LED steering lamp provided with heating plate

Abstract

The utility model provides an LED steering lamp provided with a heating plate. The LED steering lamp comprises a shell, a reflector, a lampshade, an LED light source, a circuit board and the heating plate. A through hole for containing the LED light source is formed in the light reflecting plate, the LED light source is embedded in the through hole of the light reflecting plate, and the LED light source and the light reflecting plate are both arranged in a cavity defined by the lampshade and the shell. The heating plate comprises a base plate, a resistance wire laid on the base plate, and a first pin and a second pin which are connected with the two ends of the resistance wire respectively; the first pin of the heating plate serves as a current inlet interface, the second pin of the heating plate serves as a current outlet interface, and the heating plate and the LED light source are connected to the circuit board in series. The heating plate can simulate the power level of the halogen lamp under the condition that extra energy consumption is not increased, the vehicle fault alarm phenomenon caused by insufficient power is avoided, heat can be rapidly dissipated, and the fault risk caused by too high temperature is reduced.

Description

Technical Field

[0001] This utility model relates to the field of LED turn signal technology, specifically to an LED turn signal equipped with a heating plate. Background Technology

[0002] With the continuous advancement and development of automotive technology, the upgrading of lighting systems has been particularly significant. Traditional halogen lamps, due to their low luminous efficiency, high energy consumption, and short lifespan, have gradually been replaced by new LED turn signals. LED turn signals have become the market mainstream due to their high efficiency, energy saving, long lifespan, and environmental friendliness. However, in practical applications, especially in replacing existing halogen lamps, some technical challenges have been encountered.

[0003] Traditional halogen lamps have high power consumption. When replacing them with lower-power LED turn signals, the required power is usually much lower than that of halogen lamps due to the difference in the working principle and luminous efficiency of LED turn signals. While this power reduction helps save energy, it also brings a new problem: due to the monitoring mechanism of the vehicle's electronic system, if the power of the LED turn signal is too low, the vehicle's electronic control system will misjudge it as a lighting malfunction and trigger a fault alarm, affecting the driving experience.

[0004] To address this issue, a solution called "gold resistor" has emerged on the market. By adding a gold resistor to the LED turn signal circuit, the power consumption of a halogen lamp can be simulated, thus avoiding fault alarms caused by insufficient power. This resistor typically has high power handling capacity and stability, capable of simulating high power consumption at low current to meet the testing requirements of vehicle electronic systems. However, this gold resistor operates at extremely high temperatures, exceeding 250°C, which introduces new safety hazards. High temperatures can not only degrade the resistor's own performance but also accelerate the aging of surrounding materials, potentially leading to serious consequences such as fires. Furthermore, high temperatures can affect the lifespan and stability of LED chips, reducing the reliability of the entire lighting system. Utility Model Content

[0005] To address the issues of fault alarms caused by insufficient power after replacing halogen lamps with LED turn signals, as well as the stability and safety of the entire system, this invention provides an LED turn signal equipped with a heating plate. This not only meets the testing requirements of the vehicle's electronic system but also avoids generating excessive heat, thereby improving the overall performance of the LED turn signal.

[0006] This utility model achieves the above-mentioned technical objectives through the following technical means.

[0007] An LED turn signal equipped with a heating plate includes a housing, a reflector, a lamp cover, an LED light source, a circuit board, and a heating plate. The reflector has a through hole for accommodating the LED light source, which is embedded in the through hole. Both the LED light source and the reflector are disposed within a cavity formed by the lamp cover and the housing. The heating plate includes a substrate, a resistance wire laid on the substrate, and a first pin and a second pin connected to the two ends of the resistance wire, respectively. The heating plate uses the first pin as a current inlet and the second pin as a current outlet, and is connected in series with the LED light source on the circuit board.

[0008] Furthermore, the resistance wire is arranged in a serpentine pattern on the substrate.

[0009] Furthermore, the resistance wire includes a first heat dissipation part and a second heat dissipation part arranged symmetrically from left to right, and a third heat dissipation part and a fourth heat dissipation part arranged symmetrically from top to bottom; the first heat dissipation part, the second heat dissipation part, the third heat dissipation part and the fourth heat dissipation part are all arranged in a serpentine pattern and form a current circulation path; the first pin and the second pin are arranged adjacent to each other on the first heat dissipation part / second heat dissipation part / third heat dissipation part / fourth heat dissipation part.

[0010] Furthermore, the resistance wires are spirally distributed on the substrate.

[0011] Furthermore, let the power of the heating plate and the LED light source be P1 and P2 respectively, and the maximum power required to trigger the fault alarm due to low power be P3. P1, P2 and P3 satisfy: P1+P2≥P3.

[0012] Furthermore, a lens is installed at the front end of the LED light source, and a cooling fan is provided on one side of the lens.

[0013] Furthermore, the substrate is made of aluminum or copper.

[0014] Furthermore, the heating plate is fixedly installed on the inner wall of the housing.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. This utility model can simulate the power level of halogen lamps without increasing additional energy consumption by installing a heating plate with resistance wire in series on the circuit board. This avoids vehicle malfunction alarms caused by insufficient power, reduces driver distress, and improves driving comfort and peace of mind.

[0017] 2. The heating plate in this utility model can not only replace the original gold resistor to ensure the overall power level of the LED turn signal, but also dissipate heat quickly, reducing the risk of failure due to excessive temperature. It also reduces the possibility of material aging or damage caused by high temperature, thus improving overall safety.

[0018] 3. Since the heating plate in this utility model is directly mounted on the housing rather than on the circuit board, the heating plate no longer occupies the space of the circuit board. This not only makes the circuit board design more compact and reduces the complex wiring on the circuit board, but also prevents the heat generated by the heating plate from being directly transferred to the circuit board, thereby improving the stability and service life of the circuit board. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the heating plate described in Embodiment 1 of this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of the heating plate described in Embodiment 2 of this utility model.

[0021] Figure 3 This is a schematic diagram of the structure of the heating plate described in Embodiment 3 of this utility model.

[0022] The attached figures are labeled as follows:

[0023] 1-Substrate; 2-Resistance wire; 3-First pin; 4-Second pin. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0025] Example 1

[0026] The LED turn signal equipped with a heating plate described in this embodiment includes a housing, a reflector, a lamp cover, an LED light source, a circuit board, and a heating plate.

[0027] The reflector has through holes for accommodating LED light sources, which are embedded within these holes. Both the LED light source and the reflector are housed within the cavity formed by the lampshade and the housing. A lens is mounted at the front end of the LED light source, and a cooling fan is located on one side of the lens.

[0028] The heating plate is fixedly installed on the inner wall of the housing and includes a copper substrate 1, a resistance wire 2 laid on the substrate 1, and a first pin 3 and a second pin 3 respectively connected to both ends of the resistance wire 2. Figure 1 The figure shows a schematic diagram of the heating plate described in this embodiment. The resistance wire 2 is arranged in a serpentine pattern on the substrate 1. The heating plate uses the first pin 3 as the current inlet and the second pin 4 as the current outlet, and is connected in series with the LED light source on the circuit board. Let the power of the heating plate and the LED light source be P1 and P2, respectively. The maximum power required to trigger a fault alarm due to low power is P3. P1, P2, and P3 satisfy: P1 + P2 ≥ P3.

[0029] This embodiment uses LED turn signals instead of traditional halogen lamps, which greatly reduces energy consumption. At the same time, it uses a heating plate instead of traditional gold resistors, which not only makes up for the low power of LED turn signals and avoids triggering fault alarms due to low power, but also separates the heating plate from the circuit board and arranges the resistance wires in a serpentine pattern to improve heat dissipation and reduce the risk of failure due to excessive temperature. It also reduces the possibility of material aging or damage caused by high temperature and improves overall safety.

[0030] Example 2

[0031] The LED turn signal equipped with a heating plate described in this embodiment includes a housing, a reflector, a lamp cover, an LED light source, a circuit board, and a heating plate.

[0032] The reflector has through holes for accommodating LED light sources, which are embedded within these holes. Both the LED light source and the reflector are housed within the cavity formed by the lampshade and the housing. A lens is mounted at the front end of the LED light source, and a cooling fan is located on one side of the lens.

[0033] The heating plate is fixedly installed on the inner wall of the housing and includes a copper substrate 1, a resistance wire 2 laid on the substrate 1, and a first pin 3 and a second pin 3 respectively connected to both ends of the resistance wire 2. Figure 1 The figure shows a schematic diagram of the heating plate described in this embodiment. The resistance wire 2 includes a first and second heat dissipation section symmetrically arranged horizontally, and a third and fourth heat dissipation section symmetrically arranged vertically. The first, second, third, and fourth heat dissipation sections are arranged in a serpentine pattern, forming a current circulation path. The first pin 3 and the second pin 4 are adjacent to each other on the first / second / third / fourth heat dissipation sections. The heating plate uses the first pin 3 as the current inlet and the second pin 4 as the current outlet, and is connected in series with the LED light source on the circuit board. Let the power of the heating plate and the LED light source be P1 and P2, respectively. The maximum power required to trigger a fault alarm due to low power is P3. P1, P2, and P3 satisfy: P1 + P2 ≥ P3.

[0034] Example 3

[0035] The LED turn signal equipped with a heating plate described in this embodiment includes a housing, a reflector, a lamp cover, an LED light source, a circuit board, and a heating plate.

[0036] The reflector has through holes for accommodating LED light sources, which are embedded within these holes. Both the LED light source and the reflector are housed within the cavity formed by the lampshade and the housing. A lens is mounted at the front end of the LED light source, and a cooling fan is located on one side of the lens.

[0037] The heating plate is fixedly installed on the inner wall of the housing and includes a copper substrate 1, a resistance wire 2 laid on the substrate 1, and a first pin 3 and a second pin 3 respectively connected to both ends of the resistance wire 2. Figure 1 The figure shows a schematic diagram of the heating plate described in this embodiment. The resistance wire 2 is spirally distributed on the substrate 1. The heating plate uses the first pin 3 as the current inlet and the second pin 4 as the current outlet, and is connected in series with the LED light source on the circuit board. Let the power of the heating plate and the LED light source be P1 and P2, respectively. The maximum power required to trigger a fault alarm due to low power is P3. P1, P2, and P3 satisfy: P1 + P2 ≥ P3.

[0038] The embodiments described above are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Any obvious improvements, substitutions or modifications that can be made by those skilled in the art without departing from the essential content of the present invention shall fall within the protection scope of the present invention.

Claims

1. An LED turn signal equipped with a heating plate, characterized in that, The device includes a housing, a reflector, a lampshade, an LED light source, a circuit board, and a heating plate. The reflector has a through hole for accommodating the LED light source, which is embedded in the through hole of the reflector. Both the LED light source and the reflector are located in the cavity formed by the lampshade and the housing. The heating plate includes a substrate (1), a resistance wire (2) laid on the substrate (1), and a first pin (3) and a second pin (4) connected to both ends of the resistance wire (2). The heating plate uses the first pin (3) as the current inlet and the second pin (4) as the current outlet, and is connected in series with the LED light source on the circuit board. The resistance wire (2) is arranged in a serpentine pattern on the substrate (1).

2. The LED turn signal according to claim 1, characterized in that, The resistance wire (2) includes a first heat dissipation part and a second heat dissipation part arranged symmetrically on the left and right, and a third heat dissipation part and a fourth heat dissipation part arranged symmetrically on the top and bottom; the first heat dissipation part, the second heat dissipation part, the third heat dissipation part and the fourth heat dissipation part are all arranged in a serpentine pattern and can form a current circulation path.

3. The LED turn signal according to claim 1, characterized in that, The resistance wire (2) is spirally distributed on the substrate (1).

4. The LED turn signal according to claim 1, characterized in that, it is provided that... The power of the heating plate and the LED light source are respectively P 1 , P 2 The maximum power required to trigger a fault alarm due to low power is P 3 The P 1 , P 2 and P 3 satisfy: P 1 + P 2 ≥ P 3 .

5. The LED turn signal according to claim 1, characterized in that, A lens is installed at the front end of the LED light source, and a cooling fan is provided on one side of the lens.

6. The LED turn signal according to claim 1, characterized in that, The substrate (1) is made of aluminum or copper.

7. The LED turn signal according to claim 1, characterized in that, The heating plate is fixedly installed on the inner wall of the housing.

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