CN202550752U

CN202550752U - Motor

Info

Publication number: CN202550752U
Application number: CN2012200779587U
Authority: CN
Inventors: 王胜利; 王绍华; 穆少军; 董连忠
Original assignee: Haier Group Corp; Zhangqiu Haier Electromotor Co Ltd
Current assignee: Haier Group Corp; Zhangqiu Haier Electromotor Co Ltd
Priority date: 2012-03-05
Filing date: 2012-03-05
Publication date: 2012-11-21
Anticipated expiration: 2022-03-05

Abstract

The utility model provides a motor. The motor comprises a front end cover, a back end cover and a stator assembly which is arranged between the front end cover and the back end cover. One sides of the front end cover and the back end cover which are opposite to the stator assembly are respectively provided with a location rabbet. A front end face and a back end face of the stator assembly are respectively clamped on the location rabbet, and a groove is arranged on one side of the location rabbet close to the stator assembly. By arranging the groove on the location rabbet, assembly accuracy of end covers of the motor and the stator assembly is improved.

Description

Motor

Technical field

The utility model relates to a kind of motor.

Background technology

For the end cap that improves the motor that is used for roller washing machine and the axiality between the field frame assembly, generally on the front end housing of motor and rear end cap respectively setting can be fastened on the positioning spigot on the field frame assembly.For example; Granted publication number discloses a kind of motor for the patent of CN201204499Y; Particularly; Front end housing with the contact-making surface of field frame assembly on be provided with positioning spigot, rear end cap with the contact-making surface of field frame assembly on be provided with positioning spigot, the front end face of field frame assembly and rear end face are installed on respectively on the positioning spigot of positioning spigot and rear end cap of front end housing.

Though adopt technique scheme can improve the axiality of electric motor end cap and field frame assembly; But; Because above-mentioned positioning spigot is formed at the bight of a relative side with field frame assembly of electric motor end cap usually; And this positioning spigot is small-sized, so the formed precision that on electric motor end cap, forms above-mentioned positioning spigot is had relatively high expectations.Yet; In the die casting production process of electric motor end cap, As time goes on, the mould of electric motor end cap has wearing and tearing in various degree; Cause to should fray can be on electric motor end cap; Particularly a side that matches with field frame assembly of positioning spigot is formed with outstanding structure, and this outstanding structure will reduce the assembly precision between electric motor end cap and field frame assembly.

The utility model content

In view of this, the main purpose of the utility model is, a kind of motor that can improve the assembly precision of electric motor end cap and field frame assembly is provided.

For achieving the above object; The utility model provides a kind of motor, said motor comprises front end housing, rear end cap, and is arranged at field frame assembly between the two; Side relative with said field frame assembly at said front end housing and rear end cap is respectively equipped with positioning spigot; The front end face of field frame assembly and rear end face are installed on respectively on this positioning spigot, it is characterized in that, are provided with groove in the side near said field frame assembly of said positioning spigot.

The side near said field frame assembly through at said positioning spigot is offered groove, even mould weares and teares like this, to should also can on electric motor end cap, not forming convexity by fray, then can not influence the assembly precision of electric motor end cap and field frame assembly.

Preferably, the front end face and the rear end face of said field frame assembly are square, and corresponding with this square bight, said positioning spigot is stuck in the outside in the bight of said field frame assembly.

Because said positioning spigot is stuck in the outside in the bight of said field frame assembly; Help said front end housing or rear end cap and said field frame assembly is circumferentially located; Make the two end cap of said motor aim at, can guarantee the axiality of said electric motor end cap and said field frame assembly with said field frame assembly.

Preferably, form the straight flange chamfering in the bight of said field frame assembly, this straight flange chamfering has two obtuse angles, and is corresponding with the position at one of them place, obtuse angle, on said positioning spigot, offers said groove.

Because on the mould of electric motor end cap; Wear and tear easily with the corresponding mould part in the bight of said field frame assembly; So in the utility model, corresponding with the corner shape of field frame assembly, on said positioning spigot, offer said groove; Thereby avoid on electric motor end cap, forming outstanding structure, help improving the assembly precision of electric motor end cap and said field frame assembly.

Preferably, be provided with toothed pad between the front end face of said front end housing and said field frame assembly or between the rear end face of said rear end cap and said field frame assembly.

Owing to be provided with toothed pad between the front end face of said front end housing and said field frame assembly or between the rear end face of said rear end cap and said field frame assembly; Then can guarantee two end caps of said motor and the parallelism precision of said field frame assembly mating surface, help improving the assembly precision of said motor through this toothed pad.

Description of drawings

Fig. 1 is the decomposing schematic representation of said motor;

Fig. 2 is the upward view of the front end housing of said motor;

Fig. 3 is the enlarged drawing at A place among Fig. 2;

Fig. 4 is the sectional view of the field frame assembly of said motor.

Embodiment

Below in conjunction with Fig. 1-Fig. 4 the embodiment of the said motor of the utility model is at length explained.

As shown in Figure 1, said motor comprises front end housing 1, field frame assembly 2 and rear end cap 3, and field frame assembly 2 is arranged between front end housing 1 and the rear end cap 3.Wherein, front end housing 1 is relative with the front end face of field frame assembly 2, and rear end cap 3 is relative with the rear end face of field frame assembly 2, and the front end face of this field frame assembly 2 and rear end face are square (as shown in Figure 4).In four corners of field frame assembly 2, offer four second through holes 21 along the thickness direction of field frame assembly 2.Corresponding with second through hole 21, offer four first through holes 11 in four bights of front end housing 1, offer four third through-holes 31 in four bights of rear end cap 3, and, on first through hole 11 and third through-hole 31, be formed with screw thread.One end of bolt 7 passes first through hole 11, second through hole 21 successively, and the two ends of this bolt 7 are rotatably connected in respectively on first through hole 11 and the third through-hole 31, and front end housing 1, field frame assembly 2 and rear end cap 3 are assembled together.Between first through hole 11 and second through hole 21, and between the third through-hole 31 and second through hole 21, be respectively arranged with toothed pad 8.Can guarantee the parallelism precision of mating surface of two end caps and the field frame assembly 2 of motor through toothed pad 8, help improving the assembly precision of motor.

As shown in Figure 2, corresponding with four bights of field frame assembly 2, be formed with positioning spigot 5 respectively in four bights of front end housing 1 and field frame assembly 2 relative sides, this positioning spigot 5 is stuck in the outside in the bight of field frame assembly 2.Be understood that, also form same positioning spigot at the rear end cap 3 of motor and four bights of field frame assembly 2 relative sides.Under motor was in confined state, the positioning spigot 5 on front end housing 1 and the rear end cap 3 was stuck in the outside of field frame assembly 2, circumferentially located with rear end cap 3 and field frame assembly 2 thereby help front end housing 1.

As shown in Figure 4, be formed with straight flange chamfering 22 respectively in four bights of field frame assembly 2, this straight flange chamfering 22 has two obtuse angles 23.As shown in Figure 3, corresponding with the position at one of them 23 place, obtuse angle, on positioning spigot 5, offer groove 6.Groove 6 is positioned at the side of positioning spigot 5 near field frame assembly 2, and this groove 6 is recessed towards the side away from field frame assembly 2.Owing on positioning spigot 5, offer groove 6; In the casting process of front end housing 1 and rear end cap 3; Even the mould of electric motor end cap weares and teares; Protruding to should fray also can on electric motor end cap, not forming, thus the front end housing 1 and the assembly precision of rear end cap 3 of motor can not influenced with field frame assembly 2.

The above is merely the preferred embodiment of the utility model;, in a word, not all within the spirit and principle of the utility model in order to restriction the utility model; Any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the utility model.

For example; In the above-described embodiments; As shown in Figure 1, the two ends that front end housing 1, field frame assembly 2 and rear end cap 3 pass first through hole 11, second through hole 21 and bolt 7 successively through bolt 7 are rotatably connected in respectively on first through hole 11 and the third through-hole 31 and are assembled together.Yet not limited thereto, front end housing 1, field frame assembly 2 and rear end cap 3 also can be realized connecting through other connectors, for example, and screw, bolt-nut etc.

Again for example, as shown in Figure 4 in the above-described embodiments, the cross section of field frame assembly 2 is square, yet not limited thereto, and the cross section of this field frame assembly also can be regular hexagon etc.

Claims

1. motor; Said motor comprises front end housing (1), rear end cap (3); And be arranged at field frame assembly (2) between the two, and being respectively equipped with positioning spigot (5) in the side relative of said front end housing (1) and rear end cap (3) with said field frame assembly (2), the front end face of field frame assembly (2) and rear end face are installed on respectively on this positioning spigot (5); It is characterized in that, be provided with groove (6) in the side near said field frame assembly (2) of said positioning spigot (5).

2. motor according to claim 1 is characterized in that, the front end face and the rear end face of said field frame assembly (2) are square, and is corresponding with this square bight, and said positioning spigot (5) is stuck in the outside in the bight of said field frame assembly (2).

3. motor according to claim 2; It is characterized in that; Bight at said field frame assembly (2) forms straight flange chamfering (22); This straight flange chamfering (22) has two obtuse angles (23), and is corresponding with the position at one of them obtuse angle (23) place, on said positioning spigot (5), offers said groove (6).

4. according to arbitrary described motor in the claim 1～3, it is characterized in that, be provided with toothed pad (8) between the front end face of said front end housing (1) and said field frame assembly (2) or between the rear end face of said rear end cap (3) and said field frame assembly (2).