CN208970307U - A kind of voltage conversion device of Double-voltage transformer - Google Patents

Abstract

The utility model relates to electric power power transformation or distribution technique fields, disclose a kind of voltage conversion device of Double-voltage transformer, including iron core-closed, high-tension coil, low-voltage coil and hard bridgeware, high-tension coil and low-voltage coil are around in iron core-closed opposite sides respectively；High-tension coil includes first coil and the second coil, and first coil and the second coil are respectively arranged on the iron core-closed opposite end positioned at the same side；First coil is equipped with first input end and the first output end, and first input end and the first output end are respectively arranged on the opposite end of first coil；Second coil is equipped with the second input terminal and second output terminal, and the second input terminal and second output terminal are respectively arranged on the opposite end of the second coil；First coil is connected with the second coil by hard bridgeware, and hard bridgeware includes two conducting ends.The utility model can be improved the operation performance of Double-voltage transformer.

Description

A kind of voltage conversion device of Double-voltage transformer

Technical field

The utility model relates to electric power power transformation or distribution technique fields, more particularly to a kind of voltage of Double-voltage transformer Conversion equipment.

Background technique

With the development of economy, electric load is sharply increasing, and especially exhausting electricity consumption and township enterprise's electricity consumption is fast Speed increases, and 10KV distribution voltage has been unable to meet the demand of electricity consumption.And conveying capacity can be increased with network level by improving, expand and supplies Electric range reduces network loss, improves electric network composition, and improve the effective way of power quality, this not only becomes current distribution hair The trend of exhibition, and be also an effective means for reinforcing electricity needs management.20KV nominal voltage include gross investment it is low, supply Electric radius is big, power supply capacity is big, power supply quality is high, always takes up little area, line loss per unit decline, and management link is simple and direct, and non-ferrous metal uses The many advantages not available for the common distribution of these 35KV and 10KV such as largely reduce.The distribution transformer of 20KV grade meet the tendency of and It is raw.In view of many existing distribution lines are 10KV mostly, this just needs one kind that can be used for 10KV distribution system, can also use In the transformer of 20KV distribution system, substantial contribution can be saved for newly-built 20KV distribution network systems in this way.It is accounted for change simultaneously The requirement that depressor itself is lost, it is energy saving to save power supply cost.For transformer there are also the requirement of mechanical performance, work as electricity When stream flows through transformer winding, under magnetic flux leakage and the collective effect of electric current, electromotive force will be generated in winding conductor, electric current is got over Greatly, this electromotive force is bigger.It, be by the effect of huge short circuit current especially in transformer suddenly-applied short circuit.

It is CN201698878U that State Intellectual Property Office of the People's Republic of China, which discloses notification number on January 5th, 2011, Patent document, title is Double-voltage transformer.It is by pressing winding along closure iron the high-pressure side winding of existing transformer Mandrel is to two parts winding is divided into, so that two parts winding is in series connection and two kinds of connection types in parallel according to demand to select a side Formula connection, transformation of the voltage of the high-pressure side winding of Lai Shixian transformer between two kinds of voltages.But it is iron core-closed it is outer around What is be all made of when two parts winding of system is coil winding, realize two parts windings in series or it is in parallel when, using coil around System has the following problems:

1, coil uses conducting wire, and the insulating layer wrapped up outside conducting wire can wear or even fall off with the extension of use time, Copper wire exposed at this time is easy to receive the influence of other wire magnetic fields, to influence the safety and stability of entire transformer；

2, conducting wire is set on iron core-closed in a manner of coiling, when needing to realize the operation in series or in parallel of coil, Need to find accurate end to be connected with the output end of coil or input terminal again, when the coiling state of conducting wire occur it is chaotic, Not only coil can have an impact each other, but also bring puzzlement to tuner；

3, when by conducting wire around the coupling part for being made as two coils, when conducting wire any portion be broken, then need by Entire wire replacing, which results in the unnecessary wastes of conducting wire.

Utility model content

The utility model provides a kind of voltage conversion device of Double-voltage transformer, can be improved Double-voltage transformer Operation performance.

The technical solution adopted in the utility model is:

A kind of voltage conversion device of Double-voltage transformer, including iron core-closed, high-tension coil, low-voltage coil and hard turn Part is changed, the high-tension coil and the low-voltage coil are around in the iron core-closed opposite sides respectively；The high-tension coil packet First coil and the second coil are included, the first coil and second coil are respectively arranged on described iron core-closed positioned at the same side Opposite end；The first coil is equipped with first input end and the first output end, the first input end and described first defeated Outlet is respectively arranged on the opposite end of the first coil；Second coil is equipped with the second input terminal and second output terminal, institute It states the second input terminal and the second output terminal is respectively arranged on the opposite end of second coil；The first coil with it is described Second coil is connected by the hard bridgeware, and the hard bridgeware includes two conducting ends.

Preferably, the hard bridgeware is copper and copper bar in a row-shaped.

Preferably, the copper bar includes inserting solid item, protecting crust and electrical piece, described one end for inserting solid item and the protecting crust Connection, the other end and the iron core-closed connection；The electrical piece wears the opposite end of the protecting crust and the electrical piece Positioned at the outside of the protecting crust.

Preferably, the hard bridgeware is the copper pipe that both ends are equipped with copper sheathing.

Preferably, the copper pipe includes concave copper bar, item and fixed strip in pipe, and the concave copper bar is hollow；It is described recessed The opposite end of type copper bar is respectively equipped with the copper sheathing, item and the fixed strip in the pipe；The copper sheathing is embedded at described recessed The tip inside of type copper bar；Item is set to inside the concave copper bar in the pipe, and one end of item is fixedly connected described in the pipe The inside of concave copper bar, the other end are fixedly connected with the fixed strip；The direction of item extends in the super separate pipe of fixed strip.

Preferably, the concave copper bar includes two connection transverse parts and a connection vertical part, two connection transverse parts point The opposite end of the connection vertical part is not connected.

Preferably, the first coil and the second coil are all made of 10kV grades.

The beneficial effects of the utility model embody a concentrated reflection of:

1) in the present invention, the first coil of the high-tension coil and the second coil pass through two of hard bridgeware Conducting end is connected, and hard bridgeware is using the flexible wire connection being different from the prior art, two conductions of hard bridgeware End is, it is apparent that can be in the connection for carrying out facilitating its port when parallel connection and serial connection operation to first coil and the second coil, no Can only speed operations speed, additionally it is possible to avoid giving transformer work bring adverse effect due to outer layer aging.

2) in the present invention, hard bridgeware uses copper and copper bar in a row-shaped, and the electrical path of copper bar is short, energy The transmission for enough accelerating electric current, to improve the working efficiency of transformer.

3) in the present invention, the opposite end of electrical piece forms conducting end, and the outside of electrical piece is equipped with protecting crust, The protecting crust can protect the inside of electrical piece not by external damage, avoid and cause because of the fracture of electrical piece interlude The case where entire electrical piece is scrapped.

4) in the present invention, concave copper bar is connected by two connection transverse parts and a connection vertical part and is formed a concave, Copper pipe can be avoided to touch coil when connecting to first coil with the second coil.

Detailed description of the invention

Fig. 1 is a kind of structure of the first embodiment of the voltage conversion device of Double-voltage transformer of the utility model Schematic diagram；

Fig. 2 is the structural schematic diagram of copper bar shown in Fig. 1；

Fig. 3 is a kind of structure of second of embodiment of the voltage conversion device of Double-voltage transformer of the utility model Schematic diagram；

Fig. 4 is the structural schematic diagram of copper pipe shown in Fig. 2；

In figure: 1- is iron core-closed, 21- first coil, 211- first input end, the first output end of 212-, the second line of 22- Circle, the second input terminal of 221-, 222- second output terminal, 3- copper bar, 31- insert solid item, 32- protecting crust, 33- electrical piece, 4- copper pipe, 41- copper sheathing, 421- connection transverse part, 422- connection vertical part, 43- manage in item, 44- fixed strip, the first phase of 101-, the second phase of 102-, 103- third phase.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

It should be noted that it can be directly on another component when component is referred to as " being fixed on " another component Or there may also be components placed in the middle.When a component is considered as " connection " another component, it, which can be, is directly connected to To another component or it may be simultaneously present component placed in the middle.When a component is considered as " being set to " another component, it It can be and be set up directly on another component or may be simultaneously present component placed in the middle.Term as used herein is " vertical ", " horizontal ", "left", "right" and similar statement for illustrative purposes only.

Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes Any and all combinations of one or more related listed items.

Embodiment one:

As shown in Figure 1 to Figure 2, the utility model first embodiment provides a kind of voltage converting means of Double-voltage transformer It sets.Iron core-closed 1, high-tension coil, low-voltage coil and hard bridgeware, high-tension coil are around in iron core-closed respectively with low-voltage coil 1 opposite sides；High-tension coil includes first coil 21 and the second coil 22, and first coil 21 and the second coil 22 are all made of 10kV grades, first coil 21 and the second coil 22 are respectively arranged on iron core-closed 1 opposite end for being located at the same side；First coil 21 Equipped with first input end 211 and the first output end 212, first input end 211 and the first output end 212 are respectively arranged on first coil 21 opposite end；Second coil 22 is equipped with the second input terminal 221 and second output terminal 222, and the second input terminal 221 and second is defeated Outlet 222 is respectively arranged on the opposite end of the second coil 22；First coil 21 is connected with the second coil 22 by hard bridgeware It connects, hard bridgeware includes two conducting ends.The first coil 21 of high-tension coil and the second coil 22 pass through hard bridgeware Two conducting ends are connected, and hard bridgeware is connected using the flexible wire being different from the prior art, and two of hard bridgeware Conducting end is, it is apparent that can facilitate its port when carrying out parallel connection and serial connection operation to first coil 21 and the second coil 22 Connection, can not only speed operations speed, additionally it is possible to bring due to outer layer aging be avoided to adversely affect.

First input end 211, the first output end 212, the second input terminal 221 and second output terminal 222 are the prior art Binding post, therefore not to repeat here.

In the present embodiment, hard bridgeware uses copper and copper bar 3 in a row-shaped, and the electrical path of copper bar 3 is short, energy The transmission for enough accelerating electric current, to improve the working efficiency of transformer.

In the present embodiment, copper bar 3 includes inserting solid item 31, protecting crust 32 and electrical piece 33, insert one end of solid item 31 with Protecting crust 32 connects, and the other end is connect with iron core-closed 1；Electrical piece 33 wears the opposite end position of protecting crust 32 and electrical piece 33 In the outside of protecting crust 32.The opposite end of electrical piece 33 forms conducting end, and the outside of electrical piece 33 is equipped with protecting crust 32, should Protecting crust 32 can protect the inside of electrical piece 33 not by external damage, avoid because the fracture of 33 interlude of electrical piece and The case where causing entire electrical piece 33 to scrap.

The voltage conversion device application method of Double-voltage transformer is as follows:

Double-voltage transformer include the first phase 101, the second phase 102 and third phase 103, the first phase 101, the second phase 102 and The voltage conversion device of Double-voltage transformer is equipped in third phase 103.When first coil 21 is in specified with the second coil 22 When tap, after the first output end 212 is connected with the second input terminal 221 by the opposite end of the electrical piece 33 of copper bar 3, the One input terminal 211 is coupled with the both ends of power supply with second output terminal 222, then first coil 21 and the second coil 22 are realized at this time Series connection, then at this time the first phase 101, the second phase 102 and third phase 103 export be 20kV voltage.

When first input end 211 is connect with the first output end 212 by the opposite end of electrical piece 33, the second input terminal 221 are connect with second output terminal 222 by the opposite end of another electrical piece 33, then first coil 21 and the second coil 22 at this time Realize it is in parallel, then at this time the first phase 101, the second phase 102 and third phase 103 export be 10kV voltage.

Embodiment two:

As shown in Figure 3 to Figure 4, the utility model second embodiment provides a kind of voltage converting means of Double-voltage transformer It sets.Iron core-closed 1, high-tension coil, low-voltage coil and hard bridgeware, high-tension coil are around in iron core-closed respectively with low-voltage coil 1 opposite sides；High-tension coil includes first coil 21 and the second coil 22, and first coil 21 and the second coil 22 are all made of 10kV grades, first coil 21 and the second coil 22 are respectively arranged on iron core-closed 1 opposite end for being located at the same side；First coil 21 Equipped with first input end 211 and the first output end 212, first input end 211 and the first output end 212 are respectively arranged on first coil 21 opposite end；Second coil 22 is equipped with the second input terminal 221 and second output terminal 222, and the second input terminal 221 and second is defeated Outlet 222 is respectively arranged on the opposite end of the second coil 22；First coil 21 is connected with the second coil 22 by hard bridgeware It connects, hard bridgeware includes two conducting ends.The first coil 21 of high-tension coil and the second coil 22 pass through hard bridgeware Two conducting ends are connected, and hard bridgeware is connected using the flexible wire being different from the prior art, and two of hard bridgeware Conducting end is, it is apparent that can facilitate its port when carrying out parallel connection and serial connection operation to first coil 21 and the second coil 22 Connection, can not only speed operations speed, additionally it is possible to bring due to outer layer aging be avoided to adversely affect.

First input end 211, the first output end 212, the second input terminal 221 and second output terminal 222 are the prior art Binding post, therefore not to repeat here.

In the present embodiment, hard bridgeware is the copper pipe 4 that both ends are equipped with copper sheathing 41.Copper pipe 4 includes concave copper bar, pipe Interior item 43 and fixed strip 44, concave copper bar are hollow；The opposite end of concave copper bar is respectively equipped with copper sheathing 41, manages interior item 43 and consolidate Determine item 44；Copper sheathing 41 is embedded at the tip inside of concave copper bar；Item 43 is set to inside concave copper bar in managing, and manages one end of interior item 43 It is fixedly connected with the inside of concave copper bar, the other end is fixedly connected with fixed strip 44；Fixed strip 44 prolong by the super separate direction for managing interior item 43 It stretches.Concave copper bar can be fixed on iron core-closed 1 by fixed strip 44, and concave copper bar can be preferably socketed on by copper sheathing 41 On binding post, guarantees that coil is inseparable with the connection of copper pipe 4, guarantee the stability of transformer.

In the present embodiment, concave copper bar includes two connection transverse parts 421 and a connection vertical part 422, two connections Transverse part 421 is separately connected the opposite end of connection vertical part 422.Copper sheathing 41 manages interior item 43 and fixed strip 44 set on each connection cross End of the portion 421 far from connection vertical part 422.Concave copper bar is formed by two connection transverse parts 421 and connection vertical part 422 connection One concave can avoid copper pipe 4 from touching coil when connecting to first coil 21 with the second coil 22.

The voltage conversion device application method of Double-voltage transformer is as follows:

Double-voltage transformer include the first phase 101, the second phase 102 and third phase 103, the first phase 101, the second phase 102 and The voltage conversion device of Double-voltage transformer is equipped in third phase 103.When first coil 21 is in specified with the second coil 22 When tap, after the first output end 212 is connected with the second input terminal 221 by the copper sheathing 41 of 4 opposite end of copper pipe, first is defeated Enter the both ends that end 211 is coupled with power supply with second output terminal 222, then first coil 21 and the second coil 22 realize string at this time Connection, then at this time the first phase 101, the second phase 102 and third phase 103 export be 20kV voltage.

When first input end 211 is connect with the first output end 212 by the copper sheathing 41 of 4 opposite end of copper pipe, second is inputted End 221 is connect with second output terminal 222 by the copper sheathings 41 of another 4 opposite end of copper pipe, then first coil 21 and second at this time Coil 22 realizes parallel connection, then at this time the first phase 101, the second phase 102 and third phase 103 export be 10kV voltage.

The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in Other related technical areas are also included in the patent protection scope of the utility model.

Claims (7)

1. a kind of voltage conversion device of Double-voltage transformer, it is characterised in that: including iron core-closed (1), high-tension coil, low pressure Coil and hard bridgeware, the high-tension coil and the low-voltage coil are around in the opposite sides of iron core-closed (1) respectively； The high-tension coil includes first coil (21) and the second coil (22), the first coil (21) and second coil (22) It is respectively arranged on the opposite end that described iron core-closed (1) is located at the same side；The first coil (21) is equipped with first input end (211) and the first output end (212), the first input end (211) and first output end (212) are respectively arranged on described The opposite end of one coil (21)；Second coil (22) is equipped with the second input terminal (221) and second output terminal (222), institute It states the second input terminal (221) and the second output terminal (222) is respectively arranged on the opposite end of second coil (22)；It is described First coil (21) is connected with second coil (22) by the hard bridgeware, and the hard bridgeware includes two Conducting end.

2. a kind of voltage conversion device of Double-voltage transformer according to claim 1, it is characterised in that: the hard turns It changes part and is copper and copper bar (3) in a row-shaped.

3. a kind of voltage conversion device of Double-voltage transformer according to claim 2, it is characterised in that: the copper bar It (3) include inserting solid item (31), protecting crust (32) and electrical piece (33), described one end and the protecting crust (32) for inserting solid item (31) Connection, the other end are connect with iron core-closed (1)；The electrical piece (33) wears the protecting crust (32) and the electrical piece (33) opposite end is located at the outside of the protecting crust (32).

4. a kind of voltage conversion device of Double-voltage transformer according to claim 1, it is characterised in that: the hard turns Changing part is the copper pipe (4) that both ends are equipped with copper sheathing (41).

5. a kind of voltage conversion device of Double-voltage transformer according to claim 4, it is characterised in that: the copper pipe It (4) include concave copper bar, item (43) and fixed strip (44) in pipe, the concave copper bar is hollow；The concave copper bar it is opposite Both ends are respectively equipped with the copper sheathing (41), item (43) and the fixed strip (44) in the pipe；The copper sheathing (41) is embedded at institute State the tip inside of concave copper bar；Item (43) is set to inside the concave copper bar in the pipe, one end of item (43) in the pipe It is fixedly connected with the inside of the concave copper bar, the other end is fixedly connected with the fixed strip (44)；The fixed strip (44) is super separate The direction of item (43) extends in the pipe.

6. a kind of voltage conversion device of Double-voltage transformer according to claim 5, it is characterised in that: the concave copper Item includes two connection transverse parts (421) and a connection vertical part (422), and two connection transverse parts (421) are separately connected described Connect the opposite end of vertical part (422).

7. a kind of voltage conversion device of Double-voltage transformer according to claim 1, it is characterised in that: the First Line Circle (21) and the second coil (22) are all made of 10kV grades.