CN209101075U - A kind of LED desk lamp - Google Patents

Abstract

The utility model discloses a kind of LED desk lamps of LED desk lamp technical field, including heat dissipation base, rotate support rod, telescopic cantilever bar and lamp cap assembly, the bottom of heat dissipation base is provided with cooling mechanism, rotation support rod is vertically located in the top left side of heat dissipation base, rotation support rod is divided into two sections of interconnecting piece of fixed support portion and extension, rotating mechanism is connected between fixed support portion and extension interconnecting piece, telescopic cantilever bar includes fixed link and telescopic rod, the left end of fixed link is hinged with the top for extending interconnecting piece by multi-directional ball hinge, the sidewall bottom interval of fixed link is installed with two groups of sleeve bases, telescopic rod activity is inserted in the inner cavity of two groups of sleeve bases, lamp cap assembly is articulated with the right end of telescopic rod, damping telescopic bar is hingedly provided between the bottom of fixed link and the right side wall of rotating mechanism, the utility model mentions It has supplied a kind of with mainboard heat dissipation, rotation adjusting and lampshade handoff functionality LED desk lamp.

Description

A kind of LED desk lamp

Technical field

The utility model relates to LED desk lamp technical field, specially a kind of LED desk lamp.

Background technique

LED desk lamp is exactly using LED i.e. light emitting diode as the desk lamp of light source, and LED is a kind of solid state semiconductor devices, it It can directly convert electricity to light.Its LED lighting technology used is third generation lighting engineering.LED desk lamp uses the indigo plant generated Light can damage eyes, but also have series of advantages.LED illumination is also known as solid-state lighting, as after incandescent lamp, fluorescent lamp Third generation lighting engineering, have the characteristics that energy-saving and environmental protection, safe and reliable, solid state light emitter is 10 years futures being had an optimistic view of by industry The new type light source for replacing traditional lighting utensil great potential, represents the future of lighting engineering.Develop new solid-state lighting, is not only to shine The revolution in bright field, and meet the requirement of " Resources for construction economizing type and the friendly environment society " of current governmental proposition.

Existing LED desk lamp is found in use in the presence of including following technological deficiency on the market:

1. existing LED desk lamp is due to mostly using greatly plastic shell clad type pedestal, heat conduction and heat radiation performance is poor, makes for a long time With will appear chassis interior temperature increase, be easy to cause aging circuit, mainboard component wear, interface loosen can problem, into And it influences desk lamp service life and even directly contributes fault；

2. most of existing LED desk lamp, due to lacking support rod rotational structure, transformation desk lamp angle is manual by needing Desk lamp lamp body is moved, operation is extremely inconvenient, even if minority possesses rotatable support rod, only passes through the connection of simply socket form Structure, structural strength is low, and stability is poor, is easily damaged, and rotates no paragraph sense, and feel is poor；

3. existing LED desk lamp can only pass through the mild light of driving circuit color-changing due to only having unique type lampshade Power reconciles light, and this light, which reconciles mode, can not change light transmittance and soft degree, for example, by using Transparent lamp shade Desk lamp, even if colour temperature is warmed up, brightness is lower still to feel dazzling；The user that desk lamp is used particularly with long-time damages eyesight Evil is larger.

Based on this, the utility model devises a kind of LED desk lamp, to solve the above problems.

Utility model content

The purpose of this utility model is to provide a kind of LED desk lamps, are made with solving above-mentioned LED desk lamp existing on the market With it is middle discovery there are the problem of.

To achieve the above object, the utility model provides the following technical solutions: a kind of LED desk lamp, including heat dissipation base, rotation Turn support rod, telescopic cantilever bar and lamp cap assembly, the heat dissipation base generally flattened cylindrical shape, the bottom of the heat dissipation base It is provided with cooling mechanism, the rotation support rod is vertically located in the top left side of the heat dissipation base, the rotation support rod It is divided into fixed support portion and extends knockdown two sections of interconnecting piece or more, is connected between the fixed support portion and extension interconnecting piece It is provided with rotating mechanism, the telescopic cantilever bar includes the fixed link and telescopic rod of upper and lower parallel misalignment setting, the fixed link Left end and extend interconnecting piece top be hinged by multi-directional ball hinge, the sidewall bottom interval of the fixed link is installed with two Group sleeve base, the telescopic rod activity be inserted in two groups described in sleeve base inner cavity, the lamp cap assembly is articulated with described flexible The right end of bar is hingedly provided with damping telescopic bar between the bottom of the fixed link and the right side wall of rotating mechanism；

Preferably, the cooling mechanism includes the heat dissipation groove for being opened in heat dissipation base bottom, the top of the heat dissipation groove Portion offers the thermovent inside and outside connection heat dissipation base, is provided with heat sink, the top of the heat sink at the thermovent Portion is provided with main circuit board, and the edge of the heat sink and main circuit board is installed on the heat dissipation groove by studs interval Top.

