Projection module and vehicle lamp

Abstract

The utility model discloses a projection module and a vehicle lamp, and relates to the technical field of vehicle lamps. The projection assembly is arranged in front of the light source assembly, the projection assembly comprises a projection lens, an inner lens and a light isolation piece, the light isolation piece is located between the projection lens and the inner lens, a hollowed-out area is arranged on the light isolation piece so that a projection image can be formed in the hollowed-out area, and light emitted by the light source assembly sequentially passes through the inner lens, the hollowed-out area of the light isolation piece and the projection lens to be emitted out. According to the projection module provided by the invention, the light isolation sheet can be arranged between the inner lens of the projection assembly and the projection lens, the light passes through the hollow area on the light isolation sheet to enter the projection lens, and the image formed by the hollow area on the light isolation sheet is projected to the ground, so that the image display effect of a signal lamp can be realized.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle lamps, and more specifically, to a projection module and a vehicle lamp. Background Art

[0002] Traditional signal lights typically utilize an LED light source and a concentrator, typically a light guide or reflector, to channel light from the LED light source through the concentrator, thereby enhancing the lighting effect. However, current signal lights can only illuminate, not display patterns. The resulting lighting effects are relatively limited and no longer meet user needs.

[0003] Therefore, how to achieve the image display effect of the signal light has become a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a projection module to achieve the image display effect of a signal light.

[0005] Another object of the present application is to provide a vehicle lamp having the above-mentioned projection module.

[0006] To achieve the above objectives, this application provides the following technical solutions:

[0007] A projection module, comprising:

[0008] Light source assembly;

[0009] A projection assembly is arranged in front of the light source assembly, and the projection assembly includes a projection lens, an inner lens and a light partition. The light partition is located between the projection lens and the inner lens. A hollow area is provided on the light partition to form a projected image in the hollow area. The light emitted by the light source assembly passes through the inner lens, the hollow area of the light partition and the projection lens in sequence.

[0010] Optionally, in the above-mentioned projection module, the projection lens includes a mounting seat and a projection lens arranged on the mounting seat, and the mounting seat and the inner lens are connected by heat riveting to press the light isolation sheet between the mounting seat and the inner lens.

[0011] Optionally, in the above-mentioned projection module, the outer surface of the projection lens is provided with prismatic stripes, and the prismatic stripes are provided with leather grain textures.

[0012] Optionally, in the above-mentioned projection module, the light source assembly includes a lamp board and a heat sink, and the lamp board and the heat sink are connected via fasteners.

[0013] Optionally, in the above projection module, the radiator includes a mounting plate and heat dissipation fins, the lamp board is located on one side of the mounting plate, and the heat dissipation fins are located on a side of the mounting plate away from the lamp board.

[0014] Optionally, in the above-mentioned projection module, a first positioning column for positioning the lamp board and a second positioning column for positioning the projection assembly are provided on the mounting plate, a first positioning hole cooperating with the first positioning column is provided on the lamp board, and a second positioning hole cooperating with the second positioning column is provided on the mounting seat of the projection lens.

[0015] Optionally, the above-mentioned projection module further includes a module decorative frame, which limits a housing cavity for accommodating the projection assembly, and the module decorative frame is provided with a cylindrical body adapted to the projection lens, and the module decorative frame is connected to the mounting plate through fasteners to press the projection assembly.

[0016] Optionally, in the above-mentioned projection module, a light outlet is provided at one end of the cylindrical body away from the accommodating cavity, so that the light emitted by the light source assembly passes through the projection assembly and is emitted from the light outlet.

[0017] Optionally, the projection module further comprises an adjusting slider, which is fixed on the module decorative frame and is used to adjust the distance between the projection module and the lamp housing.

[0018] A vehicle lamp comprises a lamp housing and a projection module as described in any one of the above items, wherein the projection module is sealed to the lamp housing via a sealing member.

[0019] The projection module provided by this application uses the inner lens of the projection assembly to focus and shape the light emitted by the light source assembly, ensuring that more light enters the projection lens through the hollow area of the light barrier, and projects the image formed by the hollow area on the light barrier onto the ground. As can be seen from the above example, the projection module provided by this application can be provided with a light barrier between the inner lens of the projection assembly and the projection lens, and light enters the projection lens through the hollow area on the light barrier, and projects the image formed by the hollow area on the light barrier onto the ground, thereby achieving the image display effect of the signal light.

[0020] The technical features mentioned above, the technical features described below, and the technical features shown individually in the accompanying drawings may be combined arbitrarily, as long as the combined technical features do not conflict with each other. All possible feature combinations are technical contents explicitly described in this document. Any of the multiple sub-features included in the same statement can be applied independently and does not necessarily have to be applied in conjunction with the other sub-features. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without any creative work.

[0022] Figure 1 An exploded view of the projection module provided in an embodiment of the present application;

[0023] Figure 2 A schematic diagram of the structure of the projection module provided in an embodiment of the present application;

[0024] Figure 3 A schematic diagram of the structure of a projection lens provided in an embodiment of the present application;

[0025] Figure 4 A schematic diagram of the structure of the inner lens provided in an embodiment of the present application;

[0026] Figure 5 A schematic structural diagram of a light-isolating sheet provided in an embodiment of the present application;

[0027] Figure 6 This is a schematic diagram of the assembly of the projection module and the lamp housing provided in an embodiment of the present application.

[0028] Among them, 100 is a light source assembly, 101 is a light board, 1011 is a first positioning hole, 102 is a heat sink, 1021 is a mounting plate, 1022 is a heat dissipation fin, 1023 is a first positioning column, and 1024 is a second positioning column;

[0029] 200 is a projection assembly, 201 is a projection lens, 2011 is a mounting seat, 2012 is a projection lens, 2013 is a prismatic stripe, 2014 is a second positioning hole, 2015 is a positioning protrusion, 202 is an inner lens, 2021 is a positioning groove, 203 is a light-isolating sheet, 2031 is a hollow area, and 2032 is an avoidance groove;

[0030] 300 is the module frame, 301 is the accommodating cavity, 302 is the cylinder, 3021 is the light outlet, 303 is the mounting slot, and 304 is the adjustment slider;

[0031] 500 is the lamp housing, 501 is the sealing part, 5011 is the soft rubber sealing frame, 5012 is the hard rubber sealing ring, and 502 is the adjusting bolt. DETAILED DESCRIPTION

[0032] The core of this application is to provide a projection module to achieve the image display effect of a signal light.

[0033] Another core of the present application is to provide a vehicle lamp having the above-mentioned projection module.

[0034] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0035] Traditional signal lights typically utilize an LED light source and a concentrator, typically a light guide or reflector, to channel light from the LED light source through the concentrator, thereby enhancing the lighting effect. However, current signal lights can only illuminate, not display patterns. The resulting lighting effects are relatively limited and no longer meet user needs.

[0036] For this reason, Figure 1 and Figure 2 As shown, the embodiment of the present application discloses a projection module, including a light source assembly 100 and a projection assembly 200. By disposing a light barrier 203 between an inner lens 202 of the projection assembly 200 and a projection lens 201, light passes through a hollow area 2031 on the light barrier 203 and enters the projection lens 201, and an image formed by the hollow area 2031 on the light barrier 203 is projected onto the ground, thereby achieving an image display effect of a signal light.

[0037] The following will be combined Figures 1 to 6 The projection module disclosed in the embodiments of the present application is specifically explained and illustrated.

[0038] Among them, Figure 1 As shown, the projection assembly 200 is disposed in front of the light source assembly 100, that is, the projection assembly 200 is located in the light emitting direction of the light source assembly 100, so that the light emitted by the light source assembly 100 can be emitted through the projection assembly 200. The projection assembly 200 includes a projection lens 201, an inner lens 202, and a light partition 203. The light partition 203 is located between the projection lens 201 and the inner lens 202. The light partition 203 is provided with a hollow area 2031 to form a projected image in the hollow area 2031. The inner lens 202 of the projection assembly 200 focuses and shapes the light emitted by the light source assembly 100, ensuring that more light enters the projection lens 201 through the hollow area 2031 of the light partition 203. The image formed in the hollow area 2031 of the light partition 203 is projected onto the ground, thereby achieving the image display effect of the signal light.

[0039] In the above embodiment, the light isolation sheet 203 can be made of metal, which can not only form the pattern but also play the role of heat dissipation. In addition, the hollow area 2031 of the light isolation sheet 203 can be composed of different geometric shapes to form different projection images, such as trapezoids of different sizes, such as Figure 5 As shown, or circular, rectangular, etc. Furthermore, the two sides of the light partition sheet 203 may also adopt different processing schemes. For example, the side of the light partition sheet 203 close to the light source assembly 100 may be aluminum-plated to increase the reflectivity of the light partition sheet 203 close to the light source assembly 100, while the side of the light partition sheet 203 close to the projection lens 201 may not be aluminum-plated to create a low reflectivity effect on the side of the light partition sheet 203 close to the projection lens 201. It should be noted that the light partition sheet 203 may also be made of film to form a more detailed projection pattern.

[0040] In some embodiments, as Figure 1 and Figure 3 As shown, the projection lens 201 includes a mounting seat 2011 and a projection lens 2012 disposed on the mounting seat 2011, and the mounting seat 2011 and the inner lens 202 are connected by heat riveting to press the light-isolating sheet 203 between the mounting seat 2011 and the inner lens 202. Specifically, the mounting seat 2011 has a first side surface and a second side surface that are oppositely disposed, the projection lens 2012 is disposed on the first side surface of the mounting seat 2011, and a light inlet is disposed on the second side surface of the mounting seat 2011 so that light can be emitted from the light inlet through the projection lens 2012. At the same time, a plurality of positioning protrusions 2015 are disposed around the light inlet, and the positioning protrusions 2015 can be two, three, four or more, and a plurality of positioning grooves 2021 that cooperate with the positioning protrusions 2015 are disposed on the inner lens 202, as shown in FIG. Figure 4 As shown. By cooperating the positioning protrusion 2015 of the mounting seat 2011 with the positioning groove 2021 on the inner lens 202, the projection lens 201 and the inner lens 202 can be installed and positioned, which can avoid the projection lens 201 and the inner lens 202 from being offset, resulting in light offset, thereby improving the projection effect. In addition, as Figure 5 As shown, an avoidance groove 2032 for avoiding the positioning protrusion 2015 is provided at the edge of the light-isolating sheet 203. At the same time, the avoidance groove 2032 cooperates with the positioning protrusion 2015 to limit the light-isolating sheet 203, thereby preventing the light-isolating sheet 203 from being misaligned when the mounting seat 2011 and the inner lens 202 are hot-riveted, thereby affecting the projection effect.

[0041] In some embodiments, as Figure 1 and Figure 3As shown, the outer surface of the projection lens 2012 can be evenly distributed with multiple prism stripes 2013 along the light output direction of the projection lens 2012 to eliminate stray light. At the same time, a dermatoglyphic texture of the dermatoglyphic model VDI30 can be set on the prism stripes 2013, thereby effectively solving the problem of projection stray light.

[0042] like Figure 1 As shown, the light source assembly 100 includes a lamp board 101 and a heat sink 102 , and the lamp board 101 and the heat sink 102 can be connected by fasteners such as bolts.

[0043] In some embodiments, as Figure 1 and Figure 2 As shown, the heat sink 102 includes a mounting plate 1021 and heat dissipating fins 1022. For ease of understanding, the two oppositely disposed side surfaces of the mounting plate 1021 are defined as a first side surface and a second side surface, respectively. The lamp board 101 is located on the first side surface of the mounting plate 1021, and the heat dissipating fins 1022 are located on the mounting plate 1021 and on the second side surface facing away from the lamp board 101. There may be multiple heat dissipating fins 1022, and each heat dissipating fin 1022 may be spaced apart on the second side surface of the mounting plate 1021, so that a heat dissipation space for the heat dissipating fins 1022 is formed between two adjacent heat dissipating fins 1022. Specifically, the mounting plate 1021 may be provided with a first positioning post 1023 for positioning the lamp board 101 and a second positioning post 1024 for positioning the projection assembly 200. A first positioning hole 1011 cooperating with the first positioning post 1023 is provided on the lamp board 101, and a second positioning hole 2014 cooperating with the second positioning post 1024 is provided on the mounting base 2011 of the projection lens 201. During assembly, the first positioning hole 1011 of the lamp panel 101 is inserted into the corresponding first positioning post 1023 on the mounting plate 1021 to position the lamp panel 101, and the lamp panel 101 is fixed to the first side surface of the mounting plate 1021 using fasteners such as bolts. Then, the second positioning hole 2014 on the mounting base 2011 of the projection lens 201 is inserted into the corresponding second positioning post 1024 of the mounting plate 1021 to achieve the installation and positioning of the projection assembly 200. It should be noted that two first positioning posts 1023 and two second positioning posts 1024 can be used respectively, and the two first positioning posts 1023 and second positioning posts 1024 can be located at two diagonal positions of the mounting plate 1021 respectively to avoid mutual interference. Of course, the number of first positioning posts 1023 and second positioning posts 1024 can also be three, four, or more, and this is not limited herein.

[0044] In order to fix the projection assembly 200, in some embodiments, as Figure 1 and Figure 2As shown, the projection module also includes a module decorative frame 300, which has a receiving cavity 301 for accommodating the projection assembly 200. The module decorative frame 300 is also provided with a cylindrical body 302 adapted to the projection lens 201. Thus, the module decorative frame 300 can be connected to the mounting plate 1021 using fasteners such as bolts to compress the projection assembly 200. To ensure that the projection lens 201 can project a pattern onto the ground, a light outlet 3021 is provided at one end of the cylindrical body 302 away from the receiving cavity 301. This allows light emitted by the light source assembly 100 to pass through the projection lens 201 and be emitted through the light outlet 3021, thereby achieving the effect of the projection lens 201 projecting a pattern onto the ground.

[0045] In some embodiments, as Figure 2 and Figure 6 As shown, the projection module also includes an adjustment slider 304, which is fixed to the module decorative frame 300. The adjustment slider 304 is used to adjust the distance between the projection module and the lamp housing 500. Specifically, a mounting slot 303 is provided on the module decorative frame 300, and the adjustment slider 304 is snapped into the mounting slot 303, thereby securing the adjustment slider 304 to the module decorative frame 300. Furthermore, an adjustment bolt 502 is provided on the lamp housing 500. One end of the adjustment bolt 502 is movably connected to the adjustment slider 304. By rotating the adjustment bolt 502, the end of the adjustment bolt 502 drives the adjustment slider 304 toward or away from the lamp housing 500, thereby adjusting the distance between the projection module and the lamp housing 500.

[0046] The embodiment of the present application further discloses a vehicle lamp, comprising a lamp housing 500 and the projection module disclosed in the above embodiment. Therefore, the projection module has all the technical effects of the above projection modules, which will not be described in detail herein.

[0047] The projection module can be sealed to the lamp housing 500 via a seal 501. Specifically, the seal 501 can include a soft rubber seal frame 5011 that contacts the lamp housing 500 and a hard rubber seal ring 5012 for compressing the soft rubber seal frame 5011. Thus, the soft rubber seal frame 5011 and the hard rubber seal ring 5012 can achieve a sealed connection between the projection module and the lamp housing 500. When the adjusting bolt 502 is rotated, causing the end of the adjusting bolt 502 to drive the adjusting slider 304 toward or away from the lamp housing 500, the soft rubber seal frame 5011 can elastically deform, thereby maintaining a seal between the projection module and the lamp housing 500.

[0048] The terms "first," "second," and so on in the specification, claims, and drawings of this application are used to distinguish between different items, not to describe a specific order. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements and may include steps or elements that are not listed.

[0049] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A projection module, characterized in that: include: Light source assembly (100); A projection assembly (200) is arranged in front of the light source assembly (100), the projection assembly (200) comprising a projection lens (201), an inner lens (202) and a light-isolating sheet (203), the light-isolating sheet (203) being located between the projection lens (201) and the inner lens (202), the light-isolating sheet (203) being provided with a hollow area (2031) to form a projected image in the hollow area (2031), and the light emitted by the light source assembly (100) sequentially passing through the inner lens (202), the hollow area (2031) of the light-isolating sheet (203) and the projection lens (201) for emission.

2. The projection module according to claim 1, wherein: The projection lens (201) comprises a mounting seat (2011) and a projection lens (2012) arranged on the mounting seat (2011); the mounting seat (2011) and the inner lens (202) are connected by heat riveting, so that the light isolation sheet (203) is pressed tightly between the mounting seat (2011) and the inner lens (202).

3. The projection module according to claim 2, characterized in that: The outer surface of the projection lens (2012) is provided with prismatic stripes (2013), and the prismatic stripes (2013) are provided with a leather grain texture.

4. The projection module according to claim 2, wherein: The light source assembly (100) comprises a lamp board (101) and a heat sink (102); the lamp board (101) and the heat sink (102) are connected via fasteners.

5. The projection module according to claim 4, characterized in that: The radiator (102) comprises a mounting plate (1021) and heat dissipation fins (1022); the lamp board (101) is located on one side of the mounting plate (1021); and the heat dissipation fins (1022) are located on a side of the mounting plate (1021) facing away from the lamp board (101).

6. The projection module according to claim 5, characterized in that: The mounting plate (1021) is provided with a first positioning column (1023) for positioning the lamp board (101) and a second positioning column (1024) for positioning the projection assembly (200); the lamp board (101) is provided with a first positioning hole (1011) cooperating with the first positioning column (1023); and the mounting seat (2011) of the projection lens (201) is provided with a second positioning hole (2014) cooperating with the second positioning column (1024).

7. The projection module according to claim 5, characterized in that: The module also includes a module decorative frame (300), wherein the module decorative frame (300) defines an accommodating cavity (301) for accommodating the projection assembly (200), and the module decorative frame (300) is provided with a cylinder (302) adapted to the projection lens (201), and the module decorative frame (300) is connected to the mounting plate (1021) via fasteners to compress the projection assembly (200).

8. The projection module according to claim 7, wherein: A light outlet (3021) is provided at one end of the cylindrical body (302) away from the accommodating cavity (301), so that light emitted by the light source assembly (100) passes through the projection assembly (200) and is emitted from the light outlet (3021).

9. The projection module according to claim 7, wherein: It also includes an adjusting slider (304), the adjusting slider (304) being fixed on the module decorative frame (300), and the adjusting slider (304) being used to adjust the distance between the projection module and the lamp housing (500).

10. A vehicle lamp, characterized in that: It comprises a lamp housing (500) and a projection module according to any one of claims 1 to 9, wherein the projection module is sealedly connected to the lamp housing (500) via a sealing member (501).

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