CN2098079U

CN2098079U - No-unwelded joint transformer

Info

Publication number: CN2098079U
Application number: CN 91219996
Authority: CN
Inventors: 巨力
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-08-07
Filing date: 1991-08-07
Publication date: 1992-03-04

Abstract

The utility model relates to a jointless transformer which can be a single-phase or three-phase large, medium or small-scale transformer. The structure of the utility model is that the wire bag of the transformer is directly wounded on the core column of a jointless iron core in the shape like the Chinese character 'ri' or 'kou' or is wounded on the core column of a combined iron core spliced by two or more than two jointless iron cores in the shape like the Chinese character 'kou' in a same plane, and the iron core can be a punching type as well as a winding type. After the iron core is made, the frames of two half wire bags are gathered on the core column and are spliced into the frame of the wire bag with a circular cross section, and then the frame is rotated to be wound into a coil. The utility model has small magnetic resistance loss, small size, light weight, row material saving and low cost.

Description

No-unwelded joint transformer

The utility model belongs to design, the manufacturing technology field of transformer, is specifically related to not have the seam transformer, can be large, medium and small various transformer single-phase, three-phase.

Notification number is that the Chinese patent literature of CN2053370U proposes a kind of jointless three-phase transformer iron core, its structure is the rectangle frame that is regular hexagon or garden shape by three stem stem cross sections, joins in twos and pieces together a three-phase transformer iron core that is shaped as tri-prismoid three-dimensionally.Though it is little that this iron core has a magnetic resistance, there is following shortcoming in the advantage that loss is low:

1, needs " first coiled cross section is half garden shape or half hexagonal square frame ", so just can not adopt wide silicon steel sheet coiling, and the continuous silicone steel disc and the comparatively complicated particular manufacturing craft that must adopt width not wait could be shaped.Therefore stock utilization is low, and need set up special use and cut out equipment cutting silicon steel sheet, thus performance difficulty.Expense is very high.

2, use the three-phase transformer of this kind iron core, heat radiation is concentrated, is difficult to the position that three line inclusions are leaned on heat when work, must increase the gap between the line bag, also just has to strengthen the volume and weight of transformer.

3, the document is said: " easy to process for making, above-mentioned rectangle frame partly can be disconnected at stem stem, be inserted in former state assembly unit behind the coil ", in fact not " seamless iron core " so.

The purpose of this utility model is to provide a kind of new no seam transformer, and not only its iron core does not have seam, and the little loss of magnetic resistance is low, the transformer efficiency height, and implement easily, volume is little in light weight.

Structure of the present utility model is as follows: the line bag of transformer directly around a day font or the stem stem of the seamless iron core of square shape on, perhaps on the stem stem of the assembling iron core that in same plane, is put together around seamless iron core by two or more square shapes.

Above-mentioned seamless iron core both can be a punching formula (being formed by stacking through stamping-out by silicon steel sheet), also can be takeup type (being formed by direct coiling of silicon steel sheet).The punching formula is mainly used in the following single-phase transformer of 1KW.Takeup type can be used for single-phase or three-phase transformer.

The line bag of the utility model transformer can be by following method coiling: after iron core is made, the two halves coil frame is closed up on iron core stem stem 1, the coil frame 2(that pieces together a garden tee section sees Fig. 1), rotate this coil frame coiled coil then.Goodbye Fig. 2 drives coil frame sprocket wheel 5 by drive sprocket 3 by chain 4, thereby makes coil frame 2 around stem stem 1 rotation.6 are the mobile support wheel.

Advantage of the present utility model is:

1, saves silicon steel sheet.The takeup type cores without wastes, the stock utilization of punching formula seamless iron core is higher than traditional transformer.The above three-phase transformer of 10KW for example, existing in the punching formula has the seam iron core, stock utilization is 70-80%.And three-phase transformer of the present utility model all adopts the takeup type seamless iron core, and stock utilization can reach 100%(in theory because of adopting wide silicon steel sheet coiling);

2 because magnetic circuit does not have seam, so the iron loss reduction, can alleviate core volume and weight, improves iron core and can use magnetic flux density;

3, because core dimensions reduces, and available magnetic flux density increases, and magnetic leakage reduces, all reduce so coil total number of turns and average turn are long, copper loss reduces, and the copper consumption reduces;

When 4, the utility model made punching formula transformer reduce the allotment of labor, takeup type transformer cost reduced;

5, the utility model and existing transformer technology difference are little, and the existing equipment of transformer factory and technology all can be prolonged usefulness; And the utility model is applicable to the transformer of large, medium and small various batch process, therefore is convenient to promote, promote the transformer industry technological progress.

The utility model is energy-conservation, save copper material and silicon steel, and production cost is low.Because the total output of transformer (various) is very big, thereby has bigger economic results in society.

