Charging circuit, motion energy storage circuit board and motion energy storage equipment

Abstract

The utility model discloses a charging circuit, a motion energy storage circuit board and motion energy storage equipment, and relates to the technical field of motion power generation, and the charging circuit comprises a power generation assembly access end which is used for outputting electric energy by a power generation assembly; the power detection circuit is used for detecting the power value of the power generation assembly and outputting a corresponding power detection signal; the charging management circuit sets corresponding power conversion according to a power detection signal output by the access end of the power generation assembly detected by the detection circuit, and can intelligently adjust charging voltage stabilized and output to the battery in a segmented manner, so that the battery is ensured to be charged within a charging voltage range, and the charging efficiency of the battery is improved. When it is detected that the output power of the power generation assembly is larger than the preset power, the electric energy output by the power generation assembly is controlled to be converted into heat energy to be consumed, damage to a battery is avoided, the service life of the battery is effectively prolonged, and the electric energy generated through movement is effectively utilized.

Description

TECHNICAL FIELD

[0001] The utility model relates to motion power generation technical field, especially a kind of charging circuit, motion energy storage circuit board and motion energy storage equipment. BACKGROUND

[0002] There are many limitations in the existing motion power generation technology. Some simple motion power generation devices can realize basic energy conversion, but due to the simple and rough mechanical structure design, they cannot accurately adjust the power according to the different motion frequencies of users. For example, some early exercise bicycle power generation devices cannot generate effective current output when the speed is low, and when the speed is high, they may exceed the design limit of the generator, resulting in low efficiency, even damage to the motor and battery.

[0003] At the same time, the power conversion and energy storage system of most traditional exercise equipment lacks effective cooperative working mechanism. When the output power of the generator fluctuates due to the change of motion speed, the energy cannot be stably delivered to the storage equipment, resulting in unstable charging of the storage equipment and large voltage fluctuation, which not only affects the life and performance of the storage equipment, but also cannot guarantee to provide stable power supply for the subsequent connected equipment. SUMMARY

[0004] The main purpose of the utility model is to provide a charging circuit, a motion energy storage circuit board and a motion energy storage equipment, which aims to solve the problem that the voltage input to the storage equipment is in an unstable state when the user exercises at different frequencies, so that the power output by the mechanical structure of the exercise equipment is different.

[0005] To achieve the above purpose, the charging circuit provided by the utility model is applied to a motion energy storage equipment, which includes a power generation assembly, a motion assembly and a battery. The motion assembly is drivingly connected to the power generation assembly. When the motion assembly is operated by a user, it drives the power generation assembly to move, so as to convert the mechanical energy during motion into electrical energy and output. The charging circuit includes:

[0006] A power generation assembly access end, which is electrically connected to the power generation assembly, is used for the electrical energy output by the power generation assembly;

[0007] A power detection circuit, whose detection end is electrically connected to the power generation assembly access end, is used for detecting the power value of the power generation assembly and outputting the corresponding power detection signal;

[0008] A power supply processing circuit, whose input end is connected to the power generation assembly, and whose output end is connected to the battery;

[0009] a power conversion circuit, an input end of the power conversion circuit being connected with the power generation component access end;

[0010] a charging management circuit, an output end of the detection circuit being electrically connected with the charging management circuit, a control end of the charging management circuit being electrically connected with a controlled end of the power processing circuit and the power conversion circuit respectively; the charging management circuit is used for controlling the power processing circuit to adjust the voltage value of the power output by the power generation component to a voltage value corresponding to the power detection signal after output, so as to charge the battery according to the power detection signal;

[0011] the charging management circuit is further used for, according to the received power detection signal, when detecting that the output power of the power generation component is greater than a preset power, controlling the power conversion circuit to work, and then converting the power output by the power generation component into heat energy for consumption.

[0012] In an embodiment, the charging circuit further comprises:

[0013] a first voltage detection circuit, a detection end of the first voltage detection circuit being electrically connected with the battery, used for detecting the voltage of the battery and outputting a corresponding first voltage detection signal;

[0014] the charging management circuit is further used for, according to the received first voltage detection signal, when detecting that the voltage of the battery is greater than a preset voltage, controlling the power conversion circuit to work, and then converting the power output by the power generation component into heat energy for consumption.

[0015] In an embodiment, the power processing circuit comprises:

[0016] a rectification filtering circuit, an input end of the rectification filtering circuit being electrically connected with the power generation component access end, used for rectifying and filtering the alternating current power output by the power generation component and then outputting direct current power;

[0017] a charging control circuit, an input end of the charging control circuit being electrically connected with an output end of the rectification filtering circuit, an output end of the charging control circuit being electrically connected with a charging end of the battery, and a controlled end of the charging control circuit being electrically connected with a control end of the charging management circuit;

[0018] the charging management circuit is further used for generating a corresponding charging voltage setting signal according to the power detection signal, and outputting the charging voltage setting signal to the charging control circuit, so as to control the charging control circuit to adjust the received direct current power to a voltage value corresponding to the power detection signal after output, so as to charge the battery.

[0019] In an embodiment, the power detection circuit comprises:

[0020] A current detection circuit, a detection end of the current detection circuit is electrically connected with the input end of the power generation component, for detecting a current value of the power output by the power generation component, and outputting a corresponding current detection signal;

[0021] A second voltage detection circuit, a detection end of the second voltage detection circuit is electrically connected with the input end of the power generation component, for detecting a voltage value of the power output by the power generation component, and outputting a corresponding second voltage detection signal;

[0022] An integration circuit, an input end of the integration circuit is electrically connected with an output end of the current detection circuit and an output end of the second voltage detection circuit respectively, an output end of the integration circuit is electrically connected with the charging management circuit, for generating the power detection signal according to the received current detection signal and second voltage detection signal, and outputting to the charging management circuit.

[0023] In an embodiment, the power conversion circuit comprises:

[0024] A consumption resistance, the consumption resistance is electrically connected with the input end of the power generation component, for converting the power output by the power generation component into heat energy for consumption;

[0025] A switch circuit, the switch circuit is arranged between the input end of the power generation component and the consumption resistance, a controlled end of the switch circuit is electrically connected with the charging management circuit, the switch circuit is used for generating and outputting a turn-on control signal to control the switch circuit to turn on a line between the input end of the power generation component and the consumption resistance when the charging management circuit receives the power detection signal greater than a preset power.

[0026] The switch circuit is also used for generating and outputting a turn-on control signal to control the switch circuit to turn on a line between the input end of the power generation component and the consumption resistance according to the received first voltage detection signal when it is detected that the battery voltage is greater than a preset voltage.

[0027] In an embodiment, the switch circuit comprises:

[0028] A first diode, a first resistance, a second resistance, a third resistance, a first PMOS tube, a first triode and a first capacitor;

[0029] Anode of the first diode is electrically connected with the power generation assembly access end, cathode of the first diode is connected with the first end of the first resistance and the source of the first PMOS tube, the gate of the first PMOS tube is connected with the second end of the first resistance and the first end of the second resistance, the collector of the first triode is electrically connected with the second end of the second resistance, the first end of the third resistance is electrically connected with the charging management circuit, the second end of the third resistance is electrically connected with the base of the first triode and the first end of the first capacitor respectively, the second end of the first capacitor and the emitter of the first triode are connected and grounded, and the consumption resistance is connected with the drain of the first PMOS tube.

[0030] In an embodiment, the charging circuit further comprises:

[0031] A wireless communication module is connected with the charging management circuit, and is used for communicating with an external terminal.

[0032] The utility model discloses still propose a kind of motion energy storage circuit board, the motion energy storage circuit board includes the charging circuit as described above.

[0033] The utility model discloses still propose a kind of motion energy storage equipment, the motion energy storage equipment includes power generation assembly, motion component, battery and the motion energy storage circuit board as described above.

[0034] In an embodiment, the motion energy storage equipment further comprises:

[0035] A display component is electrically connected with the motion energy storage circuit board, and is used for prompting user.

