Kitchen appliance motor stator winding test system

Abstract

The invention discloses a kitchen appliance motor stator winding test system, and belongs to the technical field of motor detection, the kitchen appliance motor stator winding test system comprises a test board and a simulation mounting seat used for assembling a stator coil to be detected, a rotor component is arranged in the simulation mounting seat, and the rotor component is fixedly connected with a plurality of output cross bars through simulation shafts; the top end of the testboard is fixedly connected with a cover ring through multiple rotating shafts. Through the arrangement of the hindering air bag and the electric control sliding seat, the hindering air bag can be used for simulating the condition that driving of a stator coil in the meat grinder motor is hindered and blocked, various conditions encountered in the actual use of the meat grinder motor are better fit, the subsequent detection result is more accurate and reliable, and meanwhile through the arrangement of the magnetic pointer and the electromagnetic plate, the detection accuracy is improved. Different currents can be introduced into the electromagnetic plate to generate different magnetic force constraints on the magnetic pointer, so that the magnetic force change conditions and the magnetic field direction change conditions of the stator coil under various simulation conditions can be detected.

Description

Technical Field

[0001] The present invention relates to the technical field of motor detection, and particularly to a test system for the stator winding of a motor of a kitchen appliance. Background Art

[0002] A household meat grinder is an electric kitchen tool mainly used for grinding meat and other ingredients such as scallions, garlic, spices, etc., to meet the filling requirements for making different delicacies such as dumplings, buns, meatballs, and meat patties.

[0003] When a household meat grinder is in use, if the meat chunks put in are too large, the meat grinder may not operate properly due to excessive load, or even cause the meat grinder to reverse. At the same time, when there is fascia in the meat chunks, the fascia will be cut and wound around the blade or the mixing barrel, resulting in blockage and also easily causing the meat grinder to reverse. When the motor of the meat grinder suddenly reverses under normal working conditions, it will cause the current direction in the stator winding to change. The current passes through the stator winding to generate a magnetic field, which drives the rotor to move. The change in the current direction will also cause the current direction in the stator winding to change, which may affect the output power of the motor and even damage the motor. In addition, the reverse rotation due to obstruction will also affect the electromagnetic field and the performance of the motor. The back electromotive force has a significant impact on the electromagnetic field. Excessive values may cause magnetic flux fluctuations, resulting in vibrations and affecting the motor performance. Moreover, a household meat grinder generally uses a motor with a relatively strong driving force, so it will quickly heat up during use, making the copper wire on the stator winding in a high-temperature state, increasing the overall resistance of the winding copper wire, and affecting the magnetic field generated by the stator winding. Therefore, a test system for the stator winding of a motor of a kitchen appliance is proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that when the motor of a meat grinder suddenly reverses under normal working conditions, it will cause the current direction in the stator winding to change. The current passes through the stator winding to generate a magnetic field, which drives the rotor to move. The change in the current direction will also cause the current direction in the stator winding to change, which may affect the output power of the motor and even damage the motor, and to propose a test system for the stator winding of a motor of a kitchen appliance.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A kitchen appliance motor stator winding testing system, comprising a test bench and a simulation mounting seat for assembling a stator coil to be detected. A rotor member is arranged inside the simulation mounting seat. The rotor member is fixedly connected with a plurality of output cross bars through a simulation shaft. The top end of the test bench is fixedly connected with a cover ring through a plurality of rotating shafts. The outer side walls of the plurality of rotating shafts are all rotatably connected with blocking gears, and the plurality of blocking gears do not mesh with each other. The inner side wall of the bottom end of the cover ring is fixedly connected with an annular guide rail. The annular guide rail is connected with two control rotating seats through an electric control sliding seat. The control rotating seat is connected with a gradually increasing resistance component for simulating the rotation obstruction of the output cross bar.

[0007] Two fixed limiting groove plates are fixedly connected to the inner side wall of the simulation mounting seat below the stator coil. The fixed limiting groove plates are respectively connected with an outer supporting limiting plate and a sliding limiting groove plate through a horizontal rod. The two outer supporting limiting plates are connected through two pin shafts. An adjusting component for testing the winding state on the stator coil is arranged on the two pin shafts. Two symmetric magnetic pointers are arranged below the adjusting component.

[0008] Preferably, the top end of the cover ring is fixedly connected with the outer side wall of the simulation mounting seat through a plurality of hydraulic rods. The top end of the test bench is rotatably connected with a control rotating ring. The top end of the control rotating ring is fixedly connected with a control gear ring. The control gear ring meshes with the plurality of blocking gears respectively.

[0009] Preferably, the annular guide rail is slidably connected with the electric control sliding seat. The bottom end of the electric control sliding seat is fixedly connected with a sector gear. The sector gear meshes with the blocking gear. The number of the electric control sliding seats is the same as that of the output cross bars. The output cross bar is made of steel material, and the top of the electric control sliding seat is made of magnet material.

[0010] Preferably, the gradually increasing resistance component is composed of two U-shaped plates and two blocking air bags. The top end of the electric control sliding seat is rotatably connected with a turning shaft through two control rotating seats. The two ends of the turning shaft are respectively fixedly connected with the two U-shaped plates through two fixing plates.

[0011] Preferably, the two ends of the blocking air bag are respectively fixedly connected with the inner side wall of the U-shaped plate. A micro air pump for controlling the air pressure inside the blocking air bag is fixedly connected to the top end of the U-shaped plate.

[0012] Preferably, the inner side wall of the simulation mounting seat is fixedly connected with the fixed limiting groove plate. The fixed limiting groove plate is fixedly connected with one end of the horizontal rod. A limiting spring is sleeved on the outer side wall of the other end of the horizontal rod. The limiting spring is fixedly connected with the sliding limiting groove plate. The inner side wall of the sliding limiting groove plate is slidably connected with the horizontal rod. The horizontal rod is fixedly connected with the outer supporting limiting plate. The outer supporting limiting plate is rotatably connected with the end of the pin shaft.

[0013] Preferably, the adjustment component is composed of a main gear and two sub-gears. The outer support limiting plate is connected to the main gear through an adjustment motor. The main gear meshes with one of the sub-gears, and the two sub-gears mesh with each other. The two sub-gears are respectively fixedly connected to two pin shafts.

[0014] Preferably, a conductive contact rod is fixedly connected to the outer side wall of the pin shaft, and a bent guide rod is fixedly connected to the outer side wall of the pin shaft. The two conductive contact rods and the two bent guide rods are arranged symmetrically obliquely. A resistance meter is arranged between the two bent guide rods.

[0015] Preferably, the resistance meter is fixedly connected to the side walls of the two resistance meters through two right-angle rods respectively. The outer side wall of the right-angle rod is rotationally connected to a magnetic pointer through a fixed seat. Electromagnetic plates are fixedly connected to both side walls of the fixed seat, and laser sensors are arranged on the electromagnetic plates.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. Through the setting of the blocking airbag and the electric control sliding seat, this solution can use the blocking airbag to simulate the situation of the stator coil drive being blocked in the meat grinder motor, which is more in line with various situations encountered in the actual use of the meat grinder motor, making the subsequent detection results more accurate and reliable.

[0018] 2. Through the setting of the adjustment component and the resistance meter, this solution can use the synchronous rotation change of the two sub-gears to test the copper wire resistance on the stator coil under different use states, and then judge whether the use state of the copper wire winding on the stator coil is normal, ensuring that the stator coil to be assembled is qualified.

[0019] 3. Through the setting of the magnetic pointer and the electromagnetic plate, this solution can use different magnitudes of current passed through the electromagnetic plate to generate different magnitudes of magnetic force constraints on the magnetic pointer to detect the change of the magnetic force magnitude and the change of the magnetic field direction when the stator coil is used under various simulated conditions, making the detection more comprehensive and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional structural schematic diagram of a stator winding test system for a kitchen appliance motor proposed by the present invention;

[0021] Figure 2 is an assembly drawing of a stator winding test system for a kitchen appliance motor proposed by the present invention;

[0022] Figure 3 is Figure 2 the enlarged view of part A in

[0023] Figure 4Schematic diagram of the positions of multiple electric control sliders in a test system for the stator winding of a kitchen appliance motor proposed by the present invention;

[0024] Figure 5 Schematic diagram of the positions of two blocking air bags in a test system for the stator winding of a kitchen appliance motor proposed by the present invention;

[0025] Figure 6 Schematic diagram of the positions of two outer support limit plates in a test system for the stator winding of a kitchen appliance motor proposed by the present invention;

[0026] Figure 7 Schematic diagram of the adjustment assembly in a test system for the stator winding of a kitchen appliance motor proposed by the present invention;

[0027] Figure 8 Schematic diagram of the positions of two bent guide rods in a test system for the stator winding of a kitchen appliance motor proposed by the present invention;

[0028] Figure 9 Schematic diagram of the position of the electromagnetic plate in a test system for the stator winding of a kitchen appliance motor proposed by the present invention.

