CN209200869U - A kind of system of motor and detection motor internal temperature - Google Patents
A kind of system of motor and detection motor internal temperature Download PDFInfo
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- CN209200869U CN209200869U CN201820632592.2U CN201820632592U CN209200869U CN 209200869 U CN209200869 U CN 209200869U CN 201820632592 U CN201820632592 U CN 201820632592U CN 209200869 U CN209200869 U CN 209200869U
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Abstract
The utility model discloses the systems of a kind of motor and detection motor internal temperature.The motor includes casing, end cap, stator and rotor, coating is evenly coated on the rotor tip, for the coating for improving emissivity and reducing reflectivity, the position that the rotor tip is corresponded on the end cap is provided at least one first mounting hole；When the temperature to rotor detects, non-contact temperature sensor is fixed on the end cap by first mounting hole, and the distance between the control non-contact temperature sensor and rotor tip are within the scope of pre-determined distance, according to the temperature data of the rotor tip of non-contact temperature sensor acquisition, motor internal temperature is measured in real time.The utility model realizes the temperature of non-contact detection rotor.
Description
Technical field
The utility model relates to motor temperature detection fields, and in particular to a kind of motor and detection motor internal temperature are
System.
Background technique
With getting worse for environmental pollution and energy crisis, develop low discharge capacity, high efficiency, low cost electric car at
For the hot fields of domestic and international automotive research.Wherein, core component of the motor as electric car, it is often required that it is with higher
Torque and power density, thus caused by motor overheating problem it is also more serious.It is researched and developed in test and use process in motor,
The temperature of key position is fast and accurately measured, motor overheat protector can be correctly instructed, improves motor service life.
Currently, the method for measurement motor internal temperature mainly uses contaction measurement method, this method mainly has two
A disadvantage.First the disadvantage is that: need for thermometry meter (such as thermocouple and thermal resistance) to be fixed on measurement body surface, installation is more
Difficulty, and the heat-transfer path of winding can be destroyed；Second the disadvantage is that: temperature element and measurement object between inevitably exist one
Fixed thermal resistance, lead to problems such as measurement temperature is relatively low, transient state thermometric delay long-term existence.In addition, since motor is worked
Cheng Zhong, rotor are in high-speed rotating state, and therefore, this contaction measurement method can only detect the temperature of stator, can not
Detect the temperature of rotor.
Utility model content
In view of the above problems, the utility model is proposed to overcome the above problem in order to provide one kind or at least partly solve
Certainly method, system and the motor of the detection motor internal temperature of the above problem.
One aspect according to the present utility model, provides a kind of motor, the motor include casing, end cap, stator and
Rotor is evenly coated with coating on the rotor tip, and the coating on the rotor tip is for improving emissivity and reducing anti-
Rate is penetrated, the position that the rotor tip is corresponded on the end cap is provided at least one first mounting hole；
It is when the temperature to rotor detects, non-contact temperature sensor is solid by first mounting hole installation
It is scheduled on the end cap, and the distance between the control non-contact temperature sensor and rotor tip are in pre-determined distance range
It is interior, according to the temperature data of the rotor tip of non-contact temperature sensor acquisition, motor internal temperature is carried out real-time
Detection.
According to the other side that the utility model is sent out, a kind of system for detecting motor internal temperature, the system are provided
System includes data processing equipment, at least one non-contact temperature sensor and motor；
The motor includes casing, end cap, stator and rotor, is evenly coated with coating on the rotor tip, and described turn
Coating on sub- end corresponds to the position setting of the rotor tip for improving emissivity and reducing reflectivity on the end cap
There is at least one first mounting hole；
The non-contact temperature sensor is mounted in first mounting hole, and the non-contact temperature sensor
The distance between rotor tip is within the scope of pre-determined distance, for acquiring the temperature data of rotor tip, and by the rotor
The temperature data of end is sent to the data processing equipment by cable；
The data processing equipment, the temperature of the rotor tip for being acquired according to the non-contact temperature sensor
Degree is it is judged that whether the temperature value of rotor is more than rotor reliability temperature threshold, if so, carrying out early warning processing and/or to described
Motor carries out overheat protector.
The beneficial effects of the utility model are: the technical solution of the utility model is improved by the structure to motor,
On the one hand it is evenly coated with coating in rotor tip, rotor tip is carried out improving emissivity and reduces the processing of reflectivity, with
Improve the measurement accuracy of temperature of rotor；On the other hand mounting hole is arranged in the position of respective rotor end on end cap, so as to will be non-
Contact type temperature sensor is fixed on the temperature that rotor is detected on end cap by mounting hole, realizes non-contact detection and turns
The temperature of son, solves the technical issues of contact thermometry meter method can not detect temperature of rotor.The embodiment of the utility model installation
It is convenient, and the internal heat dissipating path of rotor will not be destroyed, and compared to contact thermometry meter method, temperature element and measurement object
Between be not present thermal resistance, transient temperature detect the response time it is short, can detect more accurately rotor transient temperature variation.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and being implemented in accordance with the contents of the specification, and in order to allow above and other purpose, feature of the utility model
It can be more clearly understood with advantage, it is special below to lift specific embodiment of the present utility model.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as practical to this
Novel limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 shows the process that the method for motor internal temperature is detected according to one of the utility model one embodiment
Figure；
Fig. 2 shows the structural schematic diagrams according to one of the utility model one embodiment motor；
Fig. 3 shows the structural schematic diagram according to another motor in the utility model one embodiment；
Fig. 4 shows the structure that the system of motor internal temperature is detected according to one of the utility model one embodiment
Schematic diagram；
Fig. 5 shows the knot of the system according to another detection motor internal temperature in the utility model one embodiment
Structure schematic diagram.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
Fig. 1 shows the process that the method for motor internal temperature is detected according to one of the utility model one embodiment
Figure, as shown in Figure 1, the method for the detection motor internal temperature, motor include casing, end cap, stator and rotor, feature exists
In method includes:
S110 is evenly coated with coating on rotor tip, and the coating is for improving emissivity and reducing reflectivity.
Such as the coating of coating is graphene.Graphene has extraordinary heat-conductive characteristic.Pure flawless single layer
The thermal coefficient of graphene is up to 5300W/mK, is the highest carbon material of thermal coefficient so far, is higher than single-walled carbon nanotube
(3500W/mK) and multi-walled carbon nanotube (3000W/mK).When it is as carrier, thermal coefficient is also up to 600W/mK.At this
In it should be noted why being evenly coated with coating on rotor tip, its object is to improve rotor end surface
Emissivity, and reduce the reflectivity of rotor end surface.Certainly, in practical applications, other can also be coated in rotor tip
Coating with high emissivity and antiradar reflectivity, the application are not construed as limiting the material of coating.
S120, at least one first mounting hole is arranged in the position of respective rotor end on end cap；
Non-contact temperature sensor is fixed on end cap by S130 by the first mounting hole, is controlled contactless
The distance between temperature sensor and rotor tip are within the scope of pre-determined distance；
In the present embodiment, non-contact temperature sensor takes the form of infrared sensor, such as infrared probe, still,
It should be appreciated that non-contact temperature sensor can take the other forms of noncontacting proximity sensor.
S140, according to non-contact temperature sensor acquisition rotor tip temperature data, to motor internal temperature into
Row real-time detection.
It follows that the technical solution of the utility model is improved by the structure to motor, on the one hand in rotor-end
Portion is evenly coated with coating, carries out improving emissivity to rotor tip and reduces the processing of reflectivity, to improve temperature of rotor
Measurement accuracy；On the other hand at least one first mounting hole is arranged in the position of respective rotor end on end cap, to connect non-
Touch temperature sensor is fixed on the temperature that rotor is detected on end cap by the first mounting hole, realizes non-contact detection
The temperature of rotor solves the technical issues of contact thermometry meter method can not detect temperature of rotor.The embodiment of the utility model peace
Dress is convenient, and will not destroy the internal heat dissipating path of rotor, and compared to contact thermometry meter method, temperature element and measurement object
Thermal resistance is not present between body, the transient temperature detection response time is short, can detect that the transient temperature of rotor becomes more accurately
Change.
In the present embodiment, this method further comprises:
S150 calculates the temperature value of rotor according to the temperature data of the rotor tip of non-contact temperature sensor acquisition,
If wherein the temperature data of the rotor tip of acquisition has multiple, according to being averaged for multiple temperature datas of the rotor tip of acquisition
Value calculates the temperature value of rotor；
The present embodiment refers to: multiple first mounting holes are arranged in the position of respective rotor end on end cap, these are multiple
First mounting hole can have identical radius of a circle, that is, be all disposed on the same concentric circle, can also respectively have
Different radius of a circle or part radiuss of a circle having the same.Each corresponding first mounting hole be respectively mounted one it is contactless
Sensor, thus simultaneously using the temperature value of multiple noncontacting proximity sensors detection rotor tip, at this point, calculating the rotor of acquisition
The average value of multiple temperature datas of end, using the average value as the temperature value of rotor.That is, when acquisition rotor tip temperature
When the number of noncontacting proximity sensor is multiple, the temperature value of rotor is determined using averaging method.When the rotation speed of rotor is very fast
When, it acquires the temperature of rotor simultaneously using multiple noncontacting proximity sensors, the detection accuracy of temperature of rotor can be enhanced.
S160 judges whether the temperature value of rotor is more than rotor reliability temperature threshold, if being more than, carries out early warning processing
And/or overheat protector is carried out to motor.
In the present embodiment, rotor reliability temperature threshold can be 180 DEG C, in practical applications, can be according to actual needs
Rotor reliability temperature threshold is set, here, being not construed as limiting to rotor reliability temperature threshold.It is assumed that utilizing a contactless temperature
The temperature data for spending the rotor tip of sensor acquisition is A1, utilizes the temperature number for the rotor tip that above-mentioned averaging method is calculated
According to for A2, by A1 or A1 compared with rotor reliability temperature threshold (such as 180 DEG C), if A1 is more than rotor reliability temperature threshold
(such as 180 DEG C) or A2 be more than rotor reliability temperature threshold (such as 180 DEG C), then carry out early warning processing and/or to motor into
Row overheat protector improves the service life of motor to improve the safety of motor operation.Early warning processing can by sound,
Picture, video or its mode combined carry out early warning, are not construed as limiting here to the mode of early warning processing.Overheat protector includes
The power supply and control motor for disconnecting motor such as stop working at the operation.
In another embodiment of the utility model, the method for detection motor internal temperature as shown in Figure 1, this method
Further comprise:
At least one stator test point is arranged in the end of stator and/or side in S210, in each stator test point
Coat coating evenly, to improve the emissivity of stator test point, and reduce the reflectivity of stator test point, and in end cap and/or
Second mounting hole is arranged in position where corresponding to each stator test point on casing；
In the present embodiment, including at least one stator test point only is arranged in the end of stator, only set in the side of stator
At least one stator test point is set, and at least one stator test point is set in the end of stator and side simultaneously, and by
It is motionless in stator, therefore the position where each corresponding stator test point is provided with second mounting hole, so as to
In installation noncontacting proximity sensor.That is, the quantity of stator test point and the quantity of noncontacting proximity sensor are an a pair
It answers.In addition, the area of stator test point be it is adjustable, it is main to meet two during adjusting stator test point area
Condition, first condition is: no more than the size of stator end and lateral stator；Second condition is: it is fixed to guarantee
The detection accuracy of sub- temperature.
Non-contact temperature sensor is fixed on end cap and/or casing by S220 by the second mounting hole, control
The distance between non-contact temperature sensor and corresponding stator test point are within the scope of pre-determined distance；
S230, according to the temperature data of the stator test point of non-contact temperature sensor acquisition, to the temperature inside motor
Degree is measured in real time.
It follows that the technical solution of the utility model not only can be using the temperature of contactless method detection rotor
Degree, and can be realized through contactless method using the temperature of contactless method detection stator to motor inside
Rotor and/or the temperature of stator detected.When detecting the temperature of stator, on the one hand in the end of stator and/or side
At least one stator test point is set, is evenly coated with coating in each stator test point, to stator end and/or side into
Row improves emissivity and reduces the processing of reflectivity, to improve the measurement accuracy of stator temperature；On the other hand to the structure of motor
It is improved further, the position setting mounting hole where each stator test point is corresponded on end cap and/or casing, in order to
Noncontacting proximity sensor is fixed on end cap and/or casing, the temperature of non-contact detection stator is realized, solves
The technical issues of contact thermometry meter method can not accurately detect stator temperature.The embodiment of the utility model is easy for installation, and will not
The internal heat dissipating path of stator winding is destroyed, and compared to contact thermometry meter method, between temperature element and measurement object not
There are thermal resistance, the transient temperature detection response time is short, can detect the transient temperature variation of stator more accurately.
In the present embodiment, this method further comprises:
S240 calculates the temperature of stator according to the temperature data of the stator test point of non-contact temperature sensor acquisition
Value, wherein taking multiple temperature datas of the stator test point of acquisition if the temperature data of the stator test point of acquisition has multiple
In temperature value of the maximum value as stator；
This implementation refers to: in the end of stator and/or side, at least multiple stator test points are set, and end cap and/
Or second mounting hole, and each corresponding first mounting hole is arranged in the position where corresponding to each stator test point on casing
It is mounted on a noncontacting proximity sensor, that is to say, that while multiple stators are detected using multiple noncontacting proximity sensors
Temperature value, at this point, taking temperature value of the maximum value as stator in multiple temperature datas of the stator test point of acquisition.That is,
When the number of noncontacting proximity sensor is multiple, the temperature value of stator is determined using most value method.Utilize multiple contactless biographies
Sensor when stator temperature can be prevented uneven, is accurately examined stator temperature in the temperature of different location acquisition stator
It surveys.
S250 judges whether the temperature value of stator test point is more than stator reliability temperature threshold, if being more than, carries out early warning
It handles and/or overheat protector is carried out to motor.
In the present embodiment, stator reliability temperature threshold can be 180 DEG C, in practical applications, can be according to actual needs
Stator reliability temperature threshold is set, here, being not construed as limiting to stator reliability temperature threshold.It is assumed that utilizing a contactless temperature
The temperature data for spending the stator of sensor acquisition is B1, and the temperature data for the stator end being calculated using above-mentioned most value method is
B2, by B1 or B1 compared with stator reliability temperature threshold (such as 180 DEG C), if B1 is more than stator reliability temperature threshold (example
Such as 180 DEG C) or B2 be more than stator reliability temperature threshold (such as 180 DEG C), then carry out early warning processing and/or motor carried out
Overheat protector improves the service life of motor to improve the safety of motor operation.Early warning processing can pass through sound, figure
Piece, video or its mode combined carry out early warning, are not construed as limiting here to the mode of early warning processing；Overheat protector includes disconnected
The power supply and control motor for opening motor such as stop working at the operation.
In the present embodiment, the method for detection motor internal temperature as shown in Figure 1, this method further comprises: each
Screen unit, screen unit ground connection, for passing to non-contact temperature is arranged in the collection terminal periphery of non-contact temperature sensor
The collection terminal of sensor carries out electromagnetic interference shield.
In the present embodiment, screen unit includes two kinds of structures, the first structure is tubular structure, which can be with
The same diameter of noncontacting proximity sensor；Second of structure has the tubular structure of open-work, and the radius size of open-work can guarantee non-connect
Touch sensor can acquire enough temperature signals.The tubular structure can with the same diameter of noncontacting proximity sensor, alternatively, non-
The radius size of touch sensor and the radius size of open-work be not identical, when the radius size and open-work of noncontacting proximity sensor
Radius size it is not identical when, have attachment device between noncontacting proximity sensor and screen unit, which can will be non-
Touch sensor is fixedly connected with screen unit.
Fig. 2 shows the structural schematic diagrams according to one of the utility model one embodiment motor, as shown in Fig. 2,
The motor 100 includes casing 101, (end cap 102 is (fixed including drive end bearing bracket 102-1 and rear end cap 102-2), stator 103 for end cap 102
Including stator core 103-1 and stator winding 103-2), rotor 104, (rotor 104 includes rotor core 104-1, rotor to son 103
End 104-2 and a rotor's check ring 104-3) and shaft 105, high emissivity and low anti-has been evenly coated on rotor tip 104-2
The coating of rate is penetrated, the position of respective rotor end 104-2 is provided at least one first mounting hole on end cap 102；
When the temperature to rotor 104 detects, non-contact temperature sensor 200 is installed by the first mounting hole
Be fixed on end cap 102, and control the distance between non-contact temperature sensor 200 and rotor tip 104-2 preset away from
From in range, according to the temperature data for the rotor tip 104-2 that non-contact temperature sensor 200 acquires, to motor inside temperature
Degree is measured in real time.
Wherein, non-contact temperature sensor 200 takes the form of infrared sensor, such as infrared probe, still, should
Understand, non-contact temperature sensor 200 can take the other forms of noncontacting proximity sensor.
It can be seen that the technical solution of the utility model is improved by the structure to motor, on the one hand in rotor-end
Portion is evenly coated with coating, carries out improving emissivity to rotor tip and reduces the processing of reflectivity, to improve temperature of rotor
Measurement accuracy；On the other hand at least one first mounting hole is arranged in the position of respective rotor end on end cap, to connect non-
Touch temperature sensor is fixed on the temperature that rotor is detected on end cap by the first mounting hole, realizes non-contact detection
The temperature of rotor solves the technical issues of contact thermometry meter method can not detect temperature of rotor.The embodiment of the utility model peace
Dress is convenient, and will not destroy the internal heat dissipating path of rotor, and compared to contact thermometry meter method, temperature element and measurement object
Thermal resistance is not present between body, the transient temperature detection response time is short, can detect that the transient temperature of rotor becomes more accurately
Change.
In the present embodiment, the end and/or side of stator 103 are provided at least one stator test point 106, each stator
It is evenly coated with coating in test point 106, the coating is for improving emissivity and reducing reflectivity, on end cap 102 or casing 101
Position where corresponding each stator test point 106 is provided with second mounting hole；
When the temperature to stator 103 detects, non-contact temperature sensor 200 is installed by the second mounting hole
Be fixed on end cap 102 and/or casing 101, and control non-contact temperature sensor 200 and corresponding stator test point 106 it
Between distance within the scope of pre-determined distance, according to non-contact temperature sensor 200 acquire stator test point 106 temperature number
According to being measured in real time to the temperature inside motor.
Fig. 2 is only to illustrate the side setting stator test point 106 of stator 103, and setting second is installed on casing 101
Hole；Certainly, as shown in figure 3, stator test point 106 only can be arranged in the end of stator 103, at this time on end cap (before such as
End cap or rear end cap) second mounting hole of the corresponding setting of stator test point 106；It can also be simultaneously in the end and side of stator 103
Stator test point 106 is arranged in portion, and the second mounting hole is arranged in corresponding stator test point 106 simultaneously on end cap and casing at this time.
It follows that the technical solution of the utility model not only can be using the temperature of contactless method detection rotor
Degree, and can be realized through contactless method using the temperature of contactless method detection stator to motor inside
Rotor and/or the temperature of stator detected.When detecting the temperature of stator, on the one hand in the end of stator and/or side
At least one stator test point is set, is evenly coated with coating in each stator test point, raising hair is carried out to rotor tip
It penetrates rate and reduces the processing of reflectivity, to improve the measurement accuracy of temperature of rotor；On the other hand the structure of motor is made further
Improvement, the position where each stator test point is corresponded on end cap and/or casing, one the second mounting hole is set, in order to
Noncontacting proximity sensor is fixed on end cap and/or casing, the temperature of non-contact detection stator is realized, solves
The technical issues of contact thermometry meter method can not accurately detect stator temperature.The embodiment of the utility model is easy for installation, and will not
The internal heat dissipating path of stator winding is destroyed, and compared to contact thermometry meter method, between temperature element and measurement object not
There are thermal resistance, the transient temperature detection response time is short, can detect the transient temperature variation of stator more accurately.
In addition, internal screw thread is provided in the first mounting hole and/or the second mounting hole, non-contact temperature sensor 200
The external screw thread to match is provided on shell, non-contact temperature sensor 200 is installed by the way of being threaded into mounting hole
It is fixed on end cap 102 and/or casing 101.In other implementations, non-contact temperature can also be passed using mode for dispensing glue
Sensor is fixed in the first mounting hole and/or the second mounting hole.
Fig. 4 shows the structure that the system of motor internal temperature is detected according to one of the utility model one embodiment
Schematic diagram, Fig. 5 show the knot of the system according to another detection motor internal temperature in the utility model one embodiment
Structure schematic diagram, as shown in Figures 4 and 5, the system 400 or 500 of the detection motor internal temperature include data processing equipment 300, extremely
A few non-contact temperature sensor 200 and motor 100 or motor shown in fig. 5 100 as shown in Figure 4；As shown in Figure 4
The difference of motor 100 and motor 100 shown in fig. 5 be that the installation site of noncontacting proximity sensor is different, in practical application
In, it can be set as needed the quantity and installation site of noncontacting proximity sensor, tool of the application to noncontacting proximity sensor
Body quantity and installation site are not construed as limiting.
Non-contact temperature sensor 200 is mounted in the mounting hole on end cap 102 and/or casing 101, is turned for acquiring
The temperature data of sub- end 104-2 and/or stator test point 106, and temperature data is sent to data processing dress by cable
Set 300；
Data processing equipment 300, the temperature of the rotor tip 104-2 for being acquired according to non-contact temperature sensor 200
Degree is it is judged that whether the temperature value of rotor 104 is more than rotor reliability temperature threshold, and/or according to non-contact temperature sensor
The temperature data of the stator test point 106 of 200 acquisitions judges whether stator temperature is more than stator reliability temperature threshold, as long as having
One is more than, then carries out early warning processing and/or carry out overheat protector to motor 100.
It should be noted that the difference of cable and electric wire: (one), cable and electric wire generally all by core wire, insulating covering and
Protect three component part compositions of crust.Electric wire is made of one or a few soft conducting wire, and outer bread is with light and soft sheath；
Cable is made of one or a few insulating bag conducting wire, and outside is wrapped again with metal or tough and tensile outer layer made of rubber.(2), both simultaneously
Not stringent boundary.Usually by core number is few, product diameter is small, the simple product of structure is known as electric wire, what is do not insulated is known as
Bare wire, others are known as cable；Conductor cross sectional area biggish (be greater than 6 square millimeters) is known as big electric wire, lesser (be less than or
Equal to 6 square millimeters) it is known as small electric wire, insulated electric conductor is also known as cotton covered wire.Cable generally has 2 layers or more of insulation, Duo Shuoshi
Multicore knot.In practical applications, temperature data both can be sent to data processing equipment by cable by noncontacting proximity sensor,
Temperature data can also be sent to data processing equipment by electric wire, the application passes the data of non-contact temperature sensor
Defeated mode is not construed as limiting.
In the present embodiment, the collection terminal periphery of non-contact temperature sensor 200 is provided with screen unit, and screen unit connects
Ground carries out electromagnetic interference shield for the collection terminal to non-contact temperature sensor 200.
Wherein, screen unit include two kinds of structures, the first structure is tubular structure, the tubular structure can with it is non-contact
The same diameter of formula sensor；Second of structure has the tubular structure of open-work, and the radius size of open-work can guarantee contactless biography
Sensor can acquire enough temperature signals.The tubular structure can with the same diameter of noncontacting proximity sensor, alternatively, contactless
The radius size of sensor and the radius size of open-work be not identical, when the radius size of noncontacting proximity sensor and the radius of open-work
When size is not identical, there is attachment device between noncontacting proximity sensor and screen unit, which can will be contactless
Sensor is fixedly connected with screen unit.
It should be noted that being detected shown in the course of work and Fig. 1 of the system 400 or 500 of detection motor internal temperature
The implementation process of the method for motor internal temperature corresponds to identical, has been discussed in detail above, details are not described herein.
In conclusion the technical solution of the utility model is improved by the structure to motor, on the one hand in rotor-end
Portion is evenly coated with coating, carries out improving emissivity to rotor tip and reduces the processing of reflectivity, to improve temperature of rotor
Measurement accuracy；On the other hand at least one first mounting hole is arranged in the position of respective rotor end on end cap, to connect non-
Touch temperature sensor is fixed on the temperature that rotor is detected on end cap by the first mounting hole, realizes non-contact detection
The temperature of rotor solves the technical issues of contact thermometry meter method can not detect temperature of rotor.The embodiment of the utility model peace
Dress is convenient, and will not destroy the internal heat dissipating path of rotor, and compared to contact thermometry meter method, temperature element and measurement object
Thermal resistance is not present between body, the transient temperature detection response time is short, can detect that the transient temperature of rotor becomes more accurately
Change.
Above description is only a specific implementation of the present invention, under the above-mentioned introduction of the utility model, this field
Technical staff can carry out other improvement or deformation on the basis of the above embodiments.It will be understood by those skilled in the art that
Above-mentioned specific descriptions only preferably explain the purpose of this utility model, and the protection scope of the utility model is with claim
Subject to protection scope.
Claims (10)
1. a kind of motor, the motor includes casing, end cap, stator and rotor, which is characterized in that on the rotor tip uniformly
Ground coats coating, and the coating corresponds to the position of the rotor tip for improving emissivity and reducing reflectivity on the end cap
It installs and is equipped at least one first mounting hole；
When the temperature to rotor detects, non-contact temperature sensor is fixed on by first mounting hole
On the end cap, and the distance between the non-contact temperature sensor and rotor tip are controlled within the scope of pre-determined distance,
According to the temperature data of the rotor tip of non-contact temperature sensor acquisition, motor internal temperature is examined in real time
It surveys.
2. motor as described in claim 1, which is characterized in that the end and/or side of the stator are provided at least one
Stator test point is evenly coated with coating in each stator test point, the coating for improving emissivity and reducing reflectivity,
Position where corresponding to each stator test point on the end cap or casing is provided with second mounting hole；
When the temperature to stator detects, non-contact temperature sensor is fixed on by second mounting hole
On the end cap and/or casing, and controls the distance between the non-contact temperature sensor and corresponding stator test point and exist
Within the scope of pre-determined distance, according to the temperature data of the stator test point of non-contact temperature sensor acquisition, in motor
The temperature in portion is measured in real time.
3. motor as claimed in claim 2, which is characterized in that set in first mounting hole and/or second mounting hole
It is equipped with internal screw thread, the external screw thread to match, the contactless temperature are provided on the shell of the non-contact temperature sensor
Degree sensor is fixed on the end cap and/or the casing by the way of being threaded into the mounting hole.
4. motor as claimed in claim 2, which is characterized in that the non-contact temperature sensor is pacified using mode for dispensing glue
Dress is fixed in the first mounting hole and/or second mounting hole.
5. it is a kind of detect motor internal temperature system, which is characterized in that the system comprises data processing equipment, at least one
Non-contact temperature sensor and motor；
The motor includes casing, end cap, stator and rotor, and coating, the rotor-end are evenly coated on the rotor tip
Coating in portion for improving emissivity and reduce reflectivity, corresponded on the end cap rotor tip position be provided with to
Few first mounting hole；
The non-contact temperature sensor is mounted in first mounting hole, and the non-contact temperature sensor with turn
The distance between sub- end is within the scope of pre-determined distance, for acquiring the temperature data of rotor tip, and by the rotor tip
Temperature data the data processing equipment is sent to by cable；
The data processing equipment, the temperature number of the rotor tip for being acquired according to the non-contact temperature sensor
It is judged that whether the temperature value of rotor is more than rotor reliability temperature threshold, if so, carrying out early warning processing and/or to the motor
Carry out overheat protector.
6. system as claimed in claim 5, which is characterized in that the end and/or side of the stator of the motor be provided with to
Lack a stator test point, be evenly coated with coating in each stator test point, the coating in the stator test point is for mentioning
High emissivity and reflectivity is reduced, the position where corresponding to each stator test point on the end cap or casing is provided with one the
Two mounting holes；
The non-contact temperature sensor is mounted in second mounting hole, and the non-contact temperature sensor with it is right
Answer the distance between stator test point within the scope of pre-determined distance, for acquiring the temperature data of stator test point, and will be described
Temperature data is sent to the data processing equipment by cable；
The data processing equipment is also used to the stator test point for acquiring according to the non-contact temperature sensor
Temperature data judge whether the temperature value of stator is more than stator reliability temperature threshold, if so, carrying out early warning processing and/or right
The motor carries out overheat protector.
7. system as claimed in claim 6, which is characterized in that the collection terminal periphery of the non-contact temperature sensor is arranged
There is screen unit, the screen unit ground connection carries out electromagnetic interference for the collection terminal to the non-contact temperature sensor
Shielding.
8. system as claimed in claim 7, which is characterized in that the screen unit is tubular structure or the pipe with open-work
Shape structure.
9. system as claimed in claim 6, which is characterized in that set in first mounting hole and/or second mounting hole
It is equipped with internal screw thread, the external screw thread to match, the contactless temperature are provided on the shell of the non-contact temperature sensor
Degree sensor is fixed on the end cap and/or the casing by the way of being threaded into the mounting hole.
10. system as claimed in claim 6, which is characterized in that the non-contact temperature sensor uses mode for dispensing glue
It is fixed in the first mounting hole and/or second mounting hole.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820632592.2U CN209200869U (en) | 2018-04-28 | 2018-04-28 | A kind of system of motor and detection motor internal temperature |
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| CN201820632592.2U CN209200869U (en) | 2018-04-28 | 2018-04-28 | A kind of system of motor and detection motor internal temperature |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108923593A (en) * | 2018-04-28 | 2018-11-30 | 北京动力源科技股份有限公司 | A kind of method, system and motor detecting motor internal temperature |
| CN113638903A (en) * | 2021-10-13 | 2021-11-12 | 亿昇(天津)科技有限公司 | Magnetic suspension centrifugal oxygen compressor control system and control method thereof |
-
2018
- 2018-04-28 CN CN201820632592.2U patent/CN209200869U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108923593A (en) * | 2018-04-28 | 2018-11-30 | 北京动力源科技股份有限公司 | A kind of method, system and motor detecting motor internal temperature |
| CN113638903A (en) * | 2021-10-13 | 2021-11-12 | 亿昇(天津)科技有限公司 | Magnetic suspension centrifugal oxygen compressor control system and control method thereof |
| CN113638903B (en) * | 2021-10-13 | 2022-02-11 | 亿昇(天津)科技有限公司 | Magnetic suspension centrifugal oxygen compressor control system and control method thereof |
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