A device for testing the environmental performance of small high-speed motors

Abstract

This invention discloses an environmental performance testing device for small high-speed motors, comprising: a testing platform; at least one motor mounting base detachably mounted on the testing platform, the motor mounting base for mounting the motor under test and a magnetic powder brake, simulating the actual spatial layout and operating state of one or more motors to test the motor's performance stability and anti-interference capability; multiple enclosures arranged in a grid above the testing platform, with adjacent enclosures vertically slidingly connected; and a lifting mechanism located above the enclosures, used to drive the enclosures at a target position to descend, so that the descending enclosures are spliced ​​together to form a cover structure matching the distribution area of ​​the motor mounting base, the inside of which forms a closed chamber for environmental simulation. This device, employing a multi-hole plate testing platform in conjunction with a variable cover structure, can achieve dynamic reconstruction of the testing space, simulating the actual installation layout of multiple motors and improving the realism of the test.

Description

Technical Field

[0001] This invention relates to the field of motor technology, and more specifically to a device for testing the environmental performance of small high-speed motors. Background Technology

[0002] Small high-speed motors, characterized by high speed and small size, are widely used in consumer electronics, medical equipment, drones, power tools, automotive components (such as fuel pumps and ABS systems), and home appliances. The environmental performance of small high-speed motors directly affects their reliability under complex operating conditions; therefore, specialized testing equipment is required to comprehensively evaluate their performance under different environmental conditions.

[0003] In many applications, small high-speed motors do not operate alone, but rather multiple motors work in tandem, potentially experiencing electromagnetic interference and vibration coupling. However, existing motor environmental testing equipment is mostly fixed-cavity environmental test chambers, whose fixed testing space makes it difficult to adapt to the testing needs of multiple motors with different layouts, thus limiting the ability to simulate the coordinated operation of motors in complex systems. Furthermore, the chamber structure is generally fixed, requiring temperature and humidity control of the entire cavity. Even when testing only a single small motor, a significant amount of energy is consumed to heat or cool the entire volume, resulting in serious energy waste.

[0004] To address these issues, an environmental performance testing device for small high-speed motors is provided. Summary of the Invention

[0005] The purpose of this invention is to provide an environmental performance testing device for small high-speed motors, which solves the problem that existing testing equipment is mostly a fixed cavity environmental test chamber, with a fixed test space and uniform environmental parameters, making it difficult to simulate the spatial layout differences of multiple motors operating in cooperation in actual applications.

[0006] The present invention achieves the above objectives through the following technical solutions: An environmental performance testing device for small high-speed motors, comprising: Test platform; At least one motor mounting base is detachably mounted on the test platform. The motor mounting base is used to mount the motor under test and the magnetic powder brake to simulate the actual spatial layout and operating status of one or more motors in order to test the motor performance stability and anti-interference ability. Multiple enclosures are arranged in a grid pattern above the test platform, with adjacent enclosures vertically slidingly connected. A lifting mechanism is provided above the enclosure panel to drive the enclosure panel at the target position to descend, so that the descending enclosure panels are spliced ​​together to form a cover structure that matches the distribution area of ​​the motor mounting base. The inside of the cover structure forms a closed chamber for environmental simulation. Each of the enclosures has multiple air inlets on both sides of its lower end and multiple air outlets on both sides of its upper end. The top of each enclosure has an air inlet pipe and an air outlet pipe, which are used to connect to an external environment simulation device to deliver or output a specific environmental medium to the enclosed chamber.

[0007] As a further optimization of the present invention, the motor mounting base includes a fixed base, and a plug is fixedly provided at the bottom of the fixed base; the test platform is provided with a plurality of sockets distributed in a dot matrix pattern, and each socket is provided with a tension sleeve at the bottom, and the plug can be inserted into the socket and locked by the tension sleeve.

[0008] As a further optimization of the present invention, a magnetic ring is provided on the outer periphery of the insertion rod, and a sensor is provided on the inner wall of the tensioning sleeve. The sensor is used to detect the proximity signal of the magnetic ring to identify the installation position and insertion state of the motor mounting base, and to feed the signal back to the control system.

[0009] As a further optimization of the present invention, the motor mounting base also includes a rotating body rotatably disposed within a fixed base via a rotating shaft. The motor under test and the magnetic powder brake are mounted on the rotating body and rotate synchronously with it to simulate the multi-angle working conditions of the motor during actual installation. The side of the fixed base is provided with an arc-shaped slot, which extends in a concentric arc around the rotating shaft of the rotating body. The side of the rotating body is provided with fasteners that penetrate the arc-shaped slot to lock the rotating body.

[0010] As a further optimization of the present invention, each air inlet pipe and each air outlet pipe are provided in pairs. Each air inlet pipe corresponds to and connects to multiple air inlets on the same side of the enclosure, and the air inlets on both sides of the enclosure are not connected to each other. Each air outlet pipe corresponds to and connects to multiple air outlets on the same side of the enclosure, and the air outlets on both sides of the enclosure are not connected to each other. Both the air inlet pipe and the air outlet pipe are provided with solenoid valves.

[0011] As a further optimization of the present invention, the lower two sides of the enclosure are provided with first magnetic suction components, and the upper two sides are provided with second magnetic suction components; the middle part of the enclosure is provided with an observation window.

[0012] As a further optimization of the present invention, the device also includes a support frame, which includes a lower plate, a middle plate and an upper plate; the lower plate is provided with a track for sliding the test platform, the middle plate is provided with a grid through hole for the surrounding plate to pass through, a suspended plate is formed in the grid through hole, and a hanging rod is fixed to the upper plate at the top of the suspended plate.

[0013] As a further optimization of the present invention, a third magnetic attractor is provided on the side wall of the mesh through hole; the third magnetic attractor is attracted to the first magnetic attractor to provide support when the enclosure is in the raised state.

[0014] As a further optimization of the present invention, the lifting mechanism includes multiple frame units, a main frame for fixing the multiple frame units, and a lifting module for driving the main frame to lift; each frame unit is located in a grid composed of corresponding enclosures, and each frame unit is provided with an electromagnet that matches the second magnetic attractor around its perimeter; the lifting module is fixedly mounted on the middle plate, and the main frame movably penetrates the upper plate.

[0015] The beneficial effects of this invention are as follows: 1. This invention uses a multi-hole plate test platform in conjunction with a detachable motor mounting base to achieve dynamic reconstruction of the test space, simulate the actual installation layout of multiple motors, and significantly improve the ability to evaluate the stability of motor operation under complex electromagnetic and mechanical interference environments.

[0016] 2. This invention adopts a variable enclosure structure composed of multiple panels, which only encloses the area where the motor under test is located as an environmental simulation chamber, rather than adjusting the environment of the entire test platform. This significantly reduces the volume of the controlled space, effectively reduces energy consumption during temperature and humidity regulation, avoids the resource waste caused by the full-area control of traditional environmental test chambers, and has significant energy-saving advantages.

[0017] 3. Each enclosure of the present invention is provided with an airflow inlet and an airflow outlet. The airflow circulation system realizes the efficient delivery and uniform distribution of the environmental medium. By controlling the airflow state parameters of the corresponding enclosure, the simulation of a localized and heterogeneous environment is realized, thereby improving the realism of the test. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the support frame structure of the present invention; Figure 3 This is a schematic diagram of the motor mounting bracket structure of the present invention; Figure 4 This is a schematic diagram of the connection structure between the motor mounting base and the test platform of the present invention; Figure 5 This is a top view of the enclosure structure of the present invention; Figure 6 This is a schematic diagram of the enclosure structure of the present invention; Figure 7 This is a schematic diagram of the lifting mechanism of the present invention.

[0019] In the picture: 1. Test platform; 101. Insertion hole; 102. Tensioning sleeve; 2. Motor mounting base; 201. Fixed base; 202. Rotating body; 203. Fastener; 204. Arc-shaped slot; 205. Insert rod; 206. Magnetic ring; 3. Motor under test; 4. Magnetic powder brake; 5. Enclosure; 501. Air inlet; 502. Air outlet; 503. Air inlet pipe; 504. Air outlet pipe; 505. Solenoid valve; 506. First magnetic suction component; 507. Second magnetic suction component; 508. Observation window; 6. Lifting mechanism; 601. Frame unit; 602. Electromagnet; 603. Main frame; 604. Lifting module; 7. Support frame; 701. Lower plate; 702. Middle plate; 703. Upper plate; 704. Mesh through hole; 705. Suspension plate; 706. Hanging rod. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0021] Example 1 To address the issue that existing motor environmental testing equipment, mostly fixed-cavity environmental test chambers, offers a fixed testing space and uniform environmental parameters, making it difficult to simulate the spatial layout differences and localized non-homogeneous environments encountered in real-world applications involving multiple motors operating collaboratively, please refer to [the relevant documentation / reference]. Figures 1-3 , Figures 5-6 The present invention provides an environmental performance testing device for small high-speed motors, comprising: Test platform 1; At least one motor mounting base 2 is detachably mounted on the test platform 1. The motor mounting base 2 is used to mount the motor under test 3 and the magnetic powder brake 4 to simulate the actual spatial layout and operating status of one or more motors in order to test the motor performance stability and anti-interference ability. Multiple enclosure panels 5 are arranged in a grid pattern above the test platform 1. Adjacent enclosure panels 5 are vertically slidably connected. The enclosure panels 5 are made of heat-insulating and heat-resistant materials (such as aluminum alloy and heat insulation layer). The lifting mechanism 6 is located above the enclosure 5 and is used to drive the enclosure 5 at the target position to descend so that the descending enclosure 5 can be spliced ​​together to form a cover structure that matches the distribution area of ​​the motor mounting base 2. The inside of the cover structure forms a closed chamber for environmental simulation.

[0022] By combining a multi-hole plate test platform 1 with a detachable motor mounting base 2, the test space can be dynamically reconstructed to simulate the actual installation layout of multiple motors, significantly improving the ability to evaluate the stability of motor operation under complex electromagnetic and mechanical interference environments. The variable enclosure structure, which is composed of multiple enclosure plates 5, only encloses the area where the motor under test 3 is located as an environmental simulation chamber, rather than adjusting the environment of the entire test platform 1, greatly reducing the volume of the controlled space and effectively reducing the energy consumption during temperature and humidity adjustment.

[0023] Each enclosure 5 has multiple air inlets 501 on both sides of its lower end and multiple air outlets 502 on both sides of its upper end, forming an upward or convection airflow organization to avoid local dead zones. The top of the enclosure 5 is equipped with an air inlet pipe 503 and an air outlet pipe 504, which are used to connect to external environmental simulation equipment to deliver or output specific environmental media to the enclosed chamber. There are two air inlet pipes 503 and two air outlet pipes 504. Each air inlet pipe 503 is connected to multiple air inlets 501 on the same side of the enclosure 5, and the air inlets 501 on both sides of the enclosure 5 are not connected to each other to achieve independent air supply on both sides. Each air outlet pipe 504 is connected to multiple air outlets 502 on the same side of the enclosure 5, and the air outlets 502 on both sides of the enclosure 5 are not connected to each other to achieve independent air supply on both sides. Solenoid valves 505 are provided on both the air inlet pipe 503 and the air outlet pipe 504.

[0024] like Figures 3-4 As shown, the motor mounting base 2 includes a fixed base 201, and a plug rod 205 is fixedly provided at the bottom of the fixed base 201. The test platform 1 is provided with a plurality of plug holes 101 distributed in a dot matrix pattern. Each plug hole 101 is provided with a tension sleeve 102 at the bottom. The plug rod 205 can be inserted into the plug hole 101 and locked by the tension sleeve 102 to realize the detachable installation of the motor mounting base 2 on the test platform 1. The tension sleeve 102 can be a hydraulic tension sleeve, which expands by injecting hydraulic oil into it and tightly holds the plug rod 205.

[0025] A magnetic ring 206 is provided on the outer periphery of the insertion rod 205, and a sensor is provided on the inner wall of the tensioning sleeve 102. The sensor is used to detect the proximity signal of the magnetic ring 206 to identify the installation position and insertion state of the motor mounting base 2, and to feed the signal back to the control system. The sensor can be a Hall sensor, a magnetoresistive sensor or a proximity switch. The sensor can identify the installation position of the motor mounting base 2 and determine whether the installation is in place.

[0026] like Figures 1-2As shown, the device also includes a support frame 7, which includes a lower plate 701, a middle plate 702, and an upper plate 703. The lower plate 701 is provided with a track for sliding the test platform 1 and for pulling out the test platform 1 to facilitate the installation and removal of the motor mounting base 2. The middle plate 702 is provided with a grid through hole 704 for the enclosure plate 5 to pass through. A suspended plate 705 is formed in the grid through hole 704. The top of the suspended plate 705 is provided with a hanging rod 706 fixed to the upper plate 703. The suspended plate 705 is used to enclose the top of the environmental simulation chamber.

[0027] During initial preparation, the motor under test 3 and the magnetic powder brake 4 are installed on the motor mounting base 2. According to the testing requirements, the motor mounting base 2 is detachably fixed to the designated position on the test platform 1. The horizontal deflection angle of the motor mounting base 2 is adjusted. The control system generates the splicing path of the enclosure structure based on the spatial distribution of the motor mounting base 2. The lifting mechanism 6 drives the corresponding enclosure plate 5 to descend. Adjacent enclosure plates 5 are vertically slidably connected and spliced ​​through side grooves or sealing strips, ultimately forming an enclosure structure surrounding the motor area. During environmental simulation, external environmental simulation equipment (such as constant temperature and humidity machines, air purification systems, gas mixing devices, etc.) is used. The regulated environmental medium (such as hot air, humid air, clean gas, etc.) is delivered into the enclosure 5 through the air inlet pipe 503. The medium enters the closed chamber through the air inlet hole 501, and after heat exchange or environmental interaction with the motor under test 3, it is discharged from the air outlet hole 502 and returned to the equipment through the air outlet pipe 504, forming an airflow circulation system. During performance testing, under the set environmental conditions (such as 85℃ high temperature, 85%RH high humidity, dusty air, etc.), the motor under test 3 is started to run under full load or variable operating conditions, and its current, speed, temperature, vibration, noise and other parameters are collected in real time to evaluate its performance stability and anti-interference ability in harsh environments.

[0028] Example 2 Based on Example 1, in order to simulate the tilting, deflection, or multi-angle installation states that the motor may have in actual application scenarios, and thus more realistically evaluate its operating performance and stability under complex spatial layouts, such as... Figures 3-4 As shown, the motor mounting base 2 also includes a rotating body 202 that is rotatably mounted in the fixed base 201 via a rotating shaft. The motor 3 under test and the magnetic powder brake 4 are mounted on the rotating body 202 and rotate synchronously with it to simulate the multi-angle working conditions of the motor in actual installation. The side of the fixed base 201 is provided with an arc-shaped slot 204. The arc-shaped slot 204 extends in a concentric arc with the rotating shaft of the rotating body 202 as the center. The side of the rotating body 202 is provided with a fastener 203 (such as an internal hexagon screw or a quick-lock pin) that passes through the arc-shaped slot 204 to lock the rotating body 202, so as to realize the positioning and locking of the rotating body 202 at any preset angle.

[0029] When the vertical angle of the motor under test 3 needs to be adjusted, loosen the fastener 203 so that it is disengaged from the threaded hole of the rotating body 202, but still passes through the arc-shaped slot 204 to maintain the connection. Rotate the rotating body 202 manually or through the auxiliary handle to drive the motor under test 3 and the magnetic powder brake 4 to rotate around the shaft together. According to the test requirements, rotate the rotating body 202 to the target angle, tighten the fastener 203 so that it presses against the side wall of the fixed base 201, and use friction and mechanical preload to achieve reliable locking of the rotating body 202.

[0030] In another preferred embodiment, the rotating body 202 can also be configured for electric angle adjustment. Specifically, a micro motor is provided on the side of the fixed base 201. The output shaft of the micro motor is connected to the rotating shaft of the rotating body 202 through a gear transmission mechanism or coupling, for driving the rotating body 202 to rotate automatically around its rotation center. In this embodiment, the arc-shaped slot 204 on the fixed base 201 and the fastener 203 on the rotating body 202 can be eliminated. The positioning and locking of the rotating body 202 adopts the self-locking structure of the micro motor itself. When it is necessary to adjust the vertical angle of the motor 3 under test, the control system automatically releases the holding state, drives the micro motor to rotate the rotating body 202 to the target angle, and re-engages the self-locking or holding mode after reaching the target angle to complete the angle setting.

[0031] Example 3 Based on Embodiment 1 and Embodiment 2, in order to improve the automation level and ease of operation of the system, such as Figures 6-7 As shown, the lower two sides of the enclosure 5 are provided with first magnetic suction components 506, and the upper two sides are provided with second magnetic suction components 507; the middle part of the enclosure 5 is provided with an observation window 508 to facilitate real-time observation of the test status inside the environmental simulation chamber.

[0032] A third magnetic attractor is provided on the side wall of the mesh through hole 704; the third magnetic attractor is attracted to the first magnetic attractor 506 to provide support when the enclosure 5 is in the raised state.

[0033] The lifting mechanism 6 includes multiple frame units 601, a main frame 603 for fixing the multiple frame units 601, and a lifting module 604 for driving the main frame 603 to lift. Each frame unit 601 is located in a grid composed of corresponding enclosure plates 5, and each frame unit 601 is provided with an electromagnet 602 that matches the second magnetic suction member 507. The lifting module 604 is fixed on the middle plate 702, and the main frame 603 movably passes through the upper plate 703. The lifting module 604 can adopt a screw drive mechanism or other linear drive form.

[0034] In the initial state, all the enclosure panels 5 are in the raised position. The first magnetic chuck 506 at their lower end attracts the third magnetic chuck on the side wall of the grid through hole 704 of the support frame 7, thus suspending the enclosure panels 5 stably above the test platform 1. When the test program is started, the control system determines the target enclosure panel 5 to be used in the splicing of the cover structure according to the preset distribution area of ​​the motor mounting base 2, and activates the electromagnet 602 at the corresponding position to generate magnetic attraction with the second magnetic chuck 507 at the upper end of the target enclosure panel 5 and firmly attract it, realizing the mechanical locking between the enclosure panel 5 and the frame unit 601. Subsequently, the lifting module 604 is started, driving the main frame 603 to descend smoothly. 603 drives the frame unit 601, which is fixed to it, to descend synchronously, thereby pulling the locked enclosure 5 down vertically. After descending, the adjacent enclosures 5 are spliced ​​together to form a cover structure that matches the spatial layout of the motor installation area. Its interior constitutes an environmental simulation chamber. After the test is completed, the control system issues a reset command, and the lifting module 604 runs in reverse, driving the main frame 603 and the frame unit 601 to rise, thereby synchronously raising the enclosure 5 to the initial height. When the enclosure 5 rises to the position, the first magnetic suction component 506 re-engages with the third magnetic suction component. At the same time, the electromagnet 602 is de-energized and disengages from the second magnetic suction component 507, completing one complete test cycle.

[0035] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A device for testing the environmental performance of small high-speed motors, characterized in that, include: Test platform (1); At least one motor mounting base (2) is detachably mounted on the test platform (1). The motor mounting base (2) is used to mount the motor under test (3) and the magnetic powder brake (4) to simulate the actual spatial layout and operating status of a single or multiple motors in order to test the motor performance stability and anti-interference ability. Multiple enclosures (5) are arranged in a grid above the test platform (1), and adjacent enclosures (5) are vertically slidably connected. A lifting mechanism (6) is located above the enclosure (5) and is used to drive the enclosure (5) at the target position to descend so that the multiple descending enclosures (5) can be spliced ​​together to form a cover structure that matches the distribution area of ​​the motor mounting base (2). The inside of the cover structure forms a closed chamber for environmental simulation. Each of the enclosure panels (5) has multiple air inlets (501) on both sides of its lower end and multiple air outlets (502) on both sides of its upper end. The top of the enclosure panel (5) is provided with an air inlet pipe (503) and an air outlet pipe (504). The air inlet pipe (503) and the air outlet pipe (504) are used to connect to an external environment simulation device to deliver or output a specific environmental medium to the enclosed chamber. The motor mounting base (2) includes a fixed base (201), and a plug (205) is fixedly provided at the bottom of the fixed base (201). The test platform (1) is provided with a plurality of sockets (101) arranged in a dot matrix pattern. Each socket (101) is provided with a tension sleeve (102) at its bottom. The plug (205) can be inserted into the socket (101) and locked by the tension sleeve (102). The motor mounting base (2) also includes a rotating body (202) that is rotatably mounted in the fixed base (201) via a rotating shaft. The motor (3) to be tested and the magnetic powder brake (4) are mounted on the rotating body (202) and rotate synchronously with it to simulate the multi-angle working conditions of the motor in actual installation. The fixed base (201) has an arc-shaped slot (204) on its side. The arc-shaped slot (204) extends in a concentric arc with the pivot of the rotating body (202) as the center. The rotating body (202) has a fastener (203) that passes through the arc-shaped slot (204) to lock the rotating body (202). Two air inlet pipes (503) and two air outlet pipes (504) are provided. Each air inlet pipe (503) corresponds to multiple air inlets (501) on the same side of the enclosure (5), and the air inlets (501) on both sides of the enclosure (5) are not connected to each other. Each air outlet pipe (504) corresponds to multiple air outlets (502) on the same side of the enclosure (5), and the air outlets (502) on both sides of the enclosure (5) are not connected to each other. Solenoid valves (505) are provided on both the air inlet pipe (503) and the air outlet pipe (504).

2. The environmental performance testing device for small high-speed motors according to claim 1, characterized in that, The outer periphery of the insert (205) is provided with a magnetic ring (206), and the inner wall of the tensioning sleeve (102) is provided with a sensor. The sensor is used to detect the proximity signal of the magnetic ring (206) to identify the installation position and insertion state of the motor mounting base (2) and to feed the signal back to the control system.

3. The environmental performance testing device for small high-speed motors according to claim 1, characterized in that, The lower two sides of the enclosure (5) are provided with first magnetic suction components (506), and the upper two sides are provided with second magnetic suction components (507). An observation window (508) is provided in the middle of the enclosure (5).

4. The environmental performance testing device for small high-speed motors according to claim 3, characterized in that, The device also includes a support frame (7), which includes a lower plate (701), a middle plate (702) and an upper plate (703). The lower plate (701) is provided with a track for the test platform (1) to slide, and the middle plate (702) is provided with a grid through hole (704) for the enclosure plate (5) to pass through. A suspended plate (705) is formed in the grid through hole (704), and a hanging rod (706) fixed to the upper plate (703) is provided on the top of the suspended plate (705).

5. The environmental performance testing device for small high-speed motors according to claim 4, characterized in that, A third magnetic attraction element is provided on the side wall of the mesh through hole (704); The third magnetic attractor engages with the first magnetic attractor (506) to provide support when the enclosure (5) is in an elevated state.

6. The environmental performance testing device for small high-speed motors according to claim 4, characterized in that, The lifting mechanism (6) includes multiple frame units (601), a main frame (603) for fixing the multiple frame units (601), and a lifting module (604) for driving the main frame (603) to lift. Each of the frame units (601) is located within the grid formed by the corresponding enclosures (5), and each frame unit (601) is provided with an electromagnet (602) that matches the second magnetic suction component (507) around its perimeter. The lifting module (604) is fixedly mounted on the middle plate (702), and the main frame (603) is movably inserted through the upper plate (703).

Images