Fig. 1 is the coil frame sketch.Fig. 2 is the coil winding method schematic diagram.Fig. 3 is the single-phase no seam highly effective transformer of punching formula.Fig. 4 also is the single-phase no seam highly effective transformer of punching formula.Fig. 5 is the single-phase no seam highly effective transformer of takeup type.Fig. 6 also is the single-phase no seam highly effective transformer of takeup type.Fig. 7 does not have the seam highly effective transformer for the takeup type three-phase.Fig. 8 is for improving the core structure schematic diagram of activity coefficient.

Embodiment 1: see Fig. 3, be the single-phase no seam highly effective transformer of punching formula.Fig. 3 (a) is a day font seamless iron core schematic diagram, and Fig. 3 (b) is the transformer device structure schematic diagram.Primary and secondary wire bag 8 all are located on the stem stem 7.

Present embodiment is a design object with light weight, and its every technical-economic index and font appendiron core transformer contrast in common day are as follows:

Embodiment 1 core section iron core weight line bag weight total weight material cost

26.35 yuan of 30mm * 30mm 1.35kg 0.65kg 2kg

45.1 yuan of common transformer 30mm * 65mm 3.1kg 0.9kg 4kg

Embodiment 1 power output input voltage output voltage and electric current no-load current

200W 220V 20V、10A 0.07A

Common transformer 200W 220V 20V, 10A 0.12A

Hence one can see that, and the no seam transformer of this example weight reduces by half, and no-load current reduces, and copper, iron material cost reduce by 42%.Reduce 80% during the silicon steel sheet assembler in addition.

If adopt no seam Wound core, transformer weight also can alleviate.

Example example 2: see Fig. 4, be the single-phase no seam highly effective transformer of punching formula, Fig. 4 (a) is a square shape seamless iron core schematic diagram; Fig. 4 (b) is the transformer device structure schematic diagram.Primary line bag 11 and time line bag 12 are located at respectively on the

stem stem

9 and 10 of iron core.

Embodiment 3: see Fig. 5, be the single-phase no seam highly effective transformer of takeup type.Fig. 5 (a) is the seamless iron core schematic diagram.This iron core does not have seam takeup type iron core 13 and 14 by two square shapes and piece together font iron core on the one in same plane.Fig. 5 (b) is the transformer device structure schematic diagram.First, the inferior line bag 16 of transformer all is located on the stem stem 15 of day font iron core that pieces together.

Embodiment 4: see Fig. 6, be the single-phase no seam transformer of takeup type.Fig. 6 (a) is a square shape takeup type seamless iron core schematic diagram, and Fig. 6 (b) is the transformer device structure schematic diagram.Primary line bag 19 and secondary wire bag 20 are located at respectively on the

stem stem

17 and 18 of iron core.

Embodiment 5: see Fig. 7, for the takeup type three-phase does not have the seam highly effective transformer.Fig. 7 (a) is the seamless iron core schematic diagram.This iron core does not have seam takeup type iron core by three square shapes and is put together; After two square shapes do not have seam takeup

type iron core

22 and 23 piece together font iron core on the one in same planes, again this day the font iron core periphery put a square shape takeup type seamless iron core 21, thereby finally be combined into day font iron core, identical with the cross section that guarantees its three stem stems.Fig. 7 (b) is the transformer device structure schematic diagram.Three

line bags

24,25 and 26 of three-phase transformer are located at respectively on three stem stems of the above-mentioned day font iron core that finally is combined into.

Embodiment 6: see Fig. 8, for improving the core structure schematic diagram of fill system.Fig. 8 (a) is by three iron core amalgamations; Fig. 8 (b) is by five iron core amalgamations.

Claims

1, a kind of no seam highly effective transformer, it is characterized in that: the direct line of its line bag a day font or the stem stem of the seamless iron core of square shape on, perhaps on the stem stem of the assembling iron core that in same plane, is put together by two or more square shape seamless iron cores.

2, transformer as claimed in claim 1 is characterized in that said seamless iron core both can be the punching formula, also can be takeup type.

3, transformer as claimed in claim 2 is characterized in that coil frame is put together by two halves.

4, transformer as claimed in claim 3 is characterized in that for the punching formula single-phasely, and primary and secondary line Bao Jun is on the stem stem of font punching formula iron core on the one.

5, transformer as claimed in claim 3 is characterized in that for the punching formula single-phasely, and primary and secondary line bag is respectively on two stem stems of a square shape punching formula iron core.

6, transformer as claimed in claim 3 is characterized in that for takeup type single-phasely, and primary and secondary line Bao Jun is on the stem stem of the font iron core on the one that is pieced together in same plane by two square shape takeup type iron cores.

7, transformer as claimed in claim 3 is characterized in that for takeup type single-phasely, and primary and secondary line bag is respectively on two stem stems of a square shape takeup type iron core.

8, transformer as claimed in claim 3, it is characterized in that being the takeup type three-phase, two square shape takeup type iron cores piece together font iron core on the one in same plane after, again this day the font iron core periphery put a square shape takeup type iron core, being combined into the identical day font iron core in three stem stem cross section, and three line bags respectively around above-mentioned finally be combined into day the font iron core three stem stems on.