[0036] The technical scheme of the utility model discloses a charging circuit, is applied to the motion energy storage equipment, the motion energy storage equipment includes power generation subassembly, motion subassembly and battery, the motion subassembly is driven with power generation subassembly connection, when the motion subassembly is operated by the user, drives power generation subassembly movement, to convert the mechanical energy of motion into electric energy and exports, the charging circuit includes: power generation subassembly access end, power generation subassembly access end with power generation subassembly electricity is connected for the electric energy of power generation subassembly output;Power detection circuit, the detection end of power detection circuit with power generation subassembly access end electricity is connected for detecting the power value of power generation subassembly, and exports corresponding power detection signal;Power processing circuit, the input of power processing circuit is connected with power generation subassembly, and the output of power processing circuit is connected with battery;Power conversion circuit, the input of power conversion circuit is connected with power generation subassembly access end;Charging management circuit, charging management circuit with the output of detection circuit electricity is connected, and the control end of charging management circuit is electrically connected with the controlled end of power processing circuit and power conversion circuit respectively;Charging management circuit is used for according to power detection signal control power processing circuit adjusts the electric energy voltage value of power generation subassembly output to the voltage value corresponding to power detection signal and exports to charge battery;Charging management circuit is also used for according to the power detection signal received, when detecting the output power of power generation subassembly is greater than the preset power, controls power conversion circuit to work, and the electric energy of power generation subassembly output is converted into heat energy and is consumed.Such, charging management circuit according to the power detection signal of detection circuit detection power generation subassembly access end output, sets corresponding power conversion, can intelligently segmented adjustment to battery steady voltage output charging voltage, ensure that battery charges in the charging voltage range, and when detecting the output power of power generation subassembly is greater than the preset power, control the electric energy of power generation subassembly output is converted into heat energy and is consumed, avoid damaging battery, effectively prolong the service life of battery and effectively utilize the electric energy of motion power generation. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, below will introduce the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other drawings according to the structure shown in these drawings.

[0038] Figure 1 The system schematic diagram of the charging circuit embodiment provided by the utility model;

[0039] Figure 2A structure schematic view of another embodiment of the charging circuit provided by the utility model;

[0040] Figure 3 A structure schematic view of still another embodiment of the charging circuit provided by the utility model;

[0041] Figure 4 A structure schematic view of still another embodiment of the charging circuit provided by the utility model;

[0042] Figure 5 A structure schematic view of still another embodiment of the charging circuit provided by the utility model;

[0043] Figure 6 A circuit structure schematic view of the switch circuit provided by the utility model;

[0044] Figure 7 A system schematic view of one embodiment of the motion energy storage device provided by the utility model.

[0045] Explanation of reference numerals:

[0046] 1, motion assembly; 2, power generation assembly; 3, power generation assembly access end; 4, power supply processing circuit; 41, rectification filter circuit; 42, charging control circuit; 5, battery; 6, power detection circuit; 61, current detection circuit; 62, second voltage detection circuit; 63, integration circuit; 7, power conversion circuit; 71, switch circuit; 72, consumption resistance; 8, charging management circuit; 9, first voltage detection circuit; 10, display circuit; 11, wireless communication circuit.

[0047] The implementation, functional features and advantages of the utility model will be further described with reference to the accompanying drawings in combination with embodiments. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0049] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0050] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0051] In today's society, with the increasing awareness of health and environmental protection, motion power generation as a technology to convert human body movement energy into electrical energy has received widespread attention. Through ingenious mechanical structure design, the motion equipment can effectively transmit the work done by the user in the movement process to the generator, thereby realizing the conversion of energy. This technology not only provides a new idea for the utilization of renewable energy, but also has important practical application value, for example, it can be applied to portable electronic device charging, outdoor lighting and power supply for some small appliances and the like.

[0052] However, the existing motion power generation equipment still faces many challenges in actual operation. One of the most prominent problems is the influence of user's movement frequency on equipment output power. Due to the differences in movement ability, movement habit and movement state of different users, their movement frequency will fluctuate within a certain range. This leads to the change of the power output by the motion equipment through the mechanical structure, and then makes the voltage input to the power storage equipment unstable. The instability of voltage not only affects the charging efficiency and service life of the power storage equipment, but also may cause the connected electrical equipment to malfunction, which seriously limits the wide application of motion power generation technology.

[0053] Reference Figures 1 to 7 The utility model proposes a kind of charging circuit, applied to motion energy storage equipment, the motion energy storage equipment includes power generation component 2, motion component 1 and battery 5, the motion component 1 with the power generation component 2 drive connection, the motion component 1 when being operated by user, drive the power generation component 2 movement, to convert mechanical energy when moving into electrical energy and output, the charging circuit includes:

[0054] Power generation component access end 3, the power generation component access end 3 with the power generation component 2 is connected, for the electrical energy output by the power generation component 2;

[0055] A power detection circuit 6, a detection end of the power detection circuit 6 is electrically connected with the power generation assembly access end 3, for detecting the power value of the power generation assembly 2, and outputting a corresponding power detection signal;

[0056] A power supply processing circuit 4, an input end of the power supply processing circuit 4 is connected with the power generation assembly 2, and an output end of the power supply processing circuit 4 is connected with the battery 5;

