CN215636670U - Desktop high-quality lighting system - Google Patents
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Abstract
The utility model discloses a desktop high-quality lighting system, and relates to the field of desktop lighting. The traditional desktop illumination mostly adopts a desk lamp, and has the problems of poor illuminance uniformity, huge difference between the upper and lower light and shade of sight, serious standard exceeding of brightness, glare caused by reflection of paper surface, shadow during writing and drawing and the like. The utility model is composed of a large-area planar lamp body, a supporting/connecting piece and a control driving power circuit, and is convenient for the lamp body to be accommodated and unfolded aiming at accommodating structures with different table-shaped designs. According to the utility model, through a low-altitude and vertical lighting scheme that the lamp body covers the desktop in a large area, emits light with low brightness and is higher than eyes by a certain comfortable distance, and coordinates the relation between the light-emitting area, the brightness and the installation height, the purpose of providing a soft, uniform and high-quality lighting environment without light and shade difference and low reflection glare and greatly improving even no shadow for the desktop on the premise of meeting the requirement of illumination is achieved, the 5-degree optical difficult problems existing in desk lamp lighting are solved, and the desk lamp is suitable for desktops for read-write operation, precise operation and the like.
Description
Technical Field
The utility model relates to the technical field of desktop illumination, in particular to a desktop high-quality illumination system which is suitable for read-write operation, precise operation and the like and has higher requirements on illumination quality.
Background
The desk lamp is characterized by being small and exquisite, convenient to move and the like, and can be widely applied to desktop lighting environments of learning and working in a short-distance lighting mode, the logic premise of the scheme is that a common lighting source with enough illumination is provided for a large default environment where a desktop is located, the desk lamp only plays a role in strengthening local lighting of the desktop, however, the practical situation and the assumed ideal environment are often greatly different, firstly, the desk lamp has an environmental light source and the provided illumination is far insufficient, secondly, a user does not turn on the desk lamp due to habits, inconvenient switching and the like without or even if the common light source exists, desktop lighting is mainly or completely provided by the desk lamp under the two conditions, the desk lamp exceeds the lighting capacity designed by the desk lamp, and particularly, the desk lamp has great influence on the user, particularly the eyes of students, in environments with higher requirements on illumination quality such as long-time reading and precise operation, this is embodied as follows.
Firstly, the luminance of the luminous surface exceeds the standard seriously: because the desk lamp needs to be convenient, beautiful and overturn-proof, the luminous surface of the lamp cap cannot be made very large, mostly in the range of dozens to two-three hundred square centimeters, and in order to meet the requirement of desktop illumination, the brightness of the luminous surface of the desk lamp is mostly 10000cd-30000cd/m2Far exceeding the current national standard of' not more than 2000cd/m2Numerical value, if the height of the lamp post is not limited, direct glare is serious, and national detection cannot be passed; in order to achieve the purpose that the brightness of a light-emitting surface does not exceed the standard, the scheme adopted at present is that various micro concave-convex lines are made on a light-emitting surface diffusion lampshade, and the method can only slightly improve the glare angle and cannot radically change the problem that the brightness greatly exceeds the standard; secondly, the height of a lamp post is limited, and according to a detection method about the brightness of the light emitting surface of the reading and writing operation desk lamp in the national standard, the height of a probe of a brightness meter is 40cm away from the height of a desktop, so that the height of the lamp post of most desk lamps is designed to be about 40cm, the brightness is too much to be detected, and the method seems to avoid the detection of the country but causes the next problem.
Secondly, the difference between the upper and lower brightness of the sight of the user is huge: if the desk lamp is placed on a desktop for use, the height of 40cm is basically flush with the height of human eyes, the difference between the upper and lower light and shade of the eyes is large, the sight line is blocked, if the desk lamp is used at a raised position, the brightness of a light-emitting surface far exceeds the standard, direct glare is serious, and the desk lamp is positioned in a dilemma! Moreover, the height of the children in the lower grades is far lower than that of the adults, and the visual angle non-glare of the adults is not equal to that of the children; the existing desk lamp products increase the background brightness by a back weak light emitting mode and improve the problem of poor brightness, but the scheme is limited by the requirement of back light source glare, and the improvement effect is extremely limited.
Thirdly, the uniformity of the desktop illuminance is poor: because the light-emitting area of the desk lamp is small, the height of the lamp holder is lower than that of the desk top, and therefore the phenomenon that the diffusion illumination intensity of the desk top is sharply reduced along the periphery by taking the projection of the light-emitting area of the desk lamp as the center, namely the phenomenon that the middle is bright and the periphery is dark, is often said. According to the national standard specified reading and writing operation desk lamp, a projection point of a geometric center of a light emitting surface of the desk lamp on a desktop is taken as a reference, the illuminance uniformity in a fan-shaped area facing a person and having a radius of 30cm is not more than 3, and the illuminance uniformity in an annulus from 30cm to 50cm is not more than 3, so that the illuminance ratio of two ends of the desktop with the length of 1 meter to the center can be 9 times even the national standard requirement is met, and the existing products are much more serious in practical application; some attempts to control the distribution of light by means of a polarizing lens, a reflector, etc. to achieve the purpose of uniform desktop illuminance have been made, but this method further enhances the beam-focusing directivity of light, resulting in further increase of the contrast with the ambient brightness.
Fourthly, the reflection glare of the paper surface is obvious: because the light-emitting surface brightness of the desk lamp is very high, and the desk lamp is generally positioned in front of a person for a certain distance during use, the light source and a desktop reading/writing/operating area form a certain inclination angle instead of being vertical, the light source, paper and eyes can easily form a reflection angle condition in a large range during reading and writing operation, strong light is directly reflected into the eyes to cause reflection glare, the content of a paper surface of the reflection area is difficult to see clearly, especially the paper with high reflectivity such as smooth white paper, art paper and the like is more serious, although the reading angle modes of changing the position of the desk lamp and adjusting a book can be adopted to avoid as much as possible, due to the characteristics of easy movement of the desk lamp and the diversity of the writing and reading modes, a user, especially a child, can be ensured to be in a scientific and reasonable position in an autonomous mode every time, and therefore, the reflection glare is difficult to avoid.
Fifthly, shading: because the desk lamp is a point light source relative to the desktop, the light is diffused in one direction all around, the backlight surface can form obvious shadow in the processes of writing, drawing, operation and the like, and especially, the desk lamp can not provide normal illumination when the book is in an upright state and the drawing board is upright at a large angle.
Patent application No. 201810859400.6 discloses a direct current does not have stroboscopic shadowless desktop lighting system, and its scheme is through setting up a plurality of punctiform light sources towards lower place desktop cross illumination on the bookshelf, realizes desktop shadowless illuminating effect, and this scheme light of gathering a bundle is towards the people's eye direction, very easily causes strong direct glare and paper reflection glare, and the cooperation of multiple point light source cross angle is difficult to adjust and maintain.
Patent No. 200520096550.4 discloses an overhead desk lamp, which adopts the technical scheme that the brightness of a light-emitting surface is not limited, and glare is prevented in a way of lighting by greatly raising the height of a light source to be beyond the sight range of human eyes, and the core of the scheme is the same as that of the traditional indoor overhead lighting mode.
At present, large-area planar lamp bodies are widely applied to indoor scenes such as offices, businesses, schools and the like, are installed at the top of a surface to be illuminated at a relatively high altitude position, and are controlled to glare in a mode of avoiding a sight glare angle and increasing a grating shading angle at a high altitude, and are not reduced in brightness to reach a qualified glare value range, so that the problems of destroying decoration style, needing additional construction at a later stage and the like are generally unacceptable when the mode is used for household desk illumination.
Therefore, from the prior art, in the field of desktop illumination such as reading and writing operation and precise operation, both a local overhead illumination mode of a top lamp and a close-range illumination mode of a desk lamp which is not higher than eyes are adopted, and the problems which are difficult to overcome respectively are faced.
Disclosure of Invention
In order to solve the above problems, the present invention provides a high quality desktop lighting system, different from the existing lighting design idea, the lighting system selects a low-altitude lighting mode in the sight line higher than the eyes of the user by a certain comfortable distance, and forms a low-altitude and vertical lighting scheme with large area desktop coverage, low-luminance lighting, and a certain comfortable distance higher than the eyes by the unified coordination design of four factors of the lighting area, the luminance, the installation height and the lighting angle of the lamp body.
In order to achieve the above object, the present invention provides a desktop high-quality lighting system, which is realized by:
the lighting system comprises a large-area planar lamp body, a supporting/connecting piece and a control driving power circuit;
the supporting/connecting piece is arranged at the rear part of the desktop or on the bookshelf;
the large-area surface-shaped lamp body is connected to the supporting/connecting piece, the light-emitting surface of the large-area surface-shaped lamp body is downwards arranged above a working and learning area of the desktop, and for the storable lamp body, the large-area surface-shaped lamp body can reach the upper part of the working and learning area of the desktop when being unfolded to the maximum position, and the characteristic scope of the utility model is as follows: when the light emitting surface of the lamp body above the desktop reaches the maximum shape and position, the downward orthographic projection of the lamp body can enter the working and learning area range of the desktop except the occupied area of fixed objects such as a bookshelf and the like;
the luminous surface of the large-area planar lamp body is higher than eyes of a user by a certain comfortable distance and is maximally within 100cm from the desktop; the scope of the claims for the present features: the height of the light emitting surface of the lamp body can be adjusted and can be within the range of 100cm from the height of the desk top above the eyes of a user;
the large-area planar lamp body emits light through the plurality of LED lamp beads inside, the light is diffused through the diffusion layer on the front surface of the lamp body to form a uniform light emitting surface, and the diffusion layer can be a soft film, a UV soft film or acrylic; or the large-area planar lamp body emits light through the OLED flexible panel to form a light emitting surface, so that a diffusion layer is not needed; the LED light-emitting lamp beads or the OLED flexible panel are connected with the control driving power circuit, the control driving power circuit provides power for the LED light-emitting lamp beads or the OLED flexible panel, and electrical parameters are controlled according to the requirements of design, installation height or application and the like, so that the functions of controlling the brightness of a light-emitting surface and the like are realized;
the horizontal area of the large-area planar lamp body is not less than 1800cm2；
The method for determining the maximum height of the large-area planar lamp bodies with different areas and shapes from the table top comprises the following steps: firstly, determining index parameters such as illumination level, light emitting surface brightness/glare index and the like according to the requirements of different working and learning scenes; secondly, on the premise that the brightness/glare index of the light-emitting surface is controlled to meet the requirement by controlling the driving power circuit, the brightness of the light-emitting surface is maximized, the lamp body is gradually increased from the height of eyes of a user, meanwhile, the illumination of each measured point on the desktop is measured, and if the illumination of the worst point is higher than the required value, the measurement is continued; and thirdly, repeating the process until the lamp body rises to a certain height, and the measured illumination value of the worst point is reduced to the lower limit of the required value, wherein the height is the maximum height of the measured lamp body from the table top, but the maximum height of the lamp body from the table top is not more than the limit value of the utility model.
Optionally, the large-area planar lamp body is formed by splicing a plurality of independent narrow and long strip-shaped lamp blocks into a bendable large-area planar lamp body, and a whole light emitting surface is formed at the part of the lamp body on the horizontal plane and emits light downwards towards the desktop; the support/connecting piece is a chute support, the vertical sections of the left and right chute supports are respectively vertically arranged at two ends of the rear part of the desktop, the upper part of the vertical section of the chute support is bent by an arc section to forwards extend a small part of necessary horizontal section, the notches of the left and right chute supports are opposite, the left and right sides of the bendable large-area planar lamp body respectively extend into the chutes of the left and right chute supports and form a bending surface along with the shape of the chute; when the bendable large-area planar lamp body slides backwards, the horizontal plane part of the bendable large-area planar lamp body enters the vertical section of the sliding groove through the arc-shaped bend to be stored, and after the lamp body is stored, at least one lamp block is arranged in the sliding groove of the horizontal section; when the lamp body is pulled out and unfolded, the lamp body positioned at the vertical section of the sliding groove is changed into a horizontal plane through the turning section, and after the lamp body extends out of the front end of the sliding groove, a supporting force is provided through a self-supporting structure of the lamp body, the horizontal plane is in a relatively rigid straight suspended state, so that an additional supporting piece is not needed, and in the same way, at least one lamp block is also ensured to be positioned in the vertical section at the rear part of the sliding groove after the lamp body extends out of the front end to be set with a limit position;
the left side and the right side of the bendable large-area planar lamp body are tightly connected with the lamp blocks by the connectors with enough tensile strength and flexibility through the front faces, or the front-face joints among the lamp blocks are hinged;
the back of the bendable large-area planar lamp body is connected to the head lamp block and the tail lamp block through a connecting body with enough tensile strength, flexibility and wear resistance, so that back tension is provided for the bendable large-area planar lamp body, and the connecting body on the back passes through the middle lamp block but is not fixed with all the middle lamp blocks; or the horizontal section of the sliding groove support adopts a multi-section sliding rail, and the two ends of the head lamp block are respectively connected with the front ends of the left and right multi-section sliding rails to provide support for the horizontal section of the bendable large-area planar lamp body which extends forwards, and the scheme can cancel the connector on the back of the lamp body.
Optionally, when the bendable large-area planar lamp body has a connector at the back, the end of the connector at the back is connected with the head and/or tail lamp block through the spring so as to compensate the slight change of the required length of the connector at the back in the process of passing through the arc section of the sliding groove of the lamp block, and meanwhile, the bendable large-area planar lamp body provides buffering and protection when the horizontal plane is subjected to downward pressure exceeding a design value in an extending state.
Optionally, a movable component is arranged on the lamp block at the rear part of the bendable large-area planar lamp body and is matched with a blocking component arranged at a preset position to form a limiting device, and the movable component is usually pulled out to limit when the bendable large-area planar lamp body extends forwards to reach the farthest design position; when needing to be maintained and disassembled, the lamp body can be reset, and the bendable large-area planar lamp body can be smoothly taken out.
Optionally, a cover plate is arranged on the back of the left and right chute supports.
Optionally, set up coordinated control device, let the lamp piece light source that gets into spout arc-shaped section and rear portion vertical section extinguish automatically, and the lamp piece that is located the horizontal segment is not influenced, can adopt following two kinds of modes to realize: A. the lamp blocks are electrically connected in parallel through the power supply main line, each lamp block is provided with a switch, and the switch is automatically realized when the lamp blocks slide back and forth through the shifting device at the preset point position; B. the power supply is led into the lamp block on the horizontal plane from the horizontal section of the sliding groove support through a sliding contact point, or is led into the power supply through the first luminous lamp block in the front of the horizontal plane, the back faces of the two adjacent lamp blocks can be separated when the lamp blocks pass through the arc-shaped section of the sliding groove, the principle of tight connection is adopted in the straight section, and the power supply main lines of the lamp blocks are electrically connected in series in a mode that the contact points are arranged on the adjacent faces between the lamp blocks.
Optionally, set up the gyro wheel at every lamp piece both ends, reduce the resistance of flexible large tracts of land plane shape lamp body in the spout in-process that slides.
Optionally, a tension spring or an elastic rubber band is additionally arranged on the lamp block at the rear part of the bendable large-area planar lamp body, and the other end of the tension spring or the elastic rubber band is fixed on the chute support, or the bookshelf back plate, or the back cover plate, so that tension compensation is provided for the gravity of the lamp block entering the vertical section of the chute support.
Optionally, the large-area planar lamp body is an integral large-area planar lamp body, and the front and rear width of the large-area planar lamp body is not less than 16cm and not more than 40 cm; support/connecting piece be no less than two and control separately setting, its mounting means is: A. the support/connecting piece is a sectional type slide rail, the integral large-area planar lamp body is connected with the sectional type slide rail, the sectional type slide rail is horizontally arranged at the top of the bookshelf, or a horizontal cavity reserved in the middle or a lower plane of a first layer horizontal supporting plate on the lower part, and the integral large-area planar lamp body can be accommodated in the bookshelf in a horizontal sliding mode; B. the support/connecting piece is an articulated piece, the integral large-area planar lamp body is articulated with the front edge of the bookshelf through the articulated piece, and the integral large-area planar lamp body can be stored on the bookshelf through upwards overturning.
Optionally, the height of the light emitting surface of the lamp body from the table top is 50cm to 80 cm.
Optionally, the left and right lengths of the lamp body are not less than 60cm, the long edges of the lamp body and the long edges of the table top are in the same direction, and the horizontal area of the lamp body is not less than2000cm2。
Optionally, when the lamp body is unfolded to the maximum, the horizontal plane size is matched with the size of the horizontal plane blank area of the desktop except the bookshelf occupying area, the horizontal area of the lamp body is not less than 80% of the area of the horizontal plane blank area of the desktop except the bookshelf occupying area, and full-coverage desktop illumination is basically achieved.
Optionally, the lighting system further includes a set of automatic/intelligent control device, so as to realize functions of intelligent brightness and color temperature adjustment, automatic lamp body storage and expansion, lamp body touch prevention, radar/infrared induction, voice control, remote control, man-machine conversation and the like.
Optionally, the bendable large-area planar lamp body preferably adopts an LED direct light emitting mode, and the integral large-area planar lamp body preferably adopts an LED side light emitting mode.
Optionally, when a direct light emitting mode is adopted, in order to ensure that the brightness of a light emitting surface is uniform and has no dark area, the LED light emitting lamp beads in the lamp block are arranged at equal intervals, and the interval is not greater than the thickness of the lamp block; if a large-angle diffusion lens is covered on the lamp beads, the distance between the LED light-emitting lamp beads can be increased, and the distance is determined according to the diffusion angle of the diffusion lens.
