CN207065133U

CN207065133U - A kind of straight-down negative LED flat lamp

Info

Publication number: CN207065133U
Application number: CN201721004091.1U
Authority: CN
Inventors: 盛玉林
Original assignee: KUNSHAN CHENGTAI ELECTRICAL CO Ltd
Current assignee: KUNSHAN CHENGTAI ELECTRICAL CO Ltd
Priority date: 2017-08-11
Filing date: 2017-08-11
Publication date: 2018-03-02
Anticipated expiration: 2027-08-11

Abstract

The utility model discloses a kind of straight-down negative LED flat lamp, including diffuser plate, backboard and the LED light bar between diffuser plate and backboard, LED light bar is fixed on backboard, LED light bar includes aluminium base bar and some LEDs lamp beads on aluminium base bar, and aluminium base bar is located at the lower surface of backboard and aluminium base bar is in the back-shaped structure formed from center to inverted position turn；Diffuser plate includes relative incidence surface and exiting surface, and the incidence surface of diffuser plate has several projection, and projection includes big raised and several the small projections in a center.The utility model light utilization is high, simplifies production technology, reduces production cost, increases service life, improves lighting quality, increases comfort, makes the size and shape of LED to be arbitrarily adapted to be actually needed.

Description

A kind of straight-down negative LED flat lamp

Technical field

The utility model belongs to technical field of LED illumination, more particularly to a kind of straight-down negative LED flat lamp.

Background technology

Under advocating the historical background of low-carbon economy energetically in the current whole world, LED is low due to consuming energy, energy-conserving and environment-protective it is excellent Point, progressively it is used to replace traditional incandescent lamp, turns into the new light sources for replacing conventional light source.LED is as a kind of new energy-saving ring Guarantor's type light source, has been widely used for lighting field, such as, the primary light such as the pendent lamps of family expenses, Ceiling light, Down lamp.

LED flat lamp generally existing problems with present：First, because LED is located at the side of light guide plate, it is necessary to by leading Tabula rasa is down guide-lighting, causes the utilization rate of light low, and efficiency declines；2nd, bright among easily occurring, both sides are dark, or different angle is bright Spend inconsistent, influence lighting quality；3rd, the optical sheet such as the light guide plate in the LED planar lamp to be lighted due to side, reflecting plate is in Compare at high temperature, it is easy to aging yellowing, shorten the service life of flat lamp.

Utility model content

The utility model is mainly solving the technical problems that provide a kind of straight-down negative LED flat lamp, and the utilization rate of light is high, letter Metaplasia production. art, reduce production cost, increase service life, improve lighting quality, increase comfort, make LED size and Shape can arbitrarily be adapted to be actually needed.

In order to solve the above technical problems, the technical scheme that the utility model uses is：A kind of straight-down negative LED flat plate Lamp, including diffuser plate, backboard and the LED light bar between the diffuser plate and the backboard, LED light bar are fixed on backboard, The LED light bar includes aluminium base bar and some LEDs lamp beads on the aluminium base bar, and the aluminium base bar is located at the backboard Lower surface and the aluminium base bar be in back-shaped structure from center to inverted position turn that formed from；

The diffuser plate includes relative incidence surface and exiting surface, and the incidence surface of the diffuser plate has the convex of several Rise, described raised including big raised and several the small projections in a center, big raised plane area coverage is 15-25mm², height It is 1.5-2mm, the small projection is positioned at the big raised periphery and is uniformly distributed, and small raised plane area coverage is 5- 10mm², height is 0.5-1.5mm, it is big it is raised with adjacent small raised centre-to-centre spacing be 20-25mm, it is adjacent it is small it is raised between in The heart is away from being 10-20mm；

The raised side wall is gradually to the centroclinal inclined-plane of projection, the projection from raised bottom to top surface Inclined-plane on there are multiple diffusion points.

Further say, the arrangement of the diffusion point is along the raised inclined-plane from raised bottom to top surface The gradually unit area coverage of increase diffusion point.

Further say, the arrangement of the diffusion point is one kind in following three kinds of arrangements：

First, several it is described diffusion point between spacing it is equal and it is described diffusion point volume gradually increase；

2nd, the spacing between several described diffusion points is gradually reduced and the volume of diffusion point is identical；

3rd, the spacing between several described diffusion points is gradually reduced and the volume of diffusion point gradually increases.

Further say, it is described raised to be shaped as truncated cone-shaped, cone, positive tetrahedron shape or positive prismatic table shape.

Further say, the diffusion point is shaped as truncated cone-shaped, cone, regular polygon shape or positive prismatic table shape.

Further say, the angle α of the raised inclined-plane and vertical direction is 30-60 °.

Further say, the height of the diffusion point is 0.05-0.15mm.

Further say, raised up in the middle part of the backboard, and the edge at the edge of the backboard and the diffuser plate It is affixed merging and is fixed on housing.

Further say, the exiting surface of the diffuser plate is frosting.

The beneficial effects of the utility model are：

The utility model includes diffuser plate, backboard and the LED light bar between diffuser plate and backboard, LED light bar and sent Light come out by diffuser plate direct irradiation, the utilization rate of light is high, broken traditional LED lamp to light guide plate and reflecting plate according to Bad, weight is relative to be mitigated, and is easy to transport, is simplified production technology, reduces production cost, is overcome traditional side entering type LED to be located at and is led The shortcomings that tabula rasa side, the size and shape of LED is set arbitrarily to be adapted to be actually needed；

LED light bar includes aluminium base bar and some LEDs lamp beads on aluminium base, aluminium base bar are located at the following table of backboard Face, diffuser plate do not contact directly with heat generating spot, and the flat lamp to be lighted compared to side, the temperature residing for diffuser plate is much lower, no Easy aging xanthochromia, service life greatly extend；

Aluminium base bar is located at the lower surface of backboard and aluminium base bar is in back-shaped arrangement, increases the injection amount of unit area light, knot Structure is reasonable, prevents brightness unevenness, improves lighting quality；

The incidence surface of diffuser plate has several projection, and raised side wall is gradually to convex from raised bottom to top surface The centroclinal inclined-plane risen, specific multiple diffusion points on raised inclined-plane, passes through the light that straight-down negative LED flat lamp is sent It is evenly dispersed out after diffusion point and projection so that light will not be especially dazzling, more comfort.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model；

Fig. 2 is the structural representation of LED light bar of the present utility model；

Fig. 3 is raised structural representation of the present utility model；

Each several part mark is as follows in accompanying drawing：

Diffuser plate 1, big projection 11, small by raised 12, diffusion point 13, backboard 2, LED light bar 3, aluminium base bar 31, LED lamp bead 32 And angle α.

Embodiment

Preferred embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings, so that the advantages of the utility model It can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear and definite so as to be made to the scope of protection of the utility model Define.

Embodiment：A kind of straight-down negative LED flat lamp, as shown in Figure 1-Figure 3, including diffuser plate 1, backboard 2 and positioned at described LED light bar 3 between diffuser plate 1 and the backboard 2, LED light bar 3 are fixed on backboard 2, and the LED light bar 3 includes aluminium base bar 31 With some LEDs lamp beads 32 on the aluminium base bar 31, the aluminium base bar 31 is located at the lower surface of the backboard 2 and described Aluminium base bar 31 is in the back-shaped structure formed from center to inverted position turn, and the shape of the aluminium base bar 31 is similar to mosquito-repellent incense shape；

The diffuser plate 1 includes relative incidence surface and exiting surface, and the incidence surface of the diffuser plate 1 has the convex of several Rise, described raised small by raised 12 with several including a center big raised 11, the plane area coverage of big projection 11 is 15- 25mm², height is 1.5-2mm, described small raised 12 positioned at described big raised 11 periphery and be uniformly distributed, small raised 12 it is flat Face area coverage is 5-10mm², height is 0.5-1.5mm, and big projection 11 and adjacent small raised 12 centre-to-centre spacing are 20-25mm, Centre-to-centre spacing between adjacent small raised 12 is 10-20mm；

When it is implemented, projection is truncated conical shape, big raised 11 basal diameter is 4mm and height 2mm, described small The basal diameter of projection 12 is 3mm and height is 1.5mm, and big projection 11 and adjacent small raised 12 centre-to-centre spacing are 20mm, adjacent Centre-to-centre spacing between small raised 12 is 10mm.

The raised side wall is gradually to the centroclinal inclined-plane of projection, the projection from raised bottom to top surface Inclined-plane on there are multiple diffusion points 13, the diffusion point 13 is concave point or salient point.

The arrangement of the diffusion point 13 is gradually increased to top surface along the raised inclined-plane from raised bottom Spread the unit area coverage of point.

The arrangement of the diffusion point 13 is one kind in following three kinds of arrangements：

First, several it is described diffusion point 13 between spacing it is equal and it is described diffusion point 13 volume gradually increase；

2nd, the spacing between several described diffusion points 13 is gradually reduced and the volume of diffusion point 13 is identical；

3rd, the spacing between several described diffusion points 13 is gradually reduced and the volume of diffusion point 13 gradually increases.

It is described raised to be shaped as truncated cone-shaped, cone, positive tetrahedron shape or positive prismatic table shape.

The diffusion point 13 is shaped as truncated cone-shaped, cone, regular polygon shape or positive prismatic table shape.

The raised inclined-plane and the angle α of vertical direction are 30-60 °.

The height of the diffusion point 13 is 0.05-0.15mm.

The middle part of the backboard 2 raises up, and the edge of the backboard 2 is affixed with the edge of the diffuser plate 1 and merged It is fixed on housing.

The exiting surface of the diffuser plate 1 is frosting.

Operation principle of the present utility model is as follows：The light that LED light bar is sent comes out by diffuser plate direct irradiation, the profit of light It is high with rate, break dependence of the traditional LED lamp to light guide plate and reflecting plate, weight is relative to be mitigated, and is easy to transport, and simplifies production work Skill, production cost is reduced, the shortcomings that overcoming traditional side entering type LED to be located at light guide plate side, makes the size and shape of LED can Arbitrarily it is adapted to be actually needed, light is evenly dispersed out after diffusion point and projection so that light will not be pierced especially Eye, more comfort；

LED light bar includes aluminium base bar and some LEDs lamp beads on aluminium base, aluminium base bar are located at the following table of backboard Face, diffuser plate do not contact directly with heat generating spot, and the flat lamp to be lighted compared to side, the temperature residing for diffuser plate is much lower, no Easy aging xanthochromia, service life greatly extend.

Embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model, it is every The equivalent structure transformation made using the utility model specification and accompanying drawing content, or directly or indirectly it is used in other correlations Technical field, similarly it is included in scope of patent protection of the present utility model.

Claims

A kind of 1. straight-down negative LED flat lamp, it is characterised in that：Including diffuser plate (1), backboard (2) and positioned at the diffuser plate and LED light bar (3) between the backboard, LED light bar are fixed on backboard, and the LED light bar includes aluminium base bar (31) and positioned at institute State some LEDs lamp beads (32) on aluminium base bar, the aluminium base bar be located at the lower surface of the backboard and the aluminium base bar be in by The back-shaped structure that center forms to inverted position turn；

The diffuser plate includes relative incidence surface and exiting surface, and the incidence surface of the diffuser plate has several projection, institute Stating projection includes a center big raised (11) and several small raised (12), and the plane area coverage of big projection is 15-25mm², Height is 1.5-2mm, and the small projection is positioned at the big raised periphery and is uniformly distributed, and small raised plane area coverage is 5-10mm², height is 0.5-1.5mm, and big raised and adjacent small raised centre-to-centre spacing is 20-25mm, between adjacent small projection Centre-to-centre spacing is 10-20mm；

The raised side wall be from raised bottom to top surface gradually to the centroclinal inclined-plane of projection, it is described raised oblique There are multiple diffusion points (13) on face.
A kind of 2. straight-down negative LED flat lamp according to claim 1, it is characterised in that：The arrangement of the diffusion point It is the unit area coverage for gradually increasing diffusion point from raised bottom to top surface along the raised inclined-plane.
A kind of 3. straight-down negative LED flat lamp according to claim 2, it is characterised in that：The arrangement of the diffusion point For one kind in following three kinds of arrangements：

First, several it is described diffusion point between spacing it is equal and it is described diffusion point volume gradually increase；

2nd, the spacing between several described diffusion points is gradually reduced and the volume of diffusion point is identical；

3rd, the spacing between several described diffusion points is gradually reduced and the volume of diffusion point gradually increases.
A kind of 4. straight-down negative LED flat lamp according to claim 1, it is characterised in that：It is described raised to be shaped as round platform Shape, cone, positive tetrahedron shape or positive prismatic table shape.
A kind of 5. straight-down negative LED flat lamp according to claim 1, it is characterised in that：The diffusion point is shaped as justifying Platform shape, cone, regular polygon shape or positive prismatic table shape.
A kind of 6. straight-down negative LED flat lamp according to claim 1 or 4, it is characterised in that：The raised inclined-plane is with hanging down Nogata to angle (α) be 30-60 °.
A kind of 7. straight-down negative LED flat lamp according to claim 1, it is characterised in that：It is described diffusion point height be 0.05-0.15mm。
A kind of 8. straight-down negative LED flat lamp according to claim 1, it is characterised in that：The middle part of the backboard is convex Rise, and the edge of the backboard is affixed to merge and is fixed on housing with the edge of the diffuser plate.
A kind of 9. straight-down negative LED flat lamp according to claim 1, it is characterised in that：The exiting surface of the diffuser plate is Frosting.