Self-heat-dissipation rare earth permanent magnet synchronous motor
Technical Field
The invention relates to the technical field of alternating current motors, in particular to a self-heat-dissipation rare earth permanent magnet synchronous motor.
Background
The alternating current permanent magnet synchronous motor attracts more and more attention due to a series of advantages of small volume, light weight, high efficiency, energy conservation and the like, and the rare earth permanent magnet synchronous motor has stronger starting torque and overload capacity than the common synchronous motor, and is widely applied to industrial production.
When the rare earth permanent magnet synchronous motor is used, most of outside air enters the motor through a gap formed between the motor cabin and the front cover and the rear cover to cool the interior of the motor, but the size of the gap between the motor cabin and the front cover and the rear cover are limited, and the self-heat-dissipation effect of the rare earth permanent magnet synchronous motor cannot be improved because only one group of fans are arranged on a motor shaft in the conventional synchronous motor; the conventional rare earth permanent magnet synchronous motor usually radiates heat through the matching of an internal fan and an iron radiating fin on the outer side of the machine cabin, but most of the conventional radiating fins are directly welded on the outer side of the machine cabin, so that the effect of the radiating fin is greatly reduced, and the radiating effect of the synchronous motor cannot be further improved; the conventional rare earth permanent magnet synchronous motor is provided with gaps and through holes deliberately in order to facilitate air to flow in the motor, so that although the air flows conveniently, when the motor is not used, dust in the external environment slowly enters the interior of the machine cabin along with the air flow and covers components in the motor, thereby influencing the actual effect of the subsequent use of the motor; simultaneously current tombarthite PMSM's preceding cover and back cover all pass through multiunit fixed screw and quick-witted storehouse fixed connection, and it is very inconvenient when dismantling the installation, also can't further improve around the steadiness that cover and quick-witted storehouse are connected.
Disclosure of Invention
The present invention is directed to a self-cooling rare earth permanent magnet synchronous motor to solve the above-mentioned problems.
In order to achieve the purpose, the invention provides the following technical scheme: a self-radiating rare earth permanent magnet synchronous motor comprises a motor cabin, wherein a front cover and a rear cover are respectively arranged at two ends of the motor cabin, a filter assembly is arranged at one end, far away from the motor cabin, of the outer side of the front cover, a bearing B is arranged at the central position of one end, far away from the motor cabin, of the front cover, a connecting rod is uniformly arranged at one end, far away from the front cover, of the inner side wall of the motor cabin, a bearing A is commonly arranged at one end, close to each other, of the connecting rod, a motor shaft is commonly arranged at the inner sides of the bearing A and the bearing B, a rotor is arranged at the middle position of the outer side of the motor shaft, a stator winding mutually matched with the rotor is arranged on the inner side wall of the motor cabin, fans are symmetrically arranged at two ends of the outer side of the motor shaft, one end, close to the front cover, of the motor shaft extends to the outer side of the front cover, radiating fins A are uniformly arranged on the outer side of the motor cabin, and the inner sides of the radiating fins A penetrate through the motor cabin to be connected with the outer ring of the stator winding, an annular heat conducting fin is arranged at one end, far away from the front machine cover, of the inner side of the machine cabin, the outer ring part of the annular heat conducting fin extends to the outer side of the machine cabin and is uniformly provided with cooling fins B, through holes are uniformly formed in the surface of the annular heat conducting fin, auxiliary assemblies are symmetrically and uniformly arranged at two ends of the outer side of the machine cabin, an air inlet adjusting assembly is arranged at the outer side of the rear machine cover, two groups of fixing assemblies are symmetrically arranged at two sides of the machine cabin, and a wiring disc is arranged at the top of the machine cabin;
the fixing assembly comprises bolts, slots, mounting blocks, mounting plates, springs, spring grooves, insertion rods, pin grooves and pins, two groups of slots are symmetrically arranged on two sides of the machine bin, the spring grooves are symmetrically formed in the middle positions of the tops of the slots, the springs are arranged at the inner bottoms of the spring grooves, the mounting plates are jointly arranged at the top ends of the springs, the bolts are arranged on the central positions of the tops of the mounting plates in a threaded mode, three groups of pins are symmetrically arranged at two ends of the bottom of the mounting plates, two groups of mounting blocks are symmetrically arranged on two sides of the front machine cover and the rear machine cover, the insertion rods matched with the slots are arranged at one ends, close to the machine bin, of the mounting blocks, and three groups of pin grooves matched with the pins are uniformly formed in one end, close to the mounting blocks, of the tops of the insertion rods;
the air inlet adjusting assembly comprises an outer sleeve cover, strip-shaped through holes, clamping blocks, clamping grooves, a sliding ring groove and a filter screen A, wherein the sliding ring groove is formed in one end, close to the machine bin, of the outer side of the rear cover, the sliding ring is arranged on the inner side of the sliding ring groove, the outer sleeve cover is arranged on the outer side of the sliding ring, the strip-shaped through holes are uniformly formed in the outer sides of the rear cover and the outer sleeve cover, the filter screen A is arranged on the inner side of the strip-shaped through holes, two groups of clamping grooves are formed in one end, close to the machine bin, of the outer side of the rear cover, and the clamping blocks matched with the clamping grooves are arranged at one end, close to the machine bin, of the outer sleeve cover;
the auxiliary assembly includes U type card frame, concatenation strip A, concatenation strip B and pivot, the both ends symmetry in the machine storehouse outside evenly is provided with four groups of concatenation strip A, and the one side that concatenation strip A is close to machine storehouse one end is provided with the pivot, the one end symmetry that preceding cover and back cover outside are close to the machine storehouse evenly is provided with four groups and the concatenation strip A concatenation strip B of mutually supporting, the outside of pivot is provided with the U type card frame of mutually supporting with concatenation strip A and concatenation strip B.
