A one-way micro-portable charger

Abstract

The invention discloses a unidirectional micro-motion portable charger, which relates to the field of charging equipment, and comprises a machine base, a thrust bearing, a main shaft assembly, a generator stator, a generator rotor, a one-way bearing, a chuck, a main bearing, an internal thread hollow sleeve, a reset spring, a gland, a rubber cap and a rectifier power storage module. The invention utilizes a pair of micro-drive thread coupling pairs and a one-way bearing to convert a micro-amplitude unidirectional pulsation into a unidirectional rotational motion of a rotor of a micro-generator, or converts the micro-amplitude unidirectional pulsation into a unidirectional rotational motion and converts the micro-amplitude unidirectional pulsation into a high-speed rotational motion through a micro-transmission and transmits the unidirectional rotational motion to the rotor of the 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-amplitude unidirectional pulsation into voltage-stable electrical energy and charge personal electronic devices.

Description

Technical Field

[0001] The invention belongs to the field of charging equipment, and in particular relates to a unidirectional micro-motion 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 purpose of the present invention is to provide a unidirectional micro-motion portable charger to solve the above-mentioned defects caused by the prior art.

[0006] A one-way micro-motion portable charger, comprising a base, a thrust bearing, a main shaft assembly, a generator stator, a generator rotor, a one-way bearing, a chuck, a main bearing, an internally threaded hollow sleeve, a return spring, a gland, a rubber cap and a rectifier power storage module;

[0007] The main shaft assembly 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. The main shaft assembly is used to drive the generator rotor to rotate;

[0008] The generator stator is wound around the center of the chassis in the base, and the generator rotor is embedded in the lower part of the main shaft assembly through a one-way bearing and is covered above the generator stator;

[0009] The outer edge of the head of the spindle assembly is provided with a transmission thread and meshes with an internally threaded hollow sleeve sleeved on the outside thereof. The internally threaded hollow sleeve is driven to move upward and reset by a disc-shaped reset spring. The gland is embedded in the upper end of the base and encapsulates the annular rectifier 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 is in close contact with the upper end surface of the internally threaded hollow sleeve.

[0010] The voltage output coil of the generator stator is connected to the lead-out cable through a rectifier power storage module.

[0011] Preferably, the spindle assembly is specifically a spindle, which is vertically supported in the machine base through a main bearing by means 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. The outer edge of the upper end of the spindle is provided with a transmission thread and engages with an internally threaded hollow sleeve sleeved on the outside thereof.

[0012] Preferably, the spindle assembly includes a spindle, an externally threaded shaft and a transmission. The spindle is vertically supported in the machine base through 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 through a thrust bearing embedded in the center of the machine base chassis. The transmission is embedded in the center of the upper end surface of the chuck and the output shaft at its lower end is coaxially connected to the spindle, the input shaft at the upper end of the transmission is coaxially connected to the externally threaded shaft, the outer edge of the externally threaded shaft is provided with a transmission thread and meshes with an internally threaded hollow sleeve sleeved on the outside thereof, and the isolation ring is embedded in the machine base and located above the chuck.

[0013] 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.

[0014] 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 wall of the upper end of the isolation ring.

[0015] 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.

[0016] 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.

[0017] Preferably, the lead-out cable can be connected to an electronic device via a charging connector at its end.

[0018] A pair of shoes comprising the above-mentioned unidirectional micro-motion portable charger, wherein a groove is provided at the heel of the sole of the shoe, the unidirectional micro-motion portable charger is entirely embedded therein and the top of the rubber cap is ensured to protrude by 0.1 mm from the upper surface of the sole, 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.

[0019] The advantages of the present invention are: the present invention uses a pair of micro-drive thread coupling pairs and one-way bearings to convert micro-amplitude unidirectional pulsation into unidirectional rotational motion of the rotor of the micro-generator, or converts micro-amplitude unidirectional pulsation into unidirectional rotational motion and converts it into high-speed rotational motion through a micro-transmission to transmit it to the rotor of the micro-generator, and temporarily stores part of the mechanical energy in the form of rotational inertia energy, while 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 storage module to convert the mechanical energy contained in the micro-amplitude unidirectional pulsation 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

[0020] Figure 1 It is a schematic diagram of the structure of Example 1 of the present invention.

[0021] Figure 2 It is a schematic diagram of the structure of Example 2 of the present invention.

[0022] Figure 3 It is a schematic diagram of the structure of Example 3 of the present invention.

[0023] Figure 4 It is a schematic diagram of the structure of Example 4 of the present invention.

[0024] Figure 5 It is a schematic diagram of the electrical principle of the present invention.

[0025] Figure 6 Schematic diagram of an application case of the present invention.

[0026] In the figure, the base 1, the thrust bearing 2, the main shaft 3, the generator stator 4, the generator rotor 5, the one-way bearing 6, the chuck 7, the main bearing 8, the internal thread hollow sleeve 9, the return spring 10, the gland 11, the rubber cap 12, the rectifier power storage module 13, the transmission 14, the external thread shaft 15, and the isolation ring 16;

[0027] Shoe 1000, sole heel 1001, and shoe back rib tube 1002. DETAILED DESCRIPTION

[0028] 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.

[0029] Example 1

[0030] See also Figure 1 This embodiment discloses a one-way micro-portable charger, including a base 1, a thrust bearing 2, a main shaft assembly, a generator stator 4, a generator rotor 5, a one-way bearing 6, a chuck 7, a main bearing 8, an internal thread hollow sleeve 9, a return spring 10, a gland 11, a rubber cap 12 and a rectifier power storage module 13;

[0031] The main shaft assembly is vertically supported in the machine base 1 by a main bearing 8 with the aid of a chuck 7 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. The main shaft assembly is used to drive the generator rotor 5 to rotate;

[0032] The generator stator 4 is wound around the center of the chassis in the base 1, and the generator rotor 5 is embedded in the lower part of the main shaft assembly through a one-way bearing 6 and is covered above the generator stator 4;

[0033] The outer edge of the head of the spindle assembly is provided with a transmission thread and meshes with an internally threaded hollow sleeve 9 sleeved on the outside thereof. The internally threaded hollow sleeve 9 is driven to move upward and reset by a disc-shaped reset spring 11. The pressure cover 11 is embedded in the upper end of the base 1 and encapsulates the annular rectifier power storage module 13 in the cavity above the chuck 7. The rubber cap 12 with a flange is sleeved on the upper part of the base 1 and is in close contact with the upper end surface of the internally threaded hollow sleeve 9.

[0034] The voltage output coil of the generator stator 4 is connected to the lead-out cable through the rectifier power storage module 13 .

[0035] In this embodiment, the spindle assembly is specifically a spindle 3, which is vertically supported in the machine base 1 by a main bearing 8 with the help of a chuck 7 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. The outer edge of the upper end of the spindle 3 is provided with a transmission thread and is engaged with an internally threaded hollow sleeve 9 sleeved on the outside thereof.

[0036] In this embodiment, the upper end of the disc-shaped return spring 10 is supported in the annular groove on the lower end surface of the internally threaded hollow sleeve 9 , and the lower end of the disc-shaped return spring 10 is supported on the flange on the inner side of the upper end of the chuck 7 .

[0037] 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.

[0038] In this embodiment, the lead-out cable can be connected to an electronic device via a charging connector at its end.

[0039] Example 2

[0040] See also Figure 2 , which is different from Example 1, is that in this embodiment, the upper end of the disc-shaped return spring 10 is supported on the flange at the upper end of the internally threaded hollow sleeve 9, and the lower end of the disc-shaped return spring 10 is supported in the annular groove at the upper end of the pressure cover 11.

[0041] See also Figure 5 and 6 The working process and principle of Example 1 and Example 2 are as follows:

[0042] Typical application cases of this embodiment are as follows Figure 6 As 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 12 protrudes 3-5 mm from the upper surface of the sole, and the lead-out cable of the rectifier power storage module 13 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 9 to move downward through the rubber cap 12 (at this time, the return spring 10 is compressed) and drives the main shaft 3 to rotate in the forward direction through the coupling of the transmission thread between the internal thread hollow sleeve 9 and the outer edge of the head of the main shaft 3, and then drives the generator rotor 5 to rotate in the forward direction through the one-way bearing 6 (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 thread hollow sleeve 9 is pressed to the lowest position, the coupling transmission between it and the outer edge of the head of the main shaft 3 stops, and the main shaft 3 stops rotating at this time, while the generator rotor 5 continues to rotate in the forward direction due to inertia without being constrained by the one-way bearing 6 (at this time it is in an unlocked state), so the coupling of the stator coil of the generator and the magnetic field generated by the magnetic poles of the rotor generates a pulsating induced potential, and 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 voltage-stable electrical energy and charge the personal electronic device. When the heel is lifted, the rubber cap 12 and the reset spring 10 both begin to reset, and the extension of the reset spring 10 drives the internal thread hollow sleeve 9 to move upward. In this process, the coupling of the transmission thread between it and the outer edge of the head of the main shaft 3 drives the main shaft 3 to rotate in the opposite direction, so that the one-way bearing 6 is in an unlocked state, so it will not hinder the forward rotation of the generator rotor 5 due to inertia, so the rotational inertia stored in the generator rotor 5 can still be converted into electrical energy and continue to charge the personal electronic device. 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 the heel stepping into electrical energy while walking and continuously charge the personal electronic device.

[0043] Example 3

[0044] See also Figure 3, which is different from Example 1 in that: in this embodiment, the spindle assembly includes a spindle 3, an externally threaded shaft 15 and a transmission 14. The spindle 3 is vertically supported in the machine base 1 by a main bearing 8 with the help of a chuck 7 embedded in the middle of the machine base 1, and is supported in the center of the machine base 1 by a thrust bearing 2 embedded in the center of the chassis of the machine base 1. The transmission 14 is embedded in the center of the upper end surface of the chuck 7 and the output shaft at its lower end is coaxially connected to the spindle 3. The input shaft at the upper end of the transmission 14 is coaxially connected to the externally threaded shaft 15. The outer edge of the externally threaded shaft 15 is provided with a transmission thread and meshes with an internally threaded hollow sleeve 9 sleeved on the outside thereof. The isolation ring 16 is embedded in the machine base 1 and is located above the chuck 7.

[0045] Example 4

[0046] See also Figure 4 , which is different from Example 3 in that: in this embodiment, the upper end of the disc-shaped return spring 10 is supported in the annular groove on the lower end surface of the internally threaded hollow sleeve 9, and the lower end of the disc-shaped return spring 10 is supported on the flange of the inner wall of the upper end of the isolation ring 16.

[0047] See also Figure 5 and 6 The working process and principle of Example 3 and Example 4 are as follows:

[0048] Typical application cases of this embodiment are as follows Figure 6As 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 12 protrudes 3-5 mm from the upper surface of the sole, and the lead-out cable of the rectifier power storage module 13 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 9 to move downward through the rubber cap 12 (at this time, the return spring 10 is compressed) and drives the external thread shaft 15 to rotate in the positive direction through the coupling of the transmission thread between it and the external thread shaft 15. This rotational motion is accelerated by the transmission 14 and then output from its output shaft and drives the main shaft 3 to rotate. The main shaft 3 then drives the generator rotor 5 to rotate in the positive direction through the one-way bearing 6 (at this time, it is in a locked state) and temporarily stores part of the mechanical energy in the form of rotational inertia. When the internal thread hollow sleeve 9 is pressed to the lowest position, the coupling transmission between it and the external thread shaft 15 stops. At this time, the external thread shaft 15 stops rotating together with the transmission 14 and the main shaft 3, while the generator rotor 5 continues to rotate in the positive direction due to inertia without being constrained by the one-way bearing 6 (it is in an unlocked state at this time). 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 12 and the return spring 10 both begin to return to their original positions. The extension of the return spring 10 drives the internal thread hollow sleeve 9 to move upward. During this process, the coupling of the transmission thread between the internal thread hollow sleeve 9 and the external thread shaft 15 drives the external thread shaft 15, the transmission 14 and the main shaft 3 to rotate in the opposite direction, so that the one-way bearing 6 is in an unlocked state, so it will not hinder the forward rotation of the generator rotor 5 due to inertia. Therefore, the rotational inertia stored in 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. Therefore, 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.

[0049] 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. A shoe, characterized in that: The heel of the shoe sole (1001) is provided with a notch, in which the one-way micro-portable charger is integrally embedded, and the top of the rubber cap (12) is ensured to protrude 3-5 mm from the upper surface of the sole, and the lead-out cable of the rectifier power storage module (13) passes through the shoe rear rib tube (1002) and is connected to the electronic device; The one-way micro-portable charger comprises a base (1), a thrust bearing (2), a main shaft assembly, a generator stator (4), a generator rotor (5), a one-way bearing (6), a chuck (7), a main bearing (8), an internally threaded hollow sleeve (9), a return spring (10), a gland (11), a rubber cap (12) and a rectifier power storage module (13); The generator stator (4) is wound around the center of the chassis inside the base (1), the generator rotor (5) is embedded in the lower part of the main shaft assembly through a one-way bearing (6) and is covered above the generator stator (4), and the generator rotor (5) mainly comprises an inner magnetic pole and an outer ring counterweight ring that mainly serves to increase the rotational inertia; The outer edge of the head of the spindle assembly is provided with a transmission thread and meshes with an internally threaded hollow sleeve (9) sleeved on the outside thereof. The internally threaded hollow sleeve (9) is driven to move upward and reset by a disc-shaped reset spring (10). A pressure cover (11) is embedded in the upper end of the machine base (1) and encapsulates an annular rectifier power storage module (13) in the cavity above the chuck (7). A rubber cap (12) with a flange is sleeved on the upper part of the machine base (1) and is in close contact with the upper end surface of the internally threaded hollow sleeve (9). The voltage output coil of the generator stator (4) is connected to the lead-out cable via a rectifier power storage module (13); The main shaft assembly is used to drive the generator rotor (5) to rotate, and the main shaft assembly comprises a main shaft (3), an externally threaded shaft (15) and a transmission (14). The main shaft (3) is vertically supported in the machine base (1) by means of a chuck (7) embedded in the middle of the machine base (1) through a main bearing (8), 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 transmission (14) is embedded in the center of the upper end surface of the chuck (7) and the output shaft at its lower end is coaxially connected to the main shaft (3). The input shaft at the upper end of the transmission (14) is coaxially connected to the externally threaded shaft (15). The outer edge of the externally threaded shaft (15) is provided with a transmission thread and meshes with an internally threaded hollow sleeve (9) sleeved on the outside thereof.

2. The shoe according to claim 1, characterized in that: The upper end of the disc-shaped return spring (10) is supported in an annular groove on the lower end surface of the internally threaded hollow sleeve (9), and the lower end of the disc-shaped return spring (10) is supported on a flange on the inner wall of the upper end of an isolation ring (16). The isolation ring (16) is embedded in the machine base (1) and is located above the chuck (7).

3. The shoe according to claim 1, characterized in that: The upper end of the disc-shaped return spring (10) is supported on the flange at the upper end of the internally threaded hollow sleeve (9), and the lower end of the disc-shaped return spring (10) is supported in the annular groove at the upper end of the pressure cover (11).

4. The shoe 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.

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