Not Applicable
Not Applicable.
1. NO COMPACT DISCS
2. The only text files submitted via the EFS-WEB are those that I have filed since the filing of the Provisional Patent Application mentioned under section (b) CROSS-REFERENCE TO RELATED APPLICATIONS, and the documents submitted with the present patent application.
Not Applicable.
Field of the Invention
The country is spending a lot of money on petroleum products to generate the power needed to support our life style. In addition and as a result, we are also generating large amounts of CO2, Carbon Dioxide, using this petroleum energy source, thus contributing further towards global warming, as speculated by a lot of scientists. There is an intensive drive to get off petroleum energy sources as much as possible and to start using other/alternative sources of energy, first to reduce our dependency on foreign sources of energy and second, to reduce the carbon emissions. The purpose of this invention is to help in getting us closer to this goal.
Background Art
It is well known that a piezoelectric (PE) material or device can generate an electric charge or voltage and ultimately power, when it is mechanically stressed, as depicted in
As shown in
And vice versa, such a PE material can move mechanically when an electrical power or charge is applied to it, as in the PE “fan” depicted in
There are a certain number of materials that have/exhibit this PE phenomenon. For example, solids made out of certain ceramic materials, or sheets made out of KYNAR, usually flexible if thin enough, which is a plastic material, exhibit such a PE phenomenon.
My invention here is to utilize this PE phenomenon and such materials, to generate electric power, by applying mechanical stress and/or movements on such materials, for example from wind, from waves in the ocean or similar water bodies, or from anything that could generate a mechanical stress and/or movements in a PE material.
Of course, there should also be a way to capture the electric power that would be generated by these materials as a result of these mechanical inputs, and to store the generated electric power, or to use it or consume it right away. I propose using means to direct the generated electric power at the right instances in appropriate directions, so that if there are two units of electric power, that are generated at the same time but are of opposite polarity, then these two units would not cancel out each other. For this purpose, I am proposing a number of alternatives, described here below.
A first alternative is to use semi-conductors, such as diodes and/or transistors, to separate the output charges and collect the similar charges at individual collectors, separately from the non-similar charges, so that they do not neutralize each other. In other words, collect all the Positive (+) charges at the Positive (+) collector or terminal, and collect all the Negative (−) charges at the Negative (−) collector or terminal.
A second alternative is to break down any large size PE generator and/or Collectors into smaller units or segments. The purpose is again to reduce the chance of having one polarity charge neutralizing the opposite polarity charge, mostly by separating the generating elements from each other as much as possible and/or by separating the collectors as well, for the same purpose. All these alternatives include at the same time, features to facilitate the manufacturing processes to create the various proposed embodiments.
I propose that we could use either a “Bridge-” like electric circuit, as in
Most mechanical inputs can be evaluated as either producing a compression force or stress, or a tension force or stress, being applied on to the PE element. These forces or stresses can be constant or continuous, i.e. steady or hardly changing, or they can be changing either in a repeated fashion, e.g. like a wave form, or can be just individual impulses at a steady repeating manner or at some irregular intervals. Even if the applied forces or stresses create a bending situation, the end effect can still be presented or broken down as either compression or tension on the PE elements. In any case, the generated electric power should be captured instantaneously, so that one part of the generated power or charges would not negate or cancel out any of the other parts of the generated power or charges.
Let's say that in the set-up shown in
To maximize the utilization of the phenomena, we would like to capture the electricity generated “locally” along any spot/surface of the material, so that we don't negate a positive charge coming from one spot/surface by a negative charge coming from an adjacent spot/surface of the material, as in
Kynar is one of the plastic materials that exhibit PE Effect (PEE). We should be able to tap this phenomenon to generate electric power. Any other material that exhibit similar PE phenomenon can be used as well.
At a trade show, a company was exhibiting a “FAN”, made more or less a shown in
Well, I am proposing to do exactly the opposite or the reverse of this fan.
It is known that Piezo Electric Effect or PEE is reversible. That means that if you apply an electric signal to a PE element, you get a mechanical movement, and on the other hand, if you apply a reverse mechanical movement, e.g. by applying a force to the PE element, you get a reverse action, i.e. we get an electric signal output (power). (See
I propose to do just that. The reverse action.
In
This can be demonstrated, if such a strip with electrodes/terminals as shown is wired to a voltmeter or an oscilloscope. Then if the strip is tapped by finger or by a pencil or the like, then the signal on the scope would show an oscillation, almost like an AC electrical current signal, but the magnitude of the signal would decrease as the mechanical vibration of the strip fades away until the mechanical vibration or motion stops totally, at which time the electrical signal on the scope would stop as well.
So what I propose is to take advantage of this phenomenon to generate electricity and electrical power.
I would use such materials, any material that exhibits the PE Effect, and expose it to any means that will move it in a way that it will generate the “reverse” electrical output, and then use that output, as an electric power generated from the PE element. Lately, this kind of action is frequently referred to as “ENERGY HARVESTING”.
One of the possible moving/movement sources is “WIND”. If I use the Kynar strip or sheet as a “FLAG” and hold it in the wind, it will flutter and move hack and forth. See
We could convert it to DC, by some kind of “RECTIFYING” processes, for example, by using DIODES, whether a single diode, or a pair of diodes or by a “4-diode bridge”, see
Now let's look again at the PE Effect of a strip of Kynar. Let's go back to
In
Now let's analyze what happens in the flag shown in
Also, the charge at the mid-point between points A and B will be ZERO, because we would have zero deformation at that point.
If we look at the timing of these two charges, we can assume that the (+) charge at A will reach the terminal point T1 first, and a short time later, the (−) charge from point B will arrive to the terminal point T1 and will cancel out the (+) charge that came earlier from point A and the end result is that there will be no useable charge at terminal point T1 anymore.
So, at the top terminal T1, the positive charges generated at the top layers at A will be cancelled out by the negative charges generated at the top layers at B. So, there will be no residual charge accumulated, hence no power, at the top terminal T1. Similarly, at the bottom terminal T2, the negative charges generated at the bottom layers at A will be cancelled out by the positive charges generated at the bottom layers at B. So again, there will be no residual charge accumulated at T2, hence no power, at the bottom terminal T2 either. So, we will end up practically with zero charge at both terminals ‘T1’ and “T2”. Any other charges that may be generated at other points, such as point “C” or “D” in
So, to overcome this problem and to end up with any useful power, we need to have a clever way to separate these charges and to collect all the (+) ones together and bring them to the (+) terminal, and to collect all the (−) charges together and bring them to the (−) terminal. And we should prevent them from prematurely cancelling each other out. If we do that, then the magnitude of the charge will be considerably larger and we would have something more substantial, useful, useable output, because the charges would not have cancelled out each other, i.e. would not have neutralized themselves, as in the previous/above case, when we allowed them to intermingle.
How do we do this? Here it is further down below. This is the key/novel point of this invention.
But let us first take a brief excursion into the electronics behavior of Diodes and Transistors.
This can be represented schematically as shown in
Next, let's look at the rectifier circuits in
Next, I will show how we can arrive to something comparable.
More definitions may appear throughout the specification text, when appropriate.
Embodiments Group #1—Using Rectifier Circuits with PE rods, strips or sheets.
Please note the reference numbers of the various components in these two figures. They end up with similar last digit for any component that has a similar function. For example, the reference number of the PEE in
NOTE:
I have shown the rest of the correlations in the following table.
Similarly, with
In all the above figures, as well as the other figures in this specification, the cross-sectional area of the conductors and other components should be calculated and designed to accommodate the expected current flows. This is standard prior art practice.
A similar approach can be used to increase the flexibility of any of the other layers shown in the above constructions. However, there should be at least one layer or component, which will be kept in a shape, that will ensure the strength and integrity of the device, so that it would not fail or break down and fall apart, if exposed to high forces exerted on the device. This could be referred to as the “back-bone” of the whole structure. This hack-bone element can be made of a high strength material and could be located at one side of the cross-section and of course would extend through the whole length of the device. It could also be made out of what is known as Super Elastic material. This applies especially to the embodiments in the shape of cables or ropes to hold down posts and the like. See further down below. See for example,
Note that the semi-conductors 1633, 1634 and 1637, 1638 and the other components, i.e. the PEE 1632, the full conductors 1635 and 1639, in all the above can preferably be made of a continuous material for ease of manufacturing. For example, they can be in the shape of continuous sheets which would be laminated together, say in a hatch mode or a continuous, reel to reel process.
In some cases, certain number of these layers can be either vapor deposited, extruded, laminated, etc., one on top of the other. All these methods are well known in the prior art.
Another or an additional way to allow us to capture individual electrical charges, is to break the structure of the conductors, and especially the semi-conductor layers, into smaller segments, so that each individual segment would capture/harvest the individual charges generated by the smaller areas of the PE element or the PE sheet adjacent to them. In order to achieve this purpose, I propose a number of alternatives: One alternative is shown in
We would refer to these as “Transverse” cracks. We would run some experiments to determine and select the optimum sizes/diameters of the rollers, the spacing between the rollers, and the relational position of the rollers with respect to each other, both in the vertical and the horizontal direction and to see the effect on these selections on the segment size of the semi-conductors. The selection would also be dependent on the characteristics of the semi-conductor material, e.g. its rigidity, brittleness, thickness, dryness, etc. In other words, we will try to break or at least crack the layers of p-n diode material, to create smaller, isolates “islands” and preferably at least electrically separate them from each other, so that they would conduct only in one direction, normal to the surface of the sheet, but not from one island to the other islands adjacent to it.
Alternative Two: As is shown in
Alternative Three: We would run the sheets both as in Alternative One above as well as in Alternative Two above, to ensure that we get even smaller islands, which would be cracked and/or separated both in the “Transverse” as well as in the “Longitudinal” directions.
Another possibility is to use cables, 1917, with similar construction or cross section as in
Embodiments Group #4—Using individual PE elements, along the “Tie-Down” cables, holding a structure across the wind force or the like.
In
Another such a PE element is shown in
Here, in
For example, we have an intersection near where I live, where the road approaching the intersection has been provided with grooves 2107 across the road, to create vibrations in the car and in turn to alert the drivers of the approaching intersection. There are 4 or 5 groups of such grooves, placed at various distances between each grove and between each group of grooves.
These grooves have been carved out of the pavement. The pavement can be made of concrete or asphalt, and carving out these grooves can be difficult and costly.
I propose to use some sheet metal 2106, 2107 and form it with a machine, like the ones used to form rain gutters or the like. Then these sections of corrugated sheet metal can be placed on the road surface and nailed down or stapled down 2108. If necessary, we can use a stapling gun, to drive special nails 2108 into the concrete pavement, like the guns used in building construction.
Now, we can apply PE elements 2104 to the corrugated sheet metal and utilize the energy of the vehicles that will be driving over them to generate electric power, in a way similar to what I am describing in the present patent application, or equivalent.
Back to
Another difference in
We can place them one behind or after the other, like in a chain, as shown. Each one of these PE elements 1924 will feel the same pull on it, as the pull that will be exerted on each and every one in the “CHAIN”. Each one could be instrumented and the generated electric power can be collected, either in series or in parallel, down to a collecting or storage device, or to be utilized right on the spot.
Here is one way this would be built. A PEE 2511 with its two end conductors 2512 and 2513 are captured between the two hooks 2514 and 2515, as shown in
Of course, we can place the PEEs under tension, and we should expect them to generate electric power the same way. But, my feeling is that the PEEs would last longer, i.e. would have a longer operating life, if the PEEs are stressed under compression, instead of tension.
Each leaf will be a device that will generate electric power, utilizing the Piezo Electric Effect Power (PEEP) and the generated electric power will be conducted to a storage device 2821.
I will explain how to get there.
We have a few versions or variations, of all these parts in
A—Part 3111 can be an active PEE material or it can be a simple passive material.
B— Parts 3112 and 3114 can be either a passive conductor, or a semi-conductive material, or it can be a PEE material, or a multi-layer made of all these materials listed here.
C— Parts 3113 and 3115 can be either a simple conductor, or a multi-layer made of a semi-conducting material together with a regular conductive material.
In the next pages, I will explain and describe some of the different variations and combinations, that can be created, based on
Combination 1—Active Flag
See
a) Part 3111 of
b) Part 3113 and part 3115 will be regular conductive material, say like copper. However, each one of them is really two separate parts, where one of them is hidden behind the other. If we look at
c) Part 3112 will also be two different materials sitting between part 3111 and Part 3113, but the way we see them in
d) Part 3114 will also be two different materials, like part 3112, but obviously it is located between part 3111 and part 3115. Again, part 3114 is really two different parts, sitting one behind the other, one is p-doped and the other is n-doped. Again, we will see them in
Let's now study
In
Now, I will describe
In
Part 3112 of
Part 3113 of
You notice that in
On the lower part of
Part (2) is similar to part (1), being simply a regular conductor to ensure good electrical connections between the parts. This is equivalent to part 2B in
Below part (2), we see 2 parts, D2 and D3. D2 is a (−) doped semi-conductor, or REVERSE BIASED, and D3 is a (+) doped semi-conductor or FORWARD BIASED. These are equivalent to D2 and D3 in
Finally, we see another pair of
conductors, regular conducting material, e.g. copper, named (A) and (B). They are equivalent to parts ABE and BBE respectively in
D1, D2, D3 and D4 in
PE in the Lower Figures represents the PE in the upper Figs, and W, the load, in the lower Figs represents W in the Upper FIGS.
Now, let us see what happens when the PE element is activated. Frequently in this discussion, we will refer to this PE as the Source PEE or simply as PEE. Let's look at
Now the current will try to flow down along the 2 branches of the bridge, trying to get to point A and point B. However, it can really flow ONLY into the right hand side branch (1)-(A), because the Diode D1 is FORWARD BIASED (+) doped purposely so, so as to allow the current to flow. The Diode D4 is biased so that it will not allow the current to flow in the LHS branch.
Now, at point (A), the current cannot flow to point (2), because the DIODE D2 will not allow it. So, the current will flow down to point (A) at the load W.
From there, the current will get out of W at point (B) and go to the Bridge at point (B). The current will then flow to point (2) at the bottom of the bridge and from there to point (2) at the bottom of the PEE, to close the circuit.
Let's now look at
If the PE element is activated to generate a (+) charge/current, as in the top figure,
Now let's go to
We can follow the flow of the current in this case, where the PEE is activated to generate a (−)ve charge/current.
By following the arrows, as we did for
In this
So, we can see that this CONSTRUCTION of PEE and its surrounding components, as shown in the cross-sections of
First, it creates a “SELF-CONTAINED” generator of electric power. It comprises all the elements necessary to control the flow of the electric power in the proper and desired directions, and to help in generating and harvesting the electricity from the PE Element. It contains and comprises all the components required to execute all the functions necessary for its operation. Second, it is designed to facilitate its manufacturing and production and its utilization.
We can see all the components, namely the PEE, the Conductor 1T on top of the PEE, above/on top of the PEE; and the conductor 2B below the PEE; and on top of conductor 1T, we can see the diode D1 and the Bus Bar Out ATE and the diode D4 and the Bus Bar IN BTE, Below the conductor 2B, we can see the diode D3 and the Bus Bar (+) BBE, and the diode D2 and the Bus Bar (−) ABE.
The only difference between
This will be more appreciated, when we will look at
The Peep Tree
PS: Later, I will show in
First, we see a Storage Device 3617.
Second, we see a number of conducting wiring or cables, starting at the basic module, going to a First Level Junction Point 3613, then going to a second level junction point 3613, then to a third one and so on, until it reaches the storage device. We also see a number of diodes 3612, 3614, and 3616 along the conducting wiring, which I call “ONE-WAY VALVES”.
We can also see a number of capacitors, to balance the circuit. These can be selected and designed by any person skilled in the art.
The next figures will explain the functions of these components and expand.
We cannot expect that all the different PEEP LEAVES will vibrate in synch. Rather, we can expect that some leaves will generate Positive charges at a certain instants of time, while some other leaves will generate Negative charges at those exact same instants of time. We do not want these different charges to cancel each others out. So, we put in line what I call “ONE-WAY VALVES”, as shown. In this case, I call them the FIRST LEVEL ONE-WAY VALVES or simply the first one-way valves. They are disposed between the basic PEEP Leaves Modules and the 1st Level Branch, between the basic modules and the First Level Junction Points. They are shown more clearly in
We can see that we have 2 sets of one-way valves, each one located at the mouth of each branch, where it joins the next level branch, in this case, the branch going to the storage device.
Definition: LB=Level Branch.
It is preferred to do the following as well.
We can see that I have placed additional one-way valves on the storage device branch, between each mouth of each first level branch. This is to ensure that there is no conflict in the charges, being generated by any of the branches dumping their output in the higher level branch. In other words, we want to isolate the outputs coming from the individual branches, so that they would not cancel each other out.
Please notice another thing.
In
Definition: EP=Electric Power.
Combination 2—Passive Flag
First of all, the FLAPPING FLAG itself here is made of a passive material, i.e. a material that does not exhibit any Piezo Electric Effect (PEE) [DEF]. It can be made of any semi-flexible material, such as thick plastic sheets. Actually, it may even be more effective, if it is made out of solid rigid material, e.g. rigid plastic or even metal. It can be shaped, so that it can flap in the wind, but it needs to be strong or stiff enough to transfer the effect of its flapping motion to the base of the flag.
Second, the base of the flag, in this case, will contain the PEE Elements (PEEE). The PEEE will sense the motion of the flapping flag and utilize this motion to generate the electric power.
Now we can break down the action at the base of the flag into at least two sub-combinations as follows: Combinations 2-A and 2-B.
Combination 2-A is where the base of the flag is maintained in a rigid position by some appropriate clamps and supports, not shown, and Combination 2-B is where the base of the flag itself is allowed to flex and to swing in the direction of the movement of the flag or flapper.
In both cases, but especially in Combination 2-B, the flag itself should be more stiff or rigid, so that when it swings up and down, or right and left, with the wind movement, then the base of the flag will follow the motion of the flag and will swing up and down, or right and left, with the flag itself.
Combination 2-A
These are common knowledge in the Prior Art.
We can have only one PEEE, if we want, but with two, we would basically almost double the output.
We can see that TPE is instrumented to have diodes positioned on top of it. With the proper manufacturing technique, we can duplicate here, something similar to what we have accomplished in
Now.
Notice that
Since this front part of the TPE will be under compression, it will generate a potential in a certain direction. The diodes TD1 and TD2 will each react according to its doping and to the direction of the potential and the resulting current. In this
Now, the back (left side of the figure) end of the PEEE, TPE, will not see a compression force on it, but will sense a release of any compressive forces that were acting on it, due to the clamps and supports. It will be as if there is a tensile force acting. Actually, if the TPE is glued to the flapper, then the TPE will sense an actual pull. The result if this will be the opposite of what happens at the front side of the TPE. This will result in that TD3 will allow the current to flow and TD4 will not allow any current to flow.
Actually, even if there are no changes in the forces and stresses on this back end of the TPE, the diodes TD3 and TD4 will respond in the same way, just because of the potential generated at the front end of TPE.
The end result of all this will be that both TD3 and TD2 will allow the current to flow through them as shown by the arrow E2R, and the two other diodes, TD1 and TD4 will not fire, will not allow any current to flow through them.
Now looking at the lower components below PEE, we can follow the effects of the flapper moving upwards and we can see how diodes BD1 and BD4 will allow any resulting current to flow through them in the direction of arrow E2L (Energy to the Left), while diodes BD2 and BD3 will not.
So,
In all the above, the lower BPE will be stressed in the opposite way from TPE and will create an electric current flowing in the opposite direction of the current generated by TPE.
Here in
Of course, I am saying that all these components are kept in place by certain appropriate clamps, supports, electrical connections to the outside world, insulations, etc. (not shown), which are all known to any person skilled in the art.
Combination 2-B.
I am not showing a component that corresponds to part 3113 of
The portion AB of the PEEE 4613 is held or glued fixed in position by the bracket 4611, equivalent to part 3115 of
Here the flag has been moved, say by the wind, or by any other moving force or external action applied to the flag, to a lower position as shown. Portion CD of the PEEE has been moved to follow the position of the flag, again as shown. The portion BC of the PEEE is now twisted between the end B, near the bracket, and between the end C, near the flag. This is the portion that will be under STRAIN, and which will generate some electrical charge, voltage, current, if the material of the PEEE is such that it can respond and be activated by such a strain.
Now, we can experiment with various materials and select the ones that do respond to such a strain, and then design an electrical scheme, similar in many ways to those described earlier in this specification, and end up having some electrical power being generated from such a COMBINATION 2-B Device.
The portion DE of the PEEE will behave in a similar fashion as the portion BC, but in a mirror image way. Again, we can capture the electric power generated form it and collect it in a similar fashion, but in the reverse direction, as fits best.
I would like to expand my description of the CD portion of the PEEE. In
I have outlined the portion CD as being split in the middle, so as to isolate the two halves electrically from each other. This may be an overkill. I did this to show that we could isolate the 2 halves if we wanted to. But I feel that after a proper amount of experimenting, we may find that doing so does not buy us or add any special benefits. So, in that case, we may opt to keep the two halves together as one unit, i.e. without the split in the middle.
The rails above and below the leaves represent the other main components, which are the semi-conductor D1 and the Bus Bar ATS directly adjacent to and on top of the leaves, then semi-conductor D4 and the bus bar BTS next on top of that. Then semi-conductor D2 and the bus bar ABS below the leaves and finally semi-conductor D3 and the bus bar BBS below those.
Let me explain it another way.
Please look at
I used two figures,
The outlined area, designated as “MO”, which stands for “Module Outline”, is just that. It is the outline of the basic module, shown in
So, let's visualize that all the components that are shown in the figure are physically above the Peep Leaf (PL), i.e. are actually above the surface of the PEE sheet. They are similar to the components shown at the top area of
I gave the components the same names and reference letters and numbers in both
Similarly, the components in the area of the figure below the PES in
We can also see D4 on top of conductor (1T) and on top of this D4, we have the Bus bar BTE in
The same arrangement is repeated below the PE Sheet (PES) in the drawing, as well as physically.
The conductor (2B) in
This way, we can manufacture such PEE Elements in a continuous fashion and end up with a less expensive product. The semi-conductor components, as well as the conductive bus bars can be printed on, or can be laminated on and then etched to create the desired traces etc, similar to the way many flexible circuits are made in the industry.
The same technique can be used with a flat sheet of PEE material, as in
This can be considered like cables or strands, woven into a cloth.
Another possible EMBODIMENT: the P- and N-doped fibers or strands can be printed on the fabric. They can be printed as dots, and/or lines or stripes.
Applying the Semi-Conducting Material
Print the pnp or pn semiconducting material on the respective surfaces.
Printing can utilize the nano-technologies being developed continuously nowadays.
The doped materials, that constitute the p or the n elements can be either printed on, or deposited on, the respective surfaces, by any of the available methods known in the prior art. These could be also stenciled on, or done using chemical deposition, vapor deposition, plating, whether electro-plating or electro-less, or by anodizing, etc.
They can also first be applied to the whole surface at once and then selectively removed, from certain areas, to create any of the desirable shapes, like traces, islands, etc.
This present application is based on Provisional Patent Application Ser. No. 61/458,036, filed Nov. 16, 2010, title “PEEP1 PIEZO ELECTRIC EFFECT POWER 1”, which will be referred to as Ref1, AND this present application claims all the benefits of this Provisional Patent Application No. 61/458,036.
| Number | Name | Date | Kind |
|---|---|---|---|
| 20070145861 | Tanner | Jun 2007 | A1 |
| 20100141096 | Churchill et al. | Jun 2010 | A1 |
| 20100164231 | Tsou | Jul 2010 | A1 |
| 20110156532 | Churchill et al. | Jun 2011 | A1 |
| 20110278990 | Knowles et al. | Nov 2011 | A1 |
| Number | Date | Country | |
|---|---|---|---|
| 20120286625 A1 | Nov 2012 | US |
| Number | Date | Country | |
|---|---|---|---|
| 61458036 | Nov 2010 | US |