Thick-wall part structure for enlarging light emitting width of car lamp
By designing a trapezoidal thick-walled component and a multiple total reflection structure for the reflective unit in the vehicle headlight, the cost problem caused by adding LEDs in the existing technology has been solved, achieving a wider light output width and better lighting effect, and reducing the cost of vehicle headlights.
Patent Information
- Application Number
- CN202423166119.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-12-20
AI Technical Summary
In the prior art, in order to improve the lighting effect of car lights, the use of LEDs and the complexity of circuits are increased, which leads to increased manpower and material costs, and thus increases the price of the car.
A thick-walled component structure is designed to increase the light output width of a vehicle headlight. By setting a trapezoidal thick-walled component and a reflective unit, multiple total reflections of light are achieved to increase the light output width. The structure includes first and second thick-walled components, a light guide surface, a reflective surface, and an optical surface. After multiple total reflections in the reflective unit, the light is emitted from the light outlet.
Without increasing the light source, the light-emitting area of the headlights was increased, the lighting effect was improved, the headlight cost was reduced, the design was simplified, and labor costs were reduced.
Smart Images
Figure CN223460296U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of car light, specifically relates to a thick wall piece structure of enlarging car light light emitting width. BACKGROUND
[0002] The car light thick wall piece is a conventional optical scheme, its thickness is relatively big, is generally above 2mm, is a new type of car lamp technology, in this technology, the light source is placed in the reflection cup, then is refracted to the outer surface through the special mirror, thereby produces stronger light and better light beam.
[0003] With the pursuit of car light lighting effect of consumer is higher and higher, the automobile manufacturer increases the use of LED in order to improve the light emitting area, and the cost of automobile increases with the increase of LED raw material, and with the increase of LED, the car light circuit design also becomes more complex, improves the labor cost, finally causes the increase of automobile selling price. INVENTION CONTENTS
[0004] The utility model discloses a thick wall piece structure of enlarging car light light emitting width to solve the technical problem of increasing labor and material cost for improving car light lighting effect, achieve multiple total reflection light to increase light emitting width to avoid the purpose of higher cost.
[0005] In order to solve the above technical problem, the utility model provides a thick wall piece structure of enlarging car light light emitting width, including:
[0006] The first thick wall piece is trapezoidal, and the first thick wall piece is provided with a first light guide surface and a second light guide surface at two ends respectively;
[0007] The second thick wall piece is provided with a first optical surface and a second optical surface at two sides respectively, and one end of the second thick wall piece is connected with the top side wall of the first thick wall piece;
[0008] The second thick wall piece is provided with a reflection unit, and the reflection unit is provided with a first reflection surface and a second reflection surface at two sides respectively, the first reflection surface and the second reflection surface are oppositely arranged, and one end of the reflection unit is provided with a third reflection surface;
[0009] The first reflection surface, the second reflection surface, the first optical surface and the second optical surface are all perpendicular to the horizontal plane, and are all inclined to the horizontal direction and the vertical direction, and the third reflection surface is inclined to the horizontal direction and the vertical direction;
[0010] Part of light is sequentially totally reflected from the second thick wall piece after the first reflection surface and the first optical surface, and the second thick wall piece is provided with a reflection unit, and the reflection unit is provided with a first reflection surface and a second reflection surface at two sides respectively, the first reflection surface and the second reflection surface are oppositely arranged, and one end of the reflection unit is provided with a third reflection surface;
[0011] Part of the light rays are sequentially totally reflected by the second reflecting surface and the second optical surface and then emitted from the second thick-walled piece;
[0012] Part of the light rays are sequentially totally reflected by the first light guide surface, the second light guide surface and the third reflecting surface and then emitted from the second thick-walled piece.
[0013] Further, the first reflecting surface and the first optical surface are arranged in parallel, and the included angle between the first reflecting surface and the horizontal direction and the included angle between the first optical surface and the horizontal direction are both 40°-50°.
[0014] The projection length of the first reflecting surface and the first optical surface in the horizontal direction is A.
[0015] Further, the second reflecting surface and the second optical surface are arranged in parallel, and the included angle between the second reflecting surface and the horizontal direction and the included angle between the second optical surface and the horizontal direction are both 40°-50°.
[0016] The projection length of the second reflecting surface and the second optical surface in the horizontal direction is B.
[0017] Further, the included angle between the first light guide surface and the vertical direction and the included angle between the second light guide surface and the vertical direction are both 40°-50°, and the included angle between the first light guide surface and the second light guide surface is 80°-90°.
[0018] Further, the third reflecting surface and the second light guide surface are arranged in parallel, and the projection length of the third reflecting surface and the second light guide surface in the horizontal direction is C.
[0019] Further, the top end of the first thick-walled piece is provided with a light collector, and the maximum projection length of the light collector in the horizontal direction is L.
[0020] Wherein, L / 2=A=B, and L=C.
[0021] Further, the second thick-walled piece is provided with a light outlet at the end away from the first thick-walled piece, and the top end of the third reflecting surface extends in the direction close to the light outlet.
[0022] Further, the first thick-walled piece and the second thick-walled piece are both provided with a plurality of pieces, and the second thick-walled pieces are connected by the adjacent first light guide surfaces and the second light guide surfaces.
[0023] The utility model discloses a beneficial effect is: through setting up reflection unit, a part of light is shot out after total reflection of third reflection surface, and another part of light is shot out from the both sides of third reflection surface respectively through first reflection surface (second reflection surface), and the light width of the present scheme is increased, thereby the light area is increased under the fixed light source, and the car lamp lighting effect is improved, and then the car lamp cost is reduced, and the scheme does not need complicated design, and the manpower cost is reduced.
[0024] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are specifically described, and the accompanying drawings are shown as follows. BRIEF DESCRIPTION OF DRAWINGS
[0025] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawings needed in the specific embodiment or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.
[0026] Figure 1 It is the light path schematic view of the thick wall piece structure of the utility model for expanding the light width of car lamp;
[0027] Figure 2 It is the structure schematic view of the thick wall piece structure of the utility model for expanding the light width of car lamp;
[0028] Figure 3 It is Figure 2 rear view of
[0029] Figure 4 It is Figure 3 top view of
[0030] In the drawing,
[0031] 1, first thick wall piece;11, first light guide surface;12, second light guide surface;2, second thick wall piece;21, first optical surface;22, second optical surface;23, light outlet;3, reflection unit;31, first reflection surface;32, second reflection surface;33, third reflection surface;4, light collector. DETAILED DESCRIPTION
[0032] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.
[0033] Example:
[0034] like Figures 1 to 4 As shown, a thick-walled component structure for expanding the light output width of a headlight comprises: a first thick-walled component 1 and a second thick-walled component 2, the first thick-walled component 1 being trapezoidal in shape, and a first light-guiding surface 11 and a second light-guiding surface 12 being respectively provided at both ends of the first thick-walled component 1; one end of the second thick-walled component 2 is connected to the top side wall of the first thick-walled component 1, and a first optical surface 21 and a second optical surface 22 are respectively provided on both sides of the second thick-walled component 2.
[0035] Among them, a reflecting unit 3 is provided on the second thick-walled part 2, and a first reflecting surface 31 and a second reflecting surface 32 are respectively provided on both sides of the reflecting unit 3, the first reflecting surface 31 and the second reflecting surface 32 are arranged opposite to each other, the first reflecting surface 31 and the second reflecting surface 32 are connected, and the first reflecting surface 31 and the second reflecting surface 32 are arranged at one end of the second thick-walled part 2 close to the first thick-walled part 1; a third reflecting surface 33 is provided at one end of the reflecting unit 3; the first reflecting surface 31, the second reflecting surface 32, the first optical surface 21 and the second optical surface 22 are all perpendicular to the horizontal plane, and are all inclined to the horizontal direction and the vertical direction; the third reflecting surface 33 is inclined relative to the horizontal direction and the vertical direction.
[0036] like Figure 3 As shown, the first reflecting surface 31 is arranged parallel to the first optical surface 21, and the angles between the first reflecting surface 31 and the first optical surface 21 and the horizontal direction are both 45°; the projection lengths of the first reflecting surface 31 and the first optical surface 21 in the horizontal direction are both A; the second reflecting surface 32 is arranged parallel to the second optical surface 22, and the angles between the third reflecting surface 33 and the second optical surface 22 and the horizontal direction are both 45°; the projection lengths of the second reflecting surface 32 and the second optical surface 22 in the horizontal direction are both B.
[0037] In the embodiment, the included angle between the first light guide surface 11 and the vertical direction is 45°, the included angle between the first light guide surface 11 and the second light guide surface 12 is 85°; the third reflecting surface 33 is arranged in parallel with the second light guide surface 12, and the projection length of the third reflecting surface 33 and the second light guide surface 12 in the horizontal direction is C; the top end of the first thick-walled part 1 is provided with the light collector 4, and the maximum projection length of the light collector 4 in the horizontal direction is L, wherein L / 2=A=B, L=C; the light emitting surface width of the vehicle lamp in the prior art is L, and the light emitting width of the first optical surface 21 and the second optical surface 22 is increased on the basis of the prior art, so that the light emitting width of the present application is A+B+C=2L, the light emitting width of the vehicle lamp is increased by two times, the lighting effect of the vehicle lamp is improved, and the projection length of the first optical surface 21 and the second optical surface 22 in the horizontal direction can be adjusted to change the light emitting width of the vehicle lamp.
[0038] In the embodiment, the second thick-walled part 2 is provided with a light outlet 23 at the end away from the first thick-walled part 1, and the top end of the third reflecting surface 33 extends in the direction close to the light outlet 23, and the incident light is emitted from the light outlet 23 after multiple reflections of the reflecting unit 3; the first thick-walled part 1 and the second thick-walled part 2 are both provided with a plurality of first light guide surfaces 11 and second light guide surfaces 12, and the plurality of second thick-walled parts 2 are connected through the adjacent first light guide surfaces 11 and second light guide surfaces 12, and the adjacent second thick-walled parts 2 form a gap.
[0039] In the embodiment, the incident light is divided into three parts of light when entering the first thick-walled part 1 from the light collector 4, part of the light is sequentially fully reflected by the first reflecting surface 31 and the first optical surface 21 and then emitted from the second thick-walled part 2; part of the light is sequentially fully reflected by the second reflecting surface 32 and the second optical surface 22 and then emitted from the second thick-walled part 2; and part of the light is sequentially fully reflected by the first light guide surface 11, the second light guide surface 12 and the third reflecting surface 33 and then emitted from the second thick-walled part 2, thereby increasing the light emitting width of the light source.
[0040] In the embodiment, the incident light is divided into three parts of light when entering the first thick-walled part 1 from the light collector 4, part of the light is sequentially fully reflected by the first reflecting surface 31 and the first optical surface 21 and then emitted from the second thick-walled part 2; part of the light is sequentially fully reflected by the second reflecting surface 32 and the second optical surface 22 and then emitted from the second thick-walled part 2; and part of the light is sequentially fully reflected by the first light guide surface 11, the second light guide surface 12 and the third reflecting surface 33 and then emitted from the second thick-walled part 2, thereby increasing the light emitting width of the light source.
[0041] In the embodiment, the incident light is divided into three parts of light when entering the first thick-walled part 1 from the light collector 4, part of the light is sequentially fully reflected by the first reflecting surface 31 and the first optical surface 21 and then emitted from the second thick-walled part 2; part of the light is sequentially fully reflected by the second reflecting surface 32 and the second optical surface 22 and then emitted from the second thick-walled part 2; and part of the light is sequentially fully reflected by the first light guide surface 11, the second light guide surface 12 and the third reflecting surface 33 and then emitted from the second thick-walled part 2, thereby increasing the light emitting width of the light source.
[0042] In the description of the embodiments of the utility model, unless another definite provision and limitation, the term "mount", "link", "connect" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication.For the ordinary skilled in the art, the above-mentioned terms can be understood in the specific meaning in the utility model according to the specific circumstances.
[0043] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and is not indicative or suggestive of the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicative or suggestive of relative importance.
[0044] Based on the above ideal embodiments of the utility model, through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of the utility model.The technical scope of the utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of claims.
Claims
1. A thick-walled member structure for expanding the light emission width of a vehicle lamp, characterized by, The utility model relates to a light guide device, which comprises: a first thick-walled piece (1) in the shape of a trapezoid, the first thick-walled piece (1) being provided with a first light guide surface (11) and a second light guide surface (12) at two ends thereof respectively; a second thick-walled piece (2) connected to a top side wall of the first thick-walled piece (1) at one end thereof, the second thick-walled piece (2) being provided with a first optical surface (21) and a second optical surface (22) at two sides thereof respectively; a reflection unit (3) provided on the second thick-walled piece (2), the reflection unit (3) being provided with a first reflection surface (31) and a second reflection surface (32) at two sides thereof respectively, the first reflection surface (31) being oppositely arranged to the second reflection surface (32), and the reflection unit (3) being provided with a third reflection surface (33) at one end thereof; the first reflection surface (31), the second reflection surface (32), the first optical surface (21) and the second optical surface (22) are all perpendicular to a horizontal plane and are all arranged to be inclined to a horizontal direction and a vertical direction; and the third reflection surface (33) is arranged to be inclined to the horizontal direction and the vertical direction; part of light rays are sequentially totally reflected by the first reflection surface (31) and the first optical surface (21) and then emitted from the second thick-walled piece (2); part of light rays are sequentially totally reflected by the second reflection surface (32) and the second optical surface (22) and then emitted from the second thick-walled piece (2); part of light rays are sequentially totally reflected by the first light guide surface (11), the second light guide surface (12) and the third reflection surface (33) and then emitted from the second thick-walled piece (2).
2. A thick-walled structure for enlarging the light emitting width of a vehicle lamp according to claim 1, wherein the first reflection surface (31) is arranged to be parallel to the first optical surface (21), and the first reflection surface (31) and the first optical surface (21) are both arranged to be inclined to the horizontal direction by an angle of 40°-50°; the first reflection surface (31) and the first optical surface (21) are both arranged to have a projection length of A in the horizontal direction.
3. A thick-walled structure for widening the light emitting width of a vehicle lamp according to claim 2, wherein the second reflection surface (32) is arranged to be parallel to the second optical surface (22), and the second reflection surface (32) and the second optical surface (22) are both arranged to be inclined to the horizontal direction by an angle of 40°-50°; the second reflection surface (32) and the second optical surface (22) are both arranged to have a projection length of B in the horizontal direction.
4. The thick-walled structure for expanding the light emitting width of a vehicle lamp according to claim 1, wherein the first light guide surface (11) and the second light guide surface (12) are both arranged to be inclined to the vertical direction by an angle of 40°-50°, and the first light guide surface (11) and the second light guide surface (12) are arranged to be inclined to each other by an angle of 80°-90°.
5. The thick-walled structure for expanding the light emitting width of a vehicle lamp according to claim 3, wherein the third reflection surface (33) is arranged to be parallel to the second light guide surface (12), and the third reflection surface (33) and the second light guide surface (12) are both arranged to have a projection length of C in the horizontal direction.
6. A thick-walled structure for widening the light emitting width of a vehicle lamp according to claim 5, wherein the first thick-walled piece (1) is provided with a light collector (4) at a top end thereof, and the light collector (4) has a maximum projection length of L in the horizontal direction; wherein L / 2=A=B, and L=C.
7. A thick-walled structure for widening the light emitting width of a vehicle lamp according to claim 1, wherein The second thick-wall piece (2) is provided with a light outlet (23) at one end away from the first thick-wall piece (1), and the top end of the third reflecting surface (33) extends in a direction close to the light outlet (23).
8. A thick-walled structure for widening the light emitting width of a vehicle lamp according to claim 1, wherein The first thick-wall piece (1) and the second thick-wall piece (2) are both provided with a plurality of pieces, and the plurality of second thick-wall pieces (2) are connected through the adjacent first light guide surface (11) and the second light guide surface (12).