CN111934481A

CN111934481A - Impact-driven portable charger

Info

Publication number: CN111934481A
Application number: CN202010945300.2A
Authority: CN
Inventors: 白顺科
Original assignee: Nanjing Vocational University of Industry Technology NUIT
Current assignee: Nanjing Vocational University of Industry Technology NUIT
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2020-11-13

Abstract

The invention discloses an impact driving type 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 external thread shaft sleeve, an internal thread hollow sleeve, a reset spring, a gland, a rubber cap and a rectification electricity storage module, wherein a pair of micro driving thread coupling pairs and the one-way bearing are utilized to convert micro impact motion into the one-way rotation motion of the rotor of a micro generator and temporarily store partial mechanical energy in the form of rotation inertia energy, meanwhile, the coupling of a stator coil of the generator and a magnetic field generated by a magnetic pole of the rotor generates pulse induction potential, finally, a rectification circuit and an energy storage battery of the rectification electricity 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 equipment, so that, the converter has the advantages of high conversion efficiency and power density, small size, reliable operation, low cost and the like.

Description

Impact-driven portable charger

Technical Field

The invention belongs to the field of charging equipment, and particularly relates to an impact-driven portable charger.

Background

Personal electronic consumer products are becoming more widely used, and therefore portable backup power sources are becoming indispensable portable components, and portable disposable or rechargeable batteries are generally used as backup power sources at present.

Because the existing mode of adopting a battery as a standby power supply can not be recharged outdoors or in an electricity-deficient environment, some portable manpower power generation devices are also appeared in the market as the standby power supply, the power generation devices adopt the strength of the limbs such as arms or feet of the human body to do work on the specially designed portable power generation devices and convert mechanical power into electric energy, and the mode has the defects of complex energy conversion mechanism, large volume and weight, high cost, influence on the normal life rhythm of people and the like, so the popularization is difficult; some devices convert the treading force of feet into electric energy by using the piezoelectric effect or generate electric energy by using the heat generated by human bodies by using the thermoelectric effect, and the electric energy conversion efficiency and the energy intensity of the power generation devices are very low and are difficult to adapt to the higher and higher power requirements of personal electronic consumer products; some portable power generation devices also use solar cells as power sources, but the devices still have the defects of large volume, high cost, small power density corresponding to unit volume, harsh use conditions and the like, and cannot meet the market requirements.

Therefore, there is a need to develop a portable power generation device that utilizes human body's biological energy, high electric energy conversion efficiency and power density, small size and dimension, less interference with human body's activities, reliable operation, and low cost as a backup power source for personal electronic consumer goods that are increasingly widely used.

Disclosure of Invention

The present invention is directed to a shock-driven portable charger to solve the above-mentioned drawbacks of the prior art.

An impact-driven portable charger comprises a base, a thrust bearing, a main shaft, a generator stator, a generator rotor, a chuck, a main bearing, a one-way bearing, an external thread shaft sleeve, an internal thread hollow sleeve, a reset spring, a gland, a rubber cap and a rectification electricity storage module;

the main shaft is vertically supported in the engine base through a main bearing by a chuck embedded in the middle of the engine base, and is supported in the center of the engine base through a thrust bearing embedded in the center of an engine base chassis;

the generator stator is wound at the central position of the chassis in the base, and the generator rotor is sleeved at the lower part of the main shaft and covers the generator stator;

the external thread shaft sleeve is sleeved at the upper part of the main shaft through a one-way bearing, and the internal thread hollow sleeve is sleeved outside the external thread shaft sleeve through a transmission thread and is driven to move upwards and reset through a disc-shaped reset spring;

the gland is embedded in the upper end of the base and encapsulates the annular rectifying and power storing module in a cavity above the chuck, and a rubber cap with a flange inside is sleeved on the upper part of the base and is in contact with the upper end surface of the internal thread hollow sleeve;

and a voltage output coil of the generator stator is connected with the lead-out cable through the rectification electricity storage module.

Preferably, the upper end of the disc-shaped return spring is supported in an annular groove on the lower end face of the internal thread 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.

Preferably, the upper end of the disc-shaped return spring is supported on a flange at the upper end of the internal thread hollow sleeve, and the lower end of the disc-shaped return spring is supported in an annular groove at the upper end of the gland.

Preferably, the generator stator is mainly configured as an induction coil, and the generator rotor is mainly configured to include a weight ring having an inner magnetic pole and an outer ring mainly functioning to increase rotational inertia.

Preferably, the outgoing cable can be connected to the electronic device by means of a charging connector at its end.

A notch is formed in the heel of a sole of the shoe, the impact-driven portable charger is integrally embedded into the notch, the top end of a rubber cap protrudes out of the upper surface of the sole by-millimeter, and a lead-out cable of a rectification electricity storage module penetrates through a tendon tube behind the shoe to be connected with electronic equipment.

The invention has the advantages that: the invention uses a pair of micro-driving thread coupling pairs and a one-way bearing to convert micro-impact motion into one-way rotation motion of a rotor of a micro-generator and temporarily stores partial mechanical energy in the form of rotation inertia energy, meanwhile, a stator coil of the generator is coupled with a magnetic field generated by a magnetic pole of the rotor to generate pulsating induced potential, and finally, a rectifying circuit and an energy storage battery of a rectifying and electricity storage module are used to convert the mechanical energy contained in the micro-impact motion into electric energy with stable voltage and charge personal electronic equipment. The invention can effectively utilize the biological energy of human body, and has the advantages of high conversion efficiency and power density, small volume and size, reliable work, low cost and the like.

Drawings

Fig. 1 is a schematic configuration diagram of embodiment 1 of the present invention.

Fig. 2 is a schematic configuration diagram of embodiment 2 of the present invention.

Fig. 3 is an electrical schematic of the present invention.

Fig. 4 is a schematic diagram of an application of the present invention.

In the figure, a machine 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 external thread shaft sleeve 9, an internal thread hollow sleeve 10, a return spring 11, a gland 12, a rubber cap 13 and a rectification and power storage module 14;

a shoe 1000, a sole heel 1001 and a heel tendon tube 1002.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Example 1

Referring to fig. 1 and fig. 3, the embodiment discloses an impact-driven portable charger, which includes 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 external thread shaft sleeve 9, an internal thread hollow sleeve 10, a return spring 11, a gland 12, a rubber cap 13 and a rectification electricity storage module 14;

the main shaft 3 is vertically supported in the machine base 1 through a main bearing 7 by a chuck 6 embedded in the middle of the machine base 1, and is supported in the central position of the machine base 1 through a thrust bearing 2 embedded in the center of a chassis of the machine base 1;

the generator stator 4 is wound at the central position of a chassis in the base 1, and the generator rotor 5 is sleeved at the lower part of the main shaft 3 and covers the generator stator 4;

the external thread shaft sleeve 9 is sleeved at the upper part of the main shaft 3 through a one-way bearing 8, and the internal thread hollow sleeve 10 is sleeved outside the external thread shaft sleeve 9 through a transmission thread and is driven to move upwards and reset through a disc-shaped reset spring 11;

the gland 12 is embedded in the upper end of the base 1 and encapsulates an annular rectifying and power storing module 14 in a cavity above the chuck 6, and a rubber cap 13 with a flange inside is sleeved on the upper part of the base 1 and is contacted with the upper end surface of the internal thread hollow sleeve 10;

and a voltage output coil of the generator stator 4 is connected with the lead-out cable through a rectification electricity storage module 14.

In this embodiment, the upper end of the belleville return spring 11 is supported in an annular groove in the lower end surface of the internally threaded hollow sleeve 10, and the lower end of the belleville return spring 11 is supported on a flange on the inside of the upper end of the chuck 6.

In the present embodiment, the generator stator 4 is mainly configured as an induction coil, and the generator rotor 5 mainly includes an inner magnetic pole and an outer ring that mainly function as a weight ring for increasing rotational inertia.

In this embodiment, the outgoing cable can be connected to the electronic device by means of a charging connector at its end.

Example 2

Referring to fig. 2 and 3, the difference from embodiment 1 is that: in this embodiment, the upper end of the belleville return spring 11 is supported on a flange at the upper end of the internally threaded hollow sleeve 10, and the lower end of the belleville return spring 11 is supported in an annular groove at the upper end of the gland 12.

The working process of the invention is as follows:

in a typical application of this embodiment, as shown in fig. 4, a notch is formed in the heel 1001 of a shoe, the portable charger is inserted into the notch, the top end of the rubber cap 13 is ensured to protrude 3-5 mm from the upper surface of the shoe sole, and the leading-out cable of the rectifying and power storing module 14 passes through the tendon tube 1002 of the shoe and is connected with the personal electronic device. During normal walking of a user, the heel of the user drives the internally threaded hollow sleeve 10 to move downwards through the rubber cap 13 (at the moment, the return spring 11 is compressed), the externally threaded sleeve 9 is driven to rotate positively through the coupling of the transmission threads between the internally threaded hollow sleeve and the externally threaded sleeve 9, the main shaft 3 and the generator rotor 5 are driven to rotate positively through the one-way bearing 8 (at the moment, the one-way bearing is in a locking state), and partial mechanical energy is temporarily stored in the form of rotational inertia energy. When the internal thread hollow sleeve 10 is pressed to the lowest position, the coupling transmission between the internal thread hollow sleeve and the external thread shaft sleeve 9 is stopped, at the moment, the external thread shaft sleeve 9 stops rotating, the main shaft 3 and the generator rotor 5 continue to rotate in the positive direction due to inertia and are not restrained by the one-way bearing 8 (at the moment, the one-way bearing is in an unlocking state), then, the magnetic field generated by the stator coil of the generator and the magnetic pole of the rotor is coupled to generate a pulsating induction potential, and finally, the mechanical energy contained by the treading of the sole by the heel is converted into electric energy with stable voltage by utilizing a rectifying circuit and an energy storage battery of the rectifying and electricity storage module, and the. When the heel is lifted, the rubber cap 13 and the return spring 11 both start to return, the extension of the return spring 11 drives the internal thread hollow sleeve 10 to move upwards, in the process, the coupling of the transmission thread between the return spring and the external thread shaft sleeve 9 drives the external thread shaft sleeve 9 to rotate reversely so that the one-way bearing 8 is in an unlocking state, so that the forward rotation of the main shaft 3 and the generator rotor 5 still kept due to inertia at the moment can not be prevented, and the rotational inertia stored in the main shaft 3 and the generator rotor 5 is still converted into electric energy to continuously charge the personal electronic equipment. The above process is repeated with the tread and release of the sole by the user, so that the invention can convert the mechanical energy of the heel tread into electric energy and continuously charge the personal electronic equipment while the user walks.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.

Claims

1. A shock-driven portable charger characterized in that: the generator 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 external thread shaft sleeve (9), an internal thread hollow sleeve (10), a return spring (11), a gland (12), a rubber cap (13) and a rectification electricity storage module (14);

the main shaft (3) is vertically supported in the machine base (1) through a main bearing (7) by a chuck (6) embedded in the middle of the machine base (1), and is supported in the central position of the machine base (1) through a thrust bearing (2) embedded in the center of a chassis of the machine base (1);

the generator stator (4) is wound at the central position of a chassis in the base (1), and the generator rotor (5) is sleeved at the lower part of the main shaft (3) and covers the generator stator (4);

the external thread shaft sleeve (9) is sleeved on the upper part of the main shaft (3) through a one-way bearing (8), and the internal thread hollow sleeve (10) is sleeved outside the external thread shaft sleeve (9) through a transmission thread and is driven to move upwards and reset through a disc-shaped reset spring (11);

the gland (12) is embedded in the upper end of the base (1) and encapsulates the annular rectifying and electricity-storing module (14) in the cavity above the chuck (6), and the rubber cap (13) with a flange inside is sleeved on the upper part of the base (1) and is contacted with the upper end surface of the internal thread hollow sleeve (10);

and a voltage output coil of the generator stator (4) is connected with the lead-out cable through a rectification electricity storage module (14).

2. The impact-driven portable charger according to claim 1, characterized in that: the upper end of the disc-shaped return spring (11) is supported in an annular groove on the lower end face of the internal thread 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).

3. The impact-driven portable charger according to claim 1, characterized in that: the upper end of the disc-shaped return spring (11) is supported on a flange at the upper end of the internal thread hollow sleeve (10), and the lower end of the disc-shaped return spring (11) is supported in an annular groove at the upper end of the gland (12).

4. The impact-driven portable charger according to claim 1, characterized in that: the generator stator (4) is mainly formed as an induction coil, and the generator rotor (5) mainly comprises an inner magnetic pole and an outer ring which mainly form a counterweight ring for increasing the rotation inertia.

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

6. A shoe comprising an impact-driven portable charger according to any one of claims 1 to 5, characterized in that: the heel (1001) of the sole of the shoe is provided with a notch, the impact-driven portable charger is integrally embedded into the notch, the top end of the rubber cap (13) is enabled to protrude 3-5 mm from the upper surface of the sole, and a lead-out cable of the rectification electricity storage module (14) penetrates through a tendon tube (1002) at the back of the shoe to be connected with electronic equipment.