CN112260489B - Motor shaft assembly, motor assembly and vehicle - Google Patents
Motor shaft assembly, motor assembly and vehicle Download PDFInfo
- Publication number
- CN112260489B CN112260489B CN202011533157.2A CN202011533157A CN112260489B CN 112260489 B CN112260489 B CN 112260489B CN 202011533157 A CN202011533157 A CN 202011533157A CN 112260489 B CN112260489 B CN 112260489B
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- motor shaft
- coil
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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
- H02K11/24—Devices for sensing torque, or actuated thereby
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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
- H02K11/01—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for shielding from electromagnetic fields, i.e. structural association with shields
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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
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/35—Devices for recording or transmitting machine parameters, e.g. memory chips or radio transmitters for diagnosis
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/006—Structural association of a motor or generator with the drive train of a motor vehicle
Abstract
The invention discloses a motor shaft component, a motor assembly and a vehicle, wherein the motor shaft component comprises: the motor comprises a motor shaft, a detection part and a signal processing part, wherein the detection part is arranged on the outer surface of the motor shaft and is suitable for detecting the real-time torque of the motor shaft; the signal processing part is fixed with the motor shaft and is connected with the detection part to acquire real-time torque of the motor shaft. According to the motor shaft assembly disclosed by the invention, the detection part is directly arranged on the outer surface of the motor shaft, so that the detection part can truly and accurately detect the real-time torque of the motor shaft, and the authenticity of detecting the torque of the motor shaft is improved.
Description
Technical Field
The invention relates to the field of vehicles, in particular to a motor shaft component, a motor assembly and a vehicle.
Background
In the related art, the output torque of the motor on the vehicle is obtained through a calculation model of a motor torque controller and belongs to a calculation value, but in the actual vehicle test process, the calculated motor output torque is not the actual output torque due to the influence of the influence factors such as the rigidity of a vehicle transmission system, the clearance of a transmission system, tires and the like, and the frequency is low, so that the fluctuation and the impact of the influence factors on the motor output torque are difficult to reflect.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. To this end, an object of the present invention is to propose a motor shaft assembly. The detection part is directly arranged on the outer surface of the motor shaft, so that the detection part can truly and accurately detect the real-time torque of the motor shaft, and the authenticity of detecting the torque of the motor shaft is improved.
The invention also provides a motor assembly with the motor shaft.
The invention also provides a vehicle with the motor assembly.
The motor shaft assembly according to the present invention comprises: the motor comprises a motor shaft, a detection part and a signal processing part, wherein the detection part is arranged on the outer surface of the motor shaft and is suitable for detecting the real-time torque of the motor shaft; the signal processing part is fixed with the motor shaft and is connected with the detection part to acquire real-time torque of the motor shaft.
According to the motor shaft assembly, the detection part is directly arranged on the outer surface of the motor shaft, so that the detection part can measure the truest working condition of the motor shaft, the detection part can detect the torque on the motor shaft in real time, the detection part can truly and accurately reflect the torque of the motor shaft, meanwhile, the detection part is electrically connected with the signal processing part on the motor shaft, the signal processing part can obtain the real-time torque of the motor shaft detected by the detection part, and the signal processing part is fed back to the upper computer, so that the upper computer can truly and accurately output the torque of the motor, and the torque of the motor shaft can be detected from the state of the whole vehicle.
According to one embodiment of the present invention, the motor shaft assembly further comprises: a connection line connecting the detection unit and the signal processing unit; a wire harness hole is formed in the motor shaft, and at least part of the connecting wire is contained in the wire harness hole.
According to one embodiment of the invention, the outer surface of the connection line is provided with an electromagnetic shielding layer.
According to one embodiment of the invention, the electromagnetic shielding layer is constructed as a molybdenum metal layer.
According to an embodiment of the present invention, the signal processing section includes: the signal transmission part is connected with the detection part and is suitable for acquiring the real-time torque of the motor shaft and sending the real-time torque to an upper computer; the power supply part is electrically connected with the detection part and the signal transmission part respectively.
According to one embodiment of the present invention, the motor shaft assembly further comprises: the signal receiving part is arranged at intervals with the signal processing part and is in wireless communication connection with the signal processing part so as to receive the real-time torque of the motor shaft and send the real-time torque of the motor shaft to the upper computer.
According to an embodiment of the present invention, the signal processing section further includes: the processing part shell is arranged at one end of the motor shaft, and an accommodating cavity suitable for accommodating the signal transmission part and the power supply part is arranged in the processing part shell.
According to an embodiment of the present invention, the signal receiving section includes: the receiving part shell is suitable for being fixed with the motor stator, the receiving part shell defines an accommodating groove suitable for accommodating the processing part shell, and at least part of the processing part shell is arranged in the accommodating groove and is arranged at intervals with the receiving part shell.
According to one embodiment of the present invention, a first coil surrounding the treatment section housing is provided in the reception section housing; and a second coil which is just opposite to the first coil is arranged on the periphery of the processing part shell.
According to one embodiment of the present invention, the receiving part housing includes: an inner housing and an outer housing, the inner housing being configured as a cylindrical structure and provided at an outer periphery thereof with a first coil groove adapted to accommodate the first coil; the outer housing is constructed in a cylindrical structure and is sleeved on the periphery of the inner housing to seal the first coil groove.
According to an embodiment of the invention, the outer periphery of the processing part housing is provided with a second coil groove adapted to accommodate the second coil.
According to one embodiment of the present invention, the power supply is electrically connected with the second coil and adapted to convert an induced current generated in the second coil into a direct current.
According to an embodiment of the present invention, the signal processing section further includes: the connecting bracket is provided with a first mounting position suitable for mounting the power supply part and a second mounting position suitable for mounting the signal transmission part.
According to one embodiment of the invention, the connecting bracket is configured as an insulating element.
According to one embodiment of the present invention, the motor shaft assembly further comprises: an end cap fixed with the treatment portion housing and closing an open opening of the accommodation chamber.
According to one embodiment of the invention, the end cover is provided with heat dissipation holes penetrating in the thickness direction of the end cover.
The motor assembly according to the invention is briefly described below.
According to the motor assembly provided with the motor shaft assembly of the embodiment, the motor shaft assembly provided with the motor shaft assembly of the embodiment can truly and accurately detect the real-time torque of the motor shaft, so that the motor assembly can be controlled according to the implementation torque of the motor shaft, and the control precision of the motor assembly is improved.
The vehicle according to the present invention is briefly described below.
According to the motor assembly provided by the embodiment of the invention, the vehicle can obtain the most real torque of the motor shaft in real time, and the motor assembly is controlled according to the obtained real torque, so that the driving stability and safety of the vehicle are ensured.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a cross-sectional view of a motor shaft assembly according to the present invention;
FIG. 2 is an enlarged partial view according to circle A in FIG. 1;
FIG. 3 is an exploded view according to circle A in FIG. 1;
FIG. 4 is an exploded view of a motor shaft assembly according to the present invention;
fig. 5 is a schematic view of an electric motor assembly according to the present invention.
Reference numerals:
the shaft assembly 100 of the motor is provided with,
a motor shaft 110, a harness hole 111, a detecting part 120, a signal processing part 130, a signal transmitting member 131,
a power supply member 132, a processing portion case 133, a housing chamber 134, a second coil groove 135,
the connection lines 140 are connected to each other,
a signal receiving part 150, a receiving part case 151, an inner case 151a, an outer case 151b, a first coil groove 151c,
the accommodating groove 152 is formed in the upper surface of the housing,
the connecting bracket 160, the end cover 170 and the heat dissipation hole 171.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
A motor shaft assembly 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 5.
The motor shaft assembly 100 according to the present invention includes a motor shaft 110, a detecting part 120 and a signal processing part 130, the detecting part 120 being disposed on an outer surface of the motor shaft 110 to be suitable for detecting a real-time torque of the motor shaft 110; the signal processing part 130 is fixed to the motor shaft 110 and connected to the detecting part 120 to obtain a real-time torque of the motor shaft 110.
In the related art, the output torque of the motor on the vehicle is obtained through a calculation model of a motor torque controller and belongs to a calculation value, but in the actual vehicle test process, the calculated motor output torque is not the actual output torque due to the influence of the influence factors such as the rigidity of a vehicle transmission system, the clearance of a transmission system, tires and the like, and the frequency is low, so that the fluctuation and the impact of the influence factors on the motor output torque are difficult to reflect.
According to the motor shaft assembly 100 of the present invention, the detecting part 120 is directly disposed on the outer surface of the motor shaft 110, so that the detecting part 120 can measure the truest working condition of the motor shaft 110, and the detecting part 120 can detect the torque on the motor shaft 110 in real time, so that the detecting part 120 can truly and accurately reflect the torque of the motor shaft 110, and meanwhile, the detecting part 120 is electrically connected to the signal processing part 130 on the motor shaft 110, so that the signal processing part 130 can obtain the real-time torque of the motor shaft 110 detected by the detecting part 120, and the signal processing part 130 is fed back to the upper computer, so that the upper computer can truly and accurately obtain the output torque of the motor, and the torque of the motor shaft 110 can be detected from the state of the whole vehicle.
According to one embodiment of the present invention, the motor shaft assembly 100 further includes: a connection line 140, the connection line 140 connecting the detection unit 120 and the signal processing unit 130; the motor shaft 110 is provided with a harness hole 111 therein, and at least a part of the connection wire 140 is accommodated in the harness hole 111.
The connection wire 140 is used to electrically connect the signal processing part 130 and the detecting part 120 so that the detection information of the detecting part 120 can be transmitted to the signal processing part 130, wherein the connection wire 140 is disposed in the wire harness hole 111 of the motor shaft 110 to reduce the rotation radius of the connection wire 140 rotating with the motor shaft 110, thereby reducing the probability that the connection wire 140 is torn off during the rotation.
Further, the connection line 140 is disposed in the wire harness hole 111 of the motor shaft 110, so that the connection between the connection line 140 and the outside can be effectively isolated, the interference of the outside electromagnetism to the connection line 140 is avoided, the communication quality between the detection part 120 and the signal processing part 130 is improved, and the stability in the signal transmission process is improved.
According to one embodiment of the present invention, the outer surface of the connection wire 140 is provided with an electromagnetic shielding layer. The electromagnetic shielding layer is disposed on the outer surface of the connection line 140, so that the anti-electromagnetic interference capability of the connection line 140 is increased, and the connection line 140 can effectively shield external electromagnetic interference.
Furthermore, the shielding layer can be constructed as a molybdenum metal layer, and the molybdenum metal has strong anti-electromagnetic interference capability, so that the anti-electromagnetic interference capability of the connecting wire 140 is further improved, and the reliability of the signal transmission of the connecting wire 140 is ensured.
According to an embodiment of the present invention, the signal processing section 130 includes: the signal transmission part 131 and the power supply part 132, the signal transmission part 131 is connected with the detection part 120 and is suitable for acquiring the real-time torque of the motor shaft 110 and sending the real-time torque to an upper computer; the power supply member 132 is electrically connected to the detection section 120 and the signal transmission member 131, respectively. The power supply member 132 respectively supplies power to the signal transmission member 131 and the detection part 120 to ensure normal operation of the detection part 120 and the signal transmission member 131, wherein the signal transmission member 131 is connected with the detection part 120, so that the detection part 120 can transmit the real-time torque of the motor shaft 110 to the signal transmission member 131, and the signal transmission member 131 transmits the real-time torque of the motor shaft 110 to an upper computer, so that the upper computer can obtain real and accurate motor output torque.
According to one implementation of the present invention, the motor shaft assembly 100 further includes: the signal receiving part 150 is arranged at an interval with the signal processing part 130, and the signal receiving part 150 is in wireless communication connection with the signal processing part 130 to receive the real-time torque of the motor shaft 110 and send the real-time torque of the motor shaft 110 to the upper computer. The signal receiving part 150 is connected with the signal processing part 130 through wireless communication, so that the signal receiving part 150 can receive the signal transmitted by the signal processing part 130 and send the real-time torque of the motor shaft 110 to an upper computer; the signal receiving unit 150 and the signal processing unit 130 can communicate with each other in a radio frequency manner, so as to reduce the wire harness in the motor shaft assembly 100 and reduce the difficulty in assembling the motor shaft 110.
Specifically, the signal transmission member 131 may perform wireless rf communication with the first coil of the signal receiving part 150, so that the real-time torque of the motor shaft 110 can be transmitted to the first coil, and the real-time torque of the motor shaft 110 is transmitted to the upper computer by the first coil, or an antenna is disposed on the signal receiving part 150, so that the signal transmission member 131 performs wireless rf communication with the antenna, and the antenna transmits the real-time torque of the motor shaft 110 to the upper computer.
According to an embodiment of the present invention, the signal processing section 130 further includes: a processing part housing 133, the processing part housing 133 being disposed at one end of the motor shaft 110 and the processing part housing 133 having a receiving cavity 134 therein adapted to receive the signal transmission member 131 and the power supply member 132.
It can be understood that the accommodating cavity 134 is provided in the processing portion housing 133, on one hand, the accommodating cavity 134 is enabled to accommodate the signal transmission member 131 and the power supply member 132, the size of the motor shaft assembly 100 in the axial direction is reduced, and the volume of the motor shaft 110 is reduced; on the other hand, the manufacturing material of the processing part housing 133 can be reduced, the mass and the cost of the motor shaft assembly 100 are greatly reduced, and the light-weight design requirement of the motor shaft assembly 100 is met.
According to an embodiment of the present invention, the signal receiving section 150 includes: a receiving part housing 151, the receiving part housing 151 being adapted to be fixed with the motor stator, the receiving part housing 151 defining an accommodating groove 152 adapted to accommodate the processing part housing 133, at least a portion of the processing part housing 133 being disposed in the accommodating groove and spaced apart from the receiving part housing 151.
As shown in fig. 5, the receiving part housing 151 is fixed to the stator of the motor such that the receiving part housing 151 maintains a fixed state when the motor shaft 110 rotates, while the receiving part housing 151 defines a receiving groove 152, and the receiving groove 152 is adapted to receive at least a portion of the processing part housing 133 to further reduce the size of the motor shaft assembly 100 in the axial direction, thereby reducing the size of the motor shaft 110.
Further, the receiving part housing 151 is spaced apart from the processing part housing 133 to avoid interference of the receiving part housing 151 with rotation of the processing part housing 133.
According to one embodiment of the present invention, a first coil surrounding the treatment part housing 133 is provided inside the reception part housing 151; the second coil facing the first coil is provided on the outer periphery of the processing unit case 133.
Specifically, as shown in fig. 4, the receiving part housing 151 includes: an inner case 151a and an outer case 151b, the inner case 151a being configured as a cylindrical structure and having a first coil groove 151c adapted to receive a first coil provided at an outer circumference thereof, the outer case 151b being configured as a cylindrical structure and disposed at an outer circumference of the inner case 151a to close the first coil groove 151c, the outer case 151b and the inner case 151a cooperating to define the first coil within the first coil groove 151c, so that the first coil arrangement is regular and a regular magnetic field can be formed when the first coil is energized.
Further, the first coil and the second coil are disposed opposite to each other, so that the second coil is located in the magnetic field generated by the first coil, the second coil is disposed at the periphery of the processing portion housing 133, the second coil can move in the magnetic field along with the rotation of the processing portion housing 133, the second coil moves in the magnetic field to generate an induced current, wherein the second coil is electrically connected to the power supply 132, the induced current in the second coil can be transmitted to the power supply 132, and the power supply 132 is adapted to convert the induced current generated in the second coil into a direct current, so that the induced current can supply power to the detection portion 120 and the signal receiving portion 150.
According to an embodiment of the present invention, the outer circumference of the processing portion casing 133 is provided with a second coil groove 135 adapted to accommodate the second coil, and the second coil is accommodated in the second coil groove 135, so as to prevent the second coil from being scattered during rotation, and to ensure that a stable induced current can be generated in the second coil. The second coil groove 135 is disposed opposite to the first coil groove 151c, so that the second coil can be completely located in the magnetic field generated by the first coil.
According to an embodiment of the present invention, the signal processing section 130 further includes: the connecting bracket 160 is provided with a first mounting position suitable for mounting the power supply member 132 and a second mounting position suitable for mounting the signal transmission member 131. The connecting bracket 160 is used for fixing the signal transmission part 131 and the power supply part 132 so as to ensure the stability of the signal transmission part 131 and the power supply part 132 in the process of rotating along with the motor shaft 110, and the connecting bracket 160 is provided with the first mounting position and the second mounting position, so that the reliability of fixing the signal transmission part 131 and the power supply part 132 with the connecting bracket 160 is improved, and meanwhile, the signal transmission part 131 and the power supply part 132 are respectively mounted at the first mounting position and the second mounting position, so that the misassembly of the signal transmission part 131 and the power supply part 132 can be effectively avoided.
Specifically, a first mounting groove and a second mounting groove are provided on the connecting bracket 160, the first mounting groove and the second mounting groove are respectively configured as a first mounting position and a second mounting position of the above-described embodiment, the signal transmission member 131 and the power supply member 132 are respectively disposed in the first mounting groove and the second mounting groove, the connecting bracket 160 is fixedly connected with the processing part housing 133, and the connecting bracket 160 can maintain the stability of the connection between the signal transmission member 131 and the power supply member 132 and the processing part housing 133.
According to one embodiment of the present invention, the connection bracket 160 is configured as an insulating member. By configuring the connection bracket 160 as an insulating member to isolate the processing part case 133 from the power supply member 132 and the signal transmission member 131, an induced current generated on the second coil is prevented from being transmitted to the power supply member 132 through the connection bracket 160, thereby avoiding a short circuit of the power supply member 132.
According to one embodiment of the present invention, the motor shaft assembly 100 further includes: and an end cover 170, the end cover 170 being fixed with the treating part housing 133 and closing the open opening of the receiving cavity 134. The open opening is opened towards the installation direction of the treatment part housing 133 so as to facilitate the installation of the treatment part housing 133, and the end cover 170 is arranged at the open opening to close the open opening and is suitable for pressing the connecting bracket 160, so that the matching of the connecting bracket 160 and the treatment part housing 133 is more compact, and the reliability of the structure of the motor shaft assembly 100 is improved.
According to an embodiment of the present invention, the end cap 170 is provided with a heat radiation hole 171 penetrating in a thickness direction of the end cap 170. The heat dissipation hole 171 is suitable for exchanging heat between the heat generated in the power supply member 132 and the wire harness hole 111 of the motor shaft 110 and the atmosphere, so as to achieve the purpose of heat dissipation, improve the heat dissipation rate of the motor shaft assembly 100, and effectively reduce the requirement of the motor shaft assembly 100 on the temperature environment.
The motor assembly 200 according to the present invention is briefly described below.
According to the motor assembly provided with the motor shaft assembly 100 of the embodiment, as the motor shaft assembly 100 of the embodiment is provided on the motor assembly 200 of the invention, the motor shaft assembly 100 can truly and accurately detect the real-time torque of the motor shaft 110, so that the motor assembly 200 can be controlled according to the implementation torque of the motor shaft 110, and the control precision of the motor assembly 200 is improved.
The vehicle according to the present invention is briefly described below.
According to the vehicle provided with the motor assembly 200 of the embodiment, the vehicle provided with the motor assembly 200 of the embodiment can obtain the most real torque of the motor shaft 110 in real time, and control the motor assembly 200 according to the obtained real torque, so that the driving stability and safety of the vehicle are ensured.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.
In the description of the present invention, "a plurality" means two or more.
In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.
In the description of the invention, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (14)
1. A motor shaft assembly, comprising:
a motor shaft;
a detecting part disposed on an outer surface of the motor shaft to detect a real-time torque of the motor shaft;
the signal processing part is fixed with the motor shaft and is connected with the detection part to acquire real-time torque of the motor shaft;
further comprising: the signal receiving part is arranged at intervals with the signal processing part and is in wireless communication connection with the signal processing part so as to receive the real-time torque of the motor shaft and send the real-time torque of the motor shaft to an upper computer; wherein
The signal processing section includes:
the signal transmission piece is connected with the detection part and is used for acquiring the real-time torque of the motor shaft and sending the real-time torque to an upper computer;
the power supply part is electrically connected with the detection part and the signal transmission part respectively;
the signal processing section further includes:
the processing part shell is arranged at one end of the motor shaft, and an accommodating cavity for accommodating the signal transmission part and the power supply part is arranged in the processing part shell;
the signal receiving section includes:
the receiving part shell is fixed with the motor stator, an accommodating groove for accommodating the processing part shell is defined by the receiving part shell, and at least part of the processing part shell is arranged in the accommodating groove and is arranged at intervals with the receiving part shell.
2. The motor shaft assembly of claim 1, further comprising: a connection line connecting the detection unit and the signal processing unit; a wire harness hole is formed in the motor shaft, and at least part of the connecting wire is contained in the wire harness hole.
3. The motor shaft assembly of claim 2, wherein an outer surface of the connecting wire is provided with an electromagnetic shield.
4. The motor shaft assembly of claim 3, wherein the electromagnetic shield is constructed as a molybdenum metal layer.
5. The motor shaft assembly of claim 1, wherein a first coil is disposed within the receiver housing and surrounds the process housing; and a second coil which is just opposite to the first coil is arranged on the periphery of the processing part shell.
6. The motor shaft assembly of claim 5, wherein the receptacle housing comprises:
an inner case configured as a cylindrical structure and provided at an outer periphery thereof with a first coil groove accommodating the first coil;
an outer housing configured as a cylindrical structure and sleeved at an outer periphery of the inner housing to seal the first coil groove.
7. The motor shaft assembly according to claim 5, characterized in that an outer periphery of the processing portion casing is provided with a second coil groove that accommodates the second coil.
8. The motor shaft assembly of claim 5, wherein the power supply is electrically connected to the second coil and converts induced current generated in the second coil into direct current.
9. The motor shaft assembly of claim 1, wherein the signal processing portion further comprises: the connecting bracket is provided with a first mounting position for mounting the power supply part and a second mounting position for mounting the signal transmission part.
10. The motor shaft assembly of claim 9, wherein the connecting bracket is configured as an insulator.
11. The motor shaft assembly of claim 1, further comprising: an end cap fixed with the treatment portion housing and closing an open opening of the accommodation chamber.
12. The motor shaft assembly of claim 11, wherein the end cap has a heat dissipating hole formed therethrough in a thickness direction of the end cap.
13. An electric motor assembly comprising an electric motor shaft assembly as claimed in any one of claims 1 to 12.
14. A vehicle comprising the electric machine assembly of claim 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011533157.2A CN112260489B (en) | 2020-12-23 | 2020-12-23 | Motor shaft assembly, motor assembly and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011533157.2A CN112260489B (en) | 2020-12-23 | 2020-12-23 | Motor shaft assembly, motor assembly and vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112260489A CN112260489A (en) | 2021-01-22 |
| CN112260489B true CN112260489B (en) | 2021-09-03 |
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| CN202011533157.2A Active CN112260489B (en) | 2020-12-23 | 2020-12-23 | Motor shaft assembly, motor assembly and vehicle |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826778B (en) * | 2010-05-25 | 2012-05-23 | 上海应用技术学院 | Electric motor with torque sensor |
| EP2924871A1 (en) * | 2012-11-20 | 2015-09-30 | Kabushiki Kaisha Yaskawa Denki | Motor drive system and motor control device |
| CN203747582U (en) * | 2014-03-28 | 2014-07-30 | 淄博京科电气研究所 | Switch magnetic resistance motor with torque sensor |
| CN104935114B (en) * | 2015-06-09 | 2017-11-21 | 非禾科技（上海）有限公司 | The dynamic balance mechanism of twin shaft under unbalanced load |
| CN205725307U (en) * | 2016-04-05 | 2016-11-23 | 姜铭 | The moment driver element of hollow |
| CN106685116A (en) * | 2017-01-22 | 2017-05-17 | 北京理工大学 | Direct-drive motor device |
| CN106953470B (en) * | 2017-05-10 | 2020-04-10 | 昆山攀登电子科技有限公司 | Electric motor car moment induction measuring formula motor |
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