CN2720335Y - Portable Feinieer light-focusing range - Google Patents
Portable Feinieer light-focusing range Download PDFInfo
- Publication number
- CN2720335Y CN2720335Y CN2004200881129U CN200420088112U CN2720335Y CN 2720335 Y CN2720335 Y CN 2720335Y CN 2004200881129 U CN2004200881129 U CN 2004200881129U CN 200420088112 U CN200420088112 U CN 200420088112U CN 2720335 Y CN2720335 Y CN 2720335Y
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- gathering
- supporting rod
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- Expired - Lifetime
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- 239000004033 plastic Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 5
- 239000002985 plastic film Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 2
- 238000010137 moulding (plastic) Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000010411 cooking Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
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- 238000000576 coating method Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
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- 229910052742 iron Inorganic materials 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
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Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/30—Arrangements for concentrating solar-rays for solar heat collectors with lenses
- F24S23/31—Arrangements for concentrating solar-rays for solar heat collectors with lenses having discontinuous faces, e.g. Fresnel lenses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/30—Solar heat collectors for heating objects, e.g. solar cookers or solar furnaces
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cookers (AREA)
Abstract
The utility model is about a portable Feinieer light-gathering solar range, being applicable to gather sunlight. The portable Feinieer light-gathering solar range comprises hackle reflecting surfaced, box bottom covers, pan brackets, a pan ring, a balance supporting rod, and balance hinges. Wherein, the box bottom covers are two, are mutually connected, and are in structures which can be opened or folded; the hackle reflecting surfaces are arranged in a concentric circle shape or a spiral line shape, and are installed in the interiors of the box bottom covers; the pan brackets are two, and are respectively installed on the two box bottom covers; the balance hinges are installed on the box bottom covers; the balance supporting rod is movably connected with the balance hinges; the balance supporting rod and the two pan brackets jointly support the pan ring. The pan brackets can be folded inside a box body, and also can be opened and stored outside the box body. The balance supporting rod is a folded structure, and is pulled apart to be a straight rod, two ends of the balance supporting rod are respectively and movably connected on the shaft hole positions of the pan ring and the balance hinges, and the balance supporting rod is taken down to be folded and put inside the box body. The portable Feinieer light-gathering solar range has high heat efficiency, convenient and flexible use, and light weight, and thereby, the portable Feinieer light-gathering solar range is more practical.
Description
Technical Field
The invention relates to a Fresnel light-gathering stove, in particular to a box-type portable Fresnel light-gathering stove which can be opened and folded.
Background
The light-gathering solar cooker is characterized by that after the incident sunlight with large area is reflected by condenser, it can produce hot light mass, and the hot light mass can be focused on the bottom of cooker so as to meet the cooking requirements. The key part of the light-gathering stove is a light-gathering lens, and the light-gathering stove not only has the selection of mirror surface materials, but also has the design of geometric shapes. The most common reflective mirror is a silver-plated or aluminum-plated glass mirror, and also has an aluminum polished mirror surface and a polyester film aluminum-plated material.
The mirror design of the light-gathering solar cooker mostly adopts the light-gathering principle of a rotating paraboloid. A surface obtained by mathematically rotating a parabola one turn around a principal axis is called a "paraboloid of revolution". If a beam of parallel light is emitted to the paraboloid along the main axis and meets the reflection of the paraboloid, the light rays are reflected to the position of the focal point in a concentrated manner, and then the effect of light condensation or focusing is formed. When the energy-saving heating device is used as a light-gathering stove, a coke surface is required to be formed at the bottom of a pot to achieve the purpose of heating. According to the experience of popularizing a light-gathering stove in China, a light-gathering solar stove with the power of 500-700 watts is designed, and the light-gathering area is about 1.5-2.0 square meters generally. The individual large steam light-gathering stove can also be regarded as a light-gathering solar stove, but the light-gathering area is large, and some of the light-gathering areas are more than 5 square meters.
