CN107839591B - Light guide structure of automobile instrument three-dimensional scale ring - Google Patents
Light guide structure of automobile instrument three-dimensional scale ring Download PDFInfo
- Publication number
- CN107839591B CN107839591B CN201711005976.8A CN201711005976A CN107839591B CN 107839591 B CN107839591 B CN 107839591B CN 201711005976 A CN201711005976 A CN 201711005976A CN 107839591 B CN107839591 B CN 107839591B
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- Prior art keywords
- ring
- scale
- guide structure
- light guide
- light
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/10—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for dashboards
- B60Q3/14—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for dashboards lighting through the surface to be illuminated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/60—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects
- B60Q3/62—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides
Abstract
The invention discloses a light guide structure of a three-dimensional scale ring of an automobile instrument, which comprises a dial plate and the scale ring arranged on the dial plate; the scale ring comprises a lighttight ring body and a plurality of light-transmitting scale parts arranged on the ring body; the scale part comprises a scale body and a clamping part, and the clamping part is positioned below the ring body; the bottom of the scale body is arc-shaped; the bottom butt of block portion forms the light transmission region in the dial plate between the upper surface of the inner wall of block portion, the bottom of scale body and dial plate. The LED lamp holder is compact in structure and convenient to assemble, saves the assembling time of each component, and reduces the number of LED lamps. According to the invention, the curved surface light guide structure is adopted at the bottom of the integrated scale ring, so that the vertical incident light is effectively guided, the dark area after the dial is lightened is effectively eliminated, and the scale ring has a uniform display effect.
Description
Technical Field
The invention relates to the technical field of automobile manufacturing, in particular to a light guide structure of a three-dimensional scale ring of an automobile instrument.
Background
With the improvement of living standard and industrial technology, people put forward higher requirements on automobile interior parts, and automobile instruments as important components in automobiles are required to continuously meet requirements on aspects of beauty, functions and the like. In order to pursue personalized, attractive and good-readability display effects of the existing automobile instrument, a scale area of an automobile is gradually changed from a planar shape into a three-dimensional display effect.
In order to achieve the effect of three-dimensional scale, one method adopts direct printing and stretching of the dial plate, and the other method adopts the mode that a three-dimensional scale ring is arranged on the dial plate. Compared with direct printing and stretching of the dial plate, the three-dimensional effect of the scale ring is more obvious, and the modeling adaptability is stronger.
Due to the limitation of manufacturing and light guide space, the existing scale ring mostly adopts a split type design, and scales are independently lightened by utilizing the light guide ring, so that the workload of assembly of parts is increased, and the number of LED lamps is increased. Because the design that the whole molding in scale ring outward appearance is concave type mostly is used for collocation instrument scale digit, and the scale ring is generally placed at the edge in light zone, and planar design is adopted mostly to its bottom, like this, can lead to the light intensity on the scale ring to reduce gradually along radially outwards. Therefore, the plane bottom light guide structure of the existing scale ring cannot meet the requirement of the scale ring on the optical uniformity in the radial direction, and a dark line or a dark area can appear in the radial direction to influence the visual embodiment of a client.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a light guide structure of a three-dimensional scale ring of an automobile instrument.
The invention solves the technical problems through the following technical scheme:
a light guide structure of a three-dimensional scale ring of an automobile instrument comprises a dial plate and the scale ring arranged on the dial plate; the scale ring comprises a lighttight ring body and a plurality of light-transmitting scale parts arranged on the ring body; the scale part comprises a scale body and a clamping part, and the clamping part is positioned below the ring body; the bottom of the scale body is arc-shaped; the bottom butt of block portion forms the light transmission region in the dial plate between the upper surface of the inner wall of block portion, the bottom of scale body and dial plate.
Preferably, the ring body includes an annular portion and a recessed portion, and the recessed portion is disposed on an inner wall of the annular portion.
Preferably, the scale body is embedded in the recessed portion and protrudes out of the upper surface of the recessed portion, and the engaging portion is located below the recessed portion and abuts against between the annular portion and the recessed portion.
Preferably, the dial is made of a light-permeable material.
Preferably, a lamp box frame is arranged below the dial plate, and a light source is arranged in the lamp box frame.
Preferably, a printed circuit board is arranged below the lamp box frame, and the light source is arranged on the printed circuit board.
Preferably, the light source is an LED lamp.
Preferably, the ring body and the scale member are integrally formed.
The positive progress effects of the invention are as follows: the LED lamp holder is compact in structure and convenient to assemble, saves the assembling time of each component, and reduces the number of LED lamps. According to the invention, the curved surface light guide structure is adopted at the bottom of the integrated scale ring, so that the vertical incident light is effectively guided, the dark area after the dial is lightened is effectively eliminated, and the scale ring has a uniform display effect.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a calibration ring according to a preferred embodiment of the invention.
Fig. 3 is an enlarged view of a portion a of fig. 2.
Detailed Description
The present invention will be more clearly and completely described in the following description of preferred embodiments, taken in conjunction with the accompanying drawings.
As shown in fig. 1, fig. 2 and fig. 3, a light guide structure of a three-dimensional scale ring of an automobile instrument comprises a dial 10 and a scale ring 20 arranged on the dial; a lamp box frame 11 is arranged below the dial 10, and a light source 12 is arranged in the lamp box frame 11. A printed circuit board 13 is arranged below the lamp box frame 11, and the light source is arranged on the printed circuit board. The light source 12 is an LED lamp. The lamp box frame is used for supporting the dial plate and the scale ring.
The scale ring 20 includes a light-tight ring body 30 and a plurality of light-transmissive scale features 40 disposed on the ring body. The ring body 30 and the scale member 40 are integrally formed. The scale ring can be an indication scale ring of a speedometer and a tachometer of an automobile instrument. The scale ring is an integrated scale ring manufactured by injection molding of the black opaque part and the transparent part.
The dial plate is made of light-permeable material. The dial is made into a smoke gray semi-transparent area to ensure that light can reach the scale ring; at the same time, the scale is made invisible when not lit.
The scale member 40 includes a scale body 41 and an engaging portion 42, the engaging portion 42 being located below the ring body 30; the bottom 44 of the scale body 41 is arc-shaped.
The bottom of the engaging portion 42 abuts against the dial 10, and a light transmitting region 43 is formed between the inner wall of the engaging portion 42, the bottom of the scale body, and the upper surface of the dial.
The ring body 30 includes an annular portion 31 and a recessed portion 32, and the recessed portion 32 is provided on an inner wall of the annular portion 31.
The scale body 41 is embedded in the recess 32 and protrudes from the upper surface of the recess 32, and the engaging portion 42 is located below the recess 32 and abuts between the annular portion 31 and the recess 32.
After the light source LED lamp was lighted, light passed through the reflection of lamp house frame, sees through the dial plate, gets into the printing opacity region, and to inject the bottom 44 of scale body, light is through reflection and refraction back, jets out from the top 45 of scale body, like this, has eliminated the dark space after the dial plate is lighted effectively, makes the scale body present even display effect.
The scale ring is integrated, the backlight is lightened in a mode of sharing the LED backlight with the whole dial, and light is directly absorbed into the bottom of the scale ring from the lower part, so that the circumferential visual uniformity is ensured.
The LED lamp holder is compact in structure and convenient to assemble, saves the assembling time of each component, and reduces the number of LED lamps. According to the invention, the curved surface light guide structure is adopted at the bottom of the integrated scale ring, so that the vertical incident light is effectively guided, and the problem that the scale ring has dark lines or dark areas in the radial direction is effectively solved.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (8)
1. A light guide structure of a three-dimensional scale ring of an automobile instrument comprises a dial plate and the scale ring arranged on the dial plate; the scale ring comprises a lighttight ring body and a plurality of light-transmitting scale parts arranged on the ring body; the scale part comprises a scale body and a clamping part, and the clamping part is positioned below the ring body; it is characterized in that the bottom of the scale body is arc-shaped; the bottom butt of block portion forms the light transmission region in the dial plate between the upper surface of the inner wall of block portion, the bottom of scale body and dial plate.
2. The light guide structure of the stereoscopic graduated ring for motormeters of claim 1, wherein the ring body comprises an annular portion and a recessed portion, the recessed portion being provided on an inner wall of the annular portion.
3. The light guide structure of the stereoscopic graduated ring for automobile instruments according to claim 2, wherein the graduated body is embedded in the concave portion and protrudes from the upper surface of the concave portion, and the engaging portion is located below the concave portion and abuts between the annular portion and the concave portion.
4. The light guide structure of the stereoscopic graduated ring for automobile instruments as claimed in claim 1, wherein the dial plate is made of a light permeable material.
5. The light guide structure of the stereoscopic graduation ring for automobile instruments as claimed in claim 1, wherein a light box frame is provided under the dial plate, and a light source is provided in the light box frame.
6. The light guide structure of the stereoscopic scale ring for automobile instruments according to claim 5, wherein a printed circuit board is provided under the lamp box holder, and the light source is provided on the printed circuit board.
7. The light guide structure of the stereoscopic graduated ring for automobile instruments according to claim 6, wherein the light source is an LED lamp.
8. The light guide structure of the stereoscopic graduated ring for motormeters of claim 1, wherein the ring body and the graduated member are integrally formed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201711005976.8A CN107839591B (en) | 2017-10-25 | 2017-10-25 | Light guide structure of automobile instrument three-dimensional scale ring |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201711005976.8A CN107839591B (en) | 2017-10-25 | 2017-10-25 | Light guide structure of automobile instrument three-dimensional scale ring |
Publications (2)
Publication Number | Publication Date |
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CN107839591A CN107839591A (en) | 2018-03-27 |
CN107839591B true CN107839591B (en) | 2020-04-03 |
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CN201711005976.8A Active CN107839591B (en) | 2017-10-25 | 2017-10-25 | Light guide structure of automobile instrument three-dimensional scale ring |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010103398A1 (en) * | 2009-03-13 | 2010-09-16 | Minda Industries Limited | Illuminated handle bar switch with smd based construction |
CN202319931U (en) * | 2011-11-17 | 2012-07-11 | 埃泰克汽车电子(芜湖)有限公司 | Automobile instrument panel with three-dimensional illumination effect |
CN106515567A (en) * | 2016-11-02 | 2017-03-22 | 延锋伟世通电子科技(上海)有限公司 | Light guide structure for automobile meter dial plate |
-
2017
- 2017-10-25 CN CN201711005976.8A patent/CN107839591B/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010103398A1 (en) * | 2009-03-13 | 2010-09-16 | Minda Industries Limited | Illuminated handle bar switch with smd based construction |
CN202319931U (en) * | 2011-11-17 | 2012-07-11 | 埃泰克汽车电子(芜湖)有限公司 | Automobile instrument panel with three-dimensional illumination effect |
CN106515567A (en) * | 2016-11-02 | 2017-03-22 | 延锋伟世通电子科技(上海)有限公司 | Light guide structure for automobile meter dial plate |
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CN107839591A (en) | 2018-03-27 |
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