LED car lamp module capable of greatly brightening passing light

Abstract

A low-beam lamp bead and high-beam lamp beads are arranged on a PCB, the high-beam lamp beads are distributed on the two sides of the low-beam lamp bead, the high-beam lamp beads and the low-beam lamp beads on the two sides are distributed at the same height, lens assemblies are arranged on the positions, on the same side of the low-beam lamp bead and the high-beam lamp beads, of the PCB, a low-beam brightening lamp bead is further arranged on the PCB, and the low-beam brightening lamp bead is arranged on the PCB. The low-beam brightening lamp beads are distributed on the two sides of the low-beam lamp beads, and the low-beam brightening lamp beads are arranged above the high-beam lamp beads at the height position of the same side of the low-beam lamp beads; in the high-beam state, the low-beam lamp bead and the high-beam lamp bead are lightened, and in the low-beam state, the low-beam lamp bead and the low-beam brightening lamp bead are lightened. The optical light path of the low-beam brightening lamp bead uses the original high-beam light distribution light path, so that only the irradiation angle is adjusted, and the light path can be more focused and also meets the requirements of laws and regulations; according to the scheme, original heat dissipation conditions are utilized, on the premise that heat dissipation is guaranteed, the low-beam brightening lamp beads are additionally arranged, and the road surface irradiation effect in the low-beam state can be greatly improved.

Description

Technical Field

[0001] The utility model relates to an LED vehicle lamp module with greatly enhanced low beam brightness. Background Art

[0002] Conventional electric vehicles on the market now use LED headlights. In the high-beam state, the high-beam and low-beam lamp beads are lit at the same time. In the process of switching from the high-beam state to the low-beam state, the high-beam lamp beads are extinguished, and the low-beam lamp beads remain lit. The overall brightness of the LED headlights is reduced at the moment of switching, which brings a more obvious visual sensory difference to the driver, affecting the rider's riding experience. For riders with poor eyesight, the safety of driving at night may not be effectively guaranteed. Summary of the invention

[0003] In view of the shortcomings existing in the above problems, the utility model provides an LED vehicle lamp module with greatly enhanced low beam brightness.

[0004] To achieve the above-mentioned purpose, the utility model provides an LED car light module with greatly enhanced low beam brightness, including a PCB board, on which low beam lamp beads and high beam lamp beads are arranged, the high beam lamp beads are distributed on both sides of the low beam lamp beads, and the high beam lamp beads on both sides are distributed at the same height as the low beam lamp beads, the PCB board is provided with a lens assembly on the same side of the low beam lamp beads and the high beam lamp beads, and the PCB board is also provided with low beam brightening lamp beads, the low beam brightening lamp beads are distributed on both sides of the low beam lamp beads, and are arranged above the high beam lamp beads at the same height position on the same side of the low beam lamp beads.

[0005] Furthermore, the lens assembly includes a small lens and a large lens, the small lens is connected to the PCB board via a fastener, and the large lens is connected to the PCB board via a lens bracket.

[0006] Furthermore, the LED car light module also includes an MCU unit for controlling the low beam lamp beads, the high beam lamp beads and the low beam brightening lamp beads. Specifically, the MCU unit has a JMCU pin for identifying whether the low beam is turned on, and a YMCU pin for identifying whether the high beam is turned on. The MCU unit also has a low beam output control pin JOUT, a high beam output control pin YOUT, and a low beam brightening output control pin ZOUT.

[0007] Furthermore, a MOS tube Q3 is connected in series on the connection circuit of the two low-beam brightening lamp beads, and a MOS tube Q2 is connected in series on the connection circuit of the two high-beam lamp beads. A short-circuit circuit short-circuits the two low-beam brightening lamp beads and the two high-beam lamp beads to form a whole and forms a secondary series connection with the low-beam lamp beads. A MOS tube Q1 is also connected in series on the short-circuit circuit.

[0008] Furthermore, the low beam output control pin JOUT realizes on-off control of the MOS tube Q1 through a first control circuit. Specifically, the first control circuit includes a resistor R14, a resistor R18, and a voltage regulator diode ZD3 connected in parallel at both ends of the resistor R18.

