CN111277071A

CN111277071A - Permanent magnet motor

Info

Publication number: CN111277071A
Application number: CN202010261508.2A
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2020-06-12
Also published as: CN109962579B; CN109962579A

Abstract

The invention relates to a permanent magnet motor, which adopts the technical scheme that: including base, bolt seat and shell, the base upside is provided with the shell, the base both sides are provided with the bolt seat. Has the advantages that: through the feed liquor pipe that sets up, the drain pipe, the liquid reserve tank, miniature pump machine, the cooling tube, the fin, heat exchanger and fin dispel the heat, make the heat that the motor during operation produced in time conduct effectively and come out and give off, the radiating efficiency of device has greatly been improved, guarantee the normal work of motor, heating wire through setting up, make the motor can in time heat preservation by heating under the low temperature state, weaken the temperature variation of permanent magnet, avoid the permanent magnet to take place the demagnetization, through a temperature sensor and the display screen that set up, can the inside temperature variation of accurate measurement motor, adjust and provide data assurance for the cooling of motor or heat preservation.

Description

Permanent magnet motor

Technical Field

The invention relates to the field of permanent magnet motors, in particular to a permanent magnet motor.

Background

The rare earth permanent magnet motor is a novel permanent magnet motor appearing in the early 70 s, and has a series of advantages of small size, light weight, high efficiency, good characteristics and the like due to the high magnetic energy product and the high coercive force of the rare earth permanent magnet. Current tombarthite permanent-magnet machine is at the cooling efficiency low to the motor core, make the core temperature rise, influence the work of motor, and simultaneously, current permanent-magnet machine is under low temperature condition, lack and heat retaining device heats the core, make permanent magnet temperature variation big, cause the permanent magnet demagnetization, and, the inside device that lacks the temperature monitoring of current permanent-magnet machine, make the inside temperature of motor can not obtain accurate measurement, influence the cooling and the heat preservation regulation of motor, consequently need a neotype device to solve current problem.

Disclosure of Invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide a permanent magnet motor.

The invention realizes the purpose through the following technical scheme:

a cooling rare earth permanent magnet motor comprises a base, a bolt seat and a shell, wherein the shell is arranged on the upper side of the base, the bolt seat is arranged on two sides of the base, radiating fins are arranged on the outer side of the shell, an end cover is arranged at one end of the shell, a junction box is arranged on the upper side of the shell, a wiring hole is arranged on one side of the junction box, a liquid inlet pipe is arranged on one side of the shell away from the junction box, a micro pump machine is arranged at one end of the liquid inlet pipe away from the shell, a liquid storage tank is arranged on one side of the micro pump machine away from the liquid inlet pipe, a radiating cover is arranged on the lower side of the micro pump machine, a radiating fan is arranged in the radiating cover, a radiating pipe is arranged in the center of the liquid storage tank, a heating wire, the utility model discloses a solar water heater, including liquid reserve tank, display screen, circulation chamber, heat conduction ring, bracing piece, base downside is provided with the shock pad, the liquid reserve tank outside is provided with the display screen, display screen one side is provided with No. two temperature sensor, No. two temperature sensor with the liquid reserve tank passes through the draw-in groove and connects, No. two temperature sensor's model is KTWDCGQ, be provided with the circulation chamber in the shell, the circulation intracavity is provided with the heat conduction ring, the heat conduction ring outside is provided with the bracing piece, the heat conduction ring inboard is provided with stator core, the stator core inboard is provided with the coil, be provided with rotor core in the coil, the rotor core outside is provided with the permanent magnet, the.

Further, the base with the shock pad is glued, the base with the welding of bolt seat, the base with the shell passes through bolted connection.

Further, the shell is welded with the radiating fins, the shell is connected with the end covers through bolts, and the rotating shaft is connected with the end covers through bearings.

Furthermore, the shell is connected with the junction box through a bolt, the liquid inlet pipe is connected with the shell through a thread, and the micro pump is connected with the liquid inlet pipe through a thread.

Further, the heat dissipation cover with the shell passes through bolted connection, the heat dissipation fan with the pivot passes through splined connection, the pivot with rotor core passes through splined connection.

Further, the rotor core is connected with the permanent magnet through a clamping groove, the heat conducting ring is connected with the shell through the supporting rod, and the supporting rod is welded with the shell.

Furthermore, the bracing piece with the heat conduction ring welding, the bracing piece has four, stator core with the heat conduction ring passes through the draw-in groove and connects.

Further, stator core with the coil winding is connected, a temperature sensor with the shell passes through the draw-in groove and is connected, the liquid reserve tank with the feed liquor pipe passes through threaded connection.

