CN107947466A - Asynchronous machine - Google Patents
Asynchronous machine Download PDFInfo
- Publication number
- CN107947466A CN107947466A CN201711400248.7A CN201711400248A CN107947466A CN 107947466 A CN107947466 A CN 107947466A CN 201711400248 A CN201711400248 A CN 201711400248A CN 107947466 A CN107947466 A CN 107947466A
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- China
- Prior art keywords
- power
- motor
- amplifier board
- asynchronous machine
- power amplifier
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- 238000006243 chemical reaction Methods 0.000 claims description 16
- 230000005669 field effect Effects 0.000 claims description 16
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/25—Devices for sensing temperature, or actuated thereby
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
Embodiment of the present invention provides a kind of asynchronous machine, belongs to motor field.The asynchronous machine includes：Motor；Power amplifier board, is connected between the power supply of motor and the motor, for changing the output power of the power supply to predetermined power；Temperature sensor, is arranged on the power amplifier board, for detecting the temperature of the power amplifier board；Alarm；Heat sink, including radiator fan and heat-dissipating pipe；Controller：It is connected with the power amplifier board, for controlling the power amplifier board to adjust the rotating speed of the motor；It is connected with the radiator fan, the rotating speed for radiator fan described in the output power according to the power amplifier board；It is connected with the temperature sensor, for when the temperature of the power amplifier board is higher than threshold temperature, starting the alarm.The asynchronous machine can accelerate heat dissipation when motor works, and avoid the circuit caused by hot-spot from damaging.
Description
Technical field
The present invention relates to motor, more particularly to a kind of asynchronous machine.
Background technology
Asynchronous machine is one of modern most common motor.
At work, powerful electric current can produce substantial amounts of heat to asynchronous machine.Due to the working environment of asynchronous machine
Relative closure, is unfavorable for radiating, and is so likely to cause circuit to damage due to hot-spot so that the power supply of asynchronous machine
Plant failure.
Metal heat-conducting plate is set to accelerate heat dissipation using in the exterior of asynchronous machine in the prior art this problem.But
It is that such radiating mode can not meet cooling requirements of the motor under heavy condition.
The content of the invention
The object of the present invention is to provide a kind of asynchronous machine, which can accelerate heat dissipation when motor works, and keep away
Exempt from the circuit caused by hot-spot to damage.
To achieve these goals, embodiment of the present invention provides a kind of asynchronous machine, which can include：
Motor；
Power amplifier board, is connected between the power supply of motor and the motor, for by the output power of the power supply change to
Predetermined power；
Temperature sensor, is arranged on the power amplifier board, for detecting the temperature of the power amplifier board；
Alarm；
Heat sink, including radiator fan and heat-dissipating pipe；
Controller：
It is connected with the power amplifier board, for controlling the power amplifier board to adjust the rotating speed of the motor；
It is connected with the radiator fan, for turning for radiator fan described in the output power according to the power amplifier board
Speed；
It is connected with the temperature sensor, for when the temperature of the power amplifier board is higher than threshold temperature, starting the police
Report device；
The power amplifier board can include：
Voltage conversion unit, is connected between power supply and controller, for the output voltage of power supply to be converted into controller
Supply voltage；
Power conversion unit, is connected between power supply and motor, for changing the output power of power supply to predetermined power.
Alternatively, which may further include：Heat-conducting plate, the heat-conducting plate are arranged on by voltage conversion unit and work(
Between the circuit and radiator fan of rate converting unit composition, the heat for the circuit to be produced is transferred at radiator fan.
Alternatively, voltage conversion unit can include：First resistor, second resistance, the first field-effect tube, the one or three pole
Pipe, one end of first resistor are connected with power supply, and the other end of first resistor is connected with the grid of the first field-effect tube, first resistor
The other end and the first field-effect tube grid between node be grounded by second resistance, the source electrode of the first field-effect tube connects
Ground, the drain electrode of the first field-effect tube are connected with the base stage of the first triode, and the emitter of the first triode is used to receive+5V direct currents
Voltage, the collector of the first triode are connected with controller.
Alternatively, power conversion unit can include：
Power control module, the power control module can be BUCK circuits, be connected with power supply；
Isolated location, is connected between power control module and motor.
Alternatively, which can be phototube coupling unit and/or electromagnetic isolation unit.
Alternatively, controller can be further used for：
Judge whether the power of motor is more than the first predetermined power；
In the case where the power for judging motor is more than the first predetermined power, start radiator fan.
Alternatively, which can be further used for：
In the case where the power for judging motor is less than or equal to the first predetermined power, do not start radiator fan.
