CN104833829B - A kind of motor load tunable arrangement for electromagnetic compatibility test - Google Patents
A kind of motor load tunable arrangement for electromagnetic compatibility test Download PDFInfo
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- CN104833829B CN104833829B CN201510252319.8A CN201510252319A CN104833829B CN 104833829 B CN104833829 B CN 104833829B CN 201510252319 A CN201510252319 A CN 201510252319A CN 104833829 B CN104833829 B CN 104833829B
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Abstract
The present invention relates to a kind of motor load tunable arrangements for electromagnetic compatibility test, which passes through the adjustable torque of hysteresis machine output size of mounted inside, so that being embodied as tested motor applies load of different sizes.The device is adapted to most motor products for needing to carry out load test, has structure simple, the splendid feature of Electro Magnetic Compatibility.It can be used as ancillary equipment completely to be used in the extremely stringent electromagnetic compatibility test of requirement.
Description
Technical field
The present invention relates to a kind of motor load tunable arrangements for electromagnetic compatibility test.The device has load adjustable
Feature is adapted to most motor products for needing to carry out load test, has structure simple, electromagnetic disturbance pole when work
Low, the high feature of electromagnetic immunity ability is can be used completely in the electromagnetic compatibility test high to electrical equipment performance requirement
Environment in.
Background technique
In this day and age, motor has become an indispensable portion in many electronic apparatus and industrial electric product
Part, and part motor type, itself have certain emc issue, for example, series dc motor at work
The process of commutation is had when operation, this has apparent electromagnetic interference phenomenon in the process.These interference phenomenons can be to others
Electronic electric equipment or component have an impact, so standard in terms of specifying corresponding electromagnetic compatibility in the world constrains motor
Correlated performance, with guarantee meet test specification requirement product can together with other electronic electric equipments or component work
Make.
According to the design principle of motor product it is found that its output end have the non-loaded performance on its electromagnetic compatibility influence compared with
Greatly, it is generally the case that the interference generated when the interference that motor generates when with the state of load is than without the state of load is big.
In electromagnetic compatibility test, when sample is motor, it is contemplated that the problems such as volume, mechanical erection, usually very
Difficulty by the actual loading of sample be placed in test environment in, and to sample load when, need to apply a stable torque,
At this moment a kind of device is needed to realize it.
Sample in electromagnetic compatibility test is all electronic and electrical equipment and component, in test using to auxiliary set
What if standby and needs were driven by electricity, the harassing and wrecking which generates are lower than the harassing and wrecking characteristic of sample, and
And the ability for resisting harassing and wrecking is more stronger than sample, otherwise once there is the case where being unsatisfactory for standard, be difficult to distinguish be by
Caused by the quality of sample is unqualified or caused by the quality of ancillary equipment is bad.
When carrying out electromechanical testing, the fixation position of motor as the difference of motor volume and be adjusted, position
It wants to guarantee that motor meets the size required in testing standard apart from designated position after the completion of adjusting.
Summary of the invention
Apply a stable torque to the motor sample in electromagnetic compatibility test to realize, and applies the auxiliary of torque
Equipment cannot bring additional electromagnetic compatibility problem, and the invention patent provides a kind of motor load for electromagnetic compatibility test
Tunable arrangement.
The device is by three fixed plates, a hysteresis machine, a control panel, four support legs and a torque output
Telescopic rod is constituted.There is voltmeter, ammeter, adjustable resistance and power input on control panel.It has a characteristic that
The device by 118,128 and 125, hysteresis machines of the first, second and third fixed plate, 130, control panels 106,
Support leg 134 and a torque output telescopic rod 119 are constituted.Voltmeter 109, ammeter, adjustable electric are provided on control panel
Resistance 111, power input 113 or their combination.In addition to hysteresis machine 130, voltmeter 109, ammeter 110, adjustable resistance
111 and the conducting wire of screw and electrical connection of power input terminal 113 and fixed hysteresis machine contain outside metal, remaining
The all non-metallic components of component.Hysteresis machine 130 provides device as torque, and the size of output torque can be by described
The control circuit that voltmeter 109, ammeter 110, adjustable resistance 111 are constituted.Electric current is flowed into from anode, passes through the ammeter
110 and the adjustable resistance 111, into the input end of motor of the hysteresis machine 130, ammeter can show input power
Electric current is to carry out torque adjusting；Motor output end is connected to cathode, and the voltmeter 109 is connected across among anode and cathode, can be with
Show the voltage of input power.The available adjustable torque range of motor load tunable arrangement is 0.1 N of rice to 1500 Ns meters.
Control panel 106 is mounted on 118 top edges of the first fixed plate, control panel operating surface and first fixed plate 118
Edge is concordant.First fixed plate 118, which is fastened with the hysteresis machine 130 by metal screws, to be installed.Support leg 134 passes through
Second fixed plate 128 has a step in support leg 134, prevents support leg 134 from wearing by the second fixed plate 128
Open-work can block the second fixed plate 128 by terrestrial gravitation and not fall downwards, and is connected to described first by plastics screw and consolidates
Fixed board 118, the top of the hysteresis machine 130 and first fixed plate 118 are fastened by metal screws and are installed, and plastics are passed through
Screw tenses the first fixed plate 118 and support leg 134, and compresses the second fixed plate 128, and 128 center of the second fixed plate is set
It is equipped with hole, the output shaft of the hysteresis machine 130, which stretches to the motor by the hole in 128 center of the second fixed plate, to be born
The lower section for carrying tunable arrangement passes through the first fixed plate 118 and the fixed hysteresis machine 130 of the second fixed plate 128.Support leg
134 pass through second fixed plate 128, are connected to first fixed plate 118 by plastics screw, the hysteresis machine 130
Push down second fixed plate 128, the center that the output shaft of the hysteresis machine 130 passes through second fixed plate 128 in lower section
Hole stretch to the lower section of the motor load tunable arrangement.Torque output telescopic rod 119 is by the rod-shaped of two nonmetallic materials
Object is nested into one another, wherein slotting on a shaft, in addition a shaft is passed through after being nested with fixed card buckle
Fluting, thus make the connection of two shafts, the variation on torque output 119 radical length of telescopic rod, and its axis
To can be with transfer of torque.Torque output telescopic rod 119 passes through the output that the second fixed plate 128 is mounted on the hysteresis machine 130
On axis, it can match from the different mounting heights of the third fixed plate 125.Across second fixed plate 128 and described
The bracket support leg 134 of third fixed plate 125 has scale 127.There are circular hole, the torque in 125 center of third fixed plate
Output telescopic rod 119 can pass through the circular hole and connect with tested motor, deliver torque to the tested motor.The device can
For in electromagnetic compatibility test.
The load loading device obtained by above-mentioned design has minimally used metal parts, to electromagnetic compatibility test
As a result it influences to be preferably minimized, and there is very wide torque adjusting range.And the torque for generating hysteresis machine is completely
It is transferred on the output end of tested motor.Meanwhile the torque that hysteresis machine generates can be by the circuit of control according to test
It needs to be adjusted.
Detailed description of the invention
Attached drawing 1: the structural schematic diagram of the device；
Attached drawing 2: the control circuit schematic diagram of the device.
Specific embodiment
For the structure of the present apparatus as shown in Figure of description 1, the present apparatus is fixed by being provided with first, second and third from top to bottom
106, four support legs 134 of the control panel of hysteresis machine 130, one of plate 118,128 and 125, one and a torque output are stretched
Contracting bar 119 is constituted.Be provided on control panel voltmeter 109, ammeter 110, adjustable resistance 111, power input terminal 113 or
Their various combinations.
First fixed plate 118 is one piece of fixed plate of present apparatus the top, and control panel 106 is mounted on the first fixed plate
118 top edges, control panel operating surface are concordant with 118 edge of the first fixed plate.First fixed plate 118 and hysteresis machine 130
It is fastened and is installed by metal screws, support leg 134 passes through the second fixed plate 128, is connected to the first fixed plate by plastics screw
118, support leg 134 can be four or other requirements.Second fixed plate is arranged between the first and third fixed plate.Support leg
134 pass through second fixed plate 128, process a step above support leg 134, prevent support leg 134 from solid by second
The through hole of fixed board 128 can block the second fixed plate 128 by terrestrial gravitation and not fall downwards, and be connect by plastics screw
To first fixed plate 118, the top of the hysteresis machine 130 and first fixed plate 118 are fastened by metal screws
Installation tenses the first fixed plate 118 and support leg 134 by plastics screw, and compresses the second fixed plate 128, and described second is solid
128 center of fixed board is provided with hole, the hole that the output shaft of the hysteresis machine 130 passes through 128 center of the second fixed plate
The lower section for stretching to the motor load tunable arrangement passes through the fixed magnetic hysteresis electricity of the first fixed plate 118 and the second fixed plate 128
Machine 130.Torque output telescopic rod 119 passes through the second fixed plate 128 and is mounted on the output shaft of hysteresis machine 130.By support leg
134 pass through the circular hole on four angles of third fixed plate 125, and withstand support by the lock screw of third fixed plate side
Foot, for fixing the position of third fixed plate 125.There is a circular hole at 125 center of third fixed plate, and torque exports telescopic rod 119 can be with
Connect across this circular hole with tested motor, delivers torque to tested measured motor.Tested motor is mounted on third and fixes
The lower section of plate 125, the output shaft for being tested motor is upward, is directed at the circular hole at 125 center of third fixed plate.With 134 phase of support leg
The mounting height of third fixed plate 125 even is adjustable.Torque, which exports telescopic rod 119, to be made of two nonmetallic shafts,
Two shafts are nested into one another, wherein slotting on a shaft, with fixation after in addition a shaft is nested with
The opening across fluting is buckled, realizes the connection of two shafts, the structure that two shafts are constituted is that torque output is flexible
Bar 119.The structure realizes the variation on torque output 119 radical length of telescopic rod, and axially can be with transfer of torque.Torque is defeated
Telescopic rod 119 passes through the second fixed plate 128 and is mounted on the output shaft of hysteresis machine 130 out, and it is solid to be adapted to the third
The different mounting heights of fixed board 125.There is a position scale 127 in every support leg.Third fixed plate 125 is referred to position
Scale 127 is set to be fixed at the desired position with set screw.
The hysteresis machine 130 that the present apparatus uses can control output torque according to by the size of current of its coil.Control
Device on panel 106 is responsible for realizing current control.Voltmeter 109 is responsible for the voltage value that monitoring is input to hysteresis machine 130, electricity
Flow table 110 is responsible for the current value that hysteresis machine 130 is flowed through in monitoring, and the adjusting knob by adjusting adjustable resistance 111 can export
Different resistance values realizes the control to size of current in circuit, and input power terminal 113 inputs the electricity to work for hysteresis machine 130
Pressure.The circuit as shown in Figure of description 2, electric current are flowed into from anode, by ammeter 110 and adjustable resistance 111, into magnetic hysteresis electricity
The input end of motor of machine 130；Motor output end is connected to cathode, and voltmeter 109 is connected across among anode and cathode, can show defeated
Enter the voltage of power supply.
In addition to hysteresis machine 130, voltmeter 109, ammeter 110, adjustable resistance 111 and power input terminal in the present apparatus
113 contain outside metal with the screw of fixed hysteresis machine and the conducting wire of electrical connection, all non-metal portions of remaining component
Part.
It can satisfy the requirement of electromagnetic compatibility test according to the motor load tunable arrangement that above-mentioned component and structure manufacture, and
And the torque output of requirement can be provided for motor sample, so that tested motor is in the work close to practical service environment
State, so that test result has more technical referential and estimated value.
Claims (5)
1. a kind of motor load tunable arrangement for electromagnetic compatibility test, it is characterized in that: the device is fixed by first, second and third
Plate (118,128,125), a hysteresis machine (130), a control panel (106), support leg (134) and a torque output
Telescopic rod (119) is constituted；Voltmeter (109), ammeter, adjustable resistance (111), power input are provided on control panel
(113) or their combination；In addition to hysteresis machine (130), voltmeter (109), ammeter (110), adjustable resistance (111) and electricity
The conducting wire of the screw and electrical connection of source input terminal (113) and fixed hysteresis machine contains outside metal, remaining component
All non-metallic components；Its available adjustable torque range is 0.1 N of rice to 1500 Ns meters；
Wherein, the control panel (106) is mounted on the first fixed plate (118) top edges, control panel operating surface with
First fixed plate (118) edge is concordant；First fixed plate (118) and the hysteresis machine (130) pass through metal spiral shell
Silk fastening installation；
The support leg (134) passes through second fixed plate (128), has a step in support leg (134), makes support leg
(134) cannot by the through hole of the second fixed plate (128), can be blocked by terrestrial gravitation the second fixed plate (128) not to
Under fall, and first fixed plate (118) is connected to by plastics screw, the top of the hysteresis machine (130) and described the
One fixed plate (118) is fastened by metal screws and is installed, and tenses the first fixed plate (118) and support leg by plastics screw
(134), and the second fixed plate (128) are compressed, the second fixed plate (128) center is provided with hole, the hysteresis machine (130)
Output shaft the lower section of the motor load tunable arrangement is stretched to by the hole in the second fixed plate (128) center, lead to
Cross the first fixed plate (118) and the second fixed plate (128) fixed described hysteresis machine (130)；
The support leg (134) passes through second fixed plate (128), is connected to first fixed plate by plastics screw
(118), second fixed plate (128), the output of the hysteresis machine (130) are pushed down below the hysteresis machine (130)
Axis stretches to the lower section of the motor load tunable arrangement by the hole in the center of second fixed plate (128)；
Torque output telescopic rod (119) is nested into one another by the shaft of two nonmetallic materials, wherein one
It slots on shaft, fluting is passed through with fixed card buckle after in addition a shaft is nested with, to make two shafts
Connection, the variation on torque output telescopic rod (119) radical length, and its axial direction can be with transfer of torque.
2. motor load tunable arrangement according to claim 1, it is characterized in that: the hysteresis machine (130) is used as torque
Device is provided, the size of output torque can pass through the voltmeter (109), ammeter (110), adjustable resistance (111) structure
At control circuit；Electric current is flowed into from anode, by the ammeter (110) and the adjustable resistance (111), into the magnetic
The input end of motor of stagnant motor (130), ammeter can show the electric current of input power to carry out torque adjusting；Motor output end
It is connected to cathode, the voltmeter (109) is connected across among anode and cathode, can show the voltage of input power.
3. motor load tunable arrangement according to claim 1, it is characterized in that: torque output telescopic rod (119) is worn
The second fixed plate (128) is crossed to be mounted on the output shaft of the hysteresis machine (130), it can be with the third fixed plate (125)
Different mounting heights match.
4. motor load tunable arrangement according to claim 3, it is characterized in that: pass through second fixed plate (128) and
The support leg (134) of the third fixed plate (125) has scale (127).
5. motor load tunable arrangement according to claim 4, it is characterized in that: the third fixed plate (125) center has
Circular hole, torque output telescopic rod (119) can pass through the circular hole and connect with tested motor, and it is tested to deliver torque to this
Try motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510252319.8A CN104833829B (en) | 2015-05-12 | 2015-05-12 | A kind of motor load tunable arrangement for electromagnetic compatibility test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510252319.8A CN104833829B (en) | 2015-05-12 | 2015-05-12 | A kind of motor load tunable arrangement for electromagnetic compatibility test |
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| Publication Number | Publication Date |
|---|---|
| CN104833829A CN104833829A (en) | 2015-08-12 |
| CN104833829B true CN104833829B (en) | 2019-06-14 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107703929B (en) * | 2017-12-06 | 2024-03-29 | 黄河科技学院 | DC brushless motor controller testing device |
| CN110687448B (en) * | 2019-10-08 | 2021-10-15 | 深圳地卜师滑板有限公司 | Wheel hub motor load detection device |
| CN114113857B (en) * | 2021-11-26 | 2022-08-05 | 广东省医疗器械质量监督检验所 | Electromagnetic compatibility test system and electromagnetic compatibility test method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102288682A (en) * | 2011-05-12 | 2011-12-21 | 斯肯威（上海）工业检测科技有限公司 | Device for eliminating motor electromagnetic interference influence of ultrasonic detection robot |
| JP5980213B2 (en) * | 2011-08-30 | 2016-08-31 | 株式会社日立製作所 | Noise analysis system |
| CN102353902B (en) * | 2011-10-13 | 2014-09-10 | 陕西航空电气有限责任公司 | Equivalent test device and method for motor |
| CN202614859U (en) * | 2012-03-27 | 2012-12-19 | 上海市电力公司 | Electromagnetic compatibility testing system |
| CN103149480B (en) * | 2013-02-22 | 2015-06-24 | 同济大学 | Load simulating device for electromagnetic compatibility testing of high-power motor |
| CN203838313U (en) * | 2014-05-07 | 2014-09-17 | 江门市竞晖电器实业有限公司 | Passive environment-friendly adjustable load device |
| CN203870221U (en) * | 2014-05-13 | 2014-10-08 | 吉林省建研科技有限责任公司 | DC motor detection bench |
| CN104101803B (en) * | 2014-07-07 | 2017-02-08 | 中国汽车工程研究院股份有限公司 | EMC performance testing system under motor on-load condition |
| CN204241653U (en) * | 2014-12-12 | 2015-04-01 | 襄阳达安汽车检测中心 | Rain shaving electrical machine load device is used in a kind of EMC test |
| CN204575696U (en) * | 2015-05-12 | 2015-08-19 | 广州市诚臻电子科技有限公司 | A kind of motor load tunable arrangement for electromagnetic compatibility test |
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