TWI535965B - Light emitting diode lamp for vehicles - Google Patents

Description

Automotive light-emitting diode lamp

The invention relates to a light-emitting diode lamp for a vehicle, in particular to a light-emitting diode lamp for a vehicle which can effectively improve the uniformity of light emitted by the light-emitting diode, the illumination range and the heat dissipation efficiency.

According to the advancement of technology and the improvement of the concept of environmental protection, the existing tungsten lamps with high power consumption and short service life have been gradually replaced by light-emitting diodes. The light-emitting diode can emit light with only a small amount of electric energy, and consumes less power, which can effectively reduce the use of electric energy, plus its small size, long life, fast reaction rate, and shock resistance. Street lamps, indoor lamps, traffic lights, and lights are all used as light sources by replacing the tungsten lamps with light-emitting diodes.

Please refer to the "LED Light Improvement Structure" of China's Announcement No. M439749, the "Light Emitting Diode Module" of China's Announcement No. M439126 and the "High Heat Dissipation Light Emitting Diode" of China's Announcement No. M439147. The common light-emitting diode lamps on the market mainly include a plurality of light-emitting diodes mounted on the plane of the same substrate. When the light-emitting diodes emit light, since the light-emitting diode system is linearly illuminated, all the devices are installed. The light-emitting diodes disposed on a plane of the substrate can only directly illuminate the light in a direction perpendicular to the plane of the substrate, so that the existing light-emitting diode lamps have limited illumination range and illumination. The lack of poor results.

Furthermore, in order to increase the illumination brightness of the light-emitting diode lamp, the light-emitting diode is gradually improved in the production of the light-emitting diode lamp, and as the power of the light-emitting diode is increased, the light-emitting illumination process is generated. The temperature of the light-emitting diode is relatively high, and the thermal energy generated by the light-emitting diode is directly transmitted to the assembled substrate through the light-emitting diode, so that the light-emitting diode and the electronic component assembled on the same substrate are burnt and damaged. The service life of the existing light-emitting diode lamps cannot be effectively improved. Even if the heat-dissipating fins are designed on the socket of the light-emitting diode lamp to assist the heat dissipation, in practical use, it is difficult to use only the heat-dissipating fins. The heat generated by the light-emitting diode is dissipated, so that the electronic components in the existing light-emitting diode lamp are often burned and damaged due to excessive temperature.

The reason is that the present inventors have in view of the fact that the existing light-emitting diode lamps have limited illumination range, uneven illuminance and high temperature, and the LEDs are easily damaged, and the light-emitting diode lamps are easily damaged. With the help of manufacturing and design experience and knowledge, and through many ingenuity, research and development of existing light-emitting diode lamps, and research and development of the present invention.

The invention relates to a light-emitting diode lamp for a vehicle, and the main purpose thereof is to provide a light-emitting diode lamp for a vehicle which can effectively improve the uniformity of light emitted by the light-emitting diode and the illumination range.

In order to achieve the above-mentioned implementation, the present inventors have developed a light-emitting diode lamp for a vehicle, which is provided with a lamp holder, and a three-dimensional assembly portion is connected to the lamp holder group, and a plural number is set on the three-dimensional group vertical portion. The light-emitting diode has a plurality of heat-dissipating fins on the outer peripheral wall of the lamp holder, and a cover is disposed on the outer cover of the heat-dissipating fin, and a guide groove is formed between the two heat-dissipating fins and the outer cover. The air inlet and the air outlet are respectively formed at the two ends of the guide groove.

The illuminating diode lamp for a vehicle as described above, wherein the air inlet of the guiding groove has a diameter larger than the diameter of the air outlet, and the diameter of the guiding groove is from the air inlet to the air outlet thereof. Gradually shrink.

The illuminating diode lamp for a vehicle as described above, wherein the heat dissipating fin is formed into one of a spiral shape or a straight shape.

The illuminating diode lamp for a vehicle as described above, wherein the three-dimensional assembly peripheral wall is further provided with a heat conducting layer.

In the above-described vehicle light-emitting diode lamp, a connecting member is further provided between the three-dimensional assembly and the socket.

In the above-mentioned vehicle light-emitting diode lamp, the lamp holder is further provided with a lamp cover such that the three-dimensional assembly and the light-emitting diode are disposed in the space in which the lamp holder and the lamp cover are formed.

The illuminating diode lamp for a vehicle as described above, wherein the inner wall of the lampshade is further provided with a light reflecting layer.

The illuminating diode lamp for a vehicle as described above, wherein the reflective layer of the inner wall of the lamp cover is located at one of the rear side, the upper side, the lower side, the left side or the right side of the three-dimensional assembly.

In the illuminating diode lamp for a vehicle as described above, the plurality of illuminating diodes are provided in the plurality of three-dimensional erected portions.

In the above-described vehicle light-emitting diode lamp, the peripheral side of each of the three-dimensional group standings is further provided with a reflection cover.

Therefore, the illuminating diode lamp for a vehicle of the present invention utilizes a three-dimensional assembly portion which is spherical or columnar, so that the plurality of illuminating diodes are evenly arranged on the three-dimensional group at 360 degrees in various directions. Therefore, when the light emitting diode emits light, the light can be lighted from various directions. The line is irradiated out, and accordingly, the effect of greatly improving the uniformity of light emitted by the light-emitting diode lamp for the vehicle and the irradiation range can be achieved.

In addition, the LED light-emitting diode lamp of the present invention is coated or sprayed with a heat-conducting layer on the peripheral wall of the three-dimensional assembly of the light-emitting diode. Here, when the heat generated by the light-emitting diode is generated, The heat conducting layer provided in the three-dimensional group vertical portion dissipates the heat energy generated by the operation of the light-emitting diodes to avoid the high-temperature heat energy accumulated on the three-dimensional group of the light-emitting diodes, thereby effectively preventing the light-emitting two. The pole body burns the damaged person due to the high temperature.

In addition, the light-emitting diode lamp for a vehicle of the present invention is provided with a connecting member between the three-dimensional assembly of the light-emitting diode and the lamp holder, and the outer peripheral wall of the lamp holder is provided with a heat-dissipating fin. The heat generated by the light-emitting diode of the three-dimensional group can further utilize the connecting member to quickly transfer the heat energy to the lamp holder and dissipate through the heat-dissipating fins, thereby avoiding the accumulation of high-temperature heat energy in the vehicle. In the diode lamp, the LED and other electronic components are burned and damaged due to high temperature.

The illuminating diode lamp for a vehicle of the present invention is coated or sprayed with a reflective layer on the inner side wall of the lamp holder, and the reflective layer is disposed behind the three-dimensional assembly, above, below or left, according to the needs of use. At the right position, when the light-emitting diodes arranged in the three-dimensional group are illuminated, under the reflection of the reflective layer, the brightness of the light toward the front, the bottom, the upper or the right and the left can be increased. This is to provide a luminaire that requires a variety of different lighting directions.

Further, the illuminating diode lamp for a vehicle of the present invention is further provided with a heat-dissipating fin of the lamp holder and a cover for forming a guide groove between the outer cover and the heat-dissipating fin, so that when the vehicle of the present invention is used for the light-emitting two When the polar body lamp is used as a lamp, the air flow generated by the vehicle travels through the air inlet of the guide groove to the air outlet of the guide groove to form forced convection, and the heat dissipation fin is cooled. Take it away to improve heat dissipation.

In addition, the light-emitting diode lamp for a vehicle of the present invention has a guide groove formed by the outer cover and the heat-dissipating fin, wherein the diameter of the air inlet is larger than the diameter of the air outlet, and the groove diameter of the guide groove is gradually changed from the air inlet to the air outlet. The shape of the bundled venturi tube can increase the flow velocity of the airflow from the air inlet of the guide channel through the guide groove to the air outlet to further increase the heat dissipation efficiency of the heat dissipation fin.

The illuminating diode lamp for the vehicle of the invention has a spiral shape, and the air inlet of the guide groove is larger than the diameter of the air outlet, and the groove diameter of the guide groove is gradually increased from the air inlet to the air outlet. The shape of the venturi tube is designed to allow the airflow entering the guide trough to be guided by the spiral fins, thereby increasing the flow rate of the airflow from the chute, and further improving the heat energy on the fins by the airflow And bring out the efficiency of the discharge.

(1)‧‧‧ lamp holder

(2) ‧‧‧shade

(3) ‧‧‧Lighting diodes

(4) ‧ ‧ ‧ Department

(41)‧‧‧Links

(5) ‧‧‧thermal layer

(6)‧‧‧Friction fins

(7) ‧‧‧ Cover

(8)‧‧‧Guide trough

(81)‧‧‧Air inlet

(82) ‧ ‧ air outlet

(9) ‧‧‧reflective layer

(10) ‧‧‧reflector

First picture: perspective view of the invention (1)

Second picture: perspective view of the invention (2)

Third: cross-sectional view of the present invention

Fourth figure: use state diagram of the present invention

Figure 5 is a cross-sectional view showing an embodiment of the present invention

Figure 6 is a cross-sectional view showing a second embodiment of the present invention

Figure 7 is a cross-sectional view showing a third embodiment of the present invention

Figure 8 is a cross-sectional view showing a fourth embodiment of the present invention

Ninth view: perspective view of a fifth embodiment of the present invention

Figure 11 is a cross-sectional view showing a fifth embodiment of the present invention

In order to make the technical means of the present invention and the effects thereof can be more completely and clearly disclosed, the following is a detailed description. Please refer to the disclosed drawings and drawings: First, please refer to the first figure, which is a light-emitting diode lamp for a vehicle of the present invention, which is mainly provided with a lamp cover (2) in a lamp holder (1) group, and a lamp holder (1) and a lamp cover (2). The light-emitting diode (3) is disposed in the space formed by the lamp holder (1) and the lamp cover (2), and further comprises a three-dimensional group standing portion (4), the three-dimensional group standing portion (4) The system may be made of an aluminum alloy, and the three-dimensional shape may be a square or hexagonal polygonal cylinder [as shown in the first figure] or a sphere [as shown in the second figure], and The outer peripheral wall of the three-dimensional assembly (4) is coated or sprayed with a heat-conducting layer (5), and the material of the heat-conducting layer (5) may be a ceramic insulator or the like, and a plurality of light-emitting lights are evenly arranged on the three-dimensional group vertical portion (4). The polar body (3) is arranged such that the light-emitting diodes (3) on the three-dimensional assembly portion (4) are evenly arranged at 360 degrees, and the three-dimensional assembly portion (4) is connected to one end of a column-shaped connecting member (41). Connected, and the other end of the connecting member (41) is assembled with the lamp holder (1), or the two ends of the connecting member (41) can be integrally connected with the three-dimensional assembly (4) and the lamp holder (1). Molding, and a plurality of heat sink fins on the outer peripheral wall of the lamp holder (1) (6) The heat dissipating fins (6) may be formed in a spiral shape or a straight sheet shape, and the outer fins (6) of the heat dissipating fins (6) are provided with a venturi tube shape cover (7) for dissipating heat in two pieces. A flow guiding groove (8) is formed between the fin (6) and the outer cover (7), and an air inlet (81) and an air outlet (82) are respectively formed at the front end and the rear end of the flow guiding groove (8), and The diameter of the air inlet (81) is larger than the diameter of the air outlet (82), and the groove diameter of the guide groove (8) is gradually bundled from the air inlet (81) to the air outlet (82), and is restored to the lampshade (2) The reflective layer (9) is coated or sprayed on the inner wall.

Accordingly, when assembling, please refer to the third figure, the lamp socket (1) of the light-emitting diode lamp for a vehicle of the present invention is combined with a power connector, and when lighting is to be implemented, The power connector is turned on to drive the light emitting diode (3) to emit light. At this time, the plurality of light emitting diodes (3) are evenly arranged in a 360-degree group by the present invention. (4) The design enables the plurality of light-emitting diodes (3) to illuminate the light through the lampshade (2) from 360 degrees in various directions to increase the uniformity of light emitted by the light-emitting diode lamp of the present invention. And the illumination range, please refer to the fourth figure, and the light-emitting diode (3) projected on the reflective layer (9) can be further illuminated by the reflective layer (9) provided on the inner wall of the lamp cover (2). It is reflected so that the light emitted by the light-emitting diode (3) is effectively projected toward the desired illumination direction, so that the light emitted by the light-emitting diode (3) sufficiently provides illumination.

Furthermore, the thermal energy generated when the plurality of light-emitting diodes (3) are activated is quickly assembled on the three-dimensional assembly (4) by coating or spraying a heat-conducting layer (5) on the peripheral wall of the three-dimensional assembly (4). The plurality of light-emitting diodes (3) emit heat energy to be dissipated to prevent heat generated by the operation of the light-emitting diode (3) from being accumulated on the three-dimensional assembly (4) of the light-emitting diode (3), and Conducted by the connecting member (41) assembled by the three-dimensional assembly (4) to further transmit the thermal energy to the lamp holder (1) by the action of the light-emitting diode (3), and the outer peripheral wall ring of the lamp holder (1) The heat dissipating fins (6) are arranged such that the heat generated by the action of the light emitting diodes (3) is dissipated via the heat dissipating fins (6), especially when the LED light emitting diode lamp of the invention is used as a lamp At the same time, as the vehicle travels, the LED light-emitting diode lamp of the present invention assembled in front of the vehicle body will greet the blowing airflow, which is the diversion flow formed by the heat radiating fins (6) and the outer cover (7). The air inlet (81) of the slot (8) enters the flow guiding groove (8), and then flows out from the air outlet (82) of the guiding groove (8) to form forced convection, and the diameter of the air inlet (81) is larger than Air outlet (82 The diameter of the guide groove, and the groove diameter of the guide groove (8) is gradually tapered from the air inlet (81) to the air outlet (82) to improve the shape of the venturi (8). The flow rate of the airflow (81) flowing out through the guide groove (8) to the air outlet (82), so that the heat sink fins can be quickly flowed through the airflow on the circumferential side of the heat dissipation fins (6). The heat generated is quickly taken away to improve the heat dissipation efficiency of the light-emitting diode lamp for a vehicle of the present invention.

Furthermore, please refer to FIG. 5, which is an embodiment of the LED light-emitting diode lamp for a vehicle of the present invention. The reflective layer (9) provided on the inner wall of the lampshade (2) can be used according to the application. It needs to be coated or sprayed on the upper position of the three-dimensional assembly (4). Thus, when the light-emitting diode (3) assembled in the three-dimensional assembly (4) emits light, the light projected upward is in the lampshade ( 2) Under the reflection of the upper reflective layer (9), it will be concentrated downwards to enhance the brightness of the light that is irradiated downwards to provide the use of street lamps, table lamps, etc., which need to increase the brightness of the lower illumination.

Please also refer to the sixth embodiment, which is a second embodiment of the illuminating diode lamp for a vehicle of the present invention. The reflective layer (9) provided on the inner wall of the lampshade (2) can also be coated or sprayed. The light is disposed at a position below the three-dimensional assembly (4). When the light-emitting diode (3) disposed in the three-dimensional assembly (4) emits light, the light projected downward is reflected on the lower reflective layer (9). Under the reflection, it will be concentrated upwards to enhance the brightness of the light that is illuminated upwards, thereby providing a stage lamp, a projection lamp, etc., which need to increase the brightness of the upper illumination.

Please also refer to the seventh and eighth figures, which are the third and fourth embodiments of the light-emitting diode lamp for a vehicle of the present invention, and the reflective layer (9) provided on the inner wall of the lampshade (2). It can be coated or sprayed on the left side of the three-dimensional assembly (4) [as shown in the seventh figure] or the right side (as shown in the eighth figure) according to the needs of use, so that when assembled in stereo When the light-emitting diode (3) of the assembly (4) emits light, the light projected to the left or right is reflected by the reflective layer (9) provided on the left or right of the lamp cover (2). Concentrate to the left or right to project, in order to enhance the brightness of the light to the left or right to provide a warning light that needs to increase the brightness of the left or right illumination.

The reflective layer (9) provided on the inner wall of the lampshade (2) may also be coated or sprayed on the rear side of the three-dimensional assembly (4) adjacent to the lampshade (2), where it is assembled in three-dimensional When the light-emitting diode (3) of the assembly (4) emits light, the light projected backward is Under the reflection of the rear reflective layer (9), it can be concentrated to the front to increase the brightness of the light that is radiated to the front, thereby providing a lamp or the like that needs to increase the brightness of the front illumination.

The foregoing embodiment or the drawings are not limited to the embodiment of the illuminating diode lamp for a vehicle of the present invention. Please refer to the ninth and tenth drawings together, and the illuminating diode lamp for a vehicle of the present invention can also be assembled. a plurality of assembly portions (4) in the space of the lamp holder (1) and the lamp cover (2) are provided, and a plurality of light-emitting diodes (3) are uniformly arranged on the plurality of group standing portions (4), and Further, a reflector cover (10) is further disposed on the circumference of each group of the vertical portions (4) to improve the luminous intensity of the light-emitting diodes (3) of the groups of the groups (4), which are generally known in the art. Appropriate changes or modifications are considered to be within the scope of the invention.

As can be seen from the above structures and embodiments, the present invention has the following advantages:

1. The illuminating diode lamp for a vehicle of the present invention utilizes a three-dimensional erected portion which is spherical or columnar, so that the plurality of illuminating diodes are uniformly disposed on the three-dimensional group at 360 degrees in various directions. When the light-emitting diode emits light, the light can be irradiated out from various angles, thereby achieving the effect of greatly improving the uniformity of light emitted by the light-emitting diode lamp of the vehicle and the irradiation range.

2. The light-emitting diode lamp for a vehicle of the present invention is coated or sprayed with a heat-conducting layer on a peripheral wall of a three-dimensional assembly of a light-emitting diode. Here, when the heat generated by the light-emitting diode is generated, the light can be borrowed. The heat conducting layer provided by the three-dimensional assembly unit rapidly dissipates the heat generated by the operation of the light-emitting diode to prevent high-temperature heat energy from being accumulated on the three-dimensional group of the light-emitting diode assembly, thereby effectively preventing the light from being emitted. The diode burns the damaged person due to high temperature.

3. The LED light-emitting diode lamp of the present invention is provided with a connecting member between the three-dimensional assembly of the light-emitting diode and the lamp holder, and the heat-dissipating fin is arranged on the outer peripheral wall of the lamp socket. The heat generated by the light-emitting diode of the three-dimensional group can be further utilized. The connecting member transmits the thermal energy to the lamp holder quickly, and is dissipated through the heat dissipating fins, so as to prevent the high temperature heat energy from being accumulated in the illuminating diode lamp of the vehicle, causing the illuminating diode and other electronic components to be burnt due to the high temperature. Damage and other conditions.

4. The illuminating diode lamp for a vehicle of the present invention is coated or sprayed with a reflective layer on the inner side wall of the lamp holder, and the reflective layer is disposed behind the three-dimensional assembly, above, below or left, as needed for use. At the right position, when the light-emitting diodes disposed in the three-dimensional group are illuminated, the brightness of the light toward the front, the bottom, the upper side, or the right and left sides can be increased under the reflection of the reflective layer. Here, to provide a luminaire that requires various illumination directions.

5. The illuminating diode lamp for a vehicle of the present invention is further characterized in that a heat sink fin of the lamp holder is covered with a cover to form a guide groove between the cover and the heat sink fin, so that when the vehicle of the present invention is used for illuminating When the diode lamp is used as a lamp, the air flow generated by the vehicle travels through the air inlet of the guide groove to the air outlet of the guide groove to form forced convection, and the heat dissipation fin is diverged. The heat source is taken away to improve the heat dissipation efficiency.

6. The light-emitting diode lamp for a vehicle of the present invention is such that the outer cover and the fin formed by the heat-dissipating fin have a diameter larger than that of the air outlet, and the groove diameter of the guide groove is gradually increased from the air inlet to the air outlet. The venturi tube shape design of the beam bundle can increase the flow velocity of the airflow flowing from the air inlet of the guide channel through the guide groove to the air outlet to further increase the heat dissipation efficiency of the heat dissipation fin.

7. The illuminating diode lamp for a vehicle according to the present invention is such that the fins are formed in a spiral shape, and the diameter of the air inlet of the guide groove is larger than the diameter of the air outlet, and the diameter of the guide groove is from the air inlet to the air outlet. The shape of the venturi tube of the gradual contraction is such that the airflow entering the guide groove is guided by the spiral fins, thereby increasing the flow rate of the airflow from the guide trough, and further improving the heat energy of the fins by the airflow. Together with the efficiency of the discharge.

In summary, the embodiments of the present invention can achieve the expected functions, and the specific structures disclosed therein have not been seen in similar products, nor have they been disclosed before the application, and have fully complied with the requirements and requirements of the Patent Law. If you apply for an invention patent in accordance with the law, you are welcome to review it and grant a patent.

(1)‧‧‧ lamp holder

(2) ‧‧‧shade

(3) ‧‧‧Lighting diodes

(4) ‧ ‧ ‧ Department

(41)‧‧‧Links

(5) ‧‧‧thermal layer

(6)‧‧‧Friction fins

(7) ‧‧‧ Cover

(8)‧‧‧Guide trough

(9) ‧‧‧reflective layer

Claims (10)

A light-emitting diode lamp for a vehicle is assembled in a vehicle body of a vehicle, and is provided with a lamp holder, and a three-dimensional assembly portion is connected to the lamp holder group, and a plurality of light-emitting diodes are arranged on the three-dimensional group vertical portion. And a plurality of heat dissipating fins are disposed on the outer peripheral wall of the lamp holder, and a cover is disposed on the outer cover of the heat dissipating fin, and a guiding groove is formed between the two heat dissipating fins and the outer cover, and the guiding trough is The end systems are each formed with an air inlet and an air outlet. The illuminating diode lamp for a vehicle according to the first aspect of the invention, wherein the air inlet of the guiding groove has a diameter larger than a diameter of the air outlet, and the diameter of the guiding groove is increased by the air inlet. The mouth gradually narrowed toward its outlet. The illuminating diode lamp for a vehicle according to the first aspect of the invention, wherein the heat dissipating fin is formed into one of a spiral shape or a straight shape. The illuminating diode lamp for a vehicle according to claim 1, wherein the peripheral wall of the three-dimensional assembly is further provided with a heat conducting layer. The illuminating diode lamp for a vehicle according to claim 1, wherein the three-dimensional assembly and the lamp holder are further provided with a connecting member. The illuminating diode lamp for a vehicle according to the first aspect of the invention, wherein the lamp holder further comprises a lamp cover, so that the three-dimensional assembly and the light-emitting diode are disposed in the space formed by the lamp holder and the lamp cover. in. The illuminating diode lamp for a vehicle according to claim 6, wherein the inner wall of the lampshade is further provided with a reflective layer. The illuminating diode lamp for a vehicle according to claim 7, wherein the reflective layer of the inner wall of the lampshade is located at one of the rear side, the upper side, the lower side, the left side or the right side of the three-dimensional group standing portion. The illuminating diode lamp for a vehicle according to the first aspect of the invention, wherein the lamp holder is connected to the three-dimensional group, and a plurality of light-emitting diodes are disposed in each of the plurality of three-dimensional group body. The illuminating diode lamp for a vehicle according to claim 9, wherein the circumference of each of the three-dimensional assembly portions is further covered with a reflection cover.