CN206294104U - Threephase asynchronous machine starts control device - Google Patents
Threephase asynchronous machine starts control device Download PDFInfo
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- CN206294104U CN206294104U CN201621294409.XU CN201621294409U CN206294104U CN 206294104 U CN206294104 U CN 206294104U CN 201621294409 U CN201621294409 U CN 201621294409U CN 206294104 U CN206294104 U CN 206294104U
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- Prior art keywords
- contact switch
- relay
- asynchronous machine
- threephase asynchronous
- phase
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Abstract
The utility model is related to a kind of threephase asynchronous machine to start control device, including touch-screen, controller, the first relay and the second relay, and controller connects the coil of touch-screen, the coil of the first relay and the second relay respectively；One end of first contact switch, the second contact switch and the 3rd contact switch of the first relay connects threephase asynchronous machine away from first phase line of three phase mains one end, the second phase line and third phase circuit respectively, and the other end is connected with each other；One end of first contact switch, the second contact switch and the 3rd contact switch of the second relay connects threephase asynchronous machine near first phase line of three phase mains one end, the second phase line and third phase circuit respectively, and the other end connects threephase asynchronous machine away from the third phase circuit of three phase mains one end, the first phase line and the second phase line respectively.Operational control threephase asynchronous machine star starts staff or triangle starts on the touchscreen, safe without near alive circuit.
Description
Technical field
The utility model is related to motor technology field, and more particularly to a kind of threephase asynchronous machine starts control device.
Background technology
The Starting mode of threephase asynchronous machine includes that triangle starts and star starts.Generally, transported in threephase asynchronous machine
Need to carry out it switching control of startup optimization mode during row.
The method of traditional control threephase asynchronous machine switching Starting mode is directly using control circuit, by people's work point
After the current Starting mode of analysis, select to change Starting mode of the state for controlling circuit to control phase asynchronous circuit, work people
Member needs to be operated near powered control circuit, security incident easily occurs.
Utility model content
Based on this, it is necessary to regarding to the issue above, there is provided a kind of threephase asynchronous machine for improving processing safety starts
Control device.
A kind of threephase asynchronous machine starts control device, including touch-screen, controller, the first relay and the second relay
Device, first relay and second relay include that coil, the first contact switch, the second contact switch and the 3rd are touched
Point switch, the controller connects the line of the touch-screen, the coil of first relay and second relay respectively
Circle；
One end of first contact switch, the second contact switch and the 3rd contact switch of first relay connects respectively
The threephase asynchronous machine is away from first phase line of three phase mains one end, the second phase line and third phase circuit, described first
The other end of the first contact switch of relay, second contact switch and the 3rd contact switch is connected with each other；
One end of first contact switch, the second contact switch and the 3rd contact switch of second relay connects respectively
The threephase asynchronous machine is close to first phase line, the second phase line and third phase circuit of described three phase mains one end, described
The other end of first contact switch, second contact switch and the 3rd contact switch of the second relay connects respectively
The threephase asynchronous machine is connect away from the third phase circuit of described three phase mains one end, the first phase line and the second phase line；
First contact switch of first relay, the second contact switch and the 3rd contact switch described first after
Closed during the coil electricity of electrical equipment；First contact switch of second relay, the second contact switch and the 3rd contact switch
Closed in the coil electricity of second relay.
Above-mentioned threephase asynchronous machine starts control device, by by the first contact switch of the first relay, the second contact
Switch and the first contact switch of the 3rd contact switch and the second relay, the second contact switch and the 3rd contact switch and three
Phase Induction Machines are connected, and constitute the controlled components circuit of threephase asynchronous machine；Meanwhile, connected respectively by controller touch-screen,
The coil of the coil of the first relay and the second relay, constitutes the control section circuit of threephase asynchronous machine；Controller can root
The touch command exported according to touch-screen controls the power on/off of the coil of the coil and the second relay of the first relay, so as to control
The structure change of controlled components circuit, realizes switching control of the threephase asynchronous machine between star starts and triangle starts.
In this way, staff only needs to operate on the touchscreen, without the powered circuit of close contact, processing safety is high.
Brief description of the drawings
Fig. 1 is the structure chart of threephase asynchronous machine startup control device in an embodiment.
Specific embodiment
With reference to Fig. 1, the threephase asynchronous machine in an embodiment starts control device, including touch-screen 110, controller 120,
First relay and the second relay, the first relay include coil KM1, the first contact switch KM1-1, the second contact switch
KM1-2 and the 3rd contact switch KM1-3, the second relay includes coil KM2, the first contact switch KM2-1, the second contact switch
KM2-2 and the 3rd contact switch KM2-3, controller 120 connects the coil KM1 and second of touch-screen 110, the first relay respectively
The coil KM2 of relay.
First contact switch KM1-1 of the first relay, the second contact switch KM1-2 and the 3rd contact switch KM1-3
One end connects first phase line U2, second phase line V2 and threeth of the threephase asynchronous machine 200 away from three phase mains one end respectively
Phase line W2, the first contact switch KM1-1 of the first relay, the second contact switch KM1-2 and the 3rd contact switch KM1-3
The other end is connected with each other.First contact switch KM2-1, the second contact switch KM2-2 of the second relay and the 3rd contact switch
One end of KM2-3 connects first phase line U1, second phase line V1 of the threephase asynchronous machine 200 near three phase mains one end respectively
With third phase circuit W1；First contact switch KM2-1, the second contact switch KM2-2 of the second relay and the 3rd contact switch
The other end of KM2-3 connects third phase circuit W2, first phase line of the threephase asynchronous machine 200 away from three phase mains one end respectively
U2 and the second phase line V2.
First contact switch KM1-1 of the first relay, the second contact switch KM1-2 and the 3rd contact switch KM1-3 are equal
Closed when the coil KM1 of the first relay is powered；First contact switch KM2-1 of the second relay, the second contact switch
KM2-2 and the 3rd contact switch KM2-3 are closed when the coil KM2 of the second relay is powered.
Three phase mains is used to be powered to threephase asynchronous machine, and three-phase line L1, L2, L3 of three phase mains connect three-phase respectively
First phase line U1, second phase line V1 and third phase circuit W1 of the asynchronous machine 200 near three phase mains.Controller 120 connects
Meet the coil KM1 of the first relay and coil KM2 of the second relay, can control the first relay coil KM1 and second after
The coil KM2 of electrical equipment is powered or powers off.The control touch-screen 110 of controller 120 display control interface so that user is according to control circle
Face operates on touch-screen 110, and output touch command to controller 120, wherein touch command are star enabled instruction or triangle
Shape enabled instruction.For example, including that " star startup " and " triangle startup " two is virtual in the control interface of the display of touch-screen 110
Button, user click on two virtual push buttons in any one, touch-screen 110 exports corresponding star enabled instruction or triangle
Enabled instruction is to controller 120.
After controller 120 receives star enabled instruction, the coil KM1 for controlling the first relay is powered, second relay
Coil KM2 is powered off, and now, the coil KM1 of the first relay is powered and causes the first contact switch KM1-1, the of the first relay
Two contact switch KM1-2 and the 3rd contact switch KM1-3 are closed, and the coil KM2 of the second relay is powered off and caused the second relay
First contact switch KM2-1 of device, the second contact switch KM2-2 and the 3rd contact switch KM2-3 disconnect, threephase asynchronous machine
200 start for star.After controller 120 receives triangle enabled instruction, coil KM1 power-off, second of the first relay are controlled
The coil KM2 of relay is powered, and now, the coil KM1 of the first relay powers off the first contact switch for causing the first relay
KM1-1, the second contact switch KM1-2 and the 3rd contact switch KM1-3 disconnect, and the coil KM2 of the second relay is powered and causes
First contact switch KM2-1 of the second relay, the second contact switch KM2-2 and the 3rd contact switch KM2-3 are closed, this
When, threephase asynchronous machine 200 starts for triangle.
Above-mentioned threephase asynchronous machine starts control device, by by the first contact switch KM1-1, second of the first relay
First contact switch KM2-1, second contact switch of contact switch KM1-2 and the 3rd contact switch KM1 and the second relay
KM2-2 and the 3rd contact switch KM2-3 are connected with threephase asynchronous machine 200, constitute the controlled components electricity of threephase asynchronous machine 200
Road；Meanwhile, connect the coil of touch-screen 110, the coil KM1 of the first relay and the second relay respectively by controller 120
KM2, constitutes the control section circuit of threephase asynchronous machine 200；The touch command that controller 120 can be exported according to touch-screen 110
The power on/off of the coil KM1 of the first relay and the coil KM2 of the second relay is controlled, so as to control the knot of controlled components circuit
Structure changes, and realizes switching control of the threephase asynchronous machine 200 between star starts and triangle starts.In this way, staff
Only need to be operated on touch-screen 110, without the powered circuit of close contact, processing safety is high.
In one embodiment, touch-screen 110 is capacitive touch screen.Capacitive touch screen needs to sense the electricity of human body
Stream, only human body can just be operated on it, can't be corresponding when being touched with other objects, therefore, using capacitive touch
Screen is touched, the possibility of false touch can be avoided, improve the accuracy that threephase asynchronous machine starts control device control.
In one embodiment, the first relay and the second relay are auxiliary reclay.The small power consumption of auxiliary reclay, temperature
Rise low, be not required to outer attached high-power resistance, can arbitrarily install and easy-to-connect, it is easy-to-use.
In one embodiment, controller 120 is PLC (Programmable Logic Controller FPGA controls
Device processed).PLC functions are strong, and the ratio of performance to price is high, can strengthen the practicality that threephase asynchronous machine starts control device.
In the present embodiment, PLC is S7-200 series of PLC.By using powerful S7-200 series of PLC, one can be entered
Step enhancing threephase asynchronous machine starts the practicality of control device.
In one embodiment, with reference to Fig. 1, above-mentioned threephase asynchronous machine starts control device also includes power switch QS, electricity
Source switch QS one end connects three phase mains, other end connection threephase asynchronous machine 200.By in threephase asynchronous machine 200 and three
Whether power switch QS is set between phase power supply, phase asynchronous circuit can be controlled by controlling the on off state of power switch QS
Devote oneself to work, improve the convenience of operation.In the present embodiment, power switch QS is hand switch.
In one embodiment, with reference to Fig. 1, above-mentioned threephase asynchronous machine starts control device also includes three fuses, three
One end connection three phase mains of individual fuse, other end connection threephase asynchronous machine 200.Specifically, fuse FU1 one end connection
The circuit L1 of three phase mains, the other end connects the first phase line U1 of threephase asynchronous machine 200；Fuse FU2 one end connection three
The circuit L2 of phase power supply, the other end connects the second phase line V1 of threephase asynchronous machine 200；Fuse FU3 one end connects three-phase
The circuit L3 of power supply, the other end connects the third phase circuit W1 of threephase asynchronous machine 200.
Three fuses are used to carry out overcurrent protection to threephase asynchronous machine 200, can increase making for threephase asynchronous machine 200
Use the life-span.
In the present embodiment, three fuses connect three phase mains by power switch QS.In this way, fuse is opened in power supply
Electric current under the QS closure states of pass to threephase asynchronous machine 200 carries out overcurrent protection, and reliability is high.
In the present embodiment, with reference to Fig. 1, above-mentioned threephase asynchronous machine starts control device also including thermal protector FR, three
Fuse connects threephase asynchronous machine 200 by thermal protector FR.Thermal protector FR is used to carry out two to threephase asynchronous machine 200
Overcurrent protection again, further increases the service life of threephase asynchronous machine 200.
In one embodiment, above-mentioned threephase asynchronous machine starts control device also includes the power supply electricity of connection controller 120
Source (not shown).Power supply is used to be powered for controller 120.In the present embodiment, power supply is that output voltage is AC220V
Power supply, controller 120 by port Y connect power supply.
In one embodiment, above-mentioned threephase asynchronous machine starts control device also includes that the voice of connection controller 120 is broadcast
Report device (not shown).Controller 120 is after the touch command for receiving the output of touch-screen 110, the coil KM1 of the first relay of control
When energization, the coil KM2 of the second relay are powered off, the first voice messaging of output to voice announcer；Controller 120 is receiving tactile
Touch screen 110 output touch commands after, control the first relay coil KM1 power-off, the second relay coil KM2 be powered
When, the second voice messaging of output to voice announcer；Voice announcer is carried out according to the first voice messaging and the second voice messaging
Voice broadcast.Wherein, the first voice messaging is used to inform that user's current operating conditions start for star that the second voice messaging to be used for
Inform that user's current operating conditions start for triangle.In this way, under user's current operation can be informed in the form of voice broadcast
Starting mode residing for threephase asynchronous machine 200, is easy to user to be operated according to current Starting mode, it is to avoid user is artificial
Maloperation caused by erroneous judgement, so as to improve the reliability and accuracy of control.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore can not be interpreted as the limitation to utility model patent scope.It should be pointed out that for the common skill of this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
Protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (9)
1. a kind of threephase asynchronous machine starts control device, it is characterised in that including touch-screen, controller, the first relay and
Second relay, first relay and second relay include coil, the first contact switch, the second contact switch
With the 3rd contact switch, the controller connect respectively the touch-screen, the coil of first relay and described second after
The coil of electrical equipment；
One end of first contact switch, the second contact switch and the 3rd contact switch of first relay connects described respectively
Threephase asynchronous machine is away from first phase line of three phase mains one end, the second phase line and third phase circuit, first relay
The other end of the first contact switch of device, second contact switch and the 3rd contact switch is connected with each other；
One end of first contact switch, the second contact switch and the 3rd contact switch of second relay connects described respectively
Threephase asynchronous machine is close to first phase line, the second phase line and third phase circuit of described three phase mains one end, described second
The other end of first contact switch, second contact switch and the 3rd contact switch of relay connects institute respectively
Threephase asynchronous machine is stated away from the third phase circuit of described three phase mains one end, the first phase line and the second phase line；
First contact switch of first relay, the second contact switch and the 3rd contact switch are in first relay
Coil electricity when close；First contact switch of second relay, the second contact switch and the 3rd contact switch exist
Closed during the coil electricity of second relay.
2. threephase asynchronous machine according to claim 1 starts control device, it is characterised in that the touch-screen is electric capacity
Formula touch-screen.
3. threephase asynchronous machine according to claim 1 starts control device, it is characterised in that the controller is PLC.
4. threephase asynchronous machine according to claim 3 starts control device, it is characterised in that the PLC is S7-200
Series of PLC.
5. threephase asynchronous machine according to claim 1 starts control device, it is characterised in that also including power switch,
Described power switch one end connects the three phase mains, and the other end connects the threephase asynchronous machine.
6. threephase asynchronous machine according to claim 1 starts control device, it is characterised in that also including three fusing
Device, one end of three fuses connects the three phase mains, and the other end connects the threephase asynchronous machine.
7. threephase asynchronous machine according to claim 6 starts control device, it is characterised in that also including thermal protector,
Three fuses connect the threephase asynchronous machine by the thermal protector.
8. threephase asynchronous machine according to claim 1 starts control device, it is characterised in that also including connecting the control
The power supply of device processed.
9. threephase asynchronous machine according to claim 1 starts control device, it is characterised in that also including connecting the control
The voice announcer of device processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621294409.XU CN206294104U (en) | 2016-11-29 | 2016-11-29 | Threephase asynchronous machine starts control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621294409.XU CN206294104U (en) | 2016-11-29 | 2016-11-29 | Threephase asynchronous machine starts control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206294104U true CN206294104U (en) | 2017-06-30 |
Family
ID=59096120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621294409.XU Expired - Fee Related CN206294104U (en) | 2016-11-29 | 2016-11-29 | Threephase asynchronous machine starts control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206294104U (en) |
-
2016
- 2016-11-29 CN CN201621294409.XU patent/CN206294104U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170630 Termination date: 20201129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |