Backlight constant-current boost power supply

Abstract

The utility model belongs to the technical field of constant-current power supplies, and particularly relates to a backlight constant-current boost power supply, which comprises a constant-current power supply box, a box cover is fixed on the top of the constant-current power supply box in a sliding manner, and mounting boxes are fixed on two sides of the constant-current power supply box; an installation groove is formed in the top of the constant-current power box, a wire outlet groove, a water groove and a fixing groove are formed in the bottom of the constant-current power box, a wire outlet hole and a wire inlet hole which penetrate into the wire outlet groove are formed in the top of the wire outlet groove, and cooling fins, a heat conduction aluminum plate, a constant-temperature power source body and a boost converter are fixed in the installation groove. A water pump is mounted in the fixing groove, a constant-temperature refrigeration block is fixed in the water tank, a motor and fan blades are fixed in the mounting box, an annular groove is formed in the outer wall of the mounting groove, and an annular condensation pipe is fixed in the annular groove, so that the constant-temperature power supply main body and the boost converter are cooled; and the voltage output by the constant-temperature power supply main body and the boost converter is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of constant current power supplies, in particular to a backlight constant current boosting power supply. Background Art

[0002] LED backlight has replaced CCFL backlight in LCD TVs due to its advantages of light volume, green environmental protection, low power consumption, high brightness, good color expression, and long life. However, the volt-ampere characteristic of LED is not fixed. The volt-ampere characteristic of LED has the characteristics of negative temperature coefficient, which changes with temperature. A small change in forward voltage will cause a large change in forward current. The change in current will not only affect the service life of LED, but more importantly, it will affect the color spectrum and color temperature of LED, so a constant current boost power supply is needed to ensure the service life of LED backlight. Utility Model Content

[0003] Based on the existing constant current power supply technology problems, the utility model proposes a backlight constant current boost power supply.

[0004] The utility model proposes a backlight constant current boost power supply, comprising a constant current power supply box and a box cover, wherein the box cover is slidably fixed on the top of the constant current power supply box, and installation boxes are fixed on both sides of the constant current power supply box; an installation groove is provided on the top of the constant current power supply box, and a wire outlet groove, a water groove and a fixing groove are provided on the bottom of the constant current power supply box, a wire outlet hole and a wire inlet hole are provided on the top of the wire outlet groove, and the wire outlet hole and the wire inlet hole both penetrate into the interior of the installation groove.

[0005] Preferably, slide rails are fixed on both sides of the top of the constant current power supply box, slide grooves are opened on the opposite sides of the two slide rails, and a card slot is opened in the middle of the slide grooves, a box cover is slidably fixed between the two slide grooves, and card blocks are fixed on both side ends of the box cover, and a pull block is fixed on the side of the box cover away from the card block.

[0006] Through the above technical solution, by providing a sliding box cover, the box cover can be easily opened to perform maintenance and repair on the parts inside the installation slot.

[0007] Preferably, an annular groove is opened inside the constant current power supply box outside the installation groove, and an annular condenser is fixedly installed inside the annular groove, a first connecting pipe is fixedly installed at the water inlet end of the annular condenser, and a third connecting pipe is fixedly installed at the water outlet end of the annular condenser.

[0008] Through the above technical solution, the provision of the annular condenser can cool the inside of the installation groove, thereby ensuring stable output of the parts inside the installation groove.

[0009] Preferably, a constant temperature refrigeration block is fixedly provided inside the water tank, and a third connecting pipe is opened upward from the top of the water tank, and the third connecting pipe extends to the inside of the annular groove, and the second pipe groove extends through the third connecting pipe to the inside of the water tank; a water pump is fixedly provided inside the fixed tank, and a first pipe groove is opened at the top of the fixed tank, and the first pipe groove extends to the inside of the annular groove, and the first connecting pipe extends through the first pipe groove to the inside of the fixed tank and is fixedly connected to the water outlet end of the water pump, and a second connecting pipe is fixedly provided at the water inlet end of the water pump, and the second connecting pipe extends to the inside of the water tank.

