Self-generating device based on PCB onboard coil

Abstract

The utility model relates to a self-generating device based on a PCB (Printed Circuit Board) onboard coil, which comprises a PCB, a magnetic isolation sheet, a magnet and a pressing assembly, the PCB is integrated with the onboard coil, the magnetic isolation sheet is attached to one side of the onboard coil, and the magnet is fixedly connected with the pressing assembly; the PCB and the magnetic isolation sheet are both provided with through holes for magnets to penetrate through. When the pressing assembly is pressed down or lifted up, the magnet is driven to penetrate through the onboard coil and the magnetic isolation sheet. The cost and the occupied space are reduced, and the personalized customization requirement is met.

Description

Technical Field

[0001] The utility model relates to a self - generating device, in particular to a self - generating device based on a PCB - board - mounted coil. Background Art

[0002] In practical applications, self - generating switch panels usually combine with wireless communication technologies (such as RF radio frequency technology) to achieve wireless control of devices such as lamps and electrical appliances. Users only need to gently press the self - generating switch panel, and electrical energy can be generated through the internal electrical energy collection device, and the control signal can be sent to the receiving device through the wireless communication module, thereby realizing the on - off control of the device.

[0003] However, the current self - generating technology adopts relatively complex energy collection technology and more components, making its cost higher than that of traditional control switches; moreover, the current self - generating devices lack flexibility in the actual design process. Usually, a relatively large coil is made into a module and then welded on the PCB board, resulting in a large occupied space and inability to be customized individually. Summary of the Utility Model

[0004] Based on this, in view of the problems of high cost and large space occupation of the current self - generating devices, it is necessary to provide a self - generating device based on a PCB - board - mounted coil.

[0005] A self - generating device based on a PCB - board - mounted coil provided by the utility model includes a PCB board, a magnetic isolation sheet, a magnet, and a pressing component. The PCB board is integrated with a board - mounted coil. The magnetic isolation sheet is attached to one side of the board - mounted coil, and the magnet is fixedly connected to the pressing component;

[0006] Both the PCB board and the magnetic isolation sheet are provided with through - holes for the magnet to pass through; when the pressing component is pressed down or lifted, the magnet is driven to pass through the board - mounted coil and the magnetic isolation sheet.

[0007] In some embodiments, it further includes a magnetic - attracting metal sheet, and the magnetic - attracting metal sheet is located on the side of the magnet away from the board - mounted coil.

[0008] In some embodiments, the pressing component includes a pressing plate, a support member, and a spring. One end of the pressing plate is fixedly connected to the magnet. A protrusion is provided on the side of the pressing plate close to the magnet, and the protrusion contacts and supports the support member. The spring is located at the other end of the pressing plate; when the other end of the pressing plate is pressed down, the spring is compressed, and the magnet passes through the board - mounted coil and the magnetic isolation sheet.

[0009] In some embodiments, the other end of the pressing plate is fixedly connected to the spring.

[0010] In some of these embodiments, one end of the pressing plate is fixedly connected to the magnet through a fixture. The fixture clamps the magnet, and the fixture is fixedly connected to one end of the pressing plate.

[0011] In some of these embodiments, the fixture is bolted to one end of the pressing plate.

[0012] In some of these embodiments, the fixture clamps the end of the magnet away from the on-board coil.

[0013] Compared with the prior art, the present utility model has at least the following beneficial effects:

[0014] 1. High integration: The PCB on-board coil enables the energy harvesting element to be highly integrated with the circuit board, effectively saving space, reducing external connections and wiring, and reducing the risk of failure, thereby facilitating the miniaturization and lightweight of the device.

[0015] 2. High reliability: The on-board coil is part of the PCB board, and the PCB board has high reliability and stability, thus improving the reliability of the entire energy harvesting system.

[0016] 3. Flexible design: The PCB on-board coil can be flexibly adjusted according to actual needs, such as the shape, size, number of turns, etc. of the coil, to adapt to different application scenarios and energy harvesting requirements, thereby meeting the needs of personalized customization.

[0017] 4. Strong environmental adaptability: The self-powered device based on the PCB on-board coil can work in various environments such as magnetic field changes and vibrations.

[0018] 5. Low maintenance cost: The PCB on-board coil is easy to integrate into the device, and its maintenance cost is relatively low. Once installed, users do not need to frequently replace the battery or perform other maintenance work. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. is a schematic structural diagram of a self-powered device based on a PCB on-board coil shown in an embodiment of the present utility model;

[0020] Figure 2 FIG. is an exploded perspective structural diagram of a self-powered device based on a PCB on-board coil shown in an embodiment of the present utility model;

[0021] Figure 3 FIG. is an exploded perspective structural diagram of a self-powered device based on a PCB on-board coil shown in another embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will describe in detail the specific embodiments of the present utility model with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be intermediate elements at the same time. On the contrary, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used herein in the specification of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0025] See Figure 1 and 2 , a schematic structural diagram and an exploded perspective structural diagram of a self - generating device based on a PCB - board - mounted coil shown in an embodiment of the present utility model. The self - generating device includes a PCB board 1, a magnetic isolation sheet 2, a magnet 3, and a pressing assembly 4. The PCB board 1 is integrated with a board - mounted coil 11. The magnetic isolation sheet 2 is attached to one side of the board - mounted coil 11. The magnet 3 is fixedly connected to the pressing assembly 4;

[0026] Both the PCB board 1 and the magnetic isolation sheet 2 are provided with through - holes for the magnet 3 to pass through. When the pressing assembly 4 is pressed down or lifted up, the magnet 3 is driven to pass through the board - mounted coil and the magnetic isolation sheet 2.

[0027] In this embodiment, the board - mounted coil 11 is integrated on the PCB board 1, which can greatly reduce the space occupation. The board - mounted coil 11 is used to cut magnetic induction lines and generate magnetic induction current by using the principle of electromagnetic induction. The magnetic isolation sheet 2 has excellent magnetic conductivity, can increase the magnetic flux of the board - mounted coil 11, reduce the loss of the board - mounted coil 11, make the magnetic induction lines tightly surround the magnetic isolation sheet 2 as the center, increase the electromagnetic induction intensity, and improve the electromagnetic conversion efficiency. The magnet 3 generates its own magnetic field to provide a magnetic field environment for cutting magnetic induction lines.

[0028] When the pressing component 4 is pressed down or lifted, it drives the magnet 3 to pass through the on-board coil and the magnetic isolation sheet 2 to cut the magnetic induction lines to generate current.

[0029] In some embodiments, as Figure 3 shown, the self-power generation device further includes a magnetic attraction metal sheet 5, and the magnetic attraction metal sheet 5 is located on the side of the magnet 3 away from the on-board coil 11. In the state without external force, the magnetic attraction metal sheet 5 and the magnet 3 are attracted to each other, thereby giving the pressing component 4 a stable initial state. Moreover, after the pressing component 4 is pressed and rebounds, the mutual attraction between the magnetic attraction metal sheet 5 and the magnet 3 will also generate a sound feedback, which can improve the user experience; in addition, the magnetic attraction metal sheet 5 also plays a role in magnetic shielding to prevent the magnetic field energy from generating an eddy current effect in places where it is not needed.

[0030] In some embodiments, as Figure 3 shown, the pressing component 4 includes a pressing plate 41, a support member 42 and a spring 43. One end of the pressing plate 41 is fixedly connected to the magnet 3. A protrusion 411 is provided on the side of the pressing plate 41 close to the magnet 3, and the protrusion 411 contacts and supports the support member 42. The spring 43 is located at the other end of the pressing plate 41; when the other end of the pressing plate 41 is pressed down, the spring 43 is compressed, and the magnet 3 passes through the on-board coil 11 and the magnetic isolation sheet 2.

[0031] Optionally, the other end of the pressing plate 41 is fixedly connected to the spring 43. The spring 43 is fixed below the pressing plate 41. After the pressing plate 41 is pressed down, it can provide an upward elastic force to make the pressing plate 41 rebound upward, so that a magnetic induction line cutting movement can be performed in the reverse direction again, better improving the efficiency of magnetic power generation, and the generated electric quantity will also increase exponentially.

[0032] Optionally, one end of the pressing plate 41 is fixedly connected to the magnet 3 through a fixture 44, the fixture 44 clamps the magnet 3, and the fixture 44 is fixedly connected to one end of the pressing plate 41.

[0033] Optionally, the fixture 44 is connected to one end of the pressing plate 41 by a bolt 45.

[0034] Optionally, the fixture 44 clamps the end of the magnet 3 away from the on-board coil 11.

[0035] In this embodiment, after the user presses the pressing plate 41, the magnet 3 fixed to the other end of the pressing plate 41 will move towards the through hole direction, and there is a relative speed between the magnet 3 and the on-board coil 11. According to Faraday's law of electromagnetic induction, an induced electromotive force will be generated in the circuit.

[0036] After pressing, the spring 45 is compressed and deformed, and then a resilience is generated to rebound the pressing plate 41 in the reverse direction, thereby driving the magnet 3 and the on-board coil 11 to generate a relative speed in the reverse direction, and then performing a magnetic induction cutting motion again.

[0037] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0038] The above-described embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A self-generating device based on a PCB board-mounted coil, characterized in that: It includes a PCB board, a magnetic isolation sheet, a magnet and a pressing assembly, wherein the PCB board is integrated with an onboard coil, the magnetic isolation sheet is attached to one side of the onboard coil, and the magnet is fixedly connected to the pressing assembly; The PCB board and the magnetic isolation sheet are both provided with through holes for the magnet to pass through; when the pressing assembly is pressed down or lifted up, the magnet is driven to pass through the onboard coil and the magnetic isolation sheet.

2. The self-generating device based on PCB board-mounted coil according to claim 1 is characterized in that: It also includes a magnetic metal sheet, which is located on a side of the magnet away from the onboard coil.

3. The self-generating device based on PCB board-mounted coil according to claim 1 is characterized in that: The pressing assembly includes a pressing plate, a support member and a spring. One end of the pressing plate is fixedly connected to the magnet. A protrusion is provided on the end of the pressing plate close to the magnet. The protrusion is in contact with and supported by the support member. The spring is located at the other end of the pressing plate. When the other end of the pressing plate is pressed downward, the spring is compressed, and the magnet passes through the on-board coil and the magnetic isolation sheet.

4. The self-generating device based on PCB board-mounted coil according to claim 3 is characterized in that: The other end of the pressing plate is fixedly connected to the spring.

5. The self-generating device based on PCB board-mounted coil according to claim 3 is characterized in that: One end of the pressing plate is fixedly connected to the magnet via a clamp, the clamp clamps the magnet, and the clamp is fixedly connected to one end of the pressing plate.

6. The self-generating device based on PCB board-mounted coil according to claim 5, characterized in that: The clamp is connected with one end of the pressing plate by bolts.

7. The self-generating device based on PCB board-mounted coil according to claim 5, characterized in that: The clamp clamps one end of the magnet away from the on-board coil.

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