CN204179972U - There is the three-phase full-wave brushless DC motor control system of reversal connection protection function - Google Patents
There is the three-phase full-wave brushless DC motor control system of reversal connection protection function Download PDFInfo
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- CN204179972U CN204179972U CN201420501051.8U CN201420501051U CN204179972U CN 204179972 U CN204179972 U CN 204179972U CN 201420501051 U CN201420501051 U CN 201420501051U CN 204179972 U CN204179972 U CN 204179972U
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Abstract
The utility model relates to a kind of three-phase full-wave brushless DC motor control system with reversal connection protection function, comprise three-phase full-wave brshless DC motor and motor drive plate, motor drive plate is provided with DC power supplier, motor drive ic, motor coil current detection module and tach signal feedback module, DC power supplier is connected with the feeder ear of motor drive ic, the control output end of motor drive ic is connected with the control end of three-phase full-wave brshless DC motor, the current detecting end of motor drive ic, velocity measuring end is connected with the output of motor coil current detection module with tach signal feedback module respectively, the input of DC power supplier is provided with reverse connecting protection element, the utility model is connected the diode of an anti-reverse protection in the positive source input circuit of controller, if electric power polarity connects instead, the diode of the reverse connecting protection of electric machine controller can stop electric current ramp metering device, thus avoid the damage of electric machine control system.
Description
Technical field
The utility model relates to a kind of electric machine control system, particularly relates to a kind of three-phase full-wave brushless DC motor control system with reversal connection protection function.
Background technology
Current condenser for refrigerator or evaporator fan normal controller control, but the controller that more domestic manufacturer produces is second-rate, and failure rate is frequent, lack market, and it is higher to purchase some external controller prices, cost is increased greatly, reduces the market competitiveness.
Conventional condenser for refrigerator or evaporator fan motor do not have reverse power connection defencive function, once electric power polarity connects instead, can damage the motor drive ic in controller, making is motor failure.
Utility model content
The technical problems to be solved in the utility model is: in order to the condenser for refrigerator or evaporator fan motor that solve routine do not have reverse power connection defencive function; once electric power polarity connects instead; the motor drive ic in controller can be damaged; making is the problem of motor failure, and the utility model provides a kind of three-phase full-wave brushless DC motor control system with reversal connection protection function to solve the problems referred to above.
The utility model solves the technical scheme that its technical problem adopts: a kind of three-phase full-wave brushless DC motor control system with reversal connection protection function, comprise three-phase full-wave brshless DC motor and motor drive plate, described motor drive plate is provided with DC power supplier, motor drive ic, motor coil current detection module and tach signal feedback module; Described DC power supplier is connected with the feeder ear of motor drive ic; the control output end of described motor drive ic is connected with the control end of three-phase full-wave brshless DC motor; current detecting end, the velocity measuring end of described motor drive ic are connected with the output of motor coil current detection module with tach signal feedback module respectively, and the input of described DC power supplier is provided with reverse connecting protection element.What motor drive ic adopted is the model of being produced by Japanese ROHM semiconductor group is the chip of BD6345FV.
Further, specifically, described DC power supplier comprises DC power supply and filter circuit, and described reverse connecting protection element arranges and is connected between DC power supply and filter circuit.
Specifically, described reverse connecting protection element is diode, and the positive pole of this diode is connected with DC supply input, and negative pole is connected with filter circuit.
Specifically, the control output end of described motor drive ic is three-phase four-wire system output.
Specifically, described filter circuit comprises the first electric capacity in parallel, the second electric capacity and the first voltage stabilizing didoe, and one end ground connection after the first electric capacity, the second electric capacity and the first voltage stabilizing didoe parallel connection, the other end is connected with the feeder ear of motor drive ic.
Specifically, described motor coil current detection module comprises the first in parallel resistance and the second resistance, and one end ground connection after the first described resistance and the second resistor coupled in parallel, the other end is connected with velocity measuring end.
Specifically, the velocity measuring end of described motor drive ic is also connected with the second voltage stabilizing didoe, and the plus earth of the second described voltage stabilizing didoe, negative pole is connected with velocity measuring end.
Specifically, described three-phase full-wave brshless DC motor comprises stator, rotor, front end housing and rear end cap, described stator comprises stator core, the coil windings being injection-moulded in the multiple groove portions insulation on stator core and being wrapped in the insulation of groove portion, described stator is injected with housing, described rotor comprises axle and the magnetic be injection-moulded on axle turns core, described magnetic turns the side that core is arranged on axle, one end that described axle turns core away from magnetic is stretched out from front end housing, described axle turns one end of core near magnetic and rear end cap is rotationally connected, described magnetic turns core and is placed in stator core.
Specifically, described groove portion insulation has nine, and nine groove portion insulation circumferences are distributed on stator core.
The beneficial effects of the utility model are; the utility model has the three-phase full-wave brushless DC motor control system of reversal connection protection function; (1) diode of a series connection anti-reverse protection in the positive source input circuit of controller; composition reverse-connection protection circuit; if electric power polarity connects instead; the diode of the reverse connecting protection of electric machine controller can stop electric current ramp metering device, thus avoids the possibility damaging electric machine controller
(2) motor drive ic is also connected with motor coil current detection module and tach signal feedback module simultaneously, improves the stability of the operation of three-phase full-wave brushless electric machine, thus improves the quality of product.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structured flowchart that the utility model has the optimum embodiment of three-phase full-wave brushless DC motor control system of reversal connection protection function,
Fig. 2 is the circuit theory diagrams on the utility model motor drive plate,
Fig. 3 is the structural blast figure that the utility model has the three-phase full-wave brushless DC motor control system of reversal connection protection function,
Fig. 4 is the structure chart that the utility model has the three-phase full-wave brushless DC motor control system of reversal connection protection function.
Feeder ear Vcc in figure, current detecting end RNF, velocity measuring end SOUT, input V+, first electric capacity C1, the second electric capacity C2, the first voltage stabilizing didoe ZD1, first resistance R2, the second resistance R3, the second voltage stabilizing didoe ZD2, stator core 1, groove portion insulation 2, coil windings 3, housing 4, axle 5, magnetic turns core 6, front end housing 7, rear end cap 8, motor drive plate 11.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As shown in Figure 2, the utility model has the three-phase full-wave brushless DC motor control system of reversal connection protection function, comprise three-phase full-wave brshless DC motor and motor drive plate 11, motor drive plate 11 is provided with DC power supplier, motor drive ic, motor coil current detection module and tach signal feedback module, DC power supplier is connected with the feeder ear Vcc of motor drive ic, the control output end of motor drive ic is connected with the control end of three-phase full-wave brshless DC motor, the current detecting end RNF of motor drive ic, velocity measuring end SOUT is connected with the output of motor coil current detection module with tach signal feedback module respectively.
The input of DC power supplier is provided with reverse connecting protection element, and reverse connecting protection element is diode D1, and the positive pole of this diode D1 is connected with the input V+ of DC power supply, and negative pole is connected with filter circuit.
DC power supplier comprises DC power supply and filter circuit, and reverse connecting protection element arranges and is connected between DC power supply and filter circuit.Filter circuit comprises one end ground connection after in parallel the first electric capacity C1, the second electric capacity C2 and the first voltage stabilizing didoe ZD1, the first electric capacity C1, the second electric capacity C2 and the first voltage stabilizing didoe ZD1 parallel connection, and the other end is connected with the feeder ear Vcc of motor drive ic.
The control output end of motor drive ic is three-phase four-wire system output.
Motor coil current detection module comprises one end ground connection after the first in parallel resistance R2 and the second resistance R3, the first resistance R2 and the second resistance R3 parallel connection, and the other end is connected with velocity measuring end RNF.
The velocity measuring end SOUT of motor drive ic is also connected with the second voltage stabilizing didoe ZD2, the plus earth of the second voltage stabilizing didoe ZD2, and negative pole is connected with velocity measuring end SOUT.
The structure of three-phase full-wave brushless electric machine as shown in Figure 3-4, three-phase full-wave brshless DC motor comprises stator, rotor, front end housing 7 and rear end cap 8, stator comprises stator core 1, the coil windings 3 being injection-moulded in the multiple groove portions insulation 2 on stator core 1 and being wrapped in groove portion insulation 2, stator is injected with housing 4, rotor comprises axle 5 and the magnetic be injection-moulded on axle 5 turns core 6, magnetic turns the side that core 6 is arranged on axle 5, axle 5 turns core 6 one end away from magnetic is stretched out from front end housing 7, axle turns one end of core 6 near magnetic and rear end cap 8 is rotationally connected, magnetic turns core 6 and is placed in stator core 1, groove portion insulation 2 has nine, nine groove portions, 2 circumferences that insulate are distributed on stator core 1.Certain groove portion insulation 2 also can be six or 12.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on specification, must determine its technical scope according to right.
Claims (9)
1. one kind has the three-phase full-wave brushless DC motor control system of reversal connection protection function, it is characterized in that: comprise three-phase full-wave brshless DC motor and motor drive plate (11), described motor drive plate (11) is provided with DC power supplier, motor drive ic, motor coil current detection module and tach signal feedback module;
Described DC power supplier is connected with the feeder ear (Vcc) of motor drive ic, and the control output end of described motor drive ic is connected with the control end of three-phase full-wave brshless DC motor,
Current detecting end (RNF), the velocity measuring end (SOUT) of described motor drive ic are connected with the output of motor coil current detection module with tach signal feedback module respectively,
The input of described DC power supplier is provided with reverse connecting protection element.
2. the three-phase full-wave brushless DC motor control system with reversal connection protection function according to claim 1; it is characterized in that: described DC power supplier comprises DC power supply and filter circuit, described reverse connecting protection element arranges and is connected between DC power supply and filter circuit.
3. the three-phase full-wave brushless DC motor control system with reversal connection protection function according to claim 2; it is characterized in that: described reverse connecting protection element is diode (D1); and the positive pole of this diode (D1) is connected with the input (V+) of DC power supply, negative pole is connected with filter circuit.
4. the three-phase full-wave brushless DC motor control system with reversal connection protection function according to claim 3, is characterized in that: the control output end of described motor drive ic is three-phase four-wire system output.
5. the three-phase full-wave brushless DC motor control system with reversal connection protection function according to claim 2; it is characterized in that: described filter circuit comprises the first electric capacity (C1) in parallel, the second electric capacity (C2) and the first voltage stabilizing didoe (ZD1); one end ground connection after first electric capacity (C1), the second electric capacity (C2) and the first voltage stabilizing didoe (ZD1) are in parallel, the other end is connected with the feeder ear (Vcc) of motor drive ic.
6. the three-phase full-wave brushless DC motor control system with reversal connection protection function according to claim 1; it is characterized in that: described motor coil current detection module comprises the first resistance (R2) in parallel and the second resistance (R3); described the first resistance (R2) and the second resistance (R3) rear one end in parallel ground connection, the other end is connected with velocity measuring end (RNF).
7. the three-phase full-wave brushless DC motor control system with reversal connection protection function according to claim 1; it is characterized in that: the velocity measuring end (SOUT) of described motor drive ic is also connected with the second voltage stabilizing didoe (ZD2); the plus earth of described the second voltage stabilizing didoe (ZD2), negative pole is connected with velocity measuring end (SOUT).
8. the three-phase full-wave brushless DC motor control system with reversal connection protection function according to claim 1, it is characterized in that: described three-phase full-wave brshless DC motor comprises stator, rotor, front end housing (7) and rear end cap (8), described stator comprises stator core (1), the coil windings (3) being injection-moulded in multiple groove portion insulation (2) on stator core (1) and being wrapped in groove portion insulation (2), described stator is injected with housing (4), described rotor comprises axle (5) and the magnetic be injection-moulded on axle (5) turns core (6), described magnetic turns the side that core (6) is arranged on axle (5), described axle (5) turns core (6) one end away from magnetic is stretched out from front end housing (7), described axle turns one end of core (6) near magnetic and rear end cap (8) is rotationally connected, described magnetic turns core (6) and is placed in stator core (1).
9. the three-phase full-wave brushless DC motor control system with reversal connection protection function according to claim 8; it is characterized in that: described groove portion insulation (2) has nine, nine groove portion insulation (2) circumferences are distributed on stator core (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420501051.8U CN204179972U (en) | 2014-09-01 | 2014-09-01 | There is the three-phase full-wave brushless DC motor control system of reversal connection protection function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420501051.8U CN204179972U (en) | 2014-09-01 | 2014-09-01 | There is the three-phase full-wave brushless DC motor control system of reversal connection protection function |
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| CN204179972U true CN204179972U (en) | 2015-02-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104836486A (en) * | 2015-04-09 | 2015-08-12 | 哈尔滨工程大学 | Brushless direct-current motor energy-saving control system based on FPGA and control method |
| CN108462427A (en) * | 2017-02-20 | 2018-08-28 | 茂达电子股份有限公司 | Fan drive circuit |
-
2014
- 2014-09-01 CN CN201420501051.8U patent/CN204179972U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104836486A (en) * | 2015-04-09 | 2015-08-12 | 哈尔滨工程大学 | Brushless direct-current motor energy-saving control system based on FPGA and control method |
| CN104836486B (en) * | 2015-04-09 | 2017-08-04 | 哈尔滨工程大学 | A kind of brshless DC motor energy-saving control system and control method based on FPGA |
| CN108462427A (en) * | 2017-02-20 | 2018-08-28 | 茂达电子股份有限公司 | Fan drive circuit |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213011 Qian Jia Industrial Park, Guan yuan town, Wujin District, Jiangsu, Changzhou Patentee after: JIANGSU LEILI MOTOR CO., LTD. Address before: 213011 Qian Jia Industrial Park, Guan yuan town, Wujin District, Jiangsu, Changzhou Patentee before: Changzhou Leshi Leili Electrical Appliance Co., Ltd. |