CN204083982U - A kind of ammeter backlight - Google Patents
A kind of ammeter backlight Download PDFInfo
- Publication number
- CN204083982U CN204083982U CN201420362678.XU CN201420362678U CN204083982U CN 204083982 U CN204083982 U CN 204083982U CN 201420362678 U CN201420362678 U CN 201420362678U CN 204083982 U CN204083982 U CN 204083982U
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- CN
- China
- Prior art keywords
- light guide
- guide plate
- produced
- grab
- backlight
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a kind of ammeter backlight.The backlight that object is to provide should have good, easy for installation, the lower-cost feature of light conductivity.Technical scheme is: a kind of ammeter backlight, comprises the light guide plate of a sheet and the mounting bracket for installing this light guide plate; Be installed with LED luminescence component in the notch of light guide plate left side edge, the front of described mounting bracket is a plane, and the periphery of this plane holds together to be formed a reflection cavity mated with light guide plate by some side face edge circummures; It is characterized in that: described light guide plate and mounting bracket are fastened and connected by buckle structure; Described buckle structure comprises the grab that is produced on light guide plate both sides and is produced on the bayonet socket that the grafting corresponding to aforementioned grab of reflection cavity wall portion coordinate, or comprises the bayonet socket that is produced on light guide plate both sides and be produced on the grab that the grafting corresponding to aforementioned bayonet socket of reflection cavity wall portion coordinate.
Description
Technical field
The utility model relates to a kind of instrument and meter backlight, the backlight on especially a kind of kilowatt-hour meter.
Background technology
The backlight of conventional kilowatt-hour meter LCD liquid crystal comprises the sheet light guide plate that is fixed on mounting bracket front, and in the notch of edge, light guide plate side, LED luminescence component is housed, reflectance coating is posted at the back side of light guide plate, edge strip is posted with reflection ray in surrounding side.After LED luminescence component electrified light emitting, namely light conduct to whole light guide plate from light guide plate side, and the front of light guide plate is namely luminous, thus provide backlight to show for LCD liquid crystal.
In above-mentioned backlight, light guide plate is connected on support by adhesive glue, also exist cohesive force strong, hold caducous defect; In addition, top and the bottom of the direct through light guide plate of notch of LED luminescence component are installed, when with instant glue bonding LED luminescence component, instant glue very easily leaks out to the bottom surface of light guide plate, cause backlight to occur the quality problems (abbreviation albinism) of " white light spot ", cause up-to-standard rate to decline.
Utility model content
The purpose of this utility model overcomes the deficiency in above-mentioned background technology, provides a kind of improvement of ammeter backlight, and this backlight should have good, easy for installation, the lower-cost feature of light conductivity.
The technical scheme that the utility model provides is:
A kind of ammeter backlight, comprises the light guide plate of a sheet and the mounting bracket for installing this light guide plate; Be installed with LED luminescence component in the notch of light guide plate left side edge, the front of described mounting bracket is a plane, and the periphery of this plane holds together to be formed a reflection cavity mated with light guide plate by some side face edge circummures; It is characterized in that: described light guide plate and mounting bracket are fastened and connected by buckle structure; Described buckle structure comprises the grab that is produced on light guide plate both sides and is produced on the bayonet socket that the grafting corresponding to aforementioned grab of reflection cavity wall portion coordinate, or comprises the bayonet socket that is produced on light guide plate both sides and be produced on the grab that the grafting corresponding to aforementioned bayonet socket of reflection cavity wall portion coordinate.
The described bayonet socket being produced on reflection cavity wall portion also extends toward below and through described plane.
Described notch has the opening of top and left end both direction, and all the other directions intercept by the plate body of light guide plate.
The beneficial effects of the utility model are: owing to have employed buckle structure, not only fasten close and firm between sheet light guide plate and mounting bracket, completely eliminate the possibility of both disengagements, and installation becomes more simple easy (slightly exerting oneself one after only buckle need being aimed at by realizing fastening); And, the bottom end closure of notch, the down Seepage of instant glue is prevented when LED luminescence component is installed, thus the dot surface eliminating frame bottom reflecting surface and light guide plate produces the possibility of albinism because being infected with instant glue, not only increase substantially production efficiency, also reduce operation easier, decrease production cost.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present utility model.
Fig. 2 is the main TV structure schematic diagram of light guide plate in the utility model.
Fig. 3 is the main TV structure schematic diagram of light guide plate in the utility model (after removing luminescence component).
Fig. 4 is the plan structure schematic diagram of light guide plate shown in Fig. 3.
Fig. 5 be light guide plate shown in Fig. 3 look up structural representation.
Fig. 6 is the main TV structure schematic diagram of mounting bracket in the utility model.
Fig. 7 is the plan structure schematic diagram of mounting bracket in the utility model.
Fig. 8 is the A-A sectional structure schematic diagram in Fig. 7.
Fig. 9 is the B portion structure for amplifying schematic diagram in Fig. 3.
Detailed description of the invention
Below in conjunction with Figure of description, the utility model is described in further detail.
As shown in Figure 1, ammeter backlight described in the utility model, comprise the light guide plate 1 (reflectance coating is posted at the light guide plate back side, edge strip is posted with reflection ray in surrounding side) of a sheet, one adopts PC material (polycarbonate) to make and mounting bracket 3 for installing light guide plate; The front of mounting bracket is a plane, the periphery of this plane is crowded around by some side abutment wall 3-2 and is formed a reflection cavity matched with light guide plate profile, the degree of depth of reflection cavity and the thickness fit (light guide plate sinks to and is fixed in this reflection cavity) of light guide plate; LED luminescence component 3 (light guide plate be fixed on reflection cavity after, two wires 2 on luminescence component stretch out from notch) is installed in the notch 1-1 in the left side of light guide plate.Structure and the conventional light guide plate of light guide plate are similar, end face is exiting surface, bottom surface is dot surface, this dot surface is made up of the site of multiple protrusion that (site is professional terms, i.e. small salient point), the mutual alignment arrangement of these sites, the size of site and the shape etc. of site all can be determined as required, and the projecting height of site also can be determined as requested, and recommendation projecting height is 0.01 ~ 0.1mm.Above structure and existing ammeter backlight are roughly the same.
The connected mode of the utility model to described light guide plate and mounting bracket is improved, and adopts the snap-fit attachment of buckle structure to instead of original glue bonding connected mode.In described buckle structure: light guide plate both sides make at least one grab 1-2 respectively, and be manufactured with the opening 3-1 carrying out grafting with grab and coordinate at reflection cavity wall portion position corresponding with aforementioned grab; Or position, reflection cavity two side does not make at least one grab, and position corresponding with aforementioned grab is manufactured with the bayonet socket carrying out grafting with grab and coordinate in light guide plate both sides.In accompanying drawing illustrated embodiment, the right side of light guide plate is a plane, this plane is manufactured with 2 outstanding grabs of turning right; Notch 1-1 both sides on the left of light guide plate, make symmetry and arrange two planes mutually tilted, each plane being manufactured with the grab outstanding toward plane normal direction; And be manufactured with on reflection cavity sidewall and described grab bayonet socket one to one; Insert after only the grab of the side of light guide plate need being aimed at the bayonet socket of reflection cavity sidewall during installation (usually first inserting right side grab), the lower opposite side pressing light guide plate of force, can make both fasten like a cork slightly.
As shown in Figure 8: described in be produced on reflection cavity wall portion bayonet socket except extending at the length direction (i.e. the left and right directions of drawing) of light guide plate, also extend toward below and through described plane; This structural design is more conducive to installation and the making of light guide plate.
Structure is known as shown in Figure 9: described notch is half blind slot structure, this notch has the opening (directly and outside through) of top and left end both direction, all the other directions by the plate body of light guide plate intercept (the notch bottom of existing light guide plate and the external world through; The utility model changes reserved part plate body into, so bottom and the external world are not through); Thus when luminescence component is installed, effectively prevent the phenomenon of instant glue down seepage, eliminate the dot surface of frame bottom reflecting surface and light guide plate by the possibility that instant glue pollutes and albefaction is bad.
Claims (3)
1. an ammeter backlight, comprises the light guide plate (1) of a sheet and the mounting bracket (3) for installing this light guide plate; Be installed with LED luminescence component in the notch (1-1) of light guide plate left side edge, the front of described mounting bracket is a plane, and the periphery of this plane is crowded around by some side abutment walls (3-2) and formed a reflection cavity mated with light guide plate; It is characterized in that: described light guide plate and mounting bracket are fastened and connected by buckle structure; Described buckle structure comprises the grab (1-2) that is produced on light guide plate both sides and is produced on the bayonet socket (3-1) that the grafting corresponding to aforementioned grab of reflection cavity wall portion coordinate, or comprises the opening that is produced on light guide plate both sides and be produced on the grab that the grafting corresponding to aforementioned opening of reflection cavity wall portion coordinate.
2. ammeter backlight according to claim 1, is characterized in that: described in be produced on reflection cavity wall portion opening also extend toward below and through described plane.
3. ammeter backlight according to claim 2, is characterized in that: described notch has the opening of top and left end both direction, all the other directions intercept by the plate body of light guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420362678.XU CN204083982U (en) | 2014-07-02 | 2014-07-02 | A kind of ammeter backlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420362678.XU CN204083982U (en) | 2014-07-02 | 2014-07-02 | A kind of ammeter backlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204083982U true CN204083982U (en) | 2015-01-07 |
Family
ID=52176698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420362678.XU Expired - Fee Related CN204083982U (en) | 2014-07-02 | 2014-07-02 | A kind of ammeter backlight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204083982U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109358389A (en) * | 2018-10-30 | 2019-02-19 | 东莞市谷麦光学科技有限公司 | A kind of mobile phone leaded light component |
-
2014
- 2014-07-02 CN CN201420362678.XU patent/CN204083982U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109358389A (en) * | 2018-10-30 | 2019-02-19 | 东莞市谷麦光学科技有限公司 | A kind of mobile phone leaded light component |
| CN109358389B (en) * | 2018-10-30 | 2024-03-22 | 东莞市谷麦光学科技有限公司 | Light guide assembly of mobile phone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20170702 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |