Repulsive magnetic suspension variable resonance electromagnetic energy harvester

Abstract

The utility model discloses a repulsive magnetic suspension variable resonance electromagnetic energy harvester, which comprises a main body fixing piece, and the main body fixing piece comprises an upper fixed magnet fixing bolt, a packaging tube, a main body connecting bolt, an upper fixed magnet, a lower fixed magnet fixing bolt, a lower fixed magnet, a lower end cover and an upper end cover. Coils are uniformly distributed on the outer side of the packaging tube, a suspension device is arranged in the middle of the interior of the packaging tube, and the suspension device is used for enabling the suspension device to suspend in the center of the interior of the packaging tube through magnetic field repulsive force. The utility model discloses a repulsive magnetic suspension variable resonance electromagnetic energy harvester. The suspension device is suspended between the upper fixed magnet and the lower fixed magnet through magnetic repulsion, so that the maximum relative position difference under excitation is generated when the suspension device and the external copper enameled coil are subjected to external excitation, and the external copper enameled coil of the packaging pipe fully cuts magnetic induction lines to generate induced electromotive force.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy technology related technical field, concretely is a repulsion magnetic suspension's variable resonance electromagnetic energy trap. BACKGROUND

[0002] In recent years, with the rapid development of microelectronic technology, there are a large number of wireless sensors and low-power electronic components in the process of life and production, how to power these wireless sensors and low-power electronic components in an environmentally friendly and efficient manner has attracted widespread attention, and traditional chemical batteries have a series of problems such as low energy density, short service life, environmental pollution and inconvenience to replace.

[0003] Therefore, the utility model designs a kind of repulsion magnetic suspension's variable resonance electromagnetic energy trap using environmental vibration, and vibration widely exists in engineering production process, for example, the bogie of train running on rail and track, bridge passed by train, the running of pump and motor, machine tool machining workpiece will generate vibration. We can recycle the mechanical energy generated by these vibrations and convert it into electrical energy to power small low-power devices, thereby reducing the energy consumption burden of engineering production equipment. The repulsion magnetic suspension's variable resonance electromagnetic energy trap proposed in the utility model obtains vibration from external vibration source, generates maximum relative displacement difference with external copper enameled coil through suspension device, so that it fully cuts the magnetic induction line to generate induced electromotive force, thereby converting mechanical energy in the environment into electrical energy. UTILITY MODEL CONTENT

[0004] To solve the problems proposed in the above technical background, the utility model provides a repulsion magnetic suspension's variable resonance electromagnetic energy trap, which has the characteristics of green, environmental protection, high energy density and long service life.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a repulsion magnetic suspension's variable resonance electromagnetic energy trap, comprising a main body fixing member, the main body fixing member includes an upper permanent magnet fixing bolt, an encapsulation tube, a main body connecting bolt, an upper permanent magnet, a lower permanent magnet fixing bolt, a lower permanent magnet, a lower end cover and an upper end cover;

[0006] The encapsulation tube is provided as a tubular structure with openings at both upper and lower ends, and the upper and lower ends of the encapsulation tube are sealed by a rectangular upper end cover and a lower end cover, and four main body connecting bolts are distributed around the outer periphery of the upper end cover and the lower end cover for connection, and nuts are arranged at the upper and lower ends of the main body connecting bolts for fixation, the bottom of the upper end cover is provided with an upper permanent magnet connected by an upper permanent magnet fixing bolt, and the upper side of the lower end cover is provided with a lower permanent magnet connected by a lower permanent magnet fixing bolt;

[0007] The coil is uniformly distributed on the outer side of the packaging tube, and a suspension device is arranged at the middle position in the inner side of the packaging tube, which is used for suspending in the center of the inner side of the packaging tube by magnetic field repulsion.

[0008] Preferably, the coil is made of copper enameled wire, and is uniformly wound on the outer side of the packaging tube.

[0009] Preferably, the suspension device comprises an upper permanent magnet, a first steel pole piece, a middle permanent magnet, a second steel pole piece and a lower permanent magnet, which are arranged in sequence from top to bottom and concentrically, and the middle of the five is provided with a through hole with the same size.

[0010] Preferably, the upper permanent magnet, the first steel pole piece, the middle permanent magnet, the second steel pole piece and the lower permanent magnet are connected by a suspension device connecting bolt, and the suspension device connecting bolt is arranged in the middle through hole.

[0011] Preferably, the upper permanent magnet and the middle permanent magnet and the upper permanent magnet are arranged in the same pole opposite arrangement, and the lower permanent magnet and the middle permanent magnet and the lower permanent magnet are arranged in the same pole opposite arrangement.

[0012] Preferably, the upper permanent magnet, the middle permanent magnet and the lower permanent magnet have the same shape structure, and the three are arranged as 12 identical fan-shaped permanent magnet pieces, and the arrangement mode of the 12 identical fan-shaped permanent magnet pieces is Halbach array.

[0013] Compared with the prior art, the beneficial effects of the utility model are that the repulsive magnetic suspension variable resonance electromagnetic energy trap;

[0014] 1. It is suspended between the upper and lower permanent magnets by magnetic repulsion, so that the suspension device and the external copper enameled coil produce the maximum relative position difference under the excitation, and the copper enameled coil on the outer side of the packaging tube fully cuts the magnetic induction lines to generate induced electromotive force.

[0015] 2. The arrangement mode of the permanent magnet of the middle suspension device is Halbach array, which greatly increases the magnetic induction line density of the outer side of the permanent magnet, so that the outer side generates a stronger magnetic field than the traditional array arrangement, thereby increasing the induced electromotive force generated by the copper enameled coil cutting the magnetic field.

[0016] 3. A repulsive magnetic suspension variable resonance electromagnetic energy trap converts mechanical energy generated by vibration in engineering production into electrical energy, thereby reducing the energy consumption burden of engineering production equipment.

[0017] 4. A repulsive magnetic levitation variable resonant electromagnetic energy harvester, according to different sizes and tuning frequencies, it can be used to collect mechanical energy generated by vibration in different situations, such as bridge, railway, bicycle, vehicle, etc. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic diagram of the utility model;

[0019] Figure 2 It is a main body fixing piece structure schematic diagram of the utility model;

[0020] Figure 3 It is a packaging tube and coil assembly structure schematic diagram of the utility model;

[0021] Figure 4 It is a three-dimensional structure schematic diagram of the utility model suspension device;

[0022] Figure 5 It is a main view structure schematic diagram of the utility model suspension device;

[0023] Figure 6 It is a structure schematic diagram of the utility model suspension device fan-shaped magnet magnetization direction based on the Halbach array arrangement.

[0024] In the drawing: 1, main body fixing piece; 2, suspension device; 3, upper permanent magnet fixing bolt; 4, packaging tube; 5, coil; 6, main body connecting bolt; 7, upper permanent magnet; 8, lower permanent magnet fixing bolt; 9, lower permanent magnet; 10, lower end cover; 11, upper end cover; 12, suspension device connecting bolt; 13, upper permanent magnet; 14, first steel pole piece; 15, intermediate permanent magnet; 16, second steel pole piece; 17, lower permanent magnet; 18, fan-shaped permanent magnet piece. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] Please refer to Figures 1-6 The utility model provides a technical scheme: a repulsive magnetic levitation variable resonant electromagnetic energy harvester, including main body fixing piece 1, main body fixing piece 1 includes upper permanent magnet fixing bolt 3, packaging tube 4, main body connecting bolt 6, upper permanent magnet 7, lower permanent magnet fixing bolt 8, lower permanent magnet 9, lower end cover 10 and upper end cover 11;

[0027] The packaging tube 4 is provided as a tubular structure with openings at the upper and lower ends, and the upper and lower ends of the packaging tube 4 are sealed by the rectangular upper end cover 11 and the lower end cover 10, and the outer periphery of the upper end cover 11 and the lower end cover 10 is provided with four main body connecting bolts 6 for connection, and the upper and lower ends of the main body connecting bolt 6 are provided with nuts for fixation, and the bottom of the upper end cover 11 is provided with an upper permanent magnet 7 connected by an upper permanent magnet fixing bolt 3, and the upper side of the lower end cover 10 is provided with a lower permanent magnet 9 connected by a lower permanent magnet fixing bolt 8.

[0028] The coil 5 is uniformly distributed on the outer side of the packaging tube 4, and the inside of the coil 5 is provided with a suspension device 2, which is used to suspend in the center of the packaging tube 4 by magnetic repulsion.

[0029] The coil 5 is made of copper enameled wire, and is uniformly wound on the outside of the packaging tube 4.

[0030] The application provides a repulsive magnetic suspension variable resonance electromagnetic energy trap, which can fully collect mechanical energy generated by vibration in the environment and convert it into electrical energy. Specifically, during use, the main top fixing part 1 is installed in a suitable position through the lower end cover 10. During use, the upper and lower positions of the suspension device 2 are provided with upper and lower permanent magnets 7 and 9 that repel each other. Thus, when vibration occurs, the lower end cover 10 drives the upper end cover 11 to vibrate through the main body connecting bolt 6. When the lower end cover 10 and the upper end cover 11 vibrate, they will drive the packaging tube 4, the upper permanent magnet 7 and the lower permanent magnet 9 to vibrate, respectively. Thus, the upper permanent magnet 7 and the lower permanent magnet 9 will generate a maximum relative displacement difference between the suspension device 2 and the coil 5 outside the packaging tube 4 due to the mutual repulsion between the upper permanent magnet 7 and the lower permanent magnet 9, so as to make the coil 5 outside the packaging tube 4 fully cut the magnetic induction lines, generate an induced electromotive force, and output a voltage.

[0031] The upper end cover 11 and the lower end cover 10 are connected by four main body connecting bolts 6 to fix the entire device. The main body fixing part can be modified according to the size and the change of the tuning frequency to improve the environmental adaptability of the energy trap.

[0032] As a further preferred embodiment of the application, according to Figures 4-6 As shown in the figure, the suspension device 2 includes an upper permanent magnet 13, a first steel pole piece 14, a middle permanent magnet 15, a second steel pole piece 16 and a lower permanent magnet 17. The upper permanent magnet 13, the first steel pole piece 14, the middle permanent magnet 15, the second steel pole piece 16 and the lower permanent magnet 17 are arranged in a concentric manner from top to bottom, and the middle of the five is provided with a through hole with the same size.

[0033] The upper permanent magnet 13, the first steel pole piece 14, the middle permanent magnet 15, the second steel pole piece 16 and the lower permanent magnet 17 are connected through the suspension device connecting bolt 12, and the suspension device connecting bolt 12 is arranged in the middle perforation of the five.

[0034] The upper permanent magnet 13 is arranged in the same polarity with the middle permanent magnet 15 and the upper permanent magnet 7, and the lower permanent magnet 17 is arranged in the same polarity with the middle permanent magnet 15 and the lower permanent magnet 9.

[0035] The upper permanent magnet 13, the middle permanent magnet 15 and the lower permanent magnet 17 have the same outer shape structure, and are arranged as 12 same fan-shaped permanent magnet pieces 18, and the arrangement mode of the 12 same fan-shaped permanent magnet pieces 18 is a Halbach array.

[0036] Specifically, in the suspension device 2, the upper permanent magnet 13 and the middle permanent magnet 15 are arranged in the same polarity, the middle permanent magnet 15 and the lower permanent magnet 17 are arranged in the same polarity, the first steel pole piece 14 is used to fill the gap between the upper permanent magnet 13 and the middle permanent magnet 15 and increase the magnetic conductivity, the second steel pole piece 16 is used to fill the gap between the middle permanent magnet 15 and the lower permanent magnet 17 and increase the magnetic conductivity, and the upper permanent magnet 13, the middle permanent magnet 15 and the lower permanent magnet 17 in the suspension device 2 are composed of 12 same fan-shaped permanent magnet pieces 18, and the arrangement mode of the fan-shaped permanent magnet pieces 18 is a Halbach array arrangement. Based on the special arrangement of the above suspension device 2, more dense magnetic induction lines and stronger magnetic fields are generated, and the induced electromotive force is improved. Since the upper permanent magnet 13 and the upper permanent magnet 7 are arranged in the same polarity, and the lower permanent magnet 17 and the lower permanent magnet 9 are arranged in the same polarity, when the external device vibrates, the coil 5 outside the packaging tube 4 can fully cut the magnetic induction lines to generate an induced electromotive force and output a voltage. The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0037] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A repulsive magnetic levitation variable-resonance electromagnetic energy harvester comprising a body fixture (1), characterized in that, The main body fixing part (1) comprises an upper fixed magnet fixing bolt (3), an encapsulation tube (4), a main body connecting bolt (6), an upper fixed magnet (7), a lower fixed magnet fixing bolt (8), a lower fixed magnet (9), a lower end cover (10) and an upper end cover (11); The encapsulation tube (4) is provided as a tubular structure with openings at the upper and lower ends and penetrates through the middle, and the upper and lower ends of the encapsulation tube (4) are provided with rectangular upper and lower end covers (11) and (10) for sealing, and the outer periphery of the upper and lower end covers (11) and (10) is provided with four main body connecting bolts (6) for connection, and the upper and lower ends of the main body connecting bolt (6) are provided with nuts for fixation, the bottom of the upper end cover (11) is provided with an upper fixed magnet (7) connected by an upper fixed magnet fixing bolt (3), and the upper side of the lower end cover (10) is provided with a lower fixed magnet (9) connected by a lower fixed magnet fixing bolt (8). The coil (5) is made of copper enameled wire, and is uniformly wound outside the encapsulation tube (4).

2. A repulsive magnetic levitation, variable-resonance electromagnetic energy harvester according to claim 1, characterized in that: The suspension device (2) comprises an upper permanent magnet (13), a first steel pole piece (14), a middle permanent magnet (15), a second steel pole piece (16) and a lower permanent magnet (17), which are arranged in sequence from top to bottom and concentrically, and the middle of each of the five is provided with a through hole with the same size.

3. A repulsive magnetic levitation, variable-resonant electromagnetic harvester according to claim 1, characterized in that: The upper permanent magnet (13), the first steel pole piece (14), the middle permanent magnet (15), the second steel pole piece (16) and the lower permanent magnet (17) are connected by a suspension device connecting bolt (12), and the suspension device connecting bolt (12) is arranged in the middle through hole of the five.

4. A repulsive magnetic levitation, variable-resonant electromagnetic harvester according to claim 3, characterized in that: The upper permanent magnet (13), the middle permanent magnet (15) and the upper fixed magnet (7) are arranged with the same polarity opposite to each other, and the lower permanent magnet (17), the middle permanent magnet (15) and the lower fixed magnet (9) are arranged with the same polarity opposite to each other.

5. A repulsive magnetic levitation, variable-resonant electromagnetic harvester according to claim 4, characterized in that: The upper permanent magnet (13), the middle permanent magnet (15) and the lower permanent magnet (17) have the same shape structure, and are provided as 12 identical fan-shaped permanent magnet pieces (18), and the arrangement mode of the 12 identical fan-shaped permanent magnet pieces (18) is Halbach array.

6. A repulsive magnetic levitation, variable-resonant electromagnetic harvester according to claim 5, characterized in that: ​

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