Structural arrangement applied to a vehicle light provided with modular lighting devices

Abstract

In a general manner, the present structural arrangement pertains to the field of automotive technology. It relates, more specifically, to a vehicle light (1) provided with modular lighting devices known as daytime running lights, said light having three functions: DRL, directional, and position lighting, and being especially developed, out of all its features, to power, by means of a single switched power source (10A), a plurality of linear drivers (10B) responsible for each light (1), so that the total power consumed does not vary significantly according to the number of lights used. The modular light (1) is basically composed of a control and lighting module (not shown) and can be assembled in groups of three, four or five lights (1), preferably with dimensions of 15 x 72 x 27 mm, in compliance with regulation ECER148 §5.4.6, with a minimum apparent surface area of 25 cm².

Description

[0001] CONSTRUCTION DISPOSITION APPLIED IN VEHICLE LANTERN EQUIPPED WITH MODULAR LIGHTING DEVICES

[0002] Field of Application of the Utility Model

[0003]

[0001] In general, the present construction arrangement belongs to the automotive technology sector and refers, more specifically, to a vehicle flashlight equipped with modular lighting devices, this flashlight being equipped with three functions: DRL, directional and position, specially developed, among all its characteristics, to power, through a single switched source, a plurality of linear drivers responsible for each flashlight, so that the total power consumed does not change significantly depending on the number of flashlights used.

[0004] Background of the Utility Model

[0005]

[0002] Currently, the lanterns equipped with DRLs available on the market are, in general, built with a light source in the form of a bulb or LED, accompanied by reflectors and external lenses.

[0006]

[0003] In addition, the DRLs of the previously known flashlights combine the daytime running, position and directional functions and use LEDs arranged in white and yellow pairs, with the white light LED intended for the DRL and Position function and the yellow light LED for the directional function, with an internal lens input in radial collimators centered on the LED pair itself, with the output of the internal lens having intermediate optics and the input of the external lens having a thick and convex texture with the output of a diffuse PMMA lens causing light dispersion and final projection.

[0004] As the main drawback, such flashlights have a linear electrical system that is less efficient than a switching power supply, which in addition to representing higher production costs, generates a total power that varies according to each module added to the system, causing greater generation of re-reads related to electromagnetic interference, consequently, lower efficiency.

[0007]

[0005] From the current state of the art, document no. s BR20201 8075665-1 “LED FLASHLIGHT ARRANGEMENT FOR VEHICLES” describes a LED flashlight for vehicles, both for rear use in reverse, directional, fog, position, and brake functions, and for front use in daytime running light (DRL) and directional functions. The flashlight consists of a base, an electronic board, an optical assembly integrated with LEDs mounted on the base of the collimators, and an external lens that hermetically seals the housing against the base. The optical assembly is installed on a mounting bracket. The collimators are preferably made of translucent and crystalline polymeric material, optionally acrylic. In a preferred mounting method for the optical assembly, the LEDs are fixed to the PCB and surrounded by ducts that are integral with the collimators.

[0008]

[0006] Note that the previously described document presents several drawbacks previously highlighted in the current state of the art, such as, for example, LEDs arranged in white and yellow pairs, with an internal lens input in radial collimators centered on the LED pair itself, with the internal lens output having intermediate optics and the external lens input having a thick and convex texture with the diffuse PMMA lens output causing light dispersion and final projection, in addition to presenting a switched source for each lighting module, which, in addition to leading to higher production costs, generates a total power that varies according to each module added to the system, causing greater energy consumption and, consequently, lower efficiency.

[0009]

[0007] Therefore, based on 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 a vehicle flashlight equipped with modular lighting devices known as daytime running lights, this flashlight being equipped with three functions: DRL, directional and position, specially developed, among all its characteristics, to power, through a single switched source, a plurality of linear drivers responsible for each module, so that the total power consumed does not change significantly depending on the number of flashlights used.

[0010]

[0008] The flashlight was also thermally dimensioned so that each module was capable of operating thermally safely through a thermal layout and a combination of efficient LEDs that, combined with a metal core plate and a polymeric heatsink, are capable of dissipating the heat generated efficiently.

[0011] Utility Model Summary and Objectives

[0012]

[0009] The lantern equipped with modular lighting devices supplied here has a rectangular lighting module with preferred dimensions of 15x72x27mm, these dimensions being in accordance with standard ECER148 §5.4.6, with an apparent surface of at least 25cm 2The light device consists of several lamps, preferably 3 to 5.

[0010] Furthermore, it features a polymer housing appropriately sized for thermal optimization. Its PCB is made of a metal core, which ensures greater thermal homogeneity and improved heat dissipation across the board's surface. It also features a thick, translucent polymer internal lens and a polymer frame that secures and finishes the internal parts with a conventional crystal polymer external lens.

[0011] Its LED array is aligned and alternated between white and yellow, featuring an internal lens input with an extruded collimator and an internal lens output with projection optics. Its external lens input has a fine texture, and the external lens output is polished and conventional.

[0013]

[0012] In particular, said flashlight is capable of powering, through a single switched source, a plurality of linear drivers responsible for each module, so that the total power consumed does not change significantly depending on the number of modules used in the flashlight.

[0014]

[0013] 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 new construction arrangement applied to a vehicle lantern equipped with modular lighting devices known as daytime running lights, this lantern being equipped with three functions: DRL, directional and position, specially developed, among all its characteristics, to power, through a single switched source, a plurality of linear drivers responsible for each module, so that the total power consumed does not change significantly depending on the number of lanterns used.

[0015] Description of the Drawings

[0014] In order for this provision 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:

[0016]

[0015] Figure 1 represents the set of three lanterns connected to the module.

[0017]

[0016] Figure 2 represents the lantern with whip.

[0018]

[0017] Figure 3 represents the perspective view of the lantern.

[0019]

[0018] Figure 4 represents the bottom perspective view of the lantern.

[0020]

[0019] Figure 5 represents the front view of the lantern.

[0021]

[0020] Figure 6 represents the top view of the flashlight without the lens, detailing the positioning of the LED plate.

[0022]

[0021] Figure 7 represents the perspective view of the module with the lantern wiring connections.

[0023]

[0022] Figure 8 represents the front view of the module, detailing its constructivity.

[0024]

[0023] Figure 9 shows an exploded view of a flashlight next to the module, detailing the internal components of the flashlight.

[0025]

[0024] Figure 10 represents the set of four lanterns connected to the module.

[0026]

[0025] Figure 11 represents the set of five lanterns connected to the module.

[0027]

[0026] Figure 12 shows the electronic diagram of the control and lighting module.

[0028]

[0027] 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.

[0029] Detailed Description of the Utility Model

[0030]

[0028] The modular lantern (1) revealed herein is basically composed of a control and lighting module (10), and can be assembled with a grouping of three, four or five lanterns (1), preferably with dimensions of 15x72x27mm, in accordance with standard ECER1 48 §5.4.6, presenting a minimum apparent surface area of ​​25cm 2 .

[0031]

[0029] Its housing (4) is made of polymer for thermal optimization purposes, thermally dimensioned which gives it greater durability, being equipped with an output (2) for the harness (2.1) equipped with a connector (2.2). Its PCB (5) is made of aluminum which ensures a more homogeneous thermal distribution across the entire surface of the board, maximizing heat conduction to the housing.

[0032]

[0030] In the lower portion of the housing (4) fins (4.1) are arranged, suitably sized and which help to dissipate heat from the internal components.

[0033]

[0031] Its internal lens (3A) and frame (3B) are composed, respectively, of typically thick crystal PMMA. The frame (3B) is fixed to the housing (4) by screws (3.1 B) that are fixed to projections near the ends of the housing (4).

[0034]

[0032] Its external lens (3) is made of translucent polymer that is resistant to UV aging and guarantees the flashlight's watertightness. In addition, it guarantees a lower manufacturing cost without compromising the product's durability and light diffusion.

[0035]

[0033] Note that its optical design features aligned and interleaved LEDs (5.1), preferably in white and yellow, with the internal lens input (3A) made with an extruded collimator and the internal lens output (3A) using projection optics.

[0036]

[0034] The PCB (5) is equipped with 8 pairs of LEDs (5.1), 8 white LEDs and 8 yellow LEDs, however, other combinations may be valid.

[0037]

[0035] The inlet of the external lens (3) has a fine texture that adequately characterizes the illuminated surface, while the outlet of the external lens (3) is conventionally polished.

[0038]

[0036] Note that the electronic project has a single switched source (10A) feeding the linear drivers (10B) for each flashlight (1), so that the total power consumed is similar, whether for three, four or five flashlight modules (1), as described in Figure 12.

[0039]

[0037] The module (10) is equipped with tabs (11) for fixing to the vehicle and with connections (12). In addition, the module is equipped with a plate (13) positioned in the rear portion of the module that is resin coated.

[0040]

[0038] Figure 9 shows an exploded view of a flashlight (1) next to the module (10), detailing the internal components of the flashlight (1).

[0041]

[0039] Figure 10 shows a module with a grouping of four lanterns.

[0042]

[0040] Figure 11 shows a module with a grouping of five lanterns.

Claims

CLAIMS:

1. CONSTRUCTION DISPOSITION APPLIED IN VEHICLE LANTERN EQUIPPED WITH MODULAR LIGHTING DEVICES which comprises a control and lighting module (not shown) characterized by having lighting lanterns (1) that present a thermal construction equipped with a set of LEDs (5.1) combined with a PCI board (5) and a polymeric heatsink (4.1) next to the housing (4), in addition to having a single switched source (1 OA) that powers the linear drivers (10B) for each lantern (1), so that the total power consumed is fixed for all lanterns (1).

2. CONSTRUCTION DISPOSITION APPLIED TO A VEHICLE LANTERN EQUIPPED WITH MODULAR LIGHTING DEVICES, according to claim 1, characterized by having three, four or five lighting modules (1), housing (4) composed of polymer and equipped with an output for the harness (2), PCI board (5) made with an aluminum substrate, external lens (3) in crystal polymer, LEDs (5.1) aligned and interspersed, with the input of the external lens (3) being of the fine texture finish type and the output of the external lens (3) being of the conventional polished type.

3. CONSTRUCTION DISPOSITION APPLIED TO A VEHICLE LANTERN EQUIPPED WITH MODULAR LIGHTING DEVICES, according to claims 1 and 2, characterized in that the PCB board (5) allows its manufacture in any other type of metal, with aluminum being preferably used.

4. CONSTRUCTION DISPOSITION APPLIED IN VEHICLE LANTERN EQUIPPED WITH LIGHTING DEVICES MODULAR, according to claim 1, characterized in that each module (1) has a set of LEDs (5.1) mounted on a plate (5) with an aluminum substrate which is mounted on a polymeric heatsink (4).

5. CONSTRUCTION DISPOSITION APPLIED TO A VEHICLE LANTERN EQUIPPED WITH MODULAR LIGHTING DEVICES, according to claim 1, characterized in that the harness (2.1), with a 3-way cable, has a sealed connector (2.2) at the end that connects to the module (10).

6. CONSTRUCTION DISPOSITION APPLIED TO A VEHICLE LANTERN EQUIPPED WITH MODULAR LIGHTING DEVICES, according to claim 1, characterized in that the harness (2.1), with a 3-way cable, has a sealed connector (2.2) at the end that connects to the LED module (1).

7. CONSTRUCTION DISPOSITION APPLIED TO A VEHICLE LANTERN EQUIPPED WITH MODULAR LIGHTING DEVICES, according to claim 1, characterized in that the harness (2.1), with a 3-way cable, has a connector (2.2) sealed at both ends, which connects to the LED module (1) and the control module (10).

8. CONSTRUCTION DISPOSITION APPLIED TO A VEHICLE LANTERN EQUIPPED WITH MODULAR LIGHTING DEVICES, according to claim 1, characterized in that the plate (5) has a plurality of 8 pairs of LEDs, 8 being white LEDs and 8 being yellow LEDs.

9. CONSTRUCTION DISPOSITION APPLIED TO A VEHICLE LANTERN EQUIPPED WITH MODULAR LIGHTING DEVICES, according to claim 1, characterized by the internal lens (3) is translucent and polymeric with an input collimator in an extruded format.

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