Button type double-magnet self-generating device

Abstract

The invention discloses a button type double-magnet self-generating device, which belongs to the field of generating devices and comprises a soft magnetic shell, a soft magnetic moving part, a coil assembly and a permanent magnet assembly. In an initial state, the power generation end of the soft magnetic moving part is in contact with the magnet on one side, and a first closed magnetic circuit is formed; when the operation end of the soft magnetic moving part is pressed, the power generation end of the soft magnetic moving part is in contact with the magnet on the other side, a second closed magnetic circuit is formed, and the direction of magnetic lines passing through the power generation end of the soft magnetic moving part in the second closed magnetic circuit is opposite to that of magnetic lines passing through the power generation end of the soft magnetic moving part in the first closed magnetic circuit. The operation end of the soft magnetic moving part moves to drive the power generation end of the soft magnetic moving part to be in contact with different magnets so as to change the magnetic line direction of the soft magnetic plate, the power generation efficiency is high, the current is strong, and the power supply amount is sufficient; the structure is ingenious, the number of components is small, a closed magnetic circuit is simple, manufacturing is convenient, production efficiency is improved, manufacturing cost is reduced, and assembling is fast.

Description

Technical Field

[0001] This invention relates to the field of power generation devices, and more particularly to a push-button type dual-magnet self-generating device. Background Technology

[0002] Self-generating modules utilize the principle of electromagnetic induction. By pressing or other methods, the direction of magnetic flux is changed, generating an electromotive force in a coil, which in turn induces a current in a closed circuit. Due to their compact structure, self-generating modules are widely used in wireless control switches or devices, such as wireless doorbell buttons, wireless light switches, remote controls, and wireless keyboards.

[0003] Common self-generating modules mainly consist of two parts: a coil and a magnetic circuit. The magnetic circuit typically comprises a permanent magnet, a magnetic guide frame, and a switching lever. The coil is wound around the magnetic circuit, and the switching lever changes the direction of the magnetic flux through the coil, inducing a current in the coil. Most dual-magnet self-generating modules use a magnet-opposed structure, where two magnets are positioned opposite each other on the upper and lower sides of the switching lever. To reduce mutual interference between the magnetic fields of the two magnets, a certain distance needs to be maintained between them, which necessitates a larger toggle travel on the switching lever. However, a larger toggle travel is detrimental to the tactile feel of the pressing operation and also hinders the flat design of the self-generating module. Summary of the Invention

[0004] The purpose of this invention is to provide a button-type dual-magnet self-generating device to solve the problems existing in the current self-generating modules.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] The present invention provides a button-type dual-magnet self-generating device, comprising a soft magnetic housing, a soft magnetic moving component disposed inside the soft magnetic housing, a coil assembly disposed at the operating end of the soft magnetic moving component, and a permanent magnet assembly disposed at the generating end of the soft magnetic moving component.

[0007] The coil assembly includes a mounting bracket and a coil, the mounting bracket being disposed on the operating end of the soft magnetic moving part, and the coil being disposed on the mounting bracket;

[0008] The permanent magnet assembly includes a power generation end of a soft magnetic moving component, a fixing frame is provided on the outside of the power generation end of the soft magnetic moving component, and magnets are provided on both sides of the fixing frame.

[0009] In the initial state, the power generation end of the soft magnetic moving component is in contact with the magnet on one side, forming a first closed magnetic circuit. When the operating end of the soft magnetic moving component is pressed, the power generation end of the soft magnetic moving component is in contact with the magnet on the other side, forming a second closed magnetic circuit. The direction of the magnetic field lines passing through the power generation end of the soft magnetic moving component in the second closed magnetic circuit is opposite to the direction of the magnetic field lines passing through the power generation end of the soft magnetic moving component in the first closed magnetic circuit.

[0010] Furthermore, the soft magnetic housing includes a main housing, with a first end plate and a second end plate respectively provided at both ends of the main housing. A first receiving cavity is formed between the main housing and the second end plate, and a second receiving cavity is formed between the main housing and the first end plate. The central shaft passes through the first receiving cavity and the second receiving cavity. The coil assembly is disposed in the first receiving cavity, and the permanent magnet assembly is disposed in the second receiving cavity.

[0011] Furthermore, the soft magnetic moving component includes a central shaft, one end of which is fitted with a soft magnetic plate via a nut. The central shaft serves as the operating end of the soft magnetic moving component, and the soft magnetic plate serves as the power generation end of the soft magnetic moving component.

[0012] Furthermore, the central shaft includes a first shaft segment, and a second shaft segment is provided at one end of the first shaft segment.

[0013] Furthermore, the mounting bracket is disposed on the first shaft segment, the soft magnetic plate is disposed on the second shaft segment, one side of the soft magnetic plate is pressed against the shaft shoulder, and the other side of the soft magnetic plate is locked by a nut.

[0014] Furthermore, the fixing frame includes a body, and positioning grooves are provided on both sides of the body. The positioning grooves are annular grooves, and the magnets are circular rings disposed within the positioning grooves.

[0015] Furthermore, a gap is provided between the main body and the inner wall of the soft magnetic shell.

[0016] Furthermore, the soft magnetic moving component includes an integrated moving component, which includes an integrally formed long shaft and a connecting plate. The long shaft serves as the operating end of the soft magnetic moving component, the mounting bracket is disposed on the long shaft, and the connecting plate serves as the power generation end of the soft magnetic moving component.

[0017] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0018] In the initial state of this invention, the power-generating end of the soft magnetic moving component is in contact with a magnet on one side, forming a first closed magnetic circuit. Pressing the operating end of the soft magnetic moving component causes it to contact a magnet on the other side, forming a second closed magnetic circuit. The direction of the magnetic field lines passing through the power-generating end of the soft magnetic moving component in the second closed magnetic circuit is opposite to that in the first closed magnetic circuit. By moving the operating end of the soft magnetic moving component, the power-generating end is brought into contact with different magnets, thereby changing the direction of the magnetic field lines of the soft magnetic plate. Based on the principle of electromagnetic induction, the coil generates current, making it suitable for a press-type self-generating device with high power generation efficiency, strong current, and sufficient power supply. This invention has a clever structure, few components, and a simple closed magnetic circuit formed by the permanent magnet component and the coil component, making it easy to manufacture, greatly improving production efficiency, reducing manufacturing costs, and allowing for quick assembly. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a three-dimensional structural diagram of a button-type dual-magnet self-generating device according to an embodiment of the present invention;

[0021] Figure 2 This is a three-dimensional structural diagram of the button-type dual-magnet self-generating device according to Embodiment 1 of the present invention from another angle.

[0022] Figure 3 This is a left view of a button-type dual-magnet self-generating device according to an embodiment of the present invention;

[0023] Figure 4 This is a cross-sectional view of the push-button type dual-magnet self-generating device according to Embodiment 1 of the present invention along the AA direction;

[0024] Figure 5 This is a cross-sectional view of the soft magnetic shell according to Embodiment 1 of the present invention;

[0025] Figure 6 This is a three-dimensional structural diagram of the central axis of Embodiment 1 of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of Embodiment 1 of the present invention with the soft magnetic shell removed;

[0027] Figure 8 This is a schematic diagram of the structure of the magnet and soft magnetic plate in Embodiment 1 of the present invention;

[0028] Figure 9 This is a schematic diagram of the structure of the fixing frame and magnet in Embodiment 1 of the present invention;

[0029] Figure 10 This is a schematic diagram of the fixing frame and magnet from another angle in Embodiment 1 of the present invention;

[0030] Figure 11 This is a schematic diagram of the structure of the fixing frame according to Embodiment 1 of the present invention;

[0031] Figure 12 for Figure 4 Enlarged view of point B in the middle;

[0032] Figure 13 This is a three-dimensional structural diagram of the button-type dual-magnet self-generating device according to Embodiment 2 of the present invention;

[0033] Figure 14 This is a cross-sectional view of the button-type dual-magnet self-generating device according to Embodiment 2 of the present invention.

[0034] Explanation of reference numerals in the attached drawings: 1. Soft magnetic housing; 2. Central shaft; 3. Mounting bracket; 4. Coil; 5. Fixing bracket; 6. Magnet; 7. Soft magnetic plate; 8. Nut; 9. Integrated moving part; 901. Long shaft; 902. Connecting plate;

[0035] 1-1 Main housing; 1-2 First end plate; 1-3 Second end plate; 1-4 First receiving cavity; 1-5 Second receiving cavity; 2-1 First shaft section; 2-2 Second shaft section; 2-3 Boss; 5-1 Body; 5-2 Positioning groove; 5-3 Limiting block; 5-4 Through groove. Detailed Implementation

[0036] A button-type dual-magnet self-generating device includes a soft magnetic housing 1, a soft magnetic moving part is disposed inside the soft magnetic housing 1, a coil assembly is disposed at the operating end of the soft magnetic moving part, and a permanent magnet assembly is disposed at the generating end of the soft magnetic moving part.

[0037] The coil assembly includes a mounting frame 3 and a coil 4. The mounting frame 3 is disposed on the operating end of the soft magnetic moving part, and the coil 4 is disposed on the mounting frame 3.

[0038] The permanent magnet assembly includes a power generation end of a soft magnetic moving part, a fixing frame 5 is provided on the outside of the power generation end of the soft magnetic moving part, and magnets 6 are provided on both sides of the fixing frame 5.

