CN204575696U - 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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- CN204575696U CN204575696U CN201520319788.2U CN201520319788U CN204575696U CN 204575696 U CN204575696 U CN 204575696U CN 201520319788 U CN201520319788 U CN 201520319788U CN 204575696 U CN204575696 U CN 204575696U
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- fixed head
- motor load
- tunable arrangement
- hysteresis machine
- motor
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Abstract
The utility model relates to a kind of motor load tunable arrangement for electromagnetic compatibility test, and this device exports the adjustable moment of torsion of size by the hysteresis machine of mounted inside, thus is embodied as the load that tested motor applies to vary in size.This device can adapt to the motor product that most needs carry out loading test, has structure simple, the feature that Electro Magnetic Compatibility is splendid.Can be used in the middle of the extremely strict electromagnetic compatibility test of requirement as utility appliance completely.
Description
Technical field
The present invention relates to a kind of motor load tunable arrangement for electromagnetic compatibility test.This device has the adjustable feature of load, the motor product that most needs carry out loading test can be adapted to, there is structure simple, during work, electromagnetic disturbance is extremely low, the feature that electromagnetic immunity ability is high, can be used in the middle of the environment to the high electromagnetic compatibility test of electrical equipment performance requirement completely.
Background technology
In this day and age, motor has become indispensable parts in a lot of electronic apparatus and industrial electric product, and part motor type, itself operationally has certain emc issue, such as, series dc motor has the process of commutation when running, have obvious electromagnetic interference (EMI) phenomenon in this process.These interference phenomenons can have an impact to other electronic electric equipment or parts, so the standard specifying corresponding electromagnetic compatibility aspect is in the world to retrain the correlated performance of motor, the product required to ensure to meet test specification can work together with other electronic electric equipment or parts.
According to the design concept of motor product, its output terminal has the non-loaded performance impact to its electromagnetic compatibility comparatively large, and under normal circumstances, the interference that motor produces when being with the state of carrying is larger than the interference not with producing during the state of carrying.
In electromagnetic compatibility test, when sample is motor, consider the problem such as volume, mechanical erection, usually the actual loading of sample is difficult to be positioned in the middle of test environment, and when sample is loaded, need the moment of torsion that applying one is stable, at this moment need a kind of device and it is realized.
Sample in electromagnetic compatibility test is all electronic and electrical equipment and parts, if the utility appliance used in its test is also that needs are power-actuated, so the harassing and wrecking of this utility appliance generation are lower than the harassing and wrecking characteristic of sample, and stronger than sample of ability of opposing harassing and wrecking, otherwise once there is not meeting the situation of standard, very difficult differentiation causes because the defective quality that is that cause or utility appliance of quality of sample is bad.
When carrying out electromechanical testing, the fixed position of motor also can regulate because of the difference of motor volume, wants to ensure that motor distance assigned address meets the size required in testing standard after position adjustments completes.
Summary of the invention
In order to realize applying a stable moment of torsion to the motor sample in electromagnetic compatibility test, and the utility appliance applying moment of torsion can not bring extra electromagnetic compatibility problem, and patent of the present invention provides a kind of motor load tunable arrangement for electromagnetic compatibility test.
This device exports expansion link by three fixed heads, a hysteresis machine, a control panel, four feets and a moment of torsion and forms.Control panel have voltage table, reometer, adjustable resistance and power input.There is following features:
This device exports expansion link 119 by first, second and third fixed head 118,128 and 125, hysteresis machine 130, control panel 106, feet 135 and a moment of torsion and forms.Control panel is provided with voltage table 109, reometer, adjustable resistance 111, power input 113 or their combination.Except hysteresis machine 130, voltage table 109, reometer 110, adjustable resistance 111 and the screw of power input terminal 113 and fixing hysteresis machine and the wire of electrical connection contain except metal, remaining parts is all non-metallic component.Hysteresis machine 130 is as moment of torsion generator, and the size of its output torque can pass through the control circuit of described voltage table 109, reometer 110, adjustable resistance 111 formation.Electric current flows into from positive pole, by described reometer 110 and described adjustable resistance 111, enters the input end of motor of described hysteresis machine 130, and reometer can show the electric current of input power to carry out torque adjustment; Motor output end receives negative pole, and described voltage table 109 is connected across in the middle of positive pole and negative pole, can show the voltage of input power.The available adjustable torque range of motor load tunable arrangement is that 0.1 N of rice is to 1500 Ns of rice.Control panel 106 is arranged on described first fixed head 118 top edges, and control panel operating surface is concordant with described first fixed head 118 edge.Described first fixed head 118 and described hysteresis machine 130 are by the fastening installation of metal screws.Feet 135 is through described second fixed head 128, feet 135 there is a step, make feet 135 not by the through hole of the second fixed head 128, the second fixed head 128 can be blocked by terrestrial gravitation not drop downwards, and receive described first fixed head 118 by plastics screw, the top of described hysteresis machine 130 and described first fixed head 118 are by the fastening installation of metal screws, the first fixed head 118 and feet 135 is strained by plastics screw, and compress the second fixed head 128, described second fixed head 128 central authorities arrange porose, the output shaft of described hysteresis machine 130 stretches to the below of described motor load tunable arrangement by the described hole of described second fixed head 128 central authorities, described hysteresis machine 130 is fixed by the first fixed head 118 and the second fixed head 128.Feet 135 is through described second fixed head 128, described first fixed head 118 is received by plastics screw, described second fixed head 128 is pushed down in the below of described hysteresis machine 130, and the output shaft of described hysteresis machine 130 stretches to the below of described motor load tunable arrangement by the hole of the central authorities of described second fixed head 128.It is together nested against one another by the shaft of two nonmetallic materials that moment of torsion exports expansion link 119, wherein a shaft is slotted, an other shaft rear use nested with it fixes buckle through slotting, thus make the connection of described two shafts, described moment of torsion exports the change on expansion link 119 radical length, and it axially can transfer of torque.Moment of torsion exports expansion link 119 and is arranged on the output shaft of described hysteresis machine 130 through the second fixed head 128, and it can match from the different setting height(from bottom)s of described 3rd fixed head 125.Described support supporting leg 135 through described second fixed head 128 and described 3rd fixed head 125 has scale 127.There is circular hole at 3rd fixed head 125 center, and described moment of torsion exports expansion link 119 and can connect with tested motor through this circular hole, moment of torsion is passed to this tested motor.This device may be used in the middle of electromagnetic compatibility test.
The load charger obtained through above-mentioned design minimally employs metal parts, drops to minimum to electromagnetic compatibility test Influence on test result, and has the moment of torsion setting range of non-constant width.And the moment of torsion that hysteresis machine produces intactly is transferred on the output terminal of tested motor.Meanwhile, the moment of torsion that hysteresis machine produces can be adjusted according to test needs by the circuit controlled.
Accompanying drawing explanation
Accompanying drawing 1: the structural representation of this device;
Accompanying drawing 2: the control circuit schematic diagram of this device.
Specific embodiment
The structure of this device is as shown in Figure of description 1, this device exports expansion link 119 form by being provided with first, second and third fixed head 118,128 and 125, hysteresis machine 130, control panel 106, four feets 135 and moment of torsion from top to bottom.Control panel is provided with voltage table 109, reometer 110, adjustable resistance 111, power input terminal 113 or their various combinations.
First fixed head 118 is one piece of fixed head of this device the top, and control panel 106 is arranged on the first fixed head 118 top edges, and control panel operating surface is concordant with the first fixed head 118 edge.First fixed head 118 and hysteresis machine 130 are by the fastening installation of metal screws, and feet 135 is through the second fixed head 128, and receive the first fixed head 118 by plastics screw, feet 135 can be four or other requirements.Second fixed head is arranged between first and third fixed head.Feet 135 is through described second fixed head 128, a step is processed above feet 135, make feet 135 not by the through hole of the second fixed head 128, the second fixed head 128 can be blocked by terrestrial gravitation not drop downwards, and receive described first fixed head 118 by plastics screw, the top of described hysteresis machine 130 and described first fixed head 118 are by the fastening installation of metal screws, the first fixed head 118 and feet 135 is strained by plastics screw, and compress the second fixed head 128, described second fixed head 128 central authorities arrange porose, the output shaft of described hysteresis machine 130 stretches to the below of described motor load tunable arrangement by the described hole of described second fixed head 128 central authorities, described hysteresis machine 130 is fixed by the first fixed head 118 and the second fixed head 128.Moment of torsion exports expansion link 119 and is arranged on the output shaft of hysteresis machine 130 through the second fixed head 128.By feet 135 through the circular hole on four angles of the 3rd fixed head 125, and withstand feet by the lock screw of the 3rd fixed head side, for fixing the position of the 3rd fixed head 125.There is circular hole at 3rd fixed head 125 center, and moment of torsion exports expansion link 119 and can connect with tested motor through this circular hole, and moment of torsion is passed to detected motor.Tested motor is arranged on the below of the 3rd fixed head 125, and the output shaft of tested motor upwards, aims at the circular hole at the 3rd fixed head 125 center.The setting height(from bottom) of the 3rd fixed head 125 be connected with feet 135 is adjustable.Moment of torsion exports expansion link 119 and is made up of two nonmetal shafts, article two, shaft is together nested against one another, wherein a shaft is slotted, an other shaft rear use nested with it fixes buckle through the opening of slotting, realize the connection of two shafts, the structure of two shaft formations is moment of torsion and exports expansion link 119.This structure achieves the change on moment of torsion output expansion link 119 radical length, and axially can transfer of torque.Moment of torsion exports expansion link 119 and is arranged on the output shaft of hysteresis machine 130 through the second fixed head 128, and it can adapt to the different setting height(from bottom)s of described 3rd fixed head 125.Every bar supporting leg there is a position scale 127.3rd fixed head 125 can be fixed on the position of needs with set screw by reference position scale 127.
The hysteresis machine 130 that this device uses can control output torque according to the size of current by its coil.Device on control panel 106 is responsible for realizing Current Control.The magnitude of voltage that monitoring is input to hysteresis machine 130 is responsible for by voltage table 109, the current value that hysteresis machine 130 is flow through in monitoring is responsible for by reometer 110, by regulating the adjusting knob of adjustable resistance 111 can export the different control of resistance realization to size of current in loop, input power terminal 113 inputs the voltage worked for hysteresis machine 130.Circuit as shown in Figure of description 2, electric current flows into from positive pole, by reometer 110 and adjustable resistance 111, enters the input end of motor of hysteresis machine 130; Motor output end receives negative pole, and voltage table 109 is connected across in the middle of positive pole and negative pole, can show the voltage of input power.
Except hysteresis machine 130, voltage table 109, reometer 110, adjustable resistance 111 and the screw of power input terminal 113 and fixing hysteresis machine and the wire of electrical connection contain except metal in this device, remaining parts is all non-metallic component.
The requirement of electromagnetic compatibility test can be met according to the motor load tunable arrangement of above-mentioned parts and structure manufacture, and the moment of torsion of requirement can be provided to export for motor sample, make tested motor be in duty close to practical service environment, make test result have more technical referential and estimated value.
Claims (11)
1. for a motor load tunable arrangement for electromagnetic compatibility test, it is characterized in that: this device is exported expansion link (119) formed by first, second and third fixed head (118,128,125), hysteresis machine (130), control panel (106), feet (135) and a moment of torsion.Control panel is provided with voltage table (109), reometer, adjustable resistance (111), power input (113) or their combination.Except hysteresis machine (130), voltage table (109), reometer (110), adjustable resistance (111) and the screw of power input terminal (113) and fixing hysteresis machine and the wire of electrical connection contain except metal, remaining parts is all non-metallic component.
2. motor load tunable arrangement according to claim 1, it is characterized in that: described hysteresis machine (130) as moment of torsion generator, the control circuit that the size of its output torque can pass through described voltage table (109), reometer (110), adjustable resistance (111) are formed.Electric current flows into from positive pole, by described reometer (110) and described adjustable resistance (111), enters the input end of motor of described hysteresis machine (130), and reometer can show the electric current of input power to carry out torque adjustment; Motor output end receives negative pole, and described voltage table (109) is connected across in the middle of positive pole and negative pole, can show the voltage of input power.
3. the motor load tunable arrangement according to claim 1-2, is characterized in that: its available adjustable torque range is that 0.1 N of rice is to 1500 Ns of rice.
4. motor load tunable arrangement according to claim 3, it is characterized in that: described control panel (106) is arranged on described first fixed head (118) top edges, control panel operating surface is concordant with described first fixed head (118) edge.Described first fixed head (118) and described hysteresis machine (130) are by the fastening installation of metal screws.
5. motor load tunable arrangement according to claim 4, it is characterized in that: described feet (135) is through described second fixed head (128), feet (135) there is a step, make feet (135) not by the through hole of the second fixed head (128), the second fixed head (128) can be blocked by terrestrial gravitation not drop downwards, and receive described first fixed head (118) by plastics screw, the top of described hysteresis machine (130) and described first fixed head (118) are by the fastening installation of metal screws, the first fixed head (118) and feet (135) is strained by plastics screw, and compress the second fixed head (128), described second fixed head (128) central authorities arrange porose, the output shaft of described hysteresis machine (130) stretches to the below of described motor load tunable arrangement by the described hole of described second fixed head (128) central authorities, by the fixing described hysteresis machine (130) of the first fixed head (118) and the second fixed head (128).
6. motor load tunable arrangement according to claim 5, it is characterized in that: described feet (135) is through described second fixed head (128), described first fixed head (118) is received by plastics screw, described second fixed head (128) is pushed down in the below of described hysteresis machine (130), and the output shaft of described hysteresis machine (130) stretches to the below of described motor load tunable arrangement by the hole of the central authorities of described second fixed head (128).
7. motor load tunable arrangement according to claim 6, it is characterized in that: it is together nested against one another by the shaft of two nonmetallic materials that moment of torsion exports expansion link (119), wherein a shaft is slotted, an other shaft rear use nested with it fixes buckle through slotting, thus make the connection of described two shafts, described moment of torsion exports the change on expansion link (119) radical length, and it axially can transfer of torque.
8. motor load tunable arrangement according to claim 7, it is characterized in that: described moment of torsion exports expansion link (119) and is arranged on the output shaft of described hysteresis machine (130) through the second fixed head (128), and it can match from the different setting height(from bottom)s of described 3rd fixed head (125).
9. motor load tunable arrangement according to claim 8, is characterized in that: the described support supporting leg (135) through described second fixed head (128) and described 3rd fixed head (125) has scale (127).
10. motor load tunable arrangement according to claim 9, it is characterized in that: there is circular hole at described 3rd fixed head (125) center, described moment of torsion exports expansion link (119) and can connect with tested motor through this circular hole, moment of torsion is passed to this tested motor.
11. motor load tunable arrangements according to claim 1-10, is characterized in that: this device may be used in the middle of electromagnetic compatibility test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520319788.2U CN204575696U (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 |
|---|---|---|---|
| CN201520319788.2U CN204575696U (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 |
|---|---|
| CN204575696U true CN204575696U (en) | 2015-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520319788.2U Withdrawn - After Issue CN204575696U (en) | 2015-05-12 | 2015-05-12 | A kind of motor load tunable arrangement for electromagnetic compatibility test |
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| CN (1) | CN204575696U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833829A (en) * | 2015-05-12 | 2015-08-12 | 广州市诚臻电子科技有限公司 | Motor load adjustable device for electromagnetic compatibility test |
| CN105911397A (en) * | 2016-06-03 | 2016-08-31 | 广州市诚臻电子科技有限公司 | Motor loading system used for electromagnetic compatibility test |
-
2015
- 2015-05-12 CN CN201520319788.2U patent/CN204575696U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833829A (en) * | 2015-05-12 | 2015-08-12 | 广州市诚臻电子科技有限公司 | Motor load adjustable device for electromagnetic compatibility test |
| CN105911397A (en) * | 2016-06-03 | 2016-08-31 | 广州市诚臻电子科技有限公司 | Motor loading system used for electromagnetic compatibility test |
| CN105911397B (en) * | 2016-06-03 | 2020-01-14 | 广州市诚臻电子科技有限公司 | Motor loading system for electromagnetic compatibility test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150819 Effective date of abandoning: 20190614 |