CN105353457A - Light guide apparatus and method of double-layer housing equipment - Google Patents
Light guide apparatus and method of double-layer housing equipment Download PDFInfo
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- CN105353457A CN105353457A CN201510887709.2A CN201510887709A CN105353457A CN 105353457 A CN105353457 A CN 105353457A CN 201510887709 A CN201510887709 A CN 201510887709A CN 105353457 A CN105353457 A CN 105353457A
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- Prior art keywords
- light
- guiding pillar
- guiding
- internal layer
- emitting diode
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/0091—Positioning aspects of the light source relative to the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/003—Lens or lenticular sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
- G02B6/0073—Light emitting diode [LED]
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0093—Means for protecting the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0095—Light guides as housings, housing portions, shelves, doors, tiles, windows, or the like
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a light guide apparatus and method of double-layer housing equipment. The light guide apparatus of the double-layer housing equipment is characterized by comprising a light emitting diode (2) and a light guide column; the double-layer housing equipment is provided with an inner-layer housing and an outer-layer housing, the light emitting diode is welded on a circuit board in the inner-layer housing (5), and the inner-layer housing is provided with a first light transmitting hole; the luminescence position of the light emitting diode is disposed at the inner side of the first light transmitting hole, and the outer-layer housing is provided with a second light transmitting hole; the front end and the rear end of the light guide column are respectively plugged into the first light transmitting hole and the second light transmitting hole; and light emitted from the light emitting diode is conducted via the light guide column and is emitted through the second light transmitting hole. The light guide apparatus and method of the double-layer housing equipment are easy to implement and can realize a good light guide effect.
Description
Technical field
The present invention relates to a kind of guiding device and method of double casing equipment, be particularly suitable in bulk conveying system bad environments, the temperature difference is large, high humility, dust are many rugged surroundings, as the highlighted guide-lighting scheme of multistage high guard shield opertaing device.
Background technology
In Bulk material field site of deployment, opertaing device is many, equipment disperses, has a very wide distribution, and opertaing device must have clear display state.Opertaing device itself also faces rugged environment simultaneously, high humility, many dust places of causing opertaing device in such circumstances must possess high degree of protection, in order to avoid dust or moisture access arrangement inside, cause electric malfunction, short circuit etc., very large infringement is caused to safe operation.At present, the safeguard structure of opertaing device many employings one-level shell, utilizes O-ring seal etc. to carry out encapsulation process, reaches high-protection level, but due to problems such as assembling or techniques, still likely access arrangement is inner for all-pervasive dust or moisture, forms hidden danger.In order to further reinforcement protection, the structure of shell mesochite can be adopted, main circuit board is placed in inner casing, wait guard shield by two-stage height, dust and moisture almost cannot be entered.But this has also occurred a new problem, highlighted for light, how not destroying in inner casing height safeguard structure situation, has been exported to the external world by the pilot lamp source of inner casing.Go back the concrete effective solution of neither one at present.
。Therefore, the guiding device and the method that design a kind of double casing equipment is necessary.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of guiding device and method of double casing equipment, and guiding device and the method for this double casing equipment are easy to implement, have good light guide effect.
The technical solution of invention is as follows:
A guiding device for double casing equipment, comprises light emitting diode (2) and light-guiding pillar; Double casing equipment has internal layer shell and outer shell, and on the circuit board of LED welding in internal layer shell (5), internal layer shell is provided with the first light hole; The luminous site of light emitting diode, in the inner side of the first light hole, outer casing has the second light hole; The front-end and back-end of light-guiding pillar are inserted in the second light hole and the first light hole respectively; The light that light emitting diode sends conducts through light-guiding pillar and is sent by the second light hole.
Light emitting diode is the direct insertion LED with 2 pins; The pillar (1) for supporting light emitting diode is provided with between the illuminating part of light emitting diode and circuit board.
Pillar adopts top to have the cylindrical structural of 2 holes, inner hollow.
Specifically, pillar is cylinder, is provided with horizontal dividing plate in cylinder, and for placing the luminous component of light emitting diode above dividing plate, dividing plate is provided with 2 holes, for inserting 2 pins of light emitting diode.
2 pins of light emitting diode are penetrated by position, post top portion 2 holes, be welded and fixed by the position, hole of pcb board, pin two ends are all forced isolation again, and the situation touching short circuit can not occur, and pin be sealed in completely cylindrical in, avoid pin and expose oxidizable problem of getting rusty.The pillar effect comparing I shape is better.Though the pillar of I shape effectively can isolate light emitting diode 2 pin, can not short circuit, pin exposes, and easily gets rusty, and is not considered.】
Described light-guiding pillar is made up of internal layer light-guiding pillar (3) and outer light-guiding pillar (4); Internal layer light-guiding pillar is inserted in the first light hole, and the front end of the second light-guiding pillar is inserted in the second light hole, and the rear end of the second light-guiding pillar and the front end of the first light-guiding pillar offset.
Internal layer light-guiding pillar and outer light-guiding pillar all have one for spacing annular edge edge.
The front end of internal layer light-guiding pillar be convex lens [internal layer light-guiding pillar profile similar " mortar-board " shape, top levels can contact with the seamless minute surface of outer light-guiding pillar; Below is the cylinder of hollow, and the illuminating part of light emitting diode can be placed in cylinder.For reaching excellent light guide effect, made downward " convex surface " on the top of cylindrical inside, the light of light emitting diode scattering becomes directional light through convex surface and propagates in light-guiding pillar, reduces the conduction loss of anaclasis, scattering etc.The structure that internal layer light-guiding pillar is totally wide at the top and narrow at the bottom in addition is also easier to light-guiding pillar location, inlays in the housing, and possesses better waterproof effect.】
The front end of outer light-guiding pillar is sphere or ellipsoid, and protruding from the second light hole.
A light-guiding method for double casing equipment, adopts the guiding device of aforesaid double casing equipment; The light sent by light emitting diode by light-guiding pillar is transmitted to outer casing and sends from the second light hole of outer casing.
Light emitting diode is the direct insertion LED with 2 pins; The pillar (1) for supporting light emitting diode is provided with between the illuminating part of light emitting diode and circuit board; Make light emitting diode more firm by shore supports light emitting diode.
Described light-guiding pillar is made up of internal layer light-guiding pillar (3) and outer light-guiding pillar (4); Internal layer light-guiding pillar is inserted in the first light hole, and the front end of the second light-guiding pillar is inserted in the second light hole, and the rear end of the second light-guiding pillar and the front end of the first light-guiding pillar offset; Internal layer light-guiding pillar and outer light-guiding pillar all have one for spacing annular edge edge; The annular edge of outer light-guiding pillar is along being used for preventing outer light-guiding pillar from outwards being deviate from by the second light hole; The annular edge of internal layer light-guiding pillar is along being used for preventing internal layer light-guiding pillar from inwardly being deviate from by the first light hole.
The front end of internal layer light-guiding pillar is convex lens, conducts in outer light-guiding pillar for the scattered light sent of light emitting diode is transformed into directional light;
The front end of outer light-guiding pillar is sphere or ellipsoid, and protruding from the second light hole, externally sends in space for the directional light in outer light-guiding pillar is become scattered light, reduction lumination of light emitting diode effect;
Internal layer light-guiding pillar and outer light-guiding pillar all have external thread, and the first described light hole and the second light hole are threaded hole; By screwing in the first light hole place of internal layer shell after the screw thread of internal layer light-guiding pillar point glue, housing and internal layer light-guiding pillar is made to form an entirety, slitless connection [reaching the effect of IP67 high-protection level and printing opacity]; The second light hole place of outer casing will be screwed in after the screw thread of outer light-guiding pillar point glue, make housing and outer light-guiding pillar form an entirety [IP67 high-protection level can be reached and high bright light is incident upon outermost layer, reach desirable display effect, make the accessible display of controller].
With cylindrical plastic pillar, highlighted light-focusing type round end light emitting diode is lifted to the focal position calculated, makes astigmatism become directional light conduction by the convex surface of internal layer light-guiding pillar.
Beneficial effect:
The guiding device of double casing equipment of the present invention and method, can under the high guard shield structure of inside and outside bilayer, outermost layer is exported to by highlighted for the light source of internal layer shell, reach desirable display effect, make the accessible display of status signal energy of double casing equipment (as controller etc.).
Guide-lighting distance can reach 30mm.The design of multilayer package restraining not by pilot lamp display problem can be made, also can reach the highlight effect of high-protection level, thus make the shell mechanism more diversification of electronic product.
Designed by the convex lens of internal layer light-guiding pillar, the scattering luminous energy that light source is sent pools directional light conduction, and the outer end of outer light-guiding pillar is round end, can go back the luminescence of primary source, the operating personnel be convenient under rugged surroundings clearly can know the indicating status of equipment in different angles.
Internal layer light-guiding pillar and outer light-guiding pillar are coordinated with light hole by screw thread, in conjunction with tight, and are fixed by glue sealing and strengthening, can reach better sealing effectiveness and protection effect.
Generally speaking, guiding device and the method design of double casing equipment of the present invention are ingenious, easy to implement, and light guide effect is given prominence to, and is particularly suitable for being applied in rugged surroundings.
Accompanying drawing explanation
Fig. 1 is the general structure schematic diagram of the guiding device of double casing equipment.
Fig. 2 is the structural representation of pillar.
Fig. 3 is the structural representation of internal layer light-guiding pillar.
Fig. 4 is the structural representation of light emitting diode.
Fig. 5 is the structural representation of outer light-guiding pillar;
Fig. 6 is the end view of pillar.
Fig. 7 is the vertical view of interior light-guiding pillar;
Fig. 8 is the side view of interior light-guiding pillar;
Fig. 9 is the upward view of interior light-guiding pillar.
Label declaration: 1-pillar, 2-light emitting diode, 3-internal layer light-guiding pillar; The outer light-guiding pillar of 4-, 5-internal layer shell, 6-outer casing.
Embodiment
Below with reference to the drawings and specific embodiments, the present invention is described in further details:
Embodiment 1:
As shown in figs 1-9, a kind of guiding device of double casing equipment, comprises light emitting diode (2) and light-guiding pillar; Double casing equipment has internal layer shell and outer shell, and on the circuit board of LED welding in internal layer shell (5), internal layer shell is provided with the first light hole; The luminous site of light emitting diode, in the inner side of the first light hole, outer casing has the second light hole; The front-end and back-end of light-guiding pillar are inserted in the second light hole and the first light hole respectively; The light that light emitting diode sends conducts through light-guiding pillar and is sent by the second light hole.
Light emitting diode is the direct insertion LED with 2 pins; The pillar (1) for supporting light emitting diode is provided with between the illuminating part of light emitting diode and circuit board.Pillar adopts top to have the cylindrical structural of 2 holes, inner hollow.2 pins of light emitting diode are penetrated by position, post top portion 2 holes, be welded and fixed by the position, hole of pcb board, pin two ends are all forced isolation again, and the situation touching short circuit can not occur, and pin be sealed in completely cylindrical in, avoid pin and expose oxidizable problem of getting rusty.The pillar effect comparing I shape is better.
Described light-guiding pillar is made up of internal layer light-guiding pillar (3) and outer light-guiding pillar (4); Internal layer light-guiding pillar is inserted in the first light hole, and the front end of the second light-guiding pillar is inserted in the second light hole, and the rear end of the second light-guiding pillar and the front end of the first light-guiding pillar offset.
Internal layer light-guiding pillar and outer light-guiding pillar all have one for spacing annular edge edge.
The front end of internal layer light-guiding pillar is convex lens; Internal layer light-guiding pillar profile similar " mortar-board " shape, top levels can contact with the seamless minute surface of outer light-guiding pillar; Below is the cylinder of hollow, and the illuminating part of light emitting diode can be placed in cylinder.For reaching excellent light guide effect, made downward " convex surface " on the top of cylindrical inside, the light of light emitting diode scattering becomes directional light through convex surface and propagates in light-guiding pillar, reduces the conduction loss of anaclasis, scattering etc.The structure that internal layer light-guiding pillar is totally wide at the top and narrow at the bottom in addition is also easier to light-guiding pillar location, inlays in the housing, and possesses better waterproof effect.
The front end of outer light-guiding pillar is sphere, and protruding from the second light hole.
A light-guiding method for double casing equipment, adopts the guiding device of aforesaid double casing equipment; The light sent by light emitting diode by light-guiding pillar is transmitted to outer casing and sends from the second light hole of outer casing.
Light emitting diode is the direct insertion LED with 2 pins; The pillar (1) for supporting light emitting diode is provided with between the illuminating part of light emitting diode and circuit board; Make light emitting diode more firm by shore supports light emitting diode.
Described light-guiding pillar is made up of internal layer light-guiding pillar (3) and outer light-guiding pillar (4); Internal layer light-guiding pillar is inserted in the first light hole, and the front end of the second light-guiding pillar is inserted in the second light hole, and the rear end of the second light-guiding pillar and the front end of the first light-guiding pillar offset; Internal layer light-guiding pillar and outer light-guiding pillar all have one for spacing annular edge edge; The annular edge of outer light-guiding pillar is along being used for preventing outer light-guiding pillar from outwards being deviate from by the second light hole; The annular edge of internal layer light-guiding pillar is along being used for preventing internal layer light-guiding pillar from inwardly being deviate from by the first light hole.
The front end of internal layer light-guiding pillar is convex lens, conducts in outer light-guiding pillar for the scattered light sent of light emitting diode is transformed into directional light;
The front end of outer light-guiding pillar is sphere or ellipsoid, and protruding from the second light hole, externally sends in space for the directional light in outer light-guiding pillar is become scattered light, reduction lumination of light emitting diode effect;
Internal layer light-guiding pillar and outer light-guiding pillar all have external thread, and the first described light hole and the second light hole are threaded hole; By screwing in the first light hole place of internal layer shell after the screw thread of internal layer light-guiding pillar point glue, making housing and internal layer light-guiding pillar form an entirety, slitless connection, reaching the effect of IP67 high-protection level and printing opacity;
The second light hole place of outer casing will be screwed in after the screw thread of outer light-guiding pillar point glue, housing and outer light-guiding pillar is made to form an entirety, IP67 high-protection level can be reached and high bright light is incident upon outermost layer, reaching desirable display effect, make the accessible display of controller.
Adopt the electric current of spotlight effect obvious high brightness round end light emitting diode and the constant circulation of increasing, the light source of a high brightness, high optically focused is provided.Light-emitting diode luminance and electric current have substantial connection, and under rated current, electric current is more large brighter.Drawn by current formula I=V/R, voltage is certain, and electric current and current-limiting resistance are inversely.The light emitting diode rated current selected is 20mA, and adopt the restriction of image current source circuit to flow through the electric current of light emitting diode at 12mA, now brightness is best, longest-lived, and light efficiency is stablized.
Adopt the outer flat internal layer light-guiding pillar guiding out light source of convex.Internal layer light-guiding pillar one end adopts convex design, calculates its focal length, by light source as this (i.e. focus) position.The scattered light of light source will become directional light by convex surface and enter in light-guiding pillar.The other end of internal layer light-guiding pillar makes smooth interface, and interior parallel light passes perpendicularly through smooth interface, and the outer light-guiding pillar of directive parallel equally, reduces light and conduct the loss caused.
The PC material using guide-lighting efficiency to reach more than 92% makes outer light-guiding pillar.Outer light-guiding pillar adopts seamless minute surface contact with internal layer light-guiding pillar, and the source parallel of internal layer light-guiding pillar collection penetrates outer light-guiding pillar, and then directional light goes directly outer light-guiding pillar top arc shape interface, becomes scattered light, reduces diode displaying effect.
Light-guiding pillar and inside and outside shell also need to do high protective treatment, and hole and the light-guiding pillar of housing installation light-guiding pillar adopt screw thread embedded mode, and the screw thread of light-guiding pillar coats marine glue and screws in, after glue is dry, light-guiding pillar and shell combine together and reach high protection effect.
Claims (10)
1. a guiding device for double casing equipment, is characterized in that, comprises light emitting diode (2) and light-guiding pillar; Double casing equipment has internal layer shell and outer shell, and on the circuit board of LED welding in internal layer shell (5), internal layer shell is provided with the first light hole; The luminous site of light emitting diode, in the inner side of the first light hole, outer casing has the second light hole; The front-end and back-end of light-guiding pillar are inserted in the second light hole and the first light hole respectively; The light that light emitting diode sends conducts through light-guiding pillar and is sent by the second light hole.
2. the guiding device of double casing equipment according to claim 1, is characterized in that, light emitting diode is the direct insertion LED with 2 pins; The pillar (1) for supporting light emitting diode is provided with between the illuminating part of light emitting diode and circuit board.
3. the guiding device of double casing equipment according to claim 1, is characterized in that, described light-guiding pillar is made up of internal layer light-guiding pillar (3) and outer light-guiding pillar (4); Internal layer light-guiding pillar is inserted in the first light hole, and the front end of the second light-guiding pillar is inserted in the second light hole, and the rear end of the second light-guiding pillar and the front end of the first light-guiding pillar offset.
4. the guiding device of double casing equipment according to claim 3, is characterized in that, internal layer light-guiding pillar and outer light-guiding pillar all have one for spacing annular edge edge.
5. the guiding device of double casing equipment according to claim 3, is characterized in that, the front end of internal layer light-guiding pillar is convex lens.
6. the guiding device of double casing equipment according to claim 3, is characterized in that, the front end of outer light-guiding pillar is sphere or ellipsoid, and protruding from the second light hole.
7. a light-guiding method for double casing equipment, is characterized in that, adopts the guiding device of double casing equipment according to claim 1; The light sent by light emitting diode by light-guiding pillar is transmitted to outer casing and sends from the second light hole of outer casing.
8. the light-guiding method of double casing equipment according to claim 7, is characterized in that, light emitting diode is the direct insertion LED with 2 pins; The pillar (1) for supporting light emitting diode is provided with between the illuminating part of light emitting diode and circuit board; Make light emitting diode more firm by shore supports light emitting diode.
9. the light-guiding method of double casing equipment according to claim 8, is characterized in that, described light-guiding pillar is made up of internal layer light-guiding pillar (3) and outer light-guiding pillar (4); Internal layer light-guiding pillar is inserted in the first light hole, and the front end of the second light-guiding pillar is inserted in the second light hole, and the rear end of the second light-guiding pillar and the front end of the first light-guiding pillar offset; Internal layer light-guiding pillar and outer light-guiding pillar all have one for spacing annular edge edge; The annular edge of outer light-guiding pillar is along being used for preventing outer light-guiding pillar from outwards being deviate from by the second light hole; The annular edge of internal layer light-guiding pillar is along being used for preventing internal layer light-guiding pillar from inwardly being deviate from by the first light hole.
10. the light-guiding method of double casing equipment according to claim 8 or claim 9, it is characterized in that, the front end of internal layer light-guiding pillar is convex lens, conducts in outer light-guiding pillar for the scattered light sent of light emitting diode is transformed into directional light;
The front end of outer light-guiding pillar is sphere or ellipsoid, and protruding from the second light hole, for skin is guide-lighting
Directional light in post becomes scattered light and externally sends in space, reduction lumination of light emitting diode effect;
Internal layer light-guiding pillar and outer light-guiding pillar all have external thread, and the first described light hole and the second light hole are threaded hole; By screwing in the first light hole place of internal layer shell after the screw thread of internal layer light-guiding pillar point glue, housing and internal layer light-guiding pillar is made to form an entirety, slitless connection;
By screwing in the second light hole place of outer casing after the screw thread of outer light-guiding pillar point glue, housing and outer light-guiding pillar is made to form an entirety.
Priority Applications (1)
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CN201510887709.2A CN105353457A (en) | 2015-12-07 | 2015-12-07 | Light guide apparatus and method of double-layer housing equipment |
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CN201510887709.2A CN105353457A (en) | 2015-12-07 | 2015-12-07 | Light guide apparatus and method of double-layer housing equipment |
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CN201510887709.2A Pending CN105353457A (en) | 2015-12-07 | 2015-12-07 | Light guide apparatus and method of double-layer housing equipment |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106354138A (en) * | 2016-10-14 | 2017-01-25 | 深圳市优必选科技有限公司 | Touch sensing module and robot |
CN107945669B (en) * | 2016-10-13 | 2019-11-15 | 新谱光科技股份有限公司 | Traffic indicates billboard |
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CN201611070U (en) * | 2010-01-26 | 2010-10-20 | 力博特公司 | LED lamp board cage and LED device |
CN202712882U (en) * | 2012-03-07 | 2013-01-30 | 深圳市澎湃智恒科技有限公司 | Mobile power supply |
CN202998640U (en) * | 2012-10-31 | 2013-06-12 | 欧姆龙(广州)汽车电子有限公司 | Electronic device base pin fixing structure |
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CN103035303A (en) * | 2012-12-31 | 2013-04-10 | 马瑞利汽车电子(广州)有限公司 | Pointer structure of instrument panel |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN107945669B (en) * | 2016-10-13 | 2019-11-15 | 新谱光科技股份有限公司 | Traffic indicates billboard |
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