Low-energy-consumption LED automobile headlamp

Abstract

The low-energy-consumption LED automobile headlamp comprises LED lamp beads, a lamp bead supporting piece, an installation base, a heat dissipation piece and a fan, a fixing hole is formed in the front end of the installation base, and a protruding flow guide heat dissipation part is arranged at the rear end of the installation base; the heat dissipation piece is tubular and is arranged on the flow guide heat dissipation part in a sleeving mode, and heat dissipation holes in an annular array are formed in the end, connected with the rear end of the installation base, of the heat dissipation piece. A heat conduction seat is arranged at the tail end of the lamp bead supporting piece, and a protruding fixing part on the heat conduction seat is connected with a fixing hole in the installation seat. The heat conduction seat can conduct heat generated by the LED lamp beads to the installation seat, the flow guide heat dissipation part at the rear end of the installation seat and the heat dissipation piece dissipate heat at the same time, the heat dissipation fins on the flow guide heat dissipation part can guide flow blown by a fan to the heat dissipation holes in the front end of the heat dissipation piece to flow out, air enters the tail end, air exits the front end, the size of the heat dissipation holes is reduced, air pressure is increased, and heat dissipation efficiency is improved. Heat dissipation efficiency is improved, and energy consumption of the fan is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile headlights, and specifically relates to a low-energy consumption LED automobile headlight. Background Art

[0002] Car headlights are one of the important parts of a car and can provide lighting for the driver at night. In the prior art, LED headlights are already very popular, but the LED modules in the headlights will generate a lot of heat, and the heat will accumulate. The continuous temperature will easily burn out the LED lamp beads. In the prior art, a heat sink and a fan are provided, and the heat is transferred to the heat sink. The fan cools the heat sink, but the heat dissipation efficiency is not high. First, the heat cannot be fully and quickly transferred to the surface blown by the fan, and second, the heat dissipation area is not large enough. The long strip holes in the annular array on the surface of the heat sink will reduce the wind pressure of the fan blown wind due to their long size. The wind blowing intensity on the connection between the heat sink and the mounting seat is not enough, and the heat removal efficiency is low. The usual solution is to increase the power of the fan, but it will increase energy consumption, and the fan will also generate heat by itself. In order to solve this problem, a low-energy LED car headlight is provided. Utility Model Content

[0003] In view of this, the technical problem to be solved by the utility model is to provide a low-energy consumption LED automobile headlight, which solves the problems of poor heat dissipation efficiency and high energy consumption in the prior art.

[0004] In order to solve the above technical problems, the utility model discloses a low-energy LED automobile headlight, comprising: LED lamp beads, lamp bead support members, a mounting seat, a heat sink and a fan, wherein the lamp bead support member is arranged at the front end of the mounting seat, the LED lamp beads are arranged on the lamp bead support member, the heat sink is arranged at the rear end of the mounting seat, and the fan is arranged at the tail end of the heat sink; the front end of the mounting seat is provided with a fixing hole, and the rear end thereof is provided with a raised flow-guiding and heat-dissipating portion; the heat sink is tubular, and one end thereof, which is sleeved on the flow-guiding and heat-dissipating portion and connected to the rear end of the mounting seat, is provided with a circular array of heat-dissipating holes; the tail end of the lamp bead support member is provided with a heat-conducting seat, and the raised fixing portion on the heat-conducting seat is connected to the fixing hole on the mounting seat.

[0005] Furthermore, the fixing hole extends to the interior of the air-guiding and heat-dissipating portion.

[0006] Furthermore, the above-mentioned air-guiding and heat-dissipating part is in the shape of a cone, and a ring-shaped array of heat-dissipating fins is arranged on its surface.

[0007] Furthermore, the outer surface of the heat sink is provided with a ring-shaped array of heat dissipation strips, and a plurality of heat dissipation grooves are provided on the heat dissipation strips.

[0008] Furthermore, the three heat dissipation grooves divide the heat dissipation strip into four heat dissipation fins, wherein the depth of the middle heat dissipation groove is deeper than the depth of the heat dissipation grooves on both sides.

[0009] Furthermore, the heat-conducting seat is in the shape of a cone, and its rear end surface is in contact with the front end surface of the mounting seat.

[0010] Compared with the prior art, the present application can obtain the following technical effects:

[0011] The heat conducting seat on the utility model can conduct the heat generated by the LED lamp beads to the mounting seat, and the guide heat dissipation part at the rear end of the mounting seat and the heat sink dissipate heat simultaneously, and the heat dissipation fins on the guide heat dissipation part can guide the air blown by the fan to the heat dissipation holes at the front end of the heat sink to flow out, with air entering at the rear end and exiting at the front end. The size of the heat dissipation holes is reduced, the wind pressure is increased, the heat dissipation efficiency is improved, and the energy consumption of the fan is reduced.

[0012] Of course, any product implementing this application does not necessarily need to achieve all of the technical effects described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0014] Figure 1 is a cross-sectional schematic diagram of a vehicle lamp module according to one embodiment of the utility model;

[0015] Figure 2 is a schematic diagram of a heat sink of an embodiment of the utility model from a first perspective;

[0016] Figure 3 It is a schematic diagram of a heat sink of an embodiment of the present invention from a second perspective.

[0017] Figure ID

[0018] LED lamp bead 1, lamp bead support 2, mounting seat 3, heat sink 4, fan 5, fixing hole 6, diversion and heat dissipation part 7, heat dissipation hole 8, thermal seat 9, heat dissipation fin 10, heat dissipation bar 11, heat dissipation groove 12. DETAILED DESCRIPTION

[0019] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0020] Please refer to Figures 1 to 3 , Figure 1 is a cross-sectional schematic diagram of a vehicle lamp module according to one embodiment of the utility model; Figure 2 is a schematic diagram of a heat sink of an embodiment of the utility model from a first perspective; Figure 3 It is a schematic diagram of a heat sink of an embodiment of the present invention from a second perspective.

[0021] A low-energy LED automobile headlight comprises: an LED lamp bead 1, a lamp bead support 2, a mounting seat 3, a heat sink 4 and a fan 5. The lamp bead support 2 is arranged at the front end of the mounting seat 3, the LED lamp bead 1 is arranged on the lamp bead support 2, the heat sink 4 is arranged at the rear end of the mounting seat 3, and the fan 5 is arranged at the tail end of the heat sink 4; the front end of the mounting seat 3 is provided with a fixing hole 6, and the rear end thereof is provided with a raised flow-guiding and heat-dissipating portion 7; the heat sink 4 is tubular, and one end of the heat sink 4, which is sleeved on the flow-guiding and heat-dissipating portion 7 and connected to the rear end of the mounting seat 3, is provided with a circular array of heat-dissipating holes 8; the tail end of the lamp bead support 2 is provided with a heat-conducting seat 9, and the raised fixing portion on the heat-conducting seat 9 is connected to the fixing hole 6 on the mounting seat 3.

[0022] The fixing hole 6 extends to the interior of the air-conducting and heat-dissipating part 7; the air-conducting and heat-dissipating part 7 is conical, and a circular array of heat-dissipating fins 10 are arranged on its surface; the outer surface of the heat dissipating element 4 is provided with a circular array of heat-dissipating strips 11, and a plurality of heat-dissipating grooves 12 are arranged on the heat-dissipating strips 11; the three heat-dissipating grooves 12 divide the heat-dissipating strips into four heat-dissipating fins 10, wherein the depth of the middle heat-dissipating groove 12 is deeper than the depth of the heat-dissipating grooves 12 on both sides; the heat-conducting seat 9 is conical, and its rear end face is in contact with the front end face of the mounting seat 3.

[0023] To sum up, the thermal conductive seat 9 on the utility model can conduct the heat generated by the LED lamp bead 1 to the mounting seat 3, and the guide heat dissipation part 7 at the rear end of the mounting seat 3 and the heat sink 4 dissipate heat simultaneously, and the heat dissipation fins 10 on the guide heat dissipation part 7 can guide the air blown by the fan 5 to the heat dissipation hole 8 at the front end of the heat sink 4 for outflow, with the air entering at the tail end and exiting at the front end. The size of the heat dissipation hole 8 is reduced, the wind pressure is increased, the heat dissipation efficiency is improved, and the energy consumption of the fan 5 is reduced.

[0024] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A low energy consumption LED automobile headlight, comprising: LED lamp beads, lamp bead support members, mounting bases, heat sinks and fans. The front end of the mounting base is provided with a lamp bead support member, the LED lamp beads are arranged on the lamp bead support member, the rear end of the mounting base is provided with a heat sink, and the fan is arranged at the rear end of the heat sink; It is characterized in that a fixing hole is provided at the front end of the mounting seat, and a raised air-conducting and heat-dissipating portion is provided at the rear end thereof; the heat sink is tubular, and is sleeved on the air-conducting and heat-dissipating portion and is provided with a circular array of heat-dissipating holes at one end connected to the rear end of the mounting seat; a thermal conductive seat is provided at the tail end of the lamp bead support, and a raised fixing portion on the thermal conductive seat is connected to the fixing hole on the mounting seat.

2. The low energy consumption LED automobile headlight according to claim 1, characterized in that: The fixing hole extends to the interior of the air-guiding and heat-dissipating part.

3. The low energy consumption LED automobile headlight according to claim 2, characterized in that: The air-guiding and heat-dissipating part is in a cone shape, and a ring-shaped array of heat-dissipating fins is arranged on the surface of the cone.

4. The low energy consumption LED automobile headlight according to claim 1, characterized in that: The outer surface of the heat sink is provided with a ring-shaped array of heat dissipation strips, and the heat dissipation strips are provided with a plurality of heat dissipation grooves.

5. The low energy consumption LED automobile headlight according to claim 4, characterized in that: The three heat dissipation grooves divide the heat dissipation strip into four heat dissipation fins, wherein the depth of the middle heat dissipation groove is deeper than the depth of the heat dissipation grooves on both sides.

6. The low energy consumption LED automobile headlight according to claim 1, characterized in that: The heat conducting seat is in the shape of a cone, and its rear end surface is in contact with the front end surface of the mounting seat.

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