CN207910672U - High voltage transducer power unit structure - Google Patents
High voltage transducer power unit structure Download PDFInfo
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- CN207910672U CN207910672U CN201820370403.9U CN201820370403U CN207910672U CN 207910672 U CN207910672 U CN 207910672U CN 201820370403 U CN201820370403 U CN 201820370403U CN 207910672 U CN207910672 U CN 207910672U
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- high voltage
- capacitor
- power unit
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Abstract
The utility model discloses a kind of high voltage transducer power unit structure, which includes metal plate shell, I/O cable copper piece, commutation inversion printed board, capacitor board and unit control panel.Commutation inversion printed board is that rectification, inversion device major loop and Absorption Capacitance set form, and capacitor board is that combined filter capacitance and patch type equalizing resistance collection are combined into a printed board.Cable copper piece connects commutation inversion printed board and capacitor board, simplifies the busbar connection between component, cellular construction integrated level is high, and demolition and maintenance are convenient, and cost is lower.
Description
Technical field
The utility model is related to a kind of power cell structure devices of power electronic equipment medium-high voltage frequency converter.
Background technology
Power cell is the high-voltage frequency converter component for using power power electronic device to carry out rectification, filtering, inversion, and
To constitute the core component of high-voltage frequency converter major loop, volume and cost directly affect a whole set of high voltage frequency conversion equipment.
Currently, most of power cell rectification, inversion, filtering major loop are mainly real with copper bar type of attachment in the prior art
Existing, busbar cabling is complicated, while filter capacitor group volume is bigger than normal, quality weight, causes linkage editor complicated difficult, safeguards dismounting expense
When it is laborious.This structure usually has following manner：Rectifying device includes rectifier bridge and inversion device includes that IGBT module uses copper
Row is electrically connected, and Absorption Capacitance is installed on copper bar, forms rectification, inversion major loop, and in order to ensure electric clearance requirement, cause
Copper bar moulding is complicated, and cabling is more, increases the production cost of power cell.In addition, filter capacitor need to use capacitance pallet setting dress
With height, it is used in combination capacitance hoop to be fixed on pallet, is connected with copper bar between each filter capacitor, and equal piezoelectricity is installed on busbar
Resistance, the capacitance component assembled are integrally put into metal plate enclosure interior and are screwed again, last filter capacitor circuit and rectification
It is electrically connected using copper bar between inversion major loop.Since filter capacitor volume is big, volume weight is further after multiple capacitor combinations
Increase, while capacitance assembly requirement for height is high, setting is difficult, and capacitance assembly and capacitance component is caused integrally to be put into metal plate shell consumption
Take a large amount of manpowers and time, and to bring great inconvenience when the maintenance of power cell dismounting.
Invention content
For the above demand and to being improved in place of the deficiencies in the prior art, the utility model provides a kind of for high pressure
The power cell structure of frequency converter, device compact in design, cabling is succinct, be easily installed with demolition and maintenance and cost it is relatively low.
The chassis sheet metal shell of the utility model power cell structure surrounds screw by front end-plate, end plate and pedestal and connects
It forms, device is mainly by radiator, rectifier bridge, IGBT module, commutation inversion printed board, capacitor board, unit control panel and cable
Copper piece forms.Pallet is provided on the pedestal is divided into two parts, unit control panel and capacitor board to be fixed on metal plate shell
On pallet and divide row wherein, unit control panel is flat as the master board and commutation inversion printed board and capacitor board of power cell
Row.The radiator is made of cooling fin, substrate and wind guiding tube, is fixed on front end-plate, end plate and is located at metal plate case top,
Wherein wind guiding tube draws heat from the air duct of high-pressure frequency-conversion cabinet.The rectifier bridge, IGBT module are mounted on radiator base plate,
The commutation inversion printed board is electrically connected with rectifier bridge, the fastening of IGBT module screw；The capacitor board and commutation inversion printed board
Copper piece terminal pass through transfer copper bar electrical connection.
The commutation inversion major loop of commutation inversion printed board passes through metal copper foil as a further improvement of the utility model,
Rectifying device, inversion device and Absorption Capacitance, the copper piece terminal of commutation inversion major loop and at least one or more absorption is connected
Capacitance is integrated on mono- plates of PCB.Capacitor board is connected filter capacitor by metal copper foil and realizes that circuit connects with equalizing resistance, at least
One or more filter capacitors and patch type equalizing resistance are integrated on bis- plates of PCB.Rectifying device, inversion device are inverse by rectification
Become the major loop conducting in printed board, not only simplifies copper bar connection, saved cost, and save space, reduced work(
Rate unit size.
Another kind as the utility model improves, mounting column on the pcb board two of capacitor board, and in front end-plate, rear end
Capacitance pressing plate is installed in plate side, and capacitance pressing plate connect filter capacitor with pillar with trip bolt so that filter capacitor installation is stablized.
When the utility model is remake be further improved when, radiator base plate is packed into the insulated support of threaded inserts,
Insulated support is connected and fixed cable copper piece so that arrangement it is compact straight, wherein cable copper piece include output input copper bar with it is defeated
Go out connection of the input electrode in metal plate hull outside.
The utility model is described in further detail below in conjunction with the accompanying drawings.
Description of the drawings
Fig. 1 is the structural perspective of prior art power cell.
Fig. 2 is the partial perspective view of the major loop of power cell commutation inversion shown in Fig. 1.
Fig. 3 is the stereogram of the utility model power cell.
Fig. 4 is the shell of power cell metal plate shown in Fig. 3 and capacitor board partial perspective view.
Fig. 5 is the partial perspective view of the major loop of power cell commutation inversion shown in Fig. 3.
Fig. 6 is the partial perspective view of the printed board of power cell commutation inversion shown in Fig. 5.
Specific implementation mode
Fig. 1 and Fig. 2 show the structural perspective for the prior art power cell that foregoing Background Section is previously mentioned.Figure
Filter capacitor is vertical on the pedestal of metal plate casing in 1, and cement equalizing resistance is crimped on filter capacitor with copper bar through screw
On.Two rectifier bridges respectively install a pair of of Absorption Capacitance in Fig. 2, including all use copper bar with IGBT module and output input circuit
Connection.According to the selection of such component and arrangement mode, as the high-pressure frequency-conversion being made of several concatenated power cells
Device Converting Unit, volume and weight can directly increase.
In the present invention, input cable coordinates copper piece terminal 16, turns instead of copper bar, pcb board 1, pcb board 25
The connection type for connecing copper bar 7 reduces the density of copper bar connection, as shown in Figures 3 to 6, capacitor board component and commutation inversion print
Making sheet component simplifies power cell circuit structure, retracts easy to maintenance.In the present embodiment, pallet 17 separates metal plate shell
At two pieces before and after view direction.Metal plate shell can also be separated into two pieces of view direction or so with pallet 17.
The mode of 11 stationary filtering capacitance 10 of capacitance pressing plate is only schematically shown in Fig. 3, it actually can be in capacitance pressing plate
Adhesive tape is bonded at 11 contact filter capacitors 10, increases frictional force.Wind guiding tube 1 is fixed on 3 side of radiator base plate with staking screw.
As shown in Figure 4 and Figure 5, assemble sequence should first build the framework of pedestal 6, front end-plate 12 and end plate 4 and be spirally connected, then
The component capacitor board installed and unit control panel 15 are fixed on 17 two sides of pallet by blind hole Self-Clinching Standoffs respectively；Assembly
Another part is that rectifier bridge 19, IGBT module 18 and commutation inversion printed board are installed on heat sink assembly substrate 3, further includes phase
The cable copper piece 13 of pass is finally fixed on through front end-plate 12 and end plate 4 on heat sink assembly substrate 3 with screw, and two parts close
It is integrated.
Fig. 6 shows that commutation inversion printed board has commutation inversion major loop and mounting hole, rectifying device, inversion device to pass through
Major loop conducting on pcb board 1, rectifying device are rectifier bridge or diode etc., and inversion device is IGBT module etc..
Use above specific case is illustrated the utility model, is merely used to help understand the utility model, and
Not limiting the utility model.For those skilled in the art of the present invention, the think of according to the utility model
Think, several simple deductions, deformation can also be made or replaces.
Claims (6)
1. a kind of high voltage transducer power unit structure, including：By front end-plate（12）, end plate（4）And pedestal（6）It is encircled into
Metal plate shell；Device is mainly by radiator, rectifier bridge（19）, IGBT module（18）, commutation inversion printed board, capacitor board, unit
Control panel（15）With cable copper piece（13）Composition；It is characterized in that：The pedestal（6）On be provided with pallet（17）By metal plate shell
It is divided into two parts, unit control panel（15）It is fixed on pallet with capacitor board（17）It goes up and divides row wherein；The radiator is fixed
In front end-plate（12）, end plate（4）And it is located at metal plate case top, the rectifier bridge（19）, IGBT module（18）Mounted on scattered
Hot device substrate（3）On, the commutation inversion printed board and rectifier bridge（19）, IGBT module（18）Screw fastening electrical connection；It is described
The copper piece terminal of capacitor board and commutation inversion printed board（16）Pass through copper bar of transferring（7）Electrical connection.
2. high voltage transducer power unit structure according to claim 1, it is characterised in that：The radiator is by cooling fin
（2）, substrate（3）And wind guiding tube（1）Composition.
3. high voltage transducer power unit structure according to claim 1, it is characterised in that：The commutation inversion printed board by
Pcb board one（20）, Absorption Capacitance and copper piece terminal（16）Composition, at least one or more Absorption Capacitance are mounted on pcb board one
（20）On.
4. high voltage transducer power unit structure according to claim 1, it is characterised in that：The capacitor board is by pcb board two
（5）, filter capacitor（10）With copper piece terminal（16）Composition, at least one or more filter capacitor（10）With patch type equalizing resistance
It is integrated in pcb board two（5）On.
5. according to the high voltage transducer power unit structure of claim 1 or 4, it is characterised in that：The pcb board of the capacitor board
Two（5）Upper mounting column（8）, and in front end-plate（12）, end plate（4）Side is installed by capacitance pressing plate（11）, capacitance pressing plate（11）
With pillar（8）Use trip bolt（9）Stable connection filter capacitor（10）.
6. high voltage transducer power unit structure according to claim 1 or claim 2, it is characterised in that：The radiator base plate（3）
It is packed into insulated support（14）, insulated support（14）It is connected and fixed cable copper piece（13）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820370403.9U CN207910672U (en) | 2018-03-19 | 2018-03-19 | High voltage transducer power unit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820370403.9U CN207910672U (en) | 2018-03-19 | 2018-03-19 | High voltage transducer power unit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207910672U true CN207910672U (en) | 2018-09-25 |
Family
ID=63559181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820370403.9U Active CN207910672U (en) | 2018-03-19 | 2018-03-19 | High voltage transducer power unit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207910672U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022227341A1 (en) * | 2021-04-25 | 2022-11-03 | 精进电动科技股份有限公司 | Absorption capacitor structure having insulating housing and motor controller |
-
2018
- 2018-03-19 CN CN201820370403.9U patent/CN207910672U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022227341A1 (en) * | 2021-04-25 | 2022-11-03 | 精进电动科技股份有限公司 | Absorption capacitor structure having insulating housing and motor controller |
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