CN102997076A

CN102997076A - High-efficiency light-emitting diode (LED) lamp

Info

Publication number: CN102997076A
Application number: CN2011102689091A
Authority: CN
Inventors: 周志胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-13
Filing date: 2011-09-13
Publication date: 2013-03-27

Abstract

The invention relates to a high-efficiency light-emitting diode (LED) lamp. A lamp board and a light guiding pillar are respectively arranged in a lamp holder, a lamp shade is arranged at the upper end of the lamp holder, and a connector electrically connected with the lamp board is fixedly arranged at the bottom end of the lamp holder. The lamp holder is formed by sintering fine ceramics and alumina ceramics at high temperature and can have ideal radiating characteristics due to fine pores. The light guiding pillar is formed by high borosilicate glass and has high transparency, the bottom end of the light guiding pillar corresponds to a light-emitting diode on the lamp board, and a reflecting casing is arranged at the top end of the light guiding pillar; and the reflecting casing has a conical reflecting mirror surface and corresponds to the light-emitting diode on the light guiding pillar. By means of the structure, the light-emitting diode generates light rays and ejects the light rays on the whole light guiding pillar, and the light rays are simultaneously reflected on the reflecting mirror surface, so that the whole circumference surface of the light guiding pillar shines, and light-emitting efficiency is remarkably improved.

Description

The high efficiency LED lamp tool

Technical field

The present invention is about a kind of LED light fixture, espespecially a kind of LED light fixture with desirable heat dissipation characteristics and luminous efficiency.

Background technology

Because low, the long working life of light emitting diode power consumption, the light emitting diode of various coloured light also one after the other comes out in recent years, and particularly after the white light emitting diode listing, light emitting diode has become the principal light source that the environmental protection light fixture is taken as own duty.Because the needs in the illumination, the light emitting diode of high power high luminance is used on the light fixture, the problem of heat radiation but the light emitting diode behind the raising power is derived still unavoidablely, that is light fixture itself is necessary for light emitting diode good cooling measure is provided, just can guarantee the normal operation of light emitting diode, for example the present in the streets shell of many LED light fixtures is made of many radiating fins, utilize radiating fin to wave and distribute the high heat that produces when optical diode is worked, therefore adopt LED not only very large with the conventional bulb difference in appearance as the bulb of light source, and textural comparatively complexity.

Moreover, conventional bulb can be luminous on all-round of a spherical lampshade, but the light emitting diode that the LED light fixture adopts, its light emission angle has certain restriction, all-round luminous illumination functions certainly will can't be provided, solution may be with more light emitting diode towards different angles, using provides wide-angle illumination, but certainly will improve thus complexity and the manufacturing cost of LED light fixture.

With regard to power supply mode, existing LED light fixture is supplied to light emitting diode after adopting transformer that alternating current is converted to direct current more in addition, under this situation, certainly will produce except between AC-DC conversion the loss, and the utilization of transformer will make volume become large, cost raising.

From the above, the problems of taking off before existing LED light fixture still exists are still treated further self-criticism, and seek feasible solution.

Summary of the invention

Therefore main purpose of the present invention is providing a kind of high efficiency LED lamp tool, it is by changing the lamp socket material to give heat dissipation characteristics, utilize again special optical design that wide-angle illumination is provided, and improve illumination efficiency, and can effectively solve the problems that existing LED light fixture exists.

Make aforementioned LED light fixture comprise for reaching the technical way that aforementioned purpose takes:

One lamp socket generally is hollow tube-shape, and has trickle pore; This lamp socket has a upper shed and a under shed;

One lamp plate is located in the aforementioned lamp socket, and is positioned at the upper shed inboard, mainly be provided with more than one light emitting diode in the surface of a circuit board, on this circuit board and be provided with a power circuit, this power circuit has an input and an output, and its output is connected with light emitting diode;

One light-guiding pillar is located on the aforementioned lamp plate, and this light-guiding pillar is the glass column of a high grade of transparency, and it has a top and a bottom, and forms respectively upper and lower groove on top, bottom, and its low groove is corresponding to the light emitting diode on the lamp plate;

One reflector is located in the upper groove on aforementioned light-guiding pillar top, and the bottom surface of this reflector has the mirror surface of a taper, and this mirror surface is with respect to the light emitting diode on the lamp plate;

One lampshade, light-permeable, it has the bottom of a transmission, and relatively is incorporated into upper shed place of lamp socket;

One joint is located at the lower opening of lamp socket, and with lamp plate on the input of set AC power circuit consist of and be electrically connected;

Above-described LED light fixture, because its lamp socket is formed with trickle pore, make by this lamp socket possess gas permeability, thereby on the lamp plate light emitting diode when work the heat energy that produces can outwards disperse via the trickle pore of lamp socket, be beneficial to heat radiation, under this situation, radiator need not be set, can obtain desirable heat radiation purpose; The light-guiding pillar that has again special optical design in the lamp socket, its glass column by the high grade of transparency is consisted of, when the light emitting diode on the lamp plate during by the bottom throw light of light-guiding pillar, it is luminous to utilize the light of direct projection that whole light-guiding pillar is able on all-round ground, and aforementioned light also is incident upon on the mirror surface of reflection shield simultaneously, via the luminous height of reflection with further raising light-guiding pillar, thereby effectively promote illumination efficiency.

Power circuit on the aforementioned lamp plate is an AC power circuit, this AC power circuit mainly is serially connected with more than one resistance between a piezo-resistance and a thermistor and a fuse consists of, one end of this piezo-resistance is connected with joint, with the input AC electricity; One end of this thermistor is connected with the light emitting diode on the lamp plate, and this light emitting diode is an alternating-current light emitting diode;

Because aforementioned AC power circuit directly drives light emitting diode with alternating current, thus transformer need not be used, and can reduce transformer and take volume; Piezo-resistance has the input voltage defencive function again, and thermistor then can provide overtemperature protection.

Description of drawings

Fig. 1 is stereogram of the present invention.

Fig. 2 is exploded view of the present invention.

Fig. 3 is cutaway view of the present invention.

Fig. 4 is the circuit diagram of power circuit one possible embodiments of the present invention.

The main element symbol description

10 lamp sockets, 11 ring portions

111 annular grooves, 112 button pieces

20 lamp plates, 21 circuit boards

22 light emitting diodes, 23 piezo-resistances

24 thermistors

30 light-guiding pillars, 31 low grooves

32 upper grooves, 33 reflectors

34 extensions

40 lampshades, 50 joints

60 fixed disks, 61 through holes

62 ring walls, 620 catching grooves

The specific embodiment

About a preferred embodiment of the present invention, see also Fig. 1, shown in Figure 2, mainly formed by a lamp socket 10, a lamp plate 20, a light-guiding pillar 30, a lampshade 40 and a joint 50, for further lamp plate 20 and light-guiding pillar 30 being fixed in the lamp socket 10, further comprise a fixed disk 60 in the present embodiment, in order to lamp plate 20 and light-guiding pillar 30 are fixed in the lamp socket 10; Wherein:

This lamp socket 10 generally is hollow tube-shape, mainly has trickle pore by pottery and alumina ceramics through high temperature sintering; In present embodiment, lamp socket 10 top external diameters are maximum, and its external diameter is also successively decreased down by the top, and lamp socket 10 forms a upper shed at top end again, and the place, bottom then forms a under shed; Moreover lamp socket 10 is formed with a ring portion 11 in the upper shed inboard, be formed with an annular groove 111 on the internal ring wall of this ring portion 11, for accommodating lamp plate 20; Form again more than one button piece 112 on the external annulus of ring portion 11, in present embodiment, the lateral wall of this ring portion 11 forms respectively button piece 112 on relative position, fixes this lamp plate 20 and light-guiding pillar 30 to be fixed dish 60.

This lamp plate 20 is located in the ring portion 11 of aforementioned lamp socket 10, and be positioned on the annular groove 111 on ring portion 11 internal ring walls, in present embodiment, this lamp plate 20 mainly is provided with more than one light emitting diode 22 in the surface of a circuit board 21, on this circuit board 21 and be provided with a power circuit (this not shown in the figures), this power circuit is connected with joint 50, light emitting diode 22 respectively, with supply, is detailed later as for the concrete structure of power circuit.

Please cooperate Fig. 2, shown in Figure 3, this light-guiding pillar 30 erectly is located on the aforementioned lamp plate 20, in present embodiment, this light-guiding pillar 30 is solid glass posts that a high borosilicate consists of, it has the high grade of transparency, light-guiding pillar 30 has a top and a bottom again, its bottom extends to form the extension 34 of a dish with horizontal direction, to enlarge the floor space of light-guiding pillar 30, firmly being arranged on the lamp plate 20, moreover the bottom centre of light-guiding pillar 30 is formed with a low groove 31, this low groove 31 is suitable corresponding to the light emitting diode 22 on the lamp plate 20, and is positioned at this low groove 31 for light emitting diode 22; The top ends of light-guiding pillar 30 is formed with a upper groove 32 in addition, the flute profile of this upper groove 32 is coniform, upper groove 32 cell walls form a reflector 33 with sputtering aluminum again, the form fit of this reflector 33 is in the cell wall shape of upper groove 32, that is be formed with the mirror surface of a taper in reflector 33 bottom surfaces, this mirror surface passes through light-guiding pillar 30 with respect to the light emitting diode 22 on the lamp plate 20, when the light emitting diode 22 on the lamp plate 20 is luminous, its light with direct projection on light-guiding pillar 30, make the whole diametric plane of light-guiding pillar 30 luminous, and the light of direct projection will be by the mirror surface reflection of reflector 33, with further luminous efficiency.

And this fixed disk 60 is shallow disc shape, its central authorities are formed with a through hole 61, and these through hole 61 apertures are matched with the external diameter of light-guiding pillar 30, less than the external diameter of light-guiding pillar 30 bottom extensions 31, passed by through hole 61 for light-guiding pillar 30 by this, its extension 31 then is subjected to fixed disk 60 restrictions; Fixed disk 60 has a ring wall 62 again, these ring wall 62 internal diameters are matched with ring portion 11 external diameters on the lamp socket 10, be formed with again several catching grooves 620 on the ring wall 62, each catching groove 620 corresponds respectively to the button piece 112 on ring portion 11 external annulus and mutually fastens, and then lamp plate 20 and light-guiding pillar 30 are fixed in the lamp socket 10.

This lampshade 40 is transparent covers of a light-permeable, and it has the bottom of a transmission, and its bottom also is incorporated into upper shed place of lamp socket 10 relatively.

This joint 50 is located at the lower opening of lamp socket 10, and with lamp plate 20 on set power circuit consist of and be electrically connected; In present embodiment, this joint 50 is spiral bulb adapters, and it can corresponding be screwed onto on the lamp socket of conventional bulb, to obtain power supply and to be supplied to light emitting diode 22 on the lamp plate 20.

LED light fixture of the present invention mainly is comprised of above-mentioned structure, it possesses desirable radiating effect and luminous efficiency, mainly form through high temperature sintering with high voltage bearing pottery and alumina ceramics because of its lamp socket 10, possesses good gas permeability so have a lot of trickle pores on the lamp socket 10, the heat energy that produces when therefore the light emitting diode on lamp plate 20 22 is worked can outwards be dispersed via the pore of lamp socket 10, can effectively reduce by this temperature in the lamp socket 10, light emitting diode 22 on the lamp plate 20 can be worked, this shows, lamp socket 10 of the present invention provides good cooling measure, but radiator need not be set additionally.

And in the lifting of luminous efficiency, mainly be provided with the light-guiding pillar 30 of special optical design at lamp plate 20, owing to be that glass column by the high grade of transparency is consisted of, when the light emitting diode 22 on the lamp plate 20 during by the bottom throw light of light-guiding pillar 30, it is luminous that the light of direct projection will make whole light-guiding pillar 30 be able to all-round ground, and the light of direct projection also is incident upon on the mirror surface of reflection shield 33 simultaneously, via the luminous height of reflection with further raising light-guiding pillar 30, thereby effectively promotes illumination efficiency.

Possible embodiments as for the present invention's set power circuit on aforementioned lamp plate 20, see also shown in Figure 4, this power circuit is an AC power circuit, mainly between a piezo-resistance 23 and a thermistor 24, be serially connected with more than one resistance R 1～R3 and a fuse F consists of, one end of this piezo-resistance 23 is connected with joint 50, with the input AC electricity; One end of this thermistor 24 is connected with light emitting diode 22 on the lamp plate 20, and this light emitting diode 22 is an alternating-current light emitting diode.Utilize the use of aforementioned AC power circuit cooperation alternating-current light emitting diode, can be directly with electric main driving LED light fixture; In addition, have more standby safety protecting mechanism, this piezo-resistance 23 provides defencive function for input voltage, when large voltage input was arranged, piezo-resistance 23 diminished, and satisfied large voltage by piezo-resistance 23, and fuse F is disconnected, so that safeguard measure to be provided, and then voltage can be stabilized in the specification limit, not reason overtension or unstable and burn element in the circuit; Thermistor 24 is to provide overtemperature protection again, avoids burning out light emitting diode 22 because of excess Temperature on the lamp plate 20.

Claims

1. a high efficiency LED lamp tool is characterized in that, comprising:

One lamp socket generally is hollow tube-shape, has trickle pore; Lamp socket has a upper shed and a under shed again;

One joint is located at the lower opening of lamp socket, and with lamp plate on the input of set AC power circuit consist of and be electrically connected.

2. high efficiency LED lamp tool as claimed in claim 1 is characterized in that, this lamp socket is mainly formed through high temperature sintering by pottery and alumina ceramics.

3. high efficiency LED lamp tool as claimed in claim 2 is characterized in that, this reflector is formed in the upper groove of light-guiding pillar top ends with sputtering aluminum, and with respect to the light emitting diode on the lamp plate.

4. high efficiency LED lamp tool as claimed in claim 3 is characterized in that, the glass column that this light-guiding pillar is made of high borosilicate.

5. high efficiency LED lamp tool as claimed in claim 4 is characterized in that, this lamp socket is formed with a ring portion in the upper shed inboard, is formed with an annular groove on the internal ring wall of this ring portion, for accommodating lamp plate.

6. such as arbitrary described high efficiency LED lamp tool in the claim 1 to 5, it is characterized in that, form the more than one piece of buckleing in this lamp socket on the external annulus of set ring portion;

Further be provided with again a fixed disk on the lamp socket, this fixed disk is shallow disc shape, and its central authorities are formed with a through hole, is passed by through hole for light-guiding pillar; Fixed disk has a ring wall again, and this ring wall internal diameter is matched with the ring portion external diameter on the lamp socket, is formed with again each catching groove of several catching grooves on the ring wall and corresponds respectively to the button piece on the ring portion external annulus and mutually fasten.

7. high efficiency LED lamp tool as claimed in claim 6 is characterized in that, the bottom of this light-guiding pillar is formed with an extension with horizontal direction;

The through-hole aperture of this fixed disk is matched with the external diameter of light-guiding pillar, less than the external diameter of light-guiding pillar bottom extension.

8. high efficiency LED lamp tool as claimed in claim 7 is characterized in that, this joint is a spiral bulb adapter.

9. such as arbitrary described high efficiency LED lamp tool in the claim 1 to 5, it is characterized in that, power circuit on this lamp plate is an AC power circuit, this AC power circuit mainly is serially connected with more than one resistance between a piezo-resistance and a thermistor and a fuse consists of, one end of this piezo-resistance is connected with joint, with the input AC electricity; One end of this thermistor is connected with the light emitting diode on the lamp plate, and this light emitting diode is an alternating-current light emitting diode.

10. high efficiency LED lamp tool as claimed in claim 6, it is characterized in that, power circuit on this lamp plate is an AC power circuit, this AC power circuit mainly is to be serially connected with more than one resistance and a fuse consists of between a piezo-resistance and a thermistor, one end of this piezo-resistance is connected with joint, with the input AC electricity; One end of this thermistor is connected with the light emitting diode on the lamp plate, and this light emitting diode is an alternating-current light emitting diode.