CN201742327U - Solar energy side focusing device - Google Patents

Abstract

The utility model provides a solar energy side focusing device, which is characterized in that the device comprises a solar-cell panel and a reflector. The solar-cell panel is arranged at the side of the reflector. In the solar energy side focusing device, through changing the design structure of traditional solar energy focusing device, the solar-cell panel is arranged at the side of the reflector, thereby the device has a plurality of advantages that light is not blocked, the heat is easy to disperse, the wind drag is small, and the tracking accuracy is high and the like.

Description

A kind of solar energy side beam condensing unit

Technical field

The utility model relates to a kind of solar energy side beam condensing unit, this solar-energy light collector carries out structure of modification to traditional solar-energy light collector, solar panel is placed the side of reflector, thereby make it to have characteristics such as be not in the light, be easy to heat radiation, windage is little, belong to the solar power plant technical field.

Background technology

Solar energy is current new exploitation of energy resources and the research focus that utilizes in the technology as a kind of regenerative resource, and application has comparatively widely worldwide been arranged.Because solar panel has the high more characteristics of the irradiation strong more generating efficiency of light intensity.Therefore, a developing direction of solar energy generation technology is exactly by installing the reflector of various different structures for solar panel additional, strengthen solar panel irradiation light intensity thereby reach, improving the purpose of generating efficiency at present.

Fig. 2 is the structure chart of at present common a kind of solar-energy light collector.As shown in the figure, this solar-energy light collector is made of a parabolic shape speculum and a solar panel.The reflecting surface of this solar panel and parabolic shape speculum is oppositely arranged, and is arranged near the focus of this parabolic shape speculum.This beam condensing unit converges at the solar panel place by the optically focused effect of parabolic shape speculum with sunlight, thereby forms the high-intensity light that converges.

But there is a problem in the solar-energy light collector of this structure, be exactly solar panel be arranged on the parabolic shape speculum meet the light side, can influence the light-receiving area of speculum, therefore can not make full use of the sensitive surface of this speculum.And the back side of this structure solar panel is subjected to the sunlight direct projection, can influence the radiating effect of solar panel, also is not easy to install additional on this solar panel effective heat abstractor.

Fig. 3 is the structure chart of at present common another kind of solar-energy light collector.As shown in the figure, this solar-energy light collector is equipped with shaped form or rolls over the shape reflecting plate more around solar panel.Through reasonable structural design, make that the light that shines on this reflecting plate is reflexed on the solar panel, thereby form the high-intensity light that converges.

But the solar-energy light collector of this structure also exists some problems.Though can there be the problem of blocking reflecting plate in the structure shown in Figure 4 because of solar panel in the solar-energy light collector of this structure.But,, therefore be not easy to the solar panel heat radiation because its overall structure is a bowl type.Particularly after this device carried out overall package, the heat dissipation problem of this structure solar-energy light collector was particularly serious.In addition, because reflecting plate will reflex to sunlight on the solar panel of horizontal positioned in the solar-energy light collector of this structure, so the overall structure height can be higher relatively, so just is not easy to carry out overall package.

In view of existing problem in the above existing solar-energy light collector, we are necessary that the solar-energy light collector that designs a kind of brand new solves the problems referred to above.

Summary of the invention

The purpose of this utility model is to solve problems of the prior art, provides a kind of solar panel is placed the solar-energy light collector of the side of reflector, thereby make it to have characteristics such as be not in the light, be easy to heat radiation, windage is little.

The purpose of this utility model is achieved by following technical proposals:

A kind of solar energy side beam condensing unit is characterized in that: comprise a solar panel and a reflector; Described solar panel places the side of reflector;

This solar panel is elongated; The width of this solar panel is l ₁, solar panel and sunlight incident direction angle are β;

This reflector is made of two-layer at least reflective folding face; Every layer of reflective folding face is elongated; The angle of described each reflective folding face and sunlight incident direction is followed successively by θ _A1, θ _A2, θ _A3θ _AnThe width of described each reflective folding face is l _A1, l _A2, l _A3L _AnThe wire length on the last summit of the first reflective folding face of this reflector and the last summit of solar panel is l ₂The line on the last summit of described each reflective folding face and the last summit of solar panel and sunlight incident direction angle are α ₁, α ₂, α ₃α _n

The following formula mathematical relationship of described each parameter foundation:

$l_{\mathrm{ai}}=\frac{\sin ({\mathrm{\&alpha;}}_i-\mathrm{\&beta;})}{\sin \frac{{\mathrm{\&alpha;}}_i}{2}}\&CenterDot;{\mathrm{<figure-callout\; id="1"\; label="l"\; filenames="HSA00000083847800032.png"\; state="\{\{state\}\}">l</figure-callout>}}_1$

${\mathrm{\&theta;}}_{\mathrm{ai}}=\mathrm{\&pi;}-\frac{{\mathrm{\&alpha;}}_i}{2}$

α _i＝α _ai-1+Δθ _ai-1

${\mathrm{\&Delta;\&theta;}}_{\mathrm{ai}}=\arcsin \left[\frac{\sin ({\mathrm{\&alpha;}}_i-\mathrm{\&beta;})\&CenterDot;l_1}{l_2-\mathrm{ctg}\frac{{\mathrm{\&alpha;}}_i}{2}\&CenterDot;\sin ({\mathrm{\&alpha;}}_i-\mathrm{\&beta;})\&CenterDot;l_1}\right]$

Wherein, i represents the top-down serial number of each reflective folding face.

Described solar panel and sunlight incident direction angle are that β is between 15 ° to 75 °.

Leave the gap between described each reflective folding face.

It is stacked successively that described each reflective folding face is louvered.

Described each reflective folding face is interlaced stacked.

Side at described solar panel and reflector is provided with bracing frame; By this bracing frame solar panel and reflector are fixed.

The length of described reflector is longer than the length of solar panel.

The back side at described solar panel is provided with heat abstractor.

This solar-energy light collector also is provided with sun tracker, and this sun tracker is followed the tracks of sunlight in order to drive this solar concentrating photovoltaic power generation cell panel.

Described solar energy side beam condensing unit is placed in the packaging container; The top side of this packaging container is a transparent glass.

The beneficial effects of the utility model are: this solar energy side beam condensing unit is by placing solar panel the side of reflector, makes it have the above-mentioned plurality of advantages such as heat radiation, windage are little, tracking accuracy height that are not in the light, are easy to.

Description of drawings

Fig. 1 is a solar energy side beam condensing unit cross-sectional view;

Fig. 2 is the structure chart of at present common a kind of solar-energy light collector;

Fig. 3 is the structure chart of at present common another kind of solar-energy light collector;

Fig. 4 is the reverse reflector structure schematic diagram with gap.

Embodiment

Below in conjunction with drawings and Examples the utility model is further described.

Fig. 1 is the designed solar energy side beam condensing unit cross-sectional view of the utility model.As shown in the figure, this solar-energy light collector comprises a solar panel 1 and a reflector 2.Described solar panel 1 places the side of reflector 2.

This solar panel 1 is elongated.As shown in the figure, the width of this solar panel 1 is l ₁, solar panel 1 is β with sunlight incident direction angle.

This reflector 2 is made of two-layer at least reflective folding face a.Every layer of also elongated shape of reflective folding face A.Each reflective folding face number consecutively from top to bottom is a1, a2, a3 ... an.The angle of described each reflective folding face and sunlight incident direction is followed successively by θ _A1, θ _A2, θ _A3θ _AnThe width of described each reflective folding face is l _A1, l _A2, l _A3L _AnThe length of the line on the last summit of the first reflective folding face a1 of this reflector 2 and the last summit of solar panel 1 is l ₂The line on the last summit of described each reflective folding face a and the last summit of solar panel 1 and sunlight incident direction angle are α ₁, α ₂, α ₃α _n

Then, the structure of each reflective folding face designs with following formula in this reflector 2:

$l_{\mathrm{ai}}=\frac{\sin ({\mathrm{\&alpha;}}_i-\mathrm{\&beta;})}{\sin \frac{{\mathrm{\&alpha;}}_i}{2}}\&CenterDot;l_1---\left(1\right)$

${\mathrm{\&theta;}}_{\mathrm{ai}}=\mathrm{\&pi;}-\frac{{\mathrm{\&alpha;}}_i}{2}---\left(2\right)$

