CN209558061U - A kind of lamp bead and lamps and lanterns - Google Patents

Abstract

It includes bracket, LED chip, fluorescent glue and lens jacket that the utility model, which provides a kind of lamp bead and lamps and lanterns, the lamp bead,.The lens jacket can continuously reflect the light that LED chip is issued through fluorescent glue twice, form batswing tab light distribution region, realize wide-angle light distribution effect.On the basis of realizing wide-angle light distribution effect, the maximum of the lamp bead is away from high bigger away from high ratio than the maximum compared to common LED lamp bead, therefore it is applied to compared to common LED lamp bead in the straight-down negative lamps and lanterns of equal height, the utility model can meet illuminance uniformity requirement out using the less lamp bead of quantity.

Description

A kind of lamp bead and lamps and lanterns

Technical field

The utility model relates to LED lamp fields, in particular to a kind of lamp bead and lamps and lanterns.

Background technique

Now currently, common straight-down negative lamps and lanterns are all by LED (Light Emitting Diode, light emitting diode) lamp bead It is arranged in the form of babysbreath in lamps and lanterns, the demand of the uniform-illumination of the light of lamps and lanterns generation is met with this.Due to existing Common LED lamp bead away from high smaller (for example, 1.2 times), in order to meet lamps and lanterns generation light uniform-illumination, needing will be general Logical LED lamp bead carries out babysbreath arrangement in lamps and lanterns with the interval of very little.A large amount of common LED lamp bead is needed to realize lamp thus The uniform-illumination of tool so causes the cost of straight-down negative lamps and lanterns to remain high always.

In view of this, how to optimize LED lamp bead structure, so that the uniform-illumination of lamps and lanterns is realized using less LED lamp bead, As those skilled in the art's problem in urgent need to solve.

Utility model content

The purpose of this utility model is to provide a kind of lamp bead and lamps and lanterns.

In a first aspect, the utility model provides a kind of lamp bead, the lamp bead includes bracket, LED chip, fluorescent glue and lens Layer；

The groove for placing the LED chip is provided on the bracket；

The LED chip is fixed in the groove by the fluorescent glue, and the fluorescent glue is by the LED chip packet It wraps up in；

The lens jacket be located in the bracket side of the LED chip setting；

The lens jacket includes the first surface close to the LED chip and the second curved surface far from the LED chip；

The thickness of the lens jacket increases around along the center of the LED chip；

The light that the LED chip generates is projected via after the first surface from second curved surface.

Optionally, the first surface is projected as parabola, institute in the plane vertical with plane where the bracket The central point for stating LED chip is the parabolical focus.

Optionally, second curved surface is projected as M type curve in the plane vertical with plane where the bracket, The intermediate concave point of middle M type curve is corresponding with the central point of the LED chip.

Optionally, the axis that the lens jacket is constituted with the central point of the intermediate concave point of the second curved surface and the LED chip Axisymmetricly.

Optionally, the drop shadow spread of the position that the first surface is contacted with the bracket on the bracket is slightly larger than institute State the drop shadow spread of groove on the bracket.

Optionally, the bracket further includes the diversion trench to prevent the fluorescent glue and the lens jacket from contacting, described Diversion trench is arranged between the position that the groove and the first surface are contacted with the bracket.

Optionally, the bracket further includes the block piece to prevent the fluorescent glue and the lens jacket from contacting, described Block piece is arranged between the position that the groove and the first surface are contacted with the bracket.

Optionally, the lens jacket is made of transparent silica gel.

Second aspect, the utility model provide a kind of lamps and lanterns, including lampshade, chassis, driving power and multiple first aspects The lamp bead；

The driving power and multiple lamp beads are arranged on the side on the chassis；

The lamp cover forms one together in the side for being provided with the driving power Yu multiple lamp beads on the chassis Accommodate the space of the driving power Yu multiple lamp beads；

The driving power and multiple lamp beads are electrically connected, to provide the lamp bead luminous institute's electricity demand.

