Electric energy transmitting and receiving system based on friction nano-generators

A nano-generator, transceiver system technology, applied in triboelectric generators, induction generators, battery circuit devices, etc., can solve problems such as large installation space, limited application range, high driving frequency, etc., to reduce output voltage and improve output. performance effect

Active Publication Date: 2021-08-27
TSINGHUA UNIV
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AI-Extracted Technical Summary

Problems solved by technology

However, these types of charge pumps are all contact-separated charge pumps. Although the charge density has been gradually increased, they all have inherent shortcomings and deficiencies: First, the voltage and current generated by the contact-separated charge pump are based on There are sharp peaks in the form of pulse waves, which bring great difficulties to the smooth processing of voltage and current that subsequently p...
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Abstract

The invention provides an electric energy transmitting and receiving system based on friction nano-generators, which comprises a driving assembly, a first friction nano-generator and a second friction nano-generator driven by the driving assembly, a circuit management module connected between the first friction nano-generator and the second friction nano-generator, and a capacitor which is connected between the second friction nanometer generator and the load, wherein the capacitance of the capacitor is equivalent to the equivalent capacitance of the second friction nanometer generator; the first friction nanometer generator adopts an independent friction layer type friction nanometer generator and is driven by the driving assembly to generate alternating current, and the circuit management module rectifies the alternating current generated by the first friction nanometer generator, converts the alternating current into direct current and transmits the direct current to the second friction nanometer generator and the capacitor; and the second friction nanometer generator is a contact sliding type friction nanometer generator, and in the driving process of the driving part, charges flow back and forth between the second friction nanometer generator and the capacitor to form electric energy output to the load.

Application Domain

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  • Electric energy transmitting and receiving system based on friction nano-generators
  • Electric energy transmitting and receiving system based on friction nano-generators
  • Electric energy transmitting and receiving system based on friction nano-generators

Examples

  • Experimental program(1)

