CN203882763U - Input and output reactor for medium voltage power electronic device - Google Patents
Input and output reactor for medium voltage power electronic device Download PDFInfo
- Publication number
- CN203882763U CN203882763U CN201420223851.8U CN201420223851U CN203882763U CN 203882763 U CN203882763 U CN 203882763U CN 201420223851 U CN201420223851 U CN 201420223851U CN 203882763 U CN203882763 U CN 203882763U
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- iron core
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Abstract
The utility model discloses an input and output reactor for a medium voltage power electronic device. The input and output reactor for the medium voltage power electronic device comprises an iron core (1), windings (2) and a winding framework (3), wherein the iron core comprises at least two parallel iron core columns (7), the windings are wound on the winding framework, and the iron core column is sleeved with the winding framework. The reactor further comprises an insulating plate (4) and connecting rows (5), the connecting rows are installed on the side portions of the two ends of the insulating plate, the insulating plate penetrates through the iron core and is located between the two windings, each winding is arranged on the iron core column in a sleeved mode, the connecting rows are connected with outgoing wires of the windings, and bolts and nuts (6) which holes pass through are further formed in the connecting rows and used for being connected with an external bus. The iron core is made of iron silicon aluminum powder or ferrite material. The iron core column is sintered into a rectangular cube through a ceramic technology, and a plurality of rectangular cubes adhere to form the closed TT-shaped or E-shaped iron core. The reactor can be directly installed on a medium voltage bus, no grounding points exist in work, and the size of the reactor can be greatly reduced.
Description
Technical field
The utility model relates to a kind of for the input and output reactor in the electronic power conversion device of pressure.
Background technology
The input reactance device of medium voltage electricity electronics convertor assembly (as middle pressure soft starter or medium voltage frequency converter) adopts three single-phase reactors or a three-phase reactor at present, and middle pressure is generally 10KV, and this single-phase reactor or three-phase reactor remain traditional structure.The version of single-phase reactor as depicted in figs. 1 and 2, its iron core 24 is the degree of lip-rounding, adopt cold rolling or hot rolled silicon steel sheet closed assembly to form, degree of lip-rounding vertical direction is two posts, on every post, be set with winding 23, between winding 23 and iron core 24, to there is good insulation, so that the withstand voltage test can the standard of bearing specifying, winding 23 two ends lead-in wires are outwards drawn through the insulating terminal 22 being installed on the support 21 of being made up of angle steel on iron core top, and the base 25 that make via channel-section steel iron core 24 bottoms is fixedly installed on ground or cabinet.The structure of three-phase reactor is similar to single-phase reactor, and just iron core 24 is three posts at vertical direction, is set with winding 23 on every post.
The shortcoming of existing single-phase reactor or three-phase reactor structure is: first, for example, because winding coil will be connected on middle pressure (10KV) circuit, so the exit of winding is to be arranged on iron core bracket by insulating terminal (high-tension insulator), and reactor will be arranged on the cabinet of equipment, so its iron core is wanted ground connection.According to national standard or international electrical engineering standard (ISO), the withstand voltage test that this reactor will bear is: the reactor that is 10KV for operating voltage, rated short duration power-frequency withstand voltage (effective value) is 28KV, its rated lightning impulse withstand voltage (peak value) phase-alternate is 75KV, is 60KV between phase-ground.In order to solve problem of withstand voltage, its structure must be larger.The second, owing to will solving problem of withstand voltage, winding itself is necessary reinforced insulation also, to can bear the withstand voltage test of regulation, thereby makes winding manufacturing process more complicated and has increased volume.The 3rd, iron core is formed by silicon steel sheet cutting closed assembly, assembles cumbersome; And iron core must be fixedly clamped with support (as angle steel), both increase volume weight, the ferromagnetic loss while having increased again operation.
Summary of the invention
The purpose of this utility model is to provide a kind of medium voltage electricity electronic equipment input and output reactor, and this reactor can be directly installed on middle pressure bus, there is no earth point when work, can greatly dwindle reactor volume.
