LED driving power supply testing machine and testing method

Abstract

The application discloses an LED driving power supply testing machine and a testing method, wherein the LED driving power supply testing machine comprises a testing machine box, a high-low temperature testing mechanism, a storage type ventilation mechanism and a dust filtering and energy storing mechanism. The high-low temperature testing mechanism comprises a heat preservation box body, a ventilation inner box body is fixedly arranged in the heat preservation box body, a temperature sensor is fixedly arranged in the ventilation inner box body, a heating control assembly is fixedly arranged above the heat preservation box body, and a cooling control assembly is fixedly arranged below the heat preservation box body. The storage type ventilation mechanism comprises a pair of hot air storage tanks and a pair of cold air storage tanks. According to different testing states, the storage type ventilation mechanism can be used for storing and circulating hot air and cold air in a testing space, so that the operation energy consumption in the high-low temperature testing process of the LED driving power supply is reduced, and the temperature regulation efficiency and energy saving and environmental protection performance of the high-low temperature testing equipment of the LED driving power supply are remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of LED driving power supply testing, and particularly relates to an LED driving power supply testing machine and a testing method. BACKGROUND

[0002] An LED driving power supply is a power converter that converts power supply into specific voltage and current to drive LED to emit light. It mainly converts alternating current into direct current through a transformer and a rectifier. An LED driving power supply testing machine is a mechanical device for testing the performance reliability and mechanical reliability of an LED driving power supply. After the production and processing of an LED driving power supply, it needs to be tested for performance reliability, such as input and output voltage, current, anti-interference, load, and mechanical reliability, such as pressure resistance, high and low temperature.

[0003] The common high and low temperature testing process of an LED driving power supply mainly includes the following steps: a high temperature testing stage, a cooling constant temperature testing stage, a low temperature testing stage, and a high and low temperature impact testing stage. Therefore, when an LED driving power supply testing machine tests the high and low temperature of an LED driving power supply, it needs to go through the stages of heating, cooling constant temperature, cooling, and alternating heating and cooling.

[0004] The common high and low temperature testing equipment of an LED driving power supply in the prior art mainly includes a box, a ventilation system, a heating system, a cooling system, and a control system. The heating system is generally composed of heating wires and other auxiliary accessories. The cooling system is composed of a condenser, an evaporator, a compressor, an expansion valve, and other auxiliary accessories. The heating system and the cooling system are connected to the testing space through the ventilation system, and the temperature of the testing space is adjusted by sending high temperature gas or low temperature gas to the testing space through the ventilation system.

[0005] However, since the LED driving power supply needs to be heated and cooled alternately during high and low temperature testing, single ventilation will interfere with the heating system and the cooling system, resulting in high energy consumption and poor temperature regulation efficiency of the LED driving power supply high and low temperature testing equipment. At the same time, the mutual flow of high temperature gas and low temperature gas will cause damage to the mechanical parts in the heating system and the cooling system, thereby shortening the service life of the LED driving power supply high and low temperature testing equipment.

[0006] The information disclosed in this BACKGROUND section is only intended to increase an understanding of the general background of the application and should not be taken as an acknowledgement or any form of suggestion that this information forms prior art that is already known to those of ordinary skill in the art. SUMMARY

[0007] The purpose of this invention is to provide an LED driver power supply tester and test method, which can improve the efficiency and energy saving and environmental protection of high and low temperature testing of LED driver power supplies.

[0008] To achieve the above objectives, the technical solution provided by a specific embodiment of the present invention is as follows:

[0009] An LED driver power supply tester includes: a test chassis, a high and low temperature test mechanism, a storage-type ventilation mechanism, and a dust filter and energy storage mechanism.

[0010] The high and low temperature testing mechanism is fixedly assembled inside the testing chassis. The high and low temperature testing mechanism includes an insulated box, which is fixedly assembled inside the testing chassis. A ventilated inner box is fixedly assembled inside the insulated box, and a temperature sensor is fixedly assembled inside the ventilated inner box. A ventilation guide cavity is formed between the insulated box and the ventilated inner box. A heating control component is fixedly assembled above the insulated box, and a cooling control component is fixedly assembled below the insulated box. A flow guiding and limiting component is assembled inside the ventilation guide cavity.

[0011] The storage-type ventilation mechanism is fixedly assembled on the outside of the insulation box. The storage-type ventilation mechanism includes a pair of hot air storage tanks and a pair of cold air storage tanks. The hot air storage tanks and cold air storage tanks are arranged on both sides of the insulation box. The pair of hot air storage tanks are configured in conjunction with the heating control component, and the pair of cold air storage tanks are configured in conjunction with the cooling control component.

[0012] The dust filter energy storage mechanism is fixedly assembled on the outside of the insulated box. The dust filter energy storage mechanism includes multiple sets of dust filter cylinders, which are rotatably assembled inside a pair of hot air storage tanks and cold air storage tanks. The dust filter energy storage mechanism is used to remove dust, dehumidify, and retain heat to recover the air guided by the hot air storage tanks and cold air storage tanks.

[0013] In one or more embodiments of the present invention, a control panel is fixedly mounted on one side of the test chassis. The test status of the test chassis is controlled via the control panel. Multiple sets of thermal insulation partitions are fixedly connected inside the test chassis, dividing it into a heating and insulation chamber, a test chamber, a cooling and insulation chamber, and an assembly chamber. The heating and insulation chamber is used for assembling and thermally limiting the heating components; the test chamber is used for assembling and limiting the high and low temperature testing mechanism and the storage ventilation mechanism; and the cooling and insulation chamber is used for assembling and cooling the condenser tubes.

[0014] In one or more embodiments of the present application, the upper and lower sides of the heat preservation box are fixedly connected with air inlet expansion pipes, which are communicated with the ventilation guide cavity. The hot air and cold air can be conveniently delivered into the ventilation guide cavity through the pair of air inlet expansion pipes. The air inlet expansion pipe is rotatably assembled with a guide wind wheel on one side in the ventilation guide cavity. The hot air or cold air discharged from the air inlet expansion pipe is guided by the rotation of the guide wind wheel under the action of the air flow, thereby improving the uniformity of the delivery of the hot air and cold air. The ventilation inner box is slidably assembled with a plurality of supporting trays. The LED driving power supply to be tested is supported by the plurality of supporting trays.

[0015] In one or more embodiments of the present application, the heating control assembly comprises a heating heat preservation box fixedly assembled in the heat preservation partition. The heating heat preservation box plays a role of assembly limiting and heating preservation for the heating resistance wire. The heating heat preservation box is assembled with a heating resistance wire. The air in the heating heat preservation box is heated by controlling the operation of the heating resistance wire. The heating heat preservation box is fixedly communicated with a heating exhaust pipe on the side close to the heat preservation box. The hot air in the heating heat preservation box is discharged through the heating exhaust pipe. The heating electromagnetic conduction valve is fixedly connected between the heating exhaust pipe and the air inlet expansion pipe. The opening and closing state of the heating exhaust pipe and the air inlet expansion pipe is controlled by the heating electromagnetic conduction valve.

[0016] In one or more embodiments of the present application, the cooling control assembly comprises a cooling heat preservation box fixedly assembled in the cooling heat preservation chamber. The cooling heat preservation box plays a role of assembly limiting and cooling preservation for the condenser pipe. The cooling heat preservation box is fixedly assembled with a condenser pipe. The air in the cooling heat preservation box is cooled by the condenser pipe. The cooling heat preservation box is fixedly connected with a cooling exhaust pipe on the side close to the heat preservation box. The cooling exhaust pipe discharges the cold air in the cooling heat preservation box. The cooling electromagnetic conduction valve is fixedly connected between the cooling exhaust pipe and the air inlet expansion pipe. The conduction state of the cooling exhaust pipe and the air inlet expansion pipe is controlled by the cooling electromagnetic conduction valve.

[0017] In one or more embodiments of the present application, the flow guide limiting component includes a pair of partition baffles, which are symmetrically arranged on both sides of the ventilation flow guide cavity. The ventilation flow guide cavity is divided into upper and lower parts by controlling the rotation of the partition baffles, thereby facilitating the control of the extraction and delivery of hot air and cold air in the ventilation inner box. A driving shaft is fixedly connected to each of the partition baffles. The driving shaft serves to assemble and fix the partition baffles and control their rotation. A synchronous pulley is fixedly connected to one end of each of the driving shafts outside the heat preservation box. The driving shafts are driven to rotate by driving the synchronous pulleys to rotate, thereby facilitating the control of the state of the partition baffles. A synchronous belt is sleeved outside the synchronous pulleys. The synchronous belt serves to connect the synchronous pulleys. A driving motor is fixedly arranged on the outside of the heat preservation box. The output shaft of the driving motor is in transmission connection with the driving shaft. The driving motor serves to provide power and control the rotation of the driving shaft by controlling the operation of the driving motor.

[0018] In one or more embodiments of the present application, first and second air extraction pipes are fixedly connected to one side of each of the hot air storage tanks close to the heat preservation box and are arranged on both sides of the partition baffle. The ventilation flow guide cavity and the hot air storage tank are communicated through the first and second air extraction pipes, thereby facilitating the control of the delivery and extraction of hot air in the ventilation inner box by the hot air storage tank. A first conduction electromagnetic valve is fixedly connected to one side of the first air extraction pipe close to the heat preservation box. The conduction state of the first air extraction pipe is controlled by the first conduction electromagnetic valve. A second conduction electromagnetic valve is fixedly connected to one side of the second air extraction pipe close to the heat preservation box. The conduction state of the second air extraction pipe is controlled by the second conduction electromagnetic valve. A guide air pipe is in communication between the first and second conduction electromagnetic valves and the ventilation flow guide cavity. The hot air in the ventilation flow guide cavity is extracted and delivered through the guide air pipe.

[0019] In one or more embodiments of the present application, third and fourth air extraction pipes are fixedly connected to one side of each of the cold air storage tanks close to the heat preservation box and are arranged on both sides of the first conduction electromagnetic valve. The delivery and extraction of cold air in the ventilation flow guide cavity are controlled by the third and fourth air extraction pipes. A third conduction electromagnetic valve is fixedly connected to one side of the third air extraction pipe close to the heat preservation box. The third conduction electromagnetic valve controls the conduction state of the third air extraction pipe. A fourth conduction electromagnetic valve is fixedly connected to one side of the fourth air extraction pipe close to the heat preservation box. The fourth conduction electromagnetic valve controls the conduction state of the fourth air extraction pipe. A communication air pipe is in communication between the third and fourth conduction electromagnetic valves and the ventilation flow guide cavity. The delivery and extraction of cold air in the ventilation inner box are controlled by the communication air pipe.

[0020] In one or more embodiments of the present application, a pair of hot air storage tanks are each fixedly fitted with a hot air exhaust fan. The gas in the hot air storage tank is extracted by controlling the operation of the hot air exhaust fan. A hot air communication pipe is fixedly connected between the pair of hot air storage tanks, and the hot air communication pipe is in communication with the heating incubator. The hot air communication pipe serves to communicate the hot air storage tank and the heating incubator, facilitating the air in the hot air storage tank to be transported to the heating incubator along the hot air communication pipe under the action of the hot air exhaust fan. A hot backflow communication electromagnetic valve is fixedly fitted to the outside of the hot air communication pipe. The hot backflow communication electromagnetic valve controls the communication state of the hot air communication pipe. A pair of cold air storage tanks are each fixedly fitted with a cold air exhaust fan. The air in the cold air storage tank is extracted by controlling the operation of the cold air exhaust fan. A cold air communication pipe is fixedly connected between the pair of cold air storage tanks, and the cold air communication pipe is in communication with the cooling incubator. The cold air communication pipe serves to communicate the cold air storage tank and the cooling incubator, facilitating the air in the cold air storage tank to be transported to the cooling incubator along the cold air communication pipe. A cold backflow communication electromagnetic valve is fixedly fitted to the outside of the cold air communication pipe. The cold backflow communication electromagnetic valve controls the communication state of the cold air communication pipe.

