CN103629559A

CN103629559A - LED lamp

Info

Publication number: CN103629559A
Application number: CN201210307155.0A
Authority: CN
Inventors: 陈庆仲; 刘润添; 刘宜三
Original assignee: QUANYIDA TECHNOLOGY (FOSHAN) Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: QUANYIDA TECHNOLOGY (FOSHAN) Co Ltd
Priority date: 2012-08-27
Filing date: 2012-08-27
Publication date: 2014-03-12

Abstract

An LED lamp comprises a substrate and a plurality of first LEDs and a plurality of second LEDs arranged on the surface of the substrate. The first LEDs are arranged in the middle of the substrate. The second LEDs are arranged at the edge position of the substrate and are arranged to surround the first LEDs. An optical lens is further arranged on the surface of the substrate. The optical lens comprises a light-in surface, a reflecting surface and a light-out surface. The light-in surface covers the second LEDs, the reflecting surface is arranged on the side close to the first LEDs, and the light-out surface is arranged on the side far away from the first LEDs. Light emitted by the second LEDs is incident from the light-in surface, and is emergent to the outside environment from the light-out face. The cooperative work between the first LEDs and the second LEDs enables the LED lamp to achieve the purpose of emitting light in a large angle under the condition that an illumination requirement is met.

Description

LED lamp

Technical field

The present invention relates to a kind of lighting device, particularly a kind of LED lamp.

Background technology

Light emitting diode (Light Emitting Diode, abbreviation LED) light source is as a kind of emerging third generation light source, although can't replace on a large scale traditional incandescent lamp now, it has the advantages such as long working life, energy-saving and environmental protection, and is generally had an optimistic view of by market.And the module being comprised of light emitting diode at present can produce light source high-power, high brightness, therefore will widely, revolutionaryly replace traditional existing light sources such as incandescent lamp, and then become the principal light source that meets energy-conserving and environment-protective theme.

At present, typical LED lamp generally comprises a flat-shaped substrate and some light emitting diode module that is attached at substrate bottom surface, the direction of illumination of this class light fixture is single and rising angle is less, although it can meet most lighting demand, yet, in some specific application scenarios, such as garage, colliery etc., need the larger place of rising angle of light fixture, just seem applicable not.

Summary of the invention

In view of this, be necessary the LED lamp that provides a kind of rising angle larger.

A LED lamp, a plurality of the first light emitting diodes and a plurality of the second light emitting diode that comprise substrate and be arranged on substrate surface.The first light emitting diode is arranged on the centre position of substrate.The second light emitting diode is arranged on the marginal position of substrate and around the first light emitting diode setting.Substrate surface is further provided with optical lens.Described optical lens comprises incidence surface, reflecting surface and exiting surface.Incidence surface covers on the second light emitting diode.Reflecting surface is arranged on the side near the first light emitting diode.Exiting surface is arranged on the side away from the first light emitting diode.The light that the second light emitting diode sends, from incidence surface incident, after reflecting surface reflection, shines external environment from exiting surface.

Compared with prior art, the light that the first light emitting diode of LED lamp of the present invention sends to the first surface of substrate towards area illumination, and the light that the second light emitting diode sends is after the refraction through optical lens and reflection, outer regions towards LED lamp is irradiated, acting in conjunction between described first, second light emitting diode, makes LED lamp rising angle larger.

With reference to the accompanying drawings, the invention will be further described in conjunction with specific embodiments.

Accompanying drawing explanation

Fig. 1 is the three-dimensional combination figure of the LED lamp of the embodiment of the present invention.

Fig. 2 is the inversion schematic diagram of the LED lamp in Fig. 1.

Fig. 3 is the assembly exploded view of LED lamp in Fig. 1.

Fig. 4 is the assembly exploded view of LED lamp in Fig. 2.

Fig. 5 is the schematic cross-section of LED lamp in Fig. 2.

