CN205069619U - IGBT heat radiation structure and electric rice cooker - Google Patents
IGBT heat radiation structure and electric rice cooker Download PDFInfo
- Publication number
- CN205069619U CN205069619U CN201520777353.2U CN201520777353U CN205069619U CN 205069619 U CN205069619 U CN 205069619U CN 201520777353 U CN201520777353 U CN 201520777353U CN 205069619 U CN205069619 U CN 205069619U
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- CN
- China
- Prior art keywords
- fin
- igbt
- substrate
- radiator structure
- radiator
- 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.)
- Withdrawn - After Issue
Links
- 230000005855 radiation Effects 0.000 title abstract description 5
- 240000007594 Oryza sativa Species 0.000 title abstract 2
- 235000007164 Oryza sativa Nutrition 0.000 title abstract 2
- 235000009566 rice Nutrition 0.000 title abstract 2
- 239000000758 substrate Substances 0.000 claims description 28
- 230000017525 heat dissipation Effects 0.000 abstract description 5
- 239000012141 concentrate Substances 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000010411 cooking Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model discloses a IGBT heat radiation structure and electric rice cooker, including the radiator, the radiator is connected with the circuit board, and one side of base plate is provided with the IGBT module in the radiator, and the fin of a plurality of parallels of opposite side formation of base plate, base plate both sides terminal surface form no. I curb plate parallel with the fin, no. II curb plates respectively, the fin both sides form the heat dissipation curb plate of a plurality of slopes. The utility model discloses a fin both sides form the heat dissipation curb plate to shape and structure through the heat dissipation curb plate have increased radiating rate and radiating efficiency, have avoided thermal part to concentrate, thereby make the IGBT module work in the temperature range of safety, have increased factor of safety and life in the use of IGBT module.
Description
Technical field
The utility model belongs to a kind of heat dissipation element of cooking device, is specifically related to a kind of IGBT radiator structure and electric cooker.
Background technology
IGBT(InsulatedGateBipolarTransistor), i.e. insulated gate bipolar transistor, by BJT(double pole triode) and MOS(insulating gate type field effect tube) the compound full-control type voltage driven type power semiconductor that forms.
IGBT has the features such as voltage is high, electric current is large, frequency is high, conducting resistance is little, is widely used in the inverter circuit of frequency converter.But due to the resistance to conveyance capacity of IGBT and resistance to overvoltage capabilities poor, once occur surprisingly it will being made to damage.For this reason, need in IGBT use procedure to carry out IGBT design protection from overcurrent, overvoltage, overheated three aspects.
The overtemperature protection of IGBT is generally adopt radiator, and radiator can adopt common radiator or heat-pipe radiator, and further can adopt forced air cooling on the basis of radiator.
Be applied to IGBT in the cooking device impact due to assembly space and operational environment, the heat of IGBT can not shed in time, the heat piled up can make that IGBT is overheated to be burnt out, and therefore, the IGBT applied in cooking device does not also have a kind of radiator structure of effective, safety and stability.
Summary of the invention
The utility model proposes for solving prior art Problems existing, its objective is and provides a kind of IGBT radiator structure and electric cooker.
The technical solution of the utility model is: a kind of IGBT radiator structure, comprise radiator, radiator is connected with circuit board, in radiator, the side of substrate is provided with IGBT module, the opposite side of substrate forms multiple parallel fin, substrate both sides end face forms No. I side plate parallel with fin, No. II side plate respectively, and described fin both sides form the side radiating plate-fin of multiple inclination.
The free end of described side radiating plate-fin tilts to the direction away from substrate.
Described fin side side radiating plate-fin length reduces gradually according to by the direction of substrate to fin free end.
The side radiating plate-fin of described fin both sides is that contraposition arranges or shifts to install.
Described No. I side plate, No. II side plate height are all greater than the height of fin.
The pilot hole of assembling IGBT module, assembling rib is formed in described substrate.
The inter fin space of pilot hole both sides is greater than the width of rigging screw.
The utility model proposes a kind of electric cooker simultaneously, this electric cooker comprises above-mentioned IGBT radiator structure, this IGBT radiator structure comprises radiator, circuit board, IGBT module, in radiator, the side of substrate is provided with IGBT module, the opposite side of substrate forms multiple parallel fin, substrate both sides end face forms No. I side plate parallel with fin, No. II side plate respectively, and described fin both sides form the side radiating plate-fin of multiple inclination.
The free end of described side radiating plate-fin tilts to the direction away from substrate.
Described fin side side radiating plate-fin length reduces gradually according to by the direction of substrate to fin free end.
The side radiating plate-fin of described fin both sides is that contraposition arranges or shifts to install.
Described No. I side plate, No. II side plate height are all greater than the height of fin.
The pilot hole of assembling IGBT module, assembling rib is formed in described substrate.
The inter fin space of pilot hole both sides is greater than the width of rigging screw.
Fin both sides of the present utility model form side radiating plate-fin, and add radiating rate and radiating efficiency by the shape of side radiating plate-fin and structure thereof, avoid the concentration of local of heat, thus IGBT module is worked in the temperature range of safety, add the coefficient of safety in IGBT module use procedure and useful life.
Accompanying drawing explanation
Fig. 1 is the assembling stereogram of the utility model radiator;
Fig. 2 is the stereogram of the utility model radiator;
Fig. 3 is the front view of the utility model radiator.
Wherein:
1 radiator 2 circuit board
3IGBT module 4 substrate
5 No. I side plates, 6 No. II side plates
7 fin 8 side radiating plate-fins
9 pilot holes 10 assemble rib.
Embodiment
Below, with reference to drawings and Examples, the utility model is described in detail:
As shown in Fig. 1 ~ 3, a kind of IGBT radiator structure, comprise radiator 1, radiator 1 is connected with circuit board 2, in radiator 1, the side of substrate 4 is provided with IGBT module 3, the opposite side of substrate 4 forms multiple parallel fin 7, and substrate 4 both sides end face forms No. I side plate parallel with fin 75, No. II side plate 6 respectively, and described fin 7 both sides form the side radiating plate-fin 8 of multiple inclination.
The free end of described side radiating plate-fin 8 tilts to the direction away from substrate 4.
Described fin 7 side side radiating plate-fin 8 length reduces gradually according to by the direction of substrate 4 to fin 7 free end.
The heat absorption conduction produced when IGBT module 3 works by the substrate 4 of radiator 1, the fin 7 be arranged in parallel is convenient to the heat absorbed in substrate 4 to derive, because the free end of side radiating plate-fin 8 tilts to the direction away from substrate 4, namely change from small to big in the aperture of heat dissipation channel, thus enable the heat transmission gas body of same volume take away more heat.In IGBT module 3 course of work, can assert that the heat that IGBT module 3 unit interval produces is constant, constant by the unit interval air quantity of fin 7, radiator structure in the utility model can make air-flow with more heat due to skewed side radiating plate-fin 8, ensure that the stability of heat radiation, avoid the accumulation of amount of localized heat.
The side radiating plate-fin 8 of described fin 7 both sides arranges in contraposition or shifts to install.Mutual interference during heat radiation can effectively be avoided or weaken to the layout type of side radiating plate-fin 8, is beneficial to heat dispersing, improves the efficiency of heat radiation.
Described No. I side plate 5, No. II side plate 6 is highly all greater than the height of fin 7.
The pilot hole 9 of assembling IGBT module 3, assembling rib 10 is formed in described substrate 4.
Fin 7 spacing of pilot hole 9 both sides is greater than the width of rigging screw.And ensure that side radiating plate-fin 8 does not contact with rigging screw, avoid the heat of local to concentrate.
The present embodiment proposes a kind of electric cooker simultaneously, and this electric cooker comprises above-mentioned IGBT radiator structure, and this IGBT radiator structure comprises radiator 1, circuit board 2, IGBT module 3.IGBT radiator structure in the present embodiment is identical with above-mentioned IGBT radiator structure, does not repeat them here.
Fin both sides of the present utility model form side radiating plate-fin, and add radiating rate and radiating efficiency by the shape of side radiating plate-fin and structure thereof, avoid the concentration of local of heat, thus IGBT module is worked in the temperature range of safety, add the coefficient of safety in IGBT module use procedure and useful life.
Claims (8)
1. an IGBT radiator structure, comprise radiator (1), radiator (1) is connected with circuit board (2), in radiator (1), the side of substrate (4) is provided with IGBT module (3), it is characterized in that: the opposite side of substrate (4) forms multiple parallel fin (7), substrate (4) both sides end face forms No. I side plate (5) parallel with fin (7), No. II side plate (6) respectively, and described fin (7) both sides form the side radiating plate-fin (8) of multiple inclination.
2. a kind of IGBT radiator structure according to claim 1, is characterized in that: the free end of described side radiating plate-fin (8) tilts to the direction away from substrate (4).
3. a kind of IGBT radiator structure according to claim 2, is characterized in that: described fin (7) side side radiating plate-fin (8) length reduces gradually according to by the direction of substrate (4) to fin (7) free end.
4. a kind of IGBT radiator structure according to claim 3, is characterized in that: the side radiating plate-fin (8) of described fin (7) both sides arranges in contraposition or shifts to install.
5. a kind of IGBT radiator structure according to claim 4, is characterized in that: described No. I side plate (5), No. II side plate (6) are highly all greater than the height of fin (7).
6. a kind of IGBT radiator structure according to claim 5, is characterized in that: form the pilot hole (9) of assembling IGBT module (3), assembling rib (10) in described substrate (4).
7. a kind of IGBT radiator structure according to claim 6, is characterized in that: fin (7) spacing of pilot hole (9) both sides is greater than the width of rigging screw.
8. an electric cooker, comprises a kind of IGBT radiator structure, it is characterized in that: the IGBT radiator structure of described IGBT radiator structure as described in any one of claim 1 ~ 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520777353.2U CN205069619U (en) | 2015-10-09 | 2015-10-09 | IGBT heat radiation structure and electric rice cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520777353.2U CN205069619U (en) | 2015-10-09 | 2015-10-09 | IGBT heat radiation structure and electric rice cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205069619U true CN205069619U (en) | 2016-03-02 |
Family
ID=55396138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520777353.2U Withdrawn - After Issue CN205069619U (en) | 2015-10-09 | 2015-10-09 | IGBT heat radiation structure and electric rice cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205069619U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106571349A (en) * | 2015-10-09 | 2017-04-19 | 上海纯米电子科技有限公司 | IGBT heat radiation structure and electric rice cooker |
-
2015
- 2015-10-09 CN CN201520777353.2U patent/CN205069619U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106571349A (en) * | 2015-10-09 | 2017-04-19 | 上海纯米电子科技有限公司 | IGBT heat radiation structure and electric rice cooker |
| CN106571349B (en) * | 2015-10-09 | 2020-03-24 | 上海纯米电子科技有限公司 | IGBT heat radiation structure and electric rice cooker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160302 Effective date of abandoning: 20200324 |