[0039] In the initial state, the power generation end of the soft magnetic moving component is in contact with the magnet 6 on one side, forming a first closed magnetic circuit. When the operating end of the soft magnetic moving component is pressed, the power generation end of the soft magnetic moving component is in contact with the magnet 6 on the other side, forming a second closed magnetic circuit. The direction of the magnetic field lines passing through the power generation end of the soft magnetic moving component in the second closed magnetic circuit is opposite to the direction of the magnetic field lines passing through the power generation end of the soft magnetic moving component in the first closed magnetic circuit.

[0040] Example 1

[0041] In this embodiment, the soft magnetic moving component includes a central shaft 2. A soft magnetic plate 7 is mounted on one end of the central shaft 2 via a nut 8. The central shaft 2 serves as the operating end of the soft magnetic moving component, and the soft magnetic plate 7 serves as the power generation end of the soft magnetic moving component.

[0042] Specifically, such as Figure 1-12 As shown, a button-type dual-magnet self-generating device includes a soft magnetic housing 1, a central shaft 2 mounted on the soft magnetic housing 1, the central shaft 2 being movable along the central axis direction, and a coil assembly and a permanent magnet assembly mounted on the central shaft 2.

[0043] The coil assembly includes a mounting bracket 3 and a coil 4. The mounting bracket 3 is mounted on the central shaft 2, and the coil 4 is wound around the mounting bracket 3. The mounting bracket 3 is made of plastic.

[0044] The permanent magnet assembly includes a soft magnetic plate 7, which is mounted on the central shaft 2. A fixing frame 5 is provided on the outer side of the soft magnetic plate 7, and magnets 6 are installed on both sides of the fixing frame 5. The magnets 6 are circular.

[0045] In the initial state, the soft magnetic plate 7 is in contact with the magnet 6 on one side, forming a first closed magnetic circuit. Pressing the central shaft 2 causes the soft magnetic plate 7 to contact the magnet 6 on the other side, forming a second closed magnetic circuit. The direction of the magnetic lines of force passing through the soft magnetic plate 7 in the second closed magnetic circuit is opposite to the direction of the magnetic lines of force passing through the soft magnetic plate 7 in the first closed magnetic circuit.

[0046] like Figure 5 As shown, the soft magnetic housing 1 includes a main housing 1-1. A first end plate 1-2 and a second end plate 1-3 are respectively installed at both ends of the main housing 1-1. A first receiving cavity 1-4 is formed between the main housing 1-1 and the second end plate 1-3. A second receiving cavity 1-5 is formed between the main housing 1-1 and the first end plate 1-2. The inner diameter of the first receiving cavity 1-4 is smaller than the inner diameter of the second receiving cavity 1-5. The central shaft 2 passes through the first receiving cavity 1-4 and the second receiving cavity 1-5. The coil assembly is disposed in the first receiving cavity 1-4, and the permanent magnet assembly is disposed in the second receiving cavity 1-5.

[0047] like Figure 6 As shown, the central shaft 2 includes a first shaft segment 2-1, one end of which is connected to a second shaft segment 2-2. The mounting bracket 3 is disposed on the first shaft segment 2-1. The soft magnetic plate 7 is mounted on the second shaft segment 2-2, one side of which is pressed against the shaft shoulder, and the other side of which is locked by a nut 8.

[0048] The fixing frame 5 includes a body 5-1, and positioning grooves 5-2 are provided on both sides of the body 5-1. The positioning grooves 5-2 are set as annular grooves, and the magnet 6 is set as a ring and is disposed in the positioning grooves 5-2.

[0049] The outer side of the main body is connected to several limiting blocks 5-3, which are evenly distributed in a circle. The soft magnetic shell 1 is provided with a receiving groove. After installation, the limiting blocks 5-3 are located in the receiving groove. A through groove 5-4 is provided on one side of two symmetrically arranged limiting blocks 5-3. In this embodiment, there are four limiting blocks 5-3 and two through grooves 5-4.

[0050] like Figure 12 As shown, a gap d is provided between the body 5-1 and the inner wall of the soft magnetic housing 1. Specifically, after installation, there is a gap d between the two end faces of the body 5-1 and the inner walls of the two sides of the second receiving cavity 1-5, and the magnet 6 is in contact with the inner walls of the two sides of the second receiving cavity 1-5. This design avoids contact between the fixing frame 5 and the soft magnetic housing 1.

[0051] Example 2

[0052] like Figure 13-14 As shown, the soft magnetic moving component in this embodiment includes an integral moving component 9. The cross-section of the integral moving component 9 is set in a T-shape. The integral moving component 9 includes an integrally formed long shaft 901 and a connecting plate 902. The long shaft 901 serves as the operating end of the soft magnetic moving component. The mounting bracket 3 is installed on the long shaft 901. The connecting plate 902 serves as the power generation end of the soft magnetic moving component.

[0053] In the initial state, the connecting plate 902 is in contact with the magnet 6 on one side, forming a first closed magnetic circuit. Pressing the long shaft 901 causes the connecting plate 902 to contact the magnet 6 on the other side, forming a second closed magnetic circuit. The direction of the magnetic field lines passing through the connecting plate 902 in the second closed magnetic circuit is opposite to the direction of the magnetic field lines passing through the connecting plate 902 in the first closed magnetic circuit.

[0054] In addition, in this embodiment, the soft magnetic shell 1 is set to a cylindrical shape; of course, the soft magnetic shell 1 can also be designed as the shape in Embodiment 1, or other suitable shapes, as long as they can meet the actual needs.

[0055] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A button-type dual-magnet self-generating device, characterized in that: It includes a soft magnetic housing (1), a soft magnetic moving part is provided inside the soft magnetic housing (1), a coil assembly is provided at the operating end of the soft magnetic moving part, and a permanent magnet assembly is provided at the power generation end of the soft magnetic moving part; The coil assembly includes a mounting bracket (3) and a coil (4). The mounting bracket (3) is disposed on the operating end of the soft magnetic moving part, and the coil (4) is disposed on the mounting bracket (3). The permanent magnet assembly includes a power generation end of a soft magnetic moving part, and a fixing frame (5) is provided on the outside of the power generation end of the soft magnetic moving part. Magnets (6) are provided on both sides of the fixing frame (5). In the initial state, the power generation end of the soft magnetic moving part is in contact with the magnet (6) on one side, forming a first closed magnetic circuit; when the operating end of the soft magnetic moving part is pressed, the power generation end of the soft magnetic moving part is in contact with the magnet (6) on the other side, forming a second closed magnetic circuit. The direction of the magnetic field lines passing through the power generation end of the soft magnetic moving part in the second closed magnetic circuit is opposite to the direction of the magnetic field lines passing through the power generation end of the soft magnetic moving part in the first closed magnetic circuit.

2. The button-type dual-magnet self-generating device according to claim 1, characterized in that: The soft magnetic housing (1) includes a main housing (1-1), with a first end plate (1-2) and a second end plate (1-3) respectively provided at both ends of the main housing (1-1). A first receiving cavity (1-4) is formed between the main housing (1-1) and the second end plate (1-3), and a second receiving cavity (1-5) is formed between the main housing (1-1) and the first end plate (1-2). The central shaft (2) passes through the first receiving cavity (1-4) and the second receiving cavity (1-5). The coil assembly is disposed in the first receiving cavity (1-4), and the permanent magnet assembly is disposed in the second receiving cavity (1-5).

3. The button-type dual-magnet self-generating device according to claim 1, characterized in that: The soft magnetic moving part includes a central shaft (2), and a soft magnetic plate (7) is installed at one end of the central shaft (2) by a nut (8). The central shaft (2) serves as the operating end of the soft magnetic moving part, and the soft magnetic plate (7) serves as the power generation end of the soft magnetic moving part.

4. The button-type dual-magnet self-generating device according to claim 3, characterized in that: The central shaft (2) includes a first shaft segment (2-1), and a second shaft segment (2-2) is provided at one end of the first shaft segment (2-1).

5. The button-type dual-magnet self-generating device according to claim 4, characterized in that: The mounting bracket (3) is set on the first shaft section (2-1), and the soft magnetic plate (7) is set on the second shaft section (2-2). One side of the soft magnetic plate (7) is pressed against the shaft shoulder, and the other side of the soft magnetic plate (7) is locked by the nut (8).

6. The button-type dual-magnet self-generating device according to claim 1, characterized in that: The fixing frame (5) includes a body (5-1), and a positioning groove (5-2) is provided in the body (5-1) near both sides. The positioning groove (5-2) is set as an annular groove, and the magnet (6) is set as a ring. The magnet (6) is set in the positioning groove (5-2).

7. The button-type dual-magnet self-generating device according to claim 6, characterized in that: A gap is provided between the main body (5-1) and the inner wall of the soft magnetic shell (1).

8. The button-type dual-magnet self-generating device according to claim 1, characterized in that: The soft magnetic moving component includes an integrated moving component (9), which includes an integrally formed long shaft (901) and a connecting plate (902). The long shaft (901) serves as the operating end of the soft magnetic moving component, the mounting bracket (3) is mounted on the long shaft (901), and the connecting plate (902) serves as the power generation end of the soft magnetic moving component.

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