High beam module and automobile headlamp

Abstract

The utility model discloses a high beam module and an automobile headlamp, and relates to the technical field of automobile parts, the high beam module comprises a circuit board, a reflection element and an emergent lens, the circuit board is provided with a plurality of high beam light sources and at least one accompanying lightening light source, the reflecting element and the circuit board are oppositely arranged, the reflecting element comprises a plurality of first reflecting parts in one-to-one correspondence with the high-beam light sources, light emitted by the high-beam light sources is reflected by the corresponding first reflecting parts and then is emitted by the emitting lens to form a high-beam light type, and the reflecting element further comprises second reflecting parts corresponding to the accompanying lighting light sources; and the accompanying lightening light emitted by the accompanying lightening light source is reflected by the corresponding second reflecting part and then is emitted through the emergent lens, so that the high beam module is lightened when the high beam module does not work. According to the high beam module and the automobile headlamp, the lighting modeling attractiveness of the headlamp under the low beam working condition can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile parts, and in particular to a high beam module and an automobile headlamp. Background Art

[0002] In recent years, automobile headlights have developed rapidly, from early halogen lamps to later xenon lamps, and then to current LED and laser light sources, making automobile headlights more intelligent and more differentiated in appearance. Among the various light sources of automobile headlights, LED is gradually gaining attention from automobile manufacturers due to its excellent performance and low-cost advantages. With the development of LED, its corresponding light distribution structure is also gradually developing. The LED light source lighting system commonly used in automobile headlights in the prior art generally includes a light source, a focusing element and an optical lens. The light emitted by the light source is converged by the focusing element and collimated by the optical lens before being emitted. Among them, a cutoff line structure is provided on the focusing element, so that the light emitted by the optical lens forms an illumination light shape with a light and dark cutoff line.

[0003] In the headlight of a car, the high and low beam modules are important components, including the high and low beam integrated modules and the high and low beam split modules. In the high and low beam split modules of the prior art, when the headlight emits high beam, both the high beam module and the low beam module will be lit, and when the headlight emits low beam, only the low beam module will be lit, and the high beam module will not be lit, that is, it will not emit light, which will cause a visual hole at the high beam module of the car headlight, and under the low beam working condition, the overall lighting shape of the headlight is not beautiful. Utility Model Content

[0004] The purpose of the present application is to provide a high beam module and a vehicle headlamp, which can improve the aesthetic appearance of the headlamp when it is lit under low beam conditions.

[0005] On the one hand, an embodiment of the present application provides a high beam module, including a circuit board, a reflective element and an output lens. A plurality of high beam light sources and at least one accompanying lighting light source are arranged on the circuit board. The reflective element is arranged opposite to the circuit board and includes a plurality of first reflective parts corresponding to the high beam light sources one by one. The light emitted by the high beam light source is reflected by the corresponding first reflective parts and then emitted by the output lens to form a high beam light pattern. The reflective element also includes a second reflective part corresponding to the accompanying lighting light source. The accompanying lighting light emitted by the accompanying lighting light source is reflected by the corresponding second reflective part and then emitted by the output lens, so that the high beam module is illuminated when the high beam module is not working.

[0006] As an implementable manner, the second reflecting part includes a plurality of second reflecting parts, and the plurality of second reflecting parts are correspondingly connected to the first reflecting parts.

[0007] As an implementable manner, a plurality of high-beam light sources are arranged in a transverse direction, a single accompanying light source is provided in front of the plurality of high-beam light sources, and a plurality of second reflecting portions are provided corresponding to the accompanying light source.

[0008] As an implementable method, multiple first reflecting parts are connected in sequence along the horizontal direction, and the second reflecting parts are connected one-to-one with the first reflecting parts located in the middle position. The accompanying lighting light emitted by the lighting light source is projected onto the multiple second reflecting parts and reflected to the output lens through the multiple second reflecting parts.

[0009] As an implementable manner, the first reflecting portion is a parabolic reflecting surface, and the second reflecting portion is an ellipsoidal reflecting surface connected to the end of the parabolic reflecting surface.

[0010] As an implementable manner, the first reflecting portion and the second reflecting portion are connected along a first direction, and an arc length of the second reflecting portion along the first direction is between 10 mm and 20 mm.

[0011] As an implementable manner, the high beam module also includes a heat sink, which includes a mounting surface and a reflective surface arranged on the mounting surface. The mounting surface is used to mount the circuit board, and the accompanying lighting light reflected by the second reflective portion is reflected by the reflective surface and then incident on the output lens.

[0012] As an practicable manner, the reflective surface is an aluminum-plated reflective surface.

