CN204597765U - A kind of single tube IGBT frequency converter - Google Patents
A kind of single tube IGBT frequency converter Download PDFInfo
- Publication number
- CN204597765U CN204597765U CN201520210752.0U CN201520210752U CN204597765U CN 204597765 U CN204597765 U CN 204597765U CN 201520210752 U CN201520210752 U CN 201520210752U CN 204597765 U CN204597765 U CN 204597765U
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- China
- Prior art keywords
- frequency converter
- single tube
- circuit
- tube igbt
- radiator
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Abstract
The utility model relates to a kind of single tube IGBT frequency converter, comprise housing, be installed on the power panel on housing and master control borad, also comprise the base be arranged in housing, be installed on radiator on base, be fixedly installed in the DC fan of radiator rear end, radiator is provided with two rectifier cells, power panel is electrically connected with one end of rectifier cell, the other end electrical connection pcb board of rectifier cell, pcb board is welded with three groups of single tube IGBT in parallel in the same way, the other end of single tube IGBT evenly scribbles thermal conductive silicon and fixes on a heat sink, master control borad is for controlling the operation of frequency converter.Employing single tube IGBT substitutes the integrated IGBT by module package, reduces cost, and facilitates the replacing when single tube IGBT pipe damages, adopt independently radiator, improve the radiating effect of frequency converter, extend the useful life of frequency converter, improve the reliability of frequency converter.
Description
technical field:
The utility model relates to a kind of frequency converter, especially relates to a kind of single tube IGBT frequency converter.
background technology:
Frequency converter is as a kind of RHVC, and the control performance superior by means of it and energy-saving effect, make it be widely applied in power electronics, electric drive, Industry Control.Along with petrochemical industry, textile printing and dyeing, metallurgical papermaking, building building etc. every profession and trade improving constantly frequency converter performance requirement, high controllability, practicality and reliability have become the large index weighing frequency converter performance.
Universal frequency converter is mostly module frequency converter, and especially Converting Unit adopts the module that overall package is good.This frequency converter cost is high, if a single tube IGBT in module has broken will change whole module, adds replacement cost, wastes other the intact single tube IGBT in module.
summary of the invention:
The purpose of this utility model is to solve the deficiencies in the prior art, utilizes the single tube IGBT alternative package module of technical maturity, thus improves quality, and reduce cost, particular content is as follows:
A kind of single tube IGBT frequency converter, comprise housing, be installed on the power panel on housing and master control borad, it is characterized in that: also comprise the base be arranged in housing, be installed on radiator on base, be fixedly installed in the DC fan of radiator rear end, radiator is provided with two rectifier cells, described power panel is electrically connected with one end of rectifier cell, the other end electrical connection pcb board of described rectifier cell, described pcb board is welded with three groups of single tube IGBT in parallel in the same way, the other end of described single tube IGBT evenly scribbles thermal conductive silicon and fixes on a heat sink, described master control borad is for controlling the operation of frequency converter.
Wherein, described pcb board is also provided with charging circuit and filter circuit, described charging circuit is made up of charging resistor and contactor, and charging resistor is in parallel with contactor; Described filter circuit comprises two groups of filter capacitor groups in parallel in the same way; In the process that frequency converter powers on, electric current is through charging resistor to the capacitor charging of filter capacitor group, and after charging, contactor adhesive, charging resistor is shorted.
Wherein, described power panel and control board form control loop, described control loop comprise for provide the switching power circuit of stabilized power supply, for control single tube IGBT conducting drive circuit, for the testing circuit of amplification ratio compared with sampled current signals, the protective circuit for indicating alarm and the governor circuit for trigger switch power circuit, drive circuit, testing circuit and protective circuit.
The utility model beneficial effect is compared with prior art: the utility model adopts the combination replacement of single tube IGBT by the integrated IGBT of module package, reduces cost, and facilitates the replacing when single tube IGBT pipe damages; Adopt independently radiator, improve the radiating effect of frequency converter greatly, extend the useful life of frequency converter, improve the reliability of frequency converter.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the utility model private side view;
Fig. 3 is circuit theory diagrams of the present utility model.
embodiment:
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As depicted in figs. 1 and 2, a kind of single tube IGBT frequency converter, comprise housing 1, be arranged at the base 2 in housing 1, be installed on the power panel 3 on housing 1 and master control borad 4, wherein master control borad 4 is for controlling the operation of frequency converter, base 2 is provided with independently radiator 5, the DC fan 6 that radiator 5 rear end is installed with, radiator 5 is provided with two rectifier cells 7, power panel 3 is electrically connected with one end of rectifier cell 7, the other end electrical connection pcb board 8 of rectifier cell 7, pcb board 8 is welded with three groups of single tube IGBT9 in parallel in the same way, wherein the other end of single tube IGBT9 evenly scribbles thermal conductive silicon and is fixed on radiator 5.
