KR20230092056A - Energy harvesting power generation apparatus using unutilized energy of vehicle - Google Patents

Abstract

A lower seat, an upper seat that moves up and down relative to the lower seat, and an elastic part that is elastically installed between the lower seat and the upper seat to apply an elastic restoring force so that electric power can be generated by effectively using the vibration generated by the absorber of the vehicle. , Conversion unit provided between the top sheet and the lower sheet to convert the up and down motion of the top sheet into continuous rotational force in one direction and output it to the outside, connected to the output of the conversion unit to produce power with the rotational force applied from the conversion unit Provided is an energy harvest generator using unused energy of a means of transportation including a generator.

Description

Energy harvesting power generation device using unutilized energy of transportation

The present disclosure relates to an energy harvest generator for generating electric power using unused energy of a means of transportation.

For example, many technologies are being developed for using unused energy that is discarded and not used, such as generating electric power using vibration energy generated during driving of a vehicle.

Conventional devices, including Patent Publication No. 2018-0051277, have a structure in which a magnet and a coil are installed in an absorber that moves up and down by vibration to convert vibration energy into electric power.

However, this conventional structure has a problem in that the amount of power generation is very small compared to the peak voltage because the area where the magnet and the coil meet becomes narrow as the vibration speed slows down at both ends of the vertical vibration range. In addition, the overall size of the generator increases due to the end effect, and the peak voltage is high, making circuit configuration difficult and costly.

On the other hand, the present applicant has developed and applied for a system that generates power using energy that is not utilized and discarded. Korean Patent Application No. 2017-0088899 (Title of Invention: Self-Generation System Using Unused Energy) is an invention filed by the present applicant, which discloses a structure for generating electric power by converting unused energy from rocking motion into rotational force. are doing

In recent years, as problems such as the increase in vehicles and oil depletion have emerged, the demand for the use of discarded and unused energy has increased. Accordingly, applying a power generation system using unused energy to an absorber of a vehicle that moves up and down to increase power generation effect provides many advantages to the user.

An object of the present invention is to provide an energy harvest generator using unused energy of a means of transportation capable of generating electric power by effectively using vibration generated by an absorber of a vehicle.

An object of the present invention is to provide an energy harvesting power generation device using unused energy of a means of transportation capable of preventing a decrease in power generation efficiency due to the end effect of a linear generator and maximizing the amount of power generation.

An object of the present invention is to provide an energy harvest generator using unused energy of a means of transportation, which can further reduce the size of a generator by lowering the peak/average output and has an easier configuration of an electric circuit.

An object of the present invention is to provide an energy harvesting power generation device using unused energy of a means of transportation capable of reducing rotational speed fluctuations and minimizing mechanical energy loss.

The power generation device of the present embodiment includes a lower sheet, an upper sheet that moves up and down relative to the lower sheet, and an elastic part elastically installed between the lower sheet and the upper sheet to apply an elastic restoring force, installed in an absorber for damping vibration. It may be a structure that generates power from vibration energy.

The generator is provided between the upper sheet and the lower sheet and converts the up and down motion of the top sheet into a continuous rotational force in one direction and outputs it to the outside, and is connected to the output of the conversion unit to convert the rotational force applied from the conversion unit. It may include a generator that produces power.

The generator may further include a equalization unit installed at an output side of the conversion unit to uniformly output rotational force to the generator.

The conversion unit is installed on the lower sheet and vertically extending a vertical bar, a belt installed between the vertical bar and the lower sheet, and rotatably installed on the upper sheet and spaced apart from each other to be engaged with the belt, respectively, so as to engage the top and bottom of the upper sheet. A pair of pulleys rotated during movement, an output shaft installed on each pulley and rotated, a one-way clutch installed between each pulley and the output shaft to limit the rotational direction of the output shaft, a rotation gear installed on each output shaft of each pulley, It may include a connecting member that connects between the rotational gears and transmits power between the two rotational gears.

A tension spring installed at the front end of the belt to maintain constant tension of the belt may be further included.

The conversion unit may have a structure in which the pair of pulleys are engaged with both sides of the belt to rotate in opposite directions when the top sheet moves up and down, and one-way clutches installed on each pulley restrict rotation in the same direction. there is.

The converting unit may have a structure in which the pair of pulleys are engaged with the same surface of the belt to rotate in the same direction when the top sheet moves up and down, and the one-way clutch installed on each pulley restricts rotation in opposite directions. there is.

The connecting member may include an intermediate gear connected between the pair of rotation gears.

The connecting member may include a rotating belt fastened between the pair of rotating gears.

The conversion unit is installed on the lower sheet and extends vertically, a first pulley rotatably installed on the upper sheet and in contact with the vertical bar and a second pulley rotatably installed in the upper sheet and in contact with the first pulley A pair of pulleys including pulleys that rotate in opposite directions when the upper sheet moves up and down, an output shaft installed on each pulley and rotated, a one-way clutch installed between each pulley and the output shaft to limit the rotational direction of the output shaft, It may include a rotating gear installed on each of the output shafts of the respective pulleys, and a connecting member connecting the rotating gears to transmit power between the two rotating gears.

The pulley may be made of a pinion gear, and the vertical bar may have a structure in which a rack gear is installed and engaged with the pinion gear.

The conversion unit includes a vertical bar installed on the lower sheet and extending vertically, a belt installed between the vertical bar and the lower sheet, and a pulley rotatably installed on the upper sheet and engaged with the belt to rotate when the upper sheet moves up and down. , a rotation shaft installed on the pulley and rotated, a drive gear installed on the rotation shaft, a one-way clutch installed between the rotation shaft and the drive gear to limit the rotational direction of the drive gear, an output shaft disposed spaced apart from the rotation shaft, and an output shaft A driven gear installed and engaged with the drive gear, a rotation gear installed on the rotation shaft, a one-way clutch installed between the rotation shaft and the rotation gear to limit the rotation direction of the rotation gear, a rotation gear installed on the output shaft, and the rotation shaft And it may include a connecting member for transmitting power between the two rotary gears by connecting between the two rotary gears installed on the output shaft.

The converting unit may have a structure in which one-way clutches installed on the rotating shaft restrict rotation in opposite directions.

The conversion unit is installed on the lower sheet and extends vertically, a vertical bar, a pulley rotatably installed on the upper sheet and engaged with the vertical bar to rotate when the upper sheet is moved up and down, a rotation shaft installed on the pulley and rotated, the rotation shaft A drive gear installed on, a one-way clutch installed between the rotation shaft and the drive gear to limit the rotation direction of the drive gear, an output shaft disposed spaced apart from the rotation shaft, a driven gear installed on the output shaft and engaged with the drive gear, the A rotation gear installed on the rotation shaft, a one-way clutch installed between the rotation shaft and the rotation gear to limit the direction of rotation of the rotation gear, a rotation gear spaced apart from the drive gear installed on the output shaft and installed on the rotation shaft, the rotation shaft and the output shaft It may include a connecting member for transmitting power between the two rotary gears by connecting between the two rotary gears installed in the.

A rack gear may be installed along the vertical bar, and the pulley may have a structure in which a pinion is engaged with the rack gear.

The equalization unit may include a driving shaft connected to the generator and a spirally wound spring installed between the driving shaft and the output shaft.

It may further include rotary blades installed on the drive shaft of the generator and rotated by wind energy generated during vehicle driving to apply rotational force to the drive shaft.

According to this embodiment, electric power can be effectively produced by using the vibration energy of the absorber generated during vehicle operation.

Even if the vibration speed is slowed at both ends of the upper and lower vibration width of the absorber, it is possible to increase power efficiency by securing a stable rotation speed.

By lowering the peak/average power, the size of the generator can be further miniaturized, and the circuit configuration can be simplified to lower the manufacturing cost.

Regardless of the direction of vibration, it is possible to generate power more stably by converting vibration energy into rotational force in one direction and minimizing the change in rotational speed.

1 is a partial cross-sectional view showing an energy harvesting generator installed in an absorber according to the present embodiment.
2 is a diagram showing an energy harvest generator of this embodiment.
Figure 3 is a schematic diagram for explaining the operation of the energy harvest generator of the present embodiment.
4 to 7 are schematic diagrams showing modified examples of the energy harvest generator according to the present embodiment.

Hereinafter, embodiments of the present invention will be described in detail. However, this is presented as an example, and the present invention is not limited thereby, and the present invention is only defined by the scope of the claims to be described later. The embodiments described below may be modified in various forms without departing from the concept and scope of the present invention. Where possible, identical or similar parts are indicated using the same reference numerals in the drawings.

The terminology used below is only for referring to specific embodiments and is not intended to limit the present invention. As used herein, the singular forms also include the plural forms unless the phrases clearly indicate the opposite. As used herein, the meaning of "comprising" specifies specific characteristics, regions, integers, steps, operations, elements, and/or components, and other specific characteristics, regions, integers, steps, operations, elements, elements, and/or groups. does not exclude the presence or addition of

1 and 2 show a power generation device using vibration energy installed in an absorber according to this embodiment, and FIG. 3 shows the action of the power generation device using vibration energy according to this embodiment.

The generator 10 of this embodiment is installed in a shock absorber (hereinafter referred to as an absorber) 100 provided in a vehicle to buffer shock or vibration, and power is generated from vibration energy generated when the absorber 100 moves up and down. can produce

The absorber 100 is elastically installed between the lower sheet 110, the upper sheet 120 that moves up and down relative to the lower sheet 110, and the lower sheet 110 and the upper sheet 120 to apply an elastic restoring force. It may include an elastic part 130 that does. The elastic part 130 may be formed of various structures such as, for example, an elastic spring or a cylinder using a fluid such as hydraulic pressure or gas. Hereinafter, a structure in which an elastic spring is installed in the absorber 100 of this embodiment will be described as an example. In addition, this embodiment will be described as an example when the upper sheet 120 moves up and down with respect to the lower sheet 110 fixed during vertical vibration. Of course, the same action can be obtained even when the lower sheet 110 moves up and down with respect to the upper sheet 120 on the contrary.

While the upper sheet 120 is moved up and down relative to the lower sheet 110 by the vibration of the vehicle, the interval between them is changed. Then, the gap between the top sheet 120 and the bottom sheet 110 is restored to its original state by the elastic restoring force of the elastic part 130 installed between the top sheet 120 and the bottom sheet 110 .

The generator 10 of this embodiment has a structure that turns the generator by converting the vertical movement of the top sheet 120 due to vertical vibration into rotational force.

To this end, as shown, the generator 10 of this embodiment is provided on the top sheet 120, converts the vertical motion of the top sheet 120 into a continuous rotational force in one direction, and outputs the conversion unit 20 to the outside. , It may include a generator 30 that is connected to the output side of the conversion unit 20 and generates power with rotational force applied from the conversion unit 20.

In addition, the generator 10 of the present embodiment may further include a equalization unit 40 installed at the output side of the conversion unit 20 to uniformly output rotational force to the generator 30 .

Thus, this device converts the vertical vibration energy of the top sheet 120 into a uniform rotational force, and by using this rotational force to stably drive the generator 30, it is possible to produce power more efficiently.

The top sheet 120 may be provided with a housing 12 surrounding the components of the present device, including the converter 20 and the generator 30 . The device may be provided inside the housing 12 and protected from the outside.

In this embodiment, the converting unit 20 is a vertical bar 50 installed on the lower sheet 110, a belt 52 installed between the vertical bar 50 and the lower sheet 110, both sides of the belt 52 A pair of pulleys 54 and 55 engaged with the pulleys 54 and 55, output shafts 58 and 59 installed on the pulleys 54 and 55, and one-way clutches 56 installed between the pulleys 54 and 55 and the output shafts 58 and 59 , 57), rotational gears 60 and 61 installed on each output shaft, and an intermediate gear 62 that transmits power by connecting the two rotational gears 60 and 61.

The vertical bar 50 may be a bar structure that is fixed to the lower sheet 110 and extends vertically toward the upper sheet 120. The vertical bar 50 has a lower end fixed to the lower seat 110 and moves with the lower seat 110. Thus, relative movement between the top of the vertical bar 50 and the lower seat 110 does not occur.

The vertical bar 50 may serve as a guide for the top sheet 120. As shown in FIG. 1, at least two or more vertical bars 50 are arranged at intervals and extend upward, and the upper end of the vertical bar 50 is supported by a separate circular bracket 51. In addition, a guide holder 53 in which the vertical bar 50 is inserted and guided may be further provided in the top sheet 120 . Accordingly, the upper sheet 120 is coupled to the vertical bar 50 via the guide holder 53 and moves up and down along the vertical bar 50 installed between the circular bracket 51 and the lower sheet 110. can Thus, the top sheet 120 can move up and down more stably with respect to the lower sheet 110.

The belt 52 may be, for example, a timing belt 52 having gears formed on its surface. The belt 52 may have a structure in which gears are formed on both sides so that the pulleys 54 and 55 are engaged on both sides.

The belt 52 extends up and down, one end is fixed to the upper end of the vertical bar 50 (or circular bracket 51), and the other end is fixed to the lower seat 110.

In addition, a tension spring 70 may be further installed at one end of the belt 52 to maintain a constant tension of the belt 52 . Accordingly, even when the belt 52 is stretched due to long-term use, it can be stably engaged with the pulleys 54 and 55 by maintaining appropriate tension.

The belt 52 has a structure passing through two pulleys 54 and 55 spaced apart from each other in a zigzag form, so that both sides of the pulleys 54 and 55 may be engaged.

The pulleys 54 and 55 are rotatably installed on the top sheet 120 and spaced apart from each other to engage with the belt 52 and freely rotate when the top sheet 120 moves up and down. The pulleys 54 and 55 may have gears formed along outer circumferential surfaces so as to be engaged with gears formed on the belt 52 .

For convenience of description below, the pair of pulleys 54 and 55 are referred to as a first pulley 54 and a second pulley 55, respectively, and the pulleys 54 and 55 refer to the first pulley 54 ) and the second pulley 55.

The first pulley 54 and the second pulley 55 are rotatably installed on the top sheet 120 via the support bracket 71. The first pulley 54 and the second pulley 55 may be spaced apart from each other so as not to interfere with each other.

The first pulley 54 and the second pulley 55 are engaged on both sides of the belt 52, respectively. That is, the belt 52 extending downward from the top of the vertical bar 50 passes between the first pulley 54 and the second pulley 55 and extends downward to be fixed to the lower seat 110. Accordingly, one surface of the belt 52 may be engaged with the first pulley 54 and the opposite surface of the belt 52 may be engaged with the second pulley 55 .

The contact area between the belt 52 and the pulley can be maximally increased by allowing the belt 52 to engage while passing through the first pulley 54 and the second pulley 55 disposed vertically apart in an S shape. . Thus, slippage or malfunction between the belt 52 and the pulleys 54 and 55 can be prevented.

In this way, when the conversion unit 20 of this embodiment moves the top sheet 120 up and down with respect to the lower sheet 110, the upper sheet 120 according to the belt 52 installed on the lower sheet 110 ), the pulleys 54 and 55 are rotated while the pulleys 54 and 55 are installed. Therefore, the kinetic energy due to the vertical vibration of the top sheet 120 is converted into rotational force of the pulleys 54 and 55.

Output shafts 58 and 59 are installed on the first pulley 54 and the second pulley 55, respectively. The output shafts 58 and 59 are installed at the center of rotation of each pulley 54 and 55 and extend outward, and apply rotational force to the outside when the pulleys 54 and 55 rotate.

For convenience of description below, the two output shafts 58 and 59 are referred to as a first output shaft 54 and a second output shaft 55, respectively, and the output shafts 58 and 59 are referred to as the first output shaft 54. and the second output shaft 55 may all be referred to.

One-way clutches 56 and 57 are installed between the output shafts 58 and 59 and the pulleys 54 and 55. The one-way clutches 56 and 57 restrict the direction of rotation of the output shafts 58 and 59 between the pulleys 54 and 55 and the output shafts 58 and 59 to rotate the output shafts 58 and 59 in only one direction.

Accordingly, the one-way clutches 56 and 57 restrict rotation in only one direction between the pulleys 54 and 55 and the output shafts 58 and 59 to rotate the output shafts 58 and 59 in only one direction.

For example, in the case of a structure in which the one-way clutches 56 and 57 have a counterclockwise restraining force, when the pulleys 54 and 55 rotate counterclockwise, the output shafts 58 and 59 are restrained and counterclockwise as well. can be rotated to Conversely, when the pulleys 54 and 55 rotate clockwise, restraints on the output shafts 58 and 59 are released and transmission of rotational force is blocked, so that the output shafts 58 and 59 do not rotate like the pulleys 54 and 55. .

The one-way clutches 56 and 57 can be applied to all structural surfaces capable of transmitting rotational force in one direction, and can be modified in various ways.

In this embodiment, as described above, in the case of a structure in which a pair of pulleys 54 and 55 are engaged on both sides of the belt 52 and rotated in opposite directions when the top sheet 120 moves up and down, each pulley 54, The rotational restraining directions of the one-way clutches 56 and 57 installed in 55 may have the same structure. That is, both the one-way clutch 56 installed on the first pulley 54 and the one-way clutch 57 installed on the second pulley 55 transmit power to the output shafts 58 and 59 while being constrained when rotating in the same counterclockwise direction. It may be a structure that

Accordingly, when the top sheet 120 moves up and down, the first pulley 54 and the second pulley 55 are rotated in opposite directions to each other, and only one of the two pulleys is rotated counterclockwise so that only one output shaft generates rotational force. this can be transmitted. Accordingly, the two output shafts 58 and 59 may be alternately rotated in one direction according to the elevation of the top sheet 120 .

In this way, it is possible to transmit power to the output shafts 58 and 59 moving in any direction while matching the rotational directions of the output shafts 58 and 59 when the top sheet 120 ascends or descends. The rotational force applied to either of the output shafts 58 and 59 may be transmitted by the rotational gear and the intermediate gear 62 and output as continuous rotational force. This will be explained in detail later.

Unlike this structure, in the case of a structure in which a pair of pulleys 54 and 55 are engaged with the same surface of the belt 52 and rotated in the same direction when the top sheet 120 moves up and down, each pulley 54 and 55 The installed one-way clutches 56 and 57 may have structures that limit rotation in opposite directions.

That is, the one-way clutch 56 installed on the first pulley 54 has a structure that transmits power to the output shaft 58 while being constrained when rotating in the counterclockwise direction, and the one-way clutch 57 installed on the second pulley 55 It may be a structure that transmits power to the output shaft 59 while being constrained when rotating in the clockwise direction.

Accordingly, when the top sheet 120 moves up and down, the first pulley 54 and the second pulley 55 rotate in the same direction, and either one of the one-way clutches 56 and 57 installed on the two pulleys 54 and 55 Only one side is constrained so that rotational force can be transmitted only to one output shaft (58, 59). Accordingly, the two output shafts 58 and 59 may be alternately rotated in one direction according to the elevation of the top sheet 120 . In this way, the rotational force can be transmitted to any one of the two output shafts 58 and 59 when the upper sheet 120 is raised or lowered, and at this time, the rotational directions of the output shafts 58 and 59 are the same.

In the following description of this embodiment, a structure in which two pulleys 54 and 55 are engaged with both sides of the belt 52 and rotated in opposite directions will be described as an example.

The two output shafts 58 and 59 alternately rotated by the one-way clutches 56 and 57 are connected via the rotation gears 60 and 61 and the intermediate gear 62 to be continuously rotated. Thus, both the output shafts 58 and 59 can be continuously rotated in one direction when the top sheet 120 is raised or lowered.

For convenience of description below, the two rotation gears 60 and 61 are referred to as a first rotation gear 60 and a second rotation gear 61, respectively, and the rotation gears 60 and 61 refer to the first rotation gear 60 and 61 respectively. It may refer to both the rotation gear 60 and the second rotation gear 61.

The rotation gears 60 and 61 installed on the respective output shafts 58 and 59 of the first pulley 54 and the second pulley 55 are connected by an intermediate gear 62. The intermediate gear 62 matches the rotational direction of the two rotational gears 60 and 61 together with transmitting the rotational force of one rotational gear to the other rotational gear. Through the intermediate gear 62, the two rotary gears 60 and 61 may be rotated in the same direction.

4 shows a structure in which a pair of rotating gears 60 and 61 are connected via a rotating belt 64 as another embodiment.

Except for the rotating belt 64 in FIG. 4 , other components are the same as those described above, so the same reference numerals will be given below and detailed descriptions thereof will be omitted.

The rotating belt 64 has a structure in which a gear meshing with the rotating gears 60 and 61 is formed along the inner circumferential surface, and is fastened between the two rotating gears 60 and 61. The rotational belt 64 coincides with the rotational direction of the two rotational gears 60 and 61 as well as transmitting the rotational force of one rotational gear to the other rotational gear. Accordingly, when the rotational gears 60 and 61 are rotated, the rotational belt 64 rotates and transmits rotational force to the rotational gear on the other side, thereby rotating the rotational gear on the other side. The two rotating gears 60 and 61 are connected by a rotating belt 64 so that they can be rotated in the same direction. Accordingly, the two output shafts 58 and 59 alternately rotated by the one-way clutches 56 and 57 are connected to the rotation gears 60 and 61 and the rotation belt 64 so as to be continuously rotated. Thus, both the output shafts 58 and 59 can be continuously rotated in one direction when the top sheet 120 is raised or lowered.

The generator 30 may be installed connected to one output shaft 58 of the two output shafts 58 and 59 . The generator 30 converts the rotational force of the output shaft 58 into electrical energy. Various methods such as the generator 30, for example, the DC generator 30, the synchronous generator 30, the induction generator 30, etc. may be applied.

The generator 30 is driven according to the rotational motion of the output shaft 58 to produce electric power.

In addition, an equalization unit 40 is provided between the output shaft 58 and the generator 30 to uniformly stabilize the rotational force of the output shaft 58 and transmit it to the generator 30 .

The equalization unit 40 of this embodiment may include a drive shaft 42 connected to the generator 30 and a spirally wound mainspring 44 installed between the drive shaft 42 and the output shaft 58.

The mainspring 44 may have a structure in which a thin strip-shaped metal plate is rolled into a spiral shape. The inner end of the spirally wound mainspring 44 may be connected to the output shaft 58, and the outer end may be connected to the drive shaft 42. As shown in FIG. 3 , the drive shaft 42 is disposed on the same axis as the output shaft 58, and the front end of the drive shaft 42 is eccentric from the center and can be connected to the outer front end of the main spring 44. As the output shaft 58 rotates, the mainspring 44 is wound and stores elastic energy. And, while the main spring 44 elastically returns to its original state, the drive shaft 42 is rotated by the force.

In this way, by providing the equalization unit 40 for accumulating force between the output shaft 58 and the drive shaft 42 of the generator 30, the uneven rotational force applied from the output shaft 58 is reduced by the equalization unit 40. It can be stored elastically and output uniformly. Therefore, a uniform rotational force can be continuously applied to the driving shaft 42 in response to non-uniform vibration of the absorber 100 .

Accordingly, power efficiency can be increased by securing a stable rotational speed regardless of changes in the vertical vibration speed of the absorber 100, and power can be more stably produced through a uniform rotational speed.

Hereinafter, with reference to FIG. 3, the operation of the generator of this embodiment will be described.

In FIG. 3, the one-way clutches 56 and 57 installed on the first pulley 54 and the second pulley 55 are constrained when the pulleys 54 and 55 rotate counterclockwise, so that the output shafts 58 and 59 are the same. ) may be a structure that rotates. Hereinafter, the clockwise direction is referred to as CW, and the counterclockwise direction is referred to as CCW. Also, for convenience of explanation, the output shaft and the rotation gear connected to the first pulley 54 are referred to as the first output shaft 58 and the first rotation gear 60, and the output shaft and rotation gear connected to the second pulley 55 The rotating gear is referred to as the second output shaft 59 and the second rotating gear 61.

When the top sheet 120 moves up and down, the pulleys 54 and 55 installed on the top sheet 120 are rotated while moving along the belt 52. When the top sheet 120 is raised and lowered, the first pulley 54 is rotated in a counterclockwise direction (CCW), and the second pulley 55 is rotated in a clockwise direction (CW).

As the first pulley 54 rotates counterclockwise (CCW), the first output shaft 58 and the first pulley 54 are restrained by the one-way clutches 56 and 57 installed on the first pulley 54. , the first output shaft 58 is rotated counterclockwise (CCW). As the second pulley 55 rotates clockwise (CW), the restraint between the one-way clutches 56 and 57 installed in the second pulley 55 and the second output shaft 59 is released, and the second output shaft 59 is not rotated.

As the first output shaft 58 installed on the first pulley 54 rotates counterclockwise (CCW), rotational force is applied to the generator 30 connected to the first output shaft 58 to generate electricity.

When the first output shaft 58 rotates counterclockwise (CCW), the first rotation gear 60 installed on the first output shaft 58 also rotates counterclockwise (CCW) through the intermediate gear 62. The rotational force is transmitted to the second rotation gear 61 installed on the second output shaft 59. Accordingly, the second rotation gear 61 and the second output shaft 59 to which the second rotation gear 61 is installed are rotated counterclockwise (CCW).

As mentioned above, the second output shaft 59 is a one-way clutch when the second pulley 55 rotates counterclockwise (CCW), that is, when the second output shaft 59 rotates clockwise (CW) ( 56,57). Accordingly, the second output shaft 59 on which the second rotation gear 61 is installed freely rotates counterclockwise (CCW).

In this way, when the top sheet 120 is lowered, the first output shaft 58 is rotated in a counterclockwise direction (CCW) so that the generator 30 is driven to generate power.

When the lifted top sheet 120 descends, the pulleys 54 and 55 installed on the top sheet 120 are rotated while moving along the belt 52. When the top sheet 120 is lowered, the first pulley 54 is rotated clockwise (CW), and the second pulley 55 is rotated counterclockwise (CCW).

As the second pulley 55 rotates counterclockwise (CCW), the second output shaft 59 and the second pulley 55 are restrained by the one-way clutches 56 and 57 installed on the second pulley 55, , the second output shaft 59 is rotated counterclockwise (CCW).

As the first pulley 54 rotates clockwise (CW), the restraint between the one-way clutches 56 and 57 installed on the first pulley 54 and the first output shaft 58 is released, and the first output shaft 58 is not rotated.

As the second output shaft 59 installed on the second pulley 55 rotates counterclockwise (CCW), the second rotation gear 61 installed on the second output shaft 59 also rotates counterclockwise (CCW). . The rotational force of the second rotation gear 61 is transmitted to the first rotation gear 60 installed on the first output shaft 58 through the intermediate gear 62 . Accordingly, the first rotation gear 60 and the first output shaft 58 to which the first rotation gear 60 is installed are rotated counterclockwise (CCW).

Thus, rotational force is applied to the generator 30 connected to the first output shaft 58 to generate power.

As mentioned, the first output shaft 58 is a one-way clutch when the first pulley 54 rotates counterclockwise (CCW), that is, when the first output shaft 58 rotates clockwise (CW) ( 56,57).

Accordingly, the first output shaft 58 on which the first rotation gear 60 is installed is freely rotatable in a counterclockwise direction (CCW), and the first rotation gear 60, the intermediate gear 62 and the second rotation gear ( 61) is rotated counterclockwise (CCW) by the rotational force transmitted through. Therefore, when the top sheet 120 is lowered, the second output shaft 59 is rotated, and the first output shaft 58 receiving the rotational force therefrom is rotated in the counterclockwise direction (CCW) while the generator 30 is driven. .

In this way, the top sheet 120 according to the vibration of the absorber can be applied to the generator 30 by converting the upper and lower kinetic energy into the rotational energy of the output shafts (58, 59). In addition, by continuously rotating the first output shaft 58 in the same direction both when the top sheet 120 is raised or lowered, the generator 30 can be operated. Therefore, regardless of the direction of vibration, it is possible to stably produce power by converting vibration energy into rotational force in one direction.

In addition, the generator 10 of the present embodiment further includes a rotary blade 80 installed on the drive shaft 42 of the generator 30 and rotated by wind energy generated during vehicle driving to apply rotational force to the drive shaft 42. can do.

The rotary blade 80 is connected to the driving shaft 42 and may be disposed where the wind hits, for example, when driving a vehicle. As the rotary blade 80 rotates, the driving shaft 42 is rotated so that the amount of power generation can be further increased.

Meanwhile, FIG. 5 shows various modifications of the conversion unit 20 .

Figure 5 (a) shows the structure provided with this device between the top sheet 120 and the bottom sheet 110.

In this embodiment, the vertical bar 50 is located between the top sheet 120 and the bottom sheet 110, and the pulleys 54 and 55 are disposed under the top sheet 120 to be connected to the belt 52. can

Accordingly, the device can be placed inside the top sheet 120 and the bottom sheet 110, so that the overall size of the device can be further miniaturized.

Figure 5 (b) shows a structure in which the vertical bar 50 extends upward through the top sheet 120. The belt 52 also passes through the top sheet 120 and is connected between the vertical bar 50 and the bottom sheet 110. In this embodiment, the pulleys 54 and 55 are disposed on the upper sheet 120 and may be connected to the belt 52.

Accordingly, the converter can be structurally easily mounted on the absorber, and the manufacturing and maintenance of the entire device is easy.

Figure 5 (c) shows a structure in which the vertical bar 50 is disposed on the outer side of the top sheet 120 and extends upward. The belt 52 may be connected and installed between the vertical bar 50 and the lower sheet 110 through the upper sheet 120 . Pulleys 54 and 55 are disposed on the top sheet 120 and connected to the belt 52.

In the case of this embodiment, it is structurally easy to mount the converter to the absorber, and the overall device is easy to manufacture and maintain.

6 shows another embodiment of the conversion unit.

Hereinafter, in the description of the conversion unit 20 of this embodiment, the same reference numerals will be used for components already described as the same as those of other embodiments, and detailed descriptions thereof will be omitted.

As shown in FIG. 6, the conversion unit 20 of this embodiment is installed on the lower sheet 110 and is installed between the vertically extending vertical bar 50, the vertical bar 59 and the lower sheet 110 A belt 52, a pulley 90 rotatably installed on the top sheet 120 and engaged with the belt 52 to rotate when the top sheet 120 moves up and down, and a rotating shaft 91 installed on the pulley 90 and rotated , the drive gear 92 installed on the rotation shaft 91, the one-way clutch 93 installed between the rotation shaft 91 and the drive gear 92 to limit the rotational direction of the drive gear 92, to the rotation shaft 91 A spaced apart output shaft 94, a driven gear 95 installed on the output shaft 94 and meshed with the drive gear 92, a rotation gear 61 installed on the rotation shaft 94, the rotation shaft 94 and the rotation gear (61) installed between the one-way clutch 96 for limiting the direction of rotation of the rotation gear 61, the rotation gear 60 installed on the output shaft 94, two rotations installed on the rotation shaft 91 and the output shaft 94 It may include an intermediate gear 62 that connects between the gears 61 and 60 to transmit power.

