LED driving power supply anti-aging capability detection device

Abstract

The invention relates to the technical field of power supply detection equipment, in particular to LED driving power supply anti-aging capability detection equipment which comprises a detection frame, the detection frame comprises a plurality of partition plates, rectangular holes are formed in the middles of the partition plates in a penetrating mode, and air conveying pipes capable of conveying warm air to the rectangular holes are arranged among one ends of the rectangular holes. A plurality of temperature control covers are fixed to the top of the partition plate at equal intervals, and each temperature control cover comprises a baffle. According to the invention, the driving power supply is isolated and stored in a certain space through the temperature control cover, and warm air is conveyed into the temperature control cover through the air guide pipe, so that the driving power supply can work in a high-temperature environment; the contact piece on the inner side of the cover plate is matched with the supporting assembly so that cables at the two ends of the driving power supply can be automatically and electrically connected to the cover plate, the cover plate is connected with an electrical parameter tester through a detection line, and the performance of the driving power supply in severe environments such as high temperature and high load can be conveniently detected.

Description

Technical Field

[0001] The invention relates to the technical field of power supply detection equipment, in particular to an anti-aging ability detection equipment for an LED driving power supply. Background Art

[0002] LED driver power supply is a power supply that converts power supply into a specific voltage and current to drive LED to emit light. In order to evaluate the performance stability and reliability of the power supply under harsh environments such as long-term high temperature and high load, manufacturers generally extract sample power supplies from the product and place them on the anti-aging ability test rack for anti-aging ability test. There are multiple partitions on the test rack, and multiple LED driver power supplies are placed on each partition. By connecting the test wires at both ends of the power supply to the electrical parameter tester on the test rack, the electrical parameter tester can monitor the electrical performance of the power supply for a long time to see if it is decaying and aging;

[0003] Traditional testing frames cannot impose a high-temperature anti-aging testing environment on the power supply. When testing the impact of environmental factors on the aging of the power supply's electrical performance, the power supply needs to be placed in a temperature control box for secondary testing. The lack of functional anti-aging testing frames is not conducive to improving the efficiency of LED driver power supply anti-aging testing. Due to the influence of high temperature, the plastic casing of the driver power supply may be deformed due to production process defects or material thermal expansion. This deformation will cause the gap between the casing and internal components to decrease, thereby affecting the power supply's heat dissipation and electrical performance. Therefore, after the LED driver power supply works under high temperature and high load conditions, the user also needs to detect whether the power supply casing is deformed and aged. Manual inspection of whether the casing is deformed and aged is not only time-consuming but also inefficient. Summary of the invention

[0004] The purpose of the present invention is to provide an LED driving power supply anti-aging ability detection device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An LED driving power supply anti-aging ability testing device, comprising:

[0007] A detection frame, the detection frame comprising a plurality of partitions, a rectangular hole is formed through the middle of the partition, and an air delivery pipe capable of delivering warm air to the rectangular holes is arranged between one ends of the plurality of rectangular holes;

[0008] A plurality of temperature control covers are fixed on the top of the partition at corresponding positions, the temperature control covers include a baffle, a cover plate is detachably fixed to the outer side of the baffle, and an air guide pipe connected to the rectangular hole is fixed to the inner side of the cover plate;

[0009] A plurality of support components are arranged inside the temperature control cover at corresponding positions, respectively, for supporting and fixing the driving power supply, and electrically connecting the cables at both ends of the driving power supply to the cover plate;

[0010] A plurality of deformation temperature measurement modules are arranged inside the temperature control cover at corresponding positions, respectively. The plurality of deformation temperature measurement modules include a guide rail fixed to a baffle, a moving block slides inside the guide rail, an infrared thermal imager is embedded and fixed inside the moving block, a disc rotates outside the moving block, a plurality of telescopic parts are fixed outside the disc, a pressure sensor is installed at one end of the telescopic part, and a rack meshing with the disc is fixed on the top of the guide rail;

[0011] The traction mechanism is used to drive the multiple moving blocks to move inside the guide rail.

[0012] Further, the detection frame further comprises:

[0013] A measurement and control board is fixed on the rear side of the plurality of partitions, and an electrical parameter tester for detecting the electrical performance of the driving power supply is installed and fixed on the rear side of the measurement and control board;

[0014] There are two columns, which are fixed at both ends of the measurement and control board respectively.

[0015] Further, the support assembly comprises:

[0016] There are two support plates, both of which are fixedly connected to the partition plate, and a special-shaped block is fixed on the top of the support plate;

[0017] The support plate is fixed on the top of the two support plates.

[0018] Furthermore, contact pieces electrically contacting the cables at the two ends of the driving power supply are fixedly mounted on the inner sides of both ends of the cover plate, and two detection lines are electrically connected to the rear side of the cover plate.

[0019] The invention further comprises: a gear ring meshing with a rack for transmission is sleeved and fixed on the outer side of the disc, and a second round hole is opened in the middle of the disc.

[0020] Furthermore, a plurality of circular holes 1 for convenient insertion of the air guide tube are provided at equal intervals on the top of the rectangular hole, a return spring 2 is fixed inside the rectangular hole and below the circular hole 1, and a sealing cylinder is fixed to the bottom end of the return spring 2.

[0021] Further, the traction mechanism comprises:

[0022] There are two shafts, both of which are rotatably connected to the detection frame. A plurality of winding wheels are sleeved and fixed on the outer side of the shafts. A traction rope is wound and fixed between two of the winding wheels. The traction rope is fixed to a plurality of moving blocks at corresponding positions.

[0023] There are two motors, each of which is used to drive the corresponding shaft to rotate.

[0024] Further, the deformation temperature measurement module further includes:

[0025] An annular block is fixed on one side of the moving block, and one side of the disc is provided with an annular groove rotatably connected to the annular block;

[0026] The bent pipe with sealed ends is fixed on the outer side of the disc, and both ends of the bent pipe are connected and fixed with connecting pipes connected with the annular groove.

[0027] Furthermore, the telescopic member includes a sleeve connected and fixed to the bent pipe, a sliding rod is slidably connected inside the sleeve, a return spring is fixed between the sliding rod and the sleeve, and the sliding rod is fixedly connected to the pressure sensor.

[0028] Furthermore, connecting rods are fixed between the two ends of the moving block and the annular block, a plurality of collars are fixed at equal intervals on the top surface of the partition, and the collars are connected to the annular groove through a hose.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. A temperature control cover is arranged on the top surface of the partition, and a support assembly capable of supporting and fixing the driving power supply is arranged inside the temperature control cover. When the cover is closed, the contact pieces at both ends of the inner side of the cover are automatically electrically connected to the cables on the driving power supply, and the detection line on one side of the cover is connected to the electrical parameter tester on the detection frame, so as to achieve fast wiring and use the detection equipment to detect various electrical performance parameters of the driving power supply during long-term operation.

[0031] 2. By fixing an air duct on the inner side of the cover plate, after the cover plate is closed onto the baffle to form a temperature control cover, the air duct is simultaneously moved down and plugged into the rectangular hole inside the partition. The external heating equipment delivers warm air to the air duct, so that the warm air is delivered to the temperature control cover through the air duct. This can increase the warm air temperature, so that the driving power supply can be powered on and work inside the temperature control cover in a high-temperature environment, which is convenient for detecting changes in the electrical performance of the driving power supply working in a high-temperature environment. The safety valve on the top of the temperature control cover can be closed to continuously inject warm air into the temperature control cover, so that the inside of the temperature control cover is in a high-pressure state, which is convenient for detecting changes in the electrical performance of the driving power supply working under high pressure.

[0032] 3. A guide rail is fixed on the inner side of the baffle, a moving block slides inside the guide rail, an infrared thermal imager is embedded and fixed in the middle of the moving block, an axis on the traction mechanism drives the winding wheel to rotate to reel in the traction rope, and another axis on the traction mechanism drives the winding wheel to rotate to release the traction rope, so that the traction rope drives the moving block to move inside the guide rail, and the moving block drives the infrared thermal imager to move on one side of the driving power supply, so as to facilitate the detection of the temperature around the transformer, capacitor, radiator and other components inside the shell of the driving power supply after long-term high-load work, and to facilitate the detection of whether the heat dissipation performance of the driving power supply is degraded, as well as the temperature difference changes of different component positions on the circuit board.

