CN1173619A

CN1173619A - Solar-energy directly utilizing appts.

Info

Publication number: CN1173619A
Application number: CN97116788A
Authority: CN
Inventors: 冯继宏
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-08-21
Filing date: 1997-08-21
Publication date: 1998-02-18

Abstract

A light and thin two-component optical lens array is used to converge sunlight into large-aperture multi-mode optical fibres for transmission of converged light. A two-component optical device at the end of multi-mode optical fibre array is used to converge the transmitted light, which is then introduced to and stored in a huge full-reflecting spherical cavity. The optical energy stored in the spherical cavity can be transmitted via other multi-mode optical fibres to destination for directly application, such as lighting, heating, or generation electricity.

Description

The direct use device of sun power

Patent of the present invention relates to a kind of solar device that directly utilizes.

The energy from the sun is the topmost energy sources of the earth, and sun power enriches, cleans, is not subjected to your control and monopolization, is the desirable energy of the human energy crisis of a kind of eternal solution.But sun power also has weak point, and density is low, and floor area is big, and investment is big, and solar radiation is subjected to the influence of factors such as weather, season, longitude and latitude, and daytime, supply was unstable, collect night less than.Current, sun power utilizes mode mainly to divide two classes: non-spotlight mode and light collecting.Non-spotlight mode cumulative metric density is low, and application is limited, light collecting cumulative metric density height, and potential range of application is wide.But solar collecting device can only utilize in collection place, and because gathering-device or volume is too small and power is little, the perhaps excessive complex structure of volume, and transportation inconvenience, thus cause the sun power utilization to be very limited.

The purpose of patent of the present invention is to make solar energy collecting structure simple, efficient, collect sun power and can effectively be input to storage stably in the container, be transferred to the place that needs energy with certain power again, be directly used in heating, heating, refrigeration, daylighting and convert photovoltaic electric energy etc. to.

Patent of the present invention is a kind of solar device that directly utilizes, the slim lens that utilize the diffraction optics principle to make arrive its focus place with solar-energy collecting, by multimode optical fiber restriction that is positioned over this focus place and the luminous energy that transmission has been assembled, it is big as much as possible that the optical wavelength range that the luminous energy of having assembled for transmission as much as possible requires multimode optical fiber to transmit covers the solar radiation spectral range and the numerical aperture that arrive ground.Place the input multimode optical fiber on the fixed mount to be fixed on the huge ball cavity outer wall, it is frosted glass that a random phase plate that is coated with anti-reflection film is placed in the multimode optical fiber front, make the incident light generation diffuse scattering of multimode optical fiber transmission, luminous energy is bound in repeatedly reflection in the container like this, has stored luminous energy.Place the multimode optical fiber of the large-numerical aperture that some light energy outputs use on the ball cavity wall, the luminous energy of storage is as required by the direct transmission destination of these multimode optical fibers, direct illumination, directly heats or converts photovoltaic electric energy etc. to and directly utilize.Owing to be not converted into other energy from the luminous energy of solar radiation but directly utilize, its superiority is not only to have utilized abundant, the free of contamination advantage of sun power but also has improved the utilization ratio of sun power.

Fig. 1 is the installation drawing that the embodiment that directly utilizes as collection, input, storage sun power is described,

Fig. 2 is a sectional view of gathering the binary optical lenses of sunshine,

Fig. 3 is the sectional view that stores the huge ball chamber of sun power,

Fig. 4 is the sectional view of multimode optical fiber as transmission medium,

Fig. 5 is the sectional view of random order phase-plate.

In Fig. 1; label 1 is a transparent sealed cover; the 2nd, the binary optical lenses array; the 3rd, binary optical lenses array fixed mount; the 4th, azimuth sensor; the 5th, the multimode fiber array fixed mount; the 6th, place multimode fiber array on the binary optical lenses focus by light-receiving end; the 7th, pulse motor; the 8th, by the feathering axis of pulse motor 7 drivings; the 9th, by pulse motor 10 driven vertical turning axles; the 10th, pulse motor; the 11st, be used for the bearing of supporting protection seal closure 1; the 12nd, the multimode optical fiber of the large-numerical aperture of the solar energy that transmission is assembled; the 13rd, design different light waves is converged to expeditiously binary optical device on the random order phase-plate; 14 is fixed mounts of the binary optical device shown in 13; the 15th, as the frosted glass of random phase plate; the 16th, the huge ball chamber of storage sun power; the 17th, to the water delivering orifice of the ball chamber water-cooled that stores sun power; the 18th, the water inlet of water-cooled; the 19th, be used for supporting and protect the soil in the ball chamber 16 that stores luminous energy, the 20th, the multimode optical fiber of the large-numerical aperture of output sun power.

Utilize azimuth sensor 4 to survey the orientation of the sun, and according to the

pulse motor

7 and 10 that plays detectable signal difference controlling level and vertical

rotating shaft

8 and 9, so that sunshine impinges perpendicularly on the binary optical lenses 2 all the time, and the solar energy of assembling by binary optical lenses array 2, via the fiber end face that places each lens focus place, be introduced in the input multimode optical fiber 12, the output terminal of input multimode optical fiber is fixed on ball chamber 16 outer walls that store sun power together with the binary optical device 13 of assembling different light waves and frame 14 thereof, input light is converged on the frosted glass 15 as random phase plate by this binary optical device, diffuse scattering takes place, and luminous energy is bound in repeatedly reflection in the container like this.The water of certain flow flows into from water delivering orifice 17 outflows from water inlet 18 water-cooled is carried out in the ball chamber 16 (comprising the random order phase-plate) that stores luminous energy, when preventing that luminous energy density from increasing, to burning of optical surface.The luminous energy that store in this ball chamber 16 are more as required by output multimode optical fiber 20 direct transmission destinations, direct illumination, directly heat or convert photovoltaic electric energy etc. to and directly utilize.

Fig. 2 partly is simplified to the binary optical lenses of 4 steps for the curvature of effective refract light in the common lens.

Fig. 3 is the sectional view that stores the huge ball chamber of sun power, plates one deck solar radiation wavelength coverage inner total reflection film 25 on the ball cavity wall.

Fig. 4 is the sectional view of multimode optical fiber as transmission medium, outside in be respectively bigger transparent material of protective layer 30, absorption layer 31, refractive index quartzy 32 and the less transparent material quartz 33 of refractive index, optical fiber need be coupled together when growing Distance Transmission, use 34 parallel dockings of FC special joint between two sections optical fiber.

Fig. 5 is the sectional view of random order phase-plate, and sensitive surface plating anti-reflection film reduces energy loss, and the area of random order phase-plate should be as far as possible little, reducing from the probability of this outgoing luminous energy, and scatter incident light effectively again simultaneously, storage luminous energy.

Claims

1. adopt frivolous binary optical lenses to assemble sun power, it is characterized in that: the type lens can be done extremely thinly, its net thickness is only for arriving the centre wavelength of ground solar radiation spectrum, can adopt the cheap material manufacturing, as glass or plastics, produced lens radius variation range is very big, both is fit to daily life such as family and is more suitable in large-scale industrial production; Sensitive surface plating anti-reflection film reduces energy loss.

2. adopt the multimode optical fiber of large-numerical aperture to transmit the solar energy of assembling, it is characterized in that: the multimode optical fiber of large-numerical aperture allows the interior sunshine of the wavelength coverage of solar radiation with incident angle incident and low-loss ground transmission greatly; Multimode optical fiber sensitive surface plating anti-reflection film reduces energy loss.

The binary optical device placed of the end of multimode fiber array with the optical convergence of multimode fiber array transmission to the random order phase-plate, it is characterized in that: the binary optical device of design converges to different light waves on the random order phase-plate expeditiously, and this binary optical device is very easy to miniaturization and integrated.

4. go up the luminous energy of scattering in huge ball cavity wall random scatter from random order phase-plate (frosted glass), this huge ball cavity wall is coated with total reflection film, its characteristics are: compare very little from the facula area that binary optical device converges on the random order phase-plate with ball cavity wall surface area, can ignore, thereby guaranteed sunshine can be in the ball chamber repeatedly reflection and do not return and decay very for a short time from former road, can store luminous energy.Random order phase-plate sensitive surface plating anti-reflection film reduces energy loss.

5. the ball cavity wall (comprising the random order phase-plate) that stores luminous energy is carried out water-cooled, its characteristics are: when preventing that luminous energy density from increasing, to burning of optical surface.

6. the multimode optical fiber that is used for light energy output is fixed in the ball cavity wall that stores luminous energy, luminous energy is transferred to the occasion that needs various energy, and direct illumination perhaps is directly changed into heat energy and photovoltaic electric energy etc., its characteristics are: directly utilize luminous energy, and pollution-free, safe, efficient, enrich cheapness etc.Output multimode optical fiber sensitive surface plating anti-reflection film reduces energy loss.