In this embodiment, the two one-way clutches 92 and 96 installed on the rotating shaft 91 may have a structure that restricts rotation in opposite directions. Accordingly, the drive gear 92 or the rotary gear 61 is rotated according to the direction of rotation of the rotation shaft 91 so that power can be transmitted to the output shaft 94 . Therefore, both when the top sheet 120 rises or falls, the output shaft 94 can be continuously rotated in one direction.

The conversion unit 20 of this embodiment may further include an idle pulley 97 that is engaged with the belt 52 and rotates freely. The idle pulley 97 is rotatably installed on the upper seat 120 and has a structure that is spaced apart from the pulley 90 and engaged with the opposite side of the belt 92 in contact with the pulley.

By the idle pulley 97, the belt 92 wraps around the pulley 90 and passes, thereby increasing adhesion. That is, as shown in FIG. 6, as the belt 52 is engaged while passing the idle pulley 97 and the pulley 90 disposed vertically apart in an S-shape, contact between the belt 52 and the pulley area can be maximized. Thus, slippage or malfunction between the belt 52 and the pulley 90 can be prevented.

In another embodiment, the two rotating gears 60 and 61 may be connected via a rotating belt (see 64 in FIG. 4 ).

Hereinafter, an operation according to the embodiment of FIG. 6 will be described.

In this embodiment, the one-way clutch 93 connected to the drive gear 92 has a structure that constrains and rotates the drive gear 92 when the rotation shaft 91 rotates clockwise (CW), and the rotation gear 61 Conversely, the one-way clutch 96 connected to may have a structure that restricts and rotates the rotational gear 61 when the rotational shaft 91 rotates in a counterclockwise direction (CCW).

As the top sheet 120 descends, the pulley 90 descends along the belt 52 and rotates. When the top sheet 120 is lowered, the pulley 90 is rotated in a counterclockwise direction (CCW), and the rotation shaft 91 connected to the pulley 90 is rotated in a counterclockwise direction (CCW).

As the rotary shaft 91 rotates counterclockwise (CCW), the restraint between the rotary shaft 91 and the one-way clutch 93 is released, and the drive gear 92 does not rotate.

In addition, as the rotation shaft 91 rotates, the rotation shaft 91 and the rotation gear 61 are constrained by the one-way clutch 96 installed at the front end, and the rotation gear 61 rotates counterclockwise (CCW). The rotational force of the rotational gear 61 is transmitted to the rotational gear 60 installed on the output shaft 94 through the intermediate gear 62 . Accordingly, the output shaft 94 is rotated counterclockwise (CCW).

In this way, when the top sheet 120 is lowered, the output shaft 94 is rotated in a counterclockwise direction (CCW) so that the generator 30 is driven to generate power.

Conversely, when the lifted top sheet 120 is lifted, the pulley 90 installed on the top sheet 120 is rotated while moving upward along the belt 52. When the top sheet 120 ascends and descends, the pulley 90 is rotated clockwise (CW), and the rotation shaft 91 connected to the pulley 90 is rotated clockwise (CW).

As the rotating shaft 91 rotates clockwise (CW), the rotating shaft 91 and the driving gear 92 are constrained by the one-way clutch 93, and the driving gear 92 rotates clockwise.

In addition, as the rotating shaft 91 rotates, the one-way clutch 96 installed at the front end of the rotating gear 61 is released from restraint, and the rotating gear 61 does not rotate.

As the drive gear 92 rotates clockwise (CW), the driven gear 95 meshed with the drive gear 92 rotates counterclockwise (CCW). Accordingly, the output shaft 94 on which the driven gear 95 is installed is rotated counterclockwise (CCW).

Therefore, when the top sheet 120 is lowered, the output shaft 94 is rotated in a counterclockwise direction (CCW) so that the generator 30 is driven to generate power.

In this way, the generator 30 can be operated by continuously rotating the output shaft 94 in the same direction when the top sheet 120 is raised or lowered. Therefore, regardless of the direction of vibration, it is possible to stably produce power by converting vibration energy into rotational force in one direction.

7 shows another embodiment of the conversion unit.

Hereinafter, other configurations of the conversion unit of this embodiment are the same as those of the above-described embodiment except for the structure in which the pulley is configured as a pinion and transmits power. Therefore, the same reference numerals are used for the same configurations, and detailed descriptions thereof are omitted.

As shown in 7, the conversion unit 20 of this embodiment includes a vertical bar 50 installed on the lower seat 110 and extending vertically, and a rack gear 82 is installed on the vertical bar 50. And, the pair of pulleys provided on the top sheet 120 are made of pinions 65 and 66, and the first pinion 65 of the pair of pinions 65 and 66 is the rack gear of the vertical bar 50 ( 82), the second pinion 66 may have a structure that is spaced apart from the rack gear 82 and engaged with the first pinion 65.

