KR101334825B1 - Weight conversion apparatus and road surface generating system using the same - Google Patents

Abstract

A weight conversion apparatus converting potential energy due to the weight of a vehicle into other energy includes a weigh conversion part, which is installed on a road surface and includes: a first plate member; a second plate member; a third plate member; a first link connecting the first plate member to the road surface to be able to rotate; a second link connecting the first plate member and the second plate member to be able to mutually rotate; a third link connecting the second plate member and the third plate member to be able to mutually rotate; and a fourth link connecting the third plate member to the road surface to be able to rotate, wherein the second link rises and is placed above the road surface in an initial condition in which the wheel of the vehicle does not reach the weigh conversion part yet. [Reference numerals] (40) Air storage tank;(60) Electrical installation;(70) Compressed air application equipment

Description

Weight conversion apparatus and road surface generating system using the same

The present invention relates to a load converting apparatus and a road generating system using the same, and more particularly, to a load converting apparatus capable of generating compressed air using a load of a vehicle and a road generating system using the same.

Recently, researches on energy harvesting techniques for recovering energy from kinetic energy and vibration generated by the operation of mechanical systems and recovering waste heat having a relatively high energy density among fossil fuels have been actively conducted. It's going on. Among them, road generation systems that can generate electricity by using the load or kinetic energy of the vehicle when the vehicle is traveling on the road have been proposed in various forms.

As the most known method of such a road generation system, a method using a piezoelectric element or a method of converting linear motion into kinetic energy of a flywheel by using a one-way clutch and connecting it to a generator has been proposed.

However, securing mechanical durability and low production cost to accommodate temperature changes of four seasons and vehicle traffic shocks should be an important factor in the installation of road power generation systems, and more efficient mechanisms are required to satisfy these durability and power costs. do.

According to one or more exemplary embodiments of the present inventive concept, there is provided a load conversion device capable of generating compressed air using a load of a vehicle and a road surface power generation system using the same.

According to one or more exemplary embodiments of the present inventive concept, there is provided a load converting apparatus of a mechanical structure which improves durability and has a low power unit cost, and a road power generation system using the same.

According to an exemplary embodiment of the present invention, in the load conversion device for converting the potential energy of the vehicle load to other energy, the load conversion device includes a load conversion unit installed on the road surface, the load conversion unit First to third plate-like member; A first link rotatably connecting the first plate member to the ground of the roadway; A second link pivotally connecting the first plate member and the second plate member to each other; A third link pivotally connecting the second plate member and the third plate member to each other; And a fourth link rotatably connecting the third plate member to the ground of the road, wherein the second link rises above the road surface in an initial state before the wheel of the vehicle reaches the load converting portion. , A load converting device may be provided.

According to an exemplary embodiment of the present inventive concept, a road generation system for converting potential energy due to a load of a vehicle into another energy, comprising: the load conversion device; An air storage tank for storing compressed air; A road surface power generation system may be provided, including; a pipe for guiding air inside each cylinder to the air storage tank.

According to one or more exemplary embodiments of the inventive concept, there is an effect of generating compressed air using the load of the vehicle and generating electrical energy therefrom.

According to one or more exemplary embodiments of the present inventive concept, it is advantageous to provide an efficient mechanical load converting device by improving the durability and lowering the power cost by using a load converting part consisting of only a plurality of plate members and a link connecting the same. have.

1 is a view schematically illustrating a load converting apparatus and a road power generation system using the same according to an exemplary embodiment of the present invention;
2 is a perspective view of a load converting unit according to an embodiment;
3 is a bottom perspective view of a load converting unit according to an embodiment;
4 is a view for explaining the movement of the load converter according to the movement of the vehicle wheel;
5A and 5B are cross-sectional views schematically illustrating a load converting apparatus according to an embodiment;
6 is a view for explaining the movement of the load converting part of the length according to the first embodiment according to the movement of the vehicle; and
7 is a view for explaining the movement of the load converting part of the length according to the second embodiment as the vehicle moves.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more readily apparent from the following description of preferred embodiments with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

In this specification, when an element is referred to as being on another element, it means that it can be formed directly on the other element, or a third element may be placed therebetween.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. As used in the specification, 'comprises' and / or 'comprising' does not exclude the presence or addition of one or more other components in addition to the components mentioned.

The expression 'an element is connected to another element' in this specification means not only a direct connection between the elements but also an indirect connection via another third element.