Example Embodiment

[0030] In order to make the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended to explain the present invention, and the scope of the invention is not limited.
[0031] In order to better understand the present invention, an application example of a power transmission and receiving system proposed by a friction nanchron generator is described in detail below.
[0032] See Figure 1 ~ 3 According to an embodiment of the present invention, a power transmission / reception system based on a friction nanchron generator includes a driving assembly 300, a first friction nangers 100 and a second friction nano generator 200 driven by the driving assembly 300, connected to the first friction. The circuit management module 400 between the nano generator 100 and the second friction nano generator 200, and between the second friction nangers 200 and the load 600 for storage and release from the second friction nanchronic generator 200 Capacitor 500 of flow charge; first friction nano generator 100 as a charge pump in the system, using a separate friction layer TENG; second friction nangers 200 as the main TENG in the system, adopting contact slip TENG. The first friction nano generator 100 is used to provide electrical energy for the second friction nangers 200 and the capacitor 500 to increase the amount of charge in the second friction nanchrmeter 200 and the capacitor 500, and charge is in the second friction nano generator 200. Flow back and forth between the capacitor 500 to form an external output.
[0033] The specific implementations and functions of each component in the embodiments of the present invention are described below:
[0034] The drive assembly 300 is used to slide the first friction nangers 100 and the second friction nano generator 200 to produce static induction. See figure 2 In this embodiment, the drive assembly 300 includes a fixed seat 302 and a push plate 303 that sequentially set; a straight rail 304 is fixed by a screw 304 on one side of the fastener 302 facing the push plate 303, and is fixed by screws 303. The slider 305 is drumped along the straight rail 304, and the push plate 303 can be repeatedly slid along the straight rail 304. The first friction nanchr electrifier 100 and the second friction nano generator 200 are disposed between the fixing seat 302 and the push plate 303, wherein the first friction nanchron generator 100 and the second friction nangers 200 are raised. The plate 303 synchronously moves, the stator portion of the first friction nangers 100 and the second friction nanchron generator 200 is in a stationary state with the mount 302. Further, the holder 302 is fixedly mounted on one base 301, which allows the power transmission and reception system to be placed on the test platform or on the ground.
[0035] See Figure 4 The first friction nangers 100 of the present embodiment employ a slip-type independent friction layer TENG structure, including the first electrode substrate 101, the first electrode 102, the first friction layer 103, the second friction layer 104, and the second friction layer 104, and The slide 105, the first friction layer 103, and the second friction layer 104 are made of a material having different frictional electroacies; wherein the first electrode substrate 101 is fixed to the driving assembly 302 on the side of the push plate 303. The first electrode 102 is adhered to the fork finger electrode adhered to the upper surface of the first electrode substrate 101, and the fork finger electrode can improve the charge pump output frequency, thereby increasing the output efficiency, and the first friction layer 103 is adhered to the upper surface of the first electrode 102. The first electrode 102 is completely covered by the first electrode substrate 101, the first electrode 102, and the first friction layer 103 constitute the stator portion of the first friction nanchronic generator 100; the slide 105 is fixed to the push plate 303 facing the holder 302 On one side, a convex structure is provided on one side of the slide 105 toward the first friction layer 103, and the second friction layer 104 is adhered to the surface of the convex structure, and is formed by the slide 105 and the second friction layer 104. A moving nano generator 100 is rubbed. During the movement of the slide 105 with the push plate 303, the first slide 105 slides on the first friction layer 104 under the first friction layer 103 under the action of the push plate 303, which is different from the frictional electrical negative properties of the two friction materials. Also produce an equal amount of heterogeneous charge on the second friction layer 104 and the first friction layer 103, which forms an electrostatic field between the two friction material films. Under the electrostatic induction, the charge adhesive to the surface of the first electrode 102 below the first friction layer 103 will be redistributed, and the potential difference is formed inside the first electrode 102, and when the wire is used to lead the external load 600, if the electronic components, such as electronic components, etc. There is current flow over load 600, and outputs electrical energy.
[0036] See Figure 5 The second friction nangers 200 of the present embodiment employ a side sliding parallel plate TENG structure, which is the parallel plate variable capacitor, which can generate charge by the frictional effect itself, or can be stored by an equivalent capacitor effect. The second friction nano generator 200 includes a relatively disposed first plate assembly and a second plate assembly, both the fastening seat 302 in the drive assembly 300 in a stationary state, as a second friction nanchronic generator 200 The stator portion, the second plate assembly reciprocates with the push plate 303 in the driving assembly 300, which acts as a motor portion of the second friction nanchronic generator 200, thereby changing between the first plate assembly and the second polar plate assembly. The relative area. The first polar plate assembly includes a first capacitive substrate 211, a first cushion 212, a second electrode 213, and a first insulating layer 214 that are sequentially stacked, and the first capacitive substrate 211 is fixed to the drive assembly 300. 302 facing push plate On the side of 303 and the area of ​​the first electrode substrate 101 is provided. The second polar plate assembly includes a second insulating layer 224, a third electrode 223, a second cushion 222, and a second capacitor substrate 221, which are stacked sequentially stacked, and the second capacitor substrate 221 is fixed to the drive assembly 300 push plate 303 facing the fixed seat. On the side of 301 and the area of ​​the slide 105 is not provided. Since the buffering effect of the first cushion pad 212 and the second cushion 222, the second electrode 213 and the third electrode 223 can be insulated in the interleave relative motion to ensure that the spacing between the two is minimized to improve the equivalent capacitance value. Further, the charge storage and release capability of the second electrode 213 and the third electrode 223 is increased, and the buffer shock absorption effect is increased, and the insulating layer film is worn, and the life is extended.
[0037] The circuit management module 400 is connected between the first friction nanchrin generator 100 and the second friction nanchron generator 200 for converting the alternating current generated by the first friction nangers 100 to DC power to give the second friction nanchronic generator, respectively. 200 of the two electrode plates 213 and 223 injection oriented heterogeneous charge, improve the surface charge density of the diffusion of the diffusion. See Image 6 The circuit management module 400 includes at least three diode 402 and at least three capacitances 401, and has spreadability, but it is necessary to ensure that the diode 402 and the capacitor 401 are always equal, the diode performs the first tail positive and negative electrode series, each capacitor interleave is connected in series Between the diode, due to the one-way turning characteristics of the diode, the capacitance plate along the tandem positive electrode side is a high potential, and is a positive voltage, and in order to stabilize the output voltage, one regulator diode 403 is connected in parallel to the circuit. The output port is also due to the voltage accumulation of the series capacitance, there is therefore have a double role in lifting voltage and rectification.
[0038] The capacitor 500 is connected between the load 600 and the second friction nanchron generator 200, and the capacitor of the capacitor 500 should be equivalent to the equivalent capacitance of the second friction nangers 200 with a commercially available capacitor. The capacitor 500 is used to store and output a oscillating charge generated by the second friction nangers 200. Specifically, when the equivalent capacitance value between the first plate assembly between the second friction nanchron generator 200 is large, the second friction nangers 200 stores the capacity of the charge, and the capacitor 500 is stored. The charge will flow into the second electrode 213 and the third electrode 223 flowing to the second friction nanchron generator 200 through the load 600, such as the light or the like; the first plate assembly and the second plate assembly of the second friction nangers 200 When the equivalent capacitance value of the second friction nano generator 200 is reduced, the charge of the two conductive electrode plates is reduced to the capacitor 500 through the load 600 such as the electric lamp or the like. The first polar plate assembly and the second plate assembly and the charge between the capacitor 500 are flowed back and forth, and the alternative change in the connection of the first plate assembly and the second plate assembly and the capacitor 500 can be used for Output power.
[0039] The working principle of the invention is:
[0040] The outer force push plate 303 slides forward (i.e., the left side shown in the figure), so that the slide 105 and the second capacitor substrate 221 secured to the lower surface of the push plate 303 are slid forward, which in turn is thrown into the slide 105 The second friction layer 104 of the convex structure surface slides on the first friction layer 103 adhering to the upper surface of the first electrode 102, and is simultaneously bonded to the second cushion 222 on the second capacitor substrate 221, the third electrode The 223 and the second insulating layer 224 also slide together so that since the second friction layer 104 and the first friction layer 103 are different, the second friction layer 104 and the first friction layer 103 are equal to the same amount. Heterogeneous charge is formed between the first friction layer 103 and the second friction layer 104, due to the electrostatic sensing action, the charge adhered to the surface of the first electrode 102 of the first friction layer 103 will be redistributed, and in the first The electrode 102 generates a potential difference, and due to the sliding action and the grid format structure of the first electrode 102, the electrostatic field direction of the first friction nano generator 100 is alternately changed, and the direction of the electrostatic induction generated is also alternating. When the two output terminals of the first electrode 102 are connected, the charge alternating flow is characterized by an alternating current output.
[0041] The alternating current of the first friction nanchr electrifun generator 100 via the rectification of the circuit management module 400 into a DC current, and the second electrode 213 and the third electrode 223 of the second friction nano engine 200 are injected into the equivalent heterogeneous charge to charge. Also gives a capacitor 500 in parallel with the second electrode 213 and the third electrode 223. When the second electrode 213 and the relative area of ​​the two-pole plates of the third electrode 223 becomes large, the equivalent capacitance between the second electrode 213 and the third electrode 223 is large, and the charge charge is large. The capacity becomes large, and the charge stored in the capacitor 500 will return back to the second electrode 213 and the third electrode 223 by the load 600 such as a light, and the like; it is contrary, when the second electrode 213 and the third electrode 223 When the relative area of ​​the two eglings is small, the equivalent capacitive value between the two poles 223 of the second electrode 213 and the third electrode 223 becomes small, the capacity of the charge storage is small, and the second electrode 213 and the third electrode 223 are redundant. The charge flows back to the capacitor 500 through the load 600 such as the electric lamp or the like. Therefore, the electric charge is flowing back and forth between the second electrode 213 of the second friction nano engine 200 and the third electrode 223 to flow back and forth in the capacitor 500 to output electrical energy.
[0042] Further, see Image 6The AC current generated by the first friction nanchron generator 100 is rectified by the circuit management module 400 to direct current to the second friction nangers 200 and the capacitor 500. The circuit management module 400 includes a main circuit composed of at least three first diode 402 and at least three first capacitance 401, and a regulated diode 403 coupled between the main circuit input and the output terminal. The main circuit has scalability, but it is necessary to ensure that the number of first diode 402 and the first capacitor 401 is always equal, and each first diode 402 is connected in series, each first capacitor 401 is interlaced in series Between the two first diode 402; due to the one-way conduction characteristics of the first diode 402, the polar panel of the first capacitor 401 in series in series is high, representing For positive voltages, since the voltage accumulation of the first capacitor 401 is connected in series, the circuit management module 400 has a double effect of lifting voltage and rectification, while using the voltage regulator diode 403 to ensure a suitable voltage output threshold. The relative area between the second electrode 213 of the second friction nanchr electrifuetor 200 and the third electrode 223 then periodically becomes larger as the push plate sliding movement, which causes the second electrode 213 and the first The equivalent capacitance value between the two-pole plates of the three electrode 223 periodically becomes large and reduced, so that the capacity of the storage charge is also increasing, that is, the second electrode 213 and the third electrode 223 electrode plate. The charge will periodically increase and decrease, and the increase in charge is also stored from the capacitor 500 from the capacitor 500, so that the capacitor 500 can be seen as a "water storage pool", which acts as a reserved charge Role. Q + And negative password Q - The charge periodically periodically flows back and forth between the second electrode 213 and the third electrode 223 and the capacitor 500 of the second friction nanchrinity, and form an alternating current current.
[0043] Further, see Image 6 A multiplier rectifier 710 can be respectively provided on the connection passage of the second friction nano generator 200 and the load 600 and the capacitor 500, one of which is disposed in the negative electrode end of the second friction nanchron generator 200 and the capacitor 500. There is between the negative extreme, and the other multiplier rectifier 710 is disposed between the positive end of the second friction nanchron generator 200 and the positive end of the capacitor 500. The alternating current generated between the second friction nangers 200 and the capacitor 500 can be used in DC power transfer 600. Therefore, the positive and negative passage Q + Sum - Can make the power output double, such as Figure 7 In the middle (a) and (b), it is a symmetrical and oscillating output charge and a symmetrical voltage measured in the output of the multiplier 710, respectively.
[0044] According to the physical characteristics of the general capacitance, the circuit management module 400 employed in this example can improve the voltage of the second electrode 213 of the second friction nanchron generator 200 and the surface of the surface of the third electrode 223 to store more charges. The amount, that is, the surface charge density can be improved, which will cause the active value when the second electrode 213 and the third electrode 223 is changed during the positive channel Q. + And negative password Q - The amount of charge involved in the flow is increased, and the flow current is increased to increase the electric energy output; at the same time, the introduction of the second friction nano generator 200 can enhance and stabilize the electrical energy output of the first friction nano generator.
[0045] In order to verify the above conclusions, the present invention is designed Figure 8 The switch adjustment circuit shown, specifically, a full bridge rectifier 720 and a plurality of switches are added between the first friction nangers 100 and the second friction nangers 200, and connected to the capacitor 500 in the second friction nangers 200 The current measuring unit 800 and the voltage measurement unit 900, the current measuring unit 800, and the voltage measurement unit 900 are equipped with a high impedance electrostatic meter system 6514. The first friction nano generator 100 provides charge and current according to the system of the present invention, according to S BV0 -S BV2 S PV0 -S PV2 Different interrupt combination status of the switch to adjust the flow direction of the current in the system, specifically, when the switch S PV0 S PV1 S PV2 For closed state, switch S BV0 S BV1 S BV2 In order to open the state, the current passes through the full bridge rectifier 720 to enter the second friction nanchronic generator 200 and the capacitor 500, charge the second electrode 213 and the third electrode 223 and the capacitor 500, the second electrode 213 and the third electrode 223 The relative area of ​​the room periodically becomes larger, and its equivalent capacitance and charge storage capacity will become increasing and narrowed, due to the electric charge "water storage pool" of the capacitor 500, the path Q + and the negative passage Q- There will be back and forth charged charge Q S Generation, the total charge amount q injected at the same time 0 At the quantity equal to the amount of charge q stored on the second electrode 213 and the third electrode 223 M , The amount of charge q stored in capacitor 500 B And the flow rate Q in the passage S The sum of the three. Rounded flowing charge Q S The alternating current generation is generated, and the alternating current I in the passage is measured by the high impedance electrostatic meter system 6514 in the current measuring unit 800. 1 The high voltage probe in the voltage measuring unit 900 (HVP), the high voltage probe is referred to, to measure the output voltage V at both ends of the capacitor 500. 1.
[0046] like Figure 9 The voltage V after the rectified output is compared. Rec Switch S PV1 S PV2 The voltage of both ends) and the second electrode 213 and the third electrode 223 two-polar plates in the second friction nano generator 200 V Main It can be seen that the voltage V Main And voltage V Rec Have the same maximum voltage V H0 , But voltage V Rec The minimum voltage is much lower than the voltage V Main Minimum voltage, indicating voltage V Main The output voltage fluctuations are smaller, and the output electrical energy is more stable, i.e., the second friction nano generator 200 can enhance and stabilize the electrical energy output of the first friction nano generator.
[0047] Subsequently, the switch state of the circuit is adjusted, and the switch S is specifically BV0 S BV1 S BV2 Set to a closed state and switch S PV0 S PV1 S PV2 In order to open the state, the charge and current of the first friction nanchron generator 100 enters the second friction nanchron generator 200 and the capacitor 500 after the circuit management module 400 is rectified. like Figure 10 As shown, the circuit management module 400 can output the theoretical double pressure (C P -2), four times pressure (C P -4) and six times pressure (C P -6), but in terms of experimental measurement, the structure of this design is twice in these three modes (C P -2) The output voltage can be maximized (V 2 V 4 V 6 ) At the same time, the fluctuation of output voltage is also the smallest and most stable (ΔV) 2 4 6 ). Therefore, the circuit management module 400 is preferably twisted (C P -2) mode.
[0048] Also use the high impedance electrostatic meter system 6514 in the current measuring unit 800 to measure the alternating current I 2 The high pressure probe HVP in the voltage measuring unit 900 to measure the voltage V at both ends of the capacitor 500 2. Compare the current and voltage curves obtained after the two adjustment circuits, the full bridge rectifier 720 and the circuit management module 400, such as Figure 11 As shown in (a) and (b), the output voltage graph and the output current curve are shown. Depend on Figure 11 (A) can be seen that the circuit management module 400 is compared to the general full bridge rectifier 720, although the output voltage has the same voltage peak (V BH ≈V RH ), But the voltage system is more stable (discharge time t) b T r ), Also have a higher output current (current intensity i 2 = I B I R = I 1 ). Therefore, the introduction circuit management module 400 and the second friction nangers 200 adjust the circuit to enhance the output performance of the slip TENG charge pump.
[0049] In addition, both the different frequencies of driving motion and different capacitors have an important effect on the output of the system. Figure 12 The output current increases linear as the driving frequency increases, that is, the faster the drive frequency, the larger the output current. same, Figure 12 The output current will increase linearly as the capacitance of the capacitor 500 increases, that is, the capacitance of the capacitor 500 increases, the capacitor 500 can store more charges, the more charges involved in the flow, the output The greater the current.
[0050] Further, in order to improve the output performance of the electric energy transceiver system according to the embodiment of the present invention, it can be applied to the low-power electronic components, the low voltage and large current, is provided. Figure 13 The step-down rising circuit shown.
[0051] The TENG circuit output schematic is mainly designed to be designed by a plurality of switches, capacitors, and diodes, which act mainly to reduce the output voltage of the second friction nangers 200. , Stabilize and increase the output current of the second friction nano generator 200, according to the switch S 1 S 2 Different conduction conditions to control the storage and output of the power. Specifically Figure 13 As shown, the step-down growth circuit 90 is respectively disposed in a positive and negative pathway between the second friction nangers 200 and the capacitor 500, respectively, and a single buck coefficient circuit unit 90 mainly includes nine second two. The pole tube and four second capacitors can be extended but the number of second capacitors is one-third of the number of second diode, wherein each of the three second diode is a group. Three second diode in one group were internally tail in series, and adjacent two sets of second diode tubes were parallel, each of the second capacitors were parallel between two second diode tubes of different groups.
[0052] In order to measure the working principle of the buck rising circuit 90, the buck coefficient is added to measure the current table A for measuring the output current, and the voltage gauge V, load R, two switches S are used to measure the output voltage. 1 S 2 And power V DC. like Figure 14 (a) and (b) shown, when the switch S 1 Closed, switch S 2 When disconnects, Figure 14The second capacitance shown in the fact line is connected in series, and the second capacitor shown in the dashed line is not involved in the work, and the second capacitance and the second diode conduction due to the one-way conduction of the second diode. The first end is connected in series, and the system voltage is split into each second capacitor, and the second capacitor is charged in series. Switch S 1 Disconnect, switch S 2 When closed, Figure 14 The second capacitance shown in (b) is paralleled in parallel, the second capacitor shown in the dashed line is not involved in the work, and the second capacitor is parallel to two groups at the end of the second diode. A series of second diode tube is simultaneously discharged, and the output voltage is only a single second capacitor, thus achieving the purpose of reducing the voltage and increasing current.
[0053] In summary, in order to improve the electric energy output performance of TENG, the present invention proposes a power transmission and receiving system based on a friction nano generator, which mainly includes a first friction nanchron generator, a second friction nanchron generator, and a capacitor. The first friction nanchron generator is used to inject charge and current to the second friction nangers and capacitors, and the second friction nano generator uses the frictional effect itself generates charge and utilizes an equivalent capacitor effect to store charge. The equivalent capacitance value is changed by changing the opposing area of ​​the electrode of the electrode in the second friction nanchron, thereby changing its ability to store charge, between the electrodes of the electrode in the second friction nanchuger and the capacitor Circulation flows to generate an alternating current to output electrical energy. The circuit management module is used to stabilize the voltage of the two-pole plates of the electrode in the second friction nano generator, thereby increasing the surface charge density of the diffusion of the two poles, so that the amount of charge of the flow in the circuit increases, increasing the flow current, and improve the power output. The system of the present invention also includes an electrical energy output adjusting unit for converting the high voltage low current of the second friction nanchron generator to a low voltage and high current to supply power to a small power electronic component, to increase the electrical energy of the system. Output Power. Therefore, the power transmission and receiving system proposed by the present invention overcomes the disadvantages and insufficient contact of the contact separation charge pump technology, and essentially distinguishes the traditional TENG power output method, and the output voltage of TENG can stabilize the output voltage and improve the output current, to explore TENG. The electric energy output provides a reference and method for reference and reference.
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