Driving motor EMC test fixture for new energy automobile

Abstract

The invention belongs to the technical field of mechanical transmission, and particularly relates to a driving motor EMC test fixture for a new energy automobile, which comprises a supporting part and a driving motor used for being fixedly placed, the end sleeve part is arranged at the bottom of the supporting part and used for being connected with an output shaft of the driving motor in a sleeving mode. The magnetic field generated by the motor during working is weak, so that the spherical detection head and the motor are always kept at a proper distance by pushing the clamping sliding shell, the magnetic field intensity generated by the motor during working is obtained under the condition that the spherical detection head is not in contact with the motor, and whether the motor generates obvious magnetic field interference to the outside or not during actual working is judged; as the distance adjusting part is adopted to adjust and control the spherical detection head in the whole process, compared with the mode that a detection part is manually used for scanning the exterior of the motor, the position of the spherical detection head is more stable, and the problem that a detected magnetic field is greatly changed due to movement of the detection head, and consequently sampling data are distorted is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of mechanical transmission, and in particular to an EMC test fixture for a drive motor of a new energy vehicle. Background Art

[0002] At present, motor testing is generally divided into assembly testing and single motor testing. However, no matter which test is performed, the motor under test needs to be connected to the dynamometer, so the connection tooling is particularly important, especially when collecting high-speed motor data, the tooling requirements are higher. EMC (electromagnetic compatibility testing) refers to the ability of a device or system to operate in accordance with the requirements in its electromagnetic environment and not cause intolerable electromagnetic interference to any equipment in its environment. Therefore, existing new energy electric vehicle motors need to undergo EMC (electromagnetic compatibility testing) testing.

[0003] When conducting EMC testing on a motor, the tester needs to hold the detection terminal and sweep it across the outside of the motor. The relevant imaging data will then present the detected magnetic force in the form of a picture, and the detection effect is achieved based on the strength of the magnetic field. However, the method of manually holding the detection terminal is not only unstable, but also more dangerous when contacting the motor in the working state, so it needs to be improved. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention solves the technical problems thereof by adopting a technical solution: an EMC test fixture for a drive motor for a new energy vehicle, comprising:

[0005] A supporting component for fixing the driving motor;

[0006] An end sleeve component is provided at the bottom of the supporting component and is used for sleeve-connecting the output shaft of the driving motor;

[0007] A protective shell is used to cover the outside of the drive motor to isolate the drive motor from the outside world;

[0008] The detection component is arranged on the top of the protective shell and is used to monitor the magnetic field generated when the drive motor is working;

[0009] The external fixing claws are arranged at the bottom of the supporting component to increase the contact area between the supporting component and the ground and stabilize the supporting component.

[0010] Furthermore, the supporting component includes:

[0011] A fixed bottom shell is arranged on the ground, and docking slots are symmetrically provided on both sides of the upper surface of the fixed bottom shell;

[0012] The load-bearing plate is arranged in the middle of the upper surface of the fixed bottom shell, and power supply slots are evenly opened on the right side of the upper surface of the load-bearing plate to supply power to the placed drive motor through the power supply slots;

[0013] The built-in power supply is set on the right side of the inner wall of the fixed bottom shell and directly supplies power to the power supply slot;

[0014] The adjustment slide rod is evenly arranged on the top of the inner cavity of the load-bearing plate, and the adjustment slide rod consists of a shell at the bottom and a sliding rod body;

[0015] The control base plate is mounted on the top of the inner wall of the fixed bottom shell, and the inner cavity of the control base plate is connected to the bottom of the inner cavity of the adjustment slide rod through a wire. The control base plate controls the slide rod portion of the adjustment slide rod to perform vertical sliding motion through electrical control;

[0016] The horizontal pallet is arranged at the top end of the adjustment slide rod, and guide grooves are symmetrically opened on both sides of the inner cavity of the horizontal pallet. Sliding bases are symmetrically arranged on both sides of the horizontal pallet through the guide grooves. The middle part of the inner cavity of the horizontal pallet drives the sliding base to slide along the guide groove through the traction rope. The driving motor is placed on the horizontal pallet, and the specific landing point is on the sliding base. The horizontal pallet adjusts the distance between the sliding bases on both sides so that the sliding base can adapt to the shape of the lower surface of the driving motor to clamp the motor.

[0017] Furthermore, the detection component includes:

[0018] A guide top shell, wherein arc-surface slide cylinders are symmetrically provided on both sides of the inner wall of the guide top shell;

[0019] A snap-fit sliding shell, wherein both sides of the outer surface of the snap-fit sliding shell are slidably connected to the inner wall of the guide top shell through a curved sliding cylinder;

[0020] A magnetic induction detector, wherein spherical detection heads are evenly arranged on the lower surface of the magnetic induction detector, and the magnetic induction detector is installed inside the clamping sliding shell. The magnetic induction detector uses the spherical detection heads arranged on the lower surface to perform electromagnetic compatibility testing on the drive motor when it is working below;

[0021] A processor, the processor being mounted on the top of the guide top shell via a fixing slot, and the lower surface of the processor being connected to the inner cavity of the magnetic induction detector via a transmission wire, and the processor feeding back electromagnetic data of the internal motor via an external display screen;

[0022] The distance adjustment component is arranged on the inner wall of the guide top shell and is used to control the movement of the clamping sliding shell.

[0023] Furthermore, the distance adjustment component includes:

[0024] The pressure controller is arranged on the outer surface of the guide top shell, and a plug-in sleeve is arranged on the side of the pressure controller close to the processor;

[0025] The top of the inner wall of the pressure connecting tube is fixedly connected to the bottom end of the outer surface of the plug-in tube. The pressure controller pressurizes the inside of the pressure connecting tube through the external air inlet, thereby stretching the bottom end of the pressure connecting tube, and can also shrink it by reducing pressure.

[0026] The sliding inner plate, the bottom end of the pressure connecting pipe is fixedly connected to the upper surface of the sliding inner plate, the outer surface of the sliding inner plate is slidably connected to the inner wall of the cambered sliding cylinder, the bottom end of the sliding inner plate is plugged into the inner cavity of the card-connected sliding shell through the insertion rod, the sliding inner plate is adapted to the design of the cambered sliding cylinder, its inner ring part slides along the inner wall of the cambered sliding cylinder, and the outer ring part slides against the outer surface of the cambered sliding cylinder, the inner ring and the outer ring are fixedly connected by weldments, when sliding, the bottom end of the pressure connecting pipe pushes the inner ring part of the sliding inner plate, thereby driving the outer ring part of the sliding inner plate to control the card-connected sliding shell at the bottom to perform sliding movement.

[0027] Furthermore, the protective shell includes:

[0028] An upper sliding shell, wherein the top of the inner cavity of the upper sliding shell is fixedly connected to the bottom of the outer surface of the guide top shell through a fixing port;

[0029] The plug-in bottom shell has a bottom portion on the outer surface of the upper sliding shell that is slidably connected to the inner cavity of the plug-in bottom shell, and the bottom portion of the plug-in bottom shell is plugged into the top portion of the fixed bottom shell via a docking slot;

[0030] The outer surface of the air cylinder is clamped with the outer part of the upper sliding shell. The bottom end of the output shaft of the air cylinder is provided with a traction tube. The bottom end of the traction tube is fixedly connected with the outer surface of the plug-in bottom shell through the side plate. By pressurizing the inside of the traction tube, the traction tube is expanded and stretched, thereby adjusting the sliding distance of the upper sliding shell relative to the plug-in bottom shell to adapt to the height of the internal drive motor. Figure 2 It can be seen that at the positions of the upper sliding shell and the plug-in bottom shell close to the end sleeve component, a groove is opened at the axis center to allow the motor shaft to pass through.

[0031] Furthermore, the end sleeve component includes:

[0032] A guide bottom cylinder, the outer surface of which is fixedly connected to the left side of the inner cavity of the fixed bottom shell, and the left end of which extends to the outside of the fixed bottom shell;

[0033] A transfer connecting rod, the bottom of which is slidably connected to the inner wall of the guide bottom cylinder;

[0034] An external collar is provided with a traction handle in the middle of the upper surface of the external collar, and the bottom end of the external collar is plugged into the top of the transfer connecting rod.

[0035] The end sleeve component further includes:

[0036] A built-in splint, tachometer wheels are symmetrically arranged on both sides of the inner cavity of the built-in splint, a built-in push rod is fixedly connected to the middle of the outer surface of the built-in splint, and the outer surface of the built-in push rod is slidably connected to the inner cavity of the external sleeve through a through-hole. When the motor is working, its shaft rotates, thereby driving the fitted tachometer wheel to roll. Since the tachometer wheel is tightly attached to the outer surface of the motor shaft under the thrust of the external compression cylinder, the real-time speed of the motor shaft can be tested by the speed of the tachometer wheel.

[0037] An external compression cylinder, wherein the axis center of the inner wall of the external compression cylinder is slidably connected to the outer surface of the built-in push rod, and the outer surface of the external compression cylinder is fixedly connected to the outer surface of the external sleeve.

[0038] Furthermore, the external fixing claw includes:

[0039] A wall-adherent disc, wherein the outer surface of the wall-adherent disc is evenly provided with sliding balls through grooves, and the outer surface of the wall-adherent disc is slidably connected to the inner wall of the fixed bottom shell through the sliding balls;

[0040] An outer chuck, wherein the middle portion of the inner cavity of the outer chuck is plugged into the top end of the axis of the wall-adhering disc;

[0041] An inner spring band, the bottom end of which is fixedly connected to the axis of the outer surface of the wall-adhering disc, and the inner spring band is always compressed in the through-hole of the fixed bottom shell;

[0042] An outer support column, wherein the bottom end of the outer support column is fixedly connected to a buffer foot, and the top end of the outer support column is fixedly connected to the axis of the outer surface of the outer chuck.

[0043] The beneficial effects of the present invention are as follows:

[0044] 1. The device uses the magnetic induction detector on the top to detect the magnetic field of the motor. Since the magnetic field generated by the motor is weak when working, the spherical detection head is kept at an appropriate distance from the motor by pushing the card-jointed sliding shell. Then, without contacting the motor, the magnetic field strength generated by the motor when working is obtained to determine whether the motor will generate obvious magnetic field interference to the outside during actual operation. Since the spherical detection head is adjusted by the distance adjustment component throughout the process, the position of the spherical detection head will be more stable than manually using the detection component to scan the outside of the motor, avoiding the problem of distortion of the sampling data caused by large changes in the detected magnetic field due to the movement of the detection head.

[0045] 2. The device covers the working motor with a protective shell to prevent the motor from being disturbed by the external environment. Since the motor being tested is not a finished motor, it only needs to undergo EMC testing and does not require high structural strength. Therefore, the motor is isolated from the outside to prevent the high-speed torsion motor from throwing parts out and injuring people due to structural instability. The spherical detection head will not be disturbed by the external magnetic field due to the isolation effect of the guide top shell and the protective shell, thereby ensuring the accuracy of the test results.

[0046] 3. The device can be used to place motors of different models. By changing the actual length of the adjustment slide bar and the distance between the sliding bases on both sides, each sliding base can be placed close to the edge of the lower surface of the motor, thereby clamping the motor according to the actual situation of the motor, avoiding the problem that when the motor is placed directly on the horizontal pallet, the distance between the motor and the horizontal pallet is too large, resulting in unstable placement of the motor and easy shaking when rotating at high speed.

[0047] 4. The device tests the real-time speed of the motor through the end sleeve component, and then obtains the current power of the motor. Since the magnetic field strength generated by the motor is related to the actual power, the motor speed can be adjusted through the end sleeve component to make the motor generate a larger magnetic field under high power state, and determine whether the magnetic field will cause obvious interference to the outside, thereby meeting the testing work under extreme conditions.

