CN203023895U - LED (light-emitting diode) lighting device capable of adjusting color temperatures - Google Patents
LED (light-emitting diode) lighting device capable of adjusting color temperatures Download PDFInfo
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- CN203023895U CN203023895U CN2012207425812U CN201220742581U CN203023895U CN 203023895 U CN203023895 U CN 203023895U CN 2012207425812 U CN2012207425812 U CN 2012207425812U CN 201220742581 U CN201220742581 U CN 201220742581U CN 203023895 U CN203023895 U CN 203023895U
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Abstract
The utility model provides an LED (light-emitting diode) lighting device capable of adjusting color temperatures. The device comprises a base (1), an LED lamp panel (2), one or more LED light sources (3), a non-lighttight shade (4), a non-lighttight shade support (5) and a knob (6), wherein the LED lamp panel is fixedly arranged on the base (1); the LED light sources are arranged on the LED lamp panel (2) so as to form a light-emitting region (202); the non-lighttight shade (4) is arranged above the LED lamp panel (2) in a non-contact manner and is used for adjusting the color temperature of the light emitted by the LED light sources (3); the non-lighttight shade support (5) is fixedly arranged on the base (1); the non-lighttight shade (4) is movably arranged on the non-lighttight shade support (5); a gear (7) is arranged at one end of the knob (6) and is arranged between the non-lighttight shade (4) and the non-lighttight shade support (5); and an engaging tooth engaged with the gear (7) is arranged in the position in which the non-lighttight shade (4) is contacted with the gear (7), so that the non-lighttight shade (4) can be driven to move linearly relative to the LED lamp panel (2) through the rotation of the knob (6).
Description
Technical field
The utility model relates to a kind of LED lighting device.Especially, relate to a kind of LED lighting device that can regulate colour temperature.
Background technology
Along with living standard constantly improves, people no longer are satisfied with single lighting system, and the abundant and innervation of lighting colour is just progressively pursued by people.The light source of different-colour can be built different luminous environment effect and photochromic, thereby gives people with different mental impressions.By a large amount of comparative study, low colour temperature relatively is fit to the one side of perception to a kind of warmth of people, comfortable, classical sensation, such as chat etc.; Middle colour temperature to the people be a kind of salubrious, swash sensation clear, fashion, be fit to read, have a dinner etc.; High color temperature is a kind of pure, pure and fresh, lucid and lively serious sensation to the people's, and relatively suitable rational one side is such as working, manage household affairs etc.
The colour temperature of conventional incandescent or electricity-saving lamp is all fixed, and the colour temperature of incandescent lamp all is fixed on the 2700K left and right usually, and the electricity-saving lamp colour temperature is relatively enriched, such as the fixed values such as 3000K, 4000K, 6400K are arranged.But the colour temperature of these conventional light source is all fixed value, just can't regulate change once making moulding, generally can only carry out light modulation by brightness regulation, and can't accomplish the variation of flexible modulation colour temperature and color as required.
Current, LED light source is because the advantage of its energy-conserving and environment-protective is used widely.In addition, be can Based Intelligent Control for the sharpest edges of LED light source.For example, compare with conventional light source, LED light source can either brightness adjusting, can also realize the adjusting of colour temperature and color.
But there is number of drawbacks in the LED light source equipment of prior art, and modal is that light colour temperature and color can not be realized automatic adjusting, needs manually to change, and wastes time and energy.Although perhaps basic the realization regulated automatically, adjustment structure is very complicated, complex manufacturing, and material and processing cost are high, easily cause the light source fault rate high, and quality is unstable.
Therefore, need to improve the colour temperature of existing LED light source and the regulation mechanism of color, a kind of LED light source that can automatically regulate colour temperature and color is provided, has simple adjustment structure, be easy to make and use, and being convenient to the user and regulating easily according to the actual requirements colour temperature and the color that light source emits beam.
The utility model content
The purpose of this utility model is to provide a kind of LED lighting device of adjustable color temperature, makes the user can regulate easily the colour temperature that the LED lighting device emits beam, and obtains the illuminating effect that needs.
According to an aspect of the present utility model, a kind of LED lighting device of adjustable color temperature is provided, comprising: pedestal; The LED lamp plate is fixedly installed on pedestal; One or more LED light sources, it is arranged on described LED lamp plate to form light-emitting zone; Diffuser is arranged on the top of described LED lamp plate non-contactly, is used for regulating the colour temperature of the light that described LED light source sends; The diffuser support, it is fixedly installed on described pedestal, and described diffuser is movably arranged on described diffuser support; Knob, the one end is provided with gear, this gear is arranged between described diffuser and described diffuser support, wherein, described diffuser is provided with the engaging tooth with described gear engagement in the position with described Gear Contact, make the rotation of described knob can drive described diffuser with respect to described LED lamp plate traveling priority.
Preferably, described diffuser support comprises the draw-in groove that described diffuser is installed for activity.
Preferably, be provided with the lighttight wall that is in the light around described one or more LED light sources on described LED lamp plate, be used for limiting described light-emitting zone.
Preferably, be provided with two or more color temperature regions on described diffuser, be used for the color temperature value of realization more than at least two kinds and regulate.
Preferably, be provided with lighttight shading limit along the girth of each described color temperature regions on diffuser.
Preferably, be provided for obtaining the fluorescent material of different-colour value in adjacent described color temperature regions.
Preferably, each described color temperature regions forms and can cover the light-emitting zone corresponding with it.
Preferably, the shape approximate match of the shape of each described color temperature regions and described light-emitting zone or identical.
Preferably, described a plurality of color temperature regions forms along vertical continuous distributed of diffuser and has identical shaped rectangular area.
Preferably, the height of the described wall that is in the light forms the shading limit that makes the described wall that is in the light fit to described diffuser.
Preferably, described LED light source is ruddiness, blue light, green glow, purple light or white LED light source.
As mentioned above, LED lighting device of the present utility model is by fixing LED light source, then by with respect to the position of LED light source traveling priority diffuser, make same light source see through the diffuser in different-colour zone and realize the variation of colour temperature, thereby to realize regulating arbitrarily the function of colour temperature.
By implementing the utility model, can so that user in the situation that need not dismantles the just conversion between practical function illumination easily and sight illumination of light fixture, satisfy psychological in people's productive life and physiological lighting demand.
In addition, LED illuminator structure of the present utility model is simple and reliable, easy to use, has advantages of that production cost is low, reliability is high.
Description of drawings
Fig. 1 has shown a kind of colour temperature adjustment structure of LED lighting device in the prior art;
Fig. 2 has shown the another kind of colour temperature adjustment structure of LED lighting device in the prior art;
Fig. 3 has shown the colour temperature adjustment structure of the utility model LED lighting device;
Fig. 4 has shown the three-dimensional cutaway view of the colour temperature adjustment structure of the utility model LED lighting device;
Fig. 5 has shown the structural representation of the LED lamp plate of the utility model LED lighting device; And
Fig. 6 has shown the structural representation of the diffuser of the utility model LED lighting device.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage more cheer and bright, below in conjunction with the specific embodiment and with reference to accompanying drawing, the utility model is further described.Should be appreciated that, these descriptions are exemplary, and do not really want to limit scope of the present utility model.
Structural representation according to the utility model embodiment shown in the drawings.These figure draw in proportion, wherein for purpose clearly, have amplified some details, and may omit some details.Various zones shown in figure, component shape and the relative size between them, position relationship are only exemplary, may be due to manufacturing tolerance or technical limitations in reality and deviation to some extent, and those skilled in the art required according to reality can design in addition have difformity, the zone/parts of size, relative position.
Fig. 1 has shown a kind of colour temperature adjustment structure of LED lighting device in the prior art.
