Folding display screen with wireless power supply module

Abstract

The utility model relates to the technical field of folding display screen, and disclose a kind of folding display screen with wireless power module, including the base of folding screen body connection in the bottom of folding screen body, the back of folding screen body is fixedly connected with electric control box, battery for being connected in electric control box for the power supply of folding screen body, the outer wall of electric control box is connected with cover plate, the outer wall of cover plate is fixedly connected with outer frame, the outer wall in cover plate is fixedly connected with the receiving coil electrically connected with battery, the utility model is provided with battery, receiving coil, transmitting coil and plug structure, the charging of folding screen body no longer depends on traditional jack.Battery can provide power for equipment itself;When needing to charge, just push the electric plate, make transmitting coil contact with receiving coil, and connect plug to mains, power supply to battery can be realized, reduce exposed electrical interface, reduce the risk such as short circuit, leakage, make maintenance convenient.

Description

Technical Field

[0001] This utility model relates to the field of foldable display technology, specifically a foldable display with a wireless power supply module. Background Technology

[0002] Foldable displays are display devices that achieve physical folding based on flexible display technology. Examples include OLED (Organic Light Emitting Diode), LCD (Liquid Crystal Display), and LED foldable screens. Among them, LED foldable screens are based on SMD packaged LED beads and are often used in commercial displays (such as stage backdrops and advertising walls).

[0003] For example, a foldable LED display screen disclosed in patent number CN118645043B includes a central shaft, a central locking device movably connected to the central shaft via bearings, and a first spherical movable section and a second spherical movable section slidably connected to the side of the central shaft. The first spherical movable section and the second spherical movable section are respectively arranged on both sides of the central locking device. It also includes an LED display screen assembly and an extra-long rod.

[0004] While the aforementioned device solves the problem of damage during folding, it still has the following drawbacks: Existing LED folding displays generally use wired power supplies, but in outdoor environments, cable interfaces are prone to dust and water accumulation. Without monthly cleaning and maintenance, this can easily lead to signal attenuation or unstable power supply. Therefore, the current wired power supply method poses safety hazards and lacks reliability in outdoor environments. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a foldable display screen with a wireless power supply module, so that the LED foldable display board has a wireless power supply function.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a foldable display screen with a wireless power supply module, comprising a base connected to the bottom of the foldable screen body, an electrical control box fixedly connected to the back of the foldable screen body, a battery for powering the foldable screen body connected inside the electrical control box, a cover plate connected to the outer wall of the electrical control box, an outer frame fixedly connected to the outer wall of the cover plate, a receiving coil electrically connected to the battery fixedly connected inside the outer wall of the cover plate, an electrical board movably connected inside the outer frame, a transmitting coil corresponding to the receiving coil fixedly connected to the inner wall of the electrical board, and a plug electrically connected to the transmitting coil connected to the outer wall of the electrical board via a cable.

[0007] Furthermore, a first magnetic frame is fixedly connected to the outer wall of the cover plate, the first magnetic frame being located inside the outer frame, and a second magnetic frame corresponding to the first magnetic frame is fixedly connected to the inner wall of the circuit board.

[0008] Furthermore, the upper and lower top surfaces of the outer frame are provided with sliding grooves, and a slider that is fixedly connected to the circuit board is slidably connected in the sliding grooves. A side plate is fixedly connected to one side of the slider located on the top surface of the circuit board, and a plug rod is inserted into the side plate. The plug rod is inserted into the top surface of the outer frame.

[0009] Furthermore, the outer wall of the outer frame is rotatably connected to two rotating plates, the inner wall of the rotating plates abuts against the outer wall of the slider, both rotating plates are located on the outer wall of the outer frame, and the outer wall of the outer frame is fixedly connected to two L-shaped mounting plates, with the rotating plates overlapping the L-shaped mounting plates.

[0010] Furthermore, an installation box is fitted onto the outer wall of the outer frame, and the installation box is used to protect the circuit board and the outer frame.

[0011] Furthermore, a second magnetic sheet is fixedly connected to the four corners of the inner wall of the mounting box, and a first magnetic sheet corresponding to the second magnetic sheet is fixedly connected to the top and bottom surfaces of the outer frame.

[0012] Furthermore, a storage box is fixedly connected to the bottom surface of the mounting box, and the storage box is used to store cables and plugs.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This invention, by incorporating a battery, receiving coil, transmitting coil, and plug, eliminates the need for traditional sockets when charging the foldable screen. The battery provides power to the device itself; when charging is required, simply push the battery board to bring the transmitting and receiving coils into contact, and connect the plug to AC power to supply power to the battery. This reduces exposed electrical interfaces, lowers the risk of short circuits and leakage, and facilitates maintenance. The structure is simple, easy to operate, and highly practical. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the entire utility model; Figure 2 This is a three-dimensional structural diagram of the back of the folding screen body of this utility model; Figure 3 This is a three-dimensional structural diagram of the unfolded state of the electrical control box, cover plate, and receiving coil of this utility model; Figure 4 For this Figure 3 A magnified three-dimensional structural diagram of A in the middle; Figure 5 This is a three-dimensional cross-sectional structural diagram of the outer frame and protective box of this utility model in their unfolded state; Figure 6 This is a three-dimensional cross-sectional structural diagram of the mounting box, outer frame, cover plate, and battery of this utility model.

[0015] In the diagram: 1. Foldable screen body; 2. Base; 3. Control box; 4. Cover plate; 5. Plug; 6. Mounting box; 7. Battery; 8. Outer frame; 9. Receiving coil; 10. Insert rod; 11. Storage box; 12. Circuit board; 13. First magnetic plate; 14. Slide groove; 15. Turning plate; 16. First magnetic frame; 17. Slider; 18. Side plate; 19. Second magnetic plate; 20. Transmitting coil; 21. L-shaped mounting plate; 22. Second magnetic frame. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] like Figures 1 to 6 As shown, a foldable display screen with a wireless power supply module includes a foldable screen body 1 connected to a base 2 at the bottom of the foldable screen body 1. An electrical control box 3 is fixedly connected to the back of the foldable screen body 1. A battery 7 for powering the foldable screen body 1 is connected inside the electrical control box 3. A cover plate 4 is connected to the outer wall of the electrical control box 3. An outer frame 8 is fixedly connected to the outer wall of the cover plate 4. A receiving coil 9 electrically connected to the battery 7 is fixedly connected inside the outer wall of the cover plate 4. An electric plate 12 is movably connected inside the outer frame 8. A transmitting coil 20 corresponding to the receiving coil 9 is fixedly connected to the inner wall of the electric plate 12. A plug 5 electrically connected to the transmitting coil 20 is connected to the outer wall of the electric plate 12 via a cable.

[0018] like Figure 1 As shown, the foldable display screen with wireless power supply module in this utility model is similar in structure to existing foldable LED display screens, such as the foldable LED display screen disclosed in patent publication number CN118645043B. The main improvement of this utility model is that it enables the LED foldable display board to have wireless power supply functionality, such as... Figures 1 to 6 As shown, in this invention, the foldable display screen with a wireless power supply module supplies power to the foldable screen body 1 via the battery 7 located in the control box 3 (similar to the battery function in existing smartphones). When the battery 7 is low on power, the battery board 12 can be pushed, causing it to slide forward within the outer frame 8. This allows the transmitting coil 20 on the inner wall of the battery board 12 to align with the receiving coil 9 within the outer frame 8. The plug 5, connected to the battery board 12 via a cable, is then connected to the mains power supply, energizing the battery board 12 and thus the transmitting coil 20 and receiving coil 9. This provides power to the battery 7, which is electrically connected to the receiving coil 9, ensuring the foldable screen body 1 is powered. Furthermore, the arrangement of the outer frame 8 and the battery board 12 facilitates the stable placement of the battery board 12 within the outer frame 8, ensuring the stable merging of the two coils.

[0019] By incorporating a battery 7, receiving coil 9, transmitting coil 20, and plug 5, the charging of the foldable screen body 1 no longer relies on traditional sockets. The battery 7 provides power to the device itself; when charging is needed, simply push the battery board 12 to make the transmitting coil 20 contact the receiving coil 9, and connect the plug 5 to the mains power supply to power the battery 7. This reduces exposed electrical interfaces, lowers the risk of short circuits and leakage, and makes maintenance convenient.

[0020] The energizing principle of the receiving coil 9 and the transmitting coil 20 is similar to that of wireless charging for smartphones, which is a well-known technology, so it will not be described in detail here.

[0021] As a preferred technical solution of this utility model, a first magnetic frame 16 is fixedly connected to the outer wall of the cover plate 4, the first magnetic frame 16 is located inside the outer frame 8, and a second magnetic frame 22 corresponding to the first magnetic frame 16 is fixedly connected to the inner wall of the circuit board 12.

[0022] Specifically, when the receiving coil 9 and the transmitting coil 20 are in contact, the second magnetic frame 22 will be in contact with the first magnetic frame 16 to ensure a stable contact between the receiving coil 9 and the transmitting coil 20. When it is necessary to separate the two coils, the plate 12 can be pulled forcefully to separate the two coils.

[0023] As a preferred technical solution of this utility model, the upper and lower top surfaces of the outer frame 8 are provided with sliding grooves 14, and a slider 17 fixedly connected to the circuit board 12 is slidably connected in the sliding grooves 14. A side plate 18 is fixedly connected to one side of the slider 17 located on the top surface of the circuit board 12, and a plug rod 10 is inserted into the side plate 18. The plug rod 10 is inserted into the top surface of the outer frame 8.

[0024] Specifically, when the circuit board 12 slides, it drives the slider 17 to slide within the groove 14. This arrangement enhances the stability of the circuit board 12 within the outer frame 8. When the slider 17 moves, it drives the side plate 18 and the insertion rod 10 to move. When the transmitting coil 20 on the circuit board 12 is in contact with the receiving coil 9, the slider 17 drives the insertion rod 10 to be inserted into the insertion hole on the top surface of the outer frame 8, which again ensures the stability of the transmitting coil 20 and the receiving coil 9 when they are in contact.

[0025] After charging is complete, lift the plug rod 10 to disengage it from the socket on the top surface of the outer frame 8. Then move the battery board 12 backward to separate the two coils. At this time, the slider 17 drives the side plate 18 to move along with the battery board 12. Then plug the plug rod 10 back in and fix the position of the battery board 12 back in place.

[0026] As a preferred technical solution of this utility model, the outer wall of the outer frame 8 is rotatably connected to two rotating plates 15, the inner wall of the rotating plate 15 abuts against the outer wall of the slider 17, both rotating plates 15 are located on the outer wall of the outer frame 8, and the outer wall of the outer frame 8 is fixedly connected to two L-shaped mounting plates 21, with the rotating plates 15 overlapping the L-shaped mounting plates 21.

[0027] Specifically, in order to prevent the circuit board 12 from detaching from the outer frame 8 at will, a rotating plate 15 is used to block the slide groove 14. The rotating plate 15 rotates inside the L-shaped mounting plate 21 to ensure the stability of the rotating plate 15. The rotating plate 15 can be rotated open to disengage the slider 17 from the slide groove 14 and the circuit board 12 from the outer frame 8, which facilitates maintenance.

[0028] As a preferred embodiment of this utility model, a mounting box 6 is fitted onto the outer wall of the outer frame 8. The mounting box 6 is used to protect the circuit board 12 and the outer frame 8. The mounting box 6 facilitates the protection of the circuit board 12 and the outer frame 8, preventing dust and other contaminants from entering.

[0029] As a preferred embodiment of this utility model, the four corners of the inner wall of the mounting box 6 are fixedly connected with second magnetic pieces 19, and the top and bottom surfaces of the outer frame 8 are fixedly connected with first magnetic pieces 13 corresponding to the second magnetic pieces 19. After the mounting box 6 is snapped into the outer frame 8, it protects the circuit board 12, the rotating plate 15, the slider 17, and the insertion rod 10. To ensure the stability of the mounting box 6 on the outside of the outer frame 8, the second magnetic pieces 19 will fit against the first magnetic pieces 13, thus ensuring the stability of the mounting box 6 on the outer frame 8.

[0030] As a preferred embodiment of this utility model, a storage box 11 is fixedly connected to the bottom surface of the mounting box 6. The storage box 11 is used to store cables and plugs 5. The storage box 11 facilitates the storage of cables and plugs 5, making it convenient to store them away after use.

[0031] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A foldable display screen with a wireless power supply module, comprising a foldable screen body (1) connected to a base (2) at the bottom of the foldable screen body (1), characterized in that, A control box (3) is fixedly connected to the back of the folding screen body (1). A battery (7) for powering the folding screen body (1) is connected inside the control box (3). A cover plate (4) is connected to the outer wall of the control box (3). An outer frame (8) is fixedly connected to the outer wall of the cover plate (4). A receiving coil (9) electrically connected to the battery (7) is fixedly connected inside the outer wall of the cover plate (4). An electric plate (12) is movably connected inside the outer frame (8). A transmitting coil (20) corresponding to the receiving coil (9) is fixedly connected to the inner wall of the electric plate (12). A plug (5) electrically connected to the transmitting coil (20) is connected to the outer wall of the electric plate (12) via a cable.

2. A foldable display screen with a wireless power supply module according to claim 1, characterized in that, The outer wall of the cover plate (4) is fixedly connected to a first magnetic frame (16), which is located inside the outer frame (8). The inner wall of the circuit board (12) is fixedly connected to a second magnetic frame (22) corresponding to the first magnetic frame (16).

3. A foldable display screen with a wireless power supply module according to claim 2, characterized in that, The upper and lower top surfaces of the outer frame (8) are provided with sliding grooves (14). A slider (17) that is fixedly connected to the circuit board (12) is slidably connected in the sliding groove (14). A side plate (18) is fixedly connected to one side of the slider (17) on the top surface of the circuit board (12). A plug rod (10) is inserted into the side plate (18). The plug rod (10) is inserted into the top surface of the outer frame (8).

4. A foldable display screen with a wireless power supply module according to claim 3, characterized in that, The outer wall of the outer frame (8) is rotatably connected to two rotating plates (15). The inner wall of the rotating plate (15) abuts against the outer wall of the slider (17). Both rotating plates (15) are located on the outer wall of the outer frame (8). The outer wall of the outer frame (8) is fixedly connected to two L-shaped mounting plates (21). The rotating plates (15) overlap the L-shaped mounting plates (21).

5. A foldable display screen with a wireless power supply module according to claim 4, characterized in that, The outer wall of the outer frame (8) is fitted with a mounting box (6), which is used to protect the circuit board (12) and the outer frame (8).

6. A foldable display screen with a wireless power supply module according to claim 5, characterized in that, The four corners of the inner wall of the mounting box (6) are fixedly connected with second magnetic pieces (19), and the top and bottom surfaces of the outer frame (8) are fixedly connected with first magnetic pieces (13) corresponding to the second magnetic pieces (19).

7. A foldable display screen with a wireless power supply module according to claim 6, characterized in that, The bottom surface of the mounting box (6) is fixedly connected to a storage box (11), which is used to store cables and plugs (5).

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