CN213402626U

CN213402626U - Motor structure of drum washing machine

Info

Publication number: CN213402626U
Application number: CN202022268483.7U
Authority: CN
Inventors: 卢平; 黄裕进; 莫宏伟; 黄垄
Original assignee: Zhongshan Broad Ocean Motor Co Ltd; Hubei Queen Ocean Electrical Appliance Manufacture Co Ltd
Current assignee: Zhongshan Broad Ocean Motor Co Ltd; Hubei Queen Ocean Electrical Appliance Manufacture Co Ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-06-08
Anticipated expiration: 2030-10-13

Abstract

The utility model discloses a motor structure of a drum washing machine, which comprises a plastic package motor and a rear mounting bracket arranged at the tail part of the plastic package motor, wherein the plastic package motor comprises a front end cover, a plastic package stator, a rotor and a rotating shaft; the rotary shaft is installed on the rotor, a cavity is formed in the middle of the plastic package stator, the rotor is arranged in the cavity, a front end cover is installed at the front end of the plastic package stator, a first bearing seat protrudes from the middle of the front end cover, a front bearing is installed in the first bearing seat, a second bearing seat protrudes from the bottom of the plastic package stator, a rear bearing is installed in the second bearing seat, the rotary shaft is supported on the front bearing and the rear bearing, a front installation foot protrudes from the lower portion of the front end cover, a rear installation foot protrudes from the rear installation support, the front installation foot corresponds to the rear installation foot in position, through the structure, the plastic package motor for the washing machine is formed by directly installing a support on the plastic package motor, the number of assembly parts of the motor is reduced, accordingly, the cost input of part processing dies is reduced, the installation steps are reduced.

Description

Motor structure of drum washing machine

The technical field is as follows:

the utility model relates to a drum type washing machine motor structure.

Background art:

currently, a drum washing machine has a rotating drum, and transmits power of a motor to the rotating drum by means of a belt and a pulley. The motor for washing machine is mainly a metal frame motor, and a small amount of plastic frame motors are also provided.

The existing plastic package motor generally comprises a front end cover, a plastic package sleeve, a stator assembly, a rotor assembly and a rear end cover, wherein the stator assembly and the rotor assembly are installed in the plastic package sleeve, the front end cover and the rear end cover are respectively installed at two ends of the plastic package sleeve, at least two independent supports are respectively installed on the front end cover and the rear end cover, so that a plastic package motor can be installed on a washing machine, the structural parts are various, the cost input of a processing die is increased, the installation steps are multiple, and the installation efficiency is reduced.

The invention content is as follows:

the utility model aims at providing a drum type washing machine motor structure can solve among the prior art plastic envelope motor part numerous and diverse, makes the cost input of mold processing big, and the installation step is many, the technical problem that the installation effectiveness is low.

The purpose of the utility model is realized by the following technical scheme.

A motor structure of a drum washing machine comprises a plastic package motor and a rear mounting bracket arranged at the tail part of the plastic package motor, wherein the plastic package motor comprises a front end cover, a plastic package stator, a rotor and a rotating shaft; the pivot is installed on the rotor, form the cavity in the middle of the plastic envelope stator, the cavity the inside is arranged in to the rotor, the front end of plastic envelope stator is open so that the cavity is placed to the rotor, install the front end housing at the front end of plastic envelope stator, the first bearing frame of protrusion outward in the middle of the front end housing, the front bearing is installed to first bearing frame the inside, there is the second bearing frame toward protrusion outward on the end plate of plastic envelope stator bottom, the rear bearing is installed to second bearing frame the inside, the pivot supports on front bearing and rear bearing, there are two spaced preceding installation feet in front end housing below protrusion, there are two spaced rear installation feet in rear installation support's below protrusion, preceding installation foot corresponds with rear installation foot position.

Preferably, the front end cap and the rear mounting bracket are made of a metal material.

Preferably, the front end cover comprises a front end plate and a front sleeve cylinder part extending from the edge of the front end plate along the axial direction of the front end cover, the plastic package stator comprises a stator core and a plastic package body plastically packaged on the outer surface of the stator core, a front spigot matched with the front sleeve cylinder part is arranged at the front end of the plastic package body, and the front sleeve cylinder part is sleeved on the front spigot so that the front end cover is sleeved on the plastic package stator.

Preferably, a plurality of fixed seats are circumferentially arranged on the outer surface of the plastic package body at intervals at positions close to the front spigot, and first through holes for first screws to pass through are formed in the fixed seats; the plastic packaging stator comprises a front sleeve part, a front sleeve part and a rear sleeve part, wherein the front sleeve part is arranged on the front sleeve part, the rear sleeve part is arranged on the rear sleeve part, the front sleeve part is arranged on the front sleeve part, the front sleeve part is arranged on the rear sleeve part, the front sleeve part is arranged on the front sleeve part.

Preferably, a plurality of reinforcing ribs are arranged on the outer end face of the front end plate, and the reinforcing ribs connect each mounting seat with the first bearing seat.

Preferably, the two front mounting legs are respectively connected with the two mounting seats through the first connecting plate group, and the front mounting legs are provided with first mounting holes for mounting with the washing machine.

Preferably, the rear mounting bracket comprises a rear end plate and a rear sleeve portion extending from the edge of the rear end plate along the axial direction of the rear mounting bracket, a rear spigot matched with the rear sleeve portion is arranged at the rear end of the plastic package body, and the rear sleeve portion is sleeved on the rear spigot so that the rear mounting bracket is sleeved on the plastic package stator.

Preferably, the plastic package stator and the rear mounting bracket are fixed together through a plurality of bolt assemblies, each bolt assembly comprises a second screw extending out of the plastic package body from the inside of the plastic package body and a nut screwed with the second screw, the second screws are circumferentially distributed on the plastic package body at intervals and distributed around the second bearing seat, a second through hole for the second bearing seat to pass through is formed in the rear end plate, second mounting holes for the second screws to pass through are circumferentially arranged at intervals around the second through hole, and the rear end plate is locked on the end portion of the plastic package body through the screwing of the nuts and the second screws.

Preferably, a plurality of positioning portions are arranged on the outer side surface of the second bearing seat at intervals, and a positioning groove matched with the positioning portions is formed on the side wall of the second through hole.

Preferably, the two rear mounting legs are respectively connected with the rear end plate through the second connecting plate group, the rear mounting legs and the rear end plate are vertically arranged, and third mounting holes for mounting with the washing machine are formed in the rear mounting legs.

Preferably, a plurality of mounting posts with screw holes are convexly arranged on the rear end plate, the mounting posts are circumferentially distributed on the edge of the rear end plate at intervals, and the mounting posts are used for mounting the control box.

Compared with the prior art, the utility model, following effect has:

1) a motor structure of a drum washing machine comprises a plastic package motor and a rear mounting bracket arranged at the tail of the plastic package motor, wherein the plastic package motor comprises a front end cover, a plastic package stator, a rotor and a rotating shaft; the rotary shaft is installed on the rotor, a cavity is formed in the middle of the plastic package stator, the rotor is arranged in the cavity, a front end cover is installed at the front end of the plastic package stator, a first bearing seat protrudes out from the middle of the front end cover, a front bearing is installed in the first bearing seat, a second bearing seat protrudes out of an end plate at the bottom of the plastic package stator, a rear bearing is installed in the second bearing seat, the rotary shaft is supported on the front bearing and the rear bearing, two spaced front installation legs protrude out of the lower portion of the front end cover, two spaced rear installation legs protrude out of the lower portion of a rear installation support, the positions of the front installation leg and the rear installation leg correspond to each other.

2) Other advantages of the present invention will be described in detail in the examples section.

Description of the drawings:

fig. 1 is a perspective view of a motor structure provided by the present invention;

fig. 2 is an exploded view of the motor structure provided by the present invention;

fig. 3 is an exploded view of the motor structure provided by the present invention from another angle;

fig. 4 is a perspective view of the motor structure provided by the present invention from another angle;

fig. 5 is a front view of the motor structure provided by the present invention;

FIG. 6 is a cross-sectional view A-A provided in FIG. 5;

fig. 7 is a perspective view of the front end cap provided by the present invention;

fig. 8 is a perspective view of the front end cap according to another angle provided by the present invention;

fig. 9 is a perspective view of the rear mounting bracket provided by the present invention.

The specific implementation mode is as follows:

the present invention will be described in further detail with reference to the following detailed description of preferred embodiments and accompanying drawings.

As shown in fig. 1 to 9, the present embodiment provides a motor structure of a drum washing machine, including a plastic package motor and a rear mounting bracket 1 mounted at the tail of the plastic package motor, where the plastic package motor includes a front end cover 2, a plastic package stator 3, a rotor 4 and a rotating shaft 5; the rotating shaft 5 is installed on the rotor 4, a cavity is formed in the middle of the plastic package stator 3, the rotor 4 is arranged in the cavity, the front end of the plastic package stator 3 is open so that the rotor 4 can be conveniently placed in the cavity, the front end of the plastic package stator 3 is provided with the front end cover 2, the middle of the front end cover 2 protrudes outwards to form a first bearing seat 21, a front bearing 6A is installed in the first bearing seat 21, a second bearing seat 31 protrudes outwards from an end plate at the bottom of the plastic package stator 3, a rear bearing 6B is installed in the second bearing seat 31, the rotating shaft 5 is supported on the front bearing 6A and the rear bearing 6B, two spaced front installation feet 22 protrude below the front end cover 2, two spaced rear installation feet 11 protrude below the rear installation support 1, the front installation feet 22 correspond to the rear installation feet 11 in position, the front installation feet 22 are provided with first installation holes 221 for installing with the washing machine, the rear installation feet 11 are provided with third installation holes 111 for installing with the washing machine, the front mounting leg 22 and the rear mounting leg 11 correspond in position, namely the circle center of the first mounting hole 221 and the circle center of the third mounting hole 111 are on the same connecting line, and through the structure, a support is directly additionally mounted on the plastic package motor to form the plastic package motor for the washing machine, so that the number of assembled parts of the motor is reduced, the cost input of a part processing die is reduced, the mounting steps are reduced, and the mounting efficiency is improved; in addition, the number of the assembly parts of the motor is reduced, the accumulated error of the motor during assembly can be reduced, and the installation precision error is less when the motor is installed in the drum washing machine, so that the drum washing machine has good use reliability, and the influence of shortened service life of a bearing and large vibration noise of the motor caused by large installation error of the motor and the drum washing machine can be reduced.

The front end cover 2 and the rear mounting bracket 1 are made of metal materials, preferably, the front end cover 2 and the two front mounting legs 22 are integrally formed by aluminum casting, the rear mounting bracket 1 and the two rear mounting legs 11 are also integrally formed by aluminum casting, the number of machining processes is increased, the manufacturing is simple and rapid, the manufacturing precision is high, the number of installed parts can be effectively reduced, and the mounting efficiency is improved.

The front end cover 2 comprises a front end plate 23 and a front sleeve barrel part 24 extending from the edge of the front end plate 23 along the axial direction of the front end cover 2, the plastic package stator 3 comprises a stator core 32 and a plastic package body 33 plastically packaged on the outer surface of the stator core 32, a front spigot 331 matched with the front sleeve barrel part 24 is arranged at the front end of the plastic package body 33, the front sleeve barrel part 24 is sleeved on the front spigot 331, the front end cover 2 is sleeved on the plastic package stator 3, the front spigot 331 is used for axially positioning the front end cover 2, the front end cover 2 and the plastic package stator 3 are convenient to mount, the motor is assembled more quickly and simply, and a grounding connecting plate 40 is arranged on the side surface of the front sleeve part 24.

Three fixed seats 332 are uniformly arranged on the outer surface of the plastic package body 33 at the positions close to the front spigot 331 at intervals in the circumferential direction, and first through holes 3321 for first screws to pass through are formed in the fixed seats 332; three mounting seats 241 are uniformly arranged on the outer side surface of the front sleeve part 24 at intervals in the circumferential direction, the mounting seats 241 and the fixed seat 332 are arranged in a one-to-one correspondence manner, screw holes 2411 for screwing with first screws are formed in the mounting seats 241, the first screws penetrate through first through holes 3321 of the fixed seat 332 and are in threaded connection with the first screw holes 2411 of the mounting seats 241, and the front end cover 2 is installed on the plastic package stator 3; of course, the mounting base 241 may also be provided with a third through hole, and the first screw sequentially passes through the first through hole 3321 of the fixing base 332 and the third through hole of the mounting base 241 and then is screwed with a nut 30, so that the front end cover 2 and the plastic stator 3 are locked together.

The outer end face of the front end plate 23 is provided with six reinforcing ribs 7, each two reinforcing ribs 7 form a group and are used for connecting each mounting seat 241 with the first bearing seat 21, specifically, the two reinforcing ribs 7 of each group are respectively arranged on two sides of one mounting seat 241, so that the mounting seat 241 is connected with the first bearing seat 21, the overall strength of the front end cover 2 can be improved, and the motor is more stable and reliable in use.

Two preceding installation feet 22 link together with two mount pads 241 among them through first connecting plate group 8A respectively, this first connecting plate group 8A includes first connecting bottom plate 81A and vertical first connecting side plate, second connecting side plate 82A that set up in first connecting bottom plate both sides respectively, wherein, the one end and the mount pad 241 of first connecting bottom plate are connected, and the terminal surface of first connecting bottom plate is close to or the parallel and level in the terminal surface of mount pad 241, the one end of first connecting side plate and the one end of second connecting side plate are connected with the strengthening rib 7 of this mount pad 241 both sides respectively, the other end of first connecting bottom plate, the other end of first connecting side plate and the other end of second connecting side plate are connected with preceding installation feet 22 respectively, the integrated into one piece's processing is convenient for this design, and make the structure of end cover compacter.

