CN201365145Y

CN201365145Y - Structure of motor stator

Info

Publication number: CN201365145Y
Application number: CNU2008202132147U
Authority: CN
Inventors: 赵彦宏; 谭国栋
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2008-10-31
Filing date: 2008-10-31
Publication date: 2009-12-16
Anticipated expiration: 2018-10-31

Abstract

The utility model discloses a structure of a motor stator, comprising a stator end cover, a stator iron core, a stator framework and a stator coil. The stator framework is connected with the stator iron core; the stator coil is wound round the stator framework; and the stator framework is provided with a pair of coil connecting terminals. Due to the adoption of the technical scheme, when a wire is wound round the motor stator, windings can be connected by the wire connecting terminals, and the head end and the tail end of each way of winding can be welded with the coil connecting terminals, thereby the problems of overlarge wire welding endpoint and difficult wire binding in the manufacturing process, which are caused by the traditional wire winding way, are solved, the mechanical automation is realized, the production efficiency is improved and the cost is greatly reduced.

Description

A kind of motor stator structure

Technical field

The utility model relates to a kind of motor, relates in particular to a kind of motor stator structure.

Background technology

Conventional motors mainly is made up of motor stator, rotor, winding coil, casing and front and rear cover, motor stator has very big influence as the chief component of motor to motor properties, and motor stator mechanism has determined the winding mode and the connected mode of stator coil.For micromachine, according to the different applied field of the motor kind of motor in one's power, production technology, the structure of motor is diversified.When multinomial series connection is adopted in the stator winding design of motor, and the enamelled wire that requires stator coil to use is when meticulous, press traditional approach, promptly the head end of every road winding be connected in parallel, the tail end of every road winding is connected in parallel, but as easy as rolling off a log makeing mistakes when parallel connection can cause productivity ratio low, and qualification rate is low, can not realize automated production, and the reliability of motor is low.For example: the three phase electric machine that 12 pairs of utmost points are arranged, winding are 4 tunnel parallel connections, and motor stator is by skeleton 1, stator core 2, and coil 3 is formed, as shown in Figure 1.Will there be the another one problem like this, if way in parallel is too much, end points in parallel is all wanted Tang's tin, can cause the end points at place in parallel excessive, difficulty is bigger in the production process of binding, and the line bag is too high, thereby motor volume is increased, cost increases, and is difficult in the coil manufacturing process realize mechanization, influences production efficiency; If the coil varnish envelope curve diameter of selecting for use during design of electrical motor is meticulous, in the multi-channel parallel welding, break enamelled wire easily, thereby the productivity ratio of making and cost of manufacture increase greatly.

Summary of the invention

The purpose of this utility model is to solve the above-mentioned problems in the prior art, provides a kind of simple in structure, and coiling is convenient, can realize the motor stator structure of automation assembling,

The utility model is achieved in that a kind of motor stator structure, comprising: stator end cap, stator core, and the stator skeleton that is connected with stator core, the stator coil on the stator skeleton, described stator skeleton is provided with pair of terminals.

The utility model adopts the above technical scheme, when motor stator winding, can connect winding by binding post, again the head end of the winding on each road and tail end and terminal welding, so both avoided traditional winding mode to cause the bigger problem of colligation difficulty in excessive, the manufacturing process of welding end points, and realized mechanical automation having improved production efficiency, greatly reduce cost.

Below in conjunction with drawings and Examples the utility model is further described.

Description of drawings

Fig. 1 is a conventional motors stator coil coiling schematic diagram;

Fig. 2 is the coiling schematic diagram of a kind of embodiment of the utility model;

Fig. 3 is the stator skeleton structure chart of a kind of embodiment of the utility model;

Fig. 4 is the structural representation of the terminal 2 of a kind of embodiment of the utility model;

Fig. 5 is the terminal 2 of a kind of embodiment of the utility model and the schematic diagram that cooperates of electric motor end cap;

Fig. 6 is the assembling relationship figure of a kind of embodiment of the utility model.

Embodiment

As shown in Figure 6, the utility model comprises: stator core 2, and the stator skeleton 1 that is connected with stator core 2, the stator coil 3 on the stator skeleton 1, stator end cap 6 and have the stator support 5 of claw 51, described stator skeleton 1 is provided with pair of terminals 4.

Described stator skeleton 1 has two ends, leading section 111 and rearward end 112, as shown in Figure 3, form groove between described two ends so that carry out the coiling of stator coil 3, the top of described rearward end 112 is provided with pair of terminals 4, preferably, described binding post 4 is injection molded into one with described stator skeleton 1.At least be provided with a projection 41 on described each binding post 4.

When stator coil is wound the line, each coil made an independent winding and on a stator skeleton 1, then two the end of a thread of coil are connected on projection 41 parts of described binding post 4 respectively, again the stator skeleton 1 that winds line is fixed on the described stator core 2, concrete grammar is: the face that the rearward end 112 of described stator skeleton 1 matches with stator core 2 is provided with draw-in groove 114, the width of described draw-in groove 114 is slightly less than the thickness of stator core 2, stator skeleton 1 can be fixed on the described stator core 2, as shown in Figure 6 by draw-in groove like this.Certainly stator skeleton 1 also can be fixedly connected on the described stator core 2 by other connected modes, such as by mode bonding or that weld.

In conjunction with Fig. 3 and shown in Figure 4, the two sides of the rearward end 112 of described stator skeleton 1 are respectively equipped with guide groove 113, the shape of described guide groove 113 is identical with the shape of described stator support 5 upper clipping claws 51, described claw 51 can stretch in the described guide groove 113 and form interference fit with it, when stator core 2 after intact coil 3, described stator core 2 is snapped on the stator support 5 by the guide groove on the stator skeleton 1 113, have all cards the corresponding with it claw 51 of binding post 4 of the stator skeleton 1 of claw 51 to weld together at last.

Described stator support 5 preferably is injection molded into one with described stator end cap 6, and as shown in Figure 5, described stator support 5 finally forms a connection plug 611 in a side of described stator end cap.

For dissimilar motors, can design the stator support 5 of different structure, come to cooperate group right according to motor item number and coil-winding mode to stator skeleton 1 and claw 51.When motor is switched on by plug 611, electric current can by stator support and with claw 51 be transferred to corresponding binding post 4, and then be each coil electricity of motor, realize the operate as normal of motor.Three phase electric machine with 6 pairs of utmost points, winding are four tunnel parallel connections, and its coiling relation as shown in Figure 2.The above stator support and described stator skeleton 1 cooperate and the coiling principle of described stator coil is not the emphasis that the application narrates, but those skilled in the art's common practise does not repeat them here.

Adopt above technical scheme, not only avoided the contact of the multinomial parallel connection that occurs in traditional winding mode excessive, be difficult for the problem of colligation, and can select the enamelled wire in free-throw line footpath during design of electrical motor for use, meet design requirement, reduced motor volume, saved cost.Realize the production automation simultaneously, improved production efficiency.

Claims

1, a kind of motor stator structure, comprise: stator end cap (6), stator core (2), the stator skeleton (1) that is connected with stator core (2), stator coil (3) on the stator skeleton (1), it is characterized in that: described stator skeleton (1) is provided with pair of terminals (4).

2, motor stator structure according to claim 1 is characterized in that: be provided with a projection (41) on described each binding post (4) at least.

3, motor stator structure according to claim 1 is characterized in that: described stator skeleton (1) has leading section (111) and rearward end (112).

4, motor stator structure according to claim 3 is characterized in that: described binding post (4) is arranged on the top of described stator skeleton rearward end (112).

5, motor stator structure according to claim 4 is characterized in that; Also be provided with the draw-in groove (114) that matches with stator core on the described rearward end (112).

6, motor stator structure according to claim 5 is characterized in that: described motor stator structure also comprises a stator support (5) that matches with described stator skeleton (1).

7, motor stator structure according to claim 6 is characterized in that: the two sides of described rearward end (112) are respectively equipped with guide groove (113), and described stator support (5) is provided with the claw (51) that matches with described guide groove (113).

8, motor stator structure according to claim 6 is characterized in that: binding post (4) claw corresponding with it (51) of described stator skeleton (1) welds together.

9, motor stator structure according to claim 6 is characterized in that: described stator support (5) is injection molded into one with described stator end cap (6).

10, motor stator structure according to claim 9 is characterized in that: described stator support (5) forms a connection plug (611) in a side of described stator end cap (6).