阅读说明：本技术 电机和具有其的洗衣机 (Motor and washing machine with same ) 是由 朱小刚 肖海泉 唐剑武 于 2018-07-27 设计创作，主要内容包括：本发明公开了一种电机和具有其的洗衣机,电机包括：电机本体、电路板组件、防护罩和连接件,电路板组件设在电机本体的一端,防护罩设在电机本体的一端并罩设电路板组件的至少一部分,连接件依次连接电机本体、电路板组件和防护罩,并将防护罩和电路板组件连接在电机本体上。利用连接件同时连接电机本体、电路板组件和防护罩,不仅减少了紧固结构的数量,还能减少紧固件连接结构的数量,从而可以简化电机的结构设计,有利于降低电机的生产成本,而且可以提升电机的拆装效率,进而为电机的装配和维护提供了方便。此外,利用防护罩罩设电路板组件可以保护电路板组件不受损坏,有利于提升电路板组件的使用寿命。(The invention discloses a motor and a washing machine with the same, wherein the motor comprises: the motor comprises a motor body, a circuit board assembly, a protective cover and a connecting piece, wherein the circuit board assembly is arranged at one end of the motor body, the protective cover is arranged at one end of the motor body and covers at least one part of the circuit board assembly, and the connecting piece is sequentially connected with the motor body, the circuit board assembly and the protective cover and connects the protective cover and the circuit board assembly to the motor body. Utilize the connecting piece to connect motor body, circuit board assembly and protection casing simultaneously, not only reduced the quantity of fastening structure, can also reduce the quantity of fastener connection structure to can simplify the structural design of motor, be favorable to reducing the manufacturing cost of motor, can promote the dismouting efficiency of motor moreover, and then provide convenience for the assembly and the maintenance of motor. In addition, the circuit board assembly can be protected from being damaged by covering the circuit board assembly with the protective cover, and the service life of the circuit board assembly is prolonged.)

1. An electric machine, comprising:

a motor body;

the circuit board assembly is arranged at one end of the motor body;

the protective cover is arranged at one end of the motor body and covers at least one part of the circuit board assembly;

the connecting piece, the connecting piece connects gradually motor body, circuit board subassembly with the protection casing, and will the protection casing with circuit board subassembly is connected on the motor body.

2. The motor of claim 1, wherein the motor body has a first mounting hole penetrating through the motor body along an axial direction thereof, the circuit board assembly has a second mounting hole, the protective cover has a third mounting hole, and one end of the second mounting hole communicates with the first mounting hole and the other end communicates with the third mounting hole;

the connecting piece penetrates through the third mounting hole and the second mounting hole in sequence and is connected in the first mounting hole.

3. The electric machine of claim 1, wherein a side of the shield facing the circuit board assembly defines a clearance slot in which the circuit board assembly is received, the circuit board assembly comprising:

the circuit board is arranged in the clearance groove, and the peripheral wall of the clearance groove surrounds the peripheral edge of the circuit board;

the circuit element is arranged on one side, facing the protective cover, of the circuit board and is contained in the clearance groove.

4. The motor of claim 3, wherein the inner peripheral wall of the clearance groove is provided with a limiting buckle clamped with the outer peripheral edge of the circuit board assembly.

5. The electric machine of claim 2, wherein the connection comprises:

the connecting rod sequentially penetrates through the third mounting hole, the second mounting hole and the first mounting hole;

the fixed limiting end is arranged at one end of the connecting rod, and the surface of the fixed limiting end, facing the connecting rod, is in contact with the protective cover in a stop-contact manner;

the movable limiting end is movably sleeved at the other end of the connecting rod, and the surface of the movable limiting end facing the connecting rod is in contact with the motor body in a stop manner;

the connecting rod is provided with a fixed limiting end, the connecting rod is provided with a limiting end, and the diameter of the limiting end is gradually reduced from one end close to the connecting rod to one end far away from the connecting rod.

6. The electric machine of claim 5, wherein a surface of the fixed limit end facing the connecting rod makes a stop contact with the shield and comprises:

the limiting end socket is in stop contact with the protective cover;

the limiting boss is accommodated in the second mounting hole and the third mounting hole and connected with the limiting end, and the back of the limiting boss faces away from the end face of the limiting end and abuts against and contacts the motor body and faces the end face of the circuit board assembly.

7. The electric machine of claim 6 wherein the length of the limit boss is less than the sum of the axial length of the second mounting hole and the axial length of the third mounting hole.

8. The motor of claim 5, wherein the surface of the fixed limit end facing the connecting rod and/or the surface of the movable limit end facing the connecting rod are/is formed with anti-loose teeth;

the end face, back to the connecting rod, of the fixed limiting end is provided with an inwards-concave fastening groove, and the cross section surface of the fastening groove is non-circular.

9. The electric machine of claim 2, wherein the machine body comprises:

the front end cover is internally provided with a first mounting hole, and a part of the first mounting hole penetrates through the front end cover along the axial direction of the front end cover;

the other part of the first mounting hole is arranged in the rear end cover and penetrates through the rear end cover along the axial direction of the rear end cover, and the circuit board assembly is arranged on one side of the rear end cover, which is back to the front end cover;

a stator assembly disposed between the front end cap and the rear end cap;

a rotor assembly rotatably disposed within the stator assembly.

10. The electric machine of claim 9 wherein a side of the rear end cap facing the circuit board assembly has a support boss disposed about the first mounting hole, the circuit board assembly being supported on the support boss.

11. The electric machine of claim 9, wherein a side of the back end cap facing the stator assembly defines a mounting cavity adapted to mate with the stator assembly, an inner circumferential wall of the mounting cavity defining a clearance groove for spacing the inner circumferential wall of the mounting cavity from the stator assembly.

12. The electric machine of claim 11, wherein the clearance groove extends in an axial direction of the mounting cavity and is recessed in a radially outward direction of the mounting cavity, and the clearance groove communicates with the first mounting hole.

13. A washing machine, characterized by comprising a motor according to any one of claims 1-12.

Technical Field

The invention belongs to the technical field of motors, and particularly relates to a motor and a washing machine with the same.

Background

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 motor which has the advantages of fewer fastening structures, simple structure, low production cost and high assembly efficiency.

The invention also provides a washing machine with the motor.

An electric machine according to an embodiment of the first aspect of the invention comprises: motor body, circuit board subassembly, protection casing and connecting piece, circuit board subassembly establishes motor body's one end, the protection casing is established motor body one end and cover are established circuit board subassembly's at least partly, the connecting piece connects gradually motor body circuit board subassembly with the protection casing, and will the protection casing with circuit board subassembly connects on the motor body.

According to the motor provided by the embodiment of the invention, the motor body, the circuit board assembly and the protective cover are simultaneously connected by the connecting piece, so that the number of fastening structures is reduced and the number of connecting structures of the fastening pieces is reduced on the basis of ensuring the stable connection of all parts of the motor, the structural design of the motor can be simplified, the production cost of the motor is favorably reduced, the disassembly and assembly efficiency of the motor can be improved, and convenience is further provided for the assembly and maintenance of the motor. In addition, the circuit board assembly can be protected from being damaged by covering the circuit board assembly with the protective cover, and the service life of the circuit board assembly is prolonged.

According to the motor provided by the embodiment of the invention, the motor body is provided with a first mounting hole which penetrates through the motor body along the axial direction of the motor body, the circuit board assembly is provided with a second mounting hole, the protective cover is provided with a third mounting hole, one end of the second mounting hole is communicated with the first mounting hole, the other end of the second mounting hole is communicated with the third mounting hole, and the connecting piece penetrates through the third mounting hole and the second mounting hole in sequence and is connected in the first mounting hole.

According to an embodiment of the present invention, a side of the shield facing the circuit board assembly defines a relief groove in which the circuit board assembly is received, the circuit board assembly including: the circuit board is arranged in the clearance groove, the peripheral wall of the clearance groove surrounds the outer peripheral edge of the circuit board and is located on the outer side of the outer peripheral edge of the circuit board, and the circuit element is arranged on one side of the circuit board, facing the protective cover, and is contained in the clearance groove.

According to one embodiment of the invention, the inner peripheral wall of the clearance groove is provided with a limiting buckle clamped with the outer peripheral edge of the circuit board assembly.

According to one embodiment of the invention, the connector comprises: connecting rod, fixed spacing end and the spacing end of activity, the connecting rod runs through in proper order the third mounting hole the second mounting hole with first mounting hole, fixed spacing end is established the one end of connecting rod, the orientation of fixed spacing end the surface of connecting rod is ended the butt and is touched the protection casing, the spacing end movably cover of activity is established the other end of connecting rod, the orientation of the spacing end of activity the surface of connecting rod is ended the butt and is touched motor body, keeping away from of connecting rod the one end of fixed spacing end is equipped with the guide part, the diameter of guide part is from neighbouring the one end of connecting rod is to keeping away from the one end of connecting rod reduces gradually.

Further, a surface of the fixed limit end facing the link end is in stop contact with the shield and includes: spacing end and spacing boss, spacing end butt touches the protection casing, spacing boss holds the second mounting hole with in the third mounting hole and with spacing end links to each other, spacing boss's the back of the body is to the end face of spacing end butt touches motor body's orientation circuit board assembly's terminal surface.

Optionally, the length of the limiting boss is smaller than the sum of the axial length of the second mounting hole and the axial length of the third mounting hole.

According to one embodiment of the invention, the surface of the fixed limiting end facing the connecting rod and/or the surface of the movable limiting end facing the connecting rod are/is provided with anti-loosening teeth, the end surface of the fixed limiting end facing away from the connecting rod is provided with an inwards-concave fastening groove, and the cross section surface of the fastening groove is non-circular.

According to one embodiment of the present invention, the motor body includes: the front end cover is internally provided with a first mounting hole, the front end cover is axially penetrated through the front end cover, the rear end cover is internally provided with a second mounting hole, the rear end cover is axially penetrated through the rear end cover, the circuit board assembly is arranged on one side of the rear end cover, which is back to the front end cover, the stator assembly is arranged between the front end cover and the rear end cover, and the rotor assembly is rotatably arranged in the stator assembly.

Further, one side of the rear end cover facing the circuit board assembly is provided with a supporting boss, the supporting boss is arranged around the first mounting hole, and the circuit board assembly is supported on the supporting boss.

According to one embodiment of the invention, a side of the rear end cover facing the stator assembly defines a mounting cavity adapted to cooperate with the stator assembly, and an inner peripheral wall of the mounting cavity defines a clearance groove for spacing the inner peripheral wall of the mounting cavity from the stator assembly.

According to an embodiment of the invention, the clearance groove extends along an axial direction of the mounting cavity and is recessed along a radial direction of the mounting cavity, and the clearance groove is communicated with the first mounting hole.

A washing machine according to an embodiment of the second aspect of the present invention includes the motor according to the above-described embodiments.

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 view of a motor according to an embodiment of the present invention;

FIG. 2 is an assembly schematic of a motor according to an embodiment of the present invention;

fig. 3 is an exploded view of a motor according to an embodiment of the present invention;

fig. 4 is a partial cross-sectional view of a motor according to an embodiment of the present invention;

FIG. 5 is an enlarged view at A in FIG. 4;

FIG. 6 is a partial schematic structural view of a connector according to an embodiment of the present invention;

FIG. 7 is another angled view of the structure of FIG. 6;

FIG. 8 is a front view of the structure of FIG. 6;

FIG. 9 is a schematic diagram of a circuit board assembly according to an embodiment of the present invention;

FIG. 10 is a schematic structural view of a shield according to an embodiment of the invention;

FIG. 11 is another angled view of the structure of FIG. 10;

fig. 12 is a schematic view of a combined structure of a circuit board assembly and a shield cap according to an embodiment of the present invention;

FIG. 13 is an exploded view of the structure of FIG. 12;

FIG. 14 is a schematic structural view of a rear end cap according to an embodiment of the invention;

fig. 15 is another angled view of the structure of fig. 14.

Reference numerals:

100: a motor;

10: a motor body; 11: a front end cover; 12: a rear end cap; 121: supporting the boss;

122: a clearance groove; 123: an end cover plate; 124: a support pillar; 13: a stator assembly;

131: an empty avoiding groove; 14: a rotor assembly; 15: a first mounting hole;

20: a circuit board assembly; 21: a circuit board; 22: an electrical component; 23: a second mounting hole;

30: a protective cover; 31: a limiting buckle; 32: a third mounting hole;

40: a connecting member; 41: a connecting rod; 42: a movable limiting end; 43: fixing the limiting end;

431: a limiting end; 432: a limiting boss; 433: a fastening groove; 44: a guide portion.

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.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of 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.

An electric machine 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 15.

As shown in fig. 1 to 3, a motor 100 according to an embodiment of the present invention is adapted to be connected to a washing machine for powering the washing machine, wherein the motor 100 includes: a motor body 10, a circuit board assembly 20, a shield 30, and a connector 40.

Specifically, a motor shaft is disposed in the motor body 10, the motor body 10 may be formed in a cylindrical shape coaxially disposed with the motor shaft, and the circuit board assembly 20 is disposed at one end of the motor body 10, for example, the circuit board assembly 20 may be a front end in fig. 1, the motor shaft extends from a rear end of the motor body 10, and the circuit board assembly 20 may also be a rear end in fig. 1, the motor shaft extends from the front end of the motor body 10. The protection cover 30 is connected to the motor body 10, the protection cover 30 and the circuit board assembly 20 are disposed at the same end of the motor body 10, and the protection cover 30 covers at least a portion of the circuit board assembly 20, that is, the protection cover 30 can completely cover the circuit board assembly 20, and only the portion of the circuit board assembly 20 can be covered, thereby preventing the circuit board assembly 20 from being damaged.

The connecting member 40 sequentially connects the motor body 10, the circuit board assembly 20 and the shield 30, and connects the shield 30 and the circuit board assembly 20 to the motor body 10, that is, the connecting member 40 simultaneously connects the motor body 10, the circuit board assembly 20 and the shield 30 during assembly, and connects the motor body 10, the circuit board assembly 20 and the shield 30 together to complete the assembly of the motor 100.

Therefore, according to the motor 100 of the embodiment of the present invention, the connecting member 40 is used to simultaneously connect the motor body 10, the circuit board assembly 20 and the protective cover 30, so that the number of fastening structures is reduced and the number of fastening member connection structures is reduced on the basis of ensuring stable connection of the components of the motor 100, thereby simplifying the structural design of the motor 100, facilitating reduction of the production cost of the motor 100, improving the assembly and disassembly efficiency of the motor 100, and further providing convenience for assembly and maintenance of the motor 100.

In addition, the circuit board assembly 20 is covered by the protective cover 30, so that the circuit board assembly 20 is protected from being damaged, and the service life of the circuit board assembly 20 is prolonged.

According to the motor 100 of one embodiment of the present invention, the motor body 10 has the first mounting hole 15 penetrating through the motor body 10 along the axial direction thereof, the circuit board assembly 20 is provided with the second mounting hole 23, the shield 30 is provided with the third mounting hole 32, the second mounting hole 23 penetrates through the circuit board assembly 20 along the axial direction of the first mounting hole 15, the third mounting hole 32 penetrates through the shield 30 along the axial direction of the first mounting hole 15, and one end of the second mounting hole 23 communicates with the first mounting hole 15 and the other end communicates with the third mounting hole 32. The connector 40 passes through the third mounting hole 32 and the second mounting hole 23 in sequence and is connected in the first mounting hole 15, that is, the connector 40 passes through the third mounting hole 32 and the second mounting hole 23 and is connected to the motor body 10, thereby assembling the circuit board assembly 20 and the shield 30 on the motor body 10.

Wherein, first mounting hole 15, second mounting hole 23 and third mounting hole 32 mutually support and constitute an integral mounting hole along the axial extension of motor body 10, connecting piece 40 pegs graft in the integral mounting hole that makes up, not only can connect circuit board assembly 20 and protection casing 30 on motor body 10 steadily, and for among the prior art utilize the fastener to fasten motor body 10 earlier and accomplish the assembly then install circuit board assembly 20 on motor body 10 and reuse the fastener with protection casing 30 install on motor body 10, the use quantity of fastener has been reduced, the quantity of the fastening structure that the fastener corresponds has still been reduced, the structural design of motor 100 has been simplified, the degree of difficulty of production technology has been reduced, can further promote assembly efficiency.

As shown in fig. 10 to 13, according to one embodiment of the present invention, a side of the shield cap 30 facing the circuit board assembly 20 is defined with a clearance groove 131, and the circuit board assembly 20 is received in the clearance groove 131. The empty avoiding groove 131 is provided at a side of the shield cap 30 facing the circuit board assembly 20, and the empty avoiding groove 131 is recessed in a direction away from the circuit board assembly 20.

Therefore, not only can the occupied space of the circuit board assembly 20 and the protective cover 30 be reduced, and then the whole volume of the motor 100 is reduced, but also the circuit board assembly 20 can be covered by the protective cover 30, the circuit board assembly 20 is prevented from being damaged due to external collision, and the service life of the motor 100 is prolonged. And the electric shock accident caused by the contact of the working personnel and the circuit board assembly 20 when the motor 100 is used can be prevented, and the use safety of the motor 100 is improved.

As shown in fig. 9, according to one embodiment of the present invention, the circuit board assembly 20 includes: a wiring board 21 and circuit components, the wiring board 21 being formed as a flat plate, the circuit components being provided on the wiring board 21. The circuit board 21 is disposed in the clearance groove 131, the peripheral wall of the clearance groove 131 surrounds the outer peripheral edge of the circuit board 21, the outer peripheral edge of the clearance groove 131 is located outside the outer peripheral edge of the circuit board 21, that is, the circuit board 21 is completely accommodated in the clearance groove 131, the outer peripheral edge of the circuit board 21 abuts against the inner peripheral wall of the clearance groove 131, and the circuit components are disposed on the side of the circuit board 21 facing the shield 30 and accommodated in the clearance groove 131.

One side of the clearance groove 131 facing the motor body 10 is opened, the circuit components are accommodated in the clearance groove 131, and the circuit board 21 is disposed in the clearance groove 131 and closes the open opening of the clearance groove 131. Can prevent from this that circuit board assembly 20 from leaking when avoiding empty groove 131 and collision with other parts cause the damage, further prolong circuit board assembly 20's life, can guarantee moreover that circuit board 21 subassembly is wrapped up completely, prevent that the staff from touching, further promote safety in utilization.

As shown in fig. 10, in the present embodiment, the inner peripheral wall of the clearance groove 131 is provided with a limit buckle 31 which is clamped with the outer peripheral edge of the circuit board assembly 20. Spacing buckle 31 is established on the internal perisporium of protection casing 30 and along the radial inside protrusion of clearance groove 131, and when circuit board assembly 20 was held in clearance groove 131, the periphery of circuit board 21 was along the inboard of joint at spacing buckle 31 to with circuit board assembly 20 joint in clearance groove 131 from this.

By providing the limit buckle 31 on the inner peripheral wall of the clearance groove 131, the circuit board assembly 20 can be pre-installed in the shield 30 during the assembly of the motor 100, and the circuit board assembly 20 is prevented from being separated from the shield 30 during the assembly. The circuit board assembly 20 is prevented from being separated therefrom, not only the assembling stability of the motor 100 is improved, but also convenience can be provided for the assembling of the motor 100.

As shown in fig. 6 to 8, according to one embodiment of the present invention, the connection member 40 includes: a connecting rod 41 and a fixed limit end 43. Wherein the link 41 is formed in a rod shape extending along a straight line, and the link 41 passes through the third mounting hole 32, the second mounting hole 23, and the first mounting hole 15 in this order. Wherein, one end of the connecting rod 41 inserted in the first mounting hole 15 can be matched in the first mounting hole 15 through screw threads.

As shown in fig. 3, the connection member 40 may further include: spacing end 42 of activity, the one end that connecting piece 40 kept away from fixed spacing end 43 stretches out from the one end of first mounting hole 15 back to second mounting hole 23, spacing section of activity can be dismantled with connecting piece 40 and link to each other, for example, spacing section of activity can overlap and establish on connecting piece 40, and the internal perisporium of spacing section of activity passes through screw-thread fit with the periphery wall of connecting piece 40, spacing end 42 of activity and the screw-thread fit of connecting piece 40, moreover, the steam generator is simple in structure, and convenient for assembly has promoted the assembly efficiency of motor 100.

Further, when the connecting member 40 is inserted from the third mounting hole 32 and protrudes from the first mounting hole 15, the surface of the fixed stopper end 43 facing the link 41 abuts against the shield 30, and the surface of the movable stopper end 42 facing the link 41 abuts against the electric shock machine body 10; when the connector 40 is inserted from the first mounting hole 15 and protrudes from the third mounting hole 32, the surface of the fixed stopper 43 facing the link 41 is stopped against the electric shock machine body 10, and the surface of the movable stopper 42 facing the link 41 is stopped against the shield 30.

The fixed limiting end 43 is arranged at one end of the connecting rod 41, the movable limiting section is arranged at the other end of the connecting rod 41, convenience can be provided for assembling the connecting piece 40, the fixed limiting end 43 and the movable limiting end 42 are abutted to the two ends of the motor body 10 and the protective cover 30, and the motor 100 can be stably assembled.

Further, as shown in fig. 4 and 5, a surface of the fixing limit end 43 facing the link 41 comes into stop contact with the shield 30, and the fixing limit end 43 includes: the limiting head 431 is in stop contact with the protective cover 30, and the limiting boss 432 is accommodated in the second mounting hole 23 and the third mounting hole 32 and connected with the limiting head 431.

That is, the limiting boss 432 is connected between the connecting rod 41 and the limiting end 431, the limiting boss 432 is inserted into the second mounting hole 23 and the third mounting hole 32, the surface of the limiting end 431 facing the limiting boss 432 abuts against the outer surface of the protective cover 30, and the end surface of the limiting boss 432 facing away from the limiting end 431 abuts against the end surface of the electric contact body 10 facing the circuit board assembly 20.

When the connecting piece 40 is inserted into the first mounting hole 15, the second mounting hole 23 and the third mounting hole 32, the limiting boss 432 is abutted against the motor body 10, so that the assembly stability of the motor body 10 can be ensured, the motor body 10 is prevented from being broken down, and meanwhile, the limiting end 431 is abutted against the protective cover 30, so that the assembly stability of the protective cover 30 and the circuit board assembly 20 can be improved.

The end surface of the fixed limiting end 43, which faces away from the connecting rod 41, is provided with an inward-recessed fastening groove 433, and the cross-sectional surface of the fastening groove 433 is non-circular. Through setting up non-circular fastening groove 433, the staff can be pegged graft fastening connection spare 40 in fastening groove 433 with the instrument, simple structure, convenient operation.

Optionally, the length of the limiting boss 432 is smaller than the sum of the axial length of the second mounting hole 23 and the axial length of the third mounting hole 32, that is, when the connecting member 40 is connected in the first mounting hole 15, one end of the limiting boss 432 facing the connecting rod 41 abuts against the motor body 10, one end of the limiting end 431 facing the limiting boss 432 abuts against the shield 30, and since the length of the limiting boss 432 is shorter, the shield 30 and the circuit board assembly 20 can be stably connected to the motor body 10, the shield 30 and the circuit board assembly 20 are prevented from shaking relative to the motor body 10, and the stability of the motor 100 is improved.

In the present embodiment, the surface of the fixed stopper 43 facing the link 41 and/or the surface of the movable stopper 42 facing the link 41 are formed with anti-loose teeth, and the anti-loose teeth include a plurality of racks extending in the radial direction of the fixed stopper 43 or the movable stopper 42, and the plurality of racks are arranged in the circumferential direction of the fixed stopper 43 or the movable stopper 42. Through setting up locking tooth on the one hand can promote the assembly stability of connecting piece 40, prevent that connecting piece 40 from taking place relative rotation in the mounting hole, also can prevent simultaneously that spacing end 42 of activity from taking place relative rotation with connecting rod 41 and leading to connecting piece 40 not hard up, further promoted the assembly stability of motor 100.

As shown in fig. 7, according to an embodiment of the present invention, an end of the link 41 away from the fixed stopper end 43 is provided with a guide portion 44, the guide portion 44 extends in an axial direction of the link 41, and a diameter of the guide portion 44 is gradually reduced from an end adjacent to the link 41 to an end away from the link 41.

The connecting piece 40 utilizes the guide part 44 to extend into the third mounting hole 32, the second mounting hole 23 and the first mounting hole 15 in sequence at the front end, and because the front end diameter of the guide part 44 is smaller, the guide of the connecting piece 40 can be facilitated, the passing resistance of the connecting piece 40 in the mounting hole is favorably reduced, and the assembly efficiency is improved.

As shown in fig. 3, according to an embodiment of the present invention, the motor body 10 includes: a front end cap 11, a back end cap 12, a stator assembly 13, and a rotor assembly 14.

The front end cover 11 and the rear end cover 12 are formed into a ring shape and are coaxially arranged, the front end cover 11 and the rear end cover 12 are axially spaced, the stator assembly 13 is clamped between the front end cover 11 and the rear end cover 12, and the circuit board assembly 20 is arranged on one side of the rear end cover 12, which is opposite to the front end cover 11. A rotor cavity is defined in the stator assembly 13, one end of the stator cavity is communicated with the inner ring of the front end cover 11, the other end of the stator cavity is communicated with the inner ring of the rear end cover 12, the rotor assembly 14 is rotatably arranged in the rotor cavity, one end of the rotor assembly 14 is rotatably inserted in the inner ring of the front end cover 11, and the other end of the rotor assembly 14 is rotatably inserted in the inner ring of the rear end cover 12.

A part of the first mounting hole 15 is provided in the front end cover 11 and penetrates through the front end cover 11 in the axial direction of the front end cover 11, another part of the first mounting hole 15 is provided in the rear end cover 12 and penetrates through the rear end cover 12 in the axial direction of the rear end cover 12, and the central axis of the part of the first mounting hole 15 located in the front end cover 11 coincides with the central axis of the part located in the rear end cover 12. The connecting member 40 sequentially passes through the third mounting hole 32, the second mounting hole 23, the portion of the first mounting hole 15 located on the rear end cover 12, then passes through the portion of the first mounting hole 15 located on the front end cover 11, and finally is connected with the movable fixing end.

Utilize connecting piece 40 fastening front end housing 11, rear end housing 12, stator module 13 and rotor subassembly 14, can further reduce the quantity of fastening structure, simplify the structure setting of motor body 10, be favorable to reducing the manufacturing cost of motor 100, can promote dismouting efficiency moreover.

Optionally, a dodging groove is formed in the peripheral wall of the stator assembly 13, extends along the axial direction of the first mounting hole 15, and is recessed inwards along the peripheral wall of the electronic assembly, one end of the dodging groove is communicated with the portion, located in the front end cover 11, of the first mounting hole 15, and the other end of the dodging groove is communicated with the portion, located in the rear end cover 12, of the first mounting hole 15.

Through set up on stator module 13's periphery wall and dodge the groove, can provide accommodation space for connecting piece 40, prevent that the contact of connecting piece 40 and stator module 13's periphery wall or friction from causing the damage.

Further, as shown in fig. 4, 5, 14 and 15, a side of the rear cover 12 facing the circuit board assembly 20 has a support boss 121, the support boss 121 is disposed around the first mounting hole 15, the support boss 121 extends toward the circuit board assembly 20 along an axial direction of the first mounting hole 15, and the circuit board assembly 20 is supported on the support boss 121.

By providing the supporting boss 121 on the rear end cover 12 and supporting the circuit board assembly 20 by using the supporting boss 121, the acting force of the protective cover 30 and the circuit board assembly 20 clamped by the rear end cover 12 can be increased, which is beneficial to improving the assembly stability of the circuit board assembly 20 and can increase the distance between the circuit board assembly 20 and the rear end cover 12. On one hand, the clearance between the circuit board assembly 20 and the rear end cover 12 can promote ventilation, which is beneficial to improving the heat dissipation efficiency of the motor body 10 and the circuit board assembly 20, and on the other hand, the circuit board assembly 20 is prevented from being damaged by overhigh temperature of the motor body 10.

As shown in fig. 15, in the present embodiment, a side of the rear end cover 12 facing the stator assembly defines a mounting cavity adapted to cooperate with the stator assembly 13, the mounting cavity is open in a direction facing the stator assembly 13, and an end of the stator assembly 13 facing the rear end cover 12 extends into the mounting cavity during assembly of the electric machine 100. Be defined with on the internal perisporium of installation cavity and be used for keeping away empty recess 122 with the internal perisporium of installation cavity and stator module 13 spaced apart, that is to say, be defined with on the internal perisporium of installation cavity and keep away empty recess 122, keep away empty recess 13 and can keep apart the setting with the internal perisporium of installation cavity and stator module 13's periphery wall, not only can increase the internal diameter of installation cavity, or increase the diameter of the inscription circle of installation cavity, the holding power of installation cavity has been increased, assembly between stator module 13 and rear end cap 12 provides convenience, the assembly efficiency of motor 100 has been promoted, and can prevent to influence each other between rear end cap 12 and the stator module 13.

Further, as shown in fig. 15, a clearance groove 122 is provided at a position of the rear end cover 12 adjacent to the first mounting hole 15, the clearance groove 122 extends in the axial direction of the mounting cavity and is recessed in the radial outward direction of the mounting cavity, and the clearance groove 122 communicates with the first mounting hole 15. One side of the first mounting hole 15 facing the central axis of the rear end cover 12 is open, and the clearance groove 122 is located inside the first mounting hole 15 and communicates with the first mounting hole 15.

The rear end cover 12 includes an end cover plate 123 and a support column 124 connected to the end cover plate, the support column 124 is disposed on a side of the end cover plate 123 facing the stator assembly 13, the support column 124 extends in an axial direction of the end cover plate 123, and the first mounting hole 15 penetrates through the support column 124 in the axial direction of the support column 124. One end of the supporting column 124 is connected with the end cover plate 123, the other end of the supporting column 124 is in abutting fit with the stator assembly 13, the supporting column 124 comprises a plurality of supporting columns 124, the supporting columns 124 are arranged at intervals along the circumferential direction of the end cover plate 123, and one end of the stator assembly 13 facing the rear end cover 12 is arranged on the inner side of the supporting columns 124.

The side of the support column 124 facing the central axis of the end cover plate 123 is open, that is, the cross-sectional shape of the support column 124 is a part of a ring, and for example, may be a sector ring shape having a central angle greater than 180 °. The inner side of the ring shape defines the first mounting hole 15, and the gap of the ring shape is formed as a clearance groove 122. Therefore, the occupied space of the supporting column 124 can be reduced, and the inner peripheral wall of the supporting column 124 is prevented from being contacted with the stator assembly 13 to influence the assembly efficiency of the motor 100.

According to the washing machine of the second aspect of the present invention, including the motor 100 described in the above embodiment, by adopting the motor 100 in the above embodiment, the structural design of the washing machine can be simplified, which is advantageous to reduce the production cost of the washing machine, and the assembly efficiency of the washing machine can be improved.

Other configurations and operations of the washing machine according to the embodiment of the present invention 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 the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like 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.