A walk-in motor load test humidity chamber for high humidity test environments

Abstract

The present invention discloses a walk-in motor load test humidity chamber for high-humidity test environments, specifically relating to the technical field of motor type testing. The chamber comprises a cabinet and a test chamber fixed to the top of the cabinet. The bottom of the test chamber is open, and the bottom space is a test chamber. The top space of the test chamber is divided by a partition into a first chamber and a second chamber distributed on the left and right. The first chamber is located at the top of the test chamber and communicates with the test chamber. A heater is fixed to the rear wall of the first chamber. A water tank and a water pump are fixed to the top of the test chamber, with the water tank being located on one side of the water pump. Two humidification pipes distributed front and back are fixed to the top of the first chamber. An adjustment mechanism is provided through the first and second cavities. A heat storage mechanism is provided at the top of the test chamber, and a conveying mechanism is provided at the top of the cabinet. The present invention is suitable for batch testing of test motors, and has low heat and moisture loss, which is beneficial for reducing energy consumption.

Description

Technical Field

[0001] The present invention relates to the technical field of motor type testing, and more particularly to a walk-in motor load test humidity and heat box for a high-humidity test environment. Background Art

[0002] After the motor design is complete, it must undergo a load test in accordance with the relevant type test standards. Type testing comprehensively assesses and predicts whether the motor's characteristics and parameters meet the standard requirements, based on the product's technical specifications and actual operating conditions. Load testing simulates the motor's actual operating conditions by controlling parameters such as voltage, current, and speed. It detects the heating (temperature rise) of the windings at rated output power and torque, verifying the accuracy and rationality of the motor's design and manufacturing parameters.

[0003] Chinese Patent Publication No. CN102928780B: Walk-in Motor Load Test Humidity Chamber, discloses a walk-in motor load test humidity chamber capable of providing a high-temperature, high-humidity test environment for testing motors. The chamber comprises an outer cover placed on a test platform, the outer cover enclosing the load test device's connection device, the test motor, and the cooling fan within a cavity of the outer cover. The cavity of the outer cover is divided by a partition into a vertical heat recovery chamber housing the connection device, a test chamber adjacent to the vertical heat recovery chamber housing the test motor and the cooling fan, a mixed gas chamber adjacent to the test chamber, and a horizontal heat recovery chamber located above the vertical heat recovery chamber, the test chamber, and the mixed gas chamber. The walk-in motor load test humidity chamber provides a humidity and heat environment consistent with the actual operating environment of traction motors, providing reliable test data on the temperature rise of traction motor windings, the assembly of various components, and the lubrication and operation of bearings in this humidity and heat environment.

[0004] The above patent has the following disadvantages: it is not conducive to batch testing of test motors, heat and moisture loss in the hot and humid box is large when the test motor is replaced, and reheating and humidification are required when testing the next test motor, resulting in high energy consumption. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a walk-in motor load test heat and humidity chamber for a high humidity test environment, which is convenient for batch testing of test motors, and has low heat and moisture loss, which is conducive to reducing energy consumption.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a walk-in motor load test hot and humid chamber for a high-humidity test environment, comprising a cabinet and a test box body fixed to the top of the cabinet by a support, the bottom of the test box body being open and the bottom space being a test chamber, the top space of the test box body being divided by a partition into a first chamber and a second chamber distributed on the left and right, the first chamber being arranged at the top of the test chamber and communicating with the test chamber, a heater being fixedly provided on the rear wall inside the first chamber, a water tank and a water pump being fixedly provided at the top of the test chamber body, the water tank being arranged on one side of the water pump, and the water inlet end of the water pump being connected to the water tank through a pipe, and an electric valve being fixedly provided on the pipe, two humidifying pipes distributed front and back being fixedly provided at the top of the first chamber body, the two humidifying pipes being connected through a water pipe, a plurality of atomizing nozzles being fixedly provided at the bottom ends of the two humidifying pipes, the water outlet end of the water pump passing through the top of the test chamber body and the top end of one of the humidifying pipes being connected to the inside of the humidifying pipe, a load motor being fixedly provided at the top of the cabinet, and the load motor being arranged on one side of the bottom of the test chamber body.

[0007] Preferably, an adjustment mechanism is provided throughout the first cavity and the second cavity, and the adjustment mechanism is provided between the atomizing nozzle and the heater. The adjustment mechanism includes a drive motor fixedly provided on one side of the cabinet, and a rotating rod is fixedly provided at the output end of the drive motor. The rotating rod passes through the first cavity and the second cavity and extends out of both sides of the test box, and the rotating rod is connected to the test box through a sealed bearing. A fan blade is fixedly provided at the outer end of the rotating rod, and the fan blade is provided inside the second cavity. Two cylinders are provided on the outside of the rotating rod, and the cylinder is provided on the side of the fan blade away from the drive motor, and the two cylinders are respectively fixed on the test box. On the other side and on the inner wall of the second cavity, the two cylinders are connected to the interior of the first cavity, and the inner walls of the two cylinders are integrally formed with fixed plates. The two fixed plates are both mounted on the outer ends of the rotating rods and are connected to the rotating rods through sealed bearings. There are rotating plates inside the two cylinders, and the rotating plates are arranged on the outside of the fixed plates. The two rotating plates are respectively fixedly connected to the outer end of the rotating rod and the end of the rotating rod away from the driving motor. A plurality of first ventilation holes are provided on the fixed plate, and a plurality of second ventilation holes are provided on the rotating plate. The first ventilation holes and the second ventilation holes are staggered, and the adjustment mechanism is used to quickly adjust the temperature in the test chamber.

[0008] Preferably, a sealing gasket is fixedly provided on one side of the fixed plate close to the rotating plate, and the sealing gasket is in contact with the side of the rotating plate close to the fixed plate. A through hole communicating with the first ventilation hole is opened on the sealing gasket to maintain the sealing of the cylinder.

[0009] Preferably, a heat storage mechanism is provided at the top of the test box, and the heat storage mechanism is provided on the other side of the water pump. The heat storage mechanism includes an insulating box, and the insulating box is provided on the other side of the water pump. A connecting pipe is fixedly provided at the bottom of the insulating box, and the connecting pipe is provided at the top of the test box. The insulating box, the connecting pipe, and the first cavity are connected, and the connecting pipe is provided between the two humidification pipes. An electric valve is fixed on the connecting pipe, and a heat-conducting water storage tank is fixed inside the insulating box. The heat storage mechanism is used to recover the heat of the hot gas in the second cavity.

[0010] Preferably, a plurality of thermal insulation cross plates distributed up and down are fixedly provided on the inner wall of the thermal insulation box body, and the plurality of thermal insulation cross plates are fixedly provided on the outer end of the thermal conduction water storage tank. The water inlet end of the water pump is connected with the thermal conduction water storage tank through a pipe, and an electric valve is fixedly provided on the pipe. The thermal insulation cross plates of odd rows counted from top to bottom are provided with a first opening penetrating the thermal insulation cross plates on the side away from the water pump, and the thermal insulation cross plates of even rows counted from top to bottom are provided with a first opening penetrating the thermal insulation cross plates on the side close to the water pump. A pipe is fixedly provided between the top rear side of the thermal insulation box body and the rear end of the cabinet, and the pipe is used to connect the thermal insulation box body and the second cavity. One end of the pipe close to the thermal insulation cross plate is provided above the thermal insulation cross plate, and a one-way valve is fixedly provided on the pipe. An air outlet pipe is fixedly provided on the bottom of the side of the thermal insulation box body away from the water pump, and the air outlet pipe is provided below the thermal insulation cross plate, and a one-way valve is fixedly provided on the air outlet pipe, which extends the movement path of the hot air, increases the heat exchange time, and is conducive to improving the heat exchange effect.

[0011] Preferably, a conveying mechanism is provided on the top of the cabinet, and the conveying mechanism runs through the test cavity. The conveying mechanism includes a belt conveyor fixed on the top of the cabinet, and the other side of the bottom of the test box is fixed on the frame of the belt conveyor. A plurality of motor carrying boxes are arranged in front and back on the conveyor belt of the belt conveyor. The top of the motor carrying box is open, and the test motor is clamped inside the motor carrying box by a clamp. The output shaft of the test motor runs through one side of the motor carrying box, and a cover plate is hinged on the other side of the motor carrying box. The conveying mechanism is used to convey the test motors to the test cavity in sequence, which is conducive to batch testing of the test motors.

[0012] Preferably, an inlet and an outlet are respectively provided at the front and rear ends of the cabinet, and the inlet and outlet are respectively arranged on the front and rear sides of the test cavity and connected to the inside of the test cavity. The motor carrying box is adapted to the size of the inlet and outlet, and a sealing gasket is fixed at the inlet and outlet to fit the outer end of the motor carrying box. A through groove is provided on one side of the test cavity, and the sealing gasket at the inlet and outlet is provided with a second through opening connected to the through groove. Top baffles are fixed at both front ends of the test box body, and the two top baffles are respectively arranged above the inlet and outlet. The top baffle covers the top of the motor carrying box, and a sealing gasket for closing the top opening of the motor carrying box is fixed at the bottom end of the top baffle, thereby reducing heat and moisture loss and helping to reduce energy consumption.

[0013] Preferably, the output end of the load motor is provided with a connecting inner plate, and the output end of the test motor is fixedly provided with a connecting outer plate, the connecting outer plate matches the connecting inner plate, a sealing gasket is pasted on the inner wall of the connecting outer plate, and circular holes are penetrated on the connecting outer plate, the sealing gasket on the connecting outer plate, and the connecting inner plate, and a torque meter is connected between the output end of the load motor and the connecting inner plate.

[0014] Preferably, a plurality of baffles are fixedly provided on the conveyor belt of the belt conveyor, and the baffles are arranged between the motor bearing boxes, which is conducive to the smooth forward transmission of the motor bearing boxes.

[0015] Preferably, temperature sensors and hygrometers distributed vertically are fixedly provided on the inner wall of the cabinet, and the temperature sensors and hygrometers are provided below the regulating mechanism for detecting temperature and humidity.

[0016] Technical effects and advantages of the present invention:

[0017] 1. The present invention uses a conveying mechanism to sequentially transport motor carrier boxes equipped with test motors to the test chamber for testing, facilitating batch testing of test motors. Simultaneously, after the test motor in one motor carrier box is tested, the belt conveyor is activated to replace the test motor in the next motor carrier box and move it to the test chamber. The design of the top baffle and the sealing gasket thereon effectively reduces heat and moisture loss when replacing the test motor, thereby reducing energy consumption.

[0018] 2. During the test, the temperature in the test chamber will continue to rise because the test motor will emit heat when it is working. The drive motor of the adjustment mechanism drives the rotating rod to rotate, so that the second ventilation hole and the first ventilation hole intermittently overlap. At the same time, the fan blades rotate to draw the hot air in the first cavity into the second cavity, which is conducive to quickly adjusting the temperature in the test cavity;

[0019] 3. To prevent the waste of heat from the hot air in the second cavity, the present invention recovers the heat from the hot air in the second cavity through a heat storage mechanism. At the same time, the heat from the heat-conducting water storage tank is transferred to the test cavity through a connecting pipe, which can preheat the test cavity before the next test, thereby reducing energy consumption.

[0020] 4. The present invention uses a water pump to transport the hot water in the heat-conducting water storage tank into the humidification pipe and then sprays it out through the atomizing nozzle to heat and humidify the test chamber, thereby providing the required temperature and humidity for the next batch of tests, which is beneficial to reducing the electric energy required for heating by the heater, thereby helping to reduce energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the overall structural diagram of the present invention;

[0022] Figure 2 It is the overall structural diagram of the present invention;

[0023] Figure 3 It is the front view of the present invention;

[0024] Figure 4 This is a structural diagram of the test box, adjustment mechanism, and heat storage mechanism of the present invention;

[0025] Figure 5 is a cross-sectional view of the test box of the present invention;

[0026] Figure 6 It is a structural diagram of the regulating mechanism of the present invention;

[0027] Figure 7 This is a structural diagram of the heat storage mechanism of the present invention;

[0028] Figure 8 It is a structural diagram of the conveying mechanism of the present invention;

[0029] Figure 9 is a cross-sectional view of the conveying mechanism of the present invention;

[0030] Figure 10 This is a cross-sectional view of the motor carrying box of the present invention.

[0031] The accompanying drawings are marked as follows: 1 cabinet, 2 test box, 3 test chamber, 4 first chamber, 5 second chamber, 6 heater, 7 water tank, 8 water pump, 9 humidification pipe, 10 atomizing nozzle, 11 water pipe, 12 load motor, 13 adjustment mechanism, 14 heat storage mechanism, 15 conveying mechanism, 16 drive motor, 17 rotating rod, 18 fan blade, 19 cylinder, 20 fixed plate, 21 rotating plate, 22 first ventilation hole, 23 second ventilation hole, 24 thermal insulation box, 25 connecting pipe, 26 thermal water storage tank, 27 thermal insulation cross plate, 28 first opening, 29 exhaust pipe, 30 belt conveyor, 31 motor bearing box, 32 test motor, 33 connecting outer plate, 34 connecting inner plate, 35 cover plate, 36 baffle, 37 top baffle, 38 through groove. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0033] like Figure 1-4As shown, the present invention provides a walk-in motor load test wet heat box for a high humidity test environment, including a cabinet 1 and a test box body 2 fixed to the top of the cabinet 1 by a support. A control system for controlling the operation of the entire device is installed inside the cabinet 1. The control system can adopt an existing control system and will not be further described here. The bottom of the test box body 2 is open and the bottom space is a test cavity 3. An inlet and an outlet are respectively provided at the front and rear ends of the cabinet 1, and the inlet and outlet are respectively provided at the front and rear sides of the test cavity 3 and are connected to the inside of the test cavity 3. A through slot 38 is provided on one side of the test cavity 3. The test motor 32 is transported into the test cavity 3 through the inlet for load testing and is sent out from the outlet after the test.

[0034] like Figure 4 As shown, the top space of the test box 2 is divided by a partition into a first cavity 4 and a second cavity 5 distributed on the left and right. The first cavity 4 is arranged on the top of the test cavity 3 and communicates with the test cavity 3. A heater 6 is fixed on the rear wall inside the first cavity 4. The heater 6 heats the first cavity 4 when it works, and the heat is transferred to the test cavity 3 to provide the test motor 32 with the temperature required for the test, and a temperature sensor for detecting the temperature is fixed on the inner wall of the cabinet 1.

[0035] In order to provide the test motor 32 with the high humidity environment required for the test, Figure 1-3 As shown, a water tank 7 and a water pump 8 are fixedly provided at the top of the test box 2. The water tank 7 is provided on one side of the water pump 8, and the water inlet end of the water pump 8 is connected to the water tank 7 through a pipe, and an electric valve is fixed on the pipe. Two humidification pipes 9 distributed front and back are fixed at the top of the inside of the first cavity 4. The two humidification pipes 9 are connected by a water pipe 11. A plurality of atomizing nozzles 10 are fixed at the bottom ends of the two humidification pipes 9. The water outlet end of the water pump 8 passes through the top of the test box 2 and the top of one of the humidification pipes 9 and is connected to the inside of the humidification pipe 9. The water pump 8 transports the water in the water tank 7 into the humidification pipe 9, and then sprays water mist through the atomizing nozzle 10, thereby humidifying the test cavity 3, and a hygrometer for detecting humidity is fixed on the inner wall of the cabinet 1.

[0036] Before the test, since the top of the cabinet 1 is provided with a conveying mechanism 15, the conveying mechanism 15 passes through the test chamber 3, and the test motor 32 is first conveyed into the test chamber 3 by the conveying mechanism 15, specifically: Figure 8-10As shown, first, the conveying mechanism 15 includes a belt conveyor 30 fixed on the top of the cabinet 1, and the other side of the bottom of the test box body 2 is fixed on the frame of the belt conveyor 30. A plurality of motor carrying boxes 31 are arranged in front and back on the conveyor belt of the belt conveyor 30. The top of the motor carrying box 31 is open, and the inside of the motor carrying box 31 is clamped with a test motor 32 by a clamp. The output shaft of the test motor 32 passes through one side of the motor carrying box 31, and the output end of the test motor 32 is fixed with a connecting outer plate 33, and the other side of the motor carrying box 31 is hinged with a cover plate 35; open the cover plate 35 and put the test motor 32 into the motor carrying box 31 so that the output end of the test motor 32 extends out of the motor carrying box 31, then fix the test motor 32 with a clamp, and then fix the connecting outer plate 33 to the output end of the test motor 32, and finally close the cover plate 35. After installation, the motor carrying boxes 31 are arranged on the belt conveyor 30 and the belt conveyor 30 transports the motor carrying boxes 31 to the test chamber 3 in sequence, which is conducive to batch testing of the test motors 32.

[0037] Then, the test motor 32 entering the test chamber 3 is connected to the load motor 12 of the cabinet 1 for experiment, and the load motor 12 is arranged on one side of the bottom of the test box 2, specifically: the output end of the load motor 12 is provided with a connecting inner plate 34, the connecting outer plate 33 matches the connecting inner plate 34, a sealing gasket is pasted on the inner wall of the connecting outer plate 33, and the connecting outer plate 33, the sealing gasket on the connecting outer plate 33, and the connecting inner plate 34 are all penetrated by circular holes, and a torque meter is connected between the output end of the load motor 12 and the connecting inner plate 34; after a test motor 32 to be tested moves into the test chamber 3, the belt conveyor 30 stops, and the test The output end of the test motor 32 passes through the through slot 38, and the connecting outer plate 33 is sleeved on the connecting inner plate 34. The connecting outer plate 33, the sealing gasket on the connecting outer plate 33, and the circular hole on the connecting inner plate 34 are communicated. Bolts are used to pass through the circular holes and then nuts are installed on the bolts to fix the connecting outer plate 33 and the connecting inner plate 34, thereby connecting the test motor 32 to the load motor 12. During the test, the heater 6 works to provide the test motor 32 with the temperature required for the test, and the atomizing nozzle 10 sprays water mist to provide the test chamber 3 with the humidity required for the test. During specific testing, a detection unit is connected to the test motor 32 to detect the parameters of the motor under test.

[0038] In order to avoid the loss of heat and moisture in the test chamber 3 during testing, the motor carrier box 31 is designed to be compatible with the size of the inlet and outlet, and a sealing gasket that fits the outer end of the motor carrier box 31 is fixed at the inlet and outlet, and the sealing gaskets at the inlet and outlet are provided with a second opening connected to the through groove 38. The design of the sealing gasket here effectively prevents the loss of heat and moisture in the test chamber 3 during the experiment, and top baffles 37 are fixed at both front ends of the test box body 2. The two top baffles 37 are respectively arranged above the inlet and outlet. The top baffle 37 covers the top of the motor carrier box 31, and the bottom end of the top baffle 37 is fixed with a sealing gasket for closing the top opening of the motor carrier box 31. After the test of the test motor 32 in one motor carrier box 31 is completed, the belt conveyor 30 is started to replace the test motor 32 in the next motor carrier box 31 and move it into the test chamber 3. The design of the top baffle 37 and the sealing gasket thereon effectively reduces the loss of heat and moisture when replacing the test motor 32, which is conducive to reducing energy consumption.

[0039] In order to prevent the motor carrying box 31 from slipping on the conveyor belt of the belt conveyor 30, a plurality of baffles 36 are fixedly provided on the conveyor belt of the belt conveyor 30. The baffles 36 are arranged between the motor carrying boxes 31, which is conducive to the smooth forward transmission of the motor carrying box 31.

[0040] During the test, the temperature in the test box 2 will continue to rise because the test motor 32 will emit heat when it is working. In order to quickly adjust the temperature in the test box 2, Figure 4 As shown, an adjustment mechanism 13 is provided in both the first cavity 4 and the second cavity 5 , and the adjustment mechanism 13 is provided between the atomizing nozzle 10 and the heater 6 .

[0041] Specifically, such as Figure 4-6As shown, the adjustment mechanism 13 includes a drive motor 16 fixed to one side of the cabinet 1, and a rotating rod 17 is fixed to the output end of the drive motor 16. The rotating rod 17 passes through the first cavity 4 and the second cavity 5 and extends out of both sides of the test box 2, and the rotating rod 17 is connected to the test box 2 through a sealed bearing. A fan blade 18 is fixed to the outer end of the rotating rod 17, and the fan blade 18 is arranged inside the second cavity 5. Two cylinders 19 are provided on the outside of the rotating rod 17. The cylinder 19 is arranged on the side of the fan blade 18 away from the drive motor 16, and the two cylinders 19 are respectively fixed on the other side of the test box 2 and the inner wall of the second cavity 5 , the two cylinders 19 are connected to the interior of the first cavity 4, and the inner walls of the two cylinders 19 are integrally formed with a fixed plate 20. The two fixed plates 20 are both sleeved on the outer end of the rotating rod 17 and are connected to the rotating rod 17 through a sealed bearing. A rotating plate 21 is provided inside the two cylinders 19, and the rotating plate 21 is provided on the outside of the fixed plate 20. The two rotating plates 21 are respectively fixedly connected to the outer end of the rotating rod 17 and the end of the rotating rod 17 away from the drive motor 16. A plurality of first ventilation holes 22 are opened on the fixed plate 20, and a plurality of second ventilation holes 23 are opened on the rotating plate 21. The first ventilation holes 22 and the second ventilation holes 23 are staggered.

[0042] When the temperature sensor detects that the temperature in the first cavity 4 and the test cavity 3 exceeds the temperature required for the test, the drive motor 16 is started to drive the rotating rod 17 to rotate, thereby driving the two rotating plates 21 to rotate, so that the second ventilation hole 23 and the first ventilation hole 22 intermittently overlap. When the second ventilation hole 23 overlaps with the first ventilation hole 22, the cylinder 19 opens, and at the same time, the fan blades 18 on the rotating rod 17 rotate to suck the hot air in the first cavity 4 into the second cavity 5, which is beneficial to cooling the test cavity 3. When it is detected that the temperature in the test cavity 3 is normal, the drive motor 16 stops. At this time, the second ventilation hole 23 and the first ventilation hole 22 are staggered, so that the cylinder 19 is closed, thereby achieving rapid temperature adjustment in the test cavity 3.

[0043] In order to maintain the sealing of the cylinder 19, a sealing gasket is fixed on the side of the fixed plate 20 close to the rotating plate 21. The sealing gasket is in contact with the side of the rotating plate 21 close to the fixed plate 20, and a through hole communicating with the first ventilation hole 22 is opened on the sealing gasket.

[0044] In order to prevent the heat of the hot air in the second cavity 5 from being wasted, a heat storage mechanism 14 is provided at the top of the test box 2, and the heat storage mechanism 14 is provided on the other side of the water pump 8. The heat storage mechanism 14 includes an insulating box body 24, and the insulating box body 24 is provided on the other side of the water pump 8. A heat-conducting water storage tank 26 is fixedly provided inside the insulating box body 24, and a pipe is fixedly provided between the top of the rear side of the insulating box body 24 and the rear end of the cabinet 1. The pipe is used to connect the insulating box body 24 and the second cavity 5, and a one-way valve is fixedly provided on the pipe. An air outlet pipe 29 is fixedly provided at the bottom of the side of the insulating box body 24 away from the water pump 8. The air outlet pipe 29 is provided below the insulating cross plate 27, and a one-way valve is fixedly provided on the air outlet pipe 29. The hot air in the second cavity 5 flows into the insulating box body 24 through the pipe between the top of the rear side of the insulating box body 24 and the rear end of the cabinet 1 to exchange heat with the water in the heat-conducting water storage tank 26. The hot air after heat exchange is discharged through the air outlet pipe 29, thereby realizing the recovery of the heat of the hot air in the second cavity 5.

[0045] In addition, in order to improve the heat exchange effect, a plurality of insulation cross plates 27 distributed up and down are fixedly provided on the inner wall of the insulation box body 24, and the plurality of insulation cross plates 27 are fixedly provided on the outer end of the heat-conducting water storage tank 26. The insulation cross plates 27 in odd rows, counted from top to bottom, are provided with a first opening 28 passing through the insulation cross plates 27 on the side away from the water pump 8. The insulation cross plates 27 in even rows, counted from top to bottom, are provided with a first opening 28 passing through the insulation cross plates 27 on the side close to the water pump 8. The end of the pipe between the top rear side of the insulation box body 24 and the rear end of the cabinet 1 is close to the insulation cross plate 27 and is provided above the insulation cross plate 27. The hot air entering the insulation box body 24 flows through the first opening 28 on the insulation cross plate 27, which helps to extend the movement path of the hot air and increase the heat exchange time, thereby helping to improve the heat exchange effect.

[0046] In order to utilize the heat recovered in the thermal water storage tank 26, a connecting pipe 25 is fixedly provided at the bottom end of the insulating box 24, and the connecting pipe 25 is arranged at the top of the test box 2. The insulating box 24, the connecting pipe 25, and the first cavity 4 are connected, and the connecting pipe 25 is arranged between the two humidification pipes 9. An electric valve is fixedly provided on the connecting pipe 25. When the electric valve on the connecting pipe 25 is opened, the heat of the thermal water storage tank 26 is transferred to the test cavity 3 through the connecting pipe 25. The test cavity 3 can be preheated before the next test, which is beneficial to reducing energy consumption.

[0047] At the same time, the water inlet end of the water pump 8 is connected to the thermal water storage tank 26 through a pipe, and an electric valve is fixed on the pipe. The water pump 8 transports the hot water from the thermal water storage tank 26 into the humidification pipe 9 and then sprays it through the atomizing nozzle 10 to heat and humidify the test chamber 3, thereby providing the required temperature and humidity for the next batch of tests, which is beneficial to reducing the electrical energy required for heating by the heater 6, thereby helping to reduce energy consumption.

[0048] Finally, the present invention provides multiple methods for heating and humidifying the test chamber 3: one is to open the electric valve on the connecting pipe 25 before the experiment to preheat the test chamber 3 with the heat of the thermal water storage tank 26, or to use the hot water in the thermal water storage tank 26 to heat and humidify the test chamber 3 at the same time, which is beneficial to energy saving; secondly, during the experiment, the heater 6 is used to heat and the water in the water tank 7 is used to humidify, which helps to maintain the high humidity and heat experimental environment required for the experiment.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A walk-in motor load test damp heat chamber for high humidity test environments, comprising a cabinet and a test chamber fixed to the top of the cabinet by supports, characterized in that: The bottom of the test box is open and the bottom space is a test chamber. The top space of the test box is divided into a first chamber and a second chamber distributed on the left and right by a partition. The first chamber is arranged at the top of the test chamber and communicates with the test chamber. A heater is fixedly provided on the rear wall inside the first chamber. A water tank and a water pump are fixedly provided on the top of the test box. The water tank is arranged on one side of the water pump, and the water inlet end of the water pump is connected to the water tank through a pipe, and an electric valve is fixedly provided on the pipe. Two humidification pipes distributed front and back are fixedly provided on the top of the first cavity. The two humidification pipes are connected through a water pipe. A plurality of atomizing nozzles are fixed at the bottom ends of the two humidification pipes. The water outlet end of the water pump passes through the top of the test box and the top of one of the humidification pipes is connected to the inside of the humidification pipe. A load motor is fixedly provided on the top of the cabinet, and the load motor is provided on one side of the bottom of the test box. An adjustment mechanism is provided in both the first cavity and the second cavity, and the adjustment mechanism is provided between the atomizing nozzle and the heater; A heat storage mechanism is provided on the top of the test box, and the heat storage mechanism is provided on the other side of the water pump; A conveying mechanism is provided on the top of the cabinet, and the conveying mechanism passes through the test cavity.

2. The walk-in motor load test humidity chamber for high humidity test environment according to claim 1, characterized in that: The adjustment mechanism includes a drive motor fixedly mounted on one side of the cabinet, a rotating rod fixedly mounted on the output end of the drive motor, the rotating rod passing through the first cavity and the second cavity and extending out of both sides of the test box, and the rotating rod and the test box are connected via a sealed bearing, a fan blade fixedly mounted on the outer end of the rotating rod, and the fan blade is disposed inside the second cavity; Two cylinders are provided on the outside of the rotating rod, and the cylinders are provided on the side of the fan blade away from the drive motor, and the two cylinders are respectively fixed on the other side of the test box and the inner wall of the second cavity, and the two cylinders are both connected to the inside of the first cavity, and the inner walls of the two cylinders are integrally formed with fixed plates, and the two fixed plates are both sleeved on the outer ends of the rotating rod and are connected to the rotating rod through sealed bearings, and a rotating plate is provided inside the two cylinders, and the rotating plate is provided on the outside of the fixed plate, and the two rotating plates are respectively fixedly connected to the outer end of the rotating rod and the end of the rotating rod away from the drive motor, a plurality of first ventilation holes are provided on the fixed plate, and a plurality of second ventilation holes are provided on the rotating plate, and the first ventilation holes and the second ventilation holes are staggered.

3. The walk-in motor load test humidity chamber for high humidity test environment according to claim 2, characterized in that: A sealing gasket is fixedly provided on one side of the fixed plate close to the rotating plate. The sealing gasket is in contact with the side of the rotating plate close to the fixed plate. A through hole communicating with the first ventilation hole is opened on the sealing gasket.

4. The walk-in motor load test humidity chamber for high humidity test environment according to claim 1, characterized in that: The heat storage mechanism includes an insulating box body, which is arranged on the other side of the water pump. A connecting pipe is fixedly provided at the bottom end of the insulating box body, and the connecting pipe is arranged at the top of the test box body. The insulating box body, the connecting pipe and the first cavity are connected, and the connecting pipe is arranged between the two humidification pipes. An electric valve is fixed on the connecting pipe, and a heat-conducting water storage tank is fixed inside the insulating box body.

5. The walk-in motor load test humidity chamber for high humidity test environment according to claim 4, characterized in that: The inner wall of the heat-insulating box is fixed with a plurality of heat-insulating horizontal plates distributed up and down, and the plurality of heat-insulating horizontal plates are fixedly arranged on the outer end of the heat-conducting water storage tank. The water inlet end of the water pump is connected to the heat-conducting water storage tank through a pipe, and an electric valve is fixed on the pipe; The side of the odd-numbered insulation horizontal plate from top to bottom away from the water pump is provided with a first opening penetrating the insulation horizontal plate, and the side of the even-numbered insulation horizontal plate from top to bottom close to the water pump is provided with a first opening penetrating the insulation horizontal plate. A pipe is fixedly provided between the top of the rear side of the insulation box body and the rear end of the cabinet. The pipe is used to connect the insulation box body and the second cavity. One end of the pipe close to the insulation horizontal plate is provided above the insulation horizontal plate, and a one-way valve is fixedly provided on the pipe. An air outlet pipe is fixedly provided at the bottom of one side of the heat-insulating box body away from the water pump. The air outlet pipe is arranged below the heat-insulating horizontal plate, and a one-way valve is fixedly provided on the air outlet pipe.

6. The walk-in motor load test humidity chamber for high humidity test environment according to claim 1, characterized in that: The conveying mechanism includes a belt conveyor fixed on the top of the cabinet, and the other side of the bottom of the test box is fixed on the frame of the belt conveyor. A plurality of motor bearing boxes are arranged in front and back on the conveyor belt of the belt conveyor. The top of the motor bearing box is open, and a test motor is clamped inside the motor bearing box by a clamp. The output shaft of the test motor passes through one side of the motor bearing box, and a cover plate is hinged on the other side of the motor bearing box.

7. The walk-in motor load test humidity chamber for high humidity test environment according to claim 6, characterized in that: The cabinet is respectively provided with an inlet and an outlet at the front and rear ends, and the inlet and outlet are respectively arranged on the front and rear sides of the test cavity and connected to the inside of the test cavity. The motor bearing box is adapted to the size of the inlet and outlet, and a sealing gasket is fixed at the inlet and outlet to fit the outer end of the motor bearing box. A through groove is provided on one side of the test cavity, and the sealing gaskets at the inlet and outlet are provided with a second through opening connected to the through groove. Top baffles are fixed at both front ends of the test box body, and two top baffles are respectively arranged above the inlet and outlet. The top baffle covers the top of the motor bearing box, and a sealing gasket for closing the top opening of the motor bearing box is fixed at the bottom end of the top baffle.

8. The walk-in motor load test humidity chamber for high humidity test environment according to claim 6, characterized in that: The output end of the load motor is provided with a connecting inner plate, and the output end of the test motor is fixedly provided with a connecting outer plate. The connecting outer plate matches the connecting inner plate, and a sealing gasket is pasted on the inner wall of the connecting outer plate. The connecting outer plate, the sealing gasket on the connecting outer plate, and the connecting inner plate are all penetrated by circular holes. A torque meter is connected between the output end of the load motor and the connecting inner plate.

9. The walk-in motor load test humidity chamber for high humidity test environment according to claim 6, characterized in that: A plurality of baffles are fixedly provided on the conveyor belt of the belt conveyor, and the baffles are arranged between the motor bearing boxes.

10. The walk-in motor load test humidity chamber for high humidity test environment according to claim 2, characterized in that: Temperature sensors and hygrometers distributed up and down are fixedly provided on the inner wall of the cabinet, and the temperature sensors and hygrometers are arranged below the regulating mechanism.

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