Vehicle lamp

Abstract

Provided is a vehicle lamp that makes it possible to improve work efficiency for obtaining desired light distribution characteristics while achieving space saving. A vehicle lamp (1) comprises: a substrate (21) having a first surface and a second surface; a light-emitting unit (22) mounted on the first surface; a light control unit (31) that controls light emitted from the light-emitting unit (22); a lens member (30) having a flange part (32) extending from the light control unit (31); and a fixing member (10) that fixes the substrate and the lens member. The flange part (32) has a first contact part that contacts the first surface, a fitting part that fits into the fixing member (10), and a coupling part that is coupled to the fixing member (10). The fixing member (10) has a positioning hole into which the fitting part fits, and a second contact part that contacts the second surface.

Description

Vehicle lamp

[0001] The present invention relates to a vehicle lamp.

[0002] As vehicle lamps, combination lamps incorporating various lamp functions such as headlamps, direction indicators, and clearance lamps are known. Further, the lamp functions incorporated in a combination lamp have different light irradiation directions and light distribution characteristics, and some of them irradiate light to the side of the vehicle. Also, in recent years, combination lamps have been increasing in size, and a plurality of lamp functions are arranged along a curved surface shape matching the design of a vehicle body.

[0003] In a vehicle lamp using an LED (Light Emitting Diode) as a light source, light from the LED is emitted perpendicularly to a substrate. Therefore, when arranging light sources along a curved surface in accordance with design requirements, a plurality of substrates are arranged stepwise perpendicularly to the light irradiation direction (see, for example, Patent Documents 1 to 3).

[0004] Japanese Patent Application Laid-Open No. 2015-167124, Japanese Patent Application Laid-Open No. 2015-201278, Japanese Patent Application Laid-Open No. 2016-194983

[0005] However, in conventional vehicle lamps, since a plurality of combinations of substrates and LEDs are arranged stepwise, it is difficult to achieve space saving. Further, in order to adjust the light distribution characteristic from LEDs using a lens or the like, accurate positioning is required so that the optical characteristics of the LEDs and the lens are at optimal positions, making it difficult to improve the efficiency of assembly work.

[0006] Accordingly, the present invention has been made in view of the above conventional problems, and an object of the present invention is to provide a vehicle lamp capable of improving work efficiency for obtaining desired light distribution characteristics while achieving space saving.

[0007] To solve the above problems, the vehicle lamp of the present invention comprises a substrate having a first surface and a second surface, a light-emitting unit mounted on the first surface, a light control unit that controls the light emitted from the light-emitting unit, a lens member having a flange portion extending from the light control unit, and a fixing member that fixes the substrate and the lens member, wherein the flange portion has a first contact portion that abuts against the first surface, a fitting portion that fits into the fixing member, and a coupling portion that is coupled to the fixing member, and the fixing member has a positioning hole into which the fitting portion fits and a second contact portion that abuts against the second surface.

[0008] In the vehicle lighting fixture of the present invention, the flange portion has a first contact portion that contacts the first surface of the substrate, a fitting portion that fits into a positioning hole in the fixing member, a coupling portion that is coupled to the fixing member, and a second contact portion of the fixing member that contacts the second surface of the substrate. This allows for space saving while improving work efficiency to obtain the desired light distribution characteristics.

[0009] In another aspect of the present invention, the coupling portion is an opening into which an insertion member is inserted, and the coupling portion is formed by the insertion of the insertion member into the fixing member.

[0010] In another aspect of the present invention, the flange portion has a plurality of contact protrusions protruding from the side surface, and the fixing member has a plurality of third contact portions that contact the contact protrusions.

[0011] In another aspect of the present invention, the fixing member clamps the flange portion with a plurality of third contact portions.

[0012] In another aspect of the present invention, the normal direction of the substrate is inclined with respect to the main irradiation direction of the light irradiated from the light control unit.

[0013] In another aspect of the present invention, the light output side of the light control unit is provided with a multi-stage step for refracting the light.

[0014] In another aspect of the present invention, the light control unit includes a refraction unit into which light is incident and which refracts a portion of the light, and a reflecting unit located outside the refraction unit which reflects the other portion of the light.

[0015] In another aspect of the present invention, the first virtual optical axis of the light refracted by the refraction portion and the second virtual optical axis of the light reflected by the reflection portion are inclined with respect to the normal direction of the substrate.

[0016] Furthermore, in one aspect of the present invention, there is an outer lens that controls the light irradiated from the light control unit.

[0017] The present invention provides a vehicle lighting device that can save space while improving work efficiency for obtaining desired light distribution characteristics.

[0018] This is an exploded perspective view showing an overview of the combination lamp 1 according to the first embodiment. This is a schematic cross-sectional view showing the vicinity of the luminaire unit 100 in the internal structure of the combination lamp 1. This is a schematic diagram showing the results of a light ray trajectory simulation showing the irradiation of light from the luminaire unit 100. This is a schematic perspective view showing an overview of the fixing member 10. This is a schematic perspective view showing an overview of the light source unit 20. (a) is a schematic perspective view showing an overview of the lens member 30, showing the light emission side, and (b) is a schematic perspective view showing an overview of the lens member 30, showing the light incidence side. This is a schematic front view showing the assembled state of the luminaire unit 100. This is a schematic cross-sectional view at position A-A' in Figure 7. This is a schematic cross-sectional view at position B-B' in Figure 7. This is a schematic cross-sectional view at position C-C' in Figure 7. This is a schematic cross-sectional view at position D-D' in Figure 7. This is a schematic cross-sectional view at position E-E' in Figure 7. This is a schematic cross-sectional view at position F-F' in Figure 7.

[0019] (First Embodiment) Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The same or equivalent components, members, and processes shown in each drawing will be denoted by the same reference numerals, and redundant explanations will be omitted as appropriate. Figure 1 is an exploded perspective view showing an overview of the combination lamp 1 according to this embodiment. The coordinate axes shown in Figure 1 are indicated by arrows for the X axis, Y axis, and Z axis, respectively. The X axis direction is the left-right direction of the vehicle, the Y axis direction is the front-rear direction of the vehicle, and the Z axis direction is the vertical up-down direction of the vehicle. As shown in Figure 1, the combination lamp 1 is a lighting fixture that accommodates multiple lamp functions and comprises a lighting fixture unit 100, an outer part 200, and a housing part 300. The combination lamp 1 corresponds to the vehicle lighting fixture in the present invention.

[0020] The lighting unit 100 is housed near the end of the combination lamp 1 in the X-axis direction and is a lighting fixture that emits light to the outside of the vehicle in the X-axis direction via the outer portion 200. The lighting unit 100 comprises a fixing member 10, a light source unit 20, a lens member 30, and an insertion member 40. The outer shape of the combination lamp 1 is curved, and the vehicle lighting fixture is positioned in this curved region, so it is inclined with respect to the X-axis and Y-axis directions. The lighting unit 100 of this embodiment shows a front side marker lamp incorporated into a headlight. It is also applicable to a rear side marker lamp incorporated into a rear lamp, and can be appropriately applied to lamps that perform other functions.

[0021] The fixing member 10 is a member to which the light source unit 20 and the lens member 30 are attached, and which holds them in a state that maintains their relative positional relationship. In addition, a part of the fixing member 10 is attached to the housing unit 300 (not shown) and is fixed in a predetermined position and orientation within the combination lamp 1. Details of the structure of the fixing member 10 and how the light source unit 20 and the lens member 30 are held will be described later.

[0022] The light source unit 20 comprises a substrate 21 and an LED 22, and is a part that emits light based on power and control signals supplied from an external source. The substrate 21 has a front surface (first surface) and a back surface (second surface), on which wiring patterns are formed and electronic components are mounted (not shown), and the LED 22 is mounted on the wiring pattern. The specific configuration of the LED 22 is not limited, and conventionally known semiconductor light-emitting elements can be used. One example is an LED that emits blue light, converts a portion of the blue light to yellow light using a phosphor material, and obtains white light by mixing the blue and yellow light. The LED 22 corresponds to the light-emitting part in the present invention.

[0023] The lens member 30 is positioned on the light-emitting side of the light source unit 20 and comprises a light control unit 31 and a flange portion 32, and is a member that controls the light emitted by the light source unit 20. The light control unit 31 is provided in the flange portion 32 at a position corresponding to the LED 22 and is the part that refracts and reflects the light incident from the LED 22 to control the direction of light propagation and light distribution. The flange portion 32 is a plate-shaped part provided around the light control unit 31 and holds the light control unit 31. It is preferable that the light control unit 31 and the flange portion 32 are formed integrally, but they may be constructed as separate parts. The detailed structure of the lens member 30 will be described later.

[0024] The insertion member 40 is inserted into fastening holes provided in the fixing member 10 and the lens member 30, and is a member for fastening the lens member 30 to the fixing member 10. Figure 1 shows an example in which one insertion member 40 is inserted in the lower center of the lens member 30, but the position and number of insertion members 40 are not limited. Also, although a screw is shown as the insertion member 40 in Figure 1, the structure is not limited and conventionally known structures can be used.

[0025] The outer portion 200 constitutes part of the vehicle's exterior shape and is positioned on the light-emitting side of the combination lamp 1, covering the luminaire unit 100, the housing portion 300, and other lamp functions. In the example shown in Figure 1, the outer portion 200 includes an outer lens 210 and an outer cover 220.

[0026] The outer lens 210 is an optical component that receives light emitted from the lamp unit 100, refracts or reflects the light, and projects it onto the outside of the vehicle as a desired light distribution. The outer lens 210 may have a colored area through which light is transmitted in order to emit the light emitted from the lamp unit 100 as a desired color. The outer cover 220 is an exterior covering that covers the outside of the outer lens 210 and is part of the vehicle's design. The area of ​​the outer cover 220 that transmits light from the lamp unit 100 is made of a light-transmitting material.

[0027] The housing portion 300 is a component that houses and holds the luminaire unit 100 and the outer portion 200, and contains the luminaire unit 100 and other lamp functions. The specific configuration of the housing portion 300 is not limited.

[0028] Figure 2 is a schematic cross-sectional view showing the vicinity of the luminaire unit 100 in the internal structure of the combination lamp 1. As shown in Figure 2, the luminaire unit 100 is assembled by housing the light source unit 20 within the fixing member 10 and fastening the lens member 30 to the fixing member 10 with an insertion member 40. As will be described later, the light source unit 20 is held between the fixing member 10 and the lens member 30. The luminaire unit 100 is also positioned and fixed within the housing portion 300 (not shown). The outer portion 200 is positioned to cover the luminaire unit 100 and is attached to close the opening of the housing portion 300 (not shown).

[0029] As shown in Figure 2, the optical control unit 31 of the lens member 30 is equipped with a refraction section 33 and a reflecting section 34 on the light incidence side, and a multi-stage step 35 on the light emission side. The refraction section 33 is provided on the side of the optical control unit 31 where light is incident and is the part that refracts a portion of the light emitted from the LED 22. The reflecting section 34 is located outside the refraction section 33 and is the part that reflects the other portion of the light emitted from the LED 22. The multi-stage step 35 is provided on the side of the optical control unit 31 where light is emitted and is the part that emits the light refracted by the refraction section 33 and the light reflected by the reflecting section 34. The multi-stage step 35 has a surface shape in which a plurality of fine planes are formed in multiple stages, and refracts the light that reaches the fine planes and irradiates it in the direction of the outer lens 210.

[0030] The outer lens 210 is provided with a light distribution adjustment section 230 at the position where light from the luminaire unit 100 reaches. The light distribution adjustment section 230 is a part that refracts the light that has arrived from the multi-stage step 35 to adjust its direction of travel. The specific configuration of the light distribution adjustment section 230 is not limited and may be a convex or concave lens composed of a curved surface, a scattering surface formed with multiple fine irregularities, or a Fresnel lens that achieves desired lens characteristics with multiple irregularities.

[0031] The dashed line in Figure 2 indicates the normal direction of the substrate 21 and coincides with the main irradiation direction of the light L1 emitted from the LED 22. As shown in Figure 2, the substrate 21 is positioned at an angle with respect to the X-axis and Y-axis directions. The arrow L2 in Figure 2 indicates the main irradiation direction of the light L2 emitted from the multi-stage step 35, which is the light emission surface of the light control unit 31. As shown in Figure 2, the normal direction of the substrate is inclined with respect to the main irradiation direction of the light L2 emitted from the light control unit 31. The arrow L3 in Figure 2 schematically shows the light distribution of the light emitted from the light distribution adjustment unit 230.

[0032] Figure 3 is a schematic diagram showing the results of a light ray trajectory simulation illustrating the irradiation of light from the lighting unit 100. The solid lines shown in the figure represent the trajectory of light L1 irradiated from the LED 22. As shown in Figure 3, the light L1 irradiated from the LED 22 has a light distribution with a predetermined spread angle centered on the main irradiation direction (normal direction of the substrate 21). The angle of light L1 close to the main irradiation direction is incident on the refraction section 33, refracted at the interface of the refraction section 33, and travels through the light control unit 31 as approximately parallel light. The angle of light L1 far from the main irradiation direction is reflected by the reflecting section 34 provided around the refraction section 33, and travels through the light control unit 31 as approximately parallel light. The virtual optical axis of the parallel light refracted by the refraction section 33 and the virtual optical axis of the parallel light reflected by the reflecting section are inclined with respect to the normal direction of the substrate 21.

[0033] The light refracted by the refraction section 33 and the light reflected by the reflecting section 34 reach the multi-stage step 35, where they are refracted by the fine planes constituting the multi-stage step 35 and travel towards the outer lens 210 as light L2. The light L2 that reaches the outer lens 210 is refracted, reflected, and scattered by the light distribution adjustment section 230 to adjust the light distribution as light L3, which then passes through the outer cover 220 and illuminates the outside of the vehicle.

[0034] Figure 4 is a schematic perspective view showing an overview of the fixing member 10. As shown in Figure 4, the fixing member 10 has a back surface 11, a side surface 12, a top surface 13, a bottom surface 14, a mounting portion 15, and a stepped portion 16. The back surface 11 is provided with contact portions 11a to 11c and a rib 11d. The stepped portion 16 is provided with a contact portion 11e, a fastening portion 11f, and a wall portion 18, and the fastening portion 11f is provided with a fastening hole 17. The top surface 13 is provided with a positioning hole 13a and a hole 13b for the substrate.

[0035] The rear surface 11 is located on the housing portion 300 side of the fixing member 10 and is the part that supports each component of the fixing member 10. The side surface 12 is the part that rises from the lateral end of the rear surface 11. The top surface 13 is the part that rises from the top of the rear surface 11. The bottom surface 14 is the part that rises from the bottom of the rear surface 11. As shown in Figure 4, the rear surface 11, side surface 12, top surface 13 and bottom surface 14 constitute the housing portion of the fixing member 10, and an opening is formed in the direction of light emission. As will be described later, the light source portion 20 and the lens member 30 are housed and fixed inside the opening of the fixing member 10.

[0036] The contact portions 11a to 11c are projections provided on the back surface 11, and their tips are provided to a position where they contact the back surface (second surface) of the substrate 21. The contact portions 11a to 11c correspond to the second contact portion in the present invention. In the example shown in Figure 4, the contact portions 11a and 11b are shown as being provided in two separate locations on the left and right sides along the stepped portion 16, but the number and position are not limited. In addition, although the contact portion 11c is shown between the rib 11d and the side surface 12, multiple contact portions 11c are also provided along the inside of the top surface 13 in a position hidden by the top surface 13. In the example shown in Figure 4, the contact portions 11a to 11c are provided along the side surface 12, top surface 13, and stepped portion 16, but they may also be provided in positions separated from these surfaces.

[0037] The rib 11d is a projection erected from the back surface 11, and its tip extends to a position further from the back surface 11 than the contact portions 11a to 11c. The shape of the rib 11d is not limited, but as will be described later, the rib 11d is inserted into a hole 24 provided in the substrate 21 and is a member for positioning the substrate 21, so it is preferable that its cross-sectional shape is the same as the planar shape of the hole 24. In the example shown in Figure 4, the rib 11d is frustoconical in shape.

[0038] The contact portion 11e is a projection provided on the stepped portion 16, and its tip is provided to a position where it contacts the side surface of the flange portion 32. In the example shown in Figure 4, one contact portion 11e is provided along the bottom surface 14 from the stepped portion 16, but the number and position of the contact portions 11e are not limited.

[0039] The fastening portion 11f is a cylindrical part erected from the back surface 11 in the direction of the opening of the fixing member 10, and a fastening hole 17 is formed in its center. In Figure 4, the fastening portion 11f is shown as cylindrical in shape and is shown as being located in the center in the lateral direction of the stepped portion 16, but the specific shape and position are not limited. The fastening portion 11f may also be provided at a position separate from the stepped portion 16.

[0040] The positioning hole 13a is a hole formed in the upper surface 13, and is provided at a position and in a shape corresponding to the fitting portion 39 of the flange portion 32 described later. Although the present embodiment shows an example where the positioning hole 13a is provided on the upper surface 13, the position where the positioning hole 13a is provided is not limited, and the positioning hole 13a may be provided on the side surface 12, the bottom surface 14, or the stepped portion 16.

[0041] The substrate hole 13b is a hole formed in the upper surface 13, and is provided at a position and in a shape corresponding to the substrate projection 25 of the substrate 21 described later. Although the present embodiment shows an example where the substrate hole 13b is provided on the upper surface 13, the position where the substrate hole 13b is provided is not limited, and the substrate hole 13b may be provided on the side surface 12, the bottom surface 14, or the stepped portion 16.

[0042] The attachment portion 15 extends from the back surface 11 toward the housing portion 300, and is a portion for attaching the fixing member 10 to the housing portion 300. The specific structure and position of the attachment portion 15 are not limited; a holding portion may be provided at a corresponding position and in a corresponding shape of the housing portion 300, and the attachment portion 15 may be fitted into the holding portion. Further, a plurality of attachment portions 15 may be provided.

[0043] The stepped portion 16 is a step provided along the corner portions of the back surface 11 and the bottom surface 14. Providing the stepped portion 16 can improve the mechanical strength of the fixing member 10. Although the present embodiment shows an example where the stepped portion 16 is provided, the stepped portion 16 may be omitted as long as the mechanical strength can be ensured.

[0044] The fastening hole 17 is provided in the fastening portion 11f, and is a hole into which the insertion member 40 is inserted and fastened. The fastening hole 17 is provided with a structure for fastening the insertion member 40. When a screw or a bolt is used as the insertion member 40, a thread groove corresponding to the insertion member 40 is provided on the inner circumference of the fastening hole 17.

[0045] The wall portion 18 is a portion provided opposite to the side surface 12. In the example shown in FIG. 4, the wall portion 18 is provided only at the corner portions of the bottom surface 14 and the stepped portion 16, but the wall portion 18 may be provided at a position and in a size opposite to the entire side surface 12.

[0046] Fig. 5 is a schematic perspective view showing an outline of the light source unit 20. As shown in Fig. 5, the light source unit 20 includes a substrate 21, an LED 22, an electronic component 23, a hole 24, a substrate projection 25, and a through hole 26. The substrate 21 is a plate-shaped member on which each member of the light source unit 20 is mounted, and wiring patterns (not shown) are formed on the front surface (first surface) and the back surface (second surface). The LED 22 is a light-emitting element mounted on the wiring pattern, which emits predetermined light according to power supplied from the outside and a control signal. The electronic component 23 is a component mounted on the wiring pattern and implements a predetermined function. On the substrate 21, the wiring pattern, the LED 22 and the electronic component 23 form a circuit.

[0047] The hole 24 is an opening provided at a predetermined position of the substrate 21 penetrating from the front surface to the back surface. The hole 24 corresponds to the position and cross-sectional shape of the rib 11d, and the rib 11d is inserted into the hole 24 as described later. The substrate projection 25 is a projection provided at a predetermined position of the substrate 21. The substrate projection 25 corresponds to the position and shape of the substrate hole 13b, and the substrate projection 25 is inserted into the substrate hole 13b as described later. The through hole 26 penetrates from the front surface side to the back surface side of the substrate 21, and is a through hole that electrically connects the wiring patterns on the front surface side and the back surface side.

[0048] Fig. 6 is a schematic perspective view showing an outline of the lens member 30, wherein Fig. 6(a) shows the light exit side, and Fig. 6(b) shows the light incident side. As shown in Figs. 6(a) and 6(b), the lens member 30 includes a light control portion 31, a flange portion 32, a refraction portion 33, a reflection portion 34, a multi-stage step 35, contact portions 36a, 36b, 36d, a projection portion 36c, contact convex portions 37a to 37c, a coupling portion 38, and a fitting portion 39.

[0049] The light control unit 31 is located in the flange portion 32 at a position corresponding to the LED 22 and controls the direction of light propagation and light distribution by refracting and reflecting the light incident from the LED 22. The flange portion 32 is a plate-shaped portion that extends from the periphery of the light control unit 31 and holds the light control unit 31. The refraction portion 33 is located on the side of the light control unit 31 where light is incident and refracts a portion of the light emitted from the LED 22. The reflecting portion 34 is located outside the refraction portion 33 and reflects the other portion of the light emitted from the LED 22. The specific shapes of the refraction portion 33 and the reflecting portion 34 are not limited, but known lenses known as Total Internal Reflection (TIR) ​​lenses can be used. The multi-stage step 35 is located on the side of the light control unit 31 where light is emitted and emits the light refracted by the refraction portion 33 and the light reflected by the reflecting portion 34. The multi-stage step 35 has a surface shape in which multiple fine planes are formed in multiple stages, and the light that reaches the fine planes is refracted and irradiated in the direction of the outer lens 210.

[0050] The contact portions 36a, 36b, and 36d are parts that protrude from the flange portion 32 toward the rear surface 11. The tips of the contact portions 36a, 36b, and 36d extend to a position where they contact the surface (first surface) of the substrate 21. The position and number of contact portions 36a, 36b, and 36d are not limited, but Figure 6 shows an example where the contact portion 36a is located at the upper end of the flange portion 32, and the contact portions 36b and 36d are located at the left and right ends of the flange portion 32. By having the contact portions 36a, 36b, and 36d contact the surface of the substrate 21 at positions that form the vertices of a triangle, the substrate 21 can be supported in a planar manner. The contact portions 36a, 36b, and 36d correspond to the first contact portion in the present invention.

[0051] The projection 36c is a protruding portion provided on the flange portion 32 in a plane position, projecting toward the back surface 11. By providing the projection 36c, mechanical strength can be ensured in the flange portion 32, and deformation can be suppressed. The shape and position of the projection 36c are not limited, but in order to suppress deformation of the flange portion 32, it is preferable to have a long plate-like rib shape along the direction in which deformation is suppressed.

[0052] The contact protrusions 37a to 37c are portions that protrude from the side surface of the flange portion 32. The contact protrusions 37a and 37b are located opposite the side surface 12, and the contact protrusion 37c is located opposite the wall portion 18. Figure 6 shows an example where the tips of the contact protrusions 37a to 37c are flat, but the shape is not limited and may be curved or hemispherical.

[0053] The connecting portion 38 is provided at a position corresponding to the fastening hole 17 in the flange portion 32 and is the part that is connected to the fixing member 10. Figure 6 shows an example of an opening into which the insertion member 40 is inserted as the connecting portion 38. When the insertion member 40 is inserted into the connecting portion 38 and fastened to the fastening hole 17, the lens member 30 is connected to the fixing member 10.

[0054] The fitting portion 39 is formed in a position and shape corresponding to the positioning hole 13a and is provided protruding from the flange portion 32 toward the upper surface 13. In this embodiment, an example is shown in which the fitting portion 39 protrudes toward the upper surface 13, but if the positioning hole 13a is provided on the side surface 12, bottom surface 14, or stepped portion 16, the fitting portion 39 may also protrude toward the side surface 12, bottom surface 14, or stepped portion 16 corresponding to the positioning hole 13a.

[0055] Figure 7 is a schematic front view showing the assembled luminaire unit 100. In Figure 7, the arrows A-A', B-B', C-C', D-D', E-E', and F-F' indicate the cross-sectional positions in the cross-sectional views shown in Figures 8 to 13, respectively. As shown in Figure 7, the luminaire unit 100 has a lens member 30 connected to a fixing member 10 by an insertion member 40, and the light source unit 20 and the lens member 30 are housed within the fixing member 10. The light source unit 20 is sandwiched between the back surface 11 and the flange portion 32 of the fixing member 10.

[0056] Furthermore, as shown in Figure 7, the contact protrusions 37a and 37b are in contact with the side surface 12, and the contact protrusion 37c is in contact with the wall portion 18. Here, the portion of the side surface 12 that is in contact with the contact protrusions 37a and 37b, and the portion of the wall portion 18 that is in contact with the contact protrusion 37c, correspond to the third contact portion in the present invention. The width of the side surface 12 and the wall portion 18 of the fixing member 10 is slightly smaller than the width of the contact protrusions 37a, 37b and the contact protrusion 37c, and the side surface of the flange portion 32 is clamped by the elastic deformation of the side surface 12 and the wall portion 18. Because the flange portion 32 is clamped by the side surface 12 and the wall portion 18, the movement of the flange portion 32 in the width direction of the fixing member 10 is restricted, and the alignment of the fastening hole 17 and the connecting portion 38 is made easier.

[0057] Furthermore, as shown in Figure 7, the tip of the contact portion 11e abuts against the side surface of the flange portion 32, restricting the downward movement of the lens member 30 within the fixing member 10. As will be described later, the fitting portion 39 of the lens member 30 is fitted into the positioning hole 13a. Therefore, the lens member 30 can be accurately positioned by the insertion member 40 inserted into the coupling portion 38, the fitting portion 39 fitted into the positioning hole 13a, and the contact portion 11e.

[0058] Figure 8 is a schematic cross-sectional view at position A-A' in Figure 7. Position A-A' is a longitudinal section at the position of the contact portion 36a provided on the flange portion 32. A contact portion 11c is also provided on the back surface 11 at position A-A'. The housing portion 300 is located on the back side of the back surface 11, with a part of the housing portion 300 supporting the back surface 11, and the mounting portion 15 is attached to the housing portion 300. At position A-A', as shown in Figure 8, the contact portion 36a abuts against the surface of the substrate 21, and the contact portion 11c abuts against the back surface of the substrate 21. As a result, the substrate 21 is held between the contact portion 36a and the contact portion 11c.

[0059] Figure 9 is a schematic cross-sectional view at position B-B' in Figure 7. Position B-B' is a cross-section at the positions of the contact portions 36b and 36d provided on the flange portion 32. A contact portion 11a is also provided on the back surface 11 at position B-B'. At position B-B', as shown in Figure 9, the contact portions 36b and 36d abut against the surface of the substrate 21, and the contact portion 11a abuts against the back surface of the substrate 21. As a result, the substrate 21 is held between the contact portions 36d and 11a. Although not shown, the contact portion 11b abuts against the back surface of the substrate 21 at a slightly different position than the contact portion 36b. As a result, the substrate 21 is also held between the contact portions 36b and 11b.

[0060] Figure 10 is a schematic cross-sectional view at position C-C' in Figure 7. Position C-C' is a cross-section at the position of the contact projection 37b provided on the flange portion 32. At position C-C', as shown in Figure 10, the contact projection 37b is in contact with the inner surface of the side surface 12 at the third contact portion. Although not shown, the contact projection 37a is also in contact with the inner surface of the side surface 12 at the third contact portion. Also at position C-C', the tip of the fastening portion 11f is in contact with the back surface of the substrate 21. Furthermore, at position C-C', a surface parallel to the bottom surface 14 of the stepped portion 16 extends from the back surface 11 toward the flange portion 32.

[0061] Figure 11 is a schematic cross-sectional view at position D-D' in Figure 7. Position D-D' is a cross-section at the position of the contact projection 37c provided on the flange portion 32. At position D-D', as shown in Figure 11, the contact projection 37c is in contact with the inner surface of the wall portion 18 at the third contact portion. Also at position D-D', the insertion member 40 is inserted into the fastening hole 17 of the fastening portion 11f and fastened. Also at position D-D', the contact portions 16a and 16b protrude from the stepped portion 16, and the contact portions 16a and 16b may be in contact with the back surface of the substrate 21.

[0062] Figure 12 is a schematic cross-sectional view at position E-E' in Figure 7. Position E-E' is a longitudinal cross-section at the position of the substrate projection 25 provided on the substrate 21. At position E-E', as shown in Figure 12, the substrate projection 25 is inserted into the substrate hole 13b of the upper surface 13. By inserting the substrate projection 25 into the substrate hole 13b, the position of the substrate 21 in the width direction and depth direction can be easily aligned inside the fixing member 10. Also at position E-E', the insertion member 40 is inserted into the fastening hole 17 of the fastening portion 11f and fastened.

[0063] Figure 13 is a schematic cross-sectional view at position F-F' in Figure 7. Position F-F' is a longitudinal cross-section at the position of the fitting portion 39 provided on the flange portion 32. At position F-F', as shown in Figure 13, the fitting portion 39 is inserted into the positioning hole 13a of the upper surface 13, and a part of the fitting portion 39 is in contact with the surface of the substrate 21. Also at position F-F', the contact portion 11c provided on the back surface 11 is in contact with the back surface of the substrate 21. As a result, the substrate 21 is held between the contact portion 11c and the fitting portion 39. In addition, a part of the housing portion 300 is inserted below the stepped portion 16, and the locking portion provided on the housing portion 300 is locked into the opening of the stepped portion 16. By inserting and fitting the fitting portion 39 into the positioning hole 13a, the position of the lens member 30 in the width direction and depth direction can be easily aligned inside the fixing member 10.

[0064] Furthermore, since the contact portions 11a to 11c, 16a, and 16b are in contact with the back surface of the substrate 21, the distance between the substrate 21 and the back surface 11 can be easily and accurately positioned. Also, since the contact portions 36a, 36b, and 36d are in contact with the surface of the substrate 21, the distance between the substrate 21 and the lens member 30 can be easily and accurately aligned. As a result, the light source unit 20 and the lens member 30 are accurately positioned relative to each other in the depth direction within the fixed member 10, and the distance between the LED 22 and the light control unit 31 can be accurately set.

[0065] Furthermore, by inserting the rib 11d into the hole 24 and the substrate projection 25 into the substrate hole 13b, the position of the substrate 21 in the vertical, horizontal, and vertical directions within the fixing member 10 can be easily and accurately determined. In addition, by having the contact projections 37a to 37c abut against the third contact portion of the side surface 12 and the wall portion 18, and having the fitting portion 39 fit into the positioning hole 13a, the position of the lens member 30 in the vertical, horizontal, and vertical directions within the fixing member 10 can be easily and accurately determined. As a result, the light source unit 20 and the lens member 30 can be accurately positioned relative to each other in the vertical, horizontal, and vertical directions within the fixing member 10, and the positional relationship between the LED 22 and the light control unit 31 can be accurately set.

[0066] As described above, in the combination lamp 1 of this embodiment, the flange portion 32 has contact portions 36a, 36b, and 36d that contact the surface (first surface) of the substrate 21, the fitting portion 39 fits into the positioning hole 13a of the fixing member 10, the coupling portion 38 is coupled to the fixing member 10, and the contact portions 11a to 11c of the fixing member 10 contact the back surface (second surface) of the substrate 21. Thus, space can be saved while improving work efficiency to obtain the desired light distribution characteristics.

[0067] The present invention is not limited to the embodiments described above, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present invention.

[0068] This international application claims priority based on Japanese Patent Application No. 2025-039820, filed on 12 March 2025, and the entire contents of said Japanese Patent Application No. 2025-039820 are incorporated herein by reference.

[0069] The above description of specific embodiments of the present invention is provided for illustrative purposes only. It is not intended to be exhaustive or to limit the invention to the forms described. Numerous modifications and changes are possible in light of the above description, as will be obvious to those skilled in the art.

[0070] 1...Combination lamp 100...Luminaire unit 200...Outer part 210...Outer lens 220...Outer cover 230...Light distribution adjustment part 300...Housing part 10...Fixing member 11...Back surface 11a-11c, 11e, 16a, 16b, 36a, 36b, 36d...Contact part 11d...Rib 11f...Fastening part 12...Side surface 13...Top surface 13a...Positioning hole 13b...Hole for substrate 14...Bottom surface 15...Mounting part 16...Stepped part 17...Fastening hole 18...Wall part 20...Light source part 21...Substrate 22...LED 23...Electronic component 24...Hole 25...Substrate projection 26...Through hole 30...Lens member 31...Light control part 32...Flange part 33...Refracting part 34...Reflecting part 35...Multi-stage step 36c...Protrusion 37a-37c...Contact protrusion 38...Connecting part 39...Fitting part 40...Insertion member

Claims

1. A vehicle light fixture comprising: a substrate having a first surface and a second surface; a light-emitting unit mounted on the first surface; a light control unit for controlling light emitted from the light-emitting unit; a lens member having a flange portion extending from the light control unit; and a fixing member for fixing the substrate and the lens member, wherein the flange portion has a first contact portion that abuts against the first surface, a fitting portion that fits into the fixing member, and a coupling portion that is coupled to the fixing member; and the fixing member has a positioning hole into which the fitting portion fits and a second contact portion that abuts against the second surface.

2. A vehicle light fixture according to claim 1, wherein the coupling portion is an opening into which an insertion member is inserted, and the coupling portion is coupled to the fixing member by the insertion of the insertion member into the fixing member.

3. A vehicle light fixture according to claim 1, wherein the flange portion has a plurality of contact protrusions protruding from the side surface, and the fixing member has a plurality of third contact portions that contact the contact protrusions.

4. A vehicle light fixture according to claim 3, wherein the fixing member is characterized in that it clamps the flange portion with a plurality of third contact portions.

5. A vehicle lamp according to claim 1, characterized in that the normal direction of the substrate is inclined with respect to the main irradiation direction of the light emitted from the light control unit.

6. A vehicle light fixture according to claim 5, characterized in that the light output side of the light control unit is provided with a multi-stage step for refracting the light.

7. A vehicle lamp according to claim 1, wherein the light control unit comprises a refracting portion into which light is incident and refracts a portion of the light, and a reflective portion disposed outside the refracting portion and reflecting another portion of the light.

8. A vehicle lamp according to claim 7, characterized in that the first virtual optical axis of the light refracted by the refraction portion and the second virtual optical axis of the light reflected by the reflecting portion are inclined with respect to the direction normal to the substrate.

9. A vehicle lamp according to any one of claims 1 to 8, characterized in that it has an outer lens that controls the light emitted from the light control unit.

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