CN218071175U - Motor and washing machine - Google Patents

Abstract

The application discloses motor, be in including motor body and setting the motor end cover of motor body rear end, motor end cover middle part is provided with the baotou chamber, baotou chamber is used for fixed lock joint to be in motor body is last, baotou chamber face to be provided with the bearing room on motor body's the bottom surface, the indoor embedding piece that is provided with rather than the inner wall laminating of bearing, the embedding piece bottom with the laminating of bearing room bottom surface, the embedding piece deviates from the tip of bearing room bottom surface is the arc and expands outward and form the arc snap ring, the fixed joint of arc snap ring is in the ring channel of bearing room inner wall, the inside bearing that is used for of embedding piece. The motor arranged in the mode can achieve the purpose of preventing the bearing chamber from deforming or being damaged. The application also provides a washing machine provided with the motor.

Description

Motor and washing machine

Technical Field

The application relates to the technical field of washing machines, in particular to a motor. The present application also relates to a washing machine including the motor.

Background

The motor mainly comprises a stator core, a rotor core, an end cover, a rotating shaft, an enameled wire and the like, wherein the end cover is an important component of the motor, particularly a washing machine motor, the requirement for large load is high, and the quality of the end cover is directly related to the normal operation of the washing machine.

The motor of the washing machine, especially the pulsator washing machine, on the market at present, is installed on the washing machine base, the motor generally adopts the iron end cap or aluminium end cap, the iron end cap adopts the integrative punch forming of iron plate to form, there is a bearing chamber in the end cap, the bearing used for placing the motor spindle in the bearing chamber, in the course of rotating shaft, the bearing chamber usually needs to bear certain pressure, when there is certain machining error or assembly error in end cap or bearing chamber, the force that the bearing chamber receives will obviously increase, after using for a long time, may cause the bearing chamber to deform or damage, can't continue to use, and after the bearing chamber deforms or damages, usually adopt the method of changing the motor end cap, in order to guarantee the normal operation of the motor; however, the end caps and the bearing chambers are required to be high in precision, so that the end caps are difficult to process, and the cost for replacing the end caps is high.

Therefore, how to provide a motor capable of preventing the bearing chamber from being deformed or damaged is a technical problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the present application is to provide a motor that can prevent deformation or damage of a bearing housing. Another object of the present application is to provide a washing machine including the motor as described above.

For realizing above-mentioned purpose, this application provides a motor, be in including motor body and setting the motor end cover of motor body rear end, motor end cover middle part is provided with the baotou chamber, the baotou chamber is used for fixed lock joint to be in motor body is last, baotou chamber face to be provided with the bearing room on motor body's the bottom surface, the indoor embedding piece that is provided with rather than the inner wall laminating of bearing, the embedding piece bottom with the laminating of bearing room bottom surface, the embedding piece deviates from the tip of bearing room bottom surface is the arc and expands outward and form the arc snap ring, the fixed joint of arc snap ring is in the ring channel of bearing room inner wall, the inside bearing that is used for of embedding piece.

Preferably, the center of the bottom of the insert and the center of the bottom of the ferrule chamber are provided with openings, and the rotating shaft of the motor body is used for passing through the openings.

Preferably, the motor end cover further comprises fixing lugs symmetrically arranged on two sides of the packet head cavity and connected with the packet head cavity, the end faces of the fixing lugs facing the motor body are flush with the end face of the opening end of the packet head cavity, and the motor body is connected with the bottom plate of the washing machine through the fixing lugs and fixed on the bottom plate of the washing machine through a fixing piece.

Preferably, the fixing lug is provided with a mounting groove, a mounting boss is arranged on the periphery of the mounting groove, the thickness of the mounting boss is larger than that of the fixing lug, the end face of the mounting groove abuts against the end face of the washing machine bottom plate, the mounting groove is provided with the fixing piece, and the fixing piece is fixedly connected with the washing machine bottom plate.

