CN116365926A - CD-ROM structure, optical energy conversion equipment based on the structure and design method - Google Patents
CD-ROM structure, optical energy conversion equipment based on the structure and design method Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1815—Rotary generators structurally associated with reciprocating piston engines
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1853—Rotary generators driven by intermittent forces
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention discloses an optical drive structure, optical energy conversion equipment based on the structure and a design method thereof, relating to the technical field of energy conversion, comprising an optical response expansion piece, a central disk and an illumination area; the number of the light response telescopic pieces is at least two, the annular arrays of the light response telescopic pieces are uniformly distributed and fixed on the outer side of the central disk, the illumination area is positioned on one side of the central disk in the horizontal direction, the illumination area takes the center of the central disk as a base point, and the central angle of the illumination area is less than 180 degrees; the center of gravity of the light response telescopic piece is radially deviated when the light response telescopic piece moves to the illumination area, the center of gravity of the whole CD-ROM structure is deviated along with the deviation, and the center disc can rotate along with the rotation of the center disc; the invention constructs the CD-ROM structure by using the characteristic that the Liquid Crystal Elastomer (LCE) material can shrink and deform along the length direction after being irradiated by light, and can continuously rotate under the condition of light to convert light energy into mechanical energy.
Description
Technical Field
The present invention relates to the field of energy conversion technologies, and in particular, to an optical disc drive structure, and an optical energy conversion device and a design method based on the same.
Background
As renewable energy sources have gradually begun to be developed and utilized, light energy is a favored source of energy by virtue of its renewable, non-interfering, and widely available nature. Common light energy conversion devices are solar photovoltaic panels that rely primarily on converting light energy into other forms of energy for use.
The solar power generation panel is a device for converting solar energy into electric energy by photovoltaic effect, and is composed of a plurality of semiconductor photodiodes which are connected in parallel or in series, when sunlight irradiates on the photodiodes, the photodiodes can convert the solar energy into electric energy to generate current, and then the current is stored by a storage battery; compared with the traditional thermal power generation and nuclear power generation, the solar power generation has the advantages of flexibility, permanence and the like. However, solar panels also suffer from a number of problems and drawbacks in terms of light energy conversion. For example, a solar power panel relies on photovoltaic power generation, the problems of unstable output power and chemical pollution in the reaction process exist in the process, a large amount of pollutants are generated in the production and elimination processes of a photovoltaic crystal silicon component and a storage battery, the environment is polluted and destroyed, and meanwhile, the converted electric energy is required to be stored, so that certain energy loss is generated in the storage and recycling processes.
Accordingly, based on the above shortcomings, a novel light energy conversion technology based on light responsive materials is provided.
Disclosure of Invention
The invention aims to provide an optical drive structure, optical energy conversion equipment based on the structure and a design method thereof, solves the problems of high manufacturing cost, large pollution, pollution in equipment maintenance and elimination processes and the like of the traditional optical energy conversion equipment, and adapts to the social development trend of energy conservation and emission reduction; meanwhile, in the aspect of light energy conversion, the invention directly converts light energy into mechanical energy and utilizes the mechanical energy, and can also reduce a part of energy loss generated in the storage and recycling processes.
The invention provides an optical drive structure, which comprises an optical response telescopic piece, a central disk and an illumination area; the number of the light response telescopic pieces is at least two, the annular arrays of the light response telescopic pieces are uniformly distributed and fixed on the outer side of the central disk, the illumination area is positioned on one side of the central disk in the horizontal direction, the illumination area takes the center of the central disk as a base point, and the central angle of the illumination area is less than 180 degrees; the optical response telescopic parts move to the illumination area, the gravity centers of the optical response telescopic parts are radially deviated, the gravity centers of the whole optical drive structure are deviated along with the radial deviation, the central disc rotates, and a plurality of optical response telescopic parts sequentially enter the illumination area along with the rotation of the central disc, so that the central disc reciprocally rotates.
Preferably, the light response expansion piece comprises a transparent pipeline, a spring, a mass ball and an elastic optical fiber rope; the two ends of the transparent pipeline are respectively fixed with the central disc and the connecting ring, the spring, the mass ball and the elastic optical fiber rope are sequentially fixed from inside to outside and are arranged in the transparent pipeline, the inner end of the spring is fixed with the central disc, the elastic optical fiber rope is fixed with the connecting ring and is made of a Liquid Crystal Elastomer (LCE) material, the elastic optical fiber rope can shrink when being irradiated by an illumination area, and the mass ball can be pulled along the radial direction of the central disc, so that the center of gravity of the CD-ROM structure is deviated; and the elastic optical fiber rope is restored to the original state when moving out of the illumination area, and the quality ball returns to the initial position due to the elasticity of the spring.
Preferably, the optical response expansion piece further comprises a connecting ring and a central shaft, wherein the outer end of the optical response expansion piece is fixed on the inner wall of the connecting ring, and the central shaft is rotationally connected with the central disc.
Preferably, the solar energy collecting device further comprises a light shielding plate, the light shielding plate is arranged on one side, close to sunlight irradiation, of the central disc, a fan-shaped notch is formed in the light shielding plate, when sunlight irradiates the light shielding plate, a non-illumination area is arranged in a region shielded by the light shielding plate, an illumination area penetrates through the fan-shaped notch, and an included angle of the illumination area is as follows: (360/a) degrees-180 degrees, wherein a is the number of light responsive retractors; the included angle of the sector-shaped notch is matched with the included angle of the illumination area.
The invention also provides optical energy conversion equipment which comprises the optical drive structure, a gear transmission structure and an output unit; the gear transmission structure is used for connecting the CD driver structure with the output unit and driving the output unit to rotate.
Preferably, the gear transmission structure comprises a first external gear ring and a second external gear ring; the first outer gear ring is fixed on one side of the central disc, a rotating shaft is fixed at the central position of the second outer gear ring, and the output unit is arranged on the rotating shaft.
The invention also provides power generation equipment which comprises the CD-ROM structure, a plurality of coil groups and two permanent magnets; the coil groups are distributed in the center disc through an annular array, the two permanent magnets are symmetrically arranged on the front side and the rear side of the CD-ROM structure, and the power transmission ends of the coil groups are connected with an external storage battery or an external power utilization device through wires; the CD-ROM drive structure drives a plurality of coil groups to synchronously rotate when rotating, when the coil groups pass through the magnetic field of the permanent magnet, the coil groups all perform the motion of perpendicularly cutting the magnetic induction line, induced current is generated, the induced current is transmitted to an external storage battery or an external power utilization device by utilizing a lead, the permanent magnet is fixed on a central shaft, and the two permanent magnets are connected and fixed by utilizing a connecting block.
The invention also provides a method for designing the CD-ROM structure, which comprises the following steps:
step S101: the stress analysis is carried out on the mass ball, which comprises the following steps: elastic optical fiber rope tension F l Tension F of spring s Damping force F of mass ball in motion process d And the gravity mg of the mass ball, and calculating the shrinkage strain x of the elastic optical fiber rope in the illumination area and the non-illumination area 2 (t)，x 1 (t); from this, the formula is derived by the momentum moment theorem:
wherein ,J1 ＝m(l 0 +x 1 ) 2 ，J 2 ＝m(l 0 +x 2 ) 2 ；
c-damping coefficient, included angle of theta-elastic optical fiber rope horizontal plane, l 0 -the distance of the initial position of the mass ball from the centre of the rotation axis; m-mass of the mass sphere;
and simplifying the formula to obtain a control equation formula of the quality ball:
step S102: determining the relation between the optical drive shrinkage strain epsilon (t) of the elastic optical fiber rope and the number fraction phi (t) of cis-isomer in the liquid crystal elastomer;
the quantitative fraction evolution of the cis-isomer is described using the following formula:
solving the formula to obtain a quantity fraction formula, and deducing the quantity fraction formula in the illumination area and the quantity fraction formula in the non-illumination area according to the quantity fraction formula;
substituting the illumination area number fraction formula and the non-illumination area number fraction formula into a control equation formula of the quality ball to obtain a control equation of the quality ball in the motion process;
step S103: simplifying the control equation of the mass ball obtained in the step in the motion process by defining a part of dimensionless parameters, so as to obtain a dimensionless motion control equation of the mass ball; the following dimensionless parameters are defined:
will be elastic lightShrinkage strain x of fiber ropes in illumination area and non-illumination area 2 (t)，x 1 (t) formulating the quantitative fraction evolution of cis-isomer into a dimensionless form:
substituting the dimensionless formula into a control equation formula of the mass sphere can simplify the motion control equation of the mass sphere, so that the dimensionless motion control equation of the mass sphere can be obtained:
wherein ,
and is also provided with
0.08-1%>
50-110%>
2-8%>
0.03-1%>
1 to 6%>
Is in the range of 200 to 240 percent,
0.08-1%>
6 to 10%>
0 to 0.1, C 0 0.08 to 0.5, theta 0 Is 0.4 pi to 0.8 pi.
Preferably, in step S101, the shrinkage strain x of the elastic optical fiber rope in the illuminated area and the non-illuminated area is calculated 2 (t)、x 1 The specific steps of (t) are as follows:
calculating the tension F of the spring s And elastic fiber rope tension F l The calculation formula is as follows:
wherein ,l2 -an initial length of elastic optical fiber strand;
calculating the damping force F of the mass ball in the motion process d The calculation formula is as follows:
F d ＝cθ(l 0 +x)
wherein, the c-damping coefficient, the included angle of the horizontal plane of the theta-elastic optical fiber rope and l 0 -the distance of the initial position of the mass ball from the centre of the rotation axis;
the weight mg and the spring force of the mass ball are small and can be ignored, so the mass ball is in a balanced state at each moment in the X-axis direction, and the formula of the balance equation is as follows:
F s ＝F l
shrinkage strain x of elastic optical fiber rope in illumination area and non-illumination area 2 (t)、x 1 (t) is:
preferably, the specific step of calculating the illumination area number score formula and the non-illumination area number score formula in step S102 is as follows:
it is assumed that the optically driven contraction strain ε (t) of the elastic optical fiber strand 13 is linearly related to the number fraction of cis-isomer in the liquid crystal elastomer φ (t) as follows:
ε(t)＝-C 0 φ(t)
wherein C0 Is the coefficient of contraction;
substituting the formula into the elastic optical fiber ropes in the illumination area and the non-illumination area respectivelyShrinkage strain x 2 (t)、x 1 (t) formula, the shrinkage strain x of the elastic optical fiber rope in the illumination area and the non-illumination area 2 (t)、x 1 The formula (t) can be reduced to:
the quantitative fraction evolution of the cis-isomer is described using the following formula:
wherein T0 Thermal relaxation time from cis-state to trans-state, I 0 Is the initial light intensity, eta 0 Is the light absorption constant;
solving the number fraction formula to obtain:
wherein φ0 Is the number fraction of cis-isomer in case t=0;
in the illuminated area, an initial zero number fraction for cis-isomer, i.e.. Phi 0 =0, the above number score formula can be simplified into an illumination area number score formula, i.e.:
in non-illuminated areas, i.e. I 0 =0, the above number score formula can be reduced to a non-illuminated area number score formula, i.e.:
phi in the above formula 0 Can be set as the maximum value of phi (t) in the illumination state, namely
The above formula can be reduced to:
compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, by using the characteristic that the Liquid Crystal Elastomer (LCE) material can shrink and deform along the length direction after being irradiated, the CD-ROM structure is constructed, the CD-ROM structure can continuously rotate under the irradiation condition, the light energy is converted into mechanical energy, the parts are easy to prepare, the parts are relatively stable during movement, pollution and redundant resource waste can not be generated, and the CD-ROM structure is more energy-saving and emission-reducing.
2. The light energy conversion equipment can continuously move by utilizing the CD-ROM structure under the illumination condition, converts light energy into mechanical energy to drive the output unit to operate, fully utilizes renewable energy sources to provide energy without energy storage, directly utilizes solar energy to do work, and saves resources.
3. Compared with the traditional light energy conversion device, namely photovoltaic power generation, the power generation equipment disclosed by the invention has the advantages that the practicability is higher, for example, the preparation of parts is more green, safer and pollution-free, the service life of the equipment is longer, the maintenance and replacement of the parts are more convenient and quicker, and a part of energy lost in the storage and conversion processes can be saved; meanwhile, under the condition of proper illumination, the power generation equipment keeps continuous motion, is a brand new green power generation mode, and can achieve the effects of energy conservation and emission reduction; therefore, the power generation equipment provided by the invention achieves the effects of energy conservation and emission reduction, provides a novel light energy conversion mode, provides a feasible scheme for realizing green buildings, and has a wide application prospect in the aspect of energy conservation of future buildings.
Drawings
FIG. 1 is a schematic diagram of an optical disc drive according to a first embodiment;
FIG. 2 is a schematic view of the self-expanding unit of FIG. 1 in an initial state;
FIG. 3 is a schematic view of the self-retracting unit of FIG. 1;
FIG. 4 is a schematic diagram of an optical disc drive according to the first embodiment;
FIG. 5 is a schematic diagram of an optical disc drive according to the first embodiment;
FIG. 6 is a schematic diagram of the CD-ROM drive structure in operation;
FIG. 7 is a schematic diagram of an optical disc drive according to a second embodiment;
FIG. 8 is a schematic diagram of an optical disc drive according to the second embodiment;
FIG. 9 is a schematic diagram of the structure of the optical disc drive according to the second embodiment;
fig. 10 is a schematic structural view of a third embodiment;
FIG. 11 is a schematic view of the structure of the fifth embodiment at rest;
FIG. 12 is a schematic diagram of the arrangement of the coil assembly of the fifth embodiment;
FIG. 13 is a schematic view of the structure of the fifth embodiment;
FIG. 14 is a schematic view of the cross-sectional structure in the direction A-A of FIG. 11;
fig. 15 is a schematic structural diagram of a seventh embodiment, in which:
FIG. a is a schematic diagram of an optical disc drive structure in a non-illuminated area, and FIG. b is a schematic diagram of an optical disc drive structure in an illuminated area;
fig. 16 is a mass ball motion process image in embodiment seven, wherein:
fig. a is a schematic structural diagram of a time (history) curve, and fig. b is a schematic structural diagram of angular velocity change;
fig. 17 is a mass ball still process image, wherein:
fig. a is a schematic structural diagram of a time (history) curve, and fig. b is a schematic structural diagram of angular velocity change;
the figures represent the numbers:
11-a spring; 12-mass sphere; 13-an elastic optical fiber rope; 14-initial position of the mass ball; 21-transparent tubing; a 23-connecting ring; 24-a central disc; 25-center axis; 26-a light shielding plate; 31-a first external ring gear; 32-a second outer ring gear; 33-fan blades; 34-a rotation axis; 41-coil groups; 42-permanent magnets; 43-wire.
Detailed Description
The above and further technical features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.
Example 1
The embodiment provides a technical scheme: an optical drive structure converts optical energy into mechanical energy by the photo-induced deformation characteristics of a photo-responsive material. The elastic optical fiber rope 13 made of a Liquid Crystal Elastomer (LCE), liquid crystal elastomer) material is mainly used, and the Liquid Crystal Elastomer (LCE) material is rapidly contracted and deformed along the length direction thereof after being irradiated with light, and accordingly, the surface of the elastic optical fiber rope 13 made of the Liquid Crystal Elastomer (LCE) material is contracted along the length direction thereof after not being irradiated with light, so that the length is reduced.
As shown in fig. 1, the present embodiment includes a light responsive expansion member, a central disk 24, a central shaft 25, an illumination zone and a connection ring 23; the two ends of the light response expansion and contraction are respectively fixed with the central disk 24 and the connecting ring 23, the connecting ring 23 has the function of connecting the outer ends of the light response expansion and contraction parts to ensure the overall stability, the central disk 24 is rotationally connected with the central shaft 25, the central shaft 25 can be connected with an external structure to play a role of supporting integral equipment, the illumination area is positioned at one side of the central disk 24 in the horizontal direction to ensure that the light response expansion and contraction parts enter the illumination area and are positioned at two sides of the central disk 24, the light response expansion and contraction parts are sent to deviate by gravity center, so that the gravity center of the whole CD-ROM structure is driven to deviate, and the illumination area takes the center of the central disk 24 as a base point;
the number of the light response telescopic members is at least two, the annular arrays of the light response telescopic members are uniformly distributed and fixed on the outer side of the central disc 24, and the included angles of the illumination areas are as follows: (360/a) deg. to 180 deg., where a is the number of light responsive retractors, e.g., 4, the included angle of the illuminated area is: when the number of the light response telescopic pieces is 6 at 90 degrees to 180 degrees, the included angle of the illumination area is as follows: 60-180 degrees, so as to ensure that the number of light response telescopic pieces in the illumination area is not less than 1 during operation, and ensure that the CD-ROM structure can continuously operate.
A shade 26 is provided on the side of the central plate 24 near the sun exposure, and in order to reduce the change of the sun exposure angle due to the time lapse in the illumination area, the shade 26 needs to be attached to the light response expansion member as much as possible. A sector-shaped notch is formed in the light shielding plate 26, when sunlight irradiates the light shielding plate 26, the area shielded by the light shielding plate 26 is a non-illumination area, the area passing through the sector-shaped notch is an illumination area, and the included angle of the sector-shaped notch is matched with the included angle of the illumination area.
As shown in fig. 1 to 5, the light-responsive telescopic member includes a transparent duct 21 and a self-telescopic unit provided inside thereof, the self-telescopic unit including an elastic optical fiber rope 13, a mass ball 12, and a spring 11; the inner diameter of the transparent pipe 21 is slightly larger than the diameter of the mass ball 12 so as to ensure that the self-telescoping unit can move in the pipe direction in the transparent pipe 21; when the light response expansion piece is positioned in a non-illumination area, the elastic optical fiber rope 13 cannot deform, the whole structure is kept in a static state, and because the tension of the spring 11 generated by the gravity of the mass ball 12 is far smaller than the tension of the spring 11 generated by the shrinkage of the elastic fiber rope and can be ignored, the influence of the gravity of the mass ball 12 on the length of the spring 11 is not considered, and when the whole optical drive structure is not illuminated, the optical drive structure is positioned in a balance state and can break balance only by a little disturbance (eccentric moment).
When the elastic optical fiber rope 13 is positioned in the illumination area, the elastic optical fiber rope 13 will deform, the length is shortened, the deformation capability of the Liquid Crystal Elastomer (LCE) material is stronger and can reach about 50% at most, so that relatively larger driving moment can be provided, the mass ball 12 can be pulled to one side of the elastic optical fiber rope 13, the balance state of the whole optical drive structure is broken, the spring 11 is also lengthened, and the tension F of the spring 11 is increased s Tension force F of elastic optical fiber rope 13 l When in balance, the mass ball 12 is kept still, and the influence of the mass ball 12 on the balance is not considered because the self gravity of the mass ball 12 is far smaller than the rigidity of the spring 11 and the elastic optical fiber rope 13; when the integral structure of the elastic optical fiber rope 13 enters the non-illumination area from the illumination area, the elastic optical fiber rope 13 will return to the original length while the mass ball 12 is also under tension F of the spring 11 s Is moved to the initial position and eventually the mass ball 12 will return to the initial position and remain balanced.
As shown in FIG. 6, in the absence of illumination, the initial position 14 of both of the mass balls 12 is at a distance l from the center of the rotational axis 34 0 Namely, the mass ball 12 is positioned at the initial position 14 of the mass ball, the moment generated by the gravity of the mass ball 12 on the center of motion is the same, and the structure is kept in a static state; when the transparent pipeline 21 is illuminated, the elastic optical fiber rope 13 contracts to drive the spring 11 to extend, and the extension is marked as X (t) If the moment M is generated by the gravity mg of the mass ball 12 in the transparent pipeline 21 in the illumination area 1 ＝mg·(l 0 +X (t) ) Greater than the moment M generated by the mass of the mass sphere 12 in the non-illuminated region 2 ＝mg·l 0 And friction resistance moment, it is impossible to keep the static state, and the rotation is necessarily continued. Under load operation, the criterion of continuous rotation of the structure is as follows: the moment generated by the mass balls 12 in the transparent tube 21 in the illuminated area is greater than the sum of the movement moment, friction resistance moment and load moment generated by the mass balls 12 in the non-illuminated area.
In the embodiment, the number of the adopted light response telescopic members is 2, namely the angle of the first light response telescopic member and the second light response telescopic member is 180 degrees, so that the number of the transparent pipelines 21 in the illumination area is always more than or equal to 1; taking the case that the illumination area is arranged at the 180-degree area position of the right part of the device as an example, after the transparent pipeline 21 enters the illumination area, the length of the elastic optical fiber rope 13 made of Liquid Crystal Elastomer (LCE) material is shortened after the elastic optical fiber rope enters the illumination area, the mass ball 12 is pulled towards the direction of the elastic optical fiber rope 13, and the mass ball 12 pulls the spring 11 to pull force F s And the tension F of the elastic optical fiber rope 13 l The mass ball 12 in the right first light response expansion piece is farther from the center of the circle than the mass ball 12 in the left second light response expansion piece; the whole structure starts to rotate clockwise under the effect of the eccentricity generated by the different gravity center positions of the two mass balls 12; after the mass ball 12 in the first light responsive expansion member moves out of the illumination zone, the elastic fiber optic strand 13 thereof will gradually recoverAnd the mass ball 12 returns to the initial position 14 of the mass ball under the action of the tension force of the spring 11, at the moment, the whole structure can rotate a certain angle due to the influence of inertia, the second light response expansion piece enters the illumination area, the elastic optical fiber rope 13 in the second light response expansion piece can shrink, and the mass ball 12 deflects in relay.
In the present invention, since the tension of the spring 11 due to the gravity of the mass ball 12 is much smaller than the tension of the spring 11 due to the shrinkage of the elastic fiber cord, only the moment generated by the gravity of the mass ball 12 is considered without considering the influence thereof on the tension of the spring 11. In this way, under ambient stable lighting conditions, the Liquid Crystal Elastomeric (LCE) material can stably absorb energy from the external environment, counteracting air friction damping and energy consumed during collisions to maintain stable motion of the device.
The present invention proposes techniques and devices that utilize conversion of optical energy into mechanical energy; the equipment is easy to prepare, is stable in movement, does not produce pollution and redundant resource waste, and is more energy-saving and emission-reducing.
Example two
The present embodiment is further optimized based on the first embodiment, and the same parts as the foregoing technical solutions will not be described herein, as shown in fig. 7-9, further for better implementing the present invention, particularly the following arrangement mode is adopted: two light response telescopic members are added on the basis of the first embodiment, so that the four light response telescopic members are distributed in a uniform annular array, namely, the angle of an illumination area is 90-180 degrees; this ensures that at least one light responsive telescoping member is in motion in the illuminated area at any time. Meanwhile, compared with the design of two light response telescopic members, the design of four light response telescopic members has the advantages that the number of the quality balls 12 in the illumination area is increased, the integral rotating speed of the device can be effectively improved, so that the light-mechanical energy conversion efficiency is improved, the structure is more stable, and the structure is more convenient to control during operation.
Example III
The embodiment provides a technical scheme: the light energy conversion device is characterized in that a gear structure is added outside the connecting ring 23 on the basis of the first embodiment or the second embodiment, and the whole device is formed into a gear part; and then, the mechanical energy converted from the light energy is converted and utilized by connecting other gear structures to serve as a power source to output power.
As shown in fig. 10, the present embodiment includes the optical disc drive structure of the above embodiment, wherein a first outer gear ring 31 is fixed on one side of a central disc 24 of the optical disc drive structure, and then the first outer gear ring 31 is connected with a second outer gear ring 32 to form a transmission device, so as to drive an output unit to rotate and operate; in order to reduce the torque, the gear transmission structure is made of light plastic, the weight is light, the two outer gear rings are used for transmission, the quality can be reduced as much as possible while smooth transmission is ensured, the torque is reduced, the center position of the second outer gear ring 32 is fixed on the rotating shaft 34 by using a connecting rod, and the output unit is arranged on the rotating shaft 34 and takes the fan blade 32 as an example.
The specific implementation scheme of the example is as follows: after the optical drive structure starts to rotate, the transmission device moves, and at the moment, the optical drive structure becomes an engine to drive the output unit to rotate. Thereby realizing reasonable conversion of mechanical energy. In this way, in the case of a stable external environment, the elastic optical fiber rope 13 made of a Liquid Crystal Elastomer (LCE) material can stably absorb energy from the external environment, counteracting air friction damping and energy consumed during collision to maintain stable movement of the device.
The implementation provides a reasonable mechanical energy conversion form; the CD-ROM structure is equivalent to an engine, and the output unit is not limited to a fan; when the equipment is prepared, the transmission efficiency can be adjusted by adjusting the gear parameters of the gear transmission structure and the number of the light response telescopic pieces in the running process of the CD-ROM structure and adjusting the angle range of the illumination area.
The preparation method has the advantages that the cost is low, and the number of selectable equipment forms is large; meanwhile, the invention is relatively stable in motion, the energy consumption of the running mode of gear transmission is small, the efficiency problem of an engine is improved, and the service life of equipment is prolonged; and the parts of the invention are easy to prepare and convenient to replace, so that the usability of the invention is further improved.
Example IV
The embodiment provides a technical scheme: the method of installing the light energy conversion device in the third embodiment, as shown in fig. 10, includes the steps of:
s1, sequentially connecting a spring 11, a mass ball 12 and an elastic optical fiber rope 13, connecting a self-telescopic unit into a corresponding transparent pipeline 21, fixing the spring 11 and the elastic optical fiber rope 13 with the inner end parts of the transparent pipeline 21 respectively, and then installing the transparent pipeline 21 between a central disc 24 and a connecting ring 23;
s2, installing a first outer gear ring 31 outside the connecting ring 23 according to the need;
s3, adjusting the positions and the sizes of the illumination area and the non-illumination area and the number of the CD-ROM structures according to the design requirement, and installing the CD-ROM structures to the designated positions;
s4, connecting the installed CD-ROM structure with a plurality of other parts through gears to form a transmission mechanism integrally, and arranging the installed structure in the enclosure structure to form the third embodiment of the invention, wherein the transparent enclosure structure can be made of light-transmitting materials such as glass, films and the like so as to facilitate smooth illumination to the CD-ROM structure;
s5, connecting the transmission mechanism in S4 with an output unit needing transmission, when the optical drive structure is in illumination, the optical drive structure as a whole starts to rotate, and the first outer gear ring 31 outside the connecting ring 23 drives the second outer gear ring 32 to rotate, so that the whole transmission mechanism starts to operate; the output unit is driven by the transmission mechanism to start working, in this embodiment, the output unit is a fan blade 32, and when the optical drive structure is running, the fan blade 32 starts to move, and negative pressure is generated, so that air flow is formed.
Example five
The embodiment provides a technical scheme: the power generation device is added with the coil groups 41 and the permanent magnets 42 on the basis of the first embodiment or the second embodiment, so that when the CD-ROM structure rotates, each coil group 41 cuts the magnetic induction lines generated by the permanent magnets 42, thereby generating electric energy and achieving the effect of light energy-mechanical energy-electric energy conversion.
As shown in fig. 11-14, in this embodiment, a plurality of coil groups 41 are uniformly installed inside a central disk 24, a plurality of coil groups 41 are uniformly distributed in an annular array, two permanent magnets 42 with bar-shaped structures connected by a central shaft 25 are installed in front of and behind the left half part of the device, the permanent magnets 42 are staggered from an illumination area, normal illumination affecting the illumination area is avoided, the permanent magnets 42 are fixed with the central shaft 25, and meanwhile, the outer ends of the two permanent magnets 42 are fixed by connecting blocks; the coil assembly 41 is connected in parallel to the central shaft 25 by a wire 43, and then externally connected with a storage battery or an external electricity utilization structure. When the device enters the illumination area to start moving, the coil groups 41 also rotate, and each coil group 41 moves vertically by cutting the magnetic induction line when passing through the magnetic field generated by the permanent magnet 42, so that induced current is generated, transmitted to the central shaft 25 by each wire 43, transmitted by the total wire 43, and stored in an external storage battery or used by external electric equipment. Thus, the present embodiment can be regarded as one power generation apparatus, and the power generation efficiency can be adjusted by changing various parameters, the number of the coil groups 41, the size of the magnets, and the like.
In the embodiment, the optical drive structure converts optical energy into mechanical energy and then converts the mechanical energy into electric energy; compared with the defects of high cost and large pollution in the preparation of the traditional photovoltaic power generation equipment, the invention has the advantages of convenient preparation of parts, lower cost and no pollution. Because of the characteristics of easy preparation of equipment parts, low cost and long service life, the stability and durability of the embodiment are far better than those of the traditional photovoltaic power generation equipment; meanwhile, parts are more convenient to replace, and compared with the traditional photovoltaic power generation equipment, the photovoltaic power generation equipment is damaged at one place and needs to be replaced completely, the photovoltaic power generation equipment is higher in practicality and lower in equipment maintenance cost. Secondly, the traditional photovoltaic power generation mainly utilizes a photovoltaic inverter to generate power, the photoelectric conversion efficiency is not stable enough in the use process, the lead emission and potential toxicity in the life cycle of the lead halide perovskite photovoltaic cell are suspected in large-scale application, the invention mainly uses a photoresponsive material to generate power, and the rotation rate and the like of equipment can be properly regulated so as to achieve the optimal power generation efficiency ratio; meanwhile, the device of the embodiment has no pollution in the operation process, is a brand new green power generation mode, and can achieve the effects of energy conservation and emission reduction.
Example six
The embodiment provides a technical scheme: the installation method of the power generation apparatus in the fifth embodiment, as shown in fig. 11 to 14, includes the steps of:
s1, connecting a spring 11, a mass ball 12 and an elastic optical fiber rope 13, connecting a self-telescopic unit into a corresponding transparent pipeline 21, and fixedly installing the transparent pipeline 21 in a connecting ring 23 according to a designed position; a circle of gear structure is arranged outside a connecting ring 23 of the self-telescopic unit of the equipment according to the need, and the installation position is determined according to the position and the size of a shading area required to be adjusted by design;
s2, uniformly arranging a plurality of coil groups 41 in a central disc 24, and connecting the coil groups to a central shaft 25 in parallel by using wires 43, wherein a main wire 43 at the joint of the central shaft 25 is connected with an external storage battery or electric equipment; a permanent magnet 42 with the same size and the same magnetic pole position is respectively arranged at the front and the rear of the left half part of the connecting ring 23, one end of the permanent magnet 42 is connected and fixed to the central shaft 25, and the other end of the permanent magnet 42 is connected and fixed with the two permanent magnets 42 by using a connecting block;
s3, fixing the CD-ROM structure arranged in the S2 on a mounting frame, and arranging the mounted structure in the enclosure structure to form a fifth embodiment of the invention, wherein the transparent enclosure structure can be made of light-transmitting materials such as glass, films and the like;
s4, fixedly arranging the fifth embodiment of the invention in S3 on the inner surface or the outer surface of the building enclosure structure through welding or bolts, and adjusting the size of a shading area, the number of coil groups 41, the number of transparent pipelines 21 and the number of the invention foundation structure according to the intensity of illumination at the arranged position; if the amount of electricity used is large, the number of coil groups 41 and the number of transparent pipes 21 may be increased as needed.
Example seven
The embodiment provides a technical scheme: a design method for designing an optical disc drive structure according to the first or second embodiments, as shown in fig. 15-17, includes the following steps:
determining the initial position of the mass ball 1214, determining the distance l from the center of the rotation axis 34 0 Initial length l of spring 11 1 Initial length l of elastic optical fiber rope 13 2 An included angle theta with the horizontal plane; when the transparent duct 21 is at the initial angular velocity ω 0 After entering the illumination area, the elastic optical fiber rope 13 contracts, and the tension F generated by the mass ball 12 on the elastic optical fiber rope 13 l The optical disc drive is moved to one side of the elastic optical fiber rope 13 by a distance x (t), and at the moment, an eccentric moment is generated, and the whole optical disc drive structure starts to rotate.
Step S101, measuring the mass m of the mass ball 12 and the cross-sectional area A of the elastic optical fiber rope 13 and the spring 11 l 、A s Determining the elastic modulus E of the elastic optical fiber rope 13 and the spring 11 l 、E s The optical drive contraction strain epsilon (t) and the damping coefficient c of the photoelastic optical fiber rope, and thereby determine the tensile force F to which the mass ball 12 is subjected s 、F l Damping F d Shrinkage strain x of elastic optical fiber strand 13 in illuminated and non-illuminated areas 2 (t)、x 1 And (t) obtaining a control equation of the movement of the mass ball 12 when the turntable rotates.
(1) Tension F of elastic optical fiber rope 13 and spring 11 l 、F s Calculated according to equation (1), equation (1) is as follows:
damping force F of mass ball 12 during movement d Calculated according to equation (2), equation (2) is as follows:
F d ＝cθ(l 0 +x) (2)
the mass ball 12 is subjected to four forces during movement, the spring forces F in the springs respectively s Spring force F in Liquid Crystal Elastomer (LCE) l Gravity mg of the mass ball 12 itself and damping force F d . The weight mg and the spring force to which the mass ball 12 is subjected are small and negligible, so the mass ball is in a balanced state at every moment in the X-axis direction (i.e., the axis direction of the transparent pipe 21), and the equation of balance (3) is as follows:
F s ＝F l (3)
shrinkage strain x of elastic optical fiber cord 13 in illuminated and non-illuminated areas 2 (t)、x 1 (t) is obtained according to the formulas (4) and (5), and the formulas (4) and (5) are as follows:
from this, equation (6) is obtained by the momentum moment theorem, and equation (6) is as follows:
wherein ,J1 ＝m(l 0 +x 1 ) 2 ，J 2 ＝m(l 0 +x 2 ) 2 。
And (3) simplifying the formula (6) to obtain a control equation formula (7) of the mass sphere 12, wherein the formula (7) is as follows:
step S102, the control equation of the mass sphere 12 is further simplified by determining the relation between the optical driving contraction strain epsilon (t) of the elastic optical fiber rope 13 and the number fraction phi (t) of cis-isomers in the liquid crystal elastomer (assuming that the two are in a linear relation);
assuming that the optically driven contraction strain ε (t) of the elastic optical fiber rope 13 is linearly related to the number fraction of cis-isomer φ (t) in the liquid crystal elastomer, as shown in equation (8):
ε(t)＝-C 0 φ(t) (8)
wherein C0 Is the coefficient of contraction.
Substituting formula (8) into formulas (4) and (5) respectively, the formulas (4) and (5) can be simplified as:
describing the number fraction evolution of the cis-isomer using equation (11), equation (11) is as follows:
wherein T0 Thermal relaxation time from cis-state to trans-state, I 0 Is the initial light intensity, eta 0 Is the light absorption constant.
Jie Gong formula (11) gives the quantitative score formula (12):
wherein φ0 Is the number fraction of cis-isomer in the case of t=0.
In the illuminated area, an initial zero number fraction for cis-isomer, i.e.. Phi 0 =0, equation (12) can be reduced to the illumination zone number score equation, namely:
in non-illuminated areas, i.e. I 0 =0, equation (12) can be reduced to a non-illuminated area number score equation, i.e.:
phi in formula (14) 0 Can be set as the maximum value of phi (t) in the illumination state, namely
Equation (14) can be reduced to: />
Substituting the formulas (13) and (15) into the formula (7) to obtain a control equation of the mass ball 12 in the motion process;
step S103, simplifying the control equation obtained in the step by defining a part of dimensionless parameters, thereby obtaining the dimensionless motion control equation of the mass ball 12. Here, the following dimensionless parameters are defined:
Equations (4), (5), (11) can be put into a dimensionless form:
finally, substituting the above non-dimensionalized formula into formula (7) can simplify to obtain a motion control equation (19) with non-dimensionalized mass sphere 12, wherein formula (19) is as follows:
wherein ,
the dimensional parameters in this embodiment are shown in the table:
the dimensionless parameters in this embodiment are shown in the table:
when in manufacture, the corresponding dimensionless parameters are regulated according to the requirements of projects and the illumination conditions of the installation area, the required CD-ROM structure is manufactured, and various attributes such as the rotation speed of the CD-ROM structure are controlled.
The foregoing description of the preferred embodiment of the invention is merely illustrative of the invention and is not intended to be limiting. It will be appreciated by persons skilled in the art that many variations, modifications, and even equivalents may be made thereto without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. An optical drive structure, characterized in that: the device comprises a light response expansion piece, a central disc and an illumination area; the number of the light response telescopic pieces is at least two, the annular arrays of the light response telescopic pieces are uniformly distributed and fixed on the outer side of the central disk, the illumination area is positioned on one side of the central disk in the horizontal direction, the illumination area takes the center of the central disk as a base point, and the central angle of the illumination area is less than 180 degrees; the optical response telescopic parts move to the illumination area, the gravity centers of the optical response telescopic parts are radially deviated, the gravity centers of the whole optical drive structure are deviated along with the radial deviation, the central disc rotates, and a plurality of optical response telescopic parts sequentially enter the illumination area along with the rotation of the central disc, so that the central disc continuously rotates.
2. The optical disc drive structure of claim 1, wherein the light responsive telescoping member comprises a transparent tube, a spring, a mass ball and an elastic optical fiber cable; the two ends of the transparent pipeline are respectively fixed with the central disc and the connecting ring, the spring, the quality ball and the elastic optical fiber rope are sequentially fixed from inside to outside and are arranged in the transparent pipeline, the inner end of the spring is fixed with the central disc, the elastic optical fiber rope is fixed with the connecting ring and is made of a liquid crystal elastomer material, the elastic optical fiber rope can shrink when being irradiated by an illumination area, and the quality ball can be pulled along the radial direction of the central disc, so that the center of gravity of the CD-ROM structure is deviated; and the elastic optical fiber rope is restored to the original state when moving out of the illumination area, and the quality ball returns to the initial position due to the elasticity of the spring.
3. The optical disc drive structure of claim 1, further comprising a connection ring and a central shaft, wherein the outer end of the light responsive telescopic member is fixed to the inner wall of the connection ring, and the central shaft is rotatably connected to the central disc.
4. The optical disc drive structure according to claim 1, further comprising a light shielding plate, wherein the light shielding plate is disposed on one side of the central disc near the sunlight irradiation, a fan-shaped notch is formed on the light shielding plate, when the sunlight irradiates the light shielding plate, a region covered by the light shielding plate is a non-illumination region, an illumination region passes through the fan-shaped notch, and an included angle of the illumination region is: (360/a) degrees-180 degrees, wherein a is the number of light responsive retractors; the included angle of the sector-shaped notch is matched with the included angle of the illumination area.
5. An optical energy conversion device comprising an optical drive structure as claimed in any one of claims 1 to 4, a gear transmission structure and an output unit; the gear transmission structure is used for connecting the CD driver structure with the output unit and driving the output unit to rotate.
6. A light energy converting device as recited in claim 5, wherein said gear drive comprises a first external gear ring and a second external gear ring; the first outer gear ring is fixed on one side of the central disc, a rotating shaft is fixed at the central position of the second outer gear ring, and the output unit is arranged on the rotating shaft.
7. A power generation device comprising an optical drive structure according to any one of claims 1-4, a plurality of coil sets and two permanent magnets; the coil groups are distributed in the center disc through an annular array, the two permanent magnets are symmetrically arranged on the front side and the rear side of the CD-ROM structure, and the power transmission ends of the coil groups are connected with an external storage battery or an external power utilization device through wires; when the coil group passes through the magnetic field of the permanent magnet, the coil group moves to vertically cut the magnetic induction line to generate induction current, the induction current is transmitted to an external storage battery or an external power utilization device by using a lead, the permanent magnet is fixed on a central shaft, and the two permanent magnets are connected and fixed by using a connecting block.
8. A method for designing an optical disc drive structure according to any one of claims 1-4, comprising the steps of:
step S101: the stress analysis is carried out on the mass ball, which comprises the following steps: elastic optical fiber rope tension F l Tension F of spring s Damping force F of mass ball in motion process d And the gravity mg of the mass ball itself toCalculating shrinkage strain x of the elastic optical fiber rope in the illumination area and the non-illumination area 2 (t)，x 1 (t); from this, the formula is derived by the momentum moment theorem:
wherein ,J1 ＝m(l 0 +x 1 ) 2 ，J 2 ＝m(l 0 +x 2 ) 2 ；
c-damping coefficient, included angle of theta-elastic optical fiber rope horizontal plane, l 0 -distance of the initial position of the mass sphere from the centre of the rotation axis, m-mass of the mass sphere;
and simplifying the formula to obtain a control equation formula of the quality ball:
step S102: determining the relation between the optical drive shrinkage strain epsilon (t) of the elastic optical fiber rope and the number fraction phi (t) of cis-isomer in the liquid crystal elastomer;
the quantitative fraction evolution of the cis-isomer is described using the following formula:
solving the formula to obtain a quantity fraction formula, and deducing the quantity fraction formula in the illumination area and the quantity fraction formula in the non-illumination area according to the quantity fraction formula;
substituting the illumination area number fraction formula and the non-illumination area number fraction formula into a control equation formula of the quality ball to obtain a control equation of the quality ball in the motion process;
step S103: the control equation of the mass ball obtained in the steps in the motion process is simplified by defining a part of dimensionless parameters, so that the mass ball is obtainedA non-dimensionalized motion control equation; the following dimensionless parameters are defined:
shrinkage strain x of elastic optical fiber rope in illumination area and non-illumination area 2 (t)，x 1 (t) formulating the quantitative fraction evolution of cis-isomer into a dimensionless form:
substituting the dimensionless formula into a control equation formula of the mass sphere can simplify the motion control equation of the mass sphere, so that the dimensionless motion control equation of the mass sphere can be obtained:
wherein ,
and is also provided with
0.08-1%>
50-110%>
2-8%>
0.03-1%>
1 to 6%>
200-240%>
0.08-1%>
6 to 10%>
0 to 0.1, C 0 0.08 to 0.5, theta 0 Is 0.4 pi to 0.8 pi.
9. The method of claim 8, wherein the step S101 is performed to calculate the shrinkage strain x of the elastic fiber rope in the illuminated area and the non-illuminated area 2 (t)、x 1 The specific steps of (t) are as follows:
calculating the tension F of the spring s And elastic fiber rope tension F l The calculation formula is as follows:
wherein ,l2 -initial length of elastic fiber optic strand, and l 2 0.02m;
calculating the damping force F of the mass ball in the motion process d The calculation formula is as follows:
F d ＝cθ(l 0 +x)
wherein, the c-damping coefficient, the included angle of the horizontal plane of the theta-elastic optical fiber rope and l 0 -the distance of the initial position of the mass ball from the centre of the rotation axis;
the weight mg and the spring force of the mass ball are small and can be ignored, so the mass ball is in a balanced state at each moment in the X-axis direction, and the formula of the balance equation is as follows:
F s ＝F l
shrinkage strain x of elastic optical fiber rope in illumination area and non-illumination area 2 (t)、x 1 (t) is:
10. the method for designing an optical disc drive structure according to claim 8, wherein the calculating of the illumination area number score formula and the non-illumination area number score formula in step S102 comprises the following specific steps:
it is assumed that the optically driven contraction strain ε (t) of the elastic optical fiber strand 13 is linearly related to the number fraction of cis-isomer in the liquid crystal elastomer φ (t) as follows:
ε(t)＝-C 0 φ(t)
wherein C0 Is the coefficient of contraction;
substituting the above formula into the shrinkage strain x of the elastic optical fiber rope in the illumination area and the non-illumination area respectively 2 (t)、x 1 (t) formula, the shrinkage strain x of the elastic optical fiber rope in the illumination area and the non-illumination area 2 (t)、x 1 The formula (t) can be reduced to:
the quantitative fraction evolution of the cis-isomer is described using the following formula:
wherein T0 Thermal relaxation time from cis-state to trans-state, I 0 Is the initial light intensity, eta 0 Is the light absorption constant;
and T is 0 1 to 100ms, eta 0 Is 0.005m 2 /(s·W)；
Solving the number fraction formula to obtain:
wherein φ0 Is the number fraction of cis-isomer in case t=0;
in the illuminated area, an initial zero number fraction for cis-isomer, i.e.. Phi 0 =0, the above number score formula can be simplified into an illumination area number score formula, i.e.:
in non-illuminated areas, i.e. I 0 =0, the above number score formula can be reduced to a non-illuminated area number score formula, i.e.:
phi in the above formula 0 Can be set as the maximum value of phi (t) in the illumination state, namely
The above formula can be reduced to:
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