LED lamp for replacing HiD hernia headlamp

Abstract

The LED lamp comprises a heat dissipation fan, a driving plate, a plug, a heat dissipation aluminum piece, a red copper substrate and light sources, the plug is located below the heat dissipation aluminum piece, the light sources are arranged on the two sides of the upper end of the red copper substrate and electrically connected with the driving plate, the heat dissipation aluminum piece comprises a fixing part, a heat dredging part and a clamping part, and the fixing part is located below the heat dissipation aluminum piece and electrically connected with the driving plate. The red copper substrate is fixed on the fixing part, the heat dredging part is provided with a plurality of groups of longitudinal heat dredging channels, the inner side of the clamping part is provided with a first accommodating cavity, the outer side of the clamping part is integrally provided with a chuck assembly, the cooling fan is arranged in the first accommodating cavity, and the heat dredging channels are located at the upper end of the first accommodating cavity and communicated with the first accommodating cavity. According to the Hid xenon headlamp, heat of the lamp body can be reduced, meanwhile, due to the fact that an LED lamp source is adopted on the upper portion of the Hid xenon headlamp, the illumination of an LED lamp can be achieved, a plug structure of an original Hid xenon headlamp is directly used at the position, the assembly structure of the Hid xenon headlamp does not need to be changed, and the Hid xenon headlamp is very easy to use.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile LED lamps, in particular to an LED lamp for replacing HiD xenon headlights. Background Art

[0002] The Hid xenon headlights in car headlights use high-voltage electricity to activate the xenon to emit arc light for illumination. When turned on, they generate very high heat, and the temperature inside the lamp body can reach 400 degrees. Such an environment can easily accelerate the aging of the reflector bowl and lens, resulting in reduced illumination. In addition, the illumination of Hid xenon headlights is lower than that of LED lamps, and the focusing ability is not strong. LED lamps have higher illumination and lower heat generation. Therefore, many cars that have installed Hid xenon headlights in the past few years want to replace them with LED lamps. The most effective way to do this is to use the original Hid xenon headlight plug structure, so there is no need to change the structure of the headlight assembly. The inner cavity of the original Hid xenon headlight plug is used to install a cooling fan and circuit board. If it is used directly, the heat dissipation effect will be poor. In particular, if the driver board is too close to the light source, the circuit board will be heated, causing functional damage. Therefore, this structure continues to be optimized and improved, which can not only meet the needs of improved illumination, but also meet the temperature requirements of LED lamps, while still using the original Hid xenon headlight assembly structure. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide an LED lamp for replacing HiD xenon headlights, so as to solve the technical problems mentioned in the background art.

[0004] In order to solve the technical problem, the present invention adopts the following technical solutions:

[0005] A LED lamp for replacing HiD xenon headlights, comprising a cooling fan, a drive board and a plug, and also comprising a cooling aluminum part, a copper base plate and a light source, wherein the plug is located below the cooling aluminum part, the light source is arranged on both sides of the upper end of the copper base plate and is electrically connected to the drive board, the cooling aluminum part comprises a fixing part, a heat dissipation part and a clamping part, the copper base plate is fixed on the fixing part, the heat dissipation part has a plurality of longitudinal heat dissipation channels, the inner side of the clamping part is provided with a first accommodating cavity, and the outer side is integrally formed with a chuck assembly, the cooling fan is arranged in the first accommodating cavity, the heat dissipation channel is located at the upper end of the first accommodating cavity and is connected to the first accommodating cavity, a second accommodating cavity is provided in the plug, the drive board is installed in the second accommodating cavity, and the side of the clamping part or the upper end of the plug is also provided with an air inlet channel connected to the first accommodating cavity.

[0006] Specifically, the heat dissipation portion includes a connecting piece and a heat dissipation fin. The heat dissipation fins are arranged longitudinally to form a heat dissipation channel between two heat dissipation fins. Multiple heat dissipation channels form a heat dissipation integrated area. The connecting piece is used to connect the chuck and transfer heat to the chuck.

[0007] Specifically, a transfer cavity is further provided at the upper end of the first accommodating cavity, and a transfer plate is provided in the transfer cavity. The upper end surface of the transfer plate is connected to the copper substrate. The transfer plate is used to connect the circuits on both sides of the copper substrate and electrically connect to the driving board below.

[0008] Specifically, the heat dissipation fan is provided with an outer ring air outlet area and an inner ring wind shielding area at positions corresponding to the heat dissipation channel and the adapter cavity, wherein the inner diameter ratio of the outer ring air outlet area to the inner ring wind shielding area is less than 1:3.

[0009] Specifically, a pin is further provided in the plug, and the pin is electrically connected to the driving board.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] The utility model arranges a heat dissipation aluminum part at the upper end of the plug, and a first accommodating cavity for installing a heat dissipation fan is arranged inside the heat dissipation aluminum part, and a second accommodating cavity for installing a driving board is arranged inside the plug. The driving board is located below the heat dissipation fan, and a heat dissipation channel is provided at the upper end of the heat dissipation aluminum part and an air inlet channel is provided on the side of the lower end. The heat dissipation fan blows air upward to disperse the heat conducted from the lamp source above the heat dissipation aluminum part toward the heat dissipation channel, thereby reducing the heat of the lamp body. At the same time, because the LED light source is used above, the illumination of the LED lamp can be achieved. The plug structure of the original Hid xenon headlamp is directly used here, and there is no need to change the Hid xenon headlamp assembly structure, which is very simple to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 : This is an exploded view of the overall structure of the LED lamp of this utility model;

[0013] Figure 2 : This is one of the three-dimensional diagrams of the overall structure of the LED lamp of the utility model in the assembled state;

[0014] Figure 3 : This is the second stereoscopic diagram of the overall structure of the LED lamp of the utility model in the assembled state;

[0015] Figure 4 : It is a top view of the utility model LED lamp;

[0016] Figure 5 :for Figure 4 Middle AA radial section;

[0017] Figure 6 :for Figure 4radial section of the middle BB;

[0018] Figure 7 : This is a schematic diagram of the heat dissipation aluminum structure in this utility model patent;

[0019] Figure 8 : This is a top view of the heat dissipation aluminum component in this utility model patent;

[0020] Figure 9 : A three-dimensional diagram (left) and a top view (right) of the cooling fan structure in this utility model patent;

[0021] In the figure: cooling fan 1, drive board 2, plug 3, heat dissipation aluminum part 4, copper base plate 5, light source 7, fixing part 41, heat dissipation part 42, clamping part 43, heat dissipation channel 421, first accommodating chamber 401, chuck assembly 402, second accommodating chamber 301, air inlet channel 402, connecting piece 410, heat dissipation fin 420, heat dissipation integrated area 400, adapter chamber 403, adapter plate 8, outer ring air outlet area 101, inner ring wind shield area 102, pin 31, arc surface structure 103. DETAILED DESCRIPTION

[0022] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0023] refer to Figures 1 to 9 :

[0024] The utility model discloses an LED lamp for replacing HiD xenon headlights, comprising a cooling fan 1, a driving board 2, a plug 3, a heat dissipation aluminum part 4, a copper base plate 5 and a light source 7. A plug 3 is installed below the heat dissipation aluminum part 4. The plug 3 is the original HiD xenon headlight plug 3 structure and can be adapted and installed without modifying the original HiD xenon headlight assembly structure. The light source 7 is arranged on both sides of the upper end of the copper base plate 5 and is electrically connected to the driving board 2. In this way, both sides can emit light to increase the illumination. The heat dissipation aluminum part 4 includes a fixing part 41, a heat dissipation part 42 and a clamping part 4 3. The copper substrate 5 is fixed to the inner side of the fixing part 41. Specifically, the upper end of the fixing part 41 has an open groove to facilitate the exposure of the light source 7 for light irradiation. The heat dissipation part 42 has multiple groups of longitudinal heat dissipation channels 421. The inner side of the clamping part 43 is provided with a first accommodating cavity 401, and the outer side is integrally formed with a chuck assembly 402. Compared with the traditional LED lamp structure, the chuck structure and the heat dissipation aluminum part 4 are designed as a separate part, which is more complicated to install. Here, the heat dissipation aluminum part 4 and the chuck are integrally formed. On the one hand, the installation steps are simplified, and on the other hand, the chuck can also take away some heat. Finally, the heat is dissipated through other components of the headlight assembly. Specifically, as a traditional HiD xenon headlight structure, the cooling fan 1 is directly installed in the inner cavity of the plug 3. Here, the cooling fan 1 is arranged in the first accommodating cavity 401, that is, installed in the inner cavity of the heat dissipation aluminum part 4. The heat dissipation channel 421 is located at the upper end of the first accommodating cavity 401 and communicates with the first accommodating cavity 401. A second accommodating cavity 301 is provided in the plug 3, and the drive plate 2 is installed in the second accommodating cavity 301. The side of the clamping portion 43 is also provided with an air inlet channel 400 communicating with the first accommodating cavity 401. 2. In some cases, the air inlet channel 402 is arranged above the plug 3, so that it is easy to avoid the casing of the cooling fan 1. With such an arrangement, in terms of the heat dissipation structure, in this LED lamp, the cooling fan 1 is located between the copper substrate 5 and the driver board 2, and the cooling fan 1 blows upward. On the one hand, the wind enters from the air inlet channel 402 on the side of the heat dissipation aluminum part 4 and blows upward through the heat dissipation fan 1, and finally blows upward through the heat dissipation channel 421 on the heat dissipation part 42 of the heat dissipation aluminum part 4, taking away the heat while the wind can isolate the heat transferred from the upper copper substrate 5 and the heat dissipation aluminum part 4, thereby ensuring the long-term operation of the driver board 2.

[0025] Specifically, in order to improve the heat dissipation efficiency, the heat dissipation portion 42 includes a connecting piece 410 and a heat dissipation fin 420. The heat dissipation fins 420 are arranged longitudinally and arranged in a circular pattern or in an arc shape or in a straight line inside the heat dissipation aluminum part 4. The gap between the two heat dissipation fins 420 forms a heat dissipation channel 421. The plurality of heat dissipation channels 421 form a heat dissipation integrated area 400. Normally, a heat dissipation aluminum part 4 is composed of two half-pieces of the heat dissipation aluminum part 4. The two half-pieces of the heat dissipation aluminum part 4 are spliced ​​together to form a complete heat dissipation aluminum part 4. In this way, 1-2 groups of heat dissipation integrated areas 400 are set on the heat dissipation aluminum part 4 on each side, and there are 3-4 heat dissipation integrated areas 400 around the entire heat dissipation aluminum part 4, so that the entire LED body can be surrounded. Preferably, four groups of heat dissipation integrated areas 400 are integrated on the heat dissipation aluminum part 4, and the four groups of heat dissipation integrated areas 400 are distributed around the circumference at an angle of 90 degrees. In this way, the wind blown from the heat dissipation fan 1 can be evenly dispersed and take away the heat on the heat dissipation fins 420. The connecting piece 410 is used to connect the chuck and transfer heat to the chuck. Of course, the connecting piece 410 also plays a supporting role.

[0026] Specifically, in order to reduce the wiring of the internal positive and negative circuits, a transfer chamber 403 is further provided at the upper end of the first accommodating chamber 401. A transfer plate 8 is provided in the transfer chamber 403. The upper end surface of the transfer plate 8 is connected to the copper substrate 5. The transfer plate 8 is used to connect the circuits on both sides of the copper substrate 5 and is electrically connected to the driving board 2 below. Therefore, it is only necessary to electrically connect the transfer plate 8 to the driving board 2 below.

[0027] Specifically, for the structure of the heat dissipation aluminum part 4, the heat conducted downward by the fixing part 41 will be conducted downward and outward along the heat dissipation fins 420 and the connecting piece 410, and the heat dissipation fan 1 is directly above the copper substrate 5, and there is no air outlet channel on the copper substrate 5. Therefore, in view of the structure of the traditional heat dissipation fan 1, an improvement is made here. Specifically, the heat dissipation fan 1 is provided with an outer ring air outlet area 101 and an inner ring wind shield area 102 at positions corresponding to the heat dissipation channel 421 and the adapter cavity 403, respectively, wherein the inner diameter ratio of the outer ring air outlet area 101 to the inner ring wind shield area 102 is less than 1:3, preferably 1:4, that is, the heat dissipation air When the fan 1 blows air upward, the wind force is mainly concentrated in the outer ring area, which just corresponds to the position of the heat dissipation fins 420 or the position of the heat dissipation channel 421 above. The wind force can be concentrated to take away the heat on the heat dissipation fins 420 through the heat dissipation channel 421, thereby forming an outer ring convection to improve the heat dissipation efficiency. The area directly above the cooling fan 1 is prone to form positive pressure due to the smaller wind force, and the outer ring wind force is larger to form negative pressure. At this time, the internal heat will be taken away by the negative pressure of the outer ring area. This reciprocating cycle, the entire heat dissipation aluminum part 4 cooperates with the divergent blowing of the cooling fan 1 to complete the cooling of the entire LED lamp body.

[0028] As a subsequent improved embodiment, in order to further enable the fan structure to achieve a divergent blowing from the inside to the outside, here, the fan blades of the heat dissipation fan 1 have an arc surface structure 103, and the arc surface is opened upward. With such a configuration, when the fan blades rotate, whether clockwise or counterclockwise, they can rotate obliquely upward with the air, and after rotation, they reach the upper end of the first accommodating chamber 401 and rotate into the heat dissipation channel 421, thereby forming a faster heat dissipation wind system.

[0029] Specifically, a pin 31 is further provided in the plug 3 , and the pin 31 is electrically connected to the driving board 2 . Here, the pin 31 is connected to one of the electrodes in the driving board 2 .

[0030] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. An LED lamp for replacing HiD headlights, comprising a cooling fan, a driver board, and a plug, characterized in that: It also includes a heat dissipation aluminum part, a copper base plate and a light source, wherein the plug is located below the heat dissipation aluminum part, the light source is arranged on both sides of the upper end of the copper base plate and is electrically connected to the drive board, the heat dissipation aluminum part includes a fixing part, a heat dissipation part and a clamping part, the copper base plate is fixed on the fixing part, the heat dissipation part has a plurality of longitudinal heat dissipation channels, the inner side of the clamping part is provided with a first accommodating cavity, and the outer side is integrally formed with a chuck assembly, the heat dissipation fan is arranged in the first accommodating cavity, the heat dissipation channel is located at the upper end of the first accommodating cavity and is connected to the first accommodating cavity, a second accommodating cavity is provided in the plug, the drive board is installed in the second accommodating cavity, and the side of the clamping part or the upper end of the plug is also provided with an air inlet channel connected to the first accommodating cavity.

2. The LED lamp for replacing HiD headlights according to claim 1, characterized in that: The heat dissipation portion includes a connecting piece and a heat dissipation fin. The heat dissipation fins are arranged longitudinally to form a heat dissipation channel between two heat dissipation fins. Multiple heat dissipation channels form a heat dissipation integrated area. The connecting piece is used to connect the chuck and transfer heat to the chuck.

3. The LED lamp for replacing HiD headlights according to claim 1, characterized in that: A transfer cavity is further provided at the upper end of the first accommodating cavity. A transfer plate is provided in the transfer cavity. The upper end surface of the transfer plate is connected to the copper substrate. The transfer plate is used to connect the circuits on both sides of the copper substrate and electrically connect to the driving board below.

4. The LED lamp for replacing HiD headlights according to claim 1, characterized in that: The heat dissipation fan is respectively provided with an outer ring air outlet area and an inner ring wind shielding area at positions corresponding to the heat dissipation channel and the adapter cavity, wherein the inner diameter ratio of the outer ring air outlet area to the inner ring wind shielding area is less than 1:

3.

5. The LED lamp for replacing HiD headlights according to claim 1, characterized in that: The plug is further provided with a pin, which is electrically connected to the driving board.

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