CN111030386A - Motor rotor temperature monitoring device - Google Patents
Motor rotor temperature monitoring device Download PDFInfo
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- CN111030386A CN111030386A CN201911378202.9A CN201911378202A CN111030386A CN 111030386 A CN111030386 A CN 111030386A CN 201911378202 A CN201911378202 A CN 201911378202A CN 111030386 A CN111030386 A CN 111030386A
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- 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
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Abstract
The invention discloses a motor rotor temperature monitoring device, which can accurately acquire temperature signals of different positions of a motor rotor, and can also form a power supply through a first power supply control circuit and a second power supply control circuit to supply power to a first temperature sensing module, so that the first temperature sensing module can provide electric energy for a plurality of temperature sensors arranged on different positions of the motor rotor through continuously acquired electric energy, each temperature sensor can continuously monitor the temperature signals of different positions of the motor rotor, and finally can acquire the temperature signals continuously changed by the motor rotor in the rotating process, and the temperature signals cannot be influenced by the rotation of the motor rotor in the process of supplying power to the first temperature sensing module by the power supply, so that the motor rotor temperature monitoring device has a longer service cycle, a longer service life and a lower maintenance cost.
Description
Technical Field
The invention relates to the technical field of motor rotor temperature detection, in particular to a motor rotor temperature monitoring device.
Background
With the development of electromotion and intellectualization, the electric drive system is more and more widely applied, and the motor is used as a core power drive component of the electric drive system and plays an important role in the electric drive system. The motor converts mechanical energy into electric energy to generate driving torque, and is also used as a power source of electric appliances or various machines. Therefore, the motor is more and more important in daily life, but because the motor rotor is in a rotating state for a long time in the working process of the motor, the motor can generate a large amount of heat in the working process, and in order to prevent the motor from being in failure or damaged due to overhigh rotor temperature caused by the rotation of the rotor, the temperature of the motor rotor needs to be monitored.
At present, in the prior art, a rotor temperature estimation algorithm is mainly used for monitoring the temperature of the motor rotor, or the temperature of the motor rotor is measured through a temperature sensor arranged on the rotor, or the temperature of the motor rotor is measured through electric energy or electric signals transmitted by a slip ring. The method comprises the following steps of monitoring the temperature of a motor rotor by using a rotor temperature estimation algorithm, measuring physical parameter information such as motor stator flux linkage, stator current, stator temperature and the like, and further calculating the temperature of the motor rotor by using the rotor temperature estimation algorithm according to the physical parameter information, obviously, the method can only indirectly estimate the temperature of the motor rotor, hardly monitors the temperature change of the motor rotor, and hardly ensures the measurement precision of the temperature of the motor rotor; although the temperature change of the motor rotor can be known through the temperature sensor arranged on the rotor, the temperature sensor needs to be continuously supplied with power through a battery, the electric quantity of the battery is limited, and once the electric quantity of the battery is exhausted, the temperature sensor cannot be supplied with power, so that the temperature of the motor rotor cannot be normally measured; the slip ring structure is used for measuring the temperature of the motor rotor, and power supply of the slip ring structure belongs to contact type electric measurement, so that the service life is limited, and the maintenance cost is high.
Disclosure of Invention
In view of this, the embodiment of the present invention provides a motor rotor temperature monitoring device, so as to solve the problems that in the motor rotor temperature monitoring mode in the prior art, the measurement accuracy is poor, the temperature change of the motor rotor is difficult to monitor, the temperature of the motor rotor cannot be continuously monitored, the service life is limited, and the maintenance cost is high.
According to a first aspect, an embodiment of the present invention provides a device for monitoring a temperature of a rotor of an electric machine, including: motor shaft, electric rotor and motor stator, wherein, electric rotor with motor stator passes motor shaft and parallel arrangement still include:
the first temperature sensing module is arranged on the motor rotor and penetrates through the motor rotating shaft to be concentric with the motor rotor; the first temperature sensing module includes: the temperature sensors and the first power supply control circuit are distributed on different positions of the motor rotor, and the temperature sensors are connected with the first power supply control circuit;
the second temperature sensing module is arranged on the motor stator, is parallel to the first temperature sensing module and penetrates through the motor rotating shaft to be concentric with the motor stator; the second temperature sensing module includes: the second power supply control circuit is connected with the first power supply control circuit;
the first power supply control circuit transmits temperature signals respectively detected by the temperature sensors to the second power supply control circuit, the second power supply control circuit and the first power supply control circuit form a power supply, and electric energy output by the power supply supplies power to the first temperature sensing module.
With reference to the first aspect, in a first implementation manner of the first aspect, the first power control circuit includes:
a first microcontroller connected to the plurality of temperature sensors;
the first power supply controller is connected with the first microcontroller;
with reference to the first implementation manner of the first aspect, in a second implementation manner of the first aspect, the first power control circuit further includes:
the first communication transmission device is respectively connected with the first microcontroller and the first power supply controller;
and the first power supply controller controls the first power supply signal receiving end to output the electric energy to supply power for the first temperature sensing module.
With reference to the first aspect, in a third implementation manner of the first aspect, the second power control circuit includes:
the second communication transmission device is connected with the first communication transmission device;
and the second microcontroller is connected with the second communication transmission device.
With reference to the third implementation manner of the first aspect, in a fourth implementation manner of the first aspect, the second power control circuit further includes:
the second power supply controller is connected with the second microcontroller;
and the second power signal sending end is connected with the second power controller, and the second power signal sending end and the first power signal receiving end form the power supply.
With reference to the fourth implementation manner of the first aspect, in the fifth implementation manner of the first aspect, the first power signal receiving terminal is a power supply coil receiving terminal, and the second power signal receiving terminal is a power supply coil sending terminal.
With reference to the first aspect or any implementation manner of the first aspect, in a sixth implementation manner of the first aspect, the power supply is a power transformer concentric with the rotating shaft of the motor.
With reference to the first aspect, in a seventh implementation manner of the first aspect, the first temperature sensing module is a first PCB circuit board.
With reference to the seventh implementation manner of the first aspect, in an eighth implementation manner of the first aspect, the second temperature sensing module is a second PCB circuit board.
With reference to the eighth implementation manner of the first aspect, in the ninth implementation manner of the first aspect, the first PCB is fixedly disposed on an end surface of the motor rotor and rotates synchronously with the motor rotor, and the second PCB is fixedly disposed on the motor stator.
The technical scheme of the embodiment of the invention has the following advantages:
the invention provides a motor rotor temperature monitoring device, which can accurately acquire temperature signals of different positions of a motor rotor, and can also form a power supply through a first power supply control circuit and a second power supply control circuit to supply power to a first temperature sensing module, so that the first temperature sensing module can supply power to a plurality of temperature sensors arranged on different positions of the motor rotor through continuously acquired power, each temperature sensor can continuously monitor the temperature signals of different positions of the motor rotor, and finally can acquire the temperature signals of the motor rotor continuously changing in the rotating process, and the temperature signals cannot be influenced by the rotation of the motor rotor in the process that the power supply supplies power to the first temperature sensing module, the service cycle is longer, the service life is longer, and the maintenance cost can be reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of a device for monitoring the temperature of a rotor of a motor according to an embodiment of the present invention;
FIG. 2 is a schematic circuit diagram of a first temperature sensing module according to an embodiment of the present invention;
FIG. 3 is a schematic circuit diagram of a second temperature sensing module according to an embodiment of the present invention;
fig. 4 is a circuit connection diagram between the first power control circuit and the second power control circuit according to the embodiment of the invention.
Reference numerals:
1-a motor shaft; 2-a motor rotor; 3-a motor stator; 4-a first temperature sensing module;
5-a second temperature sensing module; 41-temperature sensor; 42-a first power control circuit;
51-a second power control circuit; 421-a first microcontroller; 422-a first power supply controller;
423-first communication transmission means; 424-first power signal receiving end;
511-a second microcontroller; 512-a second power supply controller;
513 — a second communication transmission device; 514-second power signal sender.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
An embodiment of the present invention provides a motor rotor temperature monitoring device, as shown in fig. 1, including: the motor comprises a motor rotating shaft 1, a motor rotor 2 and a motor stator 3, wherein the motor rotor 2 and the motor stator 3 penetrate through the motor rotating shaft 1 and are arranged in parallel. Specifically, the motor rotor 2 belongs to a rotating component in a motor, can rotate at a high speed around the motor rotating shaft 1, and cooperates with the motor stator 3 to realize conversion between electrical energy and mechanical energy or between mechanical energy and electrical energy, the motor stator 3 is a stationary part of the motor and mainly functions to generate a rotating magnetic field, and the motor rotor 2 mainly functions to generate electromagnetic torque by utilizing interaction between a rotor magnetic field and a stator rotating magnetic field.
Specifically, in fig. 1, the device for monitoring the temperature of the rotor of the motor in the embodiment of the present invention further includes: a first temperature sensing module 4 and a second temperature sensing module 5. First temperature-sensing module 4 can be first PCB circuit board, and second temperature-sensing module 5 can be second PCB circuit board, can set up various electronic components on first PCB circuit board, and in the same way, can set up various electronic components on second PCB circuit board. Therefore, the first temperature sensing module 4 is used for sensing first sensing information related to temperature, and the second temperature sensing module 5 is used for sensing second sensing information related to temperature, so that the temperature of the motor rotor 2 can be monitored. By mounting the first PCB on the end face of the motor rotor 2 and by mounting the second PCB on the motor stator 3, space can be saved and the rotation of the motor rotor 2 around the motor shaft 1 is facilitated.
In an embodiment of the device for monitoring the temperature of the motor rotor in the embodiment of the present invention, in fig. 1, a first temperature sensing module 4 is mounted on the motor rotor 2, and penetrates through the motor rotating shaft 1 to be concentric with the motor rotor 2. As shown in fig. 2 and 4, the first temperature sensing module 4 includes: a plurality of temperature sensors 41 and a first power control circuit 42 which are distributed at different positions of the motor rotor 2, and the plurality of temperature sensors 41 are connected to the first power control circuit 42. Specifically, in fig. 1, the first temperature sensing module 4 may be fixedly installed on the end surface of the motor rotor 2, and concentric with the motor rotating shaft 1, and may rotate synchronously with the motor rotor 2, and when the motor rotor 2 is cylindrical, it may also be fixedly installed on the side surface of the motor rotor 2, and of course, it is preferable that the first temperature sensing module 4 is fixedly installed on the end surface of the motor rotor 2, so that the temperature signal of the motor rotor 2 can be monitored quickly and accurately.
In addition, in fig. 2, a plurality of temperature sensors 41 included in the first temperature sensing module 4 are distributed on different positions of the end surface of the motor rotor 2, and can measure temperature signals of different positions of the motor rotor 2, so that the temperature signal change of the motor rotor 2 can be monitored, and the accuracy of monitoring the temperature of the motor rotor 2 is improved. Each temperature sensor 41 is closely attached to the motor rotor 2, and the gap between each temperature sensor 41 and the motor rotor 2 can be reduced. In fig. 4, the first power control circuit 42 is respectively connected to the plurality of temperature sensors 41, and in fig. 1, the first temperature sensing module 4 and the second temperature sensing module 5 form a power supply, and transmit the electric energy output by the power supply to the first temperature sensing module 4, so that the first temperature sensing module 4 can obtain the electric energy generated by the power supply.
In another embodiment, the device for monitoring the temperature of the motor rotor in the embodiment of the present invention, in fig. 1, a second temperature sensing module 5 is installed on the motor stator 3, and is arranged in parallel with the first temperature sensing module 4, and passes through the motor rotating shaft 1 to be concentric with the motor stator 3; the second temperature sensing module 5 includes: as shown in fig. 4, the second power control circuit 51 is connected to the first power control circuit 42 through the second power control circuit 51. The first power control circuit 42 transmits the temperature signals respectively detected by the plurality of temperature sensors 41 to the second power control circuit 51, the second power control circuit 51 and the first power control circuit 42 form a power supply, and the electric energy output by the power supply supplies power to the first temperature sensing module 4.
Specifically, in fig. 1, the second temperature sensing module 5 may be fixedly mounted on the motor stator 3. In fig. 4, the second power control circuit 51 mainly functions to obtain the temperature signal output by the first temperature sensing module 4, and may also form a power supply with the first power control circuit 42, so as to convert the energy of the electric energy output by the power supply, and further supply the converted electric energy to the first temperature sensing module 4.
The motor rotor temperature monitoring device in the embodiment of the invention can accurately acquire the temperature signals of different positions of the motor rotor 2, and can also form a power supply through the first power supply control circuit 42 and the second power supply control circuit 51 to supply power to the first temperature sensing module 4, so that the first temperature sensing module 4 can continuously acquire electric energy, a plurality of temperature sensors 41 arranged at different positions of the motor rotor 2 can continuously monitor the temperature signals of different positions of the motor rotor 2, and further can acquire the temperature signals of continuous change of the motor rotor 2 in the rotation process, and cannot be influenced by the rotation of the motor rotor 2 in the process of supplying power to the first temperature sensing module 4 by the power supply, the service cycle is longer, the service life is longer, and the maintenance cost can be reduced.
Example 2
An embodiment of the present invention provides a motor rotor temperature monitoring apparatus, which as a preferred implementation manner, as shown in fig. 1, includes: the motor comprises a motor rotating shaft 1, a motor rotor 2 and a motor stator 3, wherein the motor rotor 2 and the motor stator 3 penetrate through the motor rotating shaft 1 and are arranged in parallel. Specifically, the motor rotor 2 belongs to a rotating component in a motor, can rotate at a high speed around the motor rotating shaft 1, and cooperates with the motor stator 3 to realize conversion between electrical energy and mechanical energy or between mechanical energy and electrical energy, the motor stator 3 is a stationary part of the motor and mainly functions to generate a rotating magnetic field, and the motor rotor 2 mainly functions to generate electromagnetic torque by utilizing interaction between a rotor magnetic field and a stator rotating magnetic field.
Specifically, the temperature monitoring device for the motor rotor 2 in the embodiment of the present invention, in fig. 1, further includes: a first temperature sensing module 4 and a second temperature sensing module 5. First temperature-sensing module 4 can be first PCB circuit board, and second temperature-sensing module 5 can be second PCB circuit board, can set up various electronic components on first PCB circuit board, and in the same way, can set up various electronic components on second PCB circuit board. Therefore, the first temperature sensing module 4 is used for sensing first sensing information related to temperature, and the second temperature sensing module 5 is used for sensing second sensing information related to temperature, so that the temperature of the motor rotor 2 can be monitored. By mounting the first PCB on the end face of the motor rotor 2 and by mounting the second PCB on the motor stator 3, space can be saved and the rotation of the motor rotor 2 around the motor shaft 1 is facilitated.
In addition, in fig. 2, a plurality of temperature sensors 41 included in the first temperature sensing module 4 are distributed on different positions of the end surface of the motor rotor 2, and can measure temperature signals of different positions of the motor rotor 2, so that the temperature signal change of the motor rotor 2 can be monitored, and the accuracy of monitoring the temperature of the motor rotor 2 is improved. Each temperature sensor 41 is closely attached to the motor rotor 2, and the gap between each temperature sensor 41 and the motor rotor 2 can be reduced. In fig. 1, the first temperature sensing module 4 and the second temperature sensing module 5 form a power supply, and the electric energy output by the power supply is transmitted to the first temperature sensing module 4, so that the first temperature sensing module 4 can obtain the electric energy generated by the power supply.
Specifically, in fig. 1, the second temperature sensing module 5 may be fixedly mounted on the motor stator 3. In fig. 4, the second power control circuit 51 mainly functions to form a power supply with the first power control circuit 42 when acquiring the temperature signal output by the first temperature sensing module 4, so as to convert the energy of the electric energy output by the power supply and further supply the converted electric energy to the first temperature sensing module 4.
In an embodiment of the present invention, as shown in fig. 4, the first power control circuit 42 of the motor rotor temperature monitoring device includes:
in fig. 2 or 4, the first microcontroller 421 is connected to a plurality of temperature sensors 41. The first microcontroller 421 here can be a control chip for converting the temperature signals respectively detected by the plurality of temperature sensors 41 into digital signals, and corresponds to an a/D conversion device. The first microcontroller 421 belongs to the electronic components arranged on the first PCB.
In fig. 2 or fig. 4, the first power controller 422 is connected to the first microcontroller 421. The first power controller 422 may also be a control chip, which mainly functions as power conversion, and supplies power to the first temperature sensing module 4 through the converted power. The first power controller 422 also belongs to electronic components arranged on the first PCB.
In a specific embodiment, the device for monitoring the temperature of the rotor 2 of the motor in the embodiment of the present invention, in fig. 4, the first power control circuit 42 further includes:
in fig. 2 or fig. 4, the first communication transmission device 423 is connected to the first microcontroller 421 and the first power controller 422, respectively. The first communication transmission device 423 herein may be a bluetooth controller for controlling transmission of wireless signals according to a bluetooth wireless communication protocol. The first communication transmission device 423 also belongs to an electronic component arranged on the first PCB circuit board.
In fig. 2 or fig. 4, the first power signal receiving terminal 424 is connected to the first power controller 422, wherein the first power controller 422 controls the first power signal receiving terminal 424 to output the second power to supply power to the first temperature sensing module 4. Specifically, the first power signal receiving terminal 424 may be a power coil receiving terminal, and the first power controller 422 controls the first power signal receiving terminal 424 to convert the wirelessly transmitted electric energy into a voltage source with a stable voltage and a certain current supply capability based on the first communication transmission device 423, and the voltage source is used to supply power to the first temperature sensing module 4. The first power signal receiving terminal 424 also belongs to electronic components arranged on the first PCB.
In another embodiment, the device for monitoring the temperature of the rotor of the motor according to the embodiment of the present invention, as shown in fig. 4, the second power control circuit 51 includes:
in fig. 4, the second communication transmission device 513 is connected to the first communication transmission device 423. The second communication transmission device 513 may be a bluetooth controller for controlling the transmission of wireless signals according to a bluetooth wireless communication protocol, and establishes a wireless communication network with the first communication transmission device 423.
In fig. 3 or fig. 4, the second microcontroller 511 is connected to the second communication transmission device 513. The second microcontroller 511 may also be a control chip, and the second microcontroller 511 may be connected to the second communication transmission device 513 through a serial port communication bus, and is mainly configured to obtain, from the second communication transmission device 513, a temperature signal transmitted by the first temperature sensing module 4 through the first communication transmission device 423. The second microcontroller 511 belongs to the electronic components arranged on the second PCB board.
In another embodiment, the device for monitoring the temperature of the rotor 2 of the motor in the embodiment of the present invention, in fig. 4, the second power control circuit 51 further includes:
in fig. 3 or 4, the second power controller 512 is connected to the second microcontroller 511. Here, the second power controller 512 may also be a control chip, and here, the second power controller 512 also belongs to an electronic component disposed on the second PCB circuit board.
In fig. 3 or fig. 4, the second power signal transmitting terminal 514 is connected to the second power controller 512, and the second power signal transmitting terminal 514 and the first power signal receiving terminal 424 form a power supply. Specifically, the second power signal sending terminal 514 may be a power coil sending terminal, the second power controller 512 controls the second power signal sending terminal 514 to convert a stable voltage source in the second power sensing module into an alternating current, and the second power signal sending terminal 514 and the first power signal receiving terminal 424 form a power supply source, so as to provide electric energy for the first temperature sensing module 4 through the power supply source.
In a specific embodiment, in the device for monitoring the temperature of the motor rotor in the embodiment of the present invention, the power supply is a power transformer concentric with the motor shaft 1. For example: the second power controller 512 of the second temperature sensing module 5 controls the transmitting end of the power supply coil to convert the stable voltage source output by the second temperature sensing module 5 into alternating current, and the alternating current passes through the transmitting end of the power supply coil and the receiving end of the power supply coil of the first temperature sensing module 4 to form a concentric transformer, so that the electric energy on the side of the motor stator is transmitted to the side of the motor rotor to supply power to the first temperature sensing module 4 of the motor rotor 2, and the power transformer is the concentric transformer and is concentric with the motor rotating shaft 1. Therefore, the motor rotor temperature monitoring device in this embodiment supplies power through the concentric transformer, and can continuously provide power for the plurality of temperature sensors 41 in the first temperature sensing module 4, and it is not necessary to worry about that the normal operation of the motor rotor 2 is affected because the battery is installed in the power supply process, once the battery power is exhausted and cannot supply power for the temperature sensors 41, and the concentric transformer belongs to non-contact power transmission, and is not affected by the rotation of the motor rotor 2 in the power transmission process, so that the motor rotor temperature monitoring device can be used for a long time, has a long service life, and can be maintenance-free.
According to the temperature monitoring device for the motor rotor, disclosed by the embodiment of the invention, the first PCB is fixedly arranged on the end surface of the motor rotor 2 and synchronously rotates with the motor rotor 2, and the second PCB is fixedly arranged on the motor stator 3. First PCB circuit board is fixed to be set up on 2 terminal surfaces of electric motor rotor, with electric motor rotor 2 synchronous revolution, can real-time supervision electric motor rotor 2's temperature signal change. And the second PCB circuit board of the motor stator side and the first PCB circuit board of the motor rotor side are provided with the same coil in the center, the coil is formed by PCB wiring, the two coils are concentric with the motor rotating shaft 1, one is positioned at the motor stator side, the other is positioned at the motor rotor side, because the two coils are concentrically arranged, no matter how the motor rotor 2 rotates, the two coils can always form a concentric transformer, wireless transmission of electric energy can be realized through electromagnetic induction, the electric energy is transmitted to the first temperature induction module 4 from the second temperature induction module 5 of the motor stator side, and the wireless power supply of the first temperature induction module 4 of the motor rotor side is realized.
In the temperature monitoring device for the motor rotor in the embodiment of the invention, the second temperature induction module 5 at the motor stator side transmits electric energy to the first temperature induction module 4 at the motor rotor side through the concentric transformer formed by the concentric coils and supplies power to the first temperature induction module 4, and the first temperature induction module 4 at the motor rotor side collects the temperature signal of the motor rotor 2 and transmits the temperature signal to the second temperature induction module 5 at the motor stator side through the Bluetooth controller, so that the physical measurement of the temperature of the motor rotor 2 is completed. In addition, the temperature signal and the electric energy transmission in the embodiment of the invention both adopt a non-contact mode, the problem of wireless power supply under different motor rotating speeds is solved by arranging the concentric transformer consisting of two coils concentric with the motor rotating shaft 1, and the accurate physical measurement of the multi-position temperature field of the motor rotor 2 can be realized.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. An electric machine rotor temperature monitoring device comprising: motor shaft, electric rotor and motor stator, wherein, electric rotor with motor stator passes motor shaft and parallel arrangement, its characterized in that still includes:
the first temperature sensing module is arranged on the motor rotor and penetrates through the motor rotating shaft to be concentric with the motor rotor; the first temperature sensing module includes: the temperature sensors and the first power supply control circuit are distributed on different positions of the motor rotor, and the temperature sensors are connected with the first power supply control circuit;
the second temperature sensing module is arranged on the motor stator, is parallel to the first temperature sensing module and penetrates through the motor rotating shaft to be concentric with the motor stator; the second temperature sensing module includes: the second power supply control circuit is connected with the first power supply control circuit;
the first power supply control circuit transmits temperature signals respectively detected by the temperature sensors to the second power supply control circuit, the second power supply control circuit and the first power supply control circuit form a power supply, and electric energy output by the power supply supplies power to the first temperature sensing module.
2. The electric machine rotor temperature monitoring device of claim 1, wherein the first power control circuit comprises:
a first microcontroller connected to the plurality of temperature sensors;
and the first power supply controller is connected with the first microcontroller.
3. The electric machine rotor temperature monitoring apparatus of claim 2, wherein the first power control circuit further comprises:
the first communication transmission device is respectively connected with the first microcontroller and the first power supply controller;
and the first power supply controller controls the first power supply signal receiving end to output the electric energy to supply power for the first temperature sensing module.
4. The electric machine rotor temperature monitoring device of claim 3, wherein the second power control circuit comprises:
the second communication transmission device is connected with the first communication transmission device;
and the second microcontroller is connected with the second communication transmission device.
5. The electric machine rotor temperature monitoring apparatus of claim 4, wherein the second power control circuit further comprises:
the second power supply controller is connected with the second microcontroller;
and the second power signal sending end is connected with the second power controller, and the second power signal sending end and the first power signal receiving end form the power supply.
6. The apparatus according to claim 5, wherein the first power signal receiving terminal is a power coil receiving terminal, and the second power signal receiving terminal is a power coil sending terminal.
7. An electric machine rotor temperature monitoring apparatus according to any of claims 1 to 6, in which the power supply is a power transformer concentric with the machine shaft.
8. The electric machine rotor temperature monitoring device of claim 1, wherein the first temperature sensing module is a first PCB circuit board.
9. The electric machine rotor temperature monitoring device of claim 8, wherein the second temperature sensing module is a second PCB circuit board.
10. The apparatus according to claim 9, wherein the first PCB is fixedly disposed on an end surface of the motor rotor to rotate synchronously with the motor rotor, and the second PCB is fixedly disposed on the motor stator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911378202.9A CN111030386A (en) | 2019-12-27 | 2019-12-27 | Motor rotor temperature monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911378202.9A CN111030386A (en) | 2019-12-27 | 2019-12-27 | Motor rotor temperature monitoring device |
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| CN111030386A true CN111030386A (en) | 2020-04-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113125026A (en) * | 2021-04-02 | 2021-07-16 | 上海卓荃电子科技有限公司 | Motor rotor temperature measurement system, method for detecting motor rotor temperature and application |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113125026A (en) * | 2021-04-02 | 2021-07-16 | 上海卓荃电子科技有限公司 | Motor rotor temperature measurement system, method for detecting motor rotor temperature and application |
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