CN204696962U - A kind of starting of three phases motor controller - Google Patents
A kind of starting of three phases motor controller Download PDFInfo
- Publication number
- CN204696962U CN204696962U CN201520425026.0U CN201520425026U CN204696962U CN 204696962 U CN204696962 U CN 204696962U CN 201520425026 U CN201520425026 U CN 201520425026U CN 204696962 U CN204696962 U CN 204696962U
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- relay
- phase
- contact
- diode
- resistance
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Abstract
The utility model discloses a kind of starting of three phases motor controller, comprise relay J 1, relay J 2, resistance R1 and electric capacity C1, described resistance R1's once connect the A phase of three-phase alternating current, the other end of key switch K1, the contact J2-1 of relay J 2 and the contact J2-2 of relay J 2, resistance R1 connects electric capacity C1, the negative electrode of diode D1 and the anode of diode D2.The utility model starting of three phases motor controller circuitry has abandoned complicated chip type structure; only adopt basic components and parts composition; not only greatly reduce cost of manufacture, simplify circuit structure; and solve the problem that chip is easily disturbed; circuit can when three phase electric machine finds phase sequence wrong timely open circuit; protection motor, also has phase failure protection function simultaneously, therefore has that structure is simple, the advantage of diverse in function, strong interference immunity.
Description
Technical field
The utility model relates to a kind of motor starter, specifically a kind of starting of three phases motor controller.
Background technology
Three phase electric machine is the industrial important machinery of modernization, and it has the power set that the advantage such as efficient, energy-conservation, performance is good, it is little to vibrate, noise is low, the life-span is long, reliability is high, easy to maintenance, starting torque is large is widely used in various plant equipment.But much to the uncomprehending people of circuit when connection three phase electric machine circuit easily by the phase sequence wrong of motor; and wrong is met and is caused three phase electric machine not reach original rated current; motor is exerted oneself not; when electric current is excessive, enamelled wire heating is serious, and insulation premature aging, finally causes motor coil to burn out; the protective device of electric motor starting is particularly important; the most complex structure of the protective device that market occurs, function singleness, interference free performance are poor, the defect that response speed is slow.
Utility model content
The purpose of this utility model is to provide a kind of starting of three phases motor controller of highly sensitive, stable performance, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of starting of three phases motor controller, comprise relay J 1, relay J 2, resistance R1 and electric capacity C1, described resistance R1's once connect the A phase of three-phase alternating current, key switch K1, the contact J2-1 of the relay J 2 and contact J2-2 of relay J 2, the other end of resistance R1 connects electric capacity C1, the negative electrode of diode D1 and the anode of diode D2, the other end of electric capacity C1 connects relay J 2, the B phase of three-phase alternating current and the contact J2-3 of relay J 2, the other end of the contact J2-2 of relay J 2 connects the port U of three phase electric machine, the anode of diode D1 connects the anode of diode D3, the anode of diode D5 and resistance R3, the negative electrode contact resistance R2 of diode D3 and the anode of diode D4, the other end of resistance R2 connects the C phase of three-phase alternating current and the contact J2-4 of relay J 2, the other end of the contact J2-3 of relay J 2 connects the port V of three phase electric machine, the other end of the contact J2-4 of relay J 2 connects the port W of three phase electric machine, the other end of the negative electrode contact resistance R3 of diode D2, electric capacity C2, the negative electrode of relay J 1 and diode D4, the negative electrode of diode D5 connects the other end of electric capacity C2 and the other end of relay J 1, the other end of button K1 connects the other end of contact J2-1 and the contact J1-1 of relay J 1 of relay J 2, the other end of the contact J1-1 of relay J 1 connects the other end of relay J 2.
As preferred version of the present utility model: described resistance R3 is piezo-resistance.
As preferred version of the present utility model: described relay J 1 and relay J 2 are normally opened contact relay.
Compared with prior art; the beneficial effects of the utility model are: the utility model starting of three phases motor controller circuitry has abandoned complicated chip type structure; only adopt basic components and parts composition; not only greatly reduce cost of manufacture, simplify circuit structure; and solve the problem that chip is easily disturbed; circuit can when three phase electric machine finds phase sequence wrong timely open circuit; protection motor; also there is phase failure protection function simultaneously, therefore have that structure is simple, the advantage of diverse in function, strong interference immunity.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of starting of three phases motor controller.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, a kind of starting of three phases motor controller, comprise relay J 1, relay J 2, resistance R1 and electric capacity C1, described resistance R1's once connect the A phase of three-phase alternating current, key switch K1, the contact J2-1 of the relay J 2 and contact J2-2 of relay J 2, the other end of resistance R1 connects electric capacity C1, the negative electrode of diode D1 and the anode of diode D2, the other end of electric capacity C1 connects relay J 2, the B phase of three-phase alternating current and the contact J2-3 of relay J 2, the other end of the contact J2-2 of relay J 2 connects the port U of three phase electric machine, the anode of diode D1 connects the anode of diode D3, the anode of diode D5 and resistance R3, the negative electrode contact resistance R2 of diode D3 and the anode of diode D4, the other end of resistance R2 connects the C phase of three-phase alternating current and the contact J2-4 of relay J 2, the other end of the contact J2-3 of relay J 2 connects the port V of three phase electric machine, the other end of the contact J2-4 of relay J 2 connects the port W of three phase electric machine, the other end of the negative electrode contact resistance R3 of diode D2, electric capacity C2, the negative electrode of relay J 1 and diode D4, the negative electrode of diode D5 connects the other end of electric capacity C2 and the other end of relay J 1, the other end of button K1 connects the other end of contact J2-1 and the contact J1-1 of relay J 1 of relay J 2, the other end of the contact J1-1 of relay J 1 connects the other end of relay J 2.
Resistance R3 is piezo-resistance.Relay J 1 and relay J 2 are normally opened contact relay.
Operation principle of the present utility model is: three phase mains A phase and B phase are connected to resistance Rl and electric capacity c1 respectively.Rectification circuit C phase being connected to resistance R2 and being made up of diode D1-D4, the VD of rectifier bridge, through voltage stabilizing didoe D5, is powered to relay J 1, and electric capacity C2 plays direct voltage on smoothing coil.Piezo-resistance R3 not conducting under normal circumstances.When there is overvoltage in rectification bridge output end, R3 conducting, absorb overvoltage, to protect voltage-stabiliser tube D5, relay J 1 and electric capacity C2 do not damage, thus guarantee that relay J 1 is not by misoperation, as three phase mains A, B, when C is forward phase sequence, voltage in relay J 1 is about 23V, J1 obtains electric adhesive, its normally opened contact J1-1 closes, the K1 that now only need push button can connect control circuit power supply, then relay J 2 conducting, the equal adhesive of its normally opened contact J2-1 ~ J2-4, actuating motor, enter self-locking state, now unclamping button K1 circuit also can normally work, as three phase mains A, during B and C phase sequence wrong, voltage in relay J 1 is about 5V, can not adhesive, its normally opened contact J1-1 remains open, control circuit power supply can not be connected, motor does not start.When the disconnected phase time of C phase, rectifier bridge just will not have direct voltage output without input ac voltage yet, and relay J 1 is without electricity, and its normally opened contact disconnects, and therefore circuit also has both phase failure protection function.
Claims (3)
1. a starting of three phases motor controller, comprises relay J 1, relay J 2, resistance R1 and electric capacity C1, it is characterized in that, described resistance R1's once connect the A phase of three-phase alternating current, key switch K1, the contact J2-1 of the relay J 2 and contact J2-2 of relay J 2, the other end of resistance R1 connects electric capacity C1, the negative electrode of diode D1 and the anode of diode D2, the other end of electric capacity C1 connects relay J 2, the B phase of three-phase alternating current and the contact J2-3 of relay J 2, the other end of the contact J2-2 of relay J 2 connects the port U of three phase electric machine, the anode of diode D1 connects the anode of diode D3, the anode of diode D5 and resistance R3, the negative electrode contact resistance R2 of diode D3 and the anode of diode D4, the other end of resistance R2 connects the C phase of three-phase alternating current and the contact J2-4 of relay J 2, the other end of the contact J2-3 of relay J 2 connects the port V of three phase electric machine, the other end of the contact J2-4 of relay J 2 connects the port W of three phase electric machine, the other end of the negative electrode contact resistance R3 of diode D2, electric capacity C2, the negative electrode of relay J 1 and diode D4, the negative electrode of diode D5 connects the other end of electric capacity C2 and the other end of relay J 1, the other end of button K1 connects the other end of contact J2-1 and the contact J1-1 of relay J 1 of relay J 2, the other end of the contact J1-1 of relay J 1 connects the other end of relay J 2.
2. a kind of starting of three phases motor controller according to claim 1, is characterized in that, described resistance R3 is piezo-resistance.
3. a kind of starting of three phases motor controller according to claim 1, is characterized in that, described relay J 1 and relay J 2 are normally opened contact relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520425026.0U CN204696962U (en) | 2015-06-18 | 2015-06-18 | A kind of starting of three phases motor controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520425026.0U CN204696962U (en) | 2015-06-18 | 2015-06-18 | A kind of starting of three phases motor controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204696962U true CN204696962U (en) | 2015-10-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520425026.0U Expired - Fee Related CN204696962U (en) | 2015-06-18 | 2015-06-18 | A kind of starting of three phases motor controller |
Country Status (1)
| Country | Link |
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| CN (1) | CN204696962U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834909A (en) * | 2017-11-09 | 2018-03-23 | 国网上海市电力公司 | A kind of full torque energy-saving soft start device of asynchronous machine controllable compensating type |
-
2015
- 2015-06-18 CN CN201520425026.0U patent/CN204696962U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834909A (en) * | 2017-11-09 | 2018-03-23 | 国网上海市电力公司 | A kind of full torque energy-saving soft start device of asynchronous machine controllable compensating type |
| CN107834909B (en) * | 2017-11-09 | 2020-03-31 | 国网上海市电力公司 | Controllable compensation type full-torque energy-saving soft starting device of asynchronous motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160623 Address after: Baiyun District of Guangzhou City, Guangdong province 510000 Wo Street Shima Shima village small commercial Street No. 2 Patentee after: Guangzhou Fu Electronic Technology Co. Ltd. Address before: 315700 Tu Town, Xiangshan County, Zhejiang, Ningbo Patentee before: Pang Diqu |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20160618 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |