CN110554261A - auxiliary device convenient for detecting electric power value in motor dragging experiment - Google Patents
auxiliary device convenient for detecting electric power value in motor dragging experiment Download PDFInfo
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- CN110554261A CN110554261A CN201910745492.XA CN201910745492A CN110554261A CN 110554261 A CN110554261 A CN 110554261A CN 201910745492 A CN201910745492 A CN 201910745492A CN 110554261 A CN110554261 A CN 110554261A
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- motor
- digital display
- auxiliary device
- experiment
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The invention provides an auxiliary device for conveniently detecting electric power values in a motor dragging experiment, which comprises motor dragging experiment equipment, a metal shaping hose and a flow divider; a group of USB expansion interfaces are embedded in the right side adjacent direction of the position of the motor dragging experimental equipment, which is embedded with the digital display type voltage ammeter; be provided with a set of motor drags experiment auxiliary device, and motor drags experiment auxiliary device and constitutes jointly through the digital display type volt ammeter of auxiliary type, USB interface and metal forming hose. This application file drags experiment auxiliary device through the motor and carries out fault judgment to digital display type volt ammeter when the motor drags the experiment, can effectually guarantee the accuracy of the electric power numerical value of record in the experimentation, and also can have fault inspection to the digital display type volt ammeter of installing on the motor drags the experimental facilities simultaneously.
Description
Technical Field
The invention belongs to the technical field of motor dragging experiments, and particularly relates to an auxiliary device for conveniently detecting an electric power value in a motor dragging experiment.
Background
The electric drive course is a common course in professional technology education, and teachers need to use the electric drive teaching experiment table in the course of teaching the electric drive course and students need to use the electric drive teaching experiment table in the course of learning. The "motor and drive" course shall make students master the operation performance of the drive system of ac and dc motors, analyze and calculate, motor selection and experimental method.
For example, application No.: 201120408842.2 the utility model relates to a teaching instrument, in particular to an improved motor and automatic control experimental device. The device adopts an open architecture, comprises a control screen, a cabinet at the lower part of the control screen and component equipment for experiment, and is characterized in that the control screen is provided with a power output panel for providing various power supplies required by the experiment, a power socket externally connected with an instrument power supply is arranged on the right side of the power output panel, the left side of the power output panel is provided with a region for plugging corresponding component equipment, and a motor in the component equipment is a motor capable of simulating the characteristics and parameters of a medium-sized and small-sized motor; the motor power is 100-200W, and the motor characteristics and parameters can accurately simulate a 2-4 kW motor. The utility model discloses can be used for teaching experiments such as motor experiment and power electronics technique experiment, real standard in.
Based on the search of the above patent, and the equipment discovery among the combination prior art, current motor drive experimental facilities when carrying out the motor drive experiment, it can not guarantee the accuracy of its electric power numerical value that detects, because of the digital display type volt-ampere meter that is used for numerical value display on the motor drive experimental facilities now probably because of the unstability of output voltage, lead to digital display type volt-ampere meter complete machine logic function disorder or because the sliding end of semi-adjustable device contact is bad, the wire-wound resistance is moldy and breaks etc. causes and shows the emergence of the inaccurate condition of numerical value, so because of can not guarantee the accuracy of the numerical value that shows on the digital display type volt-ampere meter, the electric power numerical value that detects that record in the experimentation is inaccurate, influence follow-up operation.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides an auxiliary device for conveniently detecting an electric power value in a motor dragging experiment, so as to solve the problems that when the existing motor dragging experiment equipment performs a motor dragging experiment, the accuracy of the detected electric power value cannot be ensured, and the digital display type voltage/current meter displayed on the existing motor dragging experiment equipment may cause disorder and malfunction of the overall logic function of the digital display type voltage/current meter due to instability of output voltage or cause inaccurate display value due to poor contact of the sliding end of a semi-adjustable device, winding resistance mildew and the like, so that the accuracy of the displayed value on the digital display type voltage/current meter cannot be ensured, and the detected electric power value recorded in the experiment process may be inaccurate, thereby affecting subsequent operations.
