CN220269209U - An LED car lamp used to replace xenon lamps - Google Patents

Abstract

The utility model belongs to the technical field of automobile illumination, and particularly relates to an LED car lamp for replacing a xenon lamp, which comprises a lamp body formed by mutually connecting a left lamp body and a right lamp body, a copper substrate and a heat pipe which are arranged in the lamp body, LED lamp beads arranged on two surfaces of the copper substrate, a radiator, a cooling fan and a PCB (printed circuit board); the left lamp body and the right lamp body are respectively provided with a lamp hole for exposing the LED lamp beads on the two surfaces of the copper substrate; the radiator is sleeved outside the copper substrate and the heat pipe, and the heat pipe is contacted with the inner wall of the radiator; the fan is arranged at one end of the copper substrate; by adopting the structure, compared with the existing similar LED lamps, the structure reduces the volume, can directly replace the xenon headlight on the existing vehicle, does not need to change the corresponding position of the vehicle, is convenient to install, and has wider application range.

Description

An LED car lamp used to replace xenon lamps

Technical field

The utility model relates to the technical field of automobile lighting, and specifically refers to an LED car lamp used to replace the xenon lamp commonly used in existing automobiles.

Background technique

Although more and more cars use LED lights for lighting, xenon bulbs are still widely used. They have several shortcomings. The first is that the startup speed is relatively slow. After the xenon lamp is turned on, the light slowly becomes brighter from dark to dark. It takes tens of seconds to a minute to reach the maximum brightness. This shortcoming has a great impact in actual use. For example, when meeting a car, the time to meet the car is relatively short, usually only a few seconds. In such a short period of time, the xenon bulb has not really turned on. Due to the dim light, the driver of the oncoming vehicle may not have taken corresponding actions in time because the light is not eye-catching. In this way, it will not be able to achieve a good meeting effect. ; The second is the center of the light source where the xenon bulb emits light. The temperature reaches 800-1000°C. Due to the high temperature, the bulb ages quickly. The life of the xenon bulb is about 3000 hours. Usually the brightness of the bulb will decrease after one year of use. , as the use time becomes longer, the brightness of the xenon bulb will become lower and lower, and the lighting effect will become worse and worse. If the car manufacturer uses LED headlights instead of xenon headlights, it only needs to redesign the corresponding position of the vehicle, without considering the space problem of the vehicle installation location of the headlights; but for vehicles that have already been manufactured and sold, because of the installation The space for the headlights has been fixed. If you want to use LED headlights to replace xenon headlights, you need to consider whether the installation space of the vehicle can just accommodate the LED headlights. Although some LED headlights are currently on the market for the modification of vehicle headlights, , but because of the difference between LED lamps and xenon lamps, that is, xenon lamps can naturally dissipate heat, while LED lamps require special heat dissipation structures, such as radiators, cooling fans, etc., and the radiator is generally installed at one end of the lamp body, resulting in The LED lamps currently used to replace xenon headlights in vehicles are large in size and cannot be directly installed in the existing space where xenon headlights are installed, resulting in poor adaptability.

Utility model content

In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide an LED car lamp for replacing xenon lamps.

In order to achieve the above purpose, the technical solution adopted by this utility model is: an LED car lamp used to replace a xenon lamp, including a lamp body formed by connecting a left lamp body and a right lamp body to each other, and a copper substrate arranged in the lamp body. And heat pipes, LED lamp beads located on both surfaces of the copper substrate, radiator, cooling fan, PCB board; the left lamp body and the right lamp body are each provided with a LED lamp bead on the two surfaces of the copper substrate to be exposed. the light hole; the radiator is set on the outside of the copper base plate and the heat pipe, and the heat pipe is in contact with the inner wall of the radiator; the cooling fan is set on one end of the copper base plate.

Specifically, the heat sink is integrally formed by a body and two heat dissipation parts; each heat dissipation part includes a number of heat dissipation fins, and a longitudinal perforation is provided in the body for the copper substrate and the heat pipe to pass through.

There are two heat pipes, which are respectively arranged on both sides of the copper substrate and attached to both sides of the copper substrate.

The left lamp body and the right lamp body are each provided with a heat dissipation hole, and two heat dissipation parts are respectively exposed from the two heat dissipation holes.

One end of the copper substrate on which the cooling fan is provided is provided with a mounting frame, and the cooling fan is installed in the mounting frame; the cooling fan is located inside one end of the lamp body.

It further includes a plug connected to one end of the built-in cooling fan of the lamp body; the plug includes a coaxial plug ring body and a plug barrel integrally formed with it; the end of the lamp body is inserted into the plug barrel ;The PCB board is installed in the plug-in ring.

The end of the lamp body is provided with several notches for dissipating the heat inside the lamp body when the cooling fan is started.

Technical effect: The LED car light of the present invention has a radiator installed in the lamp body, and the two heat dissipation parts are exposed from the two heat dissipation holes respectively, and the radiator is sleeved on the outside of the copper substrate and the heat pipe, and the inner wall of the radiator Being in contact with the heat pipe facilitates timely dissipation of the heat generated by the LED lamp beads through the radiator. This structure reduces the size compared to existing similar LED lamps and can directly replace the xenon headlights on existing vehicles. There is no need to change the corresponding position of the vehicle. It is not only easy to install, but also has a wider range of applications.

Description of drawings

Figure 1 is a front view of an embodiment of the present utility model;

Figure 2 is a left view of the embodiment of the present utility model;

Figure 3 is a perspective view of an embodiment of the present utility model;

Figure 4 is a perspective view from another perspective of the embodiment of the present utility model;

Figure 5 is an exploded view of the embodiment of the present utility model.

Reference signs: left lamp body - 1, right lamp body - 2, copper substrate - 3, installation frame - 301, heat pipe - 4, LED lamp bead - 5, radiator - 6, body - 601, longitudinal perforation - 601a , heat dissipation part-602, heat sink-602a, cooling fan-7, light hole-8, heat dissipation hole-9, plug-10, plug-in ring-1001, plug-in barrel-1002, buckle-1003, notch- 11. PCB board-12, chuck-13, clamping gap-1301.

Detailed ways

In order to enable those skilled in the art to better understand the solution of the present utility model, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments.

As shown in Figures 1, 2, and 5, embodiments of the present invention provide an LED car lamp for replacing xenon lamps, which is used to directly replace xenon lamps on vehicles without any changes to the structure of the vehicle headlights. , easy to install; it includes a lamp body, which is formed by connecting the left lamp body 1 and the right lamp body 2 to each other, a copper substrate 3 and a heat pipe 4 arranged in the lamp body, and LED lamp beads 5 arranged on both surfaces of the copper substrate. Radiator 6, cooling fan 7, PCB board 12; in order to make the light of the LED lamp beads emit, there is an LED lamp bead 5 on the two surfaces of the left lamp body 1 and the right lamp body 2 respectively for the copper substrate. Exposed lamp hole 8; in order to adapt to the structure of the vehicle, a chuck 13 is also provided on the outer wall of the lamp. The chuck is distributed on the outer walls of the left lamp body 1 and the right lamp body 2. There are There are several snap-in gaps 1301.

As shown in Figure 5, in this embodiment, the radiator 6 is set on the outside of the copper substrate 3 and the heat pipe 4, and the heat pipe is in contact with the inner wall of the radiator; the cooling fan 7 is set on one end of the copper substrate 3, where The cooling fan is next to the radiator 6. The left lamp body 1 and the right lamp body 2 are each provided with a heat dissipation hole 9, and two heat dissipation parts 602 are respectively exposed from the two heat dissipation holes.

As shown in Figure 5, the heat sink 6 is integrally formed by a body 601 and two heat dissipation parts 602; each heat dissipation part includes a number of heat dissipation fins 602a, and a hole is provided in the body for the copper substrate 3 and the heat pipe 4 to pass through. Longitudinal perforations 601a; the radiator used here has a cylindrical shape as a whole.

Specifically, as shown in Figures 3-4, there are two heat pipes 4, which are respectively provided on both sides of the copper substrate 3 and are attached to both sides of the copper substrate. The heat pipe has excellent thermal conductivity and is soldered to the side of the copper substrate 3 using solder paste.

The left lamp body 1 and the right lamp body 2 are made of aviation aluminum. They are light in weight and have good thermal conductivity. They play the role of fixing and positioning other structural parts. There are lamps on both of them at positions corresponding to the LED lamp beads 5. Hole 8 allows the LED lamp bead 5 to be exposed so that the light of the LED lamp bead 5 can be emitted normally. Both are provided with heat dissipation holes 9 at corresponding positions to the radiator 6 to expose the radiator 6 for ventilation and heat dissipation; on the left The positions where the two heat pipes 4 are installed in the lamp body 1 and the right lamp body 2 are made into circular grooves so that the inner wall of the lamp is close to the heat pipe 4, and thermal conductive paste is applied to the heat pipe 4 and the circular groove so that the heat pipe 4 The heat is easily transferred to the lamp body, allowing the lamp body to dissipate part of the heat to achieve a certain heat dissipation effect; the left lamp body 1 is provided with two through holes, and the right lamp body 2 is provided with two threaded holes for screws to pass through. Pass through the left lamp body, and then through the copper substrate 3, clamp the copper substrate 3 and the heat pipe 4, and tighten the screws through the threaded holes of the right lamp body 2 to form a whole.

As shown in Figure 5, one end of the copper substrate 3 where the cooling fan 7 is installed is provided with a mounting frame 301, and the cooling fan is installed in the mounting frame; the cooling fan is located inside one end of the lamp body.

It further includes a plug 10 connected to one end of the built-in cooling fan of the lamp body, that is, this end of the lamp body is connected to the plug; the plug includes a coaxial plug ring body 1001 and a plug barrel 1002 formed integrally with it; This end of the lamp body is inserted into the plug barrel; the PCB board 12 is installed in the plug ring body 1001.

The plug 10 is also fixed on the left and right lamp bodies through two screws, so that the plug 10 and the lamp body become a whole. A chuck 13 is provided on the outer wall of the lamp, and a plurality of clamping notches 1301 are provided on the chuck. The diameter and size of the notches are It corresponds exactly to the original car lamp holder, that is, the LED lamp is fixed on the car lamp holder through the chuck.

The plug 10 is made of high-temperature resistant fiberglass plastic, with two copper electrodes on it for transmitting current and plugging into the original car ballast light interface; the outer wall of the plug ring body 1001 is provided with a structure for fixing the LED light to the original There is a buckle 1003 on the car socket, and two transverse screw holes are provided in the plug ring body 1001, which are used to fix the plug 10 and the left lamp body 1 and the right lamp body 2 together respectively. The PCB board 12 is used to rectify and filter the AC power output by the original car ballast into a stable DC power to supply power to the LED lamp beads 5. The PCB board 12 is connected to the plug 10 through two wires.

This end of the lamp body is provided with a number of notches 11, that is, the lamp body is the end connected to the plug, for dissipating the heat inside the lamp body when the cooling fan 7 is started.

There are three soldering pads at the bottom of the LED lamp bead 5. The larger one in the middle is a thermally conductive pad. The thermally conductive pad has nothing to do with the circuit. The thermally conductive pad is directly welded to the copper body of the copper substrate 3 with solder paste, which greatly reduces the thermal resistance and has high efficiency. The thermal conductivity effect is to quickly transfer the heat generated by the LED lamp bead 5 to the copper substrate 3 through the thermal conductive pads to ensure that the LED lamp bead 5 works stably at a lower temperature. The other two small pads are LED lamps. The positive and negative poles of the beads are used for power supply.

The radiator 6 is made of aviation aluminum, which has good thermal conductivity and heat dissipation. The surface plating is solderable. It is welded to the two heat pipes 4 with solder paste. The heat from the heat pipes can be quickly transferred to the radiator 6. The radiator 6 Many thin heat sinks 602a are made on both sides, which greatly increases the surface area of the radiator, thereby enhancing the heat dissipation effect.

LED lamps themselves have advantages that xenon lamps do not have. However, because the two have different characteristics, LED lamps require a special heat dissipation structure. As a result, the volume of LED lamps is larger than that of xenon lamps, making it difficult to directly control xenon lamps on vehicles. Replacement, such as directly using existing LED car lights to modify the vehicle, means that the location of the headlights on the existing vehicle must be modified to adapt to the installation of the existing LED car lights. Not only is the installation inconvenient, but it also requires changes to the vehicle. If it is too large, it will affect the safety of the vehicle; while the LED car light of the present invention adopts a redesigned structure, the volume is reduced, and the xenon lamp can be replaced at a ratio of 1:1 without changing the vehicle. It is easy to install and has a wide range of applications.

In the above description, it should be noted that the terms "installation", "connection", "connection" and other corresponding terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can It can be a direct connection, or it can be an indirect connection through an intermediary, or it can be an internal connection between two components; "located in" should be understood as "installed on, set on", including fixed installation, movable installation and other installation methods.

Obviously, the above-described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. The drawings show preferred embodiments of the present utility model, but do not limit the patent scope of the present utility model. The present invention may be implemented in many different forms; rather, these embodiments are provided to provide a thorough and comprehensive understanding of the disclosure of the present invention. Any equivalent structure made using the contents of the description and drawings of the present utility model and used directly or indirectly in other related technical fields shall likewise fall within the scope of patent protection of the present utility model.

Claims (7)

1. The LED car lamp for replacing the xenon lamp comprises a lamp body formed by mutually connecting a left lamp body (1) and a right lamp body (2), a copper substrate (3) and a heat pipe (4) which are arranged in the lamp body, LED lamp beads (5) arranged on two surfaces of the copper substrate, a radiator (6), a cooling fan (7) and a PCB (printed circuit board) (12); the left lamp body (1) and the right lamp body (2) are respectively provided with a lamp hole (8) for exposing the LED lamp beads (5) on the two surfaces of the copper substrate; the heat radiator is characterized in that the heat radiator is sleeved outside the copper substrate (3) and the heat pipe (4), and the heat pipe is contacted with the inner wall of the heat radiator; the heat radiation fan (7) is arranged at one end of the copper substrate (3).

2. The LED car light for replacing a xenon lamp according to claim 1, characterized in that the radiator (6) is formed by integrally molding a body (601) and two radiating parts (602); each radiating part comprises a plurality of radiating fins (602 a), and a longitudinal perforation (601 a) for the copper substrate (3) and the heat pipe (4) to pass through is arranged in the body.

3. The LED car lamp for replacing xenon lamp according to claim 2, wherein the number of the heat pipes (4) is two, and the heat pipes are respectively arranged at two sides of the copper substrate (3) and are attached to two side surfaces of the copper substrate.

4. The LED car lamp for replacing xenon lamp according to claim 2, wherein a heat dissipation hole (9) is respectively arranged in the left lamp body (1) and the right lamp body (2), and two heat dissipation parts (602) are respectively exposed from the two heat dissipation holes.

5. An LED car lamp for replacing a xenon lamp according to claim 2, characterized in that one end of the copper substrate (3) provided with a heat radiation fan (7) is provided with a mounting frame (301), and the heat radiation fan is mounted in the mounting frame; the heat radiation fan is positioned in one end of the lamp body.

6. An LED lamp for replacing a xenon lamp according to claim 5, further comprising a plug (10) connected to one end of a radiator fan inside the lamp body; the plug comprises a coaxial plug ring body (1001) and a plug cylinder (1002) integrally formed with the coaxial plug ring body; the end of the lamp body is inserted into the plug tube; the PCB (12) is installed in the plug ring body (1001).

7. An LED lamp for replacing a xenon lamp according to claim 6, characterized in that the end of the lamp body is provided with notches (11) for dissipating heat from the inside of the lamp body when the radiator fan (7) is activated.