CN201813308U - Current transformer for high-power electric appliance - Google Patents
Current transformer for high-power electric appliance Download PDFInfo
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- CN201813308U CN201813308U CN2010201405036U CN201020140503U CN201813308U CN 201813308 U CN201813308 U CN 201813308U CN 2010201405036 U CN2010201405036 U CN 2010201405036U CN 201020140503 U CN201020140503 U CN 201020140503U CN 201813308 U CN201813308 U CN 201813308U
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Abstract
The utility model relates to a current transformer (100), and more particularly relates to a current transformer for a high-power electric appliance. The current transformer (100) comprises a structure (101) serving as the self-supporting mechanical structure (101) for the current transformer (100), and providing cooling protection and electric protection for the current transformer (100).
Description
Technical field
The utility model relates to current transformer.Especially, the utility model relates to the current transformer that is used for high-power applications.
Background technology
In middle voltage and high voltage applications field, be extensive use of current transformer.High-power converter or rectifier adopt semiconductor device to convert AC to DC usually.Semiconductor device can connect into doube bridge (DB) connection or double star (DSS) connects, and the quantity of connection depends on required rated voltage and electric current.
Semiconductor device is generally diode or thyristor.For high-power applications, need fully cooling semiconductor device, and need electric protection and certain mechanical strength.Semiconductor device is realized high rated current by being connected in parallel.Because high-power converter or rectifier comprise this semiconductor device of a myriad of, not pipe course so cool off whole heavy-duty rectifier or current transformer and it is carried out electric protection.
Summary of the invention
What can be considered target of the present utility model is to provide improved flexible and cooling efficiently, electric protection and mechanical strength to current transformer or rectifier.
According to the utility model, a kind of current transformer that is used for high-power applications is provided, it is characterized in that described current transformer comprises: structure; Wherein, described structure be used for described current transformer from the supporting machinery structure; Wherein, described structure provides cooling for described current transformer; Wherein, described structure provides electric protection for described current transformer.
According to an embodiment of the present utility model, described structure also comprises: at least one bus; Wherein, described at least one bus provides the multipurpose function; Wherein, described at least one bus provides in order to support the mechanical strength of described current transformer certainly; Wherein, described at least one bus provides electric protection for described current transformer; Wherein, described at least one bus provides cooling for described current transformer.
According to another embodiment of the present utility model, described structure also comprises: horizontal arrangement is at a DC bus of the upside of described structure; Horizontal arrangement is at the 2nd DC bus of the downside of described structure; Vertically arrange and connect at least one the 3rd DC bus of a described DC bus and described the 2nd DC bus; Be arranged at least one the 4th AC bus on the direction of at least a portion of described the 3rd DC bus; At least one first insulator between described at least one the 3rd DC bus and described at least one the 4th AC bus; Wherein, use at least one second insulator that described at least one the 4th AC bus is installed on described at least one the 3rd DC bus, and do not need extra retaining element.
According to another embodiment of the present utility model, each in each in described at least one the 3rd DC bus, a described DC bus and described the 2nd DC bus and described at least one the 4th AC bus comprises at least one cooling duct that is used to guide such as the cooling agent of water; Wherein, realize the described cooling agent guiding of described bus inside by using at least one induction element, described at least one induction element is used for aiming at described bus, so that weld, thereby optimizes manufacture process.
According to another embodiment of the present utility model, use twice described electric structure in the described structure, once be used for the DC positive pole, another time is used for the DC negative pole, thereby makes the DC utmost point separately, reduces short risk thus.
According to another embodiment of the present utility model, provide the closely adjacent of described at least one the 4th AC bus and described at least one the 3rd DC bus.
According to another embodiment of the present utility model, described current transformer is designed to be fit to bushing shell for transformer and arranges, goes up mutually so that transformer secondary sleeve pipe easily is connected to the AC of described current transformer one to one; Wherein, to separate described at least one positive DC framework and described at least one negative DC framework on one at least one positive DC framework of described current transformer and DC framework that at least one the is negative top that is arranged in another with certain horizontal-shift, make when the mutually positive and negative distance that reduces alternately the time between described two AC phase of two AC of described current transformer.
According to another embodiment of the present utility model, described current transformer also comprises: at least one semiconductor.
According to another embodiment of the present utility model, described current transformer also comprises: at least one group of a plurality of semiconductor that is connected in parallel with each other.
According to another embodiment of the present utility model, a pair of described semiconductor that is connected in parallel clips on described at least one the 3rd DC bus, wherein, can select only to press from both sides a semiconductor.
According to another embodiment of the present utility model, described current transformer also comprises: at least one group of a plurality of fuse; At least one group of a plurality of cooler bins; Wherein, each fuse in described at least one group of a plurality of fuses is installed on described at least one the 4th AC bus, and be connected on the cooler bin of correspondence of described at least one group of a plurality of cooler bins, the cooler bin of described correspondence is connected on described at least one group of a plurality of semi-conductive semiconductors; Wherein, each fuse in described a plurality of fuse is suitable for protecting the semiconductor of described a plurality of semi-conductive correspondences; Wherein, described each semiconductor is cooled off by described at least one the 3rd DC bus in a side, and in the cooler bin cooling of opposite side by described correspondence; Wherein, clip to each semiconductor on described at least one the 3rd DC bus, be connected to each cooler bin on the described semiconductor, each cooler bin is connected to flexible connecting member on each fuse, and each fuse that is installed on described the 4th AC bus forms the part of clamp assemblies with at least one the 3rd DC bus of described flexibility; Wherein, accompany on it in each described at least one the 3rd DC bus in described a plurality of semiconductor each, at least one the 4th AC bus of described correspondence, described fuse and cooler bin form phase module; Wherein, described at least one the 4th AC bus is by the coolant cools such as water; Wherein, be used to be connected to connecting plate on each fuse by coolant cools such as water.
According to another embodiment of the present utility model, described current transformer also comprises at least one group of a plurality of clamping device, described each clamping device comprises: at least one clamping york piece, described at least one clamping york piece is used for described at least one group of a plurality of semi-conductive at least one semiconductor are clipped to described at least one the 3rd DC bus, make two semiconductors be installed in the both sides of described the 3rd DC bus, perhaps make a semiconductor be installed in a side of described the 3rd DC bus; Be arranged near each clamping york piece at least one pressure block/collets towards described at least one semiconductor side; Be arranged near at least one cooler bin of each pressure block; Be used for described cooler bin being connected at least one flexible connecting member of described at least one cooler bin on the corresponding fuse by the fuse coldplate; Be arranged in described at least one group of a plurality of semi-conductive at least one semiconductor between each cooler bin and described at least one the 3rd DC bus; Circumferentially surround described at least one semi-conductive at least one guard ring; Wherein, described at least one clamping york piece comprises spring, and described springs preload is to required chucking power; Wherein, use simple mechanism to indicate chucking power correct in the described clamping device; Wherein, described at least one guard ring is made by the flexibility or rigidity material.
According to another embodiment of the present utility model, be used to be equipped with the over voltage protection in described current transformer district of thyristor and the part of fireguard and be directly installed on each phase module, and do not needed extra mounting structure.
According to another embodiment of the present utility model, described current transformer also comprises: be used at least one the AC connection bus in the AC input that secondary sleeve pipe with at least one transformer is connected at least one current transformer; Wherein, described at least one AC connection bus comprises that the small skew between the input pad that allows described bushing shell for transformer and described current transformer obtains balanced aluminium and flexible portion.
According to another embodiment of the present utility model, described current transformer is by the coolant cools such as deionized water; Wherein, element by coolant cools is: each in the described semiconductor of the cooler bin of each in each in each in described at least one DC bus, described at least one the 2nd DC bus, described at least one group of a plurality of the 3rd DC buses, described at least one group of a plurality of the 4th AC buses, the described at least one group of a plurality of fuses, use correspondence separately, and the other parts of described current transformer, for example resistor; Wherein, need all parts of cooling all to be connected on the central manifold, use flexible hose and/or pipe that described central manifold is manufactured in the described structure.
Current transformer cited below can be rectifier.
According to an embodiment of the present utility model, provide the current transformer that is used for high-power applications that comprises structure.This structure be current transformer from the supporting machinery structure, it provides cooling for current transformer, and as the transmission of electricity electrical connector.
According to another embodiment of the present utility model, structure comprises the underframe as the supporting structure of current transformer, and underframe is from supporting current transformer.This structure can be the multi-purpose metal structure.
According to another embodiment of the present utility model, structure comprises having the integrated form water manifold that is used for vertical bus and the vertical metal profile connected horizontally of bus.
According to another embodiment of the present utility model, electric structure is manufactured in the underframe, and electric structure can form metal support structure, and wherein metal support structure can open or close.This structure is very solid, and stands very high short-circuit force.
According to another embodiment of the present utility model, realize cooling by water cooling to current transformer, for example, cooling off the dissipation of heat of possible semiconductor loss, and cooling is because the heat that the electric current that flows in the profile of current transformer causes.
Advantageously need extra insulating material hardly from the supporting machinery structure.
According to another embodiment of the present utility model, current transformer also comprises at least one bus, and wherein this at least one bus provides the multipurpose function.This at least one bus provides in order to supporting the mechanical strength of current transformer certainly, for current transformer provides electric protection and provides cooling for current transformer.
According to another embodiment of the present utility model, the structure of current transformer also comprise horizontal arrangement in a DC bus of the upside of structure, horizontal arrangement at the 2nd DC bus of the downside of structure, vertically arrange and connect at least one the 3rd DC bus of a DC bus and the 2nd DC bus, and at least one the 4th AC bus of arranging along the direction of at least a portion of the 3rd DC bus.At least one first insulator is arranged between at least one the 3rd DC bus and at least one the 4th AC bus.Use at least one second insulator that at least one the 4th AC bus is installed at least one the 3rd DC bus or the first and second DC buses, and do not need extra retaining element.At least one first insulator can be the insulation board between AC and the DC, thereby electric insulation is provided.Use at least one second insulator that the 4th AC bus is installed on the DC structure.
According to another embodiment of the present utility model, 4 second insulators can be provided, 2 tops at the 4th AC bus, 2 in the bottom of the 4th AC bus, and it is mechanically connected to the 4th AC bus on the DC structure (be installed on first and second (level) DC bus but also can be installed in level board on the 3rd (vertically) DC bus).These insulators also provide electric insulation.
According to another embodiment of the present utility model, at least one first insulator is an insulation board.
According to another embodiment of the present utility model, current transformer comprises a plurality of the 3rd DC buses and a plurality of the 4th AC bus, wherein use in a plurality of insulators each that in a plurality of the 4th AC buses each is installed in a plurality of the 3rd DC buses each, each in wherein a plurality of insulators is arranged between in each and a plurality of the 3rd DC bus in a plurality of the 4th AC buses each.
According to another embodiment of the present utility model, at least one the 4th AC bus is installed on the DC main structure, and the DC main structure comprises a DC bus, the 2nd DC bus and at least one the 3rd DC bus.
According to another embodiment of the present utility model, a plurality of the 3rd DC busbar arrangement are between a DC bus and the 2nd DC bus.
According to another embodiment of the present utility model, each in each at least one the 3rd DC bus, a DC bus, the 2nd DC bus and at least one the 4th AC bus comprises at least one cooling duct that is used to guide such as the cooling agent of water.By using simple induction element (for example dog bone shape parts) to come to realize the cooling agent guiding in that bus is inner, for example, use induction element to aim at bus, welding, thereby optimize manufacture process.
According to another exemplary embodiment, in structure, use twice electric structure, once be used for the DC positive pole, another time is used for the DC negative pole, thereby makes the DC utmost point separately, thus and reduction short risk.
According to another embodiment of the present utility model, design allows at least one the 4th AC bus and at least one the 3rd DC bus closely adjacent.
According to another embodiment of the present utility model, current transformer is designed to be fit to bushing shell for transformer and arranges, goes up mutually so that transformer secondary sleeve pipe is connected to the AC of current transformer easily one to one.To make them separately on one at least one positive DC framework of current transformer and DC framework that at least one the is negative top that is arranged in another with certain horizontal-shift, thus the mutually positive and negative distance that reduces alternately the time between them of two AC that make at current transformer.
According to another embodiment of the present utility model, current transformer is designed to be suitable for the bushing shell for transformer layout of inverse parallel rectifier design.
According to another embodiment of the present utility model, current transformer also comprises at least one semiconductor.
At least one semiconductor can be arranged at least one bus place.
According to another embodiment of the present utility model, at least one semiconductor arrangement is at least one the 3rd DC bus place.
According to another embodiment of the present utility model, current transformer also comprises at least one group of a plurality of semiconductor that is connected in parallel with each other.
According to another embodiment of the present utility model, a pair of semiconductor that is connected in parallel clips at least one the 3rd DC bus.Also possible is only a semiconductor to be clipped on the 3rd DC bus.
According to another embodiment of the present utility model, the semi-conductive quantity that is connected in parallel is variable, depends on needed output current.
According to another embodiment of the present utility model, eight semiconductors are connected in parallel, and clip in couples at least one the 3rd vertical DC bus with top the one DC bus and bottom the 2nd DC busbar combination.
According to another embodiment of the present utility model, current transformer also comprises at least one group of a plurality of fuse, and at least one group of a plurality of cooler bin.
Each fuse at least one group of a plurality of fuse is installed at least one the 4th AC bus, and is connected on the cooler bin of correspondence of at least one group of a plurality of cooler bins, and this corresponding cooler bin is connected at least one group of a plurality of semi-conductive semiconductors.Each fuse in a plurality of fuses is suitable for protecting the semiconductor of a plurality of semi-conductive correspondences.Each semiconductor is cooled off by at least one the 3rd DC bus in a side, and in the cooler bin cooling of opposite side by correspondence.Clip to each semiconductor at least one the 3rd DC bus, be connected to each cooler bin on the semiconductor, each cooler bin is connected to flexible connecting member on each fuse, and each fuse that is installed on the 4th AC bus forms the part of clamp assemblies with at least one the 3rd DC bus.Accompany on it in each at least one the 3rd DC bus in a plurality of semiconductors each, corresponding at least one the 4th AC bus, fuse and cooler bin form phase module.At least one the 4th AC bus is by the coolant cools such as water.Be used for cooler bin is connected to connecting plate on each fuse by the coolant cools such as water.
This current transformer allows by fuse and the dissipation of flowing through the heat that the current loss of bus produces.
According to another embodiment of the present utility model, current transformer also comprises a plurality of triple bus-bars, wherein by the 3rd vertical DC bus that uses different length in the DC framework that comprises the first and second DC buses and a plurality of triple bus-bars and the extensibility that current transformer is provided by a plurality of semiconductors that change at each the 3rd DC busbar combination.
According to another embodiment of the present utility model, current transformer also comprises at least one group of a plurality of clamping device, wherein each clamping device comprises at least one clamping york piece, this at least one clamping york piece is used at least one semiconductor of at least one group of a plurality of semiconductors is clipped at least one the 3rd DC bus, thereby make two semiconductors be installed on the both sides of the 3rd DC bus, perhaps make a semiconductor be installed on the side of the 3rd DC bus.Also feasible is for example by use dummy on opposite side, only a semiconductor is clipped on the DC bus.Each clamping device also comprises towards at least one semiconductor side and is arranged near at least one clamping york piece at least one pressure block/collets.Clamping device comprises near at least one cooler bin that is arranged at least one pressure block, and at least one flexible connecting member that is used at least one cooler bin is connected at least one cooler bin on the corresponding fuse.Clamping device also comprises at least one semiconductor at least one group of a plurality of semiconductors that are arranged between at least one cooler bin and at least one the 3rd DC bus.If an only side of at least one the 3rd DC bus is equipped with above and below the element mentioned, then can on another side, use dummy parts and other parts, thereby feasible for example cooler bin is not installed in opposite side.Clamping device also comprises at least one semi-conductive at least one guard ring of circumferential encirclement alternatively, and wherein at least one clamping york piece comprises spring, and springs preload is to required chucking power.Use simple mechanism to indicate chucking power correct in the clamping device.Each guard ring is made by the flexibility or rigidity material.
According to another embodiment of the present utility model, feasible rigid protective ring can be made by single parts, perhaps is made up of some parts.State-of-the-art a kind of ring of forming by two identical parts aspect manufacturability.
According to another embodiment of the utility model, be used to be equipped with the over voltage protection and the fireguard in the current transformer district of thyristor to be directly installed on each phase module, do not need extra mounting structure.
According to another embodiment of the present utility model, dividing plate can be installed between the adjacent phase module of identical DC framework phase, to protect adjacent phase module when the semiconductor short circuit takes place.
According to another embodiment of the present utility model, current transformer comprises that the secondary sleeve pipe that is used at least one transformer is connected at least one the AC connection bus at least one current transformer AC input, and wherein at least one AC connection bus comprises that the small skew between the input pad that allows bushing shell for transformer and current transformer obtains balanced aluminium and flexible portion.
According to another embodiment of the present utility model, connection bus is designed so that to be connected by making 180 ° of connection bus rotations just connection bus can be used for just connect with negative with multi-functional AC connection bus.
According to another embodiment of the present utility model, when the element by coolant cools be at least one DC bus, at least one the 2nd DC bus, at least one group of a plurality of the 3rd DC bus each, at least one group of a plurality of the 4th AC bus each, at least one group of a plurality of fuse each, when using the other parts (for example resistor) of each semiconductor of corresponding cooler bin and current transformer separately, current transformer is by the coolant cools such as deionized water.Need all parts of cooling all to be connected on the central manifold, use flexible hose and/or pipe that central manifold is manufactured in the structure of current transformer.
According to another embodiment of the present utility model, the cooling duct of AC and DC bus is connected with a single manifold.The cooling duct of AC and DC bus can be connected by single parts that are welded on the bus, and all hole combinations that it will enter all endoporus of stream and flow out stream easily are connected on the flexible pipe allowing, and water tube hose for example is if cooling agent is a water.
The embodiment of Miao Shuing vide infra, these and other aspect of the present utility model will become clear.
Description of drawings
To with reference to the exemplary embodiment shown in the accompanying drawing theme of the present utility model be carried out more detailed elaboration hereinafter.
Fig. 1 a has shown the schematic elevational view according to the current transformer of the six pulse system current transformers of embodiment of the present utility model.
Fig. 1 b has shown the schematic side elevation according to the current transformer of Fig. 1 a of the utility model embodiment.
Fig. 2 has shown the perspective schematic view according to the phase module of the current transformer of another embodiment of the present utility model.
Fig. 3 a has shown the perspective schematic view according to DC busbar frame modular construction another embodiment of the present utility model, current transformer.
Fig. 3 b has shown the perspective schematic view according to the part of the vertical DC bus of DC busbar frame assembly another embodiment of the present utility model, Fig. 3 a.
Fig. 3 c has shown the perspective schematic view according to the part of the vertical bus of DC busbar frame assembly another embodiment of the present utility model, Fig. 3 a.