[0029] In the figure: 1, test bench; 2, simulation mounting seat; 3, stator coil; 4, cover ring; 5, rotor component; 6, simulation shaft; 7, output cross bar; 8, hydraulic rod; 9, control rotating ring; 10, control gear ring; 11, blocking gear; 12, annular guide rail; 13, sector gear; 14, electric control slider; 15, control rotating seat; 16, U-shaped plate; 17, blocking air bag; 18, micro air pump; 19, fixed limit groove plate; 20, horizontal bar; 21, outer support limit plate; 22, sliding limit groove plate; 23, limit spring; 24, adjustment motor; 25, main gear; 26, sub-gear; 27, conductive contact rod; 28, bent guide rod; 29, resistance meter; 30, fixed seat; 31, magnetic pointer; 32, electromagnetic plate; 33, laser sensor. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0033] Example, refer to Figures 1 to 9 , a test system for the stator winding of a kitchen appliance motor, including a test bench 1 and a simulation mounting seat 2 for assembling the stator coil 3 to be detected. A rotor member 5 is arranged in the simulation mounting seat 2. The rotor member 5 is fixedly connected with a plurality of output crossbars 7 through a simulation shaft 6. The top end of the test bench 1 is fixedly connected with a cover ring 4 through a plurality of rotating shafts. The outer side walls of the plurality of rotating shafts are all rotatably connected with blocking gears 11, and the plurality of blocking gears 11 are not meshed with each other. The inner side wall of the bottom end of the cover ring 4 is fixedly connected with an annular guide rail 12. The annular guide rail 12 is connected with two control turntables 15 through an electric control sliding seat 14. The control turntable 15 is connected with a gradually increasing resistance component for simulating the rotation obstruction of the output crossbar 7;

[0034] Furthermore, the top end of the cover ring 4 is fixedly connected with the outer side wall of the simulation mounting seat 2 through a plurality of hydraulic rods 8. The top end of the test bench 1 is rotatably connected with a control rotating ring 9. The top end of the control rotating ring 9 is fixedly connected with a control gear ring 10. The control gear ring 10 is respectively meshed with the plurality of blocking gears 11. The annular guide rail 12 is slidably connected with the electric control sliding seat 14. The bottom end of the electric control sliding seat 14 is fixedly connected with a sector gear 13. The sector gear 13 is meshed with the blocking gear 11. The number of the electric control sliding seats 14 is the same as that of the output crossbars 7. The output crossbar 7 is made of steel, and the top of the electric control sliding seat 14 is made of magnet material. The gradually increasing resistance component is composed of two U-shaped plates 16 and two blocking air bags 17. The top end of the electric control sliding seat 14 is rotatably connected with a turning shaft through two control turntables 15. Both ends of the turning shaft are respectively fixedly connected with the two U-shaped plates 16 through two fixing plates. Both ends of the blocking air bag 17 are respectively fixedly connected with the inner side walls of the U-shaped plates 16. The top end of the U-shaped plate 16 is fixedly connected with a micro air pump 18 for controlling the air pressure inside the blocking air bag 17;

[0035] It should be noted that: one ends of multiple stator coils 3 to be detected are sequentially placed into the fixed limit groove plate 19 on the simulation mounting base 2. Subsequently, the sliding limit groove plate 22 is pushed to compress the limit spring 23. Then, the outer support limit plate 21 is used to support the stator coil 3, and the other end of the stator coil 3 is placed into the sliding limit groove plate 22. The sliding limit groove plate 22 presses and limits the stator coil 3 through the elastic force of the limit spring 23. Subsequently, the stator coil 3 is connected to an external power supply;

[0036] After the installation of the stator coil 3 to be detected is completed, the simulation mounting base 2 is moved downward to a preset position by the hydraulic rod 8, so that the output cross bar 7 is located above the electric control sliding seat 14. The rotor member 5 is toggled to rotate the output cross bar 7 to a position directly above the electric control sliding seat 14 and be magnetically attracted. Subsequently, the control turntable 15 is started to rotate the U-shaped plate 16 downward to a horizontal position, so that the blocking air bag 17 in the U-shaped plate 16 is located on one side of the output cross bar 7. Then, the energization condition during the use of the simulation stator coil 3 is simulated, and the rotor member 5 is made to drive the output cross bar 7 to keep rotating. Through the flexible blocking of the blocking air bag 17, the situation where the shaft structure driven by the stator coil 3 in the meat grinder motor rotates and gets blocked is simulated, and the internal air pressure of the blocking air bag 17 is controlled by the micro air pump 18 to simulate the blocking conditions of different densities. At the same time, the control start control ring 9 is controlled to drive the control gear ring 10 to rotate, and the control gear ring 10 will drive a plurality of blocking gears 11 to rotate together. The rotation of the blocking gears 11 will drive the engaged sector teeth 13 to make a small offset (equivalent to the rack offsetting in the same direction on the gear), simulating the state of slow agitation of the meat grinder under the blocked condition, and observing the use state of the stator coil 3 during this process. Subsequently, the control gear ring 10 is freely rotated by the control ring 9, and after the sector teeth 13 are released from the limit, they can move freely. The electric control sliding seat 14 is slowly moved forward and backward on the annular guide rail 12 to simulate the state of the output cross bar 7 rotating slowly forward and reversing;

[0037] The benefits based on the above are as follows: In this way, the blocking air bag 17 can be used to simulate the situation where the stator coil 3 in the meat grinder motor is blocked by driving resistance, which is more in line with various situations encountered in the actual use of the meat grinder motor, making the subsequent detection results more accurate and reliable;

[0038] Two fixed limit groove plates 19 are fixedly connected to the inner side wall of the simulation mounting base 2 below the stator coil 3. The fixed limit groove plates 19 are respectively connected with an outer support limit plate 21 and a sliding limit groove plate 22 through horizontal rods 20. The two outer support limit plates 21 are connected by two pin shafts, and adjustment components for testing the winding state on the stator coil 3 are arranged on the two pin shafts;

[0039] Furthermore, the inner wall of the simulated mounting seat 2 is fixedly connected to the fixed limiting slot plate 19, the fixed limiting slot plate 19 is fixedly connected to one end of the horizontal rod 20, the outer wall of the other end of the horizontal rod 20 is sleeved with a limiting spring 23, the limiting spring 23 is fixedly connected to the sliding limiting slot plate 22, the inner wall of the sliding limiting slot plate 22 is slidably connected to the horizontal rod 20, the horizontal rod 20 is fixedly connected to the outer support limiting plate 21, the outer support limiting plate 21 is rotatably connected to the end of the pin shaft, and the adjustment component is composed of a main gear 25 and two The outer support limit plate 21 is connected to the main gear 25 through the adjustment motor 24. The main gear 25 is meshed with the auxiliary gear 26 on one side. The two auxiliary gears 26 are meshed with each other. The two auxiliary gears 26 are fixedly connected to two pins respectively. The outer wall of the pin is fixedly connected with a conductive contact rod 27. The outer wall of the pin is fixedly connected with a bent guide rod 28. The two conductive contact rods 27 and the two bent guide rods 28 are all arranged obliquely symmetrically. An ohmmeter 29 is arranged between the two bent guide rods 28.

[0040] It should be noted that: under the state of simulating various usage conditions of the stator coil 3, the adjustment motor 24 is started to drive the main gear 25 to rotate, and the rotation of the main gear 25 will drive the two sub-gears 26 to rotate in the opposite direction, so that the two sub-gears 26 can rotate inward synchronously, thereby driving the conductive contact rod 27 and the bent guide rod 28 to rotate inward, and the conductive contact rod 27 on one side rotates inward to overlap the copper wire at one end edge of the stator coil 3, and the conductive contact rod 27 on the other side rotates inward to overlap the copper wire at the other end edge of the stator coil 3, and the two bent guide rods 28 rotate and press against the resistance meter 29, and the circuit connection between the resistance meter 29 and the two bent guide rods 28 is connected, so that the resistance meter 29 can measure whether the resistance change of the copper wire on the stator coil 3 under different simulation conditions is normal;

[0041] The above advantages are: in this way, the copper wire resistance on the stator coil 3 under different use conditions can be tested by utilizing the synchronous rotation change of the two pinion gears 26, thereby judging whether the use condition of the copper wire winding on the stator coil 3 is normal, and ensuring that the stator coil 3 to be assembled is qualified;

[0042] Two mutually symmetrical magnetic pointers 31 are arranged below the adjustment component;

[0043] Furthermore, the resistance meter 29 is fixedly connected to the two side walls of the resistance meter 29 through two right-angle rods, and the outer side wall of the right-angle rod is rotatably connected to the magnetic pointer 31 through a fixing seat 30. The side walls at both ends of the fixing seat 30 are fixedly connected to an electromagnetic plate 32, and a laser sensor 33 is arranged on the electromagnetic plate 32;

[0044] It should be noted that during the energization and use of the stator coil 3, a magnetic field is continuously generated, and the direction of the magnetic field also changes synchronously. Then, the magnetic pointer 31 will continuously swing due to the change of the magnetic field. By detecting the magnetic pointer 31, the laser sensor 33 can know whether the changes of each magnetic field are synchronous. After passing a certain amount of current through the electromagnetic plate 32, the electromagnetic plate 32 will magnetically attract the magnetic pointer 31 above. By controlling the magnitude of the current, first maintain a relatively small magnetic attraction force, and let the stator coil 3 simulate under various conditions to see the change of the magnetic force generated by the stator coil 3. If a certain magnetic pointer 31 is magnetically attracted by the electromagnetic plate 32 and does not rotate, it means that the magnetic force generated by the stator coil 3 does not meet the standard. At the same time, if the magnetic pointer 31 stops after deflecting a certain angle, it means that the magnetic fields generated on both sides of the stator coil 3 are of different magnitudes, so that the magnetic forces received on both sides of the magnetic pointer 31 are inconsistent. These are judged by the laser sensor 33 detecting the magnetic pointer 31 from whether the magnetic pointer 31 can be continuously detected and the time interval for detecting the magnetic pointer 31;

[0045] Based on the above advantages: different magnitudes of current can be passed through the electromagnetic plate 32 to generate different magnitudes of magnetic force constraints on the magnetic pointer 31, so as to detect the change of the magnetic force magnitude and the change of the magnetic field direction of the stator coil 3 under various simulated conditions, making the detection more comprehensive and reliable;

[0046] When the present invention is in use, one ends of multiple stator coils 3 to be detected are sequentially placed into the fixed limit groove plate 19 on the simulated mounting seat 2. Then, the sliding limit groove plate 22 is pushed to compress the limit spring 23. Then, the outer support limit plate 21 is used to support the stator coil 3, and the other end of the stator coil 3 is placed into the sliding limit groove plate 22. The sliding limit groove plate 22 compresses and limits the stator coil 3 through the elastic force of the limit spring 23. Then, the stator coil 3 is connected to an external power supply;

[0047] After the stator coil 3 to be tested is installed, the hydraulic rod 8 is used to move the simulated mounting seat 2 downward to the preset position, so that the output cross bar 7 is located above the electric control slide 14, and the rotor component 5 is moved to rotate the output cross bar 7 to the position directly above the electric control slide 14 and be magnetically attracted, and then the control swivel 15 is started to rotate the U-shaped plate 16 downward to a horizontal position, so that the obstruction airbag 17 in the U-shaped plate 16 is located on one side of the output cross bar 7, and then the power-on condition of the stator coil 3 during use is simulated, so that the rotor component 5 drives the output cross bar 7 to keep rotating, and the flexible obstruction of the obstruction airbag 17 is used to simulate the rotation blockage of the shaft structure driven by the stator coil 3 in the meat grinder motor, and the micro air pump 18 is used to control the internal air pressure of the obstruction airbag 17 to simulate the blockage of different densities, and at the same time, the control start swivel 9 is controlled to drive the control When the control gear ring 10 rotates, the control gear ring 10 will respectively drive the multiple obstruction gears 11 to rotate together. The rotation of the obstruction gear 11 will drive the meshing sector teeth 13 to make a small offset (equivalent to the offset of the rack on the gear in the same direction), simulating the state of the meat grinder slowly stirring under the condition of blockage, and observing the use state of the stator coil 3 in this process. Subsequently, the control gear ring 10 is allowed to rotate freely by controlling the rotating ring 9, and the sector teeth 13 can move freely after the limit is cancelled. The electric control slide 14 is used to move slowly forward and backward on the annular guide rail 12 to simulate the state of the output cross bar 7 slowly rotating forward and reversing. In this way, the obstruction airbag 17 can be used to simulate the situation that the stator coil 3 in the meat grinder motor is blocked, which is more in line with various situations encountered in the actual use of the meat grinder motor, making the subsequent detection results more accurate and reliable;

[0048] Under the state of simulating various usage conditions of the stator coil 3, the adjustment motor 24 is started to drive the main gear 25 to rotate. The rotation of the main gear 25 will drive the two sub-gears 26 to rotate in the opposite direction, so that the two sub-gears 26 can rotate inward synchronously, thereby driving the conductive contact rod 27 and the bent guide rod 28 to rotate inward. The conductive contact rod 27 on one side rotates inward to overlap the copper wire at one end edge of the stator coil 3, and the conductive contact rod 27 on the other side rotates inward to overlap the copper wire at the other end edge of the stator coil 3. The two bent guide rods 28 rotate and press against the resistance meter 29. The circuit connection between the resistance meter 29 and the two bent guide rods 28 is connected, which will enable the resistance meter 29 to measure whether the resistance change of the copper wire on the stator coil 3 under different simulation conditions is normal. In this way, the synchronous rotation change of the two sub-gears 26 can be used to test the resistance of the copper wire on the stator coil 3 under different usage conditions, thereby judging whether the usage status of the copper wire winding on the stator coil 3 is normal, and ensuring that the stator coil 3 to be assembled is qualified.

[0049] During the energized use of the stator coil 3, a magnetic field is continuously generated, and the direction of the magnetic field is also in a state of synchronous change. Then, the magnetic pointer 31 will continuously swing due to the change of the magnetic field. By detecting the magnetic pointer 31, the laser sensor 33 can know whether the changes of each magnetic field are synchronous. After passing a certain amount of current through the electromagnetic plate 32, the electromagnetic plate 32 will magnetically attract the magnetic pointer 31 above. By controlling the current magnitude, first maintain a small magnetic attraction force, and let the stator coil 3 simulate under various conditions to see the change of the magnetic force magnitude generated by the stator coil 3. If a certain magnetic pointer 31 is magnetically attracted by the electromagnetic plate 32 and does not rotate, it means that the magnetic force generated by the stator coil 3 does not meet the standard. At the same time, if the magnetic pointer 31 stops after deflecting a certain angle, it means that magnetic fields of different magnitudes are generated on both sides of the stator coil 3, making the magnetic forces on both sides of the magnetic pointer 31 inconsistent. These detections of the magnetic pointer 31 by the laser sensor 33 are judged from whether the magnetic pointer 31 can be continuously detected and the time interval for detecting the magnetic pointer 31. In this way, different magnitudes of current can be passed through the electromagnetic plate 32 to generate different magnitudes of magnetic force constraints on the magnetic pointer 31, so as to detect the change of the magnetic force magnitude and the change of the magnetic field direction when the stator coil 3 is used under various simulation conditions, making the detection more comprehensive and reliable.