[0013] As an implementable manner, the first reflecting portion and the second reflecting portion are integrally formed.

[0014] On the other hand, an embodiment of the present application provides a vehicle headlamp, including a low beam module and the above-mentioned high beam module, wherein the accompanying lighting light source of the high beam module emits accompanying lighting light when the low beam module forms a low beam light pattern, so that the high beam module is lit when the high beam module is not working.

[0015] The beneficial effects of the embodiments of the present application include:

[0016] The high beam module provided by the present application includes a circuit board, a reflective element and an output lens. A plurality of high beam light sources and at least one accompanying lighting light source are arranged on the circuit board. The reflective element is arranged relative to the circuit board and includes a plurality of first reflective parts corresponding to the high beam light sources one by one. The reflective element also includes a second reflective part corresponding to the accompanying lighting light source. The light emitted by the high beam light source is reflected by the corresponding first reflective part and then emitted by the output lens to form a high beam light pattern. The accompanying lighting light emitted by the accompanying lighting light source is reflected by the second reflective part and then emitted by the output lens. Since the accompanying lighting light source is arranged on the circuit board of the high beam module, when the headlamp forms a low beam light pattern, the accompanying lighting light source illuminates the high beam module, so that the high beam module does not appear visually empty when it is not working, and the lighting shape of the headlamp is more beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 One of the structural schematic diagrams of a high beam module provided in an embodiment of the present application;

[0019] Figure 2 A second structural diagram of a high beam module provided in an embodiment of the present application;

[0020] Figure 3 A third structural diagram of a high beam module provided in an embodiment of the present application;

[0021] Figure 4 A fourth structural diagram of a high beam module provided in an embodiment of the present application;

[0022] Figure 5 A fifth structural diagram of a high beam module provided in an embodiment of the present application;

[0023] Figure 6 A light path diagram of light emitted by a light source provided by an embodiment of the present application;

[0024] Figure 7 A low beam light pattern formed by projection of a low beam module in the prior art;

[0025] Figure 8 One of the light patterns formed by the light emitted by the light source provided in the embodiment of the present application;

[0026] Fig. 9 A second light pattern diagram formed by light emitted by a light source provided in an embodiment of the present application;

[0027] Fig.10 The low beam light pattern diagram of the automotive headlamp provided for this application.

[0028] Icons: 100 - high beam module; 110 - circuit board; 111 - high beam light source; 112 - accompanying lighting light source; 120 - reflecting element; 121 - first reflecting part; 122 - second reflecting part; 130 - exit lens; 140 - heat sink; 141 - reflecting surface. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of this application, it should be noted that the terms "center", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] The present application provides a high beam module 100, such as Figure 1 and Figure 2 As shown, it includes a circuit board 110, a reflective element 120 and an output lens 130. A plurality of high-beam light sources 111 and at least one accompanying lighting light source 112 are arranged on the circuit board 110. The reflective element 120 is arranged opposite to the circuit board 110 and includes a plurality of first reflective portions 121 corresponding one-to-one to the high-beam light sources 111. The reflective element 120 also includes a second reflective portion 122 corresponding to the accompanying lighting light sources 112. The light emitted by the high-beam light source 111 is reflected by the corresponding first reflective portion 121 and then emitted by the output lens 130 to form a high-beam light pattern. The accompanying lighting light emitted by the accompanying lighting light source 112 is reflected by the corresponding second reflective portion 122 and then emitted by the output lens 130, so that when the low-beam module emits to form a low-beam light pattern, the high-beam module 100 is lit.

[0034] The high beam module 100 of the embodiment of the present application is applied to a car headlamp, wherein the car headlamp includes a low beam module for forming a low beam light pattern and a high beam module 100 for forming a high beam light pattern. When the car headlamp forms a high beam light pattern, the low beam module and the high beam module 100 emit light at the same time. When the car forms a low beam light pattern, while controlling the low beam module to emit low beam light, the accompanying light source 112 in the high beam module 100 is controlled to emit accompanying light, so that the high beam module 100 can also be lit, and the lighting appearance is more beautiful.

[0035] Specifically, the high beam module 100 of the embodiment of the present application includes a circuit board 110, on which a plurality of high beam light sources 111 and at least one accompanying light source 112 are arranged, and a reflective element 120 includes a plurality of first reflective portions 121 corresponding to the high beam light sources 111. When the headlight forms a high beam light pattern, the light emitted by the plurality of high beam light sources 111 is reflected by the corresponding first reflective portions 121 and then emitted through an emission lens 130. When the headlight forms a low beam light pattern, the low beam module emits light, and when the low beam module emits light, the accompanying light source 112 emits accompanying light to illuminate the high beam module 100, so that the lighting appearance of the headlight during low beam illumination is more beautiful, such as Figure 6 As shown, the accompanying light is reflected by the second reflection part 122 and then emitted through the emission lens 130. Specifically, the light pattern formed by the accompanying light is as follows: Figure 8 and Fig. 9 As shown, the low beam pattern in the lighting state is as follows Fig.10 As shown, the low beam light type in the prior art is as follows Figure 7 As shown, compared with the prior art, Fig.10 and Figure 7 The light patterns of the high beam module 100 and the low beam module 100 are not much different, and the influence of the accompanying lighting light pattern on the low beam light pattern is almost negligible, but at the same time, due to the existence of the accompanying lighting function, the lighting appearance of the high beam module during low beam lighting is more beautiful. Since the accompanying lighting light source 112 is arranged in the high beam module 100, the high beam module 100 does not appear hollow visually when it is not working, and the lighting shape of the headlamp is more beautiful.

[0036] The accompanying light source 112 is disposed on the circuit board 110 of the high beam module 100 , so that the high beam light source 111 and the accompanying light source 112 are located on the same circuit board 110 , making the structure of the high beam module 100 more compact and saving costs.

[0037] In addition, in the prior art, when the car forms a low beam light pattern, only the low beam module is lit, and the high beam module 100 is not lit, that is, it does not emit light, which will cause a visual sense of emptiness, making the overall shape of the headlamp inconsistent, the lighting appearance is not beautiful, and reducing the user experience. The high beam module 100 provided in the embodiment of the present application emits accompanying lighting light when the low beam is illuminated, and the accompanying lighting light can illuminate the high beam module 100, avoiding the visual sense of holes and making the overall lighting shape of the headlamp more beautiful.

[0038] The number of high beam light sources 111 is not limited in the present embodiment of the present application, and those skilled in the art may make specific settings according to actual conditions. For example, Figure 1 As shown, the high beam light sources 111 include 6, and the corresponding number of the first reflective parts 121 is 6. The number of the accompanying light sources 112 is not limited in the embodiment of the present application, and for example, it can be one.

[0039] The high beam module 100 provided in the present application includes a circuit board 110, a reflective element 120 and an exit lens 130. A plurality of high beam light sources 111 and at least one accompanying light source 112 are arranged on the circuit board 110. The reflective element 120 is arranged relative to the circuit board 110 and includes a plurality of first reflective portions 121 corresponding to the high beam light sources 111 one by one. The reflective element 120 also includes a second reflective portion 122 corresponding to the accompanying light source 112. The light emitted from the high beam light source 111 passes through the corresponding first reflective portion 121. The light emitted by the accompanying lighting light source 112 is reflected by the second reflecting portion 121 and then emitted by the emission lens 130 to form a high beam light pattern. The accompanying lighting light emitted by the accompanying lighting light source 112 is reflected by the second reflecting portion 122 and then emitted by the emission lens 130. Since the accompanying lighting light source 112 is arranged on the circuit board 110 of the high beam module 100, when the headlamp forms a low beam light pattern, the accompanying lighting light source 112 illuminates the high beam module 100, so that the high beam module 100 does not appear visually empty when it is not working, and the shape of the car headlamp when lit is more beautiful.

[0040] Optional, such as Figure 2 , Figure 3 and Figure 4 As shown, the second reflective portion 122 includes a plurality of second reflective portions 122 , and the plurality of second reflective portions 122 are correspondingly connected to the first reflective portion 121 .

[0041] The first reflecting portion 121 is used to reflect the high beam light emitted by the high beam light source 111, and the second reflecting portion 122 is used to reflect the accompanying lighting light emitted by the accompanying lighting light source 112, and the high beam light source 111 and the accompanying lighting light source 112 are both arranged on the circuit board 110, so that the distance between the high beam light source 111 and the accompanying lighting light source 112 is relatively close, and in order to facilitate the arrangement of the first reflecting portion 121 and the second reflecting portion 122, the first reflecting portion 121 and the second reflecting portion 122 are connected. Specifically, when the second reflecting portion 122 includes a plurality of second reflecting portions, in order to facilitate the connection of the second reflecting portions 122, the plurality of second reflecting portions 122 are connected to the first reflecting portion 121 accordingly.

[0042] When the number of the second reflecting parts 122 is less than the number of the first reflecting parts 121 , the second reflecting parts 122 are correspondingly connected to parts of the first reflecting parts 121 . It can be understood that the second reflecting parts 122 should be arranged close to the accompanying light source 112 .

[0043] The number of the second reflective portions 122 may correspond to or may not correspond to the number of the accompanying light sources 112 , that is, when there is only one accompanying light source 112 , a plurality of second reflective portions 122 may be provided.

[0044] In one possible implementation of the embodiment of the present application, Figure 1 and Figure 5 As shown, a plurality of high-beam light sources 111 are arranged in a horizontal direction, and a single accompanying light source 112 is disposed in front of the plurality of high-beam light sources 111 , and a plurality of second reflective portions 122 are disposed corresponding to the accompanying light source 112 .

[0045] As can be seen from the above, the accompanying lighting light source 112 is used to make the high beam module 100 emit accompanying lighting light when the low beam module is working, so as to fill the visual emptiness of the high beam module 100 when the low beam module is working. There is no specific requirement for light intensity and brightness. Therefore, in order to reduce the number of light sources in the high beam module 100 and reduce costs, the accompanying lighting light source 112 is set to one. In order to make the accompanying lighting light be projected to the exit lens 130 as evenly as possible, the accompanying lighting light source 112 is set in front of the multiple high beam light sources 111. The accompanying lighting light emitted by the accompanying lighting light source 112 is reflected by the multiple second reflection parts 122 and can be reflected to the exit lens 130 as evenly as possible to achieve uniform lighting.

[0046] Optionally, multiple first reflecting parts 121 are connected in sequence along the horizontal direction, and the second reflecting parts 122 are connected one-to-one with the first reflecting parts 121 located in the middle position. The light emitted by the lit light source 112 is projected onto the multiple second reflecting parts 122 and reflected by the multiple second reflecting parts 122 to the output lens 130.

[0047] There is one accompanying lighting light source 112 , and it is correspondingly arranged in front of the high-beam light source 111 located in the middle position, so that the corresponding plurality of second reflection parts 122 located in the middle position can reflect the accompanying lighting light.

[0048] In one possible implementation of the embodiment of the present application, Figure 3 and Figure 4 As shown, the first reflecting portion 121 is a parabolic reflecting surface 141 , and the second reflecting portion 122 is an ellipsoidal reflecting surface connected to the end of the parabolic reflecting surface 141 .

[0049] The first reflector 121 is a parabolic reflector 141, which is used to reflect the high beam emitted by the high beam light source 111. The parabolic reflector 141 can better reflect the high beam. The second reflector 122 is an ellipsoidal reflector connected to the end of the parabolic reflector 141, which is used to reflect the accompanying lighting light.

[0050] Optional, such as Figure 2 and Figure 3 As shown, the first reflecting portion 121 and the second reflecting portion 122 are connected along a first direction, and an arc length of the second reflecting portion 122 along the first direction is between 10 mm and 20 mm.

[0051] The second reflecting portion 122 is used to reflect the accompanying lighting light. According to the setting position of the accompanying lighting light source 112, the arc length of the second reflecting portion 122 along the first direction is set between 10-20 mm. On the one hand, it is avoided that the arc length of the second reflecting portion 122 is too short and cannot reflect the accompanying lighting light well. On the other hand, it is avoided that the arc length of the second reflecting portion 122 is too long, which makes the volume of the reflecting element 120 larger and the second reflecting portion 122 is easily peeled off from the connection with the first reflecting portion 121.

[0052] The specific value of the arc length of the second reflective portion 122 along the first direction is not limited in the embodiment of the present application, and for example, it can be 10 mm, 15 mm, 20 mm, etc.

[0053] It should be noted that the arc length of the second reflecting portion 122 along the first direction is related to factors such as the distance between the accompanying lighting light source 112 and the high beam light source 111, the arc length of the first reflecting portion 121 along the first direction and the curvature of the second reflecting portion 122. Those skilled in the art can adjust the arc length of the second reflecting portion 122 along the first direction according to actual conditions.

[0054] In one possible implementation of the embodiment of the present application, Figure 1 and Figure 2As shown, the high beam module 100 also includes a heat sink 140 , which includes a mounting surface and a reflective surface 141 disposed on the mounting surface. The mounting surface is used to mount the circuit board 110 , and the accompanying lighting light reflected by the second reflective portion 122 is reflected by the reflective surface 141 and then incident on the output lens 130 .

[0055] Those skilled in the art should know that the circuit board 110 generates heat when working. In order to prevent the circuit board 110 from being burned due to heat accumulation, a heat sink 140 is provided. The heat sink 140 is a frame-type heat sink 140. The circuit board 110, the reflective element 120 and the output lens 130 are all connected to the heat sink 140. Figure 1 and Figure 2 As shown. A reflective surface 141 is provided on the heat sink 140 to reflect the accompanying lighting light reflected by the second reflective portion 122. Since the second reflective portion 122 is connected to the end of the first reflective portion 121, the reflecting side of the second reflective portion 122 cannot face the exit lens 130, resulting in light loss. The provision of the reflective surface 141 will allow more accompanying lighting light to be emitted through the exit lens 130.

[0056] Optionally, the reflective surface 141 is an aluminum-plated reflective surface 141 .

[0057] The reflective surface 141 is an aluminum-plated reflective surface 141. The reflective surface 141 is prepared by aluminum plating, which is convenient for preparing the reflective surface 141. It only needs to be aluminum-plated on the mounting surface of the heat sink 140. In addition, the aluminum-plated material has a high reflection efficiency, which can improve the reflection efficiency of the reflective surface 141 and reduce light loss.

[0058] In one achievable manner of the embodiment of the present application, the first reflective portion 121 and the second reflective portion 122 are integrally formed.

[0059] The first reflective portion 121 and the second reflective portion 122 are integrally formed, which can improve the integrity of the reflective element 120 and improve the stability and firmness of the connection between the first reflective portion 121 and the second reflective portion 122 .

[0060] The embodiment of the present application also discloses a vehicle headlamp, comprising a low beam module and the above-mentioned high beam module 100, wherein the accompanying lighting light source 112 of the high beam module 100 emits accompanying lighting light when the low beam module forms a low beam light pattern, so that the high beam module 100 is lit when the high beam module 100 is not working. The vehicle headlamp includes the same structure and beneficial effects as the high beam module 100 in the above-mentioned embodiment. The structure and beneficial effects of the high beam module 100 have been described in detail in the above-mentioned embodiment, and will not be repeated here.

[0061] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high beam module, characterized in that: It comprises a circuit board, a reflective element and an output lens, wherein a plurality of high-beam light sources and at least one accompanying light source are arranged on the circuit board, the reflective element is arranged opposite to the circuit board and comprises a plurality of first reflective parts corresponding to the high-beam light sources one by one, and the light emitted by the high-beam light source is reflected by the corresponding first reflective parts and then emitted by the output lens to form a high-beam light pattern; The reflective element also includes a second reflective portion corresponding to the accompanying lighting light source. The accompanying lighting light emitted by the accompanying lighting light source is reflected by the corresponding second reflective portion and then emitted through the output lens, so as to light up the high beam module when the high beam module is not working.

2. The high beam module according to claim 1, characterized in that: The second reflecting parts include a plurality of second reflecting parts, and the plurality of second reflecting parts are connected to the first reflecting parts correspondingly.

3. The high beam module according to claim 2, characterized in that: The plurality of high-beam light sources are arranged in a transverse direction, the number of the accompanying lighting light source is one and is arranged in front of the plurality of high-beam light sources, and the accompanying lighting light source is provided with a plurality of the second reflecting parts correspondingly.

4. The high beam module according to claim 3, characterized in that: The plurality of first reflecting parts are connected in sequence along the horizontal direction, the second reflecting parts are connected one-to-one with the first reflecting parts located in the middle position, and the accompanying lighting light emitted by the accompanying lighting light source is projected onto the plurality of second reflecting parts and reflected to the output lens by the plurality of second reflecting parts.

5. The high beam module according to claim 2, characterized in that: The first reflecting portion is a parabolic reflecting surface, and the second reflecting portion is an ellipsoidal reflecting surface connected to an end of the parabolic reflecting surface.

6. The high beam module according to claim 2, characterized in that: The first reflecting portion and the second reflecting portion are connected along a first direction, and an arc length of the second reflecting portion along the first direction is between 10 mm and 20 mm.

7. The high beam module according to claim 1, characterized in that: It also includes a heat sink, which includes a mounting surface and a reflecting surface arranged on the mounting surface, the mounting surface is used to mount the circuit board, and the accompanying lighting light reflected by the second reflecting part is reflected by the reflecting surface and then incident on the output lens.

8. The high beam module according to claim 7, characterized in that: The reflecting surface is an aluminum-plated reflecting surface.

9. The high beam module according to claim 2, characterized in that: The first reflecting portion and the second reflecting portion are integrally formed.

10. An automobile headlamp, characterized in that: It comprises a low beam module and a high beam module as claimed in any one of claims 1 to 9, wherein the accompanying lighting light source of the high beam module emits accompanying lighting light when the low beam module forms a low beam light pattern, so as to light up the high beam module when the high beam module is not working.

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