CN219204308U - Outer rotor motor with temperature monitoring function - Google Patents

Abstract

The utility model provides an outer rotor motor with temperature monitoring, and belongs to the technical field of motors. The external rotor motor bearing solves the technical problems that the temperature monitoring of the existing external rotor motor bearing with the temperature monitoring is inaccurate, the sensor is not fixed firmly, the service life cannot be guaranteed, and the like. The outer rotor motor with the temperature monitoring function is characterized in that a front temperature sensor is arranged on the rear side of a front bearing or on the outer wall of a mounting seat corresponding to the front bearing, and a rear temperature sensor is arranged on the front side of a rear bearing or on the outer wall of the mounting seat corresponding to the rear bearing; when the front temperature sensor and/or the rear temperature sensor are/is positioned in the mounting seat, the front temperature sensor and/or the rear temperature sensor are/is fixed on the corresponding contact piece. According to the utility model, the temperature sensor is arranged on the outer wall of the mounting seat or fixed through the contact piece, so that the temperature sensor is fixed to a position close to the bearing, the temperature of the bearing measured by the temperature sensor is more accurate, and the real-time monitoring of the temperature of the bearing is realized.

Description

Outer rotor motor with temperature monitoring function

Technical Field

The utility model belongs to the technical field of motors, and particularly relates to an outer rotor motor with temperature monitoring.

Background

The outer rotor fan converts electric energy into kinetic energy of gas, is driven fluid machinery and is mainly driven by a motor. The outer rotor fan is widely applied to ventilation of mines, underground engineering and underground power plants; ventilation and induced draft of the boiler; discharging high-temperature corrosive gas in a chemical plant; ventilation of workshop air conditioner and atomic protection equipment, use in medical negative pressure ward, etc.

The motor of the outer rotor fan mainly rotates, one key part needed is a bearing, and the service life of the motor is influenced by the state of the bearing. The motor can generate high temperature and vibration during operation, and particularly, the problem of temperature rise of the motor of the outer rotor fan is more prominent than that of the motor of the inner rotor fan, the temperature is a primary factor influencing the service life of the bearing, the temperature of the bearing is mainly generated by a stator winding and transmitted to the bearing, and the temperature of the bearing is also generated by the operation of the bearing. If the temperature of the bearing can be monitored in real time, early warning and adjustment can be made in real time, so that faults can be prevented in time, the bearing can be operated under stable and reasonable working conditions, the bearing can be protected from failure to a great extent, and a motor and an outer rotor fan are protected to a great extent.

The motor of the existing external rotor fan generally comprises a controller component, a base, a rotor component and a stator component, wherein the controller component is arranged on one side of the base, the rotor component and the stator component are arranged on the other side of the base, a cylindrical mounting seat is arranged on the other side of the base, the stator component is fixedly connected to the outer wall of the mounting seat, the rotor component is sleeved on the outer side of the stator component, a rotating shaft is arranged on the inner side of the mounting seat, the rotor component is fixedly connected with the outer end part of the rotating shaft, and the rotating shaft is rotatably connected with the mounting seat through a front bearing and a rear bearing; wherein the front bearing and the rear bearing are both arranged in the cylindrical mounting seat.

Because the inner rings of the front bearing and the rear bearing are always in a rotating state when the motor works, if the sensor is directly fixed on the bearing, the service lives of the sensor and the bearing are influenced, the problems of easy falling, uncontrollable arrangement and glue coating exist, and the service life cannot be ensured; how to effectively fix the sensor to a proper position to enable the measured bearing temperature to be accurate, and the fixation is firm and reliable without affecting the performance and the service life of a motor product becomes a technical problem to be solved urgently.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide an external rotor motor with temperature monitoring.

The aim of the utility model can be achieved by the following technical scheme:

the utility model provides a take temperature monitoring's external rotor motor, includes base, rotor subassembly and stator module, the front side of base is equipped with the mount pad of tube-shape, stator module installs on the lateral wall of mount pad, rotatable setting pivot in the mount pad, the pivot links to each other with the mount pad through the front bearing and the rear bearing that the interval set up, the front end of pivot stretches out the mount pad and with rotor module fixed connection, its characterized in that: a front temperature sensor is arranged on the rear side of the front bearing or on the outer wall of the mounting seat corresponding to the front bearing, and a rear temperature sensor is arranged on the front side of the rear bearing or on the outer wall of the mounting seat corresponding to the rear bearing; when the front temperature sensor and/or the rear temperature sensor are/is located in the mounting seat, the front temperature sensor and/or the rear temperature sensor are/is fixed on corresponding contact pieces, and the contact pieces are in contact with corresponding front bearings and/or rear bearings.

Above-mentioned external rotor motor is through installing temperature sensor (preceding temperature sensor or back temperature sensor) on the outer wall of mount pad or through the contact fixed connection who contacts with bearing (preceding bearing or back bearing) realize temperature sensor's fixed to the effectual position that is close to the bearing with temperature sensor, make temperature sensor's measured bearing temperature more accurate, thereby realize the real-time supervision to bearing temperature.

In the outer rotor motor with temperature monitoring, at least one through hole penetrating the base back and forth is formed in the base, and a threading hole is formed in the rear end of the mounting seat.

The through hole is designed to enable leads connected with the front temperature sensor and the rear temperature sensor to pass through the base through the through hole and be electrically connected with corresponding interfaces on the controller component; when the front temperature sensor and/or the rear temperature sensor are/is arranged in the mounting seat, the corresponding lead can enter the mounting seat from the threading hole; above-mentioned base and mount pad all keep motionless when external rotor motor normal operating, consequently, the wire can not produce the influence to the normal rotation of rotor in the external rotor motor through-hole and through wires hole, is favorable to improving the stability of this external rotor motor during operation.

In the outer rotor motor with temperature monitoring, the front temperature sensor and the rear temperature sensor are both arranged in the mounting seat, the contact piece comprises a front gasket and a rear gasket, the front side surface of the front gasket is clung to the rear side surface of the front bearing, the front temperature sensor is fixedly connected to the rear side surface of the front gasket, the rear gasket is clung to the front side surface or the rear side surface of the rear bearing, and the rear temperature sensor is fixedly connected to the side surface of the rear gasket far away from the rear temperature sensor; the front gasket and the rear gasket are made of materials with good heat conductivity.

In the scheme, the front temperature sensor is contacted with the front bearing through the front gasket, the rear temperature sensor is contacted with the rear bearing through the rear gasket, the front temperature sensor and the rear temperature sensor can be more close to the front bearing and the rear bearing by the design, the error between the temperature data measured by the scheme and the temperature data directly attached to the bearing by the sensor is within 1 ℃, and the measurement result is more accurate; and after adopting preceding gasket and back gasket, preceding temperature sensor and back temperature sensor all can be fixed in preceding gasket and back gasket that correspond through the screw, connect more firmly, be difficult for dropping in the use, do not influence motor product performance and life.

In the outer rotor motor with temperature monitoring, the front temperature sensor is arranged in the mounting seat, the rear temperature sensor is arranged on the outer side of the mounting seat, the contact piece comprises a front gasket, the front side surface of the front gasket is clung to the rear side surface of the front bearing, the front temperature sensor is fixedly connected to the rear side surface of the front gasket, and the rear temperature sensor is fixedly connected to the outer wall of the mounting seat corresponding to the rear bearing or the stator component corresponding to the rear bearing and clung to the outer wall of the mounting seat; the front gasket is made of a material with good thermal conductivity.

In the scheme, the rear temperature sensor is arranged on the outer side of the mounting seat, the error between temperature data measured by the rear temperature sensor and temperature data directly attached to the bearing by the sensor in the mounting mode is within 2 ℃, the measurement result is accurate, the front temperature sensor measures through the front gasket, the error between the measured temperature data and temperature data directly attached to the bearing by the sensor is within 1 ℃, the measurement result is more accurate, and the front temperature sensor can be fixed on the front gasket through screws; the two modes can ensure that the connection is firmer, the motor is not easy to fall off in the use process, and the performance and the service life of the motor product are not affected.

In the outer rotor motor with temperature monitoring, the front temperature sensor is arranged at the outer side of the mounting seat, the rear temperature sensor is arranged in the mounting seat, the front temperature sensor is fixedly connected to the outer wall of the mounting seat corresponding to the front bearing or fixedly connected to the stator component corresponding to the front bearing and clung to the outer wall of the mounting seat, the contact piece comprises a rear gasket clung to the front side surface or the rear side surface of the rear bearing, and the rear temperature sensor is fixedly connected to the side surface of the rear gasket far away from the rear temperature sensor; the rear gasket is made of a material with good thermal conductivity.

In the scheme, the front temperature sensor is arranged on the outer side of the mounting seat, the error between temperature data measured by the front temperature sensor and temperature data directly attached to the bearing by the sensor in the mounting mode is within 2 ℃, the measurement result is accurate, the rear temperature sensor measures through the rear gasket, the error between the measured temperature data and temperature data directly attached to the bearing by the sensor is within 1 ℃, the measurement result is more accurate, and the rear temperature sensor can be fixed on the rear gasket through screws; the two modes can ensure that the connection is firmer, the motor is not easy to fall off in the use process, and the performance and the service life of the motor product are not affected.

In the outer rotor motor with temperature monitoring, the front temperature sensor and the rear temperature sensor are both arranged on the outer side of the mounting seat, the front temperature sensor is fixedly connected to the outer wall of the mounting seat corresponding to the front bearing or fixedly connected to the stator assembly corresponding to the front bearing and is tightly attached to the outer wall of the mounting seat, and the rear temperature sensor is fixedly connected to the outer wall of the mounting seat corresponding to the rear bearing or fixedly connected to the stator assembly corresponding to the rear bearing and is tightly attached to the outer wall of the mounting seat.

In this scheme, preceding temperature sensor and back temperature sensor all install in the outside of mount pad, and the error between temperature data and the sensor direct subsides temperature data on the bearing in this mounting means is within 2 ℃, and measuring result is comparatively accurate, makes the connection more firm, is difficult for dropping in the use, does not influence the performance and the life of motor product.

In the outer rotor motor with temperature monitoring, the contact piece comprises a cylindrical insert, the outer wall of the rear part of the insert is provided with a diameter reducing part, the diameter reducing part is in plug-in fit with the mounting seat, the inner wall of the front part of the insert is provided with a mounting groove, the front bearing is arranged in the mounting groove, and the front temperature sensor is fixedly connected to the inner side wall of the insert close to the mounting groove or the outer side wall corresponding to the mounting groove; the insert is made of a material having good thermal conductivity.

The form of inserts that adopts in this scheme, when preceding temperature sensor directly passes through the screw or buckle is fixed in on the inside wall of inserts, the error between the temperature data that surveys in this mounting means and the sensor direct subsides temperature data on the bearing is within 1 ℃, when preceding temperature sensor is fixed in on the lateral wall of inserts, similar with the condition of being fixed in the mount pad lateral wall, the error between the temperature data that surveys in this mounting means and the temperature data that the sensor is direct to be pasted on the bearing is within 2 ℃, above-mentioned two kinds carry out measuring result to the temperature of front bearing through the inserts and are all comparatively accurate, and temperature sensor is difficult for dropping before can in the use, do not influence the performance and the life of motor product.

In the outer rotor motor with temperature monitoring, the outer side wall at the rear part of the mounting seat is provided with the mounting hole, and the rear temperature sensor is fixedly connected to the mounting seat through a fastener matched with the mounting hole.

When back temperature sensor installs on the lateral wall at mount pad rear portion, above-mentioned mounting hole and the design of corresponding fastener can make back temperature sensor and mount pad be connected more firm and inseparable, be difficult for dropping, and the result of measuring is more accurate, is favorable to improving the performance and the life of motor product. The fastener is a screw or a buckle.

In the outer rotor motor with the temperature monitoring function, the base and the mounting seat are of an integrated structure, a plurality of L-shaped reinforcing ribs are arranged at the joint of the mounting seat and the base, and the reinforcing ribs are arranged at intervals along the circumferential direction of the mounting seat.

The integrated base and mounting seat can enable the structural strength of the base and the mounting seat to be higher, and the structural strength of the base and the mounting seat can be further improved through the design of the reinforcing ribs, so that the service life of the outer rotor motor is prolonged; meanwhile, the structure of the reinforcing rib can also play a role in positioning the stator assembly, so that the stator assembly is prevented from slipping relative to the mounting seat in the working process, potential safety hazards are generated, the slipping of the stator assembly is also likely to touch a temperature sensor mounted on the outer side wall of the mounting seat, or touch a wire connected with the temperature sensor mounted on the inner side of the mounting seat, and therefore the temperature sensor falls off or the wire is disconnected, and the accuracy of temperature monitoring and the service life are influenced.

In the outer rotor motor with temperature monitoring, the front gasket and the rear gasket are in ring shapes, the front gasket and the rear gasket are sleeved on the rotating shaft, the outer edges of the front gasket and the rear gasket are provided with contact convex rings protruding to one side or two sides, the contact convex rings can be propped against the outer ring of the corresponding front bearing or rear bearing, the rotating shaft is sleeved with a waveform elastic gasket, the inner diameter of the waveform elastic gasket is larger than that of the front gasket and the rear gasket, the waveform elastic gasket is arranged on one side, away from the front bearing, of the front gasket or on one side, away from the rear bearing, of the rear gasket, and the waveform elastic gasket enables the contact convex rings of the corresponding front gasket to be clung to the front bearing or the contact convex rings of the corresponding rear gasket to be clung to the rear bearing.

The structure of the front gasket and the rear gasket can prevent the bearing inner ring from directly contacting with the corresponding gasket, and prevent sliding friction between the bearing inner ring and the gasket due to rotation of the bearing inner ring, so that abrasion of the gasket and the bearing inner ring is avoided, and the service lives of the front gasket and the rear gasket are prolonged; the design of the wave-shaped elastic gasket can enable the gasket to be in closer contact with the corresponding bearing outer ring, so that heat transfer efficiency is guaranteed, and temperature data measured by a sensor fixed on the gasket are more accurate and reliable.

Compared with the prior art, the utility model has the technical effects that:

according to the utility model, the temperature sensor (front temperature sensor or rear temperature sensor) is arranged on the outer wall of the mounting seat or is fixedly connected with the contact piece contacted with the bearing (front bearing or rear bearing) to realize the fixation of the temperature sensor, so that the temperature sensor is effectively fixed to a position close to the bearing, the temperature of the bearing measured by the temperature sensor is more accurate, and the real-time monitoring of the temperature of the bearing is realized.

Drawings

Fig. 1 is a schematic view of the semi-sectional structure of the present utility model.

Fig. 2 is a partial enlarged view of the first aspect at a in fig. 1.

Fig. 3 is a partial enlarged view of scheme two at a in fig. 1.

Fig. 4 is a partial enlarged view of scheme three at a in fig. 1.

Fig. 5 is a partial enlarged view of scheme four at a in fig. 1.

Fig. 6 is a schematic view of a semi-sectional structure and a partially enlarged view of a fifth embodiment of the present utility model.

Fig. 7 is a schematic view of a semi-sectional structure of the present utility model applied to an external rotor fan.

Fig. 8 is a schematic view of the structure of the base and mount of the present utility model.

Fig. 9 is a schematic view of the structure of the front or rear gasket of the present utility model.

Fig. 10 is a cross-sectional view of a front or rear gasket of the present utility model.

Fig. 11 is a schematic structural view of the wave spring washer of the present utility model.

In the figure, 1, a controller assembly; 2. a rotor assembly; 3. a stator assembly; 4. a base; 41. a through hole; 5. a mounting base; 51. a threading hole; 52. a mounting hole; 53. a fastener; 54. reinforcing ribs; 6. a rotating shaft; 71. a front bearing; 72. a rear bearing; 73. a front temperature sensor; 74. a rear temperature sensor; 81. a front gasket; 82. a rear gasket; 83. a contact collar; 84. an insert; 841. a reduced diameter portion; 842. a mounting groove; 85. wave-shaped elastic washers.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

The outer rotor motor with the temperature monitoring function comprises a base 4, a rotor assembly 2 and a stator assembly 3, wherein a cylindrical mounting seat 5 is arranged on the front side of the base 4, the stator assembly 3 is mounted on the outer side wall of the mounting seat 5, a rotating shaft 6 is rotatably arranged in the mounting seat 5, the rotating shaft 6 is connected with the mounting seat 5 through a front bearing 71 and a rear bearing 72 which are arranged at intervals, the front end of the rotating shaft 6 extends out of the mounting seat 5 and is fixedly connected with the rotor assembly 2, a front temperature sensor 73 is arranged on the rear side of the front bearing 71 or on the outer wall of the mounting seat 5 corresponding to the front bearing 71, and a rear temperature sensor 74 is arranged on the front side of the rear bearing 72 or on the outer wall of the mounting seat 5 corresponding to the rear bearing 72; when the front temperature sensor 73 and/or the rear temperature sensor 74 are located in the mounting 5, the front temperature sensor 73 and/or the rear temperature sensor 74 are fixed to the corresponding contact pieces, which are in contact with the corresponding front bearing 71 and/or rear bearing 72. The outer rotor motor is fixed by installing the temperature sensor (the front temperature sensor 73 or the rear temperature sensor 74) on the outer wall of the mounting seat 5 or fixedly connecting the temperature sensor with a contact piece contacted with the bearing (the front bearing 71 or the rear bearing 72), so that the temperature sensor is effectively fixed to a position close to the bearing, the bearing temperature measured by the temperature sensor is more accurate, and the real-time monitoring of the bearing temperature is realized.

Further, the base 4 is provided with at least one through hole 41 penetrating the base 4 back and forth, and the rear end of the mounting seat 5 is provided with a threading hole 51. The through hole 41 is designed such that the wires connected to the front temperature sensor 73 and the rear temperature sensor 74 can pass through the base 4 through the through hole 41 and be electrically connected to the corresponding interfaces on the controller assembly 1; when the front temperature sensor 73 and/or the rear temperature sensor 74 are/is arranged in the mounting seat 5, the corresponding wires can enter the mounting seat 5 from the threading holes 51; the base 4 and the mounting seat 5 are kept motionless when the outer rotor motor works normally, so that the wires cannot influence the normal rotation of the rotor in the outer rotor motor through the through holes 41 and the threading holes 51, and the stability of the outer rotor motor during working is improved.

Scheme one

As shown in fig. 2, the front temperature sensor 73 is disposed in the mounting seat 5, the rear temperature sensor 74 is disposed outside the mounting seat 5, the contact element includes a front gasket 81, the front side surface of the front gasket 81 is tightly attached to the rear side surface of the front bearing 71, the front temperature sensor 73 is fixedly connected to the rear side surface of the front gasket 81, and the rear temperature sensor 74 is fixedly connected to the outer wall of the mounting seat 5 corresponding to the rear bearing 72 or to the stator assembly 3 corresponding to the position of the rear bearing 72 and tightly attached to the outer wall of the mounting seat 5; the front gasket 81 is made of a material having good thermal conductivity.

In the scheme, the rear temperature sensor 74 is arranged on the outer side of the mounting seat 5, in the mounting mode, the error between the temperature data measured by the rear temperature sensor 74 and the temperature data directly attached to the bearing is within 2 ℃, the measurement result is accurate, the front temperature sensor 73 measures through the front gasket 81, the error between the measured temperature data and the temperature data directly attached to the bearing is within 1 ℃, the measurement result is more accurate, and the front temperature sensor 73 can be fixed on the front gasket 81 through screws; the two modes can ensure that the connection is firmer, the motor is not easy to fall off in the use process, and the performance and the service life of the motor product are not affected.

Scheme II

As shown in fig. 3, the front temperature sensor 73 and the rear temperature sensor 74 are both arranged in the mounting seat 5, the contact element comprises a front gasket 81 and a rear gasket 82, the front side surface of the front gasket 81 is clung to the rear side surface of the front bearing 71, the front temperature sensor 73 is fixedly connected to the rear side surface of the front gasket 81, the rear gasket 82 is clung to the front side surface or the rear side surface of the rear bearing 72, and the rear temperature sensor 74 is fixedly connected to the side surface of the rear gasket 82 far away from the rear temperature sensor 74; the front gasket 81 and the rear gasket 82 are both made of a material having good thermal conductivity.

In the scheme, the front temperature sensor 73 is contacted with the front bearing 71 through the front gasket 81, the rear temperature sensor 74 is contacted with the rear bearing 72 through the rear gasket 82, the front temperature sensor 73 and the rear temperature sensor 74 can be more close to the front bearing 71 and the rear bearing 72 through the design, and the error between the temperature data measured by the scheme and the temperature data of the sensor directly attached to the bearings is within 1 ℃, so that the measurement result is more accurate; and after adopting preceding gasket 81 and back gasket 82, preceding temperature sensor 73 and back temperature sensor 74 can all be fixed in on corresponding preceding gasket 81 and the back gasket 82 through the screw, and the connection is more firm, is difficult for dropping in the use, does not influence motor product performance and life.

Scheme III

As shown in fig. 4, the front temperature sensor 73 and the rear temperature sensor 74 are both disposed on the outer side of the mounting seat 5, the front temperature sensor 73 is fixedly connected to the outer wall of the mounting seat 5 corresponding to the front bearing 71 or fixedly connected to the stator assembly 3 corresponding to the front bearing 71 and is tightly attached to the outer wall of the mounting seat 5, and the rear temperature sensor 74 is fixedly connected to the outer wall of the mounting seat 5 corresponding to the rear bearing 72 or fixedly connected to the stator assembly 3 corresponding to the rear bearing 72 and is tightly attached to the outer wall of the mounting seat 5.

In this scheme, preceding temperature sensor 73 and back temperature sensor 74 all install in the outside of mount pad 5, and the error between temperature data and the sensor direct subsides temperature data on the bearing in this mounting means is within 2 ℃, and measuring result is comparatively accurate, makes the connection more firm, is difficult for dropping in the use, does not influence the performance and the life of motor product.

Scheme IV

As shown in fig. 5, the front temperature sensor 73 is disposed outside the mounting seat 5, the rear temperature sensor 74 is disposed in the mounting seat 5, the front temperature sensor 73 is fixedly connected to the outer wall of the mounting seat 5 corresponding to the front bearing 71 or fixedly connected to the stator assembly 3 corresponding to the front bearing 71 and is tightly attached to the outer wall of the mounting seat 5, the contact member comprises a rear gasket 82, the rear gasket 82 is tightly attached to the front side or the rear side of the rear bearing 72, and the rear temperature sensor 74 is fixedly connected to the side of the rear gasket 82 away from the rear temperature sensor 74; the rear gasket 82 is made of a material having good thermal conductivity.

In the scheme, the front temperature sensor 73 is arranged on the outer side of the mounting seat 5, in the mounting mode, the error between the temperature data measured by the front temperature sensor 73 and the temperature data directly attached to the bearing is within 2 ℃, the measurement result is accurate, the rear temperature sensor 74 measures through the rear gasket 82, the error between the measured temperature data and the temperature data directly attached to the bearing is within 1 ℃, the measurement result is more accurate, and the rear temperature sensor 74 can be fixed on the rear gasket 82 through screws; the two modes can ensure that the connection is firmer, the motor is not easy to fall off in the use process, and the performance and the service life of the motor product are not affected.

Scheme five

As shown in fig. 6, the contact includes a cylindrical insert 84, the outer wall of the rear portion of the insert 84 is provided with a reduced diameter portion 841, the reduced diameter portion 841 is in plug-in fit with the mounting seat 5, the inner wall of the front portion of the insert 84 is provided with a mounting groove 842, the front bearing 71 is arranged in the mounting groove 842, and the front temperature sensor 73 is fixedly connected to the inner wall of the insert 84 close to the mounting groove 842 or fixedly connected to the outer side wall corresponding to the mounting groove 842; the insert 84 is made of a material having good thermal conductivity.

In the form of the insert 84 adopted in the scheme, when the front temperature sensor 73 is directly fixed on the inner side wall of the insert 84 through a screw or a buckle, the error between the temperature data measured in the mounting mode and the temperature data of the sensor directly attached to the bearing is within 1 ℃, when the front temperature sensor 73 is fixed on the outer side wall of the insert 84, similar to the condition of being fixed on the outer side wall of the mounting seat 5, the error between the temperature data measured in the mounting mode and the temperature data of the sensor directly attached to the bearing is within 2 ℃, the obtained results of the temperature measurement of the front bearing 71 through the insert 84 are accurate, and the front temperature sensor 73 is not easy to drop in the using process, so that the performance and the service life of a motor product are not affected.

Further, a mounting hole 52 is provided on the outer sidewall of the rear portion of the mounting seat 5, and the rear temperature sensor 74 is fixedly connected to the mounting seat 5 by a fastener 53 matched with the mounting hole 52. When the rear temperature sensor 74 is mounted on the outer side wall of the rear portion of the mounting seat 5, the mounting holes 52 and the corresponding fasteners 53 can enable the rear temperature sensor 74 to be connected with the mounting seat 5 more firmly and tightly, the rear temperature sensor 74 is not easy to fall off, the measured result is more accurate, and the performance and the service life of a motor product are improved. The fastener 53 is a screw or a buckle.

As shown in fig. 8, the base 4 and the mounting seat 5 are integrally formed, and a plurality of L-shaped reinforcing ribs 54 are provided at the joint of the mounting seat 5 and the base 4, and the reinforcing ribs 54 are arranged at intervals along the circumferential direction of the mounting seat 5. The integrated base 4 and mounting seat 5 can enable the structural strength of the base 4 and the structural strength of the mounting seat 5 to be higher, and the structural strength of the base 4 and the structural strength of the mounting seat 5 can be further improved through the design of the reinforcing ribs 54, so that the service life of the outer rotor motor is prolonged; meanwhile, the structure of the reinforcing rib 54 can also play a role in positioning the stator assembly 3, so that the stator assembly 3 is prevented from slipping relative to the mounting seat 5 in the working process, potential safety hazards are generated, the slipping of the stator assembly 3 is also likely to touch a temperature sensor mounted on the outer side wall of the mounting seat 5, or touch a wire connected with the temperature sensor mounted on the inner side of the mounting seat 5, and accordingly the temperature sensor falls off or the wire is disconnected, and the accuracy and the service life of temperature monitoring are affected.

As shown in fig. 2, 3, 5, 9 and 10, the front gasket 81 and the rear gasket 82 are in a ring shape, the front gasket 81 and the rear gasket 82 are sleeved on the rotating shaft 6, the outer edges of the front gasket 81 and the rear gasket 82 are provided with contact convex rings 83 protruding to one side or two sides, the contact convex rings 83 can be abutted against the outer ring of the corresponding front bearing 71 or rear bearing 72, the rotating shaft 6 is sleeved with a wave-shaped elastic gasket 85, the inner diameter of the wave-shaped elastic gasket 85 is larger than the inner diameters of the front gasket 81 and the rear gasket 82, the wave-shaped elastic gasket 85 is arranged on one side of the front gasket 81 away from the front bearing 71 or on one side of the rear gasket 82 away from the rear bearing 72, and the wave-shaped elastic gasket 85 can enable the contact convex rings 83 of the corresponding front gasket 81 to be abutted against the front bearing 71 or the contact convex rings 83 of the corresponding rear gasket 82 to be abutted against the rear bearing 72. The structure of the front gasket 81 and the rear gasket 82 can prevent the bearing inner ring from directly contacting with the corresponding gasket, and prevent sliding friction between the bearing inner ring and the gasket due to rotation of the bearing inner ring, so that abrasion of the gasket and the bearing inner ring is avoided, and the service lives of the front gasket 81 and the rear gasket 82 are prolonged; the wave-shaped elastic washer 85 is designed to enable the gasket to be in closer contact with the corresponding bearing outer ring, so that heat transfer efficiency is ensured, and temperature data measured by a sensor fixed on the gasket is more accurate and reliable.

The above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered by the protection scope defined by the claims.

Claims (10)

1. The utility model provides a take temperature monitoring's external rotor motor, includes base (4), rotor subassembly (2) and stator module (3), the front side of base (4) is equipped with mount pad (5) of tube-shape, stator module (3) are installed on the lateral wall of mount pad (5), rotatable pivot (6) that set up in mount pad (5), pivot (6) link to each other with mount pad (5) through preceding bearing (71) and rear bearing (72) that the interval set up, mount pad (5) and with rotor subassembly (2) fixed connection are stretched out to the front end of pivot (6), its characterized in that: a front temperature sensor (73) is arranged on the rear side of the front bearing (71) or on the outer wall of the mounting seat (5) corresponding to the front bearing (71), and a rear temperature sensor (74) is arranged on the front side of the rear bearing (72) or on the outer wall of the mounting seat (5) corresponding to the rear bearing (72); when the front temperature sensor (73) and/or the rear temperature sensor (74) are located in the mounting seat (5), the front temperature sensor (73) and/or the rear temperature sensor (74) are/is fixed on corresponding contact pieces, and the contact pieces are in contact with corresponding front bearings (71) and/or rear bearings (72).

2. The external rotor motor with temperature monitoring according to claim 1, wherein: the front temperature sensor (73) and the rear temperature sensor (74) are both arranged in the mounting seat (5), the contact piece comprises a front gasket (81) and a rear gasket (82), the front side surface of the front gasket (81) is clung to the rear side surface of the front bearing (71), the front temperature sensor (73) is fixedly connected to the rear side surface of the front gasket (81), the rear gasket (82) is clung to the front side surface or the rear side surface of the rear bearing (72), and the rear temperature sensor (74) is fixedly connected to the side surface, far away from the rear temperature sensor (74), of the rear gasket (82); the front gasket (81) and the rear gasket (82) are both made of a material with good thermal conductivity.

3. The external rotor motor with temperature monitoring according to claim 1, wherein: the front temperature sensor (73) is arranged in the mounting seat (5), the rear temperature sensor (74) is arranged on the outer side of the mounting seat (5), the contact piece comprises a front gasket (81), the front side surface of the front gasket (81) is clung to the rear side surface of the front bearing (71), the front temperature sensor (73) is fixedly connected to the rear side surface of the front gasket (81), and the rear temperature sensor (74) is fixedly connected to the outer wall of the mounting seat (5) corresponding to the rear bearing (72) or the stator assembly (3) corresponding to the rear bearing (72) and clung to the outer wall of the mounting seat (5); the front gasket (81) is made of a material with good thermal conductivity.

4. The external rotor motor with temperature monitoring according to claim 1, wherein: the front temperature sensor (73) is arranged on the outer side of the mounting seat (5), the rear temperature sensor (74) is arranged in the mounting seat (5), the front temperature sensor (73) is fixedly connected to the outer wall of the mounting seat (5) corresponding to the front bearing (71) or the stator assembly (3) corresponding to the front bearing (71) and is tightly attached to the outer wall of the mounting seat (5), the contact piece comprises a rear gasket (82), the rear gasket (82) is tightly attached to the front side surface or the rear side surface of the rear bearing (72), and the rear temperature sensor (74) is fixedly connected to the side surface, away from the rear temperature sensor (74), of the rear gasket (82); the rear gasket (82) is made of a material having good thermal conductivity.

5. The external rotor motor with temperature monitoring according to claim 1, wherein: the front temperature sensor (73) and the rear temperature sensor (74) are both arranged on the outer side of the mounting seat (5), the front temperature sensor (73) is fixedly connected to the outer wall of the mounting seat (5) corresponding to the front bearing (71) or is fixedly connected to the stator assembly (3) corresponding to the front bearing (71) and clings to the outer wall of the mounting seat (5), and the rear temperature sensor (74) is fixedly connected to the outer wall of the mounting seat (5) corresponding to the rear bearing (72) or is fixedly connected to the stator assembly (3) corresponding to the rear bearing (72) and clings to the outer wall of the mounting seat (5).

6. The external rotor motor with temperature monitoring according to claim 1, wherein: the contact comprises a cylindrical insert (84), wherein a diameter-reducing part (841) is arranged on the outer wall of the rear part of the insert (84), the diameter-reducing part (841) is in plug-in fit with a mounting seat (5), a mounting groove (842) is formed in the inner wall of the front part of the insert (84), the front bearing (71) is arranged in the mounting groove (842), and the front temperature sensor (73) is fixedly connected to the inner side wall, close to the mounting groove (842), of the insert (84) or the outer side wall corresponding to the mounting groove (842); the insert (84) is made of a material having good thermal conductivity.

7. An external rotor motor with temperature monitoring according to any one of claims 1-6, characterized in that: the base (4) is provided with at least one through hole (41) penetrating the base (4) front and back, and the rear end of the mounting seat (5) is provided with a threading hole (51).

8. An external rotor motor with temperature monitoring according to any one of claims 1-6, characterized in that: the mounting seat is characterized in that a mounting hole (52) is formed in the outer side wall of the rear portion of the mounting seat (5), and the rear temperature sensor (74) is fixedly connected to the mounting seat (5) through a fastener (53) matched with the mounting hole (52).

9. An external rotor motor with temperature monitoring according to any one of claims 1-6, characterized in that: the base (4) and the mounting seat (5) are of an integrated structure, a plurality of L-shaped reinforcing ribs (54) are arranged at the joint of the mounting seat (5) and the base (4), and the reinforcing ribs (54) are arranged at intervals along the circumferential direction of the mounting seat (5).

10. An external rotor motor with temperature monitoring according to claim 2 or 3 or 4, characterized in that: preceding gasket (81) and back gasket (82) are the ring form, preceding gasket (81) and back gasket (82) cover are located on pivot (6), preceding gasket (81) and back gasket (82) are equipped with to one side or both sides convex contact bulge loop (83) outward, contact bulge loop (83) can support with the outer lane of corresponding preceding bearing (71) or back bearing (72), the cover is equipped with wave form elastic washer (85) on pivot (6), wave form elastic washer (85)'s internal diameter is greater than preceding gasket (81) and back gasket (82)'s internal diameter, wave form elastic washer (85) are located preceding gasket (81) and are kept away from preceding bearing (71) one side or are located back gasket (82) and keep away from back bearing (72) one side, wave form elastic washer (85) can make the contact bulge loop (83) of corresponding preceding gasket (81) hug closely in preceding bearing (71) or make the contact bulge loop (83) of corresponding back gasket (82) hug closely in back bearing (72).

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