Welcoming logo lamp with uniform projection function

Abstract

The utility model belongs to the field of automobile accessory manufacturing, and particularly relates to a uniform-projection welcome logo lamp which comprises a logo lamp shell, a PCBA board card, an LED light source driving device, a radiator, an imaging lens barrel and a mask. The logo lamp shell is connected with the mask in a clamped mode. The radiator is arranged in the logo lamp shell, and cooling fins of the radiator are inserted into and penetrate out of the bottom of the logo lamp shell and extend out of the logo lamp shell so as to achieve heat dissipation of the PCBA board card and the LED light source driving device through heat exchange with air. One end face of the PCBA board card is attached to the radiator, and an LED light source driving device is arranged in the center of the other end face of the PCBA board card. An imaging lens barrel is arranged in the logo lamp shell in the axis direction of the PCBA board card, and the imaging lens barrel is connected with the mask in a clamped mode. According to the utility model, the light source group with uneven brightness formed by the three LEDs with different brightness is matched with the brightness difference caused by the three focusing lenses and the imaging distance to compensate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of automobile accessory manufacturing, specifically a uniform projection's welcome logo lamp. BACKGROUND

[0002] The logo lamp (also known as a welcome lamp) for an automobile has become a new emerging car lamp part that highlights the personality of an automobile. The development of the welcome lamp is a bold innovation in the field of automobile accessories. On the one hand, it solves the problem of short service life and insufficient illumination brightness of a traditional welcome lamp for an automobile, and meets the function of illumination at night or in dim light. On the other hand, it improves the sense of exclusivity of a driver and enhances the fun of using a car. The above two aspects determine that the new welcome lamp has great development space in the passenger car market.

[0003] However, the existing new welcome lamp for an automobile has some defects. According to the inverse square law of optics, the illumination of imaging at a distance is greatly different from the illumination of imaging at a short distance, and the projection effect is extremely uneven when the welcome lamp is used for oblique projection. Therefore, considering the problem of extremely uneven projection effect, it is necessary to improve the design of the structure to obtain a welcome logo lamp with uniform projection. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims to provide a welcome logo lamp with uniform projection to overcome the defects of great difference between the illumination of imaging at a distance and the illumination of imaging at a short distance and extremely uneven projection effect.

[0005] The utility model employs the technical scheme that a welcome logo lamp with uniform projection comprises a logo lamp shell, a PCBA board card, an LED light source driving device, a radiator, an imaging lens barrel and a face shield.

[0006] The logo lamp shell is connected with the face shield.

[0007] The radiator is arranged in the logo lamp shell, and the radiating fins of the radiator are inserted into and pass through the bottom of the logo lamp shell and extend to the outside of the logo lamp shell to realize heat dissipation of the PCBA board card and the LED light source driving device through heat exchange with air.

[0008] The PCBA board card is attached to the radiator at one end, and the LED light source driving device is arranged at the center of the other end.

[0009] The imaging lens barrel is arranged in the logo lamp shell in the direction of the axis of the PCBA board card, and the imaging lens barrel is connected with the face shield.

[0010] The logo lamp shell is a hollow engineering plastic shell with an open end, the outer diameter of the logo lamp shell is the same as the outer diameter of the face shield, and the logo lamp shell is connected with the face shield.

[0011] The LED light source driving device comprises an LED light source lamp bead and a light source driving module.

[0012] The light source driving device is reflow soldered on a PCBA board card; the LED light source lamp bead is electrically connected with the light source driving module to realize light control.

[0013] The LED light source lamp bead is arranged at the center of the PCBA board card and is arranged opposite to the light inlet of the imaging lens barrel.

[0014] The LED light source lamp bead is arranged at the center of the PCBA board card and is arranged opposite to the light inlet of the imaging lens barrel.

[0015] The driving current of each LED light source lamp bead is different by one time in turn, and the light emitting area of the LED light source lamp bead arranged side by side from one side to the other side is 1mm 2 , 0.75mm 2 , 0.2mm 2 or less, and the angle of the light source is 120 degrees.

[0016] The imaging lens barrel comprises a focusing lens, an imaging lens and a film arranged in the barrel.

[0017] The imaging lens is arranged in parallel along the axis of the imaging lens barrel; and the film for imaging is arranged between the focusing lens and the imaging lens.

[0018] The number of the focusing lens is the same as that of the LED light source lamp bead, and the focusing lens is coaxially arranged corresponding to the position of the LED light source lamp bead to focus the light source with large power to the far end of the image projection on the film and focus the light source with small power to the near end of the image projection on the film.

[0019] The film is coaxially arranged with the imaging lens, and the height dimension of the film is equal to that of the imaging lens.

[0020] The length dimension of the plurality of focusing lenses arranged in parallel is equal to the height dimension of the film.

[0021] The mask is a plastic mask.

[0022] The utility model has the following beneficial effects and advantages:

[0023] 1. The utility model utilizes three LED light sources with different brightness to form a non-uniform light source group, and the three focusing lenses and the imaging distance cause the brightness difference to be compensated.

[0024] 2. The utility model discloses simple structure, manufacturing process is also extremely simple, and the development and production cost are reduced significantly, and it is suitable for mass production, can be used for various vehicles, and the scope of application is wide. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The intelligent lithium ion battery management system frame diagram of the utility model discloses a kind of;

[0026] Wherein, 1 is logo lamp shell, 2 is PCBA board card, 3 is LED light source lamp pearl, 4 is radiator, 5 is imaging lens barrel, 6 is face shield, 7 is focusing lens, 8 is imaging lens, 9 is film. DETAILED DESCRIPTION

[0027] The utility model will be further described in detail in connection with drawing and example.

[0028] As Figure 1 Shown, a kind of uniform projection's welcome logo lamp, it is characterized in that, including: logo lamp shell 1, PCBA board card 2, LED light source driving device, radiator 4, imaging lens barrel 5 and face shield 6;

[0029] Wherein, logo lamp shell 1 is connected with face shield 6;The radiator 4 is located in logo lamp shell 1, and the fin of the radiator 4 is inserted and passes out logo lamp shell 1 bottom, extends to logo lamp shell 1 outside, to be cooled to PCBA board card 2 and LED light source driving device by heat exchange with air;

[0030] PCBA board card 2 one end surface is attached to radiator 4, and the center of another end surface is equipped with LED light source driving device;

[0031] Imaging lens barrel 5 is equipped in logo lamp shell 1 in the axial direction of PCBA board card 2, and imaging lens barrel 5 is connected with face shield 6.

[0032] Logo lamp shell 1 is the hollow structure's engineering plastic shell of one end opening, the outer circle size of logo lamp shell 1 is same with the outer circle size of face shield 6, and logo lamp shell 1 is connected with face shield 6.

[0033] LED light source driving device includes: LED light source lamp pearl 3 and light source driving module;

[0034] Light source driving module is reflow soldered on PCBA board card 2;The LED light source lamp pearl 3 is electrically connected with light source driving module, to realize light control;

[0035] LED light source lamp pearl 3 is located at the center of PCBA board card 2, and is oppositely arranged with the light inlet of imaging lens barrel 5.

[0036] Three LED light source lamp beads 3 are arranged, and the three LED light source lamp beads 3 are connected with the PCBA board card 2 through a light source driving module and are welded on the PCBA board card 2 in parallel.

[0037] The driving current of each LED light source lamp bead 3 is different by one time in turn, and the light emitting areas of the LED light source lamp beads 3 arranged in parallel from one side to the other side are 1mm 2 , 0.75mm 2 , 0.2mm 2 and 0.1mm in turn.

[0038] The imaging lens barrel 5 comprises a focusing lens 7, an imaging lens 8 and a film 9 arranged in the barrel.

[0039] The imaging lens 8 is provided in plurality and is arranged in parallel along the axis of the imaging lens barrel 5; and the film 9 for imaging is arranged between the focusing lens 7 and the imaging lens 8.

[0040] The number of the focusing lens 7 is same as that of the LED light source lamp bead 3, and the focusing lens 7 is coaxially arranged corresponding to the position of the LED light source lamp bead 3, so as to focus the light source with large power to the far end of the image projection on the film 9 and focus the light source with small power to the near end of the image projection on the film.

[0041] The film 9 is coaxially arranged with the imaging lens 8, and the height dimension of the film 9 is same as that of the imaging lens 8.

[0042] The length dimension of the plurality of focusing lenses 7 arranged in parallel is same as the height dimension of the film 9.

[0043] The film 9 is a film or a glass sheet, and the distance between each imaging lens 8 is same.

[0044] The working principle of the utility model is as follows:

[0045] According to the embodiment and the accompanying Figure 1 , the PCBA board card 2 and the radiator 4 are connected, the heat of each component on the PCBA board card 2 is dissipated, the whole is clamped with the logo lamp shell 1, the imaging lens barrel 5 is first clamped with the mask 6, and finally the mask 6 is clamped with the logo lamp shell 1.

[0046] The three LED light source lamp beads 3 and the light source driving module thereof in the embodiment are reflow soldered on the PCBA board card 2, the light source of the three LED light source lamp beads 3 is driven by the light source driving module, and the energy is distributed through the three focusing lenses 7.

[0047] The LED light source lamp bead 3 with the lowest brightness projects the picture imaging on the near end of the film 9, such as Figure 1The LED light source lamp bead 3 with the brightest brightness is projected at the far end of the film sheet 9 to form an image, as shown in the position of the film sheet 9 at the far end. Figure 1 The LED light source lamp bead 3 with the brightest brightness is projected at the far end of the film sheet 9 to form an image, as shown in the position of the film sheet 9 at the far end.

[0048] In summary, the structure in the embodiment is assembled by the above-mentioned manner, different brightness LED light source lamp beads 3 project images at different positions of the film sheet 9 by using three focusing lenses 7, and the illumination difference caused by the distance is compensated by using the brightness difference of the light source. Finally, the image is projected by multiple imaging lenses 8. In this way, the brightness difference caused by the three focusing lenses and the imaging distance is compensated by the brightness uneven light source group formed by three different brightness LEDs, so that the oblique head imaging is uniform.

[0049] The above-mentioned is only the embodiment of the utility model, and is not used for limiting the protection scope of the utility model. Any modification, equivalent replacement, improvement, expansion and the like made within the spirit and principle of the utility model are included in the protection scope of the utility model.

Claims

1. A uniform projection of a welcome logo light, characterized in that, The application relates to a logo lamp shell (1), a PCBA board card (2), an LED light source driving device, a radiator (4), an imaging lens barrel (5) and a mask (6). The logo lamp shell (1) is connected with the mask (6). The radiator (4) is arranged in the logo lamp shell (1), and the radiating fins of the radiator (4) are inserted into and pass through the bottom of the logo lamp shell (1) and extend to the outside of the logo lamp shell (1) to realize heat dissipation of the PCBA board card (2) and the LED light source driving device through air heat exchange. One end of the PCBA board card (2) is attached to the radiator (4), and the LED light source driving device is arranged at the center of the other end. The imaging lens barrel (5) is arranged in the logo lamp shell (1) in the axial direction of the PCBA board card (2), and the imaging lens barrel (5) is connected with the mask (6). The logo lamp shell (1) is a hollow engineering plastic shell with an open end, the outer diameter of the logo lamp shell (1) is the same as that of the mask (6), and the logo lamp shell (1) is connected with the mask (6).

2. A uniform projection welcome logo light as claimed in claim 1, wherein, The LED light source driving device comprises an LED light source lamp bead (3) and a light source driving module.

3. A uniform projection welcome logo light as defined in claim 1, wherein, The light source driving module is reflow soldered on the PCBA board card (2), and the LED light source lamp bead (3) is electrically connected with the light source driving module to realize light control. The LED light source lamp bead (3) is arranged at the center of the PCBA board card (2) and is oppositely arranged with the light inlet of the imaging lens barrel (5). The LED light source lamp bead (3) is arranged with three LED light source lamp beads (3) which are connected with the PCBA board card (2) through the light source driving module and are reflow soldered on the PCBA board card (2).

4. A uniform projection welcome logo light as claimed in claim 3, wherein, The imaging lens barrel (5) comprises a focusing lens (7), imaging lenses (8) and a film (9) arranged in the barrel.

5. A uniform projection welcome logo light according to claim 3 or 4, characterized in that The driving current of each LED light source lamp bead (3) is sequentially different by one time, and the light emitting area of the LED light source lamp beads (3) arranged side by side from one side to the other is sequentially: 1mm 2 , 0.75mm 2 , 0.2mm 2 or less, and the angle of the light source is 120 degrees.

6. A uniform projection welcome logo light as defined in claim 1, wherein, The imaging lenses (8) are arranged in parallel along the axis of the imaging lens barrel (5), and the film (9) is arranged between the focusing lens (7) and the imaging lenses (8) for imaging. The number of the focusing lenses (7) is the same as that of the LED light source lamp beads (3), and the focusing lenses (7) are coaxially arranged corresponding to the positions of the LED light source lamp beads (3) to sequentially focus the light sources with large power to the far end of the image projection on the film (9) and focus the light sources with small power to the near end of the image projection on the film. The film (9) is coaxially arranged with the imaging lenses (8), and the height of the film (9) is equal to that of the imaging lenses (8).

7. A uniform projection welcome logo light as defined in claim 6, wherein, The length of the focusing lenses (7) arranged in parallel is equal to the height of the film (9). The film (9) is a film or a glass sheet.

8. A uniform projection welcome logo light as defined in claim 6, wherein, The distance between the imaging lenses (8) is equal.

9. A uniform projection welcome logo light as defined in claim 6, wherein, The mask (6) is a plastic mask.

10. A uniform projection welcome logo light as defined in claim 1, wherein, ​

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