α _i＝α _ai-1+Δθ _ai-1 (3)

${\mathrm{\&Delta;\&theta;}}_{\mathrm{ai}}=\arcsin \left[\frac{\sin ({\mathrm{\&alpha;}}_i-\mathrm{\&beta;})\&CenterDot;l_1}{l_2-\mathrm{ctg}\frac{{\mathrm{\&alpha;}}_i}{2}\&CenterDot;\sin ({\mathrm{\&alpha;}}_i-\mathrm{\&beta;})\&CenterDot;l_1}\right]---\left(4\right)$

Wherein, i (i belongs to Any Digit in 1 to n) represents the top-down serial number of each reflective folding face, α ₁And l ₂The last vertex position of the first reflective folding face a1 is selected during according to design can arbitraryly determine.

Based on the solar energy side beam condensing unit of said structure, need only sunlight according to design direction incident, the sunlight of incident will be radiated at the sensitive surface of solar panel 1 uniformly through the reflective folding face reflection of each layer, thereby finishes the effect of converging of sunlight.

Because in the solar energy side beam condensing unit of this structure, solar panel 1 places the side of reflector 2.Therefore, there is not the problem that reflector 2 is subjected to light of blocking in this solar panel 1.

In addition, through our practical test, described solar panel 1 and sunlight incident direction angle are that β is preferably between 15 ° to 75 °, and the respective outer side edges of described solar panel and reflector just relatively is easy to processing and realizes.

Simultaneously, as shown in Figure 1, be provided with bracing frame 3, solar panel 1 and reflector 2 fixed by this bracing frame 3 at the side of solar panel 1 and reflector 2.Such support structure designs can not blocked reflector 2 and is subjected to light because of bracing frame 3 is set.

Have, we can also be provided with the heat abstractor (not shown) at the back side of described solar panel 1 again.Because solar panel 1 is arranged on the side of reflector 2 in this patent.This structure is more convenient for being provided with heat abstractor compared to solar-energy light collector shown in Figure 2.

In addition, much lower according to its axle center of solar-energy light collector of this structural design with respect to solar-energy light collector shown in Figure 2.Like this, help tracking accuracy after solar-energy light collector installs sun tracker additional.And the windage of the solar-energy light collector of this spline structure is less, helps the long-term use of beam condensing unit.

In sum, this patent is by changing the project organization of traditional solar-energy light collector, and solar panel is placed the side of reflector, makes it have the above-mentioned plurality of advantages such as heat radiation, windage are little, tracking accuracy height that are not in the light, are easy to, have significant technique effect in fact, should grant patent.

On the basis of above-mentioned basic structure, this solar energy side beam condensing unit also can have following structural change.

At first, described each reflective folding face might not be interconnective.Can leave certain interval between each reflective folding face.This spline structure does not influence reflective folding face and finishes the reflecting condensation effect.

Here, the positional structure between described each reflective folding face that leaves the gap can realize by following dual mode at least.A kind of, shown in Fig. 4 a, it is stacked successively that each reflective folding face is louvered.Be the reflective folding face of last layer lower end be stacked in down the reflective folding face of one deck upper end above.Perhaps opposite, the reflective folding face of last layer lower end be stacked in down the reflective folding face of one deck upper end below.Another kind, shown in Fig. 4 b, each reflective folding face is interlaced stacked.Be the hand-deliver of the reflective folding of odd-level wrong be stacked in the reflective folding face of even level above.Perhaps opposite, the hand-deliver of the reflective folding of odd-level is wrong be stacked in the reflective folding face of even level below.

In addition, because the accurate optically focused of this solar energy side beam condensing unit depends on sunlight according to design direction incident.Therefore, control for convenience considers that this device is best along the east-west direction setting, and the sun all can move along the direction that is provided with of this device in one day like this, has avoided this device frequently to adjust the position because of following the tracks of sunlight.Yet design can attract a new problem like this, promptly in the morning or at dusk because the angle of incidence of sunlight degree is less, therefore having the part solar panel can't receive reverberation.Given this, this patent can design the length that makes the length of described reflector 2 be longer than solar panel 1.Like this, under the condition that only increases a small amount of reflector cost, solar panel is fully utilized.

Have, be not difficult to find out from the solar-energy light collector that aforementioned this patent is designed, the operate as normal of this device depends on the angle that guarantees this solar panel and sunlight incident direction and fixes.But well-known, because earth rotation and revolution effect, the incident angle of sunlight is all changing at any time.Therefore, we also can install sun tracker additional on this device.Because sun tracker described here is thought a kind of device known in the art, its concrete structure and installing mode are stated with regard to no longer enduring at this.

Also have, use for a long time out of doors and damage in order to prevent this beam condensing unit, we also need it is encapsulated, and this solar energy side beam condensing unit is placed in the packaging container.The top side of this packaging container is a transparent glass, so that sunlight is able to incident.

In sum, this patent is by changing the project organization of traditional solar-energy light collector, and solar panel is placed the side of reflector, makes it have the above-mentioned plurality of advantages such as heat radiation, windage are little, tracking accuracy height that are not in the light, are easy to.Persons skilled in the art all should be considered as within protection range of the present utility model according to any not creative change of being done under this structural design thought.

Claims (10)

1. a solar energy side beam condensing unit is characterized in that: comprise a solar panel and a reflector; Described solar panel places the side of reflector;

This solar panel is elongated; The width of this solar panel is l ₁, solar panel and sunlight incident direction angle are β;

This reflector is made of two-layer at least reflective folding face; Every layer of reflective folding face is elongated; The angle of described each reflective folding face and sunlight incident direction is followed successively by θ _A1, θ _A2, θ _A3θ _AnThe width of described each reflective folding face is l _A1, l _A2, l _A3L _AnThe wire length on the last summit of the first reflective folding face of this reflector and the last summit of solar panel is l ₂The line on the last summit of described each reflective folding face and the last summit of solar panel and sunlight incident direction angle are α ₁, α ₂, α ₃α _n

The following formula mathematical relationship of described each parameter foundation:

$l_{\mathrm{ai}}=\frac{\sin ({\mathrm{\&alpha;}}_i-\mathrm{\&beta;})}{\sin \frac{{\mathrm{\&alpha;}}_i}{2}}\&CenterDot;l_1$

${\mathrm{\&theta;}}_{\mathrm{ai}}=\mathrm{\&pi;}-\frac{{\mathrm{\&alpha;}}_i}{2}$

α _i＝α _ai-1+Δθ _ai-1

${\mathrm{\&Delta;\&theta;}}_{\mathrm{ai}}=\arcsin \left[\frac{\sin ({\mathrm{\&alpha;}}_i-\mathrm{\&beta;})\&CenterDot;l_1}{l_2-\mathrm{ctg}\frac{{\mathrm{\&alpha;}}_i}{2}\&CenterDot;\sin ({\mathrm{\&alpha;}}_i-\mathrm{\&beta;})\&CenterDot;l_1}\right]$

Wherein, i represents the top-down serial number of each reflective folding face.

2. solar energy side beam condensing unit as claimed in claim 1 is characterized in that: described solar panel and sunlight incident direction angle are that β is between 15 ° to 75 °.

3. solar energy side beam condensing unit as claimed in claim 1 is characterized in that: leave the gap between described each reflective folding face.

4. solar energy side beam condensing unit as claimed in claim 3 is characterized in that: it is stacked successively that described each reflective folding face is louvered.

5. solar energy side beam condensing unit as claimed in claim 3 is characterized in that: described each reflective folding face is interlaced stacked.

6. solar energy side beam condensing unit as claimed in claim 1, it is characterized in that: the side at described solar panel and reflector is provided with bracing frame; By this bracing frame solar panel and reflector are fixed.

7. solar energy side beam condensing unit as claimed in claim 1 is characterized in that: the length of described reflector is longer than the length of solar panel.

8. solar energy side beam condensing unit as claimed in claim 1, it is characterized in that: the back side at described solar panel is provided with heat abstractor.

9. solar energy side beam condensing unit as claimed in claim 1, it is characterized in that: this solar-energy light collector also is provided with sun tracker, and this sun tracker is followed the tracks of sunlight in order to drive this solar concentrating photovoltaic power generation cell panel.

10. solar energy side beam condensing unit as claimed in claim 1 is characterized in that: described solar energy side beam condensing unit is placed in the packaging container; The top side of this packaging container is a transparent glass.

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