[0010] Through the above technical solution, the setting of the water pump and the water tank makes it easy to input water into the condenser tube and then discharge it into the water tank, so that water circulation can be achieved, thereby saving water resources while cooling.

[0011] Preferably, a filter plate is fixedly provided on a side of the installation box away from the constant current power supply box, and a motor is fixedly provided on one side of the filter plate inside the installation box, and a fan blade is fixedly connected to the motor drive shaft, a ventilation groove is opened on the inside of the constant current power supply box, and the ventilation groove passes through the inside of the installation box, and a ventilation baffle is fixedly provided on one side of the ventilation groove close to the inside of the installation groove.

[0012] Through the above technical solution, air can be blown into the installation slot through the motor and the fan blades, so that the cooling effect inside the installation slot is better, thereby making the work of the parts inside the installation slot more stable.

[0013] Preferably, a heat sink fin is fixedly provided in the middle of the bottom of the mounting groove, a heat conducting aluminum plate is fixedly provided on the top of the heat sink fin, a constant current power supply body is fixedly provided on one side of the top of the heat conducting aluminum plate, and a boost converter is fixedly provided on the other side of the top of the heat conducting aluminum plate.

[0014] Through the above technical solution, the boost converter can change the voltage, thereby ensuring the output of different voltages.

[0015] The beneficial effects of the present invention are:

[0016] 1. By arranging a water pump, a water tank, a constant temperature refrigeration block, a heat dissipation fin, a heat conductive aluminum plate, a ring condenser, a motor and a fan blade, the inside of the installation slot can be cooled down, so as to facilitate the stable output of the constant current power supply body and the boost converter fixed inside the installation slot, so as to make the current output stable.

[0017] 2. By providing a box cover, a pull block, a slide groove and a card groove, it is convenient to seal the installation groove, thereby ensuring the safety of the parts inside the installation groove, and it is also convenient to open the installation groove for maintenance and repair of the parts inside the installation groove.

[0018] 3. By setting up a boost converter, the voltage output by the constant current power supply can be changed, so that the voltage output can be as high as required. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the appearance of a backlight constant current boost power supply proposed by the utility model;

[0020] Figure 2 This is an internal top view of a backlight constant current boost power supply proposed by the utility model;

[0021] Figure 3 This is an internal bottom view of a backlight constant current boost power supply proposed by the utility model;

[0022] Figure 4 The utility model is a cross-sectional view of a backlight constant current boost power supply.

[0023] In the figure: 1. constant current power supply box; 2. installation box; 3. slide rail; 4. box cover; 5. pull block; 6. installation slot; 7. slide slot; 8. card slot; 9. outlet slot; 10. water tank; 11. fixed slot; 12. constant temperature refrigeration block; 13. water pump; 14. first connecting pipe; 15. second connecting pipe; 16. outlet hole; 17. inlet hole; 18. annular groove; 19. ventilation groove; 20. ventilation baffle; 21. filter plate; 22. motor; 23. fan blade; 24. constant current power supply body; 25. boost converter; 26. annular condenser; 27. first pipe slot; 28. second pipe slot; 29. ​​third connecting pipe; 31. heat sink fin; 32. thermal conductive aluminum plate. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Embodiment 1:

[0026] Reference Figure 1-Figure 4A backlight constant current boost power supply comprises a constant current power supply box 1 and a box cover 4, wherein the box cover 4 is slidably fixed on the top of the constant current power supply box 1, and mounting boxes 2 are fixed on both sides of the constant current power supply box 1; a mounting slot 6 is provided on the top of the constant current power supply box 1, and a wire outlet slot 9, a water tank 10 and a fixing slot 11 are provided on the bottom of the constant current power supply box 1, a wire outlet hole 16 and a wire inlet hole 17 are provided on the top of the wire outlet slot 9, and the wire outlet hole 16 and the wire inlet hole 17 are both penetrated into the mounting slot 6; both sides of the top of the constant current power supply box 1 are fixedly provided There is a slide rail 3, and two slide rails 3 are provided with slide grooves 7 on opposite sides, and a clamping groove 8 is provided in the middle of the slide groove 7, a box cover 4 is slidably fixed between the two slide grooves 7, and clamping blocks are fixed on both side ends of the box cover 4, and a pull block 5 is fixed on the side of the box cover 4 away from the clamping block, so that the box cover 4 can slide inside the slide groove 7, and the clamping block slides inside the clamping groove 8, and the box cover 4 can be easily pulled out of the slide rail 3 through the clamping block, so as to facilitate the sealing of the installation groove 6 and the maintenance and repair of the parts inside the installation groove.

[0027] Embodiment 2:

[0028] In this embodiment, refer to Figure 1-Figure 4On the basis of Example 1, an annular groove 18 is opened inside the constant current power supply box 1 outside the installation groove 6, and an annular condenser 26 is fixedly installed inside the annular groove 18, a first connecting pipe 14 is fixedly installed at the water inlet end of the annular condenser 26, and a third connecting pipe 29 is fixedly installed at the water outlet end of the annular condenser 26. A constant temperature refrigeration block 12 is fixedly installed inside the water tank 10, and a third connecting pipe 29 is opened upward at the top of the water tank 10, and the third connecting pipe 29 extends to the inside of the annular groove 18, and the second pipe groove 28 extends through the third connecting pipe 29 to the inside of the water tank 10; a water pump 13 is fixedly installed inside the fixed groove 11, and a first pipe groove 27 is opened at the top of the fixed groove 11, and the first pipe groove 27 extends to the inside of the annular groove 18, and the first connecting pipe 14 extends through the first pipe groove 27 to the inside of the fixed groove 11 and connects to the fixed groove 11. The water outlet of the water pump 13 is fixedly connected, and the water inlet of the water pump 13 is fixedly provided with a second connecting pipe 15, and the second connecting pipe 15 extends into the inside of the water tank 10; thereby, the water pump 13 can extract the water inside the water tank 10 to the inside of the annular condenser 26, so as to cool the inside of the installation tank 6, and the arrangement of the water pump 13 and the water tank 10 enables the water to be recycled, thereby saving water resources; a filter plate 21 is fixedly provided on the side of the installation box 2 away from the constant current power supply box 1, and one side of the filter plate 21 is fixedly provided inside the installation box 2 A motor 22 is fixedly provided, and the drive shaft of the motor 22 is fixedly connected with a fan blade 23. A ventilation slot 19 is opened inside the constant current power supply box 1, and the ventilation slot 19 passes through the inside of the installation box 2, and a ventilation baffle 20 is fixedly provided inside the ventilation slot 19 near the inside of the installation slot 6, and the annular condenser 26 is between the fan blade 23 and the ventilation baffle 20, so that the wind blown by the fan blade 23 can pass through the annular condenser 26 to the inside of the installation slot 6, so that the cooling effect on the inside of the installation slot 6 is better; a heat sink is fixedly provided in the middle of the bottom of the installation slot 6 Fins 31, a heat-conducting aluminum plate 32 is fixedly provided on the top of the heat-conducting aluminum plate 32, and a constant-current power supply body 24 is fixedly provided on one side of the top of the heat-conducting aluminum plate 32, and a boost converter 25 is fixedly provided on the other side of the top of the heat-conducting aluminum plate 32. The cooperation between the heat-conducting fins 31 and the heat-conducting aluminum plate 32 can enable the heat emitted by the constant-current power supply body 24 and the boost converter 25 to be conducted away, and can ensure the heat dissipation effect of the constant-current power supply body 24 and the boost converter 25, thereby ensuring the stability of the output voltage of the constant-current power supply body 24 and the boost converter 25.

[0029] Working principle: When in use, when the constant current power supply body 24 is outputting, the water pump 13 is started, so that the water pump 13 draws water from the inside of the water tank 10 to the inside of the annular condenser 26, thereby cooling the outer wall of the installation groove 6, and when the water moves inside the annular condenser 26, it will pass through the third connecting pipe 29 and be discharged into the inside of the water tank 10 again, thereby realizing the circulation of water cooling, and while the water pump 13 draws water, the motor 22 drives the fan blades 23 to rotate, so that the inside of the installation groove 6 can be blown, and the wind blown by the fan blades 23 will pass through the annular condenser 26 and then enter the installation groove 6, so that the cooling effect on the inside of the installation groove 6 is better, and the setting of the heat dissipation fins 31 and the heat-conducting aluminum plate 32 makes the constant current power supply body 24 fixed on the top of the heat-conducting aluminum plate 32, so that the heat generated by the constant current power supply body 24 when working can also be dissipated through the heat dissipation fins 31 and the heat-conducting aluminum plate 32, thereby ensuring the stability of the output voltage of the constant current power supply body 24, and setting the boost converter 25, so that the boost converter 25 can change the voltage output by the constant current power supply body 24, so that it is convenient to output as much voltage as needed.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A backlight constant current boost power supply, comprising a constant current power supply box (1) and a box cover (4), characterized in that: A box cover (4) is slidably fixed on the top of the constant current power supply box (1), and mounting boxes (2) are fixed on both sides of the constant current power supply box (1); a mounting groove (6) is provided on the top of the constant current power supply box (1), and a wire outlet groove (9), a water groove (10) and a fixing groove (11) are provided on the bottom of the constant current power supply box (1); a wire outlet hole (16) and a wire inlet hole (17) are provided on the top of the wire outlet groove (9), and both the wire outlet hole (16) and the wire inlet hole (17) penetrate into the interior of the mounting groove (6).

2. A backlight constant current boost power supply according to claim 1, characterized in that: Slide rails (3) are fixedly provided on both sides of the top of the constant current power supply box (1), and a slide groove (7) is provided on the opposite side of the two slide rails (3), and a clamping groove (8) is provided in the middle of the slide groove (7), a box cover (4) is slidably fixed between the two slide grooves (7), and clamping blocks are fixedly provided on both side ends of the box cover (4), and a pull block (5) is fixedly provided on the side of the box cover (4) away from the clamping block.

3. The backlight constant current boost power supply according to claim 1, characterized in that: An annular groove (18) is provided inside the constant current power supply box (1) outside the installation groove (6), and an annular condenser tube (26) is fixedly provided inside the annular groove (18), a first connecting tube (14) is fixedly provided at a water inlet end of the annular condenser tube (26), and a third connecting tube (29) is fixedly provided at a water outlet end of the annular condenser tube (26).

4. A backlight constant current boost power supply according to claim 3, characterized in that: A constant temperature refrigeration block (12) is fixedly arranged inside the water tank (10), and a third connecting pipe (29) is opened upward at the top of the water tank (10), and the third connecting pipe (29) extends into the inside of the annular groove (18), and the second pipe groove (28) extends through the third connecting pipe (29) to the inside of the water tank (10); a water pump (13) is fixedly arranged inside the fixed groove (11), and a first pipe groove (27) is opened at the top of the fixed groove (11), and the first pipe groove (27) extends into the inside of the annular groove (18), and the first connecting pipe (14) extends through the first pipe groove (27) to the inside of the fixed groove (11) and is fixedly connected to the water outlet of the water pump (13), and a second connecting pipe (15) is fixedly arranged at the water inlet of the water pump (13), and the second connecting pipe (15) extends into the inside of the water tank (10).

5. The backlight constant current boost power supply according to claim 1, characterized in that: A filter plate (21) is fixedly provided on a side of the installation box (2) away from the constant current power supply box (1), and a motor (22) is fixedly provided on one side of the filter plate (21) inside the installation box (2), and a fan blade (23) is fixedly connected to the drive shaft of the motor (22), a ventilation slot (19) is opened on the inside of the constant current power supply box (1), and the ventilation slot (19) passes through the inside of the installation box (2), and a ventilation baffle (20) is fixedly provided on a side of the ventilation slot (19) close to the inside of the installation slot (6).

6. The backlight constant current boost power supply according to claim 1, characterized in that: A heat dissipation fin (31) is fixedly provided at the middle of the bottom of the installation groove (6), a heat conduction aluminum plate (32) is fixedly provided at the top of the heat dissipation fin (31), a constant current power supply body (24) is fixedly provided at one side of the top of the heat conduction aluminum plate (32), and a boost converter (25) is fixedly provided at the other side of the top of the heat conduction aluminum plate (32).

Images