CN104076209B - Motor detection apparatus - Google Patents
Motor detection apparatus Download PDFInfo
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- CN104076209B CN104076209B CN201410262090.1A CN201410262090A CN104076209B CN 104076209 B CN104076209 B CN 104076209B CN 201410262090 A CN201410262090 A CN 201410262090A CN 104076209 B CN104076209 B CN 104076209B
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- motor
- power supply
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- switch
- phase sequence
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Abstract
The invention discloses a kind of motor detection apparatus, including Phase sequence detection module and the first display lamp；First wiring point of Phase sequence detection module connects the first phase of power supply, and the second wiring point of Phase sequence detection module connects the second phase of power supply, and the 3rd wiring point of Phase sequence detection module connects the third phase of power supply, connects for detecting the phase sequence of power supply；The outfan of Phase sequence detection module and the first switch electrical connection, connect according to the phase sequence of the power supply detected, control the Guan Bi of the first switch；One end of first switch electrically connects with zero line, and the other end of the first switch electrically connects with motor；First end of the first display lamp is electrically connected with the first of power supply, and the second end of the first display lamp electrically connects with motor.It is by the phase sequence of Phase sequence detection module detection power supply, it is ensured that the connection correctness of the phase sequence of power supply, solves the phase sequence of power supply and connects and counter cause motor reversal, the problem affecting the service life of motor.
Description
Technical field
The present invention relates to electrical equipment detection field, particularly relate to a kind of motor detection apparatus.
Background technology
At present, generally electrically connected with A.C. contactor by the lead-out wire of three phase mains when motor detects, hand over
The lead-out wire of stream catalyst is connected with motor, it is achieved to motor for electrical testing.But, three phase mains and motor
All there is phase sequence.In galvanization, it is easy to occur that the phase sequence of motor and the phase sequence of three phase mains connect instead
Cause motor reversal, thus affect the service life of motor.
Summary of the invention
Based on this, it is necessary to when detecting for motor, the phase sequence of motor and the phase sequence of three phase mains occur
Connect the anti-problem causing motor reversal and affect motor service life, it is provided that a kind of motor detection apparatus.
For realizing a kind of motor detection apparatus that the object of the invention provides, refer to including Phase sequence detection module and first
Show lamp；
First wiring point of described Phase sequence detection module connects the first phase of power supply, described Phase sequence detection module
Second wiring point connects the second phase of described power supply, and the 3rd wiring point of described Phase sequence detection module connects described
The third phase of power supply, connects for detecting the phase sequence of described power supply；
The outfan of described Phase sequence detection module and the first switch electrical connection, according to the described power supply detected
Phase sequence connects, and controls the Guan Bi of described first switch；
One end of described first switch electrically connects with zero line, and the other end of described first switch electrically connects with motor；
First end of described first display lamp is electrically connected with the first of described power supply, described first display lamp
Second end electrically connects with described motor.
Wherein in an embodiment, described Phase sequence detection module is phase sequence relay.
Wherein in an embodiment, described motor be internally provided with temperature limiter；
The other end of described first switch is connected end electrical connection with the first of described temperature limiter；
First phase of described power supply is connected end electrical connection with the second of described temperature limiter.
Wherein in an embodiment, also include activate switch；
First end of described activate switch is electrically connected with the first of described power supply, the second of described activate switch
End electrically connects with the first contact of A.C. contactor；
Second contact of described A.C. contactor is connected end electrical connection with the second of described temperature limiter；
Wherein, described activate switch is knock type switch.
Wherein in an embodiment, also include emergency stop switch；
First end of described emergency stop switch is electrically connected with the first of described power supply, and described emergent stopping is opened
The second end closed electrically connects with the first end of described activate switch.
Wherein in an embodiment, the first end of the normally opened contact of described A.C. contactor is opened with described startup
The the first end electrical connection closed；
Second end of described normally opened contact electrically connects with the second end of described activate switch.