[0057] A power conversion circuit 7, an input end of the power conversion circuit 7 is connected with the power generation assembly access end 3;

[0058] A charging management circuit 8, the charging management circuit 8 is electrically connected with the output end of the detection circuit, a control end of the charging management circuit 8 is respectively electrically connected with the controlled end of the power supply processing circuit 4 and the power conversion circuit 7; the charging management circuit 8 is used for controlling the power supply processing circuit 4 to adjust the output power voltage value of the power generation assembly 2 to the voltage value corresponding to the power detection signal after output, so as to charge the battery 5 according to the power detection signal;

[0059] The charging management circuit 8 is also used for receiving the power detection signal, and when it is detected that the output power of the power generation assembly 2 is greater than the preset power, the power conversion circuit 7 is controlled to work, and the output power of the power generation assembly 2 is converted into heat energy for consumption.

[0060] It is worth mentioning that the power generation assembly 2 comprises an excitation assembly, which functions to provide a magnetic field, which can be a permanent magnet or an electromagnet. The movement assembly 1 is controlled by the user of the movement device, which cuts the magnetic lines of force in the magnetic field to generate an induced electromotive force. The movement assembly 1 can be made of a metal material. The power generation assembly 2 can be regarded as a generator, in which the movement assembly 1 is the motor rotor. The movement energy storage device can be a spin bike, the pedals of which are connected to the movement assembly 1 through a mechanical structure, and the user pedals the pedals to drive the movement assembly 1 to rotate. The movement assembly 1 cuts the magnetic lines of force to generate eddy currents, and the eddy currents generate resistance when moving relative to the excitation assembly. The resistance is in a positive proportional relationship with the current in the electrical energy, thereby prompting the power generation assembly 2 to generate electrical energy. The electrical energy includes current and voltage. The power generation assembly 2 can be a direct current generator or an alternating current generator. Correspondingly, the electrical energy can be alternating current energy or direct current energy. The charging management circuit 8 can be implemented by a charging management chip, an MCU and its peripheral circuit, a DSP (Digital Signal Process), an FPGA (Field Programmable Gate Array), a SOC (System On Chip), etc. The power detection circuit 6 can be implemented by a single component such as a power meter, or by multiple components such as a current transformer and a voltage transformer, or by a voltage dividing network circuit and a current transformer. According to the calculation formula of power, the size of the power is determined after calculation (such as P=UI, and for the power generation assembly 2 in alternating current, the power factor and other factors need to be considered).

[0061] The power generation assembly access end 3 is electrically connected to the output end of the power generation assembly 2, and is electrically connected to the power detection circuit 6 and the charging management circuit 8. The power generation assembly 2 generates eddy currents by cutting the magnetic lines of force of the movement assembly 1 moved by the user, thereby prompting the power generation assembly 2 to generate electrical energy, which is output to the power generation assembly access end 3. The power detection circuit 6 detects the power value of the electrical energy output to the power generation assembly access end 3, and outputs a power detection signal corresponding to the electrical energy to the charging management circuit 8. The charging management circuit 8 adjusts the voltage value of the electrical energy output by the power generation assembly 2 to a voltage value corresponding to the power detection signal according to the preset corresponding power value conversion voltage value range table, and then stabilizes the output to charge the battery 5. The charging management circuit 8 is also used to control the power conversion circuit 7 to work when the power detection signal is greater than a preset power threshold, so as to convert the electrical energy output by the power generation assembly 2 into heat energy for consumption.

[0062] The power value conversion voltage value range table is set with a plurality of different power value intervals and corresponding voltage values. The charging management circuit 8 can be assisted by an internal crystal oscillator element, and the power detection signal detected according to the predetermined time is converted into a stable voltage value in real time by the power value conversion voltage value range table, so as to charge the battery 5 after a series of operations such as rectification, filtering and voltage reduction. The charging management circuit 8 can also be charged according to the power value interval and the corresponding voltage value selected by the user. The battery 5 is charged after selecting a fixed voltage value. The charging management circuit 8 can be designed flexibly according to the actual needs to meet the charging needs in different application scenarios. Therefore, it is not limited here. It is worth mentioning that the power generated by the user's movement is irregular at this time, but the current output to the battery 5 will change when the voltage stabilizes from the power supply processing circuit 4 to the battery 5.

[0063] In summary, the charging circuit can automatically adjust the charging voltage value according to the power value of the power generated by the user's irregular movement, so as to ensure the charging efficiency and the safety of the battery 5 with stable voltage. At the same time, when the detected power value exceeds the preset safety threshold, the power can be converted into heat energy for consumption, avoiding the damage or safety hazard of internal components caused by excessive power. This design not only improves the charging efficiency, but also greatly enhances the reliability of the device and the user experience.

[0064] In an embodiment, referring to Figure 2 , the charging circuit further comprises:

[0065] A first voltage detection circuit 9, the detection end of the first voltage detection circuit 9 is electrically connected with the battery 5, for detecting the voltage of the battery 5, and outputting a corresponding first voltage detection signal;

[0066] The charging management circuit 8 is further used for receiving the first voltage detection signal, and when the voltage of the battery 5 is greater than the preset voltage, the power conversion circuit 7 is controlled to work, and the output power of the power generation assembly 2 is converted into heat energy for consumption.

[0067] In the embodiment, the first voltage detection circuit 9 can be implemented by a voltage divider network circuit or a voltage sensor. Since the battery 5 has limited storage capacity, in order to avoid overcharging of the battery 5, the first voltage detection circuit 9 detects the voltage of the battery 5 and outputs a corresponding first voltage detection signal. When the detected first voltage detection signal is greater than a preset full charging voltage threshold, the charging management circuit 8 controls the power conversion circuit 7 to work, and the power conversion circuit 7 converts the power output by the power generation assembly 2 to heat energy for consumption. In this way, the battery 5 can be protected from damage due to overcharging, and the safety and reliability of the entire charging circuit are improved.

[0068] Further, referring to Figure 3 , the power supply processing circuit 4 comprises:

[0069] a rectification and filtering circuit 41, an input end of the rectification and filtering circuit 41 being electrically connected with the power generation assembly access end 3, for rectifying and filtering alternating current power output by the power generation assembly 2 and outputting direct current power;

[0070] a charging control circuit 42, an input end of the charging control circuit 42 being electrically connected with an output end of the rectification and filtering circuit 41, an output end of the charging control circuit 42 being electrically connected with a charging end of the battery 5, and a controlled end of the charging control circuit 42 being electrically connected with a control end of the charging management circuit 8;

[0071] The charging management circuit 8 is further configured to generate a corresponding charging voltage setting signal according to the power detection signal and output the charging voltage setting signal to the charging control circuit 42, so as to control the charging control circuit 42 to adjust the received direct current power to a voltage value corresponding to the power detection signal and then output the direct current power, so as to charge the battery 5.

[0072] In the embodiment, the rectification filter circuit 41 can be realized by an active filter circuit or an LC filter circuit in cooperation with a power management chip, and the charging control circuit 42 can be realized by a Buck step-down circuit or a Buck-boost polarity inversion circuit or a Buck-boost circuit. Specifically, when the power generation assembly 2 is an alternator, the power generation assembly 2 generates alternating current energy, and thus the rectification filter circuit 41 is required to rectify and filter the alternating current energy output by the power generation assembly 2 and output direct current energy. The charging management circuit 8 generates a corresponding charging voltage setting signal according to the power detection signal and outputs the charging voltage setting signal to the charging control circuit 42, so that the charging control circuit 42 adjusts the received direct current energy to a voltage value corresponding to the power detection signal and outputs the direct current energy, so as to charge the battery 5. The charging management circuit 8 converts the power detection signal into a voltage value range table according to a preset power value, generates a corresponding charging voltage setting signal, and controls the charging control circuit 42 to adjust the received direct current energy and output a corresponding stable voltage value.

[0073] Further, referring to Figure 4 , the power detection circuit 6 comprises:

[0074] a current detection circuit 61, a detection end of the current detection circuit 61 being electrically connected with the power generation assembly access end 3, for detecting a current value of the power generation assembly 2 and outputting a corresponding current detection signal;

[0075] a second voltage detection circuit 62, a detection end of the second voltage detection circuit 62 being electrically connected with the power generation assembly access end 3, for detecting a voltage value of the power generation assembly 2 and outputting a corresponding second voltage detection signal;

[0076] an integration circuit 63, input ends of the integration circuit 63 being electrically connected with an output end of the current detection circuit 61 and an output end of the second voltage detection circuit 62 respectively, and an output end of the integration circuit 63 being electrically connected with the charging management circuit 8, for generating the power detection signal according to the received current detection signal and second voltage detection signal and outputting the power detection signal to the charging management circuit 8.

