CN201378501Y

CN201378501Y - Transformer and winding rack thereof

Info

Publication number: CN201378501Y
Application number: CN200920003035U
Authority: CN
Inventors: 高国峰; 陈彦州; 詹宏民; 王丽雯
Original assignee: QUIETEK Corp
Current assignee: QUIETEK Corp
Priority date: 2009-03-11
Filing date: 2009-03-11
Publication date: 2010-01-06
Anticipated expiration: 2019-03-11

Abstract

The utility model relates to a transformer and a winding rack thereof, wherein the winding rack comprises a winding shaft and a terminal seat; and an accommodating groove is formed in a wire-incoming region of a secondary side winding region in an inwards concave mode, so when a twisted wire section head of one end of a winding wire is wound into the wire-incoming region, a small loop of the twisted wire section head can be accommodated in the accommodating groove. When subsequent winding wires are wound into a plurality of wire layers along the winding shaft for forming a winding, the small loop can not be inserted into a plurality of wire layers of the wire groove, and interlayer short-circuit condition after the current flows into the winding is prevented.

Description

Transformer and drum stand thereof

Technical field

The utility model is about a kind of transformer and drum stand thereof, refers to transformer and the drum stand thereof of a kind of solution because of the little increase short circuit problem that the section of twisting thread is derived in winding wire line footpath especially.

Background technology

See also shown in Figure 4ly, be existing miniature transformer 50 structures, it includes:

One drum stand 60, it includes a spool 61 and terminal base 64, these spool 61 outsides are formed with a dividing plate 62, to separate out primary side spiral district 611 and secondary side spiral district 612, wherein this secondary side spiral district 612 is formed with the parallel winding slot 63 of plural number, wherein includes into wire casing 631 and to go out wire casing 632;

One first side winding 70 is reeled along 611 outsides, primary side spiral district by a lead, two the end of a thread of this lead again with corresponding terminal 641 welding of terminal base 64;

One secondary side winding 71, by a lead from this secondary side spiral district 612 go into wire casing 631 after, beginning is reeled a few along 612 outsides, secondary side spiral district, be pulled in regular turn again in each winding slot 63 afterwards and reel, last after going out wire casing 632 outlets with corresponding terminal 641 welding of terminal base 64, so the plural internal and external line layer of formation in each winding slot 63; And

Two ferromagnetic cores 80, subtend are mounted on this roll 61 outsides, and pass the middle through hole of this roll, constitute an electromagnetic circuit.

In general the wire diameter of secondary side winding 71 is tiny than primary side, its line directly is about between 0.025mm～0.08mm, and lead two the end of a thread finally all must weld with the corresponding terminal of terminal base 64, so it is during secondary side winding area 71, easy because of tension force deficiency or the not enough situation generation that causes broken string of pulling force in Wire-wound.Be the intensity of reinforcement with terminal 641 welds, this lead the end of a thread can be made twisted wire in advance, after promptly earlier lead the end of a thread place line segment being deflected into several strands, impose respectively in two opposite ends again along counterclockwise rotation, to constitute the section of twisting thread 711, this section of twisting thread 711 two ends can form a partial circulating 712 respectively by nature.

Please cooperate consult shown in Figure 5, when the thin wire of above-mentioned secondary side winding 71 usefulness is wound in the secondary side spiral district 612 of roll 61, one end partial circulating 712 of the one section of twisting thread 711 can be welded on the

corresponding terminal

641, and 712 of other end partial circulatings can be placed in this and go on the wire casing 631.The program of initial stage coiling is because the position that the partial circulating of the section of twisting thread 711 712 is placed is imappropriate, make the partial circulating 712 of this section of twisting thread 711 understand perks, treat thin wire in going on the wire casing 631 to reel after a few, this is gone into wire casing 631 more outer field line layers and can interfere with this partial circulating 712 and touch; When feeding electric current, outer layer line layer is different with partial circulating 712 voltage pressure reduction, and pressure reduction can cause short circuit, arcing, promptly so-called layer short circuit state when excessive.Therefore, the thin wire that has the section of twisting thread 711 for use can cause above-mentioned danger because of the partial circulating 712 of the section of twisting thread 711 really as winding, is necessary to propose structure-improved in fact.

