CN117650643B - Energy-saving environment-friendly brushless direct current motor for dust collector - Google Patents
Energy-saving environment-friendly brushless direct current motor for dust collector Download PDFInfo
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- CN117650643B CN117650643B CN202410122151.8A CN202410122151A CN117650643B CN 117650643 B CN117650643 B CN 117650643B CN 202410122151 A CN202410122151 A CN 202410122151A CN 117650643 B CN117650643 B CN 117650643B
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- 239000000428 dust Substances 0.000 title claims abstract description 30
- 238000007789 sealing Methods 0.000 claims description 60
- 230000006978 adaptation Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2786—Outer rotors
- H02K1/2787—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/2789—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2791—Surface mounted magnets; Inset magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The application discloses energy-concerving and environment-protective brushless DC motor for dust catcher relates to brushless DC motor's technical field, and it includes casing, fixed stator that sets up in the casing and rotate the rotor that sets up in the casing, the one end opening setting of casing, the open end rotation of casing is provided with the disk cover, disk cover and the coaxial fixed connection of rotor, just disk cover and rotor all with casing clearance fit, the centre bore has been seted up on the stator, wear to be equipped with the pivot in the centre bore, the centre bore internal fixation of stator is provided with the bearing, the inner ring that the bearing was worn to locate in the pivot and with the inner ring fixed connection of bearing, just the central line of pivot and the central line collineation of stator, set up the first through-hole that is used for supplying the pivot to pass on the disk cover, be provided with the first fixed subassembly that is used for fixed pivot on the disk cover. The brushless direct current motor has the effect of reducing the heating value during operation.
Description
Technical Field
The application relates to the technical field of brushless direct current motors, in particular to an energy-saving environment-friendly brushless direct current motor for a dust collector.
Background
Brushless motor refers to a motor without brush and commutator, also called as a motor without commutator, mainly comprising a motor main body and a driver, and is a typical electromechanical integrated product; the brushless DC motor is one of synchronous motors, the rotating speed of a motor rotor of the brushless DC motor is mainly influenced by the speed of a rotating magnetic field of a motor stator and the number of poles of the rotor, compared with a brushless DC motor, the brushless DC motor has no electric brush, the friction force is greatly reduced during operation, the operation is smooth, the noise is much lower, and meanwhile, the brushless DC motor only needs to carry out simple maintenance such as dust cleaning at ordinary times, and the working state is stable; and because the brushless direct current motor operates in an automatic control mode, a starting winding is not additionally arranged on a rotor like a synchronous motor for heavy-load starting under variable-frequency speed regulation, and oscillation and step-out can not be generated when the load is suddenly changed.
At present, the brushless direct current motor used in the dust collector mainly comprises a shell, a stator fixedly arranged in the shell and a rotor rotatably arranged in the shell, and under the condition of long-time working of the brushless direct current motor, the rotor and the shell are rubbed with each other, so that the heat productivity of the motor is high, the normal working and the service life of the motor are affected, and the brushless direct current motor is seriously likely to burn.
Disclosure of Invention
In order to solve the problem of large heating value of the brushless direct current motor, the application provides an energy-saving environment-friendly brushless direct current motor for a dust collector.
The application provides an energy-concerving and environment-protective brushless DC motor for dust catcher adopts following technical scheme:
the utility model provides an energy-concerving and environment-protective brushless direct current motor for dust catcher, includes the casing, fixed stator and the rotation setting in the casing, the one end opening setting of casing, the open end rotation of casing is provided with the dish lid, the coaxial fixed connection of dish lid and rotor, just dish lid and rotor all with casing clearance fit, the centre bore has been seted up on the stator, wear to be equipped with the pivot in the centre bore, the centre bore internal fixation of stator is provided with the bearing, the inner ring of bearing and with the inner ring fixed connection of bearing are worn to locate to the pivot, just the central line of pivot and the central line collineation of stator, set up the first through-hole that is used for supplying the pivot to pass on the dish lid, be provided with the first fixed subassembly that is used for fixed pivot on the dish lid.
Through adopting above-mentioned technical scheme, with lid and rotor all with casing clearance fit to restrict the working position of lid and rotor through the pivot, brushless DC motor is at the during operation, all can not produce mutual friction between lid and the casing, and between rotor and the casing, and the pivot passes through the bearing to be connected with the stator, at the during operation, the interaction face between pivot and the stator is little, effectively reduces the calorific capacity of brushless DC motor during operation, and effectively reduces the consumption that brushless DC motor during operation brought because of frictional force, the energy saving.
Optionally, the first fixed subassembly includes first grafting piece and locating part, the holding groove has been seted up to the lateral wall of first through-hole, first grafting piece slides and sets up in the holding inslot, the lateral wall of pivot has been seted up and has been used for supplying first grafting piece male first grafting groove, the locating part is used for preventing first grafting piece slip.
Optionally, the locating part includes the spacing screw rod, the spacing screw rod rotates the setting in the accommodation groove and with first grafting piece screw-thread fit, coaxial fixed being provided with the transfer line on the spacing screw rod, the second through-hole with the accommodation groove intercommunication has been seted up along the slip direction of first grafting piece to the lateral wall of dish lid, the transfer line wears to locate the second through-hole and rotates with the dish lid to be connected, the screw driver groove has been seted up to the one end that the spacing screw rod was kept away from to the transfer line.
Optionally, the stator is detachably disposed on the housing, and a fixing member for fixing the stator is disposed on the housing.
Optionally, the mounting includes the end cover, the external screw thread has been seted up to the lateral wall of end cover, set up on the stator with the external screw thread looks adaptation on the end cover the screw thread groove, the mounting mouth with the inside intercommunication of casing is seted up to the lateral wall of casing, the mounting mouth is used for supplying the end cover to insert.
Optionally, the thread groove is offered along the axial of stator and is linked together with the centre bore, the standing groove with the centre bore intercommunication has been offered to the roof of thread groove, standing groove and bearing looks adaptation just are used for putting into the bearing, the end cover is used for compressing tightly the outer loop of bearing, fixed the being provided with the stopper on the standing groove lateral wall, the spacing groove has been offered along the axial of bearing on the outer loop of bearing, spacing groove and stopper looks adaptation.
Optionally, the bearing is detachably connected with the inner ring of the rotating shaft, and a second fixing component for fixing the rotating shaft is arranged on the inner ring of the bearing.
Through adopting above-mentioned technical scheme, can dismantle the bearing with the pivot and be connected, when bearing or pivot damage, be convenient for change bearing or pivot alone, practice thrift the cost.
Optionally, the second fixed subassembly includes sleeve, second grafting piece and swivel nut, the coaxial fixed setting of sleeve is on the inner ring of bearing, and is used for supplying the pivot to pass, the third through-hole that is used for supplying the second grafting piece to pass is seted up to telescopic lateral wall, the lateral wall of pivot has been seted up and is used for supplying the second grafting piece male second grafting groove, set up the external screw thread with swivel nut looks adaptation on the telescopic lateral wall, just the swivel nut is used for preventing that the second grafting piece breaks away from in the second grafting groove of pivot.
Optionally, the casing internal fixation is provided with first sealing ring, the one end coaxial fixed being provided with the second sealing ring that the disc lid is close to the casing, the interception groove has been seted up along the circumference of first sealing ring to the one end that the first sealing ring is close to the disc lid, the second sealing ring rotates and sets up in the interception groove, just clearance fit between second sealing ring and the first sealing ring.
Through adopting above-mentioned technical scheme, through setting up first sealing ring and second sealing ring to rotate the second sealing ring and set up in the interception groove on first sealing ring, brushless DC motor forms the clearance that intercepts between second sealing ring and the interception groove at the during operation, and the dust can circulate along the clearance between second sealing ring and the interception groove after getting into the interception groove, can produce the effect that intercepts at this in-process, and then separates the dust, effectively avoids the dust to get into in the casing.
Optionally, a plurality of spiral drainage blocks are all offered on the inside wall and the lateral wall of second sealing ring, just spiral drainage block on the second sealing ring inside wall is opposite with the spiral direction of spiral drainage block on the second sealing ring lateral wall, just the extending direction of spiral drainage block on the second sealing ring inside wall is opposite with the rotation direction of rotor.
