CN202495870U - Modular converter - Google Patents
Modular converter Download PDFInfo
- Publication number
- CN202495870U CN202495870U CN2012200127598U CN201220012759U CN202495870U CN 202495870 U CN202495870 U CN 202495870U CN 2012200127598 U CN2012200127598 U CN 2012200127598U CN 201220012759 U CN201220012759 U CN 201220012759U CN 202495870 U CN202495870 U CN 202495870U
- Authority
- CN
- China
- Prior art keywords
- unsteady flow
- flow module
- copper bar
- radiator
- substrate
- 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 - Fee Related
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052802 copper Inorganic materials 0.000 claims abstract description 14
- 239000010949 copper Substances 0.000 claims abstract description 14
- 238000010521 absorption reaction Methods 0.000 claims abstract description 8
- 239000003990 capacitor Substances 0.000 claims abstract description 8
- 239000000758 substrate Substances 0.000 claims abstract description 8
- 238000009413 insulation Methods 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 3
- 238000004146 energy storage Methods 0.000 abstract 3
- 238000001514 detection method Methods 0.000 abstract 2
- 230000009466 transformation Effects 0.000 abstract 1
- 230000003071 parasitic effect Effects 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
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- Power Conversion In General (AREA)
Abstract
The utility model discloses a modularized converter, which comprises a substrate, and a converter module, a copper bar, an absorption capacitor, a radiator and an output current detection mutual inductor on the substrate; the converter module is connected with the absorption capacitor through a copper bar, the radiator is connected to the converter module, and the insulating plate and the energy storage capacitor set are arranged below the converter module; the insulating plate is provided with a switch relay, a discharge switch and a discharge resistor thereof; the insulating plate is provided with a fuse wire and a charging resistor; the energy storage capacitor components are divided into an upper layer and a lower layer, and the energy storage capacitors of each layer are connected in series or in parallel through copper bars; and an output current detection mutual inductor is also arranged on the current transformation module.
Description
Technical field
The utility model relates to a kind of modular current transformer.
Background technology
The device of current transformer mainly contains half control device (thyristor) and full control device (MOSFET, IGBT, IGCT etc.) at present, and uncontrollable diode is generally in order to make common rectifier.By thyristor or control routine that device forms entirely and hand over always current transformer to be divided into two types of voltage-type and current modes.The voltage-type current transformer is applicable to that adopting the contrary type full-control type device of leading, current source converter to be applicable to adopts inverse-impedance type full-control type device.The full-controlled switch current transformer also can be realized common switch regulating and controlling modes such as the control of step wave mode, pulse frequency modulated, is applied to multiple circuit conditions.
Because the limitation of aspects such as manufacture craft and converter structure design, the unsteady flow module is general and the parasitic capacitance spacing distance is far away, produces stray inductance thus, influences the unsteady flow effect, increases loss.Leakage current enters into power consumption equipments such as cable, motor winding easily through parasitic capacitance.In order to reduce current ripples that electronic switching device causes and noise etc., oneself improves the switching speed of element, and also oneself improves voltage change ratio, but has also drawn relevant issues.Such as, the flip-flop of voltage to earth generates electromagnetic waves, and disturbs other electronic equipment etc.In addition, the unreasonable cabling mode of current transformer can cause that the circuit distributed constant changes, and forms standing wave and adds existing power consumption equipment to voltage surge, causes current density and magnetic density skewness simultaneously.This can produce quite high spreading out and spread out, and is added to the part winding to high voltage at the utmost point in the short time, causes winding insulation to worsen.Current transformer all must solve the heat dissipation problem that power device produces because of loss in the unsteady flow process, is operated in the temperature environment of permission to guarantee power device.Finding suitable cooling means, realize radiating mode cheaply, avoid current transformer bulky, all is the part that is worthy of consideration.
For improving above-mentioned shortcoming, can reduce switching speed, but this method has increased switching loss.Increase extra resonance or filter circuit and also can reduce influence, but increased the complexity and the cost of manufacture of current transformer.
Summary of the invention
The purpose of the utility model provides a kind of electrical distance that can shorten unsteady flow itself and parasitic capacitance, reduces the modular current transformer of stray inductance.
For realizing above-mentioned purpose, the utility model adopts following technical scheme: a kind of modular current transformer comprises that unsteady flow module, copper bar, absorption electric capacity, radiator, the output current on substrate and the substrate detects instrument transformer; Described unsteady flow module is connected with absorption electric capacity through copper bar, connects radiator on the unsteady flow module, below the unsteady flow module, is provided with insulation board and energy capacitance set; Described insulation board is provided with switch relay, discharge switch and discharge resistance thereof; Described insulation board is provided with insurance fuse and charging resistor; Described energy capacitance set is divided into two-layer up and down, passes through the copper bar serial or parallel connection between the storage capacitor of each layer; Also be provided with output current on the said unsteady flow module and detect instrument transformer.
Adopt the utility model of technique scheme; Converter module structure through innovation will absorb electric capacity and be connected with the unsteady flow module through copper bar, shorten the electrical distance of unsteady flow module and parasitic capacitance; Reduced stray inductance greatly, reduced the wastage and guarantee the power consumption equipment operate as normal.In the converter structure design, taken into full account the sense of current and cabling form, improved ubiquitous eddy current effect phenomenon and reduced consequent stray loss.Adopt the copper bar connected mode, the kelvin effect degree rational modular construction in the low mill of neck greatly makes current density and magnetic density be evenly distributed rationally, has suppressed the generation that high value is spread out and spread out, and has reduced the influence of overtension phenomenon to the winding insulating properties.In addition, the optimized modules structure has improved circuit overcurrent and overvoltage capabilities, effectively improves the power device life-span.Under the situation that does not increase the current transformer volume, realized radiating mode cheaply, make current transformer steady operation in normal temperature range.Simultaneously, look attractive in appearanceization from the front for making current transformer, positive apparent direction is except that fin place dress radiator fan, and other does not add any device.Current transformer has no sealing plate on four sides, so that ventilative heat radiation and loading and unloading.
Description of drawings
Figure l is the front view of the modular current transformer of the utility model.
Embodiment
As scheme shown in the l, a kind of modular current transformer comprises that unsteady flow module 2, copper bar 3, absorption electric capacity 4, radiator 5, the output current on substrate 1 and the substrate 1 detects instrument transformer 6; Described unsteady flow module 2 is connected with absorption electric capacity 4 through copper bar 3, connects radiator 5 on the unsteady flow module 2, below unsteady flow module 2, is provided with insulation board 7 and energy capacitance set 8; Described insulation board 7 is provided with switch relay 9, discharge switch 10 and discharge resistance 11 thereof; Described insulation board 7 is provided with insurance fuse 12 and charging resistor 13; Described energy capacitance set 8 is divided into two-layer up and down, passes through the copper bar serial or parallel connection between the storage capacitor of each layer; Also be provided with output current on the said unsteady flow module 2 and detect instrument transformer 6.
Need to prove, for the circuit connecting relation of the electric component mentioned, be technology well known to those of ordinary skill in the art in the utility model.What in addition, it will be appreciated that is, multiple modification, modification and additional embodiment all are possible, so all modification, revises and establish embodiment and all will regard as within the spirit that is in application of the present invention.
Claims (1)
1. modular current transformer is characterized in that: it comprises that unsteady flow module, copper bar, absorption electric capacity, radiator, output current on substrate and the substrate detect instrument transformer; Described unsteady flow module is connected with absorption electric capacity through copper bar, connects radiator on the unsteady flow module, below the unsteady flow module, is provided with insulation board and energy capacitance set; Described insulation board is provided with switch relay, discharge switch and discharge resistance thereof; Described insulation board is provided with insurance fuse and charging resistor; Described energy capacitance set is divided into two-layer up and down, passes through the copper bar serial or parallel connection between the storage capacitor of each layer; Also be provided with output current on the said unsteady flow module and detect instrument transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200127598U CN202495870U (en) | 2012-01-12 | 2012-01-12 | Modular converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200127598U CN202495870U (en) | 2012-01-12 | 2012-01-12 | Modular converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202495870U true CN202495870U (en) | 2012-10-17 |
Family
ID=47002082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200127598U Expired - Fee Related CN202495870U (en) | 2012-01-12 | 2012-01-12 | Modular converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202495870U (en) |
-
2012
- 2012-01-12 CN CN2012200127598U patent/CN202495870U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: YUYUANFENG TECH (SHENZHEN) CO., LTD. Assignor: Li Shengzhen Contract record no.: 2012440020314 Denomination of utility model: Modularized converter Granted publication date: 20121017 License type: Exclusive License Record date: 20121130 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| 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: 20121017 Termination date: 20170112 |