Summary of the invention

Because above-mentioned transformer shortcoming, main purpose of the present utility model provides a kind of transformer and drum stand thereof of improvement, causes short circuit with the partial circulating of avoiding twisting thread with the line layer interference of winding.

Desiring to reach the employed major technique means of above-mentioned purpose includes for making this transformer:

One drum stand, it includes a spool and a terminal base, this spool outside is formed with a dividing plate, to separate out primary side spiral district and secondary side spiral district, wherein this secondary side spiral district is formed with the parallel winding slot of plural number, wherein plural winding slot includes at least onely goes into wire casing and at least onely goes out wire casing, respectively goes into wire casing again and further is formed with a storage tank;

One first side winding is reeled along the primary side spiral district outside by a lead, two the end of a thread of this lead again with the corresponding terminal welding of terminal base;

At least one secondary side winding, form in this secondary side spiral district by at least one Wire-wound, each lead two end has been respectively the section of twisting thread, wherein the partial circulating of the section of twisting thread is placed in correspondence and goes in the storage tank of wire casing, and another twists thread Duan Ze after correspondence goes out the wire casing outlet, with the corresponding terminal welding of terminal base; And

Two ferromagnetic cores, subtend are mounted on this roll outside, and pass the middle through hole of this roll, constitute an electromagnetic circuit.

Above-mentioned the utility model mainly sets to the concave and forms a storage tank in the wire casing place of going in the secondary side spiral district of spool, when the lead one end section of the twisting thread partial circulating that order winds secondary side winding was placed in into wire casing, can be contained in this storage tank of going into wire casing not can perk and protrude on the wire casing; Thus, follow-up this line layer of going on the wire casing that is wound in will can not interfered with the section of twisting thread partial circulating, avoid the layer short circuit state to produce.

As shown in the above description, the utility model drum stand includes:

One spool, its outside is formed with a dividing plate, and to separate out primary side spiral district and secondary side spiral district, wherein this secondary side spiral district is formed with the parallel winding slot of plural number, wherein include and at least onely go into wire casing and at least onely go out wire casing, this is gone into wire casing and further is formed with a storage tank again; And

One terminal base is arranged at the outside, bottom surface of this spool, and includes plural metal terminal.

The wire casing of going into of above-mentioned drum stand secondary side inwardly is formed with a storage tank, can be ccontaining for the section of the twisting thread partial circulating of the thin wire of secondary side winding, avoid touching with the follow-up line layer interference that is wound on the wire casing because of protruding in the wire casing, and can avoid when electric current feeds, produce the layer short circuit state.

Description of drawings

Fig. 1 is the fragmentary cross-sectional view of the utility model transformer first preferred embodiment, and wherein this first side winding and secondary side winding are represented with section;

Fig. 2 is the partial enlarged drawing of Fig. 1;

Fig. 3 is the fragmentary cross-sectional view of the utility model transformer second preferred embodiment, and wherein this first side winding and secondary side winding are represented with section;

Fig. 4 is existing miniature transformer fragmentary cross-sectional view, and wherein this first side winding and secondary side winding are represented with section; And

Fig. 5 is the partial enlarged drawing of Fig. 4.

Embodiment

See also shown in Figure 1ly, be the fragmentary cross-sectional view of first preferred embodiment of the utility model transformer 10, it includes:

One drum stand 20, it includes a spool 21 and two-terminal seat 24, these spool 21 outsides are formed with a dividing plate 22, to separate out primary side spiral district 211 and secondary side spiral district 212, wherein this secondary side spiral district 212 is formed with the parallel winding slot 23 of plural number, wherein plural winding slot 23 includes at least onely goes into wire casing 231 and at least onely goes out wire casing 232, respectively goes into wire casing 231 again and further is formed with a storage tank 233; This storage tank 233 forms along going into wire casing 231 bottom surfaces in present embodiment, to constitute a ring-type storage tank 233;

