Impact-driven portable charger

Abstract

The invention discloses an impact-driven portable charger, which relates to the field of charging equipment and comprises a machine base, a thrust bearing, a main shaft, a generator stator, a generator rotor, a chuck, a main bearing, a one-way bearing, an externally threaded sleeve, an internally threaded hollow sleeve, a reset spring, a gland, a rubber cap and a rectifier power storage module. The invention utilizes a pair of micro-drive threaded coupling pairs and a one-way bearing to convert a micro-impact motion into a one-way rotational motion of a rotor of a micro-generator and temporarily stores part of the mechanical energy in the form of rotational inertia energy. At the same time, the coupling of the magnetic field generated by the stator coil of the generator and the magnetic pole of the rotor generates a pulsating induced potential. Finally, the rectifier circuit and the energy storage battery of the rectifier power storage module are utilized to convert the mechanical energy contained in the micro-impact motion into electric energy with stable voltage and charge personal electronic devices. The invention can effectively utilize human bioenergy and has the advantages of high conversion efficiency and power density, small volume and size, reliable operation and low cost.

Description

Technical Field

[0001] The invention belongs to the field of charging equipment, and in particular relates to an impact-driven portable charger. Background Art

[0002] As personal electronic consumer products are increasingly used, portable backup power supplies have become an essential portable component. Currently, portable disposable or rechargeable batteries are generally used as backup power supplies.

[0003] Since the existing method of using batteries as a backup power source cannot be recharged outdoors or in a power outage environment, some portable human-powered power generation devices have appeared on the market as backup power sources. Some of these power generation devices use the power of human limbs such as arms or feet to work on specially designed portable power generation devices and convert mechanical work into electrical energy. This method has the disadvantages of complex energy conversion mechanism, large size and weight, high cost, and affecting people's normal life rhythm, so it is difficult to popularize; some use the piezoelectric effect to convert the pedaling force of the foot into electrical energy or use the thermoelectric effect to generate electrical energy from the heat generated by the human body. The power conversion efficiency and energy intensity of this type of power generation device are very low, and it is difficult to adapt to the increasingly high power requirements of personal electronic consumer products; some portable power generation devices use solar cells as power sources, but these devices still have the disadvantages of large size, high cost, low power density per unit volume, harsh operating conditions, etc., and cannot meet market requirements.

[0004] Therefore, there is a need to develop a portable power generation device that utilizes human bioenergy, has high power conversion efficiency and power density, is small in size and volume, has little interference with human activities, works reliably and is low in cost as a backup power source for increasingly widely used personal electronic consumer products. Summary of the invention

[0005] The object of the present invention is to provide an impact-driven portable charger to solve the above-mentioned defects caused by the prior art.

[0006] An impact-driven portable charger includes a base, a thrust bearing, a main shaft, a generator stator, a generator rotor, a chuck, a main bearing, a one-way bearing, an externally threaded sleeve, an internally threaded hollow sleeve, a return spring, a gland, a rubber cap, and a rectifier power storage module;

[0007] The main shaft is vertically supported in the machine base by a main bearing with the aid of a chuck embedded in the middle of the machine base, and is supported at the center of the machine base by a thrust bearing embedded in the center of the machine base chassis;

[0008] The generator stator is wound around the center of the chassis inside the base, and the generator rotor is sleeved on the lower part of the main shaft and covered on the upper part of the generator stator;

[0009] The external threaded sleeve is sleeved on the upper part of the main shaft through a one-way bearing, and the internal threaded hollow sleeve is sleeved on the outside of the external threaded sleeve through a transmission thread and driven to move upward and reset through a disc-shaped reset spring;

[0010] The gland is embedded in the upper end of the base and encapsulates the annular rectifying power storage module in the cavity above the chuck. The rubber cap with a flange is sleeved on the upper part of the base and contacts the upper end surface of the internal thread hollow sleeve.

[0011] The voltage output coil of the generator stator is connected to the lead-out cable through a rectifier power storage module.

[0012] Preferably, the upper end of the disc-shaped return spring is supported in an annular groove on the lower end surface of the internally threaded hollow sleeve, and the lower end of the disc-shaped return spring is supported on a flange on the inner side of the upper end of the chuck.

[0013] Preferably, the upper end of the disc-shaped return spring is supported on a flange at the upper end of the internally threaded hollow sleeve, and the lower end of the disc-shaped return spring is supported in an annular groove at the upper end of the pressure cover.

[0014] Preferably, the generator stator is mainly composed of an induction coil, and the generator rotor is mainly composed of an inner magnetic pole and an outer ring of a counterweight ring that mainly serves to increase the rotational inertia.

[0015] Preferably, the lead-out cable can be connected to an electronic device via a charging connector at its end.

[0016] A pair of shoes comprising the above-mentioned impact-driven portable charger, wherein a groove is provided at the heel of the sole of the shoe, the impact-driven portable charger is entirely embedded therein and the top of the rubber cap is ensured to protrude from the upper surface of the sole by 0.1 mm, and the lead-out cable of the rectifier and power storage module is connected to the electronic device through a rib tube at the back of the shoe.

[0017] The advantages of the present invention are: the present invention uses a pair of micro-drive thread coupling pairs and a one-way bearing to convert the micro-impact motion into the one-way rotational motion of the rotor of the micro-generator and temporarily saves part of the mechanical energy in the form of rotational inertia energy, and at the same time, the coupling of the magnetic field generated by the stator coil of the generator and the magnetic pole of the rotor generates a pulsating induced potential, and finally uses the rectifier circuit and energy storage battery of the rectifier power storage module to convert the mechanical energy contained in the micro-impact motion into voltage-stable electrical energy and charge personal electronic devices. The present invention can effectively utilize human bioenergy, and has the advantages of high conversion efficiency and power density, small volume and size, reliable operation and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of Example 1 of the present invention.

[0019] Figure 2 It is a schematic diagram of the structure of Example 2 of the present invention.

[0020] Figure 3 It is a schematic diagram of the electrical principle of the present invention.

[0021] Figure 4 Schematic diagram of an application case of the present invention.

[0022] In the figure, the base 1, the thrust bearing 2, the main shaft 3, the generator stator 4, the generator rotor 5, the chuck 6, the main bearing 7, the one-way bearing 8, the external threaded sleeve 9, the internal threaded hollow sleeve 10, the return spring 11, the pressure cover 12, the rubber cap 13, the rectifier power storage module 14;

[0023] Shoe 1000, sole heel 1001, and shoe back rib tube 1002. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0025] Example 1

[0026] See also Figure 1 and Figure 3 , this embodiment discloses an impact-driven portable charger, including a base 1, a thrust bearing 2, a main shaft 3, a generator stator 4, a generator rotor 5, a chuck 6, a main bearing 7, a one-way bearing 8, an externally threaded sleeve 9, an internally threaded hollow sleeve 10, a return spring 11, a gland 12, a rubber cap 13 and a rectifier power storage module 14;

[0027] The main shaft 3 is vertically supported in the machine base 1 by means of a main bearing 7 with the aid of a chuck 6 embedded in the middle of the machine base 1, and is supported at the center of the machine base 1 by a thrust bearing 2 embedded in the center of the chassis of the machine base 1;

[0028] The generator stator 4 is wound around the center of the chassis in the base 1, and the generator rotor 5 is sleeved on the lower part of the main shaft 3 and covered on the upper part of the generator stator 4;

[0029] The external threaded sleeve 9 is sleeved on the upper part of the main shaft 3 through the one-way bearing 8, and the internal threaded hollow sleeve 10 is sleeved on the outside of the external threaded sleeve 9 through the transmission thread and driven by the disc-shaped return spring 11 to move upward and return to its original position;

[0030] The pressure cover 12 is embedded in the upper end of the base 1 and encapsulates the annular rectifying power storage module 14 in the cavity above the chuck 6. The rubber cap 13 with a flange is sleeved on the upper part of the base 1 and contacts the upper end surface of the internal thread hollow sleeve 10.

[0031] The voltage output coil of the generator stator 4 is connected to the lead-out cable through the rectifier power storage module 14 .

[0032] In this embodiment, the upper end of the disc-shaped return spring 11 is supported in the annular groove on the lower end surface of the internally threaded hollow sleeve 10 , and the lower end of the disc-shaped return spring 11 is supported on the flange on the inner side of the upper end of the chuck 6 .

[0033] In this embodiment, the generator stator 4 is mainly composed of an induction coil, and the generator rotor 5 is mainly composed of an inner magnetic pole and an outer ring of a counterweight ring that mainly serves to increase the rotational inertia.

[0034] In this embodiment, the lead-out cable can be connected to an electronic device via a charging connector at its end.

[0035] Example 2

[0036] See also Figure 2 and Figure 3 , which is different from Example 1, is that in this embodiment, the upper end of the disc-shaped return spring 11 is supported on the flange at the upper end of the internally threaded hollow sleeve 10, and the lower end of the disc-shaped return spring 11 is supported in the annular groove at the upper end of the pressure cover 12.

[0037] The working process of the present invention is as follows:

[0038] Typical application cases of this embodiment are as follows Figure 4As shown, a notch is provided at the heel 1001 of the sole of the shoe to embed the portable charger therein and ensure that the top of the rubber cap 13 protrudes 3-5 mm from the upper surface of the sole, and the lead-out cable of the rectifier power storage module 14 passes through the shoe back pocket rib tube 1002 to connect with the personal electronic device. During the normal walking process of the user, the heel steps on the sole to drive the internal thread hollow sleeve 10 downward through the rubber cap 13 (at this time, the return spring 11 is compressed) and drives the external thread sleeve 9 to rotate forward through the coupling of the transmission thread between the internal thread hollow sleeve 10 and the external thread sleeve 9, and then drives the main shaft 3 and the generator rotor 5 to rotate forward through the one-way bearing 8 (at this time, it is in a locked state) and temporarily saves part of the mechanical energy in the form of rotational inertia. When the internal threaded hollow sleeve 10 is pressed to the lowest position, the coupling transmission between it and the external threaded sleeve 9 stops. At this time, the external threaded sleeve 9 stops rotating, while the main shaft 3 and the generator rotor 5 continue to rotate in the positive direction due to inertia without being constrained by the one-way bearing 8 (at this time it is in an unlocked state). Therefore, the coupling of the magnetic field generated by the stator coil of the generator and the magnetic pole of the rotor generates a pulsating induced potential. Finally, the rectifier circuit and energy storage battery of the rectifier power storage module are used to convert the mechanical energy contained in the heel stepping on the sole into electrical energy with stable voltage and charge personal electronic devices. When the heel is lifted, the rubber cap 13 and the reset spring 11 both begin to reset, and the extension of the reset spring 11 drives the internal thread hollow sleeve 10 to move upward. During this process, the coupling of the transmission thread between it and the external thread sleeve 9 drives the external thread sleeve 9 to rotate in the opposite direction, so that the one-way bearing 8 is in an unlocked state, so it will not hinder the main shaft 3 and the generator rotor 5 from still rotating forward due to inertia. Therefore, the rotational inertia stored in the main shaft 3 and the generator rotor 5 can still be converted into electrical energy to continuously charge personal electronic devices. As the user steps on and releases the sole, the above process is repeated, so the present invention allows the user to convert the mechanical energy of his heel stepping into electrical energy and continuously charge his personal electronic devices while walking.

[0039] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. An impact-driven portable charger, characterized in that: It comprises a base (1), a thrust bearing (2), a main shaft (3), a generator stator (4), a generator rotor (5), a chuck (6), a main bearing (7), a one-way bearing (8), an externally threaded sleeve (9), an internally threaded hollow sleeve (10), a return spring (11), a gland (12), a rubber cap (13) and a rectifier power storage module (14); The main shaft (3) is vertically supported in the machine base (1) through a main bearing (7) with the aid of a chuck (6) embedded in the middle of the machine base (1), and is supported at the center of the machine base (1) through a thrust bearing (2) embedded in the center of the chassis of the machine base (1); The generator stator (4) is wound around the center of the chassis inside the base (1), and the generator rotor (5) is sleeved on the lower part of the main shaft (3) and is covered on the upper part of the generator stator (4); The external threaded sleeve (9) is sleeved on the upper part of the main shaft (3) via a one-way bearing (8); the internal threaded hollow sleeve (10) is sleeved on the outside of the external threaded sleeve (9) via a transmission thread and is driven to move upward and reset via a disc-shaped reset spring (11); The pressure cover (12) is embedded in the upper end of the machine base (1) and encapsulates the annular rectifying power storage module (14) in the cavity above the chuck (6); the rubber cap (13) with a flange is sleeved on the upper part of the machine base (1) and contacts the upper end surface of the internally threaded hollow sleeve (10); The voltage output coil of the generator stator (4) is connected to the lead-out cable via a rectifier power storage module (14); The upper end of the disc-shaped return spring (11) is supported in an annular groove on the lower end surface of the internally threaded hollow sleeve (10), and the lower end of the disc-shaped return spring (11) is supported on a flange on the inner side of the upper end of the chuck (6); The upper end of the disc-shaped return spring (11) is supported on the flange at the upper end of the internally threaded hollow sleeve (10), and the lower end of the disc-shaped return spring (11) is supported in the annular groove at the upper end of the pressure cover (12).

2. The impact-driven portable charger according to claim 1, characterized in that: The generator stator (4) is mainly composed of an induction coil, and the generator rotor (5) is mainly composed of an inner magnetic pole and an outer ring counterweight ring that mainly serves to increase the rotational inertia.

3. The impact-driven portable charger according to claim 1, characterized in that: The lead-out cable can be connected to an electronic device by means of a charging connector at its end.

4. A shoe comprising the impact-driven portable charger according to any one of claims 1 to 3, characterized in that: The heel of the shoe sole (1001) is provided with a notch, into which the impact-driven portable charger is entirely embedded, and the top of the rubber cap (13) is ensured to protrude 3-5 mm from the upper surface of the shoe sole, and the lead-out cable of the rectifier power storage module (14) passes through the shoe rear pocket rib tube (1002) and is connected to the electronic device.

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