Hybrid self-generation apparatus using vibration source and wind power source, and wireless sensor using the same

Patent metadata

Field	Value
Publication number	US-10333377-B2
Application number	US-201715831653-A
Country	US
Kind code	B2
Filing date	Dec 5, 2017
Priority date	Dec 12, 2016
Publication date	Jun 25, 2019
Grant date	Jun 25, 2019

Abstract

A hybrid self-generation apparatus includes a vibration source based generation part installed in a mechanical apparatus and converting vibration energy generated during operation or movement of the mechanical apparatus into first electric energy; a wind power source based generation part installed in the mechanical apparatus and converting kinetic energy of air generated in periphery of the mechanical apparatus during operation or movement of the mechanical apparatus into second electric energy; and a power storage part storing the first electric energy and the second electric energy. Also, the wind power source based generation part includes at least one air controller, and the wind power source based generation part automatically operates or stops power generation according to a movement speed of the mechanical apparatus in accordance with operation of the at least one air controller.

First claim

What is claimed is:

1. A hybrid self-generation apparatus comprising:
a vibration source based generation part installed in a mechanical apparatus and converting vibration energy generated during operation or movement of the mechanical apparatus into first electric energy;
a wind power source based generation part installed in the mechanical apparatus and converting kinetic energy of air generated in periphery of the mechanical apparatus during operation or movement of the mechanical apparatus into second electric energy; and
a power storage part storing the first electric energy and the second electric energy,
wherein the wind power source based generation part includes at least one air controller, and the wind power source based generation part automatically operates or stops power generation according to a movement speed of the mechanical apparatus according to operation of the at least one air controller,
wherein the wind power source based generation part operates in a first time period during which the movement speed of the mechanical apparatus is equal to or greater than a first speed and equal to or less than a second speed,
wherein the vibration source based generation part operates in a second time period during which the movement speed of the mechanical apparatus exceeds the second speed, and
wherein an air inlet of the at least one air controller is opened in the first time period, and closed in the second period.

2. The hybrid self-generation apparatus according to claim 1 , wherein the vibration source based generation part operates in the first time period and the second time period.

3. The hybrid self-generation apparatus according to claim 1 , wherein power generated by the wind power source based generation part or the vibration source based generation part or power stored in the power storage part is supplied to a wireless sensor installed in the mechanical apparatus.

4. The hybrid self-generation apparatus according to claim 1 , wherein the at least one air controller comprises:
a housing having an inner space, an air inlet at one side of the inner space, and an air outlet at the other side of the inner space;
a first blocking wall which is installed to divide the inner space between the one side and the other side and permits air flow between the one side and the other side;
a second blocking wall which is installed to divide the internal space between the one side and the first blocking wall and has a center hole permitting air flow between the one side and the other side;
a first air sensor plate which is disposed with a first tension spring between the first air sensor plate and the first blocking wall and blocks the center hole at the other side when a tension of the first tension spring is less than a first pressure; and
a second air sensor plate which is disposed in a direction of the one side on the first air sensor plate with an interval corresponding to an interval between the first blocking wall and the first air sensor plate.

5. The hybrid self-generation apparatus according to claim 4 , wherein the at least one air controller further includes an air reflector protruding from an inner wall between the first blocking wall and the second blocking wall of the housing to guide the air flow from the one side to the other side.

6. The hybrid self-generation apparatus according to claim 4 , wherein the at least one air controller includes a first air controller and a second air controller which face each other with at least one rotor blade of the wind power generator interposed therebetween.

7. The hybrid self-generation apparatus according to claim 1 , wherein the wind power source based generation part includes:
a wind power generator having a rotor, at least one rotor blade coupled to the rotor, a stator surrounding the rotor, and a coil installed in the rotor or the stator;
the at least one air controller controlling air flow to be supplied to the at least one rotor blade; and
a first rectifier rectifying alternating current (AC) output from the wind power generator.

8. The hybrid self-generation apparatus according to claim 7 , wherein the vibration source based generation part includes:
a vibration generator having a vibrator vibrating in one direction, a winding coil disposed around the vibrator to form circular or polygonal surfaces orthogonal to or intersecting with the one direction, and a stator supporting the winding coil; and
a second rectifier rectifying alternating current (AC) output from the vibration generator.

9. The hybrid self-generation apparatus according to claim 8 , wherein the power storage part includes a super capacitor for storing a first direct current (DC) output from the first rectifier and a second DC output from the second rectifier.

10. The hybrid self-generation apparatus according to claim 9 , wherein the power storage part further includes a protection circuit connected in parallel between both ends of the super capacitor between the super capacitor and a load, when the both ends of the super capacitor are connected in parallel to the load.

11. The hybrid self-generation apparatus according to claim 8 , wherein the power storage part further includes:
a first super capacitor storing a first direct current (DC) output from the first rectifier;
a second super capacitor storing a second DC output from the second rectifier; and
a switching circuit for connecting one of the first super capacitor and the second super capacitor to a load.

12. The hybrid self-generation apparatus according to claim 11 , wherein the power storage part further includes a sensor generating or outputting a control signal for changing an operation mode of the switching circuit in accordance with operation state of the wind power source based generation part.

13. A wireless sensor comprising:
a hybrid self-generation apparatus according to claim 1 ; and
a sensor device operating based on power generated by the hybrid self-generation apparatus.

14. The wireless sensor according to claim 13 , further comprising a communication device operating based on the power generated by the hybrid self-generation apparatus.

15. The wireless sensor according to claim 14 , wherein the hybrid self-generation apparatus generates electric power by using a vibration source and a wind power source generated during movement of a train.

16. An operation method of a hybrid self-generation apparatus, the operation method comprising:
converting, by a vibration source based generation part installed in the mechanical apparatus, vibration energy generated during operation or movement of a mechanical apparatus into first electric energy;
converting, by a wind power source based generation part installed in the mechanical apparatus, kinetic energy of air generated in periphery of a mechanical apparatus during operation or movement of the mechanical apparatus into second electric energy; and
storing, by a power storage part, the first electric energy and the second electric energy,
wherein the wind power source based generation part includes at least one air controller, and the wind power source based generation part automatically operates or stops power generation according to a movement speed of the mechanical apparatus according to operation of the at least one air controller,
wherein the wind power source based generation part operate in a first time period during which the movement speed of the mechanical apparatus is equal to or greater than a first speed and equal to or less than a second speed,
wherein the vibration source based generation part operates in a

Assignees

• Electronics & Telecommunications Res Inst

Inventors

• Kim Young Il
• Choi Byeong Cheol
• Bang Hyo Chan
• Yeo Geon Min
• Lim Sun Hwa
• Park Dae Geun
• Song Soon Yong

Classifications

• F01D15/10

  Adaptations for driving, or combinations with, electric generators · CPC title

• B61C17/06 Primary

  Power storing devices · CPC title

• H02K7/18

  Structural association of electric generators with mechanical driving motors, e.g. with turbines · CPC title

• F03D9/32

  on moving objects, e.g. vehicles · CPC title

• H02K35/02 Primary

  with moving magnets and stationary coil systems · CPC title