LED drive test system

Abstract

The invention relates to the technical field of LED drive test, in particular to an LED drive test system, which solves the shortcomings in the prior art and comprises a box body, wherein the box body comprises a fixed housing and a rotating cover movably hinged on the fixed housing, a control panel is arranged on one side of the box body, a locking rod is slidably arranged inside the rotating cover, a pressing block is fixed on the top of the locking rod by screws, a connecting rod is welded on one side of the rotating cover, a hook portion is fixedly arranged on the end of the connecting rod, a rotating shaft is rotatably arranged on the fixed housing, the box body for testing is arranged as a split type, the equipment can be conveniently opened when maintenance is required, so that the internal electrical components can be quickly maintained, the operation is convenient, and the arrangement of structures such as a sliding rod, an extrusion plate and a sealing gasket is adopted. After the rotating cover is closed, the extrusion plate at the end can press the sealing gasket tightly, so that the connection of the rotating cover is sealed.

Description

Technical Field

[0001] The invention relates to the technical field of LED drive testing, and in particular to an LED drive testing system. Background Art

[0002] LED driver power supply is a voltage converter that converts power supply into a specific voltage and current to drive LED to emit light. Usually, the input of LED driver power supply includes high-voltage power frequency AC (i.e. mains), low-voltage DC, high-voltage DC, low-voltage high-frequency AC (such as the output of electronic transformer), etc. The output of LED driver power supply is mostly a constant current source that can change the voltage as the forward voltage drop value of the LED changes.

[0003] The equipment used for LED driver testing in the prior art has the following defects: first, the equipment is all set up in an integrated manner, which is not convenient for maintenance of the equipment; second, due to the large number of internal electrical components, a large amount of heat is easily accumulated, the heat dissipation performance is poor, and the service life of the equipment is short; third, the test system has a single function and cannot meet the power supply requirements of all products. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an LED drive test system.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The LED driving test system comprises a box body, wherein the box body comprises a fixed housing and a rotating cover movably hinged on the fixed housing, a control panel is arranged on one side of the box body, a locking rod is slidably arranged inside the rotating cover, a pressing block is fixed on the top of the locking rod by screws, a connecting rod is welded on one side of the rotating cover, a curved hook is fixedly arranged on the end of the connecting rod, a rotating shaft is rotatably arranged on the fixed housing, and a locking hook, a fixing block and a side plate are respectively fixed on the outer side of the rotating shaft by screws;

[0007] A third spring is fixedly connected to one side of the fixed block, and the other end of the third spring is fixedly connected to the bottom wall of the fixed housing through a buckle. A rectangular groove matching the locking rod is provided inside the side plate.

[0008] Preferably, a heat dissipation component is fixedly arranged on the top of the rotating cover, and the heat dissipation component includes a heat dissipation seat, and the heat dissipation seat and the rotating cover are an integrally formed structure;

[0009] A heat dissipation air duct is provided inside the heat dissipation seat, and a fixed seat, a rotating seat, a fan and a dustproof net are arranged in sequence inside the heat dissipation air duct.

[0010] Preferably, the fixing seat, the fan and the dust screen are all fixed inside the heat dissipation duct by screws, and the rotating seat is rotatably mounted on the top of the fixing seat by a bearing.

[0011] Preferably, the heat sink is further provided with an arc-shaped groove connected with the heat dissipation air duct, and a lever is fixed to one side of the rotating seat by screws, and the lever passes through the interior of the arc-shaped groove.

[0012] Preferably, the control panel is respectively provided with a display screen, an up-adjustment button, a down-adjustment button, a start button, a stop button and an output button.

[0013] Preferably, a slide groove is provided at the end of the rotating cover, a slide rod is slidably connected inside the slide groove, an extrusion plate is welded at the end of the slide rod, a sealing gasket is bonded to the outside of the extrusion plate by an adhesive, the other end of the slide rod is fixedly connected to a first spring by a snap, and the other end of the first spring is fixedly connected to the side wall of the slide groove.

[0014] Preferably, the rotating cover is provided with interconnected limit slots and sliding holes in sequence, the locking rod is slidably connected to the sliding hole, a second spring is sleeved on the outside of the locking rod, and both ends of the second spring are fixedly connected to the bottom wall of the limit slot and the pressure block respectively.

[0015] Preferably, it also includes an SPI communication level conversion circuit, an MCU1 main control circuit and a communication circuit connected in sequence;

[0016] The IIC communication level conversion circuit, MCU main control circuit and DCDC conversion circuit are connected in sequence;

[0017] A 5V DCDC conversion circuit, a 3.3V DCDC conversion circuit, a synchronization signal level conversion circuit, an SPI signal level conversion circuit, and a core voltage control circuit connected in sequence;

[0018] The IIC secondary level conversion circuit and the DCDC timing control circuit are connected in sequence.

