Kinetic energy recovery and power supply device

Abstract

The utility model relates to a kinetic energy recovery and power supply device. The motion energy recovery and power supply device comprises a generator, a power conversion circuit, a first control module and a second control module, and through the arrangement, on one hand, the motion energy recovery and power supply device can convert energy generated by human body motion into electric energy to be conveniently stored; and on the other hand, the internal voltage reference value can be adaptively adjusted according to the actual demand of the charged device, so that the purpose of adaptively adjusting the finally output direct-current voltage is achieved by controlling the duty ratio of a plurality of switching tubes, and the charged device can be quickly and safely charged.

Description

Technical Field

[0001] The present application relates to the technical field of energy conversion recovery and power supply circuits, and in particular to a motion energy recovery and power supply device. Background Art

[0002] In today's energy field, sustainability and energy-saving technologies have become the focus of global attention, especially in the sports equipment industry. Effective use of energy generated during human movement is an area with great potential that has not yet been fully developed. Although the smart fitness equipment on the market is versatile and highly integrated, its power supply mostly relies on additional power supply, such as traditional grid power supply or batteries driven by non-renewable energy sources, which not only increases energy consumption, but also fails to fully utilize the large amount of mechanical energy released during human movement.

[0003] There are some preliminary technical solutions for converting human motion kinetic energy into electrical energy in the prior art. However, these technical solutions generally have the problems of limited conversion efficiency and simplified energy storage and distribution strategies, and cannot achieve efficient energy storage and flexible application, such as storing the collected electrical energy in energy storage batteries to meet the self-powering needs of the electronic components of the sports equipment itself, such as display screens, or to power other charged devices to achieve green circulation and cable-free operation of the equipment. At the same time, for the application scenario of directly charging other devices with electrical energy, there is currently a lack of a sports energy recovery and power supply device that can not only convert human motion energy, but also dynamically adjust the output voltage according to the actual power demand of the charged device to achieve fast charging. Utility Model Content

[0004] Based on this, it is necessary to provide a motion energy recovery and power supply device that can convert the energy generated by human body movement into electrical energy storage and adjust the output voltage according to demand to address the above technical problems.

[0005] In a first aspect, the present application provides a sports energy recovery and power supply device, which includes a generator, a power conversion circuit, a first control module and a second control module. The generator is connected between a rotating part of a sports device and the power conversion circuit. When the rotating part rotates, the generator generates electrical energy; the output end of the power conversion circuit is connected to a charged device, and is used to convert the electrical energy generated by the generator into a DC voltage required by the charged device; the power conversion circuit includes a switch unit and a safety switch tube, and the switch unit is electrically connected to the safety switch tube; the communication end of the first control module is connected to the charged device, and the control end is connected to the safety switch tube and the second control module, and is used to generate a first control signal for controlling the on and off of the safety switch tube when receiving first charging information of the charged device, and to generate a second control signal for controlling the second control module; the communication end of the second control module is connected to the switch unit, and is used to control the duty cycle of the switch unit when receiving a voltage reference value configured by the second control signal, thereby controlling the power conversion circuit to output the DC voltage required by the charged device.

[0006] In one of the embodiments, the motion energy recovery and power supply device further includes an energy storage battery, which is connected to the output end of the power conversion circuit to store electrical energy.

[0007] In one embodiment, the generator is a DC generator.

[0008] In one embodiment, the generator is an AC generator, and the motion energy recovery and power supply device further includes a rectifier module, wherein an input end of the rectifier module is connected to the AC generator, and an output end of the rectifier module is connected to an input end of the power conversion circuit.

[0009] In one embodiment, the sports energy recovery and power supply device is a bicycle, an elliptical trainer or other sports equipment with rotating parts.

[0010] In one embodiment, the switch unit includes a first switch tube and a second switch tube; the first end of the first switch tube is connected to the DC generator, and the second end is connected to the first end of the safety switch tube; the second end of the safety switch tube is connected to the charged device; the first end of the second switch tube is connected to the second end of the first switch tube, and the second end is grounded.

[0011] In one embodiment, the switch unit includes a first switch tube and a second switch tube; the first end of the first switch tube is connected to the output end of the rectifier module, and the second end is connected to the first end of the safety switch tube; the second end of the safety switch tube is connected to the charged device; the first end of the second switch tube is connected to the second end of the first switch tube, and the second end is grounded.

[0012] In one embodiment, the power conversion circuit also includes an inductor element and a capacitor element; the first end of the inductor element is connected to the second end of the first switch tube, and the second end is connected to the first end of the safety switch tube; the first end of the capacitor element is connected to the second end of the inductor element, and the second end is grounded.

[0013] In one embodiment, the switch unit also includes a third switch tube and a fourth switch tube; the first end of the third switch tube is connected to the second end of the inductor element, and the second end is grounded; the first end of the fourth switch tube is connected to the second end of the inductor element, and the second end is simultaneously connected to the first end of the capacitor element and the first end of the safety switch tube.

[0014] In one embodiment, the first control module includes a configuration channel line.

[0015] In one embodiment, the first control module supports the PD fast charging protocol.

[0016] In one of the embodiments, the first control module sends second charging information of the motion energy recovery and power supply device to the charged device by configuring the channel line; the second charging information includes parameter information of the motion energy recovery and power supply device.

[0017] In one embodiment, the first control module obtains first charging information of the charged device from the charged device by configuring a channel line; the first control module is used to generate a second control signal when receiving the first charging information, and send the second control signal to the second control module.

[0018] In one embodiment, the first control module and the second control module are separate.

[0019] In one embodiment, the first control module and the second control module are integrated.

[0020] The above-mentioned sports energy recovery and power supply device, on the one hand, can store the collected electric energy in the energy storage battery. The electric energy stored in the battery can meet the self-power supply requirements of the electronic components of the sports equipment itself, such as display screens, and can also power other charged devices, thereby realizing the green cycle and cable-free operation of the equipment; on the other hand, the first control module can be used to obtain the first charging information of the charged device, so as to adaptively adjust the voltage reference value inside the second control module according to the actual needs of the charged device, so as to control the duty cycle of multiple switch tubes of the switch unit through the second control module, so as to achieve the purpose of adaptively adjusting the DC voltage finally output by the power conversion circuit. The above-mentioned sports energy recovery and power supply device can convert the potential energy generated by the rotating parts of the sports equipment into electric energy, and use the first control module and the second control module to adaptively control the output DC voltage, thereby realizing the function of quickly and safely charging the charged device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1 is a schematic structural diagram of a motion energy recovery and power supply device in one embodiment;

[0022] FIG2 is a schematic diagram of the structure of an integrated device for motion energy recovery and power supply in one embodiment;

[0023] FIG3 is a schematic structural diagram of an integrated device for motion energy recovery and power supply in another embodiment;

[0024] FIG4 is a schematic structural diagram of a rectifier module of a motion energy recovery and power supply device in one embodiment;

[0025] FIG5 is a schematic diagram of the structure of a power conversion circuit, a first control module, and a second control module of a motion energy recovery and power supply device in one embodiment;

[0026] 6 is a schematic structural diagram of a power conversion circuit, a first control module, and a second control module of a motion energy recovery and power supply device in another embodiment;

[0027] FIG. 7 is a diagram showing the effect of rectifying and filtering the three-phase AC power generated by the AC generator by the rectifying module in one embodiment.

[0028] Description of Reference Numerals

[0029] 100. Rotating parts;

[0030] 200. Generator;

[0031] F1, fuse; BD1 / BD2 / BD3, rectifier bridge; C21 / C22 / C23 / C27 / C28 / C1 / C2, capacitor element;

[0032] 400. Power conversion circuit; , a first switching tube; , a second switching tube; , safety switch tube;

[0033] L, inductor element; C, capacitor element; , the third switch tube; , a fourth switch tube;

[0034] 500, a first control module;

[0035] 600, second control module;

[0036] 700, integrated device;

[0037] 800. Energy storage battery. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0040] It is understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, without departing from the scope of this application, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0041] It can be understood that the “connection” in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0042] It can be understood that “at least one” means one or more, “plurality” means two or more, and “at least a portion of an element” means a part or all of an element.

[0043] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the relevant listed items.

[0044] As shown in FIG. 1 and FIG. 2 , in one embodiment, a motion energy recovery and power supply device is provided, the motion energy recovery and power supply device comprising a generator 200, a power conversion circuit 400, a first control module 500 and a second control module 600:

[0045] The generator 200 is connected between the rotating part 100 of the sports equipment and the power conversion circuit 400 of the sports energy recovery and power supply device. When the rotating part 100 rotates, the generator 200 generates electric energy.

[0046] The output end of the power conversion circuit 400 is connected to the device to be charged, and is used to convert the electric energy generated by the generator 200 into a DC voltage required by the device to be charged;

[0047] The power conversion circuit 400 includes a switch unit and a safety switch tube. , switch unit and safety switch tube Electrical connections;

[0048] The communication end of the first control module 500 is connected to the charged device, and the control end is connected to the safety switch tube. and a second control module 600, for generating a control circuit for controlling the safety switch tube when receiving the first charging information of the charged device. A first control signal for switching on and off, and generating a second control signal for controlling the second control module 600;

[0049] The communication end of the second control module 600 is connected to the switch unit, and is used to configure the voltage reference value according to the second control signal to control the duty cycle of the switch unit, thereby controlling the power conversion circuit 400 to output the DC voltage required by the charged device. The charged device can be, for example, but not limited to, various personal computers, laptops, smart phones, tablet computers, Internet of Things devices and portable wearable devices. The Internet of Things devices can be smart speakers, smart TVs, smart air conditioners, smart car-mounted devices, etc. Portable wearable devices can be smart watches, smart bracelets, head-mounted devices, etc.

[0050] For example, the generator 200 can be a DC generator, which generates electrical energy when the rotating component 100 rotates. The input end of the power conversion circuit 400 is connected to the DC generator, and the output end is connected to the charged device, which is used to convert the electrical energy generated by the DC generator into the DC voltage required by the charged device.

[0051] For example, the generator 200 can be a single-phase AC generator. When the rotating part 100 rotates, the single-phase AC generator generates electric energy. For example, the electric energy is single-phase AC power. A sports energy recovery and power supply device can be provided, including a rectifier module (not shown). The input end of the rectifier module is connected to the single-phase AC generator, which is used to rectify the single-phase AC power output by the single-phase AC generator to generate a DC voltage. The output end of the rectifier module is connected to the input end of the power conversion circuit 400. The output end of the power conversion circuit 400 is connected to the charged device, which is used to convert the electric energy generated by the single-phase AC generator into the DC voltage required by the charged device. Among them, the rotating shaft of the single-phase AC generator is connected to the rotating shaft of the rotating part 100, and the rotating part 100 of the sports equipment is used to drive the rotating shaft of the single-phase AC generator to rotate through the rotating shaft to output single-phase AC power to the rectifier module.

[0052] For example, the generator 200 can be a three-phase AC generator. When the rotating part 100 rotates, the three-phase AC generator generates electric energy. For example, the electric energy is three-phase AC. A sports energy recovery and power supply device can be provided, including a rectifier module (not shown). The input end of the rectifier module is connected to the three-phase AC generator, which is used to rectify the three-phase AC output by the three-phase AC generator to generate a DC voltage. The output end of the rectifier module is connected to the input end of the power conversion circuit 400. The output end of the power conversion circuit 400 is connected to the charged device, which is used to convert the electric energy generated by the three-phase AC generator into the DC voltage required by the charged device. Among them, the rotating shaft of the three-phase AC generator is connected to the rotating shaft of the rotating part 100, and the rotating part 100 of the sports equipment is used to drive the rotating shaft of the three-phase AC generator to rotate through the rotating shaft to output three-phase AC to the rectifier module.

[0053] As shown in Figures 1 and 2, in this embodiment, the power conversion circuit 400, the first control module 500 and the second control module 600 can be integrated on a circuit board. The circuit board can be set in a housing space of a shell. The shell can be set around the motion energy recovery and power supply device. The shell that accommodates the power conversion circuit 400, the first control module 500 and the second control module 600 can be regarded as an integrated device 700.

[0054] The first charging information refers to information such as the charging voltage required by the charged device.

[0055] When the rotating shaft of the rotating component 100 rotates, the rotating shaft of the generator 200 is driven to rotate, and the generator 200 generates corresponding electric energy and inputs it into the power conversion circuit. The first control module 500 is used to generate a first control signal to control the safety switch tube when receiving the first charging information of the charged device. The on-off of the engine and the generation of a second control signal are sent to the second control module 600, so that the second control module 600 configures the internal voltage reference value according to the second control signal, and controls the duty cycle of the switch unit according to the voltage reference value, thereby controlling the power conversion circuit 400 to convert the electric energy generated by the engine into the DC voltage required by the charging device.

[0056] As an example, the first control module can adopt a control chip with model WT6636; the second control module can adopt a control chip with model SQ33065 or LM5177. The corresponding functions of the first control module and the second control module can be implemented through the existing control chip, wherein the second control module supports PD (Power Delivery) fast charging protocol.

[0057] In some optional embodiments, the sports energy recovery and power supply device is a bicycle, an elliptical trainer, or other sports equipment with a rotating component 100 .

[0058] The elliptical trainer is also called an elliptical machine or an elliptical walker. It is used to simulate the movements of the human body when walking or running. It combines the movement methods of a stepper, a jogging machine and a rowing machine. The elliptical trainer has two moving foot pedals and two moving handles, which can exercise the upper and lower limbs at the same time.

[0059] As shown in FIG3 , the output end of the power conversion circuit 400 can also be connected to an energy storage battery 800, which is used to store the electric energy output by the power conversion circuit 400. The energy storage battery 800 can also be electrically connected to the electronic devices that require electricity on the sports equipment itself to power these electronic devices, such as the display screen of the sports equipment itself, to achieve green cycle and cable-free operation of the equipment, or the energy storage battery 800 can also power other charged devices.

[0060] As shown in Figure 4, when the generator 200 is a three-phase AC generator, the motion energy recovery and power supply device is configured to also include a rectifier module, which includes at least one rectifier bridge unit, a fuse F1 and a voltage stabilizing circuit: the first input end and the second input end of the rectifier bridge unit are commonly connected to the output end of the three-phase AC generator, and the output end of the rectifier bridge unit is connected to the input end of the fuse F1; the output end of the fuse F1 is connected to the input end of the voltage stabilizing circuit; the voltage stabilizing circuit is connected between the fuse F1 and the power conversion circuit 400.

[0061] The three-phase AC generator generates three-phase AC power L1, L2, and L3 which are input into the rectifier bridge unit respectively.

[0062] As an example, the rectifier bridge unit may include three rectifier bridges BD1, BD2, and BD3, wherein the first end of the rectifier bridge BD1, the first end of the rectifier bridge BD2, and the first end of the rectifier bridge BD3 together form the first input end of the rectifier bridge unit, the second end of the rectifier bridge BD1, the second end of the rectifier bridge BD2, and the second end of the rectifier bridge BD3 together form the second input end of the rectifier bridge unit, the third end of the rectifier bridge BD1, the third end of the rectifier bridge BD2, and the third end of the rectifier bridge BD3 together form the output end of the rectifier bridge unit and are connected to the input end of the fuse F1, wherein the fourth end of the rectifier bridge BD1, the fourth end of the rectifier bridge BD2, and the fourth end of the rectifier bridge BD3 are all grounded.

[0063] The voltage stabilizing circuit includes at least one capacitor. As an example, the voltage stabilizing circuit may include a capacitor C21 and capacitors C1, C2, C22, C23, C27, and C28 connected in parallel with the capacitor C21.

[0064] The three-phase AC power L1, L2, L3 generated by the three-phase AC generator is rectified and filtered after passing through the rectifier bridge unit, fuse F1 and voltage stabilizing circuit. The output pulsating DC is used as the input of the power conversion circuit 400. The output pulsating DC voltage is less than 60V.

[0065] FIG7 shows the effect of the rectification and filtering processing of the three-phase AC power L1, L2, and L3 generated by the three-phase AC generator by the rectification module.

[0066] As shown in FIG5 , in some optional embodiments, the switch unit includes a first switch tube And the second switch ;

[0067] The first switch The first end is connected to the output end of the rectifier module or the DC generator, and the second end is connected to the safety switch tube The first end of

[0068] Safety switch tube The second end is connected to the charged device;

[0069] The second switch The first end is connected to the first switch tube The second end is grounded.

[0070] In this embodiment, the output terminals of the second control module 600 are respectively connected to the first switch tube And the second switch , used to control the first switch tube according to the second control signal The duty cycle of the second switch The duty cycle of the DC voltage generating circuit 400 is controlled by the output terminal Output DC voltage.

[0071] As shown in FIG5 , in some optional embodiments, the power conversion circuit 400 further includes an inductor element L and a capacitor element C;

[0072] The first end of the inductor element L is connected to the first switch tube The second end is connected to the safety switch tube The first end of

[0073] A first end of the capacitor C is connected to a second end of the inductor L, and the second end is grounded.

[0074] As shown in FIG6 , in some optional embodiments, the switch unit further includes a third switch tube And the fourth switch ;

[0075] The third switch The first end of is connected to the second end of the inductor L, and the second end is connected to the charged device;

[0076] The fourth switch The first end of is connected to the second end of the inductor element L, and the second end is simultaneously connected to the first end of the capacitor element C and the first end of the safety switch tube.

[0077] In this embodiment, the control terminals of the second control module 600 are respectively connected to the first switch tube , the second switch tube , the third switch tube And the fourth switch , used to control the first switch tube according to the second control signal The duty cycle of the second switch tube The duty cycle of the third switch tube The duty cycle of the fourth switch The duty cycle of the DC voltage generating circuit 400 is controlled by the output terminal Output DC voltage.

[0078] The second control module 600 can also collect the safety switch management First End The second control module 600 configures the internal voltage reference value according to the second control signal and compares the voltage reference value with the actual voltage at the The actual voltage at the switch is compared with the actual voltage at the switch, and the first switch is controlled according to the comparison result. The duty cycle of the second switch tube The duty cycle of the third switch tube The duty cycle of the fourth switch The duty cycle of the DC voltage generating circuit 400 is controlled by the output terminal Output DC voltage.

[0079] In some optional embodiments, the first control module 500 includes a configuration channel line.

[0080] The configuration channel (CC) line generally consists of two connectors, one connector is connected to the input end of the charged device, and the other connector is connected to the output end of the DC voltage generating circuit. Among them, the connector of the configuration channel line usually has a special design to ensure correct plugging and connection, and also has the characteristics of waterproof, dustproof, high temperature resistance, etc.

[0081] In some optional embodiments, the communication end of the first control module 500 sends second charging information of the motion energy recovery and power supply device to the charged device via a configuration channel line; the second charging information includes parameter information such as the charging capacity of the motion energy recovery and power supply device.

[0082] The second charging information may include relevant parameter information of the motion energy recovery and power supply device, for example, may include information such as the charging rated power of the motion energy recovery and power supply device.

[0083] The second charging information is used to indicate the charging capacity possessed by the generator, rectifier module, power conversion circuit 400, first control module, second control module and other modules constituting the motion energy recovery and power supply device after cooperating with each other.

[0084] In some optional embodiments, the first control module obtains first charging information of the charged device from the charged device by configuring a channel line, and the first control module is configured to generate a second control signal when receiving the first charging information and send the second control signal to the second control module.

[0085] As an example, please continue to refer to FIG. 5 , according to the charging voltage required by the charged device, common charging gears are 5V, 9V, 12V, 15V and 20V. The first control module 500 communicates with the charged device through the configuration channel line, and the charged device transmits information through the configuration channel line to obtain the charging capacity of the current motion energy recovery and power supply device. On the other hand, the current motion energy recovery and power supply device can also obtain the charging voltage required by the charged device.

[0086] As an example, please continue to refer to Figures 5 and 6. After the first control module 500 is connected to the charged device through communication, it can continue to communicate with the charged device and continue to obtain the optimal charging voltage required by the charged device; according to the obtained optimal charging voltage, the first control module 500 can adjust the internal reference value of the second control module 600 through the second control signal, thereby controlling the second control module 600 to control the first switch tube , the second switch tube , the third switch tube And the fourth switch The duty cycle of the DC voltage generating circuit is adjusted to the optimal charging voltage required by the charged device, thereby achieving the purpose of quickly charging the charged device. As an example, when the charged device is a mobile phone, the optimal charging voltage required by the mobile phone within a certain power range is 9V. The first control module 500 obtains this information by configuring the channel line, and changes the voltage reference value inside the second control module 600 to 9V. The second control module 600 controls the first switch tube according to the voltage reference value of 9V. , the second switch tube , the third switch tube And the fourth switch The duty cycle of the DC voltage generating circuit is The output DC voltage is modulated to 9V. In addition, in another power range, the optimal charging voltage required by the mobile phone is 5V. The first control module 500 obtains this information by configuring the channel line, and changes the voltage reference value inside the second control module 600 to 5V. The second control module 600 controls the first switch tube according to the voltage reference value of 5V. , the second switch tube , the third switch tube And the fourth switch The duty cycle of the DC voltage generating circuit is The output DC voltage is adjusted to 5V. For the same charged device, the motion energy recovery and power supply device provided by this solution can adjust the output charging voltage according to the different optimal charging voltages required by the charged device for different charging capacities, thereby realizing fast charging of the charged device. The charged device can be a device such as a mobile phone, or a device such as a tablet computer or a laptop computer, or other devices that need to be charged. The motion energy recovery and power supply device proposed by the present invention can charge different charged devices, not limited to the types of charged devices described in the text.

[0087] In some optional embodiments, the first control module and the second control module are separate.

[0088] In some optional embodiments, the first control module and the second control module are integrated.

[0089] The above-mentioned sports energy recovery and power supply device, on the one hand, can store the collected electric energy in the energy storage battery. The electric energy stored in the battery can meet the self-power supply requirements of the electronic components of the sports equipment itself, such as display screens, and can also power other charged devices, thereby realizing the green cycle and cable-free operation of the equipment; on the other hand, the first control module can be used to obtain the first charging information of the charged device, so as to adaptively adjust the voltage reference value inside the second control module according to the actual needs of the charged device, so as to control the duty cycle of multiple switching tubes through the second control module, so as to achieve the purpose of adaptively adjusting the DC voltage finally output by the DC voltage generating circuit. The above-mentioned sports energy recovery and power supply device can convert the potential energy generated by the rotating parts of the sports equipment into electric energy, and use the first control module and the second control module to adaptively control the output DC voltage, thereby realizing the function of quickly and safely charging the charged device.

[0090] It should be understood that, although the steps in the flowcharts involved in the above embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0091] In the description of this specification, the technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features of the above-mentioned 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.

[0092] The above-described embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood 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 disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the patent of the present disclosure shall be subject to the attached claims.

