CN204178835U - A kind of vertical type high-power frequency conversion braking resistor cubicle - Google Patents
A kind of vertical type high-power frequency conversion braking resistor cubicle Download PDFInfo
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- CN204178835U CN204178835U CN201420688488.7U CN201420688488U CN204178835U CN 204178835 U CN204178835 U CN 204178835U CN 201420688488 U CN201420688488 U CN 201420688488U CN 204178835 U CN204178835 U CN 204178835U
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Abstract
The utility model discloses a kind of vertical type high-power frequency conversion braking resistor cubicle, comprise cabinet, resistance divide cabinet, transition air channel and blower fan, blower fan divides cabinet to be connected by transition air channel and resistance, in described cabinet, upper position has installed bracing frame, installs resistance and divide cabinet, install transition air channel and blower fan below above bracing frame; Air intake passage is left between described blower fan and bottom of cabinet bulk.Described cabinet comprises cabinet skeleton, side cover plate, back shroud, left front door, right front door and net cover board.The utility model improves the power of brake resistance greatly, and resistive band adopts belt, and very thin (within 2mm), radiating effect is very good.This brake resistance is vertical, and cabinet skeleton has bracing frame, and whole device is linked together closely, and resistance divides cabinet, transition air channel and blower fan etc. to be all placed in cabinet, and structure closely.The utility model structure is simple; Facilitate wiring, at ordinary times M R, and good looking appearance.
Description
Technical field
The utility model relates to resistive technologies field.
Background technology
Along with the develop rapidly of power electronic technology, frequency control is with its high efficiency, and High Power Factor, and the speed governing of excellence and open the plurality of advantages such as braking ability, slowly instead of former DC speed regulation.
In frequency conversion speed-adjusting system, deceleration be by progressively reducing given frequency to realize, frequency reduce moment, the synchronous speed of motor declines thereupon, and due to machinery inertial, the rotor speed of motor does not become.When synchronous speed is less than rotor speed; the phase place of rotor current almost changes 180 degree, and motor becomes generating state from motoring condition, and a large amount of mechanical kinetic energy and gravitational potential energy are converted into electric energy; this part electric energy consumes with RSET usually, thus carries out overvoltage protection to frequency converter.The radiating effect of existing brake resistor for frequency converter is not good, have impact on the serviceability of brake resistance.
Existing frequency conversion brake resistance power is little, and radiating effect is not good.Frequency conversion brake resistance as existing in one circumferentially evenly offers multiple through hole with length direction on earthenware, the outer wall of earthenware is wound with corrugated resistive band, the two ends of earthenware are respectively provided with a retainer ring, two retainer rings are respectively provided with a binding post, the two ends of corrugated resistive band are separately fixed on two binding posts.This resistor power is low, and radiating effect is not fine, and installs also inconvenient.
Below the domestic existing patented technology of part:
1, for the brake resistance of frequency converter, application number is CN201310375153.X.
2, brake resistor for frequency converter, application number is CN201310374978.X.
3, for a horizontal type high-power forced air cooling braking resistor for drilling equipment, application number is CN201320701683.4.
4, a braking resistance for orbit traffic locomotive, application number is CN200720063594.6.
5, a locomotive resistance braking erecting device, application number is CN201320285092.3.
6, a high-voltage load resistor bracket, application number is CN201020547176.6.
7, rail traffic vehicles and an energy absorption resistance device thereof, application number is CN201320165244.6.
8, locomotive traking resistance for railway, application number is CN200620079314.6.
9, a resistance card clamping structure, application number is CN201120391117.9.
10, Bidirectional notch-type cleat brake resistor for locomotive, application number is CN98230214.2.
Utility model content
Technical problem to be solved in the utility model is, provides the vertical type high-power frequency conversion braking resistor cubicle that a kind of fail safe is good, facilitate wiring, M R.
The technical solution of the utility model is: a kind of vertical type high-power frequency conversion braking resistor cubicle, comprise cabinet, resistance divide cabinet, transition air channel and blower fan, blower fan divides cabinet to be connected by transition air channel and resistance, in described cabinet, upper position has installed bracing frame, installs resistance and divide cabinet, install transition air channel and blower fan below above bracing frame; Air intake passage is left between described blower fan and bottom of cabinet bulk.
