Novel solid-solid friction and electromagnetic composite generator

Abstract

The utility model provides a novel solid-solid friction and electromagnetic composite generator. The structure of the novel solid-solid friction and electromagnetic composite generator comprises a power generation pipe body, a plurality of friction balls, an external induction electrode and two groups of electromagnetic power generation modules with the same structure, the power generation pipe body is of a hollow tubular structure with the two ends sealed, and the friction ball is arranged in the power generation pipe body. The external induction electrode is arranged on the outer wall of the power generation tube body; the two electromagnetic power generation modules are arranged at the left and right ends of the power generation pipe body respectively. Each electromagnetic power generation module comprises a magnet, an insulating support frame and an elastic telescopic piece which are arranged in a power generation pipe body, and a coil which is wound on the outer wall of the power generation pipe body; the magnet is fixedly arranged on the insulating support frame; two ends of the elastic telescopic piece are fixedly connected with one end of the power generation pipe body and one side of the magnet respectively; according to the utility model, a solid-solid friction nanometer power generation technology and an electromagnetic induction technology are simultaneously and organically combined, so that the whole composite generator has a wider working frequency and is suitable for wider working scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of wave energy power generation, and more specifically, to a novel solid-solid friction and electromagnetic composite generator. Background Art

[0002] The rapidly developing modern society has an ever-increasing demand for energy. While traditional fossil fuels still play a significant role in today's energy use, their inherent non-renewable nature and high carbon emissions make them difficult to meet the energy needs of future social development. To better promote social development and meet future energy needs, the development and utilization of renewable energy sources are gaining increasing attention. Ocean wave energy, as an important renewable energy source, holds enormous potential for development and utilization due to its high energy density, wide distribution range, and clean, pollution-free nature.

[0003] Traditional hydroelectric power stations primarily rely on electromagnetic generators, which generate current through the principle of electromagnetic induction, using conductors to cut through magnetic flux lines. Electromagnetic generators are widely used on land to harvest the potential energy of river water due to their suitability for collecting high-frequency mechanical energy, high output current, and low load. Hydroelectric power generation systems require an energy conversion device to convert the gravitational potential energy of the water into mechanical energy, which is then converted into electrical energy by electromagnetic generators. While electromagnetic generators can efficiently convert mechanical energy into electrical energy, their mechanical systems are relatively complex. Compared to terrestrial environments, the marine environment is more humid, corrosive, and has harsher natural conditions. Furthermore, the low frequency of wave motion in the ocean (typically less than 5 Hz) makes traditional electromagnetic power generation systems difficult to directly apply to ocean wave harvesting.

[0004] The emergence of the triboelectric nanogenerator (TENG) in 2012 provided a novel approach for efficiently harvesting ocean wave energy. The operating principle of a TENG is triboelectric charging and electrostatic induction. Initial TENGs utilize two different polymers as contact friction layers. When the two layers rub against each other, charge transfer occurs, with the surfaces of the different polymer layers acquiring opposite charges. Electrostatic induction then induces charges in the electrodes on either side, generating an electrical signal in the circuit between the two electrodes. This friction converts low-frequency mechanical motion into an AC signal using a contact-separation mode. Due to its simple structure and low operating frequency, TENGs can effectively convert low-frequency mechanical energy from the environment into electrical energy, attracting the attention of numerous researchers. With the continuous advancement of technology, the types of TENGs have continued to expand. Based on their structure, they can be categorized as contact-separation TENGs, single-electrode TENGs, horizontal sliding TENGs, and independent-layer TENGs.

[0005] Different structures of triboelectric nanogenerators (TENGs) can be applied in various environments. In recent years, researchers have designed various TENG structures for harvesting ocean wave energy. For example, deionized water is encapsulated in a PTFE (polytetrafluoroethylene) tube, and a conductive electrode is attached to the outer surface of the PTFE to create a liquid-solid triboelectric nanogenerator. This TENG uses two materials with significantly different electronegativity—polytetrafluoroethylene (PTFE) and water—as the contact friction layer, and conductive copper tape as the sensing electrode. When the water in the PTFE tube oscillates back and forth under the influence of waves, an alternating current is generated at the sensing electrode. However, the inherent high impedance and low current characteristics of the TENG result in a high instantaneous output voltage, reaching nearly 100V, but a very low instantaneous current of only about 1μA. Furthermore, the TENG's low operating frequency limits its application. Utility Model Content

[0006] In order to overcome the defect that most of the friction nanogenerators in the above-mentioned prior art are only suitable for low-frequency working scenarios, the utility model provides a new solid-solid friction and electromagnetic composite generator, which combines solid-solid friction nanopower generation technology and electromagnetic induction technology through ingenious structural design, so that the advantages of the two complement each other, expands the use scenarios of the generator, and enables it to be applied to high-frequency working scenarios such as high-frequency mechanical swings in the collection environment.

[0007] In order to solve the above technical problems, the technical solutions of the present utility model are as follows:

[0008] A novel solid-solid friction and electromagnetic composite generator comprises: a generator tube, a plurality of friction balls, an external induction electrode and two sets of electromagnetic power generation modules with the same structure;

[0009] The generator tube is a hollow tubular structure sealed at both ends. The friction ball is disposed inside the generator tube, and the difference in electronegativity between the friction ball and the generator tube is greater than or equal to a preset threshold. The external induction electrode is disposed on the outer wall of the generator tube. Two sets of electromagnetic power generation modules are disposed on the left and right ends of the generator tube, respectively.

[0010] Each electromagnetic power generation module comprises: a magnet, an insulating support frame, an elastic expansion member, and a coil; the magnet is fixedly mounted on the insulating support frame, and the two ends of the elastic expansion member are respectively fixedly connected to one end of a power generation tube body and one side of the magnet; the magnet, insulating support frame, and elastic expansion member are all disposed inside the power generation tube body, and the coil is wound around the outer wall of the power generation tube body;

[0011] When the solid-solid friction and electromagnetic composite generator swings back and forth due to wave energy, the friction ball rolls left and right inside the generator tube and rubs against the generator tube to generate charge transfer. The external induction electrode induces an induced charge, which is then led out through an external wire directly connected to the external induction electrode to generate alternating current, thereby achieving solid-solid friction power generation.

[0012] At the same time, when the friction ball rolls left and right, it also pushes the insulating support frame and the magnet at one end to move along the rolling direction of the friction ball, while compressing the corresponding elastic telescopic part; when the rolling direction of the friction ball changes, the elastic telescopic part stretches and pushes the magnet and the insulating support frame to move in the opposite direction; during the movement, the magnet causes the magnetic flux of the coil to change, thereby generating alternating current in the coil and realizing electromagnetic power generation.

[0013] Preferably, the solid-solid friction and electromagnetic composite generator further comprises two end covers, which are fixedly arranged at both ends of the generator tube body and are used to seal the generator tube body;

[0014] The inner side of the end cover is connected to the elastic telescopic member.

[0015] Preferably, the material of the power generation tube body is any one of PTFE, PE, PP, PET, PDMS and PVC.

[0016] Preferably, the friction ball is a copper ball.

[0017] Preferably, the external sensing electrode is made of a conductive material; the conductive material includes any one of copper, aluminum, gold and a semiconductor material with conductive capability.

[0018] Preferably, the external sensing electrode is a conductive copper tape.

[0019] Preferably, the magnet is a neodymium iron boron magnet.

[0020] Preferably, the magnet is circular or square in shape.

[0021] Preferably, the elastic telescopic member is a spring.

[0022] Preferably, the coil is a conductive copper coil.

[0023] Compared with the prior art, the beneficial effects of the technical solution of the utility model are:

[0024] The utility model provides a novel solid-solid friction and electromagnetic composite generator, the structure of which includes: a generator tube body, a plurality of friction balls, an external induction electrode and two groups of electromagnetic power generation modules with the same structure; the generator tube body is a hollow tubular structure with both ends sealed, the friction balls are arranged inside the generator tube body, and the difference in material electronegativity between the friction balls and the generator tube body is greater than or equal to a preset threshold; the external induction electrode is arranged on the outer wall of the generator tube body; the two groups of electromagnetic power generation modules are respectively arranged on the left and right ends of the generator tube body; each electromagnetic power generation module includes: a magnet, an insulating support frame, an elastic expansion member and a coil; the magnet is fixedly arranged on the insulating support frame, and the two ends of the elastic expansion member are respectively fixedly connected to one end of the generator tube body and one side of the magnet; the magnet, the insulating support frame and the elastic expansion member are all arranged inside the generator tube body, and the coil is wound on the outer wall of the generator tube body;

[0025] The solid-solid friction and electromagnetic composite generator in the present invention combines solid-solid friction nanopower generation technology and electromagnetic induction technology. Friction nanopower generation can effectively convert low-frequency mechanical energy (wave energy) into electrical energy, while outputting high voltage and low current; while electromagnetic power generation can provide higher current output. The organic combination of the two can not only give play to each other's advantages and maximize the power output of the composite generator, but also break the limitation of traditional friction nanogenerators that are only suitable for collecting low-frequency mechanical energy, so that the overall composite generator has a wider operating frequency and is suitable for a wider range of working scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural diagram of a new type of solid-solid friction and electromagnetic composite generator provided in Example 1.

[0027] Figure 2 Schematic diagram of a new type of solid-solid friction and electromagnetic composite generator provided in Example 2.

[0028] Figure 3 This is the solid-solid friction nanopower generation flow chart provided in Example 2.

[0029] Figure 4 Electromagnetic power generation flow chart provided in Example 2.

[0030] Figure 5 Connection diagram of multiple magnets in the electromagnetic power generation module provided in Example 2.

[0031] Figure 6 Power supply integration diagram of the multiple solid-solid friction and electromagnetic composite generator provided in Example 2. 1-power generation pipe body; 2-friction ball body; 3-external induction electrode; 4-electromagnetic power generation module; 41-magnet; 42-insulating support frame; 43-elastic expansion piece; 44-coil; 5-end cover. DETAILED DESCRIPTION

[0032] The drawings are only for illustrative purposes and cannot be understood as limiting the patent;

[0033] In order to better illustrate the embodiments, some components in the drawings may be omitted, enlarged or reduced, and do not represent the actual product size;

[0034] It is understandable to some skilled persons in the art that some known structures and their descriptions in the drawings may be omitted.

[0035] The technical scheme of the utility model will be further described below in combination with the drawings and embodiments.

[0036] Example 1

[0037] As shown in the drawings, the present embodiment provides a new solid-solid friction and electromagnetic composite generator, which comprises a power generation pipe body 1, a plurality of friction ball bodies 2, an external induction electrode 3 and two groups of electromagnetic power generation modules 4 with the same structure. Figure 1 The power generation pipe body 1 is a hollow tubular structure with sealed ends, the friction ball bodies 2 are arranged inside the power generation pipe body 1, and the difference between the electronegativity of the friction ball bodies 2 and the power generation pipe body 1 is greater than or equal to a preset threshold value; the external induction electrode 3 is arranged on the outer wall of the power generation pipe body 1; the two groups of electromagnetic power generation modules 4 are arranged at the left and right ends of the power generation pipe body 1 respectively.

[0038] Each electromagnetic power generation module 4 comprises a magnet 41, an insulating support frame 42, an elastic expansion piece 43 and a coil 44; the magnet 41 is fixedly arranged on the insulating support frame 42, and the two ends of the elastic expansion piece 43 are fixedly connected to one end of the power generation pipe body 1 and one side of the magnet 41 respectively; the magnet 41, the insulating support frame 42 and the elastic expansion piece 43 are arranged inside the power generation pipe body 1, and the coil 44 is wound around the outer wall of the power generation pipe body 1.

[0039]

[0040] ​When the solid-solid friction and electromagnetic composite generator swings back and forth due to wave energy, the friction ball 2 rolls left and right inside the generator tube 1 and rubs against the generator tube 1 to generate charge transfer. The external induction electrode 3 induces an induced charge, which is then led out through an external wire directly connected to the external induction electrode 3 to generate alternating current, thereby achieving solid-solid friction power generation.

[0041] At the same time, when the friction ball 2 rolls left and right, it also pushes the insulating support frame 42 and the magnet 41 at one end to move along the rolling direction of the friction ball 2, while compressing the corresponding elastic telescopic member 43; when the rolling direction of the friction ball 2 changes, the elastic telescopic member 43 stretches and pushes the magnet 41 and the insulating support frame 42 to move in opposite directions; during the movement, the magnet 41 causes the magnetic flux of the coil 44 to change, thereby generating alternating current in the coil 44 to achieve electromagnetic power generation.

[0042] In the specific implementation process, Figure 1 In this embodiment, the main body of the solid-solid friction and electromagnetic composite generator is tubular and can be divided into two parts. The middle part is the solid-solid friction nanogenerator, and the parts symmetrically distributed on both sides are electromagnetic generators.

[0043] When the solid-solid friction and electromagnetic composite generator swings back and forth due to wave energy (i.e., it reciprocates left and right along the axial direction of the generator tube 1), the friction ball 2 rolls left and right inside the generator tube 1 and rubs against the generator tube 1, generating charge transfer. The external induction electrode 3 induces induced charges, which are then led out through an external wire directly connected to the external induction electrode 3 to generate alternating current, thus achieving solid-solid friction power generation.

[0044] When the friction ball 2 rolls left and right, it also pushes the insulating support frame 42 and the magnet 41 at one end to move in the rolling direction of the friction ball 2, while compressing the corresponding elastic member 43. When the rolling direction of the friction ball 2 changes, the elastic member 43 extends and pushes the magnet 41 and the insulating support frame 42 to move in the opposite direction. During the movement of the magnet 41, the magnetic flux of the coil 44 changes, thereby generating alternating current in the coil 44, realizing electromagnetic power generation.

[0045] This embodiment combines friction nano-power generation with electromagnetic generators so that the two can complement each other's strengths, thereby better collecting wave energy in the ocean.

[0046] Example 2

[0047] like Figure 2 As shown, this embodiment provides a novel solid-solid friction and electromagnetic composite generator, comprising: a power generation tube 1, a plurality of friction balls 2, an external induction electrode 3 and two sets of electromagnetic power generation modules 4 with the same structure;

[0048] The power generation tube body 1 is a hollow tubular structure with both ends sealed, the friction ball 2 is arranged inside the power generation tube body 1, and the electronegativity difference between the friction ball 2 and the material of the power generation tube body 1 is greater than or equal to a preset threshold; the external induction electrode 3 is arranged on the outer wall of the power generation tube body 1; two groups of the electromagnetic power generation modules 4 are arranged at the left and right ends of the power generation tube body 1 respectively;

[0049] Each of the electromagnetic power generation modules 4 comprises a magnet 41, an insulating support frame 42, an elastic expansion piece 43 and a coil 44; the magnet 41 is fixedly arranged on the insulating support frame 42, and the two ends of the elastic expansion piece 43 are fixedly connected with one end of the power generation tube body 1 and one side of the magnet 41 respectively; the magnet 41, the insulating support frame 42 and the elastic expansion piece 43 are all arranged inside the power generation tube body 1, and the coil 44 is arranged on the outer wall of the power generation tube body 1;

[0050] When the solid-solid friction and electromagnetic composite generator reciprocates left and right due to wave energy, the friction ball 2 rolls left and right in the power generation tube body 1 and generates charge transfer by mutual friction with the power generation tube body 1, the external induction electrode 3 induces induction charges, the induction charges are led out through the external lead directly connected with the external induction electrode 3, alternating current is generated, and solid-solid friction power generation is realized;

[0051] Meanwhile, when the friction ball 2 rolls left and right, the insulating support frame 42 and the magnet 41 at one end are also moved along the rolling direction of the friction ball 2, while the corresponding elastic expansion piece 43 is compressed; when the rolling direction of the friction ball 2 changes, the elastic expansion piece 43 is elongated and pushes the magnet 41 and the insulating support frame 42 to move in the opposite direction; the magnet 41 changes the magnetic flux of the coil 44 in the movement process, thereby generating alternating current in the coil 44, and electromagnetic power generation is realized;

[0052] The solid-solid friction and electromagnetic composite generator further comprises two end covers 5, the end covers 5 are fixedly arranged at the two ends of the power generation tube body 1 and used for sealing the power generation tube body 1;

[0053] The inner side of the end cover 5 is connected with the elastic expansion piece 43;

[0054] The material of the power generation tube body 1 adopts any one of PTFE, PE, PP, PET, PDMS and PVC, and the power generation tube body 1 in the embodiment is a PTFE tube;

[0055] The friction ball 2 is specifically a copper ball;

[0056] The external induction electrode 3 is a conductive material; the conductive material comprises any one of copper, aluminum, gold and a semiconductor material with conductive capacity; in the embodiment, the external induction electrode 3 is specifically a conductive copper adhesive tape;

[0057] The magnet 41 is specifically a neodymium iron boron magnet, and is round or square in shape;

[0058] The elastic expansion member 43 is specifically a spring;

[0059] The coil 44 is specifically a conductive copper coil.

[0060] In the specific implementation process, Figure 2 In this embodiment, the solid-solid friction and electromagnetic composite generator body is tubular and can be divided into two parts. The middle part is the solid-solid friction nanogenerator, which generates alternating current and outputs it to the load through the external induction electrode 3 connected to the wire ( Figure 2 The "R" in the figure represents an external load); the symmetrically distributed parts on both sides are electromagnetic generators, and the AC power generated by them is directly output to the load through the coil 44 connecting the wires;

[0061] The middle part is a solid-solid triboelectric nanogenerator, consisting of several solid copper balls with a diameter of 15 mm, PTFE tubes (20 mm in diameter, 1 mm in thickness, and 60 to 200 mm in length), and conductive copper tape (0.1 mm in thickness). The copper balls and PTFE tubes perform solid-solid contact triboelectric generation, and the conductive copper tape is attached to the outside of the PTFE tubes as sensing electrodes. Figure 3 The figure shows the power generation flow chart of the solid-solid triboelectric nanogenerator. When the tubular solid-solid triboelectric nanogenerator is subjected to external mechanical force (waves), the copper ball in the PTFE tube will roll and generate friction with the inner side of the PTFE tube. Under the action of frictional electrification, and due to the different electronegativity of the two contact materials, the copper ball will lose electrons and become positively charged, while the PTFE tube will receive the transferred electrons and become negatively charged. Since PTFE (polytetrafluoroethylene) is a high molecular polymer with excellent chemical stability and electrical insulation, and because PTFE has high bond energy and a highly ordered structure, the electrons received by PTFE generally do not cause the original structure to be disrupted, so it will not easily lose electrons in a short period of time. When the positively charged copper ball rolls in the PTFE tube, due to the effect of electrostatic induction, the negative charge on the PTFE tube wall close to the copper ball will be electrostatically shielded, while the negative charge on the PTFE tube wall away from the copper ball will be less affected. This will lead to an uneven distribution of positive charges induced on the electrodes on both sides of the tube, causing charge transfer in the external circuit between the two electrodes, generating an AC signal.

[0062] The two side parts are based on the electromagnetic induction generator as the main structure. The electromagnetic induction generator on each side is composed of a circular NdFeB magnet with a diameter of less than 20mm (the NdFeB magnet with a diameter of 12mm and a thickness of 2mm is selected in this embodiment), a copper coil (the copper wire diameter is 0.1mm), a circular support frame with a diameter of 16 to 18mm (i.e., an insulating support frame 42, used to prevent the NdFeB magnet and the copper ball from directly contacting and affecting the power generation) and a spring (with a size of 0.5mm wire diameter, 12mm outer diameter, and 40mm length, two in each); wherein the circular NdFeB magnet is fixed to the support frame and connected to the spring at the same time, and then the connected circular magnet, support frame and spring are placed on both sides of the PTFE tube, and finally, the copper coil is wrapped around the left and right sides of the PTFE tube; Figure 4 The figure shows the power generation flow chart of the electromagnetic generator. When the copper ball moves to the left (right) inside the PTFE tube, it pushes the support frame and the circular magnet to the left (right), compressing the spring connected to it. When the direction of the copper ball's movement changes, the spring changes from a compressed state to an extended state, pushing the support frame and the circular magnet to the right (left). Due to the principle of electromagnetic induction, the movement of the magnet changes the magnetic flux within the external copper coil, generating current in the copper coil.

[0063] In addition, the number of copper coil turns can be increased, or multiple NdFeB magnets (such as Figure 5 As shown), to further improve the power and efficiency of electromagnetic power generation;

[0064] like Figure 6 As shown, multiple solid-solid friction and electromagnetic composite generators can be integrated, and the output AC power can be rectified and filtered to power various loads, thereby obtaining a higher power output to meet the power needs of various scenarios.

[0065] The solid-solid friction and electromagnetic composite generator provided in this embodiment combines solid-solid friction nanopower generation technology and electromagnetic induction technology. Friction nanopower generation can effectively convert low-frequency mechanical energy (wave energy) into electrical energy, while outputting high voltage and low current; while electromagnetic power generation can provide higher current output. The organic combination of the two can not only give play to each other's advantages and maximize the power output of the composite generator, but also break the limitation of traditional friction nanogenerators that are only suitable for collecting low-frequency mechanical energy, so that the overall composite generator has a wider operating frequency and is suitable for a wider range of working scenarios.

[0066] The same or similar reference numerals correspond to the same or similar components;

[0067] The terms used in the drawings to describe positional relationships are for illustrative purposes only and should not be construed as limiting this patent;

[0068] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A new type of solid-solid friction and electromagnetic composite generator, characterized in that: include: A power generation tube (1), a plurality of friction balls (2), an external induction electrode (3), and two sets of electromagnetic power generation modules (4) with the same structure; The power generation tube body (1) is a hollow tubular structure sealed at both ends; the friction ball (2) is arranged inside the power generation tube body (1), and the difference in electronegativity between the friction ball (2) and the power generation tube body (1) is greater than or equal to a preset threshold; the external induction electrode (3) is arranged on the outer wall of the power generation tube body (1); and two groups of electromagnetic power generation modules (4) are respectively arranged at the left and right ends of the power generation tube body (1); Each electromagnetic power generation module (4) comprises: a magnet (41), an insulating support frame (42), an elastic telescopic member (43) and a coil (44); the magnet (41) is fixedly arranged on the insulating support frame (42), and the two ends of the elastic telescopic member (43) are respectively fixedly connected to one end of the power generation tube body (1) and one side of the magnet (41); the magnet (41), the insulating support frame (42) and the elastic telescopic member (43) are all arranged inside the power generation tube body (1), and the coil (44) is wound around the outer wall of the power generation tube body (1); When the solid-solid friction and electromagnetic composite generator sways back and forth due to wave energy, the friction ball (2) rolls left and right inside the power generation tube (1) and rubs against the power generation tube (1) to generate charge transfer, and induced charges are induced on the external induction electrode (3). The induced charges are led out through an external wire directly connected to the external induction electrode (3) to generate alternating current, thereby realizing solid-solid friction power generation; At the same time, when the friction ball (2) rolls left and right, it also pushes the insulating support frame (42) and the magnet (41) at one end to move along the rolling direction of the friction ball (2), while compressing the corresponding elastic telescopic member (43); when the rolling direction of the friction ball (2) changes, the elastic telescopic member (43) stretches and pushes the magnet (41) and the insulating support frame (42) to move in opposite directions; during the movement of the magnet (41), the magnetic flux of the coil (44) changes, thereby generating alternating current in the coil (44) to achieve electromagnetic power generation.

2. A novel solid-solid friction and electromagnetic composite generator according to claim 1, characterized in that: The solid-solid friction and electromagnetic composite generator further comprises two end covers (5), wherein the end covers (5) are fixedly arranged at both ends of the generator tube (1) and are used to seal the generator tube (1); The inner side of the end cover (5) is connected to the elastic telescopic member (43).

3. The novel solid-solid friction and electromagnetic composite generator according to claim 1, characterized in that: The material of the power generation tube body (1) is any one of PTFE, PE, PP, PET, PDMS and PVC.

4. The novel solid-solid friction and electromagnetic composite generator according to claim 1, characterized in that: The friction ball (2) is specifically a copper ball.

5. The novel solid-solid friction and electromagnetic composite generator according to claim 1, characterized in that: The external sensing electrode (3) is made of a conductive material; the conductive material includes any one of copper, aluminum, gold and a semiconductor material with conductive capability.

6. The novel solid-solid friction and electromagnetic composite generator according to claim 4, characterized in that: The external sensing electrode (3) is specifically a conductive copper tape.

7. The novel solid-solid friction and electromagnetic composite generator according to claim 1, characterized in that: The magnet (41) is specifically a neodymium iron boron magnet.

8. A novel solid-solid friction and electromagnetic composite generator according to claim 1 or 7, characterized in that: The shape of the magnet (41) is circular or square.

9. The novel solid-solid friction and electromagnetic composite generator according to claim 1, characterized in that: The elastic telescopic member (43) is specifically a spring.

10. The novel solid-solid friction and electromagnetic composite generator according to claim 1, characterized in that: The coil (44) is specifically a conductive copper coil.

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