[0021] A test method of an LED driving power supply, comprising the following steps:

[0022] S1, when the high and low temperature test of the LED driving power supply is carried out, the door of the test case is opened, the LED driving power supply to be tested is placed in the supporting tray, and then the door is closed to close and engage the heat preservation box, thereby completing the feeding process of the LED driving power supply to be tested;

[0023] S2, in the high temperature test stage, the fourth communication electromagnetic valve and the hot backflow communication electromagnetic valve are opened by controlling the control panel, and a pair of hot air exhaust fans are controlled to operate, so that the air in the ventilation inner box is transported to the hot air storage tank along the ventilation flow cavity, the guide air pipe and the second exhaust pipe under the action of the hot air exhaust fan, and is transported to the heating incubator along the hot air communication pipe. The air in the heating incubator is heated by controlling the heating resistance wire to generate heat, after the heating is completed, the heating electromagnetic communication valve is opened, so that the hot air in the heating incubator is transported to the ventilation flow cavity along the heating exhaust pipe and the air inlet flow pipe, the hot air is transported to the ventilation inner box through the ventilation flow cavity, and the ventilation inner box is heated, the temperature in the ventilation inner box is monitored by the temperature sensor during the heating process, so that the LED driving power supply is tested.

[0024] S3, the cooling constant temperature test stage, after the temperature test is completed, the heating resistance wire stops power supply, the second electromagnetic valve, the heating electromagnetic valve and the hot air communication pipe are closed, the first electromagnetic valve is opened, so that the hot air exhaust fan can extract the hot air in the temperature sensor during operation, the hot air is extracted and temporarily stored through a pair of hot air storage tanks, and meanwhile, the condensing pipe is controlled to operate, the cooling electromagnetic valve, the fourth electromagnetic valve and the cold return electromagnetic valve are opened, and the cold air exhaust fan is controlled to operate, so that the cold air in the cooling incubator can be transported to the ventilation inner box through the guide air pipe, the cold air storage tank and the communication air pipe under the action of the cold air exhaust fan, the temperature in the ventilation inner box is adjusted to the constant temperature test stage through the mode that the upper half of the ventilation inner box is extracted by hot air and the lower half of the ventilation inner box is transported by cold air, so as to perform constant temperature test on the LED driving power supply;

[0025] S4, the low temperature test stage, the hot air extraction state of the ventilation inner box is stopped through the mode that the first electromagnetic valve is closed and the hot air exhaust fan is stopped, and the temperature in the ventilation inner box is adjusted to the low temperature test stage through the mode that cold air is continuously transported into the ventilation inner box, so as to perform low temperature test on the LED driving power supply;

[0026] S5, the high-low temperature alternating test stage, in the process of high-low temperature alternating test, the ventilation inner box can be temperature adjusted through the mode that the hot air is extracted and transported by the hot air storage tank, and the cold air is extracted and transported by the cold air storage tank, so as to perform high-low temperature alternating test on the LED driving power supply;

[0027] S6, after the LED driving power supply test is completed, the box door of the test case is opened, the LED driving power supply is taken out, and the high-low temperature test process of the LED driving power supply is completed.

[0028] Compared with the prior art, the storage type ventilation mechanism is arranged, the hot air and the cold air in the test space can be stored and circulated according to different test states, the mutual interference of the hot air and the cold air in the test space is greatly reduced, the operation energy consumption in the high-low temperature test process of the LED driving power supply is reduced, the damage of the high-low temperature gas to the mechanical parts in the heating system and the cooling system is greatly reduced, the service life of the high-low temperature test equipment of the LED driving power supply is prolonged, and the temperature adjustment efficiency and the energy saving and environmental protection property of the high-low temperature test equipment of the LED driving power supply are significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to make the technical solutions of the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 FIG. 1 is a first front sectional view of an LED driving power supply testing machine according to an embodiment of the present application;

[0031] Figure 2 FIG. 2 is a partial structure perspective view of the LED driving power supply testing machine according to the embodiment of the present application; Figure 1 FIG. 3 is a structure schematic view of A in FIG. 1;

[0032] Figure 3 FIG. 4 is another partial structure perspective view of the LED driving power supply testing machine according to the embodiment of the present application;

[0033] Figure 4 FIG. 5 is a structure schematic view of B in FIG. 1; Figure 3

[0034] FIG. 6 is a structure schematic view of C in FIG. 1; Figure 5 Figure 3 FIG. 7 is a structure schematic view of D in FIG. 1;

[0035] Figure 6 FIG. 8 is a second front sectional view of the LED driving power supply testing machine according to the embodiment of the present application;

[0036] Figure 7 Figure 6 FIG. 9 is a structure schematic view of E in FIG. 1;

[0037] Figure 8 FIG. 10 is a structure schematic view of F in FIG. 1;

[0038] Figure 9 FIG. 11 is a structure schematic view of G in FIG. 1; Figure 8

[0039] FIG. 12 is a structure schematic view of H in FIG. 1; Figure 10 Figure 8 FIG. 13 is a perspective view of the LED driving power supply testing machine according to the embodiment of the present application.

[0040] Figure 11 Figure 8

[0041] Figure 12 Figure 8

[0042] Figure 13

[0043] Main figure mark explanation:​​​​​​​​

[0044] 1-Test chassis, 101-Control panel, 102-Insulation partition, 103-Heating and insulation chamber, 104-Test chamber, 105-Cooling and insulation chamber, 106-Assembly chamber, 2-High and low temperature testing mechanism, 201-Insulated box body, 202-Ventilated inner box body, 203-Temperature sensor, 204-Inlet diffuser pipe, 205-Guide fan wheel, 206-Support tray, 207-Heating and insulation box, 2 08-Heating resistance wire, 209-Heating exhaust pipe, 210-Heating electromagnetic valve, 211-Cooling and insulation box, 212-Condenser pipe, 213-Cooling exhaust pipe, 214-Cooling electromagnetic valve, 215-Separating baffle, 216-Drive shaft, 217-Synchronous pulley, 218-Synchronous belt, 219-Drive motor, 3-Storage ventilation mechanism, 301-Hot air storage tank, 302-Cold air storage tank Air storage tank, 303-First exhaust pipe, 304-Second exhaust pipe, 305-First solenoid valve, 306-Second solenoid valve, 307-Guiding air pipe, 308-Third exhaust pipe, 309-Fourth exhaust pipe, 310-Third solenoid valve, 311-Fourth solenoid valve, 312-Connecting air pipe, 313-Hot air exhaust fan, 314-Hot air connecting pipe, 315-Hot recirculation pipe 316-Solenoid valve, 317-Cold air exhaust fan, 318-Cold air connecting pipe, 4-Cold return flow solenoid valve, 4-Dust filter energy storage mechanism, 401-Dust filter cylinder, 402-Assembly shaft, 403-Drive pulley, 404-Transmission belt, 405-Rotary motor, 406-Storage mesh frame, 407-Porous storage ball, 408-Dehumidification energy storage core layer, 409-Cleaning fixing plate, 410-Dust cleaning brush. Detailed Implementation

[0045] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.

[0046] like Figures 1 to 13 As shown, an LED driver power supply tester according to one embodiment of the present invention includes: a test chamber 1, a high and low temperature test mechanism 2, a storage ventilation mechanism 3, and a dust filtration and energy storage mechanism 4.

[0047] like Figure 1 As shown, a control panel 101 is fixedly mounted on one side of the test chassis 1. The test status of the test chassis 1 is controlled through the control panel 101.

[0048] As shown in Figure 1 The test case 1 is fixedly connected with a plurality of groups of heat preservation partitions 102, and the plurality of groups of heat preservation partitions 102 divide the test case 1 into a heating and heat preservation chamber 103, a test chamber 104, a cooling and heat preservation chamber 105, and an assembly chamber 106. The heating assembly is assembled and heat preservation limited through the heating and heat preservation chamber 103, the test chamber 104 is used for assembling and limiting the high and low temperature test mechanism 2 and the storage type ventilation mechanism 3, and the cooling and heat preservation chamber 105 is used for assembling and cooling the condenser pipe 212.

[0049] As shown in Figures 1 to 4 The high and low temperature test mechanism 2 is fixedly assembled in the test case 1, and the high and low temperature test mechanism 2 comprises a heat preservation box body 201 fixedly assembled in the test case 1. The ventilation inner box body 202 is assembled and limited and heat preservation treated through the heat preservation box body 201.

[0050] As shown in Figures 1 to 4 The heat preservation box body 201 is fixedly assembled with the ventilation inner box body 202. The supporting tray 206 is supported and limited through the ventilation inner box body 202. At the same time, the air in the ventilation flow guiding cavity can be heat treated through the ventilation inner box body 202.

[0051] Specifically, the heat preservation box body 201 and the ventilation inner box body 202 cooperate to form a ventilation flow guiding cavity. The ventilation flow guiding cavity plays a role of auxiliary heat preservation for the ventilation inner box body 202. At the same time, the hot air or cold air can be guided through the ventilation flow guiding cavity, so that the ventilation inner box body 202 can be uniformly heated or cooled.

[0052] As shown in Figures 1 to 2 The temperature sensor 203 is fixedly assembled in the ventilation inner box body 202. The temperature in the ventilation inner box body 202 can be monitored in real time through the temperature sensor 203.

[0053] As shown in Figures 1 to 2 The upper and lower sides of the heat preservation box body 201 are fixedly connected with the air inlet expansion pipes 204, and the air inlet expansion pipes 204 are communicated with the ventilation flow guiding cavity. The hot air and cold air can be delivered into the ventilation flow guiding cavity through the pair of air inlet expansion pipes 204.

[0054] As shown in Figures 1 to 2 The air inlet expansion pipe 204 is rotatably assembled with the flow guiding fan 205 on one side in the ventilation flow guiding cavity. The hot air or cold air discharged from the air inlet expansion pipe 204 is guided through the rotating mode of the flow guiding fan 205, which improves the uniformity of the delivery of the hot air and cold air.

[0055] As shown in Figures 3 to 4As shown, a plurality of supporting plates 206 are slidingly assembled in the ventilation inner box 202. The LED drive power to be tested is carried by the plurality of supporting plates 206.

[0056] As shown in Figures 1 to 3 The heating control assembly is fixedly assembled above the heat preservation box 201, and comprises a heating heat preservation box 207 fixedly assembled in the heat preservation partition 102. The heating heat preservation box 207 plays a role of assembly limiting and heating preservation for the heating resistance wire 208.

[0057] As shown in Figures 1 to 3 The heating heat preservation box 207 is assembled with the heating resistance wire 208. The air in the heating heat preservation box 207 is heated by controlling the operation of the heating resistance wire 208.

[0058] As shown in Figures 1 to 2 The heating exhaust pipe 209 is fixedly connected to the side of the heating heat preservation box 207 close to the heat preservation box 201. The hot air in the heating heat preservation box 207 is discharged through the heating exhaust pipe 209.

[0059] As shown in Figures 1 to 2 The heating electromagnetic conduction valve 210 is fixedly connected between the heating exhaust pipe 209 and the air inlet expansion pipe 204. The opening and closing state of the heating exhaust pipe 209 and the air inlet expansion pipe 204 is controlled by the heating electromagnetic conduction valve 210.

[0060] As shown in Figures 1 to 3 The cooling control assembly is fixedly assembled below the heat preservation box 201, and comprises a cooling heat preservation box 211 fixedly assembled in the cooling heat preservation chamber 105. The cooling heat preservation box 211 plays a role of assembly limiting and cooling preservation for the condenser pipe 212.

[0061] As shown in Figures 1 to 3 The condenser pipe 212 is fixedly assembled in the cooling heat preservation box 211. The air in the cooling heat preservation box 211 is cooled by the condenser pipe 212.

[0062] Specifically, the compressor, the evaporator and the four-way valve are assembled in the assembly chamber 106, so as to provide low-temperature refrigerant for the condenser pipe 212, thereby cooling the air in the cooling heat preservation box 211.

[0063] As shown in Figure 1 The cooling exhaust pipe 213 is fixedly connected to the side of the cooling heat preservation box 211 close to the heat preservation box 201. The cold air in the cooling heat preservation box 211 is discharged through the cooling exhaust pipe 213.

[0064] As shown in Figure 1As shown, the cooling exhaust pipe 213 and the air inlet expansion pipe 204 are fixedly connected with a cooling electromagnetic conduction valve 214. The cooling electromagnetic conduction valve 214 controls the conduction state of the cooling exhaust pipe 213 and the air inlet expansion pipe 204.

[0065] As shown, the ventilation flow guide cavity is equipped with a flow guide limiting assembly. The flow guide limiting assembly includes a pair of partition baffles 215, which are symmetrically arranged on both sides of the ventilation flow guide cavity. The ventilation flow guide cavity is divided into two parts by controlling the rotation of the partition baffles 215, so as to control the extraction and delivery of hot air and cold air in the ventilation inner box 202. Figures 3 to 4 As shown, the ventilation flow guide cavity is equipped with a flow guide limiting assembly. The flow guide limiting assembly includes a pair of partition baffles 215, which are symmetrically arranged on both sides of the ventilation flow guide cavity. The ventilation flow guide cavity is divided into two parts by controlling the rotation of the partition baffles 215, so as to control the extraction and delivery of hot air and cold air in the ventilation inner box 202.

[0066] Figures 3 to 4 As shown, the ventilation flow guide cavity is equipped with a flow guide limiting assembly. The flow guide limiting assembly includes a pair of partition baffles 215, which are symmetrically arranged on both sides of the ventilation flow guide cavity. The ventilation flow guide cavity is divided into two parts by controlling the rotation of the partition baffles 215, so as to control the extraction and delivery of hot air and cold air in the ventilation inner box 202.

[0067] As shown, the ventilation flow guide cavity is equipped with a flow guide limiting assembly. The flow guide limiting assembly includes a pair of partition baffles 215, which are symmetrically arranged on both sides of the ventilation flow guide cavity. The ventilation flow guide cavity is divided into two parts by controlling the rotation of the partition baffles 215, so as to control the extraction and delivery of hot air and cold air in the ventilation inner box 202. Figures 6 to 7 As shown, the ventilation flow guide cavity is equipped with a flow guide limiting assembly. The flow guide limiting assembly includes a pair of partition baffles 215, which are symmetrically arranged on both sides of the ventilation flow guide cavity. The ventilation flow guide cavity is divided into two parts by controlling the rotation of the partition baffles 215, so as to control the extraction and delivery of hot air and cold air in the ventilation inner box 202.

[0068] Figures 6 to 7 As shown, the ventilation flow guide cavity is equipped with a flow guide limiting assembly. The flow guide limiting assembly includes a pair of partition baffles 215, which are symmetrically arranged on both sides of the ventilation flow guide cavity. The ventilation flow guide cavity is divided into two parts by controlling the rotation of the partition baffles 215, so as to control the extraction and delivery of hot air and cold air in the ventilation inner box 202.

[0069] As shown, the ventilation flow guide cavity is equipped with a flow guide limiting assembly. The flow guide limiting assembly includes a pair of partition baffles 215, which are symmetrically arranged on both sides of the ventilation flow guide cavity. The ventilation flow guide cavity is divided into two parts by controlling the rotation of the partition baffles 215, so as to control the extraction and delivery of hot air and cold air in the ventilation inner box 202. Figures 6 to 7 As shown, the ventilation flow guide cavity is equipped with a flow guide limiting assembly. The flow guide limiting assembly includes a pair of partition baffles 215, which are symmetrically arranged on both sides of the ventilation flow guide cavity. The ventilation flow guide cavity is divided into two parts by controlling the rotation of the partition baffles 215, so as to control the extraction and delivery of hot air and cold air in the ventilation inner box 202.

[0070] Figure 3 ​​​As shown, the storage ventilation mechanism 3 is fixedly assembled on the outside of the heat preservation box body 201. The storage ventilation mechanism 3 is used for storage ventilation treatment of the ventilation inner box body 202. The storage ventilation mechanism 3 comprises a pair of hot air storage tanks 301 and a pair of cold air storage tanks 302, the hot air storage tanks 301 and the cold air storage tanks 302 are arranged on both sides of the heat preservation box body 201, and the pair of hot air storage tanks 301 are arranged in cooperation with the heating control assembly. The hot air storage tank 301 is used for storage ventilation of the hot air in the ventilation inner box body 202, thereby reducing the heating energy consumption of the heating resistance wire 208. The pair of cold air storage tanks 302 are arranged in cooperation with the cooling control assembly. The cold air storage tank 302 is used for storage ventilation of the cold air in the ventilation inner box body 202, thereby reducing the cooling energy consumption of the condenser pipe 212. The temperature regulation energy consumption of the LED driving power supply test equipment is reduced.

[0071] As shown in Figures 8 to 10 , the pair of hot air storage tanks 301 are fixedly connected with the first air exhaust pipe 303 and the second air exhaust pipe 304 close to one side of the heat preservation box body 201, and the first air exhaust pipe 303 and the second air exhaust pipe 304 are arranged on both sides of the partition baffle 215. The first air exhaust pipe 303 and the second air exhaust pipe 304 are used for communication between the ventilation flow guide cavity and the hot air storage tank 301, so that the hot air storage tank 301 can control the delivery and extraction state of the hot air in the ventilation inner box body 202.

[0072] As shown in Figures 8 to 10 , the first air exhaust pipe 303 is fixedly connected with the first conduction electromagnetic valve 305 close to one side of the heat preservation box body 201. The first conduction electromagnetic valve 305 is used for controlling the conduction state of the first air exhaust pipe 303.

[0073] As shown in Figures 8 to 10 , the second air exhaust pipe 304 is fixedly connected with the second conduction electromagnetic valve 306 close to one side of the heat preservation box body 201. The second conduction electromagnetic valve 306 is used for controlling the conduction state of the second air exhaust pipe 304.

[0074] As shown in Figures 8 to 10 , the first conduction electromagnetic valve 305 and the second conduction electromagnetic valve 306 are communicated with the guide air pipe 307 between the ventilation flow guide cavity. The guide air pipe 307 is used for extracting and delivering the hot air in the ventilation flow guide cavity.

[0075] As shown in Figures 8 to 12 , the pair of cold air storage tanks 302 are fixedly connected with the third air exhaust pipe 308 and the fourth air exhaust pipe 309 close to one side of the heat preservation box body 201, and the third air exhaust pipe 308 and the fourth air exhaust pipe 309 are arranged on both sides of the first conduction electromagnetic valve 305. The third air exhaust pipe 308 and the fourth air exhaust pipe 309 are used for controlling the delivery and extraction state of the cold air in the ventilation flow guide cavity.

