System for integrating the luminous intensity of a vehicle light and respective vehicle light

Abstract

The present invention pertains to the field of automotive headlamps and relates to a system for integrating the luminous intensity of a vehicle light, and to the respective vehicle light, in which the dependent and independent modes of the headlamps traditionally known in the art operate together in a perfectly integrated manner. So that the present invention may be implemented by any person skilled in this technological field, as can be seen from figures 1 to 12, the headlamp (100) disclosed herein must have an external lens (15), a reflector (14) with a mask (141), a control board (12), a thermal adhesive (11), spindles (30) with bushings (31), a housing (10), an LED board (13) and a support member (20). In an alternative embodiment, the headlamp disclosed herein may further comprise a thick lens (16).

Description

[0001] VEHICLE LANTERN LUMINOUS INTENSITY INTEGRATION SYSTEM AND RESPECTIVE VEHICLE LANTERN

[0002] FIELD OF INVENTION

[0003]

[0001] In general, the present invention pertains to the automotive headlight technology sector and relates, more specifically, to an electrical drive system for a vehicle headlight and its corresponding headlight, in which the dependent and independent drive modes of the combined headlights, with high and low beam functions, traditionally known in the state of the art, act together, perfectly integrated, and provide equipment with high electrical and luminous efficiency. The issue of independent and dependent drive determines through which pin (electrical path) the electric current consumption will be drained. This is very important so that vehicles with fault diagnosis can identify whether the product is operating or not, in order to alert the driver that the headlight is not operating.

[0004] BACKGROUND OF THE INVENTION

[0005]

[0002] Currently, state-of-the-art vehicle headlights have only two types of operation from an electrical point of view, namely: dependent and independent.

[0006]

[0003] In the dependent system, it is mandatory that the “low beam” is activated so that the “high beam” can be activated, and all electrical power is drained through the “low beam” function pin, while the “high beam” function pin is only a low power input, which can be considered as a signal input.

[0007]

[0004] This concept emerged in projector-type headlights consisting of just one halogen lamp and a solenoid for switching a mechanical system to alternate between “high beam” (solenoid activated) and “low beam” (solenoid deactivated).

[0008]

[0005] As mentioned previously, in this case, the light source is a single lamp driven through the “low beam” function pin, this pin being the power input for driving the lamp, while the “high beam” input is only responsible for driving the high power solenoid.

[0009]

[0006] The concept discussed above is also used in lighting modules consisting of LEDs, mainly in developments to convert halogen lamp technology to LED without the need for changes to the vehicle's electrical system.

[0010]

[0007] In the independent system, the “high beam” can be activated at any time, even if the “low beam” power supply is turned off.

[0011]

[0008] This concept, applied to headlights with parabolic reflectors, has at least two variations, the first consisting of a single bulb with two filaments: one for the “low beam” function and the other for the “high beam” function.

[0012]

[0009] In the second variation, the system consists of two independent lamps, one for the "high beam" and one for the "low beam." The main difference between these two, in terms of electrical activation, is that in the first, the "low beam" must be off for the "high beam" to be activated, as the lamp cannot support the electrical power of both filaments activated simultaneously. In the second variation, this restriction does not exist because the headlights are independently constructed.

[0010] However, this characteristic varies from vehicle to vehicle, resulting in a limited vehicle lighting supply system, in addition to hindering the standardization of available vehicle lighting circuits.

[0013]

[0011] That said, there are also some alternatives that represent the current state of the art and that are described in patent documents. Some examples can be observed as in the case of document DE102017129254B4 “VEHICLE HEADLIGHTS” which describes a vehicular headlight comprising at least two light modules in which a first light module is configured to generate a first dynamically controllable partial light distribution, the first light module comprises at least a first light source and at least a first means for generating a first light image of the first partial light distribution and at least a first projection optics, with at least a first projection optics being usable to project the first light image as a first light image onto the road in a first emission direction, and a second light module configured, a second dynamically controllable partial light distribution to generate,wherein the second light module has at least one second light source and at least one second means for generating a second light image from the second partial light distribution and comprises at least one second projection optics, the second light image being projectable onto the road as a second light image in a second emission direction by means of the at least one second projection optics, and when in the headlight on a vehicle, the first emission direction of the first light image and the second emission direction of the second light image run approximately parallel and the first light image and the second light image overlap at least partially in the area far in front of the vehicle, the first partial light distribution has a first width in the horizontal direction and the second partial light distribution has a second width in the horizontal direction.

[0014]

[0012] It should be noted that this technology presents the optical concept of indirect and short-spectrum reflection, being a significantly large piece of equipment and its functionality is provided by means of a direct electrical circuit, being limited to a single type of operation.

[0013] Therefore, from all the drawbacks existing in the systems and equipment currently used, described above in the state of the art, it is clear that there is a gap in the creation of an electrical drive system (of headlights) for vehicle flashlights and respective vehicle flashlights, in which the dependent and independent modes of the headlights traditionally known in the state of the art act together, perfectly integrated and providing equipment with high electrical and luminous efficiency.

[0015] SUMMARY AND OBJECTIVES OF THE INVENTION

[0016]

[0014] Analyzing the dependent and independent electrical drive systems, it is possible to develop an electronic system integrated into the headlight, which allows the use of a single headlight model (a single product code) in both dependent and independent applications, so that the electrical current drain occurs automatically through the electrical path that is being energized so that the vehicle fault diagnosis correctly understands whether the headlight is operating or not. The development of a single solution applicable to all technical application conditions existing in the market favors the reduction of product variations to be manufactured, bringing scalability to the manufacturing process and consequent reduction in product costs and operating costs for obtaining said headlight.

[0015] For this to occur, the electronic circuit developed here has two power inputs, one on the “high beam” pin and the other on the “low beam” pin, in addition to a common GND, and these power inputs can be shared so that the “high beam” input can also activate the “low beam” LED if necessary and, in addition, the “low beam” input is a priority for electrical consumption, therefore, if both inputs are activated simultaneously, all headlight consumption will be drained through the “low beam” pin.

[0017]

[0016] Note that, thanks to this, in the dependent system proposed here, when the “low beam” pin is activated, the “low beam” function is activated; when both pins are activated, the “high beam” function is activated, directing all electrical consumption to the “low beam” pin or, in independent mode, when the “low beam” pin is activated, the “low beam” function is activated and when the “high beam” pin is activated, only the “high beam” function is activated, so that both pins are activated simultaneously, but only with the “high beam” function active, so that electrical consumption (current) comes from the “low beam” pin.

[0018]

[0017] Furthermore, when the low beam (LB) is activated, the source / driver powers a set of LEDs responsible for projecting light in just one section of the reflector, but as soon as the high beam (HB) is activated, the source / driver will power another set of LEDs responsible for projecting light in two sections of the reflector.

[0018] Therefore, if the LB is activated, when the HB is activated, there will be a complementarity in the light projection, however, if the LB is not activated, when the HB is activated, the driver / source will take care of this activation, thus ensuring the complete projection of the function.

[0019]

[0019] Another fundamental factor is the use of thermopolymer, since, due to the management of the activation of functions, it was possible to reduce the number of components compared to known market solutions, providing an efficient thermal management project that enables the use of thermopolymer for thermal dissipation.

[0020]

[0020] Otherwise, with the techniques used in the market, it would be necessary to use a heat sink with an aluminum substrate, which increases the cost of the product, even requiring some type of anti-corrosion coating, such as paint for example, further increasing the cost of the product and its manufacturing time.

[0021]

[0021] Thus, with the aim of remedying the flaws in the current state of the art highlighted above, the present invention patent aims to propose a system for integrating the light intensity of a vehicle lantern and the respective vehicle lantern, in which the dependent and independent modes of the headlights traditionally known in the state of the art act together, perfectly integrated and providing equipment with high electrical and light efficiency.

[0022] BRIEF DESCRIPTION OF THE FIGURES

[0023]

[0022] In order for the present invention to be fully understood and put into practice by any technician in this technological sector, it will be described in a clear, concise and sufficient manner, based on the attached drawings, which illustrate and support it, listed below:

[0023] Figure 1 shows the perspective view of the complete assembled headlight.

[0024]

[0024] Figure 2 shows the rear perspective view of the complete assembled headlight.

[0025]

[0025] Figure 3 shows the front view of the complete assembled headlight.

[0026]

[0026] Figure 4 shows a cross-sectional view of the headlight.

[0027]

[0027] Figure 5 shows the exploded view of the complete assembled headlight, detailing its components.

[0028]

[0028] Figure 6 shows the perspective view of the complete assembled headlight, in its second construction modality.

[0029]

[0029] Figure 7 shows the rear perspective view of the complete assembled headlight, in its second construction modality.

[0030]

[0030] Figure 8 shows the front view of the complete assembled headlight, in its second construction modality.

[0031]

[0031] Figure 9 shows a cross-sectional view of the headlight, in its second construction modality.

[0032]

[0032] Figure 10 shows the exploded view of the complete assembled headlight, detailing its components, in its second construction modality.

[0033]

[0033] Figure 11 represents a diagram of the electrical circuit applied to the headlight.

[0034]

[0034] Figure 12 represents the headlight activation condition table.

[0035]

[0035] Figure 13 provides reference to the dependent and independent systems, which are modes commonly used in the state of the art.

[0036]

[0036] The attached Figures represent the preferred form of execution of the product, so that its form of presentation is not restrictive, and there may be constructive modifications that maintain the same claimed points.

[0037] DETAILED DESCRIPTION OF THE INVENTION

[0038]

[0037] In order for the present invention to be put into practice by any technician in this technological sector, the headlight (100) now revealed, as can be seen in Figures 1 to 5, presents a housing (10) with grooved faces provided with a support (20) positioned in the rear portion and fixed by screws (21), said support (20) allowing the positioning of spindles (30) with adjustment bushing (31).

[0038] The support (20) is provided with tabs (22), positioned in the upper and lower portion, which allow the positioning of the spindles (30).

[0039]

[0039] In the internal portion of the housing (10) a thermal adhesive (11) is placed next to the internal rear face that allows the control board (12) to be fixed using a screw.

[0040]

[0040] In the upper internal portion of the housing (10) the LED board (13) is arranged, fixed by screws in order to direct the LEDs to the lower portion.

[0041]

[0041] The housing (10) receives the positioning of the reflector (14) with mask (141) that has projections (142) in the upper portion for fixing using screws and openings (143) for positioning the LEDs arranged next to the plate (13), in order to direct the light beams onto the reflector.

[0042]

[0042] The headlight (100) is equipped with an external lens (15) that promotes the closing and sealing of the headlight.

[0043]

[0043] In a second construction embodiment, the headlight (100) now revealed has a reflector (14) equipped with three openings (143) and a thick front lens (16), as seen in Figures 6 to 10. The thick lens (16) is an optical resource for controlling light through a limited area, in this case for the front position light, DRL and directional functions. It is a very good resource for small areas and delivers a visual quality much higher than solutions with a reflector.

[0044]

[0044] As can be seen in Figure 1 1 and 12, the electronic circuit of the board (12) has two power inputs, one on the “high beam” pin (HB_IN) and the other on the “low beam” pin (LB_IN), and said power inputs (LB_IN and HB_IN) can be shared so that the “high beam” (HB) input can also activate the “low beam” (LB) LED board (13) if necessary and, in addition, the “low beam” (LB) input has priority for electrical consumption, therefore, if both inputs are activated simultaneously, all headlight consumption will be drained through the “low beam” (LB) pin.

[0045]

[0045] Note that when the low beam (LB) is activated, the board (12) powers a set of LEDs responsible for projecting light partially onto the reflector (14), but as soon as the high beam (HB) is activated, the board (12) will power another set of LEDs responsible for projecting complete light onto the reflector.

[0046]

[0046] Therefore, if the low beam (LB) is activated, when activating the high beam (HB), there will be a partial projection of light, however, if the low beam (LB) is not activated, when activating the high beam (HB), the plate (12) will take care of this activation, thus ensuring the complete light projection.

[0047]

[0047] Another fundamental factor is the use of the thermal adhesive (1 1 ), which has the function of ensuring that the interface between the materials (in this case the PCB and the heatsink) is adequately joined, so that variables such as roughness and dimensional distortions do not affect heat transfer. The adhesive (11) acts as an electrical insulator, having the benefit of electrically isolating the internal electrical system from the external environment, preventing transients from affecting the useful life and operation of the product.

Claims

CLAIMS:

1. VEHICLE FLASHLIGHT characterized by comprising headlight (100) equipped with external lens (15), reflector (14), control board (12), spindles (30) with bushing (31), housing (10), LED board (13), and the electronic circuit of the board (12) is equipped with at least two power inputs, one on the “high beam” pin (HB_IN) and the other on the “low beam” pin (LB_IN), and said power inputs (LB_IN and HB_IN) can be shared so that the “high beam” (HB) input can also activate the “low beam” (LB) LED board (13) and if both inputs are activated simultaneously, all headlight consumption will be drained through the “low beam” (LB) pin.

2. VEHICLE FLASHLIGHT, according to claim 1, and further characterized in that the headlight (100) can be equipped with a thick lens (16).

3. VEHICLE FLASHLIGHT, according to claim 1, and further characterized in that the housing (10) is made of thermopolymer.

4. VEHICLE FLASHLIGHT, according to claim 1, and further characterized in that the support (20) is provided with tabs (22), positioned in the upper and lower portion, for fixing the spindles (30).

5. VEHICLE FLASHLIGHT, according to claim 1, and further characterized in that the reflector (14) is equipped with a mask (141).

6. VEHICLE FLASHLIGHT, according to claim 1, and further characterized in that the headlight (100) is provided with a support (20).

7. VEHICLE LANTERN LIGHT INTENSITY INTEGRATION SYSTEM characterized by when the low beam is activated (LB) the board (12) powers a set of LEDs responsible for projecting light in just one section of the reflector (14); when activating the high beam (HB) the board (12) will power another set of LEDs responsible for projecting light in two sections of the reflector (14); if the low beam (LB) is activated, when activating the high beam (HB), there will be a complementarity in the light projection, if the low beam (LB) is not activated, when activating the high beam (HB) the board (12) will take care of this activation, providing the complete light projection of the headlight (100).

8. VEHICLE FLASHLIGHT LUMINOUS INTENSITY INTEGRATION SYSTEM, according to claim 7, and further characterized in that when the “low beam” pin is activated, it activates the “low beam” function; when both pins are activated, it activates the “high beam” function; the electrical consumption is directed to the “low beam” pin when the high beam function is activated or, when the “low beam” pin is activated, the “low beam” function is activated and when the “high beam” pin is activated, only the “high beam” function is activated, so that both pins are activated simultaneously, only with the “high beam” function active, so that the electrical consumption comes from the “low beam” pin.

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