CN105841041B - A kind of LED Mirror front lamps - Google Patents

Abstract

The invention discloses a kind of LED Mirror front lamps,It includes LED spotlight,LED spotlight is by lamp cap,Lamp housing,Radiator,Diffuser,Driving power and LED light source board composition,Lamp cap is installed on the bottom of lamp housing,Driving power is installed in lamp housing and is electrically connected with lamp cap,Lamp housing,Radiator,Diffuser is sequentially connected,Lamp housing is light transmission lamp housing,Radiator is in hollow cup-like structure,Open top,Bottom has a mounting platform,LED light source board is divided into,Lower two pieces of light source board,Upper light source board is made of the upper wiring board being loaded on the upper surface of mounting platform and the first LED lamp bead being installed on upper wiring board,The light that first LED lamp bead is sent out is projected by diffuser,Lower light source board is made of the lower wiring board being loaded on the lower surface of mounting platform and the second LED lamp bead being installed on lower wiring board,The light that second LED lamp bead is sent out is projected by lamp housing；Advantage is that the structure of used LED spotlight is simple, and front and back can shine, and effectively enhance lighting effect and decorative effect.

Description

A kind of LED mirror headlight

technical field

The invention relates to an LED lamp, in particular to an LED mirror headlight.

Background technique

The mirror front light is a light installed in front of the mirror, which not only enables people to see the figure in the mirror more clearly, but also has the effect of beautiful decoration. The light sources used in traditional mirror headlights are mainly halogen lamps and fluorescent lamps. Halogen lamps are a kind of incandescent lamps with low luminous efficiency and short life; while fluorescent lamps have environmental protection problems. With the emergence of LED light sources, LED light sources have gradually replaced halogen lamps and fluorescent lamps due to their energy saving, environmental protection and long life.

The existing LED light sources used as mirror headlights are generally LED spotlights. However, because the light of the currently used LED spotlights is only emitted from one light-emitting surface, and there is no light on the back of the light-emitting surface, it can be compared with the traditional halogen lamp or fluorescent lamp. Compared with the 360-degree luminous mirror headlights, the lighting effect of the mirror headlights using LED spotlights is insufficient, and the decorative effect is not good.

Contents of the invention

The technical problem to be solved by the present invention is to provide an LED mirror headlight, the LED spotlight adopted in it has a simple structure, and both the front and the back can emit light, thereby effectively enhancing the lighting effect and the decorative effect.

The technical solution adopted by the present invention to solve the above-mentioned technical problems is: an LED mirror headlight, including an LED spotlight, and the LED spotlight is composed of a lamp holder, a lamp housing, a radiator, a translucent cover, a driving power supply and the The drive power supply is electrically connected to the LED light source board, the lamp holder is installed on the bottom of the lamp housing, the driving power supply is installed in the lamp housing and is electrically connected to the lamp holder, the The top edge of the lamp housing is connected to the bottom edge of the radiator, and the top edge of the radiator is connected to the edge of the light-transmitting cover. It is characterized in that: the lamp housing is a light-transmitting lamp housing , the heat sink has a hollow cup-shaped structure, the top of the heat sink is open, and the bottom of the heat sink has a mounting platform, and the LED light source board is divided into an upper light source board and a lower light source board Two pieces, the upper light source board is composed of an upper circuit board installed on the upper surface of the installation platform and a first LED lamp bead installed on the upper circuit board, and the first LED lamp The light emitted by the bead is emitted through the light-transmitting cover to realize the front lighting of the LED spotlight, and the lower light source board is composed of the lower circuit board installed on the lower surface of the installation platform and the lower circuit board installed on the The light emitted by the second LED lamp bead is emitted through the lamp housing to realize the backside luminescence of the LED spotlight.

The light-transmitting cover is a Fresnel lens, and a light-reflecting face ring is arranged between the light-transmitting cover and the upper light source plate, and the central part of the light-reflecting face ring is a hollow truncated inverted The wide end and the narrow end of the conical structure are both open, and the edge portion of the light reflection face ring is a plane formed by extending radially outward from the wide end opening edge of the central part of the light reflection face ring. The peripheral wall of the edge portion of the reflective face ring is connected to the inner peripheral wall of the heat sink, the narrow end opening edge of the central part of the light reflective face ring is in contact with the upper surface of the upper circuit board, and the The first LED lamp bead is located in the central part of the light reflecting bead, most of the light emitted by the first LED lamp bead is directly emitted through the light-transmitting cover, and a small part of the light passes through After the reflection of the inner surface of the central part of the light reflective bezel, part of the reflected light is directly emitted through the transparent cover, and the remaining part of the reflected light is between the inner surface of the transparent cover and the light reflective surface. After being reflected back and forth multiple times between the edge parts of the circle, it is emitted through the light-transmitting cover. Here, the outer surface of the Fresnel lens is a smooth surface, and the inner surface is a series of zigzag grooves to form concentric circles, and the center is an elliptical arc. The Fresnel lens is equivalent to a planar condenser lens, which can Converge the light into a uniform light spot; the present invention utilizes the cooperation of the Fresnel lens and the light reflective bezel, so that the light that is not directly emitted through the light-transmitting cover passes through the reflection of the inner surface of the central part of the light reflective bezel and part of the reflected light The remaining part of the reflected light is directly emitted through the light-transmitting cover and reflected back and forth between the inner surface of the light-transmitting cover and the edge of the light-reflecting bezel for many times before being emitted through the light-transmitting cover, thereby obtaining a uniform spot effect.

The positions of the first LED lamp bead and the second LED lamp bead are staggered, which can effectively reduce the thermal influence between the upper light source board and the lower light source board.

The lamp housing is composed of a hollow cylindrical structural part and a hollow trumpet-shaped structural part, the lamp cap is installed on the bottom of the cylindrical structural part, and the top of the cylindrical structural part The opening edge is connected with the narrow end opening edge of the horn-shaped structure part, the wide end opening edge of the horn-shaped structure part is connected with the bottom edge of the heat sink, and the driving power is installed on the In the cylindrical structure part, the inner wall of the trumpet-shaped structure part is uniformly provided with a plurality of screw holes in the axial direction, and the screws are used to pass through the upper circuit board, the installation platform, and the lower circuit. The plate is fixedly connected with the said screw hole post. The structure of the lamp housing is simple, and the upper circuit board, the installation platform and the lower circuit board can be conveniently fixed on the screw hole column by only using screws to form an integral structure, and the connection is convenient and reliable.

The upper circuit board is in close contact with the upper surface of the installation platform, and the lower circuit board is in close contact with the lower surface of the installation platform; the upper circuit board and the The lower circuit boards are made of metal base circuit boards. Here, the upper circuit board is in contact with the upper surface of the installation platform, and the lower circuit board is in contact with the lower surface of the installation platform, so that the contact area between the upper circuit board and the lower circuit board and the radiator can be enlarged. , it is beneficial to transfer the heat of the first LED lamp bead and the second LED lamp bead to the radiator; both the upper circuit board and the lower circuit board are made of metal-based circuit boards, which is beneficial to improve the heat dissipation of the first LED lamp bead and the second LED lamp bead. For heat dissipation, copper-based circuit boards, aluminum-based circuit boards, etc. can be used for metal-based circuit boards.

An LED mirror headlight, comprising an LED spotlight, the LED spotlight is composed of a lamp cap, a lamp housing, a radiator, a light-transmitting cover, a driving power supply, and an LED light source board electrically connected to the driving power supply. The lamp holder is installed on the bottom of the lamp housing, the driving power is installed in the lamp housing and electrically connected with the lamp holder, the top edge of the lamp housing is connected to the radiator The bottom edge is connected, and the top edge of the heat sink is connected to the edge of the light-transmitting cover. It is characterized in that: the lamp housing is a light-transmitting lamp housing, and the heat sink is a hollow cup-shaped structure. Both the top and the bottom of the heat sink are open, and the LED light source board is composed of a circuit board and a first LED light bead mounted on the upper surface of the circuit board and mounted on the lower surface of the circuit board. The circuit board is connected to the bottom of the heat sink, and the light emitted by the first LED lamp is emitted through the light-transmitting cover to realize the LED spotlight The front side of the LED spotlight emits light, and the light emitted by the second LED lamp bead is emitted through the lamp housing to realize the backside light emission of the LED spotlight.

The light-transmitting cover is a Fresnel lens, the opening edge of the bottom of the radiator extends radially inward to form a fixed ring integrally, and a light-reflecting surface is arranged between the light-transmitting cover and the fixing ring ring, the center part of the light reflecting face ring is a hollow truncated inverted conical structure and the wide end and the narrow end are both open, and the edge part of the light reflecting face ring is the central part of the light reflecting face ring The wide-end opening edge extends radially outward to form a plane, the peripheral wall of the edge portion of the light reflective face ring is connected with the inner peripheral wall of the heat sink, and the narrow central portion of the light reflective face ring The edge of the end opening abuts against the upper surface of the fixing ring, and the first LED lamp bead is located in the central part of the light reflecting bead, and the light emitted by the first LED lamp bead is large Part of the light is directly emitted through the translucent cover, and a small part of the light is reflected by the inner surface of the central part of the light reflecting bezel, and part of the reflected light is directly emitted through the translucent cover while the remaining part of the reflected light The light is reflected back and forth between the inner surface of the light-transmitting cover and the edge of the light-reflecting bead for many times before being emitted through the light-transmitting cover. Here, the outer surface of the Fresnel lens is a smooth surface, and the inner surface is a series of zigzag grooves to form concentric circles, and the center is an elliptical arc. The Fresnel lens is equivalent to a planar condenser lens, which can Converge the light into a uniform light spot; the present invention utilizes the cooperation of the Fresnel lens and the light reflective bezel, so that the light that is not directly emitted through the light-transmitting cover passes through the reflection of the inner surface of the central part of the light reflective bezel and part of the reflected light The remaining part of the reflected light is directly emitted through the light-transmitting cover and reflected back and forth between the inner surface of the light-transmitting cover and the edge of the light-reflecting bezel for many times before being emitted through the light-transmitting cover, thereby obtaining a uniform spot effect.

The positions of the first LED lamp bead and the second LED lamp bead are staggered, which can effectively reduce the thermal influence between the upper surface and the lower surface of the circuit board.

The lamp housing is composed of a hollow cylindrical structural part and a hollow trumpet-shaped structural part, the lamp cap is installed on the bottom of the cylindrical structural part, and the top of the cylindrical structural part The opening edge is connected with the narrow end opening edge of the horn-shaped structure part, the wide end opening edge of the horn-shaped structure part is connected with the bottom edge of the heat sink, and the driving power is installed on the In the cylindrical structure part, the inner wall of the trumpet-shaped structure part is uniformly provided with a plurality of screw hole columns along the axial direction, and the screws are used to pass through the fixed ring, the circuit board and the screw hole columns Fixed connection. The structure of the lamp housing is simple, and the heat sink and the circuit board can be conveniently fixed on the screw hole column by only using screws to form an integral structure, and the connection is convenient and reliable.

The circuit board is a metal-based double-sided circuit board. Here, the metal-based double-sided circuit board is beneficial to improve the heat dissipation of the first LED lamp bead and the second LED lamp bead, and the metal-based double-sided circuit board can be a copper-based double-sided circuit board or an aluminum-based double-sided circuit board. Wait.

Compared with the prior art, the present invention has the advantages of:

1) The LED spotlight used in the LED mirror headlight of the first structure uses two light source boards, namely the upper light source board and the lower light source board. Only one side of the lower circuit board is equipped with the second LED lamp bead, and both the upper light source board and the lower light source board emit light from one side. The transmission of the light lamp shell makes this LED mirror headlight not only produce a uniform light spot in front of the mirror, but also emit light around the lampshade, which enhances the luminous effect.

2) The LED spotlights used in the LED mirror headlights of the second structure only use one LED light source board. The circuit board of the LED light source board is a double-sided circuit board. Install the second LED lamp bead, so that the LED light source board can emit light on both sides, that is, the light of this LED spotlight can not only be emitted through the upper light-transmitting cover, but also can be transmitted through the lower light-transmitting lamp housing, so that this LED The mirror headlight can not only produce a uniform light spot in front of the mirror, but also emit light around the lampshade, which enhances the luminous effect.

3) The structure of the radiator used in the LED spotlights used in the LED mirror headlights of the two structures is simple, and the heat generated by the first LED lamp bead and the second LED lamp bead can be transferred to the peripheral wall of the radiator and dissipated. To the surrounding environment, the cooling effect is good.

4) There is no need to remove the original lamp holder and lampshade for the LED mirror headlights of the two structures. Instead, the traditional halogen lamps are directly replaced by LED spotlights and installed in the same lampshade to be electrically connected to the lamp holder, which saves resources.

Description of drawings

Fig. 1 is the structural representation of the LED mirror headlight of embodiment one;

Fig. 2 is the structural representation of the LED spotlight that the LED mirror headlight of embodiment one adopts;

Fig. 3 is the sectional structure schematic diagram of the LED spotlight that the LED mirror headlight of embodiment one adopts;

Fig. 4 is the exploded structure schematic diagram of the LED spotlight that the LED mirror headlight of embodiment one adopts;

Fig. 5 is a schematic cross-sectional structure diagram of the LED spotlight used in the LED mirror headlight of the second embodiment.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Embodiment one:

A kind of LED mirror headlight proposed in this embodiment, as shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, it includes a mount 100 connected to the wall, a connecting support rod 101 arranged on the mount 100, A plurality of lighting lamps 102 arranged on the connecting support rod 101. The lighting lamp 102 includes a lamp holder 103, a lampshade 104 and an LED spotlight 105 arranged in the lampshade 104 and electrically connected with the lamp holder 103. The lampshade 104 is a light-transmitting lampshade , LED spotlight 105 is made up of lamp holder 1, lamp housing 2, radiator 3, light-transmitting cover 4, driving power supply 5 and the LED light source board electrically connected with driving power supply 5, and lamp holder 1 is installed on the bottom of lamp housing 2, drives The power supply 5 is installed in the lamp housing 2 and is electrically connected with the lamp holder 1, the top edge of the lamp housing 2 is connected with the bottom edge of the radiator 3, the top edge of the radiator 3 is connected with the edge of the translucent cover 4, and the lamp housing 2 is transparent The radiator 3 is a hollow cup-shaped structure, the top of the wide end of the radiator 3 is open, and the bottom of the narrow end of the radiator 3 has a mounting platform 31. The LED light source board is divided into two parts: an upper light source board and a lower light source board. block, the upper light source board is composed of an upper circuit board 61 installed on the upper surface of the installation platform 31 and a first LED lamp bead 62 installed on the upper circuit board 61, the first LED lamp bead 62 faces the light-transmitting cover 4, the second The light emitted by an LED lamp bead 62 is emitted through the light-transmitting cover 4 to realize the front lighting of the LED spotlight 105. The lower light source board is composed of the lower circuit board 63 installed on the lower surface of the installation platform 31 and the lower circuit board 63 installed on the lower circuit board 63. The second LED lamp bead 64 is composed of the second LED lamp bead 64 facing the lamp housing 2 , and the light emitted by the second LED lamp bead 64 is emitted through the lamp housing 2 to realize the backside lighting of the LED spotlight 105 . This LED spotlight 105 adopts two light source boards, an upper light source board and a lower light source board. The upper circuit board 61 of the upper light source board has only one side with the first LED lamp bead 62 installed, and the lower circuit board 63 of the lower light source board has only one side. The second LED lamp bead 64 is installed, and both the upper light source board and the lower light source board emit light from one side, but since the upper circuit board 61 is installed on the upper surface of the installation platform 31 at the bottom of the radiator 3 and the lower circuit board 63 is installed on the The bottom of the radiator 3 is installed on the lower surface of the platform 31, so the light of this LED spotlight 105 can not only be emitted through the upper light-transmitting cover 4, but also can be transmitted through the lower light-transmitting lamp housing. The LED mirror headlight of the lamp 105 can not only produce uniform light spot of the spotlight in front of the mirror, but also emit light around the lampshade 104, which enhances the luminous effect; the structure of the radiator 3 adopted by the LED spotlight 105 is simple, And only the upper light source board and the lower light source board are used to realize the front and back lighting of the LED spotlight 105, so that the structure of the LED spotlight 105 is simple and the lighting effect is good; the upper circuit board 61 is installed on the bottom of the radiator 3 On the upper surface of the installation platform 31, and the lower circuit board 63 is installed on the lower surface of the installation platform 31 at the bottom of the radiator 3, the radiator 3 can generate the first LED lamp bead 62 and the second LED lamp bead 64 The heat is transferred to the peripheral wall of the radiator 3 and dissipated to the surrounding environment, and the heat dissipation effect is good; the LED mirror headlight using this LED spotlight 105 does not need to dismantle the original lamp holder 103 and lampshade 104, that is, the existing LED mirror The traditional halogen lamp that headlight adopts is installed in lampshade 104 and is electrically connected with lamp holder 103, and the present invention adopts LED spotlight 105 to replace traditional halogen lamp and is installed in same lampshade 104 and is electrically connected with lamp holder 103.

In this specific embodiment, the light-transmitting cover 4 is a Fresnel lens, and a light-reflecting bezel 7 is arranged between the light-transmitting cover 4 and the upper light source plate. The central part 71 of the light-reflecting bezel 7 is a hollow truncated inverted Conical structure and wide end and narrow end all open, and the edge portion 72 of light reflection face ring 7 is the plane that the wide end opening edge of the center part 71 of light reflection face ring 7 extends outward radially, and the light reflection face ring 7 The peripheral wall of the edge portion 72 is connected to the inner peripheral wall of the heat sink 3, the narrow end opening edge of the central portion 71 of the light reflection bezel 7 abuts against the upper surface of the upper circuit board 61, and the first LED lamp bead 62 is positioned on the light reflection surface. In the central part 71 of the bezel 7, most of the light emitted by the first LED lamp bead 62 is directly emitted through the light-transmitting cover 4, and a small part of the light is reflected by the inner surface of the central part 71 of the reflective bezel 7. A part of the reflected light is directly emitted through the light-transmitting cover 4, and the remaining part of the reflected light is directed to the inner surface of the light-transmitting cover 4 and then reflected to the edge portion 72 of the light-reflecting bezel 7 to form a connection between the inner surface of the light-transmitting cover 4 and the light. The edge portion 72 of the reflective ring 7 is reflected back and forth for many times and then emitted through the light-transmitting cover 4 . Here, the outer surface of the Fresnel lens is a smooth surface, and the inner surface is a series of zigzag grooves to form concentric circles, and the center is an elliptical arc. The Fresnel lens is equivalent to a planar condenser lens, which can Converge the light into a uniform spot; the present invention utilizes the cooperation of the Fresnel lens and the light reflective bezel 7 to make the light that is not directly emitted through the light-transmitting cover 4 be reflected by the inner surface of the central part 71 of the light reflective bezel 7 The latter part of the reflected light is directly emitted through the light-transmitting cover 4 and the remaining part of the reflected light is reflected back and forth between the inner surface of the light-transmitting cover 4 and the edge portion 72 of the light-reflecting ring 7 multiple times before being emitted through the light-transmitting cover 4, thereby Get a uniform flare effect.

In this specific embodiment, the positions of the first LED light bead 62 and the second LED light bead 64 are staggered from each other, which can effectively reduce the thermal influence between the upper light source board and the lower light source board.

In this specific embodiment, the lamp housing 2 is composed of a hollow cylindrical structural part 21 and a hollow horn-shaped structural part 22 that are integrally arranged. The lamp cap 1 is installed on the bottom of the cylindrical structural part 21, and the cylindrical structural part 21 The top opening edge is connected with the narrow end opening edge of the horn-shaped structure part 22, the wide-end opening edge of the horn-shaped structure part 22 is connected with the narrow end bottom edge of the heat sink 3, and the driving power supply 5 is installed in the cylindrical structure part 21, and the horn The inner wall of the trumpet-shaped structural part 22 is uniformly provided with a plurality of screw holes 23 along the axial direction, and the top of the screw hole columns 23 is flush with the wide end port of the trumpet-shaped structural part 22, which is used for the driving power supply 5 under the premise of ensuring a compact structure. Enough accommodation space is provided, and screws 24 are used to pass through the upper circuit board 61 , the installation platform 31 , and the lower circuit board 63 to be fixedly connected to the threaded column 23 . The lamp housing 2 has a simple structure, and the upper circuit board 61 , the installation platform 31 , and the lower circuit board 63 can be easily fixed on the threaded post 23 by using the screws 24 to form an integral structure, and the connection is convenient and reliable.

In this specific embodiment, the upper circuit board 61 is in close contact with the upper surface of the installation platform 31, and the lower circuit board 63 is in close contact with the lower surface of the installation platform 31; both the upper circuit board 61 and the lower circuit board 63 use Metal base circuit board. Here, the upper circuit board 61 is in contact with the upper surface of the installation platform 31, and the lower circuit board 63 is in contact with the lower surface of the installation platform 31, so that the upper circuit board 61 and the lower circuit board 63 can be enlarged. The contact area with the radiator 3 is conducive to transferring the heat of the first LED lamp bead 62 and the second LED lamp bead 64 to the radiator 3; both the upper circuit board 61 and the lower circuit board 63 adopt metal-based circuit boards, which is beneficial to improve For the heat dissipation of the first LED lamp bead 62 and the second LED lamp bead 64 , the metal base circuit board can be copper base circuit board, aluminum base circuit board and the like.

In this specific embodiment, there are one or more first LED lamp beads 62, and the plurality of first LED lamp beads 62 are installed on the upper circuit board 61 in series or series-parallel manner, and all the first LED lamp beads 62 are located on the light In the central part 71 of the reflector 7 , there are one or more second LED lamp beads 64 , and the plurality of second LED lamp beads 64 are installed on the lower circuit board 63 in series or series-parallel manner. The first LED lamp beads 62 and the second LED lamp beads 64 are generally SMD lamp beads or COB lamp beads or a combination of both.

Embodiment two:

A kind of LED mirror headlight that this embodiment proposes, as shown in Figure 5, it comprises the mounting base 100 that is connected with the wall, the connecting support rod 101 that is arranged on the mounting base 100, the multiple connecting rod that is arranged on the connecting support rod 101 Only the lighting lamp 102, the lighting lamp 102 includes a lamp holder 103, a lampshade 104 and an LED spotlight 105 which is arranged in the lampshade 104 and is electrically connected with the lamp holder 103. The transparent cover 4, the driving power supply 5 and the LED light source board electrically connected with the driving power supply 5 are composed. The lamp holder 1 is installed on the bottom of the lamp housing 2, and the driving power supply 5 is installed in the lamp housing 2 and is electrically connected with the lamp holder 1. The lamp housing The top edge of the radiator 2 is connected to the bottom edge of the radiator 3, and the top edge of the radiator 3 is connected to the edge of the light-transmitting cover 4. The lamp housing 2 is a light-transmitting lamp housing, and the radiator 3 is a hollow cup-shaped structure. The top of the wide end and the bottom of the narrow end are all open, and the LED light source board consists of a circuit board 68 and a first LED lamp bead 62 installed on the upper surface of the circuit board 68 and a second LED lamp installed on the lower surface of the circuit board 68. Composed of beads 64, the circuit board 68 is connected to the bottom of the radiator 3, the first LED lamp bead 62 faces the light-transmitting cover 4, and the light emitted by the first LED light bead 62 is emitted through the light-transmitting cover 4 to realize the front lighting of the LED spotlight 105 , the second LED lamp bead 64 faces the lamp housing 2 , and the light emitted by the second LED lamp bead 64 is emitted through the lamp housing 2 to realize the backside lighting of the LED spotlight 105 . This LED spotlight 105 adopts an LED light source board, the first LED lamp bead 62 is installed on the upper surface of the circuit board 68 of the LED light source board, and the second LED lamp bead 62 is installed on the lower surface of the circuit board 68 of the LED light source board. Lamp beads 64 make the LED light source board capable of emitting light on both sides, that is, the light of this LED spotlight 105 can not only be emitted through the upper light-transmitting cover 4, but also can be transmitted through the lower light-transmitting lamp housing. The LED mirror headlight of the lamp 105 not only can produce a uniform light spot of the spotlight in front of the mirror, but also emits light around the lampshade 104, which enhances the luminous effect; the structure of the radiator 3 adopted by the LED spotlight 105 is simple, And only the first LED lamp bead 62 is installed on the upper surface of the circuit board 68 of the LED light source board and the second LED lamp bead 64 is installed on the lower surface to realize the front and back lighting of the LED spotlight 105, so that this LED spotlight The structure of 105 is simple and the lighting effect is good; the periphery of the circuit board 68 of the LED light source board is connected with the bottom of the radiator 3, and the radiator 3 can transfer the heat generated by the first LED lamp bead 62 and the second LED lamp bead 64 to The circumferential wall of the radiator 3 is distributed to the surrounding environment, and the heat dissipation effect is good; the LED mirror headlight using this LED spotlight 105 does not need to remove the original lamp holder 103 and the lampshade 104, that is, the existing LED mirror headlight adopts The traditional halogen lamp is installed in the lampshade 104 and electrically connected with the lamp holder 103 . The present invention adopts the LED spotlight 105 to replace the traditional halogen lamp and is installed in the same lampshade 104 and electrically connected with the lamp holder 103 .

In this specific embodiment, the translucent cover 4 is a Fresnel lens, the edge of the bottom opening of the radiator 3 extends radially inward to form a fixed ring 32 integrally, and a light reflecting surface is arranged between the translucent cover 4 and the fixed ring 32 Circle 7, the central portion 71 of the light reflection surface circle 7 is a hollow truncated inverted conical structure and the wide end and the narrow end are all open, and the edge portion 72 of the light reflection surface circle 7 is the width of the center portion 71 of the light reflection surface circle 7. The plane formed by the outward radial extension of the edge of the end opening, the peripheral wall of the edge portion 72 of the light reflecting face ring 7 is connected with the inner peripheral wall of the radiator 3, and the narrow end opening edge of the central part 71 of the light reflecting face ring 7 is connected with the fixed ring The upper surface of 32 abuts, and the first LED lamp bead 62 is located in the central part 71 of the light reflecting bezel 7, most of the light emitted by the first LED lamp bead 62 is directly emitted through the light-transmitting cover 4, and a small part After the light is reflected by the inner surface of the central part 71 of the light reflective bezel 7, a part of the reflected light is directly emitted through the translucent cover 4, and the remaining part of the reflected light is directed to the inner surface of the translucent cover 4 and then reflected to the inner surface of the light reflective bezel 7. The light formed on the edge portion 72 is reflected back and forth between the inner surface of the light-transmitting cover 4 and the edge portion 72 of the light-reflecting bezel 7 multiple times before being emitted through the light-transmitting cover 4 . Here, the outer surface of the Fresnel lens is a smooth surface, and the inner surface is a series of zigzag grooves to form concentric circles, and the center is an elliptical arc. The Fresnel lens is equivalent to a planar condenser lens, which can Converge the light into a uniform spot; the present invention utilizes the cooperation of the Fresnel lens and the light reflective bezel 7 to make the light that is not directly emitted through the light-transmitting cover 4 be reflected by the inner surface of the central part 71 of the light reflective bezel 7 The latter part of the reflected light is directly emitted through the light-transmitting cover 4 and the remaining part of the reflected light is reflected back and forth between the inner surface of the light-transmitting cover 4 and the edge portion 72 of the light-reflecting ring 7 multiple times before being emitted through the light-transmitting cover 4, thereby Get a uniform flare effect.

In this specific embodiment, the positions of the first LED light bead 62 and the second LED light bead 64 are staggered from each other, which can effectively reduce the thermal influence between the upper surface and the lower surface of the circuit board 68 .

In this specific embodiment, the lamp housing 2 is composed of a hollow cylindrical structural part 21 and a hollow horn-shaped structural part 22 that are integrally arranged. The lamp cap 1 is installed on the bottom of the cylindrical structural part 21, and the cylindrical structural part 21 The top opening edge is connected with the narrow end opening edge of the horn-shaped structure part 22, the wide-end opening edge of the horn-shaped structure part 22 is connected with the narrow end bottom edge of the heat sink 3, and the driving power supply 5 is installed in the cylindrical structure part 21, and the horn The inner wall of the trumpet-shaped structural part 22 is uniformly provided with a plurality of screw holes 23 along the axial direction, and the top of the screw hole columns 23 is flush with the wide end port of the trumpet-shaped structural part 22, which is used for the driving power supply 5 under the premise of ensuring a compact structure. Provide sufficient accommodating space, and use the screw 24 to pass through the fixing ring 32 and the circuit board 68 to be fixedly connected with the screw hole post 23 . The structure of the lamp housing 2 is simple, and the heat sink 3 and the circuit board 68 can be conveniently fixed on the threaded post 23 by using the screws 24 to form an integral structure, and the connection is convenient and reliable.

In this specific embodiment, the circuit board 68 is a metal-based double-sided circuit board. Here, the circuit board 68 adopts a metal-based double-sided circuit board, which is beneficial to improve the heat dissipation of the first LED lamp bead 62 and the second LED lamp bead 64. The metal-based double-sided circuit board can be a copper-based double-sided circuit board, an aluminum-based double-sided circuit board, surface circuit board, etc.

In this specific embodiment, there are one or more first LED lamp beads 62, and the plurality of first LED lamp beads 62 are installed on the upper surface of the circuit board 68 in a series or series-parallel manner, and all the first LED lamp beads 62 It is located in the central part 71 of the light reflection bead 7; there are one or more second LED lamp beads 64, and multiple second LED lamp beads 64 are installed on the lower surface of the circuit board 68 in series or series-parallel manner. The first LED lamp beads 62 and the second LED lamp beads 64 are generally SMD lamp beads or COB lamp beads or a combination of both.

In the above two embodiments, the lamp base 1 is the electrical connector of the LED spotlight 105, which connects the LED spotlight 105 with the external mains, and the external mains supplies power to the LED spotlight 105. The lamp base 1 generally uses GU10, E27 lamp bases etc.; the material of the lamp housing 2 can be opaque plastic or glass that is transparent, or transparent plastic or glass; the material of the radiator 3 can be made of high thermal conductivity materials, such as metal or high thermal conductivity plastics; The material for making the Neel lens can be PMMA (polymethyl methacrylate), transparent plastic or glass, etc.; the driving power supply 5 is to convert the mains power into direct current for the first LED lamp bead 62 and the second LED lamp bead 64 to work, Installed inside the cylindrical structure part 21 of the lamp housing 2, due to the insulating effect of the lamp housing 2, the driving power supply 5 can adopt a non-isolated power supply, and the driving power supply 5 and the first LED lamp bead 62 and the second LED lamp bead 64 and The lamp holder 1 is connected by wires; the material of the light reflection ring 7 can be made of plastic or the like.

Claims (4)

1. A kind of LED mirror headlight, comprise LED spotlight, described LED spotlight is made up of lamp cap, lamp housing, radiator, light-transmitting cover, driving power supply and the LED light source plate that is electrically connected with described driving power supply, The lamp holder is installed on the bottom of the lamp housing, the driving power is installed in the lamp housing and electrically connected with the lamp holder, the top edge of the lamp housing is connected with the heat dissipation The bottom edge of the radiator is connected, and the top edge of the radiator is connected to the edge of the transparent cover, and it is characterized in that: the lamp housing is a transparent lamp housing, and the radiator is hollow cup-shaped structure, the top of the heat sink is open, and the bottom of the heat sink has an installation platform, the LED light source board is divided into two pieces, the upper light source board and the lower light source board, and the upper light source board is installed by The upper circuit board on the upper surface of the installation platform and the first LED lamp bead installed on the upper circuit board, the light emitted by the first LED lamp bead passes through the light-transmitting cover Injection realizes the front lighting of the LED spotlight, and the lower light source board is composed of a lower circuit board installed on the lower surface of the installation platform and a second LED lamp bead installed on the lower circuit board. Composition, the light emitted by the second LED lamp bead is emitted through the lamp housing to realize the backside lighting of the LED spotlight, the position of the first LED lamp bead and the second LED lamp bead Staggered from each other, the lamp housing is composed of a hollow cylindrical structural part and a hollow horn-shaped structural part integrally arranged. 2. A LED mirror headlight according to claim 1, characterized in that: said translucent cover is a Fresnel lens, and a light is arranged between said translucent cover and said upper light source board. The reflective face ring, the central part of the light reflective face ring is a hollow truncated inverted cone structure and the wide end and the narrow end are all open, and the edge part of the light reflective face ring is the The wide end opening edge of the central part radially extends outwards to form a plane, the peripheral wall of the edge part of the light reflection face ring is connected with the inner peripheral wall of the heat sink, and the central part of the light reflection face ring The edge of the opening of the narrow end of the upper circuit board is in contact with the upper surface of the upper circuit board, and the first LED lamp bead is located in the central part of the light reflection bead, and the light emitted by the first LED lamp bead is Most of the light is directly emitted through the light-transmitting cover, and a small part of the light is reflected by the inner surface of the central part of the light-reflecting bezel, and part of the reflected light is directly emitted through the light-transmitting cover and the rest Part of the reflected light is reflected back and forth between the inner surface of the light-transmitting cover and the edge portion of the light-reflecting bezel multiple times before being emitted through the light-transmitting cover. 3. A kind of LED mirror headlight according to claim 1, characterized in that: said lamp cap is installed on the bottom of said cylindrical structure part, and the top opening edge of said cylindrical structure part is in contact with said cylindrical structure part. The narrow end opening edge of the trumpet-shaped structural part is connected, the wide-end opening edge of the trumpet-shaped structural part is connected with the bottom edge of the radiator, and the driving power is installed on the cylindrical structural part Inside, the inner wall of the trumpet-shaped structure part is evenly provided with a plurality of screw holes along the axial direction, and screws are used to pass through the upper circuit board, the installation platform, the lower circuit board and the The screw holes are fixedly connected. 4. A LED mirror headlight according to claim 1, wherein the upper circuit board is in close contact with the upper surface of the installation platform, and the lower circuit board is in close contact with the upper surface of the installation platform. The lower surface of the installation platform is in close contact with the surface; both the upper circuit board and the lower circuit board are metal-based circuit boards.