CN203013466U

CN203013466U - Stacked vertical transformer

Info

Publication number: CN203013466U
Application number: CN 201220646463
Authority: CN
Inventors: 王奉瑾
Original assignee: ZHONGSHAN PURUNSI POWER SUPPLY EQUIPMENT TECHNOLOGY Co Ltd
Current assignee: ZHONGSHAN PURUNSI POWER SUPPLY EQUIPMENT TECHNOLOGY Co Ltd
Priority date: 2012-11-28
Filing date: 2012-11-28
Publication date: 2013-06-19
Anticipated expiration: 2022-11-28

Abstract

The utility model relates to a stacked vertical transformer, which comprises three three-phase winding units (1). Each three-phase winding unit (1) comprises windings (2) which are formed by stacking zigzag winding sheets (21). Four windings (2) are evenly arranged in a vertical direction. Three first through holes (22) are formed in the middle part of each winding (2). High-voltage windings (3) are arranged between every two adjacent windings (2) in the vertical direction. Three second through holes (32) are arranged in the middle part of each high-voltage winding (3). Iron cores (4) penetrate through the first through holes (22) and the second through holes (32). The upper ends and the lower ends of three iron cores (4) are respectively connected through two connecting iron cores (5). The transformer is of a vertical structure on the whole; and by stacking the zigzag windings and high-voltage coils and by overlaying primary windings and secondary windings, the reduction of leakage inductance is facilitated and the transmission efficiency of the transformer is improved.

Description

Stacked vertical transformer

[technical field]

The utility model relates to a kind of stacked vertical transformer.

[background technology]

transformer is the conversion alternating voltage, the device of electric current and impedance, transformer is comprised of magnetic core and coil, coil has two or more winding, winding and magnetic core are collectively referred to as the power transformer body, it is the circuit part of setting up magnetic field and electric energy transmitting, on principle, magnetic core is the magnetic circuit that consists of transformer, it is magnetic energy with the electric energy conversion of primary circuit, again this magnetic energy is converted into the electric energy of secondary circuit, therefore, magnetic core is the mediator that energy transmits, structurally, magnetic core is the skeleton that consists of transformer, put the coil with insulation on its core post, and securely they are supported and compress, coil has two or more windings, wherein connect the winding of power supply primary coil, remaining winding is secondary coil.

Winding is divided into input winding and output winding by function, the input winding converts electrical energy into magnetic field energy, and the output winding is converted to electric energy output with magnetic energy, by input winding and the different transformations that realize of output umber of turn, and the performance of transformer how, basically decided by winding.

Existing transformer has the following disadvantages:

One, the existing single magnetic circuit of transformer adopting are in needs manufacture method relative complex during High-current output more;

Two, existing transformer is not easy to automation mechanized operation.

[utility model content]

Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, stacked vertical transformer is provided, the whole formation of this transformer vertical structure, use the folded use of zigzag winding and high-voltage line covering, armature winding and secondary winding are superimposed with and are beneficial to the minimizing leakage inductance, improve the efficiency of transmission of transformer.

For achieving the above object, the utility model has adopted following technical proposals:

Stacked vertical transformer, comprise 3 three-phase winding elements, each described three-phase winding element comprises by the stacked winding that forms of zigzag winding sheet, 4 described winding in the vertical directions are evenly distributed, be provided with 3 the first through holes in described winding middle part, be provided with the high pressure winding between neighbouring two groups of described windings, be provided with 3 the second through holes in described high pressure winding middle part, be equipped with iron core in the middle of described the first through hole and described the second through hole, two ends, 3 described iron core up and down connect iron core by 2 and connect.

The high pressure winding comprises three coils as mentioned above, be provided with insulating barrier on described high pressure winding surface, three described coils are connected as a single entity by described insulating barrier, are provided with two binding posts on described coil side, and three described coils are electrically connected to two described binding posts.

Insulating barrier is the epoxy fiberglass layer as mentioned above.

Three single-phase employing parallel-connection structures of high pressure winding as mentioned above.

the zigzag winding sheet comprises 4 straight type bars as mentioned above, the two ends of described straight type bar alternately connect into the curve strip with adjacent two straight type bars by upper arc intercell connector and arc lower intercell connector, described upper arc intercell connector surrounds for the under shed that inserts iron core with two that are connected straight type bars, described arc lower intercell connector surrounds for the upper shed of inserting iron core with two that are connected straight type bars, consist of an acute angle A between described straight type bar and vertical axis X, the angular range of described acute angle A is 0～15 °, the length L of described straight type bar is not less than described upper arc intercell connector, the chord length S of arc lower intercell connector, make described under shed, upper shed is along vertical axis directions X growth strip opening.

The single-phase employing 2 of winding and 3 string structures connect as mentioned above.

The thickness of zigzag winding sheet is 10～20mm as mentioned above.

Be provided with the welding ear on straight type bar as mentioned above in the outside.