One first side winding 30 is reeled along 211 outsides, primary side spiral district by a lead, two the end of a thread of this lead again with corresponding terminal 241 welding of terminal base 24;

At least one secondary side winding 31, form in this secondary side spiral district 212 by at least one Wire-wound, each lead two end has been respectively a section of twisting thread 311, cooperation is consulted shown in Figure 2, wherein the partial circulating 312 of a section of twisting thread 311 is placed in correspondence and goes in the storage tank 23 of wire casing 231, another section of twisting thread 311 is then after correspondence goes out wire casing 232 outlets, with corresponding terminal 241 welding of terminal base 24; And

Two ferromagnetic cores 40, subtend are mounted on this roll 61 outsides, and pass this roll 61 middle through hole (not shown), constitute an electromagnetic circuit.

See also shown in Figure 3, be the utility model transformer 10a second preferred embodiment, because the lead one end section of twisting thread 311 partial circulatings 312 of secondary side winding 31 enter the wire casing 231 of going in secondary side spiral district 212 fixed position is arranged, so the storage tank 233a of present embodiment drum stand 20a is only to should the section of twisting thread partial circulating 312 positions, wire casing 231 bottom surface local locations form in going into.

As shown in the above description, the utility model drum stand 20 includes:

One spool 21, its outside is formed with a dividing plate 22, to separate out primary side spiral district 211 and secondary side spiral district 212, wherein this secondary side spiral district 212 is formed with the parallel winding slot 23 of plural number, wherein include and at least onely go into wire casing 231 and at least onely go out wire casing 232, this is gone into wire casing 231 and further is formed with a storage tank 233 again; And

Two-terminal seat 24 is arranged at the outside, bottom surface of this spool 21, and includes plural metal terminal 241.

Moreover above-mentioned storage tank 233 can form a ring along going into wire casing 231 bottom surfaces, also can only be formed at these section of twisting thread partial circulating 312 positions relatively, promptly is formed at the local location that this goes into wire casing 231 bottom surfaces.

See also shown in Figure 2, because wire casing 231 places of going in the secondary side spiral district 212 of spool 21 set to the concave and form a storage tank 233,233 pairs of this storage tanks should the section of twisting thread partial circulating 312 positions, therefore during the thin wire lambda line of secondary side winding 31, its section of twisting thread partial circulating 312 can at first be placed in this storage tank 233, can be to going into perk on the wire casing 231; Therefore follow-uply be wound in this and go into plural internal and external line layer on the wire casing 231, will be can interfere, but, this partial circulating 312 is embedded in the storage tank 233 along with the formation of plural line layer with the section of twisting thread partial circulating 312, avoid the layer short circuit state to produce fully, effectively improve the fail safe that transformer uses.

Claims

1. a transformer includes a drum stand, a first side winding, at least one secondary side winding and two ferromagnetic cores, it is characterized in that this drum stand includes:

One spool, its outside is formed with a dividing plate, to separate out primary side spiral district and secondary side spiral district, wherein this secondary side spiral district is formed with the parallel winding slot of plural number, include in the plural again coiling and at least onely go into wire casing and at least onely go out wire casing, respectively go into wire casing again and further be formed with a storage tank; And

2. transformer as claimed in claim 1 is characterized in that: this storage tank is formed at this bottom surface of going into wire casing, constitutes a ring.

3. transformer as claimed in claim 1 is characterized in that: this storage tank is formed at this local location of going into the bottom surface of wire casing, with relative this section of twisting thread partial circulating position.

4. the drum stand of a transformer is characterized in that including:

One spool, its outside is formed with a dividing plate, to separate out primary side spiral district and secondary side spiral district, wherein this secondary side spiral district is formed with the parallel winding slot of plural number, wherein plural winding slot includes at least onely goes into wire casing and at least onely goes out wire casing, respectively goes into wire casing again and further is formed with a storage tank; And

5. as the drum stand of transformer as described in the claim 4, it is characterized in that: this storage tank is formed at this bottom surface of going into wire casing, constitutes a ring.

6. as the drum stand of transformer as described in the claim 4, it is characterized in that: this storage tank is formed at this local location of going into the bottom surface of wire casing.