TWM491127U - Light source module and lighting apparatus - Google Patents

Description

Light source module and lamp

The present invention relates to a light source module and a light fixture, and more particularly to a light source module and a light fixture for mounting on a vehicle to provide illumination or warning.

Since the illuminating parts of the lamp light generate waste heat while illuminating, in order to avoid the problem that the overheating affects the use efficiency of the lamp, and the trouble of shortening the service life, it is usually necessary to dissipate heat to lower the lamp temperature. The above-mentioned heat-dissipating means for reducing the temperature of the lamp, for example, a water-cooling means using heat as a medium to dissipate heat, or an air-cooling means using heat as a medium to dissipate heat.

Among the two methods, since the specific heat of water is high and more heat energy can be absorbed, the effect of using a water-cooled heat-dissipating means is better. However, due to the water-cooling type of heat dissipating means, it is necessary to install components such as a circulating water pipe, a pressure pump and a cooling liquid, and the relative equipment cost is high, and the space occupied by the installation is also large.

In view of this, the creator of the present case developed a light source module and a luminaire that use air-cooled heat-dissipating means but the heat-dissipating effect is not reduced, and at the same time, because the components are relatively simple, the equipment cost and the space occupied by the installation can be reduced.

Therefore, the object of the present invention is to provide a light source module and a lamp with a good heat dissipation effect, a compact structure and a small overall volume.

Therefore, the novel light source module comprises: one light emitting unit and one heat dissipating unit. The heat dissipating unit includes a heat sink, and a heat conducting seat connected between the light emitting unit and the heat sink and capable of conducting thermal energy generated by the light emitting unit to the heat sink. The heat sink has a first surface abutting the heat conducting seat, a second surface opposite to the first surface, and a plurality of heat dissipation through holes extending through the first surface and the second surface. Each of the heat dissipation perforations has a first tapered hole portion formed on the first surface, and a second tapered hole portion formed on the second surface.

The lamp of the present invention comprises: a light source module as described above, and a lamp cover disposed on the heat sink of the light source module and surrounding the light emitting unit of the light source module.

The novel function is that the novel is connected between the light-emitting unit and the heat sink through the heat-conducting seat, and the innovative structure can transmit the heat energy generated by the light-emitting unit to the heat sink. Further matching with the new design of forming the heat dissipation perforations on the heat sink can increase the heat dissipation surface area of the heat sink and improve the heat dissipation performance. The heat-dissipating perforations can also serve as a passage for the hot air to escape, so that the thermal energy of the heat-conducting seat can be outwardly transmitted through the heat-dissipating perforations. Through the aforementioned air-cooled heat dissipation means, the heat dissipation effect is not reduced, and at the same time, because the components are relatively compact, the equipment cost and the space occupied by the installation can be reduced.

1‧‧‧Light source module

2‧‧‧Lighting unit

21‧‧‧Lighting parts

3‧‧‧heating unit

31‧‧‧ Heat sink

310‧‧‧With slot

311‧‧‧ first side

312‧‧‧ second side

313‧‧‧Solid perforation

314‧‧‧ first cone hole

315‧‧‧First diameter expansion opening

316‧‧‧ first diameter reduction opening

317‧‧‧Second taper

318‧‧‧Second diameter expansion opening

319‧‧‧Second diameter shrinkage opening

32‧‧‧heating seat

321‧‧‧ Thermal base

322‧‧‧Assembly Department

323‧‧‧Bars

33‧‧‧fan

4‧‧‧Combination unit

41‧‧‧Clamping parts

411‧‧‧The first clamp against the wall

412‧‧‧Second clip against the wall

413‧‧‧Connecting wall

42‧‧‧ card slot

5‧‧‧shade

51‧‧‧Transparent parts

52‧‧‧Reflecting parts

521‧‧‧

522‧‧‧ Reflective wall

6‧‧‧Light shell

60‧‧‧ installation space

61‧‧‧Light cover

62‧‧‧Shell body

621‧‧‧ventilation holes

81‧‧‧First direction

82‧‧‧second direction

83‧‧‧ third direction

Other features and effects of the present invention will be apparent from the following description of the drawings. FIG. 1 is an exploded perspective view of a first embodiment of the present luminaire; FIG. 2 is the first embodiment. Figure 3 is a partial perspective view showing a top view of a first surface of a heat sink of the first embodiment; Figure 4 is a partial perspective view showing one of the heat sinks FIG. 5 is an exploded perspective view of a second embodiment of the present luminaire; FIG. 6 is a combined side cross-sectional view of the second embodiment; FIG. 7 is a third view of the novel luminaire An exploded perspective view of an embodiment; and Fig. 8 is a combined side cross-sectional view of the third embodiment.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to Figures 1 and 2, a first embodiment of the luminaire of the present invention comprises: a light source module 1, and a lamp cover 5.

The light source module 1 comprises: one light emitting unit 2, one heat radiating unit 3, and a plurality of combining units 4.

The light unit 2 includes a light emitting member 21 mounted on the heat conducting base 32. In this embodiment, the illuminating member 21 is a light emitting diode lamp. (LED light) form.

The heat dissipating unit 3 includes a heat sink 31 and a heat conducting seat 32 connected between the light emitting unit 2 and the heat sink 31.

Referring to Figures 2, 3 and 4, the heat sink 31 is made of a metal material and has a plate shape. The heat sink 31 has a first surface 311 opposite to the heat conducting base 32, a second surface 312 opposite to the first surface 311, and a plurality of heat dissipation holes extending through the first surface 311 and the second surface 312. 313, and a plurality of connecting slots 310 respectively formed on the first surface 311 and connected to the two heat dissipation through holes 313 of the heat dissipation through holes 313.

The heat dissipation through holes 313 are arranged in an array along a first direction 81 and a second direction 82 , respectively, and extend through the first surface 311 and the second surface 312 along a third direction 83 . The first direction 81, the second direction 82, and the third direction 83 are perpendicular to each other. In practice, the heat sink 31 is provided with 80,000 to 500,000 heat dissipation perforations 313 per square meter. When the number of the heat dissipation through holes 313 is less than 80,000 per square meter, the heat dissipation effect of the heat dissipation seat 31 is not ideal; when the number of the heat dissipation holes 313 is more than 500,000 per square meter, the heat dissipation Although the heat dissipation effect of the seat 31 is excellent, the structural strength of the heat sink 31 is weak and easily damaged. Preferably, the heat sink 31 is provided with 250,000 to 300,000 heat dissipation perforations 313 per square meter.

Each of the heat dissipation through holes 313 has a first tapered hole portion 314 formed on the first surface 311 and a second tapered hole portion 317 formed on the second surface 312. In this embodiment, the first tapered hole portions 314 and the second tapered hole portions 317 are both conical.

Each of the first tapered hole portions 314 has a first radial expansion opening 315 away from the second surface 312, and a first diameter reducing opening 316 adjacent to the second surface 312 and having a smaller diameter than the first radial expansion opening 315. Each of the second tapered hole portions 317 has a second radial expansion opening 318 away from the first surface 311, and a second diameter reducing opening 319 adjacent to the first surface 311 and having a smaller diameter than the second radial expansion opening 318. The apertures of the first radial expansion openings 315 are smaller than the apertures of the second radial expansion openings 318.

In this embodiment, the distance between the first reducing opening 316 of each of the heat dissipation through holes 313 and the second reducing opening 319 is zero, that is, the first reducing opening 316 overlaps with the second reducing opening 319. In practice, each of the heat dissipation through holes 313 may further have a connecting hole portion (not shown) communicating with the first reducing opening 316 and the second reducing opening 319, and the first reducing opening 316 is The distance of the second diameter reducing opening 319 is not zero, and the two do not overlap.

The connecting slots 310 extend longitudinally along the first direction 81 and are connected between the two adjacent first tapered hole portions 314. In this embodiment, each of the connecting grooves 310 has a V-shaped cross-sectional structure.

Referring to FIGS. 1 and 2, the heat conducting seat 32 is made of a metal material and has a plate shape for transmitting thermal energy generated by the light emitting unit 2 to the heat sink 31. The heat conducting base 32 has a heat conducting base portion 321 which abuts against the first surface 311 of the heat sink base 31, and an assembly portion 322 which is outwardly convex from a side of the heat conducting base portion 321 opposite to the heat sink seat 31. The light emitting unit 2 is disposed in the assembly portion 322. The projected area of the heat conducting base 321 on the heat sink 31 is larger than the projected area of the assembly portion 322 in the heat sink 31 .

The bonding units 4 are respectively used to combine the heat sink 31 with the heat conducting seat 32. Each of the bonding units 4 includes a C-shaped clamping member 41. Each of the clamping members 41 has a first clamping wall 411 resting on the heat conducting base 321 of the heat conducting base 32 and a second clamping wall 412 resting on the second surface 312 of the heat sink 31. And a connecting wall 413 connected between the first clamping wall 411 and the second clamping wall 412.

It should be noted that the means for combining the heat sink 31 and the heat conducting seat 32 is not limited to the form disclosed in the embodiment, and the two may be combined by a screw lock or other engaging or snapping means. In addition, the light source module 1 may include only one bonding unit 4 for combining the heat sink 31 and the heat conducting base 32, and the number of the combining units 4 may be two or more, and is not limited.

The lamp cover 5 is disposed on the assembly portion 322 of the heat sink 31 and surrounds the light-emitting member 21 of the light-emitting unit 2 . The lampshade 5 of the present embodiment includes a light transmissive member 51 spaced apart from the illuminating member 21 and capable of guiding the light emitted by the illuminating member 21 outward, and a light-emitting member 51 disposed around the illuminating member 21 and disposed on the assembly portion 322 The reflector 52 is connected between the assembly portion 322 and the light transmissive member 51.

In this embodiment, when the light emitting unit 2 is driven to emit light, the light emitting member 21 can project light outward through the light transmitting member 51 of the lamp cover 5. At the same time, the light-emitting unit 2 also generates thermal energy. Since the light emitting unit 2 is disposed on the assembly portion 322 of the heat conducting seat 32, the heat conduction The heat conducting base 321 of the seat 32 abuts against the first face 311 of the heat sink 31. Therefore, the heat conducting seat 32 conducts heat energy from the higher temperature light emitting unit 2 to the lower temperature heat radiating seat 31, thereby avoiding the problem that the light emitting unit 2 is overheated and damaged. The projected area of the heat conducting base 321 in the heat sink 31 is larger than the projected area of the heat sink base 322 of the assembly portion 322. The foregoing structure enables the heat conductive base portion 321 to have more heat dissipation regions to contact the heat sink 31. One side 311 thus enhances the heat transfer effect of the heat conducting seat 32.

The formation of the heat dissipation holes 313 through the heat sink 31 increases the surface area of the heat sink 31 and increases the heat dissipation area, thereby improving the heat dissipation performance of the heat sink 31. The heat dissipation holes 313 extend through the first surface 311 and the second surface 312 respectively, so that the heat energy of the heat conduction base 321 of the heat conduction seat 32 can be outwardly transmitted through the heat dissipation holes 313. Through the aforementioned air-cooled heat dissipation means, the heat dissipation effect is not reduced, and at the same time, because the components are relatively compact, the equipment cost and the space occupied by the installation can be reduced.

Further, in this embodiment, the first surface 311 is formed with a connecting groove 310 respectively connected between the two heat dissipation holes 313 of the heat dissipation through holes 313, so that the outside air of the lower temperature can pass through the heat dissipation holes 313. With the slots 310, a flow of air is generated, thereby increasing the chance of air exchange with the thermally conductive base 321 of the heat conducting base 32 and the heat sink 31 to improve heat dissipation performance. In addition, the formation of the slots 310 increases the surface area of the first surface 311, thereby increasing the surface area of the heat sink 31 and the heat dissipating region, and also contributing to the improvement of heat dissipation performance.

It should be noted that as long as the heat sink 31 forms the equal dispersion The above-mentioned design can achieve the above-mentioned purpose of enhancing the heat dissipation effect, as long as the connection holes 310 are respectively connected between the two heat dissipation holes 313 of the heat dissipation holes 313. In this embodiment, the heat dissipation through holes 313 are arrayed along the first direction 81 and the second direction 82 respectively, and the number of the heat dissipation through holes 313 can be increased by the foregoing arrangement.

In each of the heat dissipation through holes 313, the diameter of the first radial expansion opening 315 of the first tapered hole portion 314 is smaller than the diameter of the second radial expansion opening 318 of the second tapered hole portion 317, and the first diameter reducing opening 316 is matched. The caliber is smaller than the diameter of the first radial expansion opening 315 and the diameter of the second diameter reducing opening 319 is smaller than the diameter of the second radial expansion opening 318. The foregoing structural design can generate a venturi effect of the airflow when the gas flows through the heat dissipation. In the case of the perforation 313, since the diameter of the first diameter reducing opening 316 and the second diameter reducing opening 319 is reduced, the flow velocity is increased to lower the pressure, so that the flow velocity of the air can be accelerated, thereby improving the heat dissipation effect.

In addition, in the embodiment, the connecting slots 310 extend along the first direction 81 and are connected between the two adjacent first tapered holes 314, whereby the connecting slots 310 are respectively One set forms a plurality of long slots extending in the first direction 81, thereby enhancing the convection effect of air within the heat dissipation perforations 313 and the slots 310.

Referring to Figures 5 and 6, a second embodiment of the present luminaire is substantially identical to the first embodiment. The difference between the two is that the luminaire of the present embodiment further includes a lamp housing 6. The lamp housing 6 includes a light-transmissive cover body 61, a shell body 62 that abuts the light-transmissive cover body 61, and a light-emitting cover body 61 and the shell body 62 are defined and provided for the light source module. 1 The mounting space 60 is mounted to the inside of the globe 5. The housing body 62 has a plurality of ventilation holes 621 adjacent to the heat dissipation seat 31 of the light source module 1 and communicating with the installation space 60.

The lampshade 5 of the present embodiment has a reflector 52 having an L-shaped cross-section. The reflector 52 of the present embodiment has a base wall 521 disposed on the assembly portion 322 of the thermally conductive seat 32, and a base wall 521. A reflective wall 522 that extends outward and corresponds to the light-emitting unit 2 to reflect the light of the light-emitting unit 2 toward the transparent cover 61.

The light emitting unit 2 of the present embodiment includes a plurality of light emitting members 21 mounted on the assembly portion 322 of the heat conducting base 32.

Each of the bonding units 4 of the embodiment further includes a card slot 42 disposed on the heat conducting base portion 321 of the heat conducting base 32 and being clamped by the first clamping wall 411 of the clamping member 41. The card slots 42 can enhance the bonding stability of the clamping member 41 between the heat conducting seat 32 and the heat sink 31.

The light source module 1 of the embodiment further includes a plurality of fans 33 mounted on the second surface 312 of the heat sink 31 and capable of generating airflow to allow air to flow through the heat dissipation holes 313. The fan 33 is located between the second surface 312 of the heat sink 31 and the vent 621 of the lamp housing 6. In practice, the light source module 1 may include only one fan 33, and the number of the fans 33 may be three or more, without limitation.

In this embodiment, when the light-emitting unit 2 is driven to emit light, the light-emitting elements 21 can project light toward the reflective wall 522 of the reflector 52 of the lamp cover 5, and the light is directed toward the light through the reflective wall 522. The transparent cover 61 of the shell 6 reflects, and the light is emitted through the transparent cover 61 Out. At the same time, the light-emitting unit 2 also generates thermal energy.

Therefore, the heat conducting seat 32 conducts the heat energy from the higher temperature light emitting unit 2 to the lower temperature heat radiating seat 31, and at the same time, the fan 33 can be driven to pass the lower temperature air to the air through the venting holes 621. The heat dissipation holes 313 are blown, or the fans 33 are driven to draw higher temperature air through the heat dissipation holes 313 toward the vent holes 621, thereby reducing the temperature of the heat dissipation seat 31 and the heat conduction seat 32 to avoid the light emission. The problem that unit 2 is overheated and damaged. The principle of heat dissipation of the heat sink 31 and the heat conducting seat 32 is the same as that described above and will not be described in detail.

Referring to FIGS. 7 and 8, a third embodiment of the present luminaire is substantially the same as the second embodiment. The difference between the two is that the housing body 62 of the lamp housing 6 of the present embodiment has a light source module adjacent to the light source module. The heat sink 31 of the 1 is connected to the ventilation hole 621 of the installation space 60.

The heat conducting base 32 of the embodiment has a substantially T-shaped cross-section, and the heat conducting base 321 of the heat conducting seat 32 abuts against the first surface 311 of the heat sink 31. The assembly portion 322 extends outward from a side of the thermally conductive base portion 321 opposite to the heat dissipation seat 31 and is at an angle to the thermally conductive base portion 321 .

The heat conducting base 32 of the embodiment further has a plurality of protruding portions 323 protruding from the heat conducting base portion 321 and the assembling portion 322, and the protruding portion 323 protrudes outwardly to increase the heat conducting seat 32. The surface area, thereby increasing the heat dissipation area and improving the heat dissipation effect.

In summary, the novel is connected between the light emitting unit and the heat sink through the heat conducting seat, and the innovative structure can transmit the heat energy generated by the light emitting unit to the heat sink. Further cooperating with the heat sink to form the The new design of the heat dissipation perforation can increase the heat dissipation surface area and heat dissipation performance of the heat sink. The heat-dissipating perforations can also serve as a passage for the hot air to escape, so that the thermal energy of the heat-conducting seat can be outwardly transmitted through the heat-dissipating perforations. Through the above-mentioned air-cooled heat-dissipating means, the heat-dissipating effect is not reduced, and at the same time, because the components are relatively simple and can reduce the equipment cost and the space occupied by the installation, the object of the present invention can be achieved.

However, the above description is only for the embodiments of the present invention, and the scope of the present invention cannot be limited thereto, that is, the simple equivalent changes and modifications made by the present patent application scope and the contents of the patent specification are still It is within the scope of this new patent.

1‧‧‧Light source module

2‧‧‧Lighting unit

21‧‧‧Lighting parts

3‧‧‧heating unit

31‧‧‧ Heat sink

310‧‧‧With slot

311‧‧‧ first side

312‧‧‧ second side

313‧‧‧Solid perforation

314‧‧‧ first cone hole

315‧‧‧First diameter expansion opening

316‧‧‧ first diameter reduction opening

317‧‧‧Second taper

318‧‧‧Second diameter expansion opening

319‧‧‧Second diameter shrinkage opening

32‧‧‧heating seat

321‧‧‧ Thermal base

322‧‧‧Assembly Department

4‧‧‧Combination unit

41‧‧‧Clamping parts

411‧‧‧The first clamp against the wall

412‧‧‧Second clip against the wall

413‧‧‧Connecting wall

5‧‧‧shade

51‧‧‧Transparent parts

52‧‧‧Reflecting parts

81‧‧‧First direction

83‧‧‧ third direction

Claims (18)

A light source module comprising: a light emitting unit; and a heat dissipating unit, comprising a heat sink, and a heat source connected between the light emitting unit and the heat sink and capable of transmitting heat energy generated by the light emitting unit to the heat sink a heat conducting seat; the heat sink has a first surface abutting the heat conducting seat, a second surface opposite to the first surface, and a plurality of heat dissipation perforations extending through the first surface and the second surface; The heat dissipation through hole has a first tapered hole portion formed on the first surface, and a second tapered hole portion formed on the second surface. The light source module of claim 1, wherein the heat sink further has a plurality of first tapered hole portions formed on the first surface and respectively connected to the first tapered hole portions Even slot. The light source module of claim 2, wherein the heat dissipation perforations are arranged in an array along a first direction and a second direction, respectively, the slots are elongated along the first direction and connected to Between two adjacent first tapered hole portions. The light source module of claim 2, wherein the cross-sectional structure of each of the slots is V-shaped. The light source module of claim 2, wherein the first tapered hole portion of each of the heat dissipation perforations has a first radial expansion opening away from the second surface, and a first diameter reducing opening adjacent to the second surface The second tapered hole portion of each of the heat dissipation perforations has a second radial expansion opening away from the first surface, and a second diameter reducing opening adjacent to the first surface; the first diameter The aperture of the expansion opening is smaller than the aperture of the second radial expansion opening. The light source module of claim 5, wherein the distance between the first reducing opening of each of the heat dissipation perforations and the second reducing opening is zero. The light source module of claim 1, wherein the heat conducting base has a heat conductive base abutting against the first surface of the heat sink, and a convex portion of the heat conductive base opposite to the heat sink The assembly unit is disposed in the assembly portion; the projected area of the heat conduction base portion in the heat dissipation seat is larger than the projection area of the assembly portion in the heat dissipation seat. The light source module of claim 1, wherein the heat conducting base has a heat conductive base abutting against the first surface of the heat sink, and one extending outward from a side of the heat conductive base opposite to the heat sink And an assembly portion that is at an angle to the thermally conductive base; the illumination unit is disposed at the assembly portion. The light source module of claim 8, wherein the heat conducting base further has a plurality of rib portions protruding from the heat conducting base portion and the assembly portion. The light source module of claim 1, further comprising at least one fan mounted on the second surface of the heat sink and generating an air flow to allow air to flow through the heat dissipation perforations. The light source module of claim 1, wherein the light emitting unit comprises at least one light emitting member mounted on the heat conducting base. The light source module of claim 1, further comprising at least one bonding unit for combining the heat sink and the heat conducting seat, the bonding unit comprising a C-shaped clamping member, the clamping member having a first clamping wall against the heat conducting seat, a second clamping wall resting on the heat sink, and a first clamping wall and the second clamping wall The connection between the walls. The light source module of claim 12, wherein the bonding unit further comprises a card slot disposed on the heat conducting seat for the first clamping wall to be latched. The light source module of claim 12 or 13, wherein the light source module comprises a plurality of combining units. A light fixture comprising: the light source module according to any one of claims 1 to 13; and a light cover disposed on the heat sink of the light source module and surrounding the light emitting unit of the light source module. The luminaire of claim 15 , wherein the lamp cover comprises a light transmissive member spaced apart from the light emitting unit and capable of guiding the light emitted by the light emitting unit outward, and a heat sink disposed around the light emitting unit And a reflector connected between the heat sink and the light transmissive member. The lamp of claim 15, further comprising a lamp housing, the lamp housing comprising a light transmissive cover body, a shell body abutting the light transmissive cover body, and a light enclosure body surrounding the shell body a mounting space defined for the light source module and the lamp cover; the lamp cover has a L-shaped reflector, the reflector has a base wall disposed on the heat conducting seat, and a The base wall extends outwardly and corresponds to the light-emitting unit to reflect the light of the light-emitting unit toward the reflective wall of the light-transmitting cover. The luminaire of claim 17, wherein the housing body of the lamp housing has at least one heat sink adjacent to the light source module and communicates the installation space Ventilation holes.