CN201228869Y

CN201228869Y - Led lamp structure

Info

Publication number: CN201228869Y
Application number: CNU2008201184214U
Authority: CN
Inventors: 周书玮
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-06
Filing date: 2008-06-06
Publication date: 2009-04-29
Anticipated expiration: 2018-06-06

Abstract

A light-emitting diode light fitting comprises a reflector, a circular coil, a metal casing, a connector and a metal seat locked to the connector, wherein at least one light-emitting diode bulb is disposed on the reflector, the metal casing is connected with the connector and the reflector, the metal casing is provided with a containing space for the circular coil, the circular coil includes an iron core, at least one primary winding and one secondary winding are wound around the iron core, the secondary winding is electrically connected with the light-emitting diode bulb, the metal seat is fixed on the metal casing through the connector, the primary winding is connected with the metal seat, and the primary winding obtains electric power from the metal seat to output direct-current power. EMI and high frequency harmonics can be reduced by the featured fine magnetic closed circuit of the circular coil, and the metal casing can increase the heat dissipation capacity, thereby prolonging the service life of the light-emitting diode bulb, and improving the shortage of overheating and excessive generated power harmonics in the known light fittings.

Description

LED lamp structure

[technical field]

The utility model is a kind of LED lamp structure, is meant especially and utilizes light emitting diode as light source, and be installed in the metal shell in conjunction with so that the fitting structure of stable power to be provided with a loop coil.

[background technology]

Light emitting diode (light emitting diode) is because the brightness height, power consumption less and long advantage of life-span, be applicable to all kinds of lighting apparatus gradually, therefore use the also constantly research and development improvement of light fixture of light emitting diode (light emitting diode), thereby generation waterproof, high brightness, the situation lamp, purposes such as landscape ornamental, and the galvanic current power that provides is provided the complicated part of the led lamp hierarchy of skill, known led lamp as shown in fig. 1, comprise a housing 93, one reflector 92, lampshade 95, these housing 93 belows connect a metal pedestal 94 so that obtain electric power, this circuit board 92 is then carried in these housing 93 tops, this circuit board 92 connects plural light emitting diode bulb 91, above-mentioned known led lamp more needs an electronic type rectifier 96 that alternating electromotive force is converted to direct current power, but electronic type rectifier 96 also has no small volume, make the lamp interior heat radiation bad the accommodation space that occupies the lamp interior major part, and this electronic type rectifier 96 causes 96 or light emitting diode bulb 91 damages of electronic type rectifier own because of overheated and out of control generation abnormal current easily, therefore utilizes the light fixture of electronic type rectifier 96 all to be easy to overheated damage under long-time the use; In theory, the normal life-span of using of general light emitting diode should reach more than 10 years, but 91 life-spans of light emitting diode bulb that use electronic type rectifier 96 is driven are much smaller than the life-span of light-emitting diodes tube body; Again, operating frequency height because of electronic type rectifier 96, can produce the harmonic wave and the EMI (electromagnetic interference) of high frequency, if a large amount of electronic type rectifiers 96 that use will make excessive harmonic wave and the EMI (electromagnetic interference) of generation in power system and the surrounding environment, have a strong impact on power quality, thereby known led lamp still can't use in a large number to replace conventional bulb, demand the stable and electric power supply apparatus that do not pollute power quality of an output urgently to provide direct current power luminous for light emitting diode bulb 91, moreover also the function that need strengthen dispelling the heat is to prolong 91 service lifes of light emitting diode bulb.

[utility model content]

Because the disappearance that above-mentioned known led lamp utilizes the electronic type rectifier to produce, primary and foremost purpose of the present utility model promptly is to provide a DC-AC conversion device to combine with light fixture and forms a LED lamp structure, uses and improves the life-span than disappearance short and the pollution power quality.

The wood utility model is a LED lamp structure, comprise a reflector, one loop coil, one metal shell, an a connection piece and a metal pedestal that is buckled in this connector, at least one light emitting diode bulb is set on this reflector, this metal shell has the opening that is positioned at relative both sides, wherein an opening is connected with this connector, another opening then is connected with this reflector, and have an accommodation space between this metal shell and this reflector this loop coil is set, this loop coil comprises an iron core, this iron core is winding one elementary winding and a level winding at least, this secondary windings electrically connects this light emitting diode bulb, this metal shell sees through this connector and fixes this metal pedestal again, this elementary winding then connects this metal pedestal, but make this toroidal elementary this metal pedestal of winding mat obtain alternating electromotive force, make the exportable direct current power of this secondary windings to this light emitting diode bulb; Be combined as a light fixture by this, utilize the good magnetic closed loop characteristic of loop coil to reduce EMI and high-frequency harmonic, and above-mentioned metal shell can improve heat-sinking capability, prolong the service life of this light emitting diode bulb.

Therefore the beneficial effects of the utility model are:

1. reduce electromagnetic interference (EMI) and the harmonic wave that light fixture produces.

2. raising heat-sinking capability.

[description of drawings]

Fig. 1 is the exploded view of known led lamp.

Fig. 2 is exploded view of the present utility model.

Fig. 3 is the loop coil exploded view of the utility model application.

Fig. 4 is the loop coil profile of the utility model application.

Fig. 5 is stereogram of the present utility model.

Fig. 6-1 is profile of the present utility model.

Fig. 6-2 is the partial enlarged drawing of Fig. 6-1.

Fig. 7 is metal shell of the present utility model and this connector exploded view.

[specific embodiment]

Relevant detailed description of the present utility model and technology contents now just cooperate graphic being described as follows:

See also Fig. 2, this fitting structure comprises that a metal shell 6, a reflector 1, a loop coil 3, a connection piece 4 and are buckled in a metal pedestal 5 of this connector 4, this reflector 1 is provided with at least one light emitting diode bulb 2, and being the geometric graph shape is embedded on this reflector 1, this loop coil 3 comprises an iron core 35, on this iron core 35 at least winding one elementary winding 31 and a level winding 32 to form the structure of a convertible electric power; This metal shell 6 has the opening that is positioned at relative both sides, wherein an opening is connected with this connector 4, another opening then is connected with this reflector 1, wherein this metal shell 6 has an at least one public fitting portion 62 and a female fitting portion 12 respectively with this reflector 1, utilize this public affairs fitting portion 62 and female fitting portion 12 to make this metal shell 6 fasten (shown in Fig. 6-1) each other with this reflector 1, this metal shell 6 is strengthened fixing function (shown in Fig. 6-2) with a bulge loop 61 and a scrobicular ring 11 that this reflector 1 has corresponding fastening more respectively again, and 1 of this metal shell 6 and this reflector have an accommodation space this loop coil 3 are set, moreover, this connector 4 can be established at least one public buckling parts 41, and this metal shell 6 is established corresponding female buckling parts 63 (being shown in Fig. 7) to connect this connector 4, make this metal shell 6 can see through this connector 4 and fix a metal pedestal 5, directly contact conduction with this metal shell 6 to avoid this metal pedestal 5; This loop coil 3 is placed in this metal shell 6, and the elementary winding 31 of this loop coil 3 is connected with this metal pedestal 5, and the electric power of these secondary windings 32 outputs sees through this light emitting diode bulb 2 formation electric connections of this reflector 1 driving, must be provided with the necessary circuitry that drives this light emitting diode bulb 2 in this reflector 1, its whole aspect as shown in Figure 5; This metal shell 6 is fixed this metal pedestal 5 by this connector 4, this metal pedestal 5 connects power sources and when obtaining alternating electromotive force, the elementary winding 31 of this loop coil 3 can be obtained alternating electromotive force from this metal pedestal 5, this secondary windings 32 can be responded to the direct current power of the few harmonic wave of output to this reflector 1, makes this light emitting diode bulb 2 luminous; Reduce EMI by loop coil 3 good magnetic closed loop characteristics, low and the loop coil 3 of dc impedance has the characteristic that volume is little, the chokes performance is good can provide pure direct current power, and the electronic type rectifier 96 (being shown in Fig. 1) that takes up room more known is little, can be placed in the light fixture of various sizes, more be applicable to various purposes, in addition, because this metal shell 6 can provide better heat-sinking capability, can reduce temperature, avoid influencing the service life of this light emitting diode bulb 2.

See also Fig. 3 and Fig. 4, these are graphic to be an embodiment stereogram and a profile of this loop coil 3, this loop coil 3 comprises an iron core 35, one elementary winding 31, a level winding 32 and make this iron core 35, the paired lid 34 of elementary winding 31 and secondary windings 32 isolated insulations, more can insert pipe 33 in this lid 34, these lid 34 cutters are established the perforation 36 of pulling out for these elementary winding 31 two ends again, treat that this elementary winding 31 passes after this perforation 36 this lid 34 and covers relatively and form this iron core 35 in two ends end to end, the insulating barrier that this elementary winding 31 and this secondary windings are 32, one deck cladding 37 more can be set up with reinforced insulation in the interior outside of this lid 34, defencive functions such as waterproof, this secondary windings 32 is wound in outside this lid 34 at last, by magnetic induction taking place and produce current flowing, form a loop coil 3 that stable power can be provided with this elementary winding 31; Utilize this loop coil 3 to replace the electronic type rectifier 96 of known light fixture, galvanic current power can be provided, more can solve and have high-frequency harmonic pollution electric power, EMI (electromagnetic interference) and the excessive disappearance that is difficult to be applicable to small-sized light fixture of volume in the past, because loop coil 3 is applicable to the light fixture of each size, and can make the light fixture volume-diminished, the advantage that has harmonic carcellation, noise, no EMI (electromagnetic interference) again makes led lamp be more suitable for general life and uses.

Though the utility model discloses as above with preferred embodiment; right its is not in order to limit the utility model; above-mentioned metal shell 6 can be copper alloy or aluminum alloy material; anyly have the knack of this skill person; in not breaking away from spirit and scope of the present utility model; and a little change and the retouching done all should be covered by in the utility model, and therefore protection domain of the present utility model is as the criterion when looking accompanying the claim person of defining.

In sum, the more known structure of the utility model is promoted above-mentioned effect, should fully meet the legal innovation patent important document of novelty and progressive, files an application in the whence in accordance with the law.

Claims

1. a LED lamp structure supplies at least one light emitting diode bulb (2) luminous for connecting AC power and alternating electromotive force being converted to direct current power, and it is characterized in that: this light fixture comprises:

One reflector (1) is that at least one light emitting diode bulb of installing (2) is embedded thereon;

One loop coil (3) comprises an iron core (35), and this iron core (35) is winding one an elementary winding (31) and a level winding (32) at least, and this secondary windings (32) electrically connects with this light emitting diode bulb (2);

One metal shell (6), this metal shell (6) has the opening that is positioned at relative both sides, wherein an opening is connected with a connection piece (4), and another opening then is connected with this reflector (1), and has an accommodation space between this metal shell (6) and this reflector (1) this loop coil (3) is set;

One metal pedestal (5), this metal pedestal (5) is connected in an end of this connector (4), and this metal pedestal (5) electrically connects with the elementary winding (31) of this loop coil (3), seeing through this metal pedestal (5) electrically conducts with an electric source, make this annular coil (3) obtain alternating electromotive force by the conduction of this metal pedestal (5), secondary windings (32) the output DC power that makes this loop coil (3) is to this light emitting diode bulb (2) and luminous.

2. according to 1 described LED lamp structure of claim the, it is characterized in that: this loop coil (3) comprises the interior pipe (33) that is disposed between this iron core (35) and this elementary winding (31), and symmetry covers the lid (34) with isolated this elementary winding (31) and this secondary windings (32).

3. according to 1 described LED lamp structure of claim the, it is characterized in that: this connector (4) can be established at least one public buckling parts (41), and this metal shell (6) is established corresponding female buckling parts (63).

4. according to 1 described LED lamp structure of claim the, it is characterized in that: this metal shell (6) has an at least one public fitting portion (62) and a female fitting portion (12) respectively with this reflector (1), utilizes this public affairs fitting portion (62) and female fitting portion (12) that this metal shell (6) and this reflector (1) are fastened each other.

5. according to 1 described LED lamp structure of claim the, it is characterized in that: this metal shell (6) and this reflector (1) have a bulge loop (61) and a scrobicular ring (11) of corresponding fastening respectively.

6. according to 1 described LED lamp structure of claim the, it is characterized in that: the material of this metal shell (6) is an aluminium alloy.

7. according to 1 described LED lamp structure of claim the, it is characterized in that: the material of this metal shell (6) is a copper alloy.

8. according to 1 described LED lamp structure of claim the, it is characterized in that this light emitting diode bulb (2) is geometric figure and is arranged on this reflector (1).

9. according to 1 described LED lamp structure of claim the, it is characterized in that: be provided with the circuit that drives this light emitting diode bulb (2) in this reflector (1).