Alternatively, which can be microcontroller.
Through the above technical solutions, asynchronous machine provided by the invention on power amplifier board by setting radiator fan and heat dissipation
The mode of pipe accelerates the radiating rate when motor works, and avoids the power supply unit of motor from working caused by hot-spot
Failure.
The further feature and advantage of embodiment of the present invention will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Attached drawing is that embodiment of the present invention is further understood for providing, and a part for constitution instruction, with
Following embodiment is used to explain embodiment of the present invention together, but does not form the limit to embodiment of the present invention
System.In the accompanying drawings：
Fig. 1 is the structure diagram of asynchronous machine according to an embodiment of the present invention；
Fig. 2 is the structure diagram of asynchronous machine according to an embodiment of the present invention；
Fig. 3 is the structure diagram of voltage conversion unit according to an embodiment of the present invention；And
Fig. 4 is the location diagram of heat-conducting plate according to an embodiment of the present invention, radiator fan and heat-dissipating pipe.
Embodiment
The embodiment of embodiment of the present invention is described in detail below in conjunction with attached drawing.It should be appreciated that
The specific embodiments described herein are merely to illustrate and explain the present invention embodiment, are not intended to limit the invention implementation
Mode.
Fig. 1 is the structure diagram of asynchronous machine according to an embodiment of the present invention.In Fig. 1, the asynchronous machine
It can include：Motor 10, power amplifier board 20, temperature sensor 30, alarm 40, heat sink 50 and controller 60；Power amplifier board 20 connects
It is connected between the power supply S of motor 10 and motor 10, for changing the output power of power supply S to predetermined power.Heat sink 50 wraps
Include radiator fan 51 and heat-dissipating pipe 52.Controller 60 is connected with the power amplifier board 20, for controlling the power amplifier board 20 to adjust the electricity
The rotating speed of machine 10.The controller 60 can be further connected with radiator fan 51, for the output power according to the power amplifier board 20
Control the rotating speed of radiator fan 51.In the example of the present invention, it is predetermined to be less than first in the output power of the power amplifier board 20
During power, at this time, the heat which produces is less, then controller 60 can not start radiator fan 51, so keep away
Exempt to cause the waste of electric power.When the output power of the power amplifier board 20 is more than the first predetermined power, at this time, which produces
Heat it is more, by the motor 10 casing heat dissipation be clearly insufficient for cooling requirements.So, controller 60 can
To control the radiator fan 51 to start.In addition, the output power that the controller 60 can also be configured as the power amplifier board 20 is got over
Greatly, control the rotating speed of the radiator fan 51 higher.Ring can be used according to the reality of motor 10 for above-mentioned first predetermined power
Border determines, such as when motor 10 is located at ventilated environment, can be higher value by the setting value of first predetermined power.When
Can be smaller value by the setting value of first predetermined power, so when motor 10 is located at air flow relatively slow environment
Easy to the startup of controller 60 radiator fan 31 when the power amplifier board 20 is in smaller power.So also save electric power energy.But
In the case where some motors are in the situation or radiator fan failure of heavily loaded (high-power output), the temperature of power amplifier board 20 is high
In default threshold temperature (in this embodiment, the threshold temperature can be according to the normal working temperature of power amplifier board most
What big value determined), at this time, controller 60 (receiving temperature signal by temperature sensor 30) starts alarm 40 to notify work
Personnel so that staff can have found the failure in time, so as to close the generation that motor avoids accident.
In an embodiment of the invention, as shown in Fig. 2, the power amplifier board 20 can include：
Voltage conversion unit 21, is connected between the power supply S and the controller 60, for by the defeated of the power supply S
Go out voltage conversion into the supply voltage of the controller 60.In the example of the present invention, which can be with
It is circuit structure as shown in Figure 3.In figure 3, which can include：First resistor R1, second resistance R2,
First field-effect tube M1 and the first triode Q1.One end of first resistor R1 is connected with power supply S, the other end of first resistor R1
It is connected with the grid of the first field-effect tube M1, the node between the grid of the other end of first resistor R1 and the first field-effect tube M1
It is grounded by second resistance R2.The source electrode ground connection of first field-effect tube M1, drain electrode and the first triode of the first field-effect tube M1
The base stage connection of Q1, the emitter of the first triode Q1 are used for the DC voltage for receiving+5V, the collector of first triode Q1
It is connected with controller 40.Preferably, which can also include：3rd resistor R3, the 4th resistance R4 and the 5th
Resistance R5.The drain electrode of first field-effect tube M1 is connected by 3rd resistor R3 with the base stage of the first triode Q1.3rd electricity
The node hindered between the base stage of R3 and the first triode Q1 is connected by the emitter of the 4th resistance R4 and the first triode Q1, should
The collector of first triode Q1 is grounded by the 5th resistance R5, between the collector and the 5th resistance R5 of first triode Q1
Node be used for be connected with controller 60.
Power conversion unit 22, is connected between power supply S and motor 10, for changing the output power of power supply S to pre-
Power is determined in order to power for the motor 10.In this embodiment, which can include BUCK circuits
And isolated location.Controller 40 adjusts the output power of power supply 10 to adjust electricity by the BUCK circuits of the power conversion unit 22
The operating power of machine 10.Isolated location can isolate the interference signal between motor 10 and power supply S.In the implementation of the present invention
In mode, which can be phototube coupling unit, can also electromagnetic isolation unit.
In an embodiment of the invention, which is asynchronous machine.
In an embodiment of the invention, as shown in figure 4, heat sink 30 can also include heat-conducting plate 53.In Fig. 4
In, which is arranged between power amplifier board 20 and radiator fan 51 (underface of radiator fan 51), for by the power
At the heat transmission of plate 20 to radiator fan 51, radiator fan 51 starts, and the air-flow accelerated in heat-dissipating pipe 52 is flowed so that power
The surface temperature of plate 20 declines, and avoids the temperature of power amplifier board 20 excessive.In addition, the heat-conducting plate 53 will be due to that will be located on power amplifier board 20
Circuit separated with the external world, so also so that the circuit avoid because oiliness dust is infected with and occur caused by the reasons such as short circuit therefore
Barrier, while also have certain waterproof action.
In an embodiment of the invention, the controller 60 can be general processor, application specific processor, it is conventional at
Manage device, digital signal processor (DSP), multi-microprocessor, the one or more microprocessors associated with DSP core, control
Device processed, microcontroller, application-specific integrated circuit (ASIC), field programmable gate array (FPGA) circuit, the collection of any other type
Into circuit (IC), state machine etc..Preferably, which can be microcontroller.
Through the above technical solutions, asynchronous machine provided by the invention can by power amplifier board set radiator fan and
The mode of heat-dissipating pipe accelerates the radiating rate when motor works, and avoids the power supply unit of motor caused by hot-spot
Job failure.In addition, asynchronous machine provided by the invention can also by way of the set temperature sensor on power amplifier board come
The real time temperature of power amplifier board is detected, avoids the power supply unit of the motor hot-spot in the case of heavy duty or radiator fan failure
Caused by equipment damage the problem of occur.
The optional embodiment of example of the present invention is described in detail above in association with attached drawing, still, embodiment of the present invention is not
The detail being limited in the above embodiment, can be to of the invention real in the range of the technology design of embodiment of the present invention
The technical solution for applying mode carries out a variety of simple variants, these simple variants belong to the protection domain of embodiment of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, embodiment of the present invention
Various combinations of possible ways are no longer separately illustrated.
It will be appreciated by those skilled in the art that realize that all or part of step in the above embodiment method is to lead to
Program is crossed to instruct relevant hardware to complete, the program storage in a storage medium, including some instructions use so that
One (can be microcontroller, chip etc.) or processor (processor) perform each embodiment the method for the application
All or part of step.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey
The medium of sequence code.
In addition, can also be combined between a variety of embodiments of embodiment of the present invention, as long as its
Without prejudice to the thought of embodiment of the present invention, it should equally be considered as embodiment of the present invention disclosure of that.
Claims (8)
1. a kind of asynchronous machine, it is characterised in that the asynchronous machine includes：
Motor；
Power amplifier board, is connected between the power supply of motor and the motor, for changing the output power of the power supply to predetermined
Power；
Temperature sensor, is arranged on the power amplifier board, for detecting the temperature of the power amplifier board；
Alarm；
Heat sink, including radiator fan and heat-dissipating pipe；
Controller：
It is connected with the power amplifier board, for controlling the power amplifier board to adjust the rotating speed of the motor；
It is connected with the radiator fan, the rotating speed for radiator fan described in the output power according to the power amplifier board；
It is connected with the temperature sensor, for when the temperature of the power amplifier board is higher than threshold temperature, starting the alarm；
The power amplifier board includes：
Voltage conversion unit, is connected between the power supply and the controller, for the output voltage of the power supply to be changed
Into the supply voltage of the controller；
Power conversion unit, is connected between the power supply and the motor, for by the output power of the power supply change to
The predetermined power.
2. asynchronous machine according to claim 1, it is characterised in that the heat sink further comprises heat-conducting plate, described
Heat-conducting plate is arranged between the circuit being made of the voltage conversion unit, the power conversion unit and the radiator fan,
Heat for the circuit to be produced is transferred at the radiator fan.
3. asynchronous machine according to claim 1, it is characterised in that the voltage conversion unit includes：First resistor,
Two resistance, the first field-effect tube, the first triode, one end of the first resistor are connected with the power supply, the first resistor
The other end be connected with the grid of first field-effect tube, the other end of the first resistor and first field-effect tube
Node between grid is grounded by the second resistance, the source electrode ground connection of first field-effect tube, first field-effect
The drain electrode of pipe is connected with the base stage of first triode, and the emitter of first triode is used to receive+5V DC voltages,
The collector of first triode is connected with the controller.
4. asynchronous machine according to claim 1, it is characterised in that the power conversion unit includes：
Power control module, the power control module include BUCK circuits, are connected with the power supply；
Isolated location, is connected between the power control module and the motor.
5. asynchronous machine according to claim 3, it is characterised in that the isolated location for phototube coupling unit and/or
Electromagnetic isolation unit.
6. asynchronous machine according to claim 1, it is characterised in that the controller is further used for：
Judge whether the power of the motor is more than the first predetermined power；
In the case where the power for judging the motor is more than the first predetermined power, start the radiator fan.
7. asynchronous machine according to claim 6, it is characterised in that the controller is further used for：
In the case where the power for judging the motor is less than or equal to the first predetermined power, the radiator fan is not started.
8. asynchronous machine according to claim 1, it is characterised in that the controller is microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711400248.7A CN107947466A (en) | 2017-12-22 | 2017-12-22 | Asynchronous machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711400248.7A CN107947466A (en) | 2017-12-22 | 2017-12-22 | Asynchronous machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107947466A true CN107947466A (en) | 2018-04-20 |
Family
ID=61942682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711400248.7A Pending CN107947466A (en) | 2017-12-22 | 2017-12-22 | Asynchronous machine |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201789461U (en) * | 2010-07-02 | 2011-04-06 | 威海鹿洲电动汽车研发有限公司 | High-power DC brushless electric motor controller |
| CN103227578A (en) * | 2013-04-03 | 2013-07-31 | 宁波中博电器有限公司 | Low-power inverter circuit |
| CN203135791U (en) * | 2013-02-27 | 2013-08-14 | 江苏中兴西田数控科技有限公司 | Cooling device of driving motor |
| CN104158454A (en) * | 2013-05-13 | 2014-11-19 | 三菱电机株式会社 | Synchronous machine controller |
| CN205429988U (en) * | 2016-02-26 | 2016-08-03 | 扬州大劲电机制造有限公司 | Intelligence heat dissipation motor system |
| CN205986696U (en) * | 2016-07-28 | 2017-02-22 | 合肥凯利科技投资有限公司 | A machine controller for exchanging it is asynchronous |
-
2017
- 2017-12-22 CN CN201711400248.7A patent/CN107947466A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201789461U (en) * | 2010-07-02 | 2011-04-06 | 威海鹿洲电动汽车研发有限公司 | High-power DC brushless electric motor controller |
| CN203135791U (en) * | 2013-02-27 | 2013-08-14 | 江苏中兴西田数控科技有限公司 | Cooling device of driving motor |
| CN103227578A (en) * | 2013-04-03 | 2013-07-31 | 宁波中博电器有限公司 | Low-power inverter circuit |
| CN104158454A (en) * | 2013-05-13 | 2014-11-19 | 三菱电机株式会社 | Synchronous machine controller |
| CN205429988U (en) * | 2016-02-26 | 2016-08-03 | 扬州大劲电机制造有限公司 | Intelligence heat dissipation motor system |
| CN205986696U (en) * | 2016-07-28 | 2017-02-22 | 合肥凯利科技投资有限公司 | A machine controller for exchanging it is asynchronous |
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| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20181025 Address after: 324000 No. 1-98, 11 A, 11 Garden East Avenue, Kecheng District, Quzhou, Zhejiang. Applicant after: Quzhou quantitative Intelligence Technology Co., Ltd. Address before: 324000 No. 28, Zhou Jiashan village, hang Bu Town, Kecheng District, Quzhou, Zhejiang Applicant before: Wu Liuping |
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| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180420 |
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| RJ01 | Rejection of invention patent application after publication |