阅读说明：本技术 一种电机控制器试验用快速温变试验箱及其试验方法 (Rapid temperature change test box for motor controller test and test method thereof ) 是由 王云龙 张洪田 孙远涛 刘长喜 王晓宏 于 2021-09-29 设计创作，主要内容包括：本发明公开了一种电机控制器试验用快速温变试验箱及其试验方法,涉及快速温变试验箱技术领域,包括试验箱、链条,所述试验箱的内部开设有试验室,所述试验室的内腔转动连接有两个转动轴,两个所述转动轴的中部分别设置有双向丝杆轴,两个所述双向丝杆轴上螺纹套接有升降板,所述升降板的中部开设有透气槽。该电机控制器试验用快速温变试验箱及其试验方法,在对电机控制器进行快速温变试验时,伺服电机带动传动杆转动,通过链轮和链条之间的传动使得转动轴以及双向丝杆轴旋转,带动升降板以及电机控制器上下往复运动,提高高温、低温气体与电机控制器的接触效率,提高了电机控制器快速温变试验的质量。(The invention discloses a rapid temperature change test box for a motor controller test and a test method thereof, and relates to the technical field of rapid temperature change test boxes. According to the rapid temperature change test box for the motor controller test and the test method thereof, when the rapid temperature change test is performed on the motor controller, the servo motor drives the transmission rod to rotate, the rotation shaft and the bidirectional screw shaft rotate through transmission between the chain wheel and the chain, the lifting plate and the motor controller are driven to reciprocate up and down, the contact efficiency of high-temperature and low-temperature gas and the motor controller is improved, and the quality of the rapid temperature change test of the motor controller is improved.)

1. The utility model provides a quick temperature change proof box is used in machine controller experiment, includes proof box (1), chain (60), its characterized in that: the testing box comprises a testing box body (1), a testing chamber (2) is arranged in the testing box body (1), an inner cavity of the testing chamber (2) is rotatably connected with two rotating shafts (37), two bidirectional screw shafts (32) are arranged in the middle of the two rotating shafts (37), lifting plates (39) are sleeved on the two bidirectional screw shafts (32) in a threaded mode, a ventilating groove (51) is formed in the middle of each lifting plate (39), two supports (48) are arranged at the top of each lifting plate (39), sliding rails (50) are fixedly installed on the inner sides of the two supports (48) respectively, a placing platform (38) is arranged on the inner sides of the two sliding rails (50), a plurality of ventilating holes (49) are formed in the surface of the placing platform (38), a first transmission groove (59) is formed in the testing box body (1), one end of each rotating shaft (37) extends to the inner cavity of the first transmission groove (59) and is fixedly sleeved with a chain wheel (61) respectively, the inner cavity of the test room (2) is rotationally connected with a transmission rod (27), one end of the transmission rod (27) extends to the inner cavity of the first transmission groove (59) and is fixedly sleeved with other chain wheels (61), the three chain wheels (61) are in transmission connection through a chain (60), a second transmission groove (54) is formed in the test box (1), a first gear (58) is fixedly sleeved in an inner cavity of the transmission rod (27) extending to the second transmission groove (54), the inner cavity of the second transmission groove (54) is rotationally connected with a rotating shaft (55), a second gear (57) is fixedly sleeved on the side surface of the rotating shaft (55) and is positioned in the inner cavity of the second transmission groove (54), the second gear (57) is meshed with the first gear (58), the bottom end of the rotating shaft (55) extends to the inner cavity of the laboratory (2), the side of pivot (55) bottom is provided with a plurality of flabellum (56).

2. The rapid temperature change test chamber for the motor controller test according to claim 1, characterized in that: an air suction box (28) is arranged on one side of an inner cavity of the test chamber (2), a plurality of air suction covers (29) are arranged on the side face of the air suction box (28), an air inlet box (30) is arranged on the other side of the inner cavity of the test chamber (2), and an air inlet cover (31) is arranged on the side face of the air inlet box (30).

3. The rapid temperature change test chamber for the motor controller test according to claim 1, characterized in that: the test box is characterized in that a heat storage chamber (3) is arranged in the test box (1), a hot air storage air bag (7) is arranged in an inner cavity of the heat storage chamber (3), an odor purification box (21) is arranged in the inner cavity of the heat storage chamber (3), one side of the odor purification box (21) extends to the outside of the test box (1) and is hinged with a material changing door (53), activated carbon purification cotton (23) is arranged in the inner cavity of the odor purification box (21), an air duct (22) is connected to the other side of the odor purification box (21), one end of the air duct (22) is connected with the hot air storage air bag (7), a first air suction pump (9) is fixedly arranged in the inner cavity of the heat storage chamber (3), two ends of the first air suction pump (9) are respectively and fixedly connected with first air suction pipes (13), one end of one air suction pipe (13) extends to the inner cavity of the test box (2) and is connected with an air inlet box (30), one the middle part of first exhaust tube (13) is provided with first check valve (17), another the one end of first exhaust tube (13) is connected with steam storage gasbag (7), the inner chamber fixed mounting of heat reservoir (3) has second aspiration pump (10), the both ends difference fixedly connected with second exhaust tube (14) of second aspiration pump (10), one the inner chamber that one end of second exhaust tube (14) extended to test room (2) is connected with exhaust box (28), one the middle part of second exhaust tube (14) is provided with second check valve (18), another the one end of second exhaust tube (14) extends to the inner chamber of peculiar smell purifying box (21).

4. The rapid temperature change test chamber for the motor controller test according to claim 3, characterized in that: the test box is characterized in that a cold storage chamber (4) is formed in the test box (1), a cold storage air bag (8) is arranged in an inner cavity of the cold storage chamber (4), first temperature sensors (24) are arranged in the cold storage air bag (8) and an inner cavity of a hot air storage air bag (7), a third air suction pump (11) is fixedly arranged in the inner cavity of the cold storage chamber (4), third air suction pipes (15) are fixedly connected to two ends of the third air suction pump (11) respectively, one end of one third air suction pipe (15) extends to the inner cavity of the test box (2) and is connected with an air inlet box (30), a third one-way valve (19) is arranged in the middle of one third air suction pipe (15), one end of the other third air suction pipe (15) is connected with the cold storage air bag (8), and a fourth air suction pump (12) is fixedly arranged in the inner cavity of the cold storage chamber (4), and two ends of the fourth air pump (12) are respectively and fixedly connected with fourth air pumping pipes (16), one end of one fourth air pumping pipe (16) extends to the inner cavity of the test room (2) and is connected with an air pumping box (28), a fourth one-way valve (20) is arranged in the middle of the other fourth air pumping pipe (16), and one end of the other fourth air pumping pipe (16) is connected with the cold air storage airbag (8).

5. The rapid temperature change test chamber for the motor controller test according to claim 1, characterized in that: the water storage tank (34) is arranged inside the test box (1), the heating device (5) is arranged inside the test box (1), the output end of the heating device (5) is connected with the hot air storage air bag (7), the refrigerating device (6) is arranged inside the test box (1), and the output end of the refrigerating device (6) is connected with the cold air storage air bag (8).

6. The rapid temperature change test chamber for the motor controller test according to claim 4, characterized in that: the top of cold volume apotheca (4) inner chamber is provided with servo motor (26), the output shaft of servo motor (26) and the one end fixed connection of transfer line (27), the inner chamber fixed mounting of cold volume apotheca (4) has vacuum pump (33), the both ends difference fixedly connected with exhaust copper pipe (35) of vacuum pump (33), one the one end of exhaust copper pipe (35) extends to the inner chamber of test room (2), another the inner chamber that the one end of exhaust copper pipe (35) runs through catch basin (34) extends to the outside of test box (1).

7. The rapid temperature change test chamber for the motor controller test according to claim 1, characterized in that: the both sides at lifter plate (39) top are provided with second temperature sensor (52), fixed slot (46) have been seted up to the top surface of lifter plate (39), rotating groove (40) have been seted up to the inside of place the platform (38), activity groove (44) have been seted up to the bottom surface of place the platform (38), the inner chamber rotation of rotating groove (40) is connected with rotates post (41), the surface that rotates post (41) and the inner chamber that is located rotating groove (40) are provided with rolling disc (43), the side fixedly connected with rotor plate (45) of rolling disc (43), the inner chamber that the one end of rotor plate (45) runs through activity groove (44) extends to fixed slot (46)'s inner chamber, the outside of rotating post (41) is provided with torsional spring (42), the one end of torsional spring (42) is connected with the terminal surface of rolling disc (43), the other end of torsional spring (42) is connected with the inner wall that rotates groove (40), one end of the rotating column (41) extends to the outside of the placing platform (38) and is fixedly connected with a pull ring (47).

8. The rapid temperature change test chamber for the motor controller test according to claim 1, characterized in that: the front face of the test box (1) is hinged to a sealing door (36) outside the test chamber (2), and the front face of the test box (1) is provided with a control panel (25).

9. A motor controller test method is characterized in that: the method comprises the following steps:

s1: placing the motor controller to be tested on a placement platform (38);

s2: the heating device (5) charges hot air into the inner cavity of the hot air storage air bag (7), the refrigerating device (6) charges cold air into the inner cavity of the cold air storage air bag (8), and the vacuum pump (33) is controlled to pump the inner cavity of the laboratory (2) into a vacuum state;

s3: the lifting plate (39) drives the motor controller on the placing platform (38) to move up and down, the fan blades (56) rotate to generate wind power, cold air in the inner cavity of the cold air storage air bag (8) is guided into the inner cavity of the test room (2), and the motor controller performs a test in a low-temperature state;

s4: cold air in the inner cavity of the test room (2) is pumped back to the cold air storage air bag (8), so that hot air in the inner cavity of the hot air storage air bag (7) is led into the inner cavity of the test room (2), and the motor controller performs a test when the low temperature and the high temperature are rapidly changed;

s5: the hot air in the inner cavity of the test room (2) is purified by the activated carbon purification cotton (23) and then is guided back to the inner cavity of the hot air storage air bag (7), cold air is injected into the inner cavity of the test room (2) again, and the performance of the motor controller under rapid temperature change is tested repeatedly;

s6: after the test is finished, a vacuum pump (33) is started to discharge hot air in the inner cavity of the test room (2), the hot air circulating in the inner cavity of the exhaust copper pipe (35) heats water in the inner cavity of the water storage tank (34), and then the motor controller is taken down to discharge cold air in the inner cavity of the cold air storage air bag (8).

Technical Field

The invention relates to the technical field of a rapid temperature change test box, in particular to a rapid temperature change test box for a motor controller test and a test method thereof.

Background

The motor controller is an integrated circuit which controls the motor to work according to the set direction, speed, angle and response time through active work, and the motor controller needs to perform cold and hot tests, detect the performance of the motor controller and detect the adaptability of the motor controller in high and low temperature environments.

However, in the existing rapid temperature change test box for testing the motor controller, the motor controller is directly placed on the fixing plate for testing, heat or cold air cannot be well contacted with the motor controller, and in addition, the heat is not well utilized after the test is finished and is directly discharged into the air, so that the energy waste is caused, and the requirement of the current use cannot be met, and therefore, the rapid temperature change test box for testing the motor controller and the test method thereof are provided.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a quick temperature change test box for a motor controller test and a test method thereof, which solve the problems in the background technology.

In order to achieve the purpose, the invention is realized by the following technical scheme: a rapid temperature change test box for a motor controller test comprises a test box and a chain, wherein a test chamber is arranged inside the test box, an inner cavity of the test chamber is rotatably connected with two rotating shafts, two-way screw shafts are respectively arranged in the middle of the two rotating shafts, lifting plates are sleeved on the two-way screw shafts in a threaded manner, a ventilation groove is formed in the middle of each lifting plate, two supports are arranged at the top of each lifting plate, slide rails are fixedly arranged on the inner sides of the two supports respectively, a placing platform is arranged on the inner sides of the two slide rails, a plurality of ventilation holes are formed in the surface of the placing platform, a first transmission groove is formed inside the test box, one end of each rotating shaft extends to the inner cavity of the first transmission groove and is respectively and fixedly sleeved with a chain wheel, a transmission rod is rotatably connected to the inner cavity of the test chamber, and one end of each transmission rod extends to the inner cavity of the first transmission groove and is fixedly sleeved with other chain wheels, it is three the sprocket passes through chain drive and connects, the second transmission groove has been seted up to the inside of proof box, the fixed cover of inner chamber that the one end of transfer line extended to the second transmission groove has connect first gear, the inner chamber in second transmission groove rotates and is connected with the pivot, the side of pivot and the fixed cover of inner chamber that is located the second transmission groove have connect the second gear, second gear and first gear intermeshing, the bottom of pivot extends to the inner chamber of laboratory, the side of pivot bottom is provided with a plurality of flabellum.

Optionally, an air suction box is arranged on one side of the inner cavity of the test chamber, a plurality of air suction covers are arranged on the side face of the air suction box, an air inlet box is arranged on the other side of the inner cavity of the test chamber, and an air inlet cover is arranged on the side face of the air inlet box.

Optionally, a heat storage chamber is arranged inside the test box, a hot gas storage airbag is arranged in an inner cavity of the heat storage chamber, an odor purification box is arranged in the inner cavity of the heat storage chamber, one side of the odor purification box extends to the outside of the test box and is hinged with a material changing door, activated carbon purification cotton is arranged in the inner cavity of the odor purification box, an air guide pipe is connected to the other side of the odor purification box, one end of the air guide pipe is connected with the hot gas storage airbag, a first air suction pump is fixedly installed in the inner cavity of the heat storage chamber, first air suction pipes are fixedly connected to two ends of the first air suction pump respectively, one end of one first air suction pipe extends to the inner cavity of the test chamber and is connected with the air inlet box, a first one-way valve is arranged in the middle of one first air suction pipe, and one end of the other first air suction pipe is connected with the hot gas storage airbag, the inner chamber of heat reservoir is fixed with the second aspiration pump, the both ends of second aspiration pump fixedly connected with second exhaust tube respectively, one the inner chamber that one end of second exhaust tube extended to the laboratory is connected with the exhaust chamber, one the middle part of second exhaust tube is provided with the second check valve, another the one end of second exhaust tube extends to the inner chamber of peculiar smell purifying box.

Optionally, a cold storage chamber is arranged inside the test box, a cold storage air bag is arranged in an inner cavity of the cold storage chamber, the cold storage air bag and an inner cavity of the hot storage air bag are both provided with a first temperature sensor, a third air pump is fixedly arranged in the inner cavity of the cold storage chamber, two ends of the third air pump are respectively and fixedly connected with a third air exhaust pipe, one end of one third air exhaust pipe extends to the inner cavity of the test chamber and is connected with the air inlet box, a third one-way valve is arranged in the middle of one third air exhaust pipe, one end of the other third air exhaust pipe is connected with the cold storage air bag, a fourth air exhaust pump is fixedly arranged in the inner cavity of the cold storage chamber, two ends of the fourth air exhaust pump are respectively and fixedly connected with a fourth air exhaust pipe, one end of one fourth air exhaust pipe extends to the inner cavity of the test chamber and is connected with the air exhaust box, and the middle part of one fourth exhaust tube is provided with a fourth one-way valve, and one end of the other fourth exhaust tube is connected with the cold air storage airbag.

Optionally, a water storage tank is arranged inside the test box, a heating device is arranged inside the test box, the output end of the heating device is connected with the hot air storage airbag, a refrigerating device is arranged inside the test box, and the output end of the refrigerating device is connected with the cold air storage airbag.

Optionally, a servo motor is arranged at the top of the inner cavity of the cold storage chamber, an output shaft of the servo motor is fixedly connected with one end of the transmission rod, a vacuum pump is fixedly installed in the inner cavity of the cold storage chamber, exhaust copper pipes are fixedly connected to two ends of the vacuum pump respectively, one end of each exhaust copper pipe extends to the inner cavity of the test chamber, and the other end of each exhaust copper pipe penetrates through the inner cavity of the water storage tank and extends to the outside of the test chamber.

Optionally, the both sides at lifter plate top are provided with second temperature sensor, the fixed slot has been seted up to the top surface of lifter plate, place the platform's inside has been seted up and has been rotated the groove, place the platform's bottom surface has been seted up the activity groove, the inner chamber that rotates the groove rotates and is connected with the rotation post, the surface that rotates the post and the inner chamber that is located the rotation groove are provided with the rolling disc, the side fixedly connected with rotor plate of rolling disc, the inner chamber that the one end of rolling disc runs through the activity groove extends to the inner chamber of fixed slot, the outside that rotates the post is provided with the torsional spring, the one end of torsional spring is connected with the terminal surface of rolling disc, the other end of torsional spring is connected with the inner wall that rotates the groove, the one end of rotation post extends to place the platform's outside and fixedly connected with pull ring.

Optionally, the front of the test chamber and the outer part of the test chamber are hinged with a sealing door, and the front of the test chamber is provided with a control panel.

A motor controller testing method comprises the following steps:

s1: opening the sealing door, rotating the pull ring to enable the bottom end of the rotating plate to move to the inner cavity of the movable groove, removing the fixation between the placing platform and the lifting plate, pulling the pull ring to enable the placing platform to move to the outside of the inner cavity of the test room, placing a motor controller to be tested on the surface of the placing platform, pushing the placing platform to return to the inner cavity of the test room, enabling one end of the rotating plate to move to the inner cavity of the fixed groove again by utilizing the elasticity of the torsion spring to fix the placing platform and the lifting plate, and closing the sealing door;

s2: the heating device and the refrigerating device are controlled to be started through the control panel, so that the heating device charges hot air with the temperature required by the test into the inner cavity of the hot air storage air bag, the refrigerating device charges cold air with the temperature required by the test into the inner cavity of the cold air storage air bag, and the vacuum pump is controlled to be started to vacuumize the inner cavity of the test room;

s3: the servo motor and the third air pump are started, the chain wheel and the first gear are driven to rotate by the servo motor, the bidirectional screw shaft in the middle of the rotating shaft is driven to rotate by the chain wheel, the lifting plate drives the placing platform and the motor controller on the placing platform to reciprocate up and down, in addition, the fan blades are driven to rotate to generate wind power by the meshing between the first gear and the second gear, when the third air pump guides the cold air in the inner cavity of the cold air storage air bag into the inner cavity of the air inlet box through the third air exhaust pipe, the cold air enters the inner cavity of the test room from the air inlet cover, the rotating fan blades enable the cold air to be rapidly diffused to the inner cavity of the test room, and the motor controller which reciprocates up and down can be rapidly contacted with the cold air, so that the test that the motor controller runs in a low-temperature state is realized;

s4: then, starting a fourth air pump to quickly pump the cold air in the inner cavity of the test chamber back to the inner cavity of the cold air storage air bag through the air exhaust cover, the air exhaust box and the fourth air exhaust pipe, and starting the first air pump to quickly guide the hot air in the inner cavity of the hot air storage air bag into the inner cavity of the air inlet box through the first air exhaust pipe and enter the inner cavity of the test chamber from the air inlet cover, so that the test of the running of the motor controller during the quick low-temperature and high-temperature transition is realized, wherein the motor controller generates peculiar smell smoke at a high temperature state with probability;

s5: after the motor controller is tested for a period of time in a high-temperature state, starting a second air pump to pump hot air in the inner cavity of the test room into the inner cavity of the peculiar smell purification box, purifying peculiar smell smoke mixed in the hot air through activated carbon purification cotton in the inner cavity of the peculiar smell purification box, recycling the purified hot air from the air duct to the inner cavity of the hot air storage air bag, then starting a third air pump again to inject cold air into the inner cavity of the test room, and thus repeatedly testing the performance of the motor controller under rapid temperature change;

s6: after the test is completed, hot air is filled into the inner cavity of the test chamber, the vacuum pump is started to discharge the hot air in the inner cavity of the test chamber through the exhaust copper pipe, meanwhile, the hot air circulating in the inner cavity of the exhaust copper pipe heats water in the inner cavity of the water storage tank, after the hot air is completely discharged, the sealing door is opened to take down the motor controller, and finally, the third air pump is started to introduce the cold air in the inner cavity of the cold air storage air bag into the inner cavity of the test chamber, so that the cold air is diffused into the air.

The invention provides a quick temperature change test box for a motor controller test and a test method thereof, and the quick temperature change test box has the following beneficial effects:

1. when the motor controller is subjected to a rapid temperature change test, the servo motor drives the transmission rod to rotate, the rotating shaft and the bidirectional screw shaft rotate through transmission between the chain wheel and the chain, the lifting plate and the motor controller are driven to reciprocate up and down, the contact efficiency of high-temperature and low-temperature gas and the motor controller is improved, the quality of the rapid temperature change test of the motor controller is improved, in addition, the rotating of the transmission rod drives the first gear to rotate, the fan blades are driven to rotate through meshing transmission of the first gear and the second gear, when cold air or hot air is filled into an inner cavity of a test chamber, the cold air or the hot air is quickly and uniformly filled into the inner cavity of the test chamber through rotation of the fan blades, and the temperature conversion speed of the rapid temperature change test chamber is improved.

2. According to the rapid temperature change test box for the motor controller test and the test method thereof, the motor controller can generate odor smoke at a high temperature state, when the motor controller generates smoke in a test room, in the process that hot air in the inner cavity of the test room is pumped back to the hot air storage air bag by the second air pump, the active carbon purification cotton in the inner cavity of the odor purification box is used for purifying the odor smoke mixed in the hot air, and the pollution to air caused by the discharge of the hot air with the odor smoke in the final stage is avoided.

3. This quick temperature change proof box for motor controller test and test method thereof stores gasbag and air conditioning through steam and stores the gasbag and circulate steam and air conditioning and retrieve to be used for high low temperature to change fast, in addition when experimental completion back, discharge steam from exhaust copper pipe through the vacuum pump, heat through exhaust copper pipe inner chamber circulation steam heats the water of catch basin inner chamber, hot water can be used to the staff usefulness of washing one's face and rinsing one's mouth, has avoided thermal waste.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a schematic structural diagram of the front side of the present invention;

FIG. 3 is a schematic view of the interior of the trough of the present invention;

FIG. 4 is a schematic view of the structure of the rotating plate of the present invention;

FIG. 5 is a schematic cross-sectional view of a placement platform of the present invention;

FIG. 6 is a schematic cross-sectional view of the odor purification cartridge of the present invention;

FIG. 7 is an enlarged schematic view of the invention at A in FIG. 1;

FIG. 8 is an enlarged view of the point B in FIG. 1.

In the figure: 1. a test chamber; 2. a laboratory; 3. a heat storage chamber; 4. a cold storage chamber; 5. a heating device; 6. a refrigeration device; 7. a hot gas storage bladder; 8. a cold air storage bladder; 9. a first air pump; 10. a second air pump; 11. a third air pump; 12. a fourth air pump; 13. a first exhaust tube; 14. a second extraction tube; 15. a third exhaust tube; 16. a fourth exhaust tube; 17. a first check valve; 18. a second one-way valve; 19. a third check valve; 20. a fourth check valve; 21. a peculiar smell purifying box; 22. an air duct; 23. activated carbon purified cotton; 24. a first temperature sensor; 25. a control panel; 26. a servo motor; 27. a transmission rod; 28. an air extraction box; 29. an air extraction hood; 30. an air intake box; 31. an air intake hood; 32. a bidirectional screw shaft; 33. a vacuum pump; 34. a water storage tank; 35. an exhaust copper pipe; 36. a sealing door; 37. a rotating shaft; 38. placing a platform; 39. a lifting plate; 40. a rotating groove; 41. rotating the column; 42. a torsion spring; 43. rotating the disc; 44. a movable groove; 45. a rotating plate; 46. fixing grooves; 47. a pull ring; 48. a support; 49. air holes are formed; 50. a slide rail; 51. a ventilation groove; 52. a second temperature sensor; 53. a material changing door; 54. a second transmission groove; 55. a rotating shaft; 56. a fan blade; 57. a second gear; 58. a first gear; 59. a first transmission groove; 60. a chain; 61. and a sprocket.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1, 5, 7 and 8, the present invention provides a technical solution: a rapid temperature change test box for a motor controller test comprises a test box 1 and a chain 60, wherein a test chamber 2 is arranged in the test box 1, an inner cavity of the test chamber 2 has a heat preservation function and avoids rapid temperature loss, the inner cavity of the test chamber 2 is rotatably connected with two rotating shafts 37, two-way screw shafts 32 are respectively arranged in the middle of the two rotating shafts 37, lifting plates 39 are sleeved on the two-way screw shafts 32 in a threaded manner, ventilation grooves 51 are formed in the middle of the lifting plates 39, two supports 48 are arranged at the top of the lifting plates 39, slide rails 50 are respectively and fixedly arranged on the inner sides of the two supports 48, a placing platform 38 is arranged on the inner sides of the two slide rails 50, a plurality of ventilation holes 49 are formed in the surface of the placing platform 38, a first transmission groove 59 is formed in the test box 1, one ends of the two rotating shafts 37 extend to the inner cavity of the first transmission groove 59 and are respectively and fixedly sleeved with chain wheels 61, the inner cavity of laboratory 2 rotates and is connected with transfer line 27, the fixed cover of the inner cavity that one end of transfer line 27 extends to first transmission groove 59 has other sprocket 61, three sprocket 61 passes through chain 60 transmission and connects, second transmission groove 54 has been seted up to test box 1's inside, the fixed cover of the inner cavity that one end of transfer line 27 extends to second transmission groove 54 has first gear 58, the inner cavity of second transmission groove 54 rotates and is connected with pivot 55, the side of pivot 55 just is located the fixed cover of the inner cavity of second transmission groove 54 and has been connected with second gear 57, second gear 57 and first gear 58 intermeshing, the bottom of pivot 55 extends to the inner cavity of laboratory 2, the side of pivot 55 bottom is provided with a plurality of flabellum 56.

Referring to fig. 1 and 2, an air suction box 28 is disposed on one side of an inner cavity of the test chamber 2, a plurality of air suction hoods 29 are disposed on a side surface of the air suction box 28, an air inlet box 30 is disposed on the other side of the inner cavity of the test chamber 2, and an air inlet hood 31 is disposed on a side surface of the air inlet box 30.

Referring to fig. 1 and 6, a heat storage chamber 3 is formed inside a test chamber 1, a hot air storage airbag 7 is disposed in an inner cavity of the heat storage chamber 3, the hot air storage airbag 7 is in a vacuum state in an initial state, the hot air storage airbag 7 has a heat preservation function, an odor purification box 21 is disposed in the inner cavity of the heat storage chamber 3, one side of the odor purification box 21 extends to the outside of the test chamber 1 and is hinged with a material changing door 53, activated carbon purification cotton 23 is disposed in the inner cavity of the odor purification box 21, the other side of the odor purification box 21 is connected with an air duct 22, one end of the air duct 22 is connected with the hot air storage airbag 7, a first air pump 9 is fixedly mounted in the inner cavity of the heat storage chamber 3, the first air pump 9 is used for pumping out hot air in the inner cavity of the hot air storage airbag 7, first air pumping pipes 13 are fixedly connected to two ends of the first air pump 9, one end of the first air pumping pipe 13 extends to the inner cavity of the test chamber 2 and is connected with an air inlet box 30, the middle part of one first exhaust tube 13 is provided with a first one-way valve 17, the first one-way valve 17 only allows hot air in the inner cavity of the hot air storage air bag 7 to enter the inner cavity of the air inlet box 30, the hot air is not allowed to flow reversely, one end of the other first exhaust tube 13 is connected with the hot air storage air bag 7, the inner cavity of the heat storage chamber 3 is fixedly provided with a second exhaust pump 10, the second exhaust pump 10 is used for pumping hot air in the inner cavity of the test chamber 2 back to the inner cavity of the hot air storage air bag 7, two ends of the second exhaust pump 10 are respectively and fixedly connected with second exhaust tubes 14, one end of one second exhaust tube 14 extends to the inner cavity of the test chamber 2 and is connected with an exhaust box 28, the middle part of one second exhaust tube 14 is provided with a second one-way valve 18, the second one-way valve 18 only allows hot air in the inner cavity of the test chamber 2 to return to the inner cavity of the hot air storage air bag 7 and does not allow the hot air to flow reversely, and one end of the other second exhaust tube 14 extends to the inner cavity of the peculiar smell purification box 21.

Referring to fig. 1, a cold storage chamber 4 is formed in a test chamber 1, a cold storage air bag 8 is disposed in an inner cavity of the cold storage chamber 4, the cold storage air bag 8 is in a vacuum state in an initial state, the cold storage air bag 8 has a heat preservation function, a first temperature sensor 24 is disposed in each of the cold storage air bag 8 and the hot storage air bag 7, a third air pump 11 is fixedly mounted in the inner cavity of the cold storage chamber 4, the third air pump 11 is used for pumping out cold air in the inner cavity of the cold storage air bag 8, third air pipes 15 are fixedly connected to two ends of the third air pump 11, one end of each third air pipe 15 extends to the inner cavity of the test chamber 2 and is connected to an air inlet box 30, a third check valve 19 is disposed in the middle of each third air pipe 15, and only the cold air in the inner cavity of the cold storage air bag 8 is allowed to enter the inner cavity of the air inlet box 30 by the third check valve 19, the cold air is not allowed to flow reversely, one end of the other third air exhaust pipe 15 is connected with the cold air storage airbag 8, a fourth air exhaust pump 12 is fixedly installed in the inner cavity of the cold air storage chamber 4, the fourth air exhaust pump 12 is used for exhausting the cold air in the inner cavity of the test chamber 2 back to the inner cavity of the cold air storage airbag 8, two ends of the fourth air exhaust pump 12 are respectively and fixedly connected with the fourth air exhaust pipe 16, one end of one fourth air exhaust pipe 16 extends to the inner cavity of the test chamber 2 and is connected with an air exhaust box 28, a fourth one-way valve 20 is arranged in the middle of one fourth air exhaust pipe 16, the fourth one-way valve 20 only allows the cold air in the inner cavity of the test chamber 2 to return to the inner cavity of the cold air storage airbag 8, the cold air is not allowed to flow reversely, and one end of the other fourth air exhaust pipe 16 is connected with the cold air storage airbag 8.

Referring to fig. 1, a water storage tank 34 is arranged inside a test box 1, water is arranged in an inner cavity of the water storage tank 34, a hole plugging plug is arranged on a side surface of the test box 1, one end of the hole plugging plug extends to the inner cavity of the water storage tank 34 and is used for adding the water in the inner cavity of the water storage tank 34, a faucet is arranged on the side surface of the test box 1 and is used for discharging the water in the inner cavity of the water storage tank 34, a heating device 5 is arranged inside the test box 1, an output end of the heating device 5 is connected with a hot air storage airbag 7, a refrigerating device 6 is arranged inside the test box 1, and an output end of the refrigerating device 6 is connected with a cold air storage airbag 8.

Referring to fig. 1, a servo motor 26 is disposed at the top of the inner cavity of the cold storage chamber 4, an output shaft of the servo motor 26 is fixedly connected with one end of the transmission rod 27, a vacuum pump 33 is fixedly mounted in the inner cavity of the cold storage chamber 4, two ends of the vacuum pump 33 are respectively and fixedly connected with exhaust copper pipes 35, one end of one exhaust copper pipe 35 extends to the inner cavity of the test chamber 2, one end of the other exhaust copper pipe 35 extends to the outside of the test box 1 through the inner cavity of the water storage tank 34, and water in the inner cavity of the water storage tank 34 is heated by hot air in the exhaust copper pipes 35, so that the water in the inner cavity of the water storage tank 34 is heated, and waste of heat is avoided.

Referring to fig. 3, 4 and 5, wherein two sides of the top of the lifting plate 39 are provided with second temperature sensors 52, the temperature of the inner cavity of the laboratory 2 is detected by the second temperature sensors 52, the top surface of the lifting plate 39 is provided with a fixed groove 46, the interior of the placing platform 38 is provided with a rotating groove 40, the bottom surface of the placing platform 38 is provided with a movable groove 44, the inner cavity of the rotating groove 40 is rotatably connected with a rotating column 41, the surface of the rotating column 41 and the inner cavity of the rotating groove 40 are provided with a rotating disc 43, the side surface of the rotating disc 43 is fixedly connected with a rotating plate 45, one end of the rotating plate 45 penetrates through the inner cavity of the movable groove 44 and extends to the inner cavity of the fixed groove 46, the outer side of the rotating column 41 is provided with a torsion spring 42, one end of the torsion spring 42 is connected with the end surface of the rotating disc 43, the other end of the torsion spring 42 is connected with the inner wall of the rotating groove 40, one end of the rotating column 41 extends to the outer part of the placing platform 38 and is fixedly connected with a pull ring 47, the position relation between the placing platform 38 and the lifting plate 39 is fixed through the matching of the rotating plate 45 and the fixing groove 46, in addition, when the torsion spring 42 is in an original state, one end of the rotating plate 45 is just located in an inner cavity of the fixing groove 46, when the placing platform 38 needs to be pulled, the rotating pull ring 47 is rotated to drive the rotating column 41 and the rotating disc 43 to rotate, so that one end of the rotating plate 45 is rotated to an inner cavity of the movable groove 44 from the inner cavity of the fixing groove 46, meanwhile, the torsion spring 42 is compressed to generate elastic force, further, the fixing relation between the placing platform 38 and the lifting plate 39 is relieved, when the placing platform needs to be fixed again, the rotating plate 45 is moved to the upper portion of the fixing groove 46, the rotating column 41, the rotating disc 43 and the rotating plate 45 are driven to rotate by the elastic force of the torsion spring 42, and one end of the rotating plate 45 enters the inner cavity of the fixing groove 46 again.

Referring to fig. 2, a sealing door 36 is hinged to the front of the test chamber 1 and located outside the test chamber 2, a control panel 25 is disposed on the front of the test chamber 1, and the heating device 5, the cooling device 6, the first air pump 9, the second air pump 10, the third air pump 11, the fourth air pump 12, the first temperature sensor 24, the servo motor 26, and the vacuum pump 33 are controlled by the control panel 25.

A motor controller testing method comprises the following steps:

s1: opening the sealing door 36, rotating the pull ring 47 to move the bottom end of the rotating plate 45 to the inner cavity of the movable groove 44, releasing the fixation between the placing platform 38 and the lifting plate 39, pulling the pull ring 47 to move the placing platform 38 to the outside of the inner cavity of the test chamber 2, placing the motor controller to be tested on the surface of the placing platform 38, pushing the placing platform 38 to return to the inner cavity of the test chamber 2, utilizing the elasticity of the torsion spring 42 to enable one end of the rotating plate 45 to move to the inner cavity of the fixed groove 46 again to fix the place platform 38 and the lifting plate 39, and closing the sealing door 36;

s2: the heating device 5 and the refrigerating device 6 are controlled to be started through the control panel 25, so that the heating device 5 charges hot air with the temperature required by the test into the inner cavity of the hot air storage air bag 7, the refrigerating device 6 charges cold air with the temperature required by the test into the inner cavity of the cold air storage air bag 8, and meanwhile, the vacuum pump 33 is controlled to be started to pump the inner cavity of the test chamber 2 into a vacuum state;

s3: the servo motor 26 and the third air pump 11 are started, the chain wheel 61 and the first gear 58 are driven to rotate by the servo motor 26, the bidirectional screw shaft 32 in the middle of the rotating shaft 37 is driven to rotate by the chain wheel 61, the placing platform 38 and the motor controller on the placing platform 38 are driven to reciprocate up and down by the lifting plate 39, in addition, the fan blades 56 are driven to rotate to generate wind power by the meshing between the first gear 58 and the second gear 57, when the third air pump 11 guides the cold air in the inner cavity of the cold air storage air bag 8 into the inner cavity of the air inlet box 30 through the third air suction pipe 15, the cold air enters the inner cavity of the test chamber 2 from the air inlet cover 31, the cold air is quickly diffused to the inner cavity of the test chamber 2 through the rotating fan blades 56, and the motor controller which reciprocates up and down can be quickly contacted with the cold air, so that the test of the motor controller in a low-temperature state is realized;

s4: then, starting a fourth air pump 12 to quickly pump the cold air in the inner cavity of the test chamber 2 back to the inner cavity of the cold air storage air bag 8 through an air pumping cover 29, an air pumping box 28 and a fourth air pumping pipe 16, and starting a first air pump 9 to quickly guide the hot air in the inner cavity of the hot air storage air bag 7 into the inner cavity of an air inlet box 30 through a first air pumping pipe 13 and enter the inner cavity of the test chamber 2 from an air inlet cover 31 to realize the test of the running of the motor controller during the quick low-temperature and high-temperature transition, wherein the motor controller generates peculiar smell smoke at a high temperature state with probability;

s5: after the motor controller is tested for a period of time in a high-temperature state, starting the second air pump 10 to pump hot air in the inner cavity of the test room 2 into the inner cavity of the peculiar smell purification box 21, purifying peculiar smell smoke mixed in the hot air through activated carbon purification cotton 23 in the inner cavity of the peculiar smell purification box 21, recycling the purified hot air from the air duct 22 to the inner cavity of the hot air storage air bag 7, then starting the third air pump 11 again to inject cold air into the inner cavity of the test room 2, and thus repeatedly testing the performance of the motor controller under rapid temperature change;

s6: after the test is finished, hot air is filled into the inner cavity of the test chamber 2, the vacuum pump 33 is started to discharge the hot air in the inner cavity of the test chamber 2 through the exhaust copper pipe 35, meanwhile, the hot air circulating in the inner cavity of the exhaust copper pipe 35 heats water in the inner cavity of the water storage tank 34, after the hot air is completely discharged, the sealing door 36 is opened to take down the motor controller, and finally, the third air suction pump 11 is started to introduce the cold air in the inner cavity of the cold air storage air bag 8 into the inner cavity of the test chamber 2, so that the cold air is diffused into the air.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.