CN102611361A - Thyristor group unit serial and parallel connection structure piece applied to motor soft starter - Google Patents
Thyristor group unit serial and parallel connection structure piece applied to motor soft starter Download PDFInfo
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- CN102611361A CN102611361A CN2011103536835A CN201110353683A CN102611361A CN 102611361 A CN102611361 A CN 102611361A CN 2011103536835 A CN2011103536835 A CN 2011103536835A CN 201110353683 A CN201110353683 A CN 201110353683A CN 102611361 A CN102611361 A CN 102611361A
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Abstract
The invention provides a thyristor group unit serial and parallel connection structure piece applied to a motor soft starter. The thyristor group unit serial and parallel connection structure piece comprises an element module, a triggering module, a copper bar and an insulating structure piece. The element module comprises a thyristor group and a resistance-capacitance absorbing circuit; the thyristor group comprises a thyristor and a heat radiator; the thyristor is formed by connecting two thyristors with inverse polarities in parallel; the heat radiator is formed by a large heat radiator and two small heat radiators; the large heat radiator is used as a pole of the element module and is a common mounting plane of the two thyristors which are connected in an inverse parallel manner; the two thyristors are respectively pressed on the large heat radiator by the two thyristors; and meanwhile, one thyristor is pressed once. The resistance-capacitance absorbing circuit consists of a resistor, a capacitor, a resistor bracket and a capacitor bracket. The triggering module comprises a triggering circuit board, a triggering power supply board, a triggering board mounting board, an insulating rod and an insulating supporting board. The thyristor group unit serial and parallel connection structure piece disclosed by the invention has the advantages of compact and reasonable structure, convenience for wiring and convenience for maintenance.
Description
Technical field
The invention belongs to Motor Control Field, particularly a kind of thyristor groups unit strings parallel-connection structure spare that is applied to motor soft starter.
Background technology
Along with China's economy increases fast, increasing to the demand of electric energy, how effectively to utilize network load to become one of priority fields of study.Motor is many, the high-power loads of a kind of quantity as important driving execution mechanism, when supplying the distribution design, needs separate analysis.And motor is in starting process; Starting current is generally 4～8 times of rated current; Therefore must increase the confession distribution design capacity of electrical network greatly, otherwise will cause electric network electric voltage drop, might cause the protective relaying device misoperation of electrical network; Cause the large-area power-cuts fault, also might influence the operate as normal of other loads in the electrical network; Simultaneously, excessive starting current can produce huge transient starting moment, and motor and motor-driven plant equipment are impacted, and possibly reduce equipment life greatly, and cause equipment moment damage.
Therefore, this huge industry of motor soft starter China quietly emerge.Application industry also is dispersed throughout weaving, metallurgy, petrochemical industry, water treatment, boats and ships, transportation, medicine, food processing, mining and plant equipment etc.
The thyristor that uses in the high pressure soft starter just needs rational connection in series-parallel, and the series parallel structure form has very big influence for properties of product, quality.It is very important how designing the series-parallel structure of using in the rationally compact high pressure soft starter of thyristor.
Summary of the invention
The object of the present invention is to provide a kind of thyristor groups unit strings parallel-connection structure spare that is applied to motor soft starter, it have compact conformation rationally, good heat dissipation effect, the characteristics being convenient to keep in repair.
Technical scheme of the present invention is:
A kind of thyristor groups unit strings parallel-connection structure spare that is applied to motor soft starter, it comprises: component module, trigger module, copper bar, insulation system spare.
Wherein, described component module, the core for motor soft starter comprises: thyristor groups and resistance capaciting absorpting circuit.
Described thyristor groups comprises: thyristor and radiator.Specifically be that described thyristor is made up of two thyristors and the inverse parallel of polarity phase;
Described radiator is made up of the big radiator of a slice and two little radiators; Big radiator is two mounting planes that anti-parallel thyristor is common as a utmost point of component module, respectively two thyristors are fitted on the big radiator with two little radiators again, it avoided because of the press-fiting of causing of thyristor difference in thickness inhomogeneous; Simultaneously only press-fit a thyristor at every turn, make press-loading process simple, low to the requirement of strength of parts.
Described resistance capaciting absorpting circuit is made up of resistance, electric capacity, resistor cartridge and capacitance bracket.
Described trigger module is standalone module, and it comprises: circuits for triggering plate, triggering power panel, trigger board mounting panel, insulating bar and insulation support plate.Trigger module is responsible for the control to thyristor, and it and component module separate with the trigger board mounting panel, can independently assemble and field-strip; Circuits for triggering plate, triggering power panel all are arranged on the trigger board mounting panel, fix with insulated bolt.
Described copper bar comprises connecting copper bar and turnover line copper bar; According to the electric pressure of equipment, several component modules with connecting the copper bar series connection, are formed a phase power cell.
Described insulation system spare comprises: the fixed head insulation back plate of component module, power cell side panel, power cell upper cover plate; The power cell side panel is connected bolt with power cell upper cover plate and insulation back plate with support.
In the component module bottom twice slide rail is set, makes dismounting more convenient.
Every phase power cell has only one road optical fiber, transmits the required triggering signal of positive and negative parallel connection and series thyristor simultaneously; Each single-phase power unit is Open architecture, ventilates up and down, is convenient to heat radiation, effectively prevents dust.
Trigger module is with the circuits for triggering plate and trigger power panel is fixed on the trigger board mounting panel with insulated bolt; Isolate with the insulation support plate; Pass the instrument transformer of induction power supply line from the circuits for triggering plate, on two insulation support plates, erect insulating bar and fix; The tapping that optical fiber insulate on the support plate is from the side drawn; The power cell upper cover plate is fixed on the insulation support plate with insulated bolt.
The invention has the advantages that:
Because the present invention can be provided with the twice slide rail with the resistance capaciting absorpting circuit component module of packing in the component module bottom, make dismounting more convenient; Trigger module is a standalone module, separates with insulation board with component module, can independently assemble and field-strip; Open architecture ventilates up and down, is convenient to heat radiation, effectively prevents dust; Unique turnover line copper bar design, easy-to-connect; Compact conformation of the present invention rationally, be convenient to maintenance.
Description of drawings
Fig. 1 is a system block diagram of the present invention;
Fig. 2-1 is the front view of structural plan figure of the present invention;
Fig. 2-2 is a structural plan of the present invention figure vertical view;
Fig. 3 is a three-dimensional structure diagram of the present invention;
Fig. 4-1 is the front view of component module structural representation of the present invention;
Fig. 4-2 is the end view of component module structural representation of the present invention;
Fig. 4-3 is the vertical view of component module structural representation of the present invention;
Fig. 4-4 is the axonometric drawing of component module structural representation of the present invention.
Label is among the figure:
The 1-component module; The 11-thyristor groups; The 111-thyristor;
The 112-radiator; 112 '-little radiator; 112 " big radiator;
The 12-resistance capaciting absorpting circuit; 121-resistance; 122-electric capacity; The 123-resistor cartridge; The 124-capacitance bracket;
The 13-grading resistor; 14-grading resistor support;
The 2-trigger module; 21-circuits for triggering plate; 22-triggers power panel; 23-trigger board mounting panel; The 24-insulating bar; The 25-support plate that insulate;
The 3-copper bar; 31-connects copper bar; 32-turnover line copper bar;
4-insulation system spare; 41-insulation back plate; 42-power cell side panel; 43-power cell upper cover plate;
The 5-angle bar; The 6-support.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described further.
Shown in Fig. 1 to Fig. 4-4, the present invention is applied to the thyristor groups unit strings parallel-connection structure spare of motor soft starter, and it comprises: component module 1, trigger module 2, copper bar 3, insulation system spare 4.
Described component module 1, the core for motor soft starter comprises: thyristor groups 11 and resistance capaciting absorpting circuit 12, wherein, described thyristor groups 11 comprises: thyristor 111 and radiator 112.
Specifically be that described thyristor 111 is in parallel installed with on the contrary by two thyristors 111 and polarity and constitutes;
" and two little radiator 112 ' formations that described radiator 112 is by the big radiator 112 of a slice; On the big radiator 112 " as a utmost point of component module 1; be the common mounting planes of two anti-parallel thyristors 111; again with two little radiators 112 ' respectively two thyristors 111 are fitted in big radiator 112 ", it avoided because of the press-fiting of causing of thyristor difference in thickness inhomogeneous; Simultaneously only press-fit a thyristor at every turn, make press-loading process simple, low to the requirement of strength of parts.
Described resistance capaciting absorpting circuit 12 is made up of resistance 121, electric capacity 122, resistor cartridge 123 and capacitance bracket 124.
Described trigger module 2, it comprises: circuits for triggering plate 21, triggering power panel 22, trigger board mounting panel 23, insulating bar 24 and insulation support plate 25.The control that trigger module 2 is responsible for thyristor 111 is standalone module, and it and component module 1 usefulness trigger board mounting panel 23 separate, and can independently assemble and field-strip; Circuits for triggering plate 21, triggering power panel 22 all are installed on the trigger board mounting panel 23, fix with insulated bolt.
Described copper bar 3 comprises connecting copper bar 31 and turnover line copper bar 32.According to the electric pressure of equipment, several component module 1 usefulness are connected copper bar 31 series connection, form a phase power cell.
Described insulation system spare 4 comprises: the fixed head insulation back plate 41 of component module 1, power cell side panel 42, power cell upper cover plate 43.Power cell side panel 42 is connected bolt with power cell upper cover plate 43 and insulation back plate 41 usefulness supports 6.
Like Fig. 2-1, Fig. 2-2, shown in Figure 3, insulation back plate 41 is the mounting panel of whole power cell; Three component modules 1 are sequence arrangement from left to right; Four angle bar of each component module 1 usefulness 5 fix with it; Being electrically connected with connecting copper bar 31 between three component modules 1 realizes; Be installed into outlet copper bar 32 on the left and right sides component module 1 outermost radiator, direction backwards, and is fixing above the plate 41 after insulation; Power cell side panel 42 is connected with insulation back plate 41 with support 6, and its opposite is connected with trigger module 2 with support 6.
Wherein, component module 1 is with the big radiator 112 of a slice " two thyristors 111 of and two little radiators 112 ' press-fit; It installs grading resistor 13 with grading resistor support 14 at the back; Its front is with resistor cartridge 123 and capacitance bracket 124 fixed resistances 121 and electric capacity 122;
Claims (10)
1. thyristor groups unit strings parallel-connection structure spare that is applied to motor soft starter, it is characterized in that: it comprises: component module, trigger module, copper bar, insulation system spare; Wherein, described component module comprises: thyristor groups and resistance capaciting absorpting circuit; Described thyristor groups comprises: thyristor and radiator.
2. thyristor groups unit strings parallel-connection structure spare according to claim 1 is characterized in that: described thyristor is made up of two thyristors and the inverse parallel of polarity phase.
3. thyristor groups unit strings parallel-connection structure spare according to claim 1 is characterized in that: described radiator is made up of the big radiator of a slice and two little radiators; Big radiator is two mounting planes that anti-parallel thyristor is common as a utmost point of component module, respectively two thyristors is fitted on the big radiator with two little radiators again; Only press-fit simultaneously a thyristor at every turn.
4. thyristor groups unit strings parallel-connection structure spare according to claim 1 is characterized in that: described resistance capaciting absorpting circuit, form by resistance, electric capacity, resistor cartridge and capacitance bracket.
5. thyristor groups unit strings parallel-connection structure spare according to claim 1 is characterized in that: described trigger module, and it comprises: circuits for triggering plate, triggering power panel, trigger board mounting panel, insulating bar and insulation support plate; Trigger module is responsible for the control to thyristor, is standalone module, and it and component module separate with the trigger board mounting panel, can independently assemble and field-strip; Circuits for triggering plate, triggering power panel all are arranged on the trigger board mounting panel, fix with insulated bolt.
6. thyristor groups unit strings parallel-connection structure spare according to claim 1 is characterized in that: described copper bar comprises connecting copper bar and turnover line copper bar; According to the electric pressure of equipment, several component modules with connecting the copper bar series connection, are formed a phase power cell.
7. thyristor groups unit strings parallel-connection structure spare according to claim 1, it is characterized in that: described insulation system spare comprises: the fixed head insulation back plate of component module, power cell side panel, power cell upper cover plate; The power cell side panel is connected bolt with power cell upper cover plate and insulation back plate with support.
8. thyristor groups unit strings parallel-connection structure spare according to claim 1 is characterized in that: every phase power cell has only one road optical fiber, transmits the required triggering signal of positive and negative parallel connection and series thyristor simultaneously; Each single-phase power unit is Open architecture.
9. thyristor groups unit strings parallel-connection structure spare according to claim 1 is characterized in that: in described component module bottom the twice slide rail is set.
10. thyristor groups unit strings parallel-connection structure spare according to claim 1 is characterized in that: described trigger module is with the circuits for triggering plate and trigger power panel is fixed on the trigger board mounting panel with insulated bolt; Isolate with the insulation support plate; Pass the instrument transformer of induction power supply line from the circuits for triggering plate, on two insulation support plates, erect insulating bar and fix; The tapping that optical fiber insulate on the support plate is from the side drawn; The power cell upper cover plate is fixed on the insulation support plate with insulated bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110353683.5A CN102611361B (en) | 2011-11-10 | 2011-11-10 | Thyristor group unit serial and parallel connection structure piece applied to motor soft starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110353683.5A CN102611361B (en) | 2011-11-10 | 2011-11-10 | Thyristor group unit serial and parallel connection structure piece applied to motor soft starter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102611361A true CN102611361A (en) | 2012-07-25 |
| CN102611361B CN102611361B (en) | 2015-07-15 |
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| CN201110353683.5A Active CN102611361B (en) | 2011-11-10 | 2011-11-10 | Thyristor group unit serial and parallel connection structure piece applied to motor soft starter |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1901326A1 (en) * | 2006-09-15 | 2008-03-19 | Siemens Aktiengesellschaft | Motor starter |
| CN101510771A (en) * | 2008-12-15 | 2009-08-19 | 北京索控欣博通电气有限公司 | Trigger equipment of induction energy-taking type thyristor |
| CN101621269A (en) * | 2009-06-12 | 2010-01-06 | 保定市尤耐特电气有限公司 | Conveniently maintained mesohigh soft start cabinet |
| CN201478075U (en) * | 2009-04-24 | 2010-05-19 | 江苏上能变压器有限公司 | Serial-parallel connection device of duplex-winding double-fission three-phase transformer |
| CN201877834U (en) * | 2010-11-23 | 2011-06-22 | 株洲变流技术国家工程研究中心有限公司 | Thyristor valve block of static var compensator (SVC) |
| CN201893737U (en) * | 2010-11-23 | 2011-07-06 | 哈尔滨九洲电气股份有限公司 | Silicon controlled valve bank integral structure |
-
2011
- 2011-11-10 CN CN201110353683.5A patent/CN102611361B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1901326A1 (en) * | 2006-09-15 | 2008-03-19 | Siemens Aktiengesellschaft | Motor starter |
| CN101510771A (en) * | 2008-12-15 | 2009-08-19 | 北京索控欣博通电气有限公司 | Trigger equipment of induction energy-taking type thyristor |
| CN201478075U (en) * | 2009-04-24 | 2010-05-19 | 江苏上能变压器有限公司 | Serial-parallel connection device of duplex-winding double-fission three-phase transformer |
| CN101621269A (en) * | 2009-06-12 | 2010-01-06 | 保定市尤耐特电气有限公司 | Conveniently maintained mesohigh soft start cabinet |
| CN201877834U (en) * | 2010-11-23 | 2011-06-22 | 株洲变流技术国家工程研究中心有限公司 | Thyristor valve block of static var compensator (SVC) |
| CN201893737U (en) * | 2010-11-23 | 2011-07-06 | 哈尔滨九洲电气股份有限公司 | Silicon controlled valve bank integral structure |
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| Publication number | Publication date |
|---|---|
| CN102611361B (en) | 2015-07-15 |
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Address after: 102400 Beijing Fangshan District, Chengguan Street, Guba Road, Area 1, No. 9 Patentee after: ENGKE TECHNOLOGY CO., LTD. Address before: 102400 Beijing Fangshan District, Chengguan Street, Guba Road, Area 1, No. 9 Patentee before: Nancal Energy-Saving Technology Co., Ltd. |
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