CN109764309B

CN109764309B - LED car light of spotlight scope convenient to control

Info

Publication number: CN109764309B
Application number: CN201811651409.4A
Authority: CN
Inventors: 杨坤
Original assignee: GUANGZHOU NORTH AND SOUTH LIGHTING TECHNOLOGY CO LTD
Current assignee: GUANGZHOU NORTH AND SOUTH LIGHTING TECHNOLOGY CO LTD
Priority date: 2018-12-31
Filing date: 2018-12-31
Publication date: 2021-08-10
Anticipated expiration: 2038-12-31
Also published as: CN109764309A

Abstract

The invention provides an LED vehicle lamp with a conveniently-controlled condensation range, which comprises a lamp post body and an integrally-formed radiator, wherein the radiator comprises a radiator mounting seat and a radiator fin assembly; a second radiating fin assembly is arranged on the outer side of the support side plate, and the second radiating fin assembly comprises straight radiating fins which are sequentially distributed from top to bottom and extend from the front end of the support side plate to the rear end of the support side plate; the LED car lamp is characterized in that a third radiating fin assembly is arranged in the support, the third radiating fin assembly comprises plate fin radiating fins and trapezoidal column radiating fins, the plate fin radiating fins are arranged at the rear part in the radiator support from top to bottom in sequence, two sides of each plate fin radiating fin are connected with the inner side of the radiator support, and the trapezoidal column radiating fins are located in front of the plate fin radiating fins.

Description

LED car light of spotlight scope convenient to control

Technical Field

The invention relates to the technical field of LED car lamps, in particular to an LED car lamp with a light condensation range convenient to control.

Background

The automobile is a common modern vehicle, and needs to have high-quality illumination capability when running at night so as to ensure that the automobile can run better and more safely at night, and in order to be better used in different night environments, the headlamp of the automobile can generally emit high-beam light and low-beam light beams which are both used for night illumination, but the low-beam light is low in angle and short in illumination distance and is used when running on a bright road in a meeting or a downtown; the high beam has a high angle and a long illumination distance, and is used when the illumination is poor and a longer visual field distance is needed; when passing through the intersection at night, the high beam and the low beam need to be switched quickly to remind the intersection of coming cars; the head-light that often is used is the integrative double-xenon lamp of far and near light, has far and near two light beams in single bulb, along with the continuous progress of white light LED technique and people to the higher requirement of energy-conserving environmental protection product, and the LED car light is because of its monochromaticity is good, the shock resistance is good, efficient, the energy consumption is low, and is small, light in weight, and the effect of shining is spotlight more, installs the advantage of simple and easy self performance, has replaced traditional halogen lamp gradually.

The invention discloses a high-efficiency LED double-chip high-low beam integrated automobile headlamp module in a Chinese invention patent with the patent number of CN201510444021.7 and the publication number of 2015.11.04, which comprises an LED light source, a reflecting cup, a radiator, a lens and a sleeve, wherein the radiator is provided with a positioning platform for placing the LED light source, and the LED light source comprises an upper LED light source arranged on the upper table surface of the positioning platform and a lower LED light source arranged on the lower table surface of the positioning platform; the reflecting cup is divided into an upper reflecting cup matched with the upper LED light source and a lower reflecting cup matched with the lower LED light source; the upper and lower sides of the positioning platform are respectively provided with an upper reflecting cup positioning table for fixing an upper reflecting cup and a lower reflecting cup positioning table for fixing a lower reflecting cup, the table surfaces of the upper reflecting cup positioning table and the lower reflecting cup positioning table are both projected outside the table surface of the positioning platform, the upper reflecting cup positioning table and the lower reflecting cup positioning table are both arranged in a semicircular shape, and one side of the opening of the semicircular ring is the same as the emergent direction of light; the radiator is characterized in that a plurality of parallel fin-shaped radiating fins are arranged on the outer sides of the upper reflecting cup positioning table and the lower reflecting cup positioning table, gaps are arranged between the radiating fins, the headlamp is good in illumination effect, high in illumination degree and clear in visual field, the headlamp controls the light emitting effect of the emergent light of the headlamp through the upper reflecting cup and the lower reflecting cup, the structure is too complex, miniaturization of the headlamp is not facilitated, difficulty is brought to the structural design of an automobile, meanwhile, the structure only realizes radiating through the radiating fins arranged in a surrounding mode to perform passive radiating, and due to the fact that the upper reflecting cup mounting seat and the lower reflecting cup are limited in position, the number of the radiating fins arranged on the headlamp is limited, the radiating performance is poor, and the service life and the stability of the headlamp are greatly reduced.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides the LED vehicle lamp with the light condensation range convenient to control, and the LED vehicle lamp is high in heat transfer efficiency, excellent in heat dissipation performance, long in service life and high in stability.

In order to achieve the purpose, the technical scheme of the invention is as follows: an LED car lamp with a light condensation range convenient to control comprises a lamp column body and a radiator integrally formed with the lamp column body, wherein the radiator comprises a radiator mounting seat and a radiator fin assembly, the radiator fin assembly comprises a radiator support, the radiator support comprises a support bottom plate, support side plates and a support top plate, the support side plates and the support top plate are positioned on the left side and the right side of the support bottom plate, the first radiator fin assembly is arranged above the support top plate and comprises an annular fin group and arc-shaped fin groups positioned on the front side and the rear side of the annular fin group, each annular fin group comprises two or more annular fins, the central axes of the two or more annular fins are coincident with each other, the inner diameters of the two or more annular fins are gradually increased from inside to outside, and each arc-shaped fin group comprises two or more arc-shaped fins, the central axes of the two or more arc-shaped fins are coincident with the central axes of the annular fins, and the inner diameters of the two or more arc-shaped fins are gradually increased from inside to outside; a second radiating fin assembly is arranged on the outer side of the support side plate, and the second radiating fin assembly comprises straight radiating fins which are sequentially distributed from top to bottom and extend from the front end of the support side plate to the rear end of the support side plate; a third radiating fin assembly is arranged in the support and comprises plate-fin radiating fins and trapezoidal column radiating fins, the plate-fin radiating fins are sequentially arranged at the rear part in the radiator support from top to bottom, the trapezoidal column radiating fins are positioned at the front parts of the plate-fin radiating fins, and two sides of each plate-fin radiating fin are connected with the inner side of the radiating support

The lamp post body transfers heat generated by the LED light source to the radiator, the heat is radiated by the radiator, in order to avoid damaging electronic components of the LED car lamp and prolong the service life of the LED, a more efficient radiating device is required to be arranged on the LED car lamp, and the heat is better and faster radiated; cold air flow also passes through the air channels formed in the fin groups, so that heat is taken away, heat convection is realized, and the heat transfer efficiency is further improved; compared with the high-efficiency LED double-chip high-beam and low-beam integrated automobile headlamp module in the prior art, the radiator in the invention is integrally formed, has good heat transfer effect, can realize heat conduction and heat convection simultaneously, and has high heat dissipation efficiency and high heat dissipation speed; the annular fins in the first radiating fin assembly greatly increase the radiating surface area, so that airflow vortexes are formed in gaps among the fins on the air side, and due to the formation and separation of the vortexes, the continuous development of a thermal boundary layer is thinned or destroyed, and the purpose of enhancing the radiating is achieved, so that the heat transfer is enhanced, the energy is saved, cold air flows enter from one end and flows out from the other end while the radiating area is increased by the arc-shaped radiating fins, a smooth air flow channel is formed, hot air cannot be accumulated, and the radiating efficiency is improved; the second radiating fin component is a straight radiating fin, the structure is simple and compact, the manufacture is convenient, the applicability is strong, the dust is easy to remove, the radiating area is large, and a direct-current ventilation channel is formed among the radiating fins, so that the heat convection speed is high, the frequency is high, and the heat can be better and more quickly taken away; the third radiating fin component adopts the structure, the radiating area is greatly increased, the radiating fins are wide at the back and narrow at the front, the two side faces of the trapezoidal column are guide faces, formed air flow can only flow from back to front along the two side faces of the trapezoidal column, single-flow air flow is formed, the air flow is prevented from entering from the front and back, the air flow is accumulated in the middle, the smoothness degree is high, the heat convection speed is high, the rear part in the radiator support is provided with the plate fin radiating fins of which the two sides are connected with the inner side of the radiating support, the contact area between the inner side of the support and the third radiating fin component is increased, and the heat transfer speed and the heat transfer effect are improved.

Further, the thickness of the radiating fins in the third radiating fin assembly is sequentially reduced from the middle to the front side and the rear side to form a first slope, and cylindrical reinforcing columns are arranged on the trapezoidal column radiating fins and extend from the front ends to the rear ends of the trapezoidal column radiating fins; the thickness of the radiating fins in the third radiating fin assembly is sequentially reduced from the middle to the rear side to form a second slope, and a third slope which is high in the middle and low in the front and rear sides in the vertical direction is formed on the inner side of the bracket side plate.

Adopt above-mentioned structure, the ventilation passageway of formation, the centre is little, both sides are big, and the distinguished and admirable can not deposit and can not come out in the passageway centre, and simultaneously, diversified and outside air contact in both sides around the fin, the radiating rate is faster, and the space is inside then relatively more difficult, and little space hot-air molecular density is big, can have the trend to big space diffusion, consequently adopts above-mentioned molding, makes the heat in the middle of more easy to both sides diffusion around to, is favorable to the heat dissipation, increase of service life, LED stability is high.

Furthermore, the radiator mounting seat comprises a first radiator mounting seat with a hollow structure and positioned below the bottom plate of the support and a second radiator mounting seat with a hollow structure and positioned in the radiator support, the second radiator mounting seat passes through the third radiating fin component, the top end of the second radiator mounting seat passes through the top plate of the radiator support, the bottom end of the second radiator mounting seat passes through the bottom plate of the radiator support and is connected with the first radiator mounting seat, the central shaft of the first radiator mounting seat is superposed with the second radiator mounting seat, the fixed part of the radiator is provided with external threads, the inner side of the radiator mounting seat is provided with internal threads meshed with the external threads of the radiator fixing column, the threaded connection is simple and reliable, the disassembly and the maintenance and the replacement are convenient, meanwhile, the contact area between the radiator fixing part and the radiator mounting seat is increased due to the sawtooth shape of the threads, and the heat transfer effect is enhanced.

In the connection process, the radiator fixing part is inserted into the radiator mounting seat until the top end of the second radiator mounting seat, the contact area between the radiator fixing part and the radiator mounting seat is greatly increased, heat is quickly and better transmitted to the radiator, the heat of the light source is directly transmitted to the third radiating fin assembly through the second radiator mounting seat, the third radiating fin assembly radiates the heat, and the heat transmission and radiation efficiency is high.

Further, the lamp post body comprises a light source mounting part and a radiator fixing part,

the light source mounting part is connected with the cylindrical radiator fixing part and integrally formed, so that heat is more favorably transferred, heat generated by the light source is more quickly and better transferred to the radiator, and meanwhile, the structure of the LED car light is simplified, so that the miniaturization of the LED car light is favorably realized; the fixing part of the radiator adopts a cylindrical structure, so that the heat radiation effect is achieved while heat is transferred, and the heat radiation effect is improved.

Furthermore, two first grooves with opposite directions are arranged on the light source installation part, the two first grooves are respectively provided with an LED light source component, the front end surface of each first groove is of an inclined surface structure extending upwards and outwards,

with two LED light source subassembly settings on same light source installation department, the integrated level is high, and one set of heat transfer device and heat abstractor of sharing, and the integrated level is high, is favorable to realizing the miniaturization.

Further, the LED light source component comprises an LED base, a first LED light source, a second LED light source and a reflecting bowl component which are arranged on the LED base,

the first LED light source provides dipped light for the car lamp; the light that the second LED lamp source sent through the preceding terminal surface of first recess with the side of arch mounting bracket forms the straight community that goes forward behind the reflection of LED bowl cup structure, forms the distance light, can only utilize the second LED lamp source to provide the distance view for the car light, also can utilize first LED light source and second LED light source to provide the distance light for the car light jointly simultaneously.

Further, the reflector assembly comprises a semi-reflector and a semi-reflector mounting rack, the semi-reflector mounting rack comprises a rectangular frame mounting rack located above the LED base and an arch-shaped mounting rack connected with the rectangular frame mounting rack, a reflector assembly mounting seat matched with the arch-shaped mounting rack is arranged at the rear end of the first groove, the bottom surface of the arch-shaped mounting rack is of an inclined surface structure extending upwards and outwards, the front end surface of the first groove and the side surface of the arch-shaped mounting rack form an LED bowl cup structure, the bowl cup structure controls the light emitting range, the light emitting rate of the LED is controlled, and therefore the light spot range is controlled to meet the actual lighting requirement.

After light emitted by the first LED light source is shielded and reflected by the semi-reflecting bowl, the reflected light rays are downwards diffused to the ground to form near light; the arched mounting rack and the groove on the light source mounting part form a cavity structure.

Furthermore, a through hole is arranged on the rear end surface of the first groove close to the mounting seat of the reflector assembly,

the line passing through hole is used for forming a cavity structure with the groove on the arched mounting frame and the light source mounting part through the line passing through hole and communicating with the hollow structure of the fixing part of the radiator to form a ventilation channel, so that heat of the light source mounting part is directly transmitted to the radiator through the ventilation channel, and the radiating efficiency is further improved.

Further, be equipped with the lamp panel at lamp post body periphery between light source installation department and cylinder radiator fixed part, the lamp panel is equipped with square bulge including the lamp stand of cover in lamp post body periphery and the buckle of cover in the lamp stand periphery between buckle and first radiator mount pad, and the one end that is close to the light source installation department in the periphery of lamp stand is equipped with square bulge, is equipped with the second recess that supplies square bulge free slip to extend along the axial direction in the inboard of buckle, the upper end of recess is equipped with the third recess that extends along radial direction, and square bulge passes the second recess from the lower extreme of second recess on the lamp stand, and after reaching the other end of second recess, square bulge is rotatory joint fixed in the third recess, realizes the fixed connection of lamp stand and buckle, and the third recess has certain length, can be rotatory wherein, finely tunes LED to suitable mounted position.

At installation LED car light in-process, insert the car light front end in the car light installation cover, buckle and car light installation position fixed connection, make for metal or other heat conduction materials at the lamp cylinder body, the periphery is smooth, set up the lamp stand in its periphery, rethread lamp stand and buckle fixed connection, be difficult to rotate or the back-and-forth movement, high stability, high reliability, the rubber ring can prevent under the condition that installation process or road conditions are not good jolt etc., produce hard striking, play the cushioning effect, the protection lamp body is not damaged, the stability of installation car light has further been improved, reliability and security.

Further, the LED base is a ceramic base, the lamp post body is made of aluminum alloy material,

the ceramic material has high hardness, stable size, high heat conductivity coefficient and good insulativity, and when the ceramic material is used as an LED base, the base comprises an insulating heat conduction material, so that the heat dissipation and heat conduction capability of the LED can be greatly improved; the aluminum alloy as the heat conducting material has mature technology, low price, easy obtainment, good heat conducting property, light weight, good strength and easy processing and molding.

Drawings

Fig. 1 is a schematic perspective view of an LED vehicle lamp according to the present invention.

Fig. 2 is a schematic perspective view of another view angle of the LED vehicular lamp according to the present invention.

FIG. 3 is an exploded view of the LED vehicle light of the present invention.

FIG. 4 is a front view of the LED vehicle light of the present invention.

FIG. 5 is a left side view of the LED vehicle light of the present invention.

Fig. 6 is a cross-sectional view taken at a-a in fig. 5.

Fig. 7 is a schematic perspective view of a heat sink according to the present invention.

Fig. 8 is a perspective view of another perspective view of the heat sink of the present invention.

Fig. 9 is a top view of the heat sink of the present invention.

Fig. 10 is a schematic perspective view of the buckle according to the present invention.

