CN108711991B - A mounting disc, fan subassembly and washing and drying all-in-one for installing motor - Google Patents
A mounting disc, fan subassembly and washing and drying all-in-one for installing motor Download PDFInfo
- Publication number
- CN108711991B CN108711991B CN201810551505.5A CN201810551505A CN108711991B CN 108711991 B CN108711991 B CN 108711991B CN 201810551505 A CN201810551505 A CN 201810551505A CN 108711991 B CN108711991 B CN 108711991B
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- mounting
- stator
- cavity
- circuit board
- mounting plate
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- 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
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- 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
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
-
- 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
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
Abstract
The invention discloses a mounting disc for mounting a motor, a fan assembly and a washing and drying integrated machine, wherein one part of the mounting disc is recessed from one side to the other side to form a mounting cavity with an opening, and a motor shaft hole penetrating through the mounting disc is formed in the bottom wall of the mounting cavity; wherein, the size of installation cavity and the stator size looks adaptation of motor are equipped with the stator limit structure who is used for cooperating the stator on the inner wall of installation cavity. According to the mounting disc provided by the embodiment of the invention, the stator and the rotor can be directly installed in the mounting cavity, the stator is limited and fixed through the stator limiting structure, the stator and the rotor do not need to be installed in the motor shell and then installed in the mounting disc, and the mounting disc is compact in structure and small in gap after being assembled with a motor.
Description
Technical Field
The invention belongs to the technical field of motors, and particularly relates to a mounting disc for mounting a motor, a fan assembly and a washing and drying integrated machine.
Background
The assembly installation of its drive structure of current washing and drying all-in-one remains to be improved, specifically, the drive structure at first need encapsulate motor body alone, then motor body whole with the mounting disc assembly, need be fixed in motor body on the mounting disc through modes such as twisting screw or welding when the assembly, the installation is complicated, the installation inefficiency.
In addition, enameled wires and insulated wires in the motor body are welded through contact pins on a PCB as media, the contact pins have certain heights, the motor body needs to be designed to be thick so as to meet creepage distance, and an insulating gasket needs to be placed to solve the problem of voltage resistance.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the mounting disc for mounting the motor, the stator and the rotor can be directly assembled by the mounting disc, the mounting is convenient, and parts are saved.
The invention also aims to provide a fan assembly with the mounting disc.
The invention also aims to provide a washing and drying integrated machine with the fan assembly.
According to the mounting disc for mounting the motor, a part of the mounting disc is recessed from one side to the other side to form a mounting cavity with an opening, a motor shaft hole penetrating through the mounting disc is formed in the bottom wall of the mounting cavity, and a bearing chamber for mounting a bearing is arranged on the bottom wall of the mounting cavity; the size of the installation cavity is matched with the size of a stator of the motor, and a stator limiting structure used for being matched with the stator is arranged on the inner wall of the installation cavity.
According to the mounting disc for mounting the motor, the size of the mounting cavity is set to be matched with the size of the stator of the motor, the stator limiting structure for fixing the stator is arranged on the inner wall of the mounting cavity, the stator can be directly installed in the mounting cavity, then the rotor is sleeved in the stator, and the stator and the rotor do not need to be installed in a motor shell and then installed in the mounting disc; after the mounting disc is assembled with the motor, the structure is compact, the gap is small, the number of parts is reduced, and the processing cost is reduced.
According to an embodiment of the present invention, the stator limiting structure includes: and the inner stop block and the outer stop block are used for respectively stopping at two axial sides of the stator.
According to the mounting disc for mounting the motor, provided by the embodiment of the invention, the inner stop block and the outer stop block are arranged on the inner wall of the mounting cavity along the circumferential direction, and the stator limiting structure comprises: the circumferential limiting column is used for being inserted into the stator to limit the rotation of the stator, and the circumferential limiting column is located between two adjacent outer abutting blocks or two adjacent inner abutting blocks.
According to the mounting disc for mounting the motor, disclosed by the embodiment of the invention, the mounting disc is provided with the circuit board fixing buckle, and the circuit board fixing buckle is arranged close to the stator limiting structure.
According to the mounting disc for mounting the motor, the wiring harness fixing buckle is arranged on the mounting disc, and the wiring harness fixing buckle and the circuit board fixing buckle are located on the same radius of the mounting cavity.
According to the mounting disc for mounting the motor, a plurality of end cover positioning structures are arranged on the mounting disc and surround the opening.
According to a further embodiment of the present invention, the end cap positioning structure includes a radial stopper for stopping at an outer circumferential surface of the end cap.
Optionally, the end cover positioning structure comprises an axial limiting block for stopping at a side of the end cover away from the installation cavity.
Optionally, a connecting hole is formed in the axial limiting block.
A fan assembly according to an embodiment of the present invention includes: the mounting disc is used for mounting the motor; the stator is matched in the installation cavity, the outer peripheral wall of the stator is contacted with the inner peripheral wall of the installation cavity, and the stator is matched with the stator limiting structure; the rotor is rotatably sleeved in the stator; the motor shaft is connected with the rotor, and one end of the motor shaft penetrates out of the motor shaft hole; the circuit board is connected with the mounting disc and is connected with a stator winding of the stator in a wiring mode; the end cover is arranged on the mounting disc and covers the opening; the wind wheel is located the installation cavity department and with the motor shaft links to each other.
According to the fan assembly provided by the embodiment of the invention, the stator is directly assembled in the mounting cavity, the rotor is sleeved in the stator, and then the motor shaft, the circuit board, the end cover and the wind wheel are mounted, so that a tight fit is formed, and a stable mounting structure is provided for the motor; the mounting structure removes a motor shell, reduces the using amount of screws, improves the assembly efficiency and reduces the processing cost; the circuit board is integrated on the mounting disc, which is beneficial to shortening the wiring between the circuit board and the stator; the end cover seals the open part of the mounting cavity, so that the interior mounting structure is protected while the appearance is attractive, and the rotor can be supported to rotate.
According to the fan assembly provided by the embodiment of the invention, the side, facing the opening, of the stator is provided with a supporting column, and a part of the circuit board is supported on the supporting column.
According to the fan assembly provided by the embodiment of the invention, the circuit board is provided with a plurality of winding teeth in the direction towards the central axis of the mounting cavity.
Specifically, the winding teeth are provided with welding pads, and at least part of the welding pads are connected with joints of the stator windings in a welding mode.
According to the fan assembly provided by the embodiment of the invention, the wind wheel is a centrifugal wind wheel, and the centrifugal wind wheel is sleeved on the convex part of the mounting disc, which forms the mounting cavity.
The washing and drying integrated machine comprises the fan assembly.
According to the washing and drying integrated machine provided by the embodiment of the invention, the mounting disc and the motor are made into an integral mounting structure, so that the washing and drying integrated machine is convenient to mount and high in mounting efficiency; the wind wheel can drive hot air in the washing and drying integrated machine to be transmitted and circulated, so that clothes can be dried.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a mounting plate according to an embodiment of the present invention.
Fig. 2 is an exploded view of a fan assembly according to an embodiment of the present invention.
FIG. 3 is a schematic cross-sectional view of the wind turbine assembly of FIG. 2 when assembled (with the rotor omitted).
Fig. 4 is a schematic view of a matching structure of a mounting plate and a motor according to an embodiment of the invention.
FIG. 5 is a schematic structural view of a blower assembly according to an embodiment of the present invention with the end caps not being screwed.
FIG. 6 is a schematic view of the blower assembly shown in FIG. 5 after the end cap is screwed on.
Reference numerals:
a mounting plate 100; a mounting cavity 110; a motor shaft hole 120; a stator limiting structure 130; an inner stop block 1312; an outer stop block 1311; a circumferential limit post 132; a circuit board fixing clip 133; a harness securing clasp 134; an end cap positioning structure 135; a radial stop 1351; an axial stop 1352; a connecting hole 1353; a convex portion 140; a bearing chamber 150;
a stator 200; a support column 210; a peripheral edge 220; a circumferential spacing groove 230;
an end cap 300; end cap lugs 310; an end cap connection hole 311;
a rotor 400;
a motor shaft 500; a steel jacket 510;
a circuit board 600; the winding teeth 610; a bonding pad 620;
a wind wheel 700;
a bolt 800;
a bearing 900;
a fan assembly 1000.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
A mounting plate 100 for mounting a motor according to an embodiment of the present invention will be described with reference to fig. 1 to 6.
According to the mounting plate 100 for mounting the motor of the embodiment of the invention, as shown in fig. 1-4, a part of the mounting plate 100 is recessed from one side to the other side to form a mounting cavity 110 with an opening, a motor shaft hole 120 penetrating through the mounting plate 100 is formed on the bottom wall of the mounting cavity 110, and a bearing chamber 150 for mounting a bearing 900 is further arranged on the bottom wall of the mounting cavity 110.
The mounting plate 100 of the embodiment of the present invention may be made in the shape of a circular housing, a volute, or other adaptive shapes adapted to the external environment of the mounting plate 100.
As shown in fig. 3, the recessed mounting cavity 100 may be formed as a stepped inner wall to accommodate mounting of various components of the motor. The bottom wall of the mounting cavity 110 is provided with a motor shaft hole 120, so that the motor shaft 500 can extend to the outside of the mounting plate 100, and the motor components can be normally operated and drive other components while being installed in the mounting cavity 110. The bottom wall of the mounting cavity 110 is provided with a bearing chamber 150 for mounting a bearing 900, and the bearing 900 is used for supporting the rotation of the motor shaft 500.
As shown in fig. 1 and 2, the size of the mounting cavity 110 is adapted to the size of the stator 200 of the motor. Therefore, the stator 200 can be directly placed in the mounting cavity 110, the structure between the inner wall of the mounting disc 100 and the motor is compact, the gap is small, the stator is not easy to shake, and the stator is firmly mounted.
In order to further enhance the connection between the stator 200 and the mounting plate 100, as shown in fig. 1, a stator limiting structure 130 for engaging the stator 200 is disposed on the inner wall of the mounting cavity 110, so as to limit the position of the stator 200. The stator limiting structure 130 may be disposed on an inner wall of the mounting cavity 110, or may be disposed at an end of the mounting cavity 110.
In some embodiments of the present invention, the stator restricting structure 130 includes an inner stopper 1312 and an outer stopper 1311 for stopping at both axial sides of the stator 200, respectively, so that the axial movement of the stator 200 can be restricted, i.e., the stator 200 can not move toward the motor shaft hole 120 nor the opening direction of the mounting cavity 110. This ensures the stability of the connection between the stator 200 and the mounting plate 100.
Specifically, as shown in fig. 1, the inner stopping block 1312 is a protrusion formed on the inner peripheral wall of the mounting cavity 110, and after the stator 200 is installed in the mounting cavity 110 from the opening, the stator 200 is not allowed to move inward when the stator 200 stops against the inner stopping block 1312.
The outer stop block 1311 is a protrusion formed on the inner peripheral wall of the mounting cavity 110, and after the stator 200 is installed in the mounting cavity 110 from the opening, when the stator 200 stops against the inner stop block 1312, the outer stop block 1311 will also stop against the side of the stator 200 facing the opening, so that the stator 200 is not convenient to move outwards.
As shown in fig. 3, a peripheral edge 220 is formed on the outer peripheral wall of the stator 200, and the peripheral edge 220 is caught between the inner stopper 1312 and the outer stopper 1311. To ensure the reliability of the axial position limitation, a plurality of spaced inner stop blocks 1312 and outer stop blocks 1311 are provided on the inner circumferential wall of the mounting cavity 110.
Optionally, inner abutment blocks 1312 and outer abutment blocks 1311 are arranged in pairs, and inner abutment blocks 1312 and outer abutment blocks 1311 are arranged spaced apart to snap into the periphery 220 of stator 200. Further optionally, there are multiple pairs of inner butts 1312 and outer butts 1311.
In some embodiments of the present invention, as shown in fig. 1, the stator restraining structure 130 includes a circumferential restraining post 132 for insertion into the stator 200 to restrain the stator 200 from rotating. Specifically, as shown in fig. 2, a circumferential limiting groove 230 is formed on the outer circumferential wall of the stator 200, and the circumferential limiting post 132 is inserted into the circumferential limiting groove 230. Alternatively, as shown in fig. 1 and 2, the circumferential direction limiting groove 230 is open (i.e., has no seal) at both axial ends of the stator 200, so that the circumferential direction limiting post 132 can be directly slid into the circumferential direction limiting groove 230 when the stator 200 is inserted.
Specifically, in the circumferential direction of the mounting cavity 110, the circumferential limiting column 132, the inner abutting block 1312 and the outer abutting block 1321 are arranged in a staggered manner, and the three blocks are matched with the size of the mounting cavity 110, so that six degrees of freedom of the stator 200 are limited, and phenomena such as rotation dislocation during the operation process are avoided.
Here, the circumferential direction limiting column 132 is located between two adjacent outer stop blocks 1311, or the circumferential direction limiting column 132 is located between two adjacent inner stop blocks 1312. That is, the circumferential direction limiting column 132 is not only located on the side of the inner stop block 1312 facing the motor shaft hole 120, nor is the circumferential direction limiting column 132 only located on the side of the outer stop block 1311 facing the opening. The circumferential limiting column 132 is disposed because the matching between the outer stop block 1311 and the inner stop block 1312 can limit the bending moment of the stator 200 in the axial direction, and it can be ensured that the circumferential limiting column 132 is not easily disengaged from the stator 200.
As shown in fig. 1 and 4, in some embodiments of the present invention, a circuit board fixing clip 133 is disposed on the mounting plate 100 to facilitate the clip fixing of the circuit board 600 on the mounting plate 100.
It is understood that the circuit board 600 of the motor in the related art is generally mounted on the stator 200 or the motor case, and in the embodiment of the present invention, the circuit board 600 is not suitable for being mounted on the motor case since the structure of the motor case is eliminated. Since the size of the mounting cavity 110 is matched with the size of the stator 200 of the motor, the stator 200 and the mounting plate 100 are assembled compactly, and if the circuit board 600 is mounted on the stator 200, the stator 200 and the mounting plate 100 may not be compact enough. Therefore, in the embodiment of the present invention, the circuit board 600 is mounted on the mounting plate 100, which is beneficial to the compactness and miniaturization of the whole structure.
Here, the circuit board 600 is clamped by the circuit board fixing buckle 133, so that the number of screws used is reduced, the assembly efficiency is improved, the damage to the circuit board 600 in the mounting process is small, and the mounting adjustment is convenient.
Alternatively, as shown in fig. 1, the circuit board fixing clip 133 is provided with an opening on one side facing the central axis of the mounting cavity 110, and the circuit board 600 is inserted into the opening.
Specifically, as shown in fig. 1, the circuit board securing catch 133 is disposed adjacent to the stator spacing structure 130. It can be understood that, although the overall position of the stator 200 is limited by the fixing of the stator limiting structure 130, the stator 200 may still be slightly deformed, skewed, etc. after being stressed. The circuit board 600 is mounted to be connected to the wiring of the stator 200, and if the deformation or skew of the stator 200 is excessively large, the wiring between the circuit board 600 and the stator 200 is affected.
Here, it is utilized that the degree of deformation or skew of the stator 200 is minimized adjacent to the stator restricting structure 130, and thus, the reliability of wiring between the circuit board 600 and the stator 200 can be secured by the circuit board fixing clip 133 being disposed adjacent to the stator restricting structure 130.
In some embodiments of the present invention, as shown in fig. 1, a wire harness fixing buckle 134 is further disposed on the mounting plate 100, so that a wire harness led out from the circuit board 600 can be fixed in the wire harness fixing buckle 134 to prevent the wire harness from being twisted and knotted.
Specifically, as shown in fig. 1 and 4, the harness fixing clip 134 and the circuit board fixing clip 133 are located on the same radius of the mounting cavity 110. Therefore, the shortest distance between the wire harness fixing buckle 134 and the circuit board fixing buckle 133 can be ensured, the wire consumption is reduced, and the problems of wire winding, interference and the like are avoided.
Alternatively, the harness fixing clip 134 is two elastic strips attached to the end surface of the mounting plate 100, the two elastic strips being spaced apart, and the middle portions of the two elastic strips protruding away from each other.
As shown in fig. 1 and 5, in some embodiments of the present invention, a plurality of end cover positioning structures 135 are disposed on the mounting plate 100 around the opening, that is, the end cover 300 is further required to be disposed on the mounting plate 100 when the motor is mounted, and the end cover positioning structures 135 are used to cooperate with the end cover 300 to restrain the end cover 300, so as to improve the mounting accuracy and the mounting efficiency of the end cover 300.
Specifically, the end cover positioning structure 135 includes a radial stopper 1351 for stopping on the outer peripheral surface of the end cover 300, so that the radial stopper 1351 limits the radial moving space of the end cover 300 and can serve as an indication of the installation position.
Advantageously, as shown in FIG. 1, the radial stoppers 1351 are disposed around the mounting cavity 110, and the surfaces of the radial stoppers 1351 facing the mounting cavity 110 are located on the same cylindrical surface.
Further, the end cover positioning structure 135 includes an axial stopper 1352 for stopping on a side of the end cover 300 away from the mounting cavity 110, so as to limit an axial moving space of the end cover 300 and prevent the end cover 300 from loosening when the motor operates.
Optionally, the axial stopper 1352 is provided with a connecting hole 1353. As shown in fig. 5 and 6, the connection holes 1353 are primarily adapted to mate with the end cap connection holes 311 on the end cap 300 and are secured with screws 800 when the end cap 300 is mounted to the mounting plate 100 and rotated into position.
Optionally, the axial stopper 1352 has a fan-shaped structure and extends to the central axis of the mounting cavity 110.
According to the mounting disc 100 for mounting the motor, the motor can be directly mounted on the mounting disc 100, the circuit board 600 can be mounted, a wiring harness can be clamped, the mounting integration level is high, the structure is compact, and the miniaturization design of the motor is facilitated.
A fan assembly 1000 according to an embodiment of the present invention, as shown in fig. 2 and 3, includes: mounting plate, stator 200, rotor 400, motor shaft 500, circuit board 600, end cap 300, and wind wheel 700.
As shown in fig. 1 to fig. 6, specifically, the mounting plate is the aforementioned mounting plate 100 for mounting the motor, and details of the structure of the mounting plate 100 are not repeated here. The stator 200 is fitted in the mounting cavity 110, the outer circumferential wall of the stator 200 contacts with the inner circumferential wall of the mounting cavity 110, the stator 200 is fitted with the stator limiting structure 130, and the rotor 400 is rotatably sleeved in the stator 200, i.e., the motor of the embodiment of the present invention is an inner rotor motor.
The motor shaft 500 is connected to the rotor 400, a portion of the motor shaft 500 is located in the mounting cavity 110 and is sleeved on the rotor 400, and a portion of the motor shaft 500 extends from the motor shaft hole 120.
As shown in fig. 2, 3 and 4, the circuit board 600 is connected to the mounting plate 100, and the circuit board 600 is wired to the stator winding of the stator 200. Here, the mounting plate 100 may be clamped with the circuit board 600 by providing a circuit board fixing clip 133, and the circuit board 600 may also be fixed on the mounting plate 100 by screws, which is not limited herein.
As shown in fig. 2, 3, 5 and 6, the end cap 300 is disposed on the mounting plate 100 and covers the opening of the mounting cavity 110, and after the stator 200, the rotor 400, the motor shaft 500 and the circuit board 600 are mounted and wired in place, the end cap 300 can be covered on the mounting plate 100 to seal the motor in the mounting cavity 110. The end cap 300 protects the components inside the installation cavity 110, so that the components inside the installation cavity can work normally, and the end cap 300 also plays a role in beauty.
As shown in fig. 2 and 5, the wind wheel 700 is located outside the installation cavity 110 and connected to the motor shaft 500, and when the motor is operated, the motor shaft 500 is driven to rotate, so that the wind wheel 700 is driven to rotate, and when the wind wheel 700 rotates, air flows in a set direction, and forced convection occurs.
According to the fan assembly 1000 of the embodiment of the invention, the mounting disc 100 of the embodiment is arranged, the stator 200 is directly assembled in the mounting disc 100, and the rotor 400, the motor shaft 500, the circuit board 600, the end cover 300 and the wind wheel 700 are assembled on the mounting disc 100, so that the number of parts is reduced, and the assembly efficiency is improved.
In some embodiments of the present invention, as shown in fig. 2, the side of the stator 200 facing the opening is provided with a supporting column 210, a part of the circuit board 600 is supported on the supporting column 210, and the end cap 300 also encapsulates the circuit board 600 in the mounting cavity 110 when encapsulating the motor. Here, a portion of the circuit board 600 is connected to the mounting plate 100, and a portion of the circuit board is supported by the stator 200, so that the length of the connecting wire can be reduced, the internal space of the mounting cavity 110 can be reasonably utilized, and the mounting cavity 110 is prevented from being directly arranged to be too large and the overall external dimension is prevented from being too large.
Optionally, the circuit board 600 is inserted into the supporting column 210 of the stator 200, so that the connection between the circuit board 600 and the stator 200 is firm and the circuit board 600 is not easy to loose.
Optionally, as shown in fig. 4, the circuit board 600 is provided with a plurality of winding teeth 610 facing the central axis of the mounting cavity 110, and the winding teeth 610 can be used for winding wires, thereby avoiding the situations of disorder and disconnection of wires in the mounting cavity 110.
Further alternatively, as shown in fig. 4, the winding teeth 610 are provided with pads 620, and at least a part of the pads 620 are connected with the joints of the stator winding by welding. In this embodiment, the pads 620 may be distributed on any or all sides of each winding tooth 610, wherein the pads 620 on one side are in conductive communication with the circuit layer of the circuit board 600.
Specifically, the circuit board 600 needs to be wired with the stator windings of the stator 200 to control the current and voltage, etc. In the conventional motor, the winding joints of the stator winding are inserted on the circuit board through the pins and other parts, but in the embodiment of the invention, the bonding pads 620 are directly arranged on the winding teeth 610 and are welded with the winding joints, so that the intermediate media such as the pins are saved, the welding area of the bonding pads 620 is large, and the conductive connection is more reliable. In addition, the welding is performed by the welding pad 620 on the winding tooth 610, so that the space utilization rate in the mounting cavity 110 is improved, and the whole structure is compact and miniaturized.
In some embodiments, the end cap 300 is pressed between the radial stop 1351 and the axial stop 1352 and, after rotation, may be secured to the axial stop 1352 with the bolt 800. This manner of mounting the end cap 300 is robust, reliable, and efficient.
Specifically, as shown in fig. 3, a bearing chamber 150 is provided on the bottom wall of the mounting cavity 110, a bearing chamber 150 is also provided on a side of the end cap 300 facing the mounting cavity 110, two bearings 900 are respectively provided in the two bearing chambers 150, and the two bearings 900 are used for being sleeved on the motor shaft 500 to support the rotor 400 to rotate.
Advantageously, as shown in fig. 1, a sleeve is provided on the bottom wall of the mounting cavity 110, the enclosed portion of the sleeve forms a bearing chamber 150, a steel sleeve 510 is provided in the bearing chamber 150, and the outer periphery of the sleeve is provided with a reinforcing rib. As shown in fig. 3, the center portion of the end cap 3000 is recessed toward the side away from the mounting cavity to form another bearing chamber 150, and the two bearing chambers 150 are disposed coaxially with the motor shaft hole 120.
In some embodiments, as shown in fig. 3, one side of the mounting plate 100 is formed with a mounting cavity 110 having an opening, and a portion of the mounting plate 100 where the mounting cavity 110 is formed is referred to as a protrusion 140 from the other side of the mounting plate 100.
Specifically, as shown in fig. 2, the wind wheel 700 is a centrifugal wind wheel, the centrifugal wind wheel is sleeved on the convex part 140 formed by the mounting plate 100, and the mounting plate 100 is formed as a part of a volute of the wind wheel by the sleeving structure, so that the number of parts is reduced. Of course, the wind wheel 700 in the embodiment of the present invention may not be limited to a centrifugal wind wheel, but may also be an axial flow wind wheel or an oblique flow wind wheel, which is not limited herein.
According to the embodiment of the invention, the washing and drying all-in-one machine comprises the fan assembly 1000, and the fan assembly 1000 can provide running power for the washing and drying all-in-one machine and can also provide airflow in the washing and drying all-in-one machine to flow along a set direction.
The washing and drying integrated machine disclosed by the embodiment of the invention has the advantages of small number of parts, compact structure, high assembly efficiency and good quality reliability, and is beneficial to the miniaturization design of the integrated machine.
To better understand the solution of the embodiment of the present invention, the structure of the mounting plate 100 and the structure of the fan assembly 1000 in an embodiment of the present invention are described below with reference to fig. 1 to 6.
As shown in FIG. 1, a mounting plate for mounting a motor, the mounting plate 100 is in a volute shape, and an inwardly concave mounting cavity 110 is provided therein, meanwhile, one end of the mounting cavity 110 is open, a motor shaft hole 120 is provided at the bottom of the recessed end, and a part of the mounting plate 100 where the mounting cavity 110 is formed is also called a convex part 140. The inner wall of the mounting cavity 110 is provided with three stator limiting structures 130, which include a plurality of pairs of inner stop blocks 1312 and outer stop blocks 1311 that stop against the two axial sides of the stator 200 in pairs, and a circumferential limiting column 132 that is inserted into the stator 200 to limit the rotation of the stator 200. The inner and outer abutments 1312 and 1311 are spaced apart to match the profile requirements of the stator 200. As shown in fig. 1 and fig. 5, three pairs of end cap positioning structures 135 surrounding the opening are further disposed on the mounting plate 100, each pair of end cap positioning structures 135 includes a radial stopper 1351 and an axial stopper 1352, and the radial stoppers 1351 and the axial stoppers 1352 are alternately spaced in the direction surrounding the opening.
As shown in fig. 1 and 4, the mounting cavity 110 is formed as a cylindrical cavity, and the inner wall of the mounting cavity 110 has a step surface, and the step surface is provided with a circuit board fixing buckle 133 for fixing the circuit board 600.
As shown in fig. 2-6, a fan assembly 1000 includes a mounting plate 100, a stator 200, a rotor 400, a motor shaft 500, a circuit board 600, an end cap 300, and a wind wheel 700. The mounting cavity 110 in the mounting plate 100 is used to mount the stator 200, the rotor 400 and the motor shaft 500. Specifically, the motor shaft hole 120 on the bottom wall of the mounting cavity 110 is used for mounting the motor shaft 500, and one end of the motor shaft 500 extends out of the mounting cavity 110 from the motor shaft hole 120 and is connected with the wind wheel 700. The end cap positioning structure 135 of the mounting plate 100 is used to connect the end cap 300 to achieve an open closure.
In this embodiment, the stator 200 is formed integrally, and the stator 200 is integrally embedded in the mounting plate 100. The stator comprises an iron core, an enameled wire and an integrated injection molding structure, and the integrated injection molding structure is encapsulated on the iron core and the enameled wire. The core is large in size and constitutes the periphery 220 of the stator 200. The stator 200 has an outer shape adapted to the mounting chamber 110, and an outer circumferential wall of the stator 200 is in contact with an inner circumferential wall of the mounting chamber 110. The stator limiting structure 130 is arranged in the mounting cavity 110, the stator limiting structure 130 comprises an inner resisting block 1312, an outer resisting block 1311 and a circumferential limiting column 132, the iron core is clamped between the inner resisting block 1312 and the outer resisting block 1311, and a circumferential limiting groove 230 is formed in the iron core. The integrated injection molding structure is provided with a support column 210, and the support column 210 is inserted on the circuit board 600.
As shown in fig. 2 and 3, the motor of the present invention is an inner rotor motor, the rotor 400 is rotatably sleeved in the stator 200, and the motor shaft 500 is fixedly connected to the rotor 400.
As shown in fig. 2, 3 and 4, one side of the circuit board 600 is clamped to the circuit board fixing buckle 133 on the mounting plate 100, and the other side of the circuit board 600 is inserted to the supporting column 210 on the stator 200. Specifically, the stator 200 is provided with a supporting column 210, and a part of the circuit board 600 is inserted into the supporting column 210. The side of the circuit board fixing clip 133 facing the support column 210 is provided with an opening into which the circuit board 600 is inserted. The circuit board 600 is provided with three winding teeth 610 in a direction toward a central axis of the mounting cavity 110, each winding tooth 610 is provided with a land 620, and a part of the lands is used for wiring with the stator winding of the stator 200. The pads 620 may be distributed on any or all sides of each winding tooth 610, with one of the pads 620 wired for connection to a wire harness pad. There is provided a manner of directly electrically connecting the circuit board 600 with the stator winding (enamel wire) of the stator 200 without using a pin.
As shown in fig. 5 and 6, the end cap 300 is disposed on the mounting plate 100 and covers the opening, when the stator 200, the rotor 400, the motor shaft 500 and the circuit board 600 are all mounted in place, the end cap 300 is pressed between the radial stopper 1351 and the axial stopper 1352, the end cap connecting hole 311 is aligned with the connecting hole 1353 after rotating counterclockwise, the end cap 300 is pressed tightly, and the end cap 300 is fixed on the axial stopper 1352 by the bolt 800.
As shown in fig. 2 and 5, the wind wheel 700 is a centrifugal wind wheel, and the wind wheel 700 is located outside the installation cavity 110 on the side of the convex portion 140 and connected to the motor shaft 500. The rotation of the motor shaft 500 drives the wind wheel 700 to rotate.
The fan assembly 1000, which finally forms an installation unit, is installed in the washing and drying integrated machine as a power driving part.
In the description of the present invention, it is to be understood that the terms "central," "upper," "lower," "rear," "top," "bottom," "inner," "outer," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings to facilitate the description of the invention and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The structure and function of the mounting plate for mounting the motor, the fan assembly, the stator 200, the rotor 400, the circuit board 600, other constituent structures of the washer-dryer, and the operation of mounting the end cap 300 on the mounting plate 100 according to the embodiment of the present invention, which are not described in detail in the washer-dryer, are known to those skilled in the art and will not be described in detail herein.
In the description herein, references to the description of "one embodiment," "some embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (14)
1. The mounting disc for mounting the motor is characterized in that a part of the mounting disc is recessed from one side to the other side to form a mounting cavity with an opening, a motor shaft hole penetrating through the mounting disc is formed in the bottom wall of the mounting cavity, and a bearing chamber for mounting a bearing is arranged on the bottom wall of the mounting cavity; the size of the mounting cavity is matched with the size of a stator of the motor, and a stator limiting structure used for matching with the stator is arranged on the inner wall of the mounting cavity;
stator limit structure includes: the stator comprises an inner stop block and an outer stop block which are used for respectively stopping two axial sides of the stator, and a circumferential limiting column which is used for being inserted into the stator to limit the rotation of the stator, wherein the inner stop block and the outer stop block are arranged on the inner wall of the installation cavity along the circumferential direction, and the circumferential limiting column is positioned between two adjacent outer stop blocks or two adjacent inner stop blocks.
2. The mounting plate for mounting the motor according to claim 1, wherein the mounting plate is provided with a circuit board fixing buckle.
3. The mounting plate for mounting an electric motor of claim 2, wherein the circuit board securing catch is disposed adjacent the stator retention feature.
4. The mounting plate for mounting the motor according to claim 2, wherein a wire harness fixing buckle is arranged on the mounting plate, and the wire harness fixing buckle and the circuit board fixing buckle are located on the same radius of the mounting cavity.
5. A mounting plate for mounting an electric motor according to claim 1, wherein a plurality of end cap locating formations are provided on the mounting plate around the opening.
6. The mounting plate for mounting an electric motor according to claim 5, wherein the end cap positioning structure includes a radial stopper for stopping on the outer peripheral surface of the end cap.
7. The mounting plate for mounting an electric motor according to claim 5, wherein the end cover positioning structure comprises an axial stopper for stopping at a side of the end cover away from the mounting cavity.
8. The mounting plate for mounting the motor according to claim 7, wherein the axial stopper is provided with a connecting hole.
9. A fan assembly, comprising:
a mounting plate for mounting an electric motor according to any one of claims 1 to 8;
the stator is matched in the installation cavity, the outer peripheral wall of the stator is contacted with the inner peripheral wall of the installation cavity, and the stator is matched with the stator limiting structure;
the rotor is rotatably sleeved in the stator;
the motor shaft is connected with the rotor, and one end of the motor shaft penetrates out of the motor shaft hole;
the circuit board is connected with the mounting disc and is connected with a stator winding of the stator in a wiring mode;
the end cover is arranged on the mounting disc and covers the opening;
and the wind wheel is positioned outside the mounting cavity and is connected with the motor shaft.
10. The fan assembly of claim 9 wherein a side of the stator facing the opening is provided with a support post on which a portion of the circuit board is supported.
11. The fan assembly of claim 10 wherein the circuit board is provided with a plurality of winding teeth oriented toward a central axis of the mounting cavity.
12. The fan assembly of claim 11 wherein the winding teeth have pads thereon, at least some of the pads being welded to the stator winding tabs.
13. The fan assembly of claim 9, wherein the rotor is a centrifugal rotor that fits over a protrusion of the mounting plate that forms the mounting cavity.
14. An all-in-one washer dryer comprising a fan assembly according to any one of claims 9 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810551505.5A CN108711991B (en) | 2018-05-31 | 2018-05-31 | A mounting disc, fan subassembly and washing and drying all-in-one for installing motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810551505.5A CN108711991B (en) | 2018-05-31 | 2018-05-31 | A mounting disc, fan subassembly and washing and drying all-in-one for installing motor |
Publications (2)
| Publication Number | Publication Date |
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| CN108711991A CN108711991A (en) | 2018-10-26 |
| CN108711991B true CN108711991B (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810551505.5A Active CN108711991B (en) | 2018-05-31 | 2018-05-31 | A mounting disc, fan subassembly and washing and drying all-in-one for installing motor |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109600000A (en) * | 2018-12-20 | 2019-04-09 | 广州市卓易精密机械有限公司 | It is a kind of for installing the workpiece mounting disc of motor stator |
| CN114079344B (en) * | 2021-11-18 | 2023-08-22 | 浙江东政电机有限公司 | Motor mounting structure convenient to fix and detach |
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Also Published As
| Publication number | Publication date |
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| CN108711991A (en) | 2018-10-26 |
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