Preferably, the fixed ear is along the periphery of the head covering cavity is circumferentially and uniformly provided with mounting holes, fasteners are arranged in the mounting holes, and the fasteners are used for fixedly connecting the motor end cover with the motor main body.

Preferably, a plurality of limiting columns are arranged on the end face, facing the motor main body, of the fixing lug, the limiting columns are distributed circumferentially, and the circle center of the circumference formed by the limiting columns is overlapped with the circle center of the bottom face of the ferrule cavity.

Preferably, the bottom surface of the head packaging cavity is provided with through axial heat dissipation holes, and the side wall of the head packaging cavity is provided with through circumferential heat dissipation holes.

Preferably, the side wall of the toe cap cavity is provided with an inward convex arc-shaped column protruding towards the inside of the toe cap cavity and an outward convex arc-shaped column protruding towards the outside of the toe cap cavity, the bottom of the toe cap cavity is provided with a connecting reinforcing rib, one end of the connecting reinforcing rib abuts against the outer wall of the bearing chamber, and the other end of the connecting reinforcing rib abuts against the inner wall of the toe cap cavity.

Preferably, an annular reinforcing rib connected with the outer wall of the ferrule cavity is arranged on the end face, away from the motor main body, of the fixing lug.

The application also provides a washing machine, which comprises a motor arranged on the washing machine, wherein the motor is any one of the motors.

Compared with the prior art, the embedded part is arranged in the bearing chamber, and the arc-shaped clamping ring expanded outwards at the upper part of the embedded part is clamped with the bearing chamber, so that the circumferential stress borne by the bearing chamber is released through the arc-shaped clamping ring, and the bearing chamber is prevented from being damaged due to overlarge stress; specific theory, the motor of this application includes motor body and the motor end cover of setting in motor body rear end, motor end cover middle part is provided with the baotou chamber, the baotou chamber is used for fixed lock joint in motor body, be provided with the bearing room on the bottom surface of baotou chamber face to motor body, the indoor embedding piece that is provided with rather than the inner wall laminating of bearing, the embedding bottom is laminated with the bearing room bottom surface, the tip that the embedding piece deviates from the bearing room bottom surface is the arc and expands outward and form the arc snap ring, the fixed joint of arc snap ring is in the ring channel of bearing room inner wall, the inside bearing that is used for placing of embedding piece.

The motor that sets up through above-mentioned mode, when the bearing room atress of motor was too big, at first with the power on the embedding piece, the embedding piece passes through the arc snap ring and decomposes partial circumference atress into the axial atress to reduce the circumference stress that the bearing room lateral wall received, play the effect of protection bearing room. The motor arranged in the mode can achieve the purpose of preventing the bearing chamber from deforming or being damaged.

The application also relates to a washing machine provided with the motor, so that the aim of preventing the bearing chamber of the motor of the washing machine from being deformed or damaged is fulfilled.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic cross-sectional structural view of a motor end cover of a motor provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of an insert of a motor provided in an embodiment of the present application;

fig. 3 is a left side view of a motor end cover of a motor provided in an embodiment of the present application;

fig. 4 is a right side view of a motor end cover of a motor provided in an embodiment of the present application;

fig. 5 is a schematic view of a half-section structure of a motor end cover and a motor main body of a motor provided in an embodiment of the present application after installation.

In the figure: 1. the motor end cover 2, the head covering cavity 3, the bearing chamber 4, the embedded part 5, the arc-shaped clamping ring 6, the annular groove 7, the fixing lug 8, the mounting groove 9, the mounting boss 10, the mounting hole 11, the fastening piece 12, the limiting column 13, the axial heat dissipation hole 14, the circumferential heat dissipation hole 15, the inward convex arc-shaped column 16, the outward convex arc-shaped column 17, the connecting reinforcing rib 18, the annular reinforcing rib 19, the motor main body 20 and the bearing.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In order to enable those skilled in the art to better understand the scheme of the present application, the present application will be described in further detail with reference to the accompanying drawings and the detailed description.

As shown in fig. 1 to 5, in the present embodiment, a motor is provided, where the motor includes a motor main body 19 and a motor end cover 1 disposed at a rear end of the motor main body 19, it should be noted that the motor main body 19 refers to other parts that are indispensable to the motor except for the motor end cover 1, and specific reference is made to the prior art, and details are not repeated here.

An open head covering cavity 2 is formed in the motor end cover 1, as shown in fig. 1 and 3, the head covering cavity 2 is used for being fixedly fastened on the motor main body 19, and the head covering cavity 2 can wrap the motor coil in the motor end cover 1 to prevent the enameled wire from being scratched. In addition, a bearing chamber 3 is provided on the bottom surface of the head housing 2 facing the motor main body 19, and in this embodiment, in order to prevent the bearing chamber 3 from being deformed or damaged, an insert 4 is provided in the bearing chamber 3 so as to be attached to the inner wall thereof.

Specifically speaking, insert 4 is the panel beating inserts, and 4 bottoms of insert are laminated with 3 bottom surfaces of bearing room, the tip that insert 4 deviates from 3 bottom surfaces of bearing room is the arc and expands outward and form arc snap ring 5, the fixed joint of arc snap ring 5 is in the ring channel 6 of 3 inner walls of bearing room, that is to say, insert 4 in this embodiment is outer horn shape, the part that expands outward in the outer horn is equivalent to arc snap ring 5, and, arc snap ring 5 passes through 6 joints of ring channel on 3 inner walls of bearing room, of course, 3 inner walls of bearing room also can be the setting of hook type, with arc snap ring 5 hook joint on 3 inner walls of bearing room, above-mentioned 4 inside bearings 20 that are used for of insert.

Through the motor that above-mentioned mode set up, when the bearing chamber 3 atress of motor is too big, at first with the power on insert 4, insert 4 passes through arc snap ring 5 with partial circumference atress decomposition for the axial atress to reduce the circumference stress that the 3 lateral walls of bearing chamber received, play the effect of protection bearing chamber 3, prevent that motor end cover 1 from taking place to warp or damaging, reduce the cost of changing motor end cover 1.

It should be noted that the motor end cover 1 is integrally injection-molded by using a BMC material, and the insert 1 is integrally molded after being inserted into the bearing chamber 3, and of course, there are various methods for processing and molding the motor end cover 1, which are not limited to the molding method described in the above embodiments, but it is necessary to ensure the connection stability between the insert 4 and the bearing chamber 3.

In addition, in this embodiment, in order to guarantee the mechanical strength of the bearing chamber 3, the outer diameter of the bearing chamber 3 is R18-R25 mm, preferably R22.5mm, the inner wall of the bearing chamber 3 is hook-shaped, the inner diameter of the opening is R16-R22 mm, preferably R19.5mm, the insert 4 is clasped by the bearing chamber 3, and the insert 4 is separately stamped, compared with the integral forming of the whole motor end cover 1, the precision of the bearing chamber 3 is greatly improved, and the dimensional qualification rate of the bearing chamber 3 is obviously improved.

Of course, the center of the bottom of the insert 4 and the center of the bottom of the ferrule chamber 2 are provided with openings through which the rotating shaft of the motor body 19 passes, and reference is made to the prior art, which will not be described herein again.

In order to ensure the installation and matching of the motor and the washing machine, fixing lugs 7 are symmetrically arranged on the motor end cover 1, the fixing lugs 7 are positioned at two sides of the head covering cavity 2 and are connected with the head covering cavity 2, the end surface of each fixing lug 7 facing the motor body 19 is flush with the end surface of the opening end of the head covering cavity 2, and the motor body 19 is fixedly connected with the bottom plate of the washing machine through the fixing lugs 7.

In addition, be provided with mounting groove 8 on the fixed ear 7, the mounting groove 8 periphery is provided with installation boss 9, and the thickness of installation boss 9 is greater than the thickness of fixed ear 7, and 8 terminal surfaces of mounting groove support with the terminal surface of washing machine bottom plate and hold, and mounting groove 8 is provided with the mounting to through mounting and washing machine bottom plate fixed connection.

Specifically, the semi-circular arc mounting groove 8 is a through hole, the depth of the groove is 6-12 mm, preferably 10mm, and the semi-circular arc radius R1 of the mounting groove 8 is equal to the hole radius of the mounting bottom plate of the washing machine; the inner diameter of the mounting boss 9 overlaps the mounting groove 8, the mounting boss 9 fits the washer fixing washer, the height of the mounting boss 9 protruding the fixing lug 7 is 1 to 5mm, preferably 2mm, the outer diameter R2 of the mounting boss 9 is related to the semi-circular arc radius R1 of the mounting groove 8, and the following relational expression R2= (1.5 to 3.8) R1, preferably 3.3R1 is provided. The design can replace a washing machine motor mounting cushion block, production and mounting efficiency is improved, and cost is saved.

Mounting holes 10 are uniformly distributed in the fixing lugs 7 along the periphery of the packet head cavity 2 in the circumferential direction, fasteners 11 are arranged in the mounting holes 10, and the motor end cover 1 and the motor main body 19 are fixedly connected through the fasteners 11; specifically speaking, the end face of the motor end cover 1 is provided with four mounting holes 10, the fasteners 11 are embedded in the mounting holes 10, the mounting mode solves the problem of bolt fastening of the aluminum end cover, the fasteners 11 can be bolts and nuts used in a matched mode, and can also be fixed in other modes, detailed description is omitted, and the motor end cover 1 is ensured to be stably connected with the motor main body 19.

In order to ensure that the motor end cover 1 is tightly matched with the iron core of the motor main body 19, the outside of the iron core of the motor main body 19 and the motor end cover 1 are externally positioned through a plurality of limiting columns 12, as shown in fig. 3 and 5, the positioning is carried out relative to the boss positioning of the end cover mounting hole or the matching positioning of the end cover spigot, and the mounting mode has high production efficiency and good mechanical performance; of course, the plurality of limiting columns 12 are distributed in a circumferential manner, and the center of the circle formed by the plurality of limiting columns 12 coincides with the center of the bottom surface of the ferrule cavity 2, so that the core of the motor main body 19 is accurately limited.

In order to improve the heat dissipation effect of the motor, the ferrule cavity 2 is provided with circumferential heat dissipation holes 14 and axial heat dissipation holes, the circumferential heat dissipation holes 14 are circumferentially and uniformly distributed and are positioned on the side wall of the ferrule cavity 2, the circumferential heat dissipation groove hole 13 is of a strip structure or an arch structure, the height of each heat dissipation hole is 12-17 mm, the preferred height is 15.8mm, and the width of each circumferential heat dissipation hole 14 is 45% -75% of the height. The axial heat dissipation holes 13 are uniformly distributed along the circumference and are positioned on the bottom surface of the head covering cavity 2, and the axial heat dissipation holes 13 are long holes with two arc-shaped ends and have the functions of heat dissipation and air gap detection.

In order to further increase the mechanical performance of the motor end cover 1, an inner protruding arc-shaped column 15, an outer protruding arc-shaped column 16 and a connecting reinforcing rib 17 are arranged in the head wrapping cavity 2, one end of the connecting reinforcing rib 17 abuts against the outer wall of the bearing chamber 3, and the other end abuts against the inner wall of the head wrapping cavity 2, as shown in fig. 3 and 4, the inner protruding arc-shaped column 15 is arranged in the bottom surface circle center direction of the head wrapping cavity 2 at 45 degrees, 135 degrees, 225 degrees and 315 degrees, and the outer protruding arc-shaped column 16 is arranged in the bottom surface circle center direction of the head wrapping cavity 2 at 0 degree, 90 degrees, 180 degrees and 270 degrees.

In addition, the end face of the fixing lug 7, which faces away from the motor main body 19, is provided with an annular reinforcing rib 18 connected with the outer wall of the ferrule cavity 2, the annular reinforcing rib 18 is distributed in a trapezoidal shape at two ends of the ferrule cavity 2, and the width of the annular reinforcing rib 18 is 3-5 mm, preferably 4mm, and the height of the annular reinforcing rib is 5-15 mm, preferably 11.5mm. The design improves the overall mechanical performance of the motor end cover 1, ensures that the motor is not damaged under full load and greatly improves the quality of the motor.

It should be noted that, specific parameters in the foregoing embodiments are not limited to the ranges of parameters given in the present embodiment, and may be adjusted according to actual needs, which all belong to the protection scope of the present application, and are not described in detail herein.

In addition, the invention provides a washing machine, which comprises the motor described in the above embodiments, and other parts of the washing machine can refer to the prior art, and will not be expanded herein.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The principles and embodiments of the present application are described herein using specific examples, which are only used to help understand the method and its core idea of the present application. It should be noted that, for those skilled in the art, without departing from the principle of the present application, the present application can also make several improvements and modifications, and those improvements and modifications also fall into the protection scope of the claims of the present application.

Claims (10)

1. The utility model provides a motor, is in including motor body and setting the motor end cover of motor body rear end, a serial communication port, motor end cover middle part is provided with the baotou chamber, baotou chamber is used for fixed lock joint to be in motor body is last, baotou chamber face to be provided with the bearing room on motor body's the bottom surface, the indoor embedding piece that laminates rather than the inner wall that is provided with of bearing, the embedding piece bottom with the laminating of bearing room bottom surface, the embedding piece deviates from the tip of bearing room bottom surface is the arc and expands outward and form the arc snap ring, the fixed joint of arc snap ring is in the ring channel of bearing room inner wall, the inside bearing that is used for of embedding piece.

2. The electric machine of claim 1 wherein the center of the bottom of the insert and the center of the bottom of the cartridge housing are provided with openings through which the shaft of the machine body passes.

3. The motor of claim 1, wherein the motor end cover further comprises fixing lugs symmetrically arranged on two sides of the packet head cavity and connected with the packet head cavity, an end surface of the fixing lug facing the motor body is flush with an end surface of an opening end of the packet head cavity, and the motor body is fixedly connected with a bottom plate of a washing machine through the fixing lugs.

4. The motor as claimed in claim 3, wherein the fixing lug is provided with a mounting groove, a mounting boss is arranged on the periphery of the mounting groove, the thickness of the mounting boss is greater than that of the fixing lug, the end surface of the mounting groove is abutted against the end surface of the washing machine bottom plate, and the mounting groove is provided with a fixing member and is fixedly connected with the washing machine bottom plate through the fixing member.

5. The motor of claim 3, wherein the fixing lugs are uniformly provided with mounting holes along the circumference of the head covering cavity, and fasteners are arranged in the mounting holes and fixedly connect the motor end cover with the motor main body.

6. The motor of claim 3, wherein a plurality of limiting columns are arranged on the end surface of the fixing lug facing the motor main body, the limiting columns are distributed circumferentially, and the circle center of the circumference formed by the limiting columns is coincident with the circle center of the bottom surface of the shell head cavity.

7. The electric machine of claim 1, wherein the bottom surface of the head wrapping cavity is provided with through axial heat dissipation holes, and the side wall of the head wrapping cavity is provided with through circumferential heat dissipation holes.

8. The motor of claim 1, wherein the side wall of the head-covering cavity is provided with an inward-convex arc-shaped column protruding towards the inside of the head-covering cavity and an outward-convex arc-shaped column protruding towards the outside of the head-covering cavity, and a connecting reinforcing rib is arranged at the bottom of the head-covering cavity, one end of the connecting reinforcing rib abuts against the outer wall of the bearing chamber, and the other end of the connecting reinforcing rib abuts against the inner wall of the head-covering cavity.

9. The motor of claim 3, wherein an annular reinforcing rib connected with the outer wall of the ferrule cavity is arranged on the end face of the fixing lug, which faces away from the motor main body.

10. A washing machine, characterized in that it comprises a motor according to any one of the preceding claims 1-9.

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