LED driving power supply testing machine and testing method

Abstract

The invention discloses an LED driving power supply testing machine and a testing method, and the LED driving power supply testing machine comprises a testing case, a high and low temperature testing mechanism, a storage type ventilation mechanism, and a dust filtration and energy storage mechanism. The high and low temperature testing mechanism comprises a heat preservation box body, a ventilation inner box body is fixedly assembled in the heat preservation box body, a temperature sensor is fixedly assembled in the ventilation inner box body, a heating control assembly is fixedly assembled above the heat preservation box body, and a cooling control assembly is fixedly assembled 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. By arranging the storage type ventilation mechanism, hot air and cold air in the test space can be subjected to storage type circulation according to different test states, so that the operation energy consumption in the high and low temperature test process of the LED driving power supply is reduced, and the temperature regulation efficiency and the energy-saving and environment-friendly properties of the high and low temperature test equipment for the LED driving power supply are remarkably improved.

Description

Technical Field

[0001] The invention belongs to the technical field of LED drive power supply testing, and in particular relates to an LED drive power supply testing machine and a testing method. Background Art

[0002] LED driver power supply is a power converter that converts power supply into a specific voltage and current to drive the LED to emit light. It mainly converts AC power into DC power through transformers and rectifiers. LED driver power supply tester is a type of mechanical equipment used to test the performance reliability and mechanical reliability of LED driver power supply. After the production and processing of LED driver power supply is completed, it is necessary to perform input and output voltage, current test, anti-interference test, load test and other performance reliability tests as well as mechanical reliability tests such as pressure resistance, high and low temperature resistance, etc.

[0003] At present, the common high and low temperature test process of LED driver power supply mainly includes several steps: high temperature test stage, cooling and constant temperature test stage, low temperature test stage and high and low temperature impact test stage. In this way, the LED driver power supply tester needs to go through the stages of heating, cooling and constant temperature, cooling and alternating heating and cooling when performing high and low temperature tests on the LED driver power supply.

[0004] The common high and low temperature test equipment for LED driver power supply in the prior art is mainly composed of a box, a ventilation system, a heating system, a cooling system and a control system. Among them, the heating system is generally composed of a heating wire and other accessories; the cooling system is composed of a condenser, an evaporator, a compressor, an expansion valve and other accessories. The heating system and the cooling system are connected to the test space through the ventilation system, and the temperature regulation purpose of the test space is achieved by conveying high-temperature gas or low-temperature gas to the test space through the ventilation system.

[0005] However, since the LED driver power supply needs to alternately heat up and cool down during high and low temperature tests, single ventilation will cause the heating system and the cooling system to interfere with each other, resulting in high energy consumption and poor temperature regulation efficiency of the LED driver power supply high and low temperature test equipment. At the same time, the mutual circulation of high-temperature gas and low-temperature gas will damage the mechanical components in the heating system and the cooling system, thereby shortening the service life of the LED driver power supply high and low temperature test equipment.

[0006] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0007] The object of the present invention is to provide an LED driving power supply testing machine and a testing method, which can improve the efficiency of temperature regulation and energy saving and environmental protection of high and low temperature testing of LED driving power supply.

[0008] In order to achieve the above purpose, the technical solution provided by a specific embodiment of the present invention is as follows:

[0009] An LED driving power supply tester comprises: a test box, a high and low temperature test mechanism, a storage ventilation mechanism, and a dust filtering and energy storage mechanism.

[0010] The high and low temperature testing mechanism is fixedly installed in the test box, and the high and low temperature testing mechanism includes an insulation box, which is fixedly installed in the test box, a ventilated inner box is fixedly installed in the insulation box, a temperature sensor is fixedly installed in the ventilated inner box, a ventilation guide cavity is formed between the insulation box and the ventilated inner box, a heating control component is fixedly installed on the top of the insulation box, a cooling control component is fixedly installed on the bottom of the insulation box, and a guide limit component is installed in the ventilation guide cavity.

[0011] The storage-type ventilation mechanism is fixedly mounted on the outside of the heat preservation box, and 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. The pair of hot air storage tanks are arranged in cooperation with a heating control component, and the pair of cold air storage tanks are arranged in cooperation with a cooling control component.

[0012] The dust filter energy storage mechanism is fixedly mounted on the outside of the heat preservation box, and includes a plurality of groups of dust filter net cylinders, which are rotatably mounted in a pair of hot air storage tanks and cold air storage tanks. The dust filter energy storage mechanism is used for dust removal, dehumidification and heat preservation recovery of the air guided by the hot air storage tank and the cold air storage tank.

[0013] In one or more embodiments of the present invention, a control panel is fixedly installed on one side of the test chassis. The test state of the test chassis is controlled by the control panel. Multiple groups of thermal insulation partitions are fixedly connected in the test chassis, and the multiple groups of thermal insulation partitions divide the test chassis into a heating and thermal insulation chamber, a test chamber, a cooling and thermal insulation chamber, and an assembly chamber. The heating component is assembled and thermally limited by the heating and thermal insulation chamber, the test chamber is used to assemble and limit the high and low temperature test mechanism and the storage ventilation mechanism, and the cooling and thermal insulation chamber is used to assemble and cool the condenser.

[0014] In one or more embodiments of the present invention, both upper and lower sides of the heat preservation box are fixedly connected with an air intake expansion pipe, and the air intake expansion pipe is connected with the ventilation guide cavity. It is convenient to transport hot air and cold air into the ventilation guide cavity through a pair of air intake expansion pipes. A guide wind wheel is rotatably installed on one side of the air intake expansion pipe located in the ventilation guide cavity. The hot air or cold air exported from the air intake expansion pipe is guided by the guide wind wheel rotating under the action of the air flow exported from the air intake expansion pipe, thereby improving the uniformity of the transportation of hot air and cold air. A number of supporting trays are slidably installed in the ventilation inner box. The LED driving power supply to be tested is supported by a number of supporting trays.

[0015] In one or more embodiments of the present invention, the heating control assembly includes a heating and insulation box, which is fixedly installed in the insulation partition. The heating and insulation box serves as an assembly limit and heating and insulation for the heating resistor. A heating resistor is installed in the heating and insulation box. The air in the heating and insulation box is heated by controlling the operation of the heating resistor. A heating exhaust pipe is fixedly connected to one side of the heating and insulation box close to the insulation box body. The hot air in the heating and insulation box is discharged through the heating exhaust pipe. A heating electromagnetic conduction valve is fixedly connected between the heating exhaust pipe and the intake diffuser. The opening and closing states of the heating exhaust pipe and the intake diffuser are controlled by the heating electromagnetic conduction valve.

[0016] In one or more embodiments of the present invention, the temperature reduction control component includes a cooling and heat preservation box, which is fixedly installed in the cooling and heat preservation chamber. The cooling and heat preservation box serves as an assembly limit and a temperature reduction and heat preservation function for the condenser. A condenser is fixedly installed in the cooling and heat preservation box. The air in the cooling and heat preservation box is cooled by the condenser. A cooling exhaust pipe is fixedly connected to one side of the cooling and heat preservation box close to the heat preservation box body. The cooling exhaust pipe guides the cold air in the cooling and heat preservation box. A cooling electromagnetic conduction valve is fixedly connected between the cooling exhaust pipe and the air intake expansion pipe. The conduction state of the cooling exhaust pipe and the air intake expansion pipe is controlled by the cooling electromagnetic conduction valve.

[0017] In one or more embodiments of the present invention, the flow guide limit assembly includes a pair of partition baffles, and the pair of partition baffles are symmetrically assembled on both sides of the ventilation guide cavity. The ventilation guide cavity is divided into an upper and lower part by controlling the rotation of the partition baffles, so as to facilitate the control of the extraction and delivery state of the hot air and cold air of the ventilation inner box. A driving shaft is fixedly connected to the inside of the pair of partition baffles. The driving shaft plays the role of assembly, fixing and rotation control of the partition baffle. A pair of driving shafts are fixedly connected to one end outside the heat preservation box. The driving shaft is driven to rotate by driving the synchronous belt wheel to rotate, so as to facilitate the control of the state of the partition baffle. A synchronous belt is set on the outer side of the pair of synchronous belt wheels. The synchronous belt plays the role of connecting a pair of synchronous belt wheels. A driving motor is fixedly assembled on the outer side of the heat preservation box, and the output shaft of the driving motor is connected to the driving shaft in a transmission manner. The driving motor plays the role of providing power, and the driving shaft is controlled to rotate by controlling the operation of the driving motor.

[0018] In one or more embodiments of the present invention, a pair of hot air storage tanks are fixedly connected to a first exhaust pipe and a second exhaust pipe on one side close to the heat preservation box, and the first exhaust pipe and the second exhaust pipe are arranged on both sides of the partition baffle. The ventilation guide cavity is connected to the hot air storage tank through the first exhaust pipe and the second exhaust pipe, so that the hot air storage tank can control the delivery and extraction state of the hot air in the ventilation inner box. A first conduction solenoid valve is fixedly connected to one side of the first exhaust pipe close to the heat preservation box. The conduction state of the first exhaust pipe is controlled by the first conduction solenoid valve. A second conduction solenoid valve is fixedly connected to one side of the second exhaust pipe close to the heat preservation box. The conduction state of the second exhaust pipe is controlled by the second conduction solenoid valve. The first conduction solenoid valve and the second conduction solenoid valve are both connected to the ventilation guide cavity with a guide air pipe. The hot air in the ventilation guide cavity is extracted and transported through the guide air pipe.

[0019] In one or more embodiments of the present invention, a pair of cold air storage tanks are fixedly connected to a third exhaust duct and a fourth exhaust duct on one side close to the heat preservation box, and the third exhaust duct and the fourth exhaust duct are arranged on both sides of the first conduction solenoid valve. The third exhaust duct and the fourth exhaust duct are used to control the delivery and extraction state of cold air in the ventilation guide cavity. The third conduction solenoid valve is fixedly connected to the side of the third exhaust duct close to the heat preservation box. The third conduction solenoid valve controls the conduction state of the third exhaust duct. The fourth conduction solenoid valve is fixedly connected to the side of the fourth exhaust duct close to the heat preservation box. The fourth conduction solenoid valve controls the conduction state of the fourth exhaust duct. The third conduction solenoid valve and the fourth conduction solenoid valve are both connected to the ventilation guide cavity by a connecting air pipe. The delivery and extraction state of cold air in the ventilation inner box is controlled by the connecting air pipe.

[0020] In one or more embodiments of the present invention, a pair of hot air storage tanks are fixedly equipped with a hot air exhaust fan above. The gas in the hot air storage tank is extracted by controlling the operation of the hot air exhaust fan. A hot air connecting pipe is fixedly connected between the pair of hot air storage tanks, and the hot air connecting pipe is connected to the heating and heat preservation box. The hot air connecting pipe serves to connect the hot air storage tank with the heating and heat preservation box, so that the air in the hot air storage tank is transported to the heating and heat preservation box along the hot air connecting pipe under the action of the hot air exhaust fan. A hot reflux conduction solenoid valve is fixedly installed on the outside of the hot air connecting pipe. The hot reflux conduction solenoid valve controls the conduction state of the hot air connecting pipe. A pair of cold air storage tanks are fixedly equipped with a cold air exhaust fan below. The air in the cold air storage tank is extracted by controlling the operation of the cold air exhaust fan. A cold air connecting pipe is fixedly connected between the pair of cold air storage tanks, and the cold air connecting pipe is connected to the cooling and heat preservation box. The cold air connecting pipe connects the cold air storage tank and the cooling and heat preservation box, so that the air in the cold air storage tank is transported to the cooling and heat preservation box along the cold air connecting pipe. A cold return flow conduction solenoid valve is fixedly installed on the outer side of the cold air connecting pipe. The cold return flow conduction solenoid valve controls the conduction state of the cold air connecting pipe.

[0021] A method for testing an LED driving power supply comprises the following steps:

[0022] S1. When performing high and low temperature tests on the LED driver power supply, open the door of the test box, place the LED driver power supply to be tested in the tray, and then close the box door so that the box door is sealed and buckled with the insulation box body, thereby completing the loading process of the LED driver power supply to be tested;

[0023] S2, high temperature test stage, the fourth conduction solenoid valve and the heat return conduction solenoid valve are controlled to open through the control panel, and a pair of hot air exhaust fans are controlled to run, so that the air in the ventilation inner box is transported to the hot air storage tank along the ventilation guide 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 and insulation box along the hot air connecting pipe, and the air in the heating and insulation box is heated by controlling the heating resistor wire in the heating and insulation box to be energized and heated. After the heating is completed, the heating electromagnetic conduction valve is controlled to open, so that the hot air in the heating and insulation box is transported to the ventilation guide cavity along the heating exhaust pipe and the air intake expansion pipe, and the hot air is transported to the ventilation inner box through the ventilation guide cavity, and the ventilation inner box is heated. During the heating process, the temperature in the ventilation inner box is monitored by the temperature sensor, so as to perform a temperature test on the LED driving power supply;

[0024] S3, cooling constant temperature test stage, after the temperature rise test is completed, the heating resistor wire stops being energized, and the second conduction solenoid valve, the heating solenoid conduction valve and the hot air connecting pipe are controlled to be closed, and the first conduction solenoid valve is opened, so that the hot air exhaust fan can extract the hot air in the temperature sensor during operation, and extract and temporarily store the hot air through a pair of hot air storage tanks. At the same time, the condenser tube can be controlled to operate, the cooling solenoid conduction valve, the fourth conduction solenoid valve and the cold return conduction solenoid valve can be opened, and the cold air exhaust fan can be controlled to operate, so that the cold air in the cooling and insulation box can be transported to the ventilation inner box along the guide air pipe, the cold air storage tank and the connecting air pipe under the action of the cold air exhaust fan, and the temperature in the ventilation inner box is adjusted to the constant temperature test stage by extracting hot air from the upper half of the ventilation inner box and transporting cold air to the lower half of the ventilation inner box, thereby performing a constant temperature test on the LED driving power supply;

[0025] S4, low temperature test stage, by controlling the first conduction solenoid valve to close and the hot air exhaust fan to stop running, the state of hot air extraction from the ventilation inner box is stopped, and the temperature inside the ventilation inner box is adjusted to the low temperature test stage by continuously delivering cold air into the ventilation inner box, so as to perform a low temperature test on the LED driver power supply;

[0026] S5, high and low temperature alternating test stage, during the high and low temperature alternating test, the temperature of the ventilation inner box can be adjusted by extracting and delivering hot air through the hot air storage tank, and extracting and delivering cold air through the cold air storage tank in an alternating manner, so as to perform high and low temperature alternating test on the LED driver power supply;

[0027] S6. After the LED driver power supply test is completed, the door of the test box is opened to take out the LED driver power supply, thereby completing the high and low temperature test process of the LED driver power supply.

[0028] Compared with the prior art, the present invention arranges a storage-type ventilation mechanism, which can perform storage-type circulation of hot air and cold air in the test space according to different test states, thereby greatly reducing the mutual interference of hot air and cold air in the test space, reducing the operating energy consumption during the high and low temperature testing of the LED driver power supply, greatly reducing the damage caused by high and low temperature gases to mechanical components in the heating system and the cooling system, extending the service life of the LED driver power supply high and low temperature testing equipment, and significantly improving the temperature regulation efficiency and energy saving and environmental protection of the LED driver power supply high and low temperature testing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a first front cross-sectional view of an LED driving power supply testing machine in one embodiment of the present invention;

[0031] Figure 2 for Figure 1 Schematic diagram of the structure at A in the middle;

[0032] Figure 3 A partial structural stereogram of an LED driving power supply testing machine in one embodiment of the present invention;

[0033] Figure 4 for Figure 3 Schematic diagram of the structure at B in the middle;

[0034] Figure 5 for Figure 3 Schematic diagram of the structure at C in the middle;

[0035] Figure 6 It is a three-dimensional diagram of another part of the structure of the LED driving power supply tester in one embodiment of the present invention;

[0036] Figure 7 for Figure 6 Schematic diagram of the structure at D in the middle;

[0037] Figure 8 A second front cross-sectional view of an LED driving power supply testing machine in one embodiment of the present invention;

[0038] Fig. 9 for Figure 8 Schematic diagram of the structure at E in the middle;

[0039] Fig.10 for Figure 8 Schematic diagram of the structure at F in the middle;

[0040] Fig.11 for Figure 8 Schematic diagram of the structure at G in the middle;

[0041] Fig.12 for Figure 8 Schematic diagram of the structure at H in the middle;

[0042] Fig.13 It is a three-dimensional diagram of an LED driving power supply testing machine in one embodiment of the present invention.

[0043] Description of main reference numerals:

[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 test mechanism, 201-insulation box, 202-ventilation inner box, 203-temperature sensor, 204-intake expansion pipe, 205-guide wind wheel, 206-support tray, 207-heating and insulation box, 2 08-heating resistance wire, 209-heating exhaust pipe, 210-heating electromagnetic conduction valve, 211-cooling insulation box, 212-condenser, 213-cooling exhaust pipe, 214-cooling electromagnetic conduction valve, 215-partition baffle, 216-driving shaft, 217-synchronous pulley, 218-synchronous belt, 219-driving motor, 3-storage ventilation mechanism, 301-hot air storage tank, 302-cold Air storage tank, 303-first exhaust pipe, 304-second exhaust pipe, 305-first conduction solenoid valve, 306-second conduction solenoid valve, 307-guiding air pipe, 308-third exhaust pipe, 309-fourth exhaust pipe, 310-third conduction solenoid valve, 311-fourth conduction solenoid valve, 312-connecting air pipe, 313-hot air exhaust fan, 314-hot air connecting pipe, 315-hot reflux guide Solenoid valve, 316-cold air exhaust fan, 317-cold air connecting pipe, 318-cold return flow conduction solenoid valve, 4-dust filter energy storage mechanism, 401-dust filter net cylinder, 402-assembly shaft, 403-driving pulley, 404-transmission belt, 405-rotating motor, 406-storage grid, 407-porous storage ball, 408-dehumidification energy storage core layer, 409-cleaning fixing plate, 410-dust cleaning brush. DETAILED DESCRIPTION

[0045] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, 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 should fall within the scope of protection of the present invention.

[0046] like Figures 1 to 13 As shown, an LED driving power supply tester in one embodiment of the present invention includes: a test chassis 1, a high and low temperature test mechanism 2, a storage ventilation mechanism 3, and a dust filtering 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 control panel 101 is used to control the test state of the test chassis 1.

[0048] like Figure 1 As shown, multiple groups of heat-insulating partitions 102 are fixedly connected in the test case 1, and the multiple groups of heat-insulating partitions 102 divide the test case 1 into a heating and heat-insulating chamber 103, a test chamber 104, a cooling and heat-insulating chamber 105, and an assembly chamber 106. The heating and heat-insulating chamber 103 is used to assemble and limit the heating components, the test chamber 104 is used to assemble and limit the high and low temperature test mechanism 2 and the storage ventilation mechanism 3, and the cooling and heat-insulating chamber 105 is used to assemble and cool the condenser 212.

[0049] like Figures 1 to 4 As shown, the high and low temperature test mechanism 2 is fixedly assembled in the test box 1, and the high and low temperature test mechanism 2 includes a heat preservation box 201, and the heat preservation box 201 is fixedly assembled in the test box 1. The heat preservation box 201 is used to perform assembly limit and heat preservation treatment on the ventilation inner box 202.

[0050] like Figures 1 to 4 As shown, a ventilated inner box 202 is fixedly mounted in the heat preservation box 201. The ventilated inner box 202 supports and limits the support tray 206. At the same time, the ventilated inner box 202 can be used to conduct heat to the air in the ventilation and diversion cavity.

[0051] Specifically, a ventilation guide cavity is formed between the heat preservation box 201 and the ventilated inner box 202. The ventilation guide cavity is provided to assist in heat preservation of the ventilated inner box 202. At the same time, the hot air or cold air can be guided through the ventilation guide cavity, so that the ventilated inner box 202 can be evenly heated or cooled.

[0052] like Figure 1 to Figure 2 As shown, a temperature sensor 203 is fixedly installed in the ventilation inner box 202. It is convenient to monitor the temperature in the ventilation inner box 202 in real time through the temperature sensor 203.

[0053] like Figure 1 to Figure 2 As shown, both upper and lower sides of the heat preservation box 201 are fixedly connected with air intake expansion pipes 204, and the air intake expansion pipes 204 are connected with the ventilation and guiding cavity, so as to facilitate the delivery of hot air and cold air into the ventilation and guiding cavity through a pair of air intake expansion pipes 204.

[0054] like Figure 1 to Figure 2 As shown, a guide wheel 205 is rotatably mounted on one side of the air intake expansion pipe 204 located in the ventilation guide cavity. The guide wheel 205 rotates under the action of the air flow exported from the air intake expansion pipe 204 to guide the hot air or cold air exported from the air intake expansion pipe 204, thereby improving the uniformity of hot air and cold air delivery.

[0055] like Figure 3 to Figure 4As shown, a plurality of trays 206 are slidably mounted in the ventilated inner box 202. The plurality of trays 206 are used to carry the LED driving power supply to be tested.

[0056] like Figures 1 to 3 As shown, a heating control assembly is fixedly mounted on the top of the insulation box 201, and the heating control assembly includes a heating insulation box 207, and the heating insulation box 207 is fixedly mounted in the insulation partition 102. The heating insulation box 207 plays the role of assembly limit and heating and heat preservation for the heating resistance wire 208.

[0057] like Figures 1 to 3 As shown, a heating resistor 208 is installed in the heating and heat preservation box 207. The air in the heating and heat preservation box 207 is heated by controlling the operation of the heating resistor 208.

[0058] like Figure 1 to Figure 2 As shown, a heating exhaust pipe 209 is fixedly connected to one side of the heating and heat preservation box 207 close to the heat preservation box body 201. The hot air in the heating and heat preservation box 207 is discharged through the heating exhaust pipe 209.

[0059] like Figure 1 to Figure 2 As shown, a heating electromagnetic conduction valve 210 is fixedly connected between the heating exhaust pipe 209 and the intake diffuser pipe 204. The heating electromagnetic conduction valve 210 controls the opening and closing states of the heating exhaust pipe 209 and the intake diffuser pipe 204.

[0060] like Figures 1 to 3 As shown, a cooling control assembly is fixedly installed below the insulation box 201, and the cooling control assembly includes a cooling insulation box 211, and the cooling insulation box 211 is fixedly installed in the cooling insulation chamber 105. The cooling insulation box 211 plays the role of assembly limit and cooling and heat preservation for the condenser 212.

[0061] like Figures 1 to 3 As shown, a condenser 212 is fixedly installed in the cooling and heat preservation box 211. The condenser 212 cools the air in the cooling and heat preservation box 211.

[0062] Specifically, the assembly chamber 106 is equipped with a compressor, an evaporator and a four-way valve, so as to provide low-temperature refrigerant to the condenser 212, thereby facilitating cooling of the air in the cooling and insulation box 211.

[0063] like Figure 1 As shown, a cooling exhaust pipe 213 is fixedly connected to one side of the cooling and heat preservation box 211 close to the heat preservation box body 201. The cooling exhaust pipe 213 guides the cold air in the cooling and heat preservation box 211 out.

[0064] like Figure 1As shown, a cooling electromagnetic conduction valve 214 is fixedly connected between the cooling exhaust pipe 213 and the intake diffuser pipe 204. The conduction state between the cooling exhaust pipe 213 and the intake diffuser pipe 204 is controlled by the cooling electromagnetic conduction valve 214.

[0065] like Figure 3 to Figure 4 As shown, a guide limiter assembly is installed in the ventilation guide cavity. The guide limiter assembly includes a pair of partition baffles 215, and the pair of partition baffles 215 are symmetrically installed on both sides of the ventilation guide cavity. The ventilation guide cavity is divided into two parts, the upper and lower parts, by controlling the rotation of the partition baffles 215, so as to facilitate the control of the extraction and delivery state of the hot air and the cold air of the ventilation inner box 202.

[0066] like Figure 3 to Figure 4 As shown, a pair of partition baffles 215 are both fixedly connected with a driving shaft 216. The driving shaft 216 plays the role of assembling, fixing and rotating control for the partition baffles 215.

[0067] like Figure 6 to Figure 7 As shown, one end of a pair of driving shafts 216 located outside the heat preservation box 201 is fixedly connected to a synchronous pulley 217. The driving shaft 216 is driven to rotate by driving the synchronous pulley 217 to rotate, so as to facilitate the control of the state of the partition baffle 215.

[0068] like Figure 6 to Figure 7 As shown, a pair of synchronous pulleys 217 are sleeved with a synchronous belt 218 on their outer sides. The synchronous belt 218 serves to connect the pair of synchronous pulleys 217.

[0069] like Figure 6 to Figure 7 As shown, a drive motor 219 is fixedly mounted on the outer side of the heat preservation box 201, and the output shaft of the drive motor 219 is transmission-connected with the drive shaft 216. The drive motor 219 provides power, and the drive shaft 216 is rotationally controlled by controlling the operation of the drive motor 219.

[0070] like Figure 3As shown, the storage ventilation mechanism 3 is fixedly assembled on the outside of the heat preservation box 201. The storage ventilation mechanism 3 performs storage ventilation on the ventilated inner box 202. The storage ventilation mechanism 3 includes a pair of hot air storage tanks 301 and a pair of cold air storage tanks 302, which are arranged on both sides of the heat preservation box 201. The pair of hot air storage tanks 301 are arranged in cooperation with the heating control component. The hot air in the ventilated inner box 202 is ventilated in storage mode by the hot air storage tank 301, which reduces the heating energy consumption of the heating resistor 208. The pair of cold air storage tanks 302 are arranged in cooperation with the cooling control component. The cold air in the ventilated inner box 202 is ventilated in storage mode by the cold air storage tank 302, which reduces the cooling energy consumption of the condenser 212. The energy consumption of temperature regulation of the LED driving power supply test equipment is reduced.

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

[0072] like Figures 8 to 10 As shown, a first conduction electromagnetic valve 305 is fixedly connected to one side of the first exhaust pipe 303 close to the heat preservation box 201. The conduction state of the first exhaust pipe 303 is controlled by the first conduction electromagnetic valve 305.

[0073] like Figures 8 to 10 As shown, a second conduction electromagnetic valve 306 is fixedly connected to one side of the second exhaust pipe 304 close to the heat preservation box 201. The conduction state of the second exhaust pipe 304 is controlled by the second conduction electromagnetic valve 306.

[0074] like Figures 8 to 10 As shown, the first conduction electromagnetic valve 305 and the second conduction electromagnetic valve 306 are connected to the ventilation and diversion cavity through a guide air pipe 307. The hot air in the ventilation and diversion cavity is extracted and transported through the guide air pipe 307.

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

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

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

[0078] like Figures 8 to 12 As shown, the third conduction electromagnetic valve 310 and the fourth conduction electromagnetic valve 311 are connected to the ventilation and diversion cavity through a connecting air pipe 312. The delivery and extraction state of the cold air in the ventilation inner box 202 is controlled through the connecting air pipe 312.

[0079] like Figures 8 to 10 As shown, a pair of hot air storage tanks 301 are both fixedly equipped with hot air exhaust fans 313. The operation of the hot air exhaust fans 313 is controlled to extract the gas in the hot air storage tanks 301.