[0076] As shown in Figures 8 to 12 , the third air exhaust pipe 308 is fixedly connected with a third on-off electromagnetic valve 310 close to one side of the heat preservation box 201. The third on-off electromagnetic valve 310 controls the on-off state of the third air exhaust pipe 308.

[0077] As shown in Figures 8 to 12 , the fourth air exhaust pipe 309 is fixedly connected with a fourth on-off electromagnetic valve 311 close to one side of the heat preservation box 201. The fourth on-off electromagnetic valve 311 controls the on-off state of the fourth air exhaust pipe 309.

[0078] As shown in Figures 8 to 12 , the third on-off electromagnetic valve 310 and the fourth on-off electromagnetic valve 311 are both communicated with a communication air pipe 312 between the ventilation flow guide cavity. The communication air pipe 312 controls the delivery and extraction state of the cold air in the ventilation inner box 202.

[0079] As shown in Figures 8 to 10 , the upper part of the pair of hot air storage tanks 301 is fixedly assembled with a hot air exhaust fan 313. The hot air in the hot air storage tank 301 is extracted by controlling the operation of the hot air exhaust fan 313.

[0080] As shown in Figures 8 to 10 , the pair of hot air storage tanks 301 are fixedly connected with a hot air communication pipe 314, and the hot air communication pipe 314 is communicated with the heating heat preservation box 207. The hot air communication pipe 314 connects the hot air storage tank 301 and the heating heat preservation box 207, so that the air in the hot air storage tank 301 is delivered to the heating heat preservation box 207 under the action of the hot air exhaust fan 313.

[0081] As shown in Figures 8 to 10 , the outer side of the hot air communication pipe 314 is fixedly assembled with a hot backflow on-off electromagnetic valve 315. The hot backflow on-off electromagnetic valve 315 controls the on-off state of the hot air communication pipe 314.

[0082] As shown in Figures 8 to 12 , the lower part of the pair of cold air storage tanks 302 is fixedly assembled with a cold air exhaust fan 316. The air in the cold air storage tank 302 is extracted by controlling the operation of the cold air exhaust fan 316.

[0083] As shown in Figures 8 to 12 , the pair of cold air storage tanks 302 are fixedly connected with a cold air communication pipe 317, and the cold air communication pipe 317 is communicated with the cooling heat preservation box 211. The cold air communication pipe 317 connects the cold air storage tank 302 and the cooling heat preservation box 211, so that the air in the cold air storage tank 302 is delivered to the cooling heat preservation box 211 along the cold air communication pipe 317.

[0084] As shown in Figures 8 to 12 , the outer side of the cold air communication pipe 317 is fixedly provided with a cold backflow conduction electromagnetic valve 318. The cold backflow conduction electromagnetic valve 318 controls the conduction state of the cold air communication pipe 317.

[0085] As shown in Figures 8 to 10 , the dust filtering and energy storage mechanism 4 is fixedly provided on the outer side of the heat preservation box 201. The dust filtering and energy storage mechanism 4 is used for dust removal, dehumidification and heat preservation recovery of the air flowing through the hot air storage tank 301 and the cold air storage tank 302.

[0086] As shown in Figures 8 to 10 , the dust filtering and energy storage mechanism 4 includes a plurality of groups of dust filtering net cylinders 401, which are rotatably provided in a pair of hot air storage tanks 301 and cold air storage tanks 302. The dust filtering net cylinders 401 are used for dust filtering treatment of the air transported into the hot air storage tank 301 and the cold air storage tank 302, thereby reducing the pollution and interference of the dust-containing air to the heating resistance wire 208 and the condenser pipe 212.

[0087] As shown in Figures 8 to 9 , one side of each of the plurality of groups of dust filtering net cylinders 401 is fixedly connected with an assembly rotating shaft 402. The assembly rotating shaft 402 is used for assembly, fixation and rotation driving of the dust filtering net cylinder 401. The assembly rotating shaft 402 is driven to rotate by controlling the rotation of the assembly rotating shaft 402, so as to efficiently filter dust and flow the air in the hot air storage tank 301 and the cold air storage tank 302.

[0088] As shown in Figures 3 to 5 , one end of the assembly rotating shaft 402 located outside the hot air storage tank 301 or the cold air storage tank 302 is fixedly connected with a driving belt pulley 403. The driving belt pulley 403 is used for rotation driving of a transmission belt 404. The outer sides of a pair of driving belt pulleys 403 are sleeved with the transmission belt 404. The transmission belt 404 is used for connecting the pair of driving belt pulleys 403, so as to facilitate synchronous rotation of the pair of assembly rotating shafts 402 under the action of the driving belt pulley 403 and the transmission belt 404.

[0089] As shown in Figures 3 to 5 , one end of the transmission belt 404 away from the driving belt pulley 403 is transmissionally connected with a rotary motor 405. The rotary motor 405 is used for providing power, and is used for rotation driving of a single assembly rotating shaft 402 by controlling the operation of the rotary motor 405.

[0090] As shown in Figures 8 to 10 , a plurality of groups of uniformly distributed storage net racks 406 are fixedly connected in the plurality of groups of dust filtering net cylinders 401. The storage net racks 406 are used for storage of the porous storage balls 407.

[0091] As Figures 8 to 10 shown, a plurality of groups of storage net racks 406 are filled with porous storage balls 407. The dehumidification energy storage core layer 408 is positioned by the porous storage balls 407. At the same time, the porous storage balls 407 play a supporting role in dust filtering of the dust filtering net cylinder 401. The dehumidification energy storage core layer 408 is filled in the porous storage balls 407. The dehumidification energy storage core layer 408 dehumidifies the gas filtered by the dust filtering net cylinder 401. At the same time, the dehumidification energy storage core layer 408 can exchange heat with the hot air or cold air delivered, thereby storing energy of the hot air or cold air, and improving the energy-saving and environmental protection of temperature regulation of the ventilation inner box 202.

[0092] As Figures 8 to 10 shown, a plurality of groups of dust filtering net cylinders 401 are fixedly assembled with cleaning fixed plates 409 on one side. The cleaning fixed plates 409 assemble and fix the dust cleaning brushes 410. The cleaning fixed plates 409 are fixedly assembled with the dust cleaning brushes 410 on one side, and the dust cleaning brushes 410 are arranged in cooperation with the dust filtering net cylinder 401. The dust cleaning brushes 410 interact with the dust filtering net cylinder 401 to clean the impurities adhered to the outer surface of the dust filtering net cylinder 401, thereby improving the dust filtering efficiency of the dust filtering net cylinder 401.

[0093] In specific use, the test method of the LED driving power supply is as follows: when the LED driving power supply is tested at high and low temperatures, the box door of the test case 1 is opened, the LED driving power supply to be tested is placed in the supporting tray 206, and then the box door is closed to close and engage the heat preservation box 201, thereby completing the feeding process of the LED driving power supply to be tested.

[0094] In the high-temperature test stage, the fourth on-off electromagnetic valve 311 and the hot air return on-off electromagnetic valve 315 are opened by controlling the control panel 101, and a pair of hot air exhaust fans 313 are controlled to operate, so that the air in the ventilation inner box 202 is transported into the hot air storage tank 301 under the action of the hot air exhaust fans 313, the guide air pipe 307, and the second exhaust pipe 304, and is transported into the heating preservation box 207 through the hot air communication pipe 314, and the air in the heating preservation box 207 is heated by controlling the heating of the heating resistance wire 208. After heating, the hot air in the heating preservation box 207 is transported into the ventilation guide cavity through the heating exhaust pipe 209 and the air inlet diffuser pipe 204 by opening the heating electromagnetic on-off valve 210, and the hot air is transported into the ventilation inner box 202 through the ventilation guide cavity to heat the ventilation inner box 202. The temperature in the ventilation inner box 202 is monitored by the temperature sensor 203 during the heating process, so as to heat test the LED driving power supply.

[0095] After the temperature rising test is completed, the heating resistance wire 208 stops being powered, the second on-off electromagnetic valve 306, the heating electromagnetic on-off valve 210 and the hot air communication pipe 314 are controlled to be closed, and the first on-off electromagnetic valve 305 is opened, so that the hot air of the temperature sensor 203 can be extracted during the operation of the hot air extractor 313. The hot air is extracted and temporarily stored in a pair of hot air storage tanks 301, and meanwhile, the condenser pipe 212 is controlled to operate, the cooling electromagnetic on-off valve 214, the fourth on-off electromagnetic valve 311 and the cold return on-off electromagnetic valve 318 are opened, and the cold air extractor 316 is controlled to operate, so that the cold air in the cooling incubator 211 can be transported to the ventilation inner box 202 along the guide air pipe 307, the cold air storage tank 302 and the communication air pipe 312 under the action of the cold air extractor 316, the temperature in the ventilation inner box 202 is adjusted to the constant temperature test stage by the way of extracting hot air from the upper half of the ventilation inner box 202 and transporting cold air to the lower half of the ventilation inner box 202, so as to perform constant temperature test on the LED driving power supply.

[0096] In the low-temperature test stage, the first on-off electromagnetic valve 305 is controlled to be closed and the hot air extractor 313 is stopped to stop the state of extracting hot air from the ventilation inner box 202, and the temperature in the ventilation inner box 202 is adjusted to the low-temperature test stage by continuously transporting cold air into the ventilation inner box 202, so as to perform low-temperature test on the LED driving power supply.

[0097] In the high-low temperature alternating test stage, the ventilation inner box 202 is adjusted in temperature by the way of alternately extracting and transporting hot air by the hot air storage tank 301 and extracting and transporting cold air by the cold air storage tank 302, so as to perform high-low temperature alternating test on the LED driving power supply. After the test is completed, the box door of the test machine box 1 is opened to take out the LED driving power supply, and the high-low temperature test process of the LED driving power supply is completed.

[0098] It is apparent for those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to encompass all changes falling within the meaning and range of equivalents of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.

[0099] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. An LED driver power supply tester, characterized by, The utility model relates to a test case, high and low temperature test mechanism, fixedly assembled in the test case, the high and low temperature test mechanism includes the heat preservation box, the heat preservation box fixedly assembled in test case, the heat preservation box fixedly assembled with ventilation inner box, the ventilation inner box fixedly assembled with temperature sensor, the heat preservation box with ventilation inner box between cooperation forms ventilation flow guiding cavity, the top of heat preservation box fixedly assembled with heating control assembly, the lower of heat preservation box fixedly assembled with cooling control assembly, the ventilation flow guiding cavity is assembled with flow guiding limiting assembly, The flow guiding limiting assembly includes a pair of separation baffles, a pair of the separation baffles are symmetrically assembled on both sides of the ventilation flow guiding cavity, a pair of the separation baffles are fixedly connected with drive shafts, one end of a pair of the drive shafts outside the heat preservation box is fixedly connected with synchronous pulley, a pair of the synchronous pulley is sleeved with synchronous belt, the outside of heat preservation box is fixedly assembled with drive motor, the output shaft of drive motor is in transmission connection with drive shaft. The storage type ventilation mechanism is fixedly assembled on the outside of the heat preservation box, and the storage type ventilation mechanism stores hot air and cold air in the test space according to different test states, so that the mutual interference of the hot air and the cold air in the test space is reduced. The storage type ventilation mechanism includes a pair of hot air storage tanks and a pair of cold air storage tanks, the hot air storage tanks and the cold air storage tanks are arranged on both sides of the heat preservation box, a pair of the hot air storage tanks are arranged in cooperation with the heating control assembly, and a pair of the cold air storage tanks are arranged in cooperation with the cooling control assembly. The dust filtering and energy storing mechanism is fixedly assembled on the outside of the heat preservation box, and the dust filtering and energy storing mechanism includes a plurality of groups of dust filtering net cylinders, the plurality of groups of dust filtering net cylinders are rotatably assembled in the pair of hot air storage tanks and the pair of cold air storage tanks, and the dust filtering and energy storing mechanism is used for dust removal, dehumidification, heat preservation and recovery of the air flowing in the hot air storage tanks and the cold air storage tanks. One side of the test case is fixedly assembled with a control panel, a plurality of heat preservation partitions are fixedly connected in the test case, and the test case is divided into a heating and heat preservation chamber, a test chamber, a cooling and heat preservation chamber and an assembly chamber by the plurality of heat preservation partitions. Air inlet flow expansion pipes are fixedly connected to the upper and lower sides of the heat preservation box, the air inlet flow expansion pipes are communicated with the ventilation flow guiding cavity, a flow guiding fan wheel is rotatably assembled on one side of the ventilation flow guiding cavity, and a plurality of supporting plates are slidably assembled in the ventilation inner box.

2. The LED power supply test machine of claim 1, wherein, The heating control assembly includes a heating heat preservation box, the heating heat preservation box is fixedly assembled in the heat preservation partition, the heating heat preservation box is internally provided with a heating resistance wire, one side of the heating heat preservation box close to the heat preservation box is fixedly connected with a heating exhaust pipe, and the heating exhaust pipe and the air inlet flow expansion pipe are fixedly connected with a heating electromagnetic conduction valve.

3. The LED power supply test machine of claim 2, wherein, ​ 4. The LED power supply test machine of claim 3, wherein, ​ 5. The LED power supply test machine of claim 4, wherein, The temperature reduction control assembly comprises a cooling incubator fixedly assembled in the temperature reduction incubation chamber, a condenser pipe fixedly assembled in the cooling incubator, a temperature reduction exhaust pipe fixedly connected to one side of the cooling incubator close to the incubator body, and a temperature reduction electromagnetic conduction valve fixedly connected between the temperature reduction exhaust pipe and the air inlet expansion pipe.

6. The LED power supply test machine of claim 5, wherein, A pair of the hot air storage tanks are fixedly connected with the first and second air extraction pipes on one side of the incubator body, the first and second air extraction pipes are arranged on both sides of the partitioning baffle, the first air extraction pipe is fixedly connected with a first conduction electromagnetic valve on one side of the incubator body, the second air extraction pipe is fixedly connected with a second conduction electromagnetic valve on one side of the incubator body, and the first and second conduction electromagnetic valves are both in communication with the ventilation and flow guide cavity through a guide air pipe.

7. The LED power supply test machine of claim 6, wherein, A pair of the cold air storage tanks are fixedly connected with the third and fourth air extraction pipes on one side of the incubator body, the third and fourth air extraction pipes are arranged on both sides of the first conduction electromagnetic valve, the third air extraction pipe is fixedly connected with a third conduction electromagnetic valve on one side of the incubator body, the fourth air extraction pipe is fixedly connected with a fourth conduction electromagnetic valve on one side of the incubator body, and the third and fourth conduction electromagnetic valves are both in communication with the ventilation and flow guide cavity through a communication air pipe.

8. The LED power supply test machine of claim 7, wherein, The upper part of each of the pair of hot air storage tanks is fixedly assembled with a hot air extraction fan, the pair of hot air storage tanks are fixedly connected with a hot air communication pipe, the hot air communication pipe is in communication with the heating incubator, and a hot backflow conduction electromagnetic valve is fixedly assembled on the outer side of the hot air communication pipe, the lower part of each of the pair of cold air storage tanks is fixedly assembled with a cold air extraction fan, the pair of cold air storage tanks are fixedly connected with a cold air communication pipe, the cold air communication pipe is in communication with the cooling incubator, and a cold backflow conduction electromagnetic valve is fixedly assembled on the outer side of the cold air communication pipe.

9. A test method of an LED driving power source based on the LED driving power source tester according to any one of claims 1 to 8, characterized by, The method comprises the following steps: S1, when the high and low temperature test is performed on the LED driving power supply, the box door of the test case is opened, the LED driving power supply to be tested is placed in the supporting tray, and then the box door is closed to close and fasten the box door to the incubator body, thereby completing the feeding process of the LED driving power supply to be tested; S2, high temperature test stage, by controlling the panel control fourth on-off electromagnetic valve and hot backflow on-off electromagnetic valve open, and control a pair of hot air exhaust fan operation, so that the air in the ventilation inner box body under the action of hot air exhaust fan along the ventilation guide air cavity, guide air pipe and the second exhaust pipe under the action of delivery to the hot air storage tank, and along the hot air communication pipe to the heating incubator, by controlling the heating resistance wire heating way to the heating incubator in the air heating, heating is completed, by controlling the heating electromagnetic on-off valve open, so that the hot air in the heating incubator along the heating exhaust pipe, air diffuser pipe delivery to the ventilation guide cavity, hot air through the ventilation guide cavity to the ventilation inner box body, the temperature of the ventilation inner box body is monitored by temperature sensor, so as to the LED drive power supply for temperature test; S3, cooling constant temperature test stage, after the temperature test, the heating resistance wire stop power on, and control the second on-off electromagnetic valve, heating electromagnetic on-off valve and hot air communication pipe close, the first on-off electromagnetic valve open, so that the hot air exhaust fan in the process of running on the temperature sensor of hot air extraction, through a pair of hot air storage tank for hot air extraction temporary storage, at the same time, by controlling the condenser pipe operation, cooling electromagnetic on-off valve, fourth on-off electromagnetic valve and cold backflow on-off electromagnetic valve open, and control the cold air exhaust fan operation, so that the cooling incubator in the cold air under the action of cold air exhaust fan along the guide air pipe, cold air storage tank, and the communication pipe to the ventilation inner box body, by the hot air extraction to the upper half of the ventilation inner box body, the way of cold air delivery to the lower half of the ventilation inner box body, the temperature of the ventilation inner box body is adjusted to constant temperature test stage, so as to the LED drive power supply for constant temperature test; S4, low temperature test stage, by controlling the first on-off electromagnetic valve close, hot air exhaust fan stop running way, stop the hot air extraction to the ventilation inner box body, and by continuously to the ventilation inner box body in the cold air delivery way to adjust the temperature of the ventilation inner box body to low temperature test stage, so as to the LED drive power supply for low temperature test; S5, high and low temperature alternating test stage, in the process of high and low temperature alternating test, by hot air storage tank for hot air extraction, delivery, cold air storage tank for cold air extraction, delivery of each other in the way of temperature regulation to the ventilation inner box body, so as to the LED drive power supply for high and low temperature alternating test; S6, after the LED drive power supply test, open the door of the test machine box to take out the LED drive power supply, complete the LED drive power supply high and low temperature test process.

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