CN219498940U - Mechanism for realizing automatic power-off aiming at overheat fault of permanent magnet motor - Google Patents
Mechanism for realizing automatic power-off aiming at overheat fault of permanent magnet motor Download PDFInfo
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- CN219498940U CN219498940U CN202320311012.0U CN202320311012U CN219498940U CN 219498940 U CN219498940 U CN 219498940U CN 202320311012 U CN202320311012 U CN 202320311012U CN 219498940 U CN219498940 U CN 219498940U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The utility model discloses a mechanism for realizing automatic power failure aiming at overheat faults of a permanent magnet motor, which relates to the technical field of permanent magnet motors and comprises a base, a power failure structure and an exhaust structure, wherein a main body is arranged at the top end of the base, a main shaft is arranged on one side of the inside of the main body through a rotating shaft, ventilation pipes are arranged at the upper end and the lower end of one side of the main body, one end of each ventilation pipe extends to one side of the inside of the main body, the exhaust structure is positioned at one side, close to the ventilation pipes, of the upper end and the lower end of the inside of the main body, a permanent magnet rotor is arranged on the outer wall of the main shaft inside the main body, a stator iron core is arranged on the inner wall of the main body, and a stator winding is arranged on the inner wall of the stator iron core. According to the utility model, the push rod is driven by the magnetic block, so that the push rod drives the second conducting strip, the fixed spring stretches, the second conducting strip is far away from the first conducting strip, and the motor power supply is disconnected.
Description
Technical Field
The utility model relates to the technical field of permanent magnet motors, in particular to a mechanism for realizing automatic power failure aiming at overheat faults of a permanent magnet motor.
Background
The permanent magnet motor is a direct current motor with a designated stator being a permanent magnet, only a rotor being a coil, and a stator of a common motor being a coil, wherein the magnetic field of the permanent magnet motor can be maintained without external energy after the permanent magnet motor is manufactured, the common motor needs current to be introduced to have the magnetic field, a permanent magnet magnetic pole is arranged on the rotor of the permanent magnet motor, and an exciting coil is arranged on the rotor of the common motor, so that a large amount of heat is easily generated in the working process of the permanent magnet motor, and the internal temperature is high, thereby causing faults.
Therefore, a mechanism for realizing automatic power-off aiming at overheat faults of the permanent magnet motor is needed, and the automatic power-off is realized under the overheat condition, so that the temperature inside the permanent magnet motor is controllable, and the fault condition caused by overhigh heat is avoided.
Disclosure of Invention
The utility model aims to provide a mechanism for realizing automatic power-off aiming at overheat faults of a permanent magnet motor, so as to solve the problem that the inside temperature of the motor is too high and faults are easy to occur in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the mechanism for realizing automatic power-off for overheat faults of the permanent magnet motor comprises a base, a power-off structure and an exhaust structure;
the top end of the base is provided with a main body, one side of the inside of the main body is provided with a main shaft through a rotating shaft, the upper end and the lower end of one side of the main body are provided with ventilation pipes, one ends of the ventilation pipes extend to one side of the inside of the main body, and the air exhaust structure is positioned at one side of the upper end and the lower end of the inside of the main body, which is close to the ventilation pipes;
permanent magnet rotor is installed to the outer wall of main part inside main shaft, and stator core is installed to the inner wall of main part, and stator winding is installed to stator core's inner wall, temperature sensor is all installed at the upper and lower both ends that the ventilation pipe one side was kept away from to the inside of main part, and outage structure is located the inside of base.
Preferably, the outage structure includes the cavity, the cavity is seted up in the inside of base, and the mounting groove is all installed to the both sides of the inside bottom of cavity, the electro-magnet is all installed to the inside bottom of mounting groove inside, and the inside of electro-magnet top mounting groove all transversely installs the limiting plate, the inside of limiting plate top mounting groove all is provided with the magnetic path, and the push rod is all installed on the top of magnetic path, the outer wall of the inside push rod of mounting groove all overlaps and is equipped with fixed spring, and the second conducting strip is all installed on the top of push rod, the second connecting wire is all installed to one side that the second conducting strip kept away from each other, and the first conducting strip is all installed to the both sides on the inside top of cavity, first connecting wire is all installed on the top of first conducting strip.
Preferably, one end of the main shaft passes through the main body, and one end of the main shaft extends to the outside of the main body.
Preferably, the top ends of the push rods all penetrate through the mounting grooves to extend to the inside of the cavity, and one ends of the second connecting wires all extend to the inside of the base.
Preferably, the top ends of the first connecting wires sequentially penetrate through the base and the main body, and the first connecting wires are communicated with the stator core.
Preferably, the exhaust structure comprises a driving gear, a fixed plate, a driven gear, a driven rotating rod and fan blades, wherein the driving gear is arranged on the outer wall of a main shaft on one side of a stator core, the fixed plate is arranged on one side of the upper end and the lower end of the inside of the main body, the driven rotating rod is arranged on one side, close to the ventilating pipe, of the fixed plate through a rotating shaft, the driven gear is arranged on the outer wall of the driven rotating rod, and the fan blades are arranged at one end of the driven rotating rod.
Preferably, the driven gears are located at the upper end and the lower end of the driving gear, and the driven gears are meshed with the driving gear.
Compared with the prior art, the utility model has the beneficial effects that: can produce the magnetic attraction to the magnetic path through the electro-magnet, make the magnetic path at the inside downwardly moving of mounting groove, drive the push rod through the magnetic path, make the push rod drive the second conducting strip, and make fixed spring tensile, make second conducting strip keep away from with first conducting strip, disconnect motor power, and inside temperature is normal back, the electro-magnet outage, under fixed spring's reaction force, make the magnetic path upwards move in the inside of mounting groove, drive the push rod through the magnetic path, make the push rod drive the second conducting strip, make the second conducting strip contact with first conducting strip again, connect the power of motor again, automatic power-off when this structure has realized the motor overheated, prevent that the high temperature from leading to motor trouble.
Drawings
FIG. 1 is a schematic view of a front cross-sectional structure of the present utility model;
FIG. 2 is a schematic diagram of a front view structure of the present utility model;
FIG. 3 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;
fig. 4 is an enlarged schematic view of the structure of fig. 1B according to the present utility model.
In the figure: 1. a base; 2. a main body; 3. a temperature sensor; 4. a main shaft; 5. a permanent magnet rotor; 6. a stator core; 7. a stator winding; 8. a ventilation pipe; 9. an exhaust structure; 901. a drive gear; 902. a fixing plate; 903. a driven gear; 904. a driven rotating rod; 905. a fan blade; 10. a cavity; 11. a mounting groove; 12. an electromagnet; 13. a magnetic block; 14. a push rod; 15. a first conductive sheet; 16. a first connecting wire; 17. a second connecting wire; 18. a second conductive sheet; 19. a fixed spring; 20. and a limiting plate.
Description of the embodiments
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1: referring to fig. 1-4, a mechanism for realizing automatic power-off for overheat faults of a permanent magnet motor comprises a base 1, a power-off structure and an exhaust structure 9;
the main body 2 is arranged at the top end of the base 1, the main shaft 4 is arranged on one side of the inside of the main body 2 through a rotating shaft, one end of the main shaft 4 penetrates through the main body 2, one end of the main shaft 4 extends to the outside of the main body 2, the ventilation pipes 8 are arranged at the upper end and the lower end of one side of the main body 2, one end of each ventilation pipe 8 extends to one side of the inside of the main body 2, and the air exhaust structure 9 is positioned on one side, close to the ventilation pipes 8, of the upper end and the lower end of the inside of the main body 2;
the permanent magnet rotor 5 is installed on the outer wall of the main shaft 4 in the main body 2, the stator core 6 is installed on the inner wall of the main body 2, the stator winding 7 is installed on the inner wall of the stator core 6, the temperature sensors 3 are installed at the upper end and the lower end of one side, far away from the ventilation pipe 8, of the main body 2, and the power-off structure is located in the base 1;
referring to fig. 1-4, a mechanism for implementing automatic power failure against overheat fault of a permanent magnet motor further includes a power failure structure, the power failure structure includes a cavity 10, the cavity 10 is opened in the interior of the base 1, and both sides of the bottom end in the cavity 10 are respectively provided with a mounting groove 11, the bottom end in the mounting groove 11 is respectively provided with an electromagnet 12, and the interior of the mounting groove 11 above the electromagnet 12 is respectively provided with a limiting plate 20, the interior of the mounting groove 11 above the limiting plate 20 is respectively provided with a magnetic block 13, the top end of the magnetic block 13 is respectively provided with a push rod 14, the outer wall of the push rod 14 in the mounting groove 11 is respectively sleeved with a fixed spring 19, the top ends of the push rods 14 are respectively provided with a second conducting strip 18, one side, which is far away from each other, of the second conducting strips 18 is respectively provided with a second connecting wire 17, both sides of the top end in the cavity 10 are respectively provided with a first conducting strip 15, and the top end of the first conducting strip 15 is respectively provided with a first connecting wire 16;
the top ends of the push rods 14 all penetrate through the mounting grooves 11 to extend into the cavity 10, and one ends of the second connecting wires 17 all extend into the base 1;
the top ends of the first connecting wires 16 sequentially penetrate through the base 1 and the main body 2, and the first connecting wires 16 are communicated with the stator core 6;
specifically, as shown in fig. 1, 2 and 3, when the mechanism is used, the magnetic block 13 drives the push rod 14, so that the push rod 14 drives the second conductive sheet 18, and the fixing spring 19 stretches, so that the second conductive sheet 18 is far away from the first conductive sheet 15, and the motor power supply is disconnected.
Example 2: the exhaust structure 9 comprises a driving gear 901, a fixed plate 902, a driven gear 903, a driven rotating rod 904 and fan blades 905, wherein the driving gear 901 is arranged on the outer wall of a main shaft 4 at one side of a stator core 6, the fixed plate 902 is arranged on one side of the upper end and the lower end of the inside of the main body 2, the driven rotating rod 904 is arranged on one side of the fixed plate 902, which is close to a ventilation pipe 8, through a rotating shaft, the driven gear 903 is arranged on the outer wall of the driven rotating rod 904, and the fan blades 905 are arranged at one end of the driven rotating rod 904;
the driven gears 903 are positioned at the upper end and the lower end of the driving gear 901, and the driven gears 903 are meshed with the driving gear 901;
specifically, as shown in fig. 1, 2 and 4, when the mechanism is used, the driving gear 901 can drive the driven gear 903 to rotate, the driven gear 903 drives the driven rotating rod 904 to rotate, the driven rotating rod 904 drives the fan blades 905 to rotate, and the fan blades 905 at the upper end and the lower end have different rotation directions, so that one fan blade 905 discharges the internal hot air through the ventilation pipe 8, and the other fan blade 905 sucks the external cold air into the main body 2 to complete ventilation.
Working principle: in the process of operating the motor, the main shaft 4 rotates, the driving gear 901 is driven to rotate through the main shaft 4, and as the driving gear 901 and the driven gear 903 are meshed with each other, in the process of rotating the driving gear 901, the driving gear 901 can drive the driven gear 903 to rotate, the driven rotating rod 904 is driven to rotate through the driven gear 903, the fan blades 905 are driven to rotate through the driven rotating rod 904, and the rotating directions of the fan blades 905 at the upper end and the lower end are different, so that one fan blade 905 discharges internal hot air through the ventilation pipe 8, and the other fan blade 905 sucks external cold air into the main body 2 to complete ventilation;
when the temperature sensor 3 detects that the temperature inside the main body 2 is too high, the controller receives a signal, the electromagnet 12 is electrified, the electromagnet 12 generates magnetic force, the electromagnet 12 and the magnetic block 13 have opposite relative magnetic poles, so that the magnetic block 13 can generate magnetic attraction force, the magnetic block 13 moves downwards inside the mounting groove 11, the magnetic block 13 drives the push rod 14, the push rod 14 drives the second conducting plate 18, the fixed spring 19 stretches, the second conducting plate 18 is far away from the first conducting plate 15, the motor power supply is disconnected, after the temperature inside the motor is normal, the electromagnet 12 is powered off, the magnetic block 13 moves upwards inside the mounting groove 11 under the reaction force of the fixed spring 19, the magnetic block 13 drives the push rod 14, the push rod 14 drives the second conducting plate 18, the second conducting plate 18 contacts with the first conducting plate 15 again, and the power supply of the motor is connected again.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. The utility model provides a mechanism to overheated trouble realization automatic power-off of permanent magnet machine, includes base (1), its characterized in that: the device also comprises a power-off structure and an exhaust structure (9);
the top end of the base (1) is provided with a main body (2), one side of the inside of the main body (2) is provided with a main shaft (4) through a rotating shaft, the upper end and the lower end of one side of the main body (2) are provided with ventilation pipes (8), one ends of the ventilation pipes (8) extend to one side of the inside of the main body (2), and the exhaust structure (9) is positioned at one side, close to the ventilation pipes (8), of the upper end and the lower end of the inside of the main body (2);
permanent magnet rotor (5) are installed to the outer wall of main shaft (4) in main part (2), and stator core (6) are installed to the inner wall of main part (2), and stator winding (7) are installed to the inner wall of stator core (6), temperature sensor (3) are all installed at the upper and lower both ends that ventilation pipe (8) one side was kept away from to main part (2) inside, and outage structure is located the inside of base (1).
2. The mechanism for achieving automatic power failure for a permanent magnet motor overheat fault according to claim 1, wherein: the outage structure includes cavity (10), cavity (10) are seted up in the inside of base (1), and mounting groove (11) are all installed to the both sides of cavity (10) inside bottom, electro-magnet (12) are all installed to the inside bottom of mounting groove (11), and all transversely install limiting plate (20) in the inside of electro-magnet (12) top mounting groove (11), the inside of limiting plate (20) top mounting groove (11) all is provided with magnetic path (13), and push rod (14) are all installed on the top of magnetic path (13), the outer wall of the inside push rod (14) of mounting groove (11) all overlaps and is equipped with fixed spring (19), and second conducting strip (18) are all installed on the top of push rod (14), second connecting wire (17) are all installed on one side that second conducting strip (18) kept away from each other, and first conducting strip (15) are all installed on the both sides on the inside top of cavity (10), first connecting wire (16) are all installed on the top of first conducting strip (15).
3. The mechanism for achieving automatic power failure for a permanent magnet motor overheat fault according to claim 1, wherein: one end of the main shaft (4) passes through the main body (2), and one end of the main shaft (4) extends to the outside of the main body (2).
4. The mechanism for achieving automatic power failure for overheat faults of permanent magnet motors according to claim 2, wherein: the top ends of the push rods (14) penetrate through the mounting grooves (11) and extend to the inside of the cavity (10), and one ends of the second connecting wires (17) extend to the inside of the base (1).
5. The mechanism for achieving automatic power failure for overheat faults of permanent magnet motors according to claim 2, wherein: the top ends of the first connecting wires (16) sequentially penetrate through the base (1) and the main body (2), and the first connecting wires (16) are communicated with the stator core (6).
6. The mechanism for achieving automatic power failure for a permanent magnet motor overheat fault according to claim 1, wherein: the exhaust structure (9) comprises a driving gear (901), a fixed plate (902), a driven gear (903), a driven rotating rod (904) and fan blades (905), wherein the driving gear (901) is arranged on the outer wall of a main shaft (4) on one side of a stator core (6), the fixed plate (902) is arranged on one side of the upper end and the lower end of the inside of a main body (2), the driven rotating rod (904) is arranged on one side, close to a ventilation pipe (8), of the fixed plate (902) through a rotating shaft, the driven gear (903) is arranged on the outer wall of the driven rotating rod (904), and the fan blades (905) are arranged at one end of the driven rotating rod (904).
7. The mechanism for achieving automatic power failure for a permanent magnet motor overheat fault according to claim 6, wherein: the driven gears (903) are respectively positioned at the upper end and the lower end of the driving gear (901), and the driven gears (903) are respectively meshed with the driving gear (901).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320311012.0U CN219498940U (en) | 2023-02-24 | 2023-02-24 | Mechanism for realizing automatic power-off aiming at overheat fault of permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320311012.0U CN219498940U (en) | 2023-02-24 | 2023-02-24 | Mechanism for realizing automatic power-off aiming at overheat fault of permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219498940U true CN219498940U (en) | 2023-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320311012.0U Active CN219498940U (en) | 2023-02-24 | 2023-02-24 | Mechanism for realizing automatic power-off aiming at overheat fault of permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219498940U (en) |
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2023
- 2023-02-24 CN CN202320311012.0U patent/CN219498940U/en active Active
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