CN201159402Y

CN201159402Y - LED lamp

Info

Publication number: CN201159402Y
Application number: CNU2008200022960U
Authority: CN
Inventors: 魏文珍
Original assignee: NENGTI PRECISION INDUSTRY Co Ltd
Current assignee: NENGTI PRECISION INDUSTRY Co Ltd
Priority date: 2008-02-20
Filing date: 2008-02-20
Publication date: 2008-12-03
Anticipated expiration: 2018-02-20

Abstract

The utility model relates to a light emitting diode light fitting, which comprises a radiator, a headstock, a luminescence module, a fixed seat and a lens, wherein the headstock and the fixed seat are respectively arranged on the two opposite sides of the radiator, the luminescence module is combined on the radiator and is equipped with a light emitting diode unit, and the lens is arranged on the upper portion of the light emitting diode unit and is combined in the fixed seat. The radiator comprises a base plate element and a plurality of heat dissipation fins, a plurality of extension arms are arranged on the base plate element, a slot is arranged between two adjacent extension arms, the heat dissipation fins are inserted in the corresponding slots, and one side wall surface of the two opposite side wall surfaces of each extension arm is closely reached on one surface of the two opposite surfaces which are formed into the heat dissipation fin. Therefore, the utility model makes the radiator without a welding mode, thereby being capable of saving the making cost, and is capable of effectively emitting the head of the light emitting diode unit.

Description

Led lamp

Technical field

The utility model relates to a kind of led lamp, the particularly a kind of MR-16 of meeting specification and the led lamp that the heat that light emitting diode sent effectively can be distributed.

Background technology

Along with the progress of illumination science and technology, the technology that light emitting diode is applied to throw light on is ripe, because its volume is little, power consumption is low and the life-span is long, therefore generally uses in the application of traffic sign, flashlight or light fixture.

Known led lamp generally all can be provided with radiator for the heat of getting rid of light emitting diode and being produced when luminous, usually this radiator is to be combined with a plurality of radiating fins by scolder and with welding manner, these radiating fins are to make with thermal conductive metallic material spare, aluminum metal part particularly, because it has the light and preferable characteristic of radiating efficiency of weight, therefore in the industry cycle uses widely.

But the above-mentioned radiating fin that is fabricated from aluminum is when welding, must be earlier after electroplating one deck chemical nickel on the aluminum radiating fin, just can weld, thus, promptly can increase the purchase cost of chemical nickel, and then the cost rising of order manufacturing radiator, and making fabrication schedule complicated, man-hours requirement is also longer simultaneously.

In addition, because radiating fin is to weld by scolder, and the coefficient of heat conduction of scolder is different with radiating fin, thereby makes when thermal source conducts to radiating fin that scolder will cause heat conducting loss, makes thermal source conduct to the deleterious of radiating fin heat radiation.

Therefore, the present invention proposes a kind of reasonable in design and effectively improve the led lamp of the problems referred to above.

Summary of the invention

In view of the above problems, main purpose of the present utility model is to provide a kind of and need not to use welding manner and can save manufacturing cost, and can effectively distribute the led lamp of the heat of light emitting diode.

To achieve the above object, the utility model provides a kind of led lamp, comprising:

One radiator, this radiator comprises: at least one substrate spare, described substrate spare comprise a base portion and a plurality of adjutages that extend from this base portion, each adjutage and adjacent with this adjutage have slot between two adjutages in addition; And a plurality of radiating fins, described radiating fin is inserted in the corresponding slot of this substrate spare, this substrate spare forms a surface in relative two surfaces that a tight butt of side wall surface in relative two side wall surfaces of each adjutage forms each radiating fin, and the top ends of each radiating fin and bottom stretch out the end face and the bottom surface of this substrate spare respectively, and the end face of described radiating fin and this substrate spare encloses and forms an accommodation space;

One headstock, it fixes the bottom that radiating fin is stated in the residence;

One light emitting module, this light emitting module comprises: a heat-conducting plate, this heat-conducting plate is arranged on the substrate spare of this radiator; At least one light emitting diode, described light emitting diode are arranged on this heat-conducting plate; One circuit board, this circuit board is electrically connected on this light emitting diode; And two pins, described pin is electrically connected on this circuit board, and passes outside this headstock;

One holder, it is contained in this accommodation space with respect to this headstock, and described radiating fin is fastened in this holder; And

One lens, it is arranged at the top of this light emitting diode accordingly, and is incorporated in this holder.

Preferably, each radiating fin of this radiator and this substrate spare be with the riveted technology by oppressing this substrate spare each adjutage and the surface of the corresponding described radiating fin of its tight butt is combined.

Preferably, this riveted technology is to make described adjutage plastic deformation by end face and bottom surface that a plurality of blades are oppressed the corresponding described adjutage of this substrate spare respectively in the mode of two-way compressing, thereby makes the surface of two corresponding described radiating fins of the tight butt of side wall surface of each described adjutage.

Preferably, the bottom of described radiating fin extends to form an inserting part respectively, and the periphery of this headstock is provided with a plurality of slots, and described inserting part is plugged at described slot.

Preferably, this substrate spare is equipped with two through holes, and this heat-conducting plate is electrically connected with two conductive base pins, and this circuit board is provided with two clamping connection spares, and described two conductive base pins pass two through holes of this substrate spare and are incorporated into described two clamping connection spares.

Preferably, this headstock is a hollow housing, and this circuit board is placed in the inside of this headstock.

Preferably, this holder is a hollow housing, and its inwall convexes with two abutment arms near the place, bottom, and described two abutment arms are connected to the end face of this heat-conducting plate.

Preferably, the peripheral surface of this holder convexes with clamping part, and described radiating fin is concaved with breach near base portion one side of this substrate spare, and this clamping part snaps in this breach, so that described radiating fin is fastened in this holder.

Preferably, this led lamp also comprises a protection ring, and the bottom of this protection ring is concaved with a plurality of grooves, and the top ends of described radiating fin is plugged at corresponding described groove respectively.

Preferably, the top ends of this radiating fin is concaved with a groove, and this trench fill has colloid, and this colloid is attached to this protection ring on the top ends of described radiating fin.

The utlity model has following beneficial effect: the utility model plugs the heat radiation plate by the groove of substrate, and make two side wall surfaces of groove directly fix the heat radiation plate with the riveted technology, therefore compare with known mode with the welding fixed radiator fin, the utility model needn't be electroplated chemical nickel earlier on radiating fin, and need not to use scolder, therefore, not only can reduce manufacturing cost, and can shorten man-hour, avoid the situation of heat conduction loss simultaneously.

In order further to understand feature of the present utility model and technology contents, see also following about detailed description of the present utility model and accompanying drawing, yet appended accompanying drawing only provide with reference to the usefulness of explanation, be not to be used for the utility model is limited.

Description of drawings

Fig. 1 is the three-dimensional exploded view of the utility model led lamp.

Fig. 2 is the three-dimensional exploded view of another angle of the utility model led lamp.

Fig. 3 is the three-dimensional combination figure of the utility model led lamp.

Fig. 4 is the three-dimensional combination figure of another angle of the utility model led lamp.

Fig. 5 is the cutaway view of the utility model led lamp.

Fig. 6 is the three-dimensional exploded view of the radiator of the utility model led lamp.

To be the utility model led lamp make schematic diagram under the enforcement state of its plastic deformation at the adjutage of blade desire compressing substrate spare to Fig. 7.

Wherein, description of reference numerals is as follows:

10 radiators, 11 substrate spares, 111 base portions, 1111 end faces

1112 bottom surfaces, 1113 sidewalls, 1114 through holes, 112 adjutages

1121 side wall surfaces, 113 slots, 12 radiating fins, 121 top ends

122 bottoms, 123 surperficial 124 inserting parts, 125 breach

21 perforation of 126 grooves, 13 accommodation spaces, 20 headstocks

22 slots, 30 light emitting modules, 31 heat-conducting plates, 32 conductive base pins

33 light emitting diodes, 34 circuit boards, 35 pins

36 clamping connection spares, 40 holders, 41 abutment arms, 42 clamping parts

50 lens, 60 protection rings, 61 grooves, 100 blades

The specific embodiment

See also Fig. 1 to shown in Figure 5, led lamp of the present utility model comprises: a radiator 10, a headstock 20, a light emitting module 30, a holder 40, lens 50 and a protection ring 60.

Please cooperate consult shown in Figure 6, this radiator 10 comprises a substrate spare 11 and a plurality of radiating fin 12, wherein this substrate spare 11 comprises a base portion 111 and a plurality of adjutage 112, and this base portion 111 can be a circular plate body or a polygon plate body, is example with circular plate body in accompanying drawing of the present utility model.This base portion 111 has end face 1111, bottom surface 1112 (as shown in Figure 2), sidewall 1113 and runs through two through holes 1114 of this end face 1111, bottom surface 1112.

Stretch and moulding from the sidewall 1113 of base portion 111 each adjutage 112 compartment of terrain, and have slot 113 between in addition two adjutages 112 of being adjacent of each adjutage 112.

Each radiating fin 12 can be a polygon plate body or a circular plate body (figure slightly), and each radiating fin 12 all has relative top ends 121 and bottom 122, and has two relative surfaces 123.The bottom 122 of these radiating fins 12 is down oblique respectively to extend to form an inserting part 124 (as shown in Figure 5), and each radiating fin 12 is concaved with a breach 125 in base portion 111 1 sides near this substrate spare 11 near upper end.

Each radiating fin 12 plugs in this substrate spare 11 corresponding slots 113, this substrate spare 11, form a side wall surface 1121 in two side wall surfaces 1121 of each adjutage 112 and closely be connected to a surface 123 in two surfaces 123 that form each radiating fin 12, directly fix each radiating fin 12 thus, and the top ends 121 of each radiating fin 12 and bottom 122 are stretched out the end face and the bottom surface of this substrate spare 11 respectively, make these radiating fin 12 circular array be arranged near the peripheral region of this substrate spare 11, these radiating fins 12 also enclose with the end face of this substrate spare 11 and form an accommodation space 13 (as shown in Figure 1).

In the present embodiment, can combine by the riveted technology between each radiating fin 12 and this substrate spare 11, so that each adjutage 112 by compressing this substrate spare 11, make the surface 123 of the corresponding radiating fin 12 of its tight butt.

Please cooperate consult shown in Figure 7, above-mentioned riveted technology is by the mode of a plurality of blades 100 with two-way compressing, oppress respectively in the end face and the bottom surface of this substrate spare 11 corresponding adjutages 112, make this adjutage 112 plastic deformations, so that two side wall surfaces 1121 of each adjutage 112 closely are connected to the surface 123 of corresponding radiating fin 12.

This headstock 20 is a hollow housing, the bottom surface of this headstock 20 is provided with two and bored a hole for 21 (as shown in Figure 2), and the periphery of this headstock 20 is provided with a plurality of slots 22 (as shown in Figure 1), the inserting part 124 of the bottom 122 of these radiating fins 12 is plugged at these slots 22 (as shown in Figure 5), makes this headstock 20 fix the bottom 122 of these radiating fins 12.

This light emitting module 30 comprises a heat-conducting plate 31, at least one light emitting diode 33, a circuit board 34 and two pins 35, and wherein this heat-conducting plate 31 is attached at the end face of the substrate spare 11 of this radiator 10.Can be coated with heat-conducting medium between the end face of this heat-conducting plate 31 and this substrate spare 11, to promote heat conducting effect between the two such as thermal grease etc.This heat-conducting plate 31 is electrically connected with two conductive base pins 32 (as shown in Figure 1), and these two conductive base pins 32 are corresponding with the through hole 1114 of this substrate spare 11.

This light emitting diode 33 is arranged on this heat-conducting plate 31, and the heat that utilizes this heat-conducting plate 31 that this light emitting diode 33 is produced conducts to this substrate spare 11 and these radiating fins 12, and produces the effect of cooling by the convection current of air between these radiating fins 12.Between this light emitting diode 33 and this heat-conducting plate 31, can be filled with colloid (as epoxy resin), produce short circuit to avoid this light emitting diode 33.

This circuit board 34 has electronic circuit so that carry out the conversion of voltage, this circuit board 34 is provided with two clamping connection spares 36 (as shown in Figure 1), two through holes 1114 that two conductive base pins 32 of this heat-conducting plate 31 pass this substrate spare 11 are incorporated into this two clamping connection spares 36 (as shown in Figure 5), so that this circuit board 34 can be realized being electrically connected with the light emitting diode 33 on this heat-conducting plate 31.

In the present embodiment, this circuit board 34 is placed in the inside of this headstock 20, but not as limit, this circuit board 34 also can be arranged in the accommodation space 13 of this radiator 10, and otherwise is electrically connected with this light emitting diode 33.In addition, can further be filled with colloid between this circuit board 34 and this headstock 20, to protect this circuit board 34 and to promote the effect of its waterproof.

These two pins 35 are electrically connected on this circuit board 34, and pass two of these headstock 20 bottom surfaces perforation 21 and stretch out outside this headstock 20.This circuit board 34 is equipped with to meet the specification of MR-16 with these two pins 35.These two pins 35 are in order to being connected with external power receptacle, and via this circuit board 34 this external power source are carried out voltage transitions, so that this light emitting diode 33 luminous required voltages to be provided.

This holder 40 is a hollow barrel-type housing, its inwall convexes with two abutment arms 41 (as shown in Figure 2) near the place, bottom, these two abutment arms 41 are connected to the end face of this heat-conducting plate 31, thereby make this heat-conducting plate 31 be pressed down the end face that can closely be contacted with this substrate spare 11, have good thermal conduction effect thus.

This holder 40 is contained in this accommodation space 13 with respect to this headstock 20, and the peripheral surface of this holder 40 convexes with a plurality of clamping parts 42, clamping part 42 forms the inclined-plane to its bottom taper in width and in both sides from its top, the clamping part 42 of this holder 40 snaps in the breach 125 of radiating fin 12, so that radiating fin 12 is fastened in this holder 40.

When said fixing seat 40 is packed the accommodation space 13 of this radiator 10 into, the top ends 121 of the radiating fin 12 corresponding with it can be by this clamping part 42 two skew back faces guiding and produce strain earlier, after treating that clamping part 42 snaps in the breach 125 of radiating fin 12, promptly can automatically return to original position.

In addition, being filled with colloid (as epoxy resin) between this holder 40 and these radiating fins 12 equally, has water-proof function simultaneously to strengthen the bond strength between this holder 40 and these radiating fins 12.

This lens 50 are made with transparent material spare, and the external diameter convergent from its top to its bottom, and these lens 50 are incorporated in this holder 40, thereby are arranged at the top of this light emitting diode 33 accordingly.These lens 50 can make the light of this light emitting diode 33 more effectively send, and expose in a big way.

This protection ring 60 is a hollow ring body, and the bottom of this protection ring 60 is concaved with a plurality of grooves 61, and the top ends 121 of these radiating fins 12 is plugged at these grooves 61 respectively accordingly, so that this protection ring 60 is sheathed on the top of these radiating fins 12.

Each radiating fin 12 also can further be arranged with a groove 126 (as shown in Figure 5) in its top ends 121; and in this groove 126, can fill colloid; utilize this colloid this protection ring 60 to be attached on the top ends 121 of these radiating fins 12; to strengthen the bond strength of this protection ring 60 and these radiating fins 12, make these radiating fins 12 be protected simultaneously and can not be shifted.When installing or change the utility model led lamp, the user can directly be gripped on this protection ring 60 places, thus the action that can comparatively make things convenient for and install effortlessly or change.

To sum up, the utility model led lamp provides radiating fin 12 to plug with the slot 113 of 112 of each adjutages of this substrate spare 11, and closely fix radiating fin 12 by two side wall surfaces 1121 of each adjutage 112 it can firmly be fixed, compare with known mode with the welding fixed radiator fin, the utility model need not electroplating chemical nickel, therefore can reduce manufacturing cost, shorten man-hour, and simplify fabrication schedule.

In addition, the utility model is exempted the use scolder, so have the situation of avoiding heat conduction loss, simultaneously, exempts the use of scolder, and (scolder contains lead usually to have more environmental protection function; Lead-free solder then has the problem that raises the cost), and then can effectively promote radiating efficiency.

But the above only is a preferable possible embodiments of the present utility model, is not to limit to scope of the present utility model with this, so the equivalent structure that all utilization the utility model specifications and accompanying drawing content are done changes, all in like manner is contained in the scope of the present utility model.

Claims

1, a kind of led lamp is characterized in that, comprising:

One radiator, this radiator comprises:

At least one substrate spare, described substrate spare comprise a base portion and a plurality of adjutages that extend from this base portion, each described adjutage and adjacent with this adjutage have slot between two described adjutages in addition; And

A plurality of radiating fins, described radiating fin is inserted in the corresponding slot of described substrate spare, described substrate spare forms a surface in relative two surfaces that a tight butt of side wall surface in relative two side wall surfaces of each adjutage forms each described radiating fin, and the top ends of each described radiating fin and bottom stretch out the end face and the bottom surface of this substrate spare respectively, and the end face of described radiating fin and described substrate spare encloses and forms an accommodation space;

One headstock, this headstock fixes the bottom that radiating fin is stated in the residence;

One light emitting module, this light emitting module comprises:

One heat-conducting plate, this heat-conducting plate is arranged on the substrate spare of this radiator;

At least one light emitting diode, described light emitting diode are arranged on this heat-conducting plate;

One circuit board, this circuit board is electrically connected on described light emitting diode; And

Two pins, described pin is electrically connected on this circuit board, and passes outside this headstock;

One holder, this holder is contained in this accommodation space with respect to this headstock, and described radiating fin is fastened in this holder; And

One lens, these lens are arranged at the top of this light emitting diode accordingly, and are incorporated in this holder.

2, led lamp as claimed in claim 1, it is characterized in that, each radiating fin and this substrate spare of this radiator be with the riveted technology by oppressing this substrate spare each adjutage and the surface of the corresponding described radiating fin of its tight butt is combined.

3, led lamp as claimed in claim 2, it is characterized in that, this riveted technology is to make described adjutage plastic deformation by end face and bottom surface that a plurality of blades are oppressed the corresponding described adjutage of this substrate spare respectively in the mode of two-way compressing, thereby makes the surface of two corresponding described radiating fins of the tight butt of side wall surface of each described adjutage.

4, led lamp as claimed in claim 1 is characterized in that, the bottom of described radiating fin extends to form an inserting part respectively, and the periphery of this headstock is provided with a plurality of slots, and described inserting part is plugged at described slot.

5, led lamp as claimed in claim 1, it is characterized in that, this substrate spare is equipped with two through holes, this heat-conducting plate is electrically connected with two conductive base pins, this circuit board is provided with two clamping connection spares, and described two conductive base pins pass two through holes of this substrate spare and are incorporated into described two clamping connection spares.

6, led lamp as claimed in claim 1 is characterized in that, this headstock is a hollow housing, and this circuit board is placed in the inside of this headstock.

7, led lamp as claimed in claim 1 is characterized in that, this holder is a hollow housing, and its inwall convexes with two abutment arms near the place, bottom, and described two abutment arms are connected to the end face of this heat-conducting plate.

8, led lamp as claimed in claim 1, it is characterized in that the peripheral surface of this holder convexes with clamping part, described radiating fin is concaved with breach near base portion one side of this substrate spare, this clamping part snaps in this breach, so that described radiating fin is fastened in this holder.

9, led lamp as claimed in claim 1 is characterized in that, this led lamp also comprises a protection ring, and the bottom of this protection ring is concaved with a plurality of grooves, and the top ends of described radiating fin is plugged at corresponding described groove respectively.

10, led lamp as claimed in claim 9 is characterized in that, the top ends of this radiating fin is concaved with a groove, and this trench fill has colloid, and this colloid is attached to this protection ring on the top ends of described radiating fin.