CN202469542U

CN202469542U - Led lamp

Info

Publication number: CN202469542U
Application number: CN201120458550XU
Authority: CN
Inventors: 沈文雄
Original assignee: PINYI LIGHTING Pte Ltd
Current assignee: PINYI LIGHTING Pte Ltd
Priority date: 2011-11-18
Filing date: 2011-11-18
Publication date: 2012-10-03
Anticipated expiration: 2021-11-18

Abstract

The utility model provides an LED lamp, comprising a lamp holder assembly, a radiator buckled with the lamp holder assembly, LED assemblies assembled in the radiator, and a side connection terminal unit. The radiator is approximately in the shape of a hollow cylinder, and one end of the radiator is provided with a plurality of fins and the other end is provided with a first pair of grooves. The side connection terminal unit comprises a circular ring, a first pair of clamping parts protruding from the outer surface of the circular ring, and a first pair of side connection terminals used for providing input power supply for at least one LED. The LED lamp is advantageous in that through making different included angles between the side connection terminals to be corresponding to the input power supply in different types, users can be easily guided to configure the input power supply to ensure safety; as the LED lamp is in the shape of a regular cylinder, the installation with regular tools can be facilitated; once the LED is damaged, the LED lamp can be replaced from other components easily, and the replacing of other components is not required, and thereby cost is reduced.

Description

The LED lamp

Technical field

The utility model relates to light emitting diode, and (light emitting diodes, LED) lamp are particularly useful for but are not limited to power consumption being at least one watt LED lamp.

Background technology

Below be for the utility model is more readily understood about the discussion of background technology.Yet, need be appreciated that this discussion is not affirmation or admits that any content that relates to was published, quilt is known or general knowledge before the priority date of present patent application in any jurisdiction.

At present make its installation code that meets conventional lights through the LED lamp is transformed usually, for example MR-16, E27 and/or GU-10 are because these installation codes are normally inappropriate for the electric polar requirement of LED.A remodeling method that makes the LED lamp meet the conventional mounting standard is integrated oneself jig Design, lens combination, drive circuit and a transforming circuit etc. in LED lamp system design.But because this LED lamp is integrated design, when in the said elements any one broke down, whole lamp all will be changed.This has caused unnecessary waste, and has increased the overall maintenance cost of this LED lamp.

Because compare the heatproof characteristic of LED lamp with conventional lights lower, in installation, need usually extra fin or other heat abstractors are attached to respectively on the LED lamp, for the heat radiation of LED lamp, guarantee its life-span.The applicant notices that the electrically conductive part of conventional mounting standard normally is positioned at an end of the LED lamp of LED lamp holder reverse side.This mounting means means that heat abstractor can only be contained in other positions of LED lamp.Yet when heat abstractor was contained in other positions of LED lamp, other elements that need use during heat abstractor is mounted probably stopped.Thisly stop the restriction that can cause air to flow, finally limited the heat dispersion of heat abstractor.In addition, at other positions of LED lamp heat abstractor is set and causes the global shape of lamp irregular, thereby in installation, need corresponding bracket and erecting tools to adapt to this irregular shape.

A problem that also possibly exist is that the user can not discern the input power supply that the different LED lamp needs usually.Usually, they have to rely on and read electrical specification and guarantee that the LED lamp of particular type and correct input power supply mate.User's carelessness possibly jeopardize user's security and cause the damage of LED lamp.

Therefore a purpose of the utility model be overcome or at least part improve one or more in the above-mentioned defective.

Summary of the invention

Only if opposite explanation is arranged in addition, the term that uses in this document " comprises ", and " by ... form " etc. similar term should be interpreted as and comprise and all do not describe.

According to the aspect of the utility model, a kind of light emitting diode (LED) lamp is provided, the radiator that this lamp comprises lamp adapter assembly, fasten with lamp adapter assembly and be assembled in LED assembly and the side splicing ear unit in the radiator.Said radiator is the cylindrical of hollow substantially, and the one of which end is provided with a plurality of fins, and it is not provided with on the end of fin and has first pair of groove.Said side splicing ear unit comprises an annulus, is used to the side splicing ear that at least one LED provides the input power supply from the first pair of clamping part of the outer surface of said annulus protrusion and first pair.Said annulus is positioned at the internal diameter that radiator and its external diameter equal not to be provided with on the radiator end of fin basically, and the shape and size of said first pair of clamping part and said first pair of groove are complementary and are assembled in first pair of groove.The said first offside splicing ear passes said annulus and clamping part and outside annulus inboard and clamping part, extends, and electrically connects with said LED assembly.Shape in an angle between the said first offside splicing ear.Angle between the said first offside splicing ear is that the cross-section center with said lamp is the benchmark definition.

Preferably, when input power supply when being constant current source, the angle between the said first offside splicing ear is 150 degree.

Preferably, when the input power supply was the constant DC potential source, the angle between the said first offside splicing ear was 165 degree.

Preferably, when the input power supply was AC power, the angle between the said first offside splicing ear was 180 degree.

Preferably, when said at least one LED was dual-colored LED, said lamp also comprised the second offside splicing ear, and the outer surface of said annulus also is protruding with second pair of clamping part, and the said second offside splicing ear extends from second pair of clamping part.

Preferably; When said at least one LED is RGB LED; Said lamp also comprises the second offside splicing ear and the 3rd offside splicing ear, and the outer surface of said annulus also is protruding with the 3rd pair of clamping part, and said the 3rd offside splicing ear extends from the 3rd pair of clamping part.。

Preferably, said side splicing ear is so arranged and is made each side splicing ear have different polarities with respect to its adjacent side splicing ear.

Preferably, the angle between each side splicing ear and other side splicing ears is at least 30 degree.

Preferably, described LED lamp also comprises a bracket that is used for partly accommodating the LED lamp.This bracket comprises: one is used for the base portion with at least one offside splicing ear of the first angle fixed L ED lamp, and said angle is that the cross-section center with said lamp is the benchmark definition; And one be used to accommodate at least one pair of electric lead top ends.When said base portion and top ends coupled together, each in said at least one offside splicing ear all contacted with an electric lead and power supply is provided for the LED lamp.

Preferably, said at least one pair of electric lead so arrange make when its with corresponding side splicing ear connection after, each electric lead all provides the electric energy of relative its adjacent electric lead opposed polarity.

The LED lamp of the utility model disposes columned hollow radiator, through the side splicing ear unit that is arranged in the radiator side splicing ear is stretched out from radiator, for the LED assembly provides the electric power input channel.Through the different angles between the side splicing ear are corresponding with dissimilar input power supplys, can easily guide the user to dispose the input power supply, the user is not made mistakes when the assembled LED lamp, thereby guarantee security.In addition, the LED lamp is the cylinder design of rule, is convenient to utilize conventional instrument to install.In case the LED lamp damages, and can easily the LED lamp be separated from other elements and change, and not need to change simultaneously other elements, thereby reduce cost.

Description of drawings

Fig. 1 a is the LED lamp part exploded view of an embodiment.

Fig. 1 b is the vertical view of side splicing ear unit among another embodiment.

Fig. 2 is the schematic top plan view of LED lamp among Fig. 1.

Fig. 3 a is the side view of each several part of the LED lamp of an embodiment.

Fig. 3 b is the stereogram of the LED lamp that assembles of an embodiment.

Fig. 4 a is the stereogram of the bracket of a LED lamp that is used for fixing the utility model one embodiment, and Fig. 4 b is the stereogram of a kind of alternative bracket of bracket among Fig. 4 a.Fig. 4 c is the close-up illustration of side profile of the opening of of a bracket side splicing ear being used to accommodate the LED lamp.

Fig. 5 a and Fig. 5 b are the stereogram that the LED lamp of an embodiment is connected to bracket shown in Fig. 4 a.

Fig. 6 a to Fig. 6 c is the vertical view of LED lamp that has the different distributions of two side splicing ears among the different embodiment.

Fig. 7 a and Fig. 7 b are for being used for fixing the vertical view of LED lamp dual-colored LED, that have four side splicing ears among other embodiment.

Fig. 8 a and Fig. 8 b are for being used for fixing the vertical view of LED lamp RGB LED, that have six side splicing ears among other embodiment.

The specific embodiment

Further specifically describe below in conjunction with accompanying drawing and specific embodiment LED lamp the utility model.

An embodiment according to the utility model provides a kind of LED lamp 10.Shown in Fig. 1 a, the LED lamp 10 of present embodiment comprises a lamp adapter assembly 12, two side splicing ear unit 14, a LED assembly 16 and a radiator 18.

Lamp adapter assembly 12 comprises lamp holder holder 20 and reflector 22.Lamp holder holder 20 is a ring cover, and this ring cover comprises first ring, 24 and second ring 26.The 26 one-body molded formation lamp holder holders 20 of first ring, 24 and second ring.First ring 24 has the identical center of circle and outside diameter d with second ring 26 _Outer(see Fig. 3 a).First ring 24 is different with the internal diameter of second ring 26, shown in Fig. 3 a, and the inner diameter d of first ring 24 _{Inner, first}Inner diameter d less than second ring 26 _{Inner, second}

Reflector 22 is the frustum of a cone.The size and dimension of the bottom 28 of reflector 22 can be loaded in the lamp holder holder 20 it.Relative entire emission device 22, the diameter of its bottom 28 is maximum.But the size and dimension of the part with minimum diameter of reflector 22 makes its receiving surface mount LED 52.The diameter of bottom 28 is slightly less than or equals the inner diameter d of second ring 26 _{Inner, second}, but encircle 24 inner diameter d greater than first _{Inner, first}

Each side splicing ear unit 14 includes rectangular body 30, a side splicing ear 32 and a conductive plate 34 of a bending.Crooked rectangular body 30 from its dual-side respectively one extend an Extendible flake 36, and Extendible flake 36 is to extend from the position near the inwall of this rectangular body 30.The thickness of each Extendible flake 36 is all less than the thickness of the rectangular body 30 of bending.Wherein, two sides of this crooked rectangular body 30 are substantially parallel, and perpendicular to the lower end 38 of the rectangular body 30 of bending.Side splicing ear 32 is arranged on the position of the lower end 38 that is close to crooked rectangular body 30.Each side splicing ear 32 is divided into two parts, and its first 40 extends substantially vertically from the outside convex surface 33 of the rectangular body 30 of bending, and its second portion 42 extends substantially vertically from the inboard concave surface 35 of the rectangular body 30 of bending.The first 42 of side splicing ear 32 is longer than second portion 42.Side splicing ear 32 is by conductive material, and for example copper becomes.

Conductive plate 34 postpones out from the second portion 42 of side splicing ear 32.

LED assembly 16 comprises PCB 50 and is fixed on the surface mount LED 52 on the PCB 50.Typically, surface mount LED 52 mounts LED for high-power surface commonly used on the market at present.PCB 50 is used to connect side splicing ear 32 and surface mount LED 52.PCB 50 also possibly be used for the input power supply of surface mount LED 52 is carried out rectification.This rectification makes that the brightness of surface mount LED 52 can be controlled.Know for a person skilled in the art because the electric current of 50 pairs of inputs of PCB surface mount LED 52 carries out the method for rectification, repeat no more at this.Concrete, surface mount LED 52 is fixed on the center of the upper surface of PCB 50.The place of keeping to the side of PCB 50 is provided with the pad 44 of two arches symmetrically.Pad 44 electrically connects with surface mount LED 52.When assembling, the conductive plate 34 of side splicing ear unit 14 is all by the adjustment direction, so that its largest face contacts with the corresponding pad 44 of printed circuit board (PCB) (PCB) 50.Also have two holes 70 that are used for fixing on the PCB 50.

Radiator 18 comprises a plurality of fins 60 and two grooves 62.The design of the shape of fin 60 and size makes the surface area of radiator 18 increase with heat radiation.The shape of each groove 62 makes it can accommodate a side splicing ear unit 14 with the design of size.In the present embodiment, the monnolithic case of radiator 18 is cylindrical, and groove 62 is positioned at an end that does not have fin of radiator 18.Radiator 18 inner hollow to a projecting inward fixed station (not shown), are used for fixing PCB 50 near the position of groove 62.

From the angle of assembled LED lamp 10 present embodiment is described below.

At first, with two hold-down screw (not shown) PCB 50 and surface mount LED 52 are fixed on the fixed station in the radiator 18.The size in hole 70 and the design of shape make it can accommodate above-mentioned two hold-down screws.Through guaranteeing the thermo-contact between PCB 50 and the radiator 18 at interpolation heat radiation compound well known to those skilled in the art between PCB 50 and the radiator 18.The heat radiation compound is that radiator 18 provides thermo-contact to come 50 heat radiations for PCB.

Side splicing ear unit 14 is fixed in the groove 62 of radiator 18.When side splicing ear unit 14 was fixed in the groove 62, each side splicing ear unit 14 was placed in the following manner, so that:

(i) two Extendible flakes 36 are close on the inner curve of radiator 18;

(ii) the outside convex surface 33 of rectangular body 30 flushes with the outer N-Side surf of radiator 18; And

(iii) side splicing ear unit 14 does not have an end of fin to flush with lower end 38 opposing ends 46 with radiator 18.

Afterwards, the conductive plate 34 with side splicing ear unit 14 is welded on the PCB 50.

The minimum diameter end of reflector 22 is placed on the surface mount LED 52.Then, lamp holder holder 20 is placed on the reflector 22, bottom 28 is contacted with first ring 24.The stereogram of the LED lamp 10 that assembles is shown in Fig. 3 b.

At last, utilization well known to a person skilled in the art that method is packaged together each element of LED lamp 10.

In an improved embodiment, shown in Fig. 1 b, a kind of alternative side splicing ear unit 14 ' is provided.The side splicing ear unit 14 ' essence that should substitute is that the Extendible flake 36 with two side splicing ear unit 14 in the foregoing description continues extensions and finally connects into an annulus 30 '.The external diameter of this annulus 30 ' equals the internal diameter that radiator 18 does not have an end of fin basically.And the part near its outside convex surface 33 of former rectangular body 30 has become from two clamping parts of annulus 30 ' outer surface protrusion, is labeled as 36 ' here.The external diameter of clamping part 36 ' equals the external diameter that radiator 18 does not have an end of fin basically.Side splicing ear 32 ' two parts extend substantially vertically from the surface of annulus 30 ' and clamping part 36 ' respectively, and be straight line.Conductive plate 34 ' postpones out from the second portion 42 ' of side splicing ear 32 '.

During assembling, with two hold-down screws PCB 50 and surface mount LED 52 are fixed on the fixed station in the radiator 18 earlier.Then side splicing ear unit 14 ' is inserted radiator 18, clamping part 36 ' is fixed in the groove 62 of radiator 18.At last, the conductive plate 34 with side splicing ear unit 14 is welded on the PCB 50.This improved structure has reduced the complexity that side splicing ear unit is made and assembled, and has improved packaging efficiency, and has been difficult for losing and damaging.

As shown in Figure 2, when when look down the top of the LED lamp 10 that assembles,, two side splicing ears 32 make that when forming upright " V ", the first side splicing ear 32a is a negative pole when being arranged in certain angle, the second side splicing ear 32b be a positive pole.

After the assembled, LED lamp 10 is fixed on the bracket as shown in Figure 4 80.Below describe the various piece of bracket 80 in detail.

Bracket 80 comprises bracket top board 82 and bracket pedestal 84.Bracket top board 82 is provided with two junction blocks 86.Each junction block 86 includes spring connector 90 and square 92.Be formed with the hole 94 that to accommodate lead 88 on the square 92.When spring connector 90 was pressed, the hole 94 on the square 92 did not get clogged, the exposed end of lead 88 (nonisulated) but in the patchhole 94.When spring connector 90 was released, hole 94 got clogged, and spring connector 90 is pressed on the exposed end of lead 88, and the exposed end of guaranteeing lead 88 contacts with square 92 and can not break away from square 92.

Bracket pedestal 84 is used to accommodate two side splicing ears 32.Bracket pedestal 84 comprises an interior annulus portion 96 and a concentric cylindrical ring portion 98.Be formed with two openings 100 in the interior annulus portion 96.Two openings 100 are respectively applied for accommodates two side splicing ears 32.The center of circle with interior annulus portion 96 is a benchmark below, describes the angle between two openings 100 in detail.The center of circle of wherein interior annulus portion 96 is equivalent to the center of circle of LED lamp 10.

One end 102 of each opening 100 extends a flap 104.The other end 108 of opening 100 and the size in the space 106 between the flap 104 make it can accommodate a side splicing ear 32.

Two connect shell fragment 110 and between two leads 88 and two side splicing ears 32, electric connection are provided.Each first end 112 that connects shell fragment 110 contacts with the exposed end of lead 88, and its second end 114 is used for contacting with side splicing ear 32.First end 112 that connects shell fragment 110 is connected to corresponding square 92 through the rivet (not shown).First end, 112 to the second ends 114 are short.

When side splicing ear 32 is pressed into end 108 and the space 106 between the flap 104 of opening 100, side splicing ear 32 be connected shell fragment 110 contacts.When side splicing ear 32 is pressed into space 106, connect opposite direction offside splicing ear 32 applied thrusts of shell fragment 110 from the direction of side splicing ear 32 entering.Through to the direction rotating LED lamp 10 away from terminal 108, side splicing ear 32 moves to terminal 102 from terminal 108 along the edge of flap 104, up to being parked in a connecting portion 107.At this moment, LED lamp 10 is fixedly connected on the bracket 80.Need be appreciated that, in the moving process of side splicing ear 32 and after resting on the connecting portion 107, connect shell fragment 110 and contact with side splicing ear 32 always.

According to the type of input power supply, the angle between two side splicing ears 32 is adjusted accordingly.The type of input power supply and corresponding angle to shown in Fig. 6 c, are carried out detailed description like Fig. 6 a below:

(a) when input power supply when being constant direct current (DC) current source, two side splicing ears 32, for example the angle between side splicing ear pin 1 and the pin 2 is 150 degree, shown in Fig. 6 a.

(b) when the input power supply is the constant DC potential source, two side splicing ears 32, for example the angle between side splicing ear pin 1 and the pin 2 is 165 degree, shown in Fig. 6 b.

(c) when the input power supply is interchange (AC) power supply, two side splicing ears 32, for example the angle between side splicing ear pin 1 and the pin 2 is 180 degree, shown in Fig. 6 c.

The embodiment of the utility model can be by further modification to adapt to dissimilar LED 52.

For example, shown in Fig. 7 a and Fig. 7 b, four side splicing ear unit 14 are used for a dual-colored LED provides power supply.Revise bracket 80 to mate additional side splicing ear 32, make bracket 80 comprise four openings 100 and four junction blocks 86.Revising radiator 18 makes it comprise four grooves 62.Describe angle, β, γ between four side splicing ears 32 below in detail:

(a) when input power supply when being constant direct current (DC) current source, the angle between side splicing ear pin 1 and the pin 2 is 150 degree; Angle β between side splicing ear pin 1 and side splicing ear pin 3 or the side splicing ear pin 4 is 90 degree; Angle γ between side splicing ear pin 3 and the pin 4 is 180 degree, shown in Fig. 7 a.

(b) when the input power supply is the constant DC potential source, the angle between side splicing ear pin 1 and the pin 2 is 165 degree; Angle β between side splicing ear pin 1 and side splicing ear pin 3 or the side splicing ear pin 4 is 90 degree; Angle γ between side splicing ear pin 3 and the pin 4 is 180 degree, shown in Fig. 7 b.