Hereinafter, the present invention will be described in detail with reference to the drawings. In describing the following specific embodiments, various specific details are set forth in order to explain and understand the invention in more detail. However, those skilled in the art can understand that the present invention can be used without these various specific details. In some instances, it should be noted that portions of the invention that are well known in the description of the invention and are not significantly related to the invention do not describe confusion in describing the invention.

1 is a view schematically illustrating a load converting apparatus and a road surface power generation system using the same according to an exemplary embodiment of the inventive concept.

Referring to FIG. 1, a road power generation system according to an embodiment may include a load converting apparatus 100, an air storage tank 40, and a generator 50.

The load converting apparatus 100 includes a load converting unit 10 and a cylinder 30. The load converting unit 10 is installed on the road surface and converts the potential energy due to the load of the vehicle 80 into other energy as the vehicle 80 passes over the load converting unit 10. In the illustrated embodiment, the load converting unit 10 may operate in conjunction with the cylinder 30, and whenever the vehicle 80 passes over the load converting unit 10, the load of the cylinder 30 is changed by the load of the vehicle. The piston can reciprocate up and down to produce compressed air energy.

Although one cylinder 30 is coupled to one load converter 10 in the illustrated embodiment, this is for simplicity of the drawings and according to an embodiment, one or more load converters 10 may be used. Cylinder 30 may be connected.

In addition, although only one load converter 100 is shown in the illustrated embodiment, a plurality of load converters 100 may be continuously installed on the road surface according to the embodiment. In this case, the plurality of load conversion devices 100 may be installed adjacent to each other or spaced apart from each other in the vehicle traveling direction.

The air storage tank 40 stores the compressed air energy generated by the load converting apparatus 100. The compressed air energy stored in the air storage tank 40 can be used in various ways. As in the illustrated embodiment, the generator 50 may be connected to the air storage tank 40, and the generator 50 may generate electrical energy from compressed air energy using an air turbine. The electrical energy generated by the generator 50 can be used to operate various electrical installations 60. The electrical installation 60 may be, for example, a facility that uses electricity, such as a roadside LED lighting installation, a road surface frost preventing device, a power source of a wireless sensor network (WSN), and the like. In addition, the compressed air energy of the air storage tank 40 may be connected to the compressed air utilization facility 70 that uses the compressed air directly.

2 and 3, a load converting unit 10 according to an embodiment will be described.

2 is a perspective view of a load converter according to an embodiment, and FIG. 3 is a bottom perspective view of the load converter according to an embodiment. 2 and 3, the load converting unit 10 may include first to third plate members 11, 12, and 13.

Each of the plate members 11, 12, and 13 is a plate-shaped member having a plane substantially rectangular in shape and having an upper surface and a lower surface flat, and all of the first to third plate members may have the same size. However, depending on the embodiment, the shape of the plane may not be rectangular, and the upper surface or the lower surface may not be flat, and a curved surface or a curved portion may be formed.

Each plate member 11, 12, 13 is rotatably connected by a neighboring plate member and the links 21, 22, 23, 24. Specifically, the first link 21 makes the first plate member 11 rotatable while connecting the first plate member 11 to the ground of the road. The second link 22 pivotally connects the first plate member 11 and the second plate member 12, and the third link 23 is the second plate member 12 and the third plate member 13. ) Is connected rotatably. The fourth link 24 allows the third plate member 13 to be rotatable while connecting the third plate member 13 to the ground of the road.

As such, the size of the load converting unit 10 including the first to third plate members 11, 12, and 13 may vary according to embodiments. In general, assuming that the wheelbase (distance between the front wheel and the rear wheel) of the passenger car is 2.4m to 2.8m, so that the average length is 2.5m, in one embodiment, the total length L of the load converter 10 is smaller than this average wheelbase. It may have, for example, the length (L) may be 2m. In this case, the length of each of the first to third plate members 11, 12, 13 will be approximately 0.67m.

In another alternative embodiment, the length of each of the plate members 11, 12, 13 may have a value larger than the average wheelbase (2.5m) of the car, for example the overall length of the load converting section 10 ( L) is 8 m and thus the length of each plate member 11, 12, 13 may be approximately 2.67 m.

In general, assuming that the width of one lane of the road is approximately 3 to 3.5 m, an average of 3.2 m, the width W of the load converting unit 10 may be set to approximately 3.2 m.

However, the length L and the width W of the load converter 10 described above can be changed as much as the embodiment or the road conditions, and the present invention is limited to a load converter having any particular numerical value or shape. Of course not.

Now, the motions of the first to third plate members 11, 12, and 13 according to the movement of the vehicle will be described in detail.

4 is a view for explaining the movement of the load converter according to the movement of the wheel, the vehicle wheel 81 is first to first when the vehicle passes over the load converter 10 installed on the road surface of the vehicle 3 Shows the movement of each plate member as it passes over the plate members 11, 12, 13 in order.

Referring to FIG. 4, the load converting section 10 is composed of plate members 11, 12, 13 having the structure described with reference to FIGS. 2 and 3, for example, and is installed on the road surface of the road. The first to third plate members 11, 12 and 13 are connected to each other by the second and third links 22 and 23, and one side of the first plate member 11 is connected to the first link 21 by the first link 21. It is rotatably fixed to the road surface of the road, and one side of the third plate-shaped member 13 is rotatably fixed to the road surface of the road by the fourth link 24.

At a time T1, before the wheel 81 has yet reached the load converter 10, the load converter 10 is in an initial state with the second link 22 above the road surface in accordance with a preferred embodiment of the present invention. Slightly raised That is, the first and second plate members 11 and 12 form an inclined surface while being raised above the road surface.

At this time, the "initial state" of the load converter is a state before the vehicle reaches the load converter 10. That is, it means a state when the wheel 81 of the vehicle is located on the left side of the first plate member 11 as in the time T1 of FIG.

Thereafter, at time T2 of FIG. 4, as the vehicle moves, the wheel 81 passes over the first plate member 11 of the load converting section 10, so that the wheel is first plate member 11. When is pressed, the first plate member 11 is pushed down by the load of the vehicle, and the second link 22 is lowered and the second plate member 12 and the third plate member are centered on the third link 23. (13) rises.

Thereafter, at time T3 of FIG. 4, the third link 23 is also pressed down by the load of the wheel 81 while the wheel 81 passes the second plate-like member 12. 23 begins to descend and at the same time the second link 22 begins to ascend upward.

And at time T4, when the wheel 81 passes over the third plate member 13, the third plate member 13 is in a horizontal position by the load of the wheel, and centers the second link 22. As a result, the first plate member 11 and the second plate member 12 are positioned to rise. That is, at this time T4, the load converting section 10 has the same appearance as the initial state at the time T1.

Thereafter, the wheel 81 completely exits the load converting section 10 at time T5, and the load converting section 10 maintains the state of the initial state as it is.

Meanwhile, in the above-described movement of the first to third plate members 11, 12, 13, the maximum lift height of each of the plate members 11, 12, 13 (that is, the maximum rise of the link 22 or the link 23). Height) can be set to any value according to the embodiment. For example, in one embodiment this maximum elevation may be any value in the range of approximately 5 cm to 10 cm on the road surface.

Each plate member 11, 12, 13 is preferably approximately equal to the road surface (i.e., horizontally) or slightly higher than the road surface even when descending to the maximum. Therefore, even if each of the plate-shaped member (11, 12, 13) under the load of the vehicle may be required to prevent the structure from hitting below the road surface. For example, in the illustrated embodiment, links 21, 22, 23, and 24 for connecting the plate members 11, 12, and 13 are formed on the lower surface of each plate member 11, 12, and 13, This link connection structure can prevent sagging of the plate member. In addition, as shown in FIG. 5 to be described later, when the load converting portion 10 is installed on the road surface, the road surface immediately below the load converting portion 10 is the plate-shaped members 11, 12, 13 of the load converting portion 10. And / or to support the links 22 and 23, and this structure may prevent sagging of the plate member.

In addition, in the above-described movement of the first to third plate members 11, 12 and 13, the second and third links 22 and 23 are connected to the cylinder as described later with reference to FIG. Even if the members 11, 12, 13 are subjected to a sudden load of the vehicle, the members 11, 12, 13 can move slowly without suddenly descending or rising.

Now the connection structure of the load converter 10 and the cylinder 30 will be described with reference to FIG. FIG. 5 is a cross-sectional view schematically illustrating a load converting apparatus according to an exemplary embodiment. FIG. 5A shows an initial state of the load converting unit 10 and FIG. 5B shows a state in which a vehicle passes.

In the embodiment of Fig. 5, the load converting section 10 is provided on the road surface, and cylinders 31 and 33 are provided below it. Cylinders 31 and 33 are respectively connected to each of the second link 22 and the third link 23. The second link 22 is hingedly connected to the end of the piston 32 of the first cylinder 31 and the third link 23 is hingedly connected to the end of the piston 34 of the second cylinder 33.

