CN101749615A

CN101749615A - Energy-saving high-efficiency headlamp

Info

Publication number: CN101749615A
Application number: CN200810163198A
Authority: CN
Inventors: 潘冬君; 叶呈利
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-15
Filing date: 2008-12-15
Publication date: 2010-06-23

Abstract

The invention provides an energy-saving high-efficiency headlamp which comprises a lamp seat. LEDs are arranged in the lamp seat and are connected with a power supply. The energy-saving high-efficiency headlamp is characterized in that: the lamp seat comprises an outer-part lamp bowl, reflecting lamp petals of a parabolic surface are arranged in the lamp bowl, installation grooves are respectively arranged in the base parts of the lamp petals, the LEDs are arranged in the installation roves, and the top parts of the LEDs are right opposite to the wall faces of the lamp petals. In the technical scheme, the LEDs are placed at the optimal positions of the lamp petals of the parabolic surface (a curved surface), nearly most of light rays are reflected to form a light column, only a small part of light rays outside the parabolic surface are radiated out, the reflecting efficiency is high, the light column can irradiate long distance, and the brightness is obviously improved. Moreover, as a single LED light source emits limited light, one LED is respectively installed on each lamp petal to form multi-point light emitting, so as to effectively improve the entire emitting brightness, thereby achieving the design requirements of a vehicle lamp and a mining lamp. Meanwhile, as the multi-point light emitting is carried out, the heat radiation is quick, thereby solving the problem of difficult heat radiation of large-power LEDs.

Description

Energy-saving high-efficiency headlamp

Technical field

The present invention relates to headlamp, belong to lighting field.

Background technology

LED (light emitting diode) light source has numerous advantages, long as the life-span, antidetonation good, the high efficiency low energy consumption, harmful substance such as not mercurous, it is the solid state lighting equipment of new generation of energy-conserving and environment-protective, having some weak points only is exactly that illumination is too low, if according to car light (for example electric motor car, motorcycle and mine lamp etc.), it is preceding according to demand to be difficult to satisfy night safe driving or dark operation before making.Existing LED illuminating lamp, exist following defective: the one, utilize lamp bowl optically focused to throw light on, lamp bowl optically focused has certain advantage, as simple installation, with low cost, but the wide part that it sends directly radiate, have only sub-fraction after the reflection of lamp bowl, to be gathered into light beam, because LED has unidirectional photism, luminous point and the lamp the rim of a bowl both sides angle of supposing it are 70 °, its light of reflecting is the light around beyond 70 ° of luminous point and the lamp the rim of a bowl both sides angles so, and middle 70 ° of forceful rays radiate, and this radiant light impinges upon closely intraoral illumination and also still can, behind certain distance, will weaken very soon, thus its illumination a little less than; The 2nd, the power of increase LED, lifting luminous intensity, this also is imperative, though at present its luminous intensity constantly promote, power is also in continuous increase, but after power increases, its cost can increase substantially, its heating also can acutely strengthen after power increased simultaneously, though LED is a cold light, but it also can produce certain heat, even heat is well below other illuminator, but its various materials can be unable to undergo the test of high temperature, also are one of current main difficult problems so solve the heat radiation of great power LED; The 3rd, bodily form size, as vehicle or mine lamp headlamp tool, its bodily form size is also very important, and improving illumination only according to accelerating is not enough, too big can't put into some certain location the inside.

Summary of the invention

The objective of the invention is provides a kind of change radius to become the reflection light beam in order to overcome the shortcoming that prior art exists, and reflection light beam irradiation distance is far away, is fit to the preceding as requested of car light; And with the concentrated reflection of each single light beam, multipath reflection, to improve brightness of illumination; It is little to reach volume simultaneously, and rapid heat dissipation is applicable to the energy-saving high-efficiency headlamp of all kinds of lighting requirements.

The technical scheme of energy-saving high-efficiency headlamp of the present invention is: comprise lamp socket, LED is installed in the lamp socket, each LED joining power, it is characterized in that described lamp socket comprises the external modulation bowl, paraboloidal reflector lamp lobe is installed in the lamp bowl, mounting groove is all arranged in the base portion of each lamp lobe, a LED is installed in the mounting groove, the top of each LED faces the wall of lamp lobe.

Energy-saving high-efficiency headlamp of the present invention, LED is placed on the optimum position of parabola (curved surface) lamp lobe, almost the light with the overwhelming majority has all carried out reflecting to form light beam, have only small part parabola light in addition just to radiate, the reflector efficiency height, and light beam can shine larger distance, and brightness significantly improves; In addition, because that single led light source sends is only limited, after 1 LED is installed on each lamp lobe, the formation multiple spot is luminous, has effectively improved whole luminosity, reaches the designing requirement of car light and mine lamp, the luminous rapid heat dissipation of multiple spot has simultaneously solved the problem of great power LED cooling difficulty thus.

Energy-saving high-efficiency headlamp of the present invention, the parabolic center line of its described lamp lobe and the central vertical line of LED intersect at a right angle, and give full play to catoptrical effect.Its described lamp lobe becomes circumferential arrangement around the center of lamp bowl, makes it to concentrate the reflection back to form an illumination center, promptly single little light beam is assembled a big light beam, has increased irradiated area, thereby has improved illumination.The circumferential arrangement of its described lamp lobe in the lamp bowl is more than two circles or two enclose, light beam to be carried out reflecting in the multiset, further improves illumination, and volume is little, save the space, be suitable for all kinds of illuminating equipment installation requirements, also can be according to the quantity of the big or small free adjustment lamp lobe of institute installation site.Its described lamp lobe is that plastic material or metal material are made.

Description of drawings

Fig. 1 is that the master of energy-saving high-efficiency headlamp of the present invention looks schematic diagram;

Fig. 2 is a single LED illumination schematic diagram of energy-saving high-efficiency headlamp of the present invention;

Fig. 3 is that the A-A of Fig. 1 is to cross-sectional schematic;

Fig. 4 is the internal layer lamp lobe schematic diagram of Fig. 1;

Fig. 5 is the outer lamp lobe schematic diagram of Fig. 1.

The specific embodiment

Energy-saving high-efficiency headlamp of the present invention, as Fig. 1-shown in Figure 5, comprise lamp socket, LED (light emitting diode) is installed in the lamp socket, and each LED joining power is characterized in that described lamp socket comprises external modulation bowl 1, paraboloidal reflector lamp lobe 2 is installed in the lamp bowl 1, mounting groove 25 is all arranged in the base portion of each lamp lobe 2, a LED3 is installed in the mounting groove 25, the top 31 of each LED3 faces the wall of lamp lobe 2.The technical program is placed on LED3 the optimum position of parabolic lamp lobe 2, almost the light with the overwhelming majority has all carried out reflecting to form light beam, have only small part parabola light in addition just to radiate, as shown in Figure 2, the reflector efficiency height, and light beam can shine larger distance, and brightness significantly improves; In addition, because that single led light source sends is only limited, after 1 LED (light emitting diode) was installed on each lamp lobe, it was luminous to form multiple spot, has effectively improved luminosity, and the luminous rapid heat dissipation of multiple spot has simultaneously solved the problem of great power LED cooling difficulty thus.The parabolic center line 21 of its described lamp lobe 2 intersects at a right angle with the central vertical line 32 of LED3, as shown in Figure 2, gives full play to catoptrical effect.Its described lamp lobe 2 makes it to concentrate the reflection back to form an illumination center around 11 one-tenth circumferential arrangement in center of lamp bowl 1, promptly single little light beam is assembled a big light beam, has increased irradiated area, thereby has improved illumination.The circumferential arrangement of its described lamp lobe 2 in lamp bowl 1 is more than two circles or two enclose, light beam is carried out reflecting in the multiset, further improve illumination, and volume is little, save the space, be suitable for all kinds of illuminating equipment installation requirements, also can be according to the quantity of the big or small free adjustment lamp lobe of institute installation site.Its described lamp lobe 2 is that plastic material or metal material are made.Pass through the combination of above multiple scheme, improved illumination greatly.Along with the luminous flux lifting of LED, quality of lighting is also constantly progressive, and driving at night or other operation have been played certain safety guarantee effect, and especially the headlamp to electric bicycle has carried out once upgrading.

Claims

1. energy-saving high-efficiency headlamp, comprise lamp socket, LED is installed in the lamp socket, each LED joining power, it is characterized in that described lamp socket comprises external modulation bowl (1), paraboloidal reflector lamp lobe (2) is installed in the lamp bowl (1), mounting groove (25) is all arranged in the base portion of each lamp lobe (2), a LED (3) is installed in the mounting groove (25), and the top (31) of each LED (3) faces the wall of lamp lobe (2).

2. energy-saving high-efficiency headlamp as claimed in claim 1 is characterized in that the parabolic center line (21) of described lamp lobe (2) and the central vertical line (32) of LED (3) intersect at a right angle.

3. energy-saving high-efficiency headlamp as claimed in claim 1 is characterized in that described lamp lobe (2) becomes circumferential arrangement around the center (11) of lamp bowl (1).

4. energy-saving high-efficiency headlamp as claimed in claim 3 is characterized in that the circumferential arrangement of described lamp lobe (2) in lamp bowl (1) is more than two circles or two enclose.

5. energy-saving high-efficiency headlamp as claimed in claim 1 is characterized in that described lamp lobe (2) is that plastic material or metal material are made.