CN203431568U - Light-emitting diode (LED) indicating device - Google Patents
Light-emitting diode (LED) indicating device Download PDFInfo
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- CN203431568U CN203431568U CN201320549508.8U CN201320549508U CN203431568U CN 203431568 U CN203431568 U CN 203431568U CN 201320549508 U CN201320549508 U CN 201320549508U CN 203431568 U CN203431568 U CN 203431568U
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- light
- led lamp
- guiding pillar
- led
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Abstract
The utility model provides a light-emitting diode (LED) indicating device and relates to the field of LED lamps. The LED indicating device comprises a protective casing, an LED lamp and a light guiding pillar. A through hole is formed in the protective casing. The LED lamp is arranged in the protective casing and below the through hole. The light guiding pillar is arranged in the through hole, and the position between the light guiding pillar and the through hole lateral wall is sealed. By means of the design, the LED indicating device is simple to install, especially when the LED lamps are large in number, assembling staff can install the protective casing on a printed circuit board directly, and light-emitting bodies of the LED lamps are not required to be inserted into the through holes one by one, so that assembling difficulty is reduced.
Description
Technical field
The utility model relates to LED lamp field, particularly relates to a kind of LED indicating device.
Background technology
LED(light emitting diode) from invention, have so far the development and application of more than 50 year.Using LED as indicator lamp, have the advantages such as volume is little, low in energy consumption, color and luster is pure, the life-span is long, therefore, it is in all trades and professions extensive application.
Common plug-in mounting LED lamp body diameter is 3mm and 5mm, and its colloid is generally epoxy resin, plays protection wafer and leaded light.Cartridge-type LED lamp is divided into two types of scatter-type and light-focusing types conventionally.As shown in Figure 1, the colloidal type of scatter-type LED lamp 101 is similar to a convex mirror, and light is dispersed to surrounding, so its visible angle is large; The colloidal type of light-focusing type LED lamp 102 is similar to convex lens, and the light that wafer can be sent out converges at a direction, so the luminous intensity of its single direction is large.
In the prior art, conventionally by two kinds of modes, LED lamp is arranged on to printed circuit board (PCB) (PCB printed board) upper, the LED indicating device corresponding with these two kinds of modes as shown in Figure 2 and Figure 3.In Fig. 2, LED lamp is directly installed on printed circuit board (PCB), and then a part for the colloid of LED lamp is embedded in protection housing; In Fig. 3, LED lamp is directly installed on printed circuit board, and a PVC panel 301 is arranged at the protection housing region corresponding with LED lamp, so that installing hole is sealed.
In the LED indicating device corresponding with Fig. 2, between the colloid of LED lamp and machine shell panel, there is gap, therefore can not accomplish complete air-tightness, can meet the demand of conventional application, but at some, air-tightness be had the occasion of requirement just inapplicable.In addition, the bore size on protection housing is too small, is not easy to the installation of LED lamp; And containment vessel surface is uneven, attractive in appearance not.
In the LED indicating device corresponding with Fig. 3, protection housing is smooth and attractive in appearance, also have certain seal, but environmental suitability is limited simultaneously, and under temperature shock, PVC panel 301 is easily aging, particularly yielding under low temperature and hot conditions; And PVC panel 301 protectives are poor, and application industry is limited.In addition, when pitch of holes in protection on housing is too small, easily the LED lamp closing on is interfered; And the bore size on protection housing is too small, be not easy to the installation of LED lamp.
Utility model content
An object of the present utility model is that a kind of easy-to-install LED indicating device will be provided, the difficulty while assembling to reduce.
A further object of the present utility model is to make between LED lamp spacing hour, does not occur the situation that mutual light disturbs.
Especially, the utility model provides a kind of LED indicating device, comprising: protection housing, offers through hole on it; LED lamp, is arranged in protection housing, and is positioned at through hole below;
Described LED indicating device also comprises: light-guiding pillar, is arranged in described through hole, and arranges hermetically between described light-guiding pillar and through-hole side wall.
Further, described LED lamp is light-focusing type LED lamp.
Further, the exiting surface of described light-guiding pillar is frosting.
Further, the exiting surface of described light-guiding pillar flushes in the surface away from LED lamp of described protection housing.
Further, between described light-guiding pillar and described through-hole side wall, by silicone rubber seal, arrange.
Further, described light-guiding pillar is made by polymethyl methacrylate.
Further, the axis of the axis of described light-guiding pillar and described LED lamp coincides.
Further, the incidence surface of described light-guiding pillar flushes in the surface of the close described LED lamp of described protection housing.
Further, described LED lamp is plug-in type LED lamp.
Further, described light-guiding pillar comprises dead in line and integrated two cylinders, and the cross section of described incidence surface is greater than the cross section of described exiting surface.
In the through hole of protection housing of the present utility model, be provided with light-guiding pillar, LED lamp is without inserting in protection housing, so it is comparatively easy when mounted.Especially when LED lamp is more, directly protection housing is installed, and needn't make the illuminator of LED lamp insert one by one in the through hole on protection housing, reduced assembly difficulty.
Further, LED lamp of the present utility model is light-focusing type LED lamp, and light can converge, and directly from corresponding light-guiding pillar, outwards penetrates, at the installing space with periphery LED lamp hour, can not scatter to contiguous light-guiding pillar or appear and cause user misoperation from other LED through holes of periphery.
Further, the exiting surface of light-guiding pillar is frosting, and the directional light of light-focusing type LED lamp is dispersed to surrounding when going out light-guiding pillar, and this can effectively improve user's visible angle.
According to the detailed description to the utility model specific embodiment by reference to the accompanying drawings below, those skilled in the art will understand above-mentioned and other objects, advantage and feature of the present utility model more.
Accompanying drawing explanation
Hereinafter in exemplary and nonrestrictive mode, describe specific embodiments more of the present utility model in detail with reference to the accompanying drawings.In accompanying drawing, identical Reference numeral has indicated same or similar parts or part.It should be appreciated by those skilled in the art that these accompanying drawings may not draw in proportion.In accompanying drawing:
Fig. 1 is according to the schematic diagram of the scatter-type LED lamp of prior art and light-focusing type LED lamp;
Fig. 2 is according to the structural representation of a kind of LED indicating device of prior art;
Fig. 3 is according to the structural representation of the another kind of LED indicating device of prior art;
Fig. 4 is the structural representation of the LED indicating device of an embodiment of the utility model.
The mark using in accompanying drawing is as follows:
101 scatter-type LED lamps
102 light-focusing type LED lamps
201 printed circuit board (PCB)s
202 LED lamps
203 protection housings
301 PVC panels
401 light-guiding pillars
402 705 silicon rubber interlayers
The specific embodiment
Fig. 4 is the structural representation of the LED indicating device of an embodiment of the utility model.LED indicating device of the present utility model can comprise in general manner: protection housing 203, offers through hole on it; LED lamp 202, is arranged in protection housing 203, and is positioned at through hole below; Light-guiding pillar 401, is arranged in through hole, and arranges hermetically between light-guiding pillar 401 and through-hole side wall.It will be appreciated that; described through hole can replace with and run through the opening of protecting housing 203; now described light-guiding pillar 401 is arranged in described opening; and (for example adapt with the shape of described opening; in the embodiment described in Fig. 4; for adapting with the opening shape of protection housing 203, light-guiding pillar 401 is arranged to be comprised of two deads in line and integrated cylinder, and the cross section of light-guiding pillar incidence surface is greater than the cross section of exiting surface).
In the embodiment described in Fig. 4, LED lamp 202 is fixedly installed on printed circuit board (PCB) 201, and light-guiding pillar 401 runs through protection housing 203, and the incidence surface of light-guiding pillar 401 flushes in the surface of the close LED lamp 202 of protection housing 203; As shown in Figure 4, when protecting housing 203 in installation site, the axis of the axis of light-guiding pillar 401 and LED lamp 202 coincides, and the incidence surface of light-guiding pillar 401 contacts with LED lamp.Incidence surface herein refers to that light that LED lamp 202 sends enters the end face of light-guiding pillar 401.This design makes LED lamp 202 without inserting in protection housing 203, so it is comparatively easy when mounted.Especially when LED lamp 202 is more, directly protection housing 203 is arranged on printed circuit board (PCB) 201, and needn't makes the illuminator of LED lamp 202 insert one by one in perforate, reduced assembly difficulty when product is installed and safeguards dismounting.
It will be appreciated that; embodiment described in Fig. 4 is best assembling situation; in other embodiment of the present utility model; incidence surface can (be protected housing 203 as being recessed into lesser extent protection housing 203 or protruding) together with protecting the air spots of the close LED lamp 202 of housing 203; incidence surface can not contact with LED yet, and the axis of the axis of light-guiding pillar 402 and LED lamp 202 also can have less deviation.
In the embodiment described in Fig. 4, LED lamp 202 can be light-focusing type LED lamp 102.The light of light-focusing type LED lamp 102 can converge, directly from corresponding light-guiding pillar 401, outwards penetrate, at the installing space with periphery LED lamp 202 hour, can not scatter to contiguous light-guiding pillar 401 or appear and cause user misoperation from other LED through holes of periphery; Also avoided the poor problem of light transmission causing because aperture is too small simultaneously.LED lamp 202 can be also scatter-type LED lamp 101, and it can arrange in the surrounding of LED lamp 202 light that light barrier avoids LED lamp 202 and appear and cause maloperation from contiguous light-guiding pillar 401 or from other LED through holes.
In the embodiment described in Fig. 4, the exiting surface of light-guiding pillar 401 flushes in the surface away from LED lamp 202 of protection housing 203, and exiting surface is frosting.Frosting generally obtains by physics or chemical method.For example, the abrasive materials such as diamond dust, silica sand, pomegranate powder for exiting surface of light-guiding pillar 401 are carried out to mechanical lapping or hand-ground to it, make the surface of even roughness, also can to the exiting surface of light-guiding pillar 401, process with hydrofluoric acid solution.Exiting surface refers to from light-guiding pillar 401, penetrate and enter extraneous end face after light that LED lamp 202 sends enters light-guiding pillar 401.This design is dispersed the directional light of light-focusing type LED lamp 102 when going out light-guiding pillar 401 to surrounding, this can effectively improve user's visible angle.In addition, the exiting surface of light-guiding pillar 401 in same plane, makes to protect housing 203 integral body more attractive in appearance with protection housing 203; And light-guiding pillar 401 is conducive to improve sealing property, can be better that LED lamp 202 and external environment condition is isolated, reduce the impact of environment on LED lamp 202.
In an embodiment of the present utility model, light-guiding pillar 401 is made by polymethyl methacrylate (Polymethylmethacrylate is called for short PMMA, English Acrylic).Polymethyl methacrylate claims again acrylic or lucite, and the number-average molecular weight of its cast panel polymer is generally 2.2 * 104, and relative density is 1.19～1.20, and refractive index is 1.482～1.521, and wettability is below 0.5%, and vitrification point is 105 ℃.Have the high grade of transparency, low price, is easy to the advantages such as machining, is the glass alternative materials of usually often using.The visible light transmissivity of this material is higher, is the best current macromolecule transparent material, and visible light transmissivity reaches 92%, higher than the light transmittance of glass.Therefore, the light-guiding pillar 401 that uses this material to be made into, can reduce light that the illuminator of LED lamp 202 sends and by light-guiding pillar 401, absorbed and launch and the light energy losses that causes.
In a preferred version of the present utility model, LED lamp 202 can also be technical grade light-focusing type LED lamp, the environmental suitability of the light-guiding pillar of now making due to itself and acrylic material is all very strong, can meet most industry and most military environmental requirements after assembling.It will be appreciated that, light-guiding pillar 401 not only can be made by polymethyl methacrylate, can also be made by other material of the high printing opacity in prior art field, environmental adaptation sexual satisfaction industrial requirement; Along with the development of material science, light-guiding pillar 401 also can be made by the emerging material with high light transmittance and good environmental suitability.
In another embodiment of the present utility model, between described light-guiding pillar 401 and described through-hole side wall, by silicone rubber seal, arrange, described silicon rubber can be 705 silicon rubber, thereby 203 has formed 705 silicon rubber interlayers 402 between light-guiding pillar 401 and protection housing.The gap that 705 silicon rubber filling have been used in this design light-guiding pillar 401 and protection housing are 203; in fixing light-guiding pillar 401; played sealing function; after making to protect housing 203 to install; LED lamp 202 is in a relative environment for sealing, and this can extend the life-span of LED lamp 202 under harsh and unforgiving environments, reduces or be avoided the interference of environment to LED lamp 202.In other embodiment of the present utility model, the material that described light-guiding pillar 401 can have high adherence and high leakproofness by other is installed in the opening or through hole of protection housing 203.
In other embodiment of the present utility model, LED lamp 202 can be plug-in type LED lamp.
So far, those skilled in the art will recognize that, although detailed, illustrate and described a plurality of exemplary embodiment of the present utility model herein, but, in the situation that not departing from the utility model spirit and scope, still can directly determine or derive many other modification or the modification that meets the utility model principle according to the disclosed content of the utility model.Therefore, scope of the present utility model should be understood and regard as and cover all these other modification or modifications.
Claims (10)
1. a LED indicating device, comprising:
Protection housing, offers through hole on it;
LED lamp, is arranged in protection housing, and is positioned at through hole below;
It is characterized in that, described LED indicating device also comprises:
Light-guiding pillar, is arranged in described through hole, and arranges hermetically between described light-guiding pillar and through-hole side wall.
2. device according to claim 1, is characterized in that:
Described LED lamp is light-focusing type LED lamp.
3. device according to claim 1 and 2, is characterized in that:
The exiting surface of described light-guiding pillar is frosting.
4. device according to claim 3, is characterized in that:
The exiting surface of described light-guiding pillar flushes in the surface away from LED lamp of described protection housing.
5. device according to claim 4, is characterized in that:
Between described light-guiding pillar and described through-hole side wall, by silicone rubber seal, arrange.
6. device according to claim 5, is characterized in that:
Described light-guiding pillar is made by polymethyl methacrylate.
7. device according to claim 6, is characterized in that:
The axis of the axis of described light-guiding pillar and described LED lamp coincides.
8. device according to claim 7, is characterized in that:
The incidence surface of described light-guiding pillar flushes in the surface of the close described LED lamp of described protection housing.
9. device according to claim 8, is characterized in that:
Described LED lamp is plug-in type LED lamp.
10. device according to claim 9, is characterized in that:
Described light-guiding pillar comprises dead in line and integrated two cylinders, and the cross section of described incidence surface is greater than the cross section of described exiting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320549508.8U CN203431568U (en) | 2013-09-05 | 2013-09-05 | Light-emitting diode (LED) indicating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320549508.8U CN203431568U (en) | 2013-09-05 | 2013-09-05 | Light-emitting diode (LED) indicating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203431568U true CN203431568U (en) | 2014-02-12 |
Family
ID=50060605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320549508.8U Expired - Fee Related CN203431568U (en) | 2013-09-05 | 2013-09-05 | Light-emitting diode (LED) indicating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203431568U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9946003B2 (en) | 2016-02-18 | 2018-04-17 | Wistron Corporation | Light guiding structure for guiding light transmitted from a plurality of light emitting components and light emitting device therewith |
| CN111928207A (en) * | 2020-07-30 | 2020-11-13 | 许继集团有限公司 | Light-crosstalk-preventing structure mounted on LED |
| CN117927887A (en) * | 2024-03-25 | 2024-04-26 | 杭州冰特科技股份有限公司 | Case panel indicator lamp module and preparation method thereof |
-
2013
- 2013-09-05 CN CN201320549508.8U patent/CN203431568U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9946003B2 (en) | 2016-02-18 | 2018-04-17 | Wistron Corporation | Light guiding structure for guiding light transmitted from a plurality of light emitting components and light emitting device therewith |
| CN111928207A (en) * | 2020-07-30 | 2020-11-13 | 许继集团有限公司 | Light-crosstalk-preventing structure mounted on LED |
| CN117927887A (en) * | 2024-03-25 | 2024-04-26 | 杭州冰特科技股份有限公司 | Case panel indicator lamp module and preparation method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20180905 |