CN109026529A - A kind of Wind turbines frequency conversion tank - Google Patents

A kind of Wind turbines frequency conversion tank Download PDF

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Publication number
CN109026529A
CN109026529A CN201811162972.5A CN201811162972A CN109026529A CN 109026529 A CN109026529 A CN 109026529A CN 201811162972 A CN201811162972 A CN 201811162972A CN 109026529 A CN109026529 A CN 109026529A
Authority
CN
China
Prior art keywords
igbt
panel
plate
mounting
frequency conversion
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
Application number
CN201811162972.5A
Other languages
Chinese (zh)
Inventor
王宇
廖川
唐显虎
夏桂森
梁媛媛
苗天
徐键
陈柳竹
席明堃
易炯燕
高志文
王平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHONGQING KK-QIANWEI WINDPOWER EQUIPMENT Co Ltd
Original Assignee
CHONGQING KK-QIANWEI WINDPOWER EQUIPMENT Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHONGQING KK-QIANWEI WINDPOWER EQUIPMENT Co Ltd filed Critical CHONGQING KK-QIANWEI WINDPOWER EQUIPMENT Co Ltd
Priority to CN201811162972.5A priority Critical patent/CN109026529A/en
Publication of CN109026529A publication Critical patent/CN109026529A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D7/00Controlling wind motors
    • F03D7/02Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/028Controlling motor output power
    • F03D7/0284Controlling motor output power in relation to the state of the electric grid
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D7/00Controlling wind motors
    • F03D7/02Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/028Controlling motor output power
    • F03D7/0292Controlling motor output power to increase fatigue life
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D80/00Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/02Details
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

Abstract

The invention discloses a kind of Wind turbines frequency conversion tank, including power module cabinet, the front panel edge of the power module cabinet is fixedly connected on doorframe by screw;It is characterized by: the front panel is generally at short transverse medium position, the upper surface of transverse direction disjunction plate and lower panel are assembled, and adjacent side edge is fixedly linked by screw and upper and lower door-plate with connector between the top panel and lower panel, the outer surface of the top panel and lower panel is fixedly installed with door handle respectively.Wind turbines disclosed by the invention with frequency conversion tank have it is simple for structure, it is more convenient that front panel is separated and install so that power module cabinet be easier to dimension examine the advantages of.

Description

A kind of Wind turbines frequency conversion tank
Technical field
The invention belongs to wind power generating set fields, and in particular to a kind of Wind turbines frequency conversion tank.
Background technique
Being equipped with frequency conversion tank in Wind turbines (also referred to as are as follows: wind power generating set) on the platform in column foot cabin (can also be referred to as For " frequency converter "), the effect for installing frequency conversion tank is in order to enable the power of the assembling unit stablizes output, the bad shadow that power grid is impacted in reduction It rings;The operating frequency for reducing pulp distance varying mechanism, extends the service life of pulp distance varying mechanism.
Existing Wind turbines are with frequency conversion tank (referring to shown in this specification attached drawing 1;Separately referring also to notification number: CN201401296Y, structure shown in entitled " a kind of wind generating set tower footing frequency conversion cabinet mounting structure conducive to heat dissipation ") include Grid-connection cabinet 1, control cabinet 2 and the power module cabinet 3 being arranged side by side.Wherein, because being transversely mounted multiple power in power module cabinet 3 Module (IGBT module), the volume of each power module is larger, causes the width of power module cabinet 3 maximum in three face cabinets; At the same time, also as the front panel of power module cabinet 3 generally one piece of edge is fixed by screws in the door on doorframe Plate.So that power module cabinet 3 has following shortcoming:
Firstly, dimension inspection gets up to be inconvenient, specifically: because the front panel of power module cabinet 3 is integrally heavier, needs two works Making Collaboration firmly can just be moved away from, can be to carrying out dimension inspection in cabinet after front panel is moved away from.So front panel is removed It is more inconvenient from getting up, not enough facilitate so that the dimension inspection of power module cabinet is got up.
Secondly, the front panel of power module 3 is integrally larger, it is more inconvenient to shift or place in narrow column foot cabin.
Based on this, applicant considers to design a kind of simple for structure, and it is more convenient that front panel is separated and installed, so that power mould Block cabinet is easier to the Wind turbines frequency conversion tank of dimension inspection.
Summary of the invention
In view of the above shortcomings of the prior art, the technical problems to be solved by the present invention are: how to provide a kind of structure letter Clean, it is more convenient that front panel is separated and installed, so that power module cabinet is easier to the Wind turbines frequency conversion tank of dimension inspection.
In order to solve the above-mentioned technical problem, present invention employs the following technical solutions:
The front panel edge of a kind of Wind turbines frequency conversion tank, including power module cabinet, the power module cabinet passes through spiral shell Nail is fixedly connected on doorframe;It is characterized by: front panel transverse direction disjunction generally at short transverse medium position Top panel and lower panel are assembled, and adjacent side edge is used by screw and upper and lower door-plate between the top panel and lower panel Connector is fixedly linked, and the outer surface of the top panel and lower panel is fixedly installed with door handle respectively.
Compared with the existing technology compared with Wind turbines of the invention are had the advantage, that with frequency conversion tank
1, transformation is small, easy to implement, specifically: only by the way that existing monolith front panel is divided into two, it is transformed by above Plate and lower panel assembly and the structure for constituting front panel have the advantages that structure is simple, is readily produced.
2, being more convenient for, one separates and ties up inspection power module cabinet, specifically: it is different from existing power module cabinet front panel Generally one piece of panel simultaneously has the characteristics that weight and area are larger, and front panel is divided into two by this programme, and this makes it possible to drop The low respective weight of upper and lower panel and area, consequently facilitating one separates and shifts upper and lower panel and to carrying out dimension inspection in cabinet, It helps to improve the efficiency that dimension is examined.
Detailed description of the invention
Fig. 1 is the front view of existing Wind turbines frequency conversion tank.
Fig. 2 is the front view of the front panel of the power module cabinet in Wind turbines frequency conversion tank of the present invention.
Fig. 3 is the rearview of front panel in Fig. 2.
Fig. 4 is the enlarged view at I in Fig. 3.
Fig. 5 is the side view of front panel in Fig. 2.
Fig. 6 is the enlarged view at II in Fig. 5.
Fig. 7 is the structural schematic diagram of Wind turbines frequency conversion tank inner terminal groove mounting of the present invention.
Fig. 8 is the side view of Wind turbines frequency conversion tank inner terminal groove mounting of the present invention.
Fig. 9 is the structural representation of the first embodiment of Wind turbines frequency conversion tank inner terminal wire casing mounting structure of the present invention Figure.
Figure 10 is the explosive view of Fig. 9.
Figure 11 is that the structure of second of embodiment of Wind turbines frequency conversion tank inner terminal wire casing mounting structure of the present invention is shown It is intended to.
Fig. 2 is marked into Fig. 6
100 top panels: 101 module heat dissipating mouths, 102 vents;
200 lower panels: 201 exhaust fans;
About 300 door-plate connectors: 301 protrusions, 302 power module support mounting plates, 303 current transformers installation branch Frame;
400 IGBT modules: 401 mounting boxs;
500 IGBT brackets: 501 installation sides;
600 ground connection busbars;
700 insulators;
800 main busbars;
900 current transformers;
1000 wire casings;
Fig. 7 is marked into Figure 11
10 sheet metal components: 11 wire casing mounting portions, 12 guide rail mounting portions, mounting blocks on 13,14 bending angles, 15 lower mounting blocks, 16 ground connection Row uses rest pad;
17 earthing bars;
18 insulated columns;
19 wire casings;
20 guide rails.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing.
It is as shown in Figures 2 to 6: a kind of Wind turbines frequency conversion tank, including power module cabinet, before the power module cabinet Panel edge is fixedly connected on doorframe by screw;The front panel is lateral generally at short transverse medium position The upper surface of disjunction plate 100 and lower panel 200 are assembled, and adjacent side edge is logical between the top panel 100 and lower panel 200 It crosses screw and upper and lower door-plate connector 300 is fixedly linked, the outer surface of the top panel 100 and lower panel 200 is fixed respectively Door handle is installed.
Wherein, the door-plate up and down is set at 200 disjunction of the top panel 100 and lower panel with connector 300 is whole Inside, and the vertical plate structure of strip that door-plate connector 300 extends for length along front panel width direction up and down, There is inside protrusion 301 at the door-plate up and down disjunction for being located at top panel 100 and lower panel 200 on connector 300, and The protrusion 301 is formed simultaneously with the outside groove of notch;
The door-plate up and down is equipped with between the plate face and the top panel 100 for being located at raised 301 top on connector 300 One-to-one connecting hole, it is described up and down door-plate on connector 300 be located at it is described it is raised 301 lower section plate face and it is described above One-to-one connecting hole is equipped between plate 100, and the connecting hole is along the length side of the door-plate connector 300 up and down To spaced at least two.
The structure of above-mentioned door-plate connector 300 up and down can not only be promoted certainly by the bending above " protrusion 301 " The intensity of body structure;Also as being each provided with above and below protrusion 301 corresponding with top panel 100 and lower panel 200 Connecting hole, therefore screw can be used to be easily fixed together link block and upper and lower panel 200.In addition, only needing When separating in top panel 100 or lower panel 200 any one piece, the screw between the block panel and link block need to only be separated i.e. Can, without separating another piece of screw between panel and link block, therefore separating or installing for monolithic panel is also more convenient.
Wherein, the edge of the top panel 100 and the edge of lower panel 200 are respectively provided with in-flanges, and institute The in-flanges between top panel 100 and lower panel 200 on adjacent side edge is stated to be inserted into the groove.
The setting of above-mentioned in-flanges can not only be obviously improved the whole structural strength of upper and lower panel 200, and use " on In-flanges between panel 100 and lower panel 200 on adjacent side edge is inserted into the groove " structure it is also possible that up and down 200 disjunction junction of panel is more smooth, promotes the succinct and aesthetics of front panel entirety.
Wherein, Wind turbines with frequency conversion tank further include for the IGBT bracket 500 for 400 fixed installation of IGBT module, The IGBT bracket 500 is bar shaped groove-like structure, and the length of the bar shaped groove-like structure extends and is open along front panel width direction Downward, it is laterally extended at the notch of the bar shaped groove-like structure and is formed with installation side 501;
The door-plate up and down is laterally inward with the upper edge of connector 300 has extended to form power module support mounting plate 302, the IGBT bracket 500 is whole to be put off on the power module support mounting plate 302, and the IGBT bracket 500 Installation side 501 and the power module support between the surface of mounting plate 302 be arranged in a one-to-one correspondence mounting hole, it is described The installation side 501 of IGBT bracket 500 and the power module support and by nut and through connecting hole are installed with mounting plate 302 The bolt in hole is fixed together.
Using above on " upper and lower door-plate connector 300 " integrated power module bracket mounting plate 302 structure, no The installation fixed structure of IGBT bracket 500 can only be simplified, additionally it is possible to so that the IGBT module 400 being fixed on IGBT bracket 500 It is nearest apart from front panel, and the heat for enabling to IGBT module 400 to issue can be radiated and be conducted to front panel, and before passing through Panel comes faster and efficient heat dissipation, so that IGBT module 400 is persistently in running environment preferably, is promoted and is used Reliability.
When implementation, IGBT module 400 is and each IGBT module spaced 6 along 500 length direction of IGBT bracket 400 lower end is fixed on the upper surface of IGBT bracket 500 by a mounting box 401 and screw.
Wherein, Wind turbines frequency conversion tank further includes ground connection busbar 600, and the ground connection busbar 600 is generally along IGBT branch The strip structure that 500 length direction of frame extends, whole neighbouring 500 upper surface of IGBT bracket of ground connection busbar 600 are arranged, The ground connection busbar 600, which is equipped with, corresponds the connecting hole being connected, the ground connection busbar with the shell of each IGBT module 400 600 end is equipped with the connecting hole being connected with earth cable.
After above-mentioned ground connection busbar 600 is set, it can be avoided IGBT module 400 and leak electricity (and front panel is charged) and cause The danger of electrical hazard, it is ensured that Wind turbines are used safer with frequency conversion tank.
Wherein, the lateral surface of the side wall in the bar shaped groove-like structure of the IGBT bracket 500 away from the front panel passes through Insulator 700 is fixedly installed with main busbar 800, and the upper end of the main busbar 800 is connected with the output end of IGBT module 400, Current transformer 900 is run through in the lower end of the main busbar 800.
It using the mounting structure of above-mentioned main busbar 800, may make main 800 mounting structure of busbar simpler, and needing to overhaul When, only need to individually separate top panel 100 can expose main busbar 800 and IGBT module 400 etc., so that quick inspection can be realized It repairs.
Wherein, Wind turbines frequency conversion tank further includes 900 mounting structure of current transformer, and the current transformer 900 is pacified Assembling structure includes 900 mounting bracket 303 of current transformer, and 900 mounting bracket 303 of current transformer is by the power module Bracket is extended downwardly far from the door-plate up and down with the edge of connector 300 on mounting plate 302, the current transformer 900 mounting brackets 303 are fixedly installed with current transformer 900, and current transformer 900 on the downside of the surface of the front panel It is multiple to be arranged in a one-to-one correspondence with main busbar 800.
So, i.e., so that being fixedly connected on one by upper and lower door-plate connector 300 at disjunction between upper-lower door plate While rising, but also door-plate can form bearing to upper and lower door-plate connector 300 up and down;And in upper and lower door-plate connector After 300 is fixed, namely simultaneously by the power module support that is integrated on upper and lower door-plate connector 300 with 302 He of mounting plate 900 mounting bracket 303 of current transformer realizes that IGBT bracket 500 and the Fast Installation of current transformer 900 are fixed, and makes IGBT bracket 500, main busbar 800 and current transformer 900 are whole closer to front panel, in this way convenient for closely quick dimension inspection Meanwhile also being conducive to generate heat to radiate or conducted with connector 300 to front panel by upper and lower door-plate and radiate, to obtain more excellent Use environment.
When implementation, as shown in Figure 4 and Figure 6,900 mounting bracket 303 of current transformer is tool in lengthwise section shape There is the ladder-like of level-one step, and current transformer 900 is installed on the bottom of the step;At the same time, corresponding above-mentioned Current Mutual Inductance is being run through to after bending far from front panel direction in the middle part of the structure of rank, main 800 length direction of busbar straight down Device 900.Have the advantage that main busbar 800 is whole in bending using this programme, i.e., can using the busbar structure of bending come Promote the structural strength of main busbar 800.
Wherein, Wind turbines frequency conversion tank further includes 1000 mounting structure of wire casing, and 1000 mounting structure of wire casing includes 1000 mounting surface of wire casing, 1000 mounting surface of wire casing by 900 mounting bracket 303 of current transformer towards front panel Surface is constituted, and the wire casing 1000 is fixed by screws on 1000 mounting surface of wire casing;1000 mounting structure of wire casing is also Including threading hole, the slot bottom and wire casing of power module support mounting plate 302,500 bar shaped groove-like structure of IGBT bracket Threading hole is respectively equipped on 1000 mounting surfaces, and threading hole is spaced multiple along 500 length direction of IGBT bracket.
The installation of above-mentioned wire casing 1000 can make full use of the same of the space surrounded inside upper and lower door-plate connector 300 When, so that IGBT module 400 and current transformer 900 are nearest apart from wire casing 1000, to be easier to IGBT and Current Mutual Inductance Various cables on device 900 the most easily carry out cabling after threading hole and through wire casing 1000.
Wherein, Wind turbines frequency conversion tank further includes radiator structure, and the radiator structure includes exhaust fan 201 and vent 102;The exhaust fan 201 is fixedly mounted on the medial surface of the lower panel 200 and by being connected to outside air inlet hole and cabinet, and described Exhaust fan 201 is used for will be in the air dispatch to cabinet outside cabinet;The vent 102 is set to the upper section of the top panel 100.
After above-mentioned radiator structure, i.e., can using the exhaust fan 201 being mounted on lower panel 200 come in cabinet formed by The air-flow of upward flowing down, and the air-flow because flowing in cabinet is flowing through master of the place at entire cabinet body short transverse medium position Hot-air after becoming expansion from the cold air of small volume after busbar 800 and IGBT module 400, hot-air is lighter and passes through Air pressure after expansion may make hot-air to be more rapidly discharged from vent 102 and bring heat outside cabinet into, same with this When, the rapid discharge of hot-air forms certain negative pressure but also cabinet is interior, thus help to promote the intake at exhaust fan 201, And then obtain more preferably heat dissipation effect.
When implementation, the preferably described exhaust fan 201 is spaced three, and the vent 102 is to be horizontally arranged at interval Two.
Wherein, the radiator structure further include on top panel 100 position corresponding with each IGBT module 400 be arranged Module heat dissipating mouth 101, the part on each 400 shell of IGBT module are exposed outside cabinet body by the module heat dissipating mouth 101.
400 shell of IGBT module can be sent the heat of the sending of IGBT module 400, therefore use above-mentioned module heat dissipating mouth 101 Scheme after, the partial heat that IGBT module 400 issues can be passed directly to cabinet body, so, i.e., reduction cabinet The calorific value of body, help reduce the intracorporal temperature of cabinet.
In addition, Wind turbines frequency conversion tank inner terminal groove mounting of the present invention, the terminal line as shown in Fig. 7 to Fig. 8 Slot mounting bracket has the guide rail bracket of wire casing erection scaffolding and mounting terminal, including integrally formed sheet metal component, described Sheet metal component is integrally in lateral string configuration, and the sheet metal component has wire casing mounting portion 11 and guide rail mounting portion 12, wherein line Slot mounting portion 11 is for constituting wire casing erection scaffolding, and guide rail mounting portion 12 is for constituting guide rail bracket;The wire casing installation The section in portion 11 is L-type, and the end margin on the horizontal edge of the L-type far from vertical edge has integrally been downwardly extending the guide rail peace Dress portion 12;The upper end of the wire casing mounting portion 11 is convex to be formed with mounting blocks 13, convex under the lower end of the guide rail mounting portion 12 It is formed with lower mounting blocks 15.
Wherein, the upper mounting blocks 13 and lower mounting blocks 15 are respectively to be arranged along the length direction interval of the sheet metal component 10 At least two, and each upper mounting blocks 13 and lower 15 surface of mounting blocks are provided through mounting hole.
Using the structure of above upper mounting blocks 13 and lower mounting blocks 15, it is whole in cabinet can further to promote sheet metal component 10 The solid and reliable degree of installation, it is ensured that the reliability of cable and terminal connections.
Wherein, the bar shaped that the upper mounting blocks 13 integrally upwardly extend is blocky, and the upper mounting blocks 13 are in length direction Middle part have and be greater than 90 degree bending angles 14, and the bending angle 14 is whole adjacent to wire casing mounting portion 11.
As shown in figure 8, after adopting the above scheme, the structure that upper mounting blocks 13 can be promoted by the structure of bending is strong Degree.In addition, may make that " wire casing mounting portion 11 " after installation is fixed is whole inclined after structure using the above mounting blocks 13 Shape, and enable simultaneously wire casing mounting portion 11L type section vertical edge and 10 mounting surface of sheet metal component between there are gap, the gaps The reserved side wall for allowing for the wire casing that cable is very easily installed from sheet metal component 10 on line threading rod hole run through, thus into One step helps to improve the threading and cabling efficiency of wire casing.
Wherein, the lower mounting blocks 15 integrally extend downwardly bar shaped is blocky, and the lower mounting blocks 15 it is whole with it is described One section for being located at 14 top of bending angle on upper mounting blocks 13 is parallel.
After this scheme, that is, terminal block and wire casing (wire casing mounting portion 11) may make integrally to face in cabinet door in cabinet When face, can be stretched out to cabinet door direction, shorten cabinet door to the distance between terminal block and wire casing, with this worker's cabling of being more convenient for, Wiring and maintenance.
Wherein, electrical cabinet of wind turbine generator unit inner terminal groove mounting further includes insulated column 18, and the insulated column 18 is whole For in bar shaped column structure, and the spacing between the both ends of the insulated column 18 and the lower mounting blocks 15 and the upper mounting blocks The spacing being located between one section of 14 top of bending angle on 13 is equal;And an end face spirogyrate of the insulated column 18 is at there is screw thread Column, other end center position are equipped with threaded hole.
After above-mentioned insulated column 18, it can easily realize that the installation of lower mounting blocks 15 is fixed by insulated column 18, Improve the installation effectiveness of lower mounting blocks 15 and sheet metal component 10.
As shown in figure 11, the setting of above-mentioned insulated column 18 is installed particularly convenient in electrical cabinet of wind turbine generator unit inner terminal wire casing Bracket is installed in vertical multilayer and is fixed, so that the flexibility used and ease for use of this product be substantially improved.
Wherein, the lower end of the guide rail mounting portion 12 has also convexed into down earthing bar rest pad 16, and the earthing bar It is along 10 length direction of sheet metal component spaced at least two with rest pad 16, at least two earthing bars are common with rest pad 16 It is fixed for being installed for earthing bar 17.
After adopting the above scheme, earthing bar 17 can be easily installed for the cable rapid grounding on terminal or to connect shielding Layer shortens ground connection or connects the wiring distance of shielded layer, saves length of cable and wiring reliability.
Wherein, the section of the earthing bar 16 entirety of rest pad and the wire casing mounting portion 11 is the vertical edges phase of L-type In parallel.
Likewise, combining above " the bar shaped bulk that the upper mounting blocks 13 integrally upwardly extend, and the upper mounting blocks 13 Have at the middle part of length direction and be greater than 90 degree of bending angles 14, and the structure of the whole neighbouring wire casing mounting portion 11 " of the bending angle 14, I.e. after the installation of sheet metal component 10 is fixed so that earthing bar with rest pad 16 closer to cabinet door, consequently facilitating worker protrudes into and complete At wiring.
Wherein, there are 90 degree to bend downward bending part for the lower end of earthing bar rest pad 16, on the bending part It is provided through mounting hole.
It may make the through direction court for the wiring hole for being fixedly mounted on earthing bar rest pad 16 after adopting the above scheme To terminal and it is easier to threading and the wiring of cable.
At the same time, the structural strength of earthing bar rest pad 16 can be also promoted by the bending structure of bending part.
It is as shown in Figure 9 and Figure 10 the first reality of Wind turbines of the present invention frequency conversion tank inner terminal wire casing mounting structure Apply example:
It is installed laterally side by side using at least above sheet metal component 10, single wire casing integral installation is at least two installed laterally side by side On the wire casing mounting portion 11 of sheet metal component 10, and the bottom of single wire casing is fixedly mounted on the L-type of wire casing mounting portion 11 by screw The horizontal edge upper surface of section, a side wall of single wire casing is contacted with the vertical edge of the L-type section of wire casing mounting portion 11 to be connected, and institute State the height of the height of vertical edge lower than the line threading rod hole lower end of wire casing side wall;The guide rail bracket of mounting terminal is entirely through screw It is fixedly mounted on the guide rail mounting portion 12 at least two sheet metal components 10 installed laterally side by side.
The electrical cabinet of wind turbine generator unit inner terminal wire casing mounting structure of the present embodiment, can more wire casing or guide rail length come Flexibly the sheet metal component 10 of corresponding number is selected to install laterally side by side, to better meet the wire casing or guide rail of various length Installation requirement has better practicability.
As shown in figure 11 it is second of embodiment of Wind turbines of the present invention frequency conversion tank inner terminal wire casing mounting structure:
The metal plate vertically successively installed using at least two sheet metal component 10, and be located above in two adjacent sheet metal components 10 It is fixed together between the lower mounting blocks 15 of part 10 and the upper mounting blocks 13 of underlying sheet metal component 10;
The wire casing mounting portion 11 of each sheet metal component 10 is mounted by means of screws with a wire casing, the side wall and wire casing of wire casing The vertical edge contact of the L-type section of mounting portion 11 is connected, and the height of the vertical edge is lower than the line threading rod hole lower end of wire casing side wall Highly;
The guide rail mounting portion 12 of each sheet metal component 10 is mounted by means of screws with the guide rail of one piece of mounting terminal.
The electrical cabinet of wind turbine generator unit inner terminal wire casing mounting structure of the present embodiment, is more convenient for making full use of the vertical sky in cabinet Between come arranging multiplayer wire casing and/or guide rail, better meeting needs the cabling of the electrical cabinet of wind turbine generator unit of intensive wiring and wiring to want It asks.
The above is only the preferred embodiment of the present invention, it is noted that not departing from this for those skilled in the art Under the premise of technical solution, the technical solution for the several modifications and improvements made should equally be contemplated as falling within the claims requirement The range of protection.

Claims (10)

1. the front panel edge of a kind of Wind turbines frequency conversion tank, including power module cabinet, the power module cabinet passes through Screw is fixedly connected on doorframe;It is characterized by: front panel transverse direction disjunction generally at short transverse medium position The upper surface of plate and lower panel it is assembled, and between the top panel and lower panel adjacent side edge pass through screw and upper and lower door-plate It is fixedly linked with connector, the outer surface of the top panel and lower panel is fixedly installed with door handle respectively.
2. Wind turbines frequency conversion tank according to claim 1, it is characterised in that: the connector entirety of door-plate up and down Inside at the top panel and lower panel disjunction, and the door-plate up and down is length along front board width side with connector To the vertical plate structure of strip of extension, it is located at the disjunction of top panel and lower panel on the door-plate connector up and down and has There is inside protrusion, and the protrusion is formed simultaneously with the outside groove of notch;
It is located to be equipped between the plate face and the top panel of the protrusion top on the door-plate connector up and down and corresponds Connecting hole, be located between the plate face and the top panel of the protrusion lower section on the door-plate connector up and down and be equipped with one by one Corresponding connecting hole, and the connecting hole is the length direction spaced at least two along the door-plate connector up and down It is a.
3. Wind turbines frequency conversion tank according to claim 2, it is characterised in that: the edge of the top panel is under The edge of panel is respectively provided with in-flanges, and the in-flanges insertion between the top panel and lower panel on adjacent side edge In the groove.
4. Wind turbines frequency conversion tank according to claim 2 or 3, it is characterised in that: further include for for IGBT module The IGBT bracket of fixed installation, the IGBT bracket are bar shaped groove-like structure, and the length of the bar shaped groove-like structure is along front panel Width direction extend and it is opening down, be laterally extended at the notch of the bar shaped groove-like structure be formed with installation side;
The upper edge of door-plate connector up and down, which is laterally inward, has extended to form power module support mounting plate, described IGBT bracket is integrally put off on the power module support mounting plate, and the installation side of the IGBT bracket and the power Mounting hole, the installation side of the IGBT bracket and the power have been arranged in a one-to-one correspondence between the surface of module carrier mounting plate Module carrier is fixed together with mounting plate by nut and through the bolt of connecting hole and mounting hole.
5. Wind turbines frequency conversion tank according to claim 4, it is characterised in that: further include ground connection busbar, the ground connection The strip structure that busbar generally extends along IGBT stent length direction, the ground connection busbar are whole on the IGBT bracket Surface setting, the ground connection busbar, which is equipped with, corresponds the connecting hole being connected, the ground connection with the shell of each IGBT module The end of busbar is equipped with the connecting hole being connected with earth cable.
6. Wind turbines frequency conversion tank according to claim 4 or 5, it is characterised in that: the strip groove of the IGBT bracket Lateral surface in shape structure away from the side wall of the front panel is fixedly installed with main busbar by insulator, the main busbar it is upper End is connected with the output end of IGBT module, and current transformer is run through in the lower end of the main busbar.
7. Wind turbines frequency conversion tank according to claim 6, it is characterised in that: further include current transformer installation knot Structure, the current transformer installing structure include current transformer mounting bracket, and the current transformer mounting bracket is by described Power module support is extended downwardly with the edge far from the door-plate connector up and down on mounting plate, the Current Mutual Inductance Device mounting bracket is fixedly installed with current transformer on the downside of the surface of the front panel, and current transformer is and main busbar What is be arranged in a one-to-one correspondence is multiple.
8. Wind turbines frequency conversion tank according to claim 7, it is characterised in that: it further include wire casing mounting structure, it is described Wire casing mounting structure includes wire casing mounting surface, the wire casing mounting surface by the current transformer mounting bracket towards front panel Surface constitute, the wire casing is fixed by screws on the wire casing mounting surface;The wire casing mounting structure further includes threading hole, Power module support mounting plate, IGBT bracket bar shaped groove-like structure slot bottom and wire casing mounting surface on be respectively equipped with threading Hole, and threading hole is spaced multiple along IGBT stent length direction.
9. Wind turbines frequency conversion tank according to any one of claim 1 to 8, it is characterised in that: further include heat dissipation knot Structure, the radiator structure include exhaust fan and vent;The exhaust fan is fixedly mounted on the medial surface of the lower panel and leads to It crosses outside air inlet hole and cabinet and be connected to, and be used for will be in the air dispatch to cabinet outside cabinet for the exhaust fan;The vent is set to described The upper section of top panel.
10. Wind turbines frequency conversion tank according to claim 9, it is characterised in that: the radiator structure further includes upper The module heat dissipating mouth of corresponding with each IGBT module position setting on panel, part on each IGBT module shell was by should Module heat dissipating mouth is exposed outside cabinet body.
CN201811162972.5A 2018-09-30 2018-09-30 A kind of Wind turbines frequency conversion tank Pending CN109026529A (en)

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CN201811162972.5A CN109026529A (en) 2018-09-30 2018-09-30 A kind of Wind turbines frequency conversion tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811162972.5A CN109026529A (en) 2018-09-30 2018-09-30 A kind of Wind turbines frequency conversion tank

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Family Applications (1)

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CN201811162972.5A Pending CN109026529A (en) 2018-09-30 2018-09-30 A kind of Wind turbines frequency conversion tank

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Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110350586A (en) * 2019-07-29 2019-10-18 重庆科凯前卫风电设备有限责任公司 Wind turbines all-in-one machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110350586A (en) * 2019-07-29 2019-10-18 重庆科凯前卫风电设备有限责任公司 Wind turbines all-in-one machine

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