[0019] The beneficial effects of the present invention are:

[0020] 1. In the present invention, the box for testing is set to be split by fixing the casing, rotating cover, locking rod, connecting rod and rotating shaft. When maintenance is needed, the equipment can be easily opened, so that the internal electrical components can be quickly maintained, and the operation is convenient. The sliding rod, extrusion plate and sealing gasket are set. After the rotating cover is closed, the extrusion plate at the end can press the sealing gasket, so that the connection of the rotating cover is sealed.

[0021] 2. In the present invention, through the setting of the heat dissipation component, when the temperature of the equipment is too high, the staff can push the lever on one side to drive the rotating seat to rotate, and cooperate with the fixed seat to open the heat dissipation duct, so that the equipment can be cooled quickly, the heat dissipation performance is good, and the service life of the equipment is extended.

[0022] 3. The present invention utilizes MCU equipped with SPI and IIC communication protocols, and is externally matched with corresponding level conversion and isolation communication circuits to complete the communication command docking with the product. The device integrates control board, power board, system power supply, display, and communication in one, which effectively saves space cost. At the same time, the high integration also improves the stability of the equipment. The power source is equipped with multi-channel DCDC modules with controllable timing, which perfectly realizes the power supply requirements required by the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the LED drive test system proposed by the present invention;

[0024] Figure 2 A side sectional view of the box body provided by the present invention;

[0025] Figure 3 A front cross-sectional view of the heat dissipation assembly provided by the present invention;

[0026] Figure 4 for Figure 2 Enlarged view of the center labeled A;

[0027] Figure 5 for Figure 2 Enlarged view of the mark B;

[0028] Figure 6 This is a schematic diagram of the fitting of the fixed seat and the rotating seat proposed by the present invention;

[0029] Figure 7 A schematic diagram of the separation of the fixed seat and the rotating seat proposed by the present invention;

[0030] Figure 8 This is a schematic diagram of the SPI communication level conversion circuit proposed by the present invention;

[0031] Fig. 9 This is a schematic diagram of the MCU1 main control circuit proposed by the present invention;

[0032] Fig.10 A schematic diagram of a communication circuit proposed by the present invention;

[0033] Fig.11 This is a schematic diagram of the IIC communication level conversion circuit proposed by the present invention;

[0034] Fig.12 This is a schematic diagram of the MCU main control circuit proposed by the present invention;

[0035] Fig.13 This is a schematic diagram of the DCDC conversion circuit proposed by the present invention;

[0036] Fig.14 This is a schematic diagram of a 5V DCDC conversion circuit proposed by the present invention;

[0037] Fig.15 This is a schematic diagram of the 3.3V DCDC conversion circuit proposed by the present invention;

[0038] Fig.16 A schematic diagram of a synchronous signal level conversion circuit proposed by the present invention;

[0039] Fig.17 This is a schematic diagram of the SPI signal level conversion circuit proposed by the present invention;

[0040] Fig.18 This is a schematic diagram of the core voltage control circuit proposed by the present invention;

[0041] Fig.19 This is a schematic diagram of the IIC secondary level conversion circuit proposed by the present invention;

[0042] Fig. 20 This is a schematic diagram of the DCDC timing control circuit proposed by the present invention.

[0043] In the figure: 1 box body, 11 fixed housing, 12 rotating cover, 121 slide groove, 122 slide rod, 123 first spring, 124 extrusion plate, 125 sealing gasket, 2 control panel, 21 display screen, 22 up button, 23 down button, 24 start button, 25 stop button, 26 output button, 3 heat dissipation component, 31 heat dissipation seat, 32 fixed seat, 33 rotating seat, 34 fan, 35 dust net, 36 lever, 4 pressure block, 5 locking rod, 6 second spring, 7 connecting rod, 71 hook portion, 8 shaft, 81 locking hook, 82 fixed block, 83 third spring, 84 side plate, 85 rectangular groove. DETAILED DESCRIPTION

[0044] 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 the embodiments.

[0045] Reference Figure 1-20The LED driving test system includes a box body 1, which includes a fixed housing 11 and a rotating cover 12 movably hinged on the fixed housing 11. A control panel 2 is arranged on one side of the box body 1. A locking rod 5 is slidably arranged inside the rotating cover 12. A pressing block 4 is fixed to the top of the locking rod 5 by screws. A connecting rod 7 is welded to one side of the rotating cover 12. A hook portion 71 is fixedly arranged at the end of the connecting rod 7. A rotating shaft 8 is rotatably arranged on the fixed housing 11. A locking hook 81, a fixing block 82 and a side plate 84 are respectively fixed to the outer side of the rotating shaft 8 by screws; a third spring 83 is fixedly connected to one side of the fixing block 82, and the other end of the third spring 83 is fixedly connected to the bottom wall of the fixed housing 11 by a buckle. A rectangular groove 85 matching the locking rod 5 is opened inside the side plate 84.

