CN204068713U - Based on the charger power cell of two-tube parallel connection - Google Patents
Based on the charger power cell of two-tube parallel connection Download PDFInfo
- Publication number
- CN204068713U CN204068713U CN201420555463.XU CN201420555463U CN204068713U CN 204068713 U CN204068713 U CN 204068713U CN 201420555463 U CN201420555463 U CN 201420555463U CN 204068713 U CN204068713 U CN 204068713U
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- China
- Prior art keywords
- igbt
- bus bar
- composite bus
- radiator
- electrically connected
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Abstract
The utility model is a kind of charger power cell based on two-tube parallel connection, and comprise radiator and the copped wave portion on a heat sink of setting and rectification part, copped wave portion comprises the IGBT of two two-tube parallel connections; Radiator is also provided with the composite bus bar for being electrically connected discharge resistance, Support Capacitor, IGBT and IGBT end Absorption Capacitance, the end of radiator is provided with several electrical terminals, and the external splicing ear of composite bus bar, rectifier diode, absorption resistance and Absorption Capacitance is electrically connected with several electrical terminals.The utility model adopts modularized design, saves space, is convenient to safeguard change, and reduces maintenance cost; Adopt the IGBT of two electric pressure 1700V to carry out two-tube parallel connection, add electric pressure, increase area of dissipation, decrease power loss.
Description
Technical field
The utility model relates to locomotive charging technique field, specifically a kind of charger power cell based on two-tube parallel connection.
Background technology
Locomotive secondary power system provides DC720V power supply system to charger power cell, when switching frequency is higher, use 1200V grade IGBT or two IGBT series connection, such shortcoming is: 1) due to IGBT existence because of leakage inductance in the process of turn-on and turn-off, cause due to voltage spikes, the IGBT of 1200V electric pressure easily damages; 2) IGBT series connection, power density is larger, and power loss is large.
Charger power cell main circuit externally connects use copper bar or cable, such shortcoming is: when main circuit is externally electrically connected and uses cable or copper bar, not only connect occupy a large amount of spaces at cabling layout, connecting terminals, and workload is large when power model safeguards replacing, length consuming time, may affect locomotive normal operation.
Summary of the invention
The purpose of this utility model is to solve above-mentioned problems of the prior art, and provides a kind of charger power cell based on two-tube parallel connection.
The utility model is achieved by the following technical solution:
Based on a charger power cell for two-tube parallel connection, comprise radiator, and the copped wave portion on a heat sink of setting and rectification part; Described radiator is provided with framework, and described copped wave portion comprises IGBT, IGBT and holds Absorption Capacitance, IGBT drive plate, two discharge resistances and two Support Capacitors; Described rectification part comprises absorbing circuit and rectifier diode, and wherein said absorbing circuit comprises absorption resistance and the Absorption Capacitance of series connection; In copped wave portion, the number of IGBT is two, is also provided with the composite bus bar for being electrically connected discharge resistance, Support Capacitor, IGBT end Absorption Capacitance and IGBT on a heat sink; Two IGBT, two discharge resistances and rectifier diodes attach and arrange on a heat sink, and composite bus bar attaches and is arranged on two IGBT, and IGBT drive plate is arranged on the framework of radiator; The end of radiator is provided with several electrical terminals, and the external splicing ear of composite bus bar, rectifier diode, absorption resistance and Absorption Capacitance is electrically connected with several electrical terminals.
The circuit structure of the utility model charger power cell and principle be as shown in Figure 1:
Whole circuit is made up of copped wave portion A and rectification part B, and wherein copped wave portion A is connected with transformer C, and transformer C is connected with rectification part B again:
1) chop section
V1 and V2 is two IGBT, forms two-tube parallel single-phase inverter circuit, by the switch control rule of IGBT, is ac square wave power supply by direct voltage inversion.C1 and C2 is two Support Capacitors of the DC terminal of main circuit, is used for supporting DC loop voltage, and ensure that the fluctuation of DC loop voltage is in the scope required, the tie-point of two Support Capacitors is called the mid point of DC power supply.C3 is that IGBT holds Absorption Capacitance, i.e. IGBT overvoltage Absorption Capacitance, and when being used for absorbing IGBT shutoff, in the overvoltage that IGBT end produces, IGBT holds Absorption Capacitance to play filter function.。R1 is two discharge resistances, the i.e. discharge resistance of DC loop, two discharge resistances are integrated on a unit, after it ensures main circuit power-off, residual voltage on DC loop electric capacity is reduced to below safe voltage 50V within the time required, two Support Capacitors and discharge resistance play uniform voltage function.Entirety after two series connection is in parallel with C3 again.The direct current that "+", "-" are chop section inputs.M and ALT is that the single phase alternating current (A.C.) of chop section exports, and is connected to high frequency transformer input side.
2) rectifying part
B3 with B2 be rectifying part exchange input, B1 be direct current export.
3) control section
DRV1 is the drive circuit of IGBT, and every block drive circuit board provides two-way drive singal, drives two IGBT cell operation of inverter bridge leg, IGBT switch state signal is fed back to control unit simultaneously.
B1 is temperature detect switch, and when the temperature of power conversion unit is higher than set point, on off state converts, and sends this switching signal to control unit.
4) stacked modularized design
In order to reduce space hold, be beneficial to handling.The utility model power cell have employed stacked modularized design, and bottom is radiator, and each power device is arranged on the surface of radiator, and all parts of main circuit, by the laying of composite bus bar, link together by power device surface.The design ap-plication of composite bus bar, on the one hand, takes full advantage of space, on the other hand, reduces the stray inductance of main circuit, reduces overvoltage when IGBT turns off.
Further, described composite bus bar is "T"-shaped structure, the transverse slat of composite bus bar is provided with four for being electrically connected the first electrical connection hole of two Support Capacitors; End composite bus bar being positioned at transverse slat side is provided with three for being electrically connected the first binding post of two discharge resistances; The riser of composite bus bar is provided with four for being electrically connected the second electrical connection hole of two IGBT; The position of the next-door neighbour riser end, both sides of composite bus bar riser is upwards extended the second binding post holding Absorption Capacitance for a pair for connecting IGBT; The end of composite bus bar riser is provided with three external splicing ears, and composite bus bar is electrically connected with the electrical terminal arranged on a heat sink by external splicing ear; Composite bus bar is overrided to form by Multilayered copper plate, and is provided with insulating material between each copper coin, and the outer surface of composite bus bar is provided with polyester film; Each device in copped wave portion is electrically connected with the copper bar of different layers in composite bus bar respectively.
Described radiator is also provided with the temperature relay for detecting described power cell temperature.
The utility model is from the practical application request of locomotive accessory power supply, be that the IGBT of 1700V carries out two-tube parallel connection by electric pressure, adopt integrated modular construction, the component functions such as IGBT device, Drive Protecting Circuit, composite bus bar, circuit supporting electric capacity, overvoltage absorbing circuit, air-cooled radiator are combined, solve following aspect problem: 1) improve module voltage grade, increase area of dissipation, reduce power loss; 2) reduce system bulk, weight, and facilitate the maintenance maintenance of charger power cell.
The beneficial effects of the utility model are as follows:
1) the utility model charger power cell adopts modularized design, saves space, is convenient to safeguard change, and reduces maintenance cost.
2) the utility model charger power cell adopts the IGBT of two electric pressure 1700V to carry out two-tube parallel connection, adds electric pressure, increases area of dissipation, decrease power loss.
Accompanying drawing explanation
Fig. 1 is the circuit structure diagram of the utility model charger power cell.
Fig. 2 is the structural representation of the utility model charger power cell.
Fig. 3 is the structural representation of composite bus bar in the utility model charger power cell.
Fig. 4 is composite bus bar, IGBT and Support Capacitor scheme of installation in the utility model charger power cell.
In figure: 1-radiator, 2-IGBT drive plate, 3-Support Capacitor, 4-IGBT hold Absorption Capacitance, 5-absorption resistance, 6-Absorption Capacitance, 7-IGBT, 8-composite bus bar, 8-1-first are electrically connected hole, 8-2-first binding post, 8-3-second are electrically connected hole, 8-4-second binding post, the external splicing ear of 8-5-, 9-electrical terminal, 10-temperature relay.
Embodiment
Below in conjunction with accompanying drawing, the utility model will be further described:
As shown in Figures 1 to 4, a kind of charger power cell based on two-tube parallel connection, comprises radiator 1, and the copped wave portion be arranged on radiator 1 and rectification part; Described radiator 1 is provided with framework, and described copped wave portion comprises IGBT 7, IGBT and holds Absorption Capacitance 4, IGBT drive plate 2, two discharge resistances and two Support Capacitors 3; Described rectification part comprises absorbing circuit and rectifier diode, and wherein said absorbing circuit comprises absorption resistance 5 and the Absorption Capacitance 6 of series connection; In copped wave portion, the number of IGBT 7 is two, and radiator 1 is also provided with the composite bus bar 8 for being electrically connected discharge resistance, Support Capacitor 3, IGBT end Absorption Capacitance 4 and IGBT 7; Two IGBT, 7, two discharge resistances and rectifier diode attach and are arranged on radiator 1, and composite bus bar 8 attaches and is arranged on two IGBT 7, and IGBT drive plate 2 is arranged on the framework of radiator 1; The end of radiator 1 is provided with several electrical terminals 9, and the external splicing ear of composite bus bar 8, rectifier diode, absorption resistance 5 and Absorption Capacitance 6 is electrically connected with several electrical terminals 9.
During concrete enforcement, described composite bus bar 8 is "T"-shaped structure, the transverse slat of composite bus bar 8 is provided with four for being electrically connected the first electrical connection hole 8-1 of two Support Capacitors 3; End composite bus bar 8 being positioned at transverse slat side is provided with three for being electrically connected the first binding post 8-2 of two discharge resistances; The riser of composite bus bar 8 is provided with four for being electrically connected the second electrical connection hole 8-3 of two IGBT7; The position of the next-door neighbour end, both sides of composite bus bar 8 riser is upwards extended the second binding post 8-4 holding Absorption Capacitance 4 for a pair for connecting IGBT; The end of composite bus bar 8 riser is provided with three external splicing ear 8-5, and composite bus bar 8 is electrically connected with the electrical terminal 9 be arranged on radiator 1 by external splicing ear 8-5; Composite bus bar 8 is overrided to form by Multilayered copper plate, and is provided with insulating material between each copper coin, and the outer surface of composite bus bar 8 is provided with polyester film; Each device in copped wave portion is electrically connected with the copper bar of different layers in composite bus bar 8 respectively.
Described radiator 1 is also provided with the temperature relay 10 for detecting described power cell temperature.
Claims (3)
1., based on a charger power cell for two-tube parallel connection, comprise radiator (1), and the copped wave portion be arranged on radiator (1) and rectification part; Described radiator (1) is provided with framework, and described copped wave portion comprises IGBT(7), IGBT holds Absorption Capacitance (4), IGBT drive plate (2), two discharge resistances and two Support Capacitors (3); Described rectification part comprises absorbing circuit and rectifier diode, and wherein said absorbing circuit comprises the absorption resistance of series connection (5) and Absorption Capacitance (6); It is characterized in that: IGBT(7 in copped wave portion) number be two, radiator (1) is also provided with for being electrically connected discharge resistance, Support Capacitor (3), IGBT holds Absorption Capacitance (4) and composite bus bar IGBT(7) (8); Two IGBT(7), two discharge resistances and rectifier diode attach and be arranged on radiator (1), composite bus bar (8) attaches and is arranged on two IGBT(7) on, IGBT drive plate (2) is arranged on the framework of radiator (1); The end of radiator (1) is provided with several electrical terminals (9), and the external splicing ear of composite bus bar (8), rectifier diode, absorption resistance (5) and Absorption Capacitance (6) is electrically connected with several electrical terminals (9).
2. the charger power cell based on two-tube parallel connection according to claim 1, it is characterized in that: described composite bus bar (8) is "T"-shaped structure, the transverse slat of composite bus bar (8) being provided with four for being electrically connected the first electrical connection hole (8-1) of two Support Capacitors (3); End composite bus bar (8) being positioned at transverse slat side is provided with three for being electrically connected first binding post (8-2) of two discharge resistances; The riser of composite bus bar (8) is provided with four for being electrically connected two IGBT(7) second electrical connection hole (8-3); The position of the next-door neighbour end, both sides of composite bus bar (8) riser is upwards extended the second binding post (8-4) holding Absorption Capacitance (4) for a pair for connecting IGBT; The end of composite bus bar (8) riser is provided with three external splicing ears (8-5), and composite bus bar (8) is electrically connected with the electrical terminal (9) be arranged on radiator (1) by external splicing ear (8-5); Composite bus bar (8) is overrided to form by Multilayered copper plate, and is provided with insulating material between each copper coin, and the outer surface of composite bus bar (8) is provided with polyester film; Each device in copped wave portion is electrically connected with the copper bar of different layers in composite bus bar (8) respectively.
3. the charger power cell based on two-tube parallel connection according to claim 1 and 2, is characterized in that: described radiator (1) is also provided with the temperature relay (10) for detecting described power cell temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420555463.XU CN204068713U (en) | 2014-09-26 | 2014-09-26 | Based on the charger power cell of two-tube parallel connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420555463.XU CN204068713U (en) | 2014-09-26 | 2014-09-26 | Based on the charger power cell of two-tube parallel connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204068713U true CN204068713U (en) | 2014-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420555463.XU Expired - Fee Related CN204068713U (en) | 2014-09-26 | 2014-09-26 | Based on the charger power cell of two-tube parallel connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204068713U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218812A (en) * | 2014-09-26 | 2014-12-17 | 永济新时速电机电器有限责任公司 | Battery charger power unit based on double-tube parallel connection |
| CN109494993A (en) * | 2018-08-29 | 2019-03-19 | 西安中车永电电气有限公司 | A kind of high-voltage large current mixed type SiC-IGBT applying unit |
-
2014
- 2014-09-26 CN CN201420555463.XU patent/CN204068713U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218812A (en) * | 2014-09-26 | 2014-12-17 | 永济新时速电机电器有限责任公司 | Battery charger power unit based on double-tube parallel connection |
| CN109494993A (en) * | 2018-08-29 | 2019-03-19 | 西安中车永电电气有限公司 | A kind of high-voltage large current mixed type SiC-IGBT applying unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 044500 Yongji City, Shanxi Province, the city of motor street, No. 18, No. Patentee after: CRRC YONGJI ELECTRIC CO., LTD. Address before: 044500 Yongji City, Shanxi Province, the city of motor street, No. 18, No. Patentee before: Yongji Xinshisu Motor Electrical Appliance Co., Ltd. |
|
| 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: 20141231 Termination date: 20190926 |