[0033] 4. Warm air is delivered to the sleeve through the air duct, and the warm air is delivered to the inside of the annular groove of the disc through the hose, and then delivered to the inside of the sleeve of multiple telescopic parts through the connecting pipe. The increase in air pressure inside the sleeve will cause the slide bar to slide out from the inside of the sleeve, and the pressure sensor at the end of the slide bar will hit the outside of the shell of the driving power supply. At this time, the reading of the pressure sensor is recorded as a, and the moving block is pulled along the guide rail by the traction rope again. The moving block rotates with the disc in meshing on the rack, so that the disc moves with multiple pressure sensors at different positions outside the shell of the driving power supply. The reading of the pressure sensor during the movement is recorded as b. By comparing the numerical difference between a and b, it can be reflected whether the outside of the driving power supply is aged and deformed. The larger the numerical difference between a and b, the more serious the deformation of the driving power supply shell. Automated detection of the deformation of the driving power supply shell is conducive to improving the efficiency of deformation and aging detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 It is a schematic diagram of the structure of the traction mechanism in the present invention;

[0036] Figure 3 It is a schematic diagram of the structure of the column, partition and gas transmission pipe in the present invention;

[0037] Figure 4 It is a schematic diagram of the structure of the partition and the temperature control cover in the present invention;

[0038] Figure 5 The internal structure of the temperature control cover in the present invention is shown in FIG. Figure 1 ;

[0039] Figure 6 The internal structure of the temperature control cover in the present invention is shown in FIG. Figure 2 ;

[0040] Figure 7 The internal structure of the temperature control cover in the present invention is shown in FIG. Figure 3 ;

[0041] Figure 8It is a structural schematic diagram of the deformation temperature measurement module in the present invention;

[0042] Fig. 9 It is a schematic diagram of the three-dimensional structure of the disc, infrared thermal imager, annular block and moving block in the present invention.

[0043] In the figure: 100, detection frame; 110, measurement and control board; 120, column; 121, L-shaped hole; 130, partition; 131, round hole 1; 132, iron sheet; 140, rectangular hole; 150, air pipe; 160, collar; 170, sealing cylinder; 200, temperature control cover; 210, baffle; 220, cover plate; 221, contact sheet; 222, safety valve; 223, detection line; 224, electromagnet; 230, air guide tube; 231, outlet hole 1; 232, outlet hole 2; 300, support assembly; 310, support plate; 3 11. Special-shaped block; 320. Support plate; 400. Deformation temperature measurement module; 410. Guide rail; 420. Moving block; 421. Infrared thermal imager; 422. Connecting rod; 423. Rotating ring; 430. Ring block; 440. Disc; 441. Ring groove; 442. Gear ring; 450. Bend pipe; 451. Connecting pipe; 460. Telescopic part; 461. Pressure sensor; 470. Rack; 500. Traction mechanism; 510. Shaft; 520. Winding wheel; 521. Traction rope; 530. Motor; 600. Drive power source body. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] For example, see Figure 1 - Fig. 9In an embodiment of the present invention, an LED driving power supply anti-aging ability detection device includes a detection frame 100, the detection frame 100 includes a plurality of partitions 130, a rectangular hole 140 is opened through the middle of the partition 130, an air delivery pipe 150 capable of delivering warm air to the rectangular hole 140 is arranged between one end of the plurality of rectangular holes 140, a plurality of temperature control covers 200 are fixed at equal intervals on the top of the partition 130, the temperature control cover 200 includes a baffle 210, a cover plate 220 is detachably fixed on the outer side of the baffle 210, an air guide pipe 230 connected to the rectangular hole 140 is fixed on the inner side of the cover plate 220, and a support assembly 300 is arranged inside the temperature control cover 200, and the support assembly 300 is used to support and fix the driving power supply, and to connect the two sides of the driving power supply The end cable is electrically connected to the cover plate 220, and a deformation temperature measurement module 400 is arranged inside the temperature control cover 200. The multiple deformation temperature measurement modules 400 include a guide rail 410 fixed to the baffle 210, a moving block 420 slides inside the guide rail 410, an infrared thermal imager 421 is embedded and fixed inside the moving block 420, a disc 440 rotates on the outer side of the moving block 420, a plurality of telescopic parts 460 are fixed on the outer side of the disc 440, a pressure sensor 461 is installed on one end of the telescopic part 460, a rack 470 meshing with the disc 440 is fixed on the top of the guide rail 410, and a traction mechanism 500 is arranged on the outer side of the multiple temperature control covers 200, and the traction mechanism 500 is used to drive the multiple moving blocks 420 to move inside the guide rail 410.

[0046] Specifically, by fixing the temperature control cover 200 on the partition 130, the temperature control cover 200 can isolate and store the driving power supply in a certain space, and the warm air is transported to the inside of the temperature control cover 200 through the air duct 230, so that the driving power supply can work in a high temperature environment, and then the cover plate 220 is closed on the baffle 210 to make the temperature control cover 200 seal and store the driving power supply. In the process, the contact piece 221 on the inner side of the cover plate 220 cooperates with the support assembly 300 to automatically electrically connect the cables at both ends of the driving power supply to the cover plate 220, and the cover plate 220 is connected to the electrical parameter tester on the measurement and control board 110 through the detection line 223, so as to facilitate the detection of the performance of the driving power supply in harsh environments such as high temperature and high load. When detecting the anti-aging condition of the driving power supply when working at high load, the traction rope 521 on the traction mechanism 500 can be used to tow the moving block 420 to move on the outside of the driving power supply, and the infrared inside the moving block 420 The thermal imager 421 can detect the temperature of different component positions inside the driving power supply, which is convenient for automatically detecting the degradation and aging of the heat dissipation performance of the driving power supply under high load operation. A disk 440 is rotated on the outside of the moving block 420, and multiple pressure sensors 461 are installed and fixed on the telescopic member 460 on the outside of the disk 440. The telescopic member 460 is extended to make the pressure sensor 461 contact the outer shell of the driving power supply. Similarly, the traction mechanism 500 is used to drive the moving block 420 to move outside the driving power supply shell, so that the multiple pressure sensors 461 can be dispersed and contacted at different positions on the outside of the shell. The deformation of the shell is judged according to whether the reading of the pressure sensor 461 changes during the movement. If the pressure reading of the pressure sensor 461 changes during the movement outside the shell, it means that the shell of the driving power supply is deformed, thereby realizing automatic detection of whether the shell of the driving power supply is aged and deformed after long-term operation.

[0047] like Figure 1 , Figure 4 and Figure 5 As shown, in this embodiment, the detection frame 100 also includes a measurement and control board 110 fixed to multiple partitions 130, and an electrical parameter tester for detecting the electrical performance of the driving power supply is installed and fixed on the rear side of the measurement and control board 110. Columns 120 are fixed at both ends of the measurement and control board 110, and the columns 120 are fixed at both ends of the partitions 130. The external electrical parameter tester is electrically connected to the cover plate 220 through the detection line 223, and the cover plate 220 is electrically connected to the cables at both ends of the driving power supply through the contact piece 221, so as to realize the electrical connection between the driving power supply and the electrical parameter tester, and the electrical parameter tester timely reads the various electrical properties of the driving power supply during the anti-aging detection process.

[0048] In this embodiment, the driving power supply can be connected to a cyclic load through the detection line 223 for long-term operation to simulate the switching of the power supply under different working conditions. The driving power supply can also be connected to a constant power load for long-term operation, which can simulate the use of the power supply under different brightness or power requirements and further evaluate its adaptability and stability.

[0049] like Figure 8 and Fig. 9 As shown, in the present embodiment, a toothed ring 442 meshing with a rack 470 is fixedly sleeved on the outer side of the disk 440. When the traction rope 521 pulls the moving block 420 to move back and forth along the guide rail 410, the toothed ring 442 meshes and rotates with the rack 470, and the disk 440 rotates. The rotation of the disk 440 enables the multiple telescopic parts 460 on its outer side to slide with the pressure sensor 461 at different positions on the outer side of the driving power supply housing. By detecting whether the pressure indication of the pressure sensor 461 at different positions changes, it is determined whether the housing is deformed and aged. A second circular hole is provided in the middle of the disk 440. The second circular hole enables the infrared thermal imager 421 to detect the temperature at different positions of the driving power supply through the disk 440, so as to evaluate the heat dissipation performance of the driving power supply.

[0050] like Figure 1 , Figure 2 and Figure 8 As shown, in this embodiment, the traction mechanism 500 includes two shafts 510 rotatably connected to the corresponding position columns 120 respectively, and a plurality of winding wheels 520 are sleeved and fixed on the outer side of the shaft 510. A traction rope 521 is wound and fixed between the two winding wheels 520. The traction rope 521 is fixed to the corresponding position multiple moving blocks 420. The traction mechanism 500 also includes two motors 530 fixedly connected to the measurement and control board 110, and the output end of the motor 530 is fixed to the bottom end of the corresponding position of the peripheral trunk.