In order to realize above-mentioned technical purpose, the utility model adopts following technical scheme:
A kind of medium voltage electricity electronic equipment input and output reactor, comprises iron core, winding, winding skeleton, and iron core comprises at least two parallel iron core column, and winding technique is on winding skeleton, and winding skeleton is sleeved in iron core column; Described reactor also comprises insulation board, connects row, the limit portion at insulation board two ends is provided with and connects row, insulation board is through iron core, and insulation board is between two windings, each winding is sleeved in iron core column, connect row and connect winding leading-out wire, connect on row and also have hole for connecting outside bus.
Described iron core is made up of iron aluminum silicon powder or magnetic ferrites material.
Described iron core column adopts ceramic process sintering and orthogonal cube, and iron core comprises that multiple rectangle cubes are bonded to π shape or the E shape of sealing.
Described silicon-steel sheet used for iron core closed assembly forms, and iron core column is π shape or E shape.
Described iron core and winding are sealed in epoxy resin.
Reactor of the present utility model for example can be directly installed on, on middle pressure (10KV) bus, there is no earth point when work, does not therefore have iron core grounding problem, thereby can greatly dwindle reactor volume; And iron core column (magnetic core) adopts ceramic process to bond after sintering bulk into again, and winding is easy for installation, iron core column (magnetic core) has the good and low cost and other advantages of soft saturated, lower core loss, temperature stability.After the assembling of whole reactor except connecting copper bar all with poured with epoxy resin, compact conformation.
Brief description of the drawings
Fig. 1 is existing middle pressure single-phase reactor structural representation;
Fig. 2 is existing middle pressure single-phase reactor schematic side view;
Fig. 3 is middle pressure single-phase reactor schematic top plan view of the present utility model;
Fig. 4 be in Fig. 3 A-A to profile;
Fig. 5 is that schematic diagram is looked on a middle pressure single-phase reactor of the present utility model left side.
In figure: 1 iron core, 2 windings, 3 winding skeletons, 4 insulation boards, 5 connect copper bar, 6 connecting bolt nuts, 7 iron core column; 21 supports, 22 insulating terminals, 23 windings, 24 iron cores, 25 bases.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Referring to Fig. 3 to Fig. 5, a kind of medium voltage electricity electronic equipment input and output reactor, comprise iron core 1, winding 2, winding skeleton 3, insulation board 4 and be connected row 5, iron core 1 comprises at least two parallel iron core column 7, winding 2 adopts (flat) copper cash and insulating material to be wound on winding skeleton 3, and winding skeleton 3 is sleeved in iron core column 7; The limit portion at insulation board 4 two ends is provided with and connects row 5, insulation board 4 is through iron core 1, and insulation board 4 is between two windings 2, and each winding 2 is sleeved in iron core column 7, connect row 5 and connect winding 2 lead-out wires, connect on row 5 and also have hole for connecting outside bus.
Described iron core 1 is made up of iron powder, iron powder comprises iron aluminum silicon powder, ferro-silicium or magnetic ferrites material, iron core column 7 by iron aluminum silicon powder or magnetic ferrites material through ceramic process sintering and orthogonal cube, adopt binding agent that rectangle cube is bonded to π shape or E shape, therefore iron core 1 can form the π shape (or being called the degree of lip-rounding) of sealing or the form of E shape.The winding 2 of this reactor can first be carried out and overlap and pack into after iron core column 7, then the iron core column 7 complete reactor of complete formation that bonds, easy for installation.Iron core column 7 is the magnetic core of iron core 1 after magnetizing, and iron core column 7 has the good and low cost and other advantages of soft saturated, lower core loss, temperature stability, and has exempted and fixing with angle steel and bolt.
Described iron core 1 also can form with silicon steel sheet closed assembly, iron core column 7 is π shape or E shape, the winding 2 of this reactor can first be carried out and overlap and pack into after iron core column 7, then forms π shape or the E shape of sealing after fixing iron core column 7 plug-in mountings and with angle steel and bolt, thereby forms a complete reactor.
What iron core 1 was sealing π shape (or being called the degree of lip-rounding) is single-phase reactor, and Fig. 3 is to Figure 5 shows that single-phase reactor.Middle pressure three-phase reactor can be made up of three of a same structure single-phase reactor.
Insulation board 4, for supporting whole reactor, connects row 5 for connecting copper bar, reactor for example can be connected on, on middle pressure (10KV) bus by connecting copper bar.Connect row and also have hole on 5, connecting bolt nut 6 is for winding 2 lead-out wires being connected to insulation board 4 and being connected copper bar 5, and is connected to reactor connection copper bar 5 for a pressure bus for outside.
Reactor of the present utility model for example can be directly installed on, on middle pressure (10KV) bus, when work, there is no earth point, so can consider the insulation between iron core column (magnetic core) and winding according to winding two ends normal working voltage, thereby greatly dwindle reactor volume.Whole reactor is wrapped up with insulating tape after assembling, whole poured with epoxy resin except the copper bar for outside connection, compact conformation.
These are only preferred embodiment of the present utility model; be not intended to limit protection range of the present utility model; therefore, all any amendments of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model within spirit of the present utility model and principle.
Claims (5)
1. a medium voltage electricity electronic equipment input and output reactor, comprise iron core (1), winding (2), winding skeleton (3), iron core (1) comprises at least two parallel iron core column (7), it is upper that winding (2) is wound on winding skeleton (3), and winding skeleton (3) is sleeved in iron core column (7); It is characterized in that:
Described reactor also comprises insulation board (4), connects row (5), the limit portion at insulation board (4) two ends is provided with and connects row (5), insulation board (4) is through iron core (1), and insulation board (4) is positioned between two windings (2), each winding (2) is sleeved in iron core column (7), connect row (5) and connect winding (2) lead-out wire, connect on row (5) and also have hole for connecting outside bus.
2. medium voltage electricity electronic equipment input and output reactor according to claim 1, is characterized in that: described iron core (1) is made up of iron aluminum silicon powder or magnetic ferrites material.
3. medium voltage electricity electronic equipment input and output reactor according to claim 2, it is characterized in that: described iron core column (7) adopts ceramic process sintering and orthogonal cube, and iron core (1) comprises that multiple rectangle cubes are bonded to π shape or the E shape of sealing.
4. medium voltage electricity electronic equipment input and output reactor according to claim 1, is characterized in that: described iron core (1) forms with silicon steel sheet closed assembly, iron core column (7) is π shape or E shape.
5. according to the medium voltage electricity electronic equipment input and output reactor described in claim 3 or 4, it is characterized in that: described iron core (1) and winding (2) are sealed in epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420223851.8U CN203882763U (en) | 2014-02-25 | 2014-05-05 | Input and output reactor for medium voltage power electronic device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420079647.3 | 2014-02-25 | ||
| CN201420079647 | 2014-02-25 | ||
| CN201420223851.8U CN203882763U (en) | 2014-02-25 | 2014-05-05 | Input and output reactor for medium voltage power electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203882763U true CN203882763U (en) | 2014-10-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420223851.8U Withdrawn - After Issue CN203882763U (en) | 2014-02-25 | 2014-05-05 | Input and output reactor for medium voltage power electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203882763U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124037A (en) * | 2014-02-25 | 2014-10-29 | 厉无咎 | IO electric reactor for medium-voltage power electronic equipment |
-
2014
- 2014-05-05 CN CN201420223851.8U patent/CN203882763U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124037A (en) * | 2014-02-25 | 2014-10-29 | 厉无咎 | IO electric reactor for medium-voltage power electronic equipment |
| CN104124037B (en) * | 2014-02-25 | 2016-05-25 | 厉无咎 | Medium voltage electricity electronic equipment input and output reactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141015 Effective date of abandoning: 20160525 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |