Self-generating fitness equipment

Abstract

The utility model relates to self-power-generation fitness equipment which comprises a fitness structure used for a user to do exercises. The generator comprises an inner stator, a rotor and an outer stator which are sequentially and concentrically arranged from inside to outside, a power generation winding is wound on the outer stator, an electromagnetic winding is wound on the inner stator, the rotor is an excitation body and is in transmission connection with the fitness structure, and when a user exercises, the fitness structure can drive the rotor to rotate relative to the inner stator and the outer stator in the preset circumferential direction; the electricity storage unit is electrically connected with the electromagnetic winding and used for magnetizing the inner stator, and the magnetized inner stator can increase the rotation resistance of the rotor rotating in the preset circumferential direction, so that the resistance borne by a user during exercise is improved, and the requirement of the user for fitness is met.

Description

Technical Field

[0001] The present application relates to the technical field of sports fitness equipment, and in particular to a self-generating fitness equipment. Background Art

[0002] With the rapid development of the sports and fitness industry, the quality requirements for dampers involved in fitness equipment are getting higher and higher. Using the principle of self-generation as an electromagnetic damper is the most scientific method. While obtaining damping force, it also obtains electrical energy to supply electricity to the fitness equipment itself, eliminating the trouble of external power supply, so that the fitness equipment can be used in places without power supply. However, during the process of self-generation of fitness equipment, if the generator is running at a low speed, the power generation will be insufficient, resulting in the damping force generated being difficult to meet the needs of fitness enthusiasts. Summary of the invention

[0003] Based on this, it is necessary to provide a self-generating fitness equipment to address the problem that when the generator is running at a low speed, the power generation is insufficient, resulting in the generated damping force being unable to meet the needs of the fitness enthusiasts.

[0004] A self-generating fitness equipment, comprising:

[0005] A fitness structure for users to exercise;

[0006] The generator comprises an inner stator, a rotor and an outer stator which are concentrically arranged in sequence from the inside to the outside, the outer stator is wound with a power generation winding, the inner stator is wound with an electromagnetic winding, the rotor is an excitation magnet and is transmission-connected to the fitness structure, and when the user exercises, the fitness structure can drive the rotor to rotate relative to the inner stator and the outer stator along the preset circumferential direction;

[0007] The power storage unit is electrically connected to the electromagnetic winding to magnetize the inner stator. The magnetized inner stator can increase the rotation resistance of the rotor when the rotor rotates along the preset circumferential direction.

[0008] In one embodiment, the rotor includes a rotor inner ring, a rotor middle layer and a rotor outer ring arranged in sequence from the inside to the outside, the rotor outer ring is an excitation magnet, the rotor middle layer is made of non-magnetic material, and the rotor inner ring is made of magnetic material.

[0009] In one of the embodiments, the rotor outer ring is composed of a plurality of permanent magnets and a plurality of magnetic conductors arranged alternately along the circumferential direction of the rotor middle layer.

[0010] In one of the embodiments, a plurality of outer magnetic poles are protruding from the inner side wall of the outer stator, the power generation winding is wound around all the outer magnetic poles, and the power generation winding is a three-phase winding.

[0011] In one embodiment, the number of the outer magnetic poles is 24;

[0012] And / or, the number of the permanent magnets on the rotor outer ring is 20, and the number of the magnetic conductors is 20.

[0013] In one embodiment, the self-generating fitness equipment further includes a rectifier, which is electrically connected to the generating winding and the power storage unit respectively, and is used to rectify the three-phase alternating current emitted by the generating winding into direct current and output it to the power storage unit.

[0014] In one embodiment, the outer wall of the inner stator is provided with a plurality of inner magnetic poles protruding in the circumferential direction, and the electromagnetic winding is wound around all the inner magnetic poles. When the inner stator is magnetized, the polarities of two adjacent inner magnetic poles are opposite.

[0015] The power storage unit is used to output direct current, the electromagnetic winding is a series circuit, and includes two external connectors, and the two external connectors are respectively connected to the positive pole and the negative pole of the power storage unit.

[0016] In one embodiment, the number of the inner magnetic poles is 12.

[0017] In one embodiment, the self-generating fitness equipment further comprises a relay control switch, which is electrically connected to the power storage unit and the electromagnetic winding respectively, and can control the connection and disconnection of the power storage unit and the electromagnetic winding.

[0018] In one embodiment, the self-generating fitness equipment also includes a voltage comparison controller, which is electrically connected to the power generation winding and the relay control switch respectively. The voltage comparison controller is used to detect the voltage of the power generation winding, and when the voltage is lower than a preset threshold, the voltage comparison controller controls the relay control switch to connect the power storage unit and the electromagnetic winding.

[0019] For the above-mentioned self-generating fitness equipment, when the user exercises through the fitness structure, the fitness structure will drive the rotor to rotate between the inner stator and the outer stator, and when the rotor rotates along a preset circumferential direction relative to the outer stator, the magnetic field of the rotor changes, thereby generating an induced current in the generating winding on the outer stator. The induced current can not only supply power to the electrical components of the self-generating fitness equipment, but also, due to electromagnetic induction, there will be a certain damping force in the rotation of the rotor. The user needs to overcome the damping force when exercising through the fitness structure, so as to achieve the fitness effect.

[0020] When the rotor rotates at a low speed, the resistance formed by the generating winding on the rotor is smaller. At this time, power can be supplied to the electromagnetic winding through the power storage unit, so that the inner stator is magnetized by the current on the electromagnetic winding to form an electromagnet. When the rotor moves along the preset circumferential direction, due to the electromagnetic induction of the electromagnet, eddy currents will be formed inside the rotor. The eddy currents and the magnetized magnetic poles of the inner stator will generate damping force on the rotating rotor, thereby increasing the resistance of the rotor to rotation along the preset circumferential direction. Combined with the damping force exerted on the rotor due to electromagnetic induction, the two damping forces are combined to increase the resistance exerted on the user during exercise and meet the user's fitness needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a circuit diagram of the self-generating fitness equipment in some embodiments of the present application.

[0022] Figure 2 for Figure 1 A schematic diagram of the structure of a generator in an embodiment.

[0023] Figure 3 for Figure 2 A schematic structural diagram of a rotor of a generator in an embodiment.

[0024] Figure 4 for Figure 2 Schematic diagram of the connection between the inner stator and the outer stator of the generator in the embodiment.

[0025] Description of reference numerals:

[0026] Generator 10; inner stator 11; rotor 12; outer stator 13; power generation winding 14; electromagnetic winding 15; outer magnetic pole 16; inner magnetic pole 17;

[0027] Rotor inner ring 20; rotor middle layer 21; rotor outer ring 22; permanent magnet 23; magnetic conductor 24;

[0028] Power storage unit 30; rectifier 31; relay control switch 32; voltage comparison controller 33. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0030] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0031] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0033] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0035] The self-generating fitness equipment provided in one embodiment of the present application includes a fitness structure, a generator 10 and a power storage unit 30, wherein the fitness structure is used for users to exercise. When the self-generating fitness equipment is a treadmill, the fitness structure includes a conveyor belt so that the user can exercise by running on the conveyor belt of the fitness structure. In other embodiments, the self-generating fitness equipment can also be a spinning bike, and the fitness structure includes handlebars, a seat, pedals and wheels, etc. The user sits on the seat and steps on the pedals to simulate riding a bicycle for exercise. It can be understood that the fitness structure can be selected according to the exercise items required by the user, and no limitation is made here.

[0036] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The generator 10 includes an inner stator 11, a rotor 12 and an outer stator 13 which are arranged concentrically from the inside to the outside. The power generation winding 14 is electrically connected to the electrical structure of the self-generating fitness equipment. The rotor 12 is connected to the fitness structure in a transmission manner. When the user is exercising, the fitness structure can drive the rotor 12 to rotate relative to the inner stator 11 and the outer stator 13 along a preset circumferential direction. The outer stator 13 is wound with a power generation winding 14, which is used to be connected to the electrical components of the self-generating fitness equipment. The rotor 12 is an excitation magnet, that is, the rotor 12 itself can provide a magnetic field. The rotor 12 is connected to the fitness structure in a transmission manner. When the rotor 12 rotates relative to the outer stator 13 under the drive of the fitness structure, the magnetic field of the rotor 12 changes, so that the power generation winding 14 on the outer stator 13 generates an induced current due to electromagnetic induction, so that the electrical components of the self-generating fitness equipment are powered by the induced current generated by the power generation winding 14, thereby realizing self-generation of the fitness equipment.

[0037] Among them, an electromagnetic winding 15 is wound on the inner stator 11, and the power storage unit 30 is electrically connected to the electromagnetic winding 15. When the power storage unit 30 supplies power to the electromagnetic winding 15, the inner stator 11 is magnetized by the current on the electromagnetic winding 15 to form an electromagnet. When the rotor 12 moves along a preset circumferential direction, due to the magnetic induction of the electromagnet, eddy currents will be formed inside the rotor 12. The eddy currents and the magnetic poles of the magnetized inner stator 11 will generate damping force on the rotating rotor 12, thereby increasing the resistance of the rotor 12 to rotation along the preset circumferential direction. The user needs to exert more force on the fitness structure to maintain the rotor 12 rotating along the preset circumferential direction, thereby meeting the user's demand for damping required for fitness.

[0038] For the above-mentioned self-generating fitness equipment, when the user exercises through the fitness structure, the fitness structure will drive the rotor 12 to rotate between the inner stator 11 and the outer stator 13, and when the rotor 12 rotates along a preset circumferential direction relative to the outer stator 13, the magnetic field of the rotor 12 changes, thereby generating an induced current in the power generation winding 14 on the outer stator 13. The induced current can not only power the electrical components of the self-generating fitness equipment, but also, due to electromagnetic induction, there will be a certain damping force in the rotation of the rotor 12. The user needs to overcome the damping force when exercising through the fitness structure, so as to achieve the fitness effect.

[0039] When the rotation speed of the rotor 12 is low, the resistance formed by the generating winding 14 on the rotor 12 is small. At this time, the electromagnetic winding 15 can be powered by the power storage unit 30, so that the inner stator 11 is magnetized by the current on the electromagnetic winding 15 to form an electromagnet. When the rotor 12 moves along the preset circumferential direction, due to the magnetoelectric induction of the electromagnet, eddy currents are formed inside the rotor 12. The eddy currents and the magnetic poles of the magnetized inner stator 11 will generate damping force on the rotating rotor 12, thereby increasing the resistance of the rotor 12 to rotation along the preset circumferential direction. Together with the damping force exerted on the rotor 12 due to electromagnetic induction, the two damping forces are combined to increase the resistance exerted on the user during exercise and meet the user's fitness needs.

[0040] In some embodiments of the present application, the rotor 12 includes a rotor inner ring 20, a rotor middle layer 21 and a rotor outer ring 22 which are arranged in sequence from the inside to the outside, the rotor outer ring 22 is an excitation magnet, the rotor middle layer 21 is made of a non-magnetic material, and the rotor inner ring 20 is made of a magnetic material. Optionally, the excitation magnet may be made of neodymium iron boron or ferrite, and the excitation magnet may be made of permanent magnet excitation or electromagnetic excitation, and the non-magnetic material may be made of aluminum, stainless steel, plastic, etc., and the magnetic material may be made of electrical pure iron, cast iron, cast steel, etc.

[0041] In actual use, when the rotor 12 rotates along a preset circumferential direction, the outer stator 13 and the power generation winding 14 generate electromagnetic induction with the rotor outer ring 22, so that the power generation winding 14 generates current for power generation. At this time, if the power storage unit 30 and the electromagnetic winding 15 are connected, the inner stator 11 is magnetized to form an electromagnet, and the rotor inner ring 20 and the electromagnet cause eddy currents in the rotor 12 due to electromagnetic induction. The eddy currents and the magnetic poles of the magnetized inner stator 11 will generate damping force on the rotating rotor 12. By setting the rotor middle layer 21 to a non-magnetic material, the inner stator 11 and the outer stator 13 are separated from each other by the rotor middle layer 21, thereby reducing the mutual interference between the inner stator 11 and the outer stator 13.

[0042] In some embodiments, the rotor outer ring 22 is composed of a plurality of permanent magnets 23 and a plurality of magnetizers 24 arranged alternately along the circumference of the rotor middle layer 21, and the cross arrangement of the excitation magnets and the magnetizers 24 is used to relieve the sudden change of the magnetic potential difference in the boundary area of ​​the excitation magnetic field, which can effectively reduce the vibration and noise during the operation of the generator 10. The rotor middle layer 21 is made of non-magnetic aluminum and connected to the shaft core hole of the rotor 12 by die casting, and the rotor inner ring 20 is made of a magnetic iron ring.

[0043] In some embodiments, a plurality of external magnetic poles 16 are protruding from the inner wall of the outer stator 13, and the generating winding 14 is wound around all the external magnetic poles 16, and the generating winding 14 is a three-phase winding, that is, when the rotor 12 moves along a preset circumferential direction, the current generated by the rotor 12 through the generating winding 14 is three-phase electricity. Compared with the single-phase power generation method, the generator 10 adopts the three-phase power generation method to have greater power to meet the power demand of the electrical components of the self-generating fitness equipment.

[0044] Furthermore, the number of outer magnetic poles 16 is 24, the number of permanent magnets on the rotor outer ring 22 is 20, and the number of magnetizers 24 is 20. The number of outer magnetic poles 16 and the number of permanent magnets meet the requirements of dual three-phase power generation, so that the excitation magnetic field of the rotor 12 decelerates the vibration force of the iron core of the rotor 12, thereby reducing the vibration of the rotor 12.

[0045] Among them, see Figure 4 The outer stator 13 is a power generation armature made of silicon steel sheets by stamping, and has 24 outer magnetic poles 16. The outer magnetic poles 16 are wound with power generation windings 14, and the power generation windings 14 are three-phase four-pole double winding circuit structures. Figure 4 As shown, taking phase A as an example, A1 and A2 are the first magnetic pole, A3 and A4 are the second magnetic pole, A5 and A6 are the third magnetic pole, and A7 and A8 are the fourth magnetic pole. Since each magnetic pole has two windings, it is called a three-phase four-pole double-winding circuit structure. Since the winding method of the three-phase winding is the same, the winding method of the other two phases can refer to phase A and will not be repeated here.

[0046] Specifically in some embodiments, since the power generation winding 14 outputs three-phase electricity, and electrical components generally use direct current, the self-generating fitness equipment further includes a rectifier 31, which is electrically connected to the power generation winding 14 and the power storage unit 30, respectively, and is used to rectify the three-phase alternating current emitted by the power generation winding 14 into direct current and output it to the power storage unit 30. In this way, the electric energy output by the power generation winding 14 is converted by the rectifier 31, stored in the power storage unit 30, and finally output to the electrical components through the power storage unit 30.

[0047] In some embodiments of the present application, the outer wall of the inner stator 11 is provided with a plurality of inner magnetic poles 17 on the circumferential protrusion, and the electromagnetic winding 15 is wound around all the inner magnetic poles. When the inner stator 11 is magnetized, the polarities of two adjacent inner magnetic poles 17 are opposite. The power storage unit 30 is used to output direct current, and the electromagnetic winding 15 is a series circuit and includes two external connectors, which are respectively connected to the positive pole and the negative pole of the power storage unit 30.

[0048] Specifically, the NS pole of the magnetic pole is as follows Figure 4 As shown in the winding method of the inner stator 11, when a direct current is passed through the electromagnetic winding 15 of the 12 inner magnetic poles 17 of the inner stator 11, 12 excitation poles with N and S poles arranged alternately are formed, and the excitation poles face the magnetic conductive material of the inner layer of the rotor 12. When the rotor 12 rotates, eddy current electricity is generated in the magnetic conductive material of the inner layer of the rotor 12. The eddy current and the excitation poles of the inner stator 11 generate a damping force, which hinders the change of the eddy current current, thereby causing resistance to the rotation of the rotor 12.

[0049] In some embodiments of the present application, the self-generating fitness equipment further includes a relay control switch 32, which is electrically connected to the power storage unit 30 and the electromagnetic winding 15, respectively, and can control the connection and disconnection of the power storage unit 30 and the electromagnetic winding 15. In actual use, when the relay control switch 32 is turned off, the power storage unit 30 and the electromagnetic winding 15 are disconnected from each other. When the user exercises through the fitness structure, the rotor 12 is only subjected to the damping force generated by electromagnetic induction. If the user feels that the damping force is too small to meet the fitness needs, the relay control switch 32 can be turned on to connect the power storage unit 30 and the electromagnetic winding 15, so that the inner stator 11 is magnetized and applies additional damping force to the rotor 12, thereby increasing the resistance that the user needs to overcome during exercise and meeting the user's fitness needs.

[0050] In some embodiments, the self-generating fitness equipment also includes a voltage comparison controller 33, which is electrically connected to the generating winding 14 and the relay switch respectively. The voltage comparison controller 33 is used to detect the voltage of the generating winding 14, and when the voltage is lower than a preset threshold, the voltage comparison controller 33 controls the relay control switch 32 to connect the power storage unit 30 and the electromagnetic winding 15.

[0051] During actual use, when the rotation speed of the rotor 12 is low, the voltage generated by the power generation winding 14 is low. At this time, when the voltage comparison controller 33 detects a low voltage, it can control the relay control switch 32 to connect the power storage unit 30 and the electromagnetic winding 15 to increase the resistance of the rotor 12 and meet the user's exercise needs. When the rotation speed of the rotor 12 is high, the voltage generated by the power generation winding 14 is large. At this time, the rotor 12 is also subject to greater resistance due to electromagnetic induction. At this time, the voltage comparison controller 33 can be used to control the relay control switch 32 to disconnect the power storage unit 30 and the electromagnetic winding 15 to avoid excessive resistance to the rotor 12, which affects the user's fitness effect.

[0052] Optionally, the voltage comparison controller 33 and the relay control switch 32 are both electrically connected to the power storage unit 30, and the power storage unit 30 supplies power to the voltage comparison controller 33 and the relay control switch 32. The power storage unit 30 may be a battery pack composed of a plurality of rechargeable batteries.

[0053] The above self-generating fitness equipment has at least the following advantages:

[0054] When the user exercises through the fitness structure, the fitness structure will drive the rotor 12 to rotate between the inner stator 11 and the outer stator 13, and when the rotor 12 rotates along a preset circumferential direction relative to the outer stator 13, the magnetic field of the rotor 12 changes, thereby generating an induced current in the power generation winding 14 on the outer stator 13. The induced current can not only power the electrical components of the self-generating fitness equipment, but also cause a certain damping force to the rotation of the rotor 12 due to electromagnetic induction. The user needs to overcome the damping force when exercising through the fitness structure to achieve the fitness effect.

[0055] When the rotation speed of the rotor 12 is low, the resistance formed by the generating winding 14 on the rotor 12 is small. At this time, the electromagnetic winding 15 can be powered by the power storage unit 30, so that the inner stator 11 is magnetized by the current on the electromagnetic winding 15 to form an electromagnet. When the rotor 12 moves along the preset circumferential direction, due to the magnetoelectric induction of the electromagnet, eddy currents are formed inside the rotor 12. The eddy currents and the magnetic poles of the magnetized inner stator 11 will generate damping force on the rotating rotor 12, thereby increasing the resistance of the rotor 12 to rotation along the preset circumferential direction. Together with the damping force exerted on the rotor 12 due to electromagnetic induction, the two damping forces are combined to increase the resistance exerted on the user during exercise and meet the user's fitness needs.

[0056] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A self-generating fitness equipment, characterized in that: The self-generating fitness equipment comprises: A fitness structure for users to exercise; The generator (10) comprises an inner stator (11), a rotor (12) and an outer stator (13) which are arranged concentrically in sequence from the inside to the outside, the outer stator (13) being wound with a power generation winding (14), the inner stator (11) being wound with an electromagnetic winding (15), the rotor (12) being an excitation magnet and being transmission-connected to the fitness structure, and when the user is exercising, the fitness structure can drive the rotor (12) to rotate relative to the inner stator (11) and the outer stator (13) along a preset circumferential direction; An electric storage unit (30) is electrically connected to the electromagnetic winding (15) and is used to magnetize the inner stator (11); the magnetized inner stator (11) can increase the rotational resistance of the rotor (12) when the rotor (12) rotates along the preset circumferential direction.

2. The self-generating fitness equipment according to claim 1, characterized in that: The rotor (12) comprises a rotor inner ring (20), a rotor middle layer (21) and a rotor outer ring (22) which are arranged in sequence from the inside to the outside, the rotor outer ring (22) being an excitation magnet, the rotor middle layer (21) being made of a non-magnetic conductive material, and the rotor inner ring (20) being made of a magnetic conductive material.

3. The self-generating fitness equipment according to claim 2, characterized in that: The rotor outer ring (22) is composed of a plurality of permanent magnets (23) and a plurality of magnetic conductors (24) arranged alternately along the circumferential direction of the rotor middle layer (21).

4. The self-generating fitness equipment according to claim 3, characterized in that: A plurality of outer magnetic poles (16) are protrudingly provided on the inner side wall of the outer stator (13), the power generation winding (14) is wound around all the outer magnetic poles (16), and the power generation winding (14) is a three-phase winding.

5. The self-generating fitness equipment according to claim 4, characterized in that: The number of the outer magnetic poles (16) is 24; And / or, the number of the permanent magnets (23) on the rotor outer ring (22) is 20, and the number of the magnetic conductors (24) is 20.

6. The self-generating fitness equipment according to claim 4, characterized in that: The self-generating fitness equipment further comprises a rectifier (31), the rectifier (31) being electrically connected to the power generation winding (14) and the power storage unit (30) respectively, and the rectifier (31) being used to rectify the three-phase alternating current generated by the power generation winding (14) into direct current and output it to the power storage unit (30).

7. The self-generating fitness equipment according to claim 1, characterized in that: The outer wall of the inner stator (11) is provided with a plurality of inner magnetic poles (17) protruding in the circumferential direction, the electromagnetic winding (15) is wound around all the inner magnetic poles, and when the inner stator (11) is magnetized, the polarities of two adjacent inner magnetic poles (17) are opposite; The power storage unit (30) is used to output direct current, and the electromagnetic winding (15) is a series circuit and comprises two external connectors, wherein the two external connectors are respectively connected to the positive pole and the negative pole of the power storage unit (30).

8. The self-generating fitness equipment according to claim 7, characterized in that: The number of the inner magnetic poles (17) is 12.

9. The self-generating fitness equipment according to claim 1, characterized in that: The self-generating fitness equipment further comprises a relay control switch (32), wherein the relay control switch (32) is electrically connected to the power storage unit (30) and the electromagnetic winding (15) respectively, and can control the connection and disconnection of the power storage unit (30) and the electromagnetic winding (15).

10. The self-generating fitness equipment according to claim 9, characterized in that: The self-generating fitness equipment further comprises a voltage comparison controller (33), wherein the voltage comparison controller (33) is electrically connected to the power generation winding (14) and the relay control switch (32) respectively, and the voltage comparison controller (33) is used to detect the voltage of the power generation winding (14), and when the voltage is lower than a preset threshold value, the voltage comparison controller (33) controls the relay control switch (32) to connect the power storage unit (30) and the electromagnetic winding (15).

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