CN202872480U

CN202872480U - Stator insulating framework

Info

Publication number: CN202872480U
Application number: CN2012204488171U
Authority: CN
Inventors: 刘珊; 王周叶; 张之元
Original assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Kaibang Motor Manufacture Co Ltd; Hefei Kaibang Motor Co Ltd; Henan Kaibang Motor Co Ltd; Chongqing Kaibang Motor Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Kaibang Motor Manufacture Co Ltd; Hefei Kaibang Motor Co Ltd; Henan Kaibang Motor Co Ltd; Chongqing Kaibang Motor Co Ltd
Priority date: 2012-09-04
Filing date: 2012-09-04
Publication date: 2013-04-10
Anticipated expiration: 2022-09-04

Abstract

The utility model provides a stator insulating framework, comprising an annular framework body made of an insulating material. The framework body is provided with buckles. The framework body comprises a slot insulating portion. Framework coiling slots are formed in the slot insulating portion. The insulating framework also comprises lock catches which can be separated with the framework body. The lock catches are matched with the buckles. Through arranging the buckles on the framework body and using a method of the lock catches matching the buckles to fix a circuit board, the framework body can fix the circuit board without making the buckles distort to apply pre-pressure on the circuit board, and location is firm and high in reliability, so that structural performance of the insulating framework is improved, and a problem that the insulating framework is easy to break when being installed after dipping paint is prevented. Loss rate of the framework body is reduced, and hidden danger of a motor is reduced. Simultaneously, structure and a processing technology of the framework body and the lock catches are relatively simple and are suitable for actual production.

Description

A kind of insulation frame for stator

Technical field

The utility model relates to a kind of insulation frame for stator, is used for realizing between stator core and winding enamelled wire insulation.

Background technology

At present, the stator of dc brushless motor mainly is comprised of stator core, insulation framework and winding enamelled wire etc., and insulation framework is used for realizing insulation between stator core and winding enamelled wire.Dc brushless motor adopts the winding mode of concentrating winding, can use the machine automatic winding, and the lead-out mode of its power line is different from the technology for binding of alternating current machine.

Usually brshless DC motor is the mode that connects by circuit board, is that enamelled wire is welded on the solder joint of circuit board 1 ', and power line is welded on another solder joint, connects with Copper Foil between two solder joints.As shown in Figure 1, in order to realize circuit board 1 ' fixing on insulation framework 2 ', be distributed with a plurality of buckles 3 ' on the insulation framework 2 ', fix circuit board 1 ' with buckle 3 ', the mode of this fixing circuit board needs buckle 3 ' to be broken into two with one's hands at every turn, then fix circuit board 1 ', complicated operation, and break off with the fingers and thumb buckle 3 ' disconnected easily, and because the skeleton snapped-in position need to have to circuit board 1 ' the effect ability fixing circuit board 1 ' of precompression, for preventing that circuit board 1 ' from rocking, buckle 3 ' will have certain strain, makes its secure fit.When fixing circuit board 1 ' for a long time, it is tired that buckle 3 ' can distortion occur, and the elasticity of snapped-in position can reduce, cause install bad.

The utility model content

The technical problem that the utility model mainly solves is the defective for prior art, a kind of insulation frame for stator that can firmly, reliably, easily circuit board be fixed on the skeleton body is provided, need not makes the buckle distortion that circuit board is produced precompression and fix circuit board.

For solving above-mentioned main technical problem, the utility model has adopted following technical scheme: design a kind of insulation frame for stator, comprise the cyclic skeleton body of being made by insulating material, have buckle on this skeleton body; Described skeleton body comprises the slot liner part, forms the backbone winding wire casing in the described slot liner part; Described insulation framework also comprises the snap close that can be separated with described skeleton body, and described snap close matches with described buckle.

Preferably, be distributed with a plurality of buckle boss on the described skeleton body, wherein be formed with a described buckle on each buckle boss.

Further, described buckle boss distributes around the outer edge part of an end face of described skeleton body, described buckle is protruding upward from the end face of described buckle boss, each buckle comprises root and is positioned at inboard grab and the outside grab at described root top, described root has perpendicular to described skeleton body internal face and outside wall surface radially, wherein, described inboard grab protrudes from described internal face with the direction towards the described skeleton body center of circle, and described outside grab protrudes from described outside wall surface with the direction away from the described skeleton body center of circle.

Further, two resilient barb about described snap close comprises, has lock buckling groove between described two resilient barb, when described snap close and described being clasped, described snap close is buckled in the position of described root, described root is stuck in the described lock buckling groove, and the shape of described lock buckling groove and described root is suitable.

Further, also be distributed with a plurality of support rims for the support circuit plate in the outer edge part of the described end face of described skeleton body, wherein the end face of at least a portion support rim is provided with the reference column that matches with location hole on the described circuit board.

The beneficial effects of the utility model are: by at the skeleton body buckle being set, and adopt the snap fit buckle in the mode of fixing circuit board, make the skeleton body can make the buckle distortion have precompression to fix circuit board to circuit board, firm position, reliability height, improved the structural behaviour of insulation framework, avoid insulation framework that easy fracture is installed behind dipping lacquer, reduced the proportion of goods damageds of insulation framework, reduced motor hidden danger; The structure of skeleton body and snap close is relative with processing technology simple simultaneously, is suitable for actual production.

Description of drawings

Fig. 1 is traditional insulation framework and the schematic diagram that cooperates of circuit board.

Fig. 2 is the stereogram of a kind of insulation framework of the present utility model.

Fig. 3 is the exploded view of the circuit board fixation structure of insulation framework shown in Figure 2.

Fig. 4 is the stereogram of skeleton body the first half ones of insulation framework shown in Figure 2.

Fig. 5 is the vertical view of the first half ones shown in Figure 4.

Fig. 6 is the outboard structure figure of one of them buckle boss of the first half ones shown in Figure 4.

Fig. 7 is the stereogram of the snap close of insulation framework shown in Figure 2.

Fig. 8 is snap close and the schematic diagram that cooperates of buckle.

Embodiment

Consult Fig. 2 and Fig. 3, a kind of insulation frame for stator of the present utility model comprises the skeleton body 1 made by insulating material and a plurality of snap closes 3 that can be separated with skeleton body 1, skeleton body 1 roughly in the form of a ring, snap close 3 is used for circuit board 2 is fixed on this skeleton body 1, and snap close 3 can be separated with circuit board 2.

Skeleton body 1 is combined by the first half ones 11 and the second half ones 12, the second slot liner part of the first slot liner part of the first half ones 11 and the second half ones 12 can mutually be socketed and form and insert the interior slot liner part 13 of stator core winding slot, described slot liner part 13 interior formation backbone winding wire casings 14.

As shown in Figure 4 and Figure 5, on an end face 4 of skeleton body 1, be distributed with a plurality of buckle boss 5 around its outer edge part, be formed with a buckle 6 on each buckle boss 5, each snap close 3 matches with one of them buckle 6, thereby circuit board 2 is fixed on the skeleton body 1.In addition, also be distributed with a plurality of support rims 7 for support circuit plate 2 in the outer edge part of end face 4, wherein the end face of a part of support rim 7 is provided with reference column 71, and circuit board 2 is provided with location hole.Reference column 71 matches with location hole, to prevent circuit board 2 transverse shifting occurs.

As shown in Figure 6, buckle 6 is protruding upward from the end face 51 of buckle boss 5, each buckle 6 comprises root 61 and is positioned at inboard grab 62 and the outside grab 63 at root 61 tops, root 61 has perpendicular to skeleton body 1 internal face 64 and outside wall surface 65 radially, wherein, inboard grab 62 protrudes from the internal face 64 of root 61 with the direction towards skeleton body 1 center of circle, and outside grab 63 protrudes from the outside wall surface 65 of root 61 with the direction away from skeleton body 1 center of circle." interior " described here, " outward " define according to its distance apart from skeleton body 1 center of circle, that is to say, the inboard grab 62 of buckle 6 is than the center of circle of outside grab 63 more close skeleton bodies 1, and internal face 64 is than the center of circle of outside wall surface 65 more close skeleton bodies 1.

As shown in Figure 7 and Figure 8, two

resilient barb

31,32 about described snap close 3 comprises, has lock buckling groove 33 between two

resilient barb

31,32, when snap close 3 cooperates with buckle 6, the root 61 of buckle 6 is stuck in the lock buckling groove 33 of snap close 3, and lock buckling groove 33 is suitable with the shape of root 61, so just make snap close 3 be buckled in root 61 positions of buckle 6, and be clipped between inboard grab 62, outside grab 63 and the circuit board 2 of buckle 6, inboard grab 62 and outside grab 63 can prevent snap close 3 longitudinally (axis direction of skeleton body 1) skid off from buckle 6.In addition, inboard grab 62 is used for blocking snap close 3, and it is loosening to avoid snap close 3 to produce between circuit board 2 and buckle 6; Outside grab 63 can prevent that then the rear portion of snap close 3 when snap close 3 is installed from making the rear portion of snap close 3 stick up and causing circuit board 2 loosening owing to the front portion is stressed.Two

resilient barb

31,32 can prevent snap close 3 along radially being pulled out easily of skeleton body 1 from buckle 6, thereby make snap close 3 firmly fix circuit board 2.

The assembly method of above-described embodiment is as follows:

1. the two half-unit of skeleton body 1 is inserted from the two ends of stator core respectively, be fitted to each other, then around enamelled wire;

2. circuit board 2 is installed on the skeleton body 1, then snap close 3 is installed so that circuit board 2 is fixing at buckle 6, the reference column 71 of skeleton body 1 inserts in the circuit board 2 corresponding location holes.

Above-described embodiment makes the skeleton fixing circuit board convenient reliable by changing skeleton body construction and circuit board fixation structure, and skeleton structure, processing technology are relatively simple, are beneficial to carry out actual processing.

Above-described only is preferred implementation of the present utility model; should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the present utility model design; can also make some distortion and improvement, these all belong to protection range of the present utility model.

Claims

1. an insulation frame for stator comprises the cyclic skeleton body of being made by insulating material, has buckle on this skeleton body; Described skeleton body comprises the slot liner part, forms the backbone winding wire casing in the described slot liner part; It is characterized in that: described insulation framework also comprises the snap close that can be separated with described skeleton body, and described snap close matches with described buckle.

2. insulation frame for stator according to claim 1 is characterized in that: be distributed with a plurality of buckle boss on the described skeleton body, wherein be formed with a described buckle on each buckle boss.

3. insulation frame for stator according to claim 2, it is characterized in that: described buckle boss distributes around the outer edge part of an end face of described skeleton body, described buckle is protruding upward from the end face of described buckle boss, each buckle comprises root and is positioned at inboard grab and the outside grab at described root top, described root has perpendicular to described skeleton body internal face and outside wall surface radially, wherein, described inboard grab protrudes from described internal face with the direction towards the described skeleton body center of circle, and described outside grab protrudes from described outside wall surface with the direction away from the described skeleton body center of circle.

4. insulation frame for stator according to claim 3, it is characterized in that: two resilient barb about described snap close comprises, has lock buckling groove between described two resilient barb, when described snap close and described being clasped, described snap close is buckled in the position of described root, described root is stuck in the described lock buckling groove, and the shape of described lock buckling groove and described root is suitable.

5. according to claim 3 or 4 described insulation frame for stators, it is characterized in that: the outer edge part at the described end face of described skeleton body also is distributed with a plurality of support rims for the support circuit plate, and wherein the end face of at least a portion support rim is provided with the reference column that matches with location hole on the described circuit board.