Described cabinet comprises cabinet skeleton, side cover plate, back shroud, left front door, right front door and net cover board, described side cover plate is arranged on the both sides of cabinet skeleton, back shroud is arranged on after cabinet skeleton, left front door and right front door are arranged on the left side before cabinet skeleton and the right respectively, and net cover board is arranged on the end face of cabinet skeleton; Described net cover board establishes some mesh, and the bottom of described side cover plate, back shroud, left front door, right front door is equipped with some air admission holes; Four angles at described cabinet top are all provided with lifting bolt; Support frame as described above is connected on cabinet skeleton.
Described blower fan adopts axial flow blower; Divide that the bottom opening of cabinet is connected with resistance for square air outlet, connect with the flange face of blower fan for circular air inlet below transition air channel above described transition air channel.
Busbar and the master clamp for fixing busbar are also installed in described cabinet.
Described resistance divides cabinet to comprise cuboid and divides cabinet, transition busbar and be arranged on more than two resistance units in point cabinet side by side, and described more than two resistance units are connected in series by transition busbar; Before described point of cabinet, the left side, the right side, be respectively front end panel, rear bearing sheet, left plate, right plate, upper flange and lower flange above and below below; Described column is arranged on the outside of left plate and right plate.
Described resistance unit comprises the cleat insulator of resistive band combination, screw rod, fixed block, band centre bore; Described screw rod and resistive band combination are installed in point cabinet, and the two ends of screw rod are connected on front end panel and rear bearing sheet, and screw rod is provided with some layers, and every layer comprises more than two screw rods; Resistive band combination is provided with some layers, and be arranged on respectively on screw rod and be also sequentially connected in series by connecting busbar, every layer of resistive band combination, each resistive band combination comprises a resistive band and is connected to the lead-out wire at resistive band two ends; Described resistive band is all suppressed with reinforcement; Described cleat insulator is sleeved on screw rod, described cleat insulator comprises one side cleat insulator and two-sided cleat insulator, topmost with the bottom screw rod being suit one side cleat insulator, middle screw rod is set with two-sided cleat insulator, the one side of one side cleat insulator, two-sided cleat insulator above and be equipped with some the grooves for setting-in resistive band below, described resistive band is inlaid in the groove of cleat insulator; Described front end panel is provided with lead-out wire and stretches out hole, described lead-out wire stretches out hole through lead-out wire and exposes outside front end panel, and the lead-out wire of described some layers of resistive band combination is connected by connecting busbar and some layers of resistive band combination are connected from top to bottom successively; Described front end panel is provided with fixing hole and screw rod stretches out hole, fixed hole position stretches out near the both sides in hole in screw rod, described fixed block is provided with two pins, square opening is provided with in the middle part of fixed block, two pins of described fixed block are inserted in fixing hole, square opening in the middle part of fixed block just stretches out hole to screw rod, one end of described screw rod is provided with pin-and-hole for installing pin, the other end is provided with screw thread, described screw rod is square screw rod, one end of described square screw rod is fastened in the square opening of fixed block, and screw rod is fixed on front end panel and rear bearing sheet by pin and nut.
Main parts size is arranged in cabinet by the utility model, and fail safe is good, and good looking appearance improves useful life.Adopt forced air cooling, improve the power of brake resistance greatly, and resistive band adopts belt, very thin (within 2mm), radiating effect is very good, and resistive band is suppressed reinforcement, substantially increases again intensity and the radiating effect of resistive band.This brake resistance is vertical, and cabinet skeleton has bracing frame, installs electric discharge resistance above bracing frame, transition air channel and blower fan are installed below, whole device is linked together closely, and resistance divides cabinet, transition air channel and blower fan etc. to be all placed in cabinet, and structure closely.This braking resistor is made cabinet type, has opened door (left front door and right front door), facilitate wiring, at ordinary times M R before cabinet.The utility model structure is simple; Transition air channel is the circle side of connecing, and well solves the installation question that blower fan and resistance divide cabinet.Adopt axial flow blower, whole resistance device cooling effectiveness is very high.Net cover board is equipped with on top with cabinet, and hot-air is directly discharged from net cover board, prevents again foreign matter from falling into resistance and divides in cabinet.Cabinet is installed master clamp, has secured busbar firmly, wiring also unusual aspect.
Accompanying drawing explanation
Fig. 1 is the whole structure figure of the utility model vertical type high-power frequency conversion braking resistor cubicle.
Fig. 2 is the enabling schematic diagram of the utility model vertical type high-power frequency conversion braking resistor cubicle.
Fig. 3 is the structural representation (explosive view) of the utility model vertical type high-power frequency conversion braking resistor cubicle.
Fig. 4 is the structural representation (explosive view) that resistance in the utility model divides cabinet.
In figure: 1, side cover plate, 2, back shroud, 3, lifting bolt, 4, net cover board, 5, bracing frame, 6, cabinet skeleton, 7, blower fan, 8, busbar, 9, master clamp, 10 transition air channels, 11, resistance divides cabinet, 12, left front door, 13, right front door, 14, column, 15, left plate, 16, rear bearing sheet, 17, one side cleat insulator, 18, upper flange, 19, two-sided cleat insulator, 20, resistive band combination, 21, fixed block, 22, front end panel, 23, lower flange, 24, connect busbar, 25, transition busbar.
Embodiment
As shown in Figure 1 to Figure 3, a kind of vertical type high-power frequency conversion braking resistor cubicle, comprise cabinet, resistance divide cabinet 11, transition air channel 10 and blower fan 7, blower fan divides cabinet to be connected by transition air channel and resistance, in described cabinet, upper position has installed bracing frame 5, installs resistance and divide cabinet, install transition air channel and blower fan below above bracing frame; Air intake passage is left between described blower fan and bottom of cabinet bulk.Described cabinet comprises cabinet skeleton 6, side cover plate 1, back shroud 2, left front door 12, right front door 13 and net cover board 4, described side cover plate is arranged on the both sides of cabinet skeleton, back shroud is arranged on after cabinet skeleton, left front door and right front door are arranged on the left side before cabinet skeleton and the right respectively, and net cover board is arranged on the end face of cabinet skeleton; Described net cover board establishes some mesh, and the bottom of described side cover plate, back shroud, left front door, right front door is equipped with some air admission holes; Four angles at described cabinet top are all provided with lifting bolt 3; Support frame as described above is connected on cabinet skeleton.Busbar 8 and the master clamp 9 for fixing busbar are also installed in described cabinet.Described blower fan adopts axial flow blower; Divide that the bottom opening of cabinet is connected with resistance for square air outlet, connect with the air outlet of blower fan for circular air inlet below transition air channel above described transition air channel.
Cabinet skeleton is provided with bracing frame, well solves the installation question that resistance divides cabinet, transition air channel, blower fan.One end, transition air channel is square, and one end is circular, well solves the problem that 7 blower fans are connected with 11 resistance.Resistance divides cabinet, transition air channel, blower fan, busbar to be all arranged on inside cabinet, and do not have wiring to leak outside, unfailing performance is high, and outward appearance is beautiful.Busbar divides face cashier's office in a shop to extract from resistance, is fixed by master clamp, and master clamp is insulating material.Serve fixing and insulating effect, solve the problem of insufficient strength during wiring bus bar.Two side cover plates in left and right on cabinet skeleton, and back shroud, left front door, right front door bottom all have air admission hole, cooling-air enters through these air admission holes, and can not cause negative pressure.Cabinet skeleton is equipped with net cover board, and cooling-air is through blower fan, transition air channel thus divide cabinet to cool to resistance, and hot-air is directly discharged from net cover board.Left front door of the present utility model, right front door are equipped with door latch, can directly open, aspect regular maintenance.Cabinet skeleton and cover plate divide cabinet to be wrapped in the inside resistance, and make resistance divide cabinet surface high-temp can not be directly transferred on cabinet, security performance improves greatly.
As shown in Figure 4, described resistance divides cabinet to comprise cuboid and divides cabinet, column 14, transition busbar 25 and be arranged on more than two resistance units in point cabinet side by side, and described more than two resistance units are connected in series by transition busbar; Before described point of cabinet, the left side, the right side, be respectively front end panel 22, rear bearing sheet 16, left plate 15, right plate, upper flange 18 and lower flange 23 above and below below.Described resistance unit comprises the cleat insulator of resistive band combination 20, screw rod, fixed block 21, band centre bore; Described screw rod and resistive band combination are installed in point cabinet, and the two ends of screw rod are connected on front end panel and rear bearing sheet, and screw rod is provided with some layers, and every layer comprises more than two screw rods; Resistive band combination is provided with some layers, and be arranged on respectively on screw rod and be also sequentially connected in series by connecting busbar, every layer of resistive band combination, each resistive band combination comprises a resistive band and is connected to the lead-out wire at resistive band two ends; Described resistive band is all suppressed with reinforcement; Described cleat insulator is sleeved on screw rod, described cleat insulator comprises one side cleat insulator 17 and two-sided cleat insulator 19, topmost with the bottom screw rod being suit one side cleat insulator, middle screw rod is set with two-sided cleat insulator, the one side of one side cleat insulator, two-sided cleat insulator above and be equipped with some the grooves for setting-in resistive band below, described resistive band is inlaid in the groove of cleat insulator; Described front end panel is provided with lead-out wire and stretches out hole, described lead-out wire stretches out hole through lead-out wire and exposes outside front end panel, and the lead-out wire of described some layers of resistive band combination is connected by connecting busbar 24 and some layers of resistive band combination are connected from top to bottom successively; Described front end panel is provided with fixing hole and screw rod stretches out hole, fixed hole position stretches out near the both sides in hole in screw rod, described fixed block is provided with two pins, square opening is provided with in the middle part of fixed block, two pins of described fixed block are inserted in fixing hole, square opening in the middle part of fixed block just stretches out hole to screw rod, one end of described screw rod is provided with pin-and-hole for installing pin, the other end is provided with screw thread, described screw rod is square screw rod, one end of described square screw rod is fastened in the square opening of fixed block, and screw rod is fixed on front end panel and rear bearing sheet by pin and nut.The outside of described left plate and right plate is provided with column.
Resistance of the present utility model divides in cabinet, and screw rod adopts square screw rod, and fixes at the fixed block of screw rod two band square opening, solves the technical problem that screw rod easily rolls.Resistance divides cashier's office in a shop and all flange is housed, and installs very reliable.Resistance divides cabinet surrounding to adopt micarex, and micarex can be high temperature resistant, serves support, and insulation is heat insulation, wind-guiding four layers effect.This resistance divides cabinet to have double insulation, and first heavily insulate is cleat insulator is housed, cleat insulator good insulating between resistive band combination with screw rod, can be high temperature resistant, and second heavily insulate is. the micarex between screw rod and two flanges.This resistance divides the resistance unit in cabinet to be made up of multilayer (preferably six layers) resistive band combined serial, can reach larger resistance requirement.Adopt this resistance to divide cabinet, the technical problem requiring that resistance is large, installing space is little, resistance upper and lower surfaces are installed can be solved in prior art.During assembling, the air channel that middle formation is closed, avoids cooling-air and is dispersed into surrounding, affect other equipment inside electrical cubicle.Resistance divides each cleat insulator be set on screw rod in cabinet to be equipped with seven grooves (preferred embodiment), three cleat insulators are just equivalent to 21 insulators of the prior art, greatly reduce the adverse effect that between insulator, error is brought, solve the technical problem that resistive band in prior art is easily job-hoped, assemble very convenient.When resistance divides group to fill, again front panel is installed after first each layer resistive band being connected with lead-out wire, after lead-out wire stretches out from the long and narrow hole front panel, just outside front panel, lead-out wire can be connected with connecting busbar again, do not need the welding carrying out lead-out wire in small space, equally, transition busbar is also connect outside front panel, assembles and will facilitate many.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., be all included within protection range of the present utility model.
Claims (6)
1. a vertical type high-power frequency conversion braking resistor cubicle, comprise resistance and divide cabinet, transition air channel and blower fan, blower fan divides cabinet to be connected by transition air channel and resistance, it is characterized in that, also comprise cabinet, in described cabinet, upper position has installed bracing frame, installs resistance and divide cabinet, install transition air channel and blower fan below above bracing frame; Air intake passage is left between described blower fan and bottom of cabinet bulk.
2. vertical type high-power frequency conversion braking resistor cubicle according to claim 1, it is characterized in that, described cabinet comprises cabinet skeleton, side cover plate, back shroud, left front door, right front door and net cover board, described side cover plate is arranged on the both sides of cabinet skeleton, back shroud is arranged on after cabinet skeleton, left front door and right front door are arranged on the left side before cabinet skeleton and the right respectively, and net cover board is arranged on the end face of cabinet skeleton; Described net cover board establishes some mesh, and the bottom of described side cover plate, back shroud, left front door, right front door is equipped with some air admission holes; Four angles at described cabinet top are all provided with lifting bolt; Support frame as described above is connected on cabinet skeleton.
3. vertical type high-power frequency conversion braking resistor cubicle according to claim 1, is characterized in that, described blower fan adopts axial flow blower; Divide that the bottom opening of cabinet is connected with resistance for square air outlet, connect with the flange face of blower fan for circular air inlet below transition air channel above described transition air channel.
4. vertical type high-power frequency conversion braking resistor cubicle according to claim 1, is characterized in that, is also provided with busbar and the master clamp for fixing busbar in described cabinet.
5. vertical type high-power frequency conversion braking resistor cubicle according to claim 1, it is characterized in that, described resistance divides cabinet to comprise cuboid and divides cabinet, column, transition busbar and be arranged on more than two resistance units in point cabinet side by side, and described more than two resistance units are connected in series by transition busbar; Before described point of cabinet, the left side, the right side, be respectively front end panel, rear bearing sheet, left plate, right plate, upper flange and lower flange above and below below; Described column is arranged on the outside of left plate and right plate.
6. vertical type high-power frequency conversion braking resistor cubicle according to claim 5, is characterized in that, described resistance unit comprises the cleat insulator of resistive band combination, screw rod, fixed block, band centre bore; Described screw rod and resistive band combination are installed in point cabinet, and the two ends of screw rod are connected on front end panel and rear bearing sheet, and screw rod is provided with some layers, and every layer comprises more than two screw rods; Resistive band combination is provided with some layers, and be arranged on respectively on screw rod and be also sequentially connected in series by connecting busbar, every layer of resistive band combination, each resistive band combination comprises a resistive band and is connected to the lead-out wire at resistive band two ends; Described resistive band is all suppressed with reinforcement; Described cleat insulator is sleeved on screw rod, described cleat insulator comprises one side cleat insulator and two-sided cleat insulator, topmost with the bottom screw rod being suit one side cleat insulator, middle screw rod is set with two-sided cleat insulator, the one side of one side cleat insulator, two-sided cleat insulator above and be equipped with some the grooves for setting-in resistive band below, described resistive band is inlaid in the groove of cleat insulator; Described front end panel is provided with lead-out wire and stretches out hole, described lead-out wire stretches out hole through lead-out wire and exposes outside front end panel, and the lead-out wire of described some layers of resistive band combination is connected by connecting busbar and some layers of resistive band combination are connected from top to bottom successively; Described front end panel is provided with fixing hole and screw rod stretches out hole, fixed hole position stretches out near the both sides in hole in screw rod, described fixed block is provided with two pins, square opening is provided with in the middle part of fixed block, two pins of described fixed block are inserted in fixing hole, square opening in the middle part of fixed block just stretches out hole to screw rod, one end of described screw rod is provided with pin-and-hole for installing pin, the other end is provided with screw thread, described screw rod is square screw rod, one end of described square screw rod is fastened in the square opening of fixed block, and screw rod is fixed on front end panel and rear bearing sheet by pin and nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420688488.7U CN204178835U (en) | 2014-11-18 | 2014-11-18 | A kind of vertical type high-power frequency conversion braking resistor cubicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420688488.7U CN204178835U (en) | 2014-11-18 | 2014-11-18 | A kind of vertical type high-power frequency conversion braking resistor cubicle |
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| Publication Number | Publication Date |
|---|---|
| CN204178835U true CN204178835U (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420688488.7U Active CN204178835U (en) | 2014-11-18 | 2014-11-18 | A kind of vertical type high-power frequency conversion braking resistor cubicle |
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| CN (1) | CN204178835U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216806A (en) * | 2015-10-28 | 2016-01-06 | 南车资阳机车有限公司 | The vertical rheostatic brake aeration structure of a kind of locomotive |
| CN106364329A (en) * | 2016-08-29 | 2017-02-01 | 中车大连机车车辆有限公司 | Modular brake resistor device |
-
2014
- 2014-11-18 CN CN201420688488.7U patent/CN204178835U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216806A (en) * | 2015-10-28 | 2016-01-06 | 南车资阳机车有限公司 | The vertical rheostatic brake aeration structure of a kind of locomotive |
| CN105216806B (en) * | 2015-10-28 | 2018-03-13 | 中车资阳机车有限公司 | A kind of vertical resistive braking aeration structure of locomotive |
| CN106364329A (en) * | 2016-08-29 | 2017-02-01 | 中车大连机车车辆有限公司 | Modular brake resistor device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Zhuzhou Lukou Town Tree Hill 412007 in Hunan city of Zhuzhou Province Patentee after: Zhuzhou Zhongche AVC Cooling Technology Co. Ltd. Address before: Zhuzhou Lukou Town Tree Hill 412007 in Hunan city of Zhuzhou Province Patentee before: Zhuzhou CSR Qihong Heat Dissipation Technology Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |