CN2921559Y

CN2921559Y - LED projection light source module

Info

Publication number: CN2921559Y
Application number: CNU2006200046627U
Authority: CN
Inventors: 简丞君
Original assignee: 简丞君
Current assignee: Fin-Core Corporation
Priority date: 2006-04-05
Filing date: 2006-04-05
Publication date: 2007-07-11
Anticipated expiration: 2016-04-05

Abstract

A LED projection light source module comprises a main body, a LED cell, a heat diffusion cell, a voltage conversion cell and a base, wherein, the main body is made of metal material (such as copper) of better heat conduction efficiency, and provides with an accommodation space to place the LED cell. The LED cell is electrically connected with the voltage conversion cell that is arranged inside of the base. The base can be combined with the main body. A conductive pin is arranged on the bottom face of the base to match with projection light seat, one end of the conductive pin is electrically connected with the voltage conversion cell, which is characterized in that the heat diffusion cell is arranged on the outer edge of the main body to conduct the heat source generated from the LED cell to the heat diffusion cell for rapid diffusion by the main body effectively, thereby reaching an efficiency of improving heat diffusion efficiency. The LED cell of higher wattage is applied to improve the lighting brightness effectively.

Description

LED projection source module

Technical field

The utility model relates to a kind of LED projection source module.

Background technology

In light fixture miscellaneous, projecting lamp has accounted for quite fixing ratio for a long time always, especially when various electronics Electricity-saving lamp bulbs replace the traditional fluorescent lamp pipe, projecting lamp is because its special lighting effect that can provide, and still can occupy the ground of a seat on light fixture market, no matter in the design of decorateing at home, and the design of various exhibition, or the decoration in dining room, inevitably all can utilize projecting lamp to come create atmosphere, highlight commodity or the decoration that will show.Because the market of projecting lamp is quite big, therefore market is already with its size specificationization, traditional projecting lamp, be to use 110 volts halogen projection lamp A (as shown in Figure 1), not only power consumption height, and heating easily, the relative life-span is also very short, average life span has only some months, in surging age of this oil price, not only not environmental protection; And the high heat that it distributed also to cause that electric wire cocks off easily etc. unexpected.In addition, traditional halogen projection lamp also has a shortcoming, is exactly that the halogen projecting lamp is steeped oneself-meeting and discharged excessive ultraviolet ray, if people's eyes or skin are shone for a long time, is very easy to damage and produce pathology, gives the sizable puzzlement of user.

Therefore once having the insider to release a kind of is the projecting lamp of lighting source with LED, utilize the characteristic of the low power consumption of LED to improve the defective of traditional halogen projection lamp, this existing LED projection lamp B (as shown in Figure 2), mainly formed by shell C, voltage conversion unit D and LED unit E, wherein, LED unit E and voltage conversion unit D are provided in a side of in this metal shell C, by this voltage conversion unit D originally 110 volts alternating current the direct current that can provide LED unit E to use is provided to, make the LED unit E can be luminous and reach the projection effect.Aforesaid existing LED projection lamp B structure, though compare at traditional halogen projection lamp A and have the effect of power saving environmental protection, but it is same, the problem of using LED unit E also to have heat radiation exists, because reach the effect of single-point projection, the brightness that LED unit E itself will acquire a certain degree, though science and technology makes rapid progress now, the brightness of LED unit E is also in the middle of constantly promoting, but it is same, LED unit E also can run into identical heat dissipation problem, especially the more traditional halogen projection lamp of LED unit E A, its heat-resisting degree is lower, and once temperature surpasses it when allowing setting value, the phenomenon that the brightness that this LED unit E is produced will decay and can't reach the illuminating effect of expection, even reduce its normal service life.Even so, existing LED projection light fixture B does not have any reinforcement part on radiator structure, therefore, to the heat energy that when LED unit E does, is produced, can only rely on metal shell C slowly to loose to aerial, radiating effect can be described as suitable undesirable, therefore at present such LED projection lamp B, only can use 1 watt LED unit E at most, cause its brightness that can provide to be subjected to certain limit, and can't effectively promote and replace traditional halogen projection lamp A, make high power consumption, traditional halogen projection lamp A of high heating still occupies a certain proportion of market always, causes sizable energy waste.

For improving above-mentioned defective, the utility model the people concentrate on studies, and through constantly making great efforts, test and improving, proposing a kind of design cleverly eventually, and can effectively improve the LED projection source module of above-mentioned defective.

Summary of the invention

Main purpose of the present utility model is, is to provide a kind of LED projection source module, wherein, by the setting of radiating fin, significantly increases area of dissipation, reaches the purpose that promotes radiating efficiency.

Of the present utility model time a purpose is, is to provide a kind of LED projection source module, wherein, by the lifting of radiating efficiency, makes the utility model can use the bigger LED of wattage, improves brightness of illumination.

A purpose more of the present utility model is, is to provide a kind of LED projection source module, wherein, by the significantly raising of brightness, can replace traditional halogen projecting lamp fully, significantly saves unnecessary energy waste, has the effect of environmental protection and energy saving.

Another purpose of the present utility model is, is to provide a kind of LED projection source module, and wherein, the characteristic by LED can produce various different colours light can increase the range of application and the variation of projecting lamp.

For reaching aforesaid purpose, the technical solution adopted in the utility model is, a kind of LED projection source module, it comprises main body, the LED unit, heat-sink unit, voltage conversion unit and base, wherein, main body is made by a heat conductive metal material, described main body is provided with an accommodation space can be for holding the LED unit, be electrically connected and be provided with between LED unit and voltage conversion unit, described voltage conversion unit then is located at base inside, and described base combines with main body, and the bottom surface of base is provided with and throws the conductive connecting pin that lamp socket cooperates, one end of described conductive connecting pin be and voltage conversion unit between be provided with and be electrically connected, described heat-sink unit is provided in a side of the outer rim of main body; The heat-sink unit of described main body outer rim is a kind of radiating fin group of being made up of several radiating fins; Described radiating fin group is to be linked by several L-shaped radiating fins to be in series, and the minor face of described radiating fin group is the outer rim that contact is fixed on main body, and its long limit is radial and outwards opens; The long limit outer rim of described radiating fin is the shape that cooperates projecting lamp; The material of described radiating fin is the good copper of thermal conductivity, aluminium, silver or golden; Described main material is copper, aluminium, silver or golden; Accommodation space bottom, described main body top is the bottom of aperture convergent, and it is the circular arc conical surface shape of a taper, sphere or similar bullet front end; The end that described described radiating fin group contacts with main body and base is equipped with a flanging to increase contact area; Described radiating fin is to be made with impact style by a sheet material; Described radiating fin is at the flanging that is respectively equipped with three different directions such as side edgefold outside a top flap, the bottom flap and near a side of main body, be respectively equipped with a fixing hole on top flap and bottom flap, the outer rim extension that is engaged in described top flap and bottom flap simultaneously is provided with a stiff end.

The LED projection source module that is proposed in order more clearly to describe the utility model below will cooperate icon to describe in detail.

Description of drawings

Fig. 1 is the schematic appearance of traditional halogen projection lamp;

Fig. 2 is the schematic appearance of existing LED projection lamp;

Fig. 3 is a three-dimensional exploded view of the present utility model;

Fig. 4 is a three-dimensional combination figure of the present utility model;

Fig. 5 is the three-dimensional exploded view of radiating fin group in the utility model;

Fig. 6 is the three-dimensional combination figure of radiating fin group in the utility model;

Fig. 7 is a generalized section of the present utility model.

Description of reference numerals: A-halogen projection lamp; The existing LED projection lamp of B-; The C-shell; The D-voltage conversion unit; The E-LED unit; The 1-main body; The 11-accommodation space; The 2-LED unit; The 3-heat-sink unit; 31,31 '-radiating fin; 311,311 '-top flap; 312,312 '-bottom flap; 313,313 '-outer side edgefold; 314,314 '-fixing hole; 315,315 '-stiff end; The 4-voltage conversion unit; The 5-base; The 51-conductive connecting pin; 6 one projection lamp sockets.

The specific embodiment

At first see also Fig. 3, it is to be three-dimensional exploded view of the present utility model, the utility model LED projection source module, mainly be by main body 1, LED unit 2, heat-sink unit 3, voltage conversion unit 4 and base 5 are formed, wherein, main body 1 by the preferable metal material of a heat transfer efficiency (for example: copper) made is, main body 1 is provided with an accommodation space 11 can be for holding

LED unit

2, and 4 of LED unit 2 and voltage conversion units are provided with and are electrically connected, 4 of this voltage conversion units are located at base 5 inside, this base 5 can combine with main body 1, the bottom surface of base 5 is provided with the conductive connecting pin 51 that can cooperate with projection lamp socket 6 (as shown in Figure 4), one end of this conductive connecting pin 51 is and 4 of voltage conversion units are provided with and are electrically connected, wherein this heat-sink unit 3 is provided in a side of the outer rim of main body 1, the thermal source that can effectively be produced from LED unit 2 sees through main body 1 and is transmitted on the heat-sink unit 3 and distributes fast, reaches the purpose that promotes radiating efficiency.

In the described structure of leading portion, this is arranged on the heat-sink unit 3 of main body 1 outer rim, it can be a kind of radiating fin group of being formed by most radiating fins 31, this radiating fin group is to be linked by most L-shaped radiating fins 31 to be in series, the minor face of each radiating fin 31 of this radiating fin group is that contact is fixed on the outer rim of main body 1, makes the long limit of radiating fin 31 be radial and outwards opens.This radiating fin 31 then is to be made by materials such as preferable copper of thermal conductivity or aluminium.In addition, in order to replace traditional halogen projection lamp A; Combine with existing projection lamp socket 6, the long limit outer rim of this radiating fin 31 is to cooperate the shape of throwing lamp socket 6.Design by aforementioned radiating fin group, very tangible, its whole area of dissipation will be obviously greatly at the shell area of existing product, have absolute pass to be by number at the height of radiating efficiency and area of dissipation, thus its whole radiating efficiency unquestionable will promote a lot.Therefore promptly can effectively solve existing product the problem of the luminance shortage that the LED unit of wattage greatly produced can't be installed because being limited in heat dissipation problem.Example with present MR-16 specification, existing LED projecting lamp is because be limited in the unclear problem of heat radiation function, therefore can only use 1 watt LED unit 2 at most, and structure of the present utility model, see through the LED unit 2 that to install up to 5 watts that is provided with of heat-sink unit 3, and do not have the not enough problem of heat radiation, and therefore can significantly promote its brightness of illumination, meet user's demand.

In the aforementioned structure of the present utility model, should be by most radiating fins 31 repeatedly to connect the radiating fin group 3 that the mode combined serial becomes a rectangular chain.Not only fit and producing in a large number with automation equipment, and it can be according to actual demand, be cut into different length to cooperate the main body 1 of different-diameter, the relative fin structure of in existing structure, making by different way, the utility model is not only more easy to be easy on making, and when the main body 1 of collocation different size and model will be more flexible also, can effectively reduce the production cost of manufacturer, not only can improve profit and can increase the price competitiveness of this product on the commercial market.

In the described chain radiating fin of the leading portion group 3, the radiating fin 31 of this composition chain radiating fin group 3 is to make repeatedly to connect mode, to in its structure that repeatedly connects because too many embodiment and variation can be arranged, therefore can't narrate one by one at this, therefore only propose a preferred embodiment and cooperate diagram to do an explanation at this.See also Fig. 5 and Fig. 6, it is three-dimensional exploded view and the three-dimensional combination figure that is respectively radiating fin group in the utility model.Wherein, this radiating fin 31 is made by the material with good thermal conductivity efficient (for example: aluminium alloy, copper, silver or gold).Its mainly be with this sheet material with the side of impact style at this sheet material, form the flanging of three different directions such as napex flanging 311, bottom flap 312 and outer side edgefold 313.Wherein be respectively equipped with fixing hole 314 on top flap 311 and bottom flap 312, the outer rim extension that is engaged in this top flap 311 and bottom flap 312 simultaneously is provided with stiff end 315.By aforesaid structure, can be with adjacent two radiating fins 31 after the drawing, top flap 311 in arbitrary radiating fin 31 wherein and bottom flap 312 outer rims are extended top flap 311 ' and the bottom flap 312 ' that the stiff end 315 that is provided with inserts another radiating fins 31 ' go up set fixing hole 314 ' (as shown in Figure 6), link fixing purpose and reach.And the design by aforementioned top flanging 311,

bottom flap

312 and 313 3 flangings of outer side edgefold, can reach the aforementioned purpose that repeatedly is connected into chain on the one hand, this bottom flap 312 can increase the area of the thermal contact conductance of 3 of this radiating fin group 3 and bases on the other hand, and outer side edgefold 313 then can increase the thermal contact conductance area of this radiating fin group 5 and main body 1 outer fringe surface.Therefore, the way of contact between the radiating fin group 5 of heat abstractor of the present utility model and main body 1 and the base 3 can be " planar " contact by the design of flanging 312,313.That is to say that the surface area of flanging 312,313 is to be fitted in fully on main body 1 surface, and make and contact for " planar " between radiating fin group 3 and the main body 1 but not contact as prior art " wire ".Therefore can effectively increase the heat conduction efficiency between main body 1 and this radiating fin group 3, and then increase the integral heat sink efficient of the utility model heat abstractor.

Aforementioned being located on the main body 1 in order to hold the accommodation space 11 of fixed L ED unit 2, it is to be extended axially and nonpenerative shrinkage pool along main body 1 by main body 1 one sides for one, the bottom of this accommodation space 11 is structure (as shown in Figure 7) persons that are an aperture convergent.

The utility model all is to be made by the copper with splendid heat transfer efficiency, silver or golden material at the described every composition assembly of leading portion.And in the described bottom that is located at accommodation space 11 on the main body 1 of leading portion, it can be for an inversion taper, be inverted the sphere or the circular arc conical surface shape of similar inversion bullet front end.

In the described structure of leading portion, the LED product that this LED unit can be various different sizes on the market.And the utility model is after promoting through heat dissipation, except the LED unit that can use big wattage so that the high brightness that more meets user's demand to be provided, shorten the luminance difference distance of itself and traditional halogen projection lamp like this, reach the purpose that replaces traditional halogen projection lamp fully.And the LED cell-average more has and reaches 100,000 hours service life, therefore the utility model is compared at traditional halogen projection lamp, except advantage with power saving, environmental protection and longer service life, the characteristic of its low heating more can effectively promote the security of use, avoids because the long-time caused fire problem of high temperature.On the other hand, the LED unit does not have traditional halogen projecting lamp to steep oneself-meeting to produce the advantage of uv damage eyes and skin yet, to having more absolute guarantee in human body safety.

More than explanation is for this is novel just illustrative, and nonrestrictive, those of ordinary skills understand, and under the situation of the spirit and scope that do not break away from following claims and limited, can make many modifications, change, or equivalent.

Claims

1. LED projection source module, it comprises main body, the LED unit, heat-sink unit, voltage conversion unit and base, it is characterized in that, main body is made by a heat conductive metal material, described main body is provided with an accommodation space can be for holding the LED unit, be electrically connected and be provided with between LED unit and voltage conversion unit, described voltage conversion unit then is located at base inside, described base combines with main body, the bottom surface of base is provided with and throws the conductive connecting pin that lamp socket cooperates, one end of described conductive connecting pin be and voltage conversion unit between be provided with and be electrically connected, described heat-sink unit is provided in a side of the outer rim of main body.

2. LED projection source module according to claim 1 is characterized in that, the heat-sink unit of described main body outer rim is a kind of radiating fin group of being made up of several radiating fins.

3. LED projection source module according to claim 2, it is characterized in that, described radiating fin group is to be linked by several L-shaped radiating fins to be in series, and the minor face of described radiating fin group is the outer rim that contact is fixed on main body, and its long limit is radial and outwards opens.

4. LED projection source module according to claim 3 is characterized in that, the long limit outer rim of described radiating fin is the shape that cooperates projecting lamp.

5. LED projection source module according to claim 2 is characterized in that, the material of described radiating fin is the good copper of thermal conductivity, aluminium, silver or golden.

6. LED projection source module according to claim 1 is characterized in that, described main material is copper, aluminium, silver or golden.

7. LED projection source module according to claim 1 is characterized in that, accommodation space bottom, described main body top is the bottom of aperture convergent, and it is the circular arc conical surface shape of a taper, sphere or similar bullet front end.

8. LED projection source module according to claim 2 is characterized in that, the end that described radiating fin group contacts with main body and base is equipped with a flanging to increase contact area.

9. LED projection source module according to claim 2 is characterized in that described radiating fin is to be made with impact style by a sheet material.

10. LED projection source module according to claim 2, it is characterized in that, described radiating fin is at the flanging that is respectively equipped with three different directions such as side edgefold outside a top flap, the bottom flap and near a side of main body, be respectively equipped with a fixing hole on top flap and bottom flap, the outer rim extension that is engaged in described top flap and bottom flap simultaneously is provided with a stiff end.