CN2465294Y - Winding reel for transformer - Google Patents

Abstract

The utility model relates to a winding reel for a transformer. The utility model comprises a columnar hollow body, a first blade, second blades, a third blade, and a connecting foot, wherein, the first blade forms on the surface of the secondary stage of the columnar hollow body. One end of the first blade is provided with a first flange which is provided with a thin section for the winding of a conducting wire. The first blade separates out a primary stage and a secondary stage. The second blades form on the surface of the columnar hollow body in parallel. The second blade is provided with a second notch and a second unfilled corner. The third blade is positioned between the adjacent second blades. The third blade is provided with a third notch and a third unfilled corner. The third unfilled corner and the second unfilled corner form a level height difference.

Description

The bobbin of transformer

The utility model relates to a kind of bobbin, particularly relates to a kind of bobbin of transformer.

A kind of bobbin of known transformer (bobbin) 10 comprises column hollow body 20 and plurality of vanes 30 shown in Fig. 1 (a) and Fig. 1 (b).Wherein column hollow body 20 is in order to the iron core (not shown) of holding a strip and twines lead thereon to form a transformer.Wherein this lead also comprises primary wires (not shown) and secondary wire 60 (being designated hereinafter simply as lead 60).

As can be seen, this blade (partition wall) 30 is formed on the surface of this column hollow body 20 from Fig. 1 (a) or Fig. 1 (b), and is elementary in order to be separated out, secondary and form a plurality of minutes grooves (winding groove) in secondary.One section of this blade 30 has a breach (wireguiding notch) 31, and an end of this blade 30 has a flange (flange) 33 (shown in Fig. 1 (a)) or a unfilled corner 35 (shown in Fig. 1 (b)), and it should be noted that these flanges 33 and unfilled corner 35 are to be positioned at homonymy, being arranged in a straight line and being positioned on the same level height, also is that these flanges 33 and unfilled corner 35 there is no difference in height.

It can also be seen that from Fig. 1 (a) or Fig. 1 (b) this bobbin 10 secondary has two pins simultaneously, is respectively initial line pin (end) 50a and tie lines pin (end) 50b.Wherein be wound in secondary lead 60 and be and originate in this initial line pin 50a and end in this tie lines pin 50b.When this lead is extended in the way of this tie lines pin 50b by this initial line pin 50b, can through and be wound in above-mentioned minute groove and form coil (winding).After the wire circle (winding number) of a certain minute groove satisfied, this lead 60 continued to form coil after can extending to next minute groove of adjacency via breach 31, so can form a plurality of selectable magnitudes of voltage.Yet for the purpose of simplifying accompanying drawing, the utility model is not drawn the lead that is wound on the branch groove, only draws the part lead 60 of contiguous initial line pin 50a and tie lines pin 50b.

Please consult Fig. 1 (a) or Fig. 1 (b) again, when twining on minute groove, lead finishes and when desiring take-up, because the end of lead 60 is to be positioned at secondary distal-most end, so this lead 60 is quite remote apart from tie lines pin 50b, if directly the unsettled tie lines pin 50b that is not connected to will be breakneck thing (having any support), because this secondary lead 60 is easy to fracture, and this lead 60 is the outer rim of close secondary coil, this outer rim is the voltage highest point, even therefore these lead 60 non-crackings still might be short-circuited because of displacement touches the voltage highest point.

Known technology comprises for the settling mode of the problems referred to above: twine the step that finishes the back and increase a twisted wire (twist line) before desiring to be connected to tie lines pin 50b at lead 60 on minute groove, avoid fracture with the intensity that increases this lead 60.This kind mode perhaps can solve the problem of broken string reluctantly, but need increase extra making step, and still can't fix this lead, also is that known technology still has its insurmountable problem to exist.

In addition or, provide the support of lead and fixing with an above-mentioned flange 33 or a unfilled corner 35.Significantly, the bobbin of these unfilled corner 35 forms only can provide to a certain degree the fixing of (not being comprehensive) and can't provide support fully, and for example it only can prevent because of the displacement that external force caused from right side among the figure.But can't prevent because of the displacement that external force caused from left side among the figure.The bobbin of these flange 33 forms perhaps can provide support, but but can't fixing cord, so it is still not satisfactory.

Therefore, in this technical field, need badly a kind of simplify the transformer making step and can provide fixing simultaneously and the bobbin that supports to address the above problem.

The purpose of utility model is to provide a kind of bobbin of transformer, to solve the problem of lead easy fracture and displacement in the known bobbin.And, because lead can be fixed and support well in the utility model, thus lead be connected to the tie lines pin before must twisted wire, can omit a making step.

Above-mentioned purpose of the present utility model is achieved in that a kind of bobbin of transformer, and its key is that this bobbin comprises at least: a column hollow body; One first blade is formed on the surface of this column hollow body, and an end of this first blade has one first flange, and this first flange has a thinner section to twine a lead, and this first blade is separated out elementary and secondary; At least one second blade, be parallel to this first blade and be formed at side by side on the secondary surface of this column hollow body, one section of each this second blade has one second breach, and an end of each this second blade has one second flange, and this second flange has one second unfilled corner; At least one the 3rd blade, be positioned between this adjacent second blade, each this three-vaned one section has one the 3rd breach, and each this three-vaned end has one the 3rd flange, the 3rd flange has one the 3rd unfilled corner, and the 3rd unfilled corner and this second unfilled corner have a difference in level; A plurality of elementary pins; And two secondary pins.

First side of above-mentioned bobbin can also be wound with one first lead, and second side of above-mentioned bobbin also can be wound with one second lead.

Second side of above-mentioned bobbin preferably also has an initial line pin and a tie lines pin, and above-mentioned second lead is to originate in this initial line pin and end at this tie lines pin.

Above-mentioned initial line pin and above-mentioned tie lines pin both can be positioned at the identical two ends of above-mentioned column hollow body, also can be positioned at the opposite end of above-mentioned column hollow body.

The bobbin of transformer described in the utility model, wherein above-mentioned second breach and above-mentioned the 3rd breach preferably are positioned at homonymy and are arranged in a straight line.

Above-mentioned column hollow body can be in order to hold a columnar iron core; Above-mentioned first blade can be elementary and secondary in order to be separated out; Above-mentioned second blade and above-mentioned the 3rd blade then can be in order to be separated out the branch groove of plurality of secondary.

This shows that the bobbin of transformer provided by the utility model comprises a column hollow body, one first blade, at least one second blade, at least one the 3rd blade, a plurality of elementary pin and two secondary pins at least.Wherein this first blade shaped is formed on the secondary surface of this column hollow body, and an end of this first blade has one first flange, and this first flange has a thinner section and twines for lead, and this first blade is separated out elementary and secondary; This second blade is formed on the surface of this column hollow body side by side, and each this second blade has one second breach and one second unfilled corner; The 3rd blade is to be positioned between this adjacent second blade, and each the 3rd blade has one the 3rd breach and one the 3rd unfilled corner, and the 3rd unfilled corner and this second unfilled corner have a difference in level.

Below in conjunction with accompanying drawing shown in the embodiment, the utility model is described in further detail.

Fig. 1 (a) is a known bobbin structure;

Fig. 1 (b) is another known bobbin structure;

Fig. 2 is a bobbin structure of the present utility model;

Fig. 3 (a) is first embodiment that winds the line with bobbin structure of the present utility model;

Fig. 3 (b) is second embodiment that winds the line with bobbin structure of the present utility model.

See also Fig. 2, bobbin of the present utility model (bobbin) 100 comprises column hollow body 200, one first blade 310, at least one second blade 320, at least one the 3rd blade 330, a plurality of elementary pin and two secondary pin 500a and 500b.Wherein this column hollow body 200 is in order to hold an iron core (not showing for example so-called E core among the figure) and to twine lead thereon to form a transformer.Wherein this lead also comprises primary wires (not shown) and secondary wire 600 (being designated hereinafter simply as lead 600).In addition, this first blade 310 is to be formed on the surface of this column hollow body 200 and to be separated out elementaryly and secondary, and an end of this first blade 310 has one first flange, and this first flange has a thinner section 315 to twine a lead 600.

As can be seen from Figure 2, second blade 320 is parallel to this first blade 310, be formed in mode arranged side by side on the secondary surface of this column hollow body 200, one section of each this second blade 320 has one second breach 360b, and an end of each this second blade 320 has one second unfilled corner 325.The 3rd blade 330 is positioned at 320 in this adjacent second blade to be separated out a plurality of minutes secondary grooves that are positioned at this column hollow body 200.Also promptly by elementary be first blade 310, second blade 320, the 3rd blade 330, second blade 320, the 3rd blade 330 in regular turn towards secondary looking ... Deng.One section of each the 3rd blade 330 has one the 3rd breach 360c, and an end of each the 3rd blade 330 has one the 3rd flange.This second breach 360b and the 3rd breach 360c are arranged in a straight line.The 3rd unfilled corner 335 that it should be noted that the 3rd flange is positioned at homonymy with second unfilled corner 325 of this second flange but is not to be positioned on the same level height.In other words, the 3rd unfilled corner 335 has a difference in level with this second unfilled corner 325.

First embodiment of coiling

See also Fig. 3 (a), the secondary pin of this bobbin 100 is respectively initial line pin (end) 500a and tie lines pin (end) 500b, also promptly is wound in secondary lead 600 and is to originate in this initial line pin 500a and end in this tie lines pin 500b.This two pin is the homonymy that is set on the geometric position for the circuit layout that is used this transformer in this first embodiment.When this lead 600 by this initial line pin 500b to the way of this tie lines pin 500b, can through and be wound in above-mentioned minute groove (twining near secondary branch groove earlier) and form coil (winding).When the wire circle (winding number) of a certain minute groove with after preset value conforms to, this lead continues to form coil after can extending to next minute groove of adjacency via the second breach 360b or the 3rd breach 360c, so can form a plurality of selectable magnitudes of voltage.Yet for the purpose of simplifying accompanying drawing, the utility model is not drawn the lead that is wound on the branch groove, only draws the part lead of contiguous initial line pin 500a and tie lines pin 500b.

From Fig. 3 (a) as can be seen, wherein, lead 600 finishes and when desiring take-up when twining on minute groove, this lead 600 passes through the top of second unfilled corner 325 of this second blade 320 in regular turn, pass then the 3rd blade 330 the 3rd unfilled corner 335 the below and connect this to tie lines pin 500b.So, the difference in level between this second unfilled corner 325 and the 3rd unfilled corner 335 can provide a good supporting and fixing to this lead 600.

Second embodiment of coiling

See also Fig. 3 (b), the secondary pin of this bobbin 100 is respectively initial line pin (end) 500a and tie lines pin (end) 500b, also promptly is wound in secondary lead 600 and is to originate in this initial line pin 500a and end in this tie lines pin 500b.For being used the circuit layout of this transformer, two secondary pins are the opposition sides that are set on the geometric position in this second embodiment.For example this initial line pin 500a is positioned at this secondary place, and this tie lines pin 500b is positioned at this elementary place, and also promptly this initial line pin 500a and this tie lines pin 500b are the opposite end that is positioned at this column hollow body 200.When this lead 600 by this initial line pin 500b to the way of this tie lines pin 500b, can through and be wound in above-mentioned minute groove and form coil (winding).When the wire circle (windingnumber) of a certain minute groove with after preset value conforms to, this lead can so can form a plurality of selectable magnitudes of voltage via breach 360 around continue to form coil to next minute groove of adjacency.Yet for the purpose of simplifying accompanying drawing, the utility model is not drawn the lead that is wound on the branch groove, only draws the part lead of contiguous initial line pin 500a and tie lines pin 500b.

From Fig. 3 (b), as can be seen, wherein, lead 600 finishes and when desiring take-up, this lead 600 is wound in the thinner section 315 of this first blade 310 earlier, is connected to tie lines pin 500b towards elementary extension then when twining on minute groove.So this thinner section 315 can provide a good supporting and fixing to this lead 600.

See also Fig. 3 (a) or Fig. 3 (b), in sum, the utility model obviously has a comprehensive fixing function that reaches support wire.Can obtain good fixing because lead 600 is wound in this thinner section 315, also be the external force that the utility model can be resisted horizontal direction; For external force, can be resisted by this second blade 320 or the 3rd blade 330 from vertical direction.So this lead can not be easy to fracture, therefore can solve the problem that is short-circuited because of the lead displacement in the known technology.And, because lead can be fixed and support well in the utility model, thus lead be connected to the tie lines pin before must twisted wire, can omit a making step.

The above is preferred embodiment of the present utility model only, is not in order to limit protection range of the present utility model; All other do not break away from the equivalence finished under the spirit disclosed in the utility model and changes or modify, and all should be included in the scope that claim protects.

Claims (8)

1, a kind of bobbin of transformer is characterized in that this bobbin comprises at least;

One column hollow body;

One first blade is formed on the surface of this column hollow body, and an end of this first blade has one first flange, and this first flange has a thinner section to twine a lead, and this first blade is separated out elementary and secondary;

At least one second blade, be parallel to this first blade and be formed at side by side on the secondary surface of this column hollow body, one section of each this second blade has one second breach, and an end of each this second blade has one second flange, and this second flange has one second unfilled corner;

At least one the 3rd blade, be positioned between this adjacent second blade, each this three-vaned one section has one the 3rd breach, and each this three-vaned end has one the 3rd flange, the 3rd flange has one the 3rd unfilled corner, and the 3rd unfilled corner and this second unfilled corner have a difference in level;

A plurality of elementary pins; And

Two secondary pins.

2, the bobbin of transformer as claimed in claim 1 is characterized in that first side of above-mentioned bobbin also is wound with one first lead.

3, the bobbin of transformer as claimed in claim 1 is characterized in that second side of above-mentioned bobbin also is wound with one second lead.

4, the bobbin of transformer as claimed in claim 3 is characterized in that second side of above-mentioned bobbin also has an initial line pin and a tie lines pin, and above-mentioned second lead is to originate in this initial line pin and end at this tie lines pin.

5, the bobbin of transformer as claimed in claim 4 is characterized in that above-mentioned initial line pin and above-mentioned tie lines pin are the identical two ends that are positioned at above-mentioned column hollow body.

6, the bobbin of transformer as claimed in claim 4 is characterized in that above-mentioned initial line pin and above-mentioned tie lines pin are the opposite end that is positioned at above-mentioned column hollow body.

7, the bobbin of transformer as claimed in claim 1 is characterized in that above-mentioned second breach and above-mentioned the 3rd breach are positioned at homonymy and are arranged in a straight line.

8, the bobbin of transformer as claimed in claim 1 is characterized in that accommodating a columnar iron core in the above-mentioned column hollow body.

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