CN110319380B - LED decorative lamp - Google Patents
LED decorative lamp Download PDFInfo
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- CN110319380B CN110319380B CN201910544520.1A CN201910544520A CN110319380B CN 110319380 B CN110319380 B CN 110319380B CN 201910544520 A CN201910544520 A CN 201910544520A CN 110319380 B CN110319380 B CN 110319380B
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- lamp
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
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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
- F21V19/02—Fastening of light sources or lamp holders with provision for adjustment, e.g. for focusing
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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
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/002—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips making direct electrical contact, e.g. by piercing
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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]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention provides an LED decorative lamp, which comprises a lamp holder, a connecting screw rod, a driving assembly, two conductive blocks, two spiral conductive sheets, an outer cover and a lamp body, wherein the lamp holder is arranged on the lamp holder; the extending direction of the connecting screw is parallel to the X axis, one spiral conducting strip covers the thread groove of the connecting screw, and the other spiral conducting strip covers the thread tooth of the connecting screw; the lamp holder is provided with a threaded hole matched with the connecting screw rod, the two conductive blocks are arranged at the hole opening of the threaded hole at intervals and are respectively and electrically connected with the two spiral conductive sheets, and the two conductive blocks are electrically connected with the driving assembly; the lamp body is arranged on the connecting screw rod and exposed out of the lamp holder, and the lamp body is electrically connected with the two spiral conducting strips; the outer cover surrounds the connecting screw rod and is movably connected with the lamp cap, and the outer cover can move along the X axis relative to the lamp cap to partially or completely cover the connecting screw rod. The LED decorative lamp provided by the invention has the advantages of simple structure, low cost, convenient operation of adjusting structure and high safety performance.
Description
Technical Field
The invention belongs to the technical field of illumination, and particularly relates to an LED decorative lamp.
Background
Light Emitting Diodes (LEDs) have been globally acknowledged as the most efficient artificial lighting technology, having the advantages of long lifetime, low energy consumption, etc., along with the development of LED technology, the performance of LED light sources is better and better, the structure is more and more various, not only having the function of lighting, but also serving as ornaments to create atmosphere in many times.
However, LED lamps (LED decorative lamps) for decoration have been developed to date, and most of them have a single external structure, and the structure is usually not adjustable; the lamp is only applicable to a specific environment, lamps with different structures need to be replaced on other occasions, although the LED decorative lamp with a part of structures adjustable is also available on the market, the structure is very complex, the material cost and the processing cost are high, the operation of the adjusting structure is difficult, and sometimes the risk of short circuit caused by the exposure of the conducting structure exists.
Disclosure of Invention
The invention aims to provide an LED decorative lamp to solve the technical problems that the current LED decorative lamp structure is difficult to adjust and operate and has potential safety hazards.
In order to achieve the purpose, the invention adopts the technical scheme that: the LED decorative lamp comprises a lamp cap, a connecting screw rod, a driving assembly, two conductive blocks, two spiral conductive sheets, an outer cover and a lamp body;
the extending direction of the connecting screw is parallel to the X axis, one spiral conducting strip covers the thread groove of the connecting screw, and the other spiral conducting strip covers the thread tooth of the connecting screw;
the lamp cap is provided with a threaded hole matched with the connecting screw rod, the two conductive blocks are arranged at the hole opening of the threaded hole at intervals and are respectively and electrically connected with the two spiral conductive sheets, and the two conductive blocks are electrically connected with the driving assembly;
the lamp body is arranged on the connecting screw rod and exposed out of the lamp holder, and the lamp body is electrically connected with the two spiral conducting strips;
the outer cover surrounds the connecting screw rod and is movably connected with the lamp head, and the outer cover can move along the X axis relative to the lamp head so as to partially or completely cover the connecting screw rod.
Furthermore, the driving assembly comprises a power line and a circuit board welded with electrical components, and the circuit board is electrically connected with the two conductive blocks through the power line.
Furthermore, the lamp body comprises a lamp bead component arranged at the end part of the connecting screw rod and a lamp shade connected with the connecting screw rod and covering and sealing the lamp bead component; the lamp bead component is electrically connected with the two spiral conducting strips.
Further, lamp pearl subassembly includes a plurality of LED chips, a plurality of phosphor powder glue film, a plurality of printing opacity glue film, support and insulating glue film, the support has relative first side and the second side that sets up, the second side paste lean on in connecting screw, each the LED chip sets up the first side of support, insulating glue film covers the first side do not set up the region of LED chip, it is a plurality of the phosphor powder glue film covers each one-to-one the light-emitting surface of LED chip, it is a plurality of the printing opacity glue film covers each one-to-one the surface of phosphor powder glue film.
Further, the lamp bead component also comprises a reflecting layer, the reflecting layer covers the surface of the insulating glue layer, and the surface of the reflecting layer is provided with a plurality of bulges and depressions.
Further, the second side surface is covered with a heat dissipation coating.
Further, the LED chips comprise blue LED chips and green LED chips, and the fluorescent powder glue layer is formed by mixing red fluorescent powder and packaging glue and then baking and curing the mixed red fluorescent powder and packaging glue.
Further, the excitation wavelength of the blue LED chip is 440nm-470nm, the excitation wavelength of the green LED chip is 500nm-545nm, and the excitation wavelength of the red fluorescent powder is 620nm-650 nm.
Furthermore, offer on the lamp holder and encircle the screw hole and along the slot that the X axle extends to a plurality of ring groove that centers on the screw hole, each ring groove all with the slot intercommunication, and follow the even interval distribution of X axle, the dustcoat is inserted and is located in the slot, and can stretch into wantonly in the slot with the lamp holder forms the joint cooperation.
Furthermore, the outer cover comprises a cover body and a clamping head connected to one end of the cover body; the cover body reaches the dop is the elastic component, the cover body activity set up in the slot to can partly or cover completely connecting screw, the dop can be in under the drive of cover body stretch into arbitrary insert in the annular draw-in groove and with the lamp holder forms the joint cooperation.
The embodiment of the invention has the following beneficial effects:
when the LED decorative lamp is installed, the connecting screw rod is screwed into the threaded hole, the spiral conducting strips on the thread teeth of the connecting screw rod and in the threaded groove are respectively contacted with the two conducting blocks for conducting, so that a power supply is switched on, and the lamp body is lightened; the connecting screw rod can be partially or completely covered by adjusting the relative position of the outer cover and the lamp cap, so that the possibility of the connecting screw rod being affected with damp and dust can be reduced, the short circuit risk is reduced to improve the safety performance, and the secondary adjustment of an external structure can be realized; moreover, the LED decorative lamp provided by the invention has the advantages of simple structure, low material consumption and processing cost, and very convenient operation.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic front view of an LED decorative lamp according to an embodiment of the present invention;
FIG. 2 is a schematic top view of the LED decorative lamp of FIG. 1;
FIG. 3 is a schematic sectional view taken along line A-A in FIG. 2;
FIG. 4 is an enlarged schematic view of portion B of FIG. 3;
FIG. 5 is a schematic cross-sectional view of the cap and the housing used in the LED decoration of FIG. 1;
fig. 6 is a schematic structural view of a lamp body and a connecting screw rod adopted in the LED decoration in fig. 1.
Wherein, in the figures, the respective reference numerals:
10. an LED decorative lamp;
100. a lamp cap; 110. a threaded hole; 120. a slot; 130. an annular neck;
200. a lamp body; 210. a lamp bead assembly; 220. a lamp shade; 211. an LED chip; 212. a fluorescent powder glue layer; 213. a light-transmitting adhesive layer; 214. an insulating glue layer; 215. a reflective layer; 216. a support;
300. connecting a screw rod;
400. a conductive block;
500. a spiral conducting strip;
600. a housing; 610. a cover body; 620. clamping a head;
700. a drive assembly; 710. a circuit board; 720. a power line.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, the X-axis is an arrow shown in fig. 1, and is parallel to the extending direction of the connecting screw 300.
Referring to fig. 1 to 3 and fig. 6 together, the LED decorative lamp 10 provided by the present invention will now be described. The LED decorative lamp 10 includes a lamp cap 100, a lamp body 200, a connecting screw 300, two conductive blocks 400, two spiral conductive strips 500, an outer cover 600 and a driving assembly 700.
The lamp cap 100 has a threaded hole 110, the connection screw 300 is adapted to the threaded hole 110, that is, the connection screw 300 can be screwed into or out of the threaded hole 110, and the lamp body 200 is connected to one end of the connection screw 300 and exposed out of the lamp body 200, that is, in the process of screwing the connection screw 300 into or out of the threaded hole 110, the lamp body 200 is always outside the lamp cap 100 and does not move into the lamp cap 100, here, the extending direction of the connection screw 300 is parallel to the X axis, that is, in the direction parallel to the X axis, the distance between the lamp body 200 and the lamp cap 100 is variable, and the length of the connection screw 300 exposed out of the lamp cap 100 is also variable.
Moreover, one of the spiral conducting strips 500 is covered in the thread groove of the connecting screw 300, and the other spiral conducting strip 500 is covered on the thread tooth of the connecting screw 300; the two conductive blocks 400 are arranged at the openings of the threaded holes 110 at intervals, and the two conductive blocks 400 are electrically connected with the two spiral conductive strips 500 respectively; the two conductive blocks 400 are electrically connected to the driving element 700, the two spiral conductive strips 500 are electrically connected to the lamp body 200, and the driving element 700 is connected to an external power source. Therefore, when the LED decorative lamp 10 is installed, the connecting screw 300 is screwed into the threaded hole 110, the spiral conducting strips 500 on the thread teeth and in the thread grooves of the connecting screw 300 are respectively contacted with the two conducting blocks 400 for conducting electricity, so as to switch on the power supply and light the lamp body 200, no matter how deep the matching distance between the connecting screw 300 and the threaded hole 110 is, the two spiral conducting strips 500 are always contacted with the two conducting blocks 400 respectively, so that the distance between the exposed lamp body 200 and the lamp cap 100 can be adjusted in real time without power failure, thereby presenting different external structures.
Since the spiral conducting strip 500 on the connecting screw 300 is exposed in the adjusting process and the material of the spiral conducting strip 500 is metal, when the LED decorative lamp 10 is applied outdoors, especially, there are phenomena of corrosion and dust covering of the spiral conducting strip 500, and even serious short circuit phenomenon may occur due to moisture erosion, therefore, the outer cover 600 is disposed around the connecting screw 300, the outer cover 600 is in a circular tube shape with openings at both ends, and the extending direction thereof is parallel to the X axis, the outer cover 600 and the lamp body 200 form a movable connection fit, and can move along the X axis direction relative to the lamp cap 100 to partially or completely cover the connecting screw 300, that is, the position of the outer cover 600 in the X axis direction can be adjusted, so that the addition of the outer cover 600 can reduce the risk of dust covering and short circuit, and improve the safety performance of the LED decorative lamp. It is understood that, when the external environment is dry, the user can adjust the position of the housing 600 to completely expose the lamp body 200 and the connection screw 300; of course, the lamp body 200 may be completely exposed and the connection screw 300 may be partially exposed, or the connection screw 300 may be completely covered and only the lamp body 200 may be exposed, as required, or the lamp body 200 may be partially covered, which is not limited herein. Thus, the LED decorative lamp 10 provided by the invention has the advantages of simple structure, low material consumption and processing cost, changeable appearance, low price, convenient operation, greatly optimized user experience and improved safety performance.
Preferably, the connecting screw 300 is a rectangular-toothed screw, but in other embodiments of the present invention, the connecting screw 300 may also be a trapezoidal-toothed screw or a triangular-toothed screw, which is not limited herein.
Further, referring to fig. 3 and fig. 5, as an embodiment of the LED decorative lamp 10 provided by the present invention, a slot 120 surrounding the threaded hole 110 and extending along the X axis and a plurality of ring-shaped slots 130 surrounding the threaded hole 110 are formed on the lamp cap 100, each ring-shaped slot 130 is communicated with the slot 120, and the ring-shaped slots 130 are uniformly distributed at intervals in a direction parallel to the X axis; the outer cap 600 includes a cylindrical cap body 610 and a clamp 620 connected to the top end of the cap body 610, the cap body 610 is an elastic member and movably inserted into the slot 120, and the clamp 620 can be driven by the cap body 610 to extend into any one of the annular slots 130 and form a clamping fit with the lamp holder 100. Specifically, when the user adjusts the position of the lamp body 200 to expose the spiral conducting strip 500, the cap body 610 may be pressed to deform elastically, so as to drive the clamp head 620 to disengage from the circular clamping groove 130, and then the cap body 610 is pushed and pulled to move along the X axis in the slot 120, when the clamp head 620 corresponds to the circular clamping groove 130 located at the proper position, the user releases his hand to restore the deformation of the cap body 610 and the clamp head 620, so that the clamp head 620 extends into the circular clamping groove 130 corresponding to the clamp head 620 at this time to form clamping cooperation with the lamp holder 100 again, and at this time, the secondary adjustment of the external structure of the LED decorative lamp 10 is completed.
Further, referring to fig. 3 and fig. 5, as an embodiment of the LED decorative lamp 10 provided by the present invention, the cover body 610 and the clip 620 are preferably elastic silicone pieces, and more preferably transparent elastic silicone pieces. The clip 620 is integrally formed with the boot body 610.
Further, referring to fig. 3 and fig. 5, as an embodiment of the LED decorative lamp 10 provided by the present invention, the driving assembly 700 includes a circuit board 710 welded with electrical components and a power cord 720, the circuit board 710 is disposed in the lamp cap 100, and the circuit board 710 is electrically connected to the two conductive blocks 400 through the power cord 720. Of course, the circuit board 710 may also be electrically connected to the two conductive bumps 400 by other methods, such as a metal connecting plate, a conductive elastic sheet, etc., which are not limited herein.
Further, referring to fig. 3 to fig. 4, as an embodiment of the LED decorative lamp 10 provided by the present invention, the lamp body 200 includes a lamp bead component 210 disposed at an end of the connecting screw 300, and a lampshade 220 connected to the connecting screw 300 and covering the lamp bead component 210, wherein the lamp bead component 210 is electrically connected to the two spiral conductive strips 500. The lampshade 220 is mainly used for protection and decoration, and may be a light-transmitting rigid member or a light-transmitting flexible member, which is not limited herein.
Further, referring to fig. 3 to fig. 4 together, as a specific embodiment of the LED decorative lamp 10 provided by the present invention, the lamp bead assembly 210 includes a plurality of LED chips 211, a plurality of phosphor glue layers 212, a plurality of light-transmitting glue layers 213, a support 216 and an insulating glue layer 214, the support 216 is in a planar plate shape and has a first side surface and a second side surface which are oppositely arranged, the second side surface is attached to the end surface of the connecting screw rod 300 through an AB glue, each LED chip 211 is arranged on the first side surface of the support 216, and the insulating glue layer 214 covers an area of the first side surface where the LED chip 211 is not arranged, so that the heat dissipation of the LED lamp beads is facilitated; the plurality of phosphor glue layers 212 are correspondingly covered on the light emitting surface of each LED chip 211, and the plurality of light-transmitting glue layers 213 are correspondingly covered on the surface of each phosphor glue layer 212.
Specifically, the first side surface is provided with grooves having the same number as the LED chips 211, the LED chips 211 are respectively located in the grooves and are all connected to the support 216, preferably, the LED chips 211 and the support 216 may be connected by using a die attach adhesive, and the positive lead and the negative lead of each LED chip 211 are respectively electrically connected to the two spiral conductive sheets 500; the phosphor glue layers 212 disposed on the LED chips 211 are all ellipsoidal, so that the light emitting area of the light source can be increased, and each phosphor glue layer 212 can cover all the light emitting directions of the corresponding LED chip 211, particularly, in this embodiment, the phosphor glue layers 212 are disposed on the surface of the LED chip 211 by dispensing; the light-transmitting adhesive layer 213 covers the phosphor adhesive layer 212 and has a hemispherical shape or a semi-ellipsoidal shape, and the light-transmitting adhesive layer 213 may be replaced by a light-transmitting glass, which is not limited herein.
Further, referring to fig. 3 to fig. 4, as an embodiment of the LED decorative lamp 10 provided by the present invention, the lamp bead assembly 210 further includes a reflective layer 215, the reflective layer 215 covers the surface of the insulating adhesive layer 214, and the surface of the reflective layer 215 has a plurality of protrusions and depressions. Thus, the light rays are reflected for multiple times, and the irradiation area of the LED chip 211 is increased.
Further, referring to fig. 3 to fig. 4, as an embodiment of the LED decorative lamp 10 provided by the present invention, a heat dissipation coating is further covered on the second side surface of the bracket 216. In this embodiment, the bracket 216 is made of an aluminum alloy material, and the heat dissipation coating is formed by coating a heat dissipation coating on the second side. Particularly, the heat dissipation coating comprises the following components in parts by weight: 50-100 parts of water-based acrylic resin, 40-50 parts of water-based polyurethane resin, 15-23 parts of water-based bisphenol A unsaturated polyester resin, 2-6 parts of phenolic resin, 20-30 parts of filling reinforcing agent, 0.2-1 part of titanate coupling agent, 1-5 parts of acetone, 2-6 parts of resorcinol, 0.5-1.2 parts of curing agent, 1-1.4 parts of antistatic agent and 1-2 parts of leveling agent. Wherein, the filling reinforcing agent is prepared from polytetrafluoroethylene compound, hollow glass beads and aluminum borate crystal whiskers according to the weight ratio of 25: 2: 5. The polytetrafluoroethylene compound is prepared by adopting the following process: stirring 4kg of thiourea, 40kg of microcrystalline cellulose and 100kg of sodium hydroxide solution with the concentration of 1mol/L for 12min at the stirring temperature of 70 ℃ and the stirring speed of 1100r/min, centrifuging, washing to be neutral, adding 4kg of polytetrafluoroethylene, 1kg of aluminum powder and 3kg of yttrium oxide, mixing, ball-milling for 2h, and drying to obtain the polytetrafluoroethylene composite.
The heat dissipation coating takes water-soluble water-based acrylic resin, water-based polyurethane resin and water-based bisphenol A unsaturated polyester resin as main film forming substances, a coating formed by matching phenolic resin has good adhesion strength, the adhesion strength with an aluminum alloy substrate is extremely high, the film forming substances can reduce the tangential force borne by a polytetrafluoroethylene compound, the polytetrafluoroethylene compound is fully dispersed in a film coating matrix and is compounded with hollow glass beads and aluminum borate whiskers to form a good heat conduction system, and the interaction is realized, so that the coating has better heat conductivity, and the heat dissipation coating is sprayed on the surface of the aluminum alloy substrate, so that the temperature of the surface of the bracket 216 can be greatly reduced, and the cooling effect is obvious.
Further, referring to fig. 3 to 4, as an embodiment of the LED decorative lamp 10 provided by the present invention, the LED chips 211 include a blue LED chip 211 and a green LED chip 211, and the phosphor glue layer 212 is formed by mixing red phosphor and a packaging glue and then baking and curing the mixture. Specifically, the blue LED chip 211 and the red LED chip 211 are mixed with the packaging adhesive by the red phosphor, baked and cured, and then packaged in the groove of the support 216.
Further, referring to fig. 3 and 4, as an embodiment of the LED decorative lamp 10 provided by the present invention, an excitation wavelength of the blue LED chip 211 is 440nm to 470nm, an excitation wavelength of the green LED chip 211 is 500nm to 545nm, an excitation wavelength of the red phosphor is 620nm to 650nm, and the red phosphor is specifically composed of a nitride phosphor, a fluoride phosphor, a KSF phosphor, and a silicate phosphor.
So, blue light LED chip 211, green glow LED chip 211 collocation red phosphor powder make lamp pearl subassembly 210, and some blue light arouses red phosphor powder, and some green glow arouses red phosphor powder, later obtains high colour gamut LED light source through blue light, green glow and ruddiness complex, has higher colour gamut, and the advantage is as follows: the LED light source is obtained by compounding the blue LED chip 211 and the green LED chip 211 with red fluorescent powder, and the color gamut value is up to 100-120%; compared with a quantum dot film and a quantum dot tube, the blue-green double-color chip matched with the red fluorescent powder has the advantages of high stability, low cost and the like while realizing ultrahigh color gamut.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
- LED ornament lamp, its characterized in that: comprises a lamp holder, a connecting screw, a driving component, two conductive blocks, two spiral conductive sheets, an outer cover and a lamp body;the extending direction of the connecting screw is parallel to the X axis, one spiral conducting strip covers the thread groove of the connecting screw, and the other spiral conducting strip covers the thread tooth of the connecting screw;the lamp cap is provided with a threaded hole matched with the connecting screw rod, the two conductive blocks are arranged at the hole opening of the threaded hole at intervals and are respectively and electrically connected with the two spiral conductive sheets, and the two conductive blocks are electrically connected with the driving assembly;the lamp body is arranged on the connecting screw rod and exposed out of the lamp holder, and the lamp body is electrically connected with the two spiral conducting strips;the outer cover surrounds the connecting screw rod and is movably connected with the lamp head, and the outer cover can move along the X axis relative to the lamp head so as to partially or completely cover the connecting screw rod;the lamp body comprises a lamp bead component arranged at the end part of the connecting screw rod and a lamp shade which is connected with the connecting screw rod and covers and seals the lamp bead component; the lamp bead assembly is electrically connected with the two spiral conducting strips;the lamp bead assembly comprises a plurality of LED chips, a plurality of fluorescent powder glue layers, a plurality of light-transmitting glue layers, a support and an insulating glue layer, wherein the support is provided with a first side surface and a second side surface which are arranged oppositely, the second side surface is attached to the connecting screw rod in an attached mode, each LED chip is arranged on the first