[0048] 5. After the motor starts working, it will inevitably vibrate. At this time, the fixed bottom shell will slide relative to the external fixing claws fixed on the ground, that is, the fixed bottom shell squeezes the internal spring belt, and the vibration force is absorbed by the internal spring belt to achieve buffering work. The buffering feet at the bottom can effectively buffer work in the vertical direction, ensuring the stability of the device when covering the motor in the working state. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a front view of the present invention;

[0050] Figure 2 is a cross-sectional view of the present invention;

[0051] Figure 3 is a cross-sectional view of the fixed bottom shell of the present invention;

[0052] Figure 4 is a cross-sectional view of the guide top shell of the present invention;

[0053] Figure 5 It is a structural schematic diagram of the distance adjustment component of the present invention;

[0054] Figure 6 is a cross-sectional view of the protective housing of the present invention;

[0055] Figure 7It is a structural schematic diagram of the end sleeve component of the present invention;

[0056] Figure 8 1 is a cross-sectional view of the adherent disc of the present invention.

[0057] Figure: 1, support component; 2, end sleeve component; 3, protective shell; 4, detection component; 5, external fixing claw; 11, fixed bottom shell; 12, docking slot; 13, load-bearing plate; 14, control bottom plate; 15, built-in power supply; 16, adjustment slide; 17, horizontal support plate; 18, sliding base; 41, guide top shell; 42, snap-on slide shell; 43, curved slide cylinder; 44, magnetic induction detector; 45, spherical detection head; 46, processor; 47, transmission wire; 6, distance adjustment component; 61, pressure Force controller; 62, plug-in cylinder; 63, pressure connecting pipe; 64, sliding inner plate; 31, upper sliding shell; 32, plug-in bottom shell; 33, air pressure cylinder; 34, traction pull tube; 35, side plate; 21, guide bottom cylinder; 22, transfer connecting rod; 23, external collar; 24, traction handle; 25, internal splint; 26, speed measuring wheel; 27, external compression cylinder; 51, wall-mounted disc; 52, sliding ball; 53, external chuck; 54, internal spring belt; 55, external support column; 56, buffer foot. DETAILED DESCRIPTION

[0058] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described to better illustrate the principles of the invention and its practical application, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for specific applications.

[0059] Example 1, please refer to Figure 1-Figure 5 The present invention provides a technical solution: an EMC test fixture for a drive motor for a new energy vehicle, comprising:

[0060] Support component 1, used for fixing the driving motor;

[0061] The end sleeve component 2 is provided at the bottom of the support component 1 and is used for sleeve-connecting the output shaft of the driving motor;

[0062] The protective housing 3 is used to be placed on the outside of the drive motor to isolate the drive motor from the outside world;

[0063] The detection component 4 is provided on the top of the protective housing 3 and is used to monitor the magnetic field generated when the drive motor is working;

[0064] The external fixing claws 5 are provided at the bottom of the supporting component 1 to increase the contact area between the supporting component 1 and the ground and stabilize the supporting component 1 .

[0065] The supporting component 1 comprises:

[0066] A fixed bottom shell 11 is set on the ground, and docking slots 12 are symmetrically opened on both sides of the upper surface of the fixed bottom shell 11;

[0067] The load-bearing plate 13 is arranged in the middle of the upper surface of the fixed bottom shell 11, and power supply slots are evenly opened on the right side of the upper surface of the load-bearing plate 13 to supply power to the placed drive motor through the power supply slots;

[0068] The built-in power supply 15 is arranged on the right side of the inner wall of the fixed bottom shell 11 and directly supplies power to the power supply slot;

[0069] The adjustment slide rod 16 is evenly arranged on the top of the inner cavity of the load-bearing plate 13. The adjustment slide rod 16 consists of a shell at the bottom and a sliding rod body;

[0070] The control base plate 14 is mounted on the top of the inner wall of the fixed bottom shell 11, and the inner cavity of the control base plate 14 is connected to the bottom of the inner cavity of the adjustment slide rod 16 through a wire. The control base plate 14 controls the slide rod portion of the adjustment slide rod 16 to perform vertical sliding motion through electrical control;

[0071] The horizontal pallet 17 is arranged at the top end of the adjustment slide rod 16, and guide grooves are symmetrically opened on both sides of the inner cavity of the horizontal pallet 17. Sliding bases 18 are symmetrically arranged on both sides of the horizontal pallet 17 through the guide grooves. The middle part of the inner cavity of the horizontal pallet 17 drives the sliding base 18 to slide along the guide groove through the traction rope. The drive motor is placed on the horizontal pallet 17, and the specific landing point is on the sliding base 18. The horizontal pallet 17 adjusts the distance between the sliding bases 18 on both sides so that the sliding base 18 can adapt to the shape of the lower surface of the drive motor to clamp the motor.

