CN111750325A

CN111750325A - Method for improving traditional LED car lamp

Info

Publication number: CN111750325A
Application number: CN202010779517.0A
Authority: CN
Inventors: 龚备文
Original assignee: Zhongshan Baomingtong Lighting Technology Co ltd
Current assignee: Zhongshan Baomingtong Lighting Technology Co ltd
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2020-10-09

Abstract

The invention discloses a method for improving a traditional LED car lamp, which belongs to the field of car lamp improvement.A concave mounting groove is formed on a shell, a laser module is directly mounted on the mounting groove, the laser module is connected with a control circuit of the car lamp and an original LED light source, and a heat dissipation module in the car lamp takes away heat emitted by the LED light source and the laser module during working, so that the heat is prevented from being accumulated in the shell, and the service life of the lamp can be effectively prolonged. Meanwhile, the laser module and the original lamp shell are simply and directly combined, complex arrangement is not needed, the size of the lamp is greatly reduced, and the modification cost is saved.

Description

Method for improving traditional LED car lamp

Technical Field

The invention relates to the field of vehicle lamp modification, in particular to a method for modifying a traditional LED vehicle lamp.

Background

With the improvement of living standard of people, more and more families purchase automobiles, wherein important lighting parts on the automobiles and application markets of automobile lamp and headlight bulbs are very wide when the automobile lamps are used, and the automobile headlight bulbs on the market at present are three types such as halogen lamps, HID or LEDs. In recent years, laser automobile headlights appear on the market, and the laser headlights have the characteristics of long service life, energy conservation, high luminous intensity, high response speed, low brightness attenuation, high luminous efficiency, small size and the like, and are well popular with consumers. The existing advanced laser headlamp cannot be randomly replaced and combined with the existing three types of vehicle lamps due to high installation difficulty, and a vehicle lamp shell, a control circuit and the like need to be redesigned according to the size of the laser headlamp, so that the installation difficulty is improved, and the installation cost is also improved.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to solve the technical problem of providing a method for modifying the traditional LED car lamp, wherein the traditional LED car lamp is modified, the laser module is directly arranged on the original shell, the combination of laser and LED illumination is realized, and the cost is saved.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides a method for improving a traditional LED car lamp, which comprises the following steps:

s1, providing a traditional LED automobile headlamp, which comprises a shell, a heat dissipation module, an LED light source and a control circuit, wherein the heat dissipation module, the LED light source and the control circuit are arranged in the shell, and the sealing structure on the top of the shell is removed;

s2, forming an inwards concave laser module mounting groove on the top of the shell;

s3, providing a laser module, and installing the laser module in the installation groove;

s4, the laser module, the control circuit and the LED light source are mutually connected in a circuit, and an external power supply connecting wire is LED out to obtain the LED laser integrated car lamp bulb;

and S5, installing and fixing the lamp bulb integrating the LED laser into the headlight cup of the automobile, and connecting the external power supply connecting wire with the circuit of the automobile.

In a preferred technical scheme of the invention, the conventional LED automobile headlamp further comprises a lens module.

And S6, adjusting the focal length of the lens module.

In a preferred technical scheme of the invention, the inner side wall of the mounting groove is provided with an annular convex edge, the laser module comprises a laser shell, the side wall of the laser shell is provided with an annular clamping groove matched with the annular convex edge, and the annular convex edge is clamped with the annular clamping groove.

In a preferred technical scheme of the invention, the laser module further comprises a PCB, a laser tube, a fluorescent sheet, a reflecting bowl and a lens. The PCB board set up in the inner diapire of laser shell, the laser pipe install in the PCB board, the fluorescence piece and reflector stack in the laser pipe, lens inlay in the upper end of laser shell.

In a preferred technical scheme of the invention, a groove is formed in the inner bottom of the laser shell, and the PCB is embedded in the groove. The top of the inner side wall of the laser shell is provided with a clamping cavity, and the lens is clamped in the clamping cavity.

In a preferred technical scheme of the present invention, the heat dissipation module includes a heat pipe, an opening is formed at a lower end of the laser housing, one end of the heat pipe is tightly connected to the laser module, the other end of the heat pipe is inserted into the laser housing through the opening, and a pipe wall of the heat pipe is tightly attached to an inner wall of the housing.

In a preferred technical solution of the present invention, the heat dissipation module further includes a heat dissipation fan, the heat dissipation fan is disposed at the bottom of the housing, and a lower end of the heat pipe is connected to the heat dissipation fan.

In a preferred embodiment of the present invention, the method further includes a control method, including the steps of:

a1: the control unit is triggered to start the LED light source to realize LED light illumination;

a2: the control unit is triggered, and the laser module is started to realize the simultaneous illumination of laser light and LED light;

a3: when the laser module is not needed to be used, the trigger control unit closes the laser module, and only the LED light source is stored to provide LED lamplight illumination;

a4: when the automobile is flamed out or a user turns off the automobile lamp, the LED light source can be extinguished, and all lights are turned off.

In a preferred embodiment of the present invention, a diameter of the laser module does not exceed a diameter of the housing.

In a preferred technical scheme of the present invention, the heat dissipation module includes a plurality of heat conduction fins, an oil conduction pipe, a heat dissipation fan, a circulation pump, a heat dissipation cylinder, and a mixing component, the oil conduction pipe is closed to form a circulation oil path, the circulation pump is connected to the circulation oil path, the oil conduction pipe extends to the inside of the laser module, a circular ring portion is disposed at the lower end of the oil conduction pipe, the plurality of heat conduction fins are arranged in a circular ring shape, the upper ends of the plurality of heat conduction fins are all embedded in the oil conduction pipe of the circular ring portion, the oil conduction pipe penetrates through the heat dissipation cylinder, and a portion of the oil conduction pipe located in the heat dissipation cylinder is bent and arranged in a circuitous manner;

mixing component includes motor, (mixing) shaft and stirring rake, the stirring rake is fixed in the bottom of heat dissipation jar, the (mixing) shaft runs through the bottom of heat dissipation jar with the power take off end fixed connection of motor, the stirring rake is fixed in on the (mixing) shaft, cooling fan is fixed in the inside of ring portion, be fixed with the condenser on cooling fan's the input, the condenser still through the metal frame with on the ring portion oil pipe fixed connection leads.

In a preferred technical scheme of the invention, a metal tube is sleeved in the middle of the oil guide tube, a metal sheet for erecting the heat exchange is fixed on the metal tube, and the metal sheet is attached to the shell.

The invention has the beneficial effects that:

according to the method for improving the traditional LED car lamp, the concave mounting groove is formed in the shell, the laser module is directly mounted on the mounting groove, the laser module is connected with the control circuit of the car lamp and the original LED light source, the heat radiation module in the car lamp takes away heat emitted by the LED light source and the laser module during working, the heat is prevented from being accumulated in the shell, and the service life of the lamp can be effectively prolonged. Meanwhile, the laser module and the original lamp shell are simply and directly combined, complex arrangement is not needed, the size of the lamp is greatly reduced, and the modification cost is saved.

Drawings

FIG. 1 is a schematic flow chart of a method for retrofitting a conventional LED vehicle lamp according to the present invention;

FIG. 2 is a schematic flow chart of a conventional LED vehicle lamp modification method including step 6 according to the present invention;

FIG. 3 is a schematic structural diagram of a laser module installation groove set in step 3 according to the embodiment of the present invention;

fig. 4 is a schematic structural diagram 1 of a laser module provided in step 4 according to an embodiment of the present invention;

FIG. 5 is a schematic view of a laser module structure provided in step 4 of the embodiment of the present invention 2

FIG. 6 is a schematic diagram comparing light sources of a conventional halogen lamp, a xenon lamp, an LED lamp and an LED laser combination lamp according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a heat sink in an embodiment of the invention;

fig. 8 is a schematic top view of the ring portion according to the embodiment of the present invention.

In the figure:

110. the laser cooling device comprises a mounting groove 111, a laser shell 112, a PCB board 113, a laser tube 114, a fluorescent sheet 115, a light reflecting bowl 116, a lens 120, a groove 121, a clamping cavity 122, an annular clamping groove 123, an annular convex edge 109, a heat pipe 107, a heat radiating fan 21, an oil guide pipe 22, an annular part 23, a heat radiating fan 24, a condenser 25, a heat conducting sheet 26, a metal pipe 27, a metal sheet 28, a heat radiating cylinder 29, a circulating pump 31, a motor 32, a stirring shaft 33 and stirring slurry.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1, an embodiment provides a method for modifying a conventional LED vehicle lamp, including the following steps:

s1, providing a traditional LED automobile headlamp, which comprises a shell, a heat dissipation module, an LED light source and a control circuit, wherein the heat dissipation module, the LED light source and the control circuit are arranged in the shell, the external structure of the shell is kept unchanged, the positions of the heat dissipation module, the LED light source and the control circuit are kept unchanged, and a sealing structure at the top of the shell is removed;

s2, after the sealing structure on the top of the shell is removed, an inwards concave laser module mounting groove 110 is formed in the top of the shell, and the inwards concave outline shape of the mounting groove 110 is consistent with that of the laser module, so that the laser module can be conveniently embedded;

s3, providing a laser module, installing the laser module into the installation groove 110, wherein the contour of the installation groove 110 is consistent with the bottom of the laser module, so that the laser module can be perfectly embedded into the installation groove 110;

s4, after the laser module is installed, leading out a power supply control connecting wire of the laser module, connecting the laser module, the control circuit and the LED light source with each other in a circuit manner, leading out a total external power supply connecting wire, and after the laser module is installed on the shell, obtaining the LED laser integrated car lamp bulb;

s5, the LED laser is combined with the integrated lamp bulb to be installed and fixed in the headlight cup of the automobile, the appearance structure of the lamp bulb after the laser module is installed is not greatly changed, so the lamp bulb can be installed back into the original headlight cup of the automobile, after the lamp is embedded into the headlight cup of the automobile, the external power supply connecting wire of the lamp is connected with the circuit of the automobile, and the circuit of the automobile is responsible for supplying power to the lamp and sending a control command.

As shown in fig. 2, in one embodiment of the present invention, the conventional LED car headlamp further includes a lens module. And S6, adjusting the focal length of the lens module. Through the focus of adjustment module, the focus of the light that the adjustment car lamp shines out makes laser lamp and LED light source shine on the preceding suitable position of vehicle, improves the car light and gathers light performance, and then promotes the utilization efficiency of car light.

As shown in fig. 3 to 5, in an embodiment of the present invention, an inner side wall of the mounting groove 110 is provided with an annular flange 123, the laser module includes a laser housing 111, the side wall of the laser housing 111 is provided with an annular clamping groove 122 adapted to the annular flange 123, and the annular flange 123 is clamped with the annular clamping groove 122. When the laser housing 111 is inserted into the mounting groove 110, the annular clamping groove 122 on the laser housing 111 clamps the annular convex edge 123 in the mounting groove 110, so that the connection of the laser housing 111 is tighter, the position of the connection to the mounting groove 110 is more accurate, and the position deviation is avoided. Connect through the mode of joint, when dismantling, both direct separation, ring groove 122 and annular chimb 123 separation are crisp direct to have obvious paragraph and feel, be favorable to the user to learn whether both accomplish the separation.

In one embodiment of the present invention, the laser module further includes a PCB 112, a laser tube 113, a fluorescent sheet 114, a light reflecting bowl 115, and a lens 116. The PCB 112 is disposed on the inner bottom wall of the laser housing 111, the laser tube 113 is mounted on the PCB 112, the fluorescent sheet 114 and the light-reflecting bowl 115 are stacked in the laser tube 113, and the lens 116 is embedded in the upper end of the laser housing 111. The PCB 112 receives a laser tube 113, a phosphor plate 114, a reflector 115 and a lens 116 which cooperate to emit laser light to illuminate the front of the vehicle during operation. Meanwhile, heat generated by all components during working can be transmitted to the PCB 112, the PCB 112 is fixed on the inner bottom wall of the laser shell 111, the PCB 112 transmits the temperature to the laser shell 111 through the connection of the PCB and the laser shell 111, and the temperature is exhausted through the step module by the laser shell 111. The heat dissipation effect of the laser module is improved.

In one embodiment of the present invention, a groove 120 is formed in the inner bottom of the laser housing 111, and the PCB 112 is embedded in the groove 120. The top of the inner side wall of the laser housing 111 is provided with a clamping cavity 121, and the lens 116 is clamped in the clamping cavity 121. The PCB 112 is embedded in the groove 120, so that the contact area between the PCB 112 and the laser shell 111 is increased, heat can be transmitted to the laser shell 111 by the PCB 112, the PCB 112 can be stably fixed on the laser shell 111, and the displacement of the PCB 112 in the use process is prevented. Meanwhile, the lens 116 is clamped in the clamping cavity 121, so that the fixing capacity of the lens 116 is enhanced, and the lens 116 is prevented from falling off due to vibration in the driving process of the vehicle.

In an embodiment of the present invention, the heat dissipation module includes a heat pipe 109, an opening is formed at a lower end of the laser housing 111, one end of the heat pipe 109 is tightly connected to the laser module, the other end of the heat pipe 109 is inserted into the laser housing 111 through the opening, and a pipe wall of the heat pipe 109 is tightly attached to an inner wall of the housing. Inside heat pipe 109 stretched into laser casing 111, with laser casing 111 zonulae occludens, on heat transmission to heat pipe 109 on the laser module, heat pipe 109 derived the heat in laser casing 111, avoided the heat to gather in laser casing 111 in a large number, avoided the intensification of laser module, the life of extension laser module.

In an embodiment of the present invention, the heat dissipation module further includes a heat dissipation fan 107, the heat dissipation fan 23 is disposed at the bottom of the housing, and the lower end of the heat pipe 109 is connected to the heat dissipation fan 107. The heat dissipation fan 107 blows out the heat transferred from the heat pipe 109 to lower the temperature of the heat pipe 109, so that the heat pipe 109 can continuously bring out the heat in the laser module.

In one embodiment of the present invention, a control method is further included, including the steps of:

Different lights can be used under different environmental conditions through the control, so that the vehicle lamp can meet different use requirements.

In this embodiment, through simple control, can realize the switching between the laser tube 113 on LED, the laser module at any time, be fit for the user and adjust the selection according to different road conditions or different driving situations. The LED laser tube is applied to the light type design of a white light laser tube spherical surface on the top end without hurting human eyes, the LED and the laser tube are controlled separately in an intelligent mode, the LED is lightened by turning on the light for the first time, the laser tube and the LED are lightened together for the second time, the LED and the laser tube are broken down, and the color temperature of the laser tube can be freely prepared into different color temperature ranges from 1700k to 6500k through the adjustment of the fluorescent sheet 114 module.

As shown in fig. 6, the method for modifying a conventional LED car lamp provided in this embodiment is completely matched with a conventional halogen lamp or a conventional LED car smoke, and different laser tube light types can be applied according to different car models, and the light source series includes all car lamp bulb models: single lamps H7, H8, H9, H10, H11, 9005, 9006, 9012, H16JP, H16EU, PSX24, PSX26, P13. Twin lamps H4, H13, 9004, 9007. The series of small models H1, H3, 880, 881. D series D1, D2, D3, D4 and D5.

The embodiment enables the product to directly replace the traditional bulb of the vehicle through the innovation of optical, electric and thermal structures. The following is the comparison of various parameters of the traditional automobile headlamp and the traditional LED automobile lamp modification method provided by the invention:

in one embodiment of the invention, the diameter of the laser module does not exceed the diameter of the housing. The diameter of laser module is close the diameter of casing, and after having installed laser module additional, the size of headlight can not be big than original size, guarantees that it still can install back in original headlight cup.

The conventional car lamp is only provided with one light source, so that the conventional heat dissipation module only needs to act on the single light source, heat emitted by the single light source is more concentrated and lower than that of the car lamp provided by the embodiment, the requirement on the heat extraction capacity of the conventional heat dissipation module is not high, and the heat dissipation can be met by adopting the simple heat dissipation fan 23. However, in the embodiment, the laser module and the LED light source module are separated by a certain distance, and the two modules work simultaneously, and the heat generation amount is larger than that of the conventional car lamp, so that the conventional heat dissipation module cannot meet the heat dissipation requirement of long distance and large heat generation amount. The heat dissipation module is not improved, and heat can be accumulated in the lamp shell when the heat dissipation module cannot meet the heat dissipation requirement, so that the service life of the car lamp is shortened.

As shown in fig. 7-8, in a preferred embodiment of the present invention, the heat dissipation module includes a plurality of heat conduction fins 25, an oil conduction pipe 21, a heat dissipation fan 23, a circulation pump 29, a heat dissipation cylinder 28 and a mixing component, the oil conduction pipe 21 is closed to form a circulation oil path, the circulation pump 29 is connected to the circulation oil path, the oil conduction pipe 21 extends to the inside of the laser module, the lower end of the oil conduction pipe 21 is provided with a circular ring 22, the plurality of heat conduction fins 25 are arranged in a circular ring shape, the upper ends of the plurality of heat conduction fins 25 are all embedded in the oil conduction pipe 21 of the circular ring 22, and the oil conduction pipe 21 passes through the heat dissipation cylinder.

The part of the oil guide pipe 21 located in the heat dissipation cylinder 28 is bent and detoured, the mixing component comprises a motor 31, a stirring shaft 32 and a stirring paddle 33, the stirring paddle 33 is fixed at the bottom of the heat dissipation cylinder 28, the stirring shaft 32 penetrates through the bottom of the heat dissipation cylinder 28 and is fixedly connected with the power output end of the motor 31, the stirring paddle 33 is fixed on the stirring shaft 32, the heat dissipation fan 23 is fixed inside the circular ring part 22, the input end of the heat dissipation fan 23 is fixed with a condenser 24, and the condenser 24 is further fixedly connected with the oil guide pipe 21 on the circular ring part 22 through a metal frame.

The oil conduit 21 is filled with heat conducting oil, and the circulating pump 29 pumps the heat conducting oil to enable the heat conducting oil to circularly flow in the circulating oil circuit. The oil guide pipe 21 extends into the laser module to take out heat generated during the operation of the laser module. The heat is transferred to the heat conduction oil of the oil guide pipe 21, the heat conduction oil is heated, the hot heat conduction oil flows out of the laser module along with the flowing of the circulating oil way, and the heat conduction oil with lower temperature enters the laser module to carry out heat exchange. Hot conduction oil flows out laser module after, on ring portion 22 flows, ring portion 22 sets up the bottom at the lamp body, and conducting strip 25 then extends the below of lamp body from the bottom of lamp body, leads to the outside of lamp body with the heat.

The conducting strip 25 is made by the sheetmetal 27 that heat conductivility is good, and the conducting strip 25 is embedded into oil pipe 21, and when hot conduction oil flowed through ring portion 22, the conduction oil contacted with conducting strip 25, on reaching the conduction oil with self heat, conduction oil self heat reduced can enter into again and take away the heat in the laser module. The heat conducting fins 25 are arranged in a sheet shape, the contact area of the heat conducting fins 25 with air is large, and self heat can be well dissipated, so that heat absorbed by the heat conducting fins 25 from the heat conducting oil can be dissipated. Meanwhile, the heat dissipation fan 23 is started, the heat dissipation fan 23 blows downwards, air flow near the heat conducting fins 25 is accelerated, heat on the heat conducting fins 25 is accelerated to be dissipated, the heat dissipation effect is improved, and heat dissipation of the heat conducting oil to the laser module is further improved. The condenser 24 is started to cool the air above the heat dissipation fan 23, so that the air blown out by the heat dissipation fan 23 is cooler, and a better heat dissipation effect is achieved.

When the heat conducting oil flows out from the annular part 22, the heat conducting oil immediately flows into the heat dissipation cylinder 28 along the oil guide pipe 21, water is filled in the heat dissipation cylinder 28, the part of the oil guide pipe 21 in the heat dissipation cylinder 28 is bent and arranged in a winding manner, the contact area between the oil guide pipe 21 and the water is enlarged, and when the heat conducting oil flows into the heat dissipation cylinder 28, the heat penetrates through the pipe wall of the oil guide pipe 21 and is transmitted into the water in the heat dissipation cylinder 28, so that the temperature of the heat conducting oil is reduced. Meanwhile, the motor 31 is started, the stirring paddle 33 is moved to rotate through the stirring shaft 32, the stirring paddle 33 rotates to stir the water in the heat dissipation cylinder 28, the water in the heat dissipation cylinder 28 is stirred uniformly, the temperature of the water in the heat dissipation cylinder 28 is kept consistent, and therefore the heat dissipation of the oil guide pipe 21 is prevented from being influenced by the local temperature gathering.

In the preferred technical scheme of the present invention, a metal tube 26 is sleeved on the middle portion of the oil conduit 21, a metal sheet 27 for supporting the heat exchange is fixed on the metal tube 26, and the metal sheet 27 is attached to the housing. The metal sheet 27 is attached to one side, close to the LED light source, of the shell, heat emitted by the LED light source is transmitted to the metal sheet 27 and then transmitted to the metal pipe 26 from the metal sheet 27, the heat is transmitted to heat conduction oil on the metal pipe 26 and taken away, the heat dissipation and cooling of the LED light source are achieved through the mode, the overall temperature in the shell is reduced, and the service life of the device is prolonged.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.

Claims

1. A method for improving a traditional LED car lamp is characterized by comprising the following steps:

s2, forming an inwards concave laser module mounting groove (110) on the top of the shell;

s3, providing a laser module, and installing the laser module in the installation groove (110);

2. A method of retrofitting a conventional LED vehicle light as set forth in claim 1, wherein:

the traditional LED automobile headlamp further comprises a lens module;

and S6, adjusting the focal length of the lens module.

3. A method of retrofitting a conventional LED vehicle light as set forth in claim 1, wherein:

the inside wall of mounting groove (110) is provided with annular chimb (123), the laser module includes laser shell (111), the lateral wall of laser shell (111) be equipped with annular chimb (123) looks adaptation ring groove (122), annular chimb (123) with ring groove (122) joint.

4. A retrofit method for a conventional LED vehicle lamp as set forth in claim 3, wherein:

the laser module further comprises a PCB (112), a laser tube (113), a fluorescent sheet (114), a light reflecting bowl (115) and a lens (116);

PCB board (112) set up in the inner diapire of laser shell (111), laser tube (113) install in PCB board (112), fluorescence piece (114) and reflector (115) superpose in laser tube (113), lens (116) inlay in the upper end of laser shell (111).

5. A retrofit method for a conventional LED vehicle lamp as set forth in claim 3, wherein:

a groove (120) is formed in the inner bottom of the laser shell (111), and the PCB (112) is embedded in the groove (120);

the top of the inner side wall of the laser shell (111) is provided with a clamping cavity (121), and the lens (116) is clamped in the clamping cavity (121).

6. A method of retrofitting a conventional LED vehicle light as set forth in claim 5, wherein:

the heat dissipation module comprises a heat pipe (109), and the lower end of the laser shell (111) is provided with an opening;

one end of the heat pipe (109) is tightly connected with the laser module, the other end of the heat pipe (109) is inserted into the laser shell (111) through the opening, and the pipe wall of the heat pipe (109) is tightly attached to the inner wall of the shell.

7. The method of claim 6 wherein the method of retrofitting a conventional LED vehicle light comprises:

the heat dissipation module further comprises a heat dissipation fan (107), the heat dissipation fan (23) is arranged at the bottom of the shell, and the lower end of the heat pipe (109) is connected with the heat dissipation fan (107).

8. A method of retrofitting a conventional LED vehicle light as set forth in claim 1, wherein:

the control method comprises the following steps:

9. A method of retrofitting a conventional LED vehicle light as set forth in claim 1, wherein:

the heat dissipation module comprises a plurality of heat conduction fins (25), an oil guide pipe (21), a heat dissipation fan (23), a circulating pump (29), a heat dissipation cylinder (28) and a mixing component, wherein the oil guide pipe (21) is closed to form a circulating oil path, the circulating pump (29) is connected to the circulating oil path, the oil guide pipe (21) extends to the inside of the laser module, a circular ring part (22) is arranged at the lower end of the oil guide pipe (21), the heat conduction fins (25) are arranged in a circular ring shape, the upper ends of the heat conduction fins (25) are embedded in the oil guide pipe (21) of the circular ring part (22), the oil guide pipe (21) penetrates through the heat dissipation cylinder (28), and the part, located in the heat dissipation cylinder (28), of the oil guide pipe (21) is bent and arranged in a circuitous way; a condenser (24) is fixed on the input end of the heat radiation fan (23), and the condenser (24) is also fixedly connected with the oil guide pipe (21) on the circular ring part (22) through a metal frame.

10. A retrofit method for a conventional LED vehicle light as set forth in claim 9, wherein; the middle part of oil pipe (21) is equipped with tubular metal resonator (26) in a sleeved manner, be fixed with on tubular metal resonator (26) and be used for setting up that heat exchange's sheetmetal (27), sheetmetal (27) laminating is on the casing.