CN114093254A - Backlight reflector structure of instrument - Google Patents
Backlight reflector structure of instrument Download PDFInfo
- Publication number
- CN114093254A CN114093254A CN202111223664.0A CN202111223664A CN114093254A CN 114093254 A CN114093254 A CN 114093254A CN 202111223664 A CN202111223664 A CN 202111223664A CN 114093254 A CN114093254 A CN 114093254A
- Authority
- CN
- China
- Prior art keywords
- plastic panel
- backlight reflector
- instrument
- lampshade
- reflector structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 claims 2
- 238000002955 isolation Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 5
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V3/00—Globes; Bowls; Cover glasses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/10—Construction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention relates to the technical field of instrument reflectors, in particular to an instrument backlight reflector structure which comprises a cover plate, a plastic panel and a PCBA (printed circuit board assembly) which are arranged from top to bottom; a cavity for accommodating a display screen is formed on the plastic panel; a character display area is formed on the cover plate; an LED lamp is arranged on the PCBA; a lampshade is formed on the plastic panel, the LED lamp is supported at the bottom of the lampshade, and the opening faces the character display area. The invention aims to provide an instrument backlight reflector structure, and the technical scheme provided by the invention solves the technical problems of high cost, poor light isolation effect and uneven light existing in the existing white backlight reflector.
Description
Technical Field
The invention relates to the technical field of instrument reflectors, in particular to an instrument backlight reflector structure.
Technical Field
The traditional instrument is used for being made of white materials for being made of backlight reflectors, and along with the fact that the existing plane combination instruments are more and more extensive, if the traditional design scheme is adopted, the number of parts is increased, the material cost is high, and the product lacks competitiveness.
As shown in fig. 1, the white backlight reflector 3 and the black plastic panel 4 can be made as one part, but since the backlight reflector is made of white material, the backlight reflector 3 and the black plastic panel 4 are different in color and are split into two parts, which increases unnecessary cost; and white backlight reflector 3 and black plastic panel 4 are fixed through buckle fixed heating fusion welding fixed, beat screw fixation or glue bonding fixed, lead to the scheme cost higher, do not have the competitive advantage.
When a white material is used as a backlight reflector, the wall thickness is limited due to light isolation, and the minimum wall thickness is usually 1.6mm, so that crosstalk occurs if the wall thickness is thinner, and an effective light isolation effect cannot be achieved.
The lamp hole structure shapes of the past backlight reflectors are not uniform, and circular holes, rectangular holes, irregular holes and the like exist, so that the uniformity and the brightness of the lamp light are relatively poor.
Disclosure of Invention
The invention aims to provide an instrument backlight reflector structure, and the technical scheme provided by the invention solves the technical problems of high cost, poor light isolation effect and uneven light existing in the existing white backlight reflector.
In order to solve the technical problem, the invention provides an instrument backlight reflector structure, which comprises a cover plate, a plastic panel and a PCBA (printed circuit board assembly) which are arranged from top to bottom; a cavity for accommodating a display screen is formed on the plastic panel; a character display area is formed on the cover plate; an LED lamp is arranged on the PCBA; a lampshade is formed on the plastic panel, the LED lamp is supported at the bottom of the lampshade, and the opening faces the character display area.
Preferably, the axial section line of the lampshade is a parabola.
Preferably, the LED lamp is located at a focus of the parabola.
Preferably, the plastic panel is a black plastic part.
From the above, the application of the technical scheme provided by the invention has the following beneficial effects: the backlight reflector and the plastic panel are combined into a part, and the plastic panel forms a light isolation structure of the backlight reflector, so that the backlight reflector can be omitted, and the cost can be greatly saved; in addition, the black light isolation effect is far better than that of white, and when the black plastic panel is used for isolating light, the wall thickness of the black plastic panel is thinner than that of a white backlight reflector, so that the modeling requirement of small spacing of characters can be met more easily; the lampshade improves the uniformity of light by utilizing the parabola principle, thereby improving the product quality.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments of the present invention or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic view of a conventional instrument backlight structure;
FIG. 2 is a schematic view of a backlight reflector of an instrument according to an embodiment of the present invention;
fig. 3 is a schematic view of a lampshade according to an embodiment of the invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical problems of high cost, poor light isolation effect and non-uniform light exist in the existing white backlight reflector.
Referring to fig. 2, to solve the above technical problem, the present embodiment provides a backlight reflector structure for an instrument, which includes a cover plate 6, a plastic panel 8 and a PCBA9 arranged from top to bottom. A cavity for accommodating the display screen 7 is formed on the plastic panel 8. A character display area is formed on the cover plate 6, and LED lamps are provided on the PCBA 9. A lampshade 13 is formed on the plastic panel 8, the bottom of the lampshade 13 is used for bearing the LED lamp, and the opening faces the character display area. The plastic panel 8 is a black plastic member.
In the embodiment, the backlight reflector and the plastic panel 8 are combined into a part, and the light-blocking structure of the backlight reflector is directly designed on the black plastic panel 8, so that the backlight reflector can be omitted, and the cost can be greatly saved; in addition, the black light isolation effect is far better than white, and the wall thickness can be thinner than that of a white backlight reflector when the black plastic panel 8 is used for isolating light, so that the modeling requirement of small space between characters can be met more easily.
As shown in fig. 3, further, the axial cross-sectional view of the lampshade 13 provided by the present embodiment is a parabola, and the LED lamp is located at the focus of the parabola.
By designing the lamp hole as a parabolic lamp shade 13 structure, the optical property of the paraboloid is that the light emitted from the focus is parallel to the symmetry axis of the parabola after the light is reflected by the parabola. The parabolic lamp hole structure is used for forming the indicating lamp hole in the plastic panel 8, the LED light emitting point is placed at the focus of the parabola, the parabolic lamp hole is formed by rotating the parabola at the periphery of the LED, and when light emitted by the LED is irradiated on the inner wall of the parabolic lamp hole, the light is reflected to be parallel light, so that the uniformity of light is improved.
In conclusion, the technical scheme provided by the embodiment can save 40% of the cost of the plastic part and save one set of die cost, thereby greatly reducing the material cost; the light uniformity is improved by utilizing the parabola principle, so that the product quality is improved.
The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.
Claims (4)
1. The utility model provides a reflection of light spare structure is shaded to instrument which characterized in that: comprises a cover plate, a plastic panel and a PCBA which are arranged from top to bottom; a cavity for accommodating a display screen is formed on the plastic panel; a character display area is formed on the cover plate; an LED lamp is arranged on the PCBA; a lampshade is formed on the plastic panel, the LED lamp is supported at the bottom of the lampshade, and the opening faces the character display area.
2. The meter backlight reflector structure of claim 1, wherein: the axial sectioning line of the lampshade is a parabola.
3. The meter backlight reflector structure of claim 2, wherein: the LED lamp is located at a focus of the parabola.
4. The meter backlight reflector structure of claim 3, wherein: the plastic panel is a black plastic part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111223664.0A CN114093254A (en) | 2021-10-21 | 2021-10-21 | Backlight reflector structure of instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111223664.0A CN114093254A (en) | 2021-10-21 | 2021-10-21 | Backlight reflector structure of instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114093254A true CN114093254A (en) | 2022-02-25 |
Family
ID=80297503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111223664.0A Pending CN114093254A (en) | 2021-10-21 | 2021-10-21 | Backlight reflector structure of instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114093254A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2523643Y (en) * | 2001-11-30 | 2002-12-04 | 台湾山叶发动机研究开发中心股份有限公司 | Meter with background lighting |
| WO2009041317A1 (en) * | 2007-09-26 | 2009-04-02 | Nippon Seiki Co., Ltd. | Display device |
| CN207049693U (en) * | 2017-03-24 | 2018-02-27 | 惠州市德赛西威汽车电子股份有限公司 | A kind of backing structure of touch key-press |
| CN108490690A (en) * | 2018-05-15 | 2018-09-04 | 伟志光电（深圳）有限公司 | A kind of glue iron integrated vehicle backlight of stable structure |
| CN208421469U (en) * | 2018-07-25 | 2019-01-22 | 南京帝华光电有限公司 | A kind of a plurality of backlight integrating devices |
| CN113990179A (en) * | 2021-10-11 | 2022-01-28 | 惠州市德赛西威汽车电子股份有限公司 | Backlight structure of instrument indicating character |
-
2021
- 2021-10-21 CN CN202111223664.0A patent/CN114093254A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2523643Y (en) * | 2001-11-30 | 2002-12-04 | 台湾山叶发动机研究开发中心股份有限公司 | Meter with background lighting |
| WO2009041317A1 (en) * | 2007-09-26 | 2009-04-02 | Nippon Seiki Co., Ltd. | Display device |
| CN207049693U (en) * | 2017-03-24 | 2018-02-27 | 惠州市德赛西威汽车电子股份有限公司 | A kind of backing structure of touch key-press |
| CN108490690A (en) * | 2018-05-15 | 2018-09-04 | 伟志光电（深圳）有限公司 | A kind of glue iron integrated vehicle backlight of stable structure |
| CN208421469U (en) * | 2018-07-25 | 2019-01-22 | 南京帝华光电有限公司 | A kind of a plurality of backlight integrating devices |
| CN113990179A (en) * | 2021-10-11 | 2022-01-28 | 惠州市德赛西威汽车电子股份有限公司 | Backlight structure of instrument indicating character |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220225 |
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| RJ01 | Rejection of invention patent application after publication |