[0050] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A kitchen appliance motor stator winding test system, comprising a test bench (1) and a simulation mounting base (2) for assembling a stator coil (3) to be tested, characterized in that: A rotor component (5) is arranged in the simulation mounting seat (2), and the rotor component (5) is fixedly connected to a plurality of output cross bars (7) via a simulation shaft (6); a cover ring (4) is fixedly connected to the top of the test bench (1) via a plurality of rotating shafts, and the outer side walls of the plurality of rotating shafts are all rotatably connected to obstruction gears (11), and the plurality of obstruction gears (11) do not mesh with each other; an annular guide rail (12) is fixedly connected to the inner side wall of the bottom end of the cover ring (4), and the annular guide rail (12) is connected to two control rotating seats (15) via an electric control slide seat (14), and the control rotating seat (15) is connected to a gradual resistance component for simulating the output cross bar (7) being obstructed in rotation; The simulation mounting seat (2) is fixedly connected to two fixed limit slot plates (19) on the inner side wall below the stator coil (3); the fixed limit slot plates (19) are respectively connected to an outer support limit plate (21) and a sliding limit slot plate (22) via a horizontal rod (20); the two outer support limit plates (21) are connected via two pin shafts; the two pin shafts are provided with adjustment components for testing the winding state of the stator coil (3); and two mutually symmetrical magnetic pointers (31) are provided below the adjustment components.

2. A kitchen appliance motor stator winding test system according to claim 1, characterized in that: The top of the cover ring (4) is fixedly connected to the outer wall of the simulation mounting seat (2) via a plurality of hydraulic rods (8); the top of the test bench (1) is rotatably connected to a control swivel (9); the top of the control swivel (9) is fixedly connected to a control gear ring (10); and the control gear ring (10) is respectively meshed with a plurality of blocking gears (11).

3. A kitchen appliance motor stator winding test system according to claim 1, characterized in that: The annular guide rail (12) is slidably connected to the electric control slide (14); the bottom end of the electric control slide (14) is fixedly connected with a sector tooth (13); the sector tooth (13) is meshed with the blocking gear (11); the number of the electric control slide (14) and the output cross bar (7) is the same; the output cross bar (7) is made of steel; and the top of the electric control slide (14) is made of magnet material.

4. A kitchen appliance motor stator winding test system according to claim 1, characterized in that: The gradual resistance component is composed of two U-shaped plates (16) and two obstruction airbags (17). The top end of the electric control slide (14) is rotatably connected to a flip shaft through two control rotating seats (15). The two ends of the flip shaft are fixedly connected to the two U-shaped plates (16) through two fixing plates.

5. A kitchen appliance motor stator winding test system according to claim 4, characterized in that: The two ends of the obstruction airbag (17) are respectively fixedly connected to the inner side walls of the U-shaped plate (16), and the top end of the U-shaped plate (16) is fixedly connected to a micro air pump (18) for controlling the internal air pressure of the obstruction airbag (17).

6. A kitchen appliance motor stator winding test system according to claim 1, characterized in that: The inner side wall of the simulation mounting seat (2) is fixedly connected to the fixed limit slot plate (19), the fixed limit slot plate (19) is fixedly connected to one end of the horizontal rod (20), the outer side wall of the other end of the horizontal rod (20) is sleeved with a limit spring (23), the limit spring (23) is fixedly connected to the sliding limit slot plate (22), the inner side wall of the sliding limit slot plate (22) is slidably connected to the horizontal rod (20), the horizontal rod (20) is fixedly connected to the outer support limit plate (21), and the outer support limit plate (21) is rotatably connected to the end of the pin shaft.

7. A kitchen appliance motor stator winding test system according to claim 1, characterized in that: The adjustment assembly is composed of a main gear (25) and two sub-gears (26); the outer support plate (21) is connected to the main gear (25) through an adjustment motor (24); the main gear (25) is meshed with a sub-gear (26) on one side; the two sub-gears (26) are meshed; and the two sub-gears (26) are fixedly connected to two pins respectively.

8. A kitchen appliance motor stator winding test system according to claim 7, characterized in that: The outer wall of the pin shaft is fixedly connected with a conductive contact rod (27), and the outer wall of the pin shaft is fixedly connected with a bent guide rod (28). The two conductive contact rods (27) and the two bent guide rods (28) are arranged in an oblique symmetric manner, and an ohmmeter (29) is arranged between the two bent guide rods (28).

9. A kitchen appliance motor stator winding test system according to claim 8, characterized in that: The resistance meter (29) is fixedly connected to two side walls of the resistance meter (29) via two right-angle rods, respectively; the outer side walls of the right-angle rods are rotatably connected to a magnetic pointer (31) via a fixing seat (30); both end side walls of the fixing seat (30) are fixedly connected to electromagnetic plates (32); and a laser sensor (33) is provided on the electromagnetic plate (32).

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