# US 12,015,358 B2 · Portable charging device with kinetic energy recovery

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 12,015,358 B2
- Document ID: US12015358B2
- Status: Granted
- Kind: B2
- Application number: 17/880,557
- Filed: 2022-08-03
- Published: 2023-09-07
- Granted: 2024-06-18
- Earliest claimed: 2022-03-01
- Assignees: Southwest Jiaotong University
- Applicants: Southwest Jiaotong University
- Inventors: Zhengge Chen; Jianping Xu; Songrong Wu
- Web page: https://patentgrep.com/patent/US12015358B2

## CPC

- H02N 11/002: {Generators}
- H02J 7/00: Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J 7/32: for charging batteries from a charging set comprising a non-electric prime mover {rotating at constant speed}
- H02J 7/50: acting upon multiple batteries simultaneously or sequentially
- H02J 7/70: characterised by the mechanical construction
- H02K 7/00: Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K 35/02: with moving magnets and stationary coil systems
- H02M 1/0012: {Control circuits using digital or numerical techniques (in DC/DC converters H02M3/157, H02M3/33515; in DC-AC converters H02M7/53873)}
- H02M 1/4233: {using a bridge converter comprising active switches}
- H02M 7/217: using semiconductor devices only
- H02J 2207/20: Charging or discharging characterised by the power electronics converter
- H02K 5/00: Casings; Enclosures; Supports
- Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
- H02N: ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53})
- H02M: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers H01F; dynamo-electric converters H02K47/00; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters H02P)
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

The disclosure provides a portable charging device with kinetic energy recovery comprising a machine body, a kinetic energy recovery component, an AC-DC electric energy conversion component, and an energy storage component. The kinetic energy recovery component is embedded in the machine body by a locking assembly, and comprises a ring body, two springs, a conductor coil, a permanent magnet sphere, a guide rod, two sealing covers, and two bumps. The two sealing covers are symmetrically and fixedly attached to both sides of the ring body, and the middle part of the ring body and the two sealing covers form a vacuum cavity. The energy storage component is arranged at the right side of the machine body. The AC-DC electric energy conversion component is arranged at the bottom side of the machine body, and two first conductive blocks are electrically connected to the AC-DC electric energy conversion component.

## Claims

### Claim 1

A portable charging device with kinetic energy recovery, comprising a machine body, a kinetic energy recovery component, an alternating current-direct current (AC-DC) electric energy conversion component, and an energy storage component, wherein the kinetic energy recovery component is embedded in the machine body by a locking assembly; and the kinetic energy recovery component comprises a ring body, a conductor coil, a permanent magnet sphere, and two sealing covers, wherein the ring body is oval, the two sealing covers are symmetrically and fixedly attached to both sides of the ring body, and a middle part of the ring body and the two sealing covers form a vacuum cavity; the permanent magnet sphere is able to reciprocate up and down in the vacuum cavity; the conductor coil is a wire and is symmetrically, fixedly and hermetically wound on both sides of the ring body; both ends of the conductor coil are electrically connected with two first conductive blocks; the two first conductive blocks are fixedly embedded in the ring body; the energy storage component is arranged at the right side of the machine body; the AC-DC electric energy conversion component is arranged at a bottom side of the machine body; and the two first conductive blocks are electrically connected to the AC-DC electric energy conversion component.

### Claim 2 (depends on 1)

The portable charging device with kinetic energy recovery according to claim 1, wherein the kinetic energy recovery component further comprises two springs, a guide rod, and two bumps; wherein the two bumps are symmetrically and fixedly installed in the vacuum cavity inside the ring body; the guide rod is perpendicularly arranged between the two bumps, and both ends of the guide rod are respectively nested in the two bumps; the guide rod is slidingly sleeved outside by the permanent magnet sphere; the guide rod is sleeved outside by the two springs; ends, close to each other, of the two springs are fixedly connected to both ends of the permanent magnet sphere respectively; and ends, away from each other, of the two springs are fixedly connected to surfaces, close to each other, of the two bumps respectively.

### Claim 3 (depends on 1)

The portable charging device with kinetic energy recovery according to claim 1, wherein the locking assembly comprises a first clamping block, two second clamping blocks, a plurality of pressure springs, and two sets of push components; wherein the first clamping block and the two second clamping blocks are slidingly embedded in the machine body, and protruding ends are circular-arc; a placement cavity, which is C-shaped, is deployed in the machine body; the plurality of pressure springs are all arranged in the placement cavity and are respectively located at end portions of the first clamping block and the two second clamping blocks; ends, close to the ring body, of the plurality of pressure springs are fixedly connected to end surfaces of the first clamping a block and the two second clamping blocks respectively; and the two sets of push components are symmetrically and slidingly arranged in the placement cavity.

### Claim 4 (depends on 3)

The portable charging device with kinetic energy recovery according to claim 3, wherein each of the two sets of push components comprises a push rod, a first push block, a second push block, and a plurality of rollers; wherein the push rod is L-shaped; the plurality of rollers are symmetrically and rotationally installed at both sides of the push rod by hinge pins; the push rod is slidingly installed in the placement cavity by the plurality of rollers; an end portion of a horizontal section of the push rod is fixedly connected to an end portion of the second clamping block; the first push block is fixedly installed at a left side surface of the first clamping block; the second push block is perpendicularly and fixedly installed at a bottom end of a vertical section of the push rod; the first push block and the second push block are in sliding contact; and surfaces, close to each other, of the first push block and the second push block both are inclined surfaces.

### Claim 5 (depends on 3)

The portable charging device with kinetic energy recovery according to claim 3, wherein two second conductive blocks are fixedly embedded inside bottom sides of the two second clamping blocks; the two second conductive blocks are electrically connected to the AC-DC electric energy conversion component; top ends of the two second conductive blocks are groove-shaped; and the two first conductive blocks are respectively clamped with the two second conductive blocks.

### Claim 6 (depends on 5)

The portable charging device with kinetic energy recovery according to claim 5, wherein the AC-DC electric energy conversion component comprises a boost inductor, a first low-frequency switching transistor, a second low-frequency switching transistor, a first high-frequency switching transistor, a second high-frequency switching transistor, a first output diode, a second output diode, a first output capacitor, and a second output capacitor; wherein one end of the boost inductor is electrically connected to one end of one second conductive block; a source electrode of the first low-frequency switching transistor and a drain electrode of the second low-frequency switching transistor are electrically connected to another end of the boost inductor; a source electrode of the first high-frequency switching transistor, a drain electrode of the second high-frequency switching transistor, a negative electrode of the first output capacitor and an anode of the second output capacitor are electrically connected to another second conductive block; a drain electrode of the first high-frequency switching transistor and an anode of the first output diode are electrically connected to a drain electrode of the first low-frequency switching transistor; a source electrode of the second high-frequency switching transistor and a cathode of the second output diode are electrically connected to a source electrode of the second low-frequency switching transistor; a cathode of the first output diode is electrically connected to a positive electrode of the first output capacitor and one end of the energy storage component; and an anode of the second output diode is electrically connected to a negative electrode of the second output capacitor and another end of the energy storage component.

### Claim 7 (depends on 6)

The portable charging device with kinetic energy recovery according to claim 6, wherein the first low-frequency switching transistor, the second low-frequency switching transistor, the first high-frequency switching transistor and the second high-frequency switching transistor are MOSFET (Metal Oxide Semiconductor Field Effect Transistor) switches; the energy storage component comprises a plurality of battery packs which are arranged in an interior of energy storage component, and the plurality of battery packs are electrically connected to the energy storage component; and an output end of the energy storage component is electrically connected with a load.