Through adopting above-mentioned technical scheme, a plurality of spiral drainage pieces have all been seted up on the inside wall and the lateral wall of second sealing ring, and because the extending direction of spiral drainage piece on the second sealing ring inside wall is opposite with the direction of rotation of rotor, spiral drainage piece on the second sealing ring inside wall is opposite with the spiral direction of spiral drainage piece on the second sealing ring lateral wall, brushless DC motor is at the during operation, form the air current in the interception groove under the guide of spiral drainage piece on second sealing ring inside wall and the lateral wall, and the air current flows to the casing outside by the casing inside, further prevent in the dust gets into the casing, and, because the air current flows to the casing outside by the casing inside, can also discharge the casing with the inside part heat of casing, improve the radiating effect to the casing inside during operation of brushless DC motor.
In summary, the present application includes at least one of the following beneficial technical effects:
1. this application is through all with lid and rotor and casing clearance fit to restrict the working position of lid and rotor through the pivot, brushless DC motor all can not produce mutual friction between lid and the casing and between rotor and the casing at the during operation, and the pivot passes through the bearing to be connected with the stator, and at the during operation, the interaction surface between pivot and the stator is little, effectively reduces the calorific capacity of brushless DC motor during operation, and effectively reduces the consumption that brushless DC motor during operation brought because of frictional force, the energy saving.
2. This application is through setting up first sealing ring and second sealing ring to rotate the second sealing ring and set up in the interception groove on first sealing ring, brushless DC motor forms the clearance that intercepts between second sealing ring and the interception groove at the during operation, and the dust can follow the clearance circulation between second sealing ring and the interception groove after getting into the interception groove, can produce the effect that intercepts at this in-process, and then carries out the separation to the dust, effectively avoids the dust to get into in the casing.
3. The utility model provides a plurality of spiral drainage pieces have all been seted up through on the inside wall and the lateral wall of second sealing ring, and because the extending direction of spiral drainage piece on the inside wall of second sealing ring is contrary with the direction of rotation of rotor, spiral drainage piece on the inside wall of second sealing ring is opposite with the spiral direction of spiral drainage piece on the lateral wall of second sealing ring, brushless DC motor is at the during operation, form the air current in the interception inslot under the guide of spiral drainage piece on the inside wall of second sealing ring and the lateral wall, and the air current flows to the casing outside by the casing inside, further prevent in the dust gets into the casing, and, because the air current flows to the casing outside by the casing inside, can also discharge the casing with the inside some heat of casing, improve the radiating effect to the casing inside during operation of brushless DC motor.
Drawings
FIG. 1 is an exploded view of a structure of an embodiment of the present application;
FIG. 2 is a cross-sectional view of a structure of an embodiment of the present application;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is an enlarged view of portion B of FIG. 2;
FIG. 5 is a schematic diagram of a structure for expressing a second seal ring according to an embodiment of the present application.
Reference numerals illustrate: 1. a housing; 11. an end cap; 12. a mounting port; 13. a first seal ring; 131. a flow interception groove; 2. a stator; 21. a thread groove; 22. a central bore; 23. a placement groove; 24. a limiting block; 3. a rotor; 4. a tray cover; 41. a first through hole; 42. a first plug block; 43. a receiving groove; 44. a limit screw; 441. a transmission rod; 45. a second through hole; 46. positioning marks; 47. a second seal ring; 471. a spiral drainage block; 5. a rotating shaft; 51. a first socket groove; 52. a second insertion groove; 6. a bearing; 61. a limit groove; 62. a sleeve; 621. a third through hole; 63. a second plug block; 64. a screw sleeve.
Detailed Description
The present application is described in further detail below in conjunction with fig. 1-5.
The embodiment of the application discloses an energy-saving environment-friendly brushless direct current motor for a dust collector. Referring to fig. 1 and 2, the rotor comprises a shell 1, a stator 2 fixedly arranged in the shell 1, and a rotor 3 rotatably arranged in the shell 1, wherein the rotor 3 is sleeved on the periphery of the shell 1, one end of the shell 1 is provided with an opening, a disc cover 4 is coaxially and fixedly arranged on the rotor 3, the rotor 3 and the disc cover 4 are fixed through bolts, the disc cover 4 is positioned at the opening end of the shell 1, a rotating shaft 5 is coaxially and rotatably arranged on the stator 2, the rotating shaft 5 is fixedly connected with the disc cover 4 in a coaxial manner, and the disc cover 4 and the rotor 3 are in clearance fit with the shell 1.
Referring to fig. 2 and 3, a first through hole 41 for passing through the rotating shaft 5 is formed in the disc cover 4, the first through hole 41 is matched with the rotating shaft 5, a first fixing component for fixing the rotating shaft 5 is arranged on the disc cover 4, the first fixing component comprises a first plug-in block 42 and a limiting piece, a containing groove 43 is formed in the side wall of the first through hole 41, the first plug-in block 42 is slidably arranged in the containing groove 43, the sliding direction of the first plug-in block 42 is perpendicular to the central line of the disc cover 4, a first plug-in groove 51 for inserting the first plug-in block 42 is formed in the side wall of the rotating shaft 5, and the first plug-in groove 51 is matched with the first plug-in block 42.
Referring to fig. 2 and 3, the limiting member includes a limiting screw 44, the limiting screw 44 is rotatably disposed in the accommodating groove 43, and the axial direction of the limiting screw 44 is parallel to the sliding direction of the first plug-in block 42, the limiting screw 44 is in threaded engagement with the first plug-in block 42, a driving rod 441 is fixedly disposed at one end of the limiting screw 44 away from the first plug-in block 42, a second through hole 45 communicated with the accommodating groove 43 is disposed on the side wall of the tray cover 4 along the sliding direction of the first plug-in block 42, the driving rod 441 is disposed through the second through hole 45 and is rotatably connected with the tray cover 4, a screw cutter groove is disposed at one end of the driving rod 441 away from the limiting screw 44, when the brushless dc motor is assembled, the rotating shaft 5 passes through the first through hole 41 on the tray cover 4, and the first plug-in block 42 is opposite to the first plug-in groove 51 on the rotating shaft 5, and then the driving rod 441 to rotate by the screw cutter groove on the driving rod 441, and the driving the first plug-in block 42 to slide in the direction close to the direction of the rotating shaft 5, so that the rotating shaft 5 can be fixedly connected with the tray cover 5.
Referring to fig. 3, the disc cover 4 is provided with a pointing positioner 46, the side wall of the rotating shaft 5 is provided with a positioning line, the positioning line is provided with a marking point, and when the pointing positioner 46 on the disc cover 4 and the marking point on the rotating shaft 5 are positioned at the same position, the first plugging block 42 on the disc cover 4 is opposite to the first plugging groove 51 on the rotating shaft 5, so that the position of the first plugging groove 51 on the rotating shaft 5 is conveniently determined, and the disc cover 4 is conveniently installed.
Referring to fig. 2, a fixing part for fixing a stator 2 is provided on a housing 1, the fixing part comprises an end cover 11, an external thread is provided on a side wall of the end cover 11, an installation opening 12 for inserting the end cover 11 is provided on an end part of the housing 1 far away from a port, a thread groove 21 matched with the external thread on the end cover 11 is provided on an end part of the stator 2 along an axial direction of the stator 2, after the stator 2 is installed on the housing 1, the thread groove 21 is opposite to the installation opening 12 on the housing 1, the end cover 11 is inserted into the installation opening 12 and screwed into the thread groove 21 on the stator 2, the end part of the end cover 11 abuts against the side wall of the housing 1, and then the stator 2 is fixed in the housing 1.
Referring to fig. 2 and 4, a central hole 22 communicated with a thread groove 21 is formed in a stator 2 along the axial direction of the stator 2, a rotating shaft 5 is arranged in the central hole 22 in a penetrating manner, a placing groove 23 communicated with the central hole 22 is formed in the top wall of the thread groove 21 along the axial direction of the stator 2, a bearing 6 is sleeved on the rotating shaft 5, the rotating shaft 5 is fixedly connected with the inner ring of the bearing 6, a limiting block 24 is fixedly arranged on the side wall of the placing groove 23, a limiting groove 61 is formed in the outer ring of the bearing 6 along the axial direction of the bearing 6, the limiting groove 61 is matched with the limiting block 24, when the stator 2 is installed, the bearing 6 is positioned in the placing groove 23, and when the bearing 6 is installed in the placing groove 23, the limiting block 24 is clamped into the limiting groove 61 of the outer ring of the bearing 6, the outer ring of the bearing 6 is prevented from rotating in the placing groove 23, and when the end cover 11 is fixed to the stator 2, the end cover 11 abuts against the outer ring of the bearing 6, the bearing 6 is fixed in the placing groove 23, and then the rotating shaft 5 is fixed.
Referring to fig. 4, a second fixing component for fixing the rotating shaft 5 is disposed on the inner ring of the bearing 6, the second fixing component includes a sleeve 62, a second plug-in block 63 and a threaded sleeve 64, the sleeve 62 is coaxially and fixedly disposed on the inner ring of the bearing 6, the sleeve 62 is adapted to the rotating shaft 5, a third through hole 621 for the second plug-in block 63 to pass through is formed on the side wall of the sleeve 62, the third through hole 621 is adapted to the second plug-in block 63, a second plug-in groove 52 is formed on the side wall of the rotating shaft 5, the second plug-in groove 52 is adapted to the second plug-in block 63, an external thread adapted to the threaded sleeve 64 is formed on the outer side wall of the sleeve 62, one end face of the second plug-in block 63 is set as an arc face, the rotating shaft 5 passes through the sleeve 62 and the inner ring of the bearing 6, one end of the second through hole 621 on the sleeve 62 is opposite to the second plug-in groove 52, then one end of the second plug-in block 63 far away from the arc face is inserted into the third through hole 621 and the second plug-in groove 52, and when the second plug-in block 63 and the second plug-in block 52 are matched to the second plug-in block 52, and the threaded sleeve 64 is just blocked from the inner ring 64 on the outer side wall of the sleeve 62 and the threaded sleeve 6 is abutted to the inner ring 6, and the threaded sleeve 52 is abutted to the inner ring 6, and the inner wall of the threaded sleeve is abutted to the inner wall of the second plug-in block 63.
Referring to fig. 2, a first sealing ring 13 is fixedly arranged in the shell 1, a second sealing ring 47 is coaxially and fixedly arranged at one end of the disc cover 4, which is close to the shell 1, a intercepting groove 131 is formed in the circumferential direction of the first sealing ring 13 at one end of the first sealing ring 13, when the disc cover 4 is installed, the second sealing ring 47 is positioned in the intercepting groove 131 of the first sealing ring 13, and the second sealing ring 47 is in clearance fit with each side wall of the intercepting groove 131; when the brushless direct current motor works, a shutoff gap is formed between the second sealing ring 47 and the shutoff groove 131, dust can circulate along the gap between the second sealing ring 47 and the shutoff groove 131 after entering the shutoff groove 131, a shutoff effect can be generated in the process, and then dust is blocked, so that the dust is effectively prevented from entering the shell 1.
Referring to fig. 5, a plurality of spiral drainage blocks 471 are respectively formed on the inner side wall and the outer side wall of the second sealing ring 47, spiral drainage pipes on the inner side wall and the outer side wall of the second sealing ring 47 are distributed along the circumferential direction of the second sealing ring 47, the extending direction of the spiral drainage blocks 471 on the inner side wall of the second sealing ring 47 is opposite to the rotating direction of the rotor 3, and the spiral directions of the spiral drainage blocks 471 on the inner side wall of the second sealing ring 47 are opposite to the spiral directions of the spiral drainage blocks 471 on the outer side wall of the second sealing ring 47; when the brushless direct current motor works, under the guidance of the spiral drainage blocks 471 on the inner side wall and the outer side wall of the second sealing ring 47, airflow is formed in the flow interception groove 131, and flows from the inside of the shell 1 to the outside of the shell 1, dust is further prevented from entering the shell 1, and part of heat in the shell 1 can be discharged out of the shell 1 due to the fact that the airflow flows from the inside of the shell 1 to the outside of the shell 1, and the radiating effect of the brushless direct current motor to the inside of the shell 1 is improved when the brushless direct current motor works.
The implementation principle of the energy-saving environment-friendly brushless direct current motor for the dust collector is as follows: this application is through all with lid 4 and rotor 3 and casing 1 clearance fit to restrict lid 4 and rotor 3's working position through pivot 5, brushless DC motor is at the during operation, between lid 4 and the casing 1, and all can not produce mutual friction between rotor 3 and the casing 1, and pivot 5 passes through bearing 6 and is connected with stator 2, and at the during operation, the interact face between pivot 5 and the stator 2 is little, effectively reduces the calorific capacity of brushless DC motor during operation, and effectively reduces the consumption that brushless DC motor during operation brought because of frictional force, the energy saving.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (8)
1. The utility model provides an energy-concerving and environment-protective brushless direct current motor for dust catcher, includes casing (1), fixed stator (2) that set up in casing (1) to and rotor (3) that rotate the setting in casing (1), its characterized in that: the novel motor rotor is characterized in that one end of the shell (1) is provided with an opening, the opening end of the shell (1) is rotatably provided with a disc cover (4), the disc cover (4) is fixedly connected with the rotor (3) in a coaxial mode, the disc cover (4) and the rotor (3) are in clearance fit with the shell (1), a central hole (22) is formed in the stator (2), a rotating shaft (5) is arranged in the central hole (22) in a penetrating mode, a bearing (6) is fixedly arranged in the central hole (22) of the stator (2), the rotating shaft (5) is arranged in an inner ring of the bearing (6) in a penetrating mode and is fixedly connected with the inner ring of the bearing (6), the center line of the rotating shaft (5) is collinear with the center line of the stator (2), a first through hole (41) for the rotating shaft (5) to penetrate is formed in the disc cover (4), and a first fixing component for fixing the rotating shaft (5) is arranged on the disc cover (4).
The first fixing assembly comprises a first plug-in block (42) and a limiting piece, a containing groove (43) is formed in the side wall of the first through hole (41), the first plug-in block (42) is arranged in the containing groove (43) in a sliding mode, a first plug-in groove (51) for the first plug-in block (42) to be inserted into is formed in the side wall of the rotating shaft (5), and the limiting piece is used for preventing the first plug-in block (42) from sliding;
the limiting part comprises a limiting screw (44), the limiting screw (44) is rotationally arranged in the accommodating groove (43) and is in threaded fit with the first plug-in block (42), a transmission rod (441) is coaxially and fixedly arranged on the limiting screw (44), a second through hole (45) communicated with the accommodating groove (43) is formed in the side wall of the disc cover (4) along the sliding direction of the first plug-in block (42), the transmission rod (441) penetrates through the second through hole (45) and is rotationally connected with the disc cover (4), and a screwdriver groove is formed in one end, far away from the limiting screw (44), of the transmission rod (441).
2. The energy-saving and environment-friendly brushless direct current motor for dust collectors according to claim 1, wherein: the stator (2) is detachably arranged on the shell (1), and a fixing piece for fixing the stator (2) is arranged on the shell (1).
3. The energy-saving and environment-friendly brushless direct current motor for dust collectors as claimed in claim 2, wherein: the fixing piece comprises an end cover (11), an external thread is arranged on the side wall of the end cover (11), a thread groove (21) matched with the external thread on the end cover (11) is arranged on the stator (2), a mounting opening (12) communicated with the inside of the shell (1) is arranged on the side wall of the shell (1), and the mounting opening (12) is used for the end cover (11) to be inserted.
4. A vacuum cleaner energy-saving and environment-friendly brushless dc motor as claimed in claim 3, wherein: the utility model discloses a stator, including stator (2) and bearing (24), screw thread groove (21) are offered along the axial of stator (2) and are linked together with centre bore (22), standing groove (23) with centre bore (22) intercommunication are offered to the roof of screw thread groove (21), standing groove (23) and bearing (6) looks adaptation just are used for putting into bearing (6), end cover (11) are used for compressing tightly the outer loop of bearing (6), fixed stopper (24) that are provided with on standing groove (23) lateral wall, spacing groove (61) have been offered along the axial of bearing (6) on the outer loop of bearing (6), spacing groove (61) and stopper (24) looks adaptation.
5. The energy-saving and environment-friendly brushless direct current motor for dust collectors according to claim 4, wherein: the bearing (6) is detachably connected with the inner ring of the rotating shaft (5), and a second fixing component for fixing the rotating shaft (5) is arranged on the inner ring of the bearing (6).
6. The energy-saving and environment-friendly brushless direct current motor for dust collectors according to claim 5, wherein: the second fixing assembly comprises a sleeve (62), a second plug-in block (63) and a threaded sleeve (64), wherein the sleeve (62) is coaxially and fixedly arranged on an inner ring of a bearing (6) and used for allowing a rotating shaft (5) to pass through, a third through hole (621) used for allowing the second plug-in block (63) to pass through is formed in the side wall of the sleeve (62), a second plug-in groove (52) used for allowing the second plug-in block (63) to be inserted into is formed in the side wall of the rotating shaft (5), external threads matched with the threaded sleeve (64) are formed in the outer side wall of the sleeve (62), and the threaded sleeve (64) is used for preventing the second plug-in block (63) from being separated from the second plug-in groove (52) of the rotating shaft (5).
7. The energy-saving and environment-friendly brushless direct current motor for dust collectors according to claim 1, wherein: the utility model discloses a disc cover, including casing (1), disc cover (4), first sealing ring (13) are provided with to casing (1) internal fixation, disc cover (4) are close to the coaxial fixed second sealing ring (47) that is provided with of one end of casing (1), first sealing ring (13) are close to one end of disc cover (4) and have seted up along the circumference of first sealing ring (13) interception groove (131), second sealing ring (47) rotate and set up in interception groove (131), just clearance fit between second sealing ring (47) and the first sealing ring (13).
8. The energy-saving and environment-friendly brushless direct current motor for dust collectors as claimed in claim 7, wherein: a plurality of spiral drainage blocks (471) are arranged on the inner side wall and the outer side wall of the second sealing ring (47), the spiral directions of the spiral drainage blocks (471) on the inner side wall of the second sealing ring (47) are opposite to those of the spiral drainage blocks (471) on the outer side wall of the second sealing ring (47), and the extending directions of the spiral drainage blocks (471) on the inner side wall of the second sealing ring (47) are opposite to the rotating directions of the rotor (3).
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| CN202410122151.8A CN117650643B (en) | 2024-01-30 | 2024-01-30 | Energy-saving environment-friendly brushless direct current motor for dust collector |
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| CN117650643B true CN117650643B (en) | 2024-04-05 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002010564A (en) * | 2000-06-21 | 2002-01-11 | Toshiba Tec Corp | Dc brushless motor |
| CN201087285Y (en) * | 2008-01-14 | 2008-07-16 | 宁波普尔机电制造有限公司 | Frequency-conversion speed reduction clutch of washing machine |
| CN105099059A (en) * | 2015-08-12 | 2015-11-25 | 浙江工业大学 | Measures for preventing outer rotor fan rotor from falling |
| WO2020258729A1 (en) * | 2019-06-28 | 2020-12-30 | 广东美的白色家电技术创新中心有限公司 | Direct current brushless motor |
| CN114337055A (en) * | 2021-12-23 | 2022-04-12 | 深圳市亚加电机有限公司 | Brushless rotating electric machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202918162U (en) * | 2012-10-31 | 2013-05-01 | 中山大洋电机股份有限公司 | DC brushless external rotor motor structure |
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2024
- 2024-01-30 CN CN202410122151.8A patent/CN117650643B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002010564A (en) * | 2000-06-21 | 2002-01-11 | Toshiba Tec Corp | Dc brushless motor |
| CN201087285Y (en) * | 2008-01-14 | 2008-07-16 | 宁波普尔机电制造有限公司 | Frequency-conversion speed reduction clutch of washing machine |
| CN105099059A (en) * | 2015-08-12 | 2015-11-25 | 浙江工业大学 | Measures for preventing outer rotor fan rotor from falling |
| WO2020258729A1 (en) * | 2019-06-28 | 2020-12-30 | 广东美的白色家电技术创新中心有限公司 | Direct current brushless motor |
| CN114337055A (en) * | 2021-12-23 | 2022-04-12 | 深圳市亚加电机有限公司 | Brushless rotating electric machine |
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| CN117650643A (en) | 2024-03-05 |
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