CN105811787A - Fully-sealed current-conversion assembly - Google Patents
Fully-sealed current-conversion assembly Download PDFInfo
- Publication number
- CN105811787A CN105811787A CN201610335009.7A CN201610335009A CN105811787A CN 105811787 A CN105811787 A CN 105811787A CN 201610335009 A CN201610335009 A CN 201610335009A CN 105811787 A CN105811787 A CN 105811787A
- Authority
- CN
- China
- Prior art keywords
- current
- sealing shell
- hermetically sealed
- current assembly
- heat dissipation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/064—Hermetically-sealed casings sealed by potting, e.g. waterproof resin poured in a rigid casing
Abstract
The invention discloses a fully-sealed current-conversion assembly. The assembly comprises a sealed shell and a current-conversion circuit arranged in the sealed shell; the holes between the sealed shell and the current-conversion circuit are poured with a pouring sealant, wherein the current-conversion circuit comprises a radiating cold plate, multiple rectifying element input interface wires and output interface wires; multiple rectifying elements are uniformly arranged on the radiating cold plate and are connected to form a three-phase bridge type circuit; the input interface wires are connected with the input end of the three-phase bridge type circuit; at least one part of the input interface wires are positioned on the exterior of the sealed shell and are used for connecting a three-phase alternating current power supply; the output interface wires are connected with the output end of the three-phase bridge type circuit; and at least one part of the output interface wires are positioned on the exterior of the sealed shell and are used for connecting a direct current bus. According to the fully-sealed current-conversion assembly provided by the invention, the whole current-conversion circuit can be fully coated with the shell and the pouring sealant, so that the current-conversion circuit can be fully isolated from the outside so as to avoid influences from outside damp and dust and to realize the stable operation.
Description
Technical field
The application relates to electric and electronic technical field, more particularly, it relates to a kind of hermetically sealed change of current assembly.
Background technology
Change of current assembly is a kind of relatively conventional electric device, wherein includes multiple electrical equipment and for connecting connecting line or the copper bar of these elements, for providing rectification or inversion service for electrical equipments such as converter power transformer, converter, reactive-load compensators.Change of current assembly as a kind of basic device in use must assure that its working stability, otherwise the normal operation of converter power transformer, converter or reactive-load compensator can be brought fatal impact, and the steady operation of change of current assembly all can be produced strong influence by humidity and dust, especially because change of current assembly must be cooled down in the course of the work, the condensation that cooling produces is likely to cause in change of current assembly between electrical equipment and short circuit or open circuit fault occurs.
Summary of the invention
In view of this, the application provides a kind of hermetically sealed change of current assembly, is subject to the impact of humidity or dust and cause cannot the problem of steady operation solving existing change of current assembly.
To achieve these goals, it is proposed that scheme as follows:
A kind of hermetically sealed change of current assembly, including sealing shell be arranged on the converter circuit within described sealing shell, in the hole between described sealing shell and described converter circuit, embedding has embedding colloid, and wherein, described converter circuit includes:
Heat dissipation cold plate；
It is arranged on described heat dissipation cold plate and connects into multiple rectifier cells of three-phase bridge circuit；
The input interface line line being connected with the input of described three-phase bridge circuit, the outside remaining at least partially within described sealing shell of described input interface line, for connecting three-phase alternating-current supply；
The output interface line being connected with the outfan of described three-phase bridge circuit, the outside remaining at least partially within described sealing shell of described output interface line, for connecting dc bus.
Optionally, described sealing shell is sheet metal shell.
Optionally, described embedding colloid is the polyurethane composition solidified.
Optionally, described input interface line is copper bar line.
Optionally, described output interface line is stack bus bar line.
Optionally, described rectifier cell is diode element, thyristor or IGBT element.
Optionally, described heat dissipation cold plate is heat-dissipating aluminium plate or heat radiation copper coin.
Optionally, in described heat dissipation cold plate, it is provided with heat dissipation copper pipe, wherein:
The two ends of described heat dissipation copper pipe are arranged on the outside of described sealing shell, for connecting the coolant interface of cooling device.
Can be seen that from above-mentioned technical scheme, this application discloses a kind of totally-enclosed change of current assembly, this assembly includes sealing shell and is arranged on the converter circuit within sealing shell, in hole between sealing shell and converter circuit, embedding has embedding colloid, wherein, converter circuit includes heat dissipation cold plate, multiple rectifier cell input interface line and output interface line, and multiple rectifier cells are arranged on heat dissipation cold plate and connect into three-phase bridge circuit；Input interface line is connected with the input of three-phase bridge circuit, and it remains at least partially within the outside of sealing shell, is used for connecting three-phase alternating-current supply；Output interface line is connected with the outfan of three-phase bridge circuit, and it remains at least partially within the outside of described sealing shell, is used for connecting dc bus.Converter circuit entirety can be coated with by the totally-enclosed change of current assembly provided due to the application by shell and casting glue, makes converter circuit and the external world completely cut off completely such that it is able to avoids being subject to the humidity in the external world and the impact of dust and stably working.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the application, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The schematic perspective view of a kind of totally-enclosed change of current assembly that Fig. 1 provides for the embodiment of the present application；
The circuit diagram of the three-phase bridge circuit that Fig. 2 provides for the embodiment of the present application；
The sectional view of the totally-enclosed change of current assembly that Fig. 3 provides for the embodiment of the present application.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described embodiment is only some embodiments of the present application, rather than whole embodiments.Based on the embodiment in the application, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of the application protection.
The schematic perspective view of a kind of hermetically sealed change of current assembly that Fig. 1 provides for the embodiment of the present application.
As shown in Figure 1, the hermetically sealed change of current assembly that the present embodiment provides is applied to the electrical equipments such as converter power transformer, converter, reactive-load compensator, for providing rectification or inversion service for this electrical equipment, specifically include sealing shell 10 and the converter circuit being arranged in sealing shell, and in the space between sealing shell and converter circuit, be perfused with embedding colloid.
The effect of sealing shell 10 is the barrier providing ground floor for internal change of current electric current, and the most directly effect is used to embedding colloid and provides outer limit, facilitates potting operation.The preferred sheet metal shell of sealing shell 10.It is potted in the intrapore embedding colloid optimization polyurethane complex between sealing shell 10 and converter circuit, it is liquid under this complex room temperature, convenient perfusion in sealing shell, then after room temperature or heating, it is cured as thermosetting polymer composite, this complex is coated on around converter circuit, it is possible to make converter circuit and surrounding strictly insulate.
Being arranged on the converter circuit within sealing shell 10 and include heat dissipation cold plate 21 and the multiple rectifier cells 22 being arranged on this heat dissipation cold plate 21, multiple rectifier cells are connected to become three-phase bridge circuit, for three-phase alternating current carries out rectification, export DC voltage.Rectifier cell 22 is generally 6, and its circuit connection diagram can provide the heavy-duty diode element of rectification function, thyristor or IGBT element as in figure 2 it is shown, rectifier cell 22 can be selected, the preferred IGBT element of the present embodiment.
The rectifier cell 22 that on converter circuit, each two is directly connected constitutes a brachium pontis, and three brachium pontis parallel connections form complete three-phase bridge circuit.The input of three-phase bridge circuit is connected to input interface line 23, owing to being three-phase, correspondingly input interface line has three, input interface line is additionally operable to be connected the both positive and negative polarity of the rectifier cell on single brachium pontis, input interface line 13 stretches out this sealing shell 10 at least partially, for the connecting line as change of current assembly Yu power line, as shown in Figure 3.Owing to the operating current of converter circuit is generally large, it is thus preferred to the bigger copper bar line in cross section is as input interface line 23.
The outfan of three-phase bridge circuit is connected to output interface line 24, and a part 241 for output interface line 24 stretches out sealing shell 10, for the connectivity port as commutation components Yu dc bus.Also due to the operating current of output interface line 24 is relatively big, therefore select stack bus bar line as this output interface line.
Can be seen that from technique scheme, present embodiments provide a kind of totally-enclosed change of current assembly, this assembly includes sealing shell and is arranged on the converter circuit within sealing shell, in hole between sealing shell and converter circuit, embedding has embedding colloid, wherein, converter circuit includes heat dissipation cold plate, multiple rectifier cell input interface line and output interface line, and multiple rectifier cells are arranged on heat dissipation cold plate and connect into three-phase bridge circuit；Input interface line is connected with the input of three-phase bridge circuit, and it remains at least partially within the outside of sealing shell, is used for connecting three-phase alternating-current supply；Output interface line is connected with the outfan of three-phase bridge circuit, and it remains at least partially within the outside of described sealing shell, is used for connecting dc bus.Converter circuit entirety can be coated with by the totally-enclosed change of current assembly provided due to the application by shell and casting glue, makes converter circuit and the external world completely cut off completely such that it is able to stably works avoiding being subject to the impact of extraneous humidity and dust.
Additionally, owing to this totally-enclosed change of current assembly only to be retained outside sealing shell input connecting line and output connecting line, so that the wiring work of workmen is greatly simplified, same because this assembly forms a kind of modular electrical equipment, it is also possible to make electricity cabinet designer be easier to electricity cabinet is carried out Structured Design.
Heat dissipation cold plate 21 in the application can select heat-dissipating aluminium plate or heat radiation copper coin, it is in cost consideration, the preferred heat-dissipating aluminium plate of the application, and in heat-dissipating aluminium plate, it is provided with heat dissipation copper pipe, the outside of sealing shell 10 is stretched out at the two ends of heat dissipation copper pipe, it is connected for the coolant interface with heat dissipation equipment, in order to make coolant flow through inside heat-dissipating aluminium plate, the heat that converter circuit produces is taken away.
In this specification, each embodiment adopts the mode gone forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually referring to.Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the application.The multiple amendment of these embodiments be will be apparent from for those skilled in the art, and generic principles defined herein when without departing from spirit herein or scope, can realize in other embodiments.Therefore, the application is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (8)
1. a hermetically sealed change of current assembly, it is characterised in that including sealing shell and be arranged on the converter circuit within described sealing shell, in the hole between described sealing shell and described converter circuit, embedding has embedding colloid, and wherein, described converter circuit includes:
Heat dissipation cold plate；
It is arranged on described heat dissipation cold plate and connects into multiple rectifier cells of three-phase bridge circuit；
The input interface line line being connected with the input of described three-phase bridge circuit, the outside remaining at least partially within described sealing shell of described input interface line, for connecting three-phase alternating-current supply；
The output interface line being connected with the outfan of described three-phase bridge circuit, the outside remaining at least partially within described sealing shell of described output interface line, for connecting dc bus.
2. hermetically sealed change of current assembly as claimed in claim 1, it is characterised in that described sealing shell is sheet metal shell.
3. hermetically sealed change of current assembly as claimed in claim 1, it is characterised in that described embedding colloid is the polyurethane composition solidified.
4. hermetically sealed change of current assembly as claimed in claim 1, it is characterised in that described input interface line is copper bar line.
5. hermetically sealed change of current assembly as claimed in claim 1, it is characterised in that described output interface line is stack bus bar line.
6. hermetically sealed change of current assembly as claimed in claim 1, it is characterised in that described rectifier cell is diode element, thyristor or IGBT element.
7. hermetically sealed change of current assembly as claimed in claim 1, it is characterised in that described heat dissipation cold plate is heat-dissipating aluminium plate or heat radiation copper coin.
8. the hermetically sealed change of current assembly as described in any one of claim 1～6, it is characterised in that be provided with heat dissipation copper pipe in described heat dissipation cold plate, wherein:
The two ends of described heat dissipation copper pipe are arranged on the outside of described sealing shell, for connecting the coolant interface of cooling device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610335009.7A CN105811787A (en) | 2016-05-18 | 2016-05-18 | Fully-sealed current-conversion assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610335009.7A CN105811787A (en) | 2016-05-18 | 2016-05-18 | Fully-sealed current-conversion assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105811787A true CN105811787A (en) | 2016-07-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610335009.7A Pending CN105811787A (en) | 2016-05-18 | 2016-05-18 | Fully-sealed current-conversion assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105811787A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08316357A (en) * | 1995-05-15 | 1996-11-29 | Hitachi Ltd | Resin sealed power module |
| JPH09237869A (en) * | 1996-02-29 | 1997-09-09 | Hitachi Ltd | Resin-encapsulated power module device and manufacture thereof |
| CN101675520A (en) * | 2007-05-18 | 2010-03-17 | 株式会社三社电机制作所 | Semiconductor module for electric power |
| CN202856635U (en) * | 2012-08-24 | 2013-04-03 | 青岛航天半导体研究所有限公司 | Hermetically metal-sealed three-phase bridge type rectification module |
| CN203288587U (en) * | 2012-11-30 | 2013-11-13 | 赛米控电子股份有限公司 | Power semiconductor module system |
| CN103779342A (en) * | 2014-01-24 | 2014-05-07 | 嘉兴斯达微电子有限公司 | Power semiconductor module |
| CN204029794U (en) * | 2014-07-25 | 2014-12-17 | 苏州汇川技术有限公司 | IGBT module glue pouring hole safeguard structure and protective plug |
| CN104392942A (en) * | 2014-11-05 | 2015-03-04 | 天津大学 | Method for encapsulating high-power IGBT device through performing non-pressure low-temperature sintering on nano silver soldering paste |
| CN104488078A (en) * | 2012-07-19 | 2015-04-01 | 三菱电机株式会社 | Power semiconductor module |
| CN205622527U (en) * | 2016-05-18 | 2016-10-05 | 珠海格力电器股份有限公司 | Totally enclosed change of current subassembly |
-
2016
- 2016-05-18 CN CN201610335009.7A patent/CN105811787A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08316357A (en) * | 1995-05-15 | 1996-11-29 | Hitachi Ltd | Resin sealed power module |
| JPH09237869A (en) * | 1996-02-29 | 1997-09-09 | Hitachi Ltd | Resin-encapsulated power module device and manufacture thereof |
| CN101675520A (en) * | 2007-05-18 | 2010-03-17 | 株式会社三社电机制作所 | Semiconductor module for electric power |
| CN104488078A (en) * | 2012-07-19 | 2015-04-01 | 三菱电机株式会社 | Power semiconductor module |
| CN202856635U (en) * | 2012-08-24 | 2013-04-03 | 青岛航天半导体研究所有限公司 | Hermetically metal-sealed three-phase bridge type rectification module |
| CN203288587U (en) * | 2012-11-30 | 2013-11-13 | 赛米控电子股份有限公司 | Power semiconductor module system |
| CN103779342A (en) * | 2014-01-24 | 2014-05-07 | 嘉兴斯达微电子有限公司 | Power semiconductor module |
| CN204029794U (en) * | 2014-07-25 | 2014-12-17 | 苏州汇川技术有限公司 | IGBT module glue pouring hole safeguard structure and protective plug |
| CN104392942A (en) * | 2014-11-05 | 2015-03-04 | 天津大学 | Method for encapsulating high-power IGBT device through performing non-pressure low-temperature sintering on nano silver soldering paste |
| CN205622527U (en) * | 2016-05-18 | 2016-10-05 | 珠海格力电器股份有限公司 | Totally enclosed change of current subassembly |
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Application publication date: 20160727 |
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| RJ01 | Rejection of invention patent application after publication |