Accordingly, when the top sheet 120 is moved up and down, the first pinion 65 engaged with the rack gear 82 of the vertical bar 50 rotates, and the second pinion 66 engaged with the first pinion 65. ) is rotated in the opposite direction of the first pinion 65. Therefore, when the upper sheet 120 is raised and lowered, it is possible to rotate the two pinions 65 and 66 in opposite directions to each other.

As the two pinions 65 and 66 rotate in opposite directions to each other, as mentioned above, when the top sheet 120 moves up and down, the rotational force is transmitted through the first pinion 65 or the second pinion 66 and finally Electric power may be produced by continuously rotating and driving the generator 30 in one direction.

In addition, although not shown, the structure using the pinion may be applied to a structure having one pulley as in the embodiment of FIG. 6 . In the case of this structure, a single pinion may be provided instead of a pulley and engaged with the rack gear. As the top sheet moves up and down, the pinion engaged with the rack gear is rotated, and the rotational shaft installed on the pinion rotates clockwise or counterclockwise, finally transmitting power to the output shaft to drive the generator.

Although exemplary embodiments of the present invention have been shown and described as described above, various modifications and other embodiments may be made by those skilled in the art. All of these modifications and other embodiments are to be considered and included in the appended claims, without departing from the true spirit and scope of the present invention.

10: generator 12: housing
20: conversion unit 30: generator
40: equalization unit 42: drive shaft
44: spring spring 50: vertical bar
51: circular bracket 52: belt
53: guide holder 54,55,90: pulley
56,57,93,96: one-way clutch 58,59,94: output shaft
60,61: rotation gear 62: intermediate gear
64: rotating belt 65: first pinion
66: second pinion 70: tension spring
71: support bracket 80: rotary blade
82: rack gear 91: rotational shaft
92: drive gear 95: driven gear
97: idle pulley

Claims (8)

A power generation device installed in an absorber including a lower sheet, an upper sheet that moves up and down relative to the lower sheet, and an elastic part elastically installed between the lower sheet and the upper sheet to apply an elastic restoring force to generate power from vibration energy,
The generator is provided between the upper sheet and the lower sheet and converts the up and down motion of the top sheet into a continuous rotational force in one direction and outputs it to the outside, and is connected to the output of the conversion unit to convert the rotational force applied from the conversion unit. An energy harvest generator using unused energy of a means of transportation including a generator that produces power. According to claim 1,
Energy harvest generator using unused energy of the moving means further comprising a equalization unit installed at the output side of the conversion unit to uniformly output rotational force to the generator. According to claim 1,
An energy harvest generator using unused energy of a means of transportation, further comprising rotary blades installed on the drive shaft of the generator and rotated by wind energy generated during vehicle driving to apply rotational force to the drive shaft. According to any one of claims 1 to 3,
The conversion unit is installed on the lower sheet and vertically extending a vertical bar, a belt installed between the vertical bar and the lower sheet, and rotatably installed on the upper sheet and spaced apart from each other to be engaged with the belt, respectively, so as to engage the top and bottom of the upper sheet. A pair of pulleys rotated during movement, an output shaft installed on each pulley and rotated, a one-way clutch installed between each pulley and the output shaft to limit the rotational direction of the output shaft, a rotation gear installed on each output shaft of each pulley, An energy harvest generator using unused energy of a means of transportation including a connecting member for transmitting power between two rotary gears by connecting between the rotary gears. According to any one of claims 1 to 3,
The conversion unit is installed on the lower sheet and extends vertically, a first pulley rotatably installed on the upper sheet and in contact with the vertical bar and a second pulley rotatably installed in the upper sheet and in contact with the first pulley A pair of pulleys that rotate in opposite directions when the top sheet is moved up and down, including a pulley, an output shaft installed on each pair of pulleys and rotated, and installed between each pulley and the output shaft to limit the rotation direction of the output shaft An energy harvest generator using unused energy of a moving means including a one-way clutch, a rotation gear installed on the output shaft of each pulley, and a connecting member connecting the rotation gears to transmit power between the two rotation gears. According to claim 5,
The vertical bar has a rack gear installed, and the unwinding pinion consists of an energy harvesting device using unused energy of a moving means of a structure engaged with the rack gear. According to any one of claims 1 to 3,
The conversion unit includes a vertical bar installed on the lower sheet and extending vertically, a belt installed between the vertical bar and the lower sheet, and a pulley rotatably installed on the upper sheet and engaged with the belt to rotate when the upper sheet moves up and down. , a rotation shaft installed on the pulley and rotated, a drive gear installed on the rotation shaft, a one-way clutch installed between the rotation shaft and the drive gear to limit the rotational direction of the drive gear, an output shaft disposed spaced apart from the rotation shaft, and an output shaft A driven gear installed and engaged with the drive gear, a rotation gear installed on the rotation shaft, a one-way clutch installed between the rotation shaft and the rotation gear to limit the rotation direction of the rotation gear, a rotation gear installed on the output shaft, and the rotation shaft An energy harvest generator using unused energy of a means of transportation including a connecting member for transmitting power between the two rotary gears by connecting the two rotary gears installed on the output shaft. According to claim 7,
The vertical bar has a rack gear installed, and the unwinding pinion consists of an energy harvesting device using unused energy of a moving means of a structure engaged with the rack gear.

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