Portable detector for new energy automobile motor

Abstract

The invention discloses a portable detector for a motor of a new energy automobile, which comprises a shell, and is characterized in that an inverter, a steady-current direct-current power supply, an angle gauge, a power analyzer, a motor controller, a switching power supply, an air pump, a two-position two-way electromagnetic valve and a control switch are integrally arranged in the shell, the angle adjusting module is used for adjusting the angle of a rotary transformer of the tested motor, the motor controller is used for controlling the tested motor to idle, and the power analyzer is used for assisting in measuring parameters such as voltage, current, frequency and power of the tested motor during idle running. According to the invention, a highly integrated design is adopted, and the system can be carried to multiple scenes for use; the new energy automobile motor can be conveniently idled, the running state and performance data of the tested motor can be checked, and the functions of adjusting the angle of a rotary transformer of the tested motor and testing the protection level of the motor are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of generator detection, and in particular to a portable detector for a new energy vehicle motor. Background Art

[0002] With the popularization and development of new energy vehicles, new energy vehicle motors have higher requirements in after-sales maintenance and fault diagnosis. At present, since the after-sales service site needs to move around, the service site is often in poor conditions and lacks relevant testing equipment. It is impossible to conduct comprehensive testing on energy vehicle motors, resulting in the inability to further determine the detailed condition of the tested motor, thus affecting the timeliness and quality of subsequent maintenance and repairs. Summary of the invention

[0003] In order to solve the above-mentioned problems of the prior art, the present invention provides a portable tester for new energy vehicle motors, which can respond quickly when the new energy vehicle motors need on-site inspection and maintenance and fault diagnosis, and can carry the equipment to the site to complete the motor detection work.

[0004] To achieve the above object, the present invention provides the following technical solutions: A portable tester for a new energy vehicle motor comprises a shell, wherein an inverter, a steady-current DC power supply, an angle meter, a power analyzer, a motor controller, a switching power supply, an air pump, a two-position two-way solenoid valve and a control switch are integrated inside the shell, wherein the steady-current DC power supply and the angle meter are used in combination to adjust the angle of a rotary transformer of a motor under test, the motor controller is used to control the idling operation of the motor under test, and the power analyzer is used to assist in measuring parameters such as voltage, current, frequency, and power of the motor under test when the motor under test is idling; a warning light and a handle are provided on the upper side of the shell, an air pipe joint and a power input interface are provided on the rear side, and a two-speed knob switch I, a two-speed knob switch II, a two-speed knob switch III, a two-speed knob switch IV, a three-speed knob switch and a barometer are provided on the front side, and the air pump, the barometer and the air pipe joint are used in combination to test the protection level of the motor under test.

[0005] Preferably, three observation windows are opened on the shell for observing the values ​​of the angle meter, the power analyzer, and the regulated DC power supply and for setting parameters.

[0006] Preferably, the control switch includes a first control switch, a second control switch, a third control switch, a fourth control switch, and a fifth control switch, wherein the first control switch, the second control switch, the third control switch, and the fourth control switch are each composed of a switch coil and a normally open contact, and the fifth control switch is composed of two normally closed contacts, seven normally open contacts, and four switch coils.

[0007] Preferably, the first control switch is used to control the power input of the angle meter and the power analyzer; the second control switch is used to control the power input of the steady-current DC power supply; the third control switch is used to control the high-voltage power supply and low-voltage auxiliary power supply input of the motor controller; the fourth control switch is used to control the switching of the air pump and the two-position two-way solenoid valve; the fifth control switch is used to control the switching of the steady-current DC power supply and the output of the motor controller.

[0008] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention adopts a highly integrated design and can be carried for use in many scenarios; it can conveniently allow the new energy vehicle motor to idle, and then check the operating status and performance data of the motor under test, and has the function of adjusting the angle of the rotating transformer of the motor under test and testing the protection level of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention; Figure 2 It is a left-side structural schematic diagram of an embodiment of the present invention; Figure 3 It is a right view structural schematic diagram of an embodiment of the present invention; Figure 4 It is a rear view structural schematic diagram of an embodiment of the present invention; Figure 5 A schematic diagram of circuit connections of components of an embodiment of the present invention; Figure 6 A schematic diagram of the circuit connection between components and multiple knob switches according to an embodiment of the present invention; Figure 7 A schematic diagram of the circuit connection of an inclinometer, a motor controller and a rotary transformer when adjusting a rotary transformer of a motor under test according to an embodiment of the present invention; Figure 8 Schematic diagram of the air circuit connection between the air pump and the motor under test according to an embodiment of the present invention.

[0010] In the figure: 101, power analyzer, 102, steady-current DC power supply, 103, housing, 104, angle meter, 105, barometer, 106, warning light, 107, handle, 108, air pump, 109, two-position two-way solenoid valve, 110, switching power supply, 111, motor controller, 112, air pipe joint, 113, power input interface, 114, inverter, SA1, two-speed knob switch I, SA2, two-speed knob switch II, SA3, two-speed knob switch III, SA4, two-speed knob switch IV, SA5, three-speed knob switch, KM1, first control switch, KM1-1, first coil, KM1-2, first normally open contact, KM2, second control switch, KM2-1, second coil, KM2-2, second Normally open contact, KM3, third control switch, KM3-1, third coil, KM3-2, third normally open contact, KM4, fourth control switch, KM4-1, fourth coil, KM4-2, fourth normally open contact, KM5, fifth control switch, KM5-1, fifth coil, KM5-2, fifth normally closed contact, KM5-3, fifth normally open contact, KM5-4, sixth normally open contact, KM5-5, seventh normally open contact, KM5-6, sixth coil, KM5-7, sixth normally closed contact, KM5-8, eighth normally open contact, KM5-9, ninth normally open contact, KM5-10, seventh coil, KM5-11, tenth normally open contact, KM5-12, eighth coil, KM5-13, eleventh normally open contact. DETAILED DESCRIPTION

[0011] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "vertical", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are 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, and therefore cannot be understood as a limitation on the present invention.

[0012] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0013] like Figure 1-3As shown, the outer dimensions of the housing 103 in the embodiment of the present invention are 450 mm long × 370 mm wide × 450 mm high, and the overall weight is about 35 kg. The warning light 106 and the handle 107 are on the upper side of the housing 103, the air pipe joint 112 and the power input interface 113 are on the rear side, and the remaining components are integrated inside the housing 103. Three operation observation windows are provided on the front side of the housing 103. The display panels of the steady-current DC power supply 102, the angle meter 104 and the power analyzer 101 are placed at the observation windows for setting parameters and observing values. The front side of the housing 103 is also provided with a two-speed rotary switch ISA1, a two-speed rotary switch IISA2, a two-speed rotary switch IIISA3, a two-speed rotary switch IVSA4, a three-speed rotary switch SA5 and a barometer 105.

[0014] When in use, the power input interface 113 on the rear side of the housing 103 is connected to a DC power source, and the battery of the new energy vehicle can be connected as a power source, or another supporting battery can be used.

[0015] like Figure 4-6 As shown, when the angle of the rotary transformer of the motor under test needs to be adjusted, the two-speed knob switch SA1 and the two-speed knob switch SA2 are turned on, and the three-speed knob switch SA5 is turned to the DC output gear. At this time, the first coil KM1-1, the second coil KM2-1, the fifth coil KM5-1, and the seventh coil KM5-11 are energized, and the first normally open contact KM1-2 and the second normally open contact KM2-2 are connected, and the fifth normally closed contact KM5-2 is disconnected, and the angle meter 104 and the steady-current DC power supply 102 are connected. The input, the tenth normally open contact KM5-12 is closed, the angle meter 104 is energized and connected to the low-voltage signal line of the rotary transformer of the motor under test, and the steady-current DC power supply 102 outputs DC to the motor under test, and the angle of the rotary transformer can be adjusted.

[0016] When the protection level of the motor under test needs to be tested, the air pipe connector 112 is connected to the motor under test, the two-speed knob switch SA4 is turned on, the fourth coil KM4-1 and the two-position two-way solenoid valve 109 are energized, and the two-position two-way solenoid valve 109 is connected to the air path, the fourth normally open contact KM4-2 is closed, and the air pump 108 starts to inflate the motor under test. At this time, the barometer 105 is observed. When the air pressure reaches the required pressure value, the two-speed knob switch SA4 is turned off, the air pump 108 stops inflating, and the two-position two-way solenoid valve 109 closes the air path. By observing the air pressure drop value, it is judged whether the motor under test reaches the required protection level.

[0017] When the motor under test needs to run at idle speed, turn on the two-speed knob switch SA1 and the two-speed knob switch SA3, and turn the three-speed knob switch SA5 to the controller output gear. At this time, the first coil KM1-1, the third coil KM3-1, the sixth coil KM5-6, and the eighth coil KM5-12 are energized, and the third normally open contact KM3-2, the fifth normally open contact KM5-3, and the seventh open contact KM5-5, the motor controller 111 are energized and the auxiliary power supply is connected, the eighth normally open contact KM5-13 is closed, and the rotary transformer of the motor under test is connected to the motor controller 111. At this time, the motor can be controlled to run at idle speed and the motor running status and data can be detected. The first normally open contact KM1-2 is connected, and the power analyzer 101 is powered on to assist in testing the data.

[0018] The sixth normally closed contact KM5-8 and the fifth normally closed contact KM5-2 are in an interlocking relationship, so only one of the regulated DC power supply 102 and the motor controller 111 can energize the motor under test.

[0019] No matter the three-speed rotary switch SA5 is set to the DC output gear or the motor controller output gear, the sixth normally open contact KM5-4 and the ninth normally open contact KM5-9 are both closed, and the warning light 106 is lit to serve as a high voltage warning.

[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable tester for new energy vehicle motors, characterized in that: It comprises a shell, inside which an inverter, a steady-current DC power supply, an inclinometer, a power analyzer, a motor controller, a switching power supply, an air pump, a two-position two-way solenoid valve and a control switch are integrated, wherein the steady-current DC power supply and the inclinometer are used in combination to adjust the angle of the rotary transformer of the motor under test, the motor controller is used to control the idling operation of the motor under test, and the power analyzer is used to assist in measuring parameters such as voltage, current, frequency, power and the like when the motor under test is idling; a warning light and a handle are arranged on the upper side of the shell, an air pipe joint and a power input interface are arranged on the rear side, and a two-speed knob switch I, a two-speed knob switch II, a two-speed knob switch III, a two-speed knob switch IV, a three-speed knob switch and a pressure gauge are arranged on the front side, and the air pump, the pressure gauge and the air pipe joint are used in combination to test the protection level of the motor under test.

2. A portable tester for new energy vehicle motor according to claim 1, characterized in that: The shell has three observation windows for observing the values ​​of the angle meter, the power analyzer, and the steady-current DC power supply and for setting parameters.

3. A portable tester for new energy vehicle motor according to claim 1, characterized in that: The control switch includes a first control switch, a second control switch, a third control switch, a fourth control switch, and a fifth control switch, wherein the first control switch, the second control switch, the third control switch, and the fourth control switch are each composed of a switch coil and a normally open contact, and the fifth control switch is composed of two normally closed contacts, seven normally open contacts, and four switch coils.

4. A portable tester for new energy vehicle motor according to claim 3, characterized in that: The first control switch is used to control the power input of the angle meter and the power analyzer; the second control switch is used to control the power input of the steady-state DC; the third control switch is used to control the high-voltage power supply and low-voltage auxiliary power supply input of the motor controller; the fourth control switch is used to control the switch of the air pump and the two-position two-way solenoid valve; The fifth control switch is used to control the switching of the output of the regulated DC power supply and the motor controller.

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