of electric board one is rotatably connected with side shaft one, the inside of side shaft one is rotatably connected with multiple rotating arms one, one end of rotating arm one is rotatably connected with rotating arm two, one end of rotating arm two is rotatably connected with receiving plate, the inside of receiving plate is rotatably connected with rotating arm three.In the utility model, side shaft one and side shaft two are as key fulcrum, provide stable support for rotating arm.Rotating arm is connected by hinged point and constitutes linkage system, when starting folding, rotating arm angle changes and rotates around hinged point, passes through receiving plate transmission coordination, drives electric board two, three, four around hinge and connecting point rotation, close to electric board one, reduce the angle between board and complete folding, ensure structure stability, provide convenience for lamp storage and transportation.

Description

Technical Field

[0001] This utility model relates to the field of circuit board technology, and in particular to a foldable circuit board for lighting fixtures. Background Technology

[0002] A circuit board provides an electrical connection path for electronic components. It connects various electronic components, such as resistors, capacitors, chips, and diodes, through printed conductive lines (copper foil, etc.), allowing current to flow along the designed path, thereby enabling various functions of electronic devices.

[0003] Most circuit boards used in lighting fixtures on the market are of fixed size, which cannot be flexibly adjusted when the area to be used needs to be expanded, and they also take up a lot of space when stored. The fixed connection method of traditional circuit boards makes it difficult to adapt to the installation requirements of different specifications of lighting fixtures. During transportation, they are easily damaged by bumps and knocks due to their rigid structure. At the same time, their heat dissipation performance is limited by the fixed layout, making it difficult to meet the heat dissipation requirements of high-power lighting fixtures. Therefore, a foldable circuit board for lighting fixtures is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a foldable circuit board for lighting fixtures, aiming to improve the problem that the fixed size of the circuit board in the prior art is difficult to fold.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A foldable lighting circuit board includes a first circuit board, a second circuit board, a third circuit board, and a fourth circuit board. The first circuit board is rotatably connected to an external side shaft. The side shaft is rotatably connected to a plurality of rotating arms. One end of each rotating arm is rotatably connected to a second rotating arm. One end of each second rotating arm is rotatably connected to a receiving plate. The receiving plate is rotatably connected to a third rotating arm. One end of each third rotating arm is rotatably connected to a fourth rotating arm. One end of each fourth rotating arm is rotatably connected to the same side shaft. The first circuit board is fixedly connected to a plurality of hinges. Both ends of the first circuit board are fixedly connected to material components for folding the circuit.

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

[0008] The material component includes multiple epoxy glass fibers, which are externally fixedly connected to both ends of the first electrical board. One end of one of the epoxy glass fibers is fixedly connected to a metal substrate, one end of the metal substrate is connected to a ceramic substrate, and one end of the ceramic substrate is connected to polytetrafluoroethylene.

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

[0010] The first, second, third, and fourth electrical plates are made of the same material, and the external of the plurality of supporting plates is rotatably connected to the interior of the second electrical plate;

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

[0012] The external of the plurality of receiving plates is rotatably connected to the interior of the third electrical plate, and the external of the plurality of hinges is fixedly connected to the exterior of the second electrical plate;

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

[0014] The external parts of the plurality of hinges are fixedly connected to the outside of the third electrical board, and the external parts of the plurality of hinges are fixedly connected to the outside of the fourth electrical board;

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

[0016] The epoxy glass fiber serves as a dielectric layer, and the metal substrate serves as a heat dissipation layer.

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

[0018] The ceramic substrate serves as an insulating layer, and the polytetrafluoroethylene serves as a radiation-resistant layer.

[0019] This utility model has the following beneficial effects:

[0020] In this invention, side shaft one and side shaft two serve as key fulcrums, providing stable support for the rotating arm. The rotating arm is connected by hinge points to form a linkage system. When folding is initiated, the angle of the rotating arm changes and it rotates around the hinge point. Through the transmission and coordination via the receiving plate, it drives the second, third, and fourth electrical plates to rotate around the hinge and connection point, moving them closer to the first electrical plate. This reduces the angle between the plates, completing the folding and ensuring structural stability, thus facilitating the storage and transportation of the lamps.

[0021] 2. In this invention, epoxy glass fiber serves as the dielectric layer, ensuring insulation, dielectric properties, and flexibility; the metal substrate dissipates heat, preventing heat generated during folding from affecting the circuit; the ceramic substrate provides insulation, avoiding short circuits; and polytetrafluoroethylene (PTFE) is radiation-resistant and interference-resistant. These materials form a layered structure, enabling the circuit board to resist deformation and breakage when folded, while maintaining electrical performance, ensuring normal operation after folding and improving practicality and reliability. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of a foldable circuit board for a lighting fixture proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the second side shaft of a foldable circuit board for a lamp proposed in this utility model;

[0024] Figure 3 This is a schematic diagram of the side shaft of a foldable circuit board for a lamp proposed in this utility model.

[0025] Figure 4 This is a schematic diagram of the circuit board of a foldable lighting fixture according to the present invention.

[0026] Legend:

[0027] 1. Circuit board one; 2. Circuit board two; 3. Circuit board three; 4. Circuit board four; 5. Side shaft one; 6. Rotating arm one; 7. Rotating arm two; 8. Support plate; 9. Rotating arm three; 10. Rotating arm four; 11. Side shaft two; 12. Hinge; 13. Epoxy fiberglass; 14. Metal substrate; 15. Ceramic substrate; 16. Polytetrafluoroethylene. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figures 1 to 3 This utility model provides an embodiment of a foldable lighting circuit board, including circuit board 1, circuit board 2, circuit board 3, and circuit board 4. These circuit boards are designed as the main body of the circuit board, carrying electronic components. Circuit boards 1, 2, 3, and 4 are made of the same material. Circuit board 1 is externally rotatably connected to a side shaft 5, which serves as the rotation axis of the folding mechanism. Multiple rotating arms 6 are internally rotatably connected to the side shaft 5, serving as a linkage mechanism. One end of each rotating arm 6 is rotatably connected to a rotating arm 7, which is used to adjust the angle during folding. One end of each rotating arm 7 is rotatably connected to a receiving plate 8, which serves as a connecting hub to share mechanical stress. The external parts of multiple receiving plates 8 are rotatably connected to the interior of circuit board 2, and the external parts of multiple receiving plates 8 are rotatably connected to the interior of circuit board 3.

[0030] The receiving plate 8 has a rotating arm 3 9 internally connected to it. This rotating arm 3 9 is designed as a reverse symmetrical design. One end of the rotating arm 3 9 is rotatably connected to a rotating arm 4 10. This rotating arm 4 10 is designed to ensure smooth and synchronous folding / unfolding. One end of multiple rotating arms 4 10 is rotatably connected to the same side shaft 2 11. This side shaft 2 11 is designed as the rotation axis of the folding mechanism. Multiple hinges 12 are fixedly connected to the outside of the circuit board 1. This hinge is designed as the rotation axis of the folding mechanism to provide additional rotation fulcrums. Multiple hinges 12 are fixedly connected to the outside of the circuit board 2, the outside of the circuit board 3, and the outside of the circuit board 4. Material components for the folding circuit are fixedly connected to both ends of the circuit board 1.

[0031] Reference Figure 1 , Figure 4 The material components include multiple epoxy glass fibers 13. The epoxy glass fibers 13 are designed to serve as dielectrics and act as dielectric layers. The multiple epoxy glass fibers 13 are externally fixedly connected to both ends of the circuit board 1. One end of one of the epoxy glass fibers 13 is fixedly connected to a metal substrate 14. The metal substrate 14 is designed to serve as a heat dissipation layer.

[0032] One end of the metal substrate 14 is connected to a ceramic substrate 15. The ceramic substrate 15 is designed here to serve as an insulating layer. One end of the ceramic substrate 15 is connected to a polytetrafluoroethylene (PTFE) 16. The PTFE 16 is designed here to serve as a radiation-resistant layer.

[0033] Working Principle: When the circuit board needs to be folded, side shaft 5 and side shaft 11 serve as key fulcrums for the entire folding structure, providing stable support for rotating arms 6, 7, 9, and 10. These rotating arms are interconnected through hinge points, forming a flexible mechanical linkage system. When the folding operation is initiated, the angles of rotating arms 6, 7, 9, and 10 change, and they rotate around the hinge points. This rotation is transmitted and coordinated through the receiving plate 8. Driven by the rotating arms, the position and angle of the receiving plate 8 are adjusted accordingly, thereby pushing circuit boards 2, 3, and 4 to rotate around hinge 12 and the connection points between the receiving plate 8 and each circuit board. During this process, circuit boards 2, 3, and 4 gradually move closer to circuit board 1, and the angle between each circuit board continuously decreases, ultimately completing the folding. This design ensures structural stability and coordination during circuit board folding, guaranteeing smooth folding, and also provides convenience for lamp storage and transportation, effectively saving space and protecting the circuit structure.

[0034] Epoxy glass fiber 13, serving as the dielectric layer, not only imparts flexibility to the circuit board but also ensures stable insulation and dielectric properties, making it less prone to breakage during folding and guaranteeing normal signal transmission. The metal substrate 14, acting as a heat dissipation layer, effectively conducts heat generated during folding, preventing localized overheating from affecting circuit performance. The ceramic substrate 15 possesses excellent insulation properties, avoiding the risk of short circuits between circuits and ensuring electrical safety. Polytetrafluoroethylene 16, as a radiation-resistant layer, resists external radiation interference, protecting the stability of circuit functions. This layered structure, composed of these materials, can withstand deformation stress without cracking when the circuit board is folded, while maintaining stable electrical performance, allowing the circuit board to continue operating normally after folding, thus improving overall practicality and reliability.

[0035] Finally, it should be noted that the above are merely 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 described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 foldable circuit board for lighting fixtures, comprising circuit board one (1), circuit board two (2), circuit board three (3), and circuit board four (4), characterized in that: The outer side of the circuit board (1) is rotatably connected to a side shaft (5), and the inner side shaft (5) is rotatably connected to multiple rotating arms (6). One end of the rotating arm (6) is rotatably connected to a rotating arm (7), and one end of the rotating arm (7) is rotatably connected to a receiving plate (8). The inner side of the receiving plate (8) is rotatably connected to a rotating arm (9), and one end of the rotating arm (9) is rotatably connected to a rotating arm (4) (10). One end of multiple rotating arms (4) (10) is rotatably connected to the same side shaft (11). The outer side of the circuit board (1) is fixedly connected to multiple hinges (12), and both ends of the circuit board (1) are fixedly connected to material components for folding circuits.

2. The circuit board for a foldable lighting fixture according to claim 1, characterized in that: The material component includes a plurality of epoxy glass fibers (13), the plurality of epoxy glass fibers (13) being externally fixedly connected to both ends of the first electrical board (1), one end of one of the epoxy glass fibers (13) being fixedly connected to a metal substrate (14), one end of the metal substrate (14) being connected to a ceramic substrate (15), and one end of the ceramic substrate (15) being connected to polytetrafluoroethylene (16).

3. The circuit board for a foldable lighting fixture according to claim 1, characterized in that: The first electric plate (1), the second electric plate (2), the third electric plate (3), and the fourth electric plate (4) are made of the same material, and the external of the multiple receiving plates (8) are rotatably connected to the inside of the second electric plate (2).

4. The circuit board for a foldable lighting fixture according to claim 1, characterized in that: The external of the plurality of the receiving plates (8) is rotatably connected to the interior of the third electric plate (3), and the external of the plurality of the hinges (12) is fixedly connected to the exterior of the second electric plate (2).

5. The circuit board for a foldable lighting fixture according to claim 1, characterized in that: The external of the plurality of hinges (12) is fixedly connected to the outside of the third electrical board (3), and the external of the plurality of hinges (12) is fixedly connected to the outside of the fourth electrical board (4).

6. The circuit board for a foldable lighting fixture according to claim 2, characterized in that: The epoxy glass fiber (13) serves as a dielectric layer, and the metal substrate (14) serves as a heat dissipation layer.

7. A foldable circuit board for a lighting fixture according to claim 2, characterized in that: The ceramic substrate (15) serves as an insulating layer, and the polytetrafluoroethylene (16) serves as a radiation-resistant layer.

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