Bipolar high-power LED power supply

Abstract

The utility model belongs to the technical field of LED (light-emitting diode) power supplies, and discloses a bipolar high-power LED power supply, which comprises a shell, the connectors are symmetrically arranged at the two ends of the shell, a circuit board is installed in the shell, and a transformer, a rectifier and a controller are sequentially arranged at the top of the circuit board from left to right; the two ventilation grooves are symmetrically formed in the two sides of the shell, fixing frames are arranged at the opening ends of the ventilation grooves, filter screens are connected into the fixing frames, and fans are installed in the two ventilation grooves; according to the utility model, through cooperation of the support plate, the support rod, the guide rod, the spring and the slide block, when the device falls down accidentally, the support plate can drive the circuit board to perform buffer motion, so that vibration impact on the circuit board is greatly reduced; therefore, module elements on the device are effectively prevented from being damaged by vibration, and the safety coefficient of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of LED power supplies, and in particular relates to a dual-polarity high-power LED power supply. Background Art

[0002] LED power supply is a device that converts AC power into DC power through a transformer and a rectifier. Therefore, LED power supply can be used as a rectifier power supply, also called a driving power supply. It is widely used in street lights, tunnel lights, LED floor tiles, LED point light sources, LED grille lights and curtain wall lights.

[0003] In the Chinese patent with patent number CN201720456506.2, a bipolar high-power LED power supply is disclosed. The device sets a feedback network so that the feedback network can monitor the output voltage of the rectifier box in real time and transmit it to the controller, so as to adjust the power through the controller to achieve energy saving effect. However, the existing device still has many defects in practical application. For example, the circuit board in the shell is not effectively protected, so when it is accidentally collided and dropped, it is very easy to cause vibration damage to the internal module components, which greatly affects the safety of the device. It is also inconvenient to disassemble the ventilation and heat dissipation filter. After a long time, a large amount of dust and impurities are likely to accumulate, causing the holes to be blocked, which greatly affects the heat dissipation effect. Utility Model Content

[0004] The purpose of the utility model is to provide a dual-polarity high-power LED power supply to solve the problems in the above background technology that the circuit board in the shell is not effectively protected and the filter is inconvenient to disassemble.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dual-polar high-power LED power supply, comprising: a shell; joints symmetrically arranged at both ends of the shell, and a circuit board is installed inside the shell, and a transformer, a rectifier and a controller are arranged on the top of the circuit board from left to right in sequence; two ventilation slots symmetrically opened on both sides of the shell, and a fixing frame is arranged at the open end of the ventilation slot, a filter is connected to the inside of the fixing frame, and fans are installed inside two of the ventilation slots; a guide rod fixed to the bottom end of the shell, and sliders are symmetrically sleeved at both ends of the guide rod, the top ends of the two sliders are hinged with support rods, and a support plate is hinged between the top ends of the two support rods; a spring is installed in the middle of the outer wall of the guide rod, and the two ends of the spring are respectively fixedly connected to the two sliders, and the support plate is connected to the circuit board.

[0006] Preferably, the dual-polar high-power LED power supply further comprises: a card slot opened on the outer wall of the shell and facing the ventilation slot; the card slot matches the fixing frame, and the side walls of the shell are symmetrically provided with baffles on both sides of the card slot through the rotating axis, one end of the baffle is screwed with a fixing knob through a thread, and positioning holes matching the fixing knob are symmetrically opened on both sides of the baffle.

[0007] Preferably, it further comprises a sealing pad fixed to the inner wall of the slot, and the outer wall of the sealing pad is provided with anti-slip convex patterns.

[0008] Preferably, it also includes mounting seats symmetrically arranged on both sides of the shell end, and the side walls of the mounting seats are provided with mounting holes.

[0009] Preferably, it further comprises a plurality of through holes opened on the side wall of the support plate, and the intervals between two adjacent through holes are equal.

[0010] Preferably, it also includes a slide groove opened on the bottom side of the shell, and the sliding block is slidably connected to the slide groove.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] In the utility model, through the cooperation of the support plate, the support rod, the guide rod, the spring and the slider, when the device falls accidentally, the support plate can drive the circuit board to do buffering movement, thereby greatly reducing the vibration impact on the circuit board, and then effectively preventing the module components thereon from being damaged by vibration, thereby improving the safety factor of the device;

[0013] In addition, through the coordination of structures such as the card slot, baffle, fixing knob and position hole, the fixing frame can be firmly fixed in the card slot and can also be quickly removed, thereby realizing the rapid disassembly and assembly of the filter screen for replacement and maintenance. The operation is simple and convenient, which greatly improves the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the utility model when the housing is connected to the filter screen;

[0016] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0017] In the figure: 1. shell; 2. fan; 3. connector; 4. transformer; 5. guide rod; 6. rectifier; 7. support plate; 8. spring; 9. slider; 10. support rod; 11. controller; 12. ventilation slot; 13. circuit board; 14. filter; 15. baffle; 16. slot; 17. fixing frame; 18. fixing knob; 19. positioning hole. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Reference Figure 1 A dual-polar high-power LED power supply comprises: a housing 1; joints 3 symmetrically arranged at both ends of the housing 1, and a circuit board 13 is installed inside the housing 1, and a transformer 4, a rectifier 6 and a controller 11 are arranged on the top of the circuit board 13 from left to right in sequence; two ventilation slots 12 symmetrically opened on both sides of the housing 1, and a fixing frame 17 is arranged at the open end of the ventilation slot 12, a filter screen 14 is connected to the inside of the fixing frame 17, and fans 2 are installed inside two of the ventilation slots 12; a guide rod 5 fixed to the bottom end of the housing 1, and sliders 9 are symmetrically sleeved at both ends of the guide rod 5, and the tops of the two sliders 9 are hinged with support rods 10, and a support plate 7 is hinged between the tops of the two support rods 10; a spring 8 is installed in the middle of the outer wall of the guide rod 5, and the two ends of the spring 8 are respectively fixedly connected to the two sliders 9, and the support plate 7 is connected to the circuit board 13.

[0020] Through the above technical solution:

[0021] Specifically, when in use, the two connectors 3 are the input end and the output end respectively, and the voltage can be input through the input connector 3, and then the voltage passes through the transformer 4 and the rectifier 6, and after transformation and rectification, it can be output through the input connector 3, so as to power the LED lamp;

[0022] The fan 2 can blow air to the module components, and the hot air can be discharged outward through the opposite ventilation slots 12. The filter 14 can prevent dust from entering, thereby greatly accelerating the heat dissipation effect in the housing 1, effectively avoiding excessive temperature of the device, and greatly improving safety:

[0023] In addition, when the device falls accidentally, the circuit board 13 can drive the support plate 7 to move, so that the support plate 7 drives the support rod 10 to move, and then the support rod 10 drives the slider 9 to slide on the guide rod 5, so that the two sliders 9 act on the spring 8, thereby causing the spring 8 to undergo elastic deformation. Under the buffering effect of this structure, the vibration impact on the circuit board 13 can be greatly reduced, thereby effectively preventing the module components thereon from being damaged by vibration, thereby greatly improving the safety factor of the device.

[0024] Furthermore, for the shell 1 set up as above, mounting seats can be additionally provided on both sides of its ends, and mounting holes are opened on the side walls of the mounting seats, based on which, the device can be easily fixed through the mounting seats.

[0025] Furthermore, for the support plate 7 provided above, through holes may be additionally provided on its side wall, and the intervals between two adjacent through holes are equal. Based on this, the heat dissipation effect of the circuit board 13 may be improved by providing the through holes.

[0026] Furthermore, for the housing 1 provided above, a slide groove may be additionally provided on the inner bottom side thereof, and the slider 9 is slidably connected to the slide groove. Based on this, the slide groove may make the slider 9 more stable when moving.

[0027] Reference Figure 2 and Figure 3 In the present invention, a further embodiment is provided, the dual-polar high-power LED power supply further includes: a card slot 16 opened on the outer wall of the shell 1 and facing the ventilation slot 12; the card slot 16 matches the fixing frame 17, and the side walls of the shell 1 are symmetrically provided with baffles 15 on both sides of the card slot 16 through the rotating axis, one end of the baffle 15 is screwed with a fixing knob 18 through a thread, and positioning holes 19 matching the fixing knob 18 are symmetrically opened on both sides of the baffle 15.

[0028] Through the above technical solution:

[0029] Specifically, when in use, the fixing frame 17 is embedded in the card slot 16, and then the baffle 15 is rotated so that the baffle 15 drives the fixing knob 18 to move onto the fixing frame 17, and then the fixing knob 18 is rotated so that the end of the fixing knob 18 is inserted into the positioning hole 19, so that the fixing frame 17 can be firmly fixed in the card slot 16, and the baffle 15 is removed to quickly take out the fixing frame 17, thereby realizing the rapid disassembly and assembly of the filter screen 14 for replacement and maintenance, which is simple and convenient to operate, and greatly improves the practicality of the device.

[0030] Furthermore, for the above-mentioned slot 16, a sealing pad can be additionally provided on the inner wall thereof, and the outer wall of the sealing pad is provided with anti-slip convex patterns, based on which the sealing pad has a reinforcing effect.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dual-polarity high power LED power supply, characterized in that: include: Housing (1); Joints (3) are symmetrically arranged at both ends of the housing (1), and a circuit board (13) is installed inside the housing (1), and a transformer (4), a rectifier (6) and a controller (11) are arranged in sequence on the top of the circuit board (13) from left to right; Two ventilation slots (12) are symmetrically arranged on both sides of the housing (1), and a fixing frame (17) is provided at the open end of the ventilation slot (12), a filter screen (14) is connected inside the fixing frame (17), and fans (2) are installed inside the two ventilation slots (12); A guide rod (5) is fixed to the bottom end of the housing (1), and sliders (9) are symmetrically sleeved at both ends of the guide rod (5), the top ends of the two sliders (9) are hingedly connected to support rods (10), and a support plate (7) is hingedly connected between the top ends of the two support rods (10); A spring (8) is installed in the middle of the outer wall of the guide rod (5), and the two ends of the spring (8) are respectively fixedly connected to two sliders (9), and the support plate (7) is connected to the circuit board (13).

2. A dual-polarity high power LED power supply according to claim 1, characterized in that: The dual-polar high-power LED power supply also includes: A slot (16) formed on the outer wall of the housing (1) and facing the ventilation slot (12); The card slot (16) matches the fixed frame (17), and the side walls of the housing (1) are symmetrically provided with baffles (15) on both sides of the card slot (16) through a rotating shaft, one end of the baffle (15) is screwed with a fixed knob (18) through a thread, and positioning holes (19) matching the fixed knob (18) are symmetrically opened on both sides of the baffle (15).

3. A dual-polarity high power LED power supply according to claim 2, characterized in that: It also includes a sealing pad fixed to the inner wall of the card slot (16), and the outer wall of the sealing pad is provided with anti-slip convex patterns.

4. A dual-polarity high power LED power supply according to claim 3, characterized in that: It also comprises mounting seats symmetrically arranged on both sides of the end of the shell (1), and the side walls of the mounting seats are provided with mounting holes.

5. A dual-polarity high power LED power supply according to claim 4, characterized in that: It also includes a plurality of through holes formed on the side wall of the support plate (7), and the intervals between two adjacent through holes are equal.

6. A dual-polar high power LED power supply according to claim 5, characterized in that: It also includes a slide groove opened on the bottom side of the shell (1), and the sliding block (9) is slidably connected to the slide groove.

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