The concentrating solar cooker adopts a rotating paraboloid reflector, and also adopts a reflector which divides the paraboloid into a plurality of sections and has a focus, which is called as a Fresnel lens in optics, and the Fresnel lens is also made into a continuous spiral type reflecting strip sheet. The mirror surface of the light-gathering solar cooker is formed by integral hot bending of glass, and also is formed by sticking broken glass of common glass lenses on a designed bottom plate or pasting an aluminized polyester film with high light reflection rate on the bottom plate. The bottom plate can be made of cement or made of iron sheet and calcium plastic materials. The reflector can also be made by directly polishing with an aluminum plate and coating with an anti-oxidant. The frame body of the light-focusing solar cooker is made of metal pipes by bending, the height of the pot support is moderate, the operation is convenient, and the elevation angle and the azimuth angle of the mirror surface can be flexibly adjusted. In order to move conveniently, two small wheels can be arranged at the bottom of the frame, but the stability of the oven body must be ensured. In windy places, the light-gathering stove is required to resist wind and fall. The wind-proof cover can be added on the pot wall to reduce the power drop of the pot due to the influence of wind. Some light-focusing cookers are equipped with trackers that automatically track the sun, but this is generally believed to increase the cost of the entire cooker.
The existing Fresnel light-gathering range is made up by cutting metal or plastic plate into individual circular or spiral strips with different radiuses as reflecting base surface and sticking film reflecting material on the reflecting base surface. The ring surfaces form different inclination angles by adopting cushion blocks. The ring surfaces may also be connected together by a metal frame. However, the inclination angles of the rings of the Fresnel light-gathering stove have large manufacturing errors, the structure is rough, the manual manufacturing process is backward, the rings cannot be folded structurally, the rings are difficult to store and carry, and the Fresnel light-gathering stove is not suitable for industrial production.
Therefore, it is obvious that the above-mentioned existing fresnel light-gathering stove still has inconvenience and defects in structure and use, and further improvement is needed. In order to solve the problems of the fresnel focus, the relevant manufacturers have tried to solve the problems without diligent effort, but it has not been known that suitable designs have been developed and completed for a long time, and general products have no suitable structures to solve the problems, which is obviously a problem that the relevant manufacturers want to solve.
In view of the above-mentioned shortcomings of the existing fresnel light-focusing range, the inventor of the present invention has made active research and innovation based on the practical experience and professional knowledge of many years of design and manufacture of such products, and by using the theory, in order to create a novel structure of portable fresnel light-focusing range, which can improve the existing fresnel light-focusing range and make it more practical. After continuous research and design and repeated trial production and improvement, the invention with practical value is finally created.
Disclosure of Invention
The invention aims to overcome the defects of the existing Fresnel light-gathering stove and provide a portable Fresnel light-gathering stove with a novel structure, and the technical problem to be solved is to make the plastic thin plate form a Fresnel annular integral reflection base surface by using a high-precision metal mould and an advanced plastic-sucking process, so that the heat efficiency and the product quality of the light-gathering stove are improved, and the light-gathering stove is more practical.
Another objective of the present invention is to provide a portable fresnel focusing cooker, which is designed to have a foldable support, and the support can be stored in a fresnel case, and the automatic horizontal pot ring structure using a balance hinge as a reference makes the cooker more convenient and flexible to use, and thus more practical.
The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme. The invention provides a portable Fresnel light-gathering stove which is suitable for gathering sunlight and is characterized by comprising the following components: a sawtooth-shaped reflecting surface; a case bottom cover; wherein, two box bottom covers are connected with each other and have a structure which can be opened or folded; the sawtooth-shaped reflecting surfaces are arranged in a concentric circle or spiral line shape and are arranged inside the box bottom cover.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
The portable fresnel light-gathering stove further comprises: a pan support; a pot ring; a balance strut; two balance hinges, wherein the two pot supports are respectively arranged on the two bottom covers; the balance hinge is arranged on the box bottom cover; the balance supporting rod is connected with the balance hinge; the balance support rod and the two pot supports support the pot ring together.
In the portable fresnel focusing cooker, the pot support can be folded into the case body and also can be unfolded to be stored outside the case body.
In the portable fresnel focusing cooker, a joint of the two bottom covers has a balance hinge, one leaf of the balance hinge is fixed on the bottom of the case, the other leaf of the balance hinge can be opened to extend out of the front of the case, a rotating shaft of the hinge is arranged on the bottom edge of the bottom cover, a shaft hole is arranged at the front end of the hinge, and a balance support rod is movably connected to the balance hinge.
In the portable fresnel light-gathering stove, the balance support rod is of a folding structure, and can be a straight rod when being unfolded, and two ends of the balance support rod are respectively movably connected to the pot ring and the shaft hole of the balance hinge and can be taken down to be folded and put into the box body.
In the above portable fresnel light-gathering stove, the pot ring has small shafts on two sides, and the pot holder has an * -shaped hole at one end, and the small shafts can be directly placed into the * -shaped holes of the pot holder and can be removed and stored when not in use.
In the above-mentioned portable fresnel light-gathering range, the sawtooth-shaped reflecting surfaces are respectively disposed on the two bottom covers, and when the two bottom covers are opened, the sawtooth-shaped reflecting surfaces are located on the same plane.
In the portable fresnel condenser cooker, the substrate of the sawtooth-shaped reflecting surface is made of a plastic film with a thickness of 0.1-4.0 mm by a plastic suction process, and the reflecting film and the protective film are plated on the substrate.
In the above portable fresnel condenser, the case is made by a plastic suction or injection molding process, or made of wood or metal material.
The portable Fresnel light-gathering stove also comprises a pitching supporting rod, wherein the pitching supporting rod is arranged outside the bottom cover of the box and is connected with the bottom cover of the box through an inserting plate of a sliding sleeve on the supporting rod, and the sliding sleeve is provided with a fastening bolt which can adjust and fix the position of the sliding sleeve on the supporting rod, so that the elevation angle of the whole solar stove is adjusted.
Compared with the prior art, the invention has obvious advantages and beneficial effects. As can be seen from the above technical solutions, in order to achieve the above object, the main technical contents of the present invention are as follows:
the invention provides a portable Fresnel light-gathering stove, which utilizes a high-precision metal mould and an advanced plastic-absorbing process to enable a plastic sheet to be plastic-absorbed into a Fresnel annular integral reflection base surface, the angle precision of different rings on the base surface is very high, and the whole base surface adopts a magnetron sputtering technology or a vacuum evaporation technology; the reflecting film and the protective film are plated, so that the heat efficiency and the product quality of the light-gathering stove are greatly improved; the production efficiency is greatly improved, and the real industrial production of the Fresnel light-gathering stove is realized.
The support is designed into a folding structure and can be stored in a box body of the Fresnel light-gathering stove, and the pot ring can be conveniently taken and placed in the * -shaped hole at the upper end of the pot support. The automatic horizontal pot ring structure taking the balance hinge as a reference enables the stove to be more convenient and flexible to use.
In conclusion, the portable Fresnel light-focusing stove with the special structure can improve the heat efficiency and the product quality of the light-focusing stove, simultaneously improves the production efficiency, and is more convenient and flexible to use. The Fresnel focusing cooker has the advantages and practical values, does not have similar structural design, is published or used, is innovative, has great improvement on structure or function, has great technical progress, produces good and practical effects, has a plurality of enhanced effects compared with the prior Fresnel focusing cooker, is more suitable for practical use, has industrial wide utilization value, and is a novel, improved and practical new design.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic structural diagram of the box body of the present invention.
Fig. 3 is a side view schematically showing a use state of the present invention.