In the embodiment shown in FIG. 5, the cylinders 31 and 33 are installed one by one on the second link 22 or the third link 23, but the number of cylinders connected to one link is not limited. For example, two cylinders may be installed in each of the second link 22 and the third link 23, and in this case, the load converter 10 may include a total of four cylinders. .

As can be seen in the figure, according to a preferred embodiment of the present invention, the load conversion unit 10 is located in the initial state the second link 22 is raised above the road surface, and thus the piston (1) of the first cylinder 31 32 may be at the maximum ascending position within the up and down reciprocation range of the piston, and the piston 34 of the second cylinder 33 may be at the maximum down position during the up and down reciprocation range of the piston.

In this configuration, for example, when the wheel presses the first plate member 11 as the vehicle passes over the first plate member 11 of the load converting portion 10, as in time T2 of FIG. As the first plate member 11 is pressed downward by the load of the vehicle, the second link 22 descends and the third link 23 rises. In other words, the state is shown in Fig. 5B. In this process, the piston 32 connected to the second link 22 descends and the air in the cylinder 31 flows through the pipe 35 to the air storage tank 40, and at the same time, the third link ( Piston 34 connected to 23 rises upward while external air enters cylinder 33.

Then, as at time T4 of FIG. 4, when the vehicle passes over the third plate-like member 13, the load converting portion 10 will return to the initial state of FIG. 5A again. At this time, in the process of returning to the state of FIG. 5B to FIG. 5A, the piston 32 connected to the second link 22 rises upward while external air flows into the cylinder 31 and the piston connected to the third link 23 ( 34 descends downward and sends air in cylinder 34 through pipe 35 to air storage tank 40.

As such, according to an embodiment of the inventive concept, the second and third links are sequentially formed as the vehicle sequentially presses the first to third plate members 11, 12, and 13 of the load converting unit 10. Pistons 32 and 34 connected to (22, 23) can send the air of the cylinder (31, 33) to the air storage tank (40) while repeating the up and down movement.

6 and 7, the motion of the load converter 10 according to the passage of the vehicle when the load converters 10 having different sizes are installed on the road surface will be described.

FIG. 6 is a view for explaining the movement of the load converter of the length according to the first embodiment according to the movement of the vehicle, wherein the total length L of the load converter 10 is smaller than the average wheelbase of the passenger car. Suppose we have In this case, the length of each of the first to third plate members 11, 12, 13 is approximately 0.67 m.

6, the vehicle 80 has not yet reached the load converting section 10 at time T1, and each plate member 11, 12, 13 of the load converting section 10 is as shown. Maintaining initial state.

Thereafter, the front wheel 81 of the vehicle 80 sequentially moves the first plate member 11, the second plate member 12, and the third plate member 13 from the time T2 to the time T4. 5, the pistons 32 and 34 connected to the second link 22 and the third link 23 respectively repeat the up and down movements of the cylinders 31 and 33 in this process. ) Is compressed and stored in the air storage tank (40).

Then, at time T5, the front wheel 81 of the vehicle 80 completely exits the load converter 10 and the rear wheel 82 of the vehicle reaches the load converter 10. From the point of view of the load converting section 10, this state is the same as that of the time T1. That is, the rear wheel 82 passes through the load converting unit 10 instead of the front wheel 81, but the first to third plate members 11, 12, and 13 have a time T2 to T4 by the load of the rear wheel 82. You will repeat Esau's movement.

As described above, in the embodiment in which the load converter 10 having a length L smaller than the wheelbase of the vehicle is installed, when the vehicle passes over the load converter 10, the load converter 10 is time T1. It can be seen that the cycle is repeated twice according to the time T5.

7 is a view for explaining the movement of the load converting part of the length according to the second embodiment according to the movement of the vehicle, the length of each of the first to third plate-shaped members (11, 12, 13) and Roughly similar or longer. As an example, it may be assumed that the total length L of the load converting unit 10 is approximately 8 m and the length of each of the plate members 11, 12, 13 is approximately 2.67 m.

Referring to FIG. 7, at time T1, the vehicle 80 has not yet reached the load converting unit 10, and each plate member 11, 12, 13 of the load converting unit 10 is as shown. Maintaining initial state.

Since the wheelbase of the vehicle 80 is approximately similar to the length of each of the plate members 11, 12, 13, the front wheel 81 and the rear wheel 82 of the vehicle 80 during the time T2 to the time T4. ) Sequentially pass through the first plate member 11, the second plate member 12, and the third plate member 13, and as described with reference to FIG. 5, the second link 22 in this process. And the pistons 32 and 34 respectively connected to the third link 23 send the air in the cylinders 31 and 33 to the air storage tank 40 by repeating the up and down movements.