Main element symbol description

LED lamp	100
		Radiating seat	110
Body	111
		Radiating fin	112
Boss	113
		Storage tank	114
Through hole	115
		Fin	116
Lampshade	120
		Annular lip	121
Press box	130
		Annular body	131
Projection	132
		Screw	133
Protective cover	140
		Ring limit	141
Perforation	142
		Screw	143
Power source cavity	150
		Driving power	151
Felt pad	152
		Binding post	153
Supporter	154
		Through hole	155
Bonnet	160
		Support	170
Installation sheet	171
		Screw	172
Power interface	180
		Recessed groove	181
Compressing tablet	182
		Illuminating module	190
Substrate	191
		The first light emitting diode	192
The second light emitting diode	193
		Optical lens	194
Incidence surface	1941
		Reflecting surface	1942
Exiting surface	1943
		Annular groove	1944

The following specific embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.

The specific embodiment

Refer to Fig. 1 and Fig. 2, the LED lamp 100 that the embodiment of the present invention provides comprises radiating seat 110, is arranged on the lampshade 120 of radiating seat 110 front ends, press box 130 and protective cover 140.The rear end of radiating seat 110 is formed with power source cavity 150, is covered on the bonnet 160 on power source cavity 150, the power interface 180 that is arranged at the support 170 on bonnet 160 and is arranged on power source cavity 150 sides.See also Fig. 3 and Fig. 4, described LED lamp 100 also comprises the illuminating module 190 that is arranged on radiating seat 110 and is established by lampshade 120 lids.

Above-mentioned radiating seat 110 is made by the metal material of good heat conductivity, and it is made material and comprises copper, aluminium or its alloy.In the present embodiment, described radiating seat 110 comprises discoid body 111 and from body 111 bottom surfaces or the outward extending some radiating fins 112 in side.The centre position of radiating seat 110 is provided with a boss 113, for described illuminating module 190 is set.The surrounding of boss 113 caves inward and forms the storage tank 114 of an annular, for accommodating described lampshade 120.The central authorities of radiating seat 110 offer a vertical through hole 115, for wire, pass.As required, the lateral surface of radiating seat 110 is also formed with a plurality of fins 116 of equidistant arrangement, described fin 116 extends to lower surface from the upper surface of body 111, and the middle position of fin 116 is formed with screw (figure), for screw, passes to fix described press box 130.

Illuminating module 190 is arranged on the boss 113 of radiating seat 110.Described illuminating module 190 comprises substrate 191 and is arranged on a plurality of the first light emitting diodes 192 and a plurality of the second light emitting diode 193 on substrate 191.The first light emitting diode 192 is arranged on the centre position of substrate 191, and the second light emitting diode 193 is arranged on the marginal position of substrate 191 and arranges around the first light emitting diode 192.Described illuminating module 190 further comprises an optical lens 194.This optical lens 194 is arranged on substrate 191 and covers described the second light emitting diode 193.See also Fig. 5, described optical lens 194 has incidence surface 1941, reflecting surface 1942 and exiting surface 1943.Incidence surface 1941 covers on the second light emitting diode 193, and reflecting surface 1942 is arranged on the side near the first light emitting diode 192, and exiting surface 1943 is arranged on the side away from the first light emitting diode 192.The light that the second light emitting diode 193 sends, from incidence surface 1941 incidents, is reflected face 1942 and reflects, and then from exiting surface 1943, shines external environment.In the present embodiment, on the incidence surface 1941 of described optical lens 194, be provided with annular groove 1944, for accommodating the second light emitting diode 193.As required, the projection of described reflecting surface 1942 on incidence surface 1941 covers the second light emitting diode 193 completely so that most of light that the second light emitting diode 193 sends via reflecting surface 1942 reflection after, via exiting surface 1943 outgoing.In the present embodiment, described incidence surface 1941 is plane, and described exiting surface 1943 is also plane and arranges perpendicular to incidence surface 1941.Described reflecting surface 1942 is arc surface, and in arc surface, the tangent line of every bit and the angular range of incidence surface 1941 are that 30 degree are to 60 degree, so that the light that the second light emitting diode 193 sends total reflections occurs and from exiting surface 1943 outgoing at reflecting surface 1942.As required, described reflecting surface 1942 can also be plane, and the angular range between reflecting surface 1942 and incidence surface 1941 at 30 degree between 60 degree.

Described lampshade 120 is bowl-shape, and it is made as glass, resin or plastic or other material by transparent or trnaslucent materials.Described lampshade 120 covers surface and the cover of radiating seat 110 and establishes described illuminating module 190.The outside horizontal-extending in edge of lampshade 120 forms an annular lip 121, and described annular lip 121, corresponding with the storage tank 114 of described radiating seat 110 in shape, is contained in described storage tank 114 with correspondence.As required, between annular lip 121 and storage tank 114, can also be formed with seal washer (not shown), in order to seal the gap between described lampshade 120 and radiating seat 110, thus the overall tightness of enhancing LED lamp 100.Described seal washer can be to be made by silica gel or metal material.In the present embodiment, described seal washer is copper packing.

Described press box 130 covers on lampshade 120, for lampshade 120 is fixed on radiating seat 110.Described press box 130 has an annular body 131, and described annular body 131 is pressed on annular lip 121, so that lampshade 120 is fixed on radiating seat 110.In the present embodiment, the lateral surface of press box 130 is formed with the projection 132 of some semi-cylindrical form, the position of described projection 132 is corresponding with the position of fin 116 on radiating seat 110, in assembling process, described projection 132 is stacked with fin 116, the middle part of each projection 132 is provided with an installing hole (not shown), for screw 133, passes and is screwed together among the screw of described fin 116, thereby within the annular lip of described lampshade 120 121 being fixed to the storage tank 114 of radiating seat 110.

Described protective cover 140 is netted, and it is bent or woven by wire and forms.Described protective cover 140 is fixed on described press box 130 and is not directly subject to external force collision with protection lampshade 120.Described protective cover 140 is corresponding with the profile of lampshade 120, and is a bit larger tham dimensionally lampshade 120 to be nested with in the outer peripheral edges of lampshade 120.In the present embodiment, the edge of described protective cover 140 outwards extend horizontally away a ring limit 141, and described ring limit 141 is spaced apart is provided with some perforation 142.The installing hole (not shown) that screw 143 passes on described some perforation 142 and press box 130, thus protective cover 140 is fixed on press box 130.

Power source cavity 150 is formed on the rear end of radiating seat 110, on the surface contrary with illuminating module 190.Described power source cavity 150 is for accommodating driving power 151.Described bonnet 160 is fixed on described power source cavity 150, for sealing described power source cavity 150.In the present embodiment, the relevant position at power source cavity 150 and bonnet 160 edges is provided with screw, and screw is fixed together power source cavity 150 and bonnet 160 through screw.Driving power 151 is arranged on the bottom of power source cavity 150, as required, between driving power 151 and the bottom of power source cavity 150, is also provided with a felt pad 152, for driving power 151 and radiating seat 110 are electrically insulated.On driving power 151, be also formed with a binding post 153, described binding post 153 is in order to be connected to outside power supply described driving power 151.In the present embodiment, described binding post 153 is fixed on driving power 151 by a supporter 154.The side of power source cavity 150 is formed with two through holes 155, and the inside of through hole 155 is provided with internal thread and penetrates for power interface 180.

As required, described LED lamp 100 can further include a support 170, and described support 170 is fixed on bonnet 160.The two ends of support 170 extend outward two installation sheets 171.On installation sheet 171, be formed with screw 172, thereby penetrate support 170 is fixed on to ground for screw, on the external environments such as wall or ceiling.

The outside of described power interface 180 one end is formed with external screw thread, to match with the internal thread on power source cavity 150 side through holes 155, thereby power interface 180 can be screwed in to through hole 155.Described power interface 180 is provided with the axis hole (not shown) that runs through its central shaft, with supply lines, penetrates.In the present embodiment, the middle part of power interface 180 is provided with within 181, one compressing tablets 182 of a recessed groove are installed in described recessed groove 181.Described compressing tablet 182 is for fixedly penetrating to the electric wire within power interface 180, to prevent that electric wire from producing displacement because of pullling of external force.

When above-mentioned LED lamp 100 is worked, LED lamp 100 can be arranged on a ceiling by support 170.The light that described the first light emitting diode 192 sends is directly irradiated in the working region of below through lampshade 120.The light that described the second light emitting diode 193 sends is after optical lens 194, from the side direction outgoing of LED lamp 100.The light that the light that described the first light emitting diode 192 sends and the second light emitting diode 193 send matches, thereby realizes the larger object of LED lamp 100 rising angles.

In addition, described LED lamp 100 is provided with press box 130 fitted seal in lampshade 120 places, also be provided with protective cover 140 simultaneously, make the overall tightness of this LED lamp 100 good, be adapted at the various inflammable and explosive workplaces such as oil, chemical industry, boats and ships, smelting, mining and use as lighting device.

Be understandable that, for the person of ordinary skill of the art, can make other various corresponding changes and distortion by technical conceive according to the present invention, and all these change and distortion all should belong to the protection domain of the claims in the present invention.

Claims

1. a LED lamp, a plurality of the first light emitting diodes and a plurality of the second light emitting diode that comprise substrate and be arranged on substrate surface, the first light emitting diode is arranged on the centre position of substrate, the second light emitting diode is arranged on the marginal position of substrate and around the first light emitting diode setting, it is characterized in that, substrate surface is further provided with optical lens, described optical lens comprises incidence surface, reflecting surface and exiting surface, incidence surface covers on the second light emitting diode, reflecting surface is arranged on the side near the first light emitting diode, exiting surface is arranged on the side away from the first light emitting diode, the light that the second light emitting diode sends is from incidence surface incident, the face that is reflected reflects, then from exiting surface, shine external environment.

2. LED lamp as claimed in claim 1, is characterized in that, on the incidence surface of optical lens, is provided with annular groove, in order to accommodating the second light emitting diode.

3. LED lamp as claimed in claim 2, is characterized in that, described exiting surface is plane and perpendicular to incidence surface setting.

4. LED lamp as claimed in claim 3, is characterized in that, described reflecting surface is plane, and the angular range between reflecting surface and incidence surface is that 30 degree are to 60 degree.

5. LED lamp as claimed in claim 3, is characterized in that, described reflecting surface is arc surface, and in described arc surface, the tangent line of every bit and the angular range between incidence surface are that 30 degree are to 60 degree.

6. LED lamp as claimed in claim 1, it is characterized in that, further comprise radiating seat, the centre position of radiating seat is formed with a boss, substrate arranges on boss, the surrounding of radiating seat is formed with a plurality of radiating fins, and the light that the first light emitting diode and the second light emitting diode send is delivered on radiating seat by substrate, and then the radiating fin via radiating seat is dispersed into external environment.

7. LED lamp as claimed in claim 6, it is characterized in that, further comprise lampshade, described lampshade covers described the first light emitting diode and the second light emitting diode, the surrounding of lampshade is formed with flange, the boss of radiating seat is formed with an annular groove around, and the flange of lampshade is placed in described annular groove.

8. LED lamp as claimed in claim 6, it is characterized in that, the surface contrary with the second light emitting diode with the first light emitting diode of described radiating seat is formed with a power source cavity, and for accommodating driving power, a bonnet is fixed on power source cavity for sealing described power source cavity.

9. LED lamp as claimed in claim 8, it is characterized in that, further comprise two power interfaces, the side of power source cavity is formed with two through holes with accommodating described power interface, through hole inside is provided with internal thread, and power interface outer setting has external screw thread so that power interface is screwed in to through hole.

10. LED lamp as claimed in claim 7, it is characterized in that, further comprise a press box, described press box has an annular body the flange of lampshade is pressed in the annular groove of radiating seat, and the marginal position of press box is provided with a plurality of screw holes press box is fixed on radiating seat by screw.

11. LED lamps as claimed in claim 10, is characterized in that, further comprise a protective cover, and described protective cover is netted and is fixed on described press box.

12. LED lamps as claimed in claim 8, is characterized in that, further comprise a support, and described support is arranged on the surface of bonnet, for fixing described LED lamp.