CN202364106U - Power device for frequency converter - Google Patents
Power device for frequency converter Download PDFInfo
- Publication number
- CN202364106U CN202364106U CN2011205364824U CN201120536482U CN202364106U CN 202364106 U CN202364106 U CN 202364106U CN 2011205364824 U CN2011205364824 U CN 2011205364824U CN 201120536482 U CN201120536482 U CN 201120536482U CN 202364106 U CN202364106 U CN 202364106U
- Authority
- CN
- China
- Prior art keywords
- power
- frequency converter
- power amplifier
- radiator
- amplifier board
- 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.)
- Expired - Lifetime
Links
Landscapes
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model provides a power device for a frequency converter. The power device for the frequency converter comprises a filtering and capacitor device, a power board (1) and a radiating and cooling device. The power device has the advantages of small size, good radiating effect and excellent electrical performance.
Description
Technical field
The utility model belongs to frequency converter internal components layout field.
Background technology
Just towards improving power density, the direction of dwindling the volume of frequency converter develops frequency converter of today.Can in identical cabinet, lay more frequency converter because the frequency converter that volume is littler just means, or the used place of the frequency converter of equivalent amount is littler, saves and settle cost.But frequency converter is a kind of electric equipment of forceful electric power, and can produce great amount of heat at work, if reduce volume simply, can cause problems such as decline and the heat dispersion of electric property be bad.
Summary of the invention
The utility model technical problem to be solved is: a kind of power device that is used for frequency converter is provided, and this device volume is less, good heat dissipation effect, and electric property is excellent.
The technical scheme that the utility model adopted is: a kind of power device that is used for frequency converter comprises filtering and capacitive means, power amplifier board and heat radiation and cooling device from top to bottom successively.
Described device, filtering and capacitive means comprise the capacitor board and the filter band of interconnection, and capacitor board links to each other with power amplifier board, and filter band also is connected with power amplifier board through support.
Described device, filter band is provided with common mode inductance, common mode inductance also with capacitor board on closely staggered the arranging of bus capacitor.
Described device, power amplifier board is provided with power device, and the radiating surface of power device is close to heat radiation and cooling device.
Described device, heat radiation and cooling device comprise fan, radiator and direct current reactor successively, and power amplifier board contacts with radiator, and the air-out direction of fan is corresponding with the air channel of radiator, and direct current reactor is arranged on by the radiator air outlet.
The advantage of the utility model: the utility model volume is less, good heat dissipation effect, and electric property is excellent, and the connection configuration signal is succinctly smooth, disturbs less.
Description of drawings
Fig. 1 is frequency converter internal power device layout figure.
Among the figure, 1: power amplifier board; 2: direct current reactor; 3: power device; 4: radiator; 5: fan; 6: capacitor board; 7: the three-phase common mode inductance; 8: filter band.
Embodiment
The utility model is rationally placed each power section through transducer power part installation function is divided, and makes the electric signal route succinctly smooth, improves space availability ratio, and the electric property requirement of the electric requirement and the frequency converter of safety is satisfied in assurance simultaneously.
The power section of frequency converter is made up of main power section, buffer capacitor part, EMC (electromagnetic compatibility) filtering part, radiator, direct current reactor, fan in the utility model.
Power amplifier board is the core of frequency converter master power section, and power semiconductor, output current sample circuit, switching power circuit, inverter output terminal are all on this piece PCB (printed circuit board (PCB)) plate.Its function is with the output that exchanges that is transformed to different frequency and amplitude from the industrial frequency AC input of EMC filtering part, for control board various Control Parameter is provided simultaneously.
The core of buffer capacitor part is a capacitor board, has the dc bus of frequency converter to support the electric capacity and the buffer circuit that powers on thereof above.Its function is to be the buffering that energy exchange between main power section and the EMC filtering part provides an energy.
Filter band is the core of EMC filtering part.Frequency converter ac input division branch and common mode thereof and differential mode filter circuit are arranged above, mainly form by input terminal, differential mode filter capacitor, common mode filtering inductance, common mode filtering electric capacity.It will carry out various EMC filtering from the power-frequency voltage of electrical network, deliver to main power section then.
Radiator is installed in chassis base inside.Fan is installed in a side of chassis base, and its air-out direction is facing to the air channel of radiator.Direct current reactor also is installed in chassis base inside, at the afterbody of radiator air passage.
Power amplifier board is placed on the top of chassis base, and its power device fits tightly with its inner radiator through chassis base upper surface hole position is in the same place.
Capacitor board becomes 90 ° of vertical placements with power amplifier board, two boards connects through row's metal terminal of edges of boards, and these metal terminals not only play the connection fixation, also are the terminals that power amplifier board and capacitor board are electrically connected simultaneously.
Filter band above power amplifier board, parallel placement with power amplifier board.Device on the filter band entirely towards power amplifier board, is fixed on the support around the plank except that input terminal, and four jiaos of support then are fixed on four jiaos of power amplifier board.Also be fixedly connected between capacitor board and filter band simultaneously through metal terminal.
Common mode inductance on the filter band and electric capacity and capacitor board Up Highway UHW electric capacity are closely staggered arranges, and has filled the inner space of the rectangle that filter band, power amplifier board, capacitor board constitute jointly.
This frequency converter layout is characterised in that the frequency converter internal circuit is divided into main power section, buffer capacitor part, EMC filtering part by function.
This frequency converter layout is characterised in that three funtion parts constitute power section.Through locking each other, constitute a firm rectangular configuration between three planks of three funtion parts, also realized the electrical link between each plate simultaneously.Electric signal path between them is clear succinct, and the components and parts between the various piece on each plate utilize the rectangle volume inside fully.
This frequency converter layout is characterised in that fan, radiator, direct current reactor are arranged in order in chassis base inside, and direct current reactor is at the afterbody of frequency converter air outlet, and they constitute cooling segment, and isolates with the power section of top.
Below in conjunction with accompanying drawing the utility model is detailed further.As shown in Figure 1, this frequency converter comprises power amplifier board 1, direct current reactor 2, radiator 4, fan 5, capacitor board 6, filter band 8.
The major function of power amplifier board 1 is to utilize power device 3 to carry out variable power, will become the out-put supply of different amplitudes and frequency from the input common frequency power network power supply of filter band 8, offers outside load equipment.Simultaneously various detected semaphores are delivered to outside control board, and it also provides working power for whole frequency converter, so power amplifier board is the core of whole frequency converter.Power device 3 is welded on the power amplifier board, its radiating surface held against heat sink 4.
The effect of filter band 8 provides and exchanges input, and cooperates filter capacitor that the High-frequency Interference in the input AC electricity is carried out filtering through three-phase common mode inductance 7.Three-phase alternating-current supply after filtering is accomplished is sent to the power amplifier board 1 of its below.
The effect of capacitor board 6 is that the bus capacitor above utilizing carries out energy snubber for the power device on the power amplifier board.
Frequency converter is in operation, and power device 3 can produce great amount of heat.These heats spread through radiator 4, and fan 5 cold air that frequency converter is outside is sent in the air channel of radiator 4 simultaneously, and radiator is cooled off.During operate as normal; The temperature of direct current reactor 2 is the highest in inner each device of frequency converter; Therefore place it in the afterbody of radiator air passage; Its heat just can not have influence on the radiating effect of 4 pairs of power devices 3 of radiator like this, and the wind that comes out through radiator can also carry out certain cooling to direct current reactor 2.
The cooling system that fan 5, radiator 4, direct current reactor 2 constitute is arranged in the bottom of frequency converter, can other electronic devices and components of top not impacted.Power amplifier board 1 above cooling system, 1 one-tenth 90 ° of vertical fixing of capacitor board 6 and power amplifier board, the parallel placement of filter band 8 with power amplifier board, fixing with capacitor board 6 respectively with power amplifier board 1.
Claims (5)
1. a power device that is used for frequency converter is characterized in that: comprise filtering and capacitive means, power amplifier board (1) and heat radiation and cooling device from top to bottom successively.
2. device according to claim 1 is characterized in that: filtering and capacitive means comprise the capacitor board (6) and the filter band (8) of interconnection, and capacitor board (6) links to each other with power amplifier board (1), and filter band (8) also is connected with power amplifier board (1) through support.
3. device according to claim 2 is characterized in that: filter band (8) is provided with common mode inductance (7), common mode inductance (7) also with capacitor board (6) on closely staggered the arranging of bus capacitor.
4. device according to claim 1 is characterized in that: power amplifier board (1) is provided with power device (3), and the radiating surface of power device (3) is close to heat radiation and cooling device.
5. according to device according to claim 1; It is characterized in that: heat radiation and cooling device comprise fan (5), radiator (4) and direct current reactor (2) successively; Power amplifier board (1) contacts with radiator (4); The air-out direction of fan (5) is corresponding with the air channel of radiator (4), and direct current reactor (2) is arranged on by radiator (4) air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205364824U CN202364106U (en) | 2011-12-19 | 2011-12-19 | Power device for frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205364824U CN202364106U (en) | 2011-12-19 | 2011-12-19 | Power device for frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202364106U true CN202364106U (en) | 2012-08-01 |
Family
ID=46575262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205364824U Expired - Lifetime CN202364106U (en) | 2011-12-19 | 2011-12-19 | Power device for frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202364106U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104638944A (en) * | 2015-02-16 | 2015-05-20 | 阳光电源股份有限公司 | Inverter |
| CN105720811A (en) * | 2014-12-01 | 2016-06-29 | 中车大连电力牵引研发中心有限公司 | Flat-mounted converter cabinet for light rail vehicles |
| CN108649775A (en) * | 2018-05-25 | 2018-10-12 | 广东美的暖通设备有限公司 | frequency converter and air conditioner |
-
2011
- 2011-12-19 CN CN2011205364824U patent/CN202364106U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720811A (en) * | 2014-12-01 | 2016-06-29 | 中车大连电力牵引研发中心有限公司 | Flat-mounted converter cabinet for light rail vehicles |
| CN105720811B (en) * | 2014-12-01 | 2018-09-28 | 中车大连电力牵引研发中心有限公司 | Light rail vehicle flat placed type converter cabinet |
| CN104638944A (en) * | 2015-02-16 | 2015-05-20 | 阳光电源股份有限公司 | Inverter |
| CN104638944B (en) * | 2015-02-16 | 2017-10-17 | 阳光电源股份有限公司 | A kind of inverter |
| CN108649775A (en) * | 2018-05-25 | 2018-10-12 | 广东美的暖通设备有限公司 | frequency converter and air conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Caponet et al. | Low stray inductance bus bar design and construction for good EMC performance in power electronic circuits | |
| CN103078471B (en) | Power module and current converter | |
| US9019731B2 (en) | High-power medium-voltage drive power cell having power elements disposed on both sides of base plate | |
| US11876520B1 (en) | Method and apparatus for delivering power to semiconductors | |
| US11958372B2 (en) | Device for bi-directional power conversion and charging for use with electric vehicles | |
| CN110120736B (en) | Water-cooling power supply module | |
| US10312801B2 (en) | High power density inverter (II) | |
| CN104201867B (en) | Three-level IGBT power cabinet based on heat pipe radiator | |
| CN105207498A (en) | High-voltage DC transmission converter valve single-row valve tower | |
| CN106953502B (en) | Electric energy router | |
| CN202364106U (en) | Power device for frequency converter | |
| Alizadeh et al. | Busbar design for distributed DC-link capacitor banks for traction applications | |
| Zhang et al. | Near magnetic field emission analysis for igbt and sic power modules | |
| Pellitteri et al. | A prototypal PCB board for the EMI characterization of SiC-based innovative switching devices | |
| CN208078908U (en) | A kind of locomotive unsteady flow power cell | |
| CN114006532B (en) | Current transformer | |
| CN111933410B (en) | Multi-module multi-winding high-frequency transformer assembly and system with ventilation cooling structure | |
| CN205356117U (en) | Mounting structure of converter | |
| Rajagopal | Design of 1.7 kV SiC MOSFET Switching-Cells for Integrated Power Electronics Building Block (iPEBB) | |
| CN107911033A (en) | Optimize the design method and locomotive unsteady flow power cell of main circuit totality stray inductance | |
| CN208797779U (en) | Electrically-controlled component and electrical equipment | |
| Sewergin | Design challenges and solutions for the practical application of SiC power modules: exemplified by an automotive dc-dc converter | |
| CN209516901U (en) | A kind of magnetic element transformer and power semiconductor assembly | |
| Gupta et al. | A DC planar bus bar of high-frequency power converter with enhanced current distribution | |
| CN105186532A (en) | Main circuit module of static var generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120801 |