The utility model He always adopts independently radiator 5, coordinates thermal conductive silicon and DC fan 6 can improve the efficiency of frequency converter heat radiation.
As shown in Figure 3, pcb board 8 is also provided with charging circuit 810 and filter circuit 820, charging circuit 810 is made up of charging resistor 811 and contactor 812, and charging resistor 811 is with to contact 812 devices in parallel; Filter circuit 820 comprises two groups of filter capacitor groups in parallel in the same way; In the process that frequency converter powers on, electric current is through charging resistor to the capacitor charging of filter capacitor group, and after charging, contactor 812 adhesive, charging resistor 811 is shorted, and namely frequency converter completes and powers on.
The electric capacity of filter capacitor group adopts jumbo electrochemical capacitor, the dc point of pulsation can be become mild, eliminates peak voltage.
Wherein, three groups of single tube IGBT in parallel in the same way constitute the alternating current inverter circuit that direct current can be changed into amplitude and frequency-adjustable, substitute the integrated IGBT by module package, facilitate replacing when single tube IGBT damages by single tube IGBT.
Power panel 3 and control board 4 form control loop, and control loop comprises switching power circuit, for giving other circuit with stable power supplys; Drive circuit, for controlling single tube IGBT conducting; Testing circuit, for amplification ratio comparatively sampled current signals; Protective circuit, for indicating alarm; Governor circuit, for trigger switch power circuit, drive circuit, testing circuit and protective circuit.
Preferably, can also arrange human and machine interface unit on frequency converter, person easy to use observes the practical situation of frequency converter, and sets the operation of frequency converter or shut down parameter.
The utility model adopts the integrated IGBT of combination replacement by module package of single tube IGBT, reduces cost, and facilitates the replacing when single tube IGBT damages; Adopt independently radiator, improve the radiating effect of frequency converter greatly, extend the useful life of frequency converter, improve the reliability of frequency converter.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (3)
1. a single tube IGBT frequency converter, comprise housing, be installed on the power panel on housing and master control borad, it is characterized in that: a kind of single tube IGBT frequency converter, comprise housing, be installed on the power panel on housing and master control borad, it is characterized in that: also comprise the base be arranged in housing, be installed on the radiator on base, be fixedly installed in the DC fan of radiator rear end, radiator is provided with two rectifier cells, described power panel is electrically connected with one end of rectifier cell, the other end electrical connection pcb board of described rectifier cell, described pcb board is welded with three groups of single tube IGBT in parallel in the same way, the other end of described single tube IGBT evenly scribbles thermal conductive silicon and fixes on a heat sink, described master control borad is for controlling the operation of frequency converter.
2. a kind of single tube IGBT frequency converter according to claim 1, it is characterized in that: described pcb board is also provided with charging circuit and filter circuit, described charging circuit is made up of charging resistor and contactor, and charging resistor is in parallel with contactor; Described filter circuit comprises two groups of filter capacitor groups in parallel in the same way; In the process that frequency converter powers on, electric current is through charging resistor to the capacitor charging of filter capacitor group, and after charging, contactor adhesive, charging resistor is shorted.
3. a kind of single tube IGBT frequency converter according to claim 1; it is characterized in that: described power panel and control board form control loop, described control loop comprise for provide the switching power circuit of stabilized power supply, for control single tube IGBT conducting drive circuit, for the testing circuit of amplification ratio compared with sampled current signals, the protective circuit for indicating alarm and the governor circuit for trigger switch power circuit, drive circuit, testing circuit and protective circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520210752.0U CN204597765U (en) | 2015-04-09 | 2015-04-09 | A kind of single tube IGBT frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520210752.0U CN204597765U (en) | 2015-04-09 | 2015-04-09 | A kind of single tube IGBT frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204597765U true CN204597765U (en) | 2015-08-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520210752.0U Expired - Fee Related CN204597765U (en) | 2015-04-09 | 2015-04-09 | A kind of single tube IGBT frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204597765U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110191620A (en) * | 2019-06-04 | 2019-08-30 | 广州炜尔电子有限公司 | A kind of frequency converter in water system |
-
2015
- 2015-04-09 CN CN201520210752.0U patent/CN204597765U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110191620A (en) * | 2019-06-04 | 2019-08-30 | 广州炜尔电子有限公司 | A kind of frequency converter in water system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20160409 |