Wherein in an embodiment, the first end of the auxiliary normally opened contact of described A.C. contactor and described electricity
The first of source is electrically connected；
Second end of described auxiliary normally opened contact and one end electrical connection of the second display lamp；
The other end of described second display lamp is connected end electrical connection with the first of described temperature limiter.
Wherein in an embodiment, one end of first group of main contact of described A.C. contactor, second group of master
One end of one end of contact and the 3rd group of main contact respectively with the first phase of described power supply, the second of described power supply
Third phase with described power supply electrically connects mutually；
The other end of described first group of main contact of described A.C. contactor, another of described second group of main contact
End and described 3rd group of main contact the other end respectively with the first phase of described motor, the second phase of described motor
Electrically connect with the third phase of described motor.
Wherein in an embodiment, described temperature limiter is thermal protector.
Having the beneficial effect that by arranging Phase sequence detection module and the first display lamp of above-mentioned motor detection apparatus；
First wiring point of Phase sequence detection module, the second wiring point and the 3rd wiring point respectively with the first phase of power supply,
Second phase and third phase electrical connection, connect the most correct for detecting the phase sequence of power supply.Phase sequence detection module
Outfan and the first switch electrical connection, when the phase sequence that Phase sequence detection module detects power supply connects correct, control
System the first switch Guan Bi, thus by the first phase of power supply, the first display lamp, motor, the first switch and zero line
The loop of composition is close access so that the first display lamp is bright, to point out the phase sequence of testing staff's power supply to connect
Correctly, motor can be detected.It was detected by Phase sequence detection module before carrying out electric machines test
To the phase sequence connection of the power supply that motor is powered, and connected by the phase sequence of first display lamp prompting testing staff's power supply
Testing result, it is ensured that the correctness that the phase sequence of the power supply accessing motor connects, thus efficiently avoid
The phase sequence of power supply and the phase sequence of motor connect and counter cause motor reversal, the problem affecting the service life of motor.
Accompanying drawing explanation
Fig. 1 is motor detection apparatus one specific embodiment circuit diagram.
Detailed description of the invention
For making technical solution of the present invention clearer, below in conjunction with drawings and the specific embodiments the present invention done into
One step describes in detail.
See Fig. 1, as the motor detection apparatus of a specific embodiment, including Phase sequence detection module PM and
One display lamp HL1.Wherein:
First wiring point L1 of Phase sequence detection module PM connects the first phase L1 of power supply ', Phase sequence detection module
The second wiring point L2 of PM connects the second phase L2 of power supply ', the 3rd wiring point of Phase sequence detection module PM
L3 connects the third phase L3 ' of power supply.By the first wiring point L1 of Phase sequence detection module PM, the second wiring
Point L2 and the 3rd wiring point L3 is electrically connected the first phase L1 of power supply ', the second phase L2 ' and third phase L3 ',
The phase sequence realizing detection power supply connects the most correct purpose.
The outfan of Phase sequence detection module PM and the first switch K1 electrical connection, according to the phase of the power supply detected
Sequence connects, and controls the Guan Bi of the first switch K1.
Wherein the first switch K1 can be normal open switch.As: when Phase sequence detection module PM detects the phase of power supply
When sequence connects correct, then control the first switch K1 Guan Bi；When Phase sequence detection module PM detects the phase of power supply
When sequence malunion is true, then the first switch K1 remains off.
One end of first switch K1 electrically connects with zero line N, the other end of the first switch K1 and motor M electricity
Connect.
First end of the first display lamp HL1 and the first phase L1 of power supply ' electrically connect, the first display lamp HL1's
Second end electrically connects with motor M.Make the first phase L1 of power supply ', the first display lamp HL1, motor M,
First switch K1 and zero line N forms a loop.
When the phase sequence that Phase sequence detection module PM detects power supply connects correct, then the first switch K1 Guan Bi,
So that the first phase L1 of power supply ', the first display lamp HL1, motor M, the first switch K1 and zero line
The loop of N combination is close access, and the first display lamp HL1 has electric current process, so that the first display lamp
HL1 is bright, and (i.e. the phase sequence of power supply is even to point out the phase sequence of testing staff motor M to be connected correctly with the phase sequence of power supply
Connect consistent with the phase sequence of motor M), the detection of motor M (load the most to be measured) can be carried out.
When the phase sequence malunion that Phase sequence detection module PM detects power supply is true, the first switch K1 keeps disconnected
Open state, by the first phase L1 of power supply ', the first display lamp HL1, motor M, the first switch K1 and zero line
The loop of N combination is open circuit, and the first display lamp HL1 does not works, thus points out the phase sequence of testing staff's power supply even
Connect and may connect instead, need to adjust the position of the connecting line of power supply, till the first display lamp HL1 is bright.Its
Efficiently avoid owing to the phase sequence of power supply and the phase sequence of motor M connect instead, cause the phenomenon that motor M inverts,
Solve the problem shortened the service life of motor M.
Wherein it is desired to explanation, Phase sequence detection module PM can be phase sequence relay.
When connected by the phase sequence of Phase sequence detection module PM detection power supply correct after, motor M can be carried out on
Electro-detection.On motor M is carried out during electro-detection, as the present invention one specific embodiment, motor M
Be internally provided with temperature limiter, the self-protection function in time realizing that in motor M running, temperature is too high.
Wherein, the other end of the first switch K1 is connected end T2 electrical connection with the first of temperature limiter.
First phase of power supply is connected end T1 electrical connection with the second of temperature limiter.
By arranging temperature limiter in the inside of motor M so that when motor M runs under the power supply of power supply,
If motor M overload operation, motor M heating is too high, after temperature reaches the protection value of temperature limiter, and limit temperature
The contact of device disconnects automatically, and motor M is out of service.Treating motor M a period of time out of service, temperature declines
After to a certain extent, the contact of temperature limiter closes automatically, and motor M is in power supply state again, automatically runs.
Wherein, temperature limiter can be thermal protector built-in for motor M.
Although by arranging thermal protector (i.e. temperature limiter) in motor M, it is achieved that motor M temperature is too high
Time self-protection function.But, the repetition start and stop of motor M also can affect the service life of motor M.And
Easily cause the false judgment of the testing result of motor M, affect the result of the test of motor M temperature rise test.
For avoiding motor M to repeat start and stop, cause the problem that motor M testing result is judged by accident, concrete real as one
Execute the motor detection apparatus of example, also include activate switch S1.Wherein, activate switch S1 is knock type switch.
First end 11 of activate switch S1 and the first phase L1 of power supply ' electrically connect, the second of activate switch S1
End 12 electrically connects with the first contact A1 of A.C. contactor KM1.
The second contact A2 of A.C. contactor KM1 is connected end T1 electrical connection with the second of temperature limiter.
By arranging activate switch S1 of knock type between A.C. contactor KM1 and power supply, work as Phase sequence detection
After module PM detects that the phase sequence of power supply connects correctly, artificial presses activate switch S1.Now, power supply
With contactor KM1 path, contactor KM1 obtains electric, and motor M runs.
After motor M runs a period of time, when temperature rises to the protection value of temperature limiter, the contact of temperature limiter
Disconnecting, A.C. contactor KM1 dead electricity, motor M is out of service.When motor M certain time out of service
After, at a temperature of be down to a certain degree.Now, owing to controlling the startup that power supply is connected with A.C. contactor KM1
Switch S1 be knock type switch, it then becomes necessary to artificial presses activate switch S1, just can make power supply with
A.C. contactor KM1 recloses so that A.C. contactor KM1 obtains electric, it is achieved the fortune again of motor M
OK.Which obviate temperature limiter built-in for motor M and recover the automatic operation of rear motor M, it is therefore prevented that motor M
Repetition start and stop, cause to motor M temperature rise test testing result erroneous judgement phenomenon.Meanwhile, also solve
Motor M repeats the problem that start and stop affect the service life of motor M, it is therefore prevented that motor recovers to start to be made automatically
The unnecessary electrical safety accident become.
Here, it should be noted that first end 13 of the normally opened contact KM1 ' of A.C. contactor KM1 with open
First end 11 of dynamic switch S1 electrically connects；Second end 14 of the normally opened contact KM1 ' of A.C. contactor KM1
Electrically connect with the second end 12 of activate switch S1.
The auxiliary normally opened contact KM1 of A.C. contactor KM1 " the first phase L1 of the first end 15 and power supply ' '
Electrical connection；The auxiliary normally opened contact KM1 of A.C. contactor KM1 " ' the second end 16 and the second display lamp HL2
One end electrical connection.
The other end of the second display lamp HL2 is connected end T2 electrical connection with the first of temperature limiter.
Wherein, the second display lamp HL2 is the run indicator of motor M.When the second display lamp HL2 is bright,
Show that motor M is in running status；When the second display lamp HL2 does not works, show that motor M is in stopping
State.
See Fig. 1, it should be noted that A.C. contactor KM1 includes three groups of main contact KM1 ", wherein:
Three groups of main contact KM1 of A.C. contactor KM1 " in 1, second group, one end of first group of main contact
One end 5 of one end 3 of main contact and the 3rd group of main contact respectively with the first phase L1 of power supply ', the second of power supply
Phase L2 ' and the third phase L3 ' electrical connection of power supply.
Wherein, three groups of main contact KM1 of A.C. contactor KM1 " in first group of main contact one end 1,
One end 5 of one end 3 of second group of main contact and the 3rd group of main contact can be realized by the first binding post XT1
The electrical connection of the third phase L3 ' of ', the second phase L2 of power supply ' and power supply respectively with the first phase L1 of power supply.
Three groups of main contact KM1 of A.C. contactor KM1 " in the other end 2 of first group of main contact, second
The other end 6 of the group other end 4 of main contact and the 3rd group of main contact respectively with the first phase, the motor of motor M
Second phase of M and the third phase electrical connection of motor M.
Wherein, three groups of main contact KM1 of A.C. contactor KM1 " in the other end 2 of first group of main contact,
The other end 6 of the other end 4 of second group of main contact and the 3rd group of main contact then can pass through the second binding post
XT2 realize respectively with being electrically connected of the third phase of first phase of motor M, second phase of motor M and motor M
Connect.
Wherein, the third phase of first phase of motor M, second phase of motor M and motor M can be respectively as follows: U
Phase, V phase and W phase.
After Phase sequence detection module PM detects that the phase sequence of power supply connects correctly, press activate switch artificially
S1.After pressing activate switch S1, the first phase L1 of A.C. contactor KM1 and power supply ' connect.Exchange connects
The sucking coil energising of tentaculum KM1 so that the static iron core of A.C. contactor KM1 produces electromagnetic attraction, will
Dynamic iron core adhesive.Due to A.C. contactor KM1 contact system (three groups of main contact KM1 ", normally opened contact
KM1 ' and auxiliary normally opened contact KM1 " ') with dynamic iron core for linkage.Therefore, when dynamic iron core and static iron core adhesive
After, drive three groups of main contact KM1 of A.C. contactor KM1 " (first group of main contact, second group of main contact
With the 3rd group of main contact), normally opened contact KM1 ' and auxiliary normally opened contact KM1 " ' run simultaneously.Three groups of masters touch
Head KM1 ", normally opened contact KM1 ' and assist normally opened contact KM1 " ' all close.Power supply is connected with motor M,
Motor M obtains electric operation.Further, by the first phase L1 of power supply ', the auxiliary of A.C. contactor KM1 is normally opened touches
Point KM1 " ', the second display lamp HL2, temperature limiter first connection end T2, first switch K1 and zero line N
The loop of composition is close access, and the second display lamp HL2 is bright, and prompting motor M is in running status.
When motor M runs a period of time, after temperature rises to the protection value of temperature limiter, temperature limiter is from dynamic circuit breaker
Opening, the sucking coil dead electricity of corresponding A.C. contactor KM1, dynamic iron core separates with static iron core, drives exchange
Three groups of main contact KM1 of catalyst KM1 ", normally opened contact KM1 ' and auxiliary normally opened contact KM1 " ' the most disconnected
Opening, motor M and electric power disconnection, motor M is out of service.Now, by the first phase L1 of power supply ', exchange
The auxiliary normally opened contact KM1 of catalyst KM1 " ', the second display lamp HL2, temperature limiter first connection end
T2, the loop of the first switch K1 and zero line N composition are open circuit.Therefore, the second display lamp HL2 goes out, and carries
Show that motor M is in run-stopping status.
When after motor M a period of time out of service, at a temperature of be down to a certain degree, although now temperature limiter from
Dynamic recovery, but owing to activate switch S1 is knock type switch, it is necessary to press this activate switch S1 artificially,
A.C. contactor KM1 sucking coil just can be made to obtain electric so that three groups of main contacts of A.C. contactor KM1
KM1 ", normally open contact KM1 ' and auxiliary normally open contact KM1 " ' be closed at, it is achieved motor M is again
Run.Which obviate the automatic startup automatically recovering drive motor M of temperature limiter built-in for motor M, prevent
Motor M repeats start and stop affects the phenomenon in its service life, it is ensured that motor M temperature rise test result accurate
Property.
When motor M the abnormal conditions in addition to the protection value that temperature rises to temperature limiter occurs at run duration
Time, run owing to motor M can not be stopped immediately so that motor M continues to remain on shape in abnormal cases
State, can affect the service life of motor M equally.Electric machines test accordingly, as still another embodiment fills
Put, also include emergency stop switch S2.First end 17 of emergency stop switch S2 and the first phase L1 of power supply '
Electrical connection, the second end 18 of emergency stop switch S2 electrically connects with the first end 11 of activate switch S1.
By emergency stop switch S2 is arranged and the first phase L1 of power supply ' and activate switch S1 between, even if
The first phase L1 of power supply ', emergency stop switch S2 and activate switch S1 be in series.When motor M runs
When abnormal conditions occur, emergency stop switch S2 can be controlled and disconnect, force motor M out of service, it is ensured that
Safety that motor M runs and the reliability that motor M detected.Simultaneously, it is to avoid motor M
Misoperation affect the problem in service life of motor M.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for this area
Those of ordinary skill for, without departing from the inventive concept of the premise, it is also possible to make some deformation and
Improving, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended
Claim is as the criterion.
Claims (7)
1. a motor detection apparatus, it is characterised in that include Phase sequence detection module and the first display lamp；
First wiring point of described Phase sequence detection module connects the first phase of power supply, described Phase sequence detection module
Second wiring point connects the second phase of described power supply, and the 3rd wiring point of described Phase sequence detection module connects described
The third phase of power supply, connects for detecting the phase sequence of described power supply；
The outfan of described Phase sequence detection module and the first switch electrical connection, according to the described power supply detected
Phase sequence connects, and controls the Guan Bi of described first switch；
One end of described first switch electrically connects with zero line, and the other end of described first switch electrically connects with motor；
First end of described first display lamp is electrically connected with the first of described power supply, described first display lamp
Second end electrically connects with described motor；
Described motor be internally provided with temperature limiter；
The other end of described first switch is connected end electrical connection with the first of described temperature limiter；
First phase of described power supply is connected end electrical connection with the second of described temperature limiter；
Also include activate switch；
First end of described activate switch is electrically connected with the first of described power supply, the second of described activate switch
End electrically connects with the first contact of A.C. contactor；
Second contact of described A.C. contactor is connected end electrical connection with the second of described temperature limiter；
Wherein, described activate switch is knock type switch.
Motor detection apparatus the most according to claim 1, it is characterised in that described Phase sequence detection module
For phase sequence relay.
Motor detection apparatus the most according to claim 1, it is characterised in that also include that emergent stopping is opened
Close；
First end of described emergency stop switch is electrically connected with the first of described power supply, and described emergent stopping is opened
The second end closed electrically connects with the first end of described activate switch.
4. according to the motor detection apparatus described in claim 1 or 3, it is characterised in that described ac contactor
First end of the normally opened contact of device electrically connects with the first end of described activate switch；
Second end of described normally opened contact electrically connects with the second end of described activate switch.
Motor detection apparatus the most according to claim 4, it is characterised in that described A.C. contactor
First end of auxiliary normally opened contact is electrically connected with the first of described power supply；
Second end of described auxiliary normally opened contact and one end electrical connection of the second display lamp；
The other end of described second display lamp is connected end electrical connection with the first of described temperature limiter.
Motor detection apparatus the most according to claim 5, it is characterised in that described A.C. contactor
One end of one end of first group of main contact, one end of second group of main contact and the 3rd group of main contact is respectively with described
The third phase electrical connection of the first phase of power supply, the second phase of described power supply and described power supply；
The other end of described first group of main contact of described A.C. contactor, another of described second group of main contact
End and described 3rd group of main contact the other end respectively with the first phase of described motor, the second phase of described motor
Electrically connect with the third phase of described motor.
Motor detection apparatus the most according to claim 1, it is characterised in that described temperature limiter is that heat is protected
Protect device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410262090.1A CN104076209B (en) | 2014-06-12 | 2014-06-12 | Motor detection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410262090.1A CN104076209B (en) | 2014-06-12 | 2014-06-12 | Motor detection apparatus |
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| CN104076209A CN104076209A (en) | 2014-10-01 |
| CN104076209B true CN104076209B (en) | 2016-08-17 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106849815B (en) * | 2016-11-22 | 2023-07-21 | 辽宁东鹰航空装备科技股份有限公司 | Motor control circuit |
| CN106896278B (en) * | 2017-04-27 | 2019-07-05 | 湖北睿能电气有限公司 | A kind of intelligence phase sequence identification device |
| CN113777538A (en) * | 2020-06-09 | 2021-12-10 | 光宝电子(广州)有限公司 | Test fixture and detection method using same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09229977A (en) * | 1996-02-20 | 1997-09-05 | Kyushu Electric Power Co Inc | Phase detector for uninterruptible power supply |
| CN101943718A (en) * | 2010-08-27 | 2011-01-12 | 河南省电力公司洛阳供电公司 | Phase sequence detection method and device of three-phase alternating current |
| CN203117305U (en) * | 2013-03-01 | 2013-08-07 | 珠海格力电器股份有限公司 | Three-phase load debug control circuit |
| CN203536956U (en) * | 2013-10-22 | 2014-04-09 | 澳柯玛股份有限公司 | Three-phase alternating current phase sequence error correction device |
| CN204028321U (en) * | 2014-06-12 | 2014-12-17 | 珠海格力电器股份有限公司 | Motor detection apparatus |
-
2014
- 2014-06-12 CN CN201410262090.1A patent/CN104076209B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09229977A (en) * | 1996-02-20 | 1997-09-05 | Kyushu Electric Power Co Inc | Phase detector for uninterruptible power supply |
| CN101943718A (en) * | 2010-08-27 | 2011-01-12 | 河南省电力公司洛阳供电公司 | Phase sequence detection method and device of three-phase alternating current |
| CN203117305U (en) * | 2013-03-01 | 2013-08-07 | 珠海格力电器股份有限公司 | Three-phase load debug control circuit |
| CN203536956U (en) * | 2013-10-22 | 2014-04-09 | 澳柯玛股份有限公司 | Three-phase alternating current phase sequence error correction device |
| CN204028321U (en) * | 2014-06-12 | 2014-12-17 | 珠海格力电器股份有限公司 | Motor detection apparatus |
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