Compared with the prior art, the utility model has the beneficial effects that:
1. the brightness of the luminous surface is far lower than that of a desk lamp, and the light is soft and comfortable: taking the 120cm by 60cm conventional standard desktop scene of example 1 as an example, the horizontal plane luminous area of the bendable large-area planar lamp body is about 110cm by 52cm =5720cm2While a large circular table lamp with a diameter of 20cm has a light-emitting area of only about 200cm2The ratio of the light emitting area is up to 28.6 times! Theoretically, the brightness of the luminous surface of the lighting system only needs 1/28!of the desk lamp! Even if the light-emitting area of the lamp body matched with the minimum desktop in the utility model is about 7.5 times of that of the desk lamp, in the practical application process, although the light-emitting surface height and the lighting area of the lighting system are larger than those of the desk lamp, the required luminous flux is increased, the brightness difference is still huge, and the lighting system determines the maximum brightness/glare value under the condition of ensuring that the brightness/glare value meets the requirement according to the light-emitting area and the scene lighting requirement of different lamp bodiesThe installation height is large, so that the light is soft and comfortable, the illumination requirement higher than eyes is met, and the desk lamp has essential difference from a desk lamp;
2. the brightness in the normal sight of the user is consistent, and no light and shade difference exists: the height of the traditional desk lamp is approximately level with the human eyes, and the difference between the upper and lower light and shade of the sight line can reach 100 times! When a user raises, lowers and rotates in the normal use process, the eyes of the user need to be continuously adjusted to adapt to the environment, and the eyes are injured; the light emitting surface of the illumination system is a certain comfortable distance above the eyes of a user, the height is high, the illumination range is large, and the eyes are positioned in the whole brightness consistency environment, so the brightness is consistent in the visual line range in the normal use process, and no light and shade difference exists;
3. the whole illumination of the desktop is uniform: under the premise that no measure is taken to change the optical path, the illuminance uniformity of the illuminated surface is positively correlated with the size of the scattering light-emitting surface and the installation height; the desk lamp has small light-emitting area and low height, and light is concentrated in a small part of area with the desk lamp as the center, so that the illumination intensity is sharply reduced along with the increase of the distance towards the two ends of the desk surface, for example, a conventional standard desk surface of 120cm by 60cm, when the desk lamp is used for illumination, the illumination intensity of the center of the desk surface and the two ends of the desk surface can be different by more than 10 times! The lighting area of the lamp body of the lighting system is far larger than that of the desk lamp, the mounting height is also higher, the long edges are in the same direction as the long edges of the desktop, so that the illumination at the two ends of the desktop is greatly improved, and when the area of the lamp body is matched with the size of the desktop, the illumination of the whole desktop is very uniform when the lighting system realizes the lighting of the full-coverage desktop;
4. the conventional paper surface reflection glare is basically eliminated: the desk lamp is high in brightness and is positioned in front of an illuminated area for work and study, so that the desk lamp can reflect light to human eyes easily in a large range through paper; the brightness required by the light emitting surface of the illumination system is far lower than that of a desk lamp, the intensity of reflected light passing through the paper with the same reflectivity on the desktop is also far lower than that of the desk lamp in direct proportion, the illumination system can vertically illuminate above the illuminated surface, and the reflection angle condition is difficult to form through the paper on the desktop and eyes, so that the reflection glare of the conventional paper surface is basically eliminated;
5. greatly improving or even basically eliminating shadow: the table lamp is a point light source relative to the desktop, the light emitting direction is single, the backlight surface is determined to have obvious shadows when pens, tools, hands, objects and the like are shielded in the processes of writing, drawing and operation, and the table lamp is basically unusable when a large angle is erected on a book and a desktop drawing board; the size of the light emitting surface of the illumination system is far larger than that of a desk lamp, the illumination system is similar to the shadowless lamp principle of an operating room, the shadow phenomenon can be eliminated greatly, the lamp body can cover the whole desktop to the maximum extent, the book and the drawing board can still have good illumination when standing at a large angle, the desktop with the length of 90cm and above is a common standard model desktop, the shadow can not be seen when the desk lamp is shielded by hands, pens and common tools suspended in the space in the learning and working process, the desktop with the length of 60cm-80cm and an extraordinary model is also capable of greatly improving the shadow effect, and the illumination system is very suitable for reading, writing, drawing and precise operation;
6. the beautiful view field environment is created, and the area of the desktop is not occupied: the flexible large-area planar lamp body preferably adopts a UV painting soft film light emitting surface, various exquisite pictures can be selected to be displayed above the sight line through light, the visual attractiveness is greatly improved, the eye nourishing effect is achieved, no desk lamp occupies the area and blocks the sight line on the desktop, and the desk lamp is neat and convenient;
7. the perfect storage problem that has solved: the storage mode is flexible and applicable to different desk types, such as furniture type complete set wood desks and integrally-assembled customized wood desks, and as the bookshelf is generally higher and wider, the integral large-area planar lamp body is preferably matched with the sectional type slide rail, and the complete hidden storage in the plane of the bookshelf is realized in a push-pull mode; the storage mode that the bendable large-area planar lamp body is matched with the sliding groove support is mainly designed for lifting student complete desks with middle and low bookshelves and ordinary smooth-surface desks, the width of the part exposed on the upper portion of the bookshelves after storage can be at least less than 10cm and less than half of the width of the bookshelves, the convenience and the attractive coordination of the application scene are greatly improved, and the storage mode is far superior to other storage modes;
in conclusion, the utility model integrally solves the 5-inch optical problems existing in reading and writing operation, precise operation and the like when the desktop is illuminated by the desk lamp at one time, also avoids the problems that the decoration style is damaged by an overhead illumination mode, additional construction is needed in later period and the like, provides a high-quality illumination environment for scenes of this kind, and plays an important role in protecting the eyesight of users, especially young students! The UV painting is convenient to store and unfold through a targeted storage structure design, so that the lighting system and the desk are integrated, a user can easily accept the UV painting, the UV painting is vivid and fine, the effects of eye nourishing and attractive appearance are achieved, and the commercialization prospect of the UV painting is greatly improved.
Drawings
FIG. 1 is a schematic view of an embodiment of a foldable large area flat lamp body of the present invention in an expanded state with a chute bracket applied to a set of lifting student desks;
FIG. 2 is a schematic view of a storage state of the embodiment of the bendable large-area planar lamp body of the present invention applied to a liftable complete set of student desks in cooperation with a sliding groove support;
FIG. 3 is a cross-sectional view taken along line A-A of the arcuate turnaround portion of the chute support of FIG. 2;
FIG. 4 is a cross-sectional view taken along line B-B of the entire side of the chute support of FIG. 2;
FIG. 5 is a front view of a middle light block of a bendable large area planar lamp body;
FIG. 6 is a side view of the long side of the middle block of the bendable large area planar lamp body;
FIG. 7 is an enlarged view of a portion E of FIG. 5;
FIG. 8 is an enlarged view of a portion F of FIG. 6;
FIG. 9 is an enlarged view of a portion G of FIG. 6;
FIG. 10 is a schematic view of the storage state of the embodiment of the furniture type wood desk set with the integrated large area planar lamp body and the three-section slide rail according to the present invention;
FIG. 11 is a schematic view of an embodiment of a furniture type wood desk set with an unfolded configuration of the integrated large area planar lamp body of the present invention in combination with a three-section rail;
the reference numbers illustrate: 1-bookshelf back plate, 2-bendable large-area planar lamp body, 201-first lamp block, 202-tail lamp block, 203-middle lamp block, 4-back steel wire rope, 401-adjusting screw, 5-touch button, 6-lower roller, 601-lower roller shaft (also hinged shaft), 7-upper roller, 701-upper roller shaft, 8-chute bracket, 9-soft film groove, 10-LED light-emitting lamp bead, 11-back cover plate, 12-bookshelf first layer horizontal partition plate, 13-integral large-area planar lamp body, 14-three-section sliding rail.
Detailed Description
The present invention is described in further detail below with reference to the attached drawings.
Example 1
Fig. 1 to 9 show an embodiment of a bendable large-area planar lamp body 2 of the present invention, which is used in a complete set of liftable student desks in cooperation with a chute support 8, in fig. 1, a left chute support 8 and a right chute support 8 are respectively vertically installed at two ends of the rear of a bookshelf back plate 1, a cover plate 11 is installed on the back of the chute support 8 to cover the whole back, the bendable large-area planar lamp body 2 is installed in a chute of the left chute support 8 and the right chute support 8, connection adjusting screws 401 of back wire ropes 4 are installed at two sides of the front edge surface to adjust the tightness of the back wire ropes 4 in the using process, and a touch button 5 is provided in the middle to adjust and control the illumination system, and brightness adjustment can be performed according to the requirements of installation height, learning operation mode, etc.; in the unfolding state, the front edge of the bendable large-area planar lamp body 2 can horizontally extend forwards and furthest to the vertical surface of the front edge of the desktop, and at the moment, at least 1 lamp block is arranged in the vertical section sliding groove behind the sliding groove support 8; fig. 2 is a schematic view of the embodiment in a storage state, after the bendable large-area planar lamp body 2 is stored in the rear vertical section chute, only a small part of the bendable large-area planar lamp body is exposed on a horizontal plane above the bookshelf;
in the present embodiment, as can be seen from the cross-sectional views of fig. 3 and fig. 4, the head lamp block 201 and the tail lamp block 202 of the bendable large-area planar lamp body 2 do not emit light, and all the other middle lamp blocks 203 are standard light-emitting lamp blocks, and at both ends of the lamp blocks, the front surfaces of the adjacent lamp blocks are hinged by a hinge shaft 601, which is also a common shaft of the lower rollers 6, and the wire rope 4 passes through the hole on the back surface inside the lamp block, and both ends of the wire rope are respectively connected to the head lamp block 201 and the tail lamp block 202, but are not fixed to all the middle lamp blocks 203; the back of the lamp block is also provided with an upper roller 7 which is arranged on an upper roller shaft 701, and the roller is used for reducing the friction force of the lamp block in the sliding process in the sliding groove; after the lamp blocks are stored, the lamp blocks can enter the arc-shaped section of the chute support 8 and the vertical section at the rear part, the front surfaces of the parts of the two ends of the lamp blocks, which extend into the chute, are made into an arc shape, the radian is consistent with the inner radian of the arc-shaped section of the chute support 8, so that the lamp blocks can smoothly pass through the arc-shaped section of the chute support 8 under the condition of ensuring the consistent hollow size in the chute, and the front surfaces of the parts of the two ends of the lamp blocks, which extend into the chute, can not be made into an arc shape if the distance of the lower idler wheel, which protrudes out of the front surface of the lamp blocks, meets the requirement; of course, the upper and lower rollers can be replaced by two rollers extending out from each end of the lamp block along the axial direction, and the lamp block extends into the sliding groove only through the four rollers at the two ends, so that the support is provided for the lamp block and the sliding friction force is reduced; the front surfaces of the head lamp block 201 and the tail lamp block 202 face the long edges of the middle lamp block, the soft film grooves 9 are formed in the two ends of the front surface of the middle lamp block 203, the soft film grooves 9 can be communicated with each other, the soft film grooves 9 in the front surfaces of the lamp blocks can be connected into a rectangle and used for clamping a light-transmitting soft film to cover the whole light-emitting surface, so that the light-transmitting soft film becomes a whole, the soft film can be sprayed with pictures, and the aesthetic feeling can be greatly enhanced;
fig. 5 to 9 show the front and long side views of the middle light block 203 and its partial enlarged view, the light block casing is preferably made of aluminum alloy, the long side of the casing is narrow so as not to block light, so that the light emitted through the soft film is more uniform, the light and dark stripes are prevented from being generated, the utilization rate of the light is improved, the LED light-emitting beads 10 are uniformly arranged on the back of the light block and face the front, and the emitted light is uniformly irradiated to the desktop after being diffused through the soft film.
Optionally, a front-side hinged mode of the lamp blocks is changed into a connection mode the same as that of the back-side steel wire rope 4, holes close to the front side are penetrated through the inner parts of the two ends of the lamp blocks, the two ends of the lamp blocks are respectively connected to the head lamp block 201 and the tail lamp block 202, the difference is that the front-side steel wire rope needs to be tensioned and seamlessly and tightly connected with the lamp blocks, the fit clearance between the steel wire holes and the front-side steel wire rope needs to be small, otherwise, a dislocation prevention structure needs to be arranged between the lamp blocks; B. the front surface of the lamp block is hinged to be changed into a mode that the front surface of the lamp block is tightly and fixedly connected with each lamp block through a strip-shaped narrow thin steel sheet.
Optionally, the horizontal section of the sliding groove support 8 is changed into a multi-section sliding rail, two ends of the head lamp block 201 are respectively connected to the front ends of the left and right multi-section sliding rails to provide support for the horizontal section of the bendable large-area planar lamp body 2 extending forwards, the back steel wire rope 4 can be omitted in the scheme, the width of the exposed lamp body part after the lamp body is stored can be far larger than that of the scheme adopting the back steel wire rope 4, the structure is complex, and the overall sense of the exposed sliding rail is poor; for example, 4-section type sliding rails are adopted, the length of each section is 20cm, the length of each section is overlapped by 6.66cm after the sliding rails are completely pulled out, the total effective length is about 60cm and the width of the table top is the same as that of the table top, but the length of the basic section is 20cm, and the exposed part of the lamp body is one time wider than that of the lamp body after the lamp body is stored by adopting a scheme of a back steel wire rope 4.
Optionally, the back steel wire rope 4 passing through the hole on the back side inside the lamp block is moved to the outside of the back side of the lamp block, at this time, the steel wire rope 4 can also be changed into a strip-shaped narrow steel sheet, and the change of the installation position can reduce the tensile force born by the steel wire rope 4/the strip-shaped narrow steel sheet, but the integral aesthetic property is not as good as that of the way of passing through the inside of the lamp block.
Optionally, the tail end of the back steel wire rope 4 is connected with the tail lamp block 202 through a spring to compensate for the slight change of the required length of the back steel wire rope 4 when the lamp block passes through the arc section of the chute, and meanwhile, the back steel wire rope provides buffering and protection for the bendable large-area planar lamp body 2 in an extended state, such as when the horizontal plane is subjected to unexpected downward pressure exceeding a designed value; the spring is suitably mounted in the tail light block 202 and can be mounted laterally according to the desired spring size, considering that the head light block 201 is narrow and the sensing, control, etc. electronics are located inside.
Optionally, in consideration of the process of accommodating the bendable large-area planar lamp body 2, the number of the lamp blocks entering the vertical section at the rear part of the sliding groove is more and more, the gravity action causes the problem of great force in outward pulling when the lamp body slides down or needs to be unfolded, a tension spring, elastic bodies such as elastic rubber bands and the like can be additionally arranged, one end of each elastic body is connected to the tail lamp block 202, the other end of each elastic body is connected to the back cover plate 11 or the bookshelf backboard 1, the length of each elastic body is coordinated, the relation between the elastic force and the installation position is realized, the principle that the tension force of the spring is in direct proportion to the length is utilized, the elastic force changes along with the increase and decrease of the weight of the lamp blocks in the vertical section, the purpose that the required force is basically unchanged in the push-pull process is achieved, of course, the lamp body can be further automatically accommodated and unfolded by adopting motor drive control, and no need of manual operation.
Optionally, a movable member is arranged on the rear lamp block of the bendable large-area planar lamp body 2, and is matched with a fixed-position protruding blocking member arranged near the vertical section of the chute to enter the arc-shaped turning section to form a limiting device, the movable member is usually pulled out, so that the bendable large-area planar lamp body 2 is limited when extending forwards to reach the farthest designed position, and at least one lamp block should be arranged in the vertical section of the rear section of the chute; when needing maintenance, dismantling with stop device propulsion reset, flexible large tracts of land flat lamp body 2 can take out forward smoothly.
Optionally, the lamp blocks entering the arc-shaped section of the chute and the vertical section of the rear part are automatically extinguished, while the lamp blocks located in the horizontal section are not affected, and the following two ways can be adopted: A. the lamp blocks are electrically connected in parallel, each lamp block is provided with a switch, and the switch is automatically realized in the process that the lamp blocks slide back and forth through a fixed position shifting device arranged near the arc-shaped turning section of the sliding chute entering the horizontal section; B. the power leads in the lamp piece through the sliding contact point from the 8 horizontal segments of spout support, or leads in the power through the anterior first luminescent lamp piece 203 in 2 horizontal planes of flexible large tracts of land planar lamp body, and the adjacent two lamp piece backs can part when recycling the lamp piece through spout arc section, and at straight section then zonulae occludens' principle, sets up the mode of contact and establish ties each lamp piece electrical property at the adjacent face of lamp piece.
Optionally, the horizontal light emitting surface of the bendable large-area planar lamp body 2 is 50cm to 80cm away from the installation height of the desktop.
Optionally, the radian of the arc-shaped section of the chute support 8 and the inner size of the chute port are determined according to the width and thickness of each lamp block, the chute support is made of preferably steel, a vertical flat cavity is arranged on the inner wall of the bookshelf back plate 1 at the mounting position in the bookshelf, and the left chute support 8 and the right chute support 8 are respectively vertically arranged at two ends of the cavity.
Optionally, the LED light-emitting beads 10 in the lamp block are arranged at equal intervals, and the interval is not greater than the thickness of the lamp block; the method of adding a large-angle diffusion lens on the lamp beads can be used for increasing the distance between the LED light-emitting lamp beads 10 and reducing the number of the lamp beads, and the distance is determined according to the diffusion angle of the diffusion lens.
Optionally, the soft film and the soft film groove 9 are eliminated, and the diffusion light-transmitting covers such as acrylic and PC are respectively installed according to each independent lamp block, so that the light transmittance is improved, the efficiency is increased, but the integrity and the attractiveness are not as good as those of the soft film.
The working principle and the working process explanation of the storage structure of the embodiment are as follows:
the bendable large-area planar lamp body 2 of the embodiment adopts a plurality of independent narrow and long strip-shaped lamp blocks to be spliced, and the front faces of all the lamp blocks are hinged through the lower roller shaft 601, so that gaps and displacement are not generated at the front face connecting positions among the lamp blocks, and only the lamp blocks are allowed to keep a straight state and axially rotate towards the front faces; when the light blocks connected on the front side are strung into the sliding groove and at least one light block is ensured in the vertical section at the rear part of the sliding groove, the tensioned back steel wire rope 4 is respectively connected to the head light block 201 and the tail light block 202, all the middle light blocks 203 and the back steel wire rope 4 are not fixed, and the free light block string forms a whole horizontal rigid bendable large-area planar lamp body 2; because the turning section of the chute bracket 8 is rigid and the radian is fixed, the number of the lamp blocks in the turning section and the length of the steel wire rope 4 at the back of the lamp blocks are basically unchanged, the total number of the lamp blocks of the other vertical and horizontal sections is also unchanged, the lamp blocks are connected in a seamless way, and the total length of the steel wire rope 4 at the back of the vertical and horizontal sections is also unchanged, so that in the process of the front-back sliding of the bendable large-area planar lamp body 2, as long as at least one lamp block in the vertical and horizontal sections of the chute is ensured, the total length required by the steel wire rope 4 at the back is basically unchanged; when the lamp needs to be stored, the bendable large-area planar lamp body 2 is pushed backwards, turns through the arc-shaped section of the chute and enters the vertical section of the chute downwards to realize storage, and at least one lamp block is arranged in the horizontal section at the front part of the chute; when the lamp body 2 needs to be unfolded, the bendable large-area planar lamp body 2 is pulled out to any position, the farthest limit can reach the vertical plane at the front edge of the desktop, but at least one lamp block is arranged in the vertical section at the rear part of the sliding groove due to the limit of the limiting device when the lamp body reaches the limit position; from the above process, no matter in any normal state, the horizontal plane part of the bendable large-area planar lamp body 2 extending out of the chute support 8 can be supported by the rigid body structure of the lamp body to form a suspended straight state, and no additional supporting piece is needed to form a self-supporting structure, so that the horizontal section extending out of the chute support 8 can be made short.
Example 2
Fig. 10 to 11 show an embodiment of the present invention in which an integral large-area planar lamp body 13 is used in a furniture-type wood desk set in cooperation with a three-section slide rail 14, fig. 10 is a schematic view of a storage state of the lamp body, and fig. 11 is a schematic view of an expansion state of the lamp body;
compared with a liftable student desk set, the furniture type wood desk (comprising a standard set type and an integral customized type) is characterized in that a bookshelf is generally higher, the width of the bookshelf is about 30cm, the width of the bookshelf is half of the width of a desktop where the desk is located (the width of the bookshelf of the liftable student desk set is about 20cm mostly), no drawing board is arranged, the distance between a first layer of horizontal partition plate 12 of the bookshelf and the desktop is 50 cm-70 cm mostly, and the desktop is not adjustable;
by means of the characteristics, the lamp body is an LED side light-emitting ultrathin integral large-area planar lamp body 13, LED light-emitting lamp beads 10 are uniformly installed on the periphery inside the integral large-area planar lamp body 13 at intervals, light is LED out through an acrylic light guide plate, a light reflecting plate and a rear cover plate are arranged on the back surface of the acrylic light guide plate, an acrylic diffusion panel is arranged on the front surface of the acrylic light guide plate, the thickness of the integral large-area planar lamp body 13 is about 1.5cm, two front corners are arc-shaped anti-collision corners, the length and the width of the front corners are matched with the length and the width of the interior of a horizontal partition plate 12 on a first layer of a bookshelf, and a touch button 5 is arranged on the front edge of the integral large-area planar lamp body;
the front section of the three-section type slide rail 14 is fixedly connected with the side face of the integral large-area planar lamp body 13, the basic section of the slide rail is 30cm long, the width of the basic section of the slide rail is consistent with that of the first-layer horizontal partition plate 12 of the bookshelf and that of the integral large-area planar lamp body 13, the basic section of the slide rail is tightly attached to the lower plane of the first-layer horizontal partition plate 12 of the bookshelf and is installed on the vertical partition plates at two sides, the integral large-area planar lamp body 13 can be pulled out to any position during use, when the integral large-area planar lamp body is pulled out completely, the front edge of the integral large-area planar lamp body can reach the vertical surface of the front edge of a desktop furthest, at the moment, the rear edge of the integral large-area planar lamp body 13 is just at the front edge of the first-layer horizontal partition plate 12 of the bookshelf, the integral large-area planar lamp body 13 is pushed into the lower side of the first-layer horizontal partition plate 12 to be stored when the integral large-area planar lamp body is not used, and at the moment, the integral large-area lamp body 13 does not expose out of the bookshelf.
Optionally, the whole large-area planar lamp body 13 may also be in a direct light emitting mode, and only the thickness is thicker, and at this time, the light emitting surface of the lamp body may be changed from an acrylic diffusion panel to a UV soft film.
Optionally, the front section of the three-section sliding rail 14 is fixedly connected with the back of the integral large-area planar lamp body 13, and the basic section is connected with the lower plane of the first layer of horizontal partition plate 12 of the bookshelf.
Optionally, the integral large-area planar lamp body 13 may be further installed in a horizontal cavity reserved in the top surface or the middle of the bookshelf with a suitable height in cooperation with the three-section slide rail 14.
Remarks explanation:
in the utility model, the front surface of the lamp body refers to a luminous surface, and the opposite surface of the luminous surface is a back surface;
the size and the shape of the lighting system are variable, and the limited size and the limited horizontal area numerical value refer to the numerical value after the lamp body is unfolded to the maximum;
in a desktop scene, the human eyes, the eyes and the sight are all for a user sitting at a working and learning position and in a normal posture; the 'certain comfortable distance above the eyes' refers to a convenient and comfortable height distance determined according to different heights and different using habits of users, and if a numerical value is determined uniformly for the heights of the 'human eyes' and the 'eyes', the numerical value can be defined as 40cm away from the table top; similarly, the description of "front" refers to the direction of the user's seat, "rear" refers to the direction opposite to the user's seat, the distance between the front and rear of the table is defined as the width of the table or the lamp body according to the habit, and "left" and "right" also refer to the distance between the left and right of the table as the length of the table or the lamp body according to the habit relative to the user;
the terms "uniform", "no shading", "low glare", "no shading", "large area", "vertical", "full coverage", "high quality", etc. are a relative, generalized, descriptive description of the particular object feature being compared, and not absolute terms;
the support/connecting piece refers to a device and a device assembly with a support function or a connection function or both the support function and the connection function, and the form of the device and the device assembly is diversified and can be embodied in a specific implementation environment;
the planar lamp body is a description of the shape of the lamp body compared with a point-shaped light source, and can be a plane shape, an arc-shaped plane shape, a special shape formed by combining two or more plane shapes, a deformable plane shape and the like;
the bendable large-area planar lamp body and the self-supporting structure are simplified terms for vividly and conveniently describing a specific product and a structural principle, and can be easily understood by combining the structural characteristics of the corresponding product composition, the description of the working principle and the attached drawings in the specification;
when the specification is not specially defined, the national standard of the utility model means the existing national standard GB/T9473-2017 performance requirement of reading and writing operation desk lamp, and the luminous surface brightness is not more than 2000cd/m2"is the brightness value defined by the requirement for controlling glare, and the requirement simultaneously gives a corresponding measuring method;
when not specified, in order to be consistent with the national standard, the illuminance uniformity calculation method provided by the utility model comprises the following steps: dividing the maximum horizontal illuminance value measured by each measuring point in the measured range by the minimum horizontal illuminance value, wherein the larger the numerical value is, the worse the uniformity is, and the closer to 1 the uniformity is;
unless otherwise specifically stated or limited, the terms "control," "regulation," "restriction," "installation," "connection," "fixation," and the like are to be construed broadly, and for example, "control," "regulation," and "restriction" may be dynamic control, either automatic or manual, or static control with preset parameters; the connection can be fixed connection, detachable connection or connection in series, direct connection, indirect connection through an intermediate medium, or communication between the two elements; directional or relative positional terms are used only to facilitate describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the utility model; the specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations;
the above-described embodiments are intended to illustrate a part of the embodiments of the present invention, not all of them, and not to limit the embodiments of the present invention; the drawings are for illustrative purposes only and are not intended to be actual drawings, and some components may be omitted, simplified, enlarged or reduced in size, and do not represent the size of an actual product; based on the embodiments of the present invention, those skilled in the art should, without any creative effort, make any modifications, equivalent substitutions, improvements, etc. that fall within the protection scope of the present invention.
Claims (10)
1. A desktop high quality lighting system, characterized by: the lighting system comprises a large-area planar lamp body, a supporting/connecting piece and a control driving power circuit;
the supporting/connecting piece is arranged at the rear part of the desktop or on the bookshelf;
the large-area surface-shaped lamp body is connected to the supporting/connecting piece, the light-emitting surface of the large-area surface-shaped lamp body faces downwards and is arranged above the working and learning area of the desktop, and the storable lamp body can be unfolded to the maximum position to reach the position above the working and learning area of the desktop;
the luminous surface of the large-area planar lamp body is higher than eyes of a user by a certain comfortable distance and is maximally within 100cm from the desktop;
the large-area planar lamp body emits light through a plurality of LED lamp beads inside the large-area planar lamp body, and the light is diffused through a diffusion layer on the front surface of the lamp body to form a uniform light emitting surface; or the large-area planar lamp body emits light through the OLED flexible panel to form a light emitting surface, so that a diffusion layer is not needed; the LED light-emitting lamp beads or the OLED flexible panel are connected with a control driving power circuit;
the horizontal area of the large-area planar lamp body is not less than 1800cm2。
2. A desktop high quality lighting system according to claim 1 wherein: the large-area planar lamp body is formed by splicing a plurality of independent narrow and long strip-shaped lamp blocks into a bendable large-area planar lamp body, and a whole light-emitting surface is formed at the part of the lamp body on the horizontal plane and emits light downwards towards the desktop; the support/connecting piece is a chute support, the vertical sections of the left and right chute supports are respectively vertically arranged at two ends of the rear part of the desktop, the upper part of the vertical section of the chute support is bent by an arc section to forwards extend a small part of necessary horizontal section, the notches of the left and right chute supports are opposite, the left and right sides of the bendable large-area planar lamp body respectively extend into the chutes of the left and right chute supports and form a bending surface along with the shape of the chute;
the left side and the right side of the bendable large-area planar lamp body are tightly connected with the lamp blocks by the connectors with enough tensile strength and flexibility through the front faces, or the front-face joints among the lamp blocks are hinged;
the back of the bendable large-area planar lamp body is connected to the head lamp block and the tail lamp block through a connecting body with enough tensile strength, flexibility and wear resistance, and the connecting body on the back passes through the middle lamp block but is not fixed with all the middle lamp blocks; or the horizontal section of the sliding groove support adopts a multi-section sliding rail, and the two ends of the head lamp block are respectively connected with the front ends of the left and right multi-section sliding rails.
3. A desktop high quality lighting system according to claim 2 wherein: when the bendable large-area planar lamp body is provided with the connector on the back, the end of the connector on the back is connected with the head and/or tail lamp block through the spring.
4. A desktop high quality lighting system according to claim 2 wherein: the lamp block at the rear part of the bendable large-area planar lamp body is provided with a component capable of being stirred, and the component is matched with a blocking component arranged at a preset position to form a limiting device.
5. A desktop high quality lighting system according to claim 2 wherein: rollers are arranged at two ends of each lamp block.
6. A desktop high quality lighting system according to claim 2 wherein: a tension spring or an elastic rubber band is additionally arranged on a lamp block at the rear part of the bendable large-area planar lamp body, and the other end of the tension spring or the elastic rubber band is fixed on a sliding groove support, or a bookshelf back plate, or a back cover plate.
7. A desktop high quality lighting system according to claim 1 wherein: the large-area planar lamp body is an integral large-area planar lamp body, and the front width and the rear width of the large-area planar lamp body are not less than 16cm and not more than 40 cm; support/connecting piece be no less than two and control separately setting, its mounting means is: A. the support/connecting piece is a sectional type slide rail, the integral large-area planar lamp body is connected with the sectional type slide rail, and the sectional type slide rail is horizontally arranged at the top of the bookshelf, or a horizontal cavity reserved in the middle or a lower plane of a first layer horizontal supporting plate on the lower part; B. the support/connecting piece is a hinged piece, and the integral large-area planar lamp body is hinged with the front edge of the bookshelf through the hinged piece.
8. A desktop high quality lighting system according to any one of claims 1 to 7 wherein: the height of the light emitting surface of the lamp body from the table top is 50cm to 80 cm.
9. A desktop high quality lighting system according to any one of claims 1 to 7 wherein: the left and right length of the lamp body is not less than 60cm, the long side is in the same direction with the long side of the table top, and the horizontal area of the lamp body is not less than 2000cm2。
10. A desktop high quality lighting system according to any one of claims 1 to 7 wherein: when the lamp body is unfolded to the maximum, the size of the horizontal plane is matched with the size of the horizontal plane blank area of the desktop except the occupied area of the bookshelf, and the horizontal area of the lamp body is not less than 80% of the area of the horizontal plane blank area of the desktop except the occupied area of the bookshelf.
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| CN116267574A (en) * | 2023-02-15 | 2023-06-23 | 中南林业科技大学 | Urban open space microclimate regulating ecological wall |
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