Optionally, multiple lamp beads are evenly distributed on the chassis with the spacing of 3H/2, wherein H is the lamps and lanterns Thickness.

Compared with prior art, beneficial effect provided by the utility model includes: that the utility model provides a kind of lamp bead and lamp Tool, the lamp bead includes bracket, LED chip, fluorescent glue and lens jacket.Lens jacket in lamp bead provided by the utility model due to The thickness of lens jacket increases around along the center of LED chip so that the light that LED chip is issued through fluorescent glue continuously reflects Twice, batswing tab light distribution region is formed, realizes wide-angle light distribution effect.On the basis of realizing wide-angle light distribution effect, this reality Maximum with the lamp bead of novel offer is bigger away from high ratio than the maximum compared to common LED lamp bead away from height, therefore is applied to same Compared to common LED lamp bead in the straight-down negative lamps and lanterns of height, using the less lamp bead provided by the utility model of quantity Meet illuminance uniformity requirement out.

Detailed description of the invention

It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing be briefly described.It should be appreciated that the following drawings illustrates only some embodiments of the utility model, therefore should not be by Regard the restriction to range as.For those of ordinary skill in the art, without creative efforts, may be used also To obtain other relevant attached drawings according to these attached drawings.

Fig. 1 is the structural schematic diagram of lamp bead provided by the embodiment of the utility model；

Fig. 2 is the sectional view of lamp bead provided by the embodiment of the utility model；

Fig. 3 is the light distribution area schematic of common LED lamp bead in the prior art；

Fig. 4 is the light distribution area schematic of lamp bead provided by the embodiments of the present application；

Fig. 5 is lamp bead first partial cross-sectional view provided by the embodiment of the utility model；

Fig. 6 is the second partial sectional view of lamp bead provided by the embodiment of the utility model.

Icon: 1- bracket；2-LED chip；3- fluorescent glue；4- lens jacket；10- groove；11- diversion trench；12- block piece； 41- first surface；The second curved surface of 42-.

Specific embodiment

It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described.Obviously, it is retouched The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.

Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all Belong to the range of the utility model protection.

It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.

In the description of the present invention, it should be understood that term " on ", "lower", "inner", "outside", "left", "right" etc. The orientation or positional relationship of instruction be based on the orientation or positional relationship shown in the drawings or the utility model product use when The orientation or positional relationship that the orientation or positional relationship or those skilled in the art usually put usually understand, be only for Convenient for description the utility model and simplify description, rather than the equipment of indication or suggestion meaning or element must have specifically Orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

In addition, term " first ", " second " etc. are only used for distinguishing description, it is not understood to indicate or imply relatively important Property.

In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, " setting ", Terms such as " connections " shall be understood in a broad sense, for example, " connection " may be a fixed connection, may be a detachable connection, or one Ground connection；It can be mechanical connection, be also possible to be electrically connected；Can be and be directly connected to, can also by between intermediary in succession It connects, can be the connection inside two elements.For the ordinary skill in the art, can understand as the case may be The concrete meaning of above-mentioned term in the present invention.

With reference to the accompanying drawing, specific embodiment of the present utility model is described in detail.

Fig. 1 is please referred to, Fig. 1 is the structural schematic diagram of lamp bead provided by the embodiment of the utility model.The lamp bead includes branch Frame 1, LED chip 2, fluorescent glue 3 and lens jacket 4.

The groove 10 for placing the LED chip 2 is provided on the bracket 1.

The LED chip 2 is fixed in the groove 10 by the fluorescent glue 3.

In the present embodiment, fluorescent glue 3 can be mixed to form by fluorescent powder and casting glue, and fluorescence wind is used for LED chip 2 The light of sending is converted into white light, and casting glue can be used for fixed LED chip 2.

The lens jacket 4 be located in 1 side of bracket that the LED chip 2 is arranged.

Referring to figure 2., Fig. 2 is the sectional view of lamp bead provided by the embodiment of the utility model.The lens jacket 4 includes close Second curved surface 42 of the first surface 41 of the LED chip 2 and the separate LED chip 2.

The thickness of the lens jacket 4 increases around along the center of the LED chip 2.

The light that the LED chip 2 generates is projected via after the first surface 41 from second curved surface 42.

In the present embodiment, the thickness of lens jacket 4 is gradually increased around by the midpoint of lens jacket 4, and LED chip 2 The light of sending can reflect on present first surface 41, change once light-distribution region, and then light passes through the second curved surface 42 again When, it reflects again, and change once light-distribution region, circular light distribution region originally can be changed to range is bigger to match Light region.

Further, the first surface 41 is projected as parabolic in the plane vertical with the 1 place plane of bracket Line, the central point of the LED chip 2 are the parabolical focus.

In the present embodiment, each section of the first surface 41 in 1 vertical direction of bracket is parabola, LED chip 2 Central point is as parabolical focus.

Further, second curved surface 42 is projected as M type song in the plane vertical with the 1 place plane of bracket Line, wherein the intermediate concave point of M type curve is corresponding with the central point of the LED chip 2.

In the present embodiment, corresponded on the second curved surface 42 LED chip 2 position can set it is recessed towards 2 direction of LED chip, with Making the second curved surface 42 is being in M type with the section of 1 vertical direction of bracket.After the first curve is by light refraction, pass through section It is reflected again for the second curved surface 42 of M type, the light distribution region of bat aerofoil profile can be reached.

It should be understood that in lighting, the maximum maximum away from high than that can refer to when guaranteeing required uniform-illumination The ratio between light source spacing and light source computed altitude, maximum bigger away from high ratio, the light source of brightness uniformity needed for guaranteeing is fewer, it is maximum away from For height than smaller, the light source of brightness uniformity needed for guaranteeing is more.In the present embodiment, lamp can be judged according to maximum away from high ratio The quantity of lamp bead is needed in tool.

Referring to figure 3., Fig. 3 is the light distribution area schematic of common LED lamp bead provided by the embodiments of the present application.In this implementation In example, the luminous lambert's body that can be of common LED lamp bead shines, light distribution region as shown in figure 3, light directly projects, The range that light can cover is small, when being arranged in lamps and lanterns, in order to reach the common LED lamp bead that uniformly needs of required illumination Quantity is more, maximum away from high smaller.

Referring to figure 4., Fig. 4 is the light distribution area schematic of lamp bead provided by the embodiments of the present application.In the present embodiment, The light that LED chip 2 emits is irradiated to first surface 41 via fluorescent glue 3, and reflects on first surface 41, due to light from Optically thinner medium (air) enters optically denser medium (lens jacket) when first surface 41 is reflected, and incidence angle is greater than refraction angle, because First surface 41 is for a parabolic surface towards close to bracket 1 after the incident light close to 1 side of bracket reflects on first surface 41 Side deviates；It is being reflected on the second curved surface 42 after the transmission of lens jacket 4, is entering light from optically denser medium and dredge Jie Matter, incidence angle is less than refraction angle, and the structure of lens jacket 4 is by the structure of center progressive additive around, the second curved surface 42 Curvature be also from being gradually reduced far from LED chip 2 to close to the direction of LED chip 2, in the light after the refraction of first surface 41 After line is irradiated to the second curved surface 42, the light reflected from the second curved surface 42 can continue to project to 1 side of bracket, form bat Wing light distribution region.By experimental analysis, LED lamp bead can be made to have the effect of 160 ° of light emitting angle.In the case, it tests The result shows that maximum may be implemented away from height than reaching 3 times in lamp bead provided by the embodiment of the utility model, common LED lamp bead shines Angle is then that 120 ° of lambert's body shines, maximum away from only 1.2 times of height ratio.It can be reached using provided by the embodiment of the utility model At the LED lamp bead in batswing tab light distribution region, the LED lamp bead of more than half can be saved in identical lamps and lanterns.

Further, the lens jacket 4 is with the central point institute structure of the intermediate concave point of the second curved surface 42 and the LED chip 2 At axis axisymmetricly.

In the present embodiment, lens jacket 4 can use rotational symmetry structure, and symmetry axis can be in the second curved surface 42 Between the axis that is constituted of concave point and the central point of the LED chip 2.

It should be understood that in other embodiments, the second curved surface 42 is also possible to spherical arc, the second curved surface 42 is being propped up Section in 1 vertical direction of frame is semicircle.Second curved surface 42 can also be consistent with 41 structure of first surface, vertical in bracket 1 Section on direction is parabola, and parabolical focus is also possible to the central point of LED chip 2.It is worth noting that in this reality It applies in example, the structure satisfaction of first surface 41 and the second curved surface 42 thickeies the thickness of lens jacket 4 gradually around by center Structure, so that it may so that the light distribution regional perspective for the light that LED chip 2 is emitted via fluorescent glue 3 becomes larger, make lamp bead it is maximum away from Height is than increasing.

Further, drop shadow spread of the position that the first surface 41 is contacted with the bracket 1 on the bracket 1 omits Greater than drop shadow spread of the groove 10 on the bracket 1.

It should be understood that in this embodiment, fluorescent glue 3 is filled into when LED chip 2 being fixed in groove 10, glimmering Optical cement 3 has spilling, and the fluorescent glue 3 overflowed can pollute lens jacket 4 after contacting with lens jacket 4, influence the light distribution of lamp bead.By Gap is reserved between one position contacted with bracket 1 of curved surface 41 and groove 10, can prevent the fluorescent glue 3 overflowed directly and lens Layer 4 contacts.

In the present embodiment, bracket 1 and lens jacket 4 can be integrated molding, can save between lens jacket 4 and bracket 1 Locating part cost and lens jacket 4 model cost.

Referring to figure 5., Fig. 5 is lamp bead first partial cross-sectional view provided by the embodiment of the utility model.The bracket 1 also wraps The diversion trench 11 to prevent the fluorescent glue 3 and the lens jacket 4 from contacting is included, the diversion trench 11 is arranged in the groove 10 Between the position that is contacted with the bracket 1 of the first surface 41.

It in the present embodiment, can 1 gap of bracket between the position that first surface 41 is contacted with bracket 1 and groove 10 One diversion trench 11 of upper setting, diversion trench 11 are circumferentially positioned between the position that first surface 41 is contacted with bracket 1 and groove 10, can It the fluorescent glue 3 when filling groove 10 more than spilling to be accommodated in diversion trench 11, prevents fluorescent glue 3 from contacting with lens jacket 4, protects The light distribution for having demonstrate,proved lamp bead is correct.

Fig. 6 is please referred to, Fig. 6 is the second partial sectional view of lamp bead provided by the embodiment of the utility model.The bracket 1 also wraps The block piece 12 to prevent the fluorescent glue 3 and the lens jacket 4 from contacting is included, the block piece 12 is arranged in the groove 10 Between the position that is contacted with the bracket 1 of the first surface 41.

It in the present embodiment, can 1 gap of bracket between the position that first surface 41 is contacted with bracket 1 and groove 10 One block piece 12 of upper setting, diversion trench 11 are circumferentially positioned between the position that first surface 41 is contacted with bracket 1 and groove 10, can Stop more than the fluorescent glue 3 of spilling to outside block piece 12 when groove 10 will be filled, prevent fluorescent glue 3 from contacting with lens jacket 4, protects The light distribution for having demonstrate,proved lamp bead is correct.

Further, the lens jacket 4 is made of transparent silica gel.

In the present embodiment, lens jacket 4 can be made by transparent silica gel, in the other embodiments of the present embodiment, thoroughly Mirror layer 4 can also make of TPU (Thermoplastic polyurethanes, thermoplastic polyurethane elastomer rubber).

The utility model embodiment also provides a kind of lamps and lanterns, including lampshade, chassis, driving power and multiple lamps above-mentioned Pearl.

The driving power and multiple lamp beads are arranged on the side on the chassis.

The lamp cover forms one together in the side for being provided with the driving power Yu multiple lamp beads on the chassis Accommodate the space of the driving power Yu multiple lamp beads.

The driving power and multiple lamp beads are electrically connected, to provide the lamp bead luminous institute's electricity demand.

Further, multiple lamp beads are evenly distributed on the chassis with the spacing of 3H/2, wherein H is the lamp The thickness of tool.

In the present embodiment, the thickness H of lamps and lanterns can refer to the chassis of lamps and lanterns to the average distance between lampshade, at other In embodiment, the thickness H of lamps and lanterns may also mean that the chassis of lamps and lanterns to the maximum distance of lampshade.

In conclusion the utility model embodiment provides a kind of lamp bead and lamps and lanterns, the lamp bead include bracket, LED chip, Fluorescent glue and lens jacket.The groove for placing the LED chip is provided on the bracket.The LED chip passes through described Fluorescent glue is fixed in the groove, and the fluorescent glue wraps up the LED chip.The lens jacket be located in the LED The bracket side of chip setting.The lens jacket includes close to the first surface of the LED chip and far from the LED chip Second curved surface.The thickness of the lens jacket increases around along the center of the LED chip.The light that the LED chip generates It is projected via after the first surface from second curved surface.It, can be by lamp bead by bright using lamp bead provided by the utility model The luminous light distribution area change projected of primary body is the bigger batswing tab light distribution region of range, needed for being met with less lamp bead The light illumination of brightness is uniform, has saved the cost of manufacture of lamps and lanterns.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of lamp bead characterized by comprising bracket, LED chip, fluorescent glue and lens jacket；

The groove for placing the LED chip is provided on the bracket；

The LED chip is fixed in the groove by the fluorescent glue, and the fluorescent glue wraps up the LED chip；

The lens jacket be located in the bracket side of the LED chip setting；

The lens jacket includes the first surface close to the LED chip and the second curved surface far from the LED chip；

The thickness of the lens jacket is gradually increased from the direction of the center of the LED chip around；

The light that the LED chip generates is projected via after the first surface from second curved surface.

2. lamp bead according to claim 1, which is characterized in that the first surface is vertical with plane where the bracket Plane on be projected as parabola, the central point of the LED chip is the parabolical focus.

3. lamp bead according to claim 2, which is characterized in that second curved surface is vertical with plane where the bracket Plane on be projected as M type curve, wherein the intermediate concave point of M type curve is corresponding with the central point of the LED chip.

4. lamp bead according to claim 3, which is characterized in that the lens jacket is with the intermediate concave point of the second curved surface and described The axis that the central point of LED chip is constituted is axisymmetricly.

5. lamp bead according to claim 1, which is characterized in that the position that the first surface is contacted with the bracket is in institute The drop shadow spread on bracket is stated slightly larger than the drop shadow spread of the groove on the bracket.

6. lamp bead according to claim 5, which is characterized in that the bracket further includes to prevent the fluorescent glue and institute The diversion trench of lens jacket contact is stated, the position that the groove and the first surface are contacted with the bracket is arranged in the diversion trench Between setting.

7. lamp bead according to claim 5, which is characterized in that the bracket further includes to prevent the fluorescent glue and institute The block piece of lens jacket contact is stated, the position that the groove and the first surface are contacted with the bracket is arranged in the block piece Between setting.

8. lamp bead according to claim 1, which is characterized in that the lens jacket is made of transparent silica gel.

9. a kind of lamps and lanterns, which is characterized in that including described in any one of lampshade, chassis, driving power and multiple claim 1-8 Lamp bead；

The driving power and multiple lamp beads are arranged on the side on the chassis；

The lamp cover forms an accommodating together in the side for being provided with the driving power Yu multiple lamp beads on the chassis The space of the driving power and multiple lamp beads；

The driving power and multiple lamp beads are electrically connected, to provide the lamp bead luminous institute's electricity demand.

10. lamps and lanterns according to claim 9, which is characterized in that multiple lamp beads are evenly distributed on the spacing of 3H/2 On the chassis, wherein H is the thickness of the lamps and lanterns.