CN201247976Y

CN201247976Y - Allotype tank type single-phase generator stator punching slice

Info

Publication number: CN201247976Y
Application number: CNU2008200997710U
Authority: CN
Inventors: 李心尧; 陈凤勤
Original assignee: CHONGQING JILI YUNFENG INDUSTRY (GROUP) Co Ltd
Current assignee: CHONGQING JILI YUNFENG INDUSTRY (GROUP) Co Ltd
Priority date: 2008-08-25
Filing date: 2008-08-25
Publication date: 2009-05-27
Anticipated expiration: 2018-08-25

Abstract

The utility model relates to a deformed groove single-phase generator stator sheet which comprises a sheet body, wherein the outline of the sheet body is composed of four straight sections and four arc sections, and every two straight sections are opposite mutually and parallel to each other and every two arc sections are opposite mutually; and the inner outline of the sheet body is provided with a plurality of wire grooves which comprise a main winding wire groove and rest winding wire grooves. The deformed groove single-phase generator stator sheet is characterized in that four winding wire grooves in the rest winding wire grooves are kept unchangeable or the areas of the four winding wire grooves are increased to be deformed groove enough placing all rest windings, and the areas of the rest windings in the rest winding wire grooves are increased as much as possible to form a deformed dead slot. The utility model has the advantages of simple structure and lost conservation, can cause the corresponding yoke width of the outline of the sheet body to keep consistent, ensures even magnetic flux density of the yoke of the stator, and improves the output power of a generator.

Description

Abnormity slot type single-phase generator stator punching

(1), technical field

The utility model relates to a kind of generator, the stator punching on particularly a kind of single-phase generator.

(2), background technology

The stator punching of existing single-phase generator includes lamellar body, the outline of lamellar body be by four in twos toward each other and parallel straightway and four circular arcs respect to one another in twos constitute, be distributed with a plurality of wire casings on the interior circle contour of lamellar body, in these wire casings, include main winding wire casing and residue winding wire slot, described residue winding wire slot is meant the wire casing of other winding of arrangement except that main winding, this wire casing can be settled auxiliary winding, also the direct current winding can be settled, oil control winding can also be settled.As shown in Figure 4, it is a kind of existing stator punching, be applicable to 2 kilowatts of serial motors, the length of straigh line that one group of relative length of straigh line on its outline is relative with another group is different, be distributed with 30 identical wire casings of shape on the interior circle contour, wherein, pairing five wire casings of every straightway of long straightway are the residue winding wire slots, and remaining all is main winding wire casings.As shown in Figure 5, it is another kind of existing stator punching, be applicable to 5 kilowatts of serial motors, every length of straigh line of its outline is identical, be distributed with the identical wire casing of 36 shapes on the interior circle contour, wherein, every pairing six wire casings of one group of straightway are the residue winding wire slots, and remaining all is main winding wire casings.Above-mentioned stator punching all exists following deficiency:

1, outline be the straightway width K1 of yoke portion partly than outline is that the width K2 of yoke portion of circular arc portion is little a lot, and the magnetic flux density that causes the former is greater than the latter, and the magnetic flux distribution of whole stator is extremely inhomogeneous, is having a strong impact on the power output of generator.

2, the size of all wire casings, shape is all identical, though main winding needs the wire casing of such size, but, settling the residue winding with the wire casing of such size but is very big waste, its reason is to remain each winding in the winding, as auxiliary winding, direct current winding and oil control winding, their number of turn is few, and the line footpath is little, do not need so big area, thereby cause having approximately four wire casings to become dead slot, the existence of dead slot wants to guarantee that the power output of generator meets the requirements, just must increase the pairing yoke of the straightway width K1 of portion, increase the overall dimension of stator punching, certainly will increase the use amount of silicon steel sheet, cause unnecessary waste.

(3), summary of the invention

The purpose of this utility model just provides a kind of special-shaped slot type single-phase generator stator punching simple in structure, cost-effective, it can make the pairing yoke degree of lamellar body outline width keep basically identical, the magnetic flux density that guarantees stator yoke portion is even, improves the power output of generator.

The purpose of this utility model is to realize by such technical scheme, it includes lamellar body, the outline of lamellar body be by four in twos toward each other and parallel straightway and four circular arcs respect to one another in twos constitute, be distributed with a plurality of wire casings on the interior circle contour of lamellar body, in these wire casings, include main winding wire casing and residue winding wire slot, under the prerequisite that keeps the slot pitch and the facewidth not to become, four groove shape of residue in the winding wire slot are remained unchanged or their area is increased to the special-shaped groove that is enough to place all residue windings, and the area of all the other wire casings in the residue winding wire slot dwindles to constitute special-shaped dead slot as far as possible.

In the utility model, keep existing stator punching outer contour shape constant, it is constant to keep having now the interior circle of stator punching size, the facewidth, wire casing number and corresponding distribution, and the shape and the area of the main winding wire casing of the existing stator punching of maintenance are constant.The alleged residue winding wire slot of the utility model is meant the wire casing of other winding of arrangement except that main winding, and it can settle auxiliary winding, also can settle the direct current winding, can also settle oil control winding.The utility model has been made above-mentioned improvement to the residue winding wire slot exactly, all auxiliary winding, direct current winding, oil control winding are made concentrated winding, all be placed in four special-shaped grooves, if the original shape of special-shaped groove is enough to settle concentrated winding, the shape of special-shaped groove can be the same with main winding wire casing shape; Special-shaped dead slot described in the utility model is a dead slot, does not settle any winding.Area is little and the design of the special-shaped dead slot that radial depth is shallow can increase the pairing yoke of straightway portion width, make the yoke portion width basically identical on the whole stator punching, thereby guaranteed that the magnetic flux distribution on the whole stator punching is even, to improve the power output of generator.Utilize special-shaped groove, can remain winding to all and carry out appropriate design, make arrangement and concentrate winding easily, can accomplish to keep motor, obviously reduce the consumption of silicon steel sheet or copper cash, save production cost so have under the constant prerequisite of performance.

Owing to adopted technique scheme, the utlity model has simple in structure and cost-effective advantage, it can keep basically identical by the pairing yoke degree of lamellar body outline width, guarantees that the magnetic flux density of stator is even, improves the power output of generator.

(4), description of drawings

Description of drawings of the present utility model is as follows:

Fig. 1 is the structural representation of first kind of embodiment of the utility model;

Fig. 2 is the structural representation of second kind of embodiment of the utility model;

Fig. 3 is the structural representation of the third embodiment of the utility model;

Fig. 4 is the stator punching of first kind of existing single-phase generator;

Fig. 5 is the stator punching of second kind of existing single-phase generator.

Among the figure: 1. lamellar body; 2. straightway; 3. circular arc; 4. main winding wire casing; 5. residue winding wire slot; 6. tooth; 7. special-shaped groove; 8. special-shaped dead slot; 9. corresponding section; 10. corresponding section.

(5), embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

As Fig. 1, shown in 2 or 3, the utility model includes lamellar body 1, the outline of lamellar body 1 be by four in twos toward each other and parallel straightway 2 and four circular arcs 3 respect to one another in twos constitute, be distributed with a plurality of wire casings on the interior circle contour of lamellar body 1, in these wire casings, include main winding wire casing 4 and residue winding wire slot 5, under the prerequisite that keeps the slot pitch and the facewidth 6 not to become, four groove shape of residue in the winding wire slot 5 are remained unchanged or their area is increased to the special-shaped groove 7 that is enough to place all residue windings, and the area of all the other wire casings in the residue winding wire slot 5 dwindles to constitute special-shaped dead slot 8 as far as possible.

In the utility model, keep existing stator punching outer contour shape constant, it is constant to keep having now the interior circle of stator punching size, the facewidth, wire casing number and corresponding distribution, and the shape and the area of the main winding wire casing 4 of the existing stator punching of maintenance are constant.The alleged residue winding wire slot 5 of the utility model is meant the wire casing of other winding of arrangement except that main winding, and it can settle auxiliary winding, also can settle the direct current winding, can also settle oil control winding.The utility model has been made above-mentioned improvement to residue winding wire slot 5 exactly, all auxiliary winding, direct current winding, oil control winding are made concentrated winding, all be placed in four special-shaped grooves 7, if special-shaped groove 7 original shapes are enough to settle concentrated winding, the shape of special-shaped groove 7 can be the same with main winding wire casing 4 shapes; Special-shaped dead slot 8 described in the utility model is dead slots, does not settle any winding.Area is little and the design of the special-shaped dead slot 8 that radial depth is shallow can increase the pairing yoke of straightway portion width, make the yoke portion width basically identical on the whole stator punching, thereby guaranteed that the magnetic flux distribution on the whole stator punching is even, to improve the power output of generator.Utilize special-shaped groove 7, can remain winding to all and carry out appropriate design, make arrangement and concentrate winding easily, can accomplish to keep motor, obviously reduce the consumption of silicon steel sheet or copper cash, save production cost so have under the constant prerequisite of performance.

Embodiment 1: the utility model can be made as shown in Figure 1, one group of relative straightway 2 length straightway 2 length relative with another group are different, in each straightway 2 pairing five wire casing of one group of long straightway, with corresponding two wire casings in straightway 2 ends are special-shaped grooves 7, its excess-three wire casing is special-shaped dead slot 8, and the base of five wire casings all one with straight line that pairing straightway 2 parallels on.

Embodiment 2: the utility model also can be made as shown in Figure 2, the length of every straightway 2 is identical, wherein in every straightway 2 pairing six wire casings of one group of two relative straightway 2, with corresponding two wire casings in straightway 2 ends are special-shaped grooves 7, all the other four wire casings are special-shaped dead slots 8, and the base of six wire casings all one with straight line that pairing straightway parallels on.

Embodiment 3: according to user's needs, the utility model can also be made as shown in Figure 3, the length of every straightway 2 is identical, wherein half of straight line section 2 combined as corresponding section 9 with half of adjacent circular arc 3, these correspondence section 9 relative outlines also are another corresponding sections 10, in corresponding section 9 and corresponding section 10 pairing six wire casings, with corresponding two wire casings in corresponding section end are special-shaped grooves 7, all the other four wire casings are special-shaped dead slots 8, and the base of six wire casings all point-blank.

Claims

1. special-shaped slot type single-phase generator stator punching, include lamellar body (1), the outline of lamellar body (1) be by four in twos toward each other and parallel straightway (2) and four circular arcs respect to one another in twos (3) constitute, be distributed with a plurality of wire casings on the interior circle contour of lamellar body (1), in these wire casings, include main winding wire casing (4) and residue winding wire slot (5), it is characterized in that: under the prerequisite that keeps the slot pitch and the facewidth (6) not to become, four groove shape in residue winding wire slot (5) are remained unchanged or their area is increased to the special-shaped groove (7) that is enough to place all residue windings, and the area of all the other wire casings in the residue winding wire slot (5) dwindles to constitute special-shaped dead slot (8) as far as possible.

2. special-shaped slot type single-phase generator stator punching as claimed in claim 1, it is characterized in that: one group of relative straightway (2) length is different with relative straightway (2) length of another group, in pairing five wire casings of each straightway (2) of one group of long straightway, with corresponding two wire casings in straightway (2) end are special-shaped groove (7), its excess-three wire casing is special-shaped dead slot (8), and the base of five wire casings all one with straight line that pairing straightway (2) parallels on.

3. special-shaped slot type single-phase generator stator punching as claimed in claim 1, it is characterized in that: the length of every straightway (2) is identical, wherein in pairing six wire casings of every straightway (2) of one group of relative two straightway (2), with corresponding two wire casings in straightway (2) end are special-shaped groove (7), all the other four wire casings are special-shaped dead slot (8), and the base of six wire casings all one with straight line that pairing straightway parallels on.

4. special-shaped slot type single-phase generator stator punching as claimed in claim 1, it is characterized in that: the length of every straightway (2) is identical, wherein half of straight line section (2) combined as corresponding section (9) with half of adjacent circular arc (3), the relative outline of this correspondence section (9) also is another corresponding section (10), in corresponding section (9) and corresponding section (10) pairing six wire casings, with corresponding two wire casings in corresponding section end are special-shaped groove (7), all the other four wire casings are special-shaped dead slot (8), and the base of six wire casings all point-blank.