Preferably, the filtering component comprises a through groove A, a filtering net B, an internal thread ring and a through groove B, the through groove B is uniformly formed in one end of the machine bin far away from the outer side of the front machine cover, the internal thread ring is arranged at one end of the machine bin far away from the outer side of the front machine cover, the through groove A matched with the through groove B is uniformly formed in the outer side of the internal thread ring, and the filtering net B is arranged on the inner side of the internal thread ring.
Preferably, the splicing strips A and B are identical in shape and size, and the inner side of the U-shaped clamping frame is provided with a wear-resistant layer.
Preferably, the one end symmetry that preceding cover and back cover are close to each other is provided with the concatenation ring, the both ends symmetry in machine storehouse sets up and is provided with the concatenation groove of mutually supporting with the concatenation ring.
Preferably, the top of the U-shaped clamping frame, which is far away from one end of the rotating shaft, is provided with a buckling plate, and the surface of the buckling plate is provided with a rubber layer.
Preferably, the bottom outside the machine cabin is provided with a fixing seat, and four corners of the top of the fixing seat are symmetrically provided with fixing holes.
Preferably, the screw thread matched with the mounting block is arranged at one end, far away from the machine cabin, of the outer side of the front machine cover.
Compared with the prior art, the invention provides a self-radiating rare earth permanent magnet synchronous motor, which has the following beneficial effects:
1. according to the invention, the sizes of the air inlet and the air outlet of the motor can be further improved by matching the front cover, the through groove B, the strip-shaped through hole, the rear cover and the fans, so that the volume and the speed of the outside air entering and exiting the motor are increased, and the volume and the speed of the air flowing in the motor cabin are greatly increased by matching the two groups of fans at the two ends in the motor, so that the self-heat dissipation effect of the rare earth permanent magnet synchronous motor is improved, and the long-time rotation of the rare earth permanent magnet synchronous motor is facilitated.
2. According to the invention, through the machine bin, the radiating fins A, the annular heat conducting fins, the radiating fins B and the fan, and the through holes are matched with the structure for increasing the radiating effect, heat generated in the working process of the stator winding can be directly transmitted to the plurality of groups of radiating fins A, the radiating effect of the motor can be effectively improved by matching with the radiating of the machine bin, the annular heat conducting fins can absorb part of heat in the passing air and transmit the heat to the radiating fins B, the radiating area is increased, the radiating effect of the annular heat conducting fins is improved, and the radiating effect of the motor is also improved, so that the self-radiating capacity of the motor in the rotating process is greatly improved, and the service life of the motor is prolonged.
3. According to the invention, through the matched use of the front cover, the machine bin, the air inlet adjusting component, the filtering component and the rear cover, the motor can be unused, the through groove A and the through groove B are staggered by manually rotating the internal thread ring and the outer cover for a certain angle, and the strip-shaped through holes on the outer sides of the outer cover and the rear cover are also staggered mutually, so that the hot rare earth permanent magnet synchronous motor is in a closed state, external dust can be greatly prevented from entering the interior of the machine bin along with the air flow and being attached to the components in the machine bin, the subsequent use effect of the motor is greatly ensured, and the moisture of the external air can be prevented from entering the interior of the motor to a certain extent, so that the motor has better protection capability.