side surface of the support, the insulating glue layer covers the area, where the LED chips are not arranged, of the first side surface, the plurality of fluorescent powder glue layers cover the light-emitting surface of each LED chip in a one-to-one corresponding mode, and the plurality of light-transmitting glue layers cover the surface of each fluorescent powder glue layer in a one-to-one corresponding mode;the second side is also covered with a heat dissipation coating, the bracket is made of an aluminum alloy material, the heat dissipation coating is formed by coating a heat dissipation coating on the second side, and the heat dissipation coating comprises the following components in parts by weight: 50-100 parts of water-based acrylic resin, 40-50 parts of water-based polyurethane resin, 15-23 parts of water-based bisphenol A unsaturated polyester resin, 2-6 parts of phenolic resin, 20-30 parts of filling reinforcing agent, 0.2-1 part of titanate coupling agent, 1-5 parts of acetone, 2-6 parts of resorcinol, 0.5-1.2 parts of curing agent, 1-1.4 parts of antistatic agent and 1-2 parts of flatting agent, wherein the filling reinforcing agent is prepared from polytetrafluoroethylene compound, hollow glass beads and aluminum borate crystal according to the weight ratio of 25: 2: 5, the polytetrafluoroethylene compound is prepared by adopting the following process: stirring 4kg of thiourea, 40kg of microcrystalline cellulose and 100kg of sodium hydroxide solution with the concentration of 1mol/L for 12min at the stirring temperature of 70 ℃ and the stirring speed of 1100r/min, centrifuging, washing to be neutral, adding 4kg of polytetrafluoroethylene, 1kg of aluminum powder and 3kg of yttrium oxide, mixing, ball-milling for 2h, and drying to obtain a polytetrafluoroethylene compound;the LED packaging structure comprises a plurality of LED chips, a plurality of packaging glue layers and a plurality of LED chips, wherein the LED chips comprise blue LED chips and green LED chips, and the fluorescent powder glue layers are formed by mixing red fluorescent powder and packaging glue and then baking and curing the mixed red fluorescent powder and packaging glue;the excitation wavelength of the blue light LED chip is 440nm-470nm, the excitation wavelength of the green light LED chip is 500nm-545nm, and the excitation wavelength of the red fluorescent powder is 620nm-650 nm.
- 2. The LED decorative lamp of claim 1, wherein: the driving assembly comprises a power line and a circuit board welded with electrical components, and the circuit board is electrically connected with the two conductive blocks through the power line.
- 3. The LED decorative lamp of claim 1, wherein: the lamp bead component further comprises a reflecting layer, the reflecting layer covers the surface of the insulating glue layer, and the surface of the reflecting layer is provided with a plurality of protrusions and depressions.
- 4. The LED decorative lamp of any one of claims 1 to 3, wherein: the lamp holder is provided with a slot surrounding the threaded hole and extending along an X axis, and a plurality of annular clamping grooves surrounding the threaded hole, the annular clamping grooves are communicated with the slot and distributed along the X axis at even intervals, and the outer cover is inserted into the slot and can extend into any one of the slot to form clamping fit with the lamp holder.
- 5. The LED decorative lamp of claim 4, wherein: the outer cover comprises a cover body and a clamping head connected to one end of the cover body; the cover body reaches the dop is the elastic component, the cover body activity set up in the slot to can partly or cover completely connecting screw, the dop can be in under the drive of cover body stretch into arbitrary in the ring groove and with the lamp holder forms the joint cooperation.
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CN102788330A (en) * | 2011-05-09 | 2012-11-21 | 肯尼斯·S·陈 | Lamp socket |
CN102691917A (en) * | 2012-06-12 | 2012-09-26 | 陈广友 | LED (light-emitting diode) lamp bead |
CN103867914A (en) * | 2012-12-10 | 2014-06-18 | 西安君协光电科技有限公司 | LED lamp |
CN203395652U (en) * | 2013-06-20 | 2014-01-15 | 苏州恒荣节能科技安装工程有限公司 | LED (Light-Emitting Diode) lamp bead |
CN205535184U (en) * | 2016-01-04 | 2016-08-31 | 罗暄 | Zooming electric torch |
CN107420798A (en) * | 2017-08-16 | 2017-12-01 | 广东聚科照明股份有限公司 | A kind of adjustable for height LED exposed lamps of lamp bead |
CN208074889U (en) * | 2018-04-18 | 2018-11-09 | 丘金荣 | A kind of adjustable lampshade of LED light |
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