Preferably, the bottom surface of the heat sink is uniformly densely covered with heat radiating fin, and the heat radiating fin is located at the inner cavity of heat dissipation groove.

Preferably, the rotating mechanism includes the double threaded screw being bolted between fixed support portion and extension interconnecting piece, institute The outer wall for stating double threaded screw is from top to bottom successively arranged with rotation gasket, revoling tube, fixed sleeving and preloading spring, the rotation The outer right wall of pivoted housing pipe and the bottom of damping telescopic bar are hinged, and the bottom of the fixed sleeving passes through preloading spring and fixation The top of support portion is fixedly connected.

Preferably, the revoling tube and fixed sleeving contact jaw end profile are the sinusoidal Wave curved mutually agreed with.

Preferably, the lamp cap assembly includes wick column, and the bottom of the wick column is provided with lamp bead mounting surface, the lamp Surface-mount LED lamp pearl is uniformly densely covered on pearl mounting surface, the outer circumferential walls left and right ends of the wick column symmetrically offer annular cunning Slot, the periphery of annular groove described in two groups rotate and are embedded with lampshade fixing frame, solid between lampshade fixing frame described in two groups Surely it is embedded with cylinder lampshade, the cylinder lampshade is located at the periphery of wick column.

Preferably, the cylinder lampshade is consistent by transparent arc plate, frosted arc plate and three kinds of shapes of milky white arc plate Circumferentially array-like is composed arc plate, and one of the transparent arc plate, frosted arc plate and milky white arc plate are located at LED The underface of patch lamp bead.

Preferably, the embedded bottom of the heat dissipation base is provided with counter weight strip, and the counter weight strip bilateral symmetry is distributed.

Compared with prior art, the utility model has the beneficial effects that

1. cooling mechanism, and heat sink and main circuit in cooling mechanism is arranged in the bottom of heat dissipation base in the utility model Plate is between the upper and lower every installation, and the bottom surface of heat sink is uniformly densely covered with heat radiating fin, when desk lamp work long hours main circuit board generate When heat, heat sink can absorb heat dissipation base internal heat as good conductive structure in time, and pass through heat radiating fin to heat dissipation Chassis outer side is quickly spread, and realizes the effect of cooling down, guarantees that internal main circuit board and wire rod can be in lower temperature ring In border, preferably prolong the service life；

2. being connected with rotating mechanism, fixed link and extension between the utility model fixed support portion and extension interconnecting piece Interconnecting piece is hinged by multi-directional ball hinge, and damping telescopic bar, use process are hinged between fixed link and rotating mechanism In can directly stir desk lamp fixed support portion any of the above position, i.e., convertible lamp cap assembly direction is easy to operate, and rotates The setting of gasket play the role of it is wear-resistant, be beneficial to extend mechanism durability degree, be hardly damaged, revoling tube and fixed sleeving contact Holding end profile is the sinusoidal Wave curved mutually agreed with, when the rotation of lamp cap assembly, can form paragraph sense, plays angle holding The effect promoted with feel；

3. the cylinder lampshade in the utility model lamp cap assembly is by transparent arc plate, frosted arc plate and milky white arc plate three Circumferentially array-like is composed the kind consistent arc plate of shape, does not have to convert by rotor lampshade under use environment Conversion between different type arc plate achievable direct light corresponding with Surface-mount LED lamp pearl and diffused light, plays effective shield Eye effect.

Detailed description of the invention

In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention, For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings Other attached drawings.

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model cooling mechanism structural schematic diagram；

Fig. 3 is the utility model rotating mechanism structural schematic diagram；

Fig. 4 is the utility model lamp cap assembly structure schematic diagram；

Fig. 5 is the utility model lamp cap assembly structure side view.

In attached drawing, parts list represented by the reference numerals are as follows:

1- heat dissipation base, 2- rotation support rod, 201- fixed support portion, 202- extension interconnecting piece, 3- telescopic cantilever bar, 301- fixed link, 302- telescopic rod, 303- sleeve base, 4- lamp cap assembly, 401- wick column, 402-LED patch lamp bead, 403- ring Shape sliding slot, 404- lampshade fixing frame, 405- cylinder lampshade, the transparent arc plate of 406-, 407- frosted arc plate, the milky white circular arc of 408- Piece, 5- cooling mechanism, 501- heat dissipation groove, 502- thermovent, 503- heat sink, 504- main circuit board, 505- studs, 506- heat radiating fin, 6- rotating mechanism, 601- double threaded screw, 602- rotation gasket, 603- revoling tube, 604- fixed sleeving, 605- preloading spring, 7- multi-directional ball hinge, 8- damping telescopic bar, 9- counter weight strip.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts All other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-5 is please referred to, the utility model provides a kind of technical solution: a kind of LED desk lamp, including heat dissipation base 1, rotation Support rod 2, telescopic cantilever bar 3 and lamp cap assembly 4, the generally flattened cylindrical shape of heat dissipation base 1, the bottom setting of heat dissipation base 1 There is cooling mechanism 5, rotation support rod 2 is vertically located in the top left side of heat dissipation base 1, and rotation support rod 2 divides for fixed support Portion 201 and knockdown two sections of about 202 interconnecting piece of extension, connect setting between fixed support portion 201 and extension interconnecting piece 202 There is rotating mechanism 6, telescopic cantilever bar 3 includes the fixed link 301 and telescopic rod 302 of upper and lower parallel misalignment setting, fixed link 301 Left end is hinged with the top for extending interconnecting piece 202 by multi-directional ball hinge 7, and the sidewall bottom interval of fixed link 301 is installed with Two groups of sleeve bases 303,302 activity of telescopic rod are inserted in the inner cavity of two groups of sleeve bases 303, and lamp cap assembly 4 is articulated with telescopic rod 302 Right end, be hingedly provided with damping telescopic bar 8 between the bottom of fixed link 301 and the right side wall of rotating mechanism 6；

Wherein, cooling mechanism 5 includes the heat dissipation groove 501 for being opened in 1 bottom of heat dissipation base, the top for the groove 501 that radiates The thermovent 502 inside and outside connection heat dissipation base 1 is offered, is provided with heat sink 503 at thermovent 502, heat sink 503 Top is provided with main circuit board 504, and the edge of heat sink 503 and main circuit board 504 is installed on scattered by the interval of studs 505 The effect of cooling down is realized at the top of hot groove 501, guarantees that internal main circuit board 504 and wire rod can be in lower temperature In environment, preferably prolong the service life；The bottom surface of heat sink 503 is uniformly densely covered with heat radiating fin 506, and heat radiating fin 506, which is located at, to be dissipated The inner cavity of hot groove 501 is quickly spread by heat radiating fin 506 to 1 outside of heat dissipation base；Rotating mechanism 6 includes being bolted in fixation Double threaded screw 601 between support portion 201 and extension interconnecting piece 202, the outer wall of double threaded screw 601 are from top to bottom successively arranged with Rotate gasket 602, revoling tube 603, fixed sleeving 604 and preloading spring 605, the outer right wall and damping of revoling tube 603 The bottom of telescopic rod 8 is hinged, and the bottom of fixed sleeving 604 is fixed by preloading spring 605 and the top of fixed support portion 201 Connection, it is easy to operate, it is beneficial to extend mechanism durability degree, is hardly damaged；604 contact jaw end of revoling tube 603 and fixed sleeving Facial contour is the sinusoidal Wave curved mutually agreed with, when lamp cap assembly 4 rotate when, paragraph sense can be formed, play angle keep and The effect that feel is promoted；Lamp cap assembly 4 includes wick column 401, and the bottom of wick column 401 is provided with lamp bead mounting surface, lamp bead peace Surface-mount LED lamp pearl 402 is uniformly densely covered on dress face, the outer circumferential walls left and right ends of wick column 401 symmetrically offer annular groove 403, the periphery of two groups of annular grooves 403, which rotates, is embedded with lampshade fixing frame 404, between two groups of lampshade fixing frames 404 It is fixedly embedded at cylinder lampshade 405, cylinder lampshade 405 is located at the periphery of wick column 401；Cylinder lampshade 405 is by transparent circle Circumferentially array-like is composed for 408 3 kinds of arcs 406, frosted arc plate 407 and milky white arc plate consistent arc plates of shape, One of transparent arc plate 406, frosted arc plate 407 and milky white arc plate 408 are located at the underface of Surface-mount LED lamp pearl 402；It can Different type arc plate achievable direct light corresponding with Surface-mount LED lamp pearl 402 and diffusion are converted by rotor lampshade 405 Effective eyeshield is played the role of in conversion between light；The embedded bottom of heat dissipation base 1 is provided with counter weight strip 9, counter weight strip 9 or so It is symmetrical, play the role of overturning-preventing.

One concrete application of the present embodiment are as follows:

Embodiment 1:

Cooling mechanism 5, and the heat sink 503 in cooling mechanism 5 and master is arranged in the bottom of heat dissipation base 1 in the utility model Circuit board 504 is between the upper and lower every installation, and the bottom surface of heat sink 503 is uniformly densely covered with heat radiating fin 506, to imitate convenient for improving heat dissipation Rate, heat radiating fin 506 can be used verdigris alloy and be made, and the fin spacing of heat radiating fin 506 keeps 3-5mm, as air passing space, Also, between 503 and 504 can be filled heat-conducting silicone grease, promote heat conduction, when desk lamp work long hours main circuit board 504 generate When heat, heat sink 503 can absorb 1 internal heat of heat dissipation base as good conductive structure in time, and pass through heat radiating fin 506 To the quickly diffusion of the outside of heat dissipation base 1, realize the effect of cooling down, guarantee internal main circuit board 504 and wire rod can in compared with In low temperature environment, preferably prolong the service life；

Embodiment 2:

Rotating mechanism 6, fixed link are connected between the utility model fixed support portion 201 and extension interconnecting piece 202 301 are hinged with extension interconnecting piece 202 by multi-directional ball hinge 7, and resistance is hinged between fixed link 301 and rotating mechanism 6 Buddhist nun's telescopic rod 8 can directly stir 201 any of the above position of desk lamp fixed support portion, i.e., convertible lamp cap assembly 4 in use process Direction, it is easy to operate, and the setting for rotating gasket 602 is played the role of wear-resistant, is beneficial to extend mechanism durability degree, not rapid wear Bad, revoling tube 603 and 604 contact jaw end profile of fixed sleeving are the sinusoidal Wave curved mutually agreed with, when lamp cap assembly 4 When rotation, paragraph sense can be formed, plays the role of angle and keeps being promoted with feel, specifically, when 4 are struck around 2 rotation, 603 and 604 generations are differential, acted on by means of 605 jacking, and 604 have upward top lift, abut 603 and 604 holdings, In this way, the wave tooth of bottom end need to overcome 604 top wave tooth inhibitions to be rotated, two sides wave tooth when 603 rotation When tooth top replaces abutting variation with tooth root, rotation paragraph sense is formed, meanwhile, when loosing one's grip, 604 can play rotation limitation to 603 Effect, so that 4 are able to maintain current angular, will not rock, and 8 have damping characteristic, have flexible self- recoverage characteristic, in use, Can be pressed down 4, after loosing one's grip due to 8 damping rebound effect, can rebound elemental height, convenient for the short time closely illumination make With；In addition, 4 can stretch along the reversed pull change of 302 length since 302 activity of telescopic rod is inserted in the inner cavity of two groups of sleeve bases 303 Long amount, illuminates convenient for different location；

Embodiment 3:

Cylinder lampshade 405 in the utility model lamp cap assembly 4 is by transparent arc plate 406, frosted arc plate 407 and milky white Circumferentially array-like is composed 408 3 kinds of consistent arc plates of shape of arc plate, does not have to that rotational circle can be passed through under use environment Downlight cover 405 converts to be turned between different type arc plate achievable direct light corresponding with Surface-mount LED lamp pearl 402 and diffused light It changes, plays the role of effective eyeshield；Specifically, it need to only can be manually rotated 405 when switching to rotate around 401 central axes, wherein such as Shown in Fig. 5,402 light crevice projection angle α of Surface-mount LED lamp pearl is 120 degree, so that 402 throw light of Surface-mount LED lamp pearl is only capable of simultaneously It is corresponding with one of three groups of arc plates, when transparent arc plate 406 is corresponding with Surface-mount LED lamp pearl 402, the light of light source sending It is unobstructed, it is direct light, light transmittance highest, local luminance is high, is suitable for floodlighting use environment, when frosted arc plate 407 When corresponding with Surface-mount LED lamp pearl 402, light transmittance is moderate, light is soft, is suitble to office, study and reads, when milky white arc plate 408 it is corresponding with Surface-mount LED lamp pearl 402 when, can't see light source, light transmittance is minimum, be diffused light, light is soft, is suitable as Night-light uses.

In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the utility model In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples In can be combined in any suitable manner.

The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment.Obviously, according to this theory The content of bright book can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably The principles of the present invention and practical application are explained, so that skilled artisan be enable to better understand and utilize this Utility model.The utility model is limited only by the claims and their full scope and equivalents.

Claims (8)

1. a kind of LED desk lamp, including heat dissipation base (1), rotation support rod (2), telescopic cantilever bar (3) and lamp cap assembly (4), Be characterized in that: the heat dissipation base (1) generally flattened cylindrical shape, the bottom of the heat dissipation base (1) are provided with cooling mechanism (5), rotation support rod (2) is vertically located in the top left side of the heat dissipation base (1), the rotation support rod (2) point For fixed support portion (201) and extend knockdown two sections up and down of interconnecting piece (202), the fixed support portion (201) and extension It is connected between interconnecting piece (202) rotating mechanism (6), the telescopic cantilever bar (3) includes what upper and lower parallel misalignment was arranged Fixed link (301) and telescopic rod (302), the left end of the fixed link (301) pass through universal with the top for extending interconnecting piece (202) Spherical hinge (7) is hinged, and the sidewall bottom interval of the fixed link (301) is installed with two groups of sleeve bases (303), the telescopic rod (302) activity be inserted in two groups described in sleeve base (303) inner cavity, the lamp cap assembly (4) is articulated with the telescopic rod (302) Right end, be hingedly provided with damping telescopic bar between the bottom of the fixed link (301) and the right side wall of rotating mechanism (6) (8)。

2. a kind of LED desk lamp according to claim 1, it is characterised in that: the cooling mechanism (5) includes being opened in heat dissipation The heat dissipation groove (501) of pedestal (1) bottom offers at the top of the heat dissipation groove (501) two inside and outside connection heat dissipation base (1) The thermovent (502) of side is provided with heat sink (503) at the thermovent (502), the top setting of the heat sink (503) Have main circuit board (504), the edge of the heat sink (503) and main circuit board (504) passes through the installation of studs (505) interval In the top of heat dissipation groove (501).

3. a kind of LED desk lamp according to claim 2, it is characterised in that: uniformly gather the bottom surface of the heat sink (503) Have heat radiating fin (506), the heat radiating fin (506) is located at the inner cavity of heat dissipation groove (501).

4. a kind of LED desk lamp according to claim 1, it is characterised in that: the rotating mechanism (6) includes being bolted in fixation Support portion (201) and extend interconnecting piece (202) between double threaded screw (601), the outer wall of the double threaded screw (601) by upper and Under be successively arranged with rotation gasket (602), revoling tube (603), fixed sleeving (604) and preloading spring (605), the rotation The outer right wall of casing (603) and the bottom of damping telescopic bar (8) are hinged, and the bottom of the fixed sleeving (604) passes through pre- Tight spring (605) is fixedly connected with the top of fixed support portion (201).

5. a kind of LED desk lamp according to claim 4, it is characterised in that: the revoling tube (603) and fixed sleeving (604) contact jaw end profile is the sinusoidal Wave curved mutually agreed with.

6. a kind of LED desk lamp according to claim 1, it is characterised in that: the lamp cap assembly (4) includes wick column (401), the bottom of the wick column (401) is provided with lamp bead mounting surface, is uniformly densely covered with LED patch on the lamp bead mounting surface The outer circumferential walls left and right ends of lamp bead (402), the wick column (401) symmetrically offer annular groove (403), ring described in two groups The periphery of shape sliding slot (403), which rotates, to be embedded with lampshade fixing frame (404), between lampshade fixing frame described in two groups (404) It is fixedly embedded at cylinder lampshade (405), the cylinder lampshade (405) is located at the periphery of wick column (401).

7. a kind of LED desk lamp according to claim 6, it is characterised in that: the cylinder lampshade (405) is by transparent arc plate (406), (408) three kinds of consistent arc plates of shape of frosted arc plate (407) and milky white arc plate circumferentially array-like combination and At one of the transparent arc plate (406), frosted arc plate (407) and milky white arc plate (408) are located at Surface-mount LED lamp pearl (402) underface.

8. a kind of LED desk lamp according to claim 1, it is characterised in that: the embedded bottom of the heat dissipation base (1) is arranged Have counter weight strip (9), counter weight strip (9) bilateral symmetry is distributed.