Claims

1. A motion energy recovery and power supply device, characterized in that: The motion energy recovery and power supply device includes a generator, a power conversion circuit, a first control module and a second control module. The generator is connected between the rotating part of the sports equipment and the power conversion circuit, and when the rotating part rotates, the generator generates electrical energy; The output end of the power conversion circuit is connected to the device to be charged, and is used to convert the electric energy generated by the generator into the DC voltage required by the device to be charged; The power conversion circuit includes a switch unit and a safety switch tube, and the switch unit is electrically connected to the safety switch tube; The communication end of the first control module is connected to the charged device, and the control end is connected to the safety switch tube and the second control module, and is used to generate a first control signal for controlling the on and off of the safety switch tube and generate a second control signal for controlling the second control module when receiving the first charging information of the charged device; The communication end of the second control module is connected to the switch unit, and is used to configure a voltage reference value according to the second control signal to control the duty cycle of the switch unit, thereby controlling the power conversion circuit to output the DC voltage required by the charged device.

2. The motion energy recovery and power supply device according to claim 1, characterized in that: The motion energy recovery and power supply device also includes an energy storage battery, which is connected to the output end of the power conversion circuit to achieve electrical energy storage.

3. The motion energy recovery and power supply device according to claim 1, characterized in that: The generator is a DC generator.

4. The motion energy recovery and power supply device according to claim 1, characterized in that: The generator is an AC generator, and the motion energy recovery and power supply device also includes a rectifier module, the input end of the rectifier module is connected to the AC generator, and the output end is connected to the input end of the power conversion circuit.

5. The motion energy recovery and power supply device according to claim 1, characterized in that: The sports energy recovery and power supply device is a bicycle, an elliptical trainer or a sports device with a rotating part.

6. The motion energy recovery and power supply device according to claim 3, characterized in that: The switch unit includes a first switch tube and a second switch tube; The first end of the first switch tube is connected to the DC generator, and the second end is connected to the first end of the safety switch tube; The second end of the safety switch tube is connected to the charged device; The first end of the second switch tube is connected to the second end of the first switch tube, and the second end is grounded.

7. The motion energy recovery and power supply device according to claim 4, characterized in that: The switch unit includes a first switch tube and a second switch tube; The first end of the first switch tube is connected to the output end of the rectifier module, and the second end is connected to the first end of the safety switch tube; The second end of the safety switch tube is connected to the charged device; The first end of the second switch tube is connected to the second end of the first switch tube, and the second end is grounded.

8. The motion energy recovery and power supply device according to claim 6 or 7, characterized in that: The power conversion circuit also includes an inductor element and a capacitor element; The first end of the inductor element is connected to the second end of the first switch tube, and the second end is connected to the first end of the safety switch tube; The first end of the capacitor is connected to the second end of the inductor, and the second end is grounded.

9. The motion energy recovery and power supply device according to claim 8, characterized in that: The switch unit further includes a third switch tube and a fourth switch tube; The first end of the third switch tube is connected to the second end of the inductor element, and the second end is grounded; The first end of the fourth switch tube is connected to the second end of the inductor element, and the second end is simultaneously connected to the first end of the capacitor element and the first end of the safety switch tube.

10. The sports energy recovery and power supply device according to any one of claims 1 to 7, characterized in that: The first control module includes a configuration channel line.

11. The sports energy recovery and power supply device according to any one of claims 1 to 7, characterized in that: The first control module supports the PD fast charging protocol.

12. The motion energy recovery and power supply device according to claim 10, characterized in that: The first control module sends second charging information of the motion energy recovery and power supply device to the charged device through the configuration channel line; the second charging information includes parameter information of the motion energy recovery and power supply device.

13. The motion energy recovery and power supply device according to claim 10, characterized in that: The first control module obtains first charging information of the charged device from the charged device through the configuration channel line; The first control module is configured to generate a second control signal when receiving the first charging information, and send the second control signal to the second control module.

14. The sports energy recovery and power supply device according to any one of claims 1 to 7, characterized in that: The first control module and the second control module are separate.

15. The sports energy recovery and power supply device according to any one of claims 1 to 7, characterized in that: The first control module is integrated with the second control module.

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