[0009] Furthermore, the high beam output control pin YOUT realizes on-off control of the MOS tube Q2 through a second control circuit. Specifically, the second control circuit includes a resistor R15, a resistor R19, and a voltage regulator diode ZD4 connected in parallel at both ends of the resistor R19.

[0010] Furthermore, the low beam brightening output control pin ZOUT realizes on-off control of the MOS tube Q3 through a third control circuit. Specifically, the third control circuit includes a resistor R16, a resistor R20, and a voltage regulator diode ZD5 connected in parallel at both ends of the resistor R20.

[0011] Furthermore, the LED car light module has a default mode and a normal mode. When it is detected that the high and low beams are switched three times within 6 seconds, the LED car light module switches between the default mode and the normal mode.

[0012] The beneficial effects of the utility model compared with the prior art are:

[0013] Default mode: In high beam state, low beam lamp beads and high beam lamp beads are lit, and in low beam state, low beam lamp beads and low beam brightening lamp beads are lit. Because the optical light path of the low beam brightening lamp beads uses the original high beam light distribution light path, only the irradiation angle is adjusted, this light path can be more focused and can also meet regulatory requirements; the solution makes full use of the existing heat dissipation conditions, and adds low beam brightening lamp beads while ensuring heat dissipation, which can greatly improve the road irradiation effect in low beam state and improve driving safety;

[0014] Normal mode: In high beam state, both low beam and high beam lamp beads are lit; in low beam state, only low beam lamp beads are lit, which retains the original lighting effect of the product and facilitates the product to be accepted by more consumers. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of an LED headlight module with greatly enhanced low beam brightness;

[0016] Figure 2 An exploded view of an LED headlight module with greatly enhanced low beam brightness;

[0017] Figure 3 A schematic diagram of the distribution of lamp beads of an LED headlight module with greatly enhanced low beam brightness;

[0018] Figure 4 A light pattern diagram of a low beam state of an LED headlight module with greatly enhanced low beam brightness (normal mode);

[0019] Figure 5 A light pattern diagram of a high beam state of an LED headlight module with greatly enhanced low beam (normal mode, default mode);

[0020] Figure 6 A light pattern diagram of a low beam state of an LED headlight module with greatly enhanced low beam brightness (default mode);

[0021] Figure 7 The present invention is a schematic diagram of a circuit control system for an LED vehicle light module with greatly enhanced low beam brightness.

[0022] In the figure: 1. PCB board; 2. Low beam lamp bead; 3. High beam lamp bead; 4. Low beam brightening lamp bead; 5. Lens assembly; 51. Small lens; 52. Lens bracket; 53. Large lens. DETAILED DESCRIPTION

[0023] like Figure 1 , Figure 2 and Figure 3 As shown, an LED vehicle light module with greatly enhanced low beam brightness according to an embodiment of the utility model comprises a PCB board 1, on which are arranged low beam lamp beads 2 and high beam lamp beads 3, which are distributed on both sides of the low beam lamp beads 2, and the high beam lamp beads 3 on both sides are distributed at the same height as the low beam lamp beads 2, and the PCB board 1 is provided with a lens assembly 5 on the same side of the low beam lamp beads 2 and the high beam lamp beads 3, and the PCB board 1 is further provided with low beam brightening lamp beads 4, which are distributed on both sides of the low beam lamp beads 2, and are arranged above the high beam lamp beads 3 at the same height position on the same side of the low beam lamp beads 2; the lens assembly 5 comprises a small lens 51 and a large lens 53, the small lens 51 is connected to the PCB board 1 by a fastener, and the large lens 53 is connected to the PCB board 1 by a lens bracket 52.

[0024] like Figure 7As shown, the LED headlight module also includes an MCU unit for controlling the low beam lamp bead 2, the high beam lamp bead 3 and the low beam brightening lamp bead 4. Specifically, the MCU unit has a JMCU pin for identifying whether the low beam is turned on and a YMCU pin for identifying whether the high beam is turned on. The MCU unit also has a low beam output control pin JOUT, a high beam output control pin YOUT, and a low beam brightening output control pin ZOUT; a MOS tube Q3 is connected in series on the connection circuit of the two low beam brightening lamp beads 4, and a MOS tube Q2 is connected in series on the connection circuit of the two high beam lamp beads 3. A short circuit short-circuits the two low beam brightening lamp beads 4 and the two high beam lamp beads 3 to form a whole and form a secondary series connection between the low beam lamp bead 2. A MOS tube Q1 is also connected in series on the short circuit; the low beam output control pin JOUT realizes the passage of the MOS tube Q1 through the first control circuit. On-off control, specifically, the first control circuit includes a resistor R14, a resistor R18, and a voltage-stabilizing diode ZD3 connected in parallel at both ends of the resistor R18; the high-beam output control pin YOUT realizes on-off control of the MOS tube Q2 through the second control circuit, specifically, the second control circuit includes a resistor R15, a resistor R19, and a voltage-stabilizing diode ZD4 connected in parallel at both ends of the resistor R19; the low-beam brightening output control pin ZOUT realizes on-off control of the MOS tube Q3 through the third control circuit, specifically, the third control circuit includes a resistor R16, a resistor R20, and a voltage-stabilizing diode ZD5 connected in parallel at both ends of the resistor R20; the LED car light module has a default mode and a normal mode. When it is detected that the high-beam and low-beam switching reaches 3 times within 6 seconds, the LED car light module realizes mutual switching between the default mode and the normal mode.

[0025] Default mode: In high beam state, low beam lamp beads and high beam lamp beads are lit, and in low beam state, low beam lamp beads and low beam brightening lamp beads are lit. Because the optical light path of the low beam brightening lamp beads uses the original high beam light distribution light path, only the irradiation angle is adjusted, this light path can be more focused and can also meet regulatory requirements; the solution makes full use of the existing heat dissipation conditions, and adds low beam brightening lamp beads while ensuring heat dissipation, which can greatly improve the road irradiation effect in low beam state and improve driving safety;

[0026] Normal mode: In high beam state, both low beam and high beam lamp beads are lit; in low beam state, only low beam lamp beads are lit, which retains the original lighting effect of the product and facilitates the product to be accepted by more consumers.

[0027] In order to facilitate the understanding of the present invention, the following description is given in conjunction with the accompanying drawings during specific use;

[0028] JMCU is the low beam detection pin, which detects whether the low beam is turned on. If it receives a high level, it is considered that the low beam is detected; YMCU is the high beam detection pin, which detects whether the high beam is turned on. If it receives a high level, it is considered that the high beam is detected; JOUT is the low beam output control pin. When the pin outputs a high level, the MOS tube Q1 can be controlled to be turned on through the circuit. At this time, only LED1 is lit, that is, only the low beam lamp bead is lit; YOUT is the high beam output control pin. When the pin outputs a high level, the MOS tube Q2 can be controlled to be turned on through the circuit. At this time, only LED1, LED2, and LED3 are lit, that is, the low beam lamp bead and the high beam lamp bead are lit; ZOUT is the low beam brightening output control pin. When the pin outputs a high level, the MOS tube Q3 can be controlled to be turned on through the circuit. At this time, only LED1, LED4, and LED5 are lit, that is, the low beam lamp bead and the low beam brightening lamp bead are lit.

[0029] When the headlights are turned on within 6S (regardless of whether the low beam or high beam is on), the MCU is powered and works to detect whether the high beam and low beam are switched continuously for more than 3 times within this time. If not, the working mode at this time is the default mode (the default state has the low beam brightening function).

[0030] In default mode:

[0031] The headlight is powered, that is, (IN+) is powered. When the switch is in low beam mode, JMCU receives a high-level signal, and ZOUT outputs a high level. The circuit can control the MOS tube Q3 to conduct. At this time, only LED1, LED4, and LED5 are lit, that is, the low beam lamp beads and the low beam brightening lamp beads are lit;

[0032] When the switch is in high beam mode, YMCU receives a high level signal, YOUT outputs a high level, and the circuit can control the MOS tube Q2 to conduct. At this time, only LED1, LED2, and LED3 are lit, that is, the low beam and high beam lamp beads are lit;

[0033] When the headlights are turned on within 6S (regardless of whether the low beam or high beam is on), the MCU is powered and works to detect whether the high beam and low beam are switched continuously for more than 3 times within this time. If so, it switches to normal mode.

[0034] In normal mode:

[0035] The headlight is powered, that is, (IN+) is powered. When the switch is in low beam mode, JMCU receives a high level signal, and JOUT outputs a high level. The circuit can control the MOS tube Q1 to turn on. At this time, only LED1 is lit, that is, only the low beam lamp bead is lit.

[0036] When the switch is in high beam position, YMCU receives a high level signal, YOUT outputs a high level, and the circuit can control the MOS tube Q2 to turn on. At this time, only LED1, LED2, and LED3 are lit, that is, the low beam and high beam lamp beads are lit.

[0037] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An LED vehicle lamp module with greatly enhanced low beam brightness, comprising a PCB board (1), wherein the PCB board (1) is provided with low beam lamp beads (2) and high beam lamp beads (3), wherein the high beam lamp beads (3) are distributed on both sides of the low beam lamp beads (2), and the high beam lamp beads (3) on both sides are distributed at the same height as the low beam lamp beads (2), and the PCB board (1) is provided with a lens assembly (5) at the same side of the low beam lamp beads (2) and the high beam lamp beads (3), characterized in that: The PCB board (1) is also provided with low-beam brightening lamp beads (4), which are distributed on both sides of the low-beam lamp beads (2), and are arranged above the high-beam lamp beads (3) at the same height position on the side of the low-beam lamp beads (2).

2. The LED vehicle light module with greatly enhanced low beam brightness according to claim 1, characterized in that: The lens assembly (5) comprises a small lens (51) and a large lens (53); the small lens (51) is connected to the PCB board (1) via a fastener, and the large lens (53) is connected to the PCB board (1) via a lens bracket (52).

3. The LED vehicle light module with greatly enhanced low beam brightness according to claim 2, characterized in that: The vehicle also includes an MCU unit for controlling the low beam lamp bead (2), the high beam lamp bead (3) and the low beam boost lamp bead (4). Specifically, the MCU unit has a JMCU pin for identifying whether the low beam is turned on, and a YMCU pin for identifying whether the high beam is turned on. The MCU unit also has a low beam output control pin JOUT, a high beam output control pin YOUT and a low beam boost output control pin ZOUT.

4. The LED vehicle lamp module with greatly enhanced low beam brightness according to claim 3, characterized in that: A MOS tube Q3 is connected in series on the connection circuit of the two low-beam brightening lamp beads (4), and a MOS tube Q2 is connected in series on the connection circuit of the two high-beam lamp beads (3). A short-circuit circuit short-circuits the two low-beam brightening lamp beads (4) and the two high-beam lamp beads (3) to form a whole and forms a secondary series connection with the low-beam lamp beads (2). The short-circuit circuit is also connected in series with a MOS tube Q1.

5. The LED vehicle lamp module with greatly enhanced low beam brightness according to claim 4, characterized in that: The low beam output control pin JOUT realizes on-off control of the MOS tube Q1 through a first control circuit. Specifically, the first control circuit includes a resistor R14, a resistor R18, and a voltage stabilizing diode ZD3 connected in parallel at both ends of the resistor R18.

6. The LED vehicle light module with greatly enhanced low beam brightness according to claim 5, characterized in that: The high beam output control pin YOUT realizes on-off control of the MOS tube Q2 through a second control circuit. Specifically, the second control circuit includes a resistor R15, a resistor R19, and a voltage stabilizing diode ZD4 connected in parallel at both ends of the resistor R19.

7. The LED vehicle light module with greatly enhanced low beam brightness according to claim 5, characterized in that: The low beam brightening output control pin ZOUT realizes on-off control of the MOS tube Q3 through a third control circuit. Specifically, the third control circuit includes a resistor R16, a resistor R20, and a voltage regulator diode ZD5 connected in parallel at both ends of the resistor R20.

8. The LED vehicle lamp module with greatly enhanced low beam brightness according to claim 7, characterized in that: The LED car light module has a default mode and a normal mode. When it is detected that the high and low beams are switched three times within 6 seconds, the LED car light module switches between the default mode and the normal mode.

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