CN201107356Y - New type motor rotor tester - Google Patents
New type motor rotor tester Download PDFInfo
- Publication number
- CN201107356Y CN201107356Y CNU2007200590343U CN200720059034U CN201107356Y CN 201107356 Y CN201107356 Y CN 201107356Y CN U2007200590343 U CNU2007200590343 U CN U2007200590343U CN 200720059034 U CN200720059034 U CN 200720059034U CN 201107356 Y CN201107356 Y CN 201107356Y
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- circuit
- motor rotor
- insulation
- resistance
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- Expired - Fee Related
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- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The utility model relates to a novel motor rotor tester, which comprises a measuring-channel expander circuit used for choosing the piece quantity of a tested motor rotor, a DC resistance measuring circuit used for measuring the bar-to-bar resistance and the welding spot resistance, a leakage current and insulation resistance measuring circuit used for measuring the insulation resistance and the leakage current of an iron core and a winding of the tested motor rotor, an interturn insulation measuring circuit used for measuring the interturn insulation condition of the winding of the tested motor rotor, and an industrial control computer device which is a cerebrum of the whole machine, wherein, the DC resistance measuring circuit, the leakage current and insulation resistance measuring circuit, and the interturn insulation measuring circuit are connected in parallel between the industrial control computer device and the measuring-channel expander circuit. The industrial control computer device is utilized to choose measured parameters and the channel quantity needing to be tested, a control signal of the measuring-channel expander circuit is given, and the relative measuring data are collected to process, so the relative measuring result can be obtained. Hereby, the relative states of DC resistance, leakage current, insulation resistance, interturn insulation, etc. can be measured.
Description
Technical field
The utility model relates to the motor tester, refers in particular to a kind of novel motor rotor test instrument.
Background technology
Existing motor rotor tester is various, wherein function is all comparatively single, for example current instrument for measuring DC resistance, leakage current insulation tester, turn insulation detector etc., so increase that brings operating cost to production firm, also take factory floor space during use, be difficult to allow manufacturing enterprise accept; Given this, industry urgently demands improving a kind of motor rotor tester that has the multifunctional testing effect concurrently urgently.
Summary of the invention
The utility model fundamental purpose is to provide a kind of novel motor rotor test instrument, and it has bar to bar resistance concurrently, solder joint resistance, and leakage current insulation and turn-to-turn insulation are measured effect.
Another purpose of the utility model is to provide a kind of novel motor rotor test instrument, and it can improve bar to bar resistance and weldering resistance resistance measurement precision and stability.
The utility model purpose again is to provide a kind of novel motor rotor test instrument, and it improves test speed and stability, enhances productivity.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
A kind of novel motor rotor test instrument comprises
One measures the passage expanded circuit, in order to select the sheet number of tested motor rotor;
One direct current resistance metering circuit is in order to bar to bar resistance and the solder joint resistance of testing tested motor rotor;
One leakage current insulation measurement circuit is in order to the coil of testing tested motor rotor and the leakage current and the insulation impedance in axle center;
One turn-to-turn insulation metering circuit is in order to the state of insulation between the coil turn of testing tested motor rotor;
One Industry Control computer apparatus;
Above-mentioned dc resistance measurement circuit, leakage current insulation measurement circuit, turn-to-turn insulation metering circuit are parallel to Industry Control computer apparatus and passage expanded circuit, utilize the control of Industry Control computer apparatus and handle the electric signal that each circuit is exported, to obtain the corresponding test data of tested motor rotor.
Above-mentioned measurement passage expanded circuit is that high pressure resistant magnetic sulphur relay constitutes.
Above-mentioned dc resistance measurement circuit comprises
One constant-current source circuit is in order to offer the generation test signal of tested motor rotor;
One differential amplifier circuit amplifies in order to the input/output voltage signal with tested motor rotor;
One A/D sample conversion circuit, itself and differential amplifier circuit electrically connect, and convert digital signal in order to the analog electrical signal that receives differential amplifier circuit; This A/D sample conversion circuit and above-mentioned Industry Control computer apparatus electrically connect, digital signal is offered in the Industry Control computer apparatus test data of handling, analyzing the bar to bar resistance that draws tested motor rotor;
One programmable control circuit, itself and constant voltage power supply circuit, A/D sample conversion circuit electrically connect, and instruct to constant-current source circuit, A/D sample conversion circuit in order to electric signal to be provided, thereby control the work of each circuit; This programmable control circuit and above-mentioned Industry Control computer apparatus electrically connect, to receive Industry Control electric signal that computer apparatus is sent instruction carrying out work.
Above-mentioned leakage current insulation measurement circuit is by programmable control circuit, single-chip microcomputer, the D/A change-over circuit, power amplification circuit, ac-dc conversion circuit order successively is electrically connected, wherein this ac-dc conversion circuit offers tested motor rotor electrical connection, and on the connecting circuit between DC transfer circuit and tested motor rotor and be connected to a tension measuring circuit and a current measurement circuit, this tension measuring circuit, current measurement circuit is controlled by programmable control circuit respectively, and the output terminal of Industry Control computer apparatus is electrically connected with programmable control circuit, in order to the work of control programmable control circuit; Its input end is electrically connected with tension measuring circuit, current measurement circuit, in order to receive and the test electric signal of processes voltage metering circuit, current measurement circuit.
Above-mentioned turn-to-turn insulation metering circuit comprises
One direct current circuit for producing high voltage, it is electrically connected with the electric capacity that can discharge and recharge usefulness at least; This electric capacity offers tested motor rotor serial connection;
One differential amplifier circuit, it is electrically connected on the output terminal between electric capacity and the tested motor rotor, amplifies after gathering the oscillatory extinction electric signal;
One A/D sample conversion circuit, itself and differential amplifier circuit electrically connect, and convert digital signal in order to the analog electrical signal that receives differential amplifier circuit; This A/D sample conversion circuit and above-mentioned Industry Control computer apparatus electrically connect, and handle, analyze the insulation status between the coil that draws tested motor rotor so that digital signal is offered in the Industry Control computer apparatus;
One programmable control circuit, itself and dc high voltage generation circuit, A/D sample conversion circuit electrically connect, and instruct to dc high voltage generation circuit, A/D sample conversion circuit in order to electric signal to be provided, thereby control the work of each circuit; This programmable control circuit and above-mentioned Industry Control computer apparatus electrically connect, to receive Industry Control electric signal that computer apparatus is sent instruction carrying out work.
The utility model advantage is as follows:
1, dc resistance measurement circuit has adopted the differential amplifier circuit and the high-precision A/D sample conversion circuit of low error, to have improved the measuring accuracy and the stability of bar to bar resistance and solder joint resistance.
2, the turn-to-turn insulation metering circuit has increased oscillating capacitance, has extended the hunting time, and has improved AD sample rate (can reach 50MHz), makes the osjcillating ode comparison more accurate careful, is more prone to detect the quality hidden danger that product exists.
3, leakage current insulation measurement circuit has increased multistage electric arc detecting, can find slight shelf depreciation, increases the DC break down voltage test simultaneously, has eliminated the influence of stray capacitance, measures the leakage current of product more accurately.
4, adopted the magnetic sulphur relay extended channel of fast and stable, improved test speed and stability, also can enhance productivity.
Description of drawings
Fig. 1 is the utility model circuitry block diagram;
Fig. 2 is the dc resistance measurement circuit block diagram of the utility model;
Fig. 3 is the leakage current insulation measurement circuit block diagram of the utility model;
Fig. 4 is the turn-to-turn insulation metering circuit block diagram of the utility model;
Fig. 5 is the welding resistance measuring circuit principle schematic of the utility model.
Embodiment
Come the utility model is elaborated below in conjunction with accompanying drawing and specific embodiment:
As shown in Figure 1, a kind of novel motor rotor test instrument comprises and measures passage expanded circuit 1, and in order to select tested motor rotor sheet number, it is that high pressure resistant magnetic sulphur relay constitutes, and to improve test speed and stability, also can enhance productivity; Dc resistance measurement circuit 2 is in order to test the bar to bar resistance solder joint resistance of tested motor rotor; Leakage current insulation measurement circuit 3 is in order to the axle center of testing tested motor rotor and the insulation impedance between the rotor; Turn-to-turn insulation metering circuit 4 is in order to the insulation status between the coil turn of testing tested motor rotor; Industry Control computer apparatus 5;
Wherein: between above-mentioned dc resistance measurement circuit 2, leakage current insulation measurement circuit 3,4 parallel connections of turn-to-turn insulation metering circuit and Industry Control computer apparatus 5 and the passage expanded circuit, utilize 5 controls of Industry Control computer apparatus and handle the electric signal that each circuit is exported, to obtain the corresponding test data of tested motor rotor; Above-mentioned measurement passage expanded circuit 1 electrically connects with dc resistance measurement circuit 2, leakage current insulation measurement circuit 3, turn-to-turn insulation metering circuit 4.
In conjunction with shown in Figure 2, above-mentioned dc resistance measurement circuit 2 comprises again: constant-current source circuit 21, in order to offer the generation test signal of tested motor rotor; Differential amplifier circuit 22 amplifies in order to the input/output voltage signal with tested motor rotor; A/D sample conversion circuit 23, itself and differential amplifier circuit 22 electrically connect, and convert digital signal in order to the analog electrical signal that receives differential amplifier circuit 22; This A/D sample conversion circuit 23 electrically connects with above-mentioned Industry Control computer apparatus 5, digital signal is offered in the Industry Control computer apparatus 5 test data of handling, analyzing the bar to bar resistance that draws tested motor rotor; Programmable control circuit 24, itself and constant-current source circuit 21, A/D sample conversion circuit 23 electrically connect, and instruct to constant-current source circuit 21, A/D sample conversion circuit 23 in order to electric signal to be provided, thereby control the work of each circuit; This programmable control circuit 24 electrically connects with above-mentioned Industry Control computer apparatus 5, with receive Industry Control computer apparatus 5 the electric signal that sent instruction carrying out work.Therefore, dc resistance measurement circuit 2 has adopted the differential amplifier circuit 22 and the high-precision A/D sample conversion circuit 23 of low error, to have improved the measuring accuracy and the stability of bar to bar resistance and solder joint resistance.The measuring principle of solder joint resistance is seen Fig. 5, successively by formula V1a=I
1R
1+ Ir
1And V
2A=1
1R
1+ Ir
1, V
1b=I
2R
1And V
2b=I
2R
2, I=Vref/Rref, r
1=(V
1a-(V
1b/ V
2b) * V
2A)/(Vref/Rref) can calculate solder joint resistance.
Above-mentioned leakage current insulation measurement circuit 3 is by programmable control circuit 31, single-chip microcomputer 32, D/A change-over circuit 33, power amplification circuit 34, ac-dc conversion circuit 35 order successively is electrically connected, wherein this ac-dc conversion circuit 35 offers tested motor rotor electrical connection, and on the connecting circuit between ac-dc conversion circuit 35 and tested motor rotor and be connected to a tension measuring circuit 36 and a current measurement circuit 37, this tension measuring circuit 36, current measurement circuit 37 is respectively by programmable control circuit 31 controls, and the output terminal of control industrial computer device 5 is electrically connected with programmable control circuit 31, in order to 31 work of control programmable control circuit; Its input end is electrically connected with tension measuring circuit 36, current measurement circuit 37, in order to receive and the test electric signal of processes voltage metering circuit 36, current measurement circuit 37.So leakage current insulation measurement circuit has increased multistage electric arc detecting, can find slight shelf depreciation, increases the DC break down voltage test simultaneously, has eliminated the influence of stray capacitance, measures the leakage current of product more accurately.
Above-mentioned turn-to-turn insulation metering circuit 4 comprises a direct current circuit for producing high voltage 41, and it is electrically connected with the electric capacity 42 that can discharge and recharge usefulness at least; This electric capacity 42 offers tested motor rotor serial connection; One differential amplifier circuit 43, it is electrically connected on the output terminal between electric capacity 42 and the tested motor rotor, amplifies after gathering the oscillatory extinction electric signal; One A/D sample conversion circuit 44, itself and differential amplifier circuit 43 electrically connect, and convert digital signal in order to the analog electrical signal that receives differential amplifier circuit 43; This A/D sample conversion circuit 44 electrically connects with above-mentioned Industry Control computer apparatus 5, handles, analyzes the insulation status between the coil that draws tested motor rotor so that digital signal is offered in the Industry Control computer apparatus 5; One programmable control circuit 45, itself and dc high voltage generation circuit 41, A/D sample conversion circuit 44 electrically connect, and instruct to dc high voltage generation circuit 41, A/D sample conversion circuit 44 in order to electric signal to be provided, thereby control the work of each circuit; This programmable control circuit 45 electrically connects with above-mentioned Industry Control computer apparatus 5, with receive Industry Control computer apparatus 5 the electric signal that sent instruction carrying out work.Therefore, this turn-to-turn insulation metering circuit 4 has increased oscillating capacitance 42, thereby has extended the hunting time, and has improved AD sample rate (can reach 50MHz), makes the osjcillating ode comparison more accurate careful, is more prone to detect the quality hidden danger that product exists.
The utility model design focal point is to be electrically connected on this Industry Control computer apparatus by dc resistance measurement circuit, leakage current insulation measurement circuit, the parallel connection of turn-to-turn insulation metering circuit, utilize this Industry Control computer apparatus control and handle the electric signal that each circuit is exported, to obtain the corresponding test data of tested motor rotor; Electrically connect with dc resistance measurement circuit, leakage current insulation measurement circuit, turn-to-turn insulation metering circuit by measuring the passage expanded circuit again, and then reach and have direct current resistance, leakage current insulation and turn-to-turn insulation measurement effect concurrently.
The above, it only is the preferred embodiment of a kind of novel motor rotor test of the utility model instrument, be not that technical scope of the present utility model is imposed any restrictions, so every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any trickle modification, equivalent variations and modification that above embodiment did.
Claims (5)
1, a kind of novel motor rotor test instrument is characterized in that: comprise
One measures the passage expanded circuit, in order to select tested motor rotor state;
One direct current resistance metering circuit is in order to bar to bar resistance and the solder joint resistance of testing tested motor rotor;
One leakage current insulation measurement circuit is in order to the axle center of testing tested motor rotor and the insulation impedance between the coil;
One turn-to-turn insulation metering circuit is in order to the insulation status between the coil turn of testing tested motor rotor;
One Industry Control computer apparatus;
Above-mentioned dc resistance measurement circuit, leakage current insulation measurement circuit, turn-to-turn insulation metering circuit are parallel on the Industry Control computer apparatus and between the passage expanded circuit, utilize the control of Industry Control computer apparatus and handle the electric signal that each circuit is exported, to obtain the corresponding test data of tested motor rotor; Above-mentioned measurement passage expanded circuit is controlled by the Industry Control computer.
2, a kind of novel motor rotor test instrument according to claim 1 is characterized in that: above-mentioned measurement passage expanded circuit is that magnetic sulphur relay constitutes.
3, a kind of novel motor rotor test instrument according to claim 1, it is characterized in that: above-mentioned dc resistance measurement circuit comprises
One constant-current source circuit is in order to offer the generation test signal of tested motor rotor;
One differential amplifier circuit amplifies in order to the input/output voltage signal with tested motor rotor;
One A/D sample conversion circuit, itself and differential amplifier circuit electrically connect, and convert digital signal in order to the analog electrical signal that receives differential amplifier circuit; This A/D sampling shifting circuit and above-mentioned Industry Control computer apparatus electrically connect, digital signal is offered in the Industry Control computer apparatus test data of handling, analyzing the bar to bar resistance that draws tested motor rotor;
One programmable control circuit, itself and constant-current source circuit, A/D sample conversion circuit electrically connect, and instruct to constant-current source circuit, A/D sample conversion circuit in order to electric signal to be provided, thereby control the work of each circuit; This programmable control circuit and above-mentioned Industry Control computer apparatus electrically connect, to receive Industry Control electric signal that computer apparatus is sent instruction carrying out work.
4, a kind of novel motor rotor test instrument according to claim 1, it is characterized in that: above-mentioned leakage current insulation measurement circuit is by programmable control circuit, single-chip microcomputer, the D/A change-over circuit, power amplification circuit, ac-dc conversion circuit order successively is electrically connected, wherein this ac-dc conversion circuit offers tested motor rotor electrical connection, and on the connecting circuit between DC transfer circuit and tested motor rotor and be connected to a tension measuring circuit and a current measurement circuit, this tension measuring circuit, current measurement circuit is controlled by programmable control circuit respectively, and the output terminal of control industrial computer device is electrically connected with programmable control circuit, in order to the work of control programmable control circuit; Its input end is electrically connected with tension measuring circuit, current measurement circuit, in order to receive and the test electric signal of processes voltage metering circuit, current measurement circuit.
5, a kind of novel motor rotor test instrument according to claim 1, it is characterized in that: above-mentioned turn-to-turn insulation metering circuit comprises
One direct current circuit for producing high voltage, it is electrically connected with the electric capacity that can discharge and recharge usefulness at least; This electric capacity offers tested motor rotor serial connection;
One differential amplifier circuit, it is electrically connected on the output terminal between electric capacity and the tested motor rotor, amplifies after gathering the oscillatory extinction electric signal;
One A/D sample conversion circuit, itself and differential amplifier circuit electrically connect, and convert digital signal in order to the analog electrical signal that receives differential amplifier circuit; This A/D sample conversion circuit and above-mentioned Industry Control computer apparatus electrically connect, and handle, analyze the insulation status between the coil that draws tested motor rotor so that digital signal is offered in the Industry Control computer apparatus;
One programmable control circuit, itself and dc high voltage generation circuit, A/D sample conversion circuit electrically connect, and instruct to dc high voltage generation circuit, A/D sample conversion circuit in order to electric signal to be provided, thereby control the work of each circuit; This programmable control circuit and above-mentioned Industry Control computer apparatus electrically connect, to receive Industry Control electric signal that computer apparatus is sent instruction carrying out work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200590343U CN201107356Y (en) | 2007-11-01 | 2007-11-01 | New type motor rotor tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200590343U CN201107356Y (en) | 2007-11-01 | 2007-11-01 | New type motor rotor tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201107356Y true CN201107356Y (en) | 2008-08-27 |
Family
ID=39959165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200590343U Expired - Fee Related CN201107356Y (en) | 2007-11-01 | 2007-11-01 | New type motor rotor tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201107356Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944747A (en) * | 2012-11-12 | 2013-02-27 | 镇江市松协电器有限公司 | Insulation resistance tester |
| TWI460450B (en) * | 2011-01-21 | 2014-11-11 | Hon Hai Prec Ind Co Ltd | Motor testing apparatus |
| CN105466639A (en) * | 2016-01-07 | 2016-04-06 | 杭州高品自动化设备有限公司 | Rotor smoothness assembly leakage table |
-
2007
- 2007-11-01 CN CNU2007200590343U patent/CN201107356Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI460450B (en) * | 2011-01-21 | 2014-11-11 | Hon Hai Prec Ind Co Ltd | Motor testing apparatus |
| CN102944747A (en) * | 2012-11-12 | 2013-02-27 | 镇江市松协电器有限公司 | Insulation resistance tester |
| CN105466639A (en) * | 2016-01-07 | 2016-04-06 | 杭州高品自动化设备有限公司 | Rotor smoothness assembly leakage table |
| CN105466639B (en) * | 2016-01-07 | 2017-12-12 | 杭州高品自动化设备有限公司 | Rotor smoothness assembly leaks platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080827 Termination date: 20121101 |