Energy storage charging shoe
By combining piezoelectric ceramic sheets, films and signal processing circuits in the shoes, using elastic collection devices to convert the mechanical energy when walking into electrical energy, and monitoring the user's status through the safety control unit, the instability and safety of the electrical energy output of traditional piezoelectric shoes is solved. The problem of insufficient sexuality has achieved stable and safe charging services.
Patent Information
- Application Number
- CN202411505708.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2024-12-17
AI Technical Summary
Traditional piezoelectric shoes lack power storage function, and the power output is easily affected by the user's walking state, and lacks stability and safety.
Design an energy storage charging shoe, combining a variety of piezoelectric materials, a single line collection device, and energy storage and electrical energy output circuits, including piezoelectric ceramic sheets, piezoelectric films, signal processing circuits, safety control units and electrical energy output units, through elasticity The collection device converts the mechanical energy during walking into electrical energy, and monitors the user's status and protects the circuit safety through the safety control unit.
It realizes charging the mobile phone in different states, ensuring the stability and safety of the power output, avoiding the impact of the power output due to the walking state, and providing convenient and safe charging services.
Smart Images
Figure CN119138677A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of shoe manufacturing, and in particular to a pair of energy storage and charging shoes. Background Art
[0002] With the advancement of technology and people's higher requirements for quality of life, traditional shoes can no longer meet the needs in specific environments. For example, when people are outdoors, they often carry portable electronic digital products to improve the comfort of outdoor activities. However, running out of power in electronic devices is a common problem. Ordinary shoes cannot meet the charging needs, but rechargeable energy storage shoes can solve this problem and provide users with charging services.
[0003] Piezoelectric power generation can convert mechanical energy into electrical energy. If a micro piezoelectric device is placed in the sole of a shoe, the mechanical energy of walking can be converted into electrical energy to charge external smart devices. However, traditional piezoelectric shoes lack the function of storing electricity, and the output of electrical energy is easily affected by the user's walking state, and the output lacks stability and safety. Summary of the invention
[0004] In view of this, the present application provides an energy storage charging shoe, which charges mobile phones in various states by combining multiple piezoelectric materials, a single-row collection device, and energy storage and power output circuits, thereby solving the technical problems that traditional piezoelectric shoes lack power storage function, power output is easily affected by the user's walking state, and the output lacks stability and safety.
[0005] To achieve the above object, the present invention provides the following technical solutions: An energy storage charging shoe comprises: a shoe body and an energy storage charging device arranged on the shoe body; The shoe body comprises a sole, an upper and an insole, a battery box is arranged at the heel of the sole, and the battery box has a wiring hole; The energy storage and charging device includes a piezoelectric mechanism, an energy storage unit, a safety control unit and an electric energy output unit. The output end of the piezoelectric mechanism is electrically connected to the input end of the energy storage unit, and the energy storage unit is electrically connected to the electric energy output unit; the piezoelectric mechanism includes a piezoelectric ceramic sheet, a piezoelectric film and a signal processing circuit. The piezoelectric ceramic sheet is fixed between the elastic collecting device and the upper surface of the sole. The piezoelectric ceramic sheet and the piezoelectric film are electrically connected to the signal processing circuit arranged in the battery box through connecting wires to convert pressure into electric energy input into the energy storage unit. The energy storage unit is used to manage and control the energy storage process. The safety control unit is used to control the charging and discharging operations, detect the user's status information, and is also used to short-circuit protect the circuit board.
[0006] Further, the signal processing circuit includes a first conversion circuit and a second conversion circuit; The input end of the first conversion circuit is electrically connected to the output end of the piezoelectric ceramic. The first conversion circuit includes a rectifier module composed of a first capacitor, a second capacitor, a third capacitor, a first diode, a second diode and a third diode, and a filter circuit composed of a first inductor, a first resistor, a second resistor, a third resistor, a fourth capacitor, a fifth capacitor and a voltage regulator diode, and a first DC-DC module. The first end of the first capacitor is connected in parallel with the first end of the first inductor and then electrically connected to the output end of the piezoelectric ceramic. The second end of the first capacitor is connected in parallel with the first end of the second diode, the second end of the first diode and the first end of the second capacitor. The first end of the first diode is connected in parallel with the first end of the third capacitor. The first end is connected in parallel, the second end of the third capacitor is connected in parallel with the second end of the second diode and the first end of the third diode, the second end of the third diode is connected in parallel with the second end of the second capacitor, the second end of the first inductor is connected in parallel with the first end of the fourth capacitor and the first end of the first resistor, the second end of the fourth capacitor is connected in parallel with the first end of the fifth capacitor and the first end of the second resistor to form an output end of the first conversion circuit, the second end of the first resistor and the second end of the fifth capacitor are connected in parallel with the first end of the voltage regulator diode and the first end of the third resistor, the second end of the voltage regulator diode is connected in parallel with the second end of the second resistor, and the second end of the third resistor forms another output end of the first conversion circuit; The input end of the second conversion circuit is electrically connected to the output end of the piezoelectric film, and the piezoelectric film is fixed between the sole and the insole interlayer near the front end of the sole and the bend of the sole. The second conversion circuit includes a multi-voltage rectifier module and a second DC-DC module, and the output end of the multi-voltage rectifier module is electrically connected to the input end of the second DC-DC module.
[0007] Furthermore, the first DC-DC module includes an eleventh capacitor, a twelfth capacitor, a thirteenth capacitor, a fourteenth capacitor, a fourth resistor, a fifth resistor, a ninth diode, a second inductor and a first boost chip. The first end of the eleventh capacitor, the first end of the twelfth capacitor, the first end of the fourth resistor and the first end of the ninth diode are connected in parallel to form the output end of the first DC-DC module. The second end of the eleventh capacitor and the second end of the twelfth capacitor are both grounded. The fifth resistor is connected between the second end of the fourth resistor and the ground. The second end of the ninth diode is connected in parallel to the LX pin of the first boost chip and the first end of the second inductor. The second end of the second inductor, the first end of the thirteenth capacitor and the first end of the fourteenth capacitor are connected in parallel to the second end of the third resistor. The second end of the thirteenth capacitor and the second end of the fourteenth capacitor are grounded, and the VIN pin and EN pin of the first boost chip.
[0008] Furthermore, the energy storage unit includes a charge management circuit and an energy storage battery; The charging management circuit includes an eleventh resistor, a twelfth resistor, a light emitting diode, a sixteenth capacitor, a seventeenth capacitor and a charging management chip. The first end of the eleventh resistor is connected to the SELI pin of the charging management chip, the second end of the eleventh resistor is connected to the BATT pin of the charging management chip through a switch, the first end of the sixteenth capacitor and the first end of the twelfth resistor are connected in parallel to the IN pin of the charging management chip, the second end of the sixteenth capacitor is grounded, the second end of the twelfth resistor is connected to the CHG pin of the charging management chip through a light emitting diode, the seventeenth capacitor is connected in parallel to both ends of the energy storage battery, and the input end of the energy storage battery is connected to the BATT pin of the charging management chip.
[0009] Furthermore, the security control unit includes a user status detection module, a main control module and a security reminder module; The user state detection module includes a posture sensor and a pressure sensor. The posture sensor is used to detect the posture information of the user, and the pressure sensor is used to detect the foot pressure information of the user, and transmits the detected user posture information and the user's foot pressure information to the main control module; The main control module is used to determine the user's motion posture based on the detection information, and control the safety reminder module to give a light reminder, and is also used to control whether to charge based on the key signal; The safety reminder module includes an LED flashing light, which is connected to the main control module and is used to flash a light reminder at a preset frequency according to a control signal from the main control module.
[0010] Furthermore, a ventilation and air permeability device is also provided on the sole, and the ventilation and air permeability device includes air holes arranged on both sides of the sole, and waterproof and air permeable valves are provided at the air holes.
[0011] Furthermore, the power output unit includes a relay and a USB interface module; The relay is driven by a transistor drive circuit, the control end of the relay is electrically connected to the main control module, the moving contact of the relay is electrically connected to the BATT pin of the charging management chip, the first static contact of the relay is electrically connected to the input end of the energy storage battery, the USB interface module includes a USB interface and an RC filter circuit, the input end of the USB interface is electrically connected to one end of the RC filter circuit, and the other end of the RC filter circuit is electrically connected to the second static contact of the relay.
[0012] Furthermore, the elastic collecting device includes an upper fixed plate, a compression spring and a lower fixed plate. The upper fixed plate is arranged on the upper surface of the sole, one end of the compression spring is fixedly connected to the upper fixed plate, and the other end of the compression spring is fixedly connected to the lower fixed plate. The lower fixed plate is arranged on the piezoelectric ceramic sheet.
[0013] It can be seen from the above technical solution that the advantages of the present invention are: In this application, the kinetic energy of the user when walking is fully utilized by combining piezoelectric ceramics and piezoelectric films, and the kinetic energy is converted into electrical energy for storage, so that the user can conveniently and safely charge external devices. In addition, an elastic collection device is provided to make the kinetic energy collection more sufficient, and the user's real-time status information is monitored and safety reminders are provided at the same time, so that the power output is not affected by the user's walking status, ensuring the user's sports safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.
[0015] Figure 1 This is a schematic diagram of the structure of this application.
[0016] Figure 2 This is a schematic diagram of the circuit structure of the first conversion circuit of the present application.
[0017] Figure 3 This is a schematic diagram of the circuit structure of the first DC-DC module of the present application.
[0018] Figure 4 Schematic diagram of the circuit structure of the second conversion circuit of the present application.
[0019] Figure 5 This is a schematic diagram of the circuit structure of the energy storage unit of the present application.
[0020] Reference numerals: Sole-1, upper-2, battery box-3. DETAILED DESCRIPTION
[0021] 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 implementation modes and the accompanying drawings. Here, the illustrative implementation modes and descriptions of the present application are used to explain the present application, but are not intended to limit the present application.
[0022] Put a piece of piezoelectric material in the midsole of the shoe. When walking, the foot generates pressure on the piezoelectric material of the shoe sole. The pressure energy is converted into electrical energy through the positive piezoelectric effect, and the electrical energy is stored in a micro-battery, thus realizing the energy storage process of the energy storage shoe. Figures 1 to 4 ,like Figure 1 As shown, this embodiment provides an energy storage charging shoe, which is a highly intelligent, safe and convenient device to use, and specifically includes: a shoe body and an energy storage charging device arranged on the shoe body.
[0023] The shoe body includes a sole 1, an upper 2 and an insole. A battery box 3 is provided at the heel of the sole 1. The battery box 3 is used to install control elements. The battery box 3 has wiring holes. Piezoelectric ceramic sheets, piezoelectric films and pressure sensors can be connected to the control elements installed in the battery box 3 through the wiring holes.
[0024] The energy storage charging device includes a piezoelectric mechanism, an energy storage unit, a safety control unit and an electric energy output unit. The output end of the piezoelectric mechanism is electrically connected to the input end of the energy storage unit, the safety control unit is electrically connected to the electric energy output unit, and the energy storage unit is electrically connected to the electric energy output unit. The piezoelectric mechanism includes a piezoelectric ceramic sheet, a piezoelectric film and a signal processing circuit. The piezoelectric ceramic sheet is fixed between the elastic collection device and the upper surface of the sole 1. The piezoelectric ceramic sheet and the piezoelectric film are electrically connected to the signal processing circuit arranged in the battery box 3 through a connecting line to convert pressure into electric energy input into the energy storage unit. The piezoelectric ceramic sheet is a material that can convert mechanical pressure into electric energy and is fixed between the elastic collection device and the upper surface of the sole 1. When the wearer walks, the sole 1 is subjected to the force of the foot, and this force is transmitted to the piezoelectric ceramic sheet through the elastic collection device, causing it to deform and output electric energy. The piezoelectric film PVDF is a new type of polymer material with higher flexibility and specific application advantages. The two work together to improve the energy conversion efficiency. The signal processing circuit is responsible for receiving weak electrical signals from piezoelectric ceramics and piezoelectric films, and performing rectification, amplification, filtering, voltage stabilization and boosting, and then converting them into an electrical energy form suitable for the energy storage unit to receive. The energy storage unit is used to manage the battery's energy storage process. The safety control unit is used to control the charging and discharging operations and detect the user's status information to ensure that charging and discharging operations are performed under safe conditions. It is also used to short-circuit protection for circuit boards. When a short circuit is detected, the power supply is immediately cut off to achieve short-circuit protection and prevent safety accidents caused by circuit failures. The safety control unit can control the on and off of the energy storage battery charging process by controlling the relay. Among them, such as Figure 1 As shown, the elastic collecting device includes an upper fixing plate, a compression spring and a lower fixing plate. The upper fixing plate is arranged on the upper surface of the sole 1, one end of the compression spring is fixedly connected to the upper fixing plate, and the other end of the compression spring is fixedly connected to the lower fixing plate. The lower fixing plate is arranged on the piezoelectric ceramic sheet.
[0025] The signal processing circuit includes a first conversion circuit and a second conversion circuit. The first conversion circuit is used to rectify and filter the electrical signal output by the piezoelectric ceramic, and the second conversion circuit is used to rectify and boost the electrical signal output by the piezoelectric film, and then input the rectified and boosted electrical signal into the energy storage unit for energy storage processing. The signal processing circuit is arranged in the battery box 3. Figure 2As shown, the input end of the first conversion circuit is electrically connected to the output end of the piezoelectric ceramic, the first conversion circuit includes a rectifier module composed of a first capacitor C1, a second capacitor C2, a third capacitor C3, a first diode D1, a second diode D2 and a third diode D3, and a filter circuit composed of a first inductor L1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth capacitor C4, a fifth capacitor C5 and a voltage regulator diode D4, and a first DC-DC module, the first end of the first capacitor C1 is connected in parallel with the first end of the first inductor L1 and then electrically connected to the output end of the piezoelectric ceramic, the second end of the first capacitor C1 is connected in parallel with the first end of the second diode D2, the second end of the first diode D1 and the first end of the second capacitor C2, the first end of the first diode D1 is connected in parallel with the third The first end of the capacitor C3 is connected in parallel, the second end of the third capacitor C3 is connected in parallel with the second end of the second diode D2 and the first end of the third diode D3, the second end of the third diode D3 is connected in parallel with the second end of the second capacitor C2, the second end of the first inductor L1 is connected in parallel with the first end of the fourth capacitor C4 and the first end of the first resistor R1, the second end of the fourth capacitor C4 is connected in parallel with the first end of the fifth capacitor C5 and the first end of the second resistor R2 to form an output end of the first conversion circuit, the second end of the first resistor R1 and the second end of the fifth capacitor C5 are connected in parallel with the first end of the Zener diode D4 and the first end of the third resistor R3, the second end of the Zener diode D4 is connected in parallel with the second end of the second resistor R2, and the second end of the third resistor R3 forms another output end of the first conversion circuit. Among them, the rectifier module composed of the first capacitor C1, the second capacitor C2, the third capacitor C3, the first diode D1, the second diode D2 and the third diode D3 rectifies and amplifies the unstable voltage output by the piezoelectric ceramic, and then filters it through the inductor and capacitor elements. The output voltage is adjusted to a suitable stable output voltage range through the first voltage boost chip U1, and finally charges the energy storage battery.
[0026] Specifically, the first DC-DC module is also arranged in the battery box 3, and the first DC-DC module is used to amplify the signal after rectification and filtering. The first DC-DC module includes an eleventh capacitor C11, a twelfth capacitor C12, a thirteenth capacitor C13, a fourteenth capacitor C14, a fourth resistor R4, a fifth resistor R5, a ninth diode D9, a second inductor L2 and a first boost chip U1. The first end of the eleventh capacitor C11, the first end of the twelfth capacitor C12, the first end of the fourth resistor R4 and the first end of the ninth diode D9 are connected in parallel to form the first DC-DC module. The output end of the block, the second end of the eleventh capacitor C11 and the second end of the twelfth capacitor C12 are both grounded, the fifth resistor R5 is connected between the second end of the fourth resistor R4 and the ground, the second end of the ninth diode D9 is connected in parallel with the LX pin of the first boost chip U1 and the first end of the second inductor L2, the second end of the second inductor L2, the first end of the thirteenth capacitor C13 and the first end of the fourteenth capacitor C14 are connected in parallel with the second end of the third resistor R3, the second end of the thirteenth capacitor C13 and the second end of the fourteenth capacitor C14 are grounded, and the VIN pin and EN pin of the first boost chip U1. Among them, the first boost chip U1 adopts the model PW5328B, whose input voltage range is 0.7V-5V, which can meet the boost output requirements. PW5328B has a built-in compensation circuit, which can adapt to a wider input voltage, output voltage, inductance value and output capacitance value to achieve stable operation.
[0027] The input end of the second conversion circuit is electrically connected to the output end of the piezoelectric film, and the piezoelectric film is fixed between the sole 1 and the insole interlayer near the front end of the sole 1 and the bend of the sole. Figure 3 As shown, the second conversion circuit includes a multi-voltage rectifier module and a second DC-DC module, and the output end of the multi-voltage rectifier module is electrically connected to the input end of the second DC-DC module.
[0028] In this embodiment, the multi-voltage rectifier module uses a quadruple voltage rectifier module to rectify and amplify the electrical signal output by the piezoelectric film, and performs a voltage boost process through the second DC-DC module to boost the electrical signal to a suitable energy storage voltage range. The multi-voltage rectifier module includes a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, a ninth capacitor C9, a tenth capacitor C10, a fifth diode D5, a sixth diode D6, a seventh diode D7 and an eighth diode D8. The first end of the sixth capacitor C6 is connected to the output end of the piezoelectric film, the second end of the sixth capacitor C6 is connected in parallel with the first end of the fifth diode D5, the second end of the sixth diode D6 and the first end of the eighth capacitor C8, the second end of the fifth diode D5 is connected in parallel with the first end of the seventh capacitor C7 and then grounded, the second end of the seventh capacitor C7 is connected in parallel with the first end of the sixth diode D6, the second end of the seventh diode D7 and the first end of the ninth capacitor C9, the second end of the ninth capacitor C9 is connected in parallel with the first end of the eighth diode D8 and then grounded, and the second end of the eighth capacitor C8 is connected in parallel with the first end of the seventh diode D7, the second end of the eighth diode D8 and the first end of the tenth capacitor C10. The second DC-DC module includes a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, a third inductor L3, a fifteenth capacitor C15 and a second boost chip U2. The first end of the sixth resistor R6 is connected in parallel with the second end of the tenth capacitor C10, the BATT pin of the second boost chip U2, the first end of the third inductor L3 and the first end of the fifteenth capacitor C15. The second end of the fifteenth capacitor C15 is grounded. The second end of the sixth resistor R6 is electrically connected to the first end of the seventh resistor R7 and the PH pin of the second boost chip U2. The second end of the seventh resistor R7 is grounded. The second end of the third inductor L3 is connected to the LX pin of the second boost chip U2. The first end of the eighth resistor R8 is connected in parallel with the OUT pin of the second boost chip U2 and the first end of the tenth resistor R10. The second end of the tenth resistor R10 is connected in parallel with the first end of the ninth resistor R9 and then grounded. The second end of the ninth resistor R9 is connected in parallel with the second end of the eighth resistor R8 and the FB pin of the second boost chip U2. When the piezoelectric film is subjected to a certain frequency vibration in the environment, the sensor will generate a certain piezoelectric signal, generally a sine wave with a peak value of 1.5V.
[0029] The signal is converted from AC to DC through a quadruple voltage rectifier module, and the resulting DC signal is converted into a preset voltage through a second DC-DC module and transmitted to the charging management circuit to finally charge the lithium battery. The second boost chip U2 uses the MAX1678 model.
[0030] The MAX1678 chip has the characteristic of high conversion efficiency. The chip has a fixed output of 3.3V and an adjustable output product with an adjustable range of 2 to 5.5V. Since the MAX1678 chip has integrated power switches, synchronous current regulators and control circuits, its peripheral circuits can be designed to select appropriate resistors, capacitors and inductors according to actual needs. In this embodiment, the output voltage is set by two external voltage-dividing sampling resistors R8 and R9, and the resistance selection range is calculated according to the formula. The inductor can reduce the actual current pulsation, effectively reduce the output ripple, and promote the continuous increase of the output current capacity.
[0031] The energy storage unit is arranged in the battery box 3, and the energy storage unit includes a charging management circuit and an energy storage battery; the charging management circuit includes an eleventh resistor R11, a twelfth resistor R12, a light emitting diode LED0, a sixteenth capacitor C16, a seventeenth capacitor C17 and a charging management chip U3, the first end of the eleventh resistor R11 is connected to the SELI pin of the charging management chip U3, the second end of the eleventh resistor R11 is connected to the BATT pin of the charging management chip U3 through a switch, the first end of the sixteenth capacitor C16 and the first end of the twelfth resistor R12 are connected in parallel to the IN pin of the charging management chip U3, the second end of the sixteenth capacitor C16 is grounded, the second end of the twelfth resistor R12 is connected to the CHG pin of the charging management chip U3 through the light emitting diode LED0, the seventeenth capacitor C17 is connected in parallel to both ends of the energy storage battery, and the input end of the energy storage battery is connected to the BATT pin of the charging management chip U3. In this embodiment, the charging management chip U3 adopts the model MAX1811. The MAXl811 integrated chip has two setting ends SELV feet as charging voltage setting ends. When set to high level, the final charging voltage of the battery is 42V. When set to low level, the final charging voltage of the battery is 4.1V. It is used to adapt to lithium batteries with different final charging voltages. The final charging voltage accuracy of MAX1811 can reach 0.5%, which can safely charge the battery. SELI pin is the charging current setting terminal. When switch K1 is closed, the charging current is 500mA, and when the switch is open, the charging current is 100mA, to adapt to lithium batteries of different capacities. Pin CHG is the status indication terminal, which is low level during charging, and LED0 is connected as a charging indication.
[0032] The safety control unit includes a user status detection module, a main control module and a safety reminder module; the user status detection module includes a posture sensor and a pressure sensor, the posture sensor is used to detect the user's posture information, the pressure sensor is used to detect the user's foot pressure information, and the detected user posture information and the user's foot pressure information are transmitted to the main control module; the main control module is used to determine the user's movement posture according to the detection information, and control the safety reminder module to provide light reminders, and is also used to control whether to perform charging operations according to key signals; the safety reminder module includes an LED flashing light, the LED flashing light is connected to the main control module, and is used to provide light flashing reminders at a preset frequency according to the control signal of the main control module, the main control module is arranged in the battery box 3, the LED flashing light is arranged on the upper 2, and is connected to the main control module in the battery box 3 through a flexible wire embedded in the interlayer of the upper 2.
[0033] In this embodiment, the pressure sensor is arranged between the insole and the sole 1 near the heel, and the posture sensor is arranged in the battery box 3. The pressure sensor is used to detect the user's movement posture and determine whether the user is currently walking or stationary. The posture sensor is used to determine whether the user has fallen, etc. If so, the LED flashing light is immediately controlled to flash at a preset frequency as a reminder.
[0034] The sole 1 is also provided with a ventilation device, which includes ventilation holes arranged on both sides of the sole 1, and waterproof ventilation valves are arranged at the ventilation holes.
[0035] The power output unit includes a relay and a USB interface module; the relay is driven by a transistor drive circuit, the control end of the relay is electrically connected to the main control module, the moving contact of the relay is electrically connected to the BATT pin of the charging management chip U3, and the first static contact of the relay is connected to the input end of the energy storage battery. The USB interface module includes a USB interface and an RC filter circuit, the input end of the USB interface is electrically connected to one end of the RC filter circuit, and the other end of the RC filter circuit is electrically connected to the second static contact of the relay.
[0036] In this embodiment, the power output unit also includes a Type-C interface module, which is electrically connected to the energy storage battery, and another relay is provided between the Type-C interface module and the energy storage battery. The relays of the power output unit are all arranged in the battery box 3, and the USB interface module and the Type-C interface module are embedded in the upper 2, and are connected to the energy storage unit in the battery box 3 through the flexible wires embedded in the interlayer of the upper 2. Silicone protective plugs are provided on the USB interface module and the Type-C interface module, and the silicone protective plugs can be removed when in use.
[0037] The control process of the energy storage charging shoes is as follows: when the user is walking, the USB interface can be used for charging. When the main control module detects that an external USB device is inserted, the control relay connects the USB interface with the output port of the charging management chip U3 and disconnects the connection with the energy storage battery to charge the external device. When charging is completed, the connection path between the output port of the charging management chip U3 and the energy storage battery is connected to continue charging the energy storage battery. When the user is stationary, the Type-C interface module can be used to directly charge Type-C interface devices such as mobile phones or tablets. The output port of the charging management chip U3 is disconnected from the energy storage battery and another relay is connected between the Type-C interface module and the energy storage battery. The energy storage battery is discharged to charge the external device. When charging is completed, another relay is automatically disconnected and the connection path between the output port of the charging management chip U3 and the energy storage battery is connected to continue charging the energy storage battery. This realizes the process of providing power support for small electronic devices such as mobile phones and smart watches.
[0038] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the embodiments of the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. An energy storage charging shoe, characterized in that: include: A shoe body and an energy storage and charging device arranged on the shoe body; The shoe body comprises a sole (1), an upper (2) and an insole, a battery box is arranged at the heel of the sole, and the battery box (3) has a wiring hole; The energy storage charging device comprises a piezoelectric mechanism, an energy storage unit, a safety control unit and an electric energy output unit. The output end of the piezoelectric mechanism is electrically connected to the input end of the energy storage unit, and the energy storage unit is electrically connected to the electric energy output unit. The piezoelectric mechanism comprises a piezoelectric ceramic sheet, a piezoelectric film and a signal processing circuit. The piezoelectric ceramic sheet is fixed between the elastic collecting device and the upper surface of the sole (1). The piezoelectric ceramic sheet and the piezoelectric film are electrically connected to a signal processing circuit arranged in a battery box (3) via a connecting line to convert pressure into electric energy and input it into the energy storage unit. The energy storage unit is used to control the energy storage process. The safety control unit is used to control the charging and discharging operation and detect the user's status information, and is also used to short-circuit the circuit board.
2. The energy storage charging shoe according to claim 1, characterized in that: The signal processing circuit includes a first conversion circuit and a second conversion circuit; The input end of the first conversion circuit is electrically connected to the output end of the piezoelectric ceramic. The first conversion circuit includes a rectifier module composed of a first capacitor, a second capacitor, a third capacitor, a first diode, a second diode and a third diode, and a filter circuit composed of a first inductor, a first resistor, a second resistor, a third resistor, a fourth capacitor, a fifth capacitor and a voltage regulator diode, and a first DC-DC module. The first end of the first capacitor is connected in parallel with the first end of the first inductor and then electrically connected to the output end of the piezoelectric ceramic. The second end of the first capacitor is connected in parallel with the first end of the second diode, the second end of the first diode and the first end of the second capacitor. The first end of the first diode is connected in parallel with the first end of the third capacitor. The second end of the third capacitor is connected in parallel with the second end of the second diode and the first end of the third diode, the second end of the third diode is connected in parallel with the second end of the second capacitor, the second end of the first inductor is connected in parallel with the first end of the fourth capacitor and the first end of the first resistor, the second end of the fourth capacitor is connected in parallel with the first end of the fifth capacitor and the first end of the second resistor to form an output end of the first conversion circuit, the second end of the first resistor and the second end of the fifth capacitor are connected in parallel with the first end of the voltage stabilizing diode and the first end of the third resistor, the second end of the voltage stabilizing diode is connected in parallel with the second end of the second resistor, and the second end of the third resistor forms another output end of the first conversion circuit; The input end of the second conversion circuit is electrically connected to the output end of the piezoelectric film, the piezoelectric film is fixed between the sole (1) and the insole interlayer near the front end of the sole (1) and the bend of the sole, the second conversion circuit comprises a multiplier voltage rectifier module and a second DC-DC module, the output end of the multiplier voltage rectifier module is electrically connected to the input end of the second DC-DC module.
3. The energy storage charging shoe according to claim 2, characterized in that: The first DC-DC module includes an eleventh capacitor, a twelfth capacitor, a thirteenth capacitor, a fourteenth capacitor, a fourth resistor, a fifth resistor, a ninth diode, a second inductor and a first boost chip. The first end of the eleventh capacitor, the first end of the twelfth capacitor, the first end of the fourth resistor and the first end of the ninth diode are connected in parallel to form an output end of the first DC-DC module. The second end of the eleventh capacitor and the second end of the twelfth capacitor are both grounded. The fifth resistor is connected between the second end of the fourth resistor and the ground. The second end of the ninth diode is connected in parallel with the LX pin of the first boost chip and the first end of the second inductor. The second end of the second inductor, the first end of the thirteenth capacitor and the first end of the fourteenth capacitor are connected in parallel with the second end of the third resistor. The second end of the thirteenth capacitor and the second end of the fourteenth capacitor are grounded. The VIN pin and the EN pin of the first boost chip.
4. The energy storage charging shoe according to claim 3, characterized in that: The energy storage unit includes a charging management circuit and an energy storage battery; The charging management circuit includes an eleventh resistor, a twelfth resistor, a light emitting diode, a sixteenth capacitor, a seventeenth capacitor and a charging management chip. The first end of the eleventh resistor is connected to the SELI pin of the charging management chip, and the second end of the eleventh resistor is connected to the BATT pin of the charging management chip through a switch. The first end of the sixteenth capacitor and the first end of the twelfth resistor are connected in parallel to the IN pin of the charging management chip, the second end of the sixteenth capacitor is grounded, the second end of the twelfth resistor is connected to the CHG pin of the charging management chip through a light emitting diode, and the seventeenth capacitor is connected in parallel to both ends of an energy storage battery, and the input end of the energy storage battery is connected to the BATT pin of the charging management chip.
5. The energy storage charging shoe according to claim 4, characterized in that: The security control unit includes a user status detection module, a main control module and a security reminder module; The user state detection module includes a posture sensor and a pressure sensor, wherein the posture sensor is used to detect the posture information of the user, and the pressure sensor is used to detect the foot pressure information of the user, and transmits the detected user posture information and the user's foot pressure information to the main control module; The main control module is used to determine the user's motion posture according to the detection information, and control the safety reminder module to give a light reminder, and is also used to control whether to charge according to the key signal; The safety reminder module includes an LED flashing light, which is connected to the main control module and is used to flash a light at a preset frequency to remind according to a control signal of the main control module.
6. The energy storage charging shoe according to claim 1, characterized in that: The sole (1) is also provided with a ventilation device, the ventilation device comprising ventilation holes provided on both sides of the sole (1), and the ventilation holes are provided with waterproof ventilation valves.
7. The energy storage charging shoe according to claim 5, characterized in that: The electric energy output unit includes a relay and a USB interface module; The relay is driven by a transistor drive circuit, the control end of the relay is electrically connected to the main control module, the moving contact of the relay is electrically connected to the BATT pin of the charging management chip, and the first static contact of the relay is connected to the input end of the energy storage battery. The USB interface module includes a USB interface and an RC filter circuit, the input end of the USB interface is electrically connected to one end of the RC filter circuit, and the other end of the RC filter circuit is electrically connected to the second static contact of the relay.
8. The energy storage and charging shoes according to claim 1, characterized in that: The elastic collecting device comprises an upper fixing plate, a compression spring and a lower fixing plate, wherein the upper fixing plate is arranged on the upper surface of the sole (1), one end of the compression spring is fixedly connected to the upper fixing plate, and the other end of the compression spring is fixedly connected to the lower fixing plate, and the lower fixing plate is arranged on the piezoelectric ceramic sheet.