[0077] In the embodiment, the current detection circuit 61 can be composed of a Hall sensor which can accurately measure the current value of the power output by the power generation assembly 2 to the power generation assembly access end 3 and convert it into a corresponding current detection signal. The second voltage detection circuit 62 can be composed of a resistance voltage dividing network circuit and an analog-to-digital converter. The resistance voltage dividing network circuit reduces the voltage of the power output by the power generation assembly 2 to a range acceptable by the analog-to-digital converter, and the analog-to-digital converter converts the analog voltage signal into a digital voltage signal, i.e. a second voltage detection signal. The integrated circuit 63 can be implemented by the charge management circuit 8, or can be implemented by another component such as a microprocessor or an application-specific integrated circuit. The integrated circuit 63 receives signals from the current detection circuit 61 and the second voltage detection circuit 62, calculates the actual power of the power generation assembly 2 through an internal algorithm, converts the power detection signal, and outputs it to the charge management circuit 8.

[0078] Further, with reference to Figure 5 , the power conversion circuit 7 comprises:

[0079] a consumption resistor 72 which is electrically connected to the power generation assembly access end 3 and is used to convert the output power of the power generation assembly 2 into heat energy for consumption;

[0080] a switch circuit 71 which is arranged between the power generation assembly access end 3 and the consumption resistor 72, and the controlled end of the switch circuit 71 is electrically connected to the charge management circuit 8. The switch circuit 71 is used to generate and output a conduction control signal when the charge management circuit 8 receives a power detection signal greater than a preset power, so as to control the switch circuit 71 to turn on the circuit between the power generation assembly access end 3 and the consumption resistor 72.

[0081] The switch circuit 71 is also used to generate and output a conduction control signal according to the received first voltage detection signal, so as to control the switch circuit 71 to turn on the circuit between the power generation assembly access end 3 and the consumption resistor 72 when it is detected that the voltage of the battery 5 is greater than a preset voltage.

[0082] In the embodiment, the consumption resistor 72 can be set as a variable resistor or a fixed resistor to meet the requirements of different application scenarios. The switch circuit 71 can be set as a MOS tube switch circuit 71 or a relay switch circuit 71 to adapt to different current and voltage level requirements. When the MOS tube switch circuit 71 is used, its on-resistance is small and its power consumption is low, which is suitable for small current scenarios. When the relay switch circuit 71 is used, its carrying capacity is strong, which is suitable for large current scenarios.

[0083] In the embodiment, the switch circuit 71 is arranged in the circuit between the power generation assembly access end 3 and the consumption resistor 72. When the power detection signal received by the charging management circuit 8 is greater than the preset power threshold, an on control signal is generated and output to the switch circuit 71 to control the switch circuit 71 to turn on the circuit between the power generation assembly access end 3 and the consumption resistor 72. Thus, when the power of the power generation electric energy of the power generation assembly 2 exceeds the maximum bearing power of the power conversion circuit 7, the power generation electric energy can be output to the consumption resistor 72 for consumption. For example, when the charging management circuit 8 controls the power conversion circuit 7 to convert the electric energy into a 3V stabilized voltage, the maximum bearing current of the power conversion circuit 7 is 15A, and the maximum bearing power of the power conversion circuit 7 is 45W at this time. The charging management circuit 8 receives the first voltage detection signal generated by the first voltage detection circuit 9 when detecting the voltage of the battery 5. When the charging management circuit 8 detects that the first voltage detection signal is greater than the preset voltage threshold, the power conversion circuit 7 is controlled to be turned on, and the power generation electric energy is output to the consumption resistor 72 for consumption.

[0084] Further, referring to Figure 6 , the switch circuit 71 comprises:

[0085] a first diode D1, a first resistor R1, a second resistor R2, a third resistor R3, a first PMOS tube Q1, a first triode Q2, and a first capacitor C1;

[0086] The anode of the first diode Q1 is electrically connected with the power generation assembly access end 3. The cathode of the first diode Q1 is connected with the first end of the first resistor R1 and the source of the first PMOS tube Q1. The gate of the first PMOS tube Q1 is connected with the second end of the first resistor R1 and the first end of the second resistor R2. The collector of the first triode Q2 is electrically connected with the second end of the second resistor R2. The first end of the third resistor R3 is electrically connected with the charging management circuit 8. The second end of the third resistor R3 is electrically connected with the base of the first triode Q2 and the first end of the first capacitor C1, respectively. The second end of the first capacitor C1 and the emitter of the first triode Q2 are connected and grounded. The consumption resistor 72 is connected with the drain of the first PMOS tube Q1.

[0087] In the embodiment, the first diode Q1 is used for preventing the power current from flowing backward, the first resistor R1 and the second resistor R2 provide a current channel and provide initial current and initial voltage for the first triode Q2 and the first PMOS Q1; the first capacitor C1 is used for voltage stabilization; the first triode Q2 and the first PMOS Q1 are used for turning on or turning off according to the output on-off control signal output by the charging management chip, so as to control whether the power is output to the consumption resistor 72 for heat consumption.

[0088] Further, referring to Figure 3 , the charging circuit further comprises:

[0089] The wireless communication circuit 11 is electrically connected with the charging management circuit 8 and is used for communicating with an external terminal.

[0090] In the embodiment, the wireless communication circuit 11 adopts Bluetooth, Wi-Fi or Zigbee communication protocol, so as to realize wireless connection and data transmission with an external terminal such as a smart phone, a tablet computer or a computer. Through the wireless communication circuit 11, a user can monitor the charging state of the charging circuit, the battery 5 power, the charging speed and the like on the external terminal in real time, and can also adjust the corresponding voltage value converted by the power conversion circuit 7 by using the external terminal, so as to realize accurate control on the charging process.

[0091] The utility model discloses still propose a kind of motion energy storage circuit board, the motion energy storage circuit board includes above-mentioned charging circuit, and the specific structure of the charging circuit refers to above-mentioned embodiment, since the motion energy storage circuit board of the present application adopts all technical solutions of above-mentioned all embodiments, at least have all beneficial effects brought by the technical solutions of above-mentioned embodiments, here no longer repeat.

[0092] The utility model discloses still propose a kind of motion energy storage equipment, the motion energy storage circuit board includes above-mentioned motion energy storage circuit board, and the specific structure of the motion energy storage circuit board refers to above-mentioned embodiment, since the motion energy storage circuit board of the present application adopts all technical solutions of above-mentioned all embodiments, at least have all beneficial effects brought by the technical solutions of above-mentioned embodiments, here no longer repeat. Wherein, the motion energy storage equipment includes power generation component 2, motion component 1, battery 5 and as above-mentioned motion energy storage circuit board.

[0093] In an embodiment, referring to Figure 7 , the motion energy storage equipment further comprises:

[0094] Display component 10, the display component 10 is electrically connected with the motion energy storage circuit board and is used for prompting user.

[0095] Specifically, the display component 10 can be composed of an LED lamp or an LCD liquid crystal display screen, to display information such as a charging state, a remaining power, motion data, etc., so that a user can intuitively understand the running condition of the device.

[0096] The above merely describes the exemplary embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation, direct / indirect application in other related technical fields, etc. made by using the present application specification and drawings under the technical concept of the present application are included in the patent protection scope of the present application.

Claims

1. A charging circuit applied to a motion energy storage device, the motion energy storage device comprising a power generation component, a motion component, and a battery, wherein the motion component is drivenly connected to the power generation component, and when operated by a user, the motion component drives the power generation component to move, thereby converting the mechanical energy during movement into electrical energy and outputting it, characterized in that... The charging circuit includes: A power generation component access terminal is electrically connected to the power generation component and is used to output electrical energy from the power generation component. A power detection circuit, wherein the detection end of the power detection circuit is electrically connected to the access end of the power generation component, is used to detect the power value of the power generation component and output a corresponding power detection signal; A power processing circuit, wherein the input terminal of the power processing circuit is connected to the power generation component, and the output terminal of the power processing circuit is connected to the battery; A power conversion circuit, wherein the input terminal of the power conversion circuit is connected to the access terminal of the power generation component; A charging management circuit is provided, wherein the output terminal of the charging management circuit is electrically connected to the detection circuit, and the control terminal of the charging management circuit is electrically connected to the controlled terminals of the power processing circuit and the power conversion circuit, respectively. The charging management circuit is used to control the power processing circuit to adjust the voltage value of the power generation component output by the power generation component to the voltage value corresponding to the power detection signal, and then output it to charge the battery. The charging management circuit is further configured to, based on the received power detection signal, control the power conversion circuit to operate when the output power of the power generation component is detected to be greater than a preset power, and then convert the electrical energy output by the power generation component into heat energy for consumption.

2. The charging circuit as described in claim 1, characterized in that, The charging circuit also includes: A first voltage detection circuit, wherein the detection terminal of the first voltage detection circuit is electrically connected to the battery, is used to detect the voltage of the battery and output a corresponding first voltage detection signal; The charging management circuit is further configured to, based on the received first voltage detection signal, control the power conversion circuit to operate when the battery voltage is detected to be greater than a preset voltage, and then convert the electrical energy output by the power generation component into heat energy for consumption.

3. The charging circuit as described in claim 1, characterized in that, The power processing circuit includes: A rectifier and filter circuit, wherein the input terminal of the rectifier and filter circuit is electrically connected to the input terminal of the power generation component, and is used to rectify and filter the AC power output by the power generation component to output DC power. A charging control circuit, wherein the input terminal of the charging control circuit is electrically connected to the output terminal of the rectifier and filter circuit, the output terminal of the charging control circuit is electrically connected to the charging terminal of the battery, and the controlled terminal of the charging control circuit is electrically connected to the control terminal of the charging management circuit. The charging management circuit is further configured to generate a corresponding charging voltage setting signal based on the power detection signal, output it to the charging control circuit, and control the charging control circuit to adjust the received DC power to a voltage value corresponding to the power detection signal before outputting it to charge the battery.

4. The charging circuit as described in claim 1, characterized in that, The power detection circuit includes: A current detection circuit, wherein the detection end of the current detection circuit is electrically connected to the access end of the power generation component, is used to detect the electrical current value output by the power generation component and output a corresponding current detection signal. The second voltage detection circuit has its detection terminal electrically connected to the access terminal of the power generation component. It is used to detect the output voltage value of the power generation component and output a corresponding second voltage detection signal. An integrated circuit is provided, wherein the input terminal of the integrated circuit is electrically connected to the output terminal of the current detection circuit and the output terminal of the second voltage detection circuit, and the output terminal of the integrated circuit is electrically connected to the charging management circuit. The integrated circuit is used to generate the power detection signal based on the received current detection signal and the second voltage detection signal, and output it to the charging management circuit.

5. The charging circuit as described in claim 2, characterized in that, The power conversion circuit includes: A heat dissipation resistor is electrically connected to the input terminal of the power generation component and is used to convert the electrical energy output by the power generation component into heat energy for consumption. A switching circuit is provided, which is disposed between the power generation component input terminal and the consumption resistor. The controlled terminal of the switching circuit is electrically connected to the charging management circuit. The switching circuit is used to generate and output a conduction control signal when the charging management circuit receives a power detection signal that is greater than a preset power, thereby controlling the switching circuit to conduct the line between the power generation component input terminal and the consumption resistor. The switching circuit is further configured to generate and output a conduction control signal based on the received first voltage detection signal, when the battery voltage is detected to be greater than a preset voltage, to control the switching circuit to conduct the line between the power generation component access terminal and the consumption resistor.

6. The charging circuit as described in claim 5, characterized in that, The switching circuit includes: A first diode, a first resistor, a second resistor, a third resistor, a first PMOS transistor, a first transistor, and a first capacitor; The anode of the first diode is electrically connected to the input terminal of the power generation component. The cathode of the first diode is connected to the first terminal of the first resistor and the source of the first PMOS transistor. The gate of the first PMOS transistor is connected to the second terminal of the first resistor and the first terminal of the second resistor. The collector of the first transistor is electrically connected to the second terminal of the second resistor. The first terminal of the third resistor is electrically connected to the charging management circuit. The second terminal of the third resistor is electrically connected to the base of the first transistor and the first terminal of the first capacitor. The second terminal of the first capacitor and the emitter of the first transistor are connected and grounded. The dissipation resistor is connected to the drain of the first PMOS transistor.

7. The charging circuit as described in claim 1, characterized in that, The charging circuit also includes: A wireless communication circuit, electrically connected to the charging management circuit, is used to communicate with an external terminal.

8. A motion energy storage circuit board, characterized in that, The motion energy storage circuit board includes the charging circuit as described in any one of claims 1 to 7.

9. A motion energy storage device, characterized in that, The motion energy storage device includes a power generation component, a motion component, a battery, and a motion energy storage circuit board as described in claim 8.

10. The motion energy storage device as described in claim 9, characterized in that, The motion energy storage device also includes: The display component is electrically connected to the motion energy storage circuit board and is used to prompt the user.

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