CN214255916U

CN214255916U - Direct current outer rotor motor support of fetching water

Info

Publication number: CN214255916U
Application number: CN202120054648.2U
Authority: CN
Inventors: 魏彬彬
Original assignee: Hefei Jun'an Electromechanical Equipment Co ltd
Current assignee: Hefei Jun'an Electromechanical Equipment Co ltd
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-09-21
Anticipated expiration: 2031-01-11

Abstract

The utility model discloses a direct current external rotor motor support of fetching water, be equipped with the support inside groove in the motor support, be equipped with the erection column in the support inside groove, be equipped with the mounting hole in the erection column, be equipped with the atress boss in the mounting hole, atress boss both ends all are equipped with oiliness bearing, be equipped with the motor shaft jointly in the oiliness bearing, be equipped with the circuit board in the support inside groove, circuit board one side is equipped with insulating frame under the stator and insulating frame on the stator, be equipped with the stator under the stator between the insulating frame and the insulating frame on the stator, insulating frame under the stator, insulating frame and the stator outside are equipped with cyclic annular magnetism circle on the stator, the cyclic annular magnetism circle outside is equipped with the rotor iron-clad, the rotor iron-clad is equipped with the rotor rubber-clad outward. The utility model discloses motor support structure is reliable, can effectively reduce the big quality of motor assembly in-process bearing axiality bad, has higher stability, and the motor is lubricated effectual, effectively reduces motor shaft's friction and damages, and it is good to rotate the roughness, has reduced the running noise.

Description

Direct current outer rotor motor support of fetching water

Technical Field

The utility model relates to a domestic appliance field specifically is a direct current external rotor motor support of fetching water.

Background

In the prior external rotor motors on the market, an oil-containing bearing is used for supporting a rotor, and because a rotating shaft is provided with only one fulcrum, the coaxiality of the rotor in the rotating process cannot be guaranteed, so that the quality defect can be caused.

In the motor support structure provided by patent publication No. CN208424042U, lubricating oil is stored between two oil-containing bearings, and the stored cavity through hole structure is used for providing lubrication between the bearings and the rotating shaft when the motor operates. However, the structure has limitation, in the general processing technology of the small micromotor, the motor vibration is reduced for reducing the motor running and rotating unbalance, the gap fit between the bearing and the shaft is mainly adjusted, the two key points of the coaxiality between the bearings ensure that the motor reduces the installation coaxiality of the two bearings in the assembling process, and therefore a new rotor support structure is adopted, the coaxiality of the bearing caused by installation can be effectively reduced in the installation process, and the product quality is improved on the installation level. Aiming at the situation, a direct-current outer rotor water-fetching motor support is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a direct current external rotor motor support of fetching water can effectively solve above-mentioned problem, the utility model discloses motor supporting structure is reliable, can effectively reduce the big quality of motor assembly in-process bearing axiality harmfully, has higher stability, and the motor is lubricated effectual, effectively reduces the friction damage of motor shaft, and it is good to rotate the roughness, has reduced the running noise.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides a direct current external rotor motor support of fetching water, direct current external rotor motor support of fetching water includes the motor support, be equipped with the support inside groove in the motor support, be equipped with the erection column in the support inside groove, be equipped with first mounting hole in the erection column, be equipped with the atress boss in the first mounting hole, atress boss both ends all are equipped with oiliness bearing, be equipped with the motor shaft jointly in the oiliness bearing, be equipped with the circuit board in the support inside groove, circuit board one side is equipped with insulating frame under the stator and insulating frame on the stator, be equipped with the stator between insulating frame under the stator and the insulating frame on the stator, insulating frame under the stator, insulating frame on the stator and the stator outside are equipped with cyclic annular magnetism circle, the cyclic annular magnetism circle outside is equipped with the rotor iron casing, the rotor iron casing is equipped with the rotor and glues the shell, rotor and motor shaft one end fixed connection, motor shaft one end is equipped with the reticulation.

Furthermore, reticulate patterns are arranged at one end of the motor rotating shaft, wire outlet holes are formed in the motor support, mounting lugs are arranged at two ends of the motor support, and fixing holes are formed in the mounting lugs.

Furthermore, the circuit board central point puts and is equipped with first trompil, and the first trompil is passed to the erection column, and the circuit board is fixed with the erection column and is cooperated.

Furthermore, be equipped with the first stationary blade of axial distribution under the stator on the insulating frame, insulating frame central point puts under the stator and is equipped with the second trompil, and the erection column passes the second trompil, insulating frame and erection column fixed coordination under the stator.

Furthermore, the stator is provided with axially distributed slots and axially distributed slot teeth, the slot teeth are provided with stator coils, the center position of the stator is provided with a third hole, the mounting column penetrates through the third hole, the stator is fixedly matched with the mounting column, the first fixing sheet is arranged in the slots, so that the lower insulating frame of the stator is fixed with the stator, and the stator is provided with one of 4 slot teeth, 6 slot teeth and 12 slot teeth.

Furthermore, the stator is provided with a second fixing piece which is axially distributed on the insulating frame, a fourth opening is formed in the center of the insulating frame, the mounting column penetrates through the fourth opening, and the insulating frame is fixedly matched with the mounting column.

Furthermore, the annular magnetic ring is wrapped in the rotor iron shell and fixedly connected with the rotor iron shell.

Furthermore, the annular magnetic ring is magnetized by a plastic magnetic material, the number of the magnetized poles is one of 4, 8, 10 and 14, and the tooth of the single motor core slot used for direct-current brushless outer rotor water beating preferentially matches one of 4 slots, 8 poles, 4 slots, 12 poles, 6 slots, 4 poles, 12 slots, 8 poles, 12 slots, 10 poles and 12 slots, 14.

Furthermore, a rubber shell inner groove is formed in the rotor rubber shell, a fixing column is arranged at the center of the rubber shell inner groove, second mounting holes are formed in the fixing column, fixing convex strips which are axially distributed are arranged on the periphery of the rubber shell inner groove, the rotor iron shell is mounted in the rubber shell inner groove, the rotor iron shell is fixed through the fixing convex strips, and the motor rotating shaft is fixed with the second mounting holes in the reticulate pattern through an injection molding process, so that the motor rotating shaft and the rotor rubber shell are fixedly connected.

Further, the motor support, the lower stator insulating frame, the upper stator insulating frame and the rotor rubber shell are made of insulating plastics, and the stator is made of silicon steel sheets.

The utility model has the advantages that:

1. the motor bracket of the utility model has reliable structure, can effectively reduce the bad quality of large bearing coaxiality in the motor assembling process, and has higher stability;

2. the utility model discloses the motor is lubricated effectual, effectively reduces the friction damage of motor shaft, and it is good to rotate the roughness, has reduced the running noise.

Drawings

The present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a sectional view of the structure of the motor of the present invention;

fig. 2 is a schematic view of the structure of the motor of the present invention;

fig. 3 is a schematic diagram of the explosion structure of the motor of the present invention;

FIG. 4 is a schematic view of a motor part of the present invention;

fig. 5 is a schematic view of the structure of the motor bracket of the present invention;

fig. 6 is a schematic view of the structure of the motor bracket of the present invention;

fig. 7 is a sectional view of the motor support structure of the present invention;

FIG. 8 is an exploded view of the motor of the present invention;

fig. 9 is a schematic diagram of the tooth number matching of the stator and rotor slots of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

A direct-current outer rotor water-fetching motor support comprises a motor support 2, as shown in fig. 1-9, a bracket inner groove 27 is provided in the motor bracket 2, a mounting post 26 is provided in the bracket inner groove 27, a first mounting hole 24 is provided in the mounting post 26, a stress boss 25 is provided in the first mounting hole 24, both ends of the stress boss 25 are provided with oil-containing bearings 7, a motor rotating shaft 1 is provided in the oil-containing bearings 7, a circuit board 3 is provided in the bracket inner groove 27, a stator lower insulating frame 4 and a stator upper insulating frame 6 are provided on one side of the circuit board 3, a stator 5 is provided between the stator lower insulating frame 4 and the stator upper insulating frame 6, an annular magnetic ring 8 is provided on the outer sides of the stator lower insulating frame 4, the stator upper insulating frame 6 and the stator 5, a rotor iron shell 81 is provided on the outer side of the annular magnetic ring 8, a rotor rubber shell 9 is provided outside the rotor iron shell 81, and the rotor rubber shell 9 is fixedly connected with one end of the motor rotating shaft 1.

Moire 11 is equipped with to 1 one end of motor shaft, is equipped with wire hole 21 on the motor support 2, and motor support 2 both ends are equipped with installation ear 22, all are equipped with fixed orifices 23 on the installation ear 22.

The central position of the circuit board 3 is provided with a first opening 31, the mounting post 26 passes through the first opening 31, and the circuit board 3 is fixedly matched with the mounting post 26.

Be equipped with the first stationary blade 41 of axial distribution under the stator on the insulating frame 4, insulating frame 4 central point puts under the stator and is equipped with second trompil 42, and second trompil 42 is passed to erection column 26, insulating frame 4 and erection column 26 fixed coordination under the stator.

The stator 5 is provided with axially distributed slots 51 and axially distributed slot teeth 52, the slot teeth 52 are provided with stator coils 54, the center of the stator 5 is provided with a third open hole 53, the mounting post 26 passes through the third open hole 53, the stator 5 is fixedly matched with the mounting post 26, the first fixing piece 41 is arranged in the slot 51, so that the lower insulating frame 4 of the stator is fixed with the stator 5;

the stator has 4 slot teeth/6 slot teeth/12 slot teeth, 4 slot teeth are shown.

Be equipped with axially distributed's second stationary blade 61 on the stator on the insulating frame 6, insulating frame 6 central point puts on the stator and is equipped with fourth trompil 62, and fourth trompil 62 is passed to erection column 26, insulating frame 6 and erection column 26 fixed coordination on the stator.

The annular magnetic ring 8 is wrapped in the rotor iron shell 81, and the annular magnetic ring 8 is fixedly connected with the rotor iron shell 81;

the annular magnetic ring 8 is magnetized by plastic magnetic materials, the number of magnetized poles is 4/8/10/14, and the annular magnetic ring is used for preferentially matching the groove teeth of the single motor core and the magnetic poles of the rotor in direct-current brushless outer rotor water-beating: 4 grooves 4 poles, 4 grooves 8 poles and 4 grooves 12 poles; 6 slots 4 poles, 12 slots 8 poles, 12 slots 10 poles, 12 slots 14 poles.

Be equipped with in the rotor gluey shell 9 and glue shell inside groove 91, glue shell inside groove 91 central point and put and be equipped with fixed column 92, be equipped with second mounting hole 93 in the fixed column 92, glue shell inside groove 91 and be equipped with the fixed sand grip 94 of axial distribution all around, rotor iron-clad 81 is installed in gluing shell inside groove 91, and fixed sand grip 94 fixes rotor iron-clad 81, and motor shaft 1 is fixed through the technology of moulding plastics with second mounting hole 93 in reticulation 11 department, makes motor shaft 1 and rotor gluey shell 9 fixed connection.

The motor support 2, the stator lower insulating frame 4, the stator upper insulating frame 6 and the rotor rubber shell 9 are made of insulating plastics, and the stator 5 is made of silicon steel sheets.

The space enclosed by the two oil-containing bearings 7 and the motor rotating shaft 1 is filled with lubricating oil, when the motor rotating shaft 1 rotates, lubricating grease can permeate into a gap between the oil-containing bearing 7 and the motor rotating shaft 1, the oil-containing bearing 7 and the motor rotating shaft 1 are continuously lubricated, the normal rotation of the oil-containing bearing 7 and the motor rotating shaft 1 is ensured, the friction damage is reduced, the motor support 2 is a plastic part, the motor support 2 can contract in the injection molding process, the larger the size is, the larger the size error caused by the contraction is, the larger the deformation of the motor support 2 causes the coaxiality of the oil-containing bearings 7 at two ends to be increased, the stress boss 25 is a plane, the stress face of the stress boss 25 is a plane when the oil-containing bearing 7 is pressed, and the oil-containing bearing 7 avoids the non-plane position caused by the plastic injection molding contraction of the motor support 2.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. A DC outer rotor water-beating motor support comprises a motor support (2) and is characterized in that a support inner groove (27) is arranged in the motor support (2), a mounting column (26) is arranged in the support inner groove (27), a first mounting hole (24) is arranged in the mounting column (26), a stress boss (25) is arranged in the first mounting hole (24), oil-containing bearings (7) are arranged at two ends of the stress boss (25), a motor rotating shaft (1) is jointly arranged in the oil-containing bearings (7), a circuit board (3) is arranged in the support inner groove (27), a stator lower insulating frame (4) and a stator upper insulating frame (6) are arranged at one side of the circuit board (3), a stator (5) is arranged between the stator lower insulating frame (4) and the stator upper insulating frame (6), and annular magnetic rings (8) are arranged at the outer sides of the stator lower insulating frame (4), the stator upper insulating frame (6) and the stator (5), a rotor iron shell (81) is arranged on the outer side of the annular magnetic ring (8), a rotor rubber shell (9) is arranged outside the rotor iron shell (81), the rotor rubber shell (9) is fixedly connected with one end of the motor rotating shaft (1), and a reticulate pattern (11) is arranged at one end of the motor rotating shaft (1).

2. The direct-current outer rotor water beating motor support frame as claimed in claim 1, wherein a reticulate pattern (11) is arranged at one end of the motor rotating shaft (1), a wire outlet hole (21) is formed in the motor support frame (2), mounting lugs (22) are arranged at two ends of the motor support frame (2), and fixing holes (23) are formed in the mounting lugs (22).

3. The bracket for the direct-current external rotor water-fetching motor is characterized in that a first opening hole (31) is formed in the center of the circuit board (3), the mounting column (26) penetrates through the first opening hole (31), and the circuit board (3) is fixedly matched with the mounting column (26).

4. The bracket for the direct-current outer rotor water-beating motor is characterized in that first fixing plates (41) which are axially distributed are arranged on the lower stator insulation frame (4), a second opening (42) is formed in the center of the lower stator insulation frame (4), the mounting column (26) penetrates through the second opening (42), and the lower stator insulation frame (4) is fixedly matched with the mounting column (26).

5. The bracket for the direct-current outer rotor water-beating motor is characterized in that axially distributed slots (51) and axially distributed slot teeth (52) are formed in the stator (5), stator coils (54) are arranged on the slot teeth (52), a third open hole (53) is formed in the center of the stator (5), the mounting column (26) penetrates through the third open hole (53), the stator (5) is fixedly matched with the mounting column (26), the first fixing piece (41) is installed in the slots (51) to fix the lower insulating frame (4) of the stator with the stator (5), and the stator is provided with one of 4 slot teeth, 6 slot teeth and 12 slot teeth.

6. The support of the direct-current outer rotor water-beating motor is characterized in that second fixing pieces (61) which are axially distributed are arranged on the upper insulating frame (6) of the stator, a fourth opening (62) is formed in the center of the upper insulating frame (6) of the stator, the mounting column (26) penetrates through the fourth opening (62), and the upper insulating frame (6) of the stator is fixedly matched with the mounting column (26).

7. The direct-current outer rotor water beating motor support frame as claimed in claim 1, wherein the annular magnetic ring (8) is wrapped in the rotor iron shell (81), and the annular magnetic ring (8) is fixedly connected with the rotor iron shell (81);

the annular magnetic ring (8) is magnetized by a plastic magnetic material, the number of magnetized poles is one of 4, 8, 10 and 14, and the annular magnetic ring is used for preferentially matching one of 4-slot 4 poles, 4-slot 8 poles, 4-slot 12 poles, 6-slot 4 poles, 12-slot 8 poles, 12-slot 10 poles and 12-slot 14 poles with rotor magnetic poles of a single motor core for direct-current brushless outer rotor water fetching.

8. The bracket for the direct-current outer rotor water beating motor is characterized in that a rubber casing inner groove (91) is formed in the rotor rubber casing (9), a fixing column (92) is arranged at the center of the rubber casing inner groove (91), second mounting holes (93) are formed in the fixing column (92), fixing convex strips (94) which are axially distributed are arranged on the periphery of the rubber casing inner groove (91), the rotor iron casing (81) is mounted in the rubber casing inner groove (91), the fixing convex strips (94) fix the rotor iron casing (81), and the motor rotating shaft (1) is fixed with the second mounting holes (93) at the reticulate (11) through an injection molding process, so that the motor rotating shaft (1) is fixedly connected with the rotor rubber casing (9).

9. The direct-current outer rotor water beating motor support as claimed in claim 1, wherein the motor support (2), the stator lower insulation frame (4), the stator upper insulation frame (6) and the rotor rubber shell (9) are made of insulating plastic, and the stator (5) is made of silicon steel sheets.