CN201528302U - Brake control module for three-phase alternating-current motor - Google Patents
Brake control module for three-phase alternating-current motor Download PDFInfo
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- CN201528302U CN201528302U CN200920250131XU CN200920250131U CN201528302U CN 201528302 U CN201528302 U CN 201528302U CN 200920250131X U CN200920250131X U CN 200920250131XU CN 200920250131 U CN200920250131 U CN 200920250131U CN 201528302 U CN201528302 U CN 201528302U
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- phase alternating
- brake control
- control module
- braking control
- circuit
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Abstract
The utility model relates to a brake control module for a three-phase AC (alternating-current) motor. The brake control module has main technical characteristics that the control module comprises a brake control input circuit, a brake control output circuit and a brake control failure display circuit, wherein an input terminal of the brake control input circuit is connected with three phases of AC power supply respectively; and an output terminal of the brake control output circuit is connected with the three-phase AC motor and the brake control failure display circuit. Due to the reasonable design, the anti-interference capacity of the brake control module is improved, the function of protecting the three-phase AC motor is fulfilled, and the service life of the three-phase AC motor is prolonged. Furthermore, the brake control module has the characteristics of small volume, low cost and the like, and can be safely and reliably used in places with explosion prevention requirement such as oilfield, chemical industry, water treatment, etc.
Description
Technical field
The utility model belongs to electric actuator controller field, especially a kind of three phase alternating current motor braking control module.
Background technology
Electric operator is the actuating equipment of controlling and regulating at valve in the industrial process control system, it mainly acts on is that control signal with Process Control System is sent converts corresponding action to, reach the position of closure member in the by-pass valve control or the purpose of other governor motion positions, be widely used in industries such as electric power, metallurgy, petrochemical industry, heat supply, cement, building materials, light textile, food.At present, electric operator is driven by three phase alternating current motor usually, this three phase alternating current motor generally adopts mechanical system to brake, the problem of its existence is: mechanical wear is serious, the control contactor volume is bigger, can produce spark during on-off circuit, drive current is big, is easy to generate shortcomings such as interference.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of antijamming capability strong, do not have mechanical wearing and tearing, long service life, low in energy consumption, volume is little and can not produce the three phase alternating current motor braking control module of spark during on-off circuit.
The utility model solves its technical problem and takes following technical scheme to realize:
A kind of three phase alternating current motor braking control module, comprise braking control input circuit, braking controlling output circuit and braking control fault display circuit, the input of braking control input circuit is connected with three-phase alternating-current supply respectively, and the output of braking controlling output circuit is connected with braking control fault display circuit with three phase alternating current motor.
And, described braking control input circuit comprises transformer and bridge rectifier, the two-phase output of three-phase alternating-current supply is connected with two inputs of transformer, the third phase output of three-phase alternating-current supply directly is connected with the braking controlling output circuit, the output of this transformer is connected with bridge rectifier, and the output of bridge rectifier is connected with the braking controlling output circuit.
And described braking controlling output circuit comprises an electric capacity, and this electric capacity one end is connected with an output of braking control input circuit and the neutral line of three phase alternating current motor, and the other end of this electric capacity is connected with another output of braking control input circuit.
And, described braking control fault display circuit comprises protector, light-emitting diode and resistance, protector is connected between the U phase and braking controlling output circuit of three phase alternating current motor, and light-emitting diode that is cascaded and resistance and protector are connected in parallel.
Advantage of the present utility model and good effect are:
1, this braking control module adopts full analog circuit that three phase alternating current motor is braked control, has improved the antijamming capability of braking control module, and analog circuit control can not produce mechanical wear entirely, has prolonged the useful life of three phase alternating current motor.
2, this braking control module adopts full analog circuit, has avoided the three phase alternating current motor startup, the generation of electric arc and spark when stopping, can be in the oil field, chemical industry, water treatment etc. have the place of requirement of explosion proof to use safely and reliably.
3, this braking control module is provided with braking control fault display circuit, can in time point out operation troubles when the braking control module breaks down, and effectively motor is protected.
4, this braking control module adopts modularized design, has dwindled the module volume, has reduced installing space, has reduced production cost.
5, the utility model is reasonable in design; improved the antijamming capability of braking control module; realized defencive function to three phase alternating current motor; prolonged the useful life of three phase alternating current motor; have characteristics such as volume is little, cost is low, can be in the oil field, chemical industry, water treatment etc. have the place of requirement of explosion proof to use safely and reliably.
Description of drawings
Fig. 1 is a frame principle figure of the present utility model;
Fig. 2 is the circuit diagram of braking control input circuit;
Fig. 3 is the circuit diagram of braking controlling output circuit and braking control fault display circuit.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is further described.
A kind of three phase alternating current motor braking control module, as shown in Figure 1, comprise braking control input circuit, braking controlling output circuit and braking control fault display circuit, the input of braking control input circuit is connected with three-phase alternating-current supply respectively, and the output of braking controlling output circuit is connected with braking control fault display circuit with three phase alternating current motor.Its concrete annexation is as follows:
As shown in Figure 2, braking control input circuit comprises transformer T1 and bridge rectifier, two-phase output L2, the L3 of three-phase alternating-current supply are connected with transformer T1, the third phase output of three-phase alternating-current supply directly is connected with the braking controlling output circuit, the output of transformer T1 connects bridge rectifier and is connected, and the output of bridge rectifier is connected with the braking controlling output circuit.Three-phase alternating-current supply is converted to low-voltage AC through T1, is being converted to direct current by rectifier bridge, as the input power supply of three phase alternating current motor braking.
As shown in Figure 3, the braking controlling output circuit comprises a capacitor C 3, these capacitor C 3 one ends are connected with an output of braking control input circuit and the neutral line N of three phase alternating current motor, and the other end of this capacitor C 3 is connected with another output of braking control input circuit.Three-phase alternating-current supply becomes low-voltage DC after by transformation and rectification and is stored in the capacitor C 3, when the three phase alternating current motor stall, the U that capacitor C 3 is injected three phase alternating current motor with the DC power supply that stores makes it to produce static magnetic field, thereby reaches the effect of braking mutually.
As shown in Figure 4, braking control fault display circuit comprises protector F, light-emitting diode D6 and resistance R 4, protector F be connected three phase alternating current motor U and braking control input circuit L1 mutually between, light-emitting diode D6 that is cascaded and resistance R 4 and protector F are connected in parallel.When three phase alternating current motor braking control module breaks down, the protector F that U goes up mutually opens circuit, and light-emitting diode D6 will be lighted, thereby makes the attendant be convenient to find failure cause.
The course of work of the present utility model is as follows:
1. three-phase alternating-current supply becomes low-voltage DC by the rectification circuit in the braking control input circuit and is stored in the capacitor C 3;
2. when three phase alternating current motor is out of service, be stored in U that direct current in the capacitor C 3 will be switched to three phase alternating current motor mutually in, thereby produce static magnetic field, reach braking motor operation ground effect;
3. when producing fault, the braking control module can not influence the three phase alternating current motor operation, and reports to the police by indicator light.
Embodiment described in the utility model is illustrative; rather than it is determinate; therefore the utility model is not limited to the embodiment described in the embodiment; every by those skilled in the art according to other execution modes that the technical solution of the utility model draws, belong to the scope of the utility model protection equally.
Claims (4)
1. a three phase alternating current motor is braked control module, it is characterized in that: comprise braking control input circuit, braking controlling output circuit and braking control fault display circuit, the input of braking control input circuit is connected with three-phase alternating-current supply respectively, and the output of braking controlling output circuit is connected with braking control fault display circuit with three phase alternating current motor.
2. three phase alternating current motor braking control module according to claim 1, it is characterized in that: described braking control input circuit comprises transformer and bridge rectifier, the two-phase output of three-phase alternating-current supply is connected with two inputs of transformer, the third phase output of three-phase alternating-current supply directly is connected with the braking controlling output circuit, the output of this transformer is connected with bridge rectifier, and the output of bridge rectifier is connected with the braking controlling output circuit.
3. three phase alternating current motor braking control module according to claim 1, it is characterized in that: described braking controlling output circuit comprises an electric capacity, this electric capacity one end is connected with an output of braking control input circuit and the neutral line of three phase alternating current motor, and the other end of this electric capacity is connected with another output of braking control input circuit.
4. three phase alternating current motor braking control module according to claim 1, it is characterized in that: described braking control fault display circuit comprises protector, light-emitting diode and resistance, protector is connected between the U phase and braking controlling output circuit of three phase alternating current motor, and light-emitting diode that is cascaded and resistance and protector are connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920250131XU CN201528302U (en) | 2009-11-10 | 2009-11-10 | Brake control module for three-phase alternating-current motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920250131XU CN201528302U (en) | 2009-11-10 | 2009-11-10 | Brake control module for three-phase alternating-current motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201528302U true CN201528302U (en) | 2010-07-14 |
Family
ID=42519584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920250131XU Expired - Fee Related CN201528302U (en) | 2009-11-10 | 2009-11-10 | Brake control module for three-phase alternating-current motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201528302U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103888031A (en) * | 2014-03-07 | 2014-06-25 | 京东方科技集团股份有限公司 | Brake control circuit and motor system |
-
2009
- 2009-11-10 CN CN200920250131XU patent/CN201528302U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103888031A (en) * | 2014-03-07 | 2014-06-25 | 京东方科技集团股份有限公司 | Brake control circuit and motor system |
| US9312793B2 (en) | 2014-03-07 | 2016-04-12 | Boe Technology Group Co., Ltd. | Brake control circuit and motor system |
| CN103888031B (en) * | 2014-03-07 | 2016-05-11 | 京东方科技集团股份有限公司 | A kind of brake control circuit and motor system |
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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: 20100714 Termination date: 20121110 |