Further, the heating wire with the liquid reserve tank passes through bolted connection, the cooling tube with the liquid reserve tank welding.

Furthermore, the type of the first temperature sensor is KTWDCGQ.

The specific working principle is as follows: when the device is used, the device is connected to an external power supply through the wiring hole on the junction box, then the micro pump is connected to the power supply, then cooling or heating measures are taken for the device according to the temperature displayed on the display screen, after the device is started, the coil on the stator core generates a magnetic field because current flows through the coil, the permanent magnet on the rotor core generates rotation under the action of the magnetic field of the electromagnetic field, so that the rotor core starts to rotate, the rotating shaft starts to rotate and simultaneously drives the heat dissipation fan to rotate, heat generated by the device is dissipated, the heat dissipation fins on the shell can also dissipate heat, the heat generated inside the motor is transferred to cooling oil in the circulation cavity through the heat conduction ring, and the cooling oil after absorbing heat is pumped into the liquid storage box through the liquid inlet pipe and the micro pump, when the cooling oil flows through the radiating pipe, the air blown out by the radiating fan can cool the cooling oil, the cooling oil after being cooled returns to the circulating cavity through the liquid outlet pipe for circulating cooling, the arrangement greatly improves the cooling efficiency of the motor, avoids the overhigh temperature of the motor, ensures the normal work of the motor, starts the heating function of the electric heating wire when the external environment temperature is lower, heats the cooling oil entering the liquid storage tank, returns to the circulating cavity through the liquid outlet pipe, ensures the temperature of the motor to rise through the heat transfer of the heat conducting ring, keeps the temperature of the motor constant, avoids the permanent magnet demagnetization caused by the great temperature change of the motor, and can accurately measure the temperature in the motor through the temperature sensor, and further cooling or heating treatment can be carried out on the motor.

The invention has the beneficial effects that:

1. the liquid inlet pipe, the liquid outlet pipe, the liquid storage tank, the micro pump, the radiating pipe, the radiating fin, the radiating cover and the radiating fin are arranged, so that heat generated by the motor during working is effectively conducted out in time to be radiated, the radiating efficiency of the device is greatly improved, and the normal work of the motor is ensured;

2. the motor can be heated and insulated in time in a low-temperature state through the arranged electric heating wire, so that the temperature change of the permanent magnet is weakened, and the permanent magnet is prevented from demagnetizing;

3. through a temperature sensor and the display screen that set up, can the inside temperature variation of accurate measurement motor, for the cooling of motor or keep warm to adjust and provide data assurance.

Drawings

FIG. 1 is a front view of a cooled rare earth permanent magnet motor according to the present invention;

FIG. 2 is a left side cross-sectional view of a cooled rare earth permanent magnet motor according to the present invention;

FIG. 3 is a right side view of a reservoir in a cooled rare earth permanent magnet motor according to the present invention;

fig. 4 is a bottom view of a base in a cooling type rare earth permanent magnet motor according to the present invention.

The reference numerals are explained below:

1. a base; 2. a bolt seat; 3. an end cap; 4. a rotating shaft; 5. a heat sink; 6. a junction box; 7. a wiring hole; 8. a housing; 9. a liquid inlet pipe; 10. a liquid outlet pipe; 11. a heat dissipation cover; 12. a circulation chamber; 13. a support bar; 14. a heat conducting ring; 15. a stator core; 16. a coil; 17. a rotor core; 18. a permanent magnet; 19. a heat dissipation fan; 20. an electric heating wire; 21. a liquid storage tank; 22. a radiating pipe; 23. a micro pump; 24. a first temperature sensor; 25. a display screen; 26. a second temperature sensor; 27. a shock-absorbing pad.

Detailed Description

The invention will be further described with reference to the accompanying drawings in which:

