CN211297038U

CN211297038U - Drive circuit of LED drive power supply

Info

Publication number: CN211297038U
Application number: CN201922003844.2U
Authority: CN
Inventors: 潘铭强
Original assignee: Zhongshan Naifeng Lighting Technology Co ltd
Current assignee: Zhongshan Naifeng Lighting Technology Co ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-08-18
Anticipated expiration: 2029-11-19

Abstract

The utility model belongs to the field of LED power supply, in particular to a driving circuit of LED driving power supply, aiming at the problems that the prior LED driving power supply can generate a large amount of heat when in use, and the LED driving power supply can be damaged if the heat is not dissipated in time, and the service life of the LED driving power supply is reduced, the driving circuit comprises a driving power supply which comprises a control power supply, an external power supply is connected on the control power supply, the pin L of the control power supply is electrically connected with the anode of a light-emitting diode D1, the cathode of the light-emitting diode is electrically connected with the anode of a resistor R1 and the anode of a light-emitting diode D2, the utility model has reasonable structure and simple operation, the intelligent switch can be powered by the control power supply, the first conducting strip and the second conducting strip can be attached by the rising of a sliding plate, and then the heat dissipating fan can work, and the heat can be dissipated rapidly, the internal electronic elements are effectively protected, and the service life of the driving power supply is prolonged.

Description

Drive circuit of LED drive power supply

Technical Field

The utility model relates to a LED power technical field especially relates to a LED drive power supply's drive circuit.

Background

The LED driving power supply is a power supply converter which converts power supply into specific voltage and current to drive the LED to emit light, and the LED light source is a novel light source which is widely applied and rapidly developed at present, and has the advantages of energy conservation, high efficiency, small size, long service life, high response speed, low driving voltage, excellent shock resistance and the like compared with the traditional light source.

However, when the LED driving power supply is used, a large amount of heat is generated, and if the heat is not dissipated in time, the LED driving power supply is damaged, and the service life of the LED driving power supply is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving and having LED drive power supply among the prior art and can produce a large amount of heats when using, if not in time can make the LED drive power supply cause the injury with the heat effluvium, reduce its life's shortcoming, and the drive circuit of a LED drive power supply who proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a drive circuit of an LED drive power supply comprises a drive power supply, wherein the drive power supply comprises a control power supply, the control power supply is connected with an external power supply, a pin L of the control power supply is electrically connected with an anode of a light-emitting diode D1, a cathode of the light-emitting diode is electrically connected with an anode of a resistor R1 and an anode of a light-emitting diode D2, the pin L is electrically connected with an anode of a capacitor C, an anode of the capacitor C is electrically connected with a cathode of the light-emitting diode D2 and an anode of a resistor R2, an anode of the capacitor C is electrically connected with an anode of an intelligent switch, a cathode of the intelligent switch is electrically connected with an anode, the cathode of the heat dissipation fan is electrically connected with the anode of a resistor R3, the cathode of a resistor R3 is electrically connected with the anode of a light emitting diode D3, the cathode of a resistor R1 and the cathode of a resistor R2 are electrically connected with a pin N of a control power supply, and the cathode of a light emitting diode D3 is electrically connected with the pin N.

Preferably, the driving power supply is provided with an installation cavity, a sliding plate is connected in the installation cavity in a sliding manner, the top of the sliding plate is symmetrically and rotatably connected with two connecting rods, the top of the installation cavity is symmetrically and slidably connected with two moving plates, one end of each connecting rod is respectively and rotatably connected with one side, far away from each other, of each moving plate, one side, close to each other, of each moving plate is respectively and fixedly connected with a first conducting plate and a second conducting plate, the inner wall of one side of the installation cavity is fixedly connected with a heat dissipation fan, the first conducting plate is electrically connected with the heat dissipation fan, the bottom of one moving plate is fixedly connected with an intelligent switch, the intelligent switch is electrically connected with the second conducting plate, one side of the driving power supply is provided with a heat dissipation hole, the sliding plate ascends to enable the first conducting plate and, the heat can be quickly dissipated, the internal electronic elements are effectively protected, and the service life of the driving power supply is prolonged.

Preferably, two first springs are symmetrically and fixedly connected to the inner wall of the top of the mounting cavity, the bottom ends of the two first springs are fixedly connected to the top of the sliding plate, and the two first springs are arranged to provide reset power for the sliding plate.

Preferably, the quantity of louvre is three to five, and the equal fixedly connected with filter screen in a plurality of louvres sets up the filter screen, can prevent that external dust from getting into the installation cavity indoor, can make the electronic component in the drive power supply can not receive the injury of dust, further improves drive power supply's life.

Preferably, two chutes are symmetrically formed in the inner wall of the top of the mounting cavity, the top of each of the two movable plates respectively extends into the two chutes and is respectively connected with the inner walls of the two chutes in a sliding manner, the second springs are fixedly connected to two sides of the movable plate, one ends of the two second springs, which are far away from each other, are respectively fixedly connected with the inner walls of the two sides of the chutes, the chutes are formed, the movable plate can stably move, the position deviation cannot occur, and the second springs can provide reset power for the movable plate.

The utility model discloses in, a LED drive power supply's drive circuit, through the rising of sliding plate, can make two movable plates make first conducting strip and second conducting strip laminate mutually respectively under the effect of two connecting rods, and then make the intelligence switch closed, for the heat dissipation fan supplies power, the heat dissipation fan can dispel the heat in the drive power supply, can effectually protect inside electronic component, increase drive power supply's life.

Due to the arrangement of the filter screen, external dust can be prevented from entering the installation cavity, electronic elements in the driving power supply can not be damaged by the dust, and the service life of the driving power supply is further prolonged.

The utility model discloses rational in infrastructure, easy operation can supply power for intelligence switch through control power supply, rises through the sliding plate, can make first conducting strip and second conducting strip laminate mutually, and then can make the heat dissipation fan carry out work, can radiate the heat fast, the effectual inside electronic component that has protected increases drive power supply's life.

Drawings

Fig. 1 is a schematic structural circuit diagram of a driving circuit of an LED driving power supply according to the present invention;

fig. 2 is a schematic main sectional structural diagram of a driving circuit of an LED driving power supply according to the present invention;

fig. 3 is an enlarged schematic structural diagram of a part a of a driving circuit of an LED driving power supply according to the present invention.

In the figure: the intelligent switch comprises a driving power supply 1, an installation cavity 2, a sliding plate 3, a connecting rod 4, a moving plate 5, a first conducting plate 6, a second conducting plate 7, an intelligent switch 8, a heat dissipation fan 9, a filter screen 10, a first spring 11, a sliding chute 12, a sliding rod 13, a second spring 14 and heat dissipation holes 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example one

Referring to fig. 1-3, a driving circuit of an LED driving power supply includes a driving power supply 1, the driving power supply 1 includes a control power supply, the control power supply is connected to an external power supply, a pin L of the control power supply is electrically connected to an anode of a light emitting diode D1, a cathode of the light emitting diode is electrically connected to an anode of a resistor R1 and an anode of a light emitting diode D2, the pin L is electrically connected to an anode of a capacitor C, an anode of the capacitor C is electrically connected to a cathode of a light emitting diode D2 and an anode of a resistor R2, an anode of the capacitor C is electrically connected to an anode of an intelligent switch 8, a cathode of the intelligent switch 8 is electrically connected to an anode of a heat dissipating fan 9, a cathode of the heat dissipating fan 9 is electrically connected to an anode of a resistor R3, a cathode of a resistor R3 is electrically connected to an anode of a light emitting diode D3, a pin N of, the cathode of the led D3 is electrically connected to the pin N.

Example two

Wherein, through the rising of the sliding plate 3, the two moving plates 5 can respectively enable the first conducting strip 6 and the second conducting strip 7 to be jointed, and then the intelligent switch 8 is closed to supply power for the heat dissipation fan 9, the heat dissipation fan 9 can dissipate the heat in the driving power supply 1, the internal electronic element can be effectively protected, the service life of the driving power supply 1 is prolonged, due to the arrangement of the filter screen 10, the external dust can be prevented from entering the installation cavity 2, the electronic element in the driving power supply 1 can not be damaged by the dust, the service life of the driving power supply 1 is further prolonged, the utility model has the advantages of reasonable structure and simple operation, the intelligent switch 8 can be powered through the control power supply, through the rising of the sliding plate 3, the first conducting strip 6 and the second conducting strip 7 can be jointed, and then the heat dissipation fan 9 can work, the heat can be quickly dissipated, the internal electronic elements are effectively protected, and the service life of the driving power supply 1 is prolonged.

In the utility model, a driving power supply 1 is provided with a mounting cavity 2, a sliding plate 3 is slidably connected in the mounting cavity 2, the top of the sliding plate 3 is symmetrically and rotatably connected with two connecting rods 4, the top of the mounting cavity 2 is symmetrically and slidably connected with two moving plates 5, one end of each connecting rod 4 is respectively and rotatably connected with one side of each moving plate 5, which is close to each other, is respectively and fixedly connected with a first conducting plate 6 and a second conducting plate 7, a heat radiation fan 9 is fixedly connected on the inner wall of one side of the mounting cavity 2, the first conducting plate 6 is electrically connected with the heat radiation fan 9, the bottom of one moving plate 5 is fixedly connected with an intelligent switch 8, the intelligent switch 8 is electrically connected with the second conducting plate 7, one side of the driving power supply 1 is provided with a heat radiation hole 15, the first conducting plate 6, and then can make heat dissipation fan 9 work, can dispel the heat fast, the effectual inside electronic component of protection increases drive power supply 1's life.

The utility model discloses in, two first springs 11 of symmetry fixedly connected with on the top inner wall of installation cavity 2, the bottom of two first springs 11 all with the top fixed connection of sliding plate 3, set up two first springs 11, can provide the power that resets for sliding plate 3.