Fig. 3 d has shown the perspective schematic view according to the part of the top of DC busbar frame assembly another embodiment of the present utility model, Fig. 3 a or bottom DC bus.
Fig. 4 has shown the perspective schematic view according to the part of the current transformer of another embodiment of the present utility model.
Fig. 5 a has shown according to the DC bus another embodiment of the present utility model, that separated by the insulation board of current transformer and the schematic side elevation of AC bus.
Fig. 5 b has shown the perspective schematic view according to the part of the current transformer of another embodiment of the present utility model.
Fig. 6 a has shown according to schematic side elevation another embodiment of the present utility model, be connected to the current transformer on the transformer by connection bus.
Fig. 6 b has shown the schematic plan according to the current transformer on the transformer another embodiment of the present utility model, that be connected to Fig. 6 a.
Fig. 6 c has shown according to perspective schematic view another embodiment of the present utility model, that can be used for the AC connection bus among Fig. 6 a and Fig. 6 b.
Fig. 7 has shown the perspective schematic view according to the parts of the clamp assemblies of the current transformer of another embodiment of the present utility model.
Fig. 8 has shown the schematic diagram according to the parts of the guard ring of clamp assemblies another embodiment of the present utility model, Fig. 7 and guard ring.
Fig. 9 has shown according to perspective schematic view another embodiment of the present utility model, that be used for flexible pipe is connected to the water link on the bus of current transformer.
The reference number of Shi Yonging and the meaning thereof are classified list of reference characters as in summary sheet in the accompanying drawings.In principle, same parts is provided with same reference numerals in the accompanying drawings.
REFERENCE NUMBER LIST
100 are used for the current transformer of high-power applications
The structure of 101 structures, current transformer
102 underframe, metal support structure
103 electric structures
104 at least one bus, a DC bus, an a plurality of DC bus
105 at least one bus, the 2nd DC bus, a plurality of at least the 2nd DC bus
106 at least one bus, at least one the 3rd DC bus, a plurality of at least the 3rd DC bus, the 3rd DC bus
107 at least one bus, at least one the 4th AC bus, a plurality of at least the 4th AC bus, the 4th AC bus
108 phase modules
110 manifolds, pipe, flexible pipe, a plurality of manifold, a plurality of pipe, a plurality of flexible pipe
201 at least one first insulator, first insulator, insulation board, first insulator
202 semiconductors, a plurality of semiconductor, at least one semiconductor, a plurality of at least semiconductor
203 fuses, a plurality of fuse, a plurality of at least fuse
204 cooler bins, a plurality of cooler bin, a plurality of at least cooler bin
206 connecting plates, a plurality of connecting plate, a plurality of at least connecting plate
207 clamping devices, clamp assemblies, a plurality of clamping device
208 clamping york pieces, a plurality of clamping york piece, a plurality of at least clamping york piece
209 pressure block/insulation are determined, a plurality of pressure block/collets
210 flexible connecting members, a plurality of flexible connecting member
211 guard rings, a plurality of guard ring
First parts of 212 guard rings
Second parts of 213 guard rings
214 at least one second insulator, a plurality of insulator
301 cooling ducts, a plurality of cooling duct
302 induction elements, a plurality of induction element, at least one induction element
The secondary sleeve pipe of 601 transformers, at least one transformer
602 at least one AC connection bus
901 cooling agent links, a plurality of cooling agent link
P is contiguous
Embodiment
Fig. 1 a has shown the front view of the current transformer 100 that is used for high-power applications, and current transformer comprises structure 101, its be current transformer from supporting machinery structure 101, for current transformer 100 provides cooling, and provide electric protection, for example protect current transformer 100 not short circuits.
Make power structure in structure 101 103 twice, once be used for the DC positive pole, another time is used for the DC negative pole.
Fig. 1 b has shown the end view of the current transformer 100 of the structure 101 with Fig. 1 a, underframe 102 surrounds two phase modules 108 that separate each other, wherein each phase module 108 has the 4th AC bus 107, use at least one second insulator between each the 3rd DC bus 106 and each the 4th AC bus 107 that the 4th AC bus 107 is installed on corresponding one the 3rd DC bus 106, and do not need extra retaining element.
Fig. 2 has shown the perspective view of a part of electric structure 103 of the structure 101 of current transformer 100, the one DC bus 104 horizontal arrangement are at the upside of structure 101 (correspondingly being electric structure 103), the 2nd DC bus 105 horizontal arrangement are at the downside of structure 101 (correspondingly being electric structure 103), and a DC bus 104 and the 2nd DC bus 105 are by vertical layout and be connected a DC bus 104 and the 3rd DC bus 106 of the 2nd DC bus 105 separates.
Four pairs of semiconductors 202 are clipped on the vertical DC bus 106 by the clamping device 207 with corresponding two clamping york pieces 208, thereby make semiconductor 202 be installed on the both sides of the 3rd DC bus 106.Near two pressure block/collets 209 are arranged in each clamping york piece 208 towards semiconductor 202 sides.Two cooler bins 204 are arranged near each pressure block 209, and are arranged near the semiconductor 202, to cool off semiconductor 202 from a side.Semiconductor 202 is cooled off from another side by the 3rd DC bus 106.Flexible connecting member 210 is connected to cooler bin 204 on the corresponding fuse 203, and wherein fuse 203 is installed on the 4th AC bus 107, and the 4th AC bus 107 is installed on the 3rd DC bus 106 by second insulator 214.
The 3rd DC bus 106, a plurality of semiconductor 202, the 4th AC bus 107, fuse 203, cooler bin 204, flexible connecting member 210, the guard ring 211, pressure block/collets 209 and the clamping york piece 208 that circumferentially surround each semiconductor 202 form phase modules 108.
Connecting plate 206 is connected to each fuse 203 on the flexible connecting member 210, and by the coolant cools such as water.
The insulator 201 of insulation board 201 forms separates the 3rd vertical DC bus 106 and the 4th vertical AC bus 107, wherein realizes the closely adjacent p between the 3rd DC bus 106 and the 4th AC bus 107.
Fig. 3 a has shown the perspective exploded view of DC bus structure, this DC bus structure comprises horizontal arrangement at a DC bus 104 of the upside of structure, horizontal arrangement the 2nd DC bus 105 at the downside of structure, and six the 3rd DC buses 106 vertically arranging and connect by induction element 302 DC buses 104 and the 2nd DC bus.
Fig. 3 b has shown the part of the 3rd vertical DC bus 106, and it has a plurality of cooling ducts 301 that are used to cool off the 3rd DC bus 106 and is used for vertical DC bus 106 is connected to induction element 302 on the top DC bus 104.
Fig. 3 c has shown the part of perspective view of the similar embodiment of Fig. 3 c with difform induction element 302.
Fig. 3 d has shown the perspective view of the part of DC bus 104 with a plurality of cooling ducts 301 or the 2nd DC bus 105, and a plurality of cooling duct 301 is separated by groove, so that insert induction element 302.
Fig. 4 has shown the perspective view that has according to the current transformer of six phase modules 108 of the exemplary embodiment of Fig. 2.
Fig. 5 a has shown the end view of the vertical DC bus 106 that is separated by the insulator 201 of insulation board 201 forms and vertical the 4th AC bus 107, has wherein realized the closely adjacent p between the 3rd DC bus 106 and the 4th AC bus 107.
Fig. 5 b has shown the perspective view that has according to the part of the phase module 108 of the current transformer of the element of Fig. 2 and Fig. 4.
Fig. 6 a has shown the end view of the current transformer 100 with structure 101 and phase module 108, and phase module 108 is connected on the secondary sleeve pipe of at least one transformer 601 by at least one AC connection bus 602.At least one AC connection bus 602 is connected to the secondary sleeve pipe of at least one transformer 601 in the AC input of at least one current transformer 100.
At least one AC connection bus 602 can comprise flexible portion.
Fig. 6 b has shown that at least one the AC connection bus 602 by Fig. 6 a is connected to the vertical view of the current transformer 100 on the secondary sleeve pipe of at least one transformer 601.
Fig. 6 c has shown the perspective view that can be used for according to the exemplary form of the AC connection bus 602 of the embodiment of Fig. 6 a and Fig. 6 b.
Fig. 7 has shown and has comprised two pressure blocks 209 are clipped to two clamping york pieces 208 on two cooler bins 204 (have fuse flexible connecting member 210 separately to be connected on the fuse 203, fuse 203 is connected to the 4th AC bus) and the perspective view that clips to the clamping device 207 of two semiconductors 202 on the 3rd DC bus 106.
Fig. 8 has shown the perspective view by some parts 212 and 213 guard rings that constitute 211, and some parts 212 and 213 are identical and attached to each other, thereby makes upper member 213 be attached on the lower member 212, thereby forms guard ring 211.
Fig. 9 has shown the bus 104,105,106,107 that combines some cooling ducts 301, some cooling ducts 301 are connected on the link 901, link 901 is welded on the bus 104,105,106,107, all holes 301 combinations of all endoporus 301 and the outflow flow path direction of stream will be entered, thereby allow easily to be connected on the flexible pipe, water tube hose for example is if cooling agent is a water.
For all the foregoing descriptions, current transformer according to all the foregoing descriptions can be by the coolant cools such as deionized water, wherein by the element of coolant cools be at least one DC bus 104, at least one the 2nd DC bus 105, at least one group of a plurality of the 3rd DC bus 106 each, at least one group of a plurality of the 4th AC bus 107 each, at least one group of a plurality of fuse 203 each, use each semiconductor 202 of corresponding cooler bin 204 separately, and the other feasible parts of current transformer 100, for example resistor.Need all parts of cooling all to be connected on the central manifold 110, use flexible hose and/or pipe that central manifold 110 is manufactured in the structure 101 of current transformer 100.
All the foregoing descriptions all can be in conjunction with all features of describing in summary of the invention of the present utility model and claims.
Though in accompanying drawing and aforementioned description the utility model is had been described in detail and describes, this explanation and description should be thought illustrative and exemplary and nonrestrictive; The utility model is not limited to disclosed embodiment.
By research accompanying drawing, disclosure and claims book, those skilled in the art can understand and realize other variation of disclosed embodiment, and can put into practice claimed the utility model.
In claims, word " comprises " does not get rid of other element or step, and " one " or " one " does not get rid of plural number.Single current transformer just can be realized some function narrating in claims.The nominal fact that some that narrate in mutually different dependent claims measured the combination that does not show that these are measured should not be used to make advantage outstanding.Any reference marker in claims should not be construed as limited field.
Claims (15)
1. current transformer (100) that is used for high-power applications is characterized in that described current transformer (100) comprising:
Structure (101);
Wherein, described structure (101) be used for described current transformer (100) from supporting machinery structure (101);
Wherein, described structure (101) provides cooling for described current transformer (100);
Wherein, described structure (101) provides electric protection for described current transformer (100).
2. current transformer according to claim 1 (100) is characterized in that, described structure (101) also comprises:
At least one bus (104,105,106,107);
Wherein, described at least one bus (104,105,106,107) provides the multipurpose function;
Wherein, described at least one bus (104,105,106,107) provides in order to support the mechanical strength of described current transformer (100) certainly;
Wherein, described at least one bus (104,105,106,107) provides electric protection for described current transformer (100);
Wherein, described at least one bus (104,105,106,107) provides cooling for described current transformer (100).
3. current transformer according to claim 1 (100) is characterized in that, described structure (101) also comprises:
Horizontal arrangement is at a DC bus (104) of the upside of described structure (101);
Horizontal arrangement is at the 2nd DC bus (105) of the downside of described structure (101);
Vertically arrange and connect at least one the 3rd DC bus (106) of a described DC bus (104) and described the 2nd DC bus (105);
Be arranged at least one the 4th AC bus (107) on the direction of at least a portion of described the 3rd DC bus (106);
At least one first insulator (201) between described at least one the 3rd DC bus (106) and described at least one the 4th AC bus (107);
Wherein, use at least one second insulator (214) that described at least one the 4th AC bus (107) is installed on described at least one the 3rd DC bus (106), and do not need extra retaining element.
4. current transformer according to claim 3 (100) is characterized in that,
In in described at least one the 3rd DC bus (106) each, a described DC bus (104) and described the 2nd DC bus (105) and described at least one the 4th AC bus (107) each comprises at least one cooling duct (301) that is used to guide such as the cooling agent of water;
Wherein, realize the described cooling agent guiding of described bus inside by using at least one induction element (302), described at least one induction element (302) is used for aiming at described bus, so that weld, thereby optimizes manufacture process.
5. current transformer according to claim 3 (100) is characterized in that,
Use twice described electric structure (103) in the described structure (101), once be used for the DC positive pole, another time is used for the DC negative pole, thereby makes the DC utmost point separately, reduces short risk thus.
6. current transformer according to claim 3 (100) is characterized in that,
Closely adjacent (p) of described at least one the 4th AC bus (107) and described at least one the 3rd DC bus (106) is provided.
7. current transformer according to claim 1 (100) is characterized in that,
Described current transformer (100) is designed to be fit to bushing shell for transformer and arranges (601), goes up mutually so that transformer secondary sleeve pipe (601) easily is connected to the AC of described current transformer (100) one to one;
Wherein, to separate described at least one positive DC framework and described at least one negative DC framework on one at least one positive DC framework of described current transformer (100) and DC framework that at least one the is negative top that is arranged in another with certain horizontal-shift, make when the mutually positive and negative distance that reduces alternately the time between described two AC phase of two AC of described current transformer (100).
8. according to each described current transformer (100) in the claim 1 to 7, it is characterized in that described current transformer (100) also comprises:
At least one semiconductor (202).
9. according to each described current transformer (100) in the claim 1 to 7, it is characterized in that described current transformer (100) also comprises:
At least one group of a plurality of semiconductors (202) that are connected in parallel with each other.
10. current transformer according to claim 9 (100) is characterized in that,
The a pair of described semiconductor that is connected in parallel (202) clips on described at least one the 3rd DC bus (106), wherein, can select only to press from both sides a semiconductor (202).
11. current transformer according to claim 10 (100) is characterized in that, described current transformer (100) also comprises:
At least one group of a plurality of fuses (203);
At least one group of a plurality of cooler bins (204);
Wherein, each fuse (203) in described at least one group of a plurality of fuses (203) is installed on described at least one the 4th AC bus (107), and be connected on the cooler bin (204) of correspondence of described at least one group of a plurality of cooler bins (204), the cooler bin of described correspondence (204) is connected on the semiconductor (202) of described at least one group of a plurality of semiconductors (202);
Wherein, each fuse (203) in described a plurality of fuse (203) is suitable for protecting the semiconductor (202) of the correspondence of described a plurality of semiconductor (202);
Wherein, described each semiconductor (202) is cooled off by described at least one the 3rd DC bus (106) in a side, and in cooler bin (204) cooling of opposite side by described correspondence;
Wherein, clip to each semiconductor (202) on described at least one the 3rd DC bus (106), be connected to each cooler bin (204) on the described semiconductor (202), each cooler bin (204) is connected to flexible connecting member (210) on each fuse (203), and each fuse (203) that is installed on described the 4th AC bus (107) forms the part of clamp assemblies with at least one the 3rd DC bus (106) of described flexibility;
Wherein, accompany on it in each described at least one the 3rd DC bus (106) in described a plurality of semiconductor (202) each, at least one the 4th AC bus (107), described fuse (203) and the cooler bin (204) of described correspondence form phase module (205);
Wherein, described at least one the 4th AC bus (107) is by the coolant cools such as water;
Wherein, be used to be connected to connecting plate (206) on each fuse (203) by coolant cools such as water.
12. current transformer according to claim 11 (100) is characterized in that, described current transformer (100) also comprises at least one group of a plurality of clamping devices (207), and described each clamping device (207) comprising:
At least one clamping york piece (208), described at least one clamping york piece (208) is used at least one semiconductor (202) of described at least one group of a plurality of semiconductors (202) is clipped to described at least one the 3rd DC bus (106), make two semiconductors (202) be installed in the both sides of described the 3rd DC bus (106), perhaps make a semiconductor (202) be installed in a side of described the 3rd DC bus (106);
Be arranged near at least one the pressure block/collets (209) of each clamping york piece (208) towards described at least one semiconductor (202) side;
Be arranged near at least one cooler bin (204) of each pressure block (209);
Be used for described cooler bin (204) being connected at least one flexible connecting member (210) of described at least one cooler bin (204) on the corresponding fuse (203) by fuse coldplate (206);
Be arranged at least one semiconductor (202) of the described at least one group of a plurality of semiconductors (202) between each cooler bin (204) and described at least one the 3rd DC bus (106);
Circumferentially surround at least one guard ring (211) of described at least one semiconductor (202);
Wherein, described at least one clamping york piece (208) comprises spring, and described springs preload is to required chucking power;
Wherein, use simple mechanism to indicate chucking power correct in the described clamping device;
Wherein, described at least one guard ring (211) is made by the flexibility or rigidity material.
13. current transformer according to claim 11 (100) is characterized in that,
Be used to be equipped with the over voltage protection in described current transformer (100) district of thyristor and the part of fireguard and be directly installed on each phase module (205), and do not needed extra mounting structure.
14., it is characterized in that described current transformer (100) also comprises according to each described current transformer (100) in the claim 1 to 7:
Be used at least one the AC connection bus (602) in the AC input that secondary sleeve pipe with at least one transformer (601) is connected at least one current transformer (100);
Wherein, described at least one AC connection bus comprises that the small skew between the input pad that allows described bushing shell for transformer (601) and described current transformer (100) obtains balanced aluminium and flexible portion.
15. current transformer according to claim 8 (100) is characterized in that,
Described current transformer (100) is by the coolant cools such as deionized water;
Wherein, the element by coolant cools is:
In the described semiconductor (202) of the cooler bin (204) of each in each in each in described at least one DC bus (104), described at least one the 2nd DC bus (105), described at least one group of a plurality of the 3rd DC buses (106), described at least one group of a plurality of the 4th AC buses (107), the described at least one group of a plurality of fuses (203), use correspondence separately each, and the other parts of described current transformer (100), for example resistor;
Wherein, need all parts of cooling all to be connected on the central manifold (110), use flexible hose and/or pipe that described central manifold is manufactured in the described structure (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201405036U CN201813308U (en) | 2010-02-26 | 2010-02-26 | Current transformer for high-power electric appliance |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010201405036U CN201813308U (en) | 2010-02-26 | 2010-02-26 | Current transformer for high-power electric appliance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935262A (en) * | 2014-04-25 | 2014-07-23 | 宁波南车城市轨道交通装备有限公司 | Multi-device installation structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935262A (en) * | 2014-04-25 | 2014-07-23 | 宁波南车城市轨道交通装备有限公司 | Multi-device installation structure |
| CN103935262B (en) * | 2014-04-25 | 2016-03-02 | 宁波南车城市轨道交通装备有限公司 | A kind of many equipment mounting structures |
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