CN205378266U - Circular LED drive power supply of close -coupled - Google Patents

Abstract

The utility model belongs to the drive power supply field provides circular LED drive power supply of close -coupled, the electronic control apparatus comprises a circuit board, first fin and second fin, the theory of operation is that the commercial power passes through the fuse F1 on the circuit board, differential mode capacitor CX1, differential mode capacitor CX2, surging ware RM1, common mode inductance LF2, common mode inductance LF3, DB1 is put in order to the bridge, differential mode choke L1, electric capacity C5, electric capacity C7, transformer TX1, triode Q2, diode D2, electric capacity C25, triode Q1, transformer TX2, diode D1, electric capacity C2, electric capacity C1, ann's rule electric capacity CY1, ann's rule electric capacity CY2, common mode inductance LF1 exports the direct current, the circuit board is circular. The utility model has the advantages of simple structure, simple to operate, low in manufacturing cost. In addition, because of fin and transformer fully contact, can spread the heat on the transformer fast on whole LED drive power supply, avoid heating up and cause LED drive power supply to become invalid.

Description

Close-coupled round LED drives power supply

Technical field

This utility model relates to driving field of power supplies, drives power supply in particular to close-coupled round LED.

Background technology

LED light source is exactly the light source that light emitting diode (LED) is luminous body.Light emitting diode is invented the sixties in 20th century, and in many decades subsequently, its basic purposes is the display lamp as electronic equipments such as radio cassette players.And LED light source technical development in recent years is swift and violent, popularization degree is greatly improved, and starts to be widely used in the field such as room lighting, assistant light of automobile tool.This bulb has the feature of efficiency height, life-span length, can use continuously 100,000 hours, longer 100 times than ordinary incandescent lamp bubble.Scientist predicts, at the five-year, this bulb is likely to become the main product of illumination of future generation.

Along with commonly using of LED high power light source, large power supply increasingly enjoys favor, but the heat dissipation problem of power supply also shows especially out therewith, each LED drive power manufacturing enterprise has produced the various LED drive power with radiator for this problem, but relatively big and radiator the design of these power supplys mostly volume is complex, production is installed relatively complicated, affects the universal of LED light source.

Therefore developing a kind of compact LED with high-efficient radiating function and the easy radiator installed drives power supply to have significant Practical significance.

Utility model content

In order to solve the problems such as LED drive power heat radiation is bad, structure is complicated, installation difficulty is big in prior art, this utility model provides close-coupled round LED to drive power supply.

Close-coupled round LED drives power supply, including circuit board, first fin, second fin, described circuit board is provided with electric fuse F1, transformator TX1, transformator TX2, differential mode inductance L1, electric capacity C1, electric capacity C2, electric capacity C5, electric capacity C7, electric capacity C8, electric capacity C25, differential mode capacitor CX1, differential mode capacitor CX2, safety electric capacity CY1, safety electric capacity CY2, common mode inductance LF1, common mode inductance LF2, common mode inductance LF3, resistance R1, surging device RM1, diode D1, diode D2, diode D3, the whole DB1 of bridge, audion Q1, audion Q2, described first fin is located at described transformator TX1 and the surface of described transformator TX2, described circuit board is circular.

Further, described first fin has the blade that two panels is downward, is respectively provided with a screw hole in the middle part of described blade, and the described first fin upper left corner is additionally provided with a screw hole, and described first fin has a groove on the left of it.

Further, the left side of described transformator TX1, above audion Q1, be respectively provided with the circular hole corresponding with the screw hole on the first fin above triode Q2.

Further, described second fin includes the vertical sheet metal composition that a horizontal metal sheet is vertical with described horizontal metal sheet with at least 4, and the second fin and diode D1 contact.

The utility model has the advantages that, whole power supply architecture is compact, and circuit board is circular, it is possible to save installing space, it is also possible to reduces LED drive power and installs the size of shell.And the construction features according to whole driving power supply devises the first fin, the form fit of the groove on the first fin and transformator TX1, transformator TX2, contribute to the heat by transformator TX1, transformator TX2 and shed in time, it is ensured that the ruggedness of power supply.

Accompanying drawing explanation

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is top view of the present utility model；

Fig. 2 position structural representation of the present utility model；

Fig. 3 is the side view of bowing of this utility model the first fin；

Fig. 4 be this utility model the first fin face upward side view.

Detailed description of the invention

For making the purpose of this utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in this utility model embodiment, technical scheme in this utility model embodiment is carried out clear, complete description, obviously, described embodiment is a part of embodiment of the present utility model, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.

nullSuch as Fig. 1、2、Shown in 3 and 4，Close-coupled round LED drives power supply，Including circuit board 3、First fin 1、Second fin 2，Described circuit board is provided with electric fuse F1、Transformator TX1、Transformator TX2、Differential mode inductance L1、Electric capacity C1、Electric capacity C2、Electric capacity C5、Electric capacity C7、Electric capacity C8、Electric capacity C25、Differential mode capacitor CX1、Differential mode capacitor CX2、Safety electric capacity CY1、Safety electric capacity CY2、Common mode inductance LF1、Common mode inductance LF2、Common mode inductance LF3、Resistance R1、Surging device RM1、Diode D1、Diode D2、Diode D3、The whole DB1 of bridge、Audion Q1、Audion Q2，Described first fin 1 is located at described transformator TX1 and the surface of described transformator TX2，Described circuit board is circular.Described first fin 1 has the blade that two panels is downward, respectively has a screw hole 5 in the middle part of described blade, and described first fin 1 upper left corner is additionally provided with a screw hole 6, and described first fin 1 has a groove 8 on the left of it.Above the left side of described transformator TX1, audion Q1, above triode Q2, it is respectively provided with the circular hole 7 corresponding with the screw hole on the first fin 1.Described second fin 2 is made up of the vertical sheet metal that a horizontal metal sheet and 4 or above and described horizontal metal sheet are vertical, and the second fin 2 and diode D1 contact.

After close-coupled round LED drives power supply to connect mains supply, the alternating current power supply that civil power provides is by electric fuse F1, differential mode capacitor CX1, differential mode capacitor CX2, surging device RM1, common mode inductance LF2, common mode inductance LF3, the whole DB1 of bridge, differential mode inductance L1, electric capacity C5, electric capacity C7, transformator TX1 pressure regulation, audion Q2, diode D2 voltage stabilizing, capacitor C25, audion Q1, transformator TX2 pressure regulation, diode D1 voltage stabilizing, electric capacity C2, electric capacity C1, safety electric capacity CY1, safety electric capacity CY2, the conversion output DC source of common mode inductance LF1, it is supplied to LED load to use, resistance R1, electric capacity C8, electric capacity C25 and diode D3 is safety element.Therefore when LED drive power works, transformator TX1, transformator TX2 can produce substantial amounts of heat, and additionally the element such as inductance L1, diode D1, electric capacity C25, audion Q1 also can produce heat.Due to the first fin 1 and transformator TX1, transformator TX2, audion Q1, electric capacity C25, differential mode inductance L1 close contact; second fin 2 and diode D1 contact; there is bigger area of dissipation; it is possible to the heat of said elements is dispersed rapidly; avoid too high the power-fail even problem of component wear of causing of local temperature, play protection and drive the effect of power supply.

Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, it cannot be assumed that of the present utility model being embodied as is confined to these explanations, namely all done impartial change according to the application scope and modified, all should still be belonged in this utility model covering scope.

Claims (4)

1. close-coupled round LED drives power supply, it is characterized in that: include circuit board, first fin, second fin, described circuit board is provided with electric fuse F1, transformator TX1, transformator TX2, differential mode inductance L1, electric capacity C1, electric capacity C2, electric capacity C5, electric capacity C7, electric capacity C8, electric capacity C25, differential mode capacitor CX1, differential mode capacitor CX2, safety electric capacity CY1, safety electric capacity CY2, common mode inductance LF1, common mode inductance LF2, common mode inductance LF3, resistance R1, surging device RM1, diode D1, diode D2, diode D3, the whole DB1 of bridge, audion Q1, audion Q2, described first fin is located at described transformator TX1 and the surface of described transformator TX2, described circuit board is circular.

2. close-coupled round LED according to claim 1 drives power supply, it is characterized in that: described first fin has the blade that two panels is downward, a screw hole it is respectively provided with in the middle part of described blade, the described first fin upper left corner is additionally provided with a screw hole, and described first fin has a groove on the left of it.

3. close-coupled round LED according to claim 2 drives power supply, it is characterised in that: above the left side of described transformator TX1, audion Q1, above triode Q2, it is respectively provided with the circular hole corresponding with the screw hole on the first fin.

4. close-coupled round LED according to claim 1 drives power supply, it is characterised in that: described second fin includes the vertical sheet metal composition that a horizontal metal sheet is vertical with described horizontal metal sheet with at least 4, and the second fin 2 and diode D1 contact.