CN203722510U - Inverter power supply for electromagnetic brake of electromagnetic braking three-phase asynchronous motor - Google Patents
Inverter power supply for electromagnetic brake of electromagnetic braking three-phase asynchronous motor Download PDFInfo
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- CN203722510U CN203722510U CN201420077359.4U CN201420077359U CN203722510U CN 203722510 U CN203722510 U CN 203722510U CN 201420077359 U CN201420077359 U CN 201420077359U CN 203722510 U CN203722510 U CN 203722510U
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- electromagnetic
- inverter
- power supply
- asynchronous motor
- braking
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- 238000010586 diagram Methods 0.000 description 1
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- 230000005484 gravity Effects 0.000 description 1
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Abstract
The utility model relates to an inverter power supply, especially an inverter power supply for an electromagnetic brake of an electromagnetic braking three-phase asynchronous motor. The inverter power supply comprises a direct current power supply, an inverter circuit, a booster circuit and an interlock circuit. The direct current power supply is connected to an input end of a circuit breaker QF1, an output end of the circuit breaker QF1 is connected to the inverter circuit composed by an inverter U, and a DC220V direct current is inverted into an AC160V alternating current; the output of the inverter U is connected to the booster circuit composed of a transformer TR1, and an AC160V alternating current is inverted into an AC380V alternating current; and the AC380V alternating current is outputted via an intermediate relay KA1 to the electromagnetic brake of the electromagnetic braking three-phase asynchronous motor. According to the utility model, a direct current power supply formed through series connection of 18 12V batteries for a direct current lifting electromagnet power outage protection device installed on an electromagnetic lifter can reasonably be used to change the electromagnetic brake of the electromagnetic braking three-phase asynchronous motor from manual control to automatic control; and thus, the amount of labor is reduced, and the operation is easy.
Description
Technical field
The utility model relates to inverter, refers in particular to electromagnetic-braking three-phase asynchronous motor electromagnetic brake inverter.
Background technology
When current lifting mechanism uses the matching used DC electromagnet of crane of electromagnetic-braking three-phase asynchronous motor to run into AC network power failure in carrying material process, motor is having a power failure after braking, can only realize by means of releasing device the rotation of motor, the material of lifting is down to ground.The weak point of this class device is to have the upper crane of people to carry out manual operation.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art part, provide a kind of in the time that AC network has a power failure for electromagnetic-braking three-phase asynchronous motor electromagnetic brake provides inverter, brake and friction of rest face are thrown off mutually, electromagnetic-braking three-phase asynchronous motor rotates under the effect of gravity, realizes the electromagnetic-braking three-phase asynchronous motor electromagnetic brake inverter that lifting mechanism declines.
The technical solution of the utility model is a kind of inverter being made up of DC power supply, inverter circuit, booster circuit, interlock circuit of structure, wherein:
The input of described DC power supply connecting breaker, the output of circuit breaker connects the inverter circuit being made up of frequency converter, inverse of the DC into AC;
The output of described frequency converter connects the booster circuit being made up of transformer, the alternating current of AC160V is become to the alternating current of AC380V;
The alternating current of described AC380V exports the electromagnetic brake of electromagnetic-braking three-phase asynchronous motor to through auxiliary relay.
Advantage of the present utility model and beneficial effect:
Electromagnetic-braking three-phase asynchronous motor electromagnetic braking inverter of the present utility model can be widely used on electromagnetic lifter.It is compared with prior art:
1, easy to operate.
2, change automatic control into by manual control, reduce the amount of labour.
3, make rational use of resources.
Brief description of the drawings
Fig. 1 is the utility model inverter main loop circuit figure
Fig. 2 is the utility model inverter control loop circuit diagram.
Embodiment
As seen from Figure 1, Figure 2, the utility model is made up of DC power supply, inverter circuit, booster circuit, interlock circuit, wherein:
The input of described DC power supply connecting breaker QF1, the output of circuit breaker Q F1 connects the inverter circuit being made up of frequency converter U, DC220V DC inverter is become to the alternating current of AC160V;
The output of described frequency converter U connects the booster circuit being made up of transformer TR1, the alternating current of AC160V is become to the alternating current of AC380V;
The alternating current of described AC380V exports the electromagnetic brake of electromagnetic-braking three-phase asynchronous motor to through auxiliary relay KA1.
Described DC power supply is composed in series by 18 joint 12V storage batterys.
Described electromagnetic-braking three-phase asynchronous motor electromagnetic brake inverter, interlocks with power frequency supply.
Described booster circuit adopts the transformer that is turned single-phase export structure by three-phase input.
The course of work of the present utility model and principle:
When in Fig. 1, AC network is normal, auxiliary relay KA2 work, single-phase alternating current is the power supply of electromagnetic-braking three-phase asynchronous motor electromagnetic brake through KA1 normally-closed contact, KA1 normally opened contact disconnects the circuit of AC power to frequency converter, prevents from damaging frequency converter.In the time that AC network has a power failure, PLC detects auxiliary relay KA2 power-off, the DC power supply that 18 joint 12V storage batterys are composed in series is delivered to circuit breaker Q F1, deliver to frequency converter through circuit breaker Q F1 again, be reverse into 50Hz inverter through frequency converter, then deliver to three-phase and turn single-phase step-up transformer, can be electromagnetic-braking three-phase asynchronous motor electromagnetic brake Single-Phase Inverter Source is provided.
In Fig. 2, in the time that AC network has a power failure, auxiliary relay KA2 quits work.In the time that Programmable Logic Controller detects that AC network has a power failure, by change over switch SA2 closure, PLC controls auxiliary relay KA1 work, connects electromagnetic-braking three-phase asynchronous motor electromagnetic brake inverter power circuit simultaneously.Inching button SB1, frequency converter starts output 50Hz inverter.The time of inching button exceedes after set point (time is set by the built-in timer of frequency converter) or release button, and frequency converter quits work automatically, stops as the power supply of electromagnetic-braking three-phase asynchronous motor electromagnetic brake.Only, after release button 3s, operation change over switch SA2 disconnects and just can disconnect KA1, disconnects electromagnetic-braking three-phase asynchronous motor electromagnetic brake inverter power circuit.Hoisting DC electromagnet power failure protector magnetic device is in the time providing inverter to electromagnetic-braking three-phase asynchronous motor electromagnetic brake, AC network incoming call, because KA1 normally-closed contact has disconnected electromagnetic-braking three-phase asynchronous motor electromagnetic brake power frequency supply circuit, the situation that there will not be power frequency supply and inverter simultaneously to power to electromagnetic-braking three-phase asynchronous motor electromagnetic brake.
Embodiment described in the utility model is only the description that preferred implementation of the present utility model is carried out; not the utility model design and scope are limited; do not departing under the prerequisite of the utility model design philosophy; various modification and improvement that in this area, engineers and technicians make the technical solution of the utility model; all should fall into protection range of the present utility model; the technology contents of the utility model request protection, has all been documented in claims.
Claims (4)
1. an electromagnetic-braking three-phase asynchronous motor electromagnetic brake inverter, is made up of DC power supply, inverter circuit, booster circuit, interlock circuit, it is characterized in that:
The input of described DC power supply connecting breaker QF1, the output of circuit breaker Q F1 connects the inverter circuit being made up of frequency converter U, DC220V DC inverter is become to the alternating current of AC160V;
The output of described frequency converter U connects the booster circuit being made up of transformer TR1, the alternating current of AC160V is become to the alternating current of AC380V;
The alternating current of described AC380V exports the electromagnetic brake of electromagnetic-braking three-phase asynchronous motor to through auxiliary relay KA1.
2. electromagnetic-braking three-phase asynchronous motor electromagnetic brake inverter according to claim 1, is characterized in that, described DC power supply is composed in series by 18 joint 12V storage batterys.
3. electromagnetic-braking three-phase asynchronous motor electromagnetic brake inverter according to claim 1, is characterized in that, described electromagnetic-braking three-phase asynchronous motor electromagnetic brake inverter, interlocks with power frequency supply.
4. electromagnetic-braking three-phase asynchronous motor electromagnetic brake inverter according to claim 1, is characterized in that, described booster circuit adopts the transformer that is turned single-phase export structure by three-phase input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420077359.4U CN203722510U (en) | 2014-02-24 | 2014-02-24 | Inverter power supply for electromagnetic brake of electromagnetic braking three-phase asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420077359.4U CN203722510U (en) | 2014-02-24 | 2014-02-24 | Inverter power supply for electromagnetic brake of electromagnetic braking three-phase asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203722510U true CN203722510U (en) | 2014-07-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420077359.4U Expired - Lifetime CN203722510U (en) | 2014-02-24 | 2014-02-24 | Inverter power supply for electromagnetic brake of electromagnetic braking three-phase asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203722510U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109623661A (en) * | 2019-01-30 | 2019-04-16 | 中原工学院 | A kind of following permanent torque speed control unit of the emery wheel 60Hz of grinding wheel machining tool |
-
2014
- 2014-02-24 CN CN201420077359.4U patent/CN203722510U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109623661A (en) * | 2019-01-30 | 2019-04-16 | 中原工学院 | A kind of following permanent torque speed control unit of the emery wheel 60Hz of grinding wheel machining tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Inverter power supply for electromagnetic brake of electromagnetic braking three-phase asynchronous motor Effective date of registration: 20160128 Granted publication date: 20140716 Pledgee: Bank of Beijing Limited by Share Ltd. Changsha branch Pledgor: HUNAN KEMEIDA ELECTRIC Co.,Ltd. Registration number: 2016430000001 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20170223 Granted publication date: 20140716 Pledgee: Bank of Beijing Limited by Share Ltd. Changsha branch Pledgor: HUNAN KEMEIDA ELECTRIC Co.,Ltd. Registration number: 2016430000001 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Inverter power supply for electromagnetic brake of electromagnetic braking three-phase asynchronous motor Effective date of registration: 20170316 Granted publication date: 20140716 Pledgee: Bank of Beijing Limited by Share Ltd. Changsha branch Pledgor: HUNAN KEMEIDA ELECTRIC Co.,Ltd. Registration number: 2017430000017 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220630 Granted publication date: 20140716 Pledgee: Bank of Beijing Limited by Share Ltd. Changsha branch Pledgor: HUNAN KEMEIDA ELECTRIC Co.,Ltd. Registration number: 2017430000017 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |
|
| CX01 | Expiry of patent term |