[0046] Among them, by setting the structures such as the fixed housing 11, the rotating cover 12, the locking rod 5, the connecting rod 7 and the rotating shaft 8, the box 1 for testing is set to be split, and the equipment can be easily opened when maintenance is needed, so that the internal electrical components can be quickly maintained, and the operation is convenient. The structures such as the sliding rod 122, the extrusion plate 124 and the sealing gasket 125 are set. After the rotating cover 12 is closed, the extrusion plate 124 at the end can press the sealing gasket 125, so that the connection of the rotating cover 12 is sealed. Through the setting of the heat dissipation component 3, when the temperature of the equipment is too high, the personnel can turn the dial on one side to The rod 36 drives the rotating seat 33 to rotate, and cooperates with the fixed seat 32 to open the heat dissipation duct, so that the equipment can be cooled quickly, the heat dissipation performance is good, and the service life of the equipment is extended. The MCU is equipped with SPI and IIC communication protocols, and the corresponding level conversion and isolation communication circuits are matched externally to complete the communication command docking with the product. The equipment integrates control board, power board, system power supply, display, and communication in one, which effectively saves space cost. At the same time, the high integration also improves the stability of the equipment. The power source is equipped with multi-channel DCDC modules with controllable timing, which perfectly realizes the power supply requirements required by the product.

[0047] A heat dissipation assembly 3 is fixedly disposed on the top of the rotating cover 12. The heat dissipation assembly 3 includes a heat dissipation seat 31. The heat dissipation seat 31 and the rotating cover 12 are an integrally formed structure.

[0048] A heat dissipation duct is provided inside the heat dissipation seat 31 , and a fixed seat 32 , a rotating seat 33 , a fan 34 and a dustproof net 35 are sequentially arranged inside the heat dissipation duct.

[0049] The fixed seat 32 , the fan 34 and the dustproof net 35 are all fixed inside the heat dissipation air duct by screws, and the rotating seat 33 is rotatably installed on the top of the fixed seat 32 by a bearing.

[0050] The heat sink 31 is also provided with an arc groove connected to the heat dissipation air duct. A lever 36 is fixed to one side of the rotating seat 33 by screws, and the lever 36 passes through the interior of the arc groove.

[0051] The control panel 2 is provided with a display screen 21 , an upward adjustment button 22 , a downward adjustment button 23 , a start button 24 , a stop button 25 and an output button 26 .

[0052] A slide groove 121 is provided at the end of the rotating cover 12, and a slide rod 122 is slidably connected inside the slide groove 121. An extrusion plate 124 is welded to the end of the slide rod 122, and a sealing gasket 125 is bonded to the outside of the extrusion plate 124 by an adhesive. The other end of the slide rod 122 is fixedly connected to a first spring 123 by a snap, and the other end of the first spring 123 is fixedly connected to the side wall of the slide groove 121.

[0053] The rotating cover 12 is provided with interconnected limit slots and sliding holes in sequence, the locking rod 5 is slidably connected to the sliding hole, the outer portion of the locking rod 5 is sleeved with a second spring 6, and the two ends of the second spring 6 are fixedly connected to the bottom wall of the limit slot and the pressing block 4 respectively.

[0054] It also includes an SPI communication level conversion circuit, an MCU1 main control circuit and a communication circuit connected in sequence;

[0055] The IIC communication level conversion circuit, MCU main control circuit and DCDC conversion circuit are connected in sequence;

[0056] A 5V DCDC conversion circuit, a 3.3V DCDC conversion circuit, a synchronization signal level conversion circuit, an SPI signal level conversion circuit, and a core voltage control circuit connected in sequence;

[0057] The IIC secondary level conversion circuit and the DCDC timing control circuit are connected in sequence.

[0058] In this embodiment, during the test, the device power is turned on, and after connecting to the product, the brightness value of each gear is set through the function buttons. After pressing the start button 24, the product starts to light up, and the brightness is the gear currently displayed. Pressing the up button 22 and the down button 23 can better adjust the brightness gear. Pressing the start button 24 again turns the product off;

[0059] Furthermore, when the equipment needs to be repaired, the personnel can pull the pressure block 4, and the pressure block 4 drives the locking rod 5 to slide upward, and the locking rod 5 is separated from the rectangular groove 85 on the side plate 84, and then the rotating shaft 8 can be rotated. After the rotating shaft 8 drives the locking hook 81 to rotate, the force above the curved hook portion 71 at the end of the connecting rod 7 disappears, and the rotating cover 12 can be operated to open, thereby exposing each module to the outside, so that the internal electrical components can be repaired. When fixing the rotating cover 12, the rotating cover 12 can be operated to close first, and after the rotating shaft 8 is released, the rotating shaft 8 is rotated and reset under the push of the third spring 83. After the pressure block 4 is released, the locking rod 5 slides through the rectangular groove 85, thereby fixing the position of the rotating shaft 8;

[0060] In addition, when the temperature of the box body 1 is too high, a person can push the lever 36 on one side, and the lever 36 moves along the arc groove to drive the internal rotating seat 33 to rotate. After the rotating seat 33 rotates 45 degrees, the gap on the fixed seat 32 is opened, and the fan 34 is started to quickly absorb the internal heat to achieve rapid cooling. After the cooling is completed, the lever 36 can be pushed to reset, and the rotating seat 33 and the fixed seat 32 are matched to block the heat dissipation duct, thereby protecting the internal electrical components;

[0061] In addition, when the rotating cover 12 is closed, the sliding rod 122 and the pressing plate 124 at the end thereof, pushed by the first spring 123 , press the sealing gasket 125 tightly, so that the connection is sealed.

[0062] 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 according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An LED driving test system, comprising a box (1), characterized in that: The box body (1) comprises a fixed housing (11) and a rotating cover (12) movably hinged on the fixed housing (11); a control panel (2) is arranged on one side of the box body (1); a locking rod (5) is slidably arranged inside the rotating cover (12); a pressing block (4) is fixed to the top of the locking rod (5) by screws; a connecting rod (7) is welded to one side of the rotating cover (12); a bent hook (71) is fixedly arranged at the end of the connecting rod (7); a rotating shaft (8) is rotatably arranged on the fixed housing (11); a locking hook (81), a fixing block (82) and a side plate (84) are respectively fixed to the outer side of the rotating shaft (8) by screws; A third spring (83) is fixedly connected to one side of the fixed block (82), and the other end of the third spring (83) is fixedly connected to the bottom wall of the fixed housing (11) through a buckle. A rectangular groove (85) matching the locking rod (5) is provided inside the side plate (84).

2. The LED drive test system according to claim 1, characterized in that: A heat dissipation component (3) is fixedly arranged on the top of the rotating cover (12), wherein the heat dissipation component (3) comprises a heat dissipation seat (31), and the heat dissipation seat (31) and the rotating cover (12) are an integrally formed structure; A heat dissipation air duct is provided inside the heat dissipation seat (31), and a fixed seat (32), a rotating seat (33), a fan (34) and a dustproof net (35) are sequentially arranged inside the heat dissipation air duct.

3. The LED drive test system according to claim 2, characterized in that: The fixed seat (32), the fan (34) and the dust screen (35) are all fixed inside the heat dissipation air duct by screws, and the rotating seat (33) is rotatably mounted on the top of the fixed seat (32) by a bearing.

4. The LED drive test system according to claim 2, characterized in that: The heat dissipation seat (31) is also provided with an arc-shaped groove connected to the heat dissipation air duct. A lever (36) is fixed to one side of the rotating seat (33) by means of screws, and the lever (36) passes through the interior of the arc-shaped groove.

5. The LED drive test system according to claim 1, characterized in that: The control panel (2) is respectively provided with a display screen (21), an upward adjustment button (22), a downward adjustment button (23), a start button (24), a stop button (25) and an output button (26).

6. The LED drive test system according to claim 1, characterized in that: The end of the rotating cover (12) is provided with a slide groove (121), the interior of the slide groove (121) is slidably connected with a slide rod (122), the end of the slide rod (122) is welded with an extrusion plate (124), the outside of the extrusion plate (124) is bonded with a sealing gasket (125) by an adhesive, the other end of the slide rod (122) is fixedly connected with a first spring (123) by a buckle, and the other end of the first spring (123) is fixedly connected to the side wall of the slide groove (121).

7. The LED driving test system according to claim 1, characterized in that: The rotating cover (12) is provided with interconnected limiting slots and sliding holes in sequence, the locking rod (5) is slidably connected to the sliding hole, a second spring (6) is sleeved on the outside of the locking rod (5), and two ends of the second spring (6) are respectively fixedly connected to the bottom wall of the limiting slot and the pressing block (4).

8. The LED driving test system according to claim 1, characterized in that: It also includes an SPI communication level conversion circuit, an MCU1 main control circuit and a communication circuit connected in sequence; The IIC communication level conversion circuit, MCU main control circuit and DCDC conversion circuit are connected in sequence; The 5V DCDC conversion circuit, 3.3V DCDC conversion circuit, synchronization signal level conversion circuit, SPI signal level conversion circuit and core voltage control circuit are connected in sequence; the IIC secondary level conversion circuit and DCDC timing control circuit are connected in sequence.

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