Fig. 11 is a schematic three-dimensional structure of the lamp post without the semi-reflecting bowl mounting bracket according to the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 5, an LED car lamp with a light-gathering range convenient to control includes a lamp post 100 and a heat sink 200, the heat sink 200 is integrally molded and cast, and has a good heat transfer effect, as shown in fig. 11, the lamp post 100 includes a light source mounting portion 1 and a cylindrical heat sink fixing portion 2, the light source mounting portion 1 and the cylindrical heat sink fixing portion 2 are connected together and integrally molded, which is more beneficial to heat transfer, so that heat generated by a light source is transferred to the heat sink 200 more quickly and better, and meanwhile, the structure of the LED car lamp is simplified, which is beneficial to miniaturization of the LED car lamp; the radiator fixing part 2 adopts a cylindrical structure, has the function of heat dissipation while transferring heat, and improves the heat dissipation effect.

As shown in fig. 3 and 7 to 9, the heat sink 200 includes a heat sink mounting seat 3 and a heat dissipating fin assembly 4, the heat dissipating fin assembly 4 includes a heat sink support 41, the heat sink support 41 includes a support bottom plate 411, left and right support side plates 412 and a support top plate 413, the support top plate 413 includes a rectangular top plate and arched top plates located at the front and rear sides of the rectangular top plate, a first heat dissipating fin assembly 42 is disposed above the support top plate 413, the first heat dissipating fin assembly 42 includes an annular fin group 4131a and arc-shaped fin groups 4131b located at the front and rear sides of the annular fin group 4131a, the annular fin group 4131a includes two or more annular fins whose central axes are overlapped and whose inner diameters are gradually increased from inside to outside, the annular fins greatly increase the heat dissipating surface area, enhance the turbulence intensity at the air side, form airflow vortices in gaps between the fins, and due to the formation and separation of the vortices, the circular arc fin group 4131b comprises two or more circular arc fins of which the central axes are superposed with the central axis of the annular fin and the inner diameters are gradually increased from inside to outside, the circular arc fins increase the heat dissipation area, and simultaneously, cold air flows in from one end and flows out from the other end to form a smooth air flow channel, so that hot air cannot be accumulated, and the heat dissipation efficiency is improved; be equipped with second cooling fin subassembly 43 in the support curb plate 412 outside, second cooling fin subassembly 43 is including the straight cooling fin 43a that extends to support curb plate 412 rear end from the support curb plate 412 front end that from top to bottom distributes in proper order, and simple structure is compact, manufacturing is convenient, the suitability is strong, easily removes dust, and heat radiating area is also great, and the formation direct current ventilation passageway between cooling fin, and the thermal convection is fast, and the frequency is high, better faster takes away the heat.

As shown in fig. 4, 7 and 8, a third heat dissipation fin assembly 44 is arranged in the support, the third heat dissipation fin assembly 44 includes plate-fin heat dissipation fins which are located at the rear part of the heat dissipation support 41 and are sequentially arranged from top to bottom, and two sides of the plate-fin heat dissipation fins are connected with the inner side of the heat dissipation support, and a trapezoidal column heat dissipation fin located in front of the plate-fin heat dissipation fins, the thickness of the plate-fin heat dissipation fins in the third heat dissipation fin assembly 44 is sequentially reduced from the middle to the front and the rear sides to form a first slope 44a, a cylindrical reinforcement column 44b is arranged on the trapezoidal column heat dissipation fins, and the cylindrical reinforcement column 44b extends from the front end to the rear end of the trapezoidal column heat dissipation fins; the thickness of the heat radiating fins in the third heat radiating fin assembly 44 is reduced from the middle to the rear side in order to form a second slope 44c, a third slope 44d high in the middle and low at the front and rear sides in the vertical direction is formed inside the holder side plate 412,

by adopting the structure, the heat dissipation area is greatly increased, the heat dissipation fins are wide at the back and narrow at the front, the two side faces of the trapezoidal column are guide faces, the formed air flow can only flow from back to front along the two side faces of the trapezoidal column to form air flow in a single flow direction, the air flow is prevented from entering from the front direction and the back direction, the air flow is accumulated in the middle, the fluency is high, the heat convection speed is high, the plate fin heat dissipation fins of which the two sides are connected with the inner side of the heat dissipation bracket are arranged at the rear part in the heat dissipation bracket 41, the contact area between the inner side of the bracket and the third heat dissipation fin assembly 44 is increased, and the heat transfer speed and the heat transfer effect are improved; the ventilation channel that forms, the centre is little, and both sides are big, and the air current can not deposit and can not flow out in the middle of the passageway, and simultaneously, the fin front and back both sides are diversified to contact with the outside air, and the radiating rate is faster, consequently adopts above-mentioned molding, makes middle heat more easily to both sides diffusion around to, is favorable to the heat dissipation.

The lamp post 100 transfers heat generated by the LED light source to the radiator 200, the radiator 200 is used for radiating heat, in order to avoid damaging electronic components of the LED car lamp and prolong the service life of an LED, a more efficient heat radiating device is required to be arranged on the LED car lamp, and the heat is better and faster radiated out; cold air flow also passes through the air channels formed in the fin groups, so that heat is taken away, heat convection is realized, and the heat transfer efficiency is further improved; the radiator 200 of the invention is integrally formed, has good heat transfer effect, can realize heat conduction and heat convection simultaneously, and has high heat dissipation efficiency and high heat dissipation speed.

As shown in fig. 4, 6 and 8, the heat sink mounting seat 3 includes a first heat sink mounting seat 31 with a hollow structure located below the support bottom plate 411 and a second heat sink mounting seat 32 with a hollow structure located in the heat sink support 41, in the connection process, the heat sink fixing portion 2 is inserted into the heat sink mounting seat 3 until the top end of the second heat sink mounting seat 32, so that the contact area between the heat sink fixing portion 2 and the heat sink mounting seat 3 is greatly increased, and the heat is transferred to the heat sink 200 more quickly and better, the second heat sink mounting seat 32 passes through the third heat sink fin assembly 44, the heat sink fixing portion 2 directly transfers the heat of the light source to the third heat sink fin assembly 44 through the second heat sink mounting seat 32, and the heat is dissipated through the third heat sink fin assembly 44, so that the heat transfer and dissipation efficiency is high.

The top of second radiator mount pad 32 passes the roof 41 of radiator support, the bottom of second radiator mount pad 32 passes the bottom plate of radiator support 41 and links to each other with first radiator mount pad 31, first radiator mount pad 31 center pin and the coincidence of second radiator mount pad 32, be equipped with the external screw thread on radiator fixed part 2, radiator mount pad 3 inboard is equipped with the internal thread that meshes with radiator 200 fixed column external screw thread, threaded connection is simple reliable, the dismouting of being convenient for, also be convenient for maintain and change, the sawtooth shape of screw thread has increased the area of contact of radiator fixed part 2 and radiator mount pad 3 simultaneously, the heat transfer effect has been strengthened.

As shown in fig. 3 to 5, two first grooves 11 with opposite directions are formed in the light source mounting part 1, the two first grooves 11 are respectively provided with the LED light source assemblies 12, the two LED light source assemblies 12 are arranged on the same light source mounting part 1, the integration level is high, and a set of heat transfer device and a set of heat dissipation device are shared, so that the integration level is high, and the miniaturization is facilitated; the LED light source assembly 12 includes an LED base 121, and a first LED light source 122, a second LED light source 123 and a light reflecting bowl assembly 124 which are located on the LED base 121, in this embodiment, the LED base 121 is made of a ceramic material, which has high hardness, stable size, high thermal conductivity and good insulation, and when the ceramic material is used as the LED base 121, the base itself includes an insulating and heat conducting material, which can greatly improve the heat dissipation and heat conducting capabilities of the LED; the first LED light source 122 provides low beam for the vehicle lights; a second LED light source may be utilized to provide high beam light for the vehicle light.

As shown in fig. 3, the reflector assembly 124 includes a half reflector 124a and a half reflector mounting bracket 124b, which are located above the first LED light source 122, and after light emitted from the first LED light source 122 is blocked and reflected by the half reflector 124a, the reflected light is diffused downward toward the ground to form a low beam; half reflector mounting bracket 124b is including the rectangle frame mounting bracket 124ba that is located LED base 121 top and the arch mounting bracket 124bb that links to each other with rectangle frame mounting bracket 124ba, arch mounting bracket 124bb forms cavity structure 5 with the recess on the light source installation department 1, be equipped with the reflector assembly 124 mount pad that matches with arch mounting bracket 124bb at the rear end of first recess 11, be equipped with line through-hole 13 on the position that the rear end face of first recess 11 is close to reflector assembly 124 mount pad, form cavity structure 5 and the hollow structure intercommunication of radiator fixed part 2 with the recess on arch mounting bracket 124bb and the light source installation department 1 through line through-hole 13, form the ventilation channel, directly convey the heat of light source installation department 1 to radiator 200 through this ventilation channel, further improved the radiating efficiency.

The bottom surface of the arched mounting frame 124bb is an inclined plane structure extending upwards and outwards, the front end surface of the first groove 11 and the side surface of the arched mounting frame 124bb form an LED bowl cup structure, the bowl cup structure controls the light emitting range, controls the light emitting rate of an LED, and therefore controls the light spot range to meet the actual lighting requirement.

As shown in fig. 3, 5 and 6, a lamp panel 6 is disposed at the periphery of a lamp post 100 between a light source mounting portion 1 and a cylindrical heat sink fixing portion 2, the lamp panel 6 includes a lamp base 61 fitted at the periphery of the lamp post 100 and a buckle 62 fitted at the periphery of the lamp base 61, the lamp post 100 is made of metal or other heat conductive material, the periphery is smooth, the lamp base 61 is disposed at the periphery thereof, and is fixedly connected with the buckle 62 through the lamp base 61, the lamp is not easy to rotate or move back and forth, the stability is high, the reliability is strong, in the process of mounting an LED lamp, the front end of the lamp is inserted into a lamp mounting cover, the buckle 62 is fixedly connected with a vehicle lamp mounting portion, a rubber ring 63 is disposed between the buckle 62 and a first heat sink mounting portion 31, the rubber ring 63 can prevent hard impact from occurring in the mounting process or under the condition of bumpiness in road conditions, and has a buffer effect, a square protrusion 61a is disposed at one end of the periphery of the lamp base 61 close to the light source mounting portion 1, as shown in fig. 10, a second groove 61b extending in the axial direction is provided on the inner side of the buckle 62 for allowing the square protrusion 61a to freely slide, a third groove 61c extending in the radial direction is provided on the upper end of the groove, the square protrusion 61a on the lamp holder 61 passes through the second groove 61b from the lower end of the second groove 61b, and after reaching the other end of the second groove 61b, the square protrusion 61a is rotatably clamped and fixed in the third groove 61c to realize the fixed connection between the lamp holder 61 and the buckle 62, and the third groove 61c has a certain length and can be rotated therein to finely adjust the LED to a proper installation position.

The LED car lamp with the controllable light spot range has the advantages of controllable light spot range of the LED car lamp, simple and small structure, scientific and reasonable design, high integration level, small occupied space, convenience in installation, high heat transfer efficiency, good heat dissipation performance, long service life, high stability, convenience in maintenance and replacement and wide application range.

Claims

1. The utility model provides a spotlight scope is convenient for control's LED car light which characterized in that: the lamp post body and the radiator integrally formed with the lamp post body are included, the radiator comprises a radiator mounting seat and a radiating fin assembly, the radiating fin assembly comprises a radiator support, the radiator support comprises a support bottom plate, support side plates and a support top plate, the support side plates and the support top plate are positioned on the left side and the right side of the support bottom plate, the first radiating fin assembly is arranged above the support top plate and comprises an annular fin group and two or more circular-arc-shaped fin groups, the circular-arc-shaped fin groups are positioned on the front side and the rear side of the annular fin group, the annular fin groups comprise two or more circular-arc-shaped fins, the central axes of the two or more circular-arc-shaped fin groups are coincident with the central axis of the annular fin group, and the inner diameters of the two or more circular-arc-shaped fin groups are gradually increased from inside to outside; a second radiating fin assembly is arranged on the outer side of the support side plate, and the second radiating fin assembly comprises straight radiating fins which are sequentially distributed from top to bottom and extend from the front end of the support side plate to the rear end of the support side plate; a third radiating fin assembly is arranged in the support and comprises plate-fin radiating fins and trapezoidal column radiating fins, the plate-fin radiating fins are arranged at the rear part in the radiator support from top to bottom, the trapezoidal column radiating fins are arranged at the front parts of the plate-fin radiating fins, the thickness of the radiating fins in the third radiating fin assembly is reduced from the middle to the front and rear sides in sequence to form a first slope, a cylindrical reinforcing column is arranged on each trapezoidal column radiating fin, and the cylindrical reinforcing column extends from the front end to the rear end of each trapezoidal column radiating fin; the thicknesses of the radiating fins in the third radiating fin assembly are sequentially reduced from the middle to the rear side to form a second slope, and a third slope which is high in the middle and low in the front and rear sides in the vertical direction is formed on the inner side of the bracket side plate; the heat dissipation fins are wide at the back and narrow at the front, the two side faces of the trapezoidal column are guide faces, and formed air flow can only flow from back to front along the two side faces of the trapezoidal column to form air flow in a single flow direction; the two sides of the plate fin radiating fins are connected with the inner side of the radiating bracket.

2. The LED vehicle lamp with the conveniently controlled condensation range according to claim 1, is characterized in that: the radiator mounting seat comprises a first radiator mounting seat with a hollow structure and positioned below the bottom plate of the support and a second radiator mounting seat with a hollow structure and positioned in the radiator support, the second radiator mounting seat penetrates through the third radiating fin assembly, the top end of the second radiator mounting seat penetrates through the top plate of the radiator support, the bottom end of the second radiator mounting seat penetrates through the bottom plate of the radiator support and is connected with the first radiator mounting seat, the central shaft of the first radiator mounting seat is overlapped with the central shaft of the second radiator mounting seat, external threads are arranged on the radiator fixing part, and internal threads meshed with the external threads of the radiator fixing column are arranged on the inner side of the radiator mounting seat.

3. The LED vehicle lamp with the conveniently controlled condensation range according to claim 2, is characterized in that: the lamp post includes a light source mounting portion and a cylindrical heat sink fixing portion.

4. The LED vehicle lamp with the conveniently controlled condensation range according to claim 3, is characterized in that: be equipped with two opposite first recesses of orientation on the light source installation department, install LED light source subassembly respectively in two first recesses, the preceding terminal surface of first recess is the inclined plane structure of upwards outwards extending.

5. The LED vehicle lamp with the conveniently controlled condensation range according to claim 4, is characterized in that: the LED light source assembly comprises an LED base, a first LED light source, a second LED light source and a light reflecting bowl assembly, wherein the first LED light source, the second LED light source and the light reflecting bowl assembly are positioned on the LED base.

6. The LED vehicle lamp with the conveniently controlled condensation range according to claim 5, is characterized in that: the light reflecting bowl assembly comprises a semi-light reflecting bowl and a semi-light reflecting bowl mounting frame, wherein the semi-light reflecting bowl mounting frame is positioned above a first LED light source, the semi-light reflecting bowl mounting frame comprises a rectangular frame mounting frame positioned above an LED base and an arch mounting frame connected with the rectangular frame mounting frame, a light reflecting bowl assembly mounting seat matched with the arch mounting frame is arranged at the rear end of a first groove, the bottom surface of the arch mounting frame is of an inclined plane structure extending upwards and outwards, and the front end surface of the first groove and the side surface of the arch mounting frame form an LED bowl cup structure.

7. The LED vehicle lamp with the conveniently controlled condensation range according to claim 6, is characterized in that: and a through hole is formed in the position, close to the mounting seat of the light reflecting bowl assembly, of the rear end surface of the first groove.

8. The LED vehicle lamp with the conveniently controlled light condensation range according to any one of claims 3-7, characterized in that: be equipped with the lamp panel at lamp post body periphery between light source installation department and the cylinder radiator fixed part, the lamp panel is equipped with the rubber ring including the lamp stand of cover in lamp post body periphery and the buckle of cover in the lamp stand periphery between buckle and first radiator mount pad, is equipped with square bulge in the one end that the periphery of lamp stand is close to the light source installation department, is equipped with the second recess that supplies square bulge free gliding along the axial direction extension in the inboard of buckle, the upper end of recess is equipped with the third recess that extends along radial direction.

9. The LED vehicle lamp with the conveniently controlled condensation range according to claim 5, is characterized in that: the LED base is a ceramic base, and the lamp post body is made of aluminum alloy materials.