CN101899942B - Dual-functional louver blade - Google Patents

Dual-functional louver blade Download PDF

Info

Publication number
CN101899942B
CN101899942B CN2010102303710A CN201010230371A CN101899942B CN 101899942 B CN101899942 B CN 101899942B CN 2010102303710 A CN2010102303710 A CN 2010102303710A CN 201010230371 A CN201010230371 A CN 201010230371A CN 101899942 B CN101899942 B CN 101899942B
Authority
CN
China
Prior art keywords
tooth
blade
flank
louvre blade
dual
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2010102303710A
Other languages
Chinese (zh)
Other versions
CN101899942A (en
Inventor
张一飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhuji Longpai Energy Saving Technology Co Ltd
Original Assignee
HANGZHOU OKA SUOLA TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HANGZHOU OKA SUOLA TECHNOLOGY Co Ltd filed Critical HANGZHOU OKA SUOLA TECHNOLOGY Co Ltd
Priority to CN2010102303710A priority Critical patent/CN101899942B/en
Publication of CN101899942A publication Critical patent/CN101899942A/en
Priority to PCT/CN2011/001180 priority patent/WO2012009956A1/en
Application granted granted Critical
Publication of CN101899942B publication Critical patent/CN101899942B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26Lamellar or like blinds, e.g. venetian blinds
    • E06B9/38Other details
    • E06B9/386Details of lamellae
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26Lamellar or like blinds, e.g. venetian blinds

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Blinds (AREA)

Abstract

The invention relates to a dual-functional louver blade which comprises a blade and an overturning mechanism thereof. The dual-functional louver blade is characterized in that one surface of the blade is a sun shielding surface which reflects solar ray irritated thereon back to the outdoor; the other surface of the blade is a light guiding surface which leads all or some solar ray irritated thereon to the indoor; the overturning mechanism drives the blade to rotate and leads the positions of the sun shielding surface and the light guiding surface to be mutually changed; the sun shielding surface of the blade is provided with micro-teeth; and all or some light guiding surface of the blade is provided with the micro-teeth. The dual-functional louver blade has the benefit effects that a louver sun shielding and light guiding system which is formed by the dual-functional louver blade with random cross section shapes can control the optimization of the reflex reflection and the deflexion leading quantity of the direct sunlight according to the change of seasons and the specific requirement of users, overcome the requirement contradiction of the sunshine in summer and in winter, keep high perspective ratio whatever the solar altitude angle is high or low, and meet the requirement of the visual communication between users and scenery outside the window.

Description

Dual-functional louver blade
Technical field
The present invention relates to a kind of louvre blade structure of blinds sunshade light-conducting system, more specifically to a kind of dual-functional louver blade.
Background technology
(patent No.: CN2844378) disclose a kind of louvre blade, the one side of this blade is made as the black heat-absorbent surface to China's utility model patent " a kind of multi-functional shutter blade ", and another side is made as silvery white or white reflection face; Through reflecting surface the reflect heat of solar radiation is gone back; Reach refrigerant effect, when room temperature is on the low side, with the blade heat-absorbent surface towards outside window; Absorb the heat of solar radiation, to the indoor effect of heating that plays.China's utility model patent " a kind of hollow shutter cool in summer and warm in winter " (patent No.: CN201196008) disclose a kind of arc-shaped louver blade, sunlight reflected coatings such as this blade convex surface plating fine aluminium or tin metal; Forward face plating solar selectively absorbing coating.Can choose at random the flip angle of blade according to the change of season, weather, identical with the said effect of above-mentioned patent.Yet these louvre blades all can't be controlled the sunray travel direction that shines on the louvre blade well, thereby also can't overcome indoor dazzle, can't obtain uniform indoor daylight illumination.Therefore; Need a kind of new dual-functional louver blade of development; The blinds sunshade light-conducting system that is made up of this new dual-functional louver blade is except having anti-dazzle and anti-overheated function; Also have and indoorly can obtain uniform daylight illumination function, can also utilize sunlight to warm oneself in winter and reduce heat cost.
In general; (boundary of top and lower part was a benchmark with a height to two parts usually about blinds sunshade light-conducting system can be divided into; Be set at 1.9m the America and Europe; In the Asia this benchmark should to be defined as 1.8m comparatively appropriate), the blinds gradient of these two parts can be correlated with, and also can be independently.Usually the lower part blinds can be set to anti-dazzle with anti-overheated, and the top blinds then is set to light is imported indoor depths.Except increasing cost of design, this system also has a shortcoming, be exactly the two-part utilization of defining with anti-dazzle and light all be to set in advance, rather than according to the user according to season and workplace concrete lighting condition regulate.
The room lighting situation not only depends on season, position of sun and sky condition (cloudy or sunny) Several Factors, also depends on condition of work, and the occupational category of being engaged in like people, height, operating position are from the distance of window.Clearly, the blinds sunshade light-conducting system by architect and architectural lighting teacher define can't satisfy above-mentioned all requirements, and can only be a compromise between them.The another one problem is in the different blinds part of different occasions outfit, to have increased the price of cost of design and blinds sunshade light-conducting system greatly.
Deutsche Bundespatent (DE4239003A1) discloses surperficial toothed dull and stereotyped louvre blade and cross section is the louvre blade of arc; Through the miniature tooth of louvre surface the sunray that shines on the louvre blade is regulated and control; But, when high sun altitude and low sun altitude.Sunray can produce dazzle in the inlet chamber.In order to address the above problem; European patent (EP1212508B1) discloses some surface band tooth and not toothed difform louvre blades; Wherein showing excellent separately characteristic aspect the perspective rate of the retro-reflection of direct sunlight and importing and blinds sunshade light-conducting system with sector shape louvre blade and W shape louvre blade; The perspective rate of the blinds sunshade light-conducting system of being made up of W shape louvre blade can reach 74%, and the perspective rate of the blinds sunshade light-conducting system of being made up of band sector shape louvre blade then can reach 88%.But; But there is the problem that can't solve conversion in season and real needs in the blinds sunshade light-conducting system of being made up of these louvre blades; Blinds sunshade light-conducting system more need keep high perspective rate and import more sunlight and do the time spent of room lighting owing to can't prevent that dazzle from producing and need the blinds closure when low sun altitude; In addition, for cross section be the simple and rapid method of definite neither one of the miniature tooth on the louvre surface of arbitrary shape.
Summary of the invention
Technical problem to be solved by this invention is: a kind of dual-functional louver blade is provided; It simultaneously is a sun face; Another side is a light guiding surface; Sun face can be outdoor with the sunray reflected back of irradiation on it, and it is outdoor that light guiding surface can import to indoor another part reflected back with irradiation all or part of sunray on it, the blinds sunshade light-conducting system that is made up of this dual-functional louver blade; Can come according to season and weather condition and people's actual requirement the retro-reflection of direct sunlight and deflection imported carry out flexibly, best regulation and control; Reach the high perspective rate of blinds sunshade light-conducting system, obtain indoor uniform sun lights lightness, and avoid indoor dazzle and summer is overheated and obtain more solar energy in the winter time in order to heating of house.Simultaneously, provide a kind of fast and convenient design formulas to confirm the angle and the physical dimension of the miniature tooth of louvre surface.
The technical scheme that the present invention adopted is specific as follows:
A kind of dual-functional louver blade; Comprise blade and switching mechanism thereof, it is characterized in that: blade simultaneously is the outdoor sun face of sunray reflected back that is used for shining on it, and another side is to be used for all or part of sunray that shines on it is imported to indoor light guiding surface; Switching mechanism orders about blade rotation; And can make sun face and light guiding surface transposition, and the sun face of blade is provided with miniature tooth, and the light guiding surface of blade partly or entirely is provided with miniature tooth.
Light guiding surface is up the time, the miniature tooth of light guiding surface by two kinds of the outside and inside parts not isodont form.
Said miniature tooth is for playing the retro-reflection tooth of retro-reflection effect to direct sunlight, described retro-reflection tooth comprises two the adjacent flank of tooth first flank of tooth and second flank of tooth, and first flank of tooth is vertical each other with second flank of tooth.
Second flank of tooth of said retro-reflection tooth and the angle of horizontal plane HExcursion can be by 90 °-(β Ia '+ H)/2≤α H≤90 °-(β Ia+ confirm that H)/2 wherein H is a sun altitude, β Ia 'Be the line of a bit any of louvre blade and the outer end points of last one adjacent louvre blade and the angle of louvre blade outside horizontal plane, β IaAny 1 i and the line of the outer end points of louvre blade and the angle of louvre blade outside horizontal plane for louvre blade.
Second flank of tooth of said retro-reflection tooth and horizontal plane angle α HThe optimum value design formulas be α H=90 °-(β Ia '+ H)/2, H=β in the formula Ca ', β Ia 'Be the line of a bit any of louvre blade and the outer end points of last one adjacent louvre blade and the angle of louvre blade outside horizontal plane, β Ca 'Be inner end point c and the line of the outer end points of last one adjacent louvre blade and the angle of louvre blade outside horizontal plane of louvre blade, its excursion is β Ca '=30 °~35 °.
The miniature tooth of said light guiding surface is the suitable tooth that direct sunlight is played deflection importing effect, and said suitable tooth comprises two the adjacent flank of tooth first flank of tooth and second flank of tooth, and first flank of tooth is vertical each other with second flank of tooth.
The miniature tooth of said light guiding surface is the pawl that direct sunlight is played deflection importing effect; Described pawl comprises two the adjacent flank of tooth first flank of tooth and second flank of tooth; First flank of tooth is vertical each other with second flank of tooth; Be radiated at a part on second flank of tooth and direct sunlight deflection imported to indoor, another part direct sunlight is deflected on first flank of tooth outdoor aerial along sunlight incident direction reflected back by first flank of tooth again.
Beneficial effect of the present invention: by cross section is that the blinds sunshade light-conducting system that the dual-functional louver blade of arbitrary shape constitutes can reach the retro-reflection of control direct sunlight and the optimization of deflection import volume according to conversion in season and people's concrete needs; Make summer and winter overcome to the demand contradictory of sunlight; No matter high sun altitude of while or low sun altitude; System all keeps very high perspective rate; Satisfy the demand that people exchange with the vision of scenery outside window, compare with blinds sunshade light-conducting system in the past, native system dynamically has adaptivity to the sun; The number of operations of blinds only needs twice in one day, has removed traditional blinds and has needed constantly to rotate the trouble that blinds adapts to the variation and the intelligent control of blinds of sun altitude.
Description of drawings
Fig. 1 cross section is geometrical construction, angle and the dimension definitions of corrugated louvre blade (sun face up)
Fig. 2 cross section is geometrical construction, angle and the dimension definitions of corrugated louvre blade (light guiding surface up)
Fig. 3 plays the definition of the face angle of the miniature tooth on the curved surface of retro-reflection effect and deflection importing effect to direct sunlight
Fig. 4 cross section is the type and the distribution situation of the miniature tooth of rectilinear louvre surface
Fig. 5 cross section is the type and the distribution situation of the surperficial miniature tooth of dual-functional louver blade (h/L=8.6%) of V font
Fig. 6 cross section is the type and the distribution situation of the surperficial miniature tooth of the linear dual-functional louver blade of eighty percent discount (h/L=7.2%)
Fig. 7 cross section is the type and the distribution situation of the surperficial miniature tooth of corrugated dual-functional louver blade (h/L=10.5%)
Fig. 8 a~Fig. 8 j linear dual-functional louver blade imports situation in light retro-reflection and the deflection of different sun altitude H
Fig. 9 a~Fig. 9 jV font dual-functional louver blade (h/L=8.6%) imports situation in light retro-reflection and the deflection of different sun altitude H
Figure 10 a~linear dual-functional louver blade of Figure 10 j eighty percent discount (h/L=7.2%) imports situation in light retro-reflection and the deflection of different sun altitude H
Figure 11 a~Figure 11 j waveform dual-functional louver blade (h/L=10.5%) imports situation in light retro-reflection and the deflection of different sun altitude H
The specific embodiment
Fig. 1 has provided cross section (broad ways) and has been geometrical construction and all angles and the dimension definitions of corrugated louvre blade (sun face 1 up), and louvre blade comprises blade 10 and switching mechanism thereof, and blade 10 one sides are the outdoor sun faces 1 of sunray reflected back that are used for shining on it; Another side is to be used for irradiation all or part of sunray on it is imported to indoor light guiding surface 3, and switching mechanism orders about blade rotation, and can make sun face and light guiding surface transposition; The sun face 1 of blade is provided with miniature tooth; The light guiding surface 3 of blade partly or entirely is provided with miniature tooth, and wherein L is the width of blade 10, i.e. the outer end points a of blade 10 and the horizontal range of inner end point c; D is the pitch of adjacent two louvre blades 10; Promptly be the vertical distance of adjacent two louvre blade inner end point c, as preferably, the optimum ratio of the width L of the pitch D of adjacent two louvre blades 10 and louvre blade 10 is 0.7; The vertical distance that peak of block vision when h is louvre blade 10 horizontal positioned (being inner end point c ' here) and minimum point (being outer end points a ' here) are 2; Г is the perspective rate (Г=1-h/D), illustrate β among Fig. 1 (a) with the empty frame of arrow among the figure of blinds sunshade light-conducting system Ca 'Be the line of the light guiding surface 3 outer end points a ' of the sun face 1 inner end point c of louvre blade 10 and last one adjacent louvre blade 1 and the angle of louvre blade 10 outside horizontal planes, β Ia 'Be the line of the light guiding surface 3 outer end points a ' of sun face 1 any 1 i of louvre blade 10 and last one adjacent louvre blade 10 and the angle of louvre blade 10 outside horizontal planes, β IaBe the line of the sun face 1 outer end points a of sun face 1 any 1 i of louvre blade 10 and louvre blade 10 and the angle of louvre blade 10 outside horizontal planes, β IxBe the angle of any 1 i place reflection ray of the sun face of louvre blade 10 and horizontal plane, H is the angle (being referred to as sun altitude) of incident sunray and louvre blade 10 outside horizontal planes, β among Fig. 1 (b) Ic 'Be the line of the light guiding surface 3 inner end point c ' of louvre blade 10 sun faces, 1 any 1 i and last one adjacent louvre blade 10 and the angle of louvre blade 10 inboard horizontal planes, β IcBe the line of the sun face 1 inner end point c of sun face 1 any 1 i of louvre blade 10 and louvre blade 10 and the angle of louvre blade 10 inboard horizontal planes, among Fig. 1 (c) Louvre blade 10 down rotates the angle that forms with initial installation position up the time for sun face 1, and this moment, louvre blade 10 outer end points a forwarded f to, and a ' forwards on f ' position, and some c in inner end forwards g to, and c ' forwards on g ' position, β Gf 'Be the line of the reposition f of the light guiding surface 3 outer end points a ' of the reposition g of the sun face 1 inner end point c of louvre blade 10 and last one adjacent louvre blade 1 and the angle of louvre blade 10 outside horizontal planes, β If 'Be the line of the reposition f ' of the light guiding surface 3 outer end points a ' of sun face 1 any 1 i of louvre blade 10 and last one adjacent louvre blade 10 and the angle of louvre blade 10 outside horizontal planes, β IfBe the reposition f line of the sun face 1 outer end points a of sun face 1 any 1 i of louvre blade 10 and louvre blade 10 and the angle of louvre blade 10 outside horizontal planes, β IxBe sun face 1 any 1 the i place reflection ray of louvre blade 10 and the angle of horizontal plane, H is a sun altitude); 10 pairs of direct sunlights of louvre blade carry out reflection ray and louvre blade 10 outside horizontal plane angle β that retro-reflection produced among Fig. 1 (a) IxNeed to satisfy: (β Ia+ H)/2≤β Ix≤(β Ia '+ H)/2,10 pairs of direct sunlights of louvre blade carry out reflection ray and the louvre blade 10 inboard horizontal plane angle β that the deflection importing is produced among Fig. 1 (b) IxNeed to satisfy: 90 °+(β Ic-H)/2≤β Ix≤90 °+(β Ic '-H)/2,10 pairs of direct sunlights of louvre blade carry out reflection ray and louvre blade 10 outside horizontal plane angle β that retro-reflection produced among Fig. 1 (c) IxNeed to satisfy: (β If+ H)/2≤β Ix≤(β If '+ H)/2.
Referring to Fig. 2, with 180 ° of louvre blade 10 upsets, then sun face 1 and light guiding surface 3 transpositions; Be light guiding surface 3 up, sun face 1 down, at this moment; The innner and outer end transposition of louvre blade sun face 1; Be the outer end a of louvre blade sun face 1 and the inner end c ' switch of last one adjacent louvre blade light guiding surface 3, the outer end a ' switch of the inner end c of louvre blade sun face 1 and last one adjacent louvre blade light guiding surface 3 is in order to narrate conveniently; Change each end points label symbol of the louvre blade behind the above-mentioned transposition label symbol of former sun face up time the into, then louvre blade geometrical construction and all angles and dimension definitions and the sun face 1 of light guiding surface 3 up the time is identical up the time.
The flank of tooth role of the miniature tooth on the louvre surface can be divided into two types, and one type is carried out retro-reflection to outdoor to direct sunlight, another kind ofly direct sunlight is carried out deflection imports to indoor.Fig. 3 (a)~(c) has provided direct sunlight has been played the geometry of the miniature tooth on the curved surface louvre blade of retro-reflection effect and deflection importing effect and the definition of face angle; Fig. 3 (a) is for playing the miniature tooth geometry and the viewpoint definition (being referred to as the retro-reflection tooth) of retro-reflection effect on the arbitrary surface louvre blade to direct sunlight; The retro-reflection tooth comprises two the adjacent flank of tooth first flank of tooth 6 and second flank of tooth 5; First flank of tooth 6 is vertical each other with second flank of tooth 5; Fig. 3 (b) is for playing miniature tooth (being referred to as along tooth) geometry and the viewpoint definition of deflection importing effect on the arbitrary surface louvre blade to direct sunlight, Fig. 3 (c) is for playing miniature tooth (the being referred to as pawl) geometry and the viewpoint definition of deflection importing effect to direct sunlight on the arbitrary surface louvre blade; Various miniature teeth equate along the facewidth p of louvre surface width; Tooth top is on the same louvre surface; First flank of tooth 6 that miniature tooth two is adjacent is vertical each other with second flank of tooth 5, direct sunlight is played retro-reflection tooth second flank of tooth 5 and the angle of horizontal plane on the curved surface louvre blade of retro-reflection effect HExcursion can be by 90 °-(β Ia '+ H)/2≤α H≤90 °-(β Ia+ H)/2 confirm, direct sunlight is played suitable tooth or the angle of pawl second flank of tooth 5 and horizontal plane on the curved surface bucket of deflection importing effect HExcursion can be by (β Ic-H)/2≤α H≤(β Ic '-confirm that H)/2 wherein H is a sun altitude; The effect of retro-reflection tooth is that the direct sunlight that drops on its second flank of tooth 5 is outdoor aerial along inclined to one side angle reflected back of sunlight incident direction; Maybe will drop on direct sunlight on miniature tooth second flank of tooth 5 deflects on first flank of tooth 6 or the direct sunlight that drops on miniature tooth first flank of tooth 6 deflects on second flank of tooth 5 outdoor aerial along sunlight incident direction reflected back again; Do not allow sunlight to rest on and be converted into heat on the blade; Thereby the shaded effects of playing generally are used to tackle high sun altitude H (sun altitude H>β in summer Ca ') direct sunlight; Comprise two the adjacent flank of tooth first flank of tooth 6 and second flank of tooth 5 along tooth; First flank of tooth 6 is vertical each other with second flank of tooth 5; Second flank of tooth, 5 width along tooth are more much bigger than the width of first flank of tooth 6; Its effect is that the direct sunlight deflection that drops on its second flank of tooth 5 is directed into indoor use (and first flank of tooth 6 generally can not arrived by solar radiation) of doing daylight illumination and heating, generally tackles high sun altitude H (sun altitude H>β in winter along tooth Ca ') or hang down sun altitude H (sun altitude H≤β summer in winter Ca ') direct sunlight; Pawl comprises two the adjacent flank of tooth first flank of tooth 6 and second flank of tooth 5; First flank of tooth 6 is vertical each other with second flank of tooth 5; Second flank of tooth, 5 width of pawl are more much bigger than first flank of tooth, 6 width; Two flank of tooth play diverse effect to direct sunlight, impinge upon a part of direct sunlight on second flank of tooth 5 and are deflected and import to indoorly, and a part of direct sunlight is deflected on first flank of tooth 6 outdoor aerial along sunlight incident direction reflected back by first flank of tooth 6 again; Pawl generally is used for the direct sunlight deflection with maximum sun altitude H in winter (it is generally acknowledged this moment sun altitude H=45 °), makes it can not reflex to the light guiding surface of an adjacent louvre blade by inner end point c '.In order to tackle the direct sunlight of Various Seasonal and different sun altitudes, the sun face 1 of dual-functional louver blade all is set to the retro-reflection tooth, and the light guiding surface 3 of dual-functional louver blade will be processed into various ways: 1. all be shiny surface; 2. a part is a shiny surface, a part for the band toothed portion (such as, a preceding part is a pawl; A back part is a shiny surface, and 3. a part is one type of miniature tooth, another part be another kind of miniature tooth (such as; A preceding part is the retro-reflection tooth, and a back part is along tooth).
The shape of cross section of dual-functional louver blade can be linear, V font, eighty percent discount is linear and other arbitrary shape such as waveform; The sun face of blade 1 and light guiding surface 3 are with the reflective surface of miniature tooth (less sawtooth) (referring to Fig. 4~Fig. 7); Louvre blade 10 can go up and down and also can rotate; Can also overturn 180 °, its sun face 1 and light guiding surface 3 transpositions, the angle of rotation of louvre blade 10 are with subscripting
Figure BSA00000196151600081
With
Figure BSA00000196151600082
Expression, wherein
Figure BSA00000196151600083
When representing that louvre blade sun face 1 is up, it down rotates the angle with initial installation position,
Figure BSA00000196151600084
When representing that louvre blade 10 light guiding surfaces 3 up, it down rotates the angle with initial installation position; At high sun altitude H (sun altitude H>β in summer Ca ') time, louvre blade 10 sun faces 1 are up (when being horizontal
Figure BSA00000196151600085
), arrive the direct sunlight retro-reflection that drops on its sun face 1 miniature tooth outdoor; High in the winter time sun altitude H (sun altitude H>β Ca ') time, the light guiding surface 3 of louvre blade 10 is up (when being horizontal ), import to indoor or whole direct sunlight deflections to the deflection of outdoor another part direct sunlight and import to indoor dropping on a part of direct sunlight retro-reflection on the light guiding surface 3 miniature teeth; At low sun altitude (sun altitude H≤β in summer in winter Ca ') time, louvre blade 10 light guiding surfaces 3 are up (when being horizontal
Figure BSA00000196151600087
), need louvre blade 10 is down rotated this moment, make it with horizontal plane at an angle
Figure BSA00000196151600088
(at this moment
Figure BSA00000196151600089
), thereby do not allow the indoor generation dazzle of sunlight direct projection, will drop on a part of direct sunlight retro-reflection on the louvre blade 10 light guiding surfaces 3 miniature teeth again and import to indoor or whole direct sunlight deflections to the deflection of outdoor another part direct sunlight and import to indoor.
The sun face 1 of louvre blade 10 and the method for light guiding surface 3 transpositions are; With louvre blade 10 from above or below number in order, the louvre blade 10 that will be numbered odd number then conspires to create one group, and the louvre blade that is numbered even number 10 is conspired to create another group; Earlier with one group of upset, and then with another group upset.
Fig. 4~Fig. 7 has shown the type and the distribution situation of linear, V font (h/L=8.6%), eighty percent discount linear (h/L=7.2%) and waveform (h/L=10.5%) louvre blade sun face and the miniature tooth of light guiding surface respectively.Cross section be the dual-functional louver blade of arbitrary shape should be adapted to summer and winter two Various Seasonal, be adapted to two different altitude of the sun angular zone (H>β again Ca 'And H≤β Ca ') variation, its sun face 1 all should have different miniature teeth with light guiding surface 3, the miniature tooth of light guiding surface 3 also can by two kinds of the outside and inside parts not isodont form; Fig. 7 (a) is (b) for being used for the above louvre blade from flooring 1.8m; Wherein (a) be sun face 1 up, (b) be light guiding surface 3 up, louvre blade is with label 10 expression; The Outboard Sections of light guiding surface 3 is with 31 expressions, and its width is so that (light guiding surface 3 is end points distance L a) outside some c ' in inner end becomes up the time from louvre blade inner end point c ' 1Expression, the inside part of light guiding surface 3 be with 32 expressions, and its width is with the distance L of end points a ' outside louvre blade (light guiding surface up the time outside end points a ' become inner end point c) 2Expression; Fig. 7 (c) is (d) for being used for the louvre blade below the 1.8m of flooring; Wherein (c) be sun face 2 up, (d) be light guiding surface 4 up, louvre blade is with label 20 expression; The Outboard Sections of light guiding surface 4 is with 41 expressions, and its width is so that (light guiding surface 4 is end points distance L a) outside some c ' in inner end becomes up the time from louvre blade inner end point c ' 1Expression, the inside part of light guiding surface 4 be with 42 expressions, and its width is with the distance L of end points a ' outside louvre blade (light guiding surface up the time outside end points a ' become inner end point c) 2Expression.
The sun face 2 of the louvre blade 20 among Fig. 4 (a), Fig. 5 (a), Fig. 6 (a), Fig. 7 (a) among the sun face 1 of louvre blade 10 and Fig. 4 (c), Fig. 5 (c), Fig. 6 (c), Fig. 7 (c) is used for sunshade up, louvre blade 10 horizontal settings this moment (
Figure BSA00000196151600091
Referring to Fig. 1), the retro-reflection tooth is set, second flank of tooth 5 and horizontal plane angle α of retro-reflection tooth on it HThe optimum value design formulas be α H=90 °-(β Ia '+ H)/2, H=β in the formula Ca 'The light guiding surface 3 of louvre blade 10 up among Fig. 4 (b), Fig. 5 (b), Fig. 6 (b), Fig. 7 (b); Be used for from the above leaded light of flooring 1.8m; Light guiding surface 3 Outboard Sections 31 bands of louvre blade 10 are along tooth or pawl; So that the direct sunlight of maximum sun altitude H in winter (H=45 °) can not deflect near the sun face of adjacent louvre blade 10 inner end point c ', miniature tooth second flank of tooth 5 and horizontal plane angle α HThe optimum value design formulas be α H=(β Ix-H)/2, and (β Ic-H)/2≤α H≤(β Ic '-H)/2, and in the formula H=45 °, width L 1=0~L, inside part 32 is a shiny surface, its width L 2=L-L 1The light guiding surface 4 of louvre blade 20 is in initial installation position up among Fig. 4 (d), Fig. 5 (d), Fig. 6 (d), Fig. 7 (d); Be used for from the following leaded light of flooring 1.8m; Its Outboard Sections 41 is taken back the interflection tooth, suitable tooth of inside part 42 bands or pawl, second flank of tooth 5 and horizontal plane angle α of retro-reflection tooth HThe optimum value design formulas be α H=90 °-(β Ia '+ H)/2, H=β in the formula Ca ', width L 1=L/2~2L/3, second flank of tooth 5 and horizontal plane angle α of inside part 42 HOptimum value to choose be that louvre blade 20 is rotated counterclockwise an angle around louvre blade rotating shaft (broad ways mid point)
Figure BSA00000196151600101
Make the inner end point c of louvre blade 20 turn to reposition g, c ' turns to reposition g ', and the outer end points a of louvre blade 20 turns to reposition f, and a ' turns to reposition f ', 2 g and the line of f ' and the angle β of louvre blade 20 outside horizontal planes Gf '=H=20 °, press α again H=(β Ig '-H)/2 calculate β Ig 'Be the louvre blade line of the reposition (g ') of (i) and last one adjacent louvre blade inner end point (c ') and the angle of the inboard horizontal plane of louvre blade more arbitrarily, width L 2=L-L 1, so that at 20 °≤H≤β of sun altitude Ca 'Reflection ray can not deflect into light and the louvre blade 20 inboard horizontal plane angles that sun face 1 and the deflection of a louvre blade 20 imports and remains on more than 50 ° under the situation.
Confirm β in the reality Ia 'Outer end points a ', β Ic 'Inner end point c ' and β Ig 'Inner end point c ' reposition g ' all to depart from certain distance with the inboard laterally and become a ", c " and g along the louvre blade horizontal direction ", so that reflection ray can not arrive on the last one adjacent louvre blade, promptly use β Ia "β above replacing in the formula Ia ', use β Ic "Substituted beta Ic ', use β Ig "Substituted beta Ig ', generally get β Ia "Ia '-(0 °~3 °), β Ic "Ic '-(0 °~3 °) and β Ig "Ig '-(0 °~3 °).In addition, β Ca 'Different because of the cross section of louvre blade, its excursion is β Ca '=30 °~35 °.
Fig. 8 a~Fig. 8 i, Fig. 9 a~Fig. 9 i, Figure 10 a~Figure 10 i, Figure 11 a~Figure 11 i have shown linear, V font respectively, eighty percent discount is linear is applied to blinds sunshade light-conducting system top and the bottom, imports situation in the light retro-reflection of different sun altitude H and deflection with the waveform louvre blade; Dotted line is represented direct sunlight among the above-mentioned figure; Corresponding with it solid line is represented by the light of blade retro-reflection or deflecting reflection; H is a sun altitude; A among the figure (is that Fig. 8 a, Fig. 9 a, Figure 10 a, Figure 11 are a) for dual-functional louver blade sun face light retro-reflection situation to different sun altitude H up the time, at high sun altitude H (H>β Ca ') situation, drop on the louvre blade direct sunlight all by retro-reflection to outdoor, at low sun altitude H (H≤β Ca ') situation, if the part that louvre blade still during horizontal setting, then drops on the direct sunlight on the louvre blade by the louvre blade retro-reflection to the light guiding surface of a last adjacent louvre blade; Be reflected to outdoor then; Produce dazzle in the direct inlet chamber of another part, therefore, at low sun altitude H (H≤β Ca ') situation needs louvre blade is down rotated a corresponding angle
Figure BSA00000196151600111
Make direct sunlight directly in the inlet chamber; B among the figure (being Fig. 8 b, Fig. 9 b, Figure 10 b, Figure 11 b) rotates an angle up and down for the dual-functional louver blade sun face
Figure BSA00000196151600112
The time to the sunray retro-reflection situation of different sun altitude H, no matter at high sun altitude H (H>β Ca ') still at low sun altitude H (H≤β Ca ') situation, drop on the louvre blade direct sunlight all by retro-reflection to outdoor, this means, in summer, when we one day not in the room or during office, can dual-functional louver blade be adjusted to this position; C among the figure (being Fig. 8 c, Fig. 9 c, Figure 10 c, Figure 11 c) is for rotating an angle up and down from the above dual-functional louver blade light guiding surface of flooring 1.8m
Figure BSA00000196151600113
The time to low sun altitude H (H≤β Ca ') sunray retro-reflection and deflection import situation, d among the figure (being Fig. 8 d, Fig. 9 d, Figure 10 d, Figure 11 d) is for from the above dual-functional louver blade light guiding surface of flooring 1.8m up and horizontal setting
Figure BSA00000196151600114
The time to high sun altitude H (H>β Ca ') sunray retro-reflection and deflection import situation; In 20 °≤H of sun altitude≤45 ° scope, drop on direct sunlight on the louvre blade all be deflected import to indoor, outside 20 °≤H of sun altitude≤45 ° scope; Drop on a part of direct sunlight on the louvre blade be deflected import to indoor; A part is reflected on the sun face of an adjacent louvre blade, is deflected then to reflex to outdoorly, can not produce dazzle; E among the figure (being Fig. 8 e, Fig. 9 e, Figure 10 e, Figure 11 e) rotates an angle up and down for the dual-functional louver blade light guiding surface below the 1.8m of flooring The time to low sun altitude H (H≤β Ca ') sunray retro-reflection and deflection import situation, f among the figure (being Fig. 8 f, Fig. 9 f, Figure 10 f, Figure 11 f) for the dual-functional louver blade light guiding surface below the 1.8m of flooring up and horizontal setting
Figure BSA00000196151600116
The time to high sun altitude H (H>β Ca ') sunray retro-reflection and deflection import situation, in 20 °≤H of sun altitude≤45 ° scope, drop on a part of direct sunlight on the louvre blade be deflected import to indoor; Another part by retro-reflection to outdoor, in sun altitude H>45 °, drop on the louvre blade direct sunlight all by retro-reflection to outdoor; Can not produce dazzle, in sun altitude H<20 °, the direct sunlight that drops on the louvre blade at first is reflected on the sun face of an adjacent louvre blade; And then be deflected reflex to outdoor; Also can not produce dazzle, hence one can see that, and the light guiding surface of dual-functional louver blade also can be advantageously applied to winter; Also summer can be advantageously applied to, season in spring and autumn (sun altitude H is higher) can also be advantageously applied to; G among the figure (being Fig. 8 g, Fig. 9 g, Figure 10 g, Figure 11 g) is for from the sun face of the above dual-functional louver blade of flooring 1.8m and light guiding surface sunray retro-reflection and the deflection importing situation when change transposition neatly summer with sun altitude; H among the figure (being Fig. 8 h, Fig. 9 h, Figure 10 h, Figure 11 h) is the sun face of the dual-functional louver blade below the 1.8m of flooring and light guiding surface sunray retro-reflection and the deflection importing situation when change transposition neatly summer with sun altitude; I among the figure (being Fig. 8 i, Fig. 9 i, Figure 10 i, Figure 11 i) is sunray retro-reflection and deflection importing situation when the sun face of the above dual-functional louver blade of flooring 1.8m and light guiding surface change transposition neatly with sun altitude in the winter time; Sunray retro-reflection and deflection importing situation when j among the figure (being Fig. 8 j, Fig. 9 j, Figure 10 j, Figure 11 j) changes transposition neatly with sun altitude in the winter time for the sun face of the dual-functional louver blade below the 1.8m of flooring and light guiding surface; As can be seen from the figure; By above-mentioned cross section is that the various blinds sunshade light-conducting systems that the dual-functional louver blade of arbitrary shape constitutes can reach the retro-reflection of control direct sunlight and the optimization of deflection import volume according to conversion in season and people's concrete needs; Keep very high perspective rate simultaneously; Satisfy people's the demand that exchanges with the vision of scenery outside window, for sun altitude H≤β Ca 'Ca '=30 °~35 °) direct sunlight also can be at the retro-reflection and the deflection import volume that keep control direct sunlight under very high perspective rate (reaching about the 50% at least) situation; Compare with blinds sunshade light-conducting system in the past; Blinds system number of operations only needs 2 times in one day, has removed traditional blinds and has needed constantly to rotate the trouble that blinds adapts to the variation of sun altitude.

Claims (17)

1. dual-functional louver blade; Comprise blade (10) and switching mechanism thereof, it is characterized in that: blade simultaneously is the outdoor sun face (1) of sunray reflected back that is used for shining on it, and another side is to be used for all or part of sunray that shines on it is imported to indoor light guiding surface (3); Switching mechanism orders about blade rotation; And can make sun face (1) and light guiding surface (3) transposition, and the sun face of blade (1) is provided with miniature tooth, and the light guiding surface of blade (3) partly or entirely is provided with miniature tooth.
2. a kind of dual-functional louver blade according to claim 1 is characterized in that: light guiding surface is up the time, the miniature tooth of light guiding surface by two kinds of the outside and inside parts not isodont form.
3. a kind of dual-functional louver blade according to claim 1 is characterized in that: the Outboard Sections of the miniature tooth of said light guiding surface is for playing the suitable tooth or the pawl of deflection importing effect to direct sunlight, inside part is a shiny surface.
4. a kind of dual-functional louver blade according to claim 3 is characterized in that: said Outboard Sections is along the width L of tooth or pawl 1=0~L, the width L of inside part shiny surface 2=L-L 1, wherein L is the width of blade.
5. a kind of dual-functional louver blade according to claim 2; It is characterized in that: the Outboard Sections of the miniature tooth of said light guiding surface is the retro-reflection tooth that direct sunlight plays the retro-reflection effect, and inside part is for playing the suitable tooth or the pawl of deflection importing effect to direct sunlight.
6. a kind of dual-functional louver blade according to claim 5 is characterized in that: the width L of said Outboard Sections retro-reflection tooth 1=L/2~2L/3, inside part is along tooth or pawl width L 2=L-L 1, wherein L is the width of blade.
7. a kind of dual-functional louver blade according to claim 5; It is characterized in that: the suitable tooth of the miniature tooth inside part (42) of light guiding surface or pawl comprise two the adjacent flank of tooth first flank of tooth (6) and second flank of tooth (5); First flank of tooth (6) is vertical each other with second flank of tooth (5), second flank of tooth (5) and horizontal plane angle α HOptimum value choose and be: is that rotating shaft is rotated counterclockwise an angle with louvre blade with the mid point of width Make inner end point (c) of louvre blade turn to reposition (g); Last one adjacent louvre blade inner end point (c ') turns to reposition (g '); The outer end points (a) of louvre blade turns to reposition (f); The outer end points (a ') of last one adjacent louvre blade turns to reposition (f '), the line of the reposition (f ') after the reposition (g) after the inner end point (c) of louvre blade rotates rotates with the outer end points (a ') of last one adjacent louvre blade and the angle β of louvre blade outside horizontal plane Gf '=H=20 °, press α again H=(β Ig '-H)/2 calculate β Ig 'Be the louvre blade line of the reposition (g ') of (i) and last one adjacent louvre blade inner end point (c ') and the angle of the inboard horizontal plane of louvre blade more arbitrarily.
8. a kind of dual-functional louver blade according to claim 1; It is characterized in that: miniature tooth is for playing the retro-reflection tooth of retro-reflection effect to direct sunlight; Described retro-reflection tooth comprises two the adjacent flank of tooth first flank of tooth (6) and second flank of tooth (5), and first flank of tooth (6) is vertical each other with second flank of tooth (5).
9. a kind of dual-functional louver blade according to claim 8 is characterized in that: second flank of tooth (5) of retro-reflection tooth and the angle of horizontal plane HExcursion can be by 90 °-(β Ia '+ H)/2≤α H≤90 °-(β Ia+ confirm that H)/2 wherein H is a sun altitude, β Ia 'Be (i) more arbitrarily and the line of the outer end points (a ') of last one adjacent louvre blade and the angle of louvre blade outside horizontal plane of louvre blade, β IaAny 1 i and the line of the outer end points (a) of louvre blade and the angle of louvre blade outside horizontal plane for louvre blade.
10. a kind of dual-functional louver blade according to claim 8 is characterized in that: second flank of tooth (5) of retro-reflection tooth and horizontal plane angle α HThe optimum value design formulas be α H=90 °-(β Ia '+ H)/2, H=β in the formula Ca ', β Ia 'Be (i) more arbitrarily and the line of the outer end points (a ') of last one adjacent louvre blade and the angle of louvre blade outside horizontal plane of louvre blade, β Ca 'Be inner end point c and the line of the outer end points (a ') of last one adjacent louvre blade and the angle of louvre blade outside horizontal plane of louvre blade, its excursion is β Ca '=30 °~35 °.
11. a kind of dual-functional louver blade according to claim 1; It is characterized in that: the miniature tooth of said light guiding surface is the suitable tooth that direct sunlight is played deflection importing effect; Said suitable tooth comprises two the adjacent flank of tooth first flank of tooth (6) and second flank of tooth (5), and first flank of tooth (6) is vertical each other with second flank of tooth (5).
12. a kind of dual-functional louver blade according to claim 1; It is characterized in that: the miniature tooth of said light guiding surface is the pawl that direct sunlight is played deflection importing effect; Described pawl comprises two the adjacent flank of tooth first flank of tooth (6) and second flank of tooth (5); First flank of tooth (6) is vertical each other with second flank of tooth (5); Be radiated at a part on second flank of tooth (5) and direct sunlight deflection imported to indoor, another part direct sunlight is deflected on first flank of tooth (6) outdoor aerial along sunlight incident direction reflected back by first flank of tooth (6) again.
13., it is characterized in that according to claim 11 or 12 described a kind of dual-functional louver blades: light guiding surface up the time along the angle of second flank of tooth (5) with the horizontal plane of tooth or pawl HExcursion can be by (β Ic-H)/2≤α H≤(β Ic '-confirm that H)/2 wherein H is a sun altitude, β Ic 'Be the angle of the line of (i) and last one adjacent louvre blade inner end point (c ') and the inboard horizontal plane of louvre blade more arbitrarily on the louvre blade light guiding surface, β IcBe the angle of the line of (i) and inner end point (c) and the inboard horizontal plane of louvre blade more arbitrarily on the light guiding surface of louvre blade.
14., it is characterized in that according to claim 11 or 12 described a kind of dual-functional louver blades: light guiding surface up the time along second flank of tooth (5) and horizontal plane angle α of tooth or pawl HThe optimum value design formulas be α H=(β Ix-H)/2, and in the formula H=45 °, β IxBe (i) reflection ray of locating and the angle of horizontal plane more arbitrarily on the louvre blade light guiding surface.
15. a kind of dual-functional louver blade according to claim 1 and 2 is characterized in that: the cross section of said blade (1) is one or more the combination in any in waveform, linear, the broken line shape.
16. a kind of dual-functional louver blade according to claim 1 and 2 is characterized in that: described blade (1) is a flat board, through once forming a folding part (11) and two folding parts (12) after the bending, makes that the cross section of blade (1) is the V-shape broken line.
17. a kind of dual-functional louver blade according to claim 1 and 2; It is characterized in that: the outer end points (a) of blade (10) and the horizontal range of inner end point (c) are the width L of blade (10); The vertical distance of adjacent two blades (10) inner end points (c) is the pitch D of blade (10), and pitch D with the ratio of width L the best is: D/L=0.7.
CN2010102303710A 2010-07-19 2010-07-19 Dual-functional louver blade Expired - Fee Related CN101899942B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2010102303710A CN101899942B (en) 2010-07-19 2010-07-19 Dual-functional louver blade
PCT/CN2011/001180 WO2012009956A1 (en) 2010-07-19 2011-07-19 Dual-function blind blade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010102303710A CN101899942B (en) 2010-07-19 2010-07-19 Dual-functional louver blade

Publications (2)

Publication Number Publication Date
CN101899942A CN101899942A (en) 2010-12-01
CN101899942B true CN101899942B (en) 2012-05-23

Family

ID=43225823

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010102303710A Expired - Fee Related CN101899942B (en) 2010-07-19 2010-07-19 Dual-functional louver blade

Country Status (2)

Country Link
CN (1) CN101899942B (en)
WO (1) WO2012009956A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101899942B (en) * 2010-07-19 2012-05-23 杭州欧卡索拉科技有限公司 Dual-functional louver blade
CN105178831B (en) * 2015-08-03 2016-11-30 杭州欧栅美叶科技有限公司 A kind of Optimization Design of shutter sunshade leaded light louvre blade

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB288434A (en) * 1927-04-11 1928-04-12 Andrew Lawrence Riker Improvements in ventilators
CA1127896A (en) * 1976-07-19 1982-07-20 Michael D. Boyd Radiant energy reflector device
US4509825A (en) * 1983-06-27 1985-04-09 Hallmark Cards, Inc. Directing and controlling the distribution of radiant energy
DE19503293A1 (en) * 1995-02-02 1996-08-08 Spl Solar Patent Lizenz Holdin Edged blind slat
AT411613B (en) * 1997-12-09 2004-03-25 Koster Helmut SUN PROTECTION SYSTEM WITH SUN PROTECTION BLADES THAT HAVE A TOOTHED TOP
CN2653102Y (en) * 2003-09-03 2004-11-03 林世明 Louver window curtain
WO2008129467A1 (en) * 2007-04-20 2008-10-30 Philips Intellectual Property & Standards Gmbh Daylight deflection system with integrated artificial light source
CN101762861B (en) * 2008-11-19 2012-09-05 李钊明 Prism shutter with anti-infrared and astigmatism functions
KR101233789B1 (en) * 2008-12-31 2013-02-19 이동훈 Microlouver System
CN101899942B (en) * 2010-07-19 2012-05-23 杭州欧卡索拉科技有限公司 Dual-functional louver blade

Also Published As

Publication number Publication date
WO2012009956A1 (en) 2012-01-26
CN101899942A (en) 2010-12-01

Similar Documents

Publication Publication Date Title
CN101818616B (en) Multi-piece combined lifting type louver blade
CN101845934B (en) Multi-piece combined turnover-type louver blade
Maleki Shading: passive cooling and energy conservation in buildings
US20180106503A1 (en) Solar collector having fresnel mirrors
CN101899942B (en) Dual-functional louver blade
CN102160195A (en) Photovoltaic call apparatus
CN206293452U (en) A kind of photovoltaic module and photovoltaic curtain wall
CN201809911U (en) Translating and sliding support type photovoltaic sun shading system
CN101787851B (en) Multiple combined-type saw-tooth louvre blade
CN206380392U (en) A kind of rotatable lighting roof in greenhouse
CN108729691A (en) A kind of active lighting system and method
CN109594901B (en) Three-edged variable-lighting-rate shutter
CN202039758U (en) Combined shutter blade and shutter of same
CN101832093B (en) Three-blade combined louver blade
CN101818615B (en) Two-piece combined arc-shaped louver blade and lifting type anti-theft louver thereof
EP2626649A1 (en) Screens with arranged solar modules and independently controlled intermediate screens
CN103388446B (en) Multi-blade-combined saw toothed louvre blade
CN210508945U (en) Automatic tracking type shutter photovoltaic window
CN101806189B (en) Multiblade combined flat plate louver blade
CN107178300B (en) The hollow glass of built-in louver
CN101818614B (en) Two-piece combined louver blade and lifting type anti-theft louver thereof
CN102536088A (en) Combined type louvre blade and blind window comprising same
CN201972575U (en) Louver blade and louver
CN2844378Y (en) A kind of multi-functional shutter blade
CN215056874U (en) Photovoltaic shutter

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20190904

Address after: 311800 No. 18, Liuzhuang Village, Yingdian Street Town, Zhuji City, Shaoxing City, Zhejiang Province

Patentee after: Zhuji Longpai Energy Saving Technology Co., Ltd.

Address before: 310051 Room 509, Block C, 5th Floor, No. 3 Tower, No. 351 Changhe Road, Binjiang District, Hangzhou City, Zhejiang Province

Patentee before: Hangzhou Oka Suola Technology Co., Ltd.

TR01 Transfer of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120523

Termination date: 20210719

CF01 Termination of patent right due to non-payment of annual fee