CN207865058U

CN207865058U - Array-type LED lighting device

Info

Publication number: CN207865058U
Application number: CN201820258764.4U
Authority: CN
Inventors: 李鹤荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-02-14
Filing date: 2018-02-14
Publication date: 2018-09-14
Anticipated expiration: 2028-02-14

Abstract

A kind of array-type LED lighting device, it includes heat sink and several LED lamp beads on heat sink, and in being in that array-like is arranged on heat sink, LED lamp bead is fixed on by LED support on heat sink several LED lamp beads；The LED lamp bead includes LED light source and positioned at the guide-lighting hollow lens being located on LED light source, the leaded light hollow lens include lens body and are located at the plane of incidence and exit facet of lens body inner side and outer side, the lens body is revolving body, the plane of incidence is the paraboloid of revolution that Open Side Down, exit facet is revolution spherical, there is identical rotating shaft, LED light source to be located in guide-lighting hollow lens in the focus of the plane of incidence for revolving body, paraboloid of revolution and the spherical face of revolution.The structured illumination effect of the utility model array, assembly are simple；There is the light beam projected simultaneously through guide-lighting hollow lens the light emitting angle of bigger, the aperture of angle bigger to improve the uniformity and consistency of lamps and lanterns irradiation, significantly improve the visual illumination effect of LED lamp.

Description

Array-type LED lighting device

Technical field

The utility model is related to lighting area, especially a kind of array-type LED lighting device.

Background technology

In recent years, as pollution and energy problem become increasingly conspicuous, big advise that the LED light being more energy-saving and environmentally friendly obtains pushes away Wide application；LED light generally comprises the lampshade above light emitting diode and light emitting diode, goes out at present directly from light emitting diode The light penetrated tends not to meet lighting demand well, generally come to it by the way of installing lens additional on a light emitting diode Output light type is adjusted.

In practical applications, in order to improve illumination visual effect, installation is also needed to outside LED light source has light regulating effect Lens, currently used lens are generally astigmatism type lens, and typical structure is Chinese patent ZL201710327387.5 public A kind of plug-in unit LED lamp bead lens and lens group opened, it describe " single lens (2) is hollow half ellipse entity, it is external by Smoothing spline curved surface constitutes lens exit facet (7), and inside constitutes lens entrance face (9) by smooth hemispherical curved surface；Single lens (2) internal is lamp bead accommodating cavity (8) " technical solution, shown in Fig. 5 and Fig. 6 that index path such as its disclosure is recorded, its general Come from the spot beam of light emitting diode and be adjusted to divergent shape light beam through lens, however this is adjusted by this lens LED lamp is smaller because light beam deflects, and brightness is concentrated, and visual effect is poor, and especially illumination excessively concentrates below lamps and lanterns, illumination effect Fruit is poor；And the lens group it is seperated with LED lamp bead assembly, replacing and safeguarding need to integrally remove when light source, positioning assembly difficulty also compared with Greatly；Therefore, no matter its assembling structure or its lens are both needed to be improved design existing LED light device.

Utility model content

The purpose of this utility model is to provide a kind of array-type LED lighting device, it have it is compact-sized, assembly simply and The advantages of illumination good visual effect.

The utility model is achieved like this, a kind of array-type LED lighting device, it includes heat sink and is mounted on Several LED lamp beads on heat sink, which is characterized in that several LED lamp beads on heat sink be in array-like arrange, LED light Pearl is fixed on by LED support on heat sink；The LED lamp bead includes LED light source and positioned at being located on LED light source Guide-lighting hollow lens, the leaded light hollow lens, which have, is located at the plane of incidence and exit facet of inner side and outer side, described to lead Light hollow lens are revolving body, and the plane of incidence is the paraboloid of revolution that Open Side Down, and exit facet is revolution evagination arcwall face, revolution Body, paraboloid of revolution and revolution evagination arcwall face rotating shaft having the same, the LED light source are located in guide-lighting hollow lens It penetrates in the focus in face.

Optionally, the outside center of the guide-lighting hollow lens is additionally provided with reflecting surface, which is returning for opening upwards Turn taper surface, revolution taper surface and paraboloid of revolution rotating shaft having the same.Connection between at the top of exit facet and reflecting surface Face is scattering surface.

Optionally, the LED light source includes light emitting diode and drive circuit board, is additionally provided with above light emitting diode The protective cover being engaged by clamping with drive circuit board.

Optionally, the LED light source is fixed together non-dismountable with guide-lighting hollow lens.

Optionally, the lower surface of drive circuit board is also associated with fixed patch, and fixed patch is fitted on LED support, Gu Determine to be connected with sealing rubber ring between patch and the outer rim of guide-lighting hollow lens.

Optionally, the lower part of protective cover is equipped with screens ring, has the locating slot coordinated with the screens ring on drive circuit board.

Optionally, the guide-lighting hollow lens are made of silica gel, glass or transparent PC material.

The beneficial effects of the utility model are：The utility model designs LED light device structure, array Structured illumination effect, assembly is simple, good heat dissipation effect；The guide-lighting hollow lens for also improving lighting source simultaneously, can utilize The contour structures of guide-lighting hollow lens play good protective action to light source functor, and the light beam of light source is through hollow lens Deflection, the light beam that LED light source projects have the light emitting angle of bigger, and lamps and lanterns is made to form the illumination aperture of bigger；By to hollow The Optimal Structure Designing of lens, it can carry out refractive deflection, reflection and scattering function to the light beam of light source, light is concentrated To the deflection angle of bigger, the aperture of angle bigger improves the uniformity and consistency of lamps and lanterns irradiation, significantly improves LED lamp Visual illumination effect.

Description of the drawings

Fig. 1 is the structural schematic diagram that the utility model leads one embodiment.

Fig. 2 is the attachment structure schematic diagram of the utility model LED lamp bead and heat sink.

Fig. 3 is the structural perspective of the utility model leaded light hollow lens one embodiment.

Fig. 4 is the light path schematic diagram of embodiment illustrated in fig. 3.

Fig. 5 is the structural perspective of the utility model LED lamp bead.

Fig. 6 is the cross-sectional view of the structure at A-A in Fig. 5.

Fig. 7 is the Standard figure of embodiment illustrated in fig. 5.

Fig. 8 is the Structure explosion diagram of embodiment illustrated in fig. 5.

Fig. 9 is the attachment structure schematic diagram of the utility model drive circuit board and fixed patch.

Figure 10 is that the utility model LED lamp bead projects distribution schematic diagram through hollow lens light beam.

Figure 11 is embodiment illustrated in fig. 10 LED lamp bead illumination patterns schematic diagram.

Figure 12 is the cross-sectional view of the structure of the utility model LED lamp bead another embodiment

Specific implementation mode

It will be appreciated by those of skill in the art that although the following description is related in relation to many of embodiment of the disclosure Technical detail, but be only for the example of principle for illustrating the disclosure and do not mean that any restrictions.The disclosure can be applicable in In different from the occasion except technical detail exemplified below, the principle without departing from the disclosure and spirit.

It, may pair can be in description in the present specification in addition, tedious in order to avoid making the description of this specification be limited to The portion of techniques details obtained in prior art data has carried out the processing such as omission, simplification, accommodation, this technology for this field It will be understood by for personnel, and this does not interfere with the open adequacy of this specification.

Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings.

As depicted in figs. 1 and 2, the utility model is realized in this way, the array-type LED lighting device includes heat sink 5 and several LED lamp beads on heat sink 5, it is structurally characterized in that, several LED lamp beads are in being in battle array on heat sink 5 Column-shaped is arranged, and LED lamp bead is fixed on by LED support 6 on heat sink 5；The LED lamp bead includes LED light source 2 and cover The guide-lighting hollow lens being located on LED light source 2, the leaded light hollow lens include lens body 1 (it is understood that in the leaded light The 1 interchangeable reference of hollow lens and lens body), there is the plane of incidence 101 for being located at 1 inner side and outer side of lens body and go out Face 102 is penetrated, the lens body 1 is revolving body, and the plane of incidence 101 is the paraboloid of revolution that Open Side Down, and exit facet 102 is revolution Evagination arcwall face (for example, revolution spherical), revolving body, paraboloid of revolution and revolution evagination arcwall face revolution having the same Axis, the LED light source 2 are located in guide-lighting hollow lens in the focus of the plane of incidence 101；In actual installation, the LED support 6 It is equipped with gap with the joint place of heat sink 5, so that radiating airflow quickly circulates, while heat sink 5, LED support 6 are all made of heat conduction The good material of property is made, when mounted, it is only necessary to LED lamp bead is fixed on LED support 6, then pass through LED branch according to array Frame is fixed on heat sink 5, and assembly is simple, good heat dissipation effect, at the same the utility model also to the hollow lens of light source into Design is gone, which is a kind of special-shaped hollow lens of tactical rule, on the one hand can utilize guide-lighting hollow lens Contour structures play good protective action to light source functor, and on the other hand, the light beam of light source is as shown in the parts Fig. 4, light beam It first passes around the plane of incidence 101 to enter in lens body 1, then be projected from exit facet 102, by the refraction of lens body 1, light Line from optically denser medium directive optically thinner medium when, refraction angle will be greater than incidence angle, may make come from light source emitting shape light beam hair Raw refractive deflection, the light beam sent out in this way from exit facet 102 have the light emitting angle of bigger relative to conventional light source outgoing beam, Form the illumination aperture of bigger；At the same time, according to optical principle, when the angle of incidence of light in lens body 1 is more than critical angle When, it will be totally reflected, some light is returned to by the plane of incidence 101 in the space between paraboloid of revolution, after reflecting It is re-introduced into lens body 1 through the plane of incidence 101 with together with the light that light source is sent out, until light is projected through exit facet 102, such as Shown in Figure 10.

In the specific implementation, in order to improve aperture illumination intensity at exit facet 102, the lens right over the plane of incidence 101 Main body 1 is additionally provided with reflecting surface 103, which is the revolution taper surface of opening upwards, turns round taper surface and paraboloid of revolution Rotating shaft having the same；According to the angle of different critical angle setting revolution taper surfaces so that the light of directive reflecting surface 103 Incidence angle is all higher than critical angle, this allows for close rotating shaft and 103 light of directive reflecting surface is totally reflected, as shown in figure 4, Reflected light line is finally projected from exit facet 102 by repeatedly deflection, is allowed for the light sent out from light source in this way and is concentrated To at the aperture where exit facet 102, intensity of illumination is improved, actual illumination needs are met.

Certainly, in order to preferably improve the visual effect of illumination, between 103 top of the exit facet 102 and reflecting surface Joint face is scattering surface 104, and the longitudinal cross-section of the scattering surface 104 is the isosceles trapezoidal structure to stand upside down, by 104 folding of scattering surface The light penetrated is sparse divergent shape light beam so that from exit facet 102 to visually connecting to can be sent out between reflecting surface 103 Continuous transition light beam keeps the uniformity of illumination, as shown in figure 11；At the same time, in order to improve dispersion effect, the scattering surface 104 can be used frosting.

Certainly, the utility model has also carried out Curve guide impeller to LED light source, and the LED light source 2 includes light emitting diode 201 and drive circuit board 202, the top of light emitting diode 201 be additionally provided with the protective cover being engaged by clamping with drive circuit board 202 203, as shown in Fig. 5-Figure 11, the light emitting diode 201 is in the focal position of the plane of incidence 101, the drive circuit board 202 One side close to light emitting diode 201 is reflective layer, and the light sent out in this way from light emitting diode 20 enters guide-lighting hollow In mirror, exit facet 102 and scattering surface 104 of most of light through guide-lighting hollow lens project, and some light passes through reflecting surface The space between the plane of incidence 10 and light source is returned to after 103, guide-lighting hollow lens is re-entered into after being again reflected, such as Figure 10 institutes Show, until being projected from exit facet 102 and scattering surface 104, improves light emission rate.

Certainly, in order to improve the reliability of assembly, simplify structure, improve the flattening of lamp bead, also to its detailed structure into Optimization design is gone, in the specific implementation, the lower surface of drive circuit board 202 is also associated with fixed patch 3, and fixed patch 3 pastes It closes on LED support 6, sealing rubber ring 4 is connected between fixed patch 3 and the outer rim of lens body 1；Its assembling process such as Fig. 7- Shown in 9, first LED light source 2 is fitted in by drive circuit board 202 on fixed patch 3, then by guide-lighting hollow lens according to upper It states structure to be connected on LED light source 2, finally in the one circle sealing rubber ring 4 of outer rim fitting of fixed patch 3 and lens body 1, pass through Patch and being linked and packed for LED support 6 are simple, replacement easy to maintain；And in order to reduce the thickness of lamp bead, under protective cover 203 Portion is equipped with screens ring 2031, has the locating slot 2021 coordinated with the screens ring 2031 on drive circuit board 202.

The implementation structure of certain the utility model is not limited to above structure, in the specific implementation, also can be used such as figure Structure shown in 10 eliminates scattering surface 104 at this point, on the one hand simplifying structure, and exit facet 102 uses the arc of central angle bigger Shape face.

On the other hand, protective cover 203 can be also saved, the chip combination phosphor gel of light emitting diode 201 forms convex-shaped Shape is integrally formed ladder-like by support wraps with holder, and the bottom surface of lens body 1 forms matched hierarchic structure, When assembly, chip combination phosphor gel extends upwardly into 101 institute of the plane of incidence in space, and contacts positioning with the plane of incidence 101, makes LED light source 2 keeps preferable structural stability, it is thus also avoided that direct bonded structure intensity difference increases asking for product integral thickness Topic.

Specifically, the lower position of the plane of incidence 101 can be in that inverted steps shape (is formed together with the bottom surface of lens body 1 The surface of revolution), for upward embedded with LED light source 2, (chip combination phosphor gel, LED light source 2 can be flat convex cylinder or vertical The arbitrary shapes such as cube moulding or hemispherical), in this way, being more advantageous to the positioning of LED light source 2, reduce the whole thick of product Degree, also, in process, adhesive is also not susceptible to leak into the luminous component of LED light source 2.

Correspondingly, drive circuit board/holder 202 itself can be solid smooth sheet, hollow sheet, intermediate recessed piece The arbitrary shape applicatory such as sheet of shape, middle conve shaped, any suitable mode is alternatively with the combination of LED light source 2.

In the specific implementation, the lens body 1 can be made of various transparent materials such as silica gel, glass or transparent PC；Root According to different materials to the refraction of light, the different rational design planes of incidence 101 of reflection, exit facet 102, reflecting surface 103 and scattering Face 104, by taking silica gel as an example, between refractive index is about 1.4-1.5, it is about 40 degree or so that can calculate its critical angle, when It when the angle of incident ray and normal is more than the angle, will be totally reflected, to calculate reflecting surface according to geometric properties 103 taper is less than 100 degree (being preferably less than 80 degree), and the plane of incidence 101, exit facet 102 and scattering surface 104 are according to lens Specification, aperture size be designed, as shown in Figure 10, as long as meet light beam deflection refraction needs, in actual design In, the light emitting angle, it can be achieved that 150-180 degree is reflected because of lens on light beam, realizes wide-angle, large aperture illumination.

Optionally, the plane of incidence 101 can be consistent with the luminous face curvature of LED light source 2, when light being made to be incident on the plane of incidence 101 It does not generate and changes nyctitropic refraction.

Optionally, the spline curve surface of revolution different from revolving sphere or other any suitable songs can be used in exit facet 101 Face.

Finally, it will be appreciated by those of skill in the art that can make various modifications to above-described embodiment of the disclosure, become Type and replacement, each fall within the protection domain of the disclosure as defined in the appended claims.

Claims

1. a kind of array-type LED lighting device, it includes heat sink (5) and several LED light on heat sink (5) Pearl, which is characterized in that several LED lamp beads in being in that array-like is arranged on heat sink (5), by LED support (6) pacified by LED lamp bead Dress is fixed on heat sink (5)；

The LED lamp bead includes LED light source (2) and the guide-lighting hollow lens (1) being located on LED light source (2), the leaded light The medial surface and lateral surface of hollow lens (1) are respectively provided with the plane of incidence (101) and exit facet (102), the leaded light hollow lens (1) it is revolving body, the plane of incidence (101) is the paraboloid of revolution that Open Side Down, and exit facet (102) is revolution evagination arcwall face, is returned Swivel, paraboloid of revolution and revolution evagination arcwall face rotating shaft having the same, the LED light source (2) are located at guide-lighting hollow In the focus of the plane of incidence (101) of mirror (1).

2. array-type LED lighting device as described in claim 1, which is characterized in that the outside of the leaded light hollow lens (1) Center portion be additionally provided with reflecting surface (103), the reflecting surface (103) is the revolution taper surface of opening upwards, turns round taper surface With paraboloid of revolution rotating shaft having the same.

3. array-type LED lighting device as claimed in claim 2, which is characterized in that exit facet (102) and reflecting surface (103) There is the scattering surface (104) as joint face between top.

4. array-type LED lighting device as claimed in claim 3, which is characterized in that the LED light source (2) includes luminous two Pole pipe (201) and drive circuit board (202), the LED light source (2) are fixed together non-disconnectable with guide-lighting hollow lens (1) It unloads.

5. array-type LED lighting device as claimed in claim 4, which is characterized in that the lower surface of drive circuit board (202) is also It is connected with fixed patch (3), fixed patch (3) is fitted on LED support (6), fixed patch (3) and guide-lighting hollow lens (1) Outer rim between be connected with sealing rubber ring (4).

6. array-type LED lighting device as claimed in claim 5, which is characterized in that the top of light emitting diode (201) is also set There are the protective cover (203) being engaged by clamping with drive circuit board (202), the lower part of protective cover (203) to be equipped with screens ring (2031), drive There is the locating slot (2021) coordinated with the screens ring (2031) on dynamic circuit board (202).

7. the array-type LED lighting device as described in any one of claim 1-6, which is characterized in that the leaded light is hollow Lens (1) are made of silica gel, glass or transparent PC material.

8. array-type LED lighting device as claimed in claim 2, which is characterized in that the bottom of the leaded light hollow lens (1) In inverted steps shape, it to be used for upward embedded with LED light source (2).

9. array-type LED lighting device as claimed in claim 8, which is characterized in that the LED light source (2) extends upwardly into institute State the inside hollow space of guide-lighting hollow lens (1).