A kind of LEDbulb lamp
Technical field
The utility model relates to technical field of LED illumination, particularly relates to a kind of LEDbulb lamp.
Background technology
Light emitting diode (Light-Emitting Diode, LED) be semiconductor subassembly, the material of its luminescence chip mainly uses the compound of chemical element, such as gallium phosphide (GaP) or GaAs (GaAs), principle of luminosity converts electrical energy into luminous energy, because the life-span of LED reaches more than 100,000 hours, and LED has that reaction speed is fast, volume is little, power saving, low stain, high-reliability, be applicable to the advantages such as volume production, so become the nova of illumination market soon.
Along with the demand of energy conservation and environmental protection, LED is utilized to provide the light fixture of illumination to become world trend in construction people daily life, in current technology, usually LED can be arranged on various carrier (such as printed circuit board (PCB)), make lighting unit; But LED can produce a large amount of heat energy when producing light source simultaneously, therefore in above-mentioned lighting unit, the heat energy that LED produces often effectively cannot be arranged and be dissipated to outside device, thus causes the luminous efficacy of LED to reduce; For LED bulb lamp, produce overheated phenomenon in order to avoid during LED luminescence, radiator structure can be configured on LED bulb lamp, if but the efficiency of LED bulb lamp radiator structure is not good, the generation light decay or look that make LED bulb lamp are become, allows the life-span of LED bulb lamp significantly reduce; Therefore the radiating efficiency how increasing LED bulb lamp has become an important technical task to the reliability improving use.
Utility model content
In order to solve the problems of the technologies described above, technical solutions of the utility model provide a kind of LEDbulb lamp, by arranging the double radiation structure of radiator heat-dissipation and passage heat radiation, effectively can improve the radiating efficiency of LEDbulb lamp, improving the service life of LEDbulb lamp.
In order to achieve the above object, a kind of LEDbulb lamp of the present utility model, comprise connector, housing, LED light source module, radiator, circuit board and lampshade, described connector is connected with housing upper, there is in housing an accommodation space, described housing surrounding offers a plurality of radiating groove, described radiator is fixed in the accommodation space of housing, described radiator comprises a heat radiating cup, it is arc surface bottom surface bottom described heat radiating cup, described LED light source module comprises substrate and a plurality of LED chip, described substrate is the arc surface substrate being arranged on housing bottom, described LED chip is evenly sticked on arc surface substrate, gas channel is formed between described arc surface bottom surface and arc surface substrate, described gas channel is communicated with hull outside by pore on housing, the both sides described substrate being positioned at each LED chip offer pod apertures, described pod apertures is connected with gas channel, circuit board to be arranged in connector and to be electrically connected with LED light source module.
Further, described arc surface bottom surface offers a plurality of louvre.
Further, the depth of section of described gas channel central region is lower than the cross-sectional height of the side area of described gas channel, by this design, after air draught is entered from the pore of housing side, first enter into comparatively broad gas channel side area, and then to the flowing of comparatively narrow gas channel central region, make the pressure of air-flow become larger in central region, it is taken away heat ability and gets a promotion, and contributes to the raising of heat dispersion.
Further, a center column is provided with in accommodation space in described housing, described center column is metal center cylinder, its one end be arranged on connector and be connected, the other end is connected with the arc surface bottom surface of heat radiating cup, be equipped with wire in described center column, described wire is used for the electric connection of realizing circuit plate and LED light source module.Adopt metal center cylinder parcel wire, realize being electrically connected, avoid and directly adopt exposed wire and easily damage, effective stability ensureing to be electrically connected, effectively prevent the aging of wire, described center column surface also can be provided with radiating fin simultaneously, increases the heat-dissipating space in housing further, improves radiating effect.
Further, described heat radiating cup is evenly provided with multiple radiating fin, described radiating fin also offers louvre, this contributes to increasing area of dissipation further, improves radiating effect.
Further, described radiating groove width range is 1mm-5mm, distance range between adjacent heat radiation groove is 1mm-10mm, the width limiting radiating groove is to prevent from pointing other assemblies stretching in this radiating groove and touch in the accommodation space of housing, this makes described housing to adopt plastic production, adopt plastic material to make and then effectively can reduce cost of manufacture, because housing have employed plastics, and the width of radiating groove has done strict restriction, the finger of people cannot touch housing accommodation space, therefore without the need to adopting insulating power supply as LED drive power.
The utility model is by adopting technique scheme, and compared with prior art, tool has the following advantages:
The utility model is by arranging radiator and gas channel, adopt double radiation structure, effectively can improve the radiating efficiency of LEDbulb lamp, have employed again on housing and conduction trough is set, enclosure interior is allowed to define cross-ventilation, the heat produced when effectively distributing LED chip luminescence in conjunction with radiator, and then reduce the operating temperature of LEDbulb lamp.And arrange owing to have employed fine and closely woven conduction trough, and the width of radiating groove has done strict restriction, and the finger of people cannot touch housing accommodation space, therefore without the need to adopting insulating power supply as LED drive power.
Accompanying drawing explanation
Fig. 1 is the structural blast schematic diagram of embodiment of the present utility model.
Fig. 2 is the structure partial cross-sectional schematic of embodiment of the present utility model.
Detailed description of the invention
In order to further describe the technical solution of the utility model, below by specific embodiment, the utility model is elaborated.Shown in figure 1 and Fig. 2, a kind of LEDbulb lamp, comprise connector 1, housing 2, LED light source module 3, radiator 4, circuit board 5 and lampshade 8, described connector 1 is connected with housing 2 top, described connector 1 can adopt different connectors 1, coordinate and be arranged on various joints, the present embodiment signal be connector 1 shape of screw socket wherein, there is in housing 2 accommodation space 21, described housing 2 also can be a hood-like housing 2, described housing 2 surrounding offers a plurality of radiating groove 22, described radiating groove 22 in horizontally disposed mode evenly around being arranged on housing 2 surrounding, certainly, this radiating groove 22 also can arrange many groups, often organize each radiating groove 22 horizontal parallel arrangement between radiating groove 22, each group radiating groove 22 is adjacent around being arranged on housing 2 surrounding, in addition, described radiating groove 22 all can also be arranged on around housing 2 in the mode vertically arranged, the angle of concrete setting and orientation be not as restriction, can according to die sinking difficulty or ease, attractive in appearance, and the combined factors such as radiating effect considers the arrangement mode arranging radiating groove 22.
In the present embodiment, each radiating groove 22 width range is 3mm, the maximum of this width normally radiating groove 22 each position width, because the central region width of some radiating groove 22 may be larger, and both sides arrange less, so this width refers to the width of the most width position of whole radiating groove 22, the scope of radiating groove 22 can also select the arbitrary value in 1mm-5mm, it is mainly to prevent finger from stretching into for the purpose of this housing 2 accommodated inside space, distance range between adjacent heat radiation groove 22 is 1mm-10mm, the width limiting radiating groove 22 is to prevent from pointing other assemblies stretching in this radiating groove 22 and touch in the accommodation space of housing 2, and described housing 2 can adopt plastic production, adopt plastic material to make and then effectively can reduce cost of manufacture, because housing 2 have employed plastics, and the width of radiating groove 22 has done strict restriction, the finger of people cannot touch housing 2 accommodation space, therefore without the need to adopting insulating power supply as LED drive power.
Described radiator 4 is fixed in the accommodation space of housing 2, described radiator 4 comprises a heat radiating cup 41, bottom described heat radiating cup 41, (towards light source side) is arc surface bottom surface 42, and described arc surface bottom surface 42 offers a plurality of louvre 421, arranges louvre 421 and contributes to heat radiation.Described LED light source module 3 comprises substrate 31 and a plurality of LED chip 32 on substrate that is sticked, described substrate 31 is arc surface substrate 31, this arc surface substrate 31 is connected by buckle 23 with the side of housing 2, fix with bolt again after the mode pasted can be adopted to be fitted and connected, or the modes such as plug also can be adopted to be fixedly connected with.Be formed with gas channel 6 between arc surface bottom surface 42 and arc surface substrate 31, a plurality of LED chip 32 is evenly sticked on arc surface substrate 31.The both sides described arc surface substrate 31 being positioned at each LED chip 32 offer pod apertures 311, described pod apertures 311 also matches with louvre 421 and arranges, also can arrange separately, so-called setting is separately exactly that the louvre 421 that is arranged at of pod apertures 311 does not possess corresponding relation, and both are independent setting.Described pod apertures 311 is connected with gas channel 6, better realizes cross-ventilation heat radiation.Arc surface bottom surface 42 can adopt plastics or metal material to make, and adopts plastic material can be cost-saving, and can integrated molding, and adopts metal material to be manufactured with to help further heat radiation, improve radiating effect.Described heat radiating cup 4 is evenly provided with multiple radiating fin 43, described radiating fin 43 also offers louvre 44, this contributes to increasing area of dissipation further, improves radiating effect.Described gas channel 6 side is by the pore 24 on housing 2 and housing 2 ft connection.Circuit board 5 to be arranged in connector 1 and to be electrically connected with LED light source module 3.
The depth of section of described gas channel 6 central region 61 is lower than the cross-sectional height of the side area 62 of described gas channel 6, by this design, after air draught is entered from the pore 24 of housing 2 side, first comparatively broad gas channel side area 62 is entered into, and then flow to comparatively narrow gas channel central region 61, make the pressure of air-flow become larger in central region 61, it is taken away heat ability and gets a promotion, and contributes to the raising of heat dispersion.
Be provided with a center column 7 in accommodation space in described housing 2, described center column 7 is metal center cylinder, its one end be arranged on connector and be fixedly connected with, be fixedly connected with bottom other end heat radiating cup 41, can realize connecting by bolt or welding.Be equipped with wire in described center column 7, described wire is used for the electric connection of realizing circuit plate 5 and LED light source module 3.Adopt metal center cylinder parcel wire, realize being electrically connected, avoid and directly adopt exposed wire and easily damage, effective stability ensureing to be electrically connected, effectively prevent the aging of wire, described center column 7 surface also can be provided with radiating fin 71 simultaneously, increases the heat-dissipating space in housing further, improves radiating effect.
Described lampshade 8 adopts glass or plastic material to make, and described housing 2 is also provided with bayonet socket 25, and described lampshade is provided with the buckle 81 mated with bayonet socket 25.Described lampshade 8 is also provided with air-vent 82.
During use, after described outer air stream enters gas channel 6 from the pore 24 of housing 2 side, first comparatively broad gas channel side area 62 is entered into, and then flow to comparatively narrow gas channel central region 61, the pressure of air-flow is made to become larger in central region 61, it is taken away heat ability and gets a promotion, air-flow flows out to LED chip 32 both sides through pod apertures 311 rapidly, take away the heat in LED chip 32, this heat finally flows out from the air-vent 82 of lampshade, form a natural cross-ventilation environment, the heat that LED sends is derived fast.And another part air-flow entered in described gas channel 6, from described louvre 421 to housing 2 internal flow, radiating groove 22 through housing 2 on backward externally dispels the heat, form another natural cross-ventilation structure, double-deck cross-ventilation structure, substantially increases the radiating effect of LEDbulb lamp, and radiator adopts the heat radiating cup 41 bottom arc surface, itself and arc surface substrate 31 proterties match, and can absorb heat rapidly further, taken away by heat and distribute from metal heat sink.
Although specifically show in conjunction with preferred embodiment and describe the utility model; but those skilled in the art should be understood that; not departing from the spirit and scope of the present utility model that appended claims limits; can make a variety of changes the utility model in the form and details, be protection domain of the present utility model.