CN202801289U - Heat dissipation structure of rice cooker - Google Patents
Heat dissipation structure of rice cooker Download PDFInfo
- Publication number
- CN202801289U CN202801289U CN 201220385817 CN201220385817U CN202801289U CN 202801289 U CN202801289 U CN 202801289U CN 201220385817 CN201220385817 CN 201220385817 CN 201220385817 U CN201220385817 U CN 201220385817U CN 202801289 U CN202801289 U CN 202801289U
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- Prior art keywords
- coil panel
- circuit board
- fan
- fin
- igbt
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Abstract
The utility model provides a heat dissipation structure of a rice cooker. The heat dissipation structure of the rice cooker comprises a coil panel, a support, a circuit board, an IGBT (Insulated Gate Bipolar Translator) cooling fin and a fan. The circuit board is arranged on the support; the IGBT cooling fin is arranged on the circuit board; an air deflector is arranged below the fan in the area between the IGBT cooling fin and the coil panel. According to the heat dissipation structure, the providing of the air deflector below the fan in the area between the IGBT cooling fin and the coil panel leads the wind section of the fan to the coil panel. The coil panel can work in proper at 35 DEG C and the temperature rises on the bottom portion is 20 DEG C higher than that of the side portion, and the utilization of the heat dissipation structure can radiate the IGBT cooling fin and the coil panel. After being radiated by the fan in the bellow, the temperature can be decreased by 20 DEG C, the heat dissipation being fine, thereby ensuring the service life of the coil panel.
Description
Technical field
The utility model relates to a kind of electric cooker, particularly a kind of electric cooker radiator structure.
Background technology
Electric cooker is called again grill pan, electric cooker.At present, overwhelming majority electric cooker adopts Electromagnetic Heating, produce alternating magnetic field by circuit board, in the time of above interior pot is placed on, interior pot surface is namely cut the alternation magnetic line of force and is partly produced alternating current (eddy current) at interior pot bottom metal, eddy current makes the metallic atom high speed random motion of interior pot bottom, and atom runs foul of each other, rubs and produces heat energy.
As shown in Figure 1 to Figure 3, the electric cooker radiator structure of prior art, coil panel 101 ' internal pot bottom and sidepiece heating, circuit board 103 ' is installed on the support 102 ', power device IGBT(insulated gate bipolar transistor) and IGBT fin 104 ' be installed on the circuit board 103 ', fan 105 ' perpendicular circuit board 103 ' is installed.Shown in Fig. 3 arrow, most wind is to IGBT fin 104 ', only the zone of the wind of fraction to coil panel 101 ' side over against circuit board 103 '.Yet, coil panel 101 ' bottom temperature rise is high more than the sidepiece temperature, and fan 105 ' can only dispel the heat over against the zone of circuit board 103 ' to coil panel 101 ' side, can not be to coil panel 101 ' bottom heat radiation, radiating effect is limited, the long-time service life that shortens easily coil panel 101 '.
Summary of the invention
In order to overcome the deficiencies in the prior art, the electric cooker radiator structure that the utility model provides a kind of fan simultaneously IGBT fin and coil panel to be dispelled the heat.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of electric cooker radiator structure, comprise coil panel, support, circuit board, IGBT fin and fan, described circuit board is located on the described support, described IGBT fin is located on the described circuit board, and zone between IGBT fin and coil panel, described fan below is provided with wind deflector.
Radiator structure of the present utility model, below the fan between IGBT fin and coil panel the zone be provided with wind deflector, make the wind part of fan by wind deflector guidance coil dish.Coil panel works under 35 ℃ temperature, bottom temperature rise ratio sidepiece is high about 20 ℃, adopt radiator structure of the present utility model, both can dispel the heat to the IGBT fin, can dispel the heat to coil panel simultaneously, after fan cooling is passed through in the bottom, about 20 ℃ of energy effective temperature-reducings, radiating effect is good, effectively guarantees the service life of coil panel.
In one embodiment, the trench length perpendicular direction of described IGBT fin is in described circuit board, described wind deflector is located at described IGBT fin and is brought out the place, air port near coil panel one, makes the wind part of fan directed via the IGBT fin, from wind deflector guidance coil dish.
In a preferred embodiment, described IGBT fin other end air outlet place is provided with deep bead, be used for the sealing fin and bring out the air port away from one of coil panel, the wind orientation that makes fan blow to fin is sent from the air outlet near coil panel, maximum efficiency with wind guidance coil dish, avoid the part wind to other directions.
In one embodiment, described IGBT fin is parallel to be located on the one side of described circuit board, and its trench length direction is parallel to described circuit board, and described wind deflector is located on the another side of described circuit board.The wind of fan partly blows to the IGBT fin, and part both can to the heat radiation of IGBT fin, can be dispelled the heat to coil panel by