CN201672312U

CN201672312U - Led lamp

Info

Publication number: CN201672312U
Application number: CN2010201932621U
Authority: CN
Inventors: 李俊杰
Original assignee: QIHUA CO Ltd
Current assignee: QIHUA CO Ltd
Priority date: 2010-05-18
Filing date: 2010-05-18
Publication date: 2010-12-15
Anticipated expiration: 2020-05-18

Abstract

The utility model relates to an LED lamp comprising a lamp cup (10), a lamp holder (70) arranged at the bottom of the lamp cup (10), and lamp panels positioned at the upper part of the lamp cup (10), wherein the lamp panels are provided with LEDs (90) and comprise three isosceles trapezoid side lamp panels (80) and a top lamp panel (40), and the trapezoidal waists of the three isosceles trapezoid side lamp panels (80) are sequentially connected end to end to enclose a triangular truncated pyramid; the top lamp panel (40) covers the top of the triangular truncated pyramid; and the bottom of the triangular truncated pyramid is arranged at the upper surface of the lamp cup (10) and fixed. By adopting the lamp panels with isosceles trapezoid structures, the LED lamp enables a dip angle larger than 90 degrees to be formed among the side panels and the top panel, enables the light rays of the LEDs on the side panels to incline towards the light rays of the LEDs on the top panel, and effectively reduces or even eliminates the existence of blind illumination areas at a certain range.

Description

The LED lamp

Technical field

The utility model relates to the LED field of light fittings, more particularly, relates to a kind of LED lamp that can reduce even avoid the lighting blind zone territory.

Background technology

LED is with plurality of advantages such as its life-span length, energy-conserving and environment-protective and become the new type light source that lighting field is widely used, but also there is the limited and bright low shortcoming of illumination direction in LED.In order to overcome this problem, the occasion that LED is applied in need floodlight to throw light on a large scale, as shown in Figure 1, people are installed to a plurality of LED 90s on the lamp plate 80s with certain layout of arranging, a plurality of such lamp plate 80s form a circle, the bottom of lamp plate 80s is connected with Lamp cup 10s, and Lamp cup 10s is contained on the lamp socket 70s, and the front end of lamp plate 80s also is provided with LED 90s.The lamp plate that prior art adopted is a square or rectangular, then four lamp plate 80s join end to end, vertical mutually between the adjacent two lamp plate 80s, thereby guarantee that the four sides all can be by the illumination of the LED 90s on it, the top also is provided with the lamp plate 80s of the packaged LED of a having 90s, this lamp plate is perpendicular to above-mentioned four lamp plate settings, to guarantee the illumination in its dead ahead.The existing enough big light intensity of such LED lamp can realize multi-faceted illumination again, satisfies the requirement of floodlighting.

Problem is, because LED has directionality, makes the LED ray intersection zone on the corresponding lamp plate little and the lamp plate on the lamp plate 80s of side and top is vertical, as shown in Figure 1, the shadow region at P1 and P2 place in the drawings, the light irradiation less than, thereby form the lighting blind zone territory, this is disadvantageous to illumination.

The utility model content

The technical problems to be solved in the utility model is, has the defective in lighting blind zone territory at the above-mentioned LED lamp of prior art, and a kind of LED lamp that reduces even eliminate this territory, blind area is provided.

The technical scheme that its technical problem that solves the utility model adopts is: construct a kind of LED lamp, comprise Lamp cup, be contained in described Lamp cup bottom lamp socket, be positioned at the lamp plate on described Lamp cup top, LED all is installed on the described lamp plate, described lamp plate comprises side lamp plate and ceiling light plate of three isosceles trapezoids, the end to end successively triangular cone table that surrounds in the trapezoidal waist limit of described three blocks of side lamp plates, described ceiling light plate covers the top of described triangular cone table, and the bottom of described triangular cone table is installed to described Lamp cup upper face and fixing.

In LED lamp described in the utility model, the equicrural ladder plate of described three blocks of side lamp plates for equating, its trapezoidal upward base and bottom are respectively equipped with the contact pin of projection.

In LED lamp described in the utility model, described ceiling light plate be provided with described side lamp plate on three corresponding jacks of three contact pin form fit, position on base, described Lamp cup upper face is provided with three contact pin form fit, the corresponding spliced eye in position with described side lamp plate bottom.

In LED lamp described in the utility model, the contact pin of described side lamp plate cooperates with jack and spliced eye respectively, and the side lamp plate is connected and fixed with ceiling light plate and Lamp cup respectively.

In LED lamp described in the utility model, the angle between described side lamp plate and the ceiling light plate is 80～105 °.

In LED lamp described in the utility model, the angle between described side lamp plate and the ceiling light plate is 90～100 °.

In LED lamp described in the utility model, described LED lamp also comprises the pillar that extends to described ceiling light plate from described Lamp cup bottom.

In LED lamp described in the utility model, also be provided with the floor of heat radiation on the described pillar, the edge of described floor is near the inner surface of described side lamp plate.

In LED lamp described in the utility model, described Lamp cup side is provided with the fin of convex-concave, and offers on the described Lamp cup and be communicated with that it is inner with outside to discharge orifice.

Implement LED lamp of the present utility model, has following beneficial effect: the lamp plate that adopts isosceles trapezoidal structure, make the inclination angle that forms non-90 degree between side lamp plate and the ceiling light plate, the light of side lamp onboard led is tilted to the light that ceiling light plate LED is sent, effectively reduce even eliminate within the specific limits the existence in lighting blind zone territory.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:

Fig. 1 is the illuminating ray distribution schematic diagram of the LED lamp of prior art;

Fig. 2 is the structural representation of the preferred embodiment of the utility model LED lamp;

Fig. 3 is an illuminating ray distribution schematic diagram embodiment illustrated in fig. 2.

The specific embodiment

In the preferred embodiment shown in Fig. 2, LED lamp of the present utility model comprises Lamp cup 10, lamp socket 70, lamp plate, LED 90.Wherein lamp plate comprises four, is respectively three blocks of identical side lamp plates 80 and a ceiling light plate 40.LED 90 is installed on the lamp plate, and its center line is perpendicular to the surface of the lamp plate that is installed in.The center line of described LED 90 is the center line of its structure, also can be the center line of its light-emitting line.

As shown in Figure 2,, be used for the whole LED lamp is fixed to the place of needs illumination, and guarantee the electrical connection of LED lamp for the lamp socket 70 of spiral head is contained on the base plane of Lamp cup 10.Lamp cup 10 inside have bigger cavity, make the wall thickness of whole Lamp cup 10 less.Lamp cup 10 upper faces are the plane, and side surface then convex-concave is straggly, form fin, to increase the surfaces externally and internally area of Lamp cup 10, can be used for improving heat-sinking capability.Lamp cup 10 sides also offer a plurality of to discharge orifice, and to the wall of cup of discharge orifice perforation Lamp cup 10, promptly the cavity inner surface from Lamp cup 10 passes through on the outer surface, thereby the inner air and outer air of Lamp cup 10 is communicated with, and help cross-ventilation.

Also be provided with pillar 20 in the Lamp cup 10, pillar 20 bottoms are connected with Lamp cup 10 intracavity bottoms, and uprightly extend to outside Lamp cup 10 upper faces.Also be provided with floor on the pillar 20, can increase surface area equally, to strengthen the heat radiation capacity of heat transmission of light fixture.

Lamp plate is installed on the Lamp cup 10.Wherein, three side lamp plates 80 are the identical equicrural ladder plate of shape, and three trapezoidal waist limits are spliced common limit successively and joined end to end, thereby surround the triangular cone table that an end face and bottom surface are equilateral triangle, and the equilateral triangle of end face is less than the equilateral triangle of bottom surface.The center line of triangular cone table also is the line of centres of two equilateral triangles on end face and ground, is positioned on the central axis of Lamp cup 10, and is also promptly coaxial with pillar 20.Consistent so coaxial, can guarantee LED 90 on the lamp plate to the uniformity consistency of the light of all directions, guarantee brightness evenly, realize the effect of floodlighting.

Ceiling light plate 40 covers the end face of the triangular cone table that three blocks of side lamp plates 80 surround, and its shape is also subtriangular, and size is a bit larger tham the end face size of triangular cone table, but is not enough to block the light that LED 90 is sent on the side lamp plate 80.The top of pillar 20 is near the inner surface of ceiling light plate 40, and each floor is near the inner surface of the side lamp plate 80 of relevant position, with as much as possible heat on the lamp plate conducted and distributes.

The installation of side lamp plate 80 and ceiling light plate 40 and Lamp cup 10 realizes by pegging graft.Wherein, as shown in Figure 2, the contact pin that the trapezoidal upward base of three blocks of side lamp plates 80 and bottom are respectively equipped with projection; Ceiling light plate 40 be provided with side lamp plate 80 on three corresponding jacks 41 of three contact pin form fit, position on base, Lamp cup 10 upper faces are provided with the spliced eye 11 corresponding with three contact pin form fit, the position of side lamp plate 80 bottoms.The contact pin of side lamp plate 80 inserts respectively in jack 41 and the spliced eye 11 and cooperates, the contact pin of promptly going up the base inserts and inserts respectively in the jack 41, the contact pin of bottom then inserts in the corresponding spliced eye 11 respectively, and side lamp plate 80 is connected and fixed with ceiling light plate 40 and Lamp cup 10 respectively.

Because characteristics of the present utility model are to adopt the lamp plate of isosceles trapezoid to replace traditional rectangle lamp plate, thereby make between side lamp plate and the side lamp plate, be not right-angle relationship between side lamp plate and the ceiling light plate, but be one greater than 90 angles of spending, as shown in Figure 3.Adopt the mode of side lamp plate 80 and ceiling light plate 40 relative tilts, can enlarge the light that side lamp plate 80 projects ceiling light plate 40 dead ahead directions, thereby avoid the lighting blind zone territory.Through checking repeatedly, the angle between side lamp plate 80 and the ceiling light plate 40 is between 80～105 °, and preferred is 90～100 when spending, and territory, blind area scope is less.Shown in Fig. 3 is that to be 98 ° be the lighting condition of the two center line angle of the LED of side lamp plate 80 and the LED on the ceiling light plate 40 when being 82 ° to this angle.As seen from the figure, using identical lamp socket, and under the corresponding LED number on side lamp plate and the ceiling light plate and all identical situation of arranging, the utility model can be when reducing a side lamp plate and the LED on it, territory, blind area P1, the P2 of prior art will extend to the position at distance ceiling light plate 30mm, and territory, blind area P10, the P20 of present embodiment only extend to the position apart from ceiling light plate 12mm, and its lighting blind zone territory is much smaller.Adjust the angle of side lamp plate 80 and ceiling light version 80, also can further reduce the scope in territory, blind area.

In conjunction with the accompanying drawings embodiment of the present utility model is described above; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away under the scope situation that the utility model aim and claim protect, also can make a lot of forms, these all belong within the protection of the present utility model.

Claims

1. LED lamp, comprise Lamp cup (10), be contained in described Lamp cup (10) bottom lamp socket (70), be positioned at the lamp plate on described Lamp cup (10) top, LED (90) all is installed on the described lamp plate, it is characterized in that, described lamp plate comprises the side lamp plate (80) and a ceiling light plate (40) of three isosceles trapezoids, the end to end successively triangular cone table that surrounds in the trapezoidal waist limit of described three blocks of side lamp plates (80), described ceiling light plate (40) covers the top of described triangular cone table, and the bottom of described triangular cone table is installed to described Lamp cup (10) upper face and fixing.

2. LED lamp according to claim 1 is characterized in that, the equicrural ladder plate of described three blocks of side lamp plates (80) for equating, and its trapezoidal upward base and bottom are respectively equipped with the contact pin of projection.

3. LED lamp according to claim 2, it is characterized in that, described ceiling light plate (40) is provided with corresponding three jacks (41) in three contact pin form fit, position of going up the base with described side lamp plate (80), and described Lamp cup (10) upper face is provided with the spliced eye (11) corresponding with three contact pin form fit, the position of described side lamp plate (80) bottom.

4. LED lamp according to claim 3 is characterized in that, the contact pin of described side lamp plate (80) cooperates with jack (41) and spliced eye (11) respectively, and side lamp plate (80) is connected and fixed with ceiling light plate (40) and Lamp cup (10) respectively.

5. LED lamp according to claim 1 is characterized in that, the angle between described side lamp plate (80) and the ceiling light plate (40) is 80～105 °.

6. LED lamp according to claim 5 is characterized in that, the angle between described side lamp plate (80) and the ceiling light plate (40) is 90～100 °.

7. LED lamp according to claim 1 is characterized in that, described LED lamp also comprises the pillar (20) that extends to described ceiling light plate (40) from described Lamp cup (10) bottom.

8. LED lamp according to claim 7 is characterized in that, also is provided with the floor of heat radiation on the described pillar (20), and the edge of described floor is near the inner surface of described side lamp plate (80).

9. LED lamp according to claim 1 is characterized in that, described Lamp cup (10) side is provided with the fin of convex-concave, and offers on the described Lamp cup (10) and be communicated with that it is inner with outside to discharge orifice.