Then, at time T5, one cycle is completed as the rear wheel 82 of the vehicle 80 completely exits the load converter 10.

Therefore, in the embodiment in which the load converter 10 having the length of each of the plate members 11, 12, and 13 has a length substantially similar to the wheelbase of the vehicle, when the vehicle passes over the load converter 10, The load converter 10 repeats the cycle according to the times T1 to T5 once. Therefore, if all other conditions are the same, it can be seen that the first embodiment of FIG. 6 can obtain twice the power generation efficiency as compared to the second embodiment of FIG.

Depending on the conditions of the road and the specific embodiment, the load converter 10 may have a length other than the lengths illustrated in the first and second embodiments, and the inventive concept is not limited to the feature length of the load converter. Will understand.

While the present invention has been described with reference to the particular embodiments and drawings, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. This is possible. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the equivalents of the claims, as well as the claims.

10: load converter 30: cylinder
40: air storage tank 50: generator
60: electric equipment 70: compressed air equipment
80: vehicle 100: load converter

Claims (18)

A load converting apparatus for converting potential energy due to a load of a vehicle into another energy, the load converting apparatus includes a load converting unit provided on a road surface,
The load conversion unit,
First to third plate-like members;
A first link rotatably connecting the first plate member to the ground of the roadway;
A second link pivotally connecting the first plate member and the second plate member to each other;
A third link pivotally connecting the second plate member and the third plate member to each other; And
And a fourth link for rotatably connecting the third plate member to the ground of the road.
And the second link is positioned above the road surface in an initial state before the wheel of the vehicle reaches the load converting portion. The method of claim 1,
When the wheel of the vehicle presses the first plate member as the vehicle passes over the load converting device, the first plate member is lowered, and at the same time, the second plate member and the third plate are formed around the third link. 3 The load converting device, characterized in that the plate-like member is raised. 3. The method of claim 2,
When the wheel of the vehicle passes over the third plate member, the third plate member is lowered and at the same time the first plate member and the second plate member are raised about the second link so that the initial state is reduced. Load converter characterized in that the. The method of claim 3, wherein
And a height when the respective plate-shaped members are lowered to the maximum is horizontal to the road surface or higher than the road surface. 5. The method of claim 4,
The road surface immediately below the load converter supports the respective plate-shaped members and / or the respective links to prevent the plate-shaped members from falling below the road surface. The load conversion device according to claim 3,
At least one first cylinder coupled to the second link; And
And at least one second cylinder connected to the third link. The method according to claim 6,
Two first cylinders are connected to the second link, and two second cylinders are connected to the third link. The method according to claim 6,
And the second link is hingedly connected to the end of the piston of the first cylinder and the third link is hinged to the end of the piston of the second cylinder. The method according to claim 6,
In the initial state, the piston of the first cylinder is located in the maximum ascending position within the vertical reciprocating range of the piston and the piston of the second cylinder is located in the maximum falling position within the vertical reciprocating range of the piston Load converter. The method of claim 9,
And a piston connected to the second and third links, respectively, as the vehicle passes through the first to third plate members in sequence to repeat the up and down movements. 11. The method of claim 10,
When the wheel of the vehicle presses the first plate member, the second link descends to compress the air in the first cylinder, and at the same time the third link rises to allow the outside air to flow into the second cylinder. A load converter, characterized in that. The method of claim 11,
When the wheel of the vehicle presses the third plate member, the second link rises and the outside air flows into the first cylinder, and at the same time the third link descends to compress the air in the second cylinder. A load converter, characterized in that. The method of claim 1,
The load conversion device has a length smaller than the wheelbase of the vehicle. The method of claim 1,
The length of each plate-shaped member of the said load conversion part has a value larger than the wheelbase of the said vehicle. In the road generation system for converting the potential energy of the vehicle load to other energy,
A load converter according to any one of claims 6 to 14;
An air storage tank for storing compressed air; And
And a pipe for guiding the air in each of the cylinders to the air storage tank. The method of claim 15,
A road generation system, comprising a plurality of the load conversion device. 17. The method of claim 16,
And said plurality of load converting devices are provided adjacent to each other or spaced at predetermined intervals along the vehicle traveling direction on the road surface. 17. The method of claim 16,
The road generation system further comprising a generator using compressed air stored in the air storage tank, wherein the generator generates electrical energy from the compressed air energy.

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