4. According to the invention, through the matched use of the front cover, the machine bin, the auxiliary assembly, the fixing assembly and the rear cover, when the motor is disassembled for maintenance, the front cover and the rear cover can be disassembled from two ends of the machine bin only by unscrewing four groups of bolts and then manually pulling open four groups of U-shaped clamping frames, excessive fixing screws do not need to be disassembled, and when the front cover and the rear cover are installed, the front cover and the rear cover do not need to be manually supported to keep the screws and the screw holes aligned, the insertion rod only needs to be inserted into the slot, and the splicing strip A and the splicing strip B are fixed through the U-shaped clamping frames, so that the bolts can be freely screwed down, the convenience of disassembling or assembling the motor is greatly improved, and the stability of the connection of the front cover and the rear cover with the machine bin can be further improved by the auxiliary assembly.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a front cross-sectional view of the present invention;
FIG. 3 is a cross-sectional exploded view of the present invention;
FIG. 4 is a side view of the front mount cover of the present invention;
FIG. 5 is a cross-sectional view of a socket of the present invention;
FIG. 6 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;
FIG. 7 is an enlarged view of FIG. 2 at B.
In the figure: 1. a motor shaft; 2. a front machine cover; 3. a machine cabin; 4. a heat sink A; 5. a patch panel; 6. an air inlet adjusting component; 601. an outer sleeve cover; 602. a strip-shaped through hole; 603. a clamping block; 604. a card slot; 605. a slip ring; 606. a slip ring groove; 607. a filter screen A; 7. an auxiliary component; 701. a U-shaped clamping frame; 702. splicing strips A; 703. splicing strips B; 704. a rotating shaft; 8. an annular heat conducting fin; 9. a heat sink B; 10. a fixing assembly; 101. a bolt; 102. a slot; 103. mounting blocks; 104. mounting a plate; 105. a spring; 106. a spring slot; 107. inserting a rod; 108. a pin slot; 109. a bolt; 11. a filter assembly; 111. a through groove A; 112. a filter screen B; 113. an internally threaded ring; 114. a through groove B; 12. a rear machine cover; 13. a bearing A; 14. a connecting rod; 15. a rotor; 16. a stator winding; 17. a fixed seat; 18. a bearing B; 19. a fan; 20. and a through hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution: a self-heat-dissipation rare earth permanent magnet synchronous motor comprises a motor cabin 3, two ends of the motor cabin 3 are respectively provided with a front motor cover 2 and a rear motor cover 12, one ends of the front motor cover 2 and the rear motor cover 12, which are close to each other, are symmetrically provided with splicing rings, two ends of the motor cabin 3 are symmetrically provided with splicing grooves matched with the splicing rings, the bottom of the outer side of the motor cabin 3 is provided with a fixed seat 17, four corners of the top of the fixed seat 17 are symmetrically provided with fixed holes, one end of the outer side of the front motor cover 2, which is far away from the motor cabin 3, is provided with a filtering component 11, the filtering component 11 comprises a through groove A111, a filtering net B112, an internal thread ring 113 and a through groove B114, one end of the outer side of the front motor cover 2, which is far away from the motor cabin 3, a through groove A111 matched with the through groove B114 is uniformly arranged on the outer side of the internal thread ring 113, and a filtering net B112 is arranged on the inner side of the internal thread ring 113, the air entering the interior of the machine cabin 3 is filtered, and a large amount of dust is prevented from being attached to components inside the machine cabin 3;
the center position of the end of the front machine cover 2 far away from the machine cabin 3 is provided with a bearing B18, the end of the inner side wall of the machine cabin 3 far away from the front machine cover 2 is uniformly provided with a connecting rod 14, the end of the connecting rod 14 close to each other is commonly provided with a bearing A13, the inner sides of the bearing A13 and the bearing B18 are commonly provided with a motor shaft 1, the middle position of the outer side of the motor shaft 1 is provided with a rotor 15, the inner side wall of the machine cabin 3 is provided with a stator winding 16 matched with the rotor 15, two ends of the outer side of the motor shaft 1 are symmetrically provided with fans 19, the end of the motor shaft 1 close to the front machine cover 2 extends to the outer side of the front machine cover 2, the outer side of the machine cabin 3 is uniformly provided with cooling fins A4, the inner side of the cooling fins A4 penetrates through the machine cabin 3 to be connected with the outer ring part of the stator winding 16, the end of the inner side of the machine cabin 3 far away from the front machine cover 2 is provided with an annular heat conducting fin 8, the outer ring part of the annular heat conducting fin 8 extends to the outer side of the machine cabin 3 and is uniformly provided with cooling fins B9, through holes 20 are uniformly formed in the surface of the annular heat conducting strip 8;
