CN103178660A - Driving motor with easily maintained temperature sensor and over-temperature protection method for driving motor - Google Patents
Driving motor with easily maintained temperature sensor and over-temperature protection method for driving motor Download PDFInfo
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- CN103178660A CN103178660A CN201310098202XA CN201310098202A CN103178660A CN 103178660 A CN103178660 A CN 103178660A CN 201310098202X A CN201310098202X A CN 201310098202XA CN 201310098202 A CN201310098202 A CN 201310098202A CN 103178660 A CN103178660 A CN 103178660A
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- 238000000034 method Methods 0.000 title claims abstract description 8
- 241001269238 Data Species 0.000 claims description 24
- 238000012935 Averaging Methods 0.000 claims description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004519 grease Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 12
- 238000004804 winding Methods 0.000 abstract description 4
- 238000002474 experimental method Methods 0.000 abstract description 3
- 238000011161 development Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The invention provides a driving motor with an easily maintained temperature sensor and an over-temperature protection method for the driving motor, and aims to improve the maintenance efficiency of the temperature sensor, reduce the maintenance cost, solve the problem of difficulty in after-sale maintenance of the temperature sensor of the motor, prolong the service life of the motor and reduce complaints of clients. The driving motor comprises a motor body and the temperature sensor, wherein a motor stator and a motor rotor are arranged in a motor shell; the temperature sensor penetrates through the motor shell and extends into the motor stator; and the temperature sensor is fixed on the motor shell. During development of the motor, a corresponding relation between the temperature of a motor stator iron core and the temperature of a motor rotor winding is calibrated through experiments. When the motor runs, a motor control system detects the temperature of the motor stator through the temperature sensor, so that the temperature of the motor rotor can be obtained, and the control of the motor can be realized. When the temperature sensor is required to be maintained, the temperature sensor can be directly taken out and replaced, and the whole motor is not required to be replaced; and therefore, the maintenance cost and the maintenance time can be reduced.
Description
Technical field
The invention belongs to the electric vehicle engineering field, specially refer to a kind of drive motors and excess temperature protection method thereof of temperature sensor easy care.
Background technology
Along with the development of electric automobile, high density, high efficiency rare-earth permanent-magnet electric machine obtains using more and more widely.Because power of motor density significantly improves, for guaranteeing the reliability of motor, must solve the heat monitoring problem of motor.Because the temperature rising can cause the decline of fixed subcoil insulating performance or burn, in addition, rotor is subjected to may produce demagnetization after high temperature, and its permanent magnetism life-span also descends to some extent.
Usually magneto is all to monitor the temperature of motor by direct embedding temperature sensor in winding, and due to the restriction of the factors such as position transducer demarcation, when temperature sensor broke down, after-sale service station can't directly be opened maintenance.Therefore said structure often is subject to the life-span of temperature sensor and restricts life-span of complete machine.
Summary of the invention
The objective of the invention is to propose a kind of drive motors and excess temperature protection method thereof of temperature sensor easy care; to improve the maintenance efficiency of temperature sensor, reduce maintenance cost, thereby solve motor temperature transducer after-sales service hard problem; extend motor useful life, reduce client's complaint.
Drive motors of the present invention comprises motor and temperature sensor, and motor stator and rotor are installed in electric machine casing; Key is that described temperature sensor passes electric machine casing and stretches in motor stator, and described temperature sensor and electric machine casing are fixed.
Motor calibrates the corresponding relation between motor stator core temperature and rotor winding temperature by experiment when exploitation.When motor moved, electric machine control system detected the temperature of motor stator by temperature sensor, and then learnt the temperature of rotor, implemented the control to motor.When temperature sensor needs repairing, can directly take out temperature sensor, change new transducer and get final product, and need not to change the motor complete machine, thereby reduced maintenance cost and maintenance time.
Further, for guaranteeing that temperature test is accurate, do not cause the temperature data distortion because of certain temperature sensor fault, the motor excess temperature is damaged, described temperature sensor has three, perhaps described temperature sensor is one, and is positioned at the middle position of motor stator, and the inside of temperature sensor is provided with three thermistor core bodys.
Specifically, described electric machine casing is provided with through hole, and the position of the corresponding described through hole of motor stator is provided with recess; Described temperature sensor is fixed on housing by bolt or engage thread, and the end of described temperature sensor stretches in described recess.
Further, for guaranteeing contact well between motor stator and temperature sensor, be marked with insulating heat conductive silicon grease in the recess of described motor stator.
Further, can align the through hole of electric machine casing for the recess that guarantees motor stator, described motor stator is installed in electric machine casing by keyway.
The excess temperature protection method of the drive motors of above-mentioned temperature sensor easy care is as follows:
Described electric machine control system obtains the temperature data of each core body of each transducer or temperature sensor by wire, and calculates the temperature-averaging value of three road temperature datas; In three road temperature datas all are in motor normal working temperature scope and the deviation of three road temperature datas and temperature-averaging value during all less than preset range, the maximum that electric machine control system is got in three road temperature datas is current true temperature; The deviation that exceeds motor normal working temperature scope and all the other two-way temperature datas and temperature-averaging value when one road temperature data is during all less than preset range, and the maximum that electric machine control system is got in described all the other two-way temperature datas is current true temperature; All over preset range or when the two-way temperature data exceeds deviation that motor normal working temperature scope or one road temperature data exceed motor normal working temperature scope and all the other two-way temperature datas and temperature-averaging value and exceeds preset range at least, the electric machine control system disable motor also points out the user that temperature sensor is overhauled when the deviation of three road temperature datas and temperature-averaging value.
Drive motors of the present invention is inserted the installation of temperature sensor by the embedding outside of making into, inside, facilitate the maintain and replace of temperature sensor, improves maintenance efficiency, has reduced maintenance cost, has extended the life-span of motor, has good practicality.
Description of drawings
Fig. 1 is the structural representation of drive motors of the present invention.
Embodiment
The below contrasts accompanying drawing, by the description to embodiment, the effect of the mutual alignment between the shape of the specific embodiment of the present invention such as related each member, structure, each several part and annexation, each several part and operation principle etc. are described in further detail.
Embodiment 1:
As shown in Figure 1, the drive motors of the present embodiment comprises motor and temperature sensor 1, and motor stator 3 and rotor 4 are installed in electric machine casing 2; Electric machine casing 2 is provided with through hole, and the position of motor stator 3 corresponding described through holes is provided with recess; Described temperature sensor 1 is fixed on electric machine casing 2 by engage thread, and the end of described temperature sensor 1 stretches in the recess of motor stator 3.Temperature sensor 1 is connected with electric machine control system by wire harness.
For guaranteeing that temperature test is accurate, do not cause the temperature data distortion because of certain temperature sensor fault, the motor excess temperature is damaged, temperature sensor 1 is one, and being positioned at the middle position of motor stator 3, the inside of temperature sensor 1 is provided with three thermistor core bodys.
For guaranteeing to contact well between motor stator 3 and temperature sensor 1, be marked with insulating heat conductive silicon grease in the recess of motor stator 3.
Can align the through hole of electric machine casing 2 for the recess that guarantees motor stator 3, motor stator 3 is installed in electric machine casing 2 by keyway.
Above-mentioned drive motors excess temperature protection method is as follows:
Motor calibrates the corresponding relation between motor stator core temperature and rotor winding temperature by experiment when exploitation.When motor moved, electric machine control system detected the temperature of motor stator by temperature sensor, and then learnt the temperature of rotor, implemented the control to motor.Specifically, electric machine control system obtains the temperature data of each core body of each transducer or temperature sensor by wire, and calculates the mean value of three road temperature datas; In three road temperature datas all are in motor normal working temperature scope and the deviation of three road temperature datas and temperature-averaging value during all less than preset range, the maximum that electric machine control system is got in three road temperature datas is current true temperature; The deviation that exceeds motor normal working temperature scope and all the other two-way temperature datas and temperature-averaging value when one road temperature data is during all less than preset range, and the maximum that electric machine control system is got in described all the other two-way temperature datas is current true temperature; All over preset range or when the two-way temperature data exceeds deviation that motor normal working temperature scope or one road temperature data exceed motor normal working temperature scope and all the other two-way temperature datas and temperature-averaging value and exceeds preset range at least, the electric machine control system disable motor also points out the user that temperature sensor is overhauled when the deviation of three road temperature datas and temperature-averaging value.
Claims (7)
1. the drive motors of a temperature sensor easy care, comprise motor and temperature sensor, and motor stator and rotor are installed in electric machine casing; It is characterized in that described temperature sensor passes electric machine casing and stretches in motor stator, and described temperature sensor and electric machine casing are fixed.
2. the drive motors of temperature sensor easy care according to claim 1, is characterized in that described temperature sensor has three.
3. the drive motors of temperature sensor easy care according to claim 1, is characterized in that described temperature sensor is one, and be positioned at the middle position of motor stator, and the inside of temperature sensor is provided with three thermistor core bodys.
4. the drive motors of according to claim 1 and 2 or 3 described temperature sensor easy cares, is characterized in that described electric machine casing is provided with through hole, and the position of the corresponding described through hole of motor stator is provided with recess; Described temperature sensor is fixed on housing by bolt or engage thread, and the end of described temperature sensor stretches in described recess.
5. the drive motors of temperature sensor easy care according to claim 4 is characterized in that being marked with insulating heat conductive silicon grease in the recess of described motor stator.
6. the drive motors of temperature sensor easy care according to claim 4, is characterized in that described motor stator is installed in electric machine casing by keyway.
7. the excess temperature protection method of the drive motors of according to claim 1 and 2 or 3 described temperature sensor easy cares, it is characterized in that described electric machine control system obtains the temperature data of each core body of each transducer or temperature sensor by wire, and calculate the temperature-averaging value of three road temperature datas; In three road temperature datas all are in motor normal working temperature scope and the deviation of three road temperature datas and temperature-averaging value during all less than preset range, the maximum that electric machine control system is got in three road temperature datas is current true temperature; The deviation that exceeds motor normal working temperature scope and all the other two-way temperature datas and temperature-averaging value when one road temperature data is during all less than preset range, and the maximum that electric machine control system is got in described all the other two-way temperature datas is current true temperature; All over preset range or when the two-way temperature data exceeds deviation that motor normal working temperature scope or one road temperature data exceed motor normal working temperature scope and all the other two-way temperature datas and temperature-averaging value and exceeds preset range at least, the electric machine control system disable motor also points out the user that temperature sensor is overhauled when the deviation of three road temperature datas and temperature-averaging value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310098202.XA CN103178660B (en) | 2013-03-26 | 2013-03-26 | The driving motor of a kind of temperature sensor easy care and excess temperature protection method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310098202.XA CN103178660B (en) | 2013-03-26 | 2013-03-26 | The driving motor of a kind of temperature sensor easy care and excess temperature protection method thereof |
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| CN103178660A true CN103178660A (en) | 2013-06-26 |
| CN103178660B CN103178660B (en) | 2016-12-07 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104158374A (en) * | 2014-08-21 | 2014-11-19 | 江西工埠机械有限责任公司 | Permanent magnet synchronous motor with stator built-in temperature sensor and fatigue determination method |
| CN108345330A (en) * | 2017-01-23 | 2018-07-31 | 上海联净电子科技有限公司 | Electromechanic heating roller temperature control method and its system |
| EP3562005A1 (en) * | 2018-04-26 | 2019-10-30 | Siemens Gamesa Renewable Energy A/S | Temperature measurement for electric generator |
| CN113904303A (en) * | 2020-06-22 | 2022-01-07 | 浙江大元泵业股份有限公司 | Control algorithm of water pump motor protector and water pump motor protector |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102087150A (en) * | 2010-11-25 | 2011-06-08 | 奇瑞汽车股份有限公司 | Electric automobile motor temperature sensor system and detection method thereof |
| CN202395608U (en) * | 2011-12-13 | 2012-08-22 | 江苏常牵庞巴迪牵引系统有限公司 | Installation structure of motor temperature sensor |
-
2013
- 2013-03-26 CN CN201310098202.XA patent/CN103178660B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102087150A (en) * | 2010-11-25 | 2011-06-08 | 奇瑞汽车股份有限公司 | Electric automobile motor temperature sensor system and detection method thereof |
| CN202395608U (en) * | 2011-12-13 | 2012-08-22 | 江苏常牵庞巴迪牵引系统有限公司 | Installation structure of motor temperature sensor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104158374A (en) * | 2014-08-21 | 2014-11-19 | 江西工埠机械有限责任公司 | Permanent magnet synchronous motor with stator built-in temperature sensor and fatigue determination method |
| CN104158374B (en) * | 2014-08-21 | 2018-02-02 | 江西工埠机械有限责任公司 | Permagnetic synchronous motor and fatigue measurement method provided with stator built-in temperature sensor |
| CN108345330A (en) * | 2017-01-23 | 2018-07-31 | 上海联净电子科技有限公司 | Electromechanic heating roller temperature control method and its system |
| EP3562005A1 (en) * | 2018-04-26 | 2019-10-30 | Siemens Gamesa Renewable Energy A/S | Temperature measurement for electric generator |
| CN113904303A (en) * | 2020-06-22 | 2022-01-07 | 浙江大元泵业股份有限公司 | Control algorithm of water pump motor protector and water pump motor protector |
| CN113904303B (en) * | 2020-06-22 | 2024-04-16 | 浙江大元泵业股份有限公司 | Control algorithm of water pump motor protector and water pump motor protector |
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| CN103178660B (en) | 2016-12-07 |
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Owner name: CHERY NEW ENERGY AUTOMOBILE TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SAIC CHERY AUTOMOBILE CO., LTD. Effective date: 20150630 |
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Effective date of registration: 20150630 Address after: 241000 Yijiang, Anhui Province, Jin Hua Road, No. 226, South Road, No. Applicant after: New-energy automobile Technology Co., Ltd. of Cherry Address before: 241009 Wuhu economic and Technological Development Zone, Anhui, No. 8 Changchun Road Applicant before: Saic Chery Automobile Co., Ltd. |
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Address after: 241000 No. 226 Jin Hua Nan Road, Yijiang hi tech Industrial Development Zone, Anhui, Wuhu Patentee after: Chery New Energy Automobile Co.,Ltd. Address before: 241000 No. 226 Hua Jin South Road, Yijiang District, Anhui, Wuhu Patentee before: CHERY NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. |
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