[0072] The detection component 4 includes,

[0073] The guiding top shell 41 has arc-surface slide cylinders 43 symmetrically arranged on both sides of the inner wall of the guiding top shell 41;

[0074] The clamping sliding shell 42 has both sides of the outer surface of the clamping sliding shell 42 slidably connected to the inner wall of the guide top shell 41 through the arc-surface sliding cylinder 43;

[0075] The magnetic induction detector 44 has spherical detection heads 45 evenly arranged on its lower surface. The magnetic induction detector 44 is installed inside the clamping sliding shell 42. The magnetic induction detector 44 uses the spherical detection heads 45 arranged on its lower surface to perform electromagnetic compatibility testing on the drive motor when it is working below.

[0076] Processor 46, which is mounted on the top of guide top shell 41 through a fixing slot, and the lower surface of processor 46 is connected to the inner cavity of magnetic induction detector 44 through transmission wire 47. Processor 46 feeds back electromagnetic data of the internal motor through an external display screen;

[0077] The distance-adjusting component 6 is provided on the inner wall of the guiding top shell 41 and is used for controlling the movement of the clamping sliding shell 42 .

[0078] The distance adjustment component 6 includes:

[0079] The pressure controller 61 is provided on the outer surface of the guide top shell 41 , and a plug-in sleeve 62 is provided on the side of the pressure controller 61 close to the processor 46 ;

[0080] The top of the inner wall of the pressure connecting tube 63 is fixedly connected to the bottom end of the outer surface of the plug-in tube 62. The pressure controller 61 pressurizes the inside of the pressure connecting tube 63 through the external air inlet, thereby stretching the bottom end of the pressure connecting tube 63, and can also shrink it by reducing pressure.

[0081] The sliding inner plate 64 and the bottom end of the pressure connecting tube 63 are fixedly connected to the upper surface of the sliding inner plate 64, and the outer surface of the sliding inner plate 64 is slidably connected to the inner wall of the curved slide tube 43. The bottom end of the sliding inner plate 64 is plugged into the inner cavity of the card-connecting slide shell 42 through the insertion rod. The sliding inner plate 64 is adapted to the design of the curved slide tube 43. Its inner ring part slides along the inner wall of the curved slide tube 43, and the outer ring part slides against the outer surface of the curved slide tube 43. The inner ring and the outer ring are fixedly connected by weldments. When sliding, the bottom end of the pressure connecting tube 63 pushes the inner ring part of the sliding inner plate 64, thereby driving the outer ring part of the sliding inner plate 64 to control the card-connecting slide shell 42 at the bottom to slide.

[0082] When conducting motor inspection, the motor is placed above the support component 1, and the motor is powered by the built-in power supply 15 and the plug. Then, the protective shell 3 is covered on the upper part of the support component 1 through external related handling equipment. At this time, the motor's shaft passes through the notch on the left side of the protective shell 3 to the outside, and then the end sleeve component 2 is connected to the motor's shaft. After completing the preparation work, start the internal motor, and then the motor starts to work. The electromagnetic detection work is performed on the working motor through the upper detection component 4.

[0083] When the motor is placed on the horizontal support plate 17, the distance between the sliding bases 18 on both sides is adjusted according to the shape of the lower surface of the motor, so that the sliding base 18 can contact the motor by lifting the side of the lower surface of the motor. According to the actual shape of the lower surface of the motor, the actual height of the top of the adjustment slide bar 16 is changed so that the sliding base 18 of each horizontal support plate 17 can fit the lower surface of the motor housing, thereby completely fixing the motor.

[0084] When the motor is working, the pressure controller 61 located above controls the length of the pressure connecting tube 63 to push the snap-on sliding shell 42 to slide, so that the spherical detection head 45 at the bottom of the magnetic induction detector 44 gradually slides toward the outer surface of the motor. Therefore, the magnetic force sensed by the spherical detection head 45 will gradually become obvious, and the induced data will be transmitted to the processor 46 at the top through the transmission wire 47, so that the external operator can observe the data changes.

[0085] Example 2, please refer to Figures 1-8 The present invention provides a technical solution: Based on embodiment 1, the protective shell 3 includes:

[0086] The upper sliding shell 31, the top of the inner cavity of the upper sliding shell 31 is fixedly connected to the bottom of the outer surface of the guide top shell 41 through a fixing port;

[0087] The plug-in bottom shell 32, the bottom of the outer surface of the upper sliding shell 31 is slidably connected with the inner cavity of the plug-in bottom shell 32, and the bottom of the plug-in bottom shell 32 is plugged with the top of the fixed bottom shell 11 through the docking slot 12;

[0088] The outer surface of the air cylinder 33 is clamped with the outer surface of the upper sliding shell 31. The bottom end of the output shaft of the air cylinder 33 is provided with a traction tube 34. The bottom end of the traction tube 34 is fixedly connected to the outer surface of the plug-in bottom shell 32 through the side plate 35. By pressurizing the inside of the traction tube 34, the traction tube 34 is expanded and stretched, thereby adjusting the sliding distance of the upper sliding shell 31 relative to the plug-in bottom shell 32 to adapt to the height of the internal drive motor. Figure 2 It can be seen that at positions of the upper sliding housing 31 and the plug-in bottom housing 32 close to the end sleeve component 2, a slot is opened at the axis center thereof to allow the motor shaft to pass through.

[0089] The end sleeve component 2 includes:

[0090] A guide bottom cylinder 21, the outer surface of which is fixedly connected to the left side of the inner cavity of the fixed bottom shell 11, and the left end of which extends to the outside of the fixed bottom shell 11;

[0091] A transfer connecting rod 22, the bottom of which is slidably connected to the inner wall of the guide bottom cylinder 21;

[0092] The external collar 23 has a traction handle 24 provided in the middle of the upper surface of the external collar 23 , and the bottom end of the external collar 23 is plugged into the top of the transfer link 22 .

[0093] The end sleeve component 2 also includes,

[0094] The internal splint 25 has tachometer wheels 26 symmetrically arranged on both sides of the inner cavity of the internal splint 25. A built-in push rod is fixedly connected to the middle of the outer surface of the internal splint 25, and the outer surface of the built-in push rod is slidably connected to the inner cavity of the external collar 23 through a through-hole. When the motor is working, its shaft rotates, thereby driving the tachometer wheel 26 to roll. Since the tachometer wheel 26 is in close contact with the outer surface of the motor shaft under the thrust of the external compression cylinder 27, the real-time speed of the motor shaft can be tested by the speed of the tachometer wheel 26.

[0095] The external compression cylinder 27 has an inner wall whose axis is slidably connected to the outer surface of the internal push rod, and the outer surface of the external compression cylinder 27 is fixedly connected to the outer surface of the external sleeve 23 .

[0096] The external fixing claw 5 includes:

[0097] The outer surface of the wall-adhering disc 51 is evenly provided with sliding balls 52 through grooves, and the outer surface of the wall-adhering disc 51 is slidably connected to the inner wall of the fixed bottom shell 11 through the sliding balls 52;

[0098] The outer chuck 53 has its middle portion of the inner cavity of the outer chuck 53 plugged into the top end of the axial center of the wall-attached disc 51;

[0099] The inner spring band 54 has its bottom end fixedly connected to the axis of the outer surface of the wall-adhering disc 51. The inner spring band 54 is always compressed in the through-hole of the fixed bottom shell 11.

[0100] The outer support column 55 has a bottom end fixedly connected to a buffer foot 56 , and a top end of the outer support column 55 is fixedly connected to the axis of the outer surface of the outer chuck 53 .

[0101] After inserting the bottom of the plug-in bottom shell 32 into the slot of the fixed bottom shell 11, the sliding height of the upper sliding shell 31 is adjusted by the air pressure cylinders 33 on both sides, thereby expanding the volume of the protective shell 3, so that the protective shell 3 can completely cover the motor, and the top detection component 4 has a certain margin distance from the motor, so that the snap-on sliding shell 42 has sufficient sliding space to prevent the spherical detection head 45 from contacting the outer surface of the motor.

[0102] Before placing the motor, the external collar 23 is pulled to the left by the traction handle 24 on the top, thereby lengthening the transfer link 22, and then the motor is placed and covered, and then the external collar 23 is pulled upward to raise the transfer link 22 so that the axis of the external collar 23 is aligned with the motor shaft, and then the external collar 23 is pushed toward the side close to the motor shaft, and the motor shaft is inserted into the external collar 23. After the built-in clamps 25 on both sides clamp the outer surface of the motor shaft, the transfer link 22 is fixed. When the motor is working, the rotation of its shaft will drive the tachometer wheel 26, and the speed of the tachometer wheel 26 can be used to monitor the power of the motor at all times.

[0103] After the motor starts working, it will inevitably vibrate. At this time, the fixed bottom shell 11 will slide relative to the external fixing claw 5 fixed to the ground, that is, the fixed bottom shell 11 squeezes the internal inner spring belt 54, and the inner spring belt 54 absorbs the vibration force to achieve buffering work, while the buffer foot 56 at the bottom can effectively buffer work in the vertical direction, ensuring the stability of the device when covering the motor in the working state.

[0104] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. An EMC test fixture for a drive motor for a new energy vehicle, comprising: A supporting component (1) for fixing a driving motor; An end sleeve component (2) is arranged at the bottom of the support component (1) and is used for sleeve-connecting the output shaft of the driving motor; It is characterized by: including: A protective housing (3) is used to be sleeved on the outside of the drive motor to isolate the drive motor from the outside world; A detection component (4) is arranged on the top of the protective housing (3) and is used to monitor the magnetic field generated when the drive motor is in operation; The external fixing claw (5) is arranged at the bottom of the supporting component (1) and is used to increase the contact area between the supporting component (1) and the ground, thereby stabilizing the supporting component (1).

2. The EMC test fixture for the drive motor of a new energy vehicle according to claim 1, characterized in that: The supporting member (1) comprises: A fixed bottom shell (11), wherein the fixed bottom shell (11) is arranged on the ground, and docking slots (12) are symmetrically provided on both sides of the upper surface of the fixed bottom shell (11); A load-bearing plate (13) is arranged in the middle of the upper surface of the fixed bottom shell (11), and power supply slots are evenly opened on the right side of the upper surface of the load-bearing plate (13); A built-in power supply (15) is arranged on the right side of the inner wall of the fixed bottom shell (11) and directly supplies power to the power supply slot; Adjust the slide bar (16) and evenly set it on the top of the inner cavity of the load-bearing plate (13); A control base plate (14) is mounted on the top of the inner wall of the fixed bottom shell (11), and the inner cavity of the control base plate (14) is connected to the bottom of the inner cavity of the adjustment slide rod (16) through a wire; A transverse support plate (17) is arranged at the top end of the adjustment slide rod (16), and guide grooves are symmetrically provided on both sides of the inner cavity of the transverse support plate (17). Sliding bases (18) are symmetrically provided on both sides of the transverse support plate (17) through the guide grooves. The middle part of the inner cavity of the transverse support plate (17) drives the sliding base (18) to slide along the guide grooves through a traction rope.

3. The EMC test fixture for the drive motor of a new energy vehicle according to claim 2, characterized in that: The detection component (4) includes: A guide top shell (41), wherein arc-surface sliding cylinders (43) are symmetrically provided on both sides of the inner wall of the guide top shell (41); A snap-fit sliding shell (42), both sides of the outer surface of the snap-fit sliding shell (42) are slidably connected to the inner wall of the guide top shell (41) through a curved sliding cylinder (43); A magnetic induction detector (44), wherein a spherical detection head (45) is evenly arranged on the lower surface of the magnetic induction detector (44), and the magnetic induction detector (44) is installed inside the clamping sliding shell (42); A processor (46), wherein the processor (46) is mounted on the top of the guide top shell (41) through a fixing groove, and the lower surface of the processor (46) is connected to the inner cavity of the magnetic induction detector (44) through a transmission wire (47); The distance adjustment component (6) is arranged on the inner wall of the guide top shell (41) and is used to control the movement of the clamping sliding shell (42).

4. The EMC test fixture for the drive motor of a new energy vehicle according to claim 3 is characterized in that: The distance adjusting component (6) comprises: A pressure controller (61) is provided on the outer surface of the guide top shell (41), and a plug-in sleeve (62) is provided on a side of the pressure controller (61) close to the processor (46); A pressure connecting pipe (63), wherein the top of the inner wall of the pressure connecting pipe (63) is fixedly connected to the bottom end of the outer surface of the plug-in tube (62); The sliding inner plate (64) is fixedly connected to the upper surface of the sliding inner plate (64), the outer surface of the sliding inner plate (64) is slidably connected to the inner wall of the curved sliding cylinder (43), and the bottom end of the sliding inner plate (64) is plugged into the inner cavity of the clamping sliding shell (42) through an insert rod.

5. The EMC test fixture for the drive motor of a new energy vehicle according to claim 4, characterized in that: The protective housing (3) comprises: An upper sliding shell (31), wherein the top of the inner cavity of the upper sliding shell (31) is fixedly connected to the bottom of the outer surface of the guide top shell (41) through a fixing port; A plug-in bottom shell (32), wherein the bottom of the outer surface of the upper sliding shell (31) is slidably connected to the inner cavity of the plug-in bottom shell (32), and the bottom of the plug-in bottom shell (32) is plugged into the top of the fixed bottom shell (11) through a docking slot (12); A pneumatic cylinder (33) is provided, wherein the outer surface of the pneumatic cylinder (33) is engaged with the outer portion of the upper sliding shell (31); a traction tube (34) is provided at the bottom end of the output shaft of the pneumatic cylinder (33); and the bottom end of the traction tube (34) is fixedly connected to the outer surface of the plug-in bottom shell (32) through a side plate (35).

6. The EMC test fixture for the drive motor of a new energy vehicle according to claim 1, characterized in that: The end sleeve component (2) comprises: A guide bottom cylinder (21), wherein the outer surface of the guide bottom cylinder (21) is fixedly connected to the left side of the inner cavity of the fixed bottom shell (11), and the left end of the guide bottom cylinder (21) extends to the outside of the fixed bottom shell (11); A transfer connecting rod (22), the bottom of which is slidably connected to the inner wall of the guide bottom cylinder (21); An external collar (23) is provided with a traction handle (24) in the middle of the upper surface of the external collar (23), and the bottom end of the external collar (23) is plugged into the top of the transfer connecting rod (22).

7. The EMC test fixture for the drive motor of a new energy vehicle according to claim 6, characterized in that: The end sleeve component (2) further includes: A built-in splint (25), wherein speed measuring wheels (26) are symmetrically arranged on both sides of the inner cavity of the built-in splint (25), a built-in push rod is fixedly connected to the middle of the outer surface of the built-in splint (25), and the outer surface of the built-in push rod is slidably connected to the inner cavity of the external collar (23) through a through hole; An external compression cylinder (27) is provided, wherein the axis center of the inner wall of the external compression cylinder (27) is slidably connected to the outer surface of the internal push rod, and the outer surface of the external compression cylinder (27) is fixedly connected to the outer surface of the external sleeve (23).

8. The EMC test fixture for the drive motor of a new energy vehicle according to claim 1, characterized in that: The external fixing claw (5) includes: A wall-adhering disc (51), wherein the outer surface of the wall-adhering disc (51) is evenly provided with sliding balls (52) through grooves, and the outer surface of the wall-adhering disc (51) is slidably connected to the inner wall of the fixed bottom shell (11) through the sliding balls (52); An outer chuck (53), wherein the middle portion of the inner cavity of the outer chuck (53) is plugged into the top end of the axis of the wall-adhering disc (51); An inner spring band (54), the bottom end of the inner spring band (54) being fixedly connected to the axis of the outer surface of the wall-adhering disc (51); An outer support column (55), the bottom end of the outer support column (55) is fixedly connected to a buffer foot (56), and the top end of the outer support column (55) is fixedly connected to the axis of the outer surface of the outer chuck (53).

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