[0051] In this embodiment, the output end of a motor 530 drives an axis rod 510 to rotate so that multiple winding wheels 520 outside the axis rod 510 rotate to reel in the traction rope 521, and the output end of another motor 530 drives another axis rod 510 to rotate so that multiple winding wheels 520 outside the axis rod 510 rotate to release the traction rope 521, so that the two relatively arranged winding wheels 520 can pull the traction rope 521 to enable multiple moving blocks 420 on the same partition 130 to move simultaneously, so that the infrared thermal imagers 421 on the multiple moving blocks 420 can simultaneously detect the working temperatures of multiple driving power supplies, or utilize the moving blocks 420 to move to drive the pressure sensors 461 on the multiple telescopic parts 460 to detect whether the outer shell of the driving power supply is deformed.

[0052] like Figure 8 and Fig. 9As shown, in this embodiment, the deformation temperature measurement module 400 also includes an annular block 430 fixedly connected to one side of the moving block 420, an annular groove 441 rotatably connected to the annular block 430 is provided on one side of the disk 440, and a curved pipe 450 with sealed ends is fixed to the outer side of the disk 440, and both ends of the curved pipe 450 are connected and fixed with a connecting pipe 451 connected to the annular groove 441.

[0053] In this embodiment, connecting rods 422 fixedly connected to the annular block 430 are fixed at both ends of the movable block 420, and a circular blind hole is opened at one end of one of the connecting rods 422, and an intake pipe connected to the circular blind hole is fixed to the bottom of the connecting rod 422, and an electromagnetic valve is installed inside the intake pipe. A plurality of rings 160 are fixed at equal intervals on the top surface of the partition 130, and the rings 160 are connected and fixed to the intake pipe through a hose. The telescopic member 460 includes a sleeve connected and fixed to the bent pipe 450, and a sliding rod is slidably connected to the inside of the sleeve, a return spring 1 is fixed between the sliding rod and the sleeve, and the sliding rod is fixedly connected to the pressure sensor 461.

[0054] In this embodiment, when it is necessary to detect whether the housing of the driving power source is aging and deformed, the solenoid valve inside the air intake pipe is opened, and the air entering the rectangular hole 140 inside the partition 130 enters the air guide pipe 230, and then is transported from the air guide pipe 230 to the air intake pipe through the collar 160 and the hose, and then is transported from the air intake pipe through the circular blind hole to the space between the annular groove 441 and the annular block 430, and finally the air is transported from the space to the inside of the elbow 450 through the connecting pipe 451, and the elbow 450 then disperses the air and transports it to Inside the sleeve of the multiple telescopic parts 460, the increase in air pressure inside the sleeve will cause the sliding rod to slide out from the inside of the sleeve, and then the sliding rod with the pressure sensor 461 will abut against the shell of the driving power supply. When the pressure sensor 461 moves to the outer side of the shell to a deformed convex position, the pressure indication of the pressure sensor 461 will become larger. When the pressure sensor 461 moves to the outer side of the shell to a deformed concave position, the pressure indication of the pressure sensor 461 will become smaller, thereby judging whether the shell has changed based on the change in the indication of the pressure sensor 461.

[0055] like Fig. 9 As shown, in this embodiment, a rotating ring 423 rotatably connected to the disc 440 is fixed at one end of the moving block 420, so that the disc 440 can stably rotate on the moving block 420. In addition, an electric slip ring of the prior art can be installed on the rotating ring 423 to facilitate power supply to the pressure sensor 461 on the rotating disc 440 through the electric slip ring, wherein a hemispherical block is fixed at the end of the pressure sensor 461, so that the end of the slide rod can move smoothly on the driving power supply housing.

[0056] like Figure 8As shown, in this embodiment, the curved pipe 450 is bent near the middle of the disk 440 to prevent the curved pipe 450 from obstructing the temperature measurement of the infrared thermal imager 421.

[0057] like Figure 5 and Figure 7 As shown, in the present embodiment, a safety valve 222 is connected and installed at the top of the cover plate 220. When the temperature control cover 200 needs to be pressurized, the safety valve 222 can be closed. During the pressurization process, the air inside the air duct 230 is also conveniently transported to the hose position through the collar 160. After the air duct 230 is inserted into the rectangular hole 140, the air outlet hole 1 231 opened at the bottom of the air duct 230 is connected to the inner cavity of the collar 160, and the air outlet hole 232 opened at the bottom of the air duct 230 is connected to the rectangular hole 140, so as to facilitate the transportation of the air inside the rectangular hole 140 to the temperature control cover 200 or the telescopic member 460.

[0058] like Figure 3 and Figure 4 As shown, in this embodiment, an electromagnet 224 is fixed to one side of the cover plate 220. After the cover plate 220 is closed onto the baffle 210, the electromagnet 224 is adsorbed and fixed to the iron sheet 132 on the partition 130, thereby fixing the cover plate 220 on the top of the baffle 210.

[0059] like Figure 1 and Figure 3 As shown, in this embodiment, a plurality of branch pipes 1 are connected and fixed to the outside of the gas pipe 150, and the branch pipe 1 is connected to the L-shaped hole 121 inside the column 120, and the branch pipe 2 outside the gas pipe 150 is connected to the external heating equipment. The heating equipment transmits heat to the branch pipe 2 so that the gas pipe 150 transmits heat to the rectangular holes 140 inside the plurality of partitions 130 through the L-shaped hole 121.

[0060] Embodiment 2, based on embodiment 1, is to realize synchronous electrical connection of the cables at both ends of the driving power source to the cover plate 220 during the process of closing the cover plate 220, thereby eliminating the need for manual wiring of the driving power source to be detected.

[0061] like Figure 5 and Figure 7 As shown, in this embodiment, the support assembly 300 includes two support plates 310 that are fixedly connected to the partition 130, a special-shaped block 311 is fixed on the top of the support plate 310, a support plate 320 is fixed between the tops of the two support plates 310, and contact pieces 221 that are electrically in contact with the cables at both ends of the driving power supply are installed and fixed on the inner sides of both ends of the cover plate 220, and two detection lines 223 are electrically connected to the back side of the cover plate 220.

[0062] In this embodiment, after the driving power supply is placed on the support plate 320, the cables at both ends of the driving power supply are separated by the special-shaped blocks 311 and arranged on the outside of the support plate 310. When the cover plate 220 is closed, the contact pieces 221 on the inner sides of both ends of the cover plate 220 can be squeezed on the outside of the cable connector, thereby realizing electrical connection between the cable and the cover plate 220. The support plate 320 is a mesh structure, which is convenient for studying the influence of high temperature environment on the aging of the driving power supply. The mesh structure helps hot air to pass through. At this time, the safety valve 222 on the top of the cover plate 220 is opened, so that the hot air flow inside the temperature control cover 200 will not produce a high-pressure environment, thereby realizing the study of the influence of a single high-temperature environment on the aging of the driving power supply.

[0063] Embodiment 3, based on embodiment 1, in order to enable the temperature control covers 200 at different positions to be individually connected to the rectangular holes 140, when the cover 220 of the temperature control cover 200 is opened to remove the damaged driving power supply, the rectangular holes 140 automatically disconnect the hot air supply to the temperature control cover 200.

[0064] like Figure 3 and Figure 7 As shown, in this embodiment, a plurality of circular holes 131 for convenient insertion of the air guide tube 230 are provided at equal intervals on the top of the rectangular hole 140, a return spring 2 is fixed inside the rectangular hole 140 and below the circular hole 131, and a sealing cylinder 170 is fixed to the bottom end of the return spring 2.

[0065] In this embodiment, after the air guide tube 230 leaves the rectangular hole 140, the elastic force of the return spring 2 inside the sealing tube 170 will cause the sealing tube 170 to move up and abut against the bottom of the circular hole 131, preventing the hot air flow inside the rectangular hole 140 from leaking from the circular hole 131, thereby ensuring the stability of the hot air flow inside the rectangular hole 140.

[0066] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0067] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A device for detecting the anti-aging ability of LED driving power supply, characterized in that: include: A detection rack (100), the detection rack (100) comprising a plurality of partitions (130), a rectangular hole (140) being provided through the middle of the partition (130), and an air delivery pipe (150) capable of delivering warm air to the rectangular holes (140) being arranged between one ends of the plurality of rectangular holes (140); A plurality of temperature control covers (200) are fixed on the top of the partition (130) at corresponding positions, the temperature control covers (200) comprising a baffle (210), a cover plate (220) is detachably fixed on the outer side of the baffle (210), and an air guide tube (230) connected to the rectangular hole (140) is fixed on the inner side of the cover plate (220); A plurality of support components (300) are respectively arranged inside the temperature control cover (200) at corresponding positions, and are used to support and fix the driving power supply, and to electrically connect the cables at both ends of the driving power supply to the cover plate (220); A plurality of deformation temperature measurement modules (400) are respectively arranged inside the temperature control cover (200) at corresponding positions, the plurality of deformation temperature measurement modules (400) comprising a guide rail (410) fixed to a baffle (210), a moving block (420) sliding inside the guide rail (410), an infrared thermal imager (421) embedded and fixed inside the moving block (420), a disc (440) rotating outside the moving block (420), a plurality of telescopic members (460) fixed outside the disc (440), a pressure sensor (461) installed at one end of the telescopic member (460), and a rack (470) meshing and transmitting with the disc (440) fixed at the top of the guide rail (410); The traction mechanism (500) is used to drive the plurality of moving blocks to move inside the guide rail (410).

2. The LED driving power supply anti-aging ability detection device according to claim 1 is characterized in that: The detection frame (100) further comprises: A measurement and control board (110) is fixed to the rear side of the plurality of partitions (130), and an electrical parameter tester for detecting the electrical performance of the driving power supply is installed and fixed to the rear side of the measurement and control board (110); There are two upright posts (120), which are respectively fixed at two ends of the measurement and control board (110).

3. The LED driving power supply anti-aging ability detection device according to claim 1 is characterized in that: The support assembly (300) comprises: There are two support plates (310), both of which are fixedly connected to the partition plate (130), and a special-shaped block (311) is fixed on the top of the support plate (310); The supporting plate (320) is fixed on the top of the two supporting plates (310).

4. The LED driving power supply anti-aging ability detection device according to claim 1, characterized in that: Contact pieces (221) that are in electrical contact with cables at both ends of the driving power supply are fixedly mounted on the inner sides of both ends of the cover plate (220), and the rear side of the cover plate (220) is electrically connected to two detection lines (223).

5. The LED driving power supply anti-aging ability detection device according to claim 1, characterized in that: A toothed ring (442) meshing with the rack (470) for transmission is sleeved and fixed on the outer side of the disk (440), and a second circular hole is opened in the middle of the disk (440).

6. The LED driving power supply anti-aging ability detection device according to claim 1, characterized in that: A plurality of circular holes (131) for convenient insertion of the air guide tube (230) are provided at equal intervals on the top of the rectangular hole (140); a return spring (2) is fixed inside the rectangular hole (140) and below the circular hole (131); a sealing cylinder (170) is fixed to the bottom end of the return spring (2).

7. The LED driving power supply anti-aging ability detection device according to claim 1, characterized in that: The traction mechanism (500) comprises: There are two shafts (510), both of which are rotatably connected to the detection frame (100); a plurality of winding wheels (520) are sleeved and fixed on the outer side of the shafts (510); a traction rope (521) is wound and fixed between two winding wheels (520); and the traction rope (521) is fixed to a plurality of moving blocks (420) at corresponding positions; There are two motors (530), each of which is used to drive the corresponding shaft (510) to rotate.

8. The LED driving power supply anti-aging ability detection device according to claim 1, characterized in that: The deformation temperature measurement module (400) further includes: The annular block (430) is fixed on one side of the moving block (420), and an annular groove (441) rotatably connected to the annular block (430) is formed on one side of the disc (440); The bent pipe (450) with sealed ends is fixed on the outside of the disc (440), and both ends of the bent pipe (450) are connected and fixed with connecting pipes (451) connected with the annular groove (441).

9. The LED driving power supply anti-aging ability detection device according to claim 8, characterized in that: The telescopic member (460) comprises a sleeve connected and fixed to the curved pipe (450), a sliding rod is slidably connected inside the sleeve, a return spring 1 is fixed between the sliding rod and the sleeve, and the sliding rod is fixedly connected to the pressure sensor (461).

10. The LED driving power supply anti-aging ability detection device according to claim 9, characterized in that: Connecting rods (422) are fixed between both ends of the moving block (420) and the annular block (430), and a plurality of collars (160) are fixed at equal intervals on the top surface of the partition (130), and the collars (160) are connected to the annular groove (441) through a hose.

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