A hula hoop energy collector

Abstract

The present invention discloses a hula hoop-type energy collector, which relates to the technical field of power generation equipment. The collector comprises a collector body, a magnetic ring, a slider, and a coil. The collector body is annular, and the magnetic ring comprises at least two arc-shaped magnetic components. The multiple magnetic components are sequentially connected end to end to form a magnetic ring. The magnetic properties of two adjacent magnetic components in the magnetic ring are opposite at the ends near the center of the magnetic ring. The magnetic ring is sleeved within or outside the collector body, and the magnetic ring is fixedly connected to the collector body. The collector body is provided with an annular slide groove, and the slider is connected to the slide groove by sliding or rolling. The coil is fixedly connected to the slider. The collector body can rotate around the external component under the action of an external force. When the collector body rotates around the external component, the slider can slide or roll along the slide groove, and the magnetic flux of the coil in the magnetic field generated by the magnetic ring changes. The structure is relatively simple, easy to carry and apply, and has high power generation capacity.

Description

Technical Field

[0001] The present invention relates to the technical field of power generation equipment, in particular to a hula hoop type energy collector. Background Art

[0002] With the development of information technology and artificial intelligence, portable and wearable electronic devices are flooding into our lives and changing our lifestyles. Faced with the large number of distributed sensors and electronic devices in the Internet of Things (IoT), traditional power supply methods based on power grids and batteries may not be able to meet the requirements of portability, wirelessness, and environmental friendliness. Therefore, there is an urgent need to develop sustainable and renewable distributed energy sources to address the constraints of traditional power supply. Currently, available energy in the environment includes light, heat, mechanical, and chemical energy. Converting these various forms of energy into electrical energy has become a hot topic of research for many scholars both domestically and internationally. Among them, converting the mechanical energy of human motion into electrical energy is considered an ideal energy supply solution for portable electronic products. The mechanical energy of human motion is a continuous mechanical energy with the characteristics of small displacement and high energy. Utilizing the energy generated by human motion to provide real-time power for portable devices has broad development prospects.

[0003] Chinese patent CN202010793344.8 provides a back-worn four-wheel drive human motion energy harvesting device and human enhancement equipment, whose working principle is: when the human joints move, they pull the leg traction rope and the arm traction rope, and the mechanical energy is transmitted to the drive wheel in the human motion energy harvesting device through the soft rope, which does not affect the comfort of the human body and has a large driving force; the leg traction rope and the arm traction rope are both wrapped around the light wheel on the drive wheel clockwise (looking straight at the back), that is, the movement of the left and right arms and legs causes the drive wheel to rotate clockwise. Since the gear on the drive wheel is engaged with the gear on the ratchet wheel, the drive wheel drives the ratchet wheel to rotate, and the ratchet wheel drives the ratchet wheel to rotate clockwise unidirectionally at high speed, that is, the rotating power generation disk rotates clockwise unidirectionally at high speed; when the rotating power generation disk and the permanent magnet mounted on it rotate, the magnetic flux passing through the coil changes, realizing electromagnetic induction power generation; the rotating power generation disk rotates unidirectionally at high speed, causing the friction conductive sheet to rub against the electron gain frame and the electron loss frame, and the friction generates charge transfer, thereby realizing power generation. Existing energy harvesters, such as Chinese patent CN202010793344.8, have large volume and mass and complex structure, making them inconvenient to use.

[0004] Chinese patent CN201410784172.2 discloses a self-powered smart sports shoe that generates electricity by installing a piezoelectric energy harvesting device in the heel. Specifically, when the foot steps on the ground, the piezoelectric unit and piezoelectric stack are compressed. When the foot leaves the ground, the pressure on the piezoelectric unit and piezoelectric stack is released. Therefore, the piezoelectric unit and piezoelectric stack can continuously recover the energy generated by movement, which is then processed by an energy recovery circuit to charge a rechargeable battery. However, the human body's low frequency of movement results in a low excitation frequency and low power generation capacity of existing energy harvesters such as those in Chinese patent CN201410784172.2. Summary of the Invention

