CN204131386U - A kind of IGBT buffer circuit mounting structure - Google Patents
A kind of IGBT buffer circuit mounting structure Download PDFInfo
- Publication number
- CN204131386U CN204131386U CN201420555676.2U CN201420555676U CN204131386U CN 204131386 U CN204131386 U CN 204131386U CN 201420555676 U CN201420555676 U CN 201420555676U CN 204131386 U CN204131386 U CN 204131386U
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- China
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- buffer circuit
- igbt
- igbt module
- circuit plate
- upper cover
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Abstract
The utility model provides a kind of IGBT buffer circuit mounting structure, comprises IGBT module, buffer circuit plate, protection upper cover; Described IGBT module, buffer circuit plate, protection upper cover set gradually from the bottom to top; Described protection upper cover can completely by coated for buffer circuit plate; Buffer circuit printed by described buffer circuit plate, and its installing hole is corresponding with the terminals in described IGBT module to be arranged; The position described protection covering terminals in installing hole on corresponding buffer circuit plate or IGBT module is provided with wiring hole.Also radiator is installed bottom described IGBT module.The utility model ensure that buffer circuit is integrated, saves installing space, decreases electrical connection circuit.
Description
Technical field
The utility model belongs to field of electrical components, is specifically related to a kind of IGBT buffer circuit mounting structure.
Background technology
IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor), by BJT (Bipolar Junction Transistor, double pole triode) and MOS (metal-oxide-semiconductor, insulating gate type field effect tube) the compound full-control type voltage driven type power semiconductor that forms, have MOSFET (Metal-Oxide-SemiconductorField-EffectTransistor concurrently, metal-oxide layer semiconductcor field effect transistor) high input impedance and GTR (Giant Transistor, power transistor) the advantage of low conduction voltage drop two aspect, driving power is little and saturation pressure reduces, be widely used in converter system as alternating current machine, frequency converter, Switching Power Supply, lighting circuit, the fields such as Traction Drive.
In Power Electronic Circuit, the IGBT turn-on and turn-off moment all will bear very large voltage, electric current, and usual IGBT works on off operating mode, and the turn-on and turn-off of IGBT are not instantaneous to be completed.During IGBT just conducting, the equiva lent impedance of IGBT is large, if IGBT electric current rises very soon, will cause very large conduction loss; Same device is close to when turning off completely, and the electric current of device is also larger, if the voltage that IGBT device is born rises rapidly, also can cause very large turn-off power loss.Switching loss can cause the heating of IGBT even to damage, in actual Power Electronic Circuit, also the normal electronic device that increases electric power due to the reverse recovery current of diode open electric current, bear very high induced voltage when the reason such as distributed inductance due to inductive load or wire causes device to turn off, adopt buffer circuit can improve the switch condition of IGBT.
But in practice, the buffer circuit of IGBT needs different according to concrete service condition and adopts design, thus, just be difficult to the buffer circuit of integrated universal in IGBT, and need external buffer circuit, and external buffer circuit often adds the possibility that physical fault appears in circuit because wiring is numerous and diverse, and waste installing space greatly.
Utility model content
For solving the problems of the technologies described above; the utility model provides a kind of IGBT buffer circuit mounting structure; this IGBT buffer circuit mounting structure by installing buffer circuit circuit board additional and arranging the structure protecting upper cover outside IGBT terminals; well ensure that the space-saving of the external buffer circuit of IGBT, also avoid greatly because other reasons causes circuit to occur the possibility of physical fault.
The utility model is achieved by the following technical programs.
A kind of IGBT buffer circuit mounting structure that the utility model provides, comprises IGBT module, buffer circuit plate, protection upper cover; Described IGBT module, buffer circuit plate, protection upper cover set gradually from the bottom to top; Described protection upper cover can completely by coated for buffer circuit plate; Buffer circuit printed by described buffer circuit plate, and its installing hole is corresponding with the terminals in described IGBT module to be arranged; The position described protection covering terminals in installing hole on corresponding buffer circuit plate or IGBT module is provided with wiring hole.
Also radiator is installed bottom described IGBT module.
The beneficial effects of the utility model are: ensure that buffer circuit is integrated, save installing space, decrease electrical connection circuit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation under Fig. 1 installment state;
In figure: 1-IGBT module, 11-terminals, 2-buffer circuit plate, 3-protects upper cover, 4-radiator.
Embodiment
Further describe the technical solution of the utility model below, but described in claimed scope is not limited to.
A kind of IGBT buffer circuit mounting structure as shown in Figure 1 and Figure 2, comprises IGBT module 1, buffer circuit plate 2, protection upper cover 3; Described IGBT module 1, buffer circuit plate 2, protection upper cover 3 set gradually from the bottom to top; Described protection upper cover 3 can completely by coated for buffer circuit plate 2; Buffer circuit printed by described buffer circuit plate 2, and its installing hole is corresponding with the terminals 11 in described IGBT module 1 to be arranged; On described protection upper cover 3, on corresponding buffer circuit plate 2, in installing hole or IGBT module 1, the position of terminals 11 is provided with wiring hole.
Bottom described IGBT module 1, radiator 4 is also installed.
Buffer circuit plate 2 is generally printed circuit board (PCB); it arranges buffer circuit and the components and parts such as diode, electric capacity are installed; because buffer circuit is very simple in most cases; therefore the volume of buffer circuit plate 2 can be very little; be arranged on IGBT top and can not have much impacts to IGBT one integral piece volume; after installing protection upper cover 3 additional and IGBT install additional before change in volume not quite, but its integrated effect to connect for extra buffer circuit clearly relative to electric wire.
Claims (2)
1. an IGBT buffer circuit mounting structure, comprise IGBT module (1), buffer circuit plate (2), protection upper cover (3), it is characterized in that: described IGBT module (1), buffer circuit plate (2), protection upper cover (3) set gradually from the bottom to top; Described protection upper cover (3) can completely by coated for buffer circuit plate (2); Described buffer circuit plate (2) prints buffer circuit, and its installing hole is corresponding with the terminals (11) in described IGBT module (1) to be arranged; The position of the upper installing hole of the upper corresponding buffer circuit plate (2) of described protection upper cover (3) or the upper terminals (11) of IGBT module (1) is provided with wiring hole.
2. IGBT buffer circuit mounting structure as claimed in claim 1, is characterized in that: described IGBT module (1) bottom is also provided with radiator (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420555676.2U CN204131386U (en) | 2014-09-25 | 2014-09-25 | A kind of IGBT buffer circuit mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420555676.2U CN204131386U (en) | 2014-09-25 | 2014-09-25 | A kind of IGBT buffer circuit mounting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204131386U true CN204131386U (en) | 2015-01-28 |
Family
ID=52387705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420555676.2U Active CN204131386U (en) | 2014-09-25 | 2014-09-25 | A kind of IGBT buffer circuit mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204131386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106033934A (en) * | 2015-03-18 | 2016-10-19 | 台达电子工业股份有限公司 | Integrated power conversion circuit assembly module |
-
2014
- 2014-09-25 CN CN201420555676.2U patent/CN204131386U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106033934A (en) * | 2015-03-18 | 2016-10-19 | 台达电子工业股份有限公司 | Integrated power conversion circuit assembly module |
| US9961772B2 (en) | 2015-03-18 | 2018-05-01 | Delta Electronics, Inc. | Integrated power electronics assembly module |
| CN106033934B (en) * | 2015-03-18 | 2019-05-21 | 台达电子工业股份有限公司 | Integrated power conversion circuit assembles module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |