Light guide component, optical module and vehicle lamp

Abstract

The utility model discloses a light guide component, an optical module and a vehicle lamp, a reference direction perpendicular to a main light emitting direction of the light guide component is taken as a preset direction, and the light guide component comprises a main body and a shielding body; the main body comprises a matching part and an exposed part which are connected with each other in the main light emitting direction of the light guide component; the shielding body surrounds the side wall of the matching part in the preset direction. By setting the color of the shielding body, the visual effect of the main body in a static state can be changed, and the personalized customization requirement of a user on the color of the light guide component is met; the shielding body is arranged on the peripheral side of the matching part, and the shielding body cannot influence propagation of light in the main body; in addition, the shielding body can also play a role in shielding light, the light entering the main body is only conducted in the matching part and cannot be scattered from the peripheral side of the matching part to the non-target direction, and improvement of the lighting effect of the light guide component is facilitated. And the exposed part can meet the personalized modeling design of the light guide component, so that the overall attractiveness of the light guide component is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle lighting, in particular to a light guide component, an optical module and a vehicle lamp. BACKGROUND

[0002] With the popularity of vehicles, people's pursuit of car personalization is increasingly strong, and the field of vehicle lamps has gradually emerged. The color of the thick wall material of the traditional lamp is PC white, which is a good optical grade light transmission material with high light transmission rate. However, when customers have color customization needs, it is difficult to achieve. Usually, the way to change the color of the material is to add color masterbatch, spray paint or paste color film in colorless materials, which will cause loss of light intensity. When the same light-emitting surface is used, the color scheme will require more light intensity than the colorless scheme.

[0003] Therefore, it is necessary to improve the prior art. CONTENT OF THE UTILITY MODEL

[0004] The present application aims to at least solve one of the technical problems existing in the prior art, and provides a light guide component, an optical module and a vehicle lamp.

[0005] According to an aspect of the present application, the present application provides a light guide component, taking a reference direction perpendicular to the main light-emitting direction of the light guide component as a preset direction, the light guide component comprising a main body and a shielding body; the main body comprises a fitting part and an outer leakage part connected to each other in the main light-emitting direction of the light guide component; the shielding body is arranged around the side wall of the fitting part in the preset direction.

[0006] In one embodiment, the fitting part and the outer leakage part are arranged in sequence along the main light-emitting direction of the light guide component; the shielding body comprises a light shielding part and a connecting part connected in sequence in the main light-emitting direction of the light guide component, and the connecting part is connected to the fitting part; in the main light-emitting direction of the light guide component, the length of the shielding body is greater than the maximum length of the fitting part, so that the light-emitting surface of the main body is accommodated in the space surrounded by the light shielding part.

[0007] In one embodiment, the main body has at least two light-emitting surfaces, adjacent light-emitting surfaces are arranged at an angle, and each light-emitting surface is connected in sequence to form a total light-emitting surface; the end of the connecting part away from the light shielding part has an end surface corresponding to each light-emitting surface, the end surface and the corresponding light-emitting surface are parallel or approximately parallel, and the distance between the end surface and the corresponding light-emitting surface is greater than 0.

[0008] In one embodiment, the size of the outer leakage part in the main light-emitting direction of the light guide component is L, which satisfies: 10mm≤L≤30mm.

[0009] In one embodiment, the area of the side wall of the outer leakage portion in the preset direction is S1, and the area of the side wall of the matching portion in the preset direction is S2, and the following is satisfied: 1 / 8≤S1 / S2≤3 / 5.

[0010] In one embodiment, the size of the part of the shielding body that is attached to the main body in the main light-out direction of the light guide component is h, and the following is satisfied: 50mm≤h≤80mm.

[0011] In one embodiment, the thickness of the shielding body is d, and the following is satisfied: 2mm≤d≤4mm.

[0012] According to another aspect of the present application, an optical module is provided, comprising the light guide component of any one of the preceding embodiments; the matching portion and the outer leakage portion are arranged in sequence along the main light-out direction of the light guide component; a reference plane λ that is perpendicular to the main light-out direction of the light guide component is used to cross-section the main body; the cross-sectional area of the outer leakage portion is smaller than the cross-sectional area of the matching portion, so as to form a stepped surface at the connection between the outer leakage portion and the matching portion; the optical module further comprises a bracket, the bracket is provided with a mounting hole, and the outer leakage portion is inserted into the mounting hole; the orthogonal projection of the mounting hole on the plane where the stepped surface is located is located within the orthogonal projection of the shielding body on the plane where the stepped surface is located.

[0013] In one embodiment, the distance between the part of the outer leakage portion that is opposite to the hole wall of the mounting hole and the hole wall of the mounting hole is w, and the following is satisfied: 0.5mm≤w≤1mm.

[0014] According to another aspect of the present application, a vehicle lamp is provided, comprising the optical module of any one of the preceding embodiments; the vehicle lamp further comprises a housing, a light distribution lens arranged on the housing, and a printed circuit board accommodated in the housing.

[0015] The beneficial effects of the present application are as follows: the color of the shielding body can change the visual effect of the main body in a static state, which is conducive to the customization needs of users for the color personalization of the light guide component; the shielding body is arranged on the circumferential side of the matching portion, and the shielding body does not affect the propagation of light in the matching portion, so that the optical effects such as light intensity and light color are not affected after the vehicle lamp is turned on; the shielding body can also play a role in light shielding, the light entering the main body is only conducted in the interior of the shielding body, and cannot be scattered from the circumferential side of the shielding body to non-target directions, which is conducive to the improvement of the lighting effect of the light guide component; and the outer leakage portion can meet the individualized modeling design of the light guide component, and improve the overall aesthetics of the light guide component. BRIEF DESCRIPTION OF DRAWINGS

[0016] The technical solutions and other beneficial effects of the present application will become apparent through the following detailed description of the specific embodiments of the present application, combined with the accompanying drawings.

[0017] Figure 1is a schematic view of a light guide component provided by an embodiment of the present application.

[0018] Figure 2 is a sectional view of a light guide component provided by an embodiment of the present application.

[0019] Figure 3 is Figure 2 is an enlarged view of A in FIG.

[0020] Figure 4 is a sectional view of another light guide component provided by an embodiment of the present application.

[0021] Figure 5 is a schematic view of a vehicle lamp provided by an embodiment of the present application.

[0022] in the figure:

[0023] 10, light guide component; 11, main body; 111, outer leakage portion; 1111, light exit surface; 112, matching portion; 1121, light entrance surface; 113, stepped surface; 12, shielding body; 121, connecting portion; 1211, end surface; 122, light shielding portion;

[0024] 20, bracket; 21, mounting hole;

[0025] 30, housing;

[0026] 40, light distribution mirror;

[0027] 50, printed circuit board. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0029] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", and "linking" should be understood in a broad sense, for example, can be fixed connection, or detachable connection, or integrally connected; can be mechanical connection, or electrical connection or can communicate with each other; can be directly connected, or indirectly connected through an intermediate medium, or the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] The light guide component, optical module and vehicle lamp in the present application will be described in detail below with reference to the drawings and specific embodiments.

[0031] In existing technologies, the visual color of light guide components can be changed by adding color masterbatch, spraying colored paint, or attaching colored films, but this will result in a loss of light intensity.

[0032] To address the aforementioned technical problems, this application provides a light guide component with a reference direction perpendicular to the main light emission direction of the light guide component as a preset direction. The light guide component includes a main body and a shielding body. The main body includes a mating portion and an exposed portion connected to each other in the main light emission direction of the light guide component. The shielding body surrounds the sidewall of the mating portion in the preset direction. This will be described in detail below.

[0033] See Figure 1 and Figure 2 In one embodiment, the light guide component 10 includes a main body 11 and a shield 12, positioned perpendicular to the main light emission direction of the light guide component 10 (e.g., ...). Figure 2 and Figure 4 The reference direction (as shown in the X direction, the same below) is a preset direction (any direction perpendicular to the X direction). The main body 11 includes a mating part 112 and an externally exposed part 111 that are connected to each other in the main light output direction of the light guide component 10. The shielding body 12 surrounds the side wall of the mating part 112 in the preset direction.

[0034] In this embodiment, the shield 12 is disposed on the side wall of the mating part 112 in a preset direction. By setting the color of the shield 12, the visual effect of the main body 11 (light guide component 10) in a static state (unlit state, the same below) can be changed, which is conducive to the user's personalized customization needs for the color of the light guide component 10. For example, if the shield 12 is black, the main body 11 will appear black in a static state. At the same time, the shield 12 is disposed on the periphery of the mating part 112 (side wall in a preset direction, the same below). The shield 12 will not affect the propagation of light inside the main body 11. After the headlight is lit, it will not affect the optical effects such as light intensity and light color.

[0035] Meanwhile, the shield 12 is set on the periphery of the mating part 112, which can play a role in blocking light. The light entering the main body 11 is only conducted inside the mating part 112 and will not be scattered from the periphery of the mating part 112 to non-target directions (directions other than the light-emitting surface), which is beneficial to improving the lighting effect of the light guide component 10.

[0036] It should be noted that the main body 11 can be made of transparent or semi-transparent material. The light passing through the main body 11 will be more uniform and softer, improving the lighting effect of the headlights. The light guide component 10 can be formed by injection molding or other processing methods, not limited to these.

[0037] In this embodiment, a shielding body 12 is provided on the periphery of the mating part 112. That is, the shielding body 12 does not completely cover the periphery of the main body 11, leaving an exposed part (the periphery of the exposed part 111). This arrangement does not require completely covering the periphery of the main body 11 to achieve a visual change in the color of the main body 11. At the same time, it reduces the material used for the shielding body 12 and lowers the production cost.

[0038] When the entire periphery of the main body 11 is covered by the shield 12, installing the light guide component 10 in the headlight will affect the aesthetics of the headlight. However, in this embodiment, by setting the shield 12 only in the mating part 112, the exposed part 111 maintains its original shape. The shield 12 can be covered in the headlight by means of a decorative ring or the like, which is beneficial to the overall aesthetics of the headlight.

[0039] It should be noted that in this embodiment, the light-emitting surface 1111 is provided in the externally exposed portion 111, and the light-incident surface 1121 is provided in the mating portion 112. The externally exposed portion 111 is the part not covered by the shielding body 12, and the mating portion 112 is the part covered by the shielding body 12. In some embodiments, the main body 11 may be exposed on the side near the light-incident surface 1121, or the shielding body 12 may be provided in the middle part of the side wall of the main body 11, and the main body 11 may be exposed on both sides in the main light-emitting direction of the light guide component 10. It is not limited to this and can be determined according to the actual use requirements of the vehicle lamp.

[0040] See Figure 4 In one embodiment, the mating part 112 and the externally exposed part 111 are arranged sequentially along the main light-emitting direction of the light guide component 10; the shielding body 12 includes a light-shielding part 122 and a connecting part 121 connected sequentially in the main light-emitting direction of the light guide component 10, the connecting part 121 is connected to the mating part 112, and the light-shielding part 122 is disposed at the end of the connecting part 121 near the light-incident side of the main body 11; in the main light-emitting direction of the light guide component 10, the length of the shielding body 12 is greater than the maximum length of the mating part 112, so that the light-incident surface 1121 of the main body 11 is accommodated in the space enclosed by the light-shielding part 122.

[0041] In this embodiment, the shielding body 12 is tilted downwards ( Figure 4 The viewpoint extends to form an accommodating space that surrounds the light-incident surface 1121 of the main body 11. In actual use, the light emitted from the light source onto the light-incident surface 1121 is blocked by the light-shielding part 122 to avoid light leakage, which helps to improve the lighting effect of the headlight.

[0042] In actual products, the light source is generally an LED bead set on the printed circuit board 50. The light-shielding part 122 can contact the surface of the printed circuit board 50 to surround the LED bead and prevent light leakage.

[0043] See Figure 1The main body 11 has at least two light exit surfaces 1111, and adjacent light exit surfaces 1111 are arranged at an angle, and each light exit surface 1111 is sequentially connected to form a total light exit surface; the end portion of the connecting portion 121 away from the light shielding portion 122 has an end surface 1211 corresponding to each light exit surface 1111, the end surface 1211 and the corresponding light exit surface 1111 are parallel or approximately parallel, and the spacing between the end surface 1211 and the corresponding light exit surface 1111 is greater than 0.

[0044] In this embodiment, there are multiple light exit surfaces 1111, and adjacent light exit surfaces 1111 are arranged at an angle, that is, the light emitted by each light exit surface 1111 is directed in different directions, which can increase the illumination range of the light guide component 10, and the angle between the light exit surfaces 1111 can be designed according to the needs of modeling design, realizing the diversity of modeling; in addition, the end portion of the connecting portion 121 away from the light shielding portion 122 has an end surface 1211 corresponding to each light exit surface 1111, that is, the shape formed by each end surface 1211 is similar to the shape of the total light exit surface, when the shielding body 12 is shielded by the trim ring, the consistency of the outer leakage portion 111 can be ensured, and the appearance of the vehicle lamp is effectively improved.

[0045] As shown in Figure 1 In some embodiments, the end portion of the connecting portion 121 away from the light shielding portion 122 is formed by three end surfaces 1211, the included angle between the left end surface 1211 and the middle end surface 1211 is a first included angle, the included angle between the left light exit surface 1111 and the middle light exit surface 1111 is a second included angle, and the angle of the first included angle and the second included angle is substantially equal (there can be a few degrees of deviation, and in this embodiment, it is 3°, that is, the end surface 1211 and the corresponding light exit surface 1111 are approximately parallel), and the corresponding relationship between the remaining light exit surfaces 1111 and the remaining end surfaces 1211 is similar, which will not be described here.

[0046] It should be noted that the end surface 1211 and the corresponding light exit surface 1111 are approximately parallel, that is, the end surface 1211 intersects the corresponding light exit surface 1111, and the included angle therebetween is α, which is in the range of 0°<α≤15°, and the positional relationship between the end surface 1211 and the corresponding light exit surface 1111 can be considered as approximately parallel.

[0047] In an embodiment, the size of the outer leakage portion 111 in the main light exit direction of the light guide component 10 is L, which satisfies: 10mm≤L≤30mm, for example, 10mm, 20mm, 30mm, etc.

[0048] When the value of L is less than 10mm, the area of the shielding body 12 is too large, although the color required by the main body 11 in vision can meet the design requirements, the shielding body 12 uses too much material, causing waste of materials and increasing production costs, and the larger the range of the shielding body 12 shielding the main body 11, the smaller the part of the main body 11 exposed, which is not conducive to the overall appearance of the car lamp; when the value of L is greater than 30mm, the covering area of the shielding body 12 on the main body 11 is small, which is not conducive to the visual effect of the main body 11 (light guide component 10) in static state, and the color of the main body 11 in vision cannot achieve the expected effect, which cannot meet the customer's demand for color.

[0049] In an embodiment, the area of the side wall of the outer leakage part 111 in the preset direction is S1, and the area of the side wall of the matching part 112 in the preset direction is S2, which satisfies: 1 / 8≤S1 / S2≤3 / 5, such as 1 / 8, 1 / 4, 2 / 5, 3 / 5, etc.

[0050] When the value of S1 / S2 is less than 1 / 8, S1 becomes smaller or S2 becomes larger, the area of the shielding body 12 is too large, although the color required by the main body 11 in vision can meet the design requirements, the shielding body 12 uses too much material, causing waste of materials and increasing production costs, and the larger the range of the shielding body 12 shielding the main body 11, the smaller the part of the main body 11 exposed, which is not conducive to the overall appearance of the car lamp; when the value of S1 / S2 is greater than 3 / 5, S1 becomes larger or S2 becomes smaller, the covering area of the shielding body 12 on the main body 11 is small, which is not conducive to the visual effect of the main body 11 (light guide component 10) in static state, and the color of the main body 11 in vision cannot achieve the expected effect, which cannot meet the customer's demand for color.

[0051] In an embodiment, the size of the part of the shielding body 12 adhering to the main body 11 in the main light out direction of the light guide component 10 is h, which satisfies: 50mm≤h≤80mm, such as 50mm, 60mm, 70mm, 80mm, etc.

[0052] When the value of h is less than 50mm, the covering area of the shielding body 12 on the main body 11 is small, which is not conducive to the visual effect of the main body 11 (light guide component 10) in static state, and the color of the main body 11 in vision cannot achieve the expected effect, which cannot meet the customer's demand for color; when the value of h is greater than 80mm, the area of the shielding body 12 is too large, although the color required by the main body 11 in vision can meet the design requirements, the shielding body 12 uses too much material, causing waste of materials and increasing production costs, and the larger the range of the shielding body 12 shielding the main body 11, the smaller the part of the main body 11 exposed, which is not conducive to the overall appearance of the car lamp.

[0053] It should be noted that in some embodiments, the values outside the range can also be used, which are determined according to the actual size of the main body 11 and the actual color required by the main body 11 in vision, and are not limited thereto.

[0054] In some embodiments, the shielding body 12 is black, and the value of h is less than 50mm, at which the main body 11 cannot visually present black and presents gray; therefore, when the main body 11 needs to visually present gray, the shielding body 12 can be set to gray, or the shielding body 12 is set to black while ensuring that the value of h of the shielding body 12 is less than 50mm, without being limited thereto.

[0055] In an embodiment, the thickness of the shielding body 12 is d, which satisfies 2mm≤d≤4mm, for example, 2mm, 3mm, 4mm, etc.

[0056] When the value of d is less than 2mm, the thickness of the shielding body 12 is too thin, which is not conducive to the final molding effect when molded by injection molding, and the shielding body 12 is prone to rupture and other phenomena, affecting the visual color of the main body 11, and when the thickness of the shielding body 12 is too thin, the visual color of the main body 11 cannot reach the expected set color, and color difference is prone to occur; when the value of d is greater than 4mm, the thickness of the shielding body 12 is too large, causing waste of materials and increasing production costs, and the too large thickness occupies the space inside the car lamp, affecting the arrangement of the remaining parts inside the car lamp.

[0057] It should be noted that when the light guide component 10 is injection molded, the glue space (for feeding the mold during injection molding), draft angle, glue sealing surface size, etc. should also be considered, which will not be described here.

[0058] Referring to Figures 1-3 , on the other hand, the application also relates to an optical module, which comprises any of the foregoing light guide components 10, a matching part 112, and an outer leakage part 111 arranged in sequence along the main light-out direction of the light guide component 10; a reference plane λ perpendicular to the main light-out direction of the light guide component 10 is taken as a cross section to cross the main body 11; the cross-sectional area of the outer leakage part 111 is less than that of the matching part 112, so as to form a stepped surface 113 at the connection between the outer leakage part 111 and the matching part 112; the optical module further comprises a bracket 20, which is provided with a mounting hole 21, and the outer leakage part 111 is inserted into the mounting hole 21; the orthographic projection of the mounting hole 21 on the plane where the stepped surface 113 is located is located within the orthographic projection of the shielding body 12 on the plane where the stepped surface 113 is located.

[0059] In the embodiment, a stepped surface (i.e., the stepped surface 113) is formed between the outer leakage portion 111 and the matching portion 112, facilitating the injection molding of the shielding body 12 during injection molding processing. At the same time, the orthographic projection of the mounting hole 21 on the plane where the stepped surface 113 is located is located within the orthographic projection of the shielding body 12 on the plane where the stepped surface 113 is located, that is, the bracket 20 completely shields the shielding body 12. In the actual installation process, there is an installation gap between the mounting hole 21 and the outer leakage portion 111, and only the stepped surface 113 (i.e., the main body 11 is made of transparent material) can be seen through the installation gap, thereby improving the static quality of the vehicle lamp.

[0060] In an embodiment, the distance between the portion of the outer leakage portion 111 opposite to the hole wall of the mounting hole 21 and the hole wall of the mounting hole 21 is w, and satisfies: 0.5mm≤w≤1mm, for example, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, etc.

[0061] When the value of w is less than 0.5mm, the distance between the mounting hole 21 and the outer leakage portion 111 is too small, and the installation allowance is too small, which is not conducive to the smooth installation. When the value of w is greater than 1mm, the distance between the mounting hole 21 and the outer leakage portion 111 is too large, and the visual effect is poor, which is not conducive to the improvement of the quality of the vehicle lamp.

[0062] On the other hand, referring to Figure 5 The application also relates to a vehicle lamp, which comprises any of the optical modules described above, and further comprises a housing 30, a light distribution lens 40 arranged on the housing 30, and a printed circuit board 50 accommodated in the housing 30.

[0063] By using the technical scheme provided in the embodiments of the application, the visual effect of the main body 11 in the static state can be changed by setting the color of the shielding body 12, which is conducive to the color personalization customization demand of the user for the light guide component 10. The shielding body 12 is arranged on the circumferential side of the matching portion 112, and the shielding body 12 does not affect the propagation of light in the inside of the matching portion 112. After the vehicle lamp is lighted, the shielding body 12 does not affect the optical effects such as light intensity and light color. The shielding body 12 can also play a role in light shielding. The light entering the main body 11 is only conducted in the inside of the matching portion 112 and cannot be scattered from the circumferential side of the matching portion 112 to the non-target direction, which is conducive to the improvement of the lighting effect of the light guide component 10. In addition, the outer leakage portion 111 can meet the personalized modeling design of the light guide component 10, and improve the overall appearance of the light guide component 10.

[0064] In the various embodiments of the application, the terms or descriptions of different embodiments are consistent and can be mutually referenced if there is no special description and logical conflict. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship. In the application, “at least one” means one or more, and “multiple” means two or more.

[0065] It can be understood that various numerical numbers involved in the embodiments of the present application are only distinguished for convenience of description, and are not used to limit the scope of the embodiments of the present application. The size of the serial number of each process does not mean the order of execution, and the execution order of each process should be determined according to its function and inherent logic.

[0066] The light guide component, the optical module and the vehicle lamp provided by the embodiments of the present application are described in detail above, and the principles and implementation manners of the present application are described by applying specific examples. The above description of the embodiments is only used to help understand the present application and its core idea; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manner and application range will be changed, and the above description should not be understood as a limitation on the present application.

Claims

1. A light guide member, characterized by, The light guide component comprises: a main body comprising a fitting portion and an outer leakage portion connected to each other in the main light emission direction of the light guide component; and a shielding body surrounding the side wall of the fitting portion in the preset direction.

2. The light guide component of claim 1, wherein: the fitting portion and the outer leakage portion are arranged in sequence in the main light emission direction of the light guide component; the shielding body comprises a light shielding portion and a connecting portion connected in sequence in the main light emission direction of the light guide component, and the connecting portion is connected to the fitting portion; in the main light emission direction of the light guide component, the length of the shielding body is greater than the maximum length of the fitting portion, so that the light entrance surface of the main body is accommodated in the space surrounded by the light shielding portion.

3. The light guide component of claim 2, wherein: the main body has at least two light emission surfaces, and adjacent light emission surfaces are arranged at an angle, and each light emission surface is connected in sequence to form a total light emission surface; the end portion of the connecting portion away from the light shielding portion has an end surface corresponding to each light emission surface, and the end surface and the corresponding light emission surface are parallel or approximately parallel, and the distance between the end surface and the corresponding light emission surface is greater than 0.

4. The light guide component of claim 1, wherein: the size of the outer leakage portion in the main light emission direction of the light guide component is L, and satisfies: 10mm≤L≤30mm.

5. The light guide component of claim 1, wherein: the area of the side wall of the outer leakage portion in the preset direction is S1, and the area of the side wall of the fitting portion in the preset direction is S2, and satisfies: 1 / 8≤S1 / S2≤3 / 5.

6. The light guide component of claim 1, wherein: the size of the part where the shielding body is attached to the main body in the main light emission direction of the light guide component is h, and satisfies: 50mm≤h≤80mm.

7. The light guide component of claim 1, wherein: the thickness of the shielding body is d, and satisfies: 2mm≤d≤4mm.

8. An optical module characterized by comprising: The light guide component comprises: the fitting portion and the outer leakage portion are arranged in sequence in the main light emission direction of the light guide component; a reference plane λ perpendicular to the main light emission direction of the light guide component is used as a cross section to cross the main body; the cross-sectional area of the outer leakage portion is smaller than the cross-sectional area of the fitting portion, so as to form a stepped surface at the connection between the outer leakage portion and the fitting portion; the optical module further comprises a bracket provided with a mounting hole, and the outer leakage portion is inserted into the mounting hole; the orthogonal projection of the mounting hole on the plane where the stepped surface is located is located within the orthogonal projection of the shielding body on the plane where the stepped surface is located.

9. The optical module of claim 8, wherein:

10. A vehicle lamp characterized by comprising: the distance between the part of the outer leakage portion opposite to the hole wall of the mounting hole and the hole wall of the mounting hole is w, and satisfies: 0.5mm≤w≤1mm. The optical module comprises: the fitting portion and the outer leakage portion are arranged in sequence in the main light emission direction of the light guide component; the vehicle lamp further comprises a housing, a light distribution lens arranged on the housing, and a printed circuit board accommodated in the housing.

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