Integrated motor temperature and angle sensor

Abstract

The present invention discloses an integrated motor temperature and angle sensor, comprising: a housing, an angle sensor, a temperature sensor, a PCB board and a connecting harness, a through hole is provided on the housing, and a first mounting portion and a second mounting portion are provided on the housing, the first mounting portion and the second mounting portion are arranged at intervals, and the second mounting portion is located outside the first mounting portion, a gap capable of accommodating a magnetic ring of a motor rotor is formed between the first mounting portion and the second mounting portion, the angle sensor and the PCB board are both arranged on the first mounting portion, and the angle sensor is connected to the PCB board, the temperature sensor is arranged on the second mounting portion, and the connecting harness is respectively connected to the PCB board and the temperature sensor. The above-mentioned integrated motor temperature and angle sensor has high detection accuracy, is conducive to reducing the overall volume of the motor, and saves the beneficial effect of the installation space occupied by the motor.

Description

Technical Field

[0001] The present invention relates to the field of motors, and in particular to an integrated motor temperature and angle sensor. Background Art

[0002] Generally, the motor is provided with an angle sensor and a temperature sensor. The angle sensor is used to detect the motor rotor speed to determine the motor speed, and the temperature sensor is used to detect the temperature of the stator phase line to monitor the temperature inside the motor body in real time to prevent overheating and burning. However, the traditional temperature sensor is installed on the inner side of the magnetic ring, and the detection coil temperature is blocked by the magnetic ring, resulting in low detection accuracy. In addition, the traditional temperature sensor and angle sensor are directly connected to the inverter through the connection terminals, and the inverter must be assembled with the motor body, which limits the installation position of the motor body and the inverter, and places high requirements on the installation space. After assembly, the overall volume of the motor is large and occupies a large installation space. Summary of the invention

[0003] The purpose of the present invention is to provide an integrated motor temperature and angle sensor to overcome the technical problems of low temperature detection accuracy and large installation space occupied by traditional motors.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] An integrated motor temperature and angle sensor comprises: a shell, an angle sensor, a temperature sensor, a PCB board and a connecting harness, wherein a through hole is opened on the shell, and a first mounting portion and a second mounting portion are arranged on the shell, the first mounting portion and the second mounting portion are arranged at intervals, and the second mounting portion is located outside the first mounting portion, and a gap capable of accommodating a magnetic ring of a motor rotor is formed between the first mounting portion and the second mounting portion, the angle sensor and the PCB board are both arranged on the first mounting portion, and the angle sensor is connected to the PCB board, the temperature sensor is arranged on the second mounting portion, and the connecting harness is respectively connected to the PCB board and the temperature sensor.

[0006] In one of the embodiments, the connecting wiring harness includes a connector plastic shell and multiple wiring harnesses, one ends of the multiple wiring harnesses are respectively connected to the corresponding PCB boards or the temperature sensors, and the other ends of the multiple wiring harnesses are respectively provided with wiring harness terminals, and the wiring harness terminals are arranged in the connector plastic shell.

[0007] In one of the embodiments, the connecting wire harness further comprises a wire harness sheath, and the wire harness sheath is sleeved on the outside of the plurality of wire harnesses.

[0008] In one of the embodiments, the connecting harness further includes a flexible gasket, and the flexible gasket is arranged at the bottom of the connector plastic shell.

[0009] In one of the embodiments, the connector plastic shell is fixed to the end cover of the motor by snap-fitting.

[0010] In one of the embodiments, there is an adjustable gap between the connector plastic shell and the buckle.

[0011] In one of the embodiments, the integrated motor temperature and angle sensor further includes a thrust plate, the thrust plate is sleeved on the outer side of the shell, and a mounting hole is formed on the thrust plate.

[0012] In one embodiment, the mounting hole is a waist-shaped hole.

[0013] In one of the embodiments, the integrated motor temperature and angle sensor further comprises a fastener, and the fastener passes through the mounting hole to fix the thrust plate to the cover of the motor.

[0014] In one of the embodiments, a resin layer is disposed on the upper surface of the PCB board.

[0015] In the above-mentioned integrated motor temperature and angle sensor, a first mounting portion for mounting an angle sensor and a second mounting portion for mounting a temperature sensor are provided on the housing, the first mounting portion and the second mounting portion are spaced apart, and the second mounting portion is located outside the first mounting portion, and a gap capable of accommodating the magnetic ring of the motor rotor is formed between the first mounting portion and the second mounting portion. When the integrated motor temperature and angle sensor is assembled with the motor, the gap between the first mounting portion and the second mounting portion is aligned with the magnetic ring of the motor rotor, and then the housing is sleeved on the outside of the motor shaft through the through hole to realize the installation of the integrated motor temperature and angle sensor with the motor. After the integrated motor temperature and angle sensor is installed, the angle sensor is located inside the magnetic ring, and the temperature sensor is located outside the magnetic ring close to the stator coil. The temperature sensor detects the temperature of the stator coil without being blocked, and the detection accuracy is high. In addition, in the above-mentioned integrated motor temperature and angle sensor, the angle sensor and the temperature sensor are respectively connected to the motor inverter through a connecting harness. The connecting harness can conveniently adjust the installation position, and the inverter can be installed at any position around the motor body. The inverter and the motor body can be installed separately, thereby making full use of the limited installation space, helping to reduce the overall volume of the motor and saving the installation space occupied by the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the structure of an integrated motor temperature and angle sensor in one embodiment;

[0017] Figure 2 is an exploded view of the structure of an integrated motor temperature and angle sensor in one embodiment;

[0018] Figure 3 is a schematic diagram of the installation structure of an integrated motor temperature and angle sensor in an embodiment;

[0019] Figure 4 It is a cross-sectional view of the installation structure of the integrated motor temperature and angle sensor in one direction;

[0020] Figure 5 This is a cross-sectional view of the mounting structure of the integrated motor temperature and angle sensor in another direction.

[0021] Description of reference numerals:

[0022] 10-housing, 11-through hole, 12-first mounting part, 13-second mounting part, 20-angle sensor, 30-temperature sensor, 40-PCB board, 51-connector plastic shell, 52-wiring harness, 53-wiring harness sheath, 54-flexible gasket, 60-resin layer, 70-end cover of motor, 71-snap, 80-thrust plate, 81-mounting hole, magnetic ring 90. DETAILED DESCRIPTION

[0023] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0024] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] Please also see Figures 1 to 5 In one embodiment, the integrated motor temperature and angle sensor includes a housing 10, an angle sensor 20, a temperature sensor 30, a PCB board 40 and a connecting harness. The housing 10 is provided with a through hole 11, and the housing 10 is provided with a first mounting portion 12 and a second mounting portion 13. The first mounting portion 12 and the second mounting portion 13 are arranged at intervals, and the second mounting portion 13 is located outside the first mounting portion 12. A gap capable of accommodating a magnetic ring 90 of a motor rotor is formed between the first mounting portion 12 and the second mounting portion 13. The angle sensor 20 and the PCB board 40 are both arranged on the first mounting portion 12, and the angle sensor 20 is connected to the PCB board 40. The temperature sensor 30 is arranged on the second mounting portion 13, and the connecting harness 52 is respectively connected to the PCB board 40 and the temperature sensor 30.

[0026] In the above-mentioned integrated motor temperature and angle sensor, a first mounting portion 12 for mounting an angle sensor 20 and a second mounting portion 13 for mounting a temperature sensor are provided on the housing 10. The first mounting portion 12 and the second mounting portion 13 are arranged at intervals, and the second mounting portion 13 is located outside the first mounting portion 12. A gap capable of accommodating the magnetic ring 90 of the motor rotor is formed between the first mounting portion 12 and the second mounting portion 13. When the integrated motor temperature and angle sensor is assembled with the motor, the gap between the first mounting portion 12 and the second mounting portion 13 is aligned with the magnetic ring 90 of the motor rotor, and then the housing 10 is sleeved on the outside of the motor shaft through the through hole 11 to realize the installation of the integrated motor temperature and angle sensor with the motor. After the integrated motor temperature and angle sensor is installed, the angle sensor 20 is located inside the magnetic ring 90, and the temperature sensor 30 is located outside the magnetic ring 90 close to the stator coil. The temperature sensor 30 detects the temperature of the stator coil without being blocked, and the detection accuracy is high. In addition, in the above-mentioned integrated motor temperature and angle sensor, the angle sensor 20 and the temperature sensor 30 are respectively connected to the motor inverter through connecting harnesses. The connecting harnesses can conveniently adjust the installation position, and the inverter can be installed at any position around the motor body, thereby making full use of the limited installation space, helping to reduce the overall volume of the motor and saving the installation space occupied by the motor.

[0027] In one embodiment, the connection harness includes a connector shell 51 and a plurality of harnesses 52, one end of each of the plurality of harnesses 52 is connected to the corresponding PCB board 40 or the temperature sensor 30, and the other end of each of the plurality of harnesses 52 is provided with a harness terminal, which is provided in the connector shell 51. Specifically, the angle sensor 20 is connected to the PCB board 40, the PCB board 40 is connected to the corresponding harness 52, the angle sensor 20 is connected to the inverter circuit through the PCB board 40 and the corresponding harness 52 in turn, the temperature sensor 30 is directly connected to the inverter circuit through the corresponding harness 52, each harness 52 is provided with a harness terminal and connected to the corresponding connection terminal on the inverter through the harness terminal, the harness terminal is provided in the connector shell 51, and the connector shell 51 is provided on the cover of the motor, which can ensure that the harness terminal is installed stably and reliably, and can also provide protection for the harness terminal. Further, in one embodiment, a resin layer 60 is provided on the upper surface of the PCB board 40, and the resin layer 60 can achieve the fixation and insulation of the PCB board 40.

[0028] In one embodiment, the connecting wire harness also includes a wire harness sheath 53, which is sleeved on the outside of the multiple wire harnesses 52. The wire harness sheath 53 can protect the wire harness 52 and prevent the wire harness 52 from being entangled due to the disorderly distribution of the multiple wire harnesses 52, which is beneficial to improving safety.

[0029] In one embodiment, the connection harness further includes a flexible gasket 54, which is disposed at the bottom of the connector plastic shell 51. Specifically, the flexible gasket 54 may be, but is not limited to, made of rubber, and when the connection harness is connected to the connection terminal on the inverter, the flexible gasket 54 can be deformed to adjust the position of the connector plastic shell 51, so that the connection terminal on the inverter is quickly aligned with the socket on the connector plastic shell 51, thereby ensuring that the connection terminal on the inverter can be smoothly inserted into the harness terminal.

[0030] In one embodiment, the connector plastic shell 51 is fixed to the end cover 70 of the motor by a buckle 71. Specifically, the end cover 70 of the motor is provided with a buckle 71. The buckle 71 can ensure that the connector plastic shell 51 is stably and reliably connected to the motor end cover and that the assembly and disassembly are convenient. Further, in one embodiment, there is an adjustment gap between the connector plastic shell 51 and the buckle 71. When the flexible gasket 54 is deformed, the connector plastic shell 51 can be slightly offset within the adjustment gap with the flexible gasket 54 to achieve position adjustment, thereby ensuring that the connection terminal on the inverter can be smoothly inserted into the wiring harness terminal.

[0031] In one embodiment, the integrated motor temperature and angle sensor further includes a thrust plate 80, which is sleeved on the outer side of the housing 10, and a mounting hole 81 is provided on the thrust plate 80. Specifically, the integrated motor temperature and angle sensor further includes a fastener, which passes through the mounting hole 81 to fix the thrust plate 80 on the cover of the motor. After the housing 10 is sleeved with the motor shaft, it is fixedly connected to the cover of the motor through the thrust plate 80, ensuring that the integrated motor temperature and angle sensor is stably and reliably installed. Furthermore, the mounting hole 81 is a waist-shaped hole, and the waist-shaped hole of the mounting hole 81 can conveniently adjust the mounting angle. When the mounting position of the connector plastic shell 51 changes, the thrust plate 80 can be rotated to match the mounting position of the housing 10 with the mounting position of the connector plastic shell 51. The mounting angle of the housing 10 is flexibly set, and the mounting position adjustment range is large and convenient to adjust, which helps to improve the installation adaptability and can further expand the application range of the integrated motor temperature and angle sensor.

[0032] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0033] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An integrated motor temperature and angle sensor, characterized in that: include: A shell (10), an angle sensor (20), a temperature sensor (30), a PCB board (40) and a connecting harness, wherein the shell (10) is provided with a through hole (11), and the shell (10) is provided with a first mounting portion (12) and a second mounting portion (13), the first mounting portion (12) and the second mounting portion (13) are arranged at intervals, and the second mounting portion (13) is located outside the first mounting portion (12), and a gap capable of accommodating a magnetic ring (90) of a motor rotor is formed between the first mounting portion (12) and the second mounting portion (13), the angle sensor (20) and the PCB board (40) are both arranged on the first mounting portion (12), and the angle sensor (20) is connected to the PCB board (40), the temperature sensor (30) is arranged on the second mounting portion (13), and the connecting harness is respectively connected to the PCB board (40) and the temperature sensor (30).

2. The integrated motor temperature and angle sensor according to claim 1, characterized in that: The connecting wire harness comprises a connector plastic shell (51) and a plurality of wire harnesses (52), one end of each of the plurality of wire harnesses (52) being respectively connected to the corresponding PCB board (40) or the temperature sensor (30), and the other end of each of the plurality of wire harnesses (52) being respectively provided with a wire harness terminal, and the wire harness terminal being arranged in the connector plastic shell (51).

3. The integrated motor temperature and angle sensor according to claim 2, characterized in that: The connecting wire harness further comprises a wire harness sheath (53), and the wire harness sheath (53) is sleeved on the outside of the plurality of wire harnesses (52).

4. The integrated motor temperature and angle sensor according to claim 2, characterized in that: The connecting wire harness further comprises a flexible gasket (54), and the flexible gasket (54) is arranged at the bottom of the connector plastic shell (51).

5. The integrated motor temperature and angle sensor according to claim 2, characterized in that: The connector plastic shell (51) is fixed on the end cover (70) of the motor via a buckle (71).

6. The integrated motor temperature and angle sensor according to claim 5, characterized in that: An adjustable gap is provided between the connector plastic shell (51) and the buckle (71).

7. The integrated motor temperature and angle sensor according to any one of claims 1 to 6, characterized in that: The integrated motor temperature and angle sensor further comprises a thrust plate (80), wherein the thrust plate (80) is sleeved on the outside of the housing (10), and a mounting hole (81) is provided on the thrust plate (80).

8. The integrated motor temperature and angle sensor according to claim 7, characterized in that: The mounting hole (81) is a waist-shaped hole.

9. The integrated motor temperature and angle sensor according to claim 7, characterized in that: The integrated motor temperature and angle sensor also includes a fastener, which passes through the mounting hole (81) to fix the thrust plate (80) on the cover of the motor.

10. The integrated motor temperature and angle sensor according to any one of claims 1 to 6, wherein a resin layer (60) is provided on the upper surface of the PCB board (40).

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