As another embodiment, six side splicing ear unit 14 are used for a RGB LED provides the input power supply, shown in Fig. 8 a and Fig. 8 b.Revise bracket 80 to mate additional side splicing ear 32, make bracket 80 comprise six openings 100 and six junction blocks 86.Revising radiator 18 makes it comprise six grooves 62.Describe angle, β, γ, η, ρ, q corresponding between six side splicing ears 32 below in detail:

(a) when input power supply when being constant direct current (DC) current source, the angle between side splicing ear pin 1 and the pin 2 is 150 degree; Angle β between side splicing ear pin 1 and side splicing ear pin 3 or the side splicing ear pin 4 is 90 degree; Angle γ between side splicing ear pin 3 and the pin 4 is 180 degree; Angle η between side splicing ear pin 1 or side splicing ear pin 3 and the side splicing ear pin 5 is 45 degree; Side splicing ear pin 4 and the angle ρ of side splicing ear pin 6 are 45 degree; Angle q between side splicing ear pin 5 and the side splicing ear pin6 is 180 degree, shown in Fig. 8 a.

(b) when the input power supply is the constant DC potential source, the angle between side splicing ear pin 1 and the pin 2 is 165 degree; Angle β between side splicing ear pin 1 and side splicing ear pin 3 or the side splicing ear pin 4 is 90 degree; Angle γ between side splicing ear pin 3 and the pin 4 is 180 degree; Angle η between side splicing ear pin 1 or side splicing ear pin 3 and the side splicing ear pin 5 is 45 degree; Side splicing ear pin 4 and the angle ρ of side splicing ear pin 6 are 45 degree; Angle q between side splicing ear pin 5 and the side splicing ear pin6 is 180 degree, shown in Fig. 8 b.

Except as otherwise noted, the angle of all definition (α, β, γ, η, ρ, q) is meant that the center with LED lamp 10 is the angle of benchmark, with reference to angle.

Above embodiment guarantees that the bracket of right type is used for respective counts destination splicing ear, and simultaneously, the discrimination factor of the different angles between the side splicing ear is corresponding with dissimilar input power supplys.Therefore, when satisfying the requiring of input power supply, the arrangement of side splicing ear can make the user when assembled LED lamp 10, not make mistakes, thereby guarantees security.In addition, the position of the side splicing ear 32 that extends from the side near the LED lamp 10 of lamp adapter assembly 12 makes that in installation radiator 18 can be directly mounted on the LED assembly 16, and does not block bracket 80.

Radiator 18 has approximate outside diameter d with LED lamp 10 _Outer, after having assembled, LED lamp 10 is the cylinder design of rule, therefore is convenient to utilize conventional instrument to install.

In addition, the LED lamp 10 of the utility model is independent of other elements, for example transforming circuit.In case LED lamp 10 damages, and just can LED lamp 10 be separated from other elements and change, and not need to change simultaneously other elements, thereby reduce cost.

Fig. 4 b shows an alternative bracket 80, and wherein same number designation is with reference to same part.The bracket 80 that should substitute provides a different approach axis for LED lamp 10 in assembling.Two junction blocks 86 that should substitute bracket 80 are arranged on the bracket top board 82, but are on the other end that is positioned at respect to the bracket 80 of previous embodiment.With the front describe similar, each junction block 86 all is used to accommodate lead 88.

Similar with the assembling process that the front is described, when side splicing ear 32 is pressed between terminal 108 and the flap 104, side splicing ear 32 be connected shell fragment 110 (not shown) and contact.Through to the direction rotating LED lamp 10 away from terminal 108, side splicing ear 32 moves to terminal 102 from terminal 108 along the edge of flap 104, up to being parked in a connecting portion 107.At this moment, LED lamp 10 is fixedly connected on the bracket 80.

It will be understood by a person skilled in the art that the utility model is not limited to the foregoing description.Special, replenishing and revising below under the situation of the scope that does not break away from the utility model, can making:

● can cover transparent cover of a circle on first ring 24, this transparent cover is the part as the water-proof function of LED lamp 10.

● those skilled in the art can be thinkable, and PCB 50 can be used for fixing a plurality of surface mount LED 52.On this basis, those skilled in the art also can be thinkable, and lamp holder holder 20 is interchangeable.Typically, can be sealed, threaded or clamp type.

● LED 52 can not be a surface-adhered type.Alternatively, LED 52 can be fixed on the LED holder, and the shape of this LED holder and size make it can accommodate one or more LED 52.

● those skilled in the art know, and for reaching different lighting demand and application, available condenser lens, diffuser or light bulb head diffuser wait to substitute lamp adapter assembly 12.

● lamp adapter assembly 12 can be one-body molded with side splicing ear element 14.Those skilled in the art know, and the fixture of any convention capable of using this moment for example cuts instrument or groove flange lamp adapter assembly 12 is fixed on the radiator 18.At this moment, no longer groove 62 need be set on the radiator.

It will be understood by a person skilled in the art that and---to be not to substitute or replacement---through combining the technical characterictic and the modification of above-mentioned discussion obtain other embodiment, all embodiment that obtain so are included in the utility model scope of disclosure.

Claims

1. LED lamp, the radiator that it comprises lamp adapter assembly, fasten with lamp adapter assembly and be assembled in LED assembly and the side splicing ear unit in the radiator; Said radiator is the cylindrical of hollow substantially, and the one of which end is provided with a plurality of fins, and it is not provided with on the end of fin and has first pair of groove; It is characterized in that: said side splicing ear unit comprises an annulus, is used to the side splicing ear that at least one LED provides the input power supply from the first pair of clamping part of the outer surface of said annulus protrusion and first pair; Said annulus is positioned at the internal diameter that radiator and its external diameter equal not to be provided with on the radiator end of fin basically, and the shape and size of said first pair of clamping part and said first pair of groove are complementary and are assembled in first pair of groove; The said first offside splicing ear passes said annulus and clamping part and outside annulus inboard and clamping part, extends, and electrically connects with said LED assembly; Shape in an angle between the said first offside splicing ear; Angle between the said first offside splicing ear is that the cross-section center with said lamp is the benchmark definition.

2. LED lamp according to claim 1 is characterized in that, when input power supply when being constant current source, the angle between the said first offside splicing ear is 150 degree.

3. LED lamp according to claim 1 is characterized in that, when the input power supply was the constant DC potential source, the angle between the said first offside splicing ear was 165 degree.

4. LED lamp according to claim 1 is characterized in that, when the input power supply was AC power, the angle between the said first offside splicing ear was 180 degree.

5. LED lamp according to claim 1; It is characterized in that when said at least one LED was dual-colored LED, said lamp also comprised the second offside splicing ear; The outer surface of said annulus also is protruding with second pair of clamping part, and the said second offside splicing ear extends from second pair of clamping part.

6. LED lamp according to claim 1; It is characterized in that; When said at least one LED is RGB LED; Said lamp also comprises the second offside splicing ear and the 3rd offside splicing ear, and the outer surface of said annulus also is protruding with the 3rd pair of clamping part, and said the 3rd offside splicing ear extends from the 3rd pair of clamping part.

7. according to each described LED lamp in the claim 1 to 6, it is characterized in that said side splicing ear is so arranged and made each side splicing ear have different polarities with respect to its adjacent side splicing ear.

8. LED lamp according to claim 7 is characterized in that, the angle between each side splicing ear and other side splicing ears is at least 30 degree.

9. LED lamp according to claim 7 is characterized in that, also comprises a bracket that is used for partly accommodating the LED lamp, and this bracket comprises:

One is used for the base portion with at least one offside splicing ear of the first angle fixed L ED lamp, and said angle is that the cross-section center with said lamp is the benchmark definition; And

One is used to accommodate the top ends of at least one pair of electric lead;

When said base portion and top ends coupled together, each in said at least one offside splicing ear all contacted with an electric lead and power supply is provided for the LED lamp.

10. LED lamp according to claim 9 is characterized in that, said at least one pair of electric lead so arrange make when its with corresponding side splicing ear connection after, each electric lead all provides the electric energy of relative its adjacent electric lead opposed polarity.