two ends of the outer side of the machine cabin 3 are symmetrically and uniformly provided with auxiliary components 7, each auxiliary component 7 comprises a U-shaped clamping frame 701, a splicing strip A702, a splicing strip B703 and a rotating shaft 704, four groups of splicing strips A702 are symmetrically and uniformly arranged at two ends of the outer side of the machine cabin 3, and one side of the splicing strip A702 close to one end of the machine bin 3 is provided with a rotating shaft 704, one end of the outer sides of the front machine cover 2 and the rear machine cover 12 close to the machine bin 3 is symmetrically and uniformly provided with four groups of splicing strips B703 mutually matched with the splicing strip A702, the outer side of the rotating shaft 704 is provided with a U-shaped clamping frame 701 mutually matched with the splicing strip A702 and the splicing strip B703, the shapes and the sizes of the splicing strips A702 and the splicing strips B703 are completely the same, the inner side of the U-shaped clamping frame 701 is provided with a wear-resistant layer, the top of one end of the U-shaped clamping frame 701 far away from the rotating shaft 704 is provided with a buckle plate, the rubber layer is arranged on the surface of the buckle plate, so that the connection stability of the front cover 2 and the rear cover 12 with the machine bin 3 is improved;
the outer side of the rear machine cover 12 is provided with an air inlet adjusting component 6, the air inlet adjusting component 6 comprises an outer sleeve cover 601, a strip-shaped through hole 602, a clamping block 603, a clamping groove 604, a slip ring 605, a slip ring groove 606 and a filter screen A607, one end of the outer side of the rear machine cover 12 close to the machine cabin 3 is provided with a slip ring groove 606, and the inner side of the slip ring groove 606 is provided with a slip ring 605, the outer side of the slip ring 605 is provided with an outer cover 601, the outer sides of the rear cover 12 and the outer cover 601 are both uniformly provided with strip-shaped through holes 602, a filter screen A607 is arranged at the inner side of the strip-shaped through hole 602, two groups of clamping grooves 604 are arranged at one end of the outer side of the rear cover 12 close to the machine bin 3, a clamping block 603 matched with the clamping grooves 604 is arranged at one end of the outer cover 601 close to the machine bin 3, the strip-shaped through hole 602 is manually closed or opened, so that the heat dissipation effect of the motor can be improved, and external dust can be prevented from entering the interior of the machine bin 3 when the motor is not used;
two groups of fixing assemblies 10 are symmetrically arranged on two sides of the machine cabin 3, each fixing assembly 10 comprises a bolt 101, a slot 102, a mounting block 103, a mounting plate 104, a spring 105, a spring groove 106, an inserted rod 107, a pin groove 108 and a pin 109, two groups of slots 102 are symmetrically arranged on two sides of the machine cabin 3, the spring groove 106 is symmetrically arranged at the middle position of the top of the slot 102, the spring 105 is arranged at the inner bottom of the spring groove 106, the mounting plate 104 is jointly arranged at the top end of the spring 105, the bolt 101 is arranged in a threaded manner at the central position of the top of the mounting plate 104, three groups of pins 109 are symmetrically arranged at two ends of the bottom of the mounting plate 104, two groups of mounting blocks 103 are symmetrically arranged on two sides of the front cover 2 and the rear cover 12, the inserted rod 107 matched with the slot 102 is arranged at one end of the mounting block 103 close to the machine cabin 3, and the threads matched with the mounting blocks 103 are arranged at one end of the outer side of the front cover 2 far away from the machine cabin 3, three sets of pin grooves 108 mutually matched with the bolt 109 are evenly seted up near the one end of keeping away from the installation piece 103 in inserted bar 107 top, are convenient for quick simultaneously with preceding cover 2 and back cover 12 and the both ends fixed connection in machine storehouse 3, and the top in machine storehouse 3 is provided with wiring dish 5.
Embodiment 1, as shown in fig. 1 to 3, when the external air needs to be sucked into the cabin 3, the through groove a111 and the through groove B114 can be overlapped by rotating the internal thread ring 113, so that the external air enters the cabin 3 through the through groove a111 and the through groove B114 after being filtered by the filter screen B112, and then the outer cover 601 is rotated, so that the outer cover 601 and the strip-shaped through hole 602 on the rear cover 12 are overlapped with each other, and the air inside the cabin 3 conveniently flows out to the external environment from the strip-shaped through hole 602.
Embodiment 2, as shown in fig. 1, 5 and 7, when the rare earth permanent magnet synchronous motor needs to be disassembled and overhauled, firstly, four groups of bolts 101 are unscrewed, the mounting plate 104 and the plurality of groups of bolts 109 are forced to rise due to the elastic restoring force of the spring 105, so that the bolts 109 leave the inside of the pin slot 108, then the plurality of groups of U-shaped clamping frames 701 are pulled open manually, then the front cover 2 and the rear cover 12 are pulled towards one end far away from the machine cabin 3, so that the inserting rods 107 on the front cover 2 and the rear cover 12 are gradually drawn out from the inside of the slot 102, thereby the disassembly of the front cover 2 and the rear cover 12 is completed, and then the front cover 2 and the rear cover 12 are fixedly installed again after the inside of the motor is overhauled.
Embodiment 3, as shown in fig. 2, 3, 4, 6 and 7, when the rare earth permanent magnet synchronous motor is in use, the motor shaft 1 drives two sets of fans 19 to rotate, during the operation of the motor, the rotor 15 and the stator winding 16 gradually generate a great deal of heat, the heat outside the stator winding 16 is gradually transferred to the plurality of groups of radiating fins a4, the part of the radiating fin A4 exposed out of the machine cabin 3 improves the radiating area and the radiating effect, the fan 19 rotates to make the outside air enter the machine cabin 3 from the through groove A111, then the surfaces of the rotor 15 and the stator winding 16 are cooled by wind blowing, and when air with temperature passes through the annular heat conducting sheet 8, part of the heat is transferred to the cooling fins B9 on the outer side of the machine cabin 3 through the annular heat conducting fins 8, so that the heat transferred by the annular heat conducting fins 8 is quickly dissipated, the air with heat flows out to the external environment through the strip-shaped through holes 602 on the surfaces of the rear cover 12 and the outer cover 601 in sequence.
The working principle is as follows: before use, the device is powered on through the wiring disc 5, when the rare earth permanent magnet synchronous motor is used, firstly, the internal thread ring 113 is manually rotated, the through groove A111 and the through groove B114 can be overlapped, so that external air is filtered by the filter screen B112 and then enters the interior of the machine cabin 3 through the through groove A111 and the through groove B114, then the outer sleeve cover 601 is rotated, the strip-shaped through holes 602 on the outer sleeve cover 601 and the rear machine cover 12 are overlapped, then the synchronous motor is opened through the external control panel, the motor shaft 1 is rotated to drive the two groups of fans 19 to rotate, in the working process of the motor, the rotor 15 and the stator winding 16 gradually generate a large amount of heat, the heat outside the stator winding 16 is gradually transmitted to the plurality of groups of radiating fins A4, the part exposed outside the machine cabin 3 through the radiating fins A4 improves the radiating area, the radiating effect is improved, the fans 19 are rotated to enable the external air to enter the interior of the machine cabin 3 from the through groove A111, then, the surfaces of the rotor 15 and the stator winding 16 are cooled by blowing, when air with temperature passes through the annular heat conducting fins 8, a part of heat is transferred to the heat radiating fins B9 on the outer side of the machine cabin 3 through the annular heat conducting fins 8, so that the heat transferred by the annular heat conducting fins 8 is rapidly dissipated, and then the air with heat sequentially passes through the strip-shaped through holes 602 on the surfaces of the rear machine cover 12 and the outer sleeve cover 601 and flows out to the external environment; when the synchronous motor needs to be overhauled, firstly, four groups of bolts 101 are unscrewed, the installation plate 104 and the multiple groups of bolts 109 are forced to rise due to the elastic restoring force of the spring 105, so that the bolts 109 leave the inside of the pin grooves 108, then the multiple groups of U-shaped clamping frames 701 are pulled open manually, then the front cover 2 and the rear cover 12 are pulled towards one end far away from the machine cabin 3, the inserting rods 107 on the front cover 2 and the rear cover 12 are gradually pulled out from the inside of the slots 102, the front cover 2 and the rear cover 12 are disassembled, and then the front cover 2 and the rear cover 12 are fixedly installed again after the inside of the motor is overhauled.
Finally, it should be noted that the above-mentioned contents are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, and that the simple modifications or equivalent substitutions of the technical solutions of the present invention by those of ordinary skill in the art can be made without departing from the spirit and scope of the technical solutions of the present invention.