The utility model discloses in, louvre 15's quantity is three to five, and equal fixedly connected with filter screen 10 in a plurality of louvres 15 sets up filter screen 10, can prevent that external dust from getting into installation cavity 2 in, can make the electronic component in driving power supply 1 can not receive the injury of dust, further improves driving power supply 1's life.

The utility model discloses in, two spouts 12 have been seted up to the symmetry on the top inner wall of installation cavity 2, the top of two movable plates 5 extend to respectively in two spouts 12 and respectively with the top inner wall sliding connection of two spouts 12, the equal fixedly connected with second spring 14 in both sides of movable plate 5, the one end that two second springs 14 kept away from each other respectively with the both sides inner wall fixed connection of spout 12, set up spout 12, can make movable plate 5 can steady movement, can not take place the offset, second spring 14 can provide the power that resets for movable plate 5.

In the utility model, an external power supply can be introduced into a control power supply through the control power supply, the intelligent switch 8 is powered through the light emitting diode D1 and the capacitor C, the current can be reduced through the resistor R1 and the light emitting diode D2 and the resistor R2, the overload protection can be carried out on the heat dissipation fan 9 through the resistor R3 and the light emitting diode D3, when a large amount of hot air is generated in the driving power supply 1, the hot air can drive the sliding plate 3 to move upwards, at the moment, the two first springs 11 can be compressed, the sliding plate 3 can respectively enable the two moving plates 5 to move towards the mutually close direction through the two connecting rods 4, the two moving plates 5 respectively enable the first conducting plate 6 and the second conducting plate 7 to move towards the mutually close direction and be jointed, at the moment, the first conducting plate 6, the second conducting plate 7, the intelligent switch 8 and the heat dissipation fan 9 can form a closed circuit, and further the heat dissipation, the heat dissipation fan 9 can be with the heat in the drive power supply 1 through a plurality of louvres 15 effluvium, and after the heat effluvium, the sliding plate 3 can move down under the power that resets of first spring 11, and then can make first conducting strip 6 and the separation of second conducting strip 7, and at this moment intelligence switch 8 can be opened, and the heat dissipation fan 9 can stop the heat dissipation, can the energy saving, and filter screen 10 can prevent that the dust from getting into installation cavity 2 simultaneously in, has protected electrical components.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A driving circuit of an LED driving power supply comprises a driving power supply (1), and is characterized in that the driving power supply (1) comprises a control power supply, an external power supply is connected to the control power supply, a pin L of the control power supply is electrically connected with an anode of a light-emitting diode D1, a cathode of the light-emitting diode is electrically connected with an anode of a resistor R1 and an anode of a light-emitting diode D2, the pin L is electrically connected with an anode of a capacitor C, an anode of the capacitor C is electrically connected with a cathode of a light-emitting diode D2 and an anode of a resistor R2, an anode of the capacitor C is electrically connected with an anode of an intelligent switch (8), a cathode of the intelligent switch (8) is electrically connected with an anode of a heat dissipation fan (9), a cathode of the heat dissipation fan (9) is electrically connected with an anode of a resistor R3, a cathode of a resistor R3 is electrically connected with an anode of a light-emitting diode D3, a pin N of the, the cathode of the led D3 is electrically connected to the pin N.

2. The driving circuit of the LED driving power supply according to claim 1, wherein a mounting cavity (2) is arranged on the driving power supply (1), a sliding plate (3) is slidably connected in the mounting cavity (2), two connecting rods (4) are rotatably connected to the top of the sliding plate (3) in a symmetrical manner, two moving plates (5) are slidably connected to the top of the mounting cavity (2) in a symmetrical manner, one ends of the two connecting rods (4) are rotatably connected to the sides of the two moving plates (5) far away from each other respectively, a first conducting plate (6) and a second conducting plate (7) are fixedly connected to the sides of the two moving plates (5) close to each other respectively, a heat dissipation fan (9) is fixedly connected to the inner wall of one side of the mounting cavity (2), the first conducting plate (6) is electrically connected to the heat dissipation fan (9), and an intelligent switch (8) is fixedly connected to the bottom of one moving plate, the intelligent switch (8) is electrically connected with the second conducting strip (7), and a radiating hole (15) is formed in one side of the driving power supply (1).

3. The driving circuit of an LED driving power supply according to claim 2, wherein two first springs (11) are symmetrically and fixedly connected to the inner wall of the top of the mounting chamber (2), and the bottom ends of the two first springs (11) are fixedly connected to the top of the sliding plate (3).

4. The driving circuit of the LED driving power supply according to claim 2, wherein the number of the heat dissipation holes (15) is three to five, and a filter screen (10) is fixedly connected in each of the plurality of heat dissipation holes (15).

5. The driving circuit of the LED driving power supply according to claim 2, wherein two sliding grooves (12) are symmetrically formed in the top inner wall of the mounting cavity (2), the top portions of the two moving plates (5) respectively extend into the two sliding grooves (12) and are respectively connected with the top inner walls of the two sliding grooves (12) in a sliding manner, the two sides of the moving plate (5) are both fixedly connected with second springs (14), and the ends, far away from each other, of the two second springs (14) are respectively fixedly connected with the inner walls of the two sides of the sliding grooves (12).