The rear mounting bracket 1 comprises a rear end plate 12 and a rear sleeve part 13 extending from the edge of the rear end plate 12 along the axial direction of the rear mounting bracket 1, a rear spigot 333 matched with the rear sleeve part 13 is arranged at the rear end of the plastic package body 33, the rear sleeve part 13 is sleeved on the rear spigot 333, so that the rear mounting bracket 1 is sleeved on the plastic package stator 3, the rear spigot 333 is used for axially positioning the rear mounting bracket 1, the mounting of the rear mounting bracket 1 and the plastic package stator 3 is facilitated, and the assembly of the motor is quicker and simpler.

The plastic package stator 3 and the rear mounting bracket 1 are fixed together through a plurality of bolt assemblies, each bolt assembly comprises a second screw 20 extending out of the plastic package body 33 from the inside of the plastic package body 33 and a nut 30 screwed with the second screw 20, the second screws 20 are circumferentially distributed on the plastic package body 33 at intervals and distributed around a second bearing seat 31, a second through hole 121 for the second bearing seat 31 to pass through is formed in the rear end plate 12, second mounting holes 122 for the second screws 20 to pass through are circumferentially arranged around the second through hole 121 at intervals, the rear end plate 12 is locked on the end part of the plastic package body 33 through the screwing of the nuts 30 and the second screws 20, the structure is simple, the mounting is convenient, and the connection mode of the screws and nuts 30 can enable the rear mounting bracket 1 to be stably mounted in the axial direction of the plastic package stator 3 and the dismounting is convenient.

The plurality of positioning parts 311 are arranged on the outer side surface of the second bearing seat 31 at intervals, and the side wall of the second through hole 121 is provided with the positioning groove 123 matched with the positioning parts 311, so that the positioning is simple and convenient, the repeated positioning degree of the disassembly and assembly is high, the rear mounting bracket 1 can be prevented from rotating around the tangential direction of the plastic package stator 3, and the assembly precision of the motor can be improved.

The two rear mounting feet 11 are respectively connected with the rear end plate 12 through a second connecting plate group 8B, the rear mounting feet 11 and the rear end plate 12 are vertically arranged, the second connecting plate group 8B comprises a second connecting bottom plate 81B, a third connecting side plate and a fourth connecting side plate 82B which are respectively vertically arranged at two sides of the second connecting bottom plate, wherein one end of the second connecting bottom plate is connected with the outer side surface of the rear sleeve part 13, the end surface of the second connecting bottom plate is close to or flush with the end surface of the rear end plate 12, the rear mounting feet 11 are connected with the other end of the second connecting bottom plate and are vertically arranged on the second connecting bottom plate, a first reinforcing rib 7 is arranged between the rear mounting feet 11 and the second connecting bottom plate, a second reinforcing rib 7 is arranged between the second connecting bottom plate and the rear sleeve part 13, the strength of the rear mounting feet 11 is improved, one end of the third connecting side plate and one end of the fourth connecting side plate extend to the end surface of the rear, the other end of the third connecting side plate and the fourth connecting side plate are connected with the outer side face of the rear mounting foot 11, the design facilitates the processing of integrated forming, and the structural strength is high.

A plurality of mounting posts 124 with screw holes 2411 are convexly arranged on the rear end plate 12, the mounting posts 124 are circumferentially distributed on the edge of the rear end plate 12 at intervals, and the mounting posts 124 are used for mounting a control box, so that the mounting is convenient and the structure is compact.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention are equivalent replacement modes, and are all included in the scope of the present invention.

Claims

1. A drum washing machine motor structure is characterized in that: the plastic package motor comprises a plastic package motor and a rear mounting bracket (1) arranged at the tail part of the plastic package motor, wherein the plastic package motor comprises a front end cover (2), a plastic package stator (3), a rotor (4) and a rotating shaft (5); the rotating shaft (5) is installed on the rotor (4), a cavity is formed in the middle of the plastic package stator (3), the rotor (4) is arranged in the cavity, the front end of the plastic package stator (3) is opened so that the rotor (4) can be placed in the cavity, the front end of the plastic package stator (3) is provided with the front end cover (2), the middle of the front end cover (2) protrudes outwards to form a first bearing seat (21), a front bearing (6A) is installed in the first bearing seat (21), the end plate at the bottom of the plastic package stator (3) protrudes outwards to form a second bearing seat (31), a rear bearing (6B) is installed in the second bearing seat (31), the rotating shaft (5) is supported on the front bearing (6A) and the rear bearing (6B), two spaced front installation feet (22) protrude below the front end cover (2), and two spaced rear installation feet (11) protrude below the rear installation support (1), the front mounting foot (22) corresponds to the rear mounting foot (11).

2. A drum washing machine motor structure as claimed in claim 1, characterized in that: the front end cover (2) and the rear mounting bracket (1) are made of metal materials.

3. A drum washing machine motor structure according to claim 1 or 2, characterized in that: front end housing (2) include front end plate (23) and from front end plate (23) edge along front sleeve section of thick bamboo portion (24) that the axial direction of front end housing (2) extended, plastic envelope stator (3) include stator core (32) and plastic envelope at the plastic envelope body (33) of stator core (32) surface, be provided with in the front end of plastic envelope body (33) with preceding sleeve section of thick bamboo portion (24) complex preceding tang (331), preceding sleeve section of thick bamboo portion (24) cover is established on preceding tang (331), make front end housing (2) cover establish on plastic envelope stator (3).

4. A drum washing machine motor structure as claimed in claim 3, characterized in that: a plurality of fixed seats (332) are circumferentially arranged on the outer surface of the plastic package body (33) at intervals at a position close to the front spigot (331), and first through holes (3321) for first screws to pass through are formed in the fixed seats (332); the plastic packaging stator comprises a front sleeve part (24), wherein a plurality of mounting seats (241) are circumferentially arranged on the outer side surface of the front sleeve part (24) at intervals, the mounting seats (241) and a fixing seat (332) are arranged in a one-to-one correspondence mode, screw holes (2411) used for being in threaded connection with first screws are formed in the mounting seats (241), the first screws penetrate through first through holes (3321) of the fixing seat (332) and are in threaded connection with the first screw holes (2411) of the mounting seats (241), and the front end cover (2) is installed on the plastic packaging stator (3).

5. A drum washing machine motor structure as claimed in claim 4, characterized in that: a plurality of reinforcing ribs (7) are arranged on the outer end face of the front end plate (23), and the reinforcing ribs (7) connect the mounting seats (241) and the first bearing seat (21).

6. A drum washing machine motor structure as claimed in claim 5, characterized in that: the two front mounting feet (22) are respectively connected with the two mounting seats (241) through the first connecting plate group (8A), and first mounting holes (221) used for being mounted with the washing machine are formed in the front mounting feet (22).

7. A drum washing machine motor structure as claimed in claim 3, characterized in that: the rear mounting support (1) comprises a rear end plate (12) and a rear sleeve portion (13) extending from the edge of the rear end plate (12) along the axial direction of the rear mounting support (1), a rear spigot (333) matched with the rear sleeve portion (13) is arranged at the rear end of the plastic package body (33), and the rear sleeve portion (13) is sleeved on the rear spigot (333) so that the rear mounting support (1) is sleeved on the plastic package stator (3).

8. A drum washing machine motor structure as claimed in claim 7, characterized in that: the plastic package stator (3) and the rear mounting bracket (1) are fixed together through a plurality of bolt assemblies, each bolt assembly comprises a second screw (20) extending out of the plastic package body (33) from the inside of the plastic package body (33) and a nut (30) screwed with the second screw (20), the second screws (20) are circumferentially distributed on the plastic package body (33) at intervals and distributed around a second bearing seat (31), a second through hole (121) for the second bearing seat (31) to pass through is formed in the rear end plate (12), second mounting holes (122) for the second screws (20) to pass through are circumferentially arranged at intervals around the second through hole (121), and the rear end plate (12) is locked on the end part of the plastic package body (33) through the screwing of the nuts (30) and the second screws (20).

9. A drum washing machine motor structure as claimed in claim 8, characterized in that: a plurality of positioning parts (311) are arranged on the outer side surface of the second bearing seat (31) at intervals, and positioning grooves (123) matched with the positioning parts (311) are formed in the side wall of the second through hole (121).

10. A drum washing machine motor structure as claimed in claim 9, characterized in that: the two rear mounting feet (11) are connected with the rear end plate (12) through the second connecting plate group (8B) respectively, the rear mounting feet (11) and the rear end plate (12) are vertically arranged, and third mounting holes (111) used for being mounted on the washing machine are formed in the rear mounting feet (11).

11. A drum washing machine motor structure as claimed in claim 10, characterized in that: a plurality of mounting columns (124) with screw holes are convexly arranged on the rear end plate (12), the mounting columns (124) are circumferentially distributed on the edge of the rear end plate (12) at intervals, and the mounting columns (124) are used for mounting the control box.