CN108736643B - Low-energy-consumption electric fan power generation device - Google Patents

Low-energy-consumption electric fan power generation device Download PDF

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Publication number
CN108736643B
CN108736643B CN201710278779.7A CN201710278779A CN108736643B CN 108736643 B CN108736643 B CN 108736643B CN 201710278779 A CN201710278779 A CN 201710278779A CN 108736643 B CN108736643 B CN 108736643B
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CN
China
Prior art keywords
fan
generator
rotor
center
shell
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Expired - Fee Related
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CN201710278779.7A
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Chinese (zh)
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CN108736643A (en
Inventor
郑钧尹
郑荣捷
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Individual
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Individual
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Priority to CN201710278779.7A priority Critical patent/CN108736643B/en
Publication of CN108736643A publication Critical patent/CN108736643A/en
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Expired - Fee Related legal-status Critical Current
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/10—Combinations of wind motors with apparatus storing energy
    • F03D9/11—Combinations of wind motors with apparatus storing energy storing electrical energy
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1823—Rotary generators structurally associated with turbines or similar engines
    • H02K7/183—Rotary generators structurally associated with turbines or similar engines wherein the turbine is a wind turbine
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

Abstract

A low-energy-consumption electric fan power generation device is provided, wherein a motor is arranged in a housing and connected with a first fan, and the generator is connected with the second fan, the first fan and the second fan are relatively close in reverse direction and are in a relatively eccentric state, the power supply device supplies the motor with the rechargeable battery to drive the first fan to rotate to generate wind energy, the wind energy is utilized to drive the relatively eccentric second fan to rotate relatively in a short distance in the shell, air is disturbed at four positions in the shell to enter and exit the air, and the heat dissipation effect of the motor and the generator is improved, the second fan drives the second rotor of the generator to rotate, so that the generator generates power to be supplied to the rechargeable battery, the rechargeable battery recovers the power and then supplies the motor to operate to generate wind energy, the wind energy is utilized to drive the generator to continuously generate electricity, so that the wind energy generator can be directly operated and used in any place and time period, and the electricity use time of the rechargeable battery is prolonged.

Description

Low-energy-consumption electric fan power generation device
Technical Field
The present invention relates to a power generator, and more particularly to a low power consumption electric fan power generator.
Background
Generally, various fans are generally powered by a commercial power supply motor, and the motor drives the fan blades to rotate, so as to force the air behind the fan blades to be driven forward and blown, thereby achieving the purpose of blowing wind force to make the air flow.
However, these fan motors must be supplied with commercial power, and thus cannot be used at any time in various places. And the mechanical energy generated by the motor for the fan is directly consumed by doing work because the mechanical energy is not recycled at present, and the unnecessary energy waste is considerable in the process of daily accumulation. Therefore, how to solve the above problems is an urgent issue to be studied by those skilled in the art.
Disclosure of Invention
The invention mainly aims to provide a low-energy-consumption electric fan power generation device which can be directly operated and used at any place and time and prolongs the power use time of a rechargeable battery.
Another objective of the present invention is that the motor can selectively drive the first fan to rotate at an accelerated speed to increase the wind power, and can selectively drive the first fan to rotate at a decelerated speed to increase the torque.
It is still another object of the present invention to provide a power supply device and a rechargeable battery that can selectively output power to an external device according to the requirement.
To achieve the above object, the low power consumption electric fan generator according to the present invention comprises: the shell comprises a first side wall, an opposite second side wall and a connected peripheral wall, and the shell is provided with a plurality of ventilation openings; the motor is arranged in the shell and comprises a first stator and a first rotor which are sleeved in and out of the same center, and a first rotating shaft is penetrated and combined in the center of the first rotor; a first fan driven by the first rotor and the first shaft of the motor; the generator is arranged in the shell and comprises a second stator and a second rotor which are sleeved inside and outside the same center; the second fan drives the second rotor of the generator to rotate, and the first fan and the second fan are opposite and close to each other; the power supply device is arranged on the shell and comprises a rechargeable battery connected with a starting switch, the rechargeable battery is connected with the generator, and the starting switch is connected with the motor; when the rechargeable battery supplies power to the motor, the first rotating shaft of the motor drives the first fan to rotate to generate wind energy, the wind energy is utilized to drive the second fan to rotate relatively in the shell at a short distance, and the second fan drives the second rotor of the generator to rotate, so that the generator generates power to supply the power to the rechargeable battery; the method is characterized in that: the center of the first fan and the center of the second fan are in an eccentric state, so that a radial spacing distance is formed between the center line of the first fan and the center line of the second fan, and air enters and exits from four positions in the shell in a disturbing mode.
In the low energy consumption electric fan power generation apparatus, the housing is provided with a support at an interval between the first side wall and the second side wall, the motor is provided with a casing at an outer periphery thereof, the casing is fixedly arranged at one side of the support close to the first side wall, one end of the first rotating shaft extends out of the opposite side of the support, the generator is fixedly arranged at the second side wall, the first fan is arranged between the support and the second fan, and the second fan is arranged between the first fan and the second side wall.
In the low-energy-consumption electric fan power generation device, the plurality of ventilation openings of the housing are distributed on the first side wall, the second side wall, the peripheral wall and the support, and the other end of the first rotating shaft of the motor is fixedly connected with the cooling fan.
In the low energy consumption electric fan power generation apparatus, the generator has a base fixed to the second side wall, a second rotating shaft extending out of the generator is pivoted at the center of the base, the center of the second fan is fixedly connected to the second rotating shaft, the second rotor of the generator is sleeved around the second stator at intervals, the second rotor is fixedly sleeved with a rotor base, and one side of the rotor base is fixedly connected to the center of the second fan.
In the low-energy-consumption electric fan power generation apparatus, the center of the first fan is fixedly connected to one end of the first rotating shaft of the motor.
In the low-energy-consumption electric fan power generation apparatus, one end of the first rotating shaft of the motor is fixedly connected to a driving wheel, the other side of the bracket is provided with a supporting shaft, the first fan is pivotally connected to the supporting shaft, a driven wheel is fixedly connected to a center of one side of the first fan, and the driving wheel drives the driven wheel and the first fan to accelerate or decelerate.
In the low-energy-consumption power generation device with an electric fan, the casing is fixedly disposed in the housing, one end of the first rotating shaft extends through the center of the second fan, and one end of the first rotating shaft is fixedly connected to a driving wheel, a first side wall of the housing is provided with a fulcrum, the first fan is pivoted to the fulcrum, and a driven wheel is fixedly connected to the center of one side of the first fan, the driving wheel drives the driven wheel and the first fan to rotate at an accelerated speed to improve wind power, the generator is concentrically sleeved on the periphery of the electric motor at intervals, the second rotor is sleeved with a rotor base, one side of the rotor base is fixedly connected to the center of the second fan, and the center of the second fan is pivoted to the casing.
In the low-energy-consumption power generation device of the electric fan, a charging controller is connected in series between the rechargeable battery and the generator of the power supply device, and the rechargeable battery is connected to a boost controller to output electric power.
The invention has the beneficial effects that: the invention provides a low-energy-consumption electric fan power generation device, which utilizes a motor to drive a first fan to rotate to generate wind energy, enables the wind power to drive a second fan which is relatively eccentric to rotate in a short distance in a shell, enables air to be disturbed around the shell to enter and exit air so as to improve the heat dissipation effect of the motor and a generator, and drives the generator to generate power so as to generate power to be supplied to a rechargeable battery of a power supply device, enables the rechargeable battery to recover the power, then supplies the motor to operate to generate the wind energy, and utilizes the wind energy to drive the generator to continue generating the power, so that the low-energy-consumption electric fan power generation device can be directly operated and used in any place and time period, and prolongs the power.
Drawings
Fig. 1 is a structural view of a low power consumption electric fan generator according to a first embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a block diagram of FIG. 1;
FIG. 4 is a structural diagram of a low power consumption electric fan generator according to a second embodiment of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4;
FIG. 6 is a structural view of a low power consumption electric fan generator according to a third embodiment of the present invention;
FIG. 7 is an enlarged view of a portion of FIG. 6;
fig. 8 is a structural view of a low power consumption electric fan generator according to a fourth embodiment of the present invention;
fig. 9 is a partially enlarged view of fig. 8.
Description of reference numerals:
1. outer casing
11. First side wall
12. Second side wall
13. Outer peripheral wall
14. Support frame
111. 121, 131, 141, vent
2. Electric motor
21. Casing (CN)
211. Bolt
22. First stator
23. First rotor
24. First rotating shaft
241. 242, bearing
25. Carbon brush
26. Heat radiation fan
27. Driving wheel
28. Transmission belt
3. First fan
31. Fan blade
32. Center line
33. Support shaft
34. Driven wheel
4. Generator
41. Engine base
42. Second stator
43. Second rotor
44. Second rotating shaft
441. Bearing assembly
45. Rotor base
5. Second fan
51. Fan blade
52. Center line
6. Power supply device
61. Rechargeable battery
62. Charging controller
63. Starting switch
64. Boost controller
65. External electrical appliance
66. Charging power supply
L, radial separation distance.
Detailed Description
To achieve the above objects, the present invention provides a technical means and its effects, which are described below with reference to the accompanying drawings as follows:
first, referring to fig. 1 to 3, it can be clearly seen that the low power consumption electric fan generator of the present invention comprises:
a housing 1 comprises a first side wall 11, an opposite second side wall 12 and a connected peripheral wall 13, wherein a support 14 is arranged between the first side wall 11 and the second side wall 12 of the housing 1 in parallel at intervals, and the first side wall 11, the second side wall 12, the peripheral wall 13 and the support 14 are respectively provided with ventilation openings 111, 121, 131 and 141.
A motor 2 is arranged in the shell 1, the motor 2 comprises a first stator 22 and a first rotor 23 which are sleeved in and out at the same center, and are electrically connected with carbon brushes 25, and a first rotating shaft 24 is penetratingly combined at the center of the first rotor 23; the motor 2 has a housing 21 fixed on one side of the bracket 14 close to the first sidewall 11, one end of the first shaft 24 extends out of the other side of the bracket 14 through the bearing 241, and the other end of the first shaft 24 is fixed with a heat dissipation fan 26.
A first fan 3 is provided with a plurality of blades 31 on the periphery thereof, and the center of the first fan 3 is fixedly connected to one end of the first rotating shaft 24 of the motor 2 to receive the rotation of the first rotor 23 and the first rotating shaft 24 of the motor 2.
The generator 4 includes a second stator 42 and a second rotor 43 sleeved inside and outside the same center, the generator 4 has a base 41 fixed on the second sidewall 12 in the housing 1, a second rotating shaft 44 extending out of the generator 4 and the bearing 441 is pivoted at the center of the base 41, the second rotor 43 of the generator 4 is sleeved on the periphery of the second stator 42 at intervals, and the second rotor 43 is sleeved and fixed with a rotor base 45.
A plurality of fan blades 51 are disposed on the periphery of a second fan 5, the center of the second fan 5 is fixedly connected to the second rotating shaft 44 and one side of the rotor base 45 to drive the second rotor 43 of the generator 4 to rotate, the first fan 3 is located between the bracket 14 and the second fan 5, and the second fan 5 is located between the first fan 3 and the second sidewall 12, so that the first fan 3 and the second fan 5 are relatively close to each other in the opposite direction.
A power supply device 6 is disposed in the housing 1, the power supply device 6 includes a rechargeable battery 61 connected to a start switch 63, the rechargeable battery 61 is connected to the generator 4, the start switch 63 is connected to the motor 2, a charge controller 62 is connected in series between the rechargeable battery 61 and the generator 4, and the rechargeable battery 61 is connected to a boost controller 64, so as to selectively output power to the external electrical appliance 65 according to the requirement, for example: a mobile phone, a tablet computer, a pda … …, etc., and the charging controller 62 can be selectively connected to the external charging power source 66 or the commercial power to charge the rechargeable battery 61.
The main feature of the present invention is that the centers of the first fan 3 and the second fan 5 are eccentrically disposed with respect to each other to form a radial distance L between the center line 32 of the first fan 3 and the center line 52 of the second fan 5, so as to drive air to be disturbed around the inside of the housing 1 for air intake and air exhaust through the vents 111, 121, 131, 141. when the rechargeable battery 61 of the present invention supplies electric power to the motor 2 through the start switch 63, the first shaft 24 of the motor 2 drives the first fan 3 to rotate to generate wind energy, the second fan 5 which is relatively eccentric is driven to rotate relatively within the housing 1 at a short distance by the wind energy, and the second rotor 43 of the generator 4 is driven by the second fan 5 to rotate to generate electric power for the generator 4 to be supplied to the rechargeable battery 61, so that the rechargeable battery 61 recovers electric power, and then supplies the electric power generated by the operation of the motor 2, and drives the generator 4 to continue to generate electric power by the wind energy, and the centers of the first fan 3 and the second fan 5 are eccentrically disposed with respect to allow air to be disturbed around the outside of the housing 1 to be discharged to improve the air intake and the efficiency of the electric power supply, thereby enabling the use of the electric power generator 6, and to be directly used for the use of the electric power supply device 64.
Referring to fig. 4 and 5, the second embodiment has the same reference numerals as the corresponding components of the first embodiment, and the difference between the second embodiment and the first embodiment is that one end of the first rotating shaft 24 of the motor 2 is fixedly connected with a driving wheel 27, the other side of the bracket 14 is provided with a supporting shaft 33, the first fan 3 is pivotally connected to the supporting shaft 33, a driven wheel 34 is fixedly connected to the center of one side of the first fan 3, and the driving wheel 27 drives the driven wheel 34 and the first fan 3 to rotate in an accelerating manner in a tooth-joint engagement manner to increase the wind power, or the driving wheel 27 can be designed to drive the first fan 3 to rotate in a decelerating manner to increase the torque.
Referring to fig. 6 and 7, the third embodiment and the second embodiment have the same reference numerals for corresponding parts, and the difference between the third embodiment and the second embodiment is that the transmission wheel 27 and the driven wheel 34 are of a pulley type and are linked by a transmission belt 28.
Referring to fig. 8 and 9, corresponding components of the fourth embodiment and the second embodiment have the same reference numerals, the difference between the fourth embodiment and the second embodiment is that the housing 21 of the motor 2 is fixed to the bracket 14 by bolts 211, one end of the first rotating shaft 24 extends through the center of the second fan 5, one end of the first rotating shaft 24 is fixedly connected with a driving wheel 27, the first side wall 11 of the housing 1 is provided with a supporting shaft 33, the first fan 3 is pivoted on the supporting shaft 33, and a driven wheel 34 is fixedly connected to the center of one side of the first fan 3, so that the driving wheel 27 drives the driven wheel 34 and the first fan 3 to rotate at an accelerated speed to increase the wind power, the second stator 42 and the second rotor 43 of the generator 4 are concentrically and separately sleeved on the periphery of the motor 2, the second rotor 43 is fixedly sleeved with a rotor base 45, one side of the rotor base 45 is fixedly connected to the center of the second fan 5, and the center of the second fan 5 is pivotally connected to the bearing 242 at the opposite end of the casing 21 of the motor 2. When the motor 2 is started, the first rotating shaft 24 of the motor 2 drives the first fan 3 to rotate to generate wind energy, the second fan 5 which is relatively eccentric is driven to rotate relatively by the wind energy in the casing 1 at a short distance, and the second fan 5 drives the second rotor 43 of the generator 4 to rotate, so that the generator 4 generates electric power to output.
The above-described embodiments are intended to be illustrative, rather than restrictive, and all such changes and modifications that may be made by one skilled in the art without departing from the spirit of the invention are intended to be included within the scope of the appended claims.

Claims (7)

1. A low power consumption electric fan power generation device comprises:
the shell comprises a first side wall, an opposite second side wall and a connected peripheral wall, and the shell is provided with a plurality of ventilation openings;
the motor is arranged in the shell and comprises a first stator and a first rotor which are sleeved in and out of the same center, and a first rotating shaft is penetrated and combined in the center of the first rotor;
a first fan driven by the first rotor and the first shaft of the motor;
the generator is arranged in the shell and comprises a second stator and a second rotor which are sleeved inside and outside the same center;
the second fan drives the second rotor of the generator to rotate, and the first fan and the second fan are opposite and close to each other;
the power supply device is arranged on the shell and comprises a rechargeable battery connected with a starting switch, the rechargeable battery is connected with the generator, and the starting switch is connected with the motor;
when the rechargeable battery supplies power to the motor, the first rotating shaft of the motor drives the first fan to rotate to generate wind energy, the wind energy is utilized to drive the second fan to rotate relatively in the shell at a short distance, and the second fan drives the second rotor of the generator to rotate, so that the generator generates power to supply the power to the rechargeable battery;
the center of the first fan and the center of the second fan are in an eccentric state, so that a radial spacing distance is formed between the center line of the first fan and the center line of the second fan, and air is disturbed at four positions in the shell to enter and exit air;
the electric motor is characterized in that a support is arranged between the first side wall and the second side wall of the shell at intervals, a shell is fixedly arranged on one side of the support close to the first side wall at the periphery of the electric motor, one end of a first rotating shaft extends out of the other side of the support opposite to the first side wall, the electric generator is fixedly arranged on the second side wall, the first fan is positioned between the support and the second fan, and the second fan is positioned between the first fan and the second side wall.
2. The electric fan generator with low power consumption of claim 1, wherein the plurality of ventilation openings of the housing are distributed on the first sidewall, the second sidewall, the peripheral wall and the bracket, and the other end of the first rotating shaft of the motor is fixedly connected with a heat dissipation fan.
3. The low power consumption electric fan generator apparatus of claim 1, wherein the generator has a base fixed to the second sidewall, a second shaft extending out of the generator is pivotally connected to the center of the base, the center of the second fan is fixed to the second shaft, the second rotor of the generator is sleeved around the second stator, a rotor base is sleeved and fixed to the second rotor, and one side of the rotor base is fixed to the center of the second fan.
4. The low power consumption electric fan power generation apparatus of claim 1, wherein a center of the first fan is fixed to one end of a first rotating shaft of the electric motor.
5. The electric fan generator with low power consumption as claimed in claim 1, wherein a driving wheel is fixed to one end of the first rotating shaft of the electric motor, a supporting shaft is disposed on the other side of the frame, the first fan is pivotally connected to the supporting shaft, a driven wheel is fixed to a center of one side of the first fan, and the driving wheel drives the driven wheel and the first fan to accelerate or decelerate.
6. A low power consumption electric fan power generation device comprises:
the shell comprises a first side wall, an opposite second side wall and a connected peripheral wall, and the shell is provided with a plurality of ventilation openings;
the motor is arranged in the shell and comprises a first stator and a first rotor which are sleeved in and out of the same center, and a first rotating shaft is penetrated and combined in the center of the first rotor;
a first fan driven by the first rotor and the first shaft of the motor;
the generator is arranged in the shell and comprises a second stator and a second rotor which are sleeved inside and outside the same center;
the second fan drives the second rotor of the generator to rotate, and the first fan and the second fan are opposite and close to each other;
the power supply device is arranged on the shell and comprises a rechargeable battery connected with a starting switch, the rechargeable battery is connected with the generator, and the starting switch is connected with the motor;
when the rechargeable battery supplies power to the motor, the first rotating shaft of the motor drives the first fan to rotate to generate wind energy, the wind energy is utilized to drive the second fan to rotate relatively in the shell at a short distance, and the second fan drives the second rotor of the generator to rotate, so that the generator generates power to supply the power to the rechargeable battery;
the center of the first fan and the center of the second fan are in an eccentric state, so that a radial spacing distance is formed between the center line of the first fan and the center line of the second fan, and air is disturbed at four positions in the shell to enter and exit air;
the electric motor is characterized in that the periphery of the electric motor is provided with a shell fixedly arranged in a shell, one end of a first rotating shaft extends out of the center of a second fan, one end of the first rotating shaft is fixedly connected with a driving wheel, the first side wall of the shell is provided with a fulcrum, the first fan is pivoted on the fulcrum, the center of one side of the first fan is fixedly connected with a driven wheel, the driving wheel drives the driven wheel and the first fan to rotate in an accelerating mode so as to improve wind power, a generator is concentrically sleeved on the periphery of the electric motor at intervals, a rotor seat is fixedly arranged on a second rotor sleeve, one side of the rotor seat is fixedly connected with the center of the second fan, and the center of.
7. The electric fan generator of claim 6, wherein a charge controller is connected in series between the rechargeable battery and the generator, and the rechargeable battery is connected to a boost controller for outputting power.
CN201710278779.7A 2017-04-25 2017-04-25 Low-energy-consumption electric fan power generation device Expired - Fee Related CN108736643B (en)

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Application Number Priority Date Filing Date Title
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CN108736643B true CN108736643B (en) 2020-07-14

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Publication number Priority date Publication date Assignee Title
US6232690B1 (en) * 1997-03-04 2001-05-15 Papst-Motoren Gmbh & Co. Kg Electronically commutated DC
CN2552247Y (en) * 2002-07-05 2003-05-21 陈俊德 Generating device
CN2621357Y (en) * 2003-05-14 2004-06-23 元山科技工业股份有限公司 Compound outer-pole fan
US7208846B2 (en) * 2005-04-12 2007-04-24 Chao-Hsiung Liang Method and apparatus for generating electricity by waste airflow of air conditioning equipment

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8963359B2 (en) * 2010-10-19 2015-02-24 Steven Evans Apparatus and method for co-generation of electricity
DE102010056523B4 (en) * 2010-12-29 2022-02-10 Robert Bosch Gmbh Portable battery powered tool with electric buffer element and battery replacement method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6232690B1 (en) * 1997-03-04 2001-05-15 Papst-Motoren Gmbh & Co. Kg Electronically commutated DC
CN2552247Y (en) * 2002-07-05 2003-05-21 陈俊德 Generating device
CN2621357Y (en) * 2003-05-14 2004-06-23 元山科技工业股份有限公司 Compound outer-pole fan
US7208846B2 (en) * 2005-04-12 2007-04-24 Chao-Hsiung Liang Method and apparatus for generating electricity by waste airflow of air conditioning equipment

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