1: sawtooth-shaped reflecting surface 2: pot support
3: a pot ring 4: bottom cover of case
6: and a balance support rod 7: balance hinge
8: "*" shaped hole 9: shaft hole
10: pitching supporting rod
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects of the fresnel condenser according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
Please refer to fig. 1, which is a schematic structural diagram of the usage status of the present invention. The utility model relates to a gathering solar radiation can for the device of cooking, it includes: the cross section of the pan is a sawtooth-shaped reflecting surface 1, a pan bracket 2, a pan ring 3, a bottom cover 4, a balance supporting rod 6, a balance hinge 7 and a pitching supporting rod 10. The two bottom covers 4 are mutually connected by hinges and are of a structure capable of being opened or folded; the sawtooth-shaped reflecting surfaces 1 are arranged in the approximate shape of concentric circles or spiral lines, and the sawtooth-shaped reflecting surfaces 1 are arranged inside the box bottom cover 4. The two pot supports 2 are respectively arranged on the two bottom covers 4; the balance hinge 7 is arranged on the box bottom cover 4; the balance supporting rod 6 is connected with a balance hinge 7; the balance supporting rod 6 and the two pot supports 2 support the pot ring together. When in use, the pot support can be vertical, two small side shafts of the pot ring 3 are put into the * -shaped hole 8 at the upper end of the support, and the automatic balance support rod 6 is respectively movably connected with the pot ring 3 and the shaft hole 9 on the balance hinge 7. The pan ring 3 is always automatically in the horizontal state. The pot can be put on the pot ring 3 for cooking.
The substrate of the sawtooth-shaped reflecting surface 1 is made of a plastic film (0.1-4.0 mm) through a plastic suction process, and a reflecting film and a protective film are plated on the substrate.
The reflecting surface 1 can be composed of concentric circular table tops or spiral line-shaped approximate circular table tops, and most importantly, the reflecting surface is arranged in the box body to form a tourism box body which can be opened and closed.
The box body 4 can be made by a plastic absorption type or injection molding type process, and can also be made of wood or metal materials.
The movable pot support 2 can be folded into the box body to be convenient to store and can also be detached to store outside the box body.
The front end of the joint of the two bottom covers 4 is provided with a pair of balance hinges 7, one leaf of each balance hinge is fixed on the bottom cover 4, the other leaf of each balance hinge can be stretched out of the front of the box body, a rotating shaft of each balance hinge 7 is right on the bottom edge of the bottom cover 4, the length of the balance hinge 7 extending out of the box body is equal to the radius of the pot ring 3, the front end of each balance hinge 7 is provided with a shaft hole 9, and a balance support rod 6 is movably connected with the shaft hole.
The pan ring balance supporting rod 6 is of a folding structure, can be a straight rod when being pulled open, and two ends of the pan ring balance supporting rod are respectively movably connected to the pan ring 3 and the shaft hole 9 of the balance hinge 7 and can be taken down to be folded and placed in the box body.
When in use, the small shafts at the two sides of the pot ring can be directly placed into the * -shaped holes of the pot support 2, the fastening is not needed, the use is convenient and reliable, and the pot ring can be immediately taken down and stored when not used.
Please refer to fig. 2, which is a schematic diagram of the box structure of the present invention. The pot support 2 of the utility model can be folded in the box body when not in use, and is convenient for storage.
Please refer to fig. 3, which is a schematic side view of the usage status of the present invention. The whole reflecting surface 1 is respectively arranged on the two bottom covers 4, the two bottom covers 4 are opened to be positioned on the same plane, and the bottom covers can converge the incident solar rays in parallel at the position of the pot bottom on the center of the pot ring 3, thereby heating the objects in the pot. The pitching supporting rod 10 is adjusted to enable the reflecting surface to be aligned to the sun (even if the bottom of the pot is vertical to sunlight), so that light can be gathered at the bottom of the pot on the pot ring for cooking. When not used, the combined box can be stored like a box.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A portable Fresnel light-gathering stove suitable for gathering sunlight is characterized by comprising: a sawtooth-shaped reflecting surface; a case bottom cover; wherein,
the two bottom covers are mutually connected and can be opened or folded;
the sawtooth-shaped reflecting surfaces are arranged in a concentric circle or spiral line shape and are arranged inside the box bottom cover.
2. A portable fresnel concentrator as defined in claim 1, further comprising: a pan support; a pot ring; a balance strut; a balance hinge, wherein,
the two pot supports are respectively arranged on the two bottom covers;
the balance hinge is arranged on the box bottom cover;
the balance supporting rod is connected with the balance hinge;
the balance support rod and the two pot supports support the pot ring together.
3. A portable fresnel light-gathering stove as recited in claim 2, wherein the pan support is foldable into the case or foldable to be stored outside the case.
4. A portable fresnel light-gathering stove as defined in claim 2 or 3, wherein the junction between the two bottom flaps has a balancing hinge, one leaf of which is fixed to the bottom flap and the other leaf of which is extendable to extend out of the front of the case, the hinge having a pivot at the bottom edge of the bottom flap, and a shaft hole at the front end of the hinge, to which the balancing strut is movably connected.
5. A portable Fresnel light-gathering cooker as claimed in claim 4 wherein the balance bar is a folding structure which can be pulled open to form a straight bar, both ends of which are movably connected to the pot ring and the shaft hole of the balance hinge respectively, and the balance bar can be taken off and folded into the case.
6. A portable fresnel concentrator as defined in claim 2, wherein the pot ring has small shafts on both sides, and the pot holder has an opening at one end in the form of "*", the small shafts being adapted to be directly received in the opening in the form of "*" of the pot holder and removable for storage when not in use.
7. A portable fresnel light-gathering stove as recited in claim 2, wherein the sawtooth-shaped reflecting surfaces are respectively disposed on two bottom covers, and the sawtooth-shaped reflecting surfaces are disposed on the same plane when the two bottom covers are opened.
8. A portable Fresnel light-gathering stove as claimed in claim 7, wherein the substrate of the sawtooth-shaped reflecting surface is made of plastic film with a thickness of 0.1-4.0 mm by plastic suction process, and is coated with a reflecting film and a protective film.
9. A portable fresnel concentrator as in claim 2, wherein the casing is made by a plastic or injection molding process, or is made of wood or metal material.
10. A portable fresnel light-gathering stove as defined in claim 2, further comprising a pitching supporting rod installed outside the bottom cover of the case and connected to the bottom cover of the case through an insert plate of a sliding sleeve on the supporting rod, the sliding sleeve having a fastening bolt for adjusting and fixing the position of the sliding sleeve on the supporting rod, thereby adjusting the elevation angle of the whole solar stove.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN2004200881129U CN2720335Y (en) | 2004-08-25 | 2004-08-25 | Portable Feinieer light-focusing range |
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Application Number | Priority Date | Filing Date | Title |
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CN2004200881129U CN2720335Y (en) | 2004-08-25 | 2004-08-25 | Portable Feinieer light-focusing range |
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CN2720335Y true CN2720335Y (en) | 2005-08-24 |
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CN2004200881129U Expired - Lifetime CN2720335Y (en) | 2004-08-25 | 2004-08-25 | Portable Feinieer light-focusing range |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102158131A (en) * | 2011-03-22 | 2011-08-17 | 苏州震旦光伏科技有限公司 | Solar photovoltaic system |
CN103235402A (en) * | 2013-04-19 | 2013-08-07 | 日芯光伏科技有限公司 | Larger-diameter non-imaging Fresnel reflection collecting lens and manufacturing method thereof |
CN106196642A (en) * | 2016-08-05 | 2016-12-07 | 孔庆楠 | A kind of portable beam condensing unit |
CN106322780A (en) * | 2015-06-17 | 2017-01-11 | 万继平 | Double-sided-mirror sunlight stove |
-
2004
- 2004-08-25 CN CN2004200881129U patent/CN2720335Y/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102158131A (en) * | 2011-03-22 | 2011-08-17 | 苏州震旦光伏科技有限公司 | Solar photovoltaic system |
CN102158131B (en) * | 2011-03-22 | 2013-06-19 | 苏州震旦光伏科技有限公司 | Solar photovoltaic system |
CN103235402A (en) * | 2013-04-19 | 2013-08-07 | 日芯光伏科技有限公司 | Larger-diameter non-imaging Fresnel reflection collecting lens and manufacturing method thereof |
CN106322780A (en) * | 2015-06-17 | 2017-01-11 | 万继平 | Double-sided-mirror sunlight stove |
CN106196642A (en) * | 2016-08-05 | 2016-12-07 | 孔庆楠 | A kind of portable beam condensing unit |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
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Expiration termination date: 20140825 Granted publication date: 20050824 |