The invention relates to an auxiliary device for conveniently detecting electric power values in a motor dragging experiment, which has the purpose and the effect and is achieved by the following specific technical means:
An auxiliary device for conveniently detecting electric power values in a motor dragging experiment comprises motor dragging experiment equipment, a rectangular accommodating groove, a digital display type voltage and current meter, a USB expansion interface, a motor dragging experiment auxiliary device, a rubber cushion layer, an auxiliary type digital display type voltage and current meter, a USB interface, a metal shaping hose and a flow divider; a group of USB expansion interfaces are embedded in the right side adjacent direction of the position of the motor dragging experimental equipment, which is embedded with the digital display type voltage ammeter; each group of USB expansion interfaces are connected with a shunt which is arranged in the motor dragging experimental equipment and is connected with the digital display type voltage and current meter adjacent to the left side of the motor dragging experimental equipment through a wire, and the connecting modes of the wires are consistent, so that each group of USB expansion interfaces are connected with the same measuring circuit with the digital display type voltage and current meter adjacent to the left side of the USB expansion interfaces; be provided with a set of motor drags experiment auxiliary device, and motor drags experiment auxiliary device and constitutes jointly through the digital display type volt ammeter of auxiliary type, USB interface and metal forming hose.
Furthermore, the model of the auxiliary digital display type voltage and current meter is consistent with that of a digital display type voltage and current meter embedded and installed on the motor dragging experimental equipment;
Furthermore, the auxiliary digital display type voltage ammeter wire is connected with one USB interface, and the USB interface is matched with the USB expansion interface;
Furthermore, a metal shaping hose with the same length as the auxiliary digital display type voltage and current meter is sleeved on a lead connected between the auxiliary digital display type voltage and current meter and the USB interface, and the head end and the tail end of the metal shaping hose are respectively fixedly connected with the auxiliary digital display type voltage and current meter and the USB interface;
furthermore, the motor drags the adjacent edge part on the left side of the working table top at the front end of the experimental equipment to be provided with the rectangular accommodating groove;
furthermore, the left side surface and the right side surface of the inner end of the rectangular accommodating groove are respectively bonded with one rubber cushion layer, and the left side surface and the right side surface of the inner end of the rectangular accommodating groove are completely covered by the two rubber cushion layers;
furthermore, the motor dragging experiment auxiliary device in the unused state is stored and placed in the rectangular storage groove, and the left end and the right end of the auxiliary digital display type voltage ammeter in the motor dragging experiment auxiliary device in the stored and placed state are respectively in close contact with the rubber cushion layer adhered to the left side surface and the right side surface of the rectangular storage groove.
Compared with the prior art, the invention has the following beneficial effects:
Through motor drive experiment auxiliary device the digital display type volt-ampere meter is judged whether have the trouble when the motor drives the experiment, can effectually guarantee the accuracy of the electric power numerical value of record in the experimentation, and also can drive the digital display type volt-ampere meter of installation on the experimental facilities to the motor simultaneously and have or not trouble inspection.
drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a schematic view of the present invention at a part enlarged in fig. 1.
Fig. 3 is a schematic axial view of the present invention.
Fig. 4 is a schematic view of the present invention at a part B in fig. 3.
Fig. 5 is a schematic diagram of the structure of fig. 4 of the present invention.
Fig. 6 is a schematic structural view of the auxiliary device for motor dragging experiment in a disassembled state.
FIG. 7 is a schematic diagram showing the connection relationship between the digital display type voltmeter, the USB expansion interface and the shunt installed on the experimental equipment for motor dragging according to the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. A motor drags experimental equipment; 101. a rectangular receiving groove; 2. a digital display type voltage ammeter; 3. a USB expansion interface; 4. a motor drags the experimental auxiliary device; 5. a rubber cushion layer; 6. an auxiliary digital display type voltage ammeter; 7. a USB interface; 8. a metal sizing hose; 9. a flow divider.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in figures 1 to 7:
The invention provides an auxiliary device for conveniently detecting electric power values in a motor dragging experiment, which comprises: the device comprises a motor dragging experimental device 1, a rectangular accommodating groove 101, a digital display type voltage ammeter 2, a USB expansion interface 3, a motor dragging experiment auxiliary device 4, a rubber cushion layer 5, an auxiliary digital display type voltage ammeter 6, a USB interface 7, a metal shaping hose 8 and a flow divider 9; a group of USB expansion interfaces 3 are embedded in the front end face of the motor dragging experimental equipment 1 relative to the right side adjacent direction of the part embedded with the digital display type voltage ammeter 2; each group of USB expansion interfaces 3 is also connected with a shunt 9 which is arranged in the motor dragging experimental equipment 1 and is connected with the digital display type voltage and current meter 2 adjacent to the left side of the motor dragging experimental equipment through a wire, and the connecting modes of the wires are consistent, so that each group of USB expansion interfaces 3 is connected with the same measuring circuit as the digital display type voltage and current meter 2 adjacent to the left side of the USB expansion interfaces 3; be provided with a set of motor and drag experiment auxiliary device 4, and motor drags experiment auxiliary device 4 and constitutes jointly through auxiliary digital display formula volt ammeter 6, USB interface 7 and metal forming hose 8.
The auxiliary digital display type voltage and current meter 6 is consistent with the model of the digital display type voltage and current meter 2 embedded and installed in the motor dragging experimental equipment 1, so that the auxiliary digital display type voltage and current meter 6 is guaranteed not to be consistent with the digital display type voltage and current meter 2 in displaying of electric power numerical values due to different models.
wherein, the wire of the auxiliary digital display type voltage ammeter 6 is connected with a USB interface 7, and the USB interface 7 is matched with the USB expansion interface 3, the USB interface 7 connected with the wire of the auxiliary digital display type voltage ammeter 6 in the motor dragging experiment auxiliary device 4 can be inserted into the USB expansion interface 3 adjacent to the right side of the digital display type voltage ammeter 2 displaying the electric power value of the current detected item, because each group of USB expansion interfaces 3 and the digital display type voltage ammeter 2 adjacent to the left side are connected with the same measuring circuit, when the USB interface 7 is inserted, the display end of an auxiliary digital display type voltage ammeter 6 in the motor dragging experiment auxiliary device 4 displays the electric power value of the currently detected item, at this time, the experimenter can compare the electric power value displayed by the display end of the digital display type voltage and current meter 2 with the electric power value displayed by the display end of the auxiliary type digital display type voltage and current meter 6.
Wherein, a metal design hose 8 consistent with its length has been cup jointed on the wire that is connected between auxiliary form digital display formula volt ammeter 6 and the USB interface 7, and metal design hose 8 head and the tail both ends are connected with auxiliary form digital display formula volt ammeter 6 and USB interface 7 are fixed respectively, through the characteristic of metal design hose 8 material, do benefit to USB interface 7 and insert back in the USB expansion interface 3, support auxiliary form digital display formula volt ammeter 6 through metal design hose 8, avoid auxiliary form digital display formula volt ammeter 6 to lead to its overstretch USB interface 7 because of free fall, and also need not the experimenter to hold in the palm auxiliary form digital display formula volt ammeter 6 always through the support of metal design hose 8, and is laborsaving convenient.
Wherein, the motor drags 1 front end table surface left side adjacent edge position of experimental facilities and has seted up a rectangle and accomodate recess 101, and motor drags experiment auxiliary device 4 can accomodate inside rectangle accomodates recess 101 to prevent that motor drags experiment auxiliary device 4 from losing easily because of having no place to place.
wherein, recess 101 is accomodate to the rectangle all bonds in the left and right sides face and has a rubber cushion layer 5, and two rubber cushion layers 5 cover the rectangle and accomodate recess 101 in the left and right sides face completely, grip the motor through two rubber cushion layers 5 jointly and pull experiment auxiliary device 4, avoid the motor to pull experiment auxiliary device 4 and accomodate recess 101 inside and drop from the rectangle because of reasons such as rocking, prevent that the motor from pulling experiment auxiliary device 4 and accomodate recess 101 and cause the fall to lose and lose because of dropping out the rectangle.
Wherein, the motor dragging experiment auxiliary device 4 under the unused state is accommodated in the rectangular accommodating groove 101, and the left and right ends of the auxiliary digital display type voltage ammeter 6 in the motor dragging experiment auxiliary device 4 are respectively in close contact with the rubber cushion 5 adhered to the left and right side surfaces of the rectangular accommodating groove 101 in the accommodating and placing state, the motor dragging experiment auxiliary device 4 is clamped by the two rubber cushion layers 5 together, the motor dragging experiment auxiliary device 4 is prevented from falling from the rectangular accommodating groove 101 due to shaking and the like, the motor dragging experiment auxiliary device 4 is prevented from falling and losing due to falling out of the rectangular accommodating groove 101, and through the characteristic of the rubber cushion 5 material, so when two rubber cushion 5 grasp auxiliary formula digital display formula volt-ampere meter 6 jointly, it can not cause wearing and tearing scheduling problem to auxiliary formula digital display formula volt-ampere meter 6.
When in use:
The front end face of the motor dragging experimental equipment 1 designed in the application document is provided with a group of USB expansion interfaces 3 embedded in the right side adjacent part of the position where the digital display type voltage and current meter 2 is embedded in, and each group of USB expansion interfaces 3 is also connected with a shunt 9 which is arranged in the motor dragging experimental equipment 1 and is connected with the digital display type voltage and current meter 2 adjacent to the left side of the motor dragging experimental equipment through a wire, and the connection modes of the wires are consistent, so that each group of USB expansion interfaces 3 is connected with the same measuring circuit as the digital display type voltage and current meter 2 adjacent to the left side of the motor dragging experimental equipment;
When the motor dragging experiment is started and the electric power value of the corresponding item is detected, in order to ensure the accuracy of the electric power value of the detected item, an experimenter can take out the motor dragging experiment auxiliary device 4 which is placed in the rectangular accommodating groove 101, then the USB interface 7 connected with the lead of the auxiliary digital display type voltage and current meter 6 in the motor dragging experiment auxiliary device 4 is inserted into the USB expansion interface 3 adjacent to the right side of the digital display type voltage and current meter 2 for displaying the electric power value of the current detected item, because each group of USB expansion interfaces 3 is connected with the same measuring circuit with the digital display type voltage and current meter 2 adjacent to the left side, after the USB interface 7 is inserted, the display end of the auxiliary digital display type voltage and current meter 6 in the motor dragging experiment auxiliary device 4 displays the electric power value of the current detected item, at the moment, the experimenter can enable the electric power value displayed by the display end of the digital display type voltage and current meter 2 and the display end of the auxiliary digital display type voltage and comparing the displayed electric power values, if the electric power values are consistent, indicating that the digital display type voltage ammeter 2 has no fault and is in a normal state, and recording the displayed electric power values; if the electric power values are inconsistent, the digital display type volt-ampere meter 2 or the auxiliary digital display type volt-ampere meter 6 is judged to have a fault, an experimenter can start to carry out maintenance judgment, if the auxiliary digital display type volt-ampere meter 6 is judged to have no fault by maintenance, the digital display type volt-ampere meter 2 is judged to have a fault, the displayed electric power value can not be recorded, at the moment, the worker can record the electric power value displayed by the display end of the auxiliary digital display type volt-ampere meter 6 firstly, the faulty digital display type volt-ampere meter 2 is replaced or maintained after the motor dragging experiment is finished, and if the auxiliary digital display type volt-ampere meter 6 is judged to have a fault by maintenance, a new faultless motor is replaced again to drag the experiment auxiliary device 4 to carry out auxiliary detection so as to judge whether the fault exists on the digital display type volt-ampere meter 2;
This application file drags experiment auxiliary device 4 through the motor and carries out the judgement to having or not trouble to digital display voltage ampere meter 2 when the motor drags the experiment, can effectually guarantee the accuracy of the electric power numerical value of record in the experimentation, and also can drag the digital display voltage ampere meter of installation on the experimental facilities 1 to the motor simultaneously and have or not trouble to inspect, play the effect of a sword double-row carving.
the embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (7)
1. The utility model provides a convenient auxiliary device who detects electric power numerical value in motor drags experiment which characterized in that: this convenient auxiliary device who detects electric power numerical value in motor drag experiment includes: the device comprises motor dragging experiment equipment (1), a rectangular accommodating groove (101), a digital display type voltage and current meter (2), a USB expansion interface (3), a motor dragging experiment auxiliary device (4), a rubber cushion layer (5), an auxiliary digital display type voltage and current meter (6), a USB interface (7), a metal shaping hose (8) and a flow divider (9); a group of USB expansion interfaces (3) are embedded in the front end face of the motor dragging experimental equipment (1) relative to the right side adjacent direction of the part where the digital display type voltage ammeter (2) is embedded; each group of USB expansion interfaces (3) is also connected with a shunt (9) which is arranged in the motor dragging experimental equipment (1) and is connected with the digital display type voltage and current meter (2) adjacent to the left side of the motor dragging experimental equipment through a wire, and the connecting modes of the wires are consistent, so that each group of USB expansion interfaces (3) is connected with the same measuring circuit as the digital display type voltage and current meter (2) adjacent to the left side of the USB expansion interfaces; be provided with a set of motor drags experiment auxiliary device (4), and motor drags experiment auxiliary device (4) and constitutes jointly through auxiliary digital display voltage ampere meter (6), USB interface (7) and metal forming hose (8).
2. The auxiliary device for conveniently detecting the electric power value in the motor dragging experiment according to claim 1, is characterized in that: the auxiliary digital display type voltage and current meter (6) is consistent with the model of the digital display type voltage and current meter (2) embedded and installed on the motor dragging experimental equipment (1).
3. the auxiliary device for conveniently detecting the electric power value in the motor dragging experiment according to claim 1, is characterized in that: the auxiliary digital display type voltage ammeter (6) is connected with one USB interface (7) through a wire, and the USB interface (7) is matched with the USB expansion interface (3).
4. The auxiliary device for conveniently detecting the electric power value in the motor dragging experiment according to claim 1, is characterized in that: the metal shaping hose (8) with the same length is sleeved on a lead connected between the auxiliary digital display type voltage ammeter (6) and the USB interface (7), and the head end and the tail end of the metal shaping hose (8) are respectively fixedly connected with the auxiliary digital display type voltage ammeter (6) and the USB interface (7).
5. the auxiliary device for conveniently detecting the electric power value in the motor dragging experiment according to claim 1, is characterized in that: the motor drags the adjacent edge position in front end table surface left side of experimental facilities (1) and offers one the rectangle and accomodates recess (101).
6. The auxiliary device for conveniently detecting the electric power value in the motor dragging experiment according to claim 1, is characterized in that: the rubber cushion layer (5) is bonded to the left side face and the right side face of the inner end of the rectangular containing groove (101), and the rubber cushion layer (5) completely covers the left side face and the right side face of the inner end of the rectangular containing groove (101).
7. The auxiliary device for conveniently detecting the electric power value in the motor dragging experiment according to claim 1, is characterized in that: the motor dragging experiment auxiliary device (4) in the unused state is stored in the rectangular storage groove (101), and the left end and the right end of the auxiliary digital display type voltage ammeter (6) in the motor dragging experiment auxiliary device (4) in the stored state are respectively in close contact with the rubber cushion layer (5) adhered to the left side surface and the right side surface of the rectangular storage groove (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910745492.XA CN110554261A (en) | 2019-08-13 | 2019-08-13 | auxiliary device convenient for detecting electric power value in motor dragging experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910745492.XA CN110554261A (en) | 2019-08-13 | 2019-08-13 | auxiliary device convenient for detecting electric power value in motor dragging experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110554261A true CN110554261A (en) | 2019-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910745492.XA Withdrawn CN110554261A (en) | 2019-08-13 | 2019-08-13 | auxiliary device convenient for detecting electric power value in motor dragging experiment |
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| Country | Link |
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| CN (1) | CN110554261A (en) |
Citations (8)
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|---|---|---|---|---|
| JP2000193698A (en) * | 1998-12-25 | 2000-07-14 | Mitsubishi Electric Corp | Testing device for current detector |
| CN201293776Y (en) * | 2008-10-31 | 2009-08-19 | 比亚迪股份有限公司 | Device for discriminating three-way catalytic converter aging |
| CN202258087U (en) * | 2011-07-29 | 2012-05-30 | 上海理工大学 | Motor speed regulation digital signal processing (DSP) teaching experiment system |
| CN202285156U (en) * | 2011-10-25 | 2012-06-27 | 浙江天煌科技实业有限公司 | Improved motor and automatic control experimental device |
| CN105699818A (en) * | 2016-03-24 | 2016-06-22 | 中国电力科学研究院 | Error measurement apparatus and measurement method for current transformer |
| CN206210211U (en) * | 2016-06-24 | 2017-05-31 | 南京工程学院 | A kind of power electronics and motor drag experiment porch |
| CN107192909A (en) * | 2017-07-12 | 2017-09-22 | 天津市中环三峰电子有限公司 | A kind of inverter function test system and method for testing |
| CN206975110U (en) * | 2017-09-22 | 2018-02-06 | 中国科学院广州能源研究所 | The energy efficiency testing device of motor and its dragging system |
-
2019
- 2019-08-13 CN CN201910745492.XA patent/CN110554261A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000193698A (en) * | 1998-12-25 | 2000-07-14 | Mitsubishi Electric Corp | Testing device for current detector |
| CN201293776Y (en) * | 2008-10-31 | 2009-08-19 | 比亚迪股份有限公司 | Device for discriminating three-way catalytic converter aging |
| CN202258087U (en) * | 2011-07-29 | 2012-05-30 | 上海理工大学 | Motor speed regulation digital signal processing (DSP) teaching experiment system |
| CN202285156U (en) * | 2011-10-25 | 2012-06-27 | 浙江天煌科技实业有限公司 | Improved motor and automatic control experimental device |
| CN105699818A (en) * | 2016-03-24 | 2016-06-22 | 中国电力科学研究院 | Error measurement apparatus and measurement method for current transformer |
| CN206210211U (en) * | 2016-06-24 | 2017-05-31 | 南京工程学院 | A kind of power electronics and motor drag experiment porch |
| CN107192909A (en) * | 2017-07-12 | 2017-09-22 | 天津市中环三峰电子有限公司 | A kind of inverter function test system and method for testing |
| CN206975110U (en) * | 2017-09-22 | 2018-02-06 | 中国科学院广州能源研究所 | The energy efficiency testing device of motor and its dragging system |
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Application publication date: 20191210 |