CN213421031U

CN213421031U - LED driving device

Info

Publication number: CN213421031U
Application number: CN202022483005.8U
Authority: CN
Inventors: 连家滨
Original assignee: Fujian Brisun Lighting Electrical Appliance Co ltd
Current assignee: Fujian Brisun Lighting Electrical Appliance Co ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-06-11
Anticipated expiration: 2030-11-02

Abstract

The invention relates to the technical field of LED illumination, and discloses an LED driving device, which comprises a fixed box, wherein the fixed box is a rectangular box, the inside of the fixed box is hollow, an upper cover which can be mutually connected in a closed manner is arranged above the fixed box, in the invention, when a power supply driving plate is positioned at outdoor work for use, the fixed box and the upper cover can be fixedly connected with an external fixed structure through a heat dissipation rod, two air inlet pipes are arranged on the fixed box, when the external wind power is larger, the wind power can directly enter the fixed box through the air inlet pipes to be contacted with two air guide plates in the fixed box, at the moment, two fan blades can blow and dissipate the heat of the whole part of the power supply driving plate in the fixed box under the driving acceleration of the air guide plates and a driving motor, and waterproof and dustproof effects can also be carried out on waterproof and dustproof effects on waterproof and cotton blocking on the air inlet pipes, so that the fan blades can generate driving force to dissipate, the service life of the power supply driving board is prolonged.

Description

LED driving device

Technical Field

The invention relates to the technical field of LED illumination, in particular to an LED driving device.

Background

The LED is one of the most popular light sources in development today, and has a wide application range, and the LED has single conductivity, so the LED driver is an essential component of the LED. In the conventional LED driver, the driving circuit includes a rectifying and filtering circuit, which requires a relatively large capacitance to smooth the rectified output voltage to an allowable range. The electrolytic capacitor is used in the existing LED drive circuit, the electrolytic capacitor has the greatest advantage of good economic performance, the service life of the electrolytic capacitor influences the service life of the drive circuit, the service life of the electrolytic capacitor depends on the temperature inside the electrolytic capacitor, and the temperature rise is the greatest factor influencing the service life of an LED driver.

Disclosure of Invention

Technical problem to be solved

The present invention mainly solves the technical problems of the prior art, and provides an LED driving device.

(II) technical scheme

In order to achieve the purpose, the invention adopts the following technical scheme that the LED driving device comprises a fixed box, wherein the fixed box is a rectangular box, the inside of the fixed box is hollow, an upper cover which can be mutually connected in a closed manner is arranged above the fixed box, the upper cover is a hollow end cover in the rectangular interior, a power supply driving plate is arranged between the fixed box and the upper cover, the lower wall surface of the inner part of the fixed box and the upper wall surface of the inner part of the upper cover are respectively and fixedly provided with a heat transfer sheet which is a rectangular sheet, the upper wall surface of the power supply driving plate is fixedly provided with two heat transfer plates which are in mirror symmetry, the heat transfer plates are rectangular plate-shaped, the lower wall surface of the power supply driving plate is attached to the upper wall surface of the heat transfer sheet, the fixed box and the upper cover are movably clamped together through an external clamping structure, the upper wall surfaces of the two heat transfer plates are respectively and movably attached to the lower wall surface, the power supply comprises a power supply drive board and is characterized in that two power lines which are in mirror symmetry are electrically connected to the power supply drive board, the left ends of the power lines respectively penetrate through a fixing box, a heat dissipation rod penetrates through the lower wall surface of the fixing box, the heat dissipation rod is in a circular rod shape, and the lower wall surface of a heat transfer piece on the fixing box is fixedly connected with the upper end of the heat dissipation rod.

Preferably, the upper wall surface of the upper cover penetrates through a radiating fin, the upper wall surface of the heat transfer fin on the upper cover is attached to the lower wall surface of the radiating fin, two mirror-image-symmetric adsorption cotton pads are fixedly mounted on one side wall surface, close to the upper cover, of the fixed box respectively, the adsorption cotton pads are rectangular hollow adsorption cotton, and two mirror-image-symmetric circular grooves are formed in the front side wall surface and the rear side wall surface of the fixed box respectively.

Preferably, air inlet pipes are respectively arranged in the two circular grooves, the air inlet pipes are in a circular hollow tubular shape, two waterproof baffle cotton which are in mirror symmetry are respectively arranged in the air inlet pipes, the waterproof baffle cotton is in a circular cotton absorbing shape, the outer wall surfaces of the two waterproof baffle cotton are respectively fixedly connected with the inner wall surfaces of the two air inlet pipes, and a placing groove is formed in the right wall surface of the inner part of the fixing box.

Preferably, a driving motor is arranged in the placing groove on the fixing box, when an output shaft on the driving motor runs under external driving force, the driving motor can accelerate and maintain the force of the driving motor, when the driving force on the output shaft disappears, the driving motor slowly stops, the outer wall surface of the driving motor is fixedly connected with the inner wall of the placing groove on the fixing box, and a rotating shaft is fixedly connected with the output shaft at the left end of the driving motor.

Preferably, the outer wall surface of the rotating shaft is fixedly provided with two air deflectors in mirror symmetry, the air deflectors are rectangular plates, two sets of air guide grooves in mirror symmetry are respectively formed in the front side wall surface and the rear side wall surface of each air deflector, each air guide groove is in the shape of an oval groove, the rotating shaft is fixedly connected with two fan blades in mirror symmetry through a ring block, and the two air inlet pipes correspond to the two air deflectors.

Advantageous effects

The invention provides an LED driving device. The method has the following beneficial effects:

(1) when the power supply driving board is used in outdoor work, the fixing box and the upper cover can be fixedly connected with an external fixing structure through the heat dissipation rod, the fixing box is provided with two air inlet pipes, the air inlet pipes correspond to the air deflectors in the fixing box, at the moment, when external wind power is large, the wind power can directly enter the fixing box through the air inlet pipes to be contacted with the two air deflectors in the fixing box, the air deflectors can move to drive the fan blades on the rotating shaft to rotate after being driven by the wind power, and the output shaft end on the driving motor can accelerate the rotating shaft and ensure the durability of the rotating shaft when the rotating shaft rotates, at the moment, the two fan blades can blow and dissipate heat of the whole part of the power supply driving board in the fixing box under the driving acceleration of the air deflectors and the driving motor, and waterproof fender cotton on the air-supply line can also be rain-proof and dustproof to reach and produce through external natural factor and make the flabellum produce drive power and dispel the heat to power drive board, prolong the life's of this power drive board effect.

(2) When the power supply driving board is installed on the LED driving device, the power supply driving board can be placed between the fixing box and the upper cover for driving protection, the power line on the power supply driving board can penetrate through the fixing box to be electrically connected with an external lamp source, after the power supply driving board is placed on the heat transfer sheet in the fixing box, the fixing box and the upper cover can be connected together in a closed manner, two adsorption cotton pads on one side wall surface, close to each other, of the fixing box and the upper cover can be mutually pressed and attached together, the fixing box and the upper cover can be pressed and clamped together through an external clamping mechanism, when the device is located in outdoor work, when rainwater permeates into the closed position on the fixing box and the upper cover, the rainwater can be absorbed by the adsorption cotton pads when passing through the adsorption cotton pads, and at the time, the two adsorption cotton pads can prevent the rainwater from permeating into the fixing box to cause circuit damage to the power supply driving board, thereby reach the effect that prolongs this power drive plate life.

(3) The LED driving device comprises a fixed box, a power supply driving board, a heat conducting plate, a heat radiating rod, an LED driving device and a control circuit, wherein after the power supply driving board in the fixed box supplies power for an external light source for a long time, the temperature of the inside of the fixed box can rise, the power supply driving board is arranged on the heat conducting plate, the power supply driving board is connected with the heat conducting plate on an upper cover through the two heat conducting plates, the two heat conducting plates and the heat conducting plate both have heat conductivity, the temperature of the power supply driving board can be transmitted to the fixed box and the two heat conducting plates on the upper cover through the heat conducting plates and the fixed box, the fixed box is connected with an external fixed structure through the heat radiating rod, the temperature of the heat conducting plate can be transmitted to the heat radiating rod to the outside in one step, the temperature of the heat conducting plate on the upper cover can be transmitted to, the temperature of the power supply driving board is reduced, so that the effects of automatically radiating and prolonging the service life of the power supply driving board are achieved.

Drawings

FIG. 1 is an overall structural view of the present invention;

FIG. 2 is a partial schematic view of the power driver board of the present invention;

FIG. 3 is an enlarged view of A of FIG. 2 according to the present invention;

FIG. 4 is a partial schematic view of a heat-dissipating stud according to the present invention.

Illustration of the drawings:

1. a fixing box; 2. an upper cover; 3. a power supply driving board; 4. a heat transfer sheet; 5. a heat conducting plate; 6. a heat dissipation rod; 7. a heat sink; 8. adsorbing the cotton pad; 9. an air inlet pipe; 10. a drive motor; 11. a rotating shaft; 12. an air deflector; 13. a wind guide groove; 14. a ring block; 15. a fan blade; 16. a power line; 17. waterproof fender cotton.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.

Example (b): an LED driving device is disclosed, as shown in fig. 1-4, comprising a fixed box 1, the fixed box 1 is a rectangular box, the inside of the fixed box 1 is hollow, an upper cover 2 which can be mutually connected in a closed manner is arranged above the fixed box 1, the upper cover 2 is a hollow end cover in the rectangular interior, a power supply driving board 3 is arranged between the fixed box 1 and the upper cover 2, the power supply driving board 3 is of a conventional structure, which is not described herein, a heat transfer sheet 4 is respectively fixedly arranged on the inner lower wall surface of the fixed box 1 and the inner upper wall surface of the upper cover 2, the heat transfer sheet 4 is a rectangular sheet, two heat transfer plates 5 which are in mirror symmetry are fixedly arranged on the upper wall surface of the power supply driving board 3, the heat transfer plates 5 are rectangular plate-shaped, the lower wall surface of the power supply driving board 3 is attached to the upper wall surface of the heat transfer sheet 4, the fixed box 1 and the upper cover 2 are movably clamped together through an external clamping structure, the upper wall surfaces of the two heat, the power supply driving board 3 is electrically connected with two power lines 16 with mirror symmetry, the power lines 16 are of a conventional structure and are not described herein, the left ends of the two power lines 16 respectively penetrate through the fixing box 1, the lower wall surface of the fixing box 1 penetrates through the heat dissipation rod 6, the heat dissipation rod 6 is of a round rod shape, the lower wall surface of the heat transfer sheet 4 on the fixing box 1 is fixedly connected with the upper end of the heat dissipation rod 6, the upper wall surface of the upper cover 2 penetrates through the heat dissipation sheet 7, the upper wall surface of the heat transfer sheet 4 on the upper cover 2 is attached to the lower wall surface of the heat dissipation sheet 7, two adsorption cotton pads 8 with mirror symmetry are respectively and fixedly installed on one side wall surface of the fixing box 1 and one side wall surface of the upper cover 2 which are close to each other, the adsorption cotton pads 8 are rectangular hollow adsorption cotton, two circular grooves with mirror symmetry are respectively formed on the front and rear side wall surfaces of the fixing box 1, air inlet, two waterproof baffle cottons 17 which are in mirror symmetry are respectively arranged inside the two air inlet pipes 9, the waterproof baffle cottons 17 are circular absorbing cottons, the outer wall surfaces of the two waterproof baffle cottons 17 are respectively and fixedly connected with the inner wall surfaces of the two air inlet pipes 9, the right wall surface inside the fixed box 1 is provided with a placing groove, a driving motor 10 is arranged inside the placing groove on the fixed box 1, when an output shaft on the driving motor 10 runs under external driving force, the driving motor 10 can accelerate and keep self force, when the driving force on the output shaft disappears, the driving motor 10 can slowly stand still, the outer wall surface of the driving motor 10 is fixedly connected with the inner wall of the placing groove on the fixed box 1, a rotating shaft 11 is fixedly connected with the output shaft at the left end of the driving motor 10, two air deflectors 12 which are in mirror symmetry are fixedly arranged on the outer wall surface of the rotating shaft 11, the air deflectors 12 are rectangular plate-shaped, two sets of air, the air guide groove 13 is in an oval groove shape, the rotating shaft 11 is fixedly connected with two mirror-image-symmetric fan blades 15 through a ring block 14, and the two air inlet pipes 9 correspond to the two air guide plates 12.

The working principle of the invention is as follows:

first place power drive plate 3 inside fixed box 1 and fixed box 1 on heat transfer piece 4 laminating together, at this moment with fixed box 1 and upper cover 2 closed link together, be provided with absorption cotton pad 8 on fixed box 1 and the upper cover 2, two absorption cotton pads 8 alright absorb when external rainwater gets into, when power drive plate 3 during long-time work, the temperature alright in power drive plate 3 can transmit to cooling rod 6 and fin 7 through heat transfer piece 4 and cool down gradually, when external wind-force gets into fixed box 1 inside through air-supply line 9 and when aviation baffle 12 acted on, at this moment two aviation baffles 12 will produce the motion under the drive of external factor and make flabellum 15 rotatory to power drive plate 3 heat dissipation of blowing, and waterproof fender cotton 17 can absorb the rainwater of external infiltration and filter the dust in the outside air.

The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a LED drive arrangement, includes fixed box (1), the top of fixed box (1) is provided with upper cover (2) that can the mutual closed link together, be provided with power drive board (3) between fixed box (1) and upper cover (2), its characterized in that: the inner lower wall surface of the fixed box (1) and the inner upper wall surface of the upper cover (2) are respectively and fixedly provided with a heat transfer sheet (4), the upper wall surface of the power supply drive plate (3) is fixedly provided with two mirror-symmetric heat conduction plates (5), the power supply drive plate (3) is electrically connected with two mirror-symmetric power lines (16), the lower wall surface of the fixed box (1) penetrates through a heat dissipation rod (6), one side wall surface of the fixed box (1) close to the upper cover (2) is respectively and fixedly provided with two mirror-symmetric adsorption cotton pads (8), the front side wall surface and the rear side wall surface of the fixed box (1) are respectively provided with two mirror-symmetric circular grooves, the insides of the two circular grooves are respectively provided with an air inlet pipe (9), the inner right wall surface of the fixed box (1) is provided with a placing groove, and a driving motor (10) is arranged inside the placing groove on the fixed box (, the left end output shaft end of the driving motor (10) is fixedly connected with a rotating shaft (11), two air guide plates (12) which are in mirror symmetry are fixedly installed on the outer wall surface of the rotating shaft (11), and two sets of air guide grooves (13) which are in mirror symmetry are respectively formed in the front side wall surface and the rear side wall surface of each of the two air guide plates (12).

2. An LED driving apparatus according to claim 1, wherein: the lower wall of power drive plate (3) with the last wall laminating of heat transfer piece (4) is in the same place, fixed box (1) and upper cover (2) are in the same place through outside joint structure activity joint, two the last wall of heat transfer plate (5) respectively with the lower wall activity laminating of heat transfer piece (4) on upper cover (2).

3. An LED driving apparatus according to claim 1, wherein: the lower wall surface of the heat transfer sheet (4) on the fixed box (1) is fixedly connected with the upper end of the heat dissipation rod (6), the upper wall surface of the upper cover (2) penetrates through the heat dissipation sheet (7), and the upper wall surface of the heat transfer sheet (4) on the upper cover (2) is attached to the lower wall surface of the heat dissipation sheet (7).

4. An LED driving apparatus according to claim 1, wherein: two waterproof retaining cottons (17) which are in mirror symmetry are respectively arranged inside the two air inlet pipes (9), and the outer wall surfaces of the two waterproof retaining cottons (17) are respectively fixedly connected with the inner wall surfaces of the two air inlet pipes (9).

5. An LED driving apparatus according to claim 1, wherein: the outer wall surface of the driving motor (10) is fixedly connected with the inner wall of the placing groove on the fixed box (1).

6. An LED driving apparatus according to claim 1, wherein: the rotating shaft (11) is fixedly connected with two mirror-image-symmetric fan blades (15) through a ring block (14), and the two air inlet pipes (9) correspond to the two air guide plates (12) mutually.