[0080] like Figures 8 to 10 As shown, a hot air connecting pipe 314 is fixedly connected between the pair of hot air storage tanks 301, and the hot air connecting pipe 314 is in communication with the heating and heat preservation box 207. The hot air connecting pipe 314 serves to connect the hot air storage tank 301 with the heating and heat preservation box 207, so that the air in the hot air storage tank 301 is transported to the heating and heat preservation box 207 along the hot air connecting pipe 314 under the action of the hot air exhaust fan 313.

[0081] like Figures 8 to 10 As shown, a heat reflux conduction electromagnetic valve 315 is fixedly mounted on the outer side of the hot air communication pipe 314. The heat reflux conduction electromagnetic valve 315 controls the conduction state of the hot air communication pipe 314.

[0082] like Figures 8 to 12 As shown, a pair of cold air storage tanks 302 are fixedly provided with cold air exhaust fans 316 below. The air in the cold air storage tanks 302 is extracted by controlling the operation of the cold air exhaust fans 316.

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

[0084] like Figures 8 to 12 As shown, a cold return flow conduction electromagnetic valve 318 is fixedly mounted on the outer side of the cold air communication pipe 317. The cold return flow conduction electromagnetic valve 318 controls the conduction state of the cold air communication pipe 317.

[0085] like Figures 8 to 10 As shown, the dust filter energy storage mechanism 4 is fixedly mounted on the outside of the heat preservation box 201. The dust filter energy storage mechanism 4 is used to remove dust, dehumidify and heat the air guided by the hot air storage tank 301 and the cold air storage tank 302.

[0086] like Figures 8 to 10 As shown, the dust filter energy storage mechanism 4 includes multiple groups of dust filter net cylinders 401, which are rotatably assembled in a pair of hot air storage tanks 301 and cold air storage tanks 302. The dust filter net cylinders 401 filter the air transported to the hot air storage tanks 301 and the cold air storage tanks 302, thereby reducing the pollution and interference of the dust-containing air on the heating resistor 208 and the condenser 212.

[0087] like Figures 8 to 9 As shown, one side of the plurality of dust filter screen cylinders 401 is fixedly connected with an assembly shaft 402. The assembly shaft 402 plays the role of assembly fixing and rotation driving for the dust filter screen cylinder 401, and the dust filter screen cylinder 401 is driven to rotate by controlling the rotation of the assembly shaft 402, thereby efficiently filtering dust and guiding the air in the hot air storage tank 301 and the cold air storage tank 302.

[0088] like Figures 3 to 5 As shown, one end of the assembly shaft 402 located outside the hot air storage tank 301 or the cold air storage tank 302 is fixedly connected to a driving pulley 403. The driving pulley 403 plays a role of rotationally driving the transmission belt 404. The outer sides of the pair of driving pulleys 403 are sleeved with a transmission belt 404. The transmission belt 404 plays a role of connecting the pair of driving pulleys 403, so that the pair of assembly shafts 402 can rotate synchronously under the action of the driving pulley 403 and the transmission belt 404.

[0089] like Figures 3 to 5 As shown, one end of the transmission belt 404 away from the driving pulley 403 is connected to the rotating motor 405. The rotating motor 405 provides power, and the single assembly shaft 402 is driven to rotate by controlling the operation of the rotating motor 405.

[0090] like Figures 8 to 10 As shown, multiple groups of dust filter net cylinders 401 are fixedly connected to multiple groups of evenly distributed storage racks 406. The storage racks 406 play a role in storing the porous storage balls 407.

[0091] like Figures 8 to 10 As shown, multiple groups of storage grids 406 are filled with porous storage balls 407. The dehumidification energy storage core layer 408 is stored and limited by the porous storage balls 407. At the same time, the porous storage balls 407 play a role in assisting the dust filter cylinder 401 in dust filtration. The porous storage balls 407 are filled with a dehumidification energy storage core layer 408. The gas after dust filtration by the dust filter cylinder 401 is dehumidified by the dehumidification energy storage core layer 408. At the same time, the hot air or cold air transported can be heat exchanged by the dehumidification energy storage core layer 408, thereby storing energy for the hot air or cold air, thereby improving the energy-saving and environmental protection of the temperature control of the ventilation inner box 202.

[0092] like Figures 8 to 10 As shown, a cleaning fixing plate 409 is fixedly mounted on one side of the plurality of dust filter net cylinders 401. The cleaning fixing plate 409 plays a role in assembling and fixing the dust cleaning brush 410. A dust cleaning brush 410 is fixedly mounted on one side of the cleaning fixing plate 409, and the dust cleaning brush 410 is arranged in cooperation with the dust filter net cylinder 401. The impurities adhering to the outer surface of the dust filter net cylinder 401 are cleaned by the interaction between the dust cleaning brush 410 and the dust filter net cylinder 401, thereby improving the dust filtering efficiency of the dust filter net cylinder 401.

[0093] During specific use, the testing method of the LED driver power supply is as follows: when performing high and low temperature tests on the LED driver power supply, open the door of the test box 1, place the LED driver power supply to be tested in the supporting tray 206, and then close the door so that the door is sealed and fastened to the insulation box body 201, thereby completing the loading process of the LED driver power supply to be tested.

[0094] During the high temperature test stage, the fourth conduction solenoid valve 311 and the heat reflux conduction solenoid valve 315 are controlled to open through the control panel 101, and a pair of hot air exhaust fans 313 are controlled to run, so that the air in the ventilation inner box 202 is transported to the hot air storage tank 301 along the ventilation guide cavity, the guide air pipe 307 and the second exhaust pipe 304 under the action of the hot air exhaust fan 313, and is transported to the heating and insulation box 207 along the hot air connecting pipe 314, and the air in the heating and insulation box 207 is heated by controlling the heating resistor 208 in the heating and insulation box 207 to energize and generate heat. After the heating is completed, the heating electromagnetic conduction valve 210 is controlled to open, so that the hot air in the heating and insulation box 207 is transported to the ventilation guide cavity along the heating exhaust pipe 209 and the air intake expansion pipe 204, and the hot air is transported to the ventilation inner box 202 through the ventilation guide cavity, and the ventilation inner box 202 is heated. During the heating process, the temperature in the ventilation inner box 202 is monitored by the temperature sensor 203, so as to perform a temperature heating test on the LED driving power supply.

[0095] During the cooling and constant temperature test phase, after the temperature rise test is completed, the heating resistor 208 stops being energized, and controls the second conduction solenoid valve 306, the heating solenoid conduction valve 210 and the hot air connecting pipe 314 to be closed, and the first conduction solenoid valve 305 is opened, so that the hot air exhaust fan 313 can extract the hot air in the temperature sensor 203 during operation. The hot air is extracted and temporarily stored through a pair of hot air storage tanks 301. At the same time, the operation of the condenser 212 can be controlled to open the cooling electromagnetic conduction valve 214, the fourth conduction electromagnetic valve 311 and the cold return conduction electromagnetic valve 318, and the cold air exhaust fan 316 can be controlled to operate, so that the cold air in the cooling and insulation box 211 can be transported to the ventilated inner box 202 along the guide air pipe 307, the cold air storage tank 302, and the connecting air pipe 312 under the action of the cold air exhaust fan 316. The temperature in the ventilated inner box 202 is adjusted to the constant temperature test stage by extracting hot air from the upper half of the ventilated inner box 202 and transporting cold air to the lower half of the ventilated inner box 202, thereby performing a constant temperature test on the LED driving power supply.

[0096] During the low-temperature test stage, the hot air extraction from the ventilated inner box 202 is stopped by controlling the first conduction solenoid valve 305 to be closed and the hot air exhaust fan 313 to stop running, and the temperature inside the ventilated inner box 202 is adjusted to the low-temperature test stage by continuously supplying cold air into the ventilated inner box 202, thereby performing a low-temperature test on the LED driving power supply.

[0097] During the high and low temperature alternating test, the hot air storage tank 301 can be used to extract and deliver hot air, and the cold air storage tank 302 can be used to extract and deliver cold air in an alternating manner to adjust the temperature of the ventilated inner box 202, thereby performing a high and low temperature alternating test on the LED driver power supply. After the test is completed, the door of the test box 1 is opened to take out the LED driver power supply, completing the high and low temperature test process of the LED driver power supply.

[0098] 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.

[0099] 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 LED drive power supply tester, characterized in that: include: Test chassis; A high and low temperature testing mechanism is fixedly installed in the test box, and the high and low temperature testing mechanism includes a heat preservation box, and the heat preservation box is fixedly installed in the test box, and a ventilated inner box is fixedly installed in the heat preservation box, and a temperature sensor is fixedly installed in the ventilated inner box, and a ventilation guide cavity is formed between the heat preservation box and the ventilated inner box, and a heating control component is fixedly installed on the upper part of the heat preservation box, and a cooling control component is fixedly installed on the lower part of the heat preservation box, and a guide limit component is installed in the ventilation guide cavity; A storage ventilation mechanism is fixedly mounted on the outside of the heat preservation box, and the storage ventilation mechanism includes a pair of hot air storage tanks and a pair of cold air storage tanks, which are arranged on both sides of the heat preservation box, a pair of hot air storage tanks are arranged in cooperation with a heating control component, and a pair of cold air storage tanks are arranged in cooperation with a cooling control component; The dust filter energy storage mechanism is fixedly mounted on the outside of the thermal insulation box, and the dust filter energy storage mechanism includes multiple groups of dust filter net cylinders. The multiple groups of dust filter net cylinders are rotatably mounted in a pair of hot air storage tanks and cold air storage tanks. The dust filter energy storage mechanism is used for dust removal, dehumidification and thermal insulation recovery of the air guided by the hot air storage tank and the cold air storage tank.

2. The LED driving power supply tester according to claim 1, characterized in that: A control panel is fixedly installed on one side of the test chassis, and multiple groups of thermal insulation partitions are fixedly connected inside the test chassis. The multiple groups of thermal insulation partitions divide the test chassis into a heating and thermal insulation chamber, a test chamber, a cooling and thermal insulation chamber, and an assembly chamber.

3. The LED driving power supply tester according to claim 2, characterized in that: The upper and lower sides of the thermal insulation box are fixedly connected with an air intake expansion pipe, the air intake expansion pipe is communicated with the ventilation guide cavity, one side of the air intake expansion pipe located in the ventilation guide cavity is rotatably equipped with a guide wind wheel, and a plurality of supporting trays are slidably equipped in the ventilation inner box.

4. The LED driving power supply tester according to claim 3, characterized in that: The heating control component includes a heating and insulation box, which is fixedly installed in an insulation partition. A heating resistance wire is installed in the heating and insulation box. A heating exhaust pipe is fixedly connected to the side of the heating and insulation box close to the insulation box body. A heating electromagnetic conduction valve is fixedly connected between the heating exhaust pipe and the air intake expansion pipe.

5. The LED driving power supply tester according to claim 4, characterized in that: The temperature reduction control component includes a cooling and heat preservation box, which is fixedly installed in the cooling and heat preservation chamber. A condenser is fixedly installed in the cooling and heat preservation box. A cooling exhaust pipe is fixedly connected to one side of the cooling and heat preservation box close to the heat preservation box body. A cooling electromagnetic conduction valve is fixedly connected between the cooling exhaust pipe and the air intake expansion pipe.

6. The LED driving power supply tester according to claim 5, characterized in that: The guide and limit assembly includes a pair of partition baffles, which are symmetrically assembled on both sides of the ventilation and guide cavity, and a pair of partition baffles are fixedly connected with a driving shaft, and a pair of driving shafts are fixedly connected with a synchronous pulley at one end outside the insulation box body, and a synchronous belt is sleeved on the outer side of the pair of synchronous pulleys, and a driving motor is fixedly assembled on the outer side of the insulation box body, and the output shaft of the driving motor is drivingly connected to the driving shaft.

7. The LED driving power supply tester according to claim 6, characterized in that: A pair of hot air storage tanks are fixedly connected with a first exhaust duct and a second exhaust duct on one side close to the heat preservation box body, and the first exhaust duct and the second exhaust duct are arranged on both sides of the partition baffle. The first exhaust duct is fixedly connected with a first conduction solenoid valve on one side close to the heat preservation box body, and the second exhaust duct is fixedly connected with a second conduction solenoid valve on one side close to the heat preservation box body. The first conduction solenoid valve and the second conduction solenoid valve are both connected to the ventilation diversion cavity through a guide air duct.

8. The LED driving power supply tester according to claim 6, characterized in that: A pair of cold air storage tanks are fixedly connected to a third exhaust duct and a fourth exhaust duct on one side close to the heat preservation box body, and the third exhaust duct and the fourth exhaust duct are arranged on both sides of the first conduction solenoid valve. The third exhaust duct is fixedly connected to the third conduction solenoid valve on one side close to the heat preservation box body, and the fourth exhaust duct is fixedly connected to the fourth conduction solenoid valve on one side close to the heat preservation box body. The third conduction solenoid valve and the fourth conduction solenoid valve are both connected to the ventilation diversion cavity via connecting air pipes.

9. The LED driving power supply tester according to claim 8, characterized in that: A hot air exhaust fan is fixedly installed on the top of a pair of hot air storage tanks, a hot air connecting pipe is fixedly connected between the pair of hot air storage tanks, the hot air connecting pipe is communicated with the heating and insulation box, and a hot reflux conduction solenoid valve is fixedly installed on the outer side of the hot air connecting pipe. A cold air exhaust fan is fixedly installed on the bottom of a pair of cold air storage tanks, a cold air connecting pipe is fixedly connected between the pair of cold air storage tanks, the cold air connecting pipe is communicated with the cooling and insulation box, and a cold reflux conduction solenoid valve is fixedly installed on the outer side of the cold air connecting pipe.

10. A method for testing an LED driving power supply, characterized in that: The following steps are involved: S1. When performing high and low temperature tests on the LED driver power supply, open the door of the test box, place the LED driver power supply to be tested in the tray, and then close the box door so that the box door is sealed and buckled with the insulation box body, thereby completing the loading process of the LED driver power supply to be tested; S2, high temperature test stage, the fourth conduction solenoid valve and the heat return conduction solenoid valve are controlled to open through the control panel, and a pair of hot air exhaust fans are controlled to run, so that the air in the ventilation inner box is transported to the hot air storage tank along the ventilation guide 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 and insulation box along the hot air connecting pipe, and the air in the heating and insulation box is heated by controlling the heating resistor wire in the heating and insulation box to be energized and heated. After the heating is completed, the heating electromagnetic conduction valve is controlled to open, so that the hot air in the heating and insulation box is transported to the ventilation guide cavity along the heating exhaust pipe and the air intake expansion pipe, and the hot air is transported to the ventilation inner box through the ventilation guide cavity, and the ventilation inner box is heated. During the heating process, the temperature in the ventilation inner box is monitored by the temperature sensor, so as to perform a temperature test on the LED driving power supply; S3, cooling constant temperature test stage, after the temperature rise test is completed, the heating resistor wire stops being energized, and the second conduction solenoid valve, the heating solenoid conduction valve and the hot air connecting pipe are controlled to be closed, and the first conduction solenoid valve is opened, so that the hot air exhaust fan can extract the hot air in the temperature sensor during operation, and extract and temporarily store the hot air through a pair of hot air storage tanks. At the same time, the condenser tube can be controlled to operate, the cooling solenoid conduction valve, the fourth conduction solenoid valve and the cold return conduction solenoid valve can be opened, and the cold air exhaust fan can be controlled to operate, so that the cold air in the cooling and insulation box can be transported to the ventilation inner box along the guide air pipe, the cold air storage tank and the connecting air pipe under the action of the cold air exhaust fan, and the temperature in the ventilation inner box is adjusted to the constant temperature test stage by extracting hot air from the upper half of the ventilation inner box and transporting cold air to the lower half of the ventilation inner box, thereby performing a constant temperature test on the LED driving power supply; S4, low temperature test stage, by controlling the first conduction solenoid valve to close and the hot air exhaust fan to stop running, the state of hot air extraction from the ventilation inner box is stopped, and the temperature inside the ventilation inner box is adjusted to the low temperature test stage by continuously delivering cold air into the ventilation inner box, so as to perform a low temperature test on the LED driver power supply; S5, high and low temperature alternating test stage, during the high and low temperature alternating test, the temperature of the ventilation inner box can be adjusted by extracting and delivering hot air through the hot air storage tank, and extracting and delivering cold air through the cold air storage tank in an alternating manner, so as to perform high and low temperature alternating test on the LED driver power supply; S6. After the LED driver power supply test is completed, the door of the test box is opened to take out the LED driver power supply, thereby completing the high and low temperature test process of the LED driver power supply.

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