CN104300705A

CN104300705A - Motor stator

Info

Publication number: CN104300705A
Application number: CN201410624110.5A
Authority: CN
Inventors: 李明武; 谢志明; 周波
Original assignee: Zhejiang Zobow Mechanical and Electrical Tech Co Ltd
Current assignee: Zhejiang Zobow Mechanical and Electrical Tech Co Ltd
Priority date: 2014-10-31
Filing date: 2014-10-31
Publication date: 2015-01-21

Abstract

The invention discloses a motor stator which comprises an iron core, a coil and a framework, wherein a through hole is formed in the center of the iron core, and a plurality of wire slot bodies convenient to wind the coil are formed in the inner wall of the framework. The motor stator is characterized in that the framework is subjected to integral injection molding and is molded in the through hole of the iron core. A plurality of threading grooves convenient for threading are formed in the edge of the obverse side of the framework, and a wiring slot used for containing a coil leading-out wire is formed in the reverse side of the framework. The framework of the stator is integrally molded, so that the motor stator is simple in structure and saves mounting process. The motor stator has the advantages of improving the motor performance and reducing damage of enameled wires during operation. The motor stator belongs to the technical field of motors.

Description

Motor stator

Technical field

The invention belongs to technical field of motors, more particularly, it relates to a kind of motor stator.

Background technology

Stator is the actionless part of motor.Stator by stator core, stator winding and support three part form.The Main Function of stator produces rotating magnetic field, and the Main Function of rotor is by magnetic force line cutting and then generation (output) electric current in rotating magnetic field.

Stator is usually primarily of compositions such as iron core, coil, skeletons.There is following defect in current stator structure:

1, skeleton is divided into the left half and the right half two parts to form, mutual grafting is arranged on core interior, and because the left half and the right half splicing position thickness is thicker, therefore this part will be lacked relative to other position coiling amounts, backbone winding line use ratio with size is on the low side, and power can be a little bit smaller.

2, skeleton the left half and the right half install in conjunction with time, certain error can be there is after all during installation, between skeleton the left half and the right half, certain gap can be there is, easily cause the enamelled wire of gap location to contact with iron core, if enamelled wire is damaged, the generation of the phenomenon such as so can cause that motor punctures.

3, skeleton is shaping separately by the left half and the right half, then is assemblied in together in iron core simultaneously, installs more complicated, and accurately cannot control the accurate location of the relative iron core of the left half and the right half, easily cause and assemble unsuccessfully, reduce conforming product rate.

4, skeleton edges is arranged in closing, and during threading, needs to pass around skeleton from the top of skeleton edges, the process of interference coiling; After coiling, the lead-out wire of enamelled wire is around the periphery bottom skeleton, and be easy to cause enamelled wire to damage in motor installation process, the enamelled wire after breakage contacts with iron core, the generation of the phenomenon such as cause that motor punctures.

Summary of the invention

For the deficiency that prior art exists, the object of the present invention is to provide a kind of motor stator, overall coiling amount can be increased and improve motor performance, ensure that skeleton improves conforming product rate at core interior accurate location.

For achieving the above object, the invention provides following technical scheme: a kind of motor stator, comprise iron core, coil, skeleton, core center is provided with perforation, inboard wall of skeleton is provided with multiplely is convenient to coil wire casing body around the home, it is characterized in that: described skeleton integrated injection molding, and injection mo(u)lding is in the perforation of iron core.

Further improvement, described skeleton leading-out terminal is provided with the trough for accommodating lead-out wires of coil.

Further improvement, described skeleton inlet wire port is provided with multiple threading groove being convenient to threading, and threading number of recesses is consistent with wire casing body quantity.

As preferably, described threading groove radial direction is opened in the end of incoming cables oral area of skeleton.

As preferably, described wire casing body is in " work " type.

As preferably, all establish arc blend stop between described adjacent lines cell body, the gap between arc blend stop and skeleton dorsal edge forms trough.

Further improvement, described iron core four angles place is provided with the installing hole axially running through setting.

Compared with prior art, the invention has the beneficial effects as follows significant: the present invention is by the left half and the right half of skeleton and iron core integrated injection molding, so original the left half and the right half junction will be thinner before comparing, overall coiling amount can be increased, also improve installation effectiveness simultaneously, easy guarantee skeleton, at the accurate location of core interior, improves conforming product rate; Skeleton and iron core are injection-moulded in one, and connectivity is better, and simultaneously seamless connected between the left half and the right half, what the enamelled wire can stopping inside contacted with iron core may.It is simple that the present invention has structure, saves mounting process, have lifting motor performance, to reduce in operation the advantages such as enamelled wire damage.The motor stator of this structural design, simplifies production technology, adds motor performance, improves conforming product rate.

Accompanying drawing explanation

Fig. 1 is forward schematic perspective view of the present invention;

Fig. 2 is back of the present invention schematic diagram.

Fig. 3 is another embodiment of the present invention schematic diagram.

Fig. 4 is front plan view of the present invention.

Reference numeral: 1, iron core, 1.1, installing hole, 2, skeleton, 2.1, wire casing body, 2.1.1, outer body, 2.2, threading groove, 2.3, trough, 2.4, arc blend stop.

Embodiment

Fig. 1 is the schematic perspective view that skeleton face side of the present invention is seen, does not show coil in Fig. 1.In FIG, the connecting line between different parts represents the corresponding relation had between them between annexation or installing hole.

As shown in Figure 1, a kind of motor stator of the present invention, comprise iron core 1, coil, skeleton 2, iron core 1 center is provided with perforation, iron core 1 has multiple molding mode, and what the present embodiment adopted is at present the most general mode, namely iron core 1 by multi-disc silicon steel sheet continuously stacked pressing solidly form, described every sheet silicon steel sheet center is provided with through hole, the perforation of composition iron core 1 after the superposition of multi-disc silicon steel sheet.Said structure is the same with most stator structure of the prior art, and those skilled in the art can clearly understand.Skeleton 2 inwall is provided with multiplely is convenient to coil wire casing body 2.1 around the home.

In this preferred embodiment, described skeleton 2 integrated injection molding, and injection mo(u)lding is in the perforation of iron core 1, this mode is that the present invention creates, iron core 1 is placed on injection mold inside, to the feed liquid of the perforated inner injection moulding skeleton 2 of iron core 1, after cooling, die sinking obtains the combination of skeleton 2 and iron core 1, and skeleton 2 is connected with iron core 1 more closely with firm.Skeleton 2 adopts integrated injection molding, adopts the frame strength that obtains of mode of the left half and the right half splicing stronger than prior art, thus the integral thickness of the skeleton 2 of the present invention's design can do thinner, and then coiling amount increases.Skeleton 2 inwall is provided with multiplely is convenient to coil wire casing body 2.1 around the home, and coil is around on the wire casing body 2.1 of skeleton 2.

As the further optimization of the present embodiment, described skeleton 2 leading-out terminal is provided with the trough 2.3 for accommodating lead-out wires of coil.Leading-out terminal described in the present embodiment refers to this one end shown in Fig. 3, the lower end namely described in Fig. 1.Facilitate cabling after skeleton 2 coiling, enamelled wire is positioned at trough 2.3, and when installing stator, enamelled wire can not encounter foreign object, and it is damaged because of collision to prevent enamelled wire.

As the further optimization of this preferred embodiment, described skeleton 2 inlet wire port is provided with multiple threading groove 2.2 being convenient to threading, and threading groove 2.2 quantity is consistent with wire casing body 2.1 quantity.End of incoming cables described in the present embodiment refers to this one end can seen shown in Fig. 1.The enamelled wire of coil directly inserts around wire casing body 2.1 from threading groove 2.2, penetrates convenient what come around wire casing body 2.1 than prior art above skeleton 2 Single port edge.After the coiling of enamelled wire online cell body 2.1 completes, extend and be placed in the trough 2.3 at skeleton 2 back side.

As the further optimization of this preferred embodiment, shown in composition graphs 1 and Fig. 4, described threading groove 2.2 radial direction is opened in the oral area of skeleton 2.Facilitate threading.Described wire casing body 2.1 is in " work " type.

As the further optimization of this preferred embodiment, in order to the lead-out wire after coil-winding can be allowed outside not exposed, need design position for depositing lead-out wire.Shown in composition graphs 2, the present invention all establishes arc blend stop 2.4 between adjacent lines cell body 2.1, and the gap between arc blend stop 2.4 and skeleton 2 dorsal edge forms trough 2.3.Described iron core 1 four angles place is provided with the installing hole 1.1 axially running through setting, convenient installation.

In addition, the design of trough 2.3 can also have other mode in addition to that mentioned above.Such as, shown in composition graphs 3, spaced in the wire casing body 2.1 of " work " type shape, just form gap between the outer body 2.1.1 outside the wire casing body 2.1 of so " work " type shape and skeleton 2 back edge, be convenient to place lead-out wire.

Claims

1. a motor stator, comprise iron core (1), coil, skeleton (2), iron core (1) center is provided with perforation, skeleton (2) inwall is provided with multiplely is convenient to coil wire casing body (2.1) around the home, it is characterized in that: described skeleton (2) integrated injection molding, and injection mo(u)lding is in the perforation of iron core (1).

2. motor stator according to claim 1, is characterized in that: described skeleton (2) leading-out terminal is provided with the trough (2.3) for accommodating lead-out wires of coil.

3. motor stator according to claim 2, it is characterized in that: described skeleton (2) inlet wire port is provided with multiple threading groove (2.2) being convenient to threading, and threading groove (2.2) quantity is consistent with wire casing body (2.1) quantity.

4. motor stator according to claim 3, is characterized in that: described threading groove (2.2) radial direction is opened in the end of incoming cables oral area of skeleton (2).

5. the motor stator according to claim 1 or 3, is characterized in that: described wire casing body (2.1) is in " work " type.

6. motor stator according to claim 2, it is characterized in that: all establish arc blend stop (2.4) between described adjacent lines cell body (2.1), the gap between arc blend stop (2.4) and skeleton (2) dorsal edge forms trough (2.3).

7. motor stator according to claim 1, is characterized in that: described iron core (1) four angle place is provided with the installing hole (1.1) axially running through setting.