CN101552498A

CN101552498A - Generator stator structure

Info

Publication number: CN101552498A
Application number: CNA2008102469333A
Authority: CN
Inventors: 陈蕴超; 韩立臣; 牟晓松; 孙玲; 郝立国
Original assignee: Jinzhou Halla Electrical Equipment Co Ltd
Current assignee: Jinzhou Halla Electrical Equipment Co Ltd
Priority date: 2008-12-26
Filing date: 2008-12-26
Publication date: 2009-10-07

Abstract

The invention relates to a generator stator structure which can improve current output; stator line connecting ends are connected to form the stator coil with a tower-shaped symmetrical structure, the two ends of each stator coil winding are respectively connected with outgoing lines for leading out, a plurality of the stator core windings are installed inside an iron core slot and positioned by a positioning wedge. The structure has the advantages that: a plurality of air gaps are left at the two ends of the stator iron core and the end part of the stator winding, thus increasing the area of the wind path. Wind generated by the rotation of a fan can pass through the air gaps, and due to the existence of the air gaps, more wind can pass the surface of the end part of the stator winding and bring away more heat, thus reinforcing the heat dissipation property of the end part of the stator winding. The temperature of the stator winding can be reduced by about 10 DEG C under the condition of the same output power, and the output current can be improved by 5 amperes under the condition of the same stator winding temperature.

Description

Generator stator structure

Technical field

This patent relates to a kind of generator stator structure, is applicable to various alternating current generators.

Technical background

During generator work, axle rotates and drives fan and rotates.Fan rotates the wind path that produces and is entered by the generator front portion, blows to the end 5a of stator winding 5 via fan 3.

Shape such as Fig. 9, Figure 10, shown in Figure 11 of existing electricity generator stator coil, after embedding three coils on the iron core, arrange closelyr between the line of the end of stator winding, in disorder, when generator is worked, stator winding produces a large amount of electric currents, because the arrangement of stator winding end line is tight, can walk around stator winding end by the wind path that fan rotation on the rotor produces, cool off end to stator winding, can not well dispel the heat to the stator winding coil.

Summary of the invention

The objective of the invention is provides a kind of a kind of generator stator structure that improves electric current output for solving above-mentioned existing problem.

The present invention is achieved in that the stator coil that stator line link is connected and composed the turriform symmetrical structure, and each stator coil winding two ends connects lead-out wire respectively draws, and several stator coil windings are installed in the iron core slot, locate by locating wedge.

The invention has the advantages that at the stator core two ends, a lot of air gaps is left in the end of stator winding, has increased the area of wind path.The wind that fan rotation produces can pass through from air gap, because the existence of air gap, makes the surface of the inswept stator winding end of more wind energy, can take away more heat; Strengthen the thermal diffusivity of stator winding end.

Dispel the heat by this structure, about 10 degrees centigrade of the temperature that can reduce stator winding under the equal power output.Under equal stator winding temperature, can improve 5 amperes of output currents.

Description of drawings

Fig. 1 is generator assembling cutaway view;

Fig. 2, Fig. 3, Fig. 4, Fig. 5 are for being connected and composed the structure for amplifying schematic diagram of the stator coil winding of turriform symmetrical structure by single-piece stator line;

Fig. 6 installs one group of stator coil winding construction schematic diagram for stator core;

Fig. 7 is a structural representation of the present invention;

Fig. 8 is an expansion schematic diagram of the present invention;

Fig. 9 is existing stator coil winding construction schematic diagram;

The schematic diagram of the existing stator structure of Figure 10;

Figure 11 is the expansion schematic diagram of existing stator structure;

Embodiment

Describe in detail below in conjunction with accompanying drawing: as shown in the figure, generator comprises that main shaft 1, the pawl utmost point 2, fan 3, stator 4 connect and compose, and stator 4 comprises that iron core 5, stator coil winding 6, lead-out wire 7, locating wedge 8 connect and compose; Stator line link is connected and composed the stator coil winding 6 of turriform symmetrical structure, and each stator coil winding 6 two ends connects lead-out wire 7 respectively draws, and several stator coil windings 6 are installed among the location notch 5a of iron core 5, by locating wedge 8 location.

With the threephase stator winding is example

Mode one:

Stator line 6 is made into shape shown in Figure 2, one side end 6a of stator line 6, end side 6b is installed in each root stator line 6 in the stator core 4, and the end 6a of a stator line 6 and the end 6a of second stator line weld, the 6b of the end 6b of second stator line 6 and the 3rd stator line welds together, be welded into one group of winding according to the method, connect with lead-out wire 7 respectively at one group of winding two ends, the structure of lead-out wire 7 as shown in Figure 3, lead-out wire one end 7a, the other end 7b.The coiling of a winding is finished in the end 7b of lead-out wire 7 and the welding of the end of stator line 6; Leave a lot of air gap 9 between the end 6a of stator winding.

Accordingly other two groups of winding assemblings being finished,, leave a lot of air gap 9 between the end 6a of stator winding and between the 6b, thereby increased the area of wind path at stator core 5 two ends.The wind that fan 2 rotations produce can pass through from air gap 9, increases the thermal diffusivity of stator winding end 6a, 6b.

Mode two,

Stator line 6 is made into shape shown in Figure 2, one side end 6a of stator line 6, end side 6b, the end 6a of a stator line 6 and the end 6a of second stator line are assembled together, the 6b of the end 6b of second stator line 6 and the 3rd stator line is assembled together, according to the method stator line 6 that whole three phase windings are required and go between and 7 all be assemblied in the stator core, lead-in wire 7 will be arranged needed position again, the unified welding, finishing the assembling of three windings finishes, at stator core 5 two ends, leave a lot of air gap 9 between the end 6a of stator winding and between the 6b, increased the area of wind path.The wind that fan 2 rotations produce can pass through from air gap 9, increases the thermal diffusivity of stator winding end 6a, 6b.

Claims

1, a kind of generator stator structure, it is characterized in that stator line link is connected and composed the stator coil winding of turriform symmetrical structure, and each stator coil winding two ends connects lead-out wire respectively and draws, several stator coil windings are installed in the location notch of iron core, locate by locating wedge.

2, according to the said a kind of generator stator structure of claim 1, it is characterized in that, one side end (6a) of stator line (6), end side (6b), each root stator line (6) is installed in the stator core (4), ((6a) welds in the end of 6a0 and second stator line in the end of a stator line 6, the end (6b) of second stator line (6) welds together with (6b) of the 3rd stator line, be welded into one group of winding according to this mode, use lead-out wire (7) to connect respectively at one group of winding two ends, the coiling of one group of winding is finished in the end (7b) of lead-out wire (7) and the welding of the end of stator line (6); Between the end of stator winding and leave a lot of air gap (9).

3, according to the said a kind of generator stator structure of claim 1, it is characterized in that, the end (6a) of a stator line (6) is assembled together with the end (6a) of second stator line, the end (6b) of second stator line (6) is assembled together with (6b) of the 3rd stator line, stator line (6) and lead-in wire (7) whole three phase windings are required according to this mode all are assemblied in the stator core, lead-in wire (7) will be arranged needed position again, the unified welding, finishing the assembling of three windings finishes, at stator core (5) two ends, leave a lot of air gap (9) between the end of stator winding.