as shown in fig. 1-4, a cooling rare earth permanent magnet motor includes a base 1, a bolt seat 2 and a housing 8, the housing 8 is disposed on the upper side of the base 1, the bolt seat 2 is disposed on both sides of the base 1, a heat sink 5 is disposed on the outer side of the housing 8, an end cover 3 is disposed on one end of the housing 8, a junction box 6 is disposed on the upper side of the housing 8, a wiring hole 7 is disposed on one side of the junction box 6, a liquid inlet pipe 9 is disposed on one side of the housing 8 away from the junction box 6, a micro pump 23 is disposed on one end of the liquid inlet pipe 9 away from the housing 8, a liquid storage tank 21 is disposed on one side of the micro pump 23 away from the liquid inlet pipe 9, a heat dissipation cover 11 is disposed on the lower side of the micro pump 23, a heat dissipation fan 19 is disposed in the heat dissipation cover 11, a liquid outlet pipe 10 is arranged on the lower side of the liquid storage tank 21, the liquid outlet pipe 10 is in threaded connection with the liquid storage tank 21, a display screen 25 is arranged on the outer side of the liquid storage tank 21, a second temperature sensor 26 is arranged on one side of the display screen 25, the second temperature sensor 26 is connected with the liquid storage tank 21 through a clamping groove, the model of the second temperature sensor 26 is KTWDCGQ, a circulation cavity 12 is arranged in the shell 8, a heat conduction ring 14 is arranged in the circulation cavity 12, a support rod 13 is arranged on the outer side of the heat conduction ring 14, a stator core 15 is arranged on the inner side of the heat conduction ring 14, a coil 16 is arranged on the inner side of the stator core 15, a rotor core 17 is arranged in the coil 16, a permanent magnet 18 is arranged on the outer side of the rotor core 17, a rotating shaft 4 is arranged at the center of the rotor core, the lower side of the base 1 is provided with a shock pad 27.

In this embodiment, base 1 with shock pad 27 splices, base 1 with 2 welding of bolt seat, through bolt seat 2 can with base 1 is fixed, base 1 with shell 8 passes through bolted connection, shock pad 27 can make the device weaken greatly in the vibrations that receive at the during operation, avoids permanent magnet 18 receives violent vibrations and causes the demagnetization.

In this embodiment, the shell 8 with the fin 5 welding, the shell 8 with the end cover 3 passes through bolted connection, the pivot 4 with the end cover 3 passes through the bearing and connects, the fin 5 can assist the heat dissipation cooling, the end cover 3 can protect the device.

In this embodiment, the housing 8 is connected to the junction box 6 by a bolt, the liquid inlet pipe 9 is connected to the housing 8 by a thread, the micro pump 23 is connected to the liquid inlet pipe 9 by a thread, the junction box 6 can be used as a device for connecting a power supply, and the micro pump 23 can pump cooling oil.

In this embodiment, the heat dissipation cover 11 with shell 8 passes through bolted connection, heat dissipation fan 19 with pivot 4 passes through splined connection, pivot 4 with rotor core 17 passes through splined connection, heat dissipation cover 11 can be right heat dissipation fan 19 shelters from, avoids heat dissipation fan 19 injures operating personnel when rotating.

In this embodiment, the rotor core 17 and the permanent magnet 18 are connected through a clamping groove, the heat conducting ring 14 and the housing 8 are connected through the supporting rod 13, the supporting rod 13 is welded to the housing 8, the heat conducting ring 14 can transfer heat in the motor to the circulation cavity 12, and the supporting rod 13 can connect the heat conducting ring 14 to the housing 8.

In this embodiment, the support rods 13 are welded to the heat conducting ring 14, there are four support rods 13, the stator core 15 is connected to the heat conducting ring 14 through a clamping groove, and the stator core 15 can generate an integral magnetic field when the coil 16 is powered on.

In this embodiment, stator core 15 with 16 windings of coil are connected, a temperature sensor 24 with shell 8 passes through the draw-in groove and connects, liquid reserve tank 21 with feed liquor pipe 9 passes through threaded connection, a temperature in the motor can be measured to temperature sensor 24, liquid reserve tank 21 can save the cooling oil.

In this embodiment, the heating wire 20 is connected to the liquid storage tank 21 by a bolt, the heat dissipation pipe 22 is welded to the liquid storage tank 21, and the heating wire 20 can heat the cooling oil in the liquid storage tank 21.

In this embodiment, the model of the first temperature sensor 24 is KTWDCGQ, and the temperature measured by the first temperature sensor 24 is displayed on the display screen 25.

The specific working principle is as follows: when the device is used, the device is connected to an external power supply through the wiring hole 7 on the junction box 6, then the micro pump 23 is connected to the power supply, then the device is cooled or heated according to the temperature displayed on the display screen 25, after the device is started, the coil 16 on the stator core 15 generates a magnetic field because current flows, the permanent magnet 18 on the rotor core 17 rotates under the action of the magnetic field of the electromagnetic field, so that the rotor core 17 starts to rotate, the rotating shaft 4 drives the heat dissipation fan 19 to rotate while rotating, and further the heat generated by the device is dissipated, the heat dissipation fins 5 on the shell 8 can also dissipate the heat, and the heat generated inside the motor is transferred to the cooling oil in the circulation cavity 12 through the heat conduction ring 14, the cooling oil after absorbing heat is pumped into the liquid storage tank 21 through the liquid inlet pipe 9 and the micro pump 23, when the cooling oil flows through the heat dissipation pipe 22, the air blown by the heat dissipation fan 19 can cool the cooling oil, the cooled cooling oil flows back into the circulation cavity 12 through the liquid outlet pipe 10 for circulation cooling, such an arrangement enables the cooling efficiency of the motor to be greatly improved, avoids the temperature of the motor from being too high, ensures the normal operation of the motor, when the external environment temperature is low, the heating function of the electric heating wire 20 is started, the cooling oil entering the liquid storage tank 21 is heated and warmed, the heated cooling oil flows back into the circulation cavity 12 through the liquid outlet pipe 10, the temperature of the motor is raised through the heat transfer of the heat conduction ring 14, and the temperature of the motor is kept constant, avoid the great temperature variation of motor to cause permanent magnet 18 demagnetization, through a temperature sensor 24 can accurately measure the temperature in the motor, and then can take cooling or intensification to handle the motor.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims

1. A permanent magnet motor is characterized by comprising the following use processes:

firstly, the device is connected to an external power supply through a wiring hole (7) on a junction box (6), then a micro pump machine (23) is connected with the power supply, then, according to the temperature displayed on a display screen (25), a cooling or heating measure is taken for the device, after the device is started, a coil (16) on a stator iron core (15) generates a magnetic field because current flows through the coil, a permanent magnet (18) on a rotor iron core (17) rotates under the action of the magnetic field of an electromagnetic field, so that the rotor iron core (17) starts to rotate, a rotating shaft (4) starts to rotate, the rotating shaft (4) drives a heat dissipation fan (19) to rotate simultaneously, and further the heat generated by the device is dissipated, a heat dissipation sheet (5) on a shell (8) can also dissipate the heat, the heat generated in the motor is transferred to cooling oil in a circulation cavity (12) through a heat conduction ring (14), and the cooling oil after absorbing the heat is pumped into a liquid storage tank (23) through a liquid inlet pipe (9) 21) When cooling oil flows through the radiating pipe (22), air blown by the radiating fan (19) can cool the cooling oil, the cooled cooling oil flows back to the circulating cavity (12) through the liquid outlet pipe (10) to be circularly cooled, the arrangement enables the cooling efficiency of the motor to be greatly improved, the temperature of the motor to be prevented from being overhigh, the normal work of the motor is ensured, when the temperature of the external environment is lower, the heating function of the electric heating wire (20) is started, the cooling oil entering the liquid storage tank (21) is heated and heated, the heated cooling oil flows back to the circulating cavity (12) through the liquid outlet pipe (10), the temperature of the motor is increased through the heat transfer of the heat conducting ring (14), the temperature of the motor is kept constant, and the permanent magnet (18) is prevented from being demagnetized due to large temperature change of the motor, the temperature in the motor can be accurately measured through the first temperature sensor (24), and then cooling or heating treatment can be carried out on the motor.

2. A permanent magnet motor according to claim 1, wherein: comprises a base (1), a bolt seat (2) and a shell (8), wherein the shell (8) is arranged on the upper side of the base (1), the bolt seat (2) is arranged on two sides of the base (1), a radiating fin (5) is arranged on the outer side of the shell (8), an end cover (3) is arranged at one end of the shell (8), a junction box (6) is arranged on the upper side of the shell (8), a wiring hole (7) is arranged on one side of the junction box (6), a liquid inlet pipe (9) is arranged on one side of the shell (8) far away from the junction box (6), a micro pump (23) is arranged at one end of the liquid inlet pipe (9) far away from the shell (8), a liquid storage tank (21) is arranged on one side of the micro pump (23) far away from the liquid inlet pipe (9), a radiating cover (11) is arranged on the lower side of the, the improved heating device is characterized in that a radiating pipe (22) is arranged at the center of the liquid storage box (21), a heating wire (20) is arranged at the inner lower side of the liquid storage box (21), a liquid outlet pipe (10) is arranged at the lower side of the liquid storage box (21), the liquid outlet pipe (10) is connected with the liquid storage box (21) through threads, a display screen (25) is arranged at the outer side of the liquid storage box (21), a temperature sensor (26) is arranged on one side of the display screen (25), the temperature sensor (26) is connected with the liquid storage box (21) through a clamping groove, the type of the temperature sensor (26) is WDKTCGQ, a circulating cavity (12) is arranged in the shell (8), a heat conducting ring (14) is arranged in the circulating cavity (12), a supporting rod (13) is arranged at the outer side of the heat conducting ring (14), a stator core (15) is arranged at the inner side of the heat conducting ring, be provided with rotor core (17) in coil (16), rotor core (17) outside is provided with permanent magnet (18), rotor core (17) center is provided with pivot (4), be close to in shell (8) bracing piece (13) one side is provided with temperature sensor (24) No. one, base (1) downside is provided with shock pad (27).