A push-button magnetoelectric device

Abstract

The present invention discloses a push-button magnetic electricity generation device, which includes a first magnetic guide frame. The first magnetic guide frame, the second magnetic guide frame and the third magnetic guide frame are all in a U shape. The first magnetic guide frame is sleeved outside the second magnetic guide frame. The N pole and the S pole of the permanent magnet are fixedly connected to the middle plate of the first magnetic guide frame and the middle plate of the second magnetic guide frame respectively. The coil is wound on the third magnetic guide frame. The groove surface of the third magnetic guide frame faces the groove surface of the second magnetic guide frame. The third magnetic guide frame and the second magnetic guide frame can move relative to each other along the length direction of the middle plate. The moving part is controlled by a spring to reset. When the spring is in the natural state, the left side plate of the third magnetic guide frame contacts the left side plate of the second magnetic guide frame, and the right side plate of the third magnetic guide frame contacts the right side plate of the first magnetic guide frame. When the spring is in the compressed state, the left side plate of the third magnetic guide frame contacts the left side plate of the first magnetic guide frame, and the right side plate of the third magnetic guide frame contacts the right side plate of the second magnetic guide frame. The magnetic circuit of the present invention is simple, convenient to process, and can generate electricity by magnetism.

Description

Technical Field

[0001] The present invention relates to a magnetoelectric device, and more particularly to a button-type magnetoelectric device. Background Art

[0002] With the improvement of living conditions, more and more families are beginning to use various smart home products. In order to achieve the purpose of controlling various smart home products, self-generating wireless switches have gradually appeared on the market. Self-generating wireless switches use the principle of magnetoelectricity to convert the mechanical energy generated when the user presses the switch into electrical energy, so that the wireless switch can generate an electromagnetic signal to control various smart home products.

[0003] Although after searching, in the patent document with Chinese patent number 2011102810349, a staggered interlocking magnetic power generation device is disclosed, including a permanent magnet, a soft magnetic material and a coil, the two ends of the permanent magnet are connected to the soft magnetic material, and the two magnetic poles face the same direction to form a "C" type magnet; one end of the iron core is wound back to the original lead-out end, and two branches are formed to face the same direction as the unleaded end to form an "E" type magnetic circuit, and the coil is wound on the middle lead-out end of the "E" type iron core, and the "C" type magnet and the "E" magnetic circuit are staggered and interlocked to form a power generation device. In this application, the "E" type iron core and the "C" type magnet are arranged in a horizontal direction, and magnetism is generated by controlling the relative movement of the "E" type iron core and the "C" type magnet up and down. Since the area occupied perpendicular to the pressing direction must be much larger than the area occupied in the pressing direction when ensuring the number of turns of the coil in the above-mentioned power generation device, the above-mentioned power generation device can only be suitable for making a flat switch with a short pressing stroke. For example, the power generation devices disclosed in Chinese patent documents such as 2015100355978, 2016108164418, and 2019101843322 can only be made into flat switches with short pressing strokes.

[0004] However, the existing power generation device is not suitable for making a push-button switch such as the foot-kick switch on the smart toilet. Summary of the invention

[0005] 1. Technical problem to be solved by the invention

[0006] The purpose of the present invention is to overcome the above-mentioned shortcomings and provide a button-type magnetoelectric device. The technical solution of the present invention is simple in structure, simple in magnetic circuit, and easy to process. Since the coil, spring, permanent magnet and magnetic frame in the entire structure are placed along the pressing direction, the area occupied by the pressing direction is much larger than the area perpendicular to the pressing direction while ensuring the number of coil windings. It is suitable for making a button-type switch such as a foot switch.

[0007] 2. Technical solution

[0008] To achieve the above object, the technical solution provided by the present invention is as follows:

[0009] A push-button magneto-electricity generating device of the present invention includes a coil, a permanent magnet having an N pole and an S pole, a spring, a first magnetic guide, a second magnetic guide, and a third magnetic guide. The first magnetic guide, the second magnetic guide, and the third magnetic guide are all in a U shape. The first magnetic guide is sleeved outside the second magnetic guide. The N pole and the S pole of the permanent magnet are respectively fixedly connected to the middle plate of the first magnetic guide and the middle plate of the second magnetic guide. The coil is wound around the third magnetic guide. The groove surface of the third magnetic guide faces the groove surface of the second magnetic guide. The third magnetic guide and the second magnetic guide can move relative to each other along the length direction of the middle plate. Among them, the moving part is controlled by the spring to reset. When the spring is in the natural state, the left side plate of the third magnetic guide contacts and conducts with the left side plate of the second magnetic guide, and the right side plate of the third magnetic guide contacts and conducts with the right side plate of the first magnetic guide. When the spring is in the compressed state, the left side plate of the third magnetic guide contacts and conducts with the left side plate of the first magnetic guide, and the right side plate of the third magnetic guide contacts and conducts with the right side plate of the second magnetic guide.

[0010] Furthermore, the first magnetic guide and the second magnetic guide are both fixedly arranged, and the third magnetic guide is movably arranged. One end of the spring is fixedly connected to the side plate of the third magnetic guide, and the other end of the spring is fixedly connected to a fixed mounting block.

[0011] Furthermore, the left side plate of the third magnetic guide is located between the left side plate of the second magnetic guide and the left side plate of the first magnetic guide, and the right side plate of the third magnetic guide is located between the right side plate of the second magnetic guide and the right side plate of the first magnetic guide.

[0012] Furthermore, the end faces of the two side plates of the third magnetic guide, the end faces of the two side plates of the second magnetic guide, and the end faces of the two side plates of the first magnetic guide are all flush.

[0013] Furthermore, an immovable insulating plastic frame is sleeved outside the middle plate of the third magnetic guide, and the insulating plastic frame and the third magnetic guide can move relative to each other. The coil is wound around the insulating plastic frame.

[0014] 3. Beneficial effects

[0015] Adopting the technical solution provided by the present invention, compared with the existing well-known technologies, it has the following beneficial effects:

[0016] (1) A button-type magnetoelectric device of the present invention, when the spring is in a natural state, the left side plate of the second magnetic frame contacts and conducts with the left side plate of the third magnetic frame, the right side plate of the third magnetic frame contacts and conducts with the right side plate of the first magnetic frame, and the middle plate of the first magnetic frame conducts with the middle plate of the second magnetic frame through a permanent magnet; and when the spring is in a compressed state, the right side plate of the second magnetic frame contacts and conducts with the right side plate of the third magnetic frame, the left side plate of the third magnetic frame contacts and conducts with the left side plate of the first magnetic frame, and the middle plate of the first magnetic frame conducts with the middle plate of the second magnetic frame through a permanent magnet. Therefore, by controlling the relative movement of the third magnetic frame and the second magnetic frame along the length direction of the middle plate, the direction of the magnetic force lines passing through the coil can be changed. According to the law of electromagnetic induction, the change of the magnetic force lines generates an induced current in the coil, thereby realizing magnetoelectricity;

[0017] (2) A button-type magnetoelectric device of the present invention has a simple structure, a simple magnetic circuit, and is easy to process. Since the coil, spring, permanent magnet, and magnetic frame in the entire structure are placed along the pressing direction, the area occupied by the pressing direction is much larger than the area perpendicular to the pressing direction while ensuring the number of coil windings. The device is suitable for making a button-type switch such as a foot switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a button-type magnetoelectric device embodiment 1 of the present invention when the spring is in a natural state;

[0019] Figure 2 This is a structural schematic diagram of a button-type magnetoelectric device embodiment 1 of the present invention when the spring is in a compressed state;

[0020] Figure 3 This is a structural schematic diagram of a button-type magnetoelectric device embodiment 2 of the present invention when the spring is in a natural state;

[0021] Figure 4 This is a structural schematic diagram of a button-type magnetoelectric device embodiment 2 of the present invention when the spring is in a compressed state.

[0022] Explanation of the numbers in the schematic diagram: 1. Coil; 2. Permanent magnet; 3. Spring; 4. First magnetic conductive frame; 5. Second magnetic conductive frame; 6. Third magnetic conductive frame; 7. Mounting block; 8. Insulating plastic frame. DETAILED DESCRIPTION

[0023] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.

[0024] Example 1

[0025] Combination Figure 1 and Figure 2, A button - type magneto - electric generation device in this embodiment includes a coil 1, a permanent magnet 2 with an N - pole and an S - pole, a spring 3, a first magnetic guide 4, a second magnetic guide 5, and a third magnetic guide 6. The first magnetic guide 4, the second magnetic guide 5, and the third magnetic guide 6 are all in a U - shape. The first magnetic guide 4 is sleeved outside the second magnetic guide 5. The N - pole and S - pole of the permanent magnet 2 are fixedly connected to the middle plate of the first magnetic guide 4 and the middle plate of the second magnetic guide 5 respectively. The coil 1 is wound around the middle plate of the third magnetic guide 6. The groove surface of the third magnetic guide 6 faces the groove surface of the second magnetic guide 5. The third magnetic guide 6 and the second magnetic guide 5 can move relative to each other along the length direction of the middle plate. Among them, the moving part is controlled to reset by the spring 3. When the spring 3 is in the natural state, the left side plate of the third magnetic guide 6 is in contact and conduction with the left side plate of the second magnetic guide 5, and the right side plate of the third magnetic guide 6 is in contact and conduction with the right side plate of the first magnetic guide 4. When the spring 3 is in the compressed state, the left side plate of the third magnetic guide 6 is in contact and conduction with the left side plate of the first magnetic guide 4, and the right side plate of the third magnetic guide 6 is in contact and conduction with the right side plate of the second magnetic guide 5. The specific structure for the third magnetic guide 6 and the second magnetic guide 5 to move relative to each other along the length direction of the middle plate is as follows: The first magnetic guide 4 and the second magnetic guide 5 are both fixedly arranged, the third magnetic guide 6 is movably arranged, an immovable insulating plastic frame 8 is sleeved outside the middle plate of the third magnetic guide 6, and the insulating plastic frame 8 can move relative to the third magnetic guide 6. The coil 1 is wound around the insulating plastic frame 8. One end of the spring 3 is fixedly connected to the side plate of the third magnetic guide 6, and the other end of the spring 3 is fixedly connected to the immovable mounting block 7. The left side plate of the third magnetic guide 6 is located between the left side plate of the second magnetic guide 5 and the left side plate of the first magnetic guide 4, and the right side plate of the third magnetic guide 6 is located between the right side plate of the second magnetic guide 5 and the right side plate of the first magnetic guide 4.

[0026] The working principle and working process of a button - type magneto - electric generation device in this embodiment are briefly described as follows:

[0027] For a button - type magneto - electric generation device in this embodiment, when it is in the static state, the left side plate of the second magnetic guide is in contact and conduction with the left side plate of the third magnetic guide, the right side plate of the third magnetic guide is in contact and conduction with the right side plate of the first magnetic guide, the middle plate of the first magnetic guide is conducted through the permanent magnet with the middle plate of the second magnetic guide. The magnetic lines of force emitted by the permanent magnet pass through the middle plate of the second magnetic guide, the left side plate of the second magnetic guide, the left side plate of the third magnetic guide, the middle plate of the third magnetic guide, the right side plate of the third magnetic guide, the right side plate of the first magnetic guide, and the middle plate of the first magnetic guide in sequence and then enter the permanent magnet, forming a closed magnetic circuit. Since the coil is wound around the middle plate of the third magnetic guide, the magnetic flux passing through the coil is maximized.

[0028] When power generation is required, the third magnetic frame is manually pressed to compress the spring, the right side plate of the third magnetic frame contacts and conducts with the right side plate of the second magnetic frame, the left side plate of the third magnetic frame contacts and conducts with the left side plate of the first magnetic frame, the middle plate of the first magnetic frame conducts with the middle plate of the second magnetic frame through the permanent magnet, and the magnetic lines of force emitted by the permanent magnet pass through the middle plate of the second magnetic frame, the right side plate of the second magnetic frame, the right side plate of the third magnetic frame, the middle plate of the third magnetic frame, the left side plate of the third magnetic frame, the left side plate of the first magnetic frame, and the middle plate of the first magnetic frame in turn and enter the permanent magnet to form a closed magnetic circuit. Since the direction of the magnetic lines of force passing through the coil changes in the opposite direction, according to the law of electromagnetic induction, the change of the magnetic lines of force generates an induced current in the coil; when the external force disappears, it is reset to the initial state under the action of the elastic force of the spring, and the direction of the magnetic lines of force passing through the coil is reversed again, and the induced current continues to be generated in the coil; the second magnetic frame is pressed and released repeatedly to continuously generate electrical energy.

[0029] Example 2

[0030] Combination Figure 3 and Figure 4 The basic structure of a button-type magnetoelectric device in this embodiment is the same as that in Embodiment 1, except that the side plate end faces of the third magnetic frame 6, the side plate end faces of the second magnetic frame 5 and the side plate end faces of the first magnetic frame 4 are all arranged flush, so that the third magnetic frame will not collide with the first magnetic frame 4 and the second magnetic frame 5 when moving left and right, thereby reducing noise.

[0031] Example 3

[0032] The basic structure of a button-type magnetoelectric device in this embodiment is the same as that in Embodiment 1, except that: the third magnetic frame 6 is fixedly arranged, the first magnetic frame 4, the second magnetic frame 5 and the permanent magnet 2 can be movably arranged, one end of the spring 3 is fixedly connected to the side plate of the first magnetic frame 4, and the other end of the spring 3 is fixedly connected to the fixed mounting block 7.

[0033] The button-type magnetoelectric device of the present invention has a simple structure, a simple magnetic circuit, and is easy to process. Since the coil, spring, permanent magnet, and magnetic conductive frame in the entire structure are all placed along the pressing direction, the area occupied by the pressing direction is much larger than the area occupied perpendicular to the pressing direction while ensuring the number of coil windings. The device is suitable for making a button-type switch such as a foot switch.

[0034] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

Claims

1. A button-type magnetoelectric device, comprising a coil (1) and a permanent magnet (2) having an N pole and an S pole, characterized in that: It further includes a spring (3), a first magnetic conduction frame (4), a second magnetic conduction frame (5) and a third magnetic conduction frame (6). The first magnetic conduction frame (4), the second magnetic conduction frame (5) and the third magnetic conduction frame (6) are all in a U shape. The first magnetic conduction frame (4) is sleeved outside the second magnetic conduction frame (5). The N pole and the S pole of the permanent magnet (2) are fixedly connected to the middle plate of the first magnetic conduction frame (4) and the middle plate of the second magnetic conduction frame (5) respectively. The coil (1) is wound around the third magnetic conduction frame (6). The groove surface of the third magnetic conduction frame (6) faces the groove surface of the second magnetic conduction frame (5). The third magnetic conduction frame (6) and the second magnetic conduction frame (5) can move relatively along the length direction of the middle plate. The moving part is controlled to reset by the spring (3). When the spring (3) is in the natural state, the left side plate of the third magnetic conduction frame (6) contacts and conducts with the left side plate of the second magnetic conduction frame (5), and the right side plate of the third magnetic conduction frame (6) contacts and conducts with the right side plate of the first magnetic conduction frame (4). When the spring (3) is in the compressed state, the left side plate of the third magnetic conduction frame (6) contacts and conducts with the left side plate of the first magnetic conduction frame (4), and the right side plate of the third magnetic conduction frame (6) contacts and conducts with the right side plate of the second magnetic conduction frame (5).

2. A button-type magnetoelectric device according to claim 1, characterized in that: The first magnetic conduction frame (4) and the second magnetic conduction frame (5) are both fixedly arranged, and the third magnetic conduction frame (6) is movably arranged. One end of the spring (3) is fixedly connected to the side plate of the third magnetic conduction frame (6), and the other end of the spring (3) is fixedly connected to the fixed mounting block (7).

3. A button-type magnetoelectric device according to claim 1, characterized in that: The left side plate of the third magnetic conduction frame (6) is located between the left side plate of the second magnetic conduction frame (5) and the left side plate of the first magnetic conduction frame (4), and the right side plate of the third magnetic conduction frame (6) is located between the right side plate of the second magnetic conduction frame (5) and the right side plate of the first magnetic conduction frame (4).

4. A button-type magnetoelectric device according to claim 1, characterized in that: The end faces of the two side plates of the third magnetic conduction frame (6), the end faces of the two side plates of the second magnetic conduction frame (5), and the end faces of the two side plates of the first magnetic conduction frame (4) are all flush.

5. A button-type magnetoelectric device according to claim 2, characterized in that: An immovable insulating plastic frame (8) is sleeved outside the middle plate of the third magnetic conduction frame (6). The insulating plastic frame (8) and the third magnetic conduction frame (6) can move relatively. The coil (1) is wound around the insulating plastic frame (8).

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