[0005] The purpose of the present invention is to provide a hula hoop type energy collector to solve the problems existing in the above-mentioned prior art, which has a relatively simple structure, is easy to carry and use, and has a high power generation capacity.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] The present invention provides a hula hoop type energy collector, comprising a collector body, a magnetic ring, a slider and a coil, wherein the collector body is ring-shaped, and the magnetic ring comprises at least two arc-shaped magnetic components, and the ends of a plurality of the magnetic components are sequentially connected to each other to form the magnetic ring, and the magnetic properties of two adjacent magnetic components in the magnetic ring close to the center of the magnetic ring are opposite; the magnetic ring is sleeved inside or outside the collector body, and the magnetic ring is fixedly connected to the collector body; an annular slide groove is provided on the collector body, and the slider is connected to the slide groove by sliding or rolling; the coil is fixedly connected to the slider, and the collector body can rotate around the external component under the action of external force, and when the collector body rotates around the external component, the slider can slide or roll along the slide groove and the magnetic flux of the coil in the magnetic field generated by the magnetic ring changes.

[0008] Preferably, the slider includes a first support component, a second support component, a third support component and a plurality of rolling bodies, there are two slide grooves, and one slide groove is provided on both end surfaces of the collector body, one end of the first support component is rotatably connected to at least one rolling body, the other end of the first support component is fixedly connected to one end of the second support component, one end of the third support component is rotatably connected to at least one rolling body, the other end of the third support component is fixedly connected to the other end of the second support component, and when the collector body rotates around the external component, each of the rolling bodies on the first support component is rollingly connected to the outer wall of one slide groove, and each of the rolling bodies on the third support component is rollingly connected to the outer wall of another slide groove.

[0009] Preferably, it also includes a first piezoelectric element, a pressure plate, a counterweight component and a connecting component, the first piezoelectric element is at least one, the second supporting component is arranged on the side of the magnetic ring and the collector body away from the center of the collector body, the second supporting component is provided with a through hole extending along the radial direction of the magnetic ring, one side surface of each of the first piezoelectric elements is fixedly connected to the pressure plate, the other side surface of each of the first piezoelectric elements can contact the outer surface of the second supporting component close to the magnetic ring, the pressure plate is connected to the second supporting component, one end of the connecting component is fixedly connected to the pressure plate, and the connecting The other end of the component can pass through the through hole and be fixedly connected to the counterweight component. When the collector body rotates around the external component, the counterweight component can rotate around the external component under the action of centrifugal force and can drive the slider to roll along the slide groove through the pressure plate. The counterweight component can apply a pulling force away from the center of the magnetic ring to the pressure plate through the connecting component under the action of the centrifugal force. The pressure plate can apply a first pressure away from the center of the magnetic ring to the first piezoelectric element under the action of the pulling force, and the first piezoelectric element can generate electrical energy under the action of the first pressure.

[0010] Preferably, it also includes at least one second piezoelectric element, each second piezoelectric element is fixedly connected to the inner wall of the collector body, and when the collector body rotates around the external component, the external component can apply a second pressure away from the center of the magnetic ring to the second piezoelectric element, and the second piezoelectric element can generate electrical energy under the action of the second pressure.

[0011] Preferably, it further includes at least one massage pad, one end of each massage pad is fixedly connected to the side surface of each second piezoelectric element away from the collector body, when the collector body rotates around the external component, the external component can contact the massage pad and apply a second pressure away from the center of the magnetic ring to the second piezoelectric element, and each massage pad is electrically connected to at least one first piezoelectric element and / or at least one second piezoelectric element.

[0012] Preferably, it also includes a first limiting ring, the magnetic ring is sleeved outside the collector body, the first limiting ring is fixedly connected to the second supporting component, and the first limiting ring is arranged between the magnetic ring and the second supporting component, and the coil is arranged inside the first limiting ring.

[0013] Preferably, the device further comprises a second limiting ring, the second limiting ring being fixedly connected to the second supporting member and disposed between the magnetic ring and the second supporting member, and the pressure plate being disposed within the first limiting ring. The inner wall of the second limiting ring is capable of limiting relative movement between the pressure plate and the second supporting member perpendicular to the radial direction of the magnetic ring.

[0014] Preferably, the collector body is a hula hoop, the rolling element is a bearing, and the connecting component is a flexible component.

[0015] Compared with the prior art, the present invention has achieved the following technical effects:

[0016] The hula hoop type energy collector provided by the present invention includes a collector body, a magnetic ring, a slider and a coil. The magnetic ring includes at least two arc-shaped magnetic components. The ends of multiple magnetic components are connected to each other in sequence to form the magnetic ring. The magnetic properties of two adjacent magnetic components in the magnetic ring close to the center of the magnetic ring are opposite. The magnetic ring is sleeved inside or outside the collector body. The collector body is provided with an annular slide groove, and the slider is connected to the slide groove by sliding or rolling. The coil is fixedly connected to the slider, and the collector body can rotate around the external component under the action of external force. When the collector body rotates around the external component, the slider can slide or roll along the slide groove and the magnetic flux of the coil in the magnetic field generated by the magnetic ring changes. When in use, the collector body is placed on the waist or limbs, and the collector body can be rotated around the waist or limbs by shaking the waist or limbs, so that the coil slides along the slide groove driven by the slider. During the sliding process, the magnetic flux of the coil in the magnetic field generated by the magnetic ring changes periodically, so that current is generated in the coil. The hula hoop type energy collector provided by the present invention has a relatively simple structure and is easy to carry and use; at the same time, since the magnetic properties of the two adjacent magnetic components in the magnetic ring close to the center of the magnetic ring are opposite, the connection between the two adjacent track parts is the junction of the N pole and the S pole, and a sudden change in magnetic flux will occur here. The magnitude of the induced electromotive force in the circuit is proportional to the rate of change of the magnetic flux passing through this circuit, so the magnetic flux density at the connection between the two track parts changes the most. Therefore, the electromagnetic power generation device in the present invention can increase the number of sudden changes in the magnetic flux density of the coil, thereby improving the power generation capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1A schematic structural diagram of the hula hoop type energy collector provided by the present invention;

[0019] Figure 2 A schematic structural diagram of a slider provided by the present invention;

[0020] Figure 3 This is a schematic structural diagram of the second piezoelectric element and massage pad provided by the present invention;

[0021] Figure 4 A schematic structural diagram of the magnetic ring provided by the present invention;

[0022] Figure 5 A schematic structural diagram of the first piezoelectric element, pressure plate, and connecting component provided by the present invention;

[0023] Figure 6 A schematic structural diagram of the first piezoelectric element, pressure plate, connecting component, and second supporting component provided by the present invention;

[0024] In the figure: 100, hula hoop type energy collector; 1, collector body; 101, slide groove; 2, magnetic ring; 201, magnetic component; 3, slider; 301, first supporting component; 302, second supporting component; 303, third supporting component; 304, rolling body; 305, through hole; 4, coil; 5, first piezoelectric element; 6, pressure plate; 7, counterweight component; 8, connecting component; 9, second piezoelectric element; 10, massage pad; 11, first limiting ring; 12, second limiting ring. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] The purpose of the present invention is to provide a hula hoop type energy collector to solve the problems existing in the above-mentioned prior art, which has a relatively simple structure, is easy to carry and use, and has a high power generation capacity.

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] like Figure 1-6As shown, the present invention provides a hula hoop type energy collector 100, comprising a collector body 1, a magnetic ring 2, a slider 3 and a coil 4. The collector body 1 is annular, and the magnetic ring 2 includes at least two arc-shaped magnetic components 201. The ends of the multiple magnetic components 201 are connected to each other in sequence to form a magnetic ring 2. The magnetic properties of two adjacent magnetic components 201 in the magnetic ring 2 close to the center of the magnetic ring 2 are opposite. Correspondingly, the magnetic properties of two adjacent magnetic components 201 in the magnetic ring 2 away from the center of the magnetic ring 2 are also opposite. The magnetic ring 2 is sleeved inside or outside the collector body 1, and the magnetic ring 2 is fixedly connected to the collector body 1. An annular slide groove 101 is provided on the collector body 1, and the slider 3 is connected to the slide groove 101 by sliding or rolling. The coil 4 is fixedly connected to the slider 3. The collector body 1 can rotate around the external component under the action of an external force. When the collector body 1 rotates around the external component, the slider 3 can slide or roll along the slide groove 101 and the magnetic flux of the coil 4 in the magnetic field generated by the magnetic ring 2 changes. When in use, the collector body 1 is put on the waist or limbs, and the collector body 1 can be rotated around the waist or limbs by shaking the waist or limbs, so that the coil 4 slides along the slide groove 101 under the drive of the slider 3. During the sliding process, the magnetic flux of the coil 4 in the magnetic field generated by the magnetic ring 2 changes periodically, so that current is generated in the coil 4. The hula hoop type energy collector 100 provided by the present invention has a relatively simple structure and is easy to carry and use; at the same time, since the magnetic properties of the two adjacent magnetic components 201 in the magnetic ring 2 are opposite at one end close to the center of the magnetic ring 2, the connection between the two adjacent track parts is the junction of the N pole and the S pole, and a sudden change in magnetic flux will occur here. The magnitude of the induced electromotive force in the circuit is proportional to the rate of change of the magnetic flux passing through this circuit, so the magnetic flux density at the connection between the two track parts changes the most. Therefore, the electromagnetic power generation device in the present invention can increase the number of sudden changes in the magnetic flux density of the coil 4, thereby improving the power generation capacity.

[0029] like Figure 2As shown, the slider 3 includes a first support component 301, a second support component 302, a third support component 303 and a plurality of rolling bodies 304, there are two slide grooves 101, and a slide groove 101 is provided on both end surfaces of the collector body 1, one end of the first support component 301 is rotatably connected to at least one rolling body 304, the other end of the first support component 301 is fixedly connected to one end of the second support component 302, one end of the third support component 303 is rotatably connected to at least one rolling body 304, and the other end of the third support component 303 is fixedly connected to the other end of the second support component 302. When the collector body 1 rotates around the external component, each rolling body 304 on the first support component 301 is rollingly connected to the outer wall of one slide groove 101 and each rolling body 304 on the third support component 303 is rollingly connected to the outer wall of another slide groove 101, that is, the slider 3 is U-shaped, and the second support component 302 is arranged on the outside of the collector body 1. As a preferred embodiment, the first support member 301 and the third support member 303 are both rotationally connected to the two rolling elements 304 via a connecting shaft. The rolling elements 304 are bearings. Specifically, one end of the connecting shaft is fixedly connected to the inner ring of the bearing, and the other end of the connecting shaft is fixedly connected to the first support member 301 and the third support member 303. The axes of the two chutes 101 are collinear. The distance between the bearing on the first support member 301 and the corresponding bearing on the third support member 303 is greater than the distance between the bottom surfaces of the two chutes 101 and less than the thickness of the collector body 1, so that the slider 3 will not fall off during the sliding process. According to Faraday's law of electromagnetic induction, It can be seen that the faster the slider 3 rotates, the greater the electromagnetic power generation. The slider 3 and the slide groove 101 are connected in a sliding manner, which can reduce the friction between the two, realize the smooth rotation of the slider 3, and improve the system's power conversion efficiency.

[0030] like Figure 5-6As shown, the hula hoop type energy collector 100 provided by the present invention also includes a first piezoelectric element 5, a pressure plate 6, a counterweight component 7 and a connecting component 8. Preferably, the counterweight component 7 is spherical, and the connecting component 8 is a flexible component, such as an elastic rope. There are at least one first piezoelectric element 5, preferably two, and the second support component 302 is arranged on the side of the magnetic ring 2 and the collector body 1 away from the center of the collector body 1. The second support component 302 is provided with a through hole 305 extending along the radial direction of the magnetic ring 2. One side surface of each first piezoelectric element 5 is fixedly connected to the pressure plate 6. Preferably, the first piezoelectric element 5 is bonded to the pressure plate 6, and the other side surface of each first piezoelectric element 5 can contact the outer surface of the second support component 302 close to the magnetic ring 2. The pressure plate 6 is connected to the second support component 302, and the connecting component One end of the connecting component 8 is fixedly connected to the pressure plate 6, and the other end of the connecting component 8 can pass through the through hole 305 and be fixedly connected to the counterweight component 7. The size of the through hole 305 must ensure that the connecting component 8 can pass through and the pressure plate 6 cannot pass through. When the collector body 1 rotates around the external component, the counterweight component 7 can rotate around the external component under the action of centrifugal force and can drive the slider 3 to roll along the slide groove 101 through the pressure plate 6. The counterweight component 7 can apply a pulling force away from the center of the magnetic ring 2 to the pressure plate 6 through the connecting component 8 under the action of centrifugal force. The pressure plate 6 can apply a first pressure away from the center of the magnetic ring 2 to the first piezoelectric element 5 under the action of the pulling force. The first piezoelectric element 5 is squeezed between the pressure plate 6 and the second support component 302. The first piezoelectric element 5 can generate electrical energy under the action of the first pressure. According to the positive piezoelectric effect, the first piezoelectric element 5 will generate an electric potential difference on the surface after being subjected to a pressure perpendicular to the surface of the first piezoelectric element 5. The first piezoelectric element 5 can generate electrical energy after being connected to an external circuit.

[0031] like Figure 1As shown, the hula hoop type energy collector 100 provided by the present invention also includes at least one second piezoelectric element 9, each second piezoelectric element 9 is fixedly connected to the inner wall of the collector body 1. Preferably, the second piezoelectric element 9 is bonded to the collector body 1. When the collector body 1 rotates around the external component, the external component can apply a second pressure away from the center of the magnetic ring 2 to the second piezoelectric element 9, and the second piezoelectric element 9 can generate electrical energy under the action of the second pressure. According to the positive piezoelectric effect, the second piezoelectric element 9 will generate an electric potential difference on the surface after being subjected to a pressure perpendicular to the surface of the second piezoelectric element 9, and the second piezoelectric element 9 can generate electrical energy after being connected to an external circuit. The first piezoelectric element 5 and the second piezoelectric element 9 are preferably piezoelectric films or piezoelectric ceramics. The hula hoop type energy collector 100 provided by the present invention has three power generation units: a coil 4 and a magnetic ring 2, a first piezoelectric element 5 and a second piezoelectric element 9. When the hula hoop type energy collector 100 rotates, the three power generation units generate electricity simultaneously. They can be combined through an energy management circuit, thereby making up for the shortcoming of low power generation of a single energy collection device, increasing power generation and improving power generation efficiency.

[0032] like Figure 1 As shown, the hula hoop type energy collector 100 provided by the present invention also includes at least one massage pad 10 and at least one heating component. At least one heating component is provided in each massage pad. One end of each massage pad 10 is fixedly connected to the surface of each second piezoelectric element 9 away from the collector body 1. Preferably, the massage pad 10 is bonded to the second piezoelectric element 9. When the collector body 1 rotates around the external component, the external component can contact the massage pad 10 and apply a second pressure away from the center of the magnetic ring 2 to the second piezoelectric element 9. Each heating component is electrically connected to at least one first piezoelectric element 5 and / or at least one second piezoelectric element 9. During the rotation process, the heating component can heat the waist.

[0033] like Figure 2 As shown, the hula hoop type energy collector 100 provided by the present invention also includes a first limiting ring 11, a magnetic ring 2 is sleeved on the outside of the collector body 1, and a second support component 302 is arranged on the outside of the magnetic ring 2. The first limiting ring 11 is fixedly connected to the second support component 302, and the first limiting ring 11 is arranged between the magnetic ring 2 and the second support component 302, and the coil 4 is arranged inside the first limiting ring 11.

[0034] like Figure 2As shown, the hula hoop type energy collector 100 provided by the present invention also includes a second limiting ring 12, which is fixedly connected to the second support component 302. The second limiting ring 12 is arranged between the magnetic ring 2 and the second support component 302, and the pressure plate 6 is arranged inside the first limiting ring 11. The inner wall of the second limiting ring 12 can limit the relative movement of the pressure plate 6 and the second support component 302 perpendicular to the radial direction of the magnetic ring 2. The counterweight component 7 will apply a thrust to the pressure plate 6 during the rotation process, and the pressure plate 6 will apply a thrust to the corresponding inner wall of the second limiting ring 12. Under the action of this thrust, the second limiting ring 12 can drive the slider 3 to slide along the slide groove 101.

[0035] As a preferred embodiment, the second limiting ring 12 is arranged inside the first limiting ring 11 , and the coil 4 is arranged in the cavity between the second limiting ring 12 and the first limiting ring 11 , which is beneficial to reducing the volume of the slider 3 .

[0036] As a preferred embodiment, the collector body 1 is a hula hoop; the magnetic component 201 is a fan-shaped magnet block; the massage pad 10 is made of soft rubber material;

[0037] As a preferred embodiment, under the premise of not affecting the sliding of the slider 3, the distance between the coil 4 and the magnetic ring 2 is set as small as possible, so that the magnetic flux passing through the coil 4 can be larger, thereby increasing the power generation; the coil 4 is fixed with a titanium alloy wire column. Titanium alloy has excellent magnetic conductivity and can improve the power generation capacity of the device.

[0038] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A hula hoop type energy collector, characterized by: The magnetic ring is connected to the magnetic field of the magnetic ring by a plurality of means for transmitting the magnetic field to the magnetic field of the magnetic ring. The slider includes a second supporting member, and the second supporting member is arranged on the outer side of the collector body; It also includes a first piezoelectric element, a pressure plate, a counterweight component and a connecting component. There is at least one first piezoelectric element. The second supporting component is arranged on the side of the magnetic ring and the collector body away from the center of the collector body. The second supporting component is provided with a through hole extending radially along the magnetic ring. One side surface of each first piezoelectric element is fixedly connected to the pressure plate, and the other side surface of each first piezoelectric element can contact the outer surface of the second supporting component close to the magnetic ring. The pressure plate is connected to the second supporting component. One end of the connecting component is fixedly connected to the pressure plate, and the other end of the connecting component can pass through the through hole and be fixedly connected to the counterweight component. When the collector body rotates around the external component, the counterweight component can rotate around the external component under the action of centrifugal force and can drive the slider to roll along the slide groove through the pressure plate. The counterweight component can apply a pulling force away from the center of the magnetic ring to the pressure plate through the connecting component under the action of the centrifugal force. The pressure plate can apply a first pressure away from the center of the magnetic ring to the first piezoelectric element under the action of the pulling force. The first piezoelectric element can generate electrical energy under the action of the first pressure.

2. The hula hoop type energy collector according to claim 1, characterized in that: The slider also includes a first support component, a third support component and multiple rolling bodies, there are two slide grooves, and each of the two end surfaces of the collector body is provided with a slide groove, one end of the first support component is rotatably connected to at least one rolling body, the other end of the first support component is fixedly connected to one end of the second support component, one end of the third support component is rotatably connected to at least one rolling body, and the other end of the third support component is fixedly connected to the other end of the second support component, when the collector body rotates around the external component, each of the rolling bodies on the first support component is rollingly connected to the outer wall of one slide groove, and each of the rolling bodies on the third support component is rollingly connected to the outer wall of another slide groove.

3. The hula hoop type energy collector according to claim 1, characterized in that: It also includes at least one second piezoelectric element, each of which is fixedly connected to the inner wall of the collector body. When the collector body rotates around the external component, the external component can apply a second pressure away from the center of the magnetic ring to the second piezoelectric element, and the second piezoelectric element can generate electrical energy under the action of the second pressure.

4. The hula hoop type energy collector according to claim 3, characterized in that: It also includes at least one massage pad and at least one heating component, each massage pad is provided with at least one heating component, one end of each massage pad is fixedly connected to the side surface of each second piezoelectric element away from the collector body, when the collector body rotates around the external component, the external component can contact the massage pad and apply a second pressure away from the center of the magnetic ring to the second piezoelectric element, and each heating component is electrically connected to at least one first piezoelectric element and / or at least one second piezoelectric element.

5. The hula hoop type energy collector according to claim 1, characterized in that: It also includes a first limiting ring, the magnetic ring is sleeved on the outside of the collector body, the first limiting ring is fixedly connected to the second supporting component, and the first limiting ring is arranged between the magnetic ring and the second supporting component, and the coil is arranged inside the first limiting ring.

6. The hula hoop type energy collector according to claim 5, characterized in that: It also includes a second limiting ring, which is fixedly connected to the second supporting component and is arranged between the magnetic ring and the second supporting component. The pressure plate is arranged inside the first limiting ring, and the inner wall of the second limiting ring can limit the relative movement between the pressure plate and the second supporting component perpendicular to the radial direction of the magnetic ring.

7. The hula hoop type energy collector according to claim 2, characterized in that: The collector body is a hula hoop, the rolling element is a bearing, and the connecting component is a flexible component.

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