Go up as mentioned above the arc intercell connector and be semi-annular shape, described arc lower intercell connector is semi-annular shape.

Acute angle A is 0 ° as mentioned above.

The beneficial effects of the utility model are:

1, laminated type transformer among the utility model, comprise 3 three-phase winding elements, each three-phase winding element comprises by the stacked winding that forms of zigzag winding sheet, 4 winding in the vertical directions are evenly distributed, be provided with 3 the first through holes in the winding middle part, be provided with the high pressure winding between neighbouring two groups of windings, be provided with 3 the second through holes in high pressure winding middle part, be equipped with iron core in the middle of the first through hole and the second through hole, two ends, 3 iron core up and down connect iron core by 2 and connect, the whole formation of this transformer vertical structure, use the folded use of zigzag winding and high-voltage line covering, armature winding and secondary winding are superimposed with and are beneficial to the minimizing leakage inductance, improve the efficiency of transmission of transformer.

2, among the utility model, transformer efficiency is large, and good heat dissipation effect with respect to traditional transformer weight reducing 30%～40%, is applicable to single-phase single magnetic circuit and also is applicable to heterogeneous multipath magnetic circuit, is convenient to carrying and installs.

3, among the utility model, the high pressure winding comprises three coils, be provided with insulating barrier on high pressure winding surface, three coils are connected as a single entity by insulating barrier, be provided with two binding posts on the coil side, three coils are electrically connected to two binding posts, at the surface coverage insulating barrier of high-tension coil, be convenient to produce and install, be convenient to quality control.

4, among the utility model, the mode of insulating barrier by vacuum pressing and casting covers on coil, and be easy to process, guarantees the high-performance of coil.

5, among the utility model, the winding sheet shortens the length of Transformer Winding sheet greatly with respect to traditional design, thereby further makes the volume-diminished of transformer, is convenient to installation and the carrying of transformer;

6, be provided with the welding ear among the utility model on the winding sheet, be convenient to welding and the assembling of winding sheet, effectively the improving product performance, enhance productivity;

[description of drawings]

Fig. 1 is explosive view of the present utility model;

Fig. 2 is stereogram of the present utility model;

Fig. 3 is the three-dimensional view of the utility model winding;

Fig. 4 is the three-dimensional view of the utility model high pressure winding;

Fig. 5 is the phantom of the utility model high pressure winding;

Fig. 6 is I shown in Figure 4 section partial enlarged drawing;

Fig. 7 is the utility model zigzag winding sheet front view.

[embodiment]

Below in conjunction with accompanying drawing, the utility model is done further detailed description.

as extremely shown in Figure 7 in Fig. 1, stacked vertical transformer, comprise 3 three-phase winding elements 1, each described three-phase winding element 1 comprises the winding 2 that is laminated by zigzag winding sheet 21, 4 described winding 2 in the vertical directions are evenly distributed, be provided with 3 the first through holes 22 in described winding 2 middle parts, be provided with high pressure winding 3 between neighbouring two groups of described windings 2, be provided with 3 the second through holes 32 in described high pressure winding 3 middle parts, be equipped with iron core 4 in the middle of described the first through hole 22 and described the second through

hole

32, 3 described iron cores connect iron core 5 connections by 2 in two ends Shang Xia 4, whole formation 3 is 9 magnetic circuit transformers mutually, the whole formation of this transformer vertical structure, use the folded use of zigzag winding and high-voltage line covering, armature winding and secondary winding are superimposed with and are beneficial to the minimizing leakage inductance, improve the efficiency of transmission of transformer, winding consists of stacked structure, power is large, good heat dissipation effect, with respect to traditional transformer weight reducing 30%～40%, be convenient to carrying and install.

as Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, in the present embodiment, described high pressure winding 3 comprises three coils 31, be provided with insulating barrier 33 on described high pressure winding 3 surfaces, three described coils 31 are connected as a single entity by described insulating barrier 33, be provided with two binding posts 34 on described coil 31 sides, three described coils 31 are electrically connected to two described binding posts 34, surface coverage insulating barrier at high-tension coil, prevent that high-tension coil from causing injury to the people, guarantee the fail safe that coil uses, three coils are connected by insulating barrier, promote efficiency of assembling, be convenient to whole wiring.

As Fig. 4, Fig. 5, shown in Figure 6, in the present embodiment, described insulating barrier 33 is preferably the epoxy fiberglass layer, good insulation preformance is convenient to processing and manufacturing, as another kind of execution mode of the present utility model, described insulating barrier 33 can also be set to insulating resin, the good insulation preformance of insulating resin is convenient to the high pressure winding coil is coated, and is convenient to machine-shaping.

As Fig. 1, Fig. 2 and shown in Figure 3, in the present embodiment, as a kind of optimal way of the present utility model, the single-phase employing 3 of three described high pressure windings 3 and structure, the single high-voltage line bag number of turn 1116 circles, the inner series wiring that adopts of high-voltage line bag.

as Fig. 3, shown in Figure 7, in the present embodiment, described zigzag winding sheet 21 comprises 4 straight type bars 101, the two ends of described straight type bar 101 alternately connect into the curve strip with adjacent two straight type bars 101 by upper arc intercell connector 102 and arc lower intercell connector 103, described upper arc intercell connector 102 surrounds for the under shed 104 that inserts iron core with two that are connected straight type bars 101, described arc lower intercell connector 103 surrounds for the upper shed 105 of inserting iron core with two that are connected straight type bars 101, consist of an acute angle A between described straight type bar 101 and vertical axis X, the angular range of described acute angle A is 0～15 °, the length L of described straight type bar 101 is not less than described upper arc intercell connector 102, the chord length S of arc lower intercell connector 103, make described under shed 104, upper shed 105 is along vertical axis directions X growth strip opening, the length of Transformer Winding sheet is shortened in this design greatly with respect to traditional design, thereby further make the volume-diminished of transformer, be convenient to installation and the carrying of transformer.

As Fig. 3, shown in Figure 7, in the present embodiment, the single-phase employing 2 of described winding 2 and 3 string structures connect, and totally 42 circles, add up to 84.

As Fig. 3, shown in Figure 7, in the present embodiment, the thickness of described zigzag winding sheet is 10～20mm, is preferably 14mm.

As Fig. 3, shown in Figure 7, in the present embodiment, be provided with welding ear 106 on the described straight type bar 101 in the outside, be convenient to welding and the assembling of winding sheet, effectively the improving product performance, enhance productivity.

As Fig. 3, shown in Figure 7, in the present embodiment, described upper arc intercell connector 102 is semi-annular shape, and described arc lower intercell connector 103 is semi-annular shape, there is no the corner angle of needle-holding hand, is convenient to assembling, and image is attractive in appearance.

As shown in Figure 3, in the present embodiment, described acute angle A is 0 °, and the zigzag winding sheet of this kind shape and structure can reduce the length of zigzag winding to greatest extent, obtains best electromagnetic transmission.

Claims

1. stacked vertical transformer, it is characterized in that: comprise 3 three-phase winding elements (1), each described three-phase winding element (1) comprises the winding (2) that is laminated by zigzag winding sheet (21), 4 described windings (2) in the vertical direction is evenly distributed, be provided with 3 the first through holes (22) in described winding (2) middle part, be provided with high pressure winding (3) between neighbouring two groups of described windings (2), be provided with 3 the second through holes (32) in described high pressure winding (3) middle part, be equipped with iron core (4) in the middle of described the first through hole (22) and described the second through hole (32), two ends, 3 described iron cores (4) up and down connect iron core (5) by 2 and connect.

2. stacked vertical transformer according to claim 1, it is characterized in that: described high pressure winding (3) comprises three coils (31), be provided with insulating barrier (33) on described high pressure winding (3) surface, three described coils (31) are connected as a single entity by described insulating barrier (33), be provided with two binding posts (34) on described coil (31) side, three described coils (31) are electrically connected to two described binding posts (34).

3. stacked vertical transformer according to claim 2, it is characterized in that: described insulating barrier (33) is the epoxy fiberglass layer.

4. stacked vertical transformer according to claim 2, is characterized in that: the single-phase employing parallel-connection structure of three described high pressure windings (3).

5. stacked vertical transformer according to claim 1, it is characterized in that: described zigzag winding sheet (21) comprises 4 straight type bars (101), the two ends of described straight type bar (101) alternately connect into the curve strip with adjacent two straight type bars (101) by upper arc intercell connector (102) and arc lower intercell connector (103), described upper arc intercell connector (102) surrounds for the under shed (104) that inserts iron core with two that are connected straight type bars (101), described arc lower intercell connector (103) surrounds for the upper shed (105) of inserting iron core with two that are connected straight type bars (101), consist of an acute angle A between described straight type bar (101) and vertical axis X, the angular range of described acute angle A is 0～15 °, the length L of described straight type bar (101) is not less than described upper arc intercell connector (102), the chord length S of arc lower intercell connector (103), make described under shed (104), upper shed (105) is along vertical axis directions X growth strip opening.

6. stacked vertical transformer according to claim 1, is characterized in that: the single-phase employing 2 of described winding (2) and the connection of 3 string structures.

7. stacked vertical transformer according to claim 5, it is characterized in that: the thickness of described zigzag winding sheet is 10～20mm.

8. stacked vertical transformer according to claim 4, is characterized in that: be provided with welding ear (106) on the described straight type bar in the outside (101).

9. stacked vertical transformer according to claim 4, it is characterized in that: described upper arc intercell connector (102) is semi-annular shape, and described arc lower intercell connector (103) is semi-annular shape.

10. stacked vertical transformer according to claim 4, it is characterized in that: described acute angle A is 0 °.