In the colour temperature adjustment structure of prior art shown in Figure 1, mainly adopt the scheme of circuit control and regulation colour temperature.As shown in Figure 1, the LED lighting device comprises LED light source 500, drive circuit 400, diffuser 600 and heat sink assembly 100,200 and 300.Wherein, LED light source 500 is comprised of the light source of two kinds of different-colours, is connected respectively to different drive circuit 400.Drive circuit 400 is electrically connected to LED light source 500, is used for driving LED light source 500 luminous.Diffuser 600 is arranged on the luminous route of LED light source 500, is used for light is evenly dispersed.Heat sink assembly comprises fin 100, heat pipe 200 and absorber plate 300, be used for to absorb the heat of the generation of LED light source 500, and by fin 100, heat pipe 200 with dissipation of heat in air.
Be provided with two cover drive circuits 400 in this structure, be used for warming up light source power supply to LED cold light source and LED respectively, control the drive current size of every group of light source by circuit, thereby control the intensity of every group of light source igniting, produce the combined light source of different-colour, realize the purpose that colour temperature is regulated.
This structure is actually and adopts two to overlap independently light source and circuit drives system, and the consumption of LED light source is the twice of non-light modulation scheme.In production practices, can a plurality of LED light sources of different-colour are highdensity staggered at a certain distance, not acting or the not acting fully of LED light source of half arranged at work, cause the wasting of resources.In addition, this scheme complex circuit designs, complex production process, material and processing cost are high.And, in case dead lamp situation occurs, the phenomenon that whole group of light source do not work can occur, thereby cause the inhomogeneous problem of colour temperature.
Fig. 2 has shown the another kind of colour temperature adjustment structure of LED lighting device in the prior art.
In colour temperature adjustment structure shown in Figure 2, mainly comprise LED light source 10 and light transmission piece 20.Be coated with the colour temperature transition material on this light transmission piece 20, it is arranged on the light emission direction of LED light source 10, and the light that makes LED light source 10 send passes light transmission piece 20 and produces colour temperature and changes, thereby reaches the purpose of light regulating colour temperature.
In this structure, a plurality of diffusers with different-colour fluorescent material are set in lighting device usually, realize the adjusting of colour temperature by the different diffuser of artificial replacing.Although this scheme cost is lower, need in actual applications to prepare the fluorescent material lampshade of various different-colours, cumbersome for the application keeping of lampshade itself.And in the actual illumination place, because the problem of safety and the instrument of replacing does not allow the consumer to carry out scene replacing.Because consider the convertibility of lampshade, the fitting structure design will inevitably be considered detachability, thereby has influence on the barrier propterty of light fixture simultaneously.
Fig. 3 has shown the colour temperature adjustment structure of the utility model LED lighting device.Fig. 4 has shown the three-dimensional cutaway view of the colour temperature adjustment structure of the utility model LED lighting device.
As shown in Fig. 3 or 4, LED lighting device of the present utility model comprises the parts such as pedestal 1, LED lamp plate 2, one or more LED light source 3, diffuser 4, diffuser support 5, knob 6.
An end of knob 6 is provided with gear 7, this gear 7 is arranged between described diffuser 4 and described diffuser support 5, wherein, described diffuser 4 is provided with the engaging tooth with described gear 7 engagements in the position that contacts with described gear 7, make the rotation of described knob 6 can drive described diffuser 4 with respect to described LED lamp plate 2 traveling priorities.The other end of described knob 6 is provided with rotary handle, is convenient to 6 rotations of user's operation knob.Operation for the convenience of the user, this rotary handle is arranged on the hull outside of LED lighting device usually.
Fig. 5 has shown the structural representation of the LED lamp plate of the utility model LED lighting device.
As shown in Figure 4 and Figure 5, LED lamp plate 2 is fixedly installed on the front of pedestal 1, is preferably formed to be rectangle.
One or more LED light sources 3 are arranged on LED lamp plate 2, and it is connected with power supply by LED pad 9, and form the light-emitting zone 202 of LED lighting device.In the utility model, LED light source can adopt the LED light source of the multiple colors such as ruddiness, blue light, green glow, purple light or white light, can flexible choice in actual production.
In embodiment of the present utility model, preferably around described one or more LED light sources 3, the lighttight wall 201 that is in the light is set at LED lamp plate 2, is used for limiting light-emitting zone 202.One or more LED light sources 3 are arranged in the light-emitting zone 202 that is limited by the wall 201 that is in the light, thereby the light that blocks in this light-emitting zone shines other color temperature regions, causes light leak or mixed light.
The wall 201 that is in the light adopts light-proof material to consist of, the function that having shuts out the light passes through.Preferably, the height of the wall 201 that is in the light can be formed and make its shading limit that fits to hereinafter described diffuser 403, avoid causing light leak or astigmatism, thereby obtain the best effect that is in the light.
Fig. 6 has shown the structural representation of the diffuser of the utility model LED lighting device.
Referring to Fig. 3 and Fig. 6, diffuser 4 is arranged on the top of LED lamp plate 2 non-contactly, namely is arranged on the direction of advance of LED light source 3 emission of lights, is used for regulating the colour temperature that LED light source 3 emits beam.Diffuser 4 forms rectangle, can be planar structure or globoidal structure, and its profile can be set to match with the profile of LED lamp plate 2.
It should be noted, the LED light source in the utility model adopts contactless encapsulation.Specifically, diffuser 4 be set to and LED lamp plate 2 between spaced apart, make LED chip separate with fluorescent material, the heat that LED chip produces is less on the impact of fluorescent material, the stability of fluorescent material is higher, longer service life.
With reference to figure 3, diffuser 4 comprises transmitting substrate 401 and fluorescent material 402.Transmitting substrate 401 can be the materials such as glass, plastics, resin, rubber or silica gel.Fluorescent material 402 applies or evaporation forms film on the surface of transmitting substrate 401, and fluorescent material 402 can by multiple fluorescent substance according to being combined to form of different proportion, be regulated desired value thereby reach different colour temperatures.
As shown in Figure 6, be provided with two or more color temperature regions 404 on diffuser 4, be used for the colour temperature of realization more than at least two kinds and regulate.Specifically, a plurality of shadings limit 403 that arranges on diffuser 4 is divided into diffuser 4 along the vertical continuously arranged a plurality of color temperature regions 404 as Fig. 6, be provided with the fluorescent material of identical or different color temperature value in each described color temperature regions 404, when with respect to LED lamp plate 2 along in figure vertically move diffuser 4 time, can be so that different color temperature regions 404 cover on the top of light-emitting zone 202, thus colour temperature by the light of this color temperature regions regulated.The fluorescent material of different-colour value preferably, is set in every two adjacent color temperature regions 404.
In embodiment of the present utility model, described color temperature regions 404 forms and can cover corresponding light-emitting zone 202.Preferably, the shape of color temperature regions 404 forms with the shape approximate match of light-emitting zone 202 or coincide, with guarantee light that light-emitting zone 202 sends can be all color temperature regions 404 by correspondence.Preferably, a plurality of color temperature regions 404 on diffuser 4 form continuous distributed and have identical shaped rectangular area, and accordingly, light-emitting zone 202 also forms with each color temperature regions 404 has identical shaped rectangular area.In addition, according to the needs of concrete application, color temperature regions 404 and light-emitting zone 202 can be set to other various shapes.
For example, in the embodiment shown in fig. 6, a plurality of rectangle color temperature regions 404 are shown, are provided with in each color temperature regions 404 for the fluorescent material that obtains different-colour, multiple color temperatures values such as 3000k, 4500k, 6000k.On the other hand, the light-emitting zone 202 on LED lamp plate 2 also forms the rectangular area, thus with diffuser 4 on the shape approximate match of each rectangle color temperature regions 404.
In said structure, shading limit 403 adopts light-proof materials to consist of, and the function that having shuts out the light passes through is to such an extent as to the light scattering that is used for blocking in the color temperature regions of place causes mixed light between the different-colour zone to the color temperature regions on side.
As mentioned above, LED lighting device of the present utility model is by fixing LED light source, then by regulating the position of diffuser, make same light source see through the diffuser in different-colour zone and realize the variation of colour temperature, thus the function to realize that colour temperature can be regulated arbitrarily.
By implementing the utility model, can so that LED light source carries out conversion between the illumination of functional lighting and sight easily, satisfy psychology and physiological lighting demand in people's productive life.Compare with the light modulation mechanism of prior art, LED lighting device of the present utility model has following advantage:
(1) use single light source, quantity is few, and the cost of raw material is low; Circuit design is simple, and welding cost is low.
(2) in prior art, the light decay of LED light source is to cause because of the decay of fluorescent material to a great extent.The utility model packaged light source adopts contactless encapsulation, and LED chip separates with fluorescent material, and the heat that LED chip produces is less on the impact of fluorescent material, and the stability of fluorescent material is higher, longer service life.
(3) colour temperature is easy to adjust, need not to dismantle lampshade and can carry out the adjusting of colour temperature, and is simple to operate; Be conducive to the protection of lamp interior element.
Should be understood that, the above-mentioned specific embodiment of the present utility model only is used for exemplary illustration or explains principle of the present utility model, and does not consist of restriction of the present utility model.Therefore, in the situation that do not depart from any modification that spirit and scope of the present utility model make, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.In addition, the utility model claims are intended to contain whole variations and the modification in the equivalents that falls into claims scope and border or this scope and border.
Claims (10)
1. the LED lighting device of an adjustable color temperature comprises:
Pedestal (1);
LED lamp plate (2) is fixedly installed on pedestal (1);
One or more LED light sources (3), it is upper to form light-emitting zone (202) that it is arranged on described LED lamp plate (2);
Diffuser (4) is arranged on the top of described LED lamp plate (2) non-contactly, is used for regulating the colour temperature of the light that described LED light source (3) sends;
Diffuser support (5), it is fixedly installed on described pedestal (1), and described diffuser (4) is movably arranged on described diffuser support (5);
Knob (6), one end are provided with gear (7), and this gear (7) is arranged between described diffuser (4) and described diffuser support (5),
Wherein, described diffuser (4) is provided with the engaging tooth with described gear (7) engagement in the position that contacts with described gear (7), make the rotation of described knob (6) can drive described diffuser (4) with respect to described LED lamp plate (2) traveling priority.
2. LED lighting device according to claim 1, described diffuser support (5) comprise the draw-in groove (8,8 ') that described diffuser (4) is installed for activity.
3. LED lighting device according to claim 1 and 2, is provided with the lighttight wall that is in the light (201) around described one or more LED light sources (3) on described LED lamp plate (2), is used for limiting described light-emitting zone (202).
4. LED lighting device according to claim 3, be provided with two or more color temperature regions (404) on described diffuser (4), is used for the color temperature value of realization more than at least two kinds and regulates.
5. LED lighting device according to claim 4, be provided with lighttight shading limit (403) at the upper girth along each described color temperature regions (404) of described diffuser (4).
6. LED lighting device according to claim 4 is provided for obtaining the fluorescent material of different-colour value in adjacent described color temperature regions (404).
7. LED lighting device according to claim 4, each described color temperature regions (404) forms and can cover the light-emitting zone corresponding with it (202).
8. LED lighting device according to claim 4, the shape approximate match of the shape of each described color temperature regions (404) and described light-emitting zone (202) or coincide.
9. LED lighting device according to claim 5, the height of the described wall that is in the light (201) forms the shading limit (403) that makes the described wall that is in the light (201) fit to described diffuser (4).
10. LED lighting device according to claim 1 and 2, described LED light source (3) is ruddiness, blue light, green glow, purple light or white LED light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207425812U CN203023895U (en) | 2012-12-30 | 2012-12-30 | LED (light-emitting diode) lighting device capable of adjusting color temperatures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207425812U CN203023895U (en) | 2012-12-30 | 2012-12-30 | LED (light-emitting diode) lighting device capable of adjusting color temperatures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203023895U true CN203023895U (en) | 2013-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207425812U Expired - Fee Related CN203023895U (en) | 2012-12-30 | 2012-12-30 | LED (light-emitting diode) lighting device capable of adjusting color temperatures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203023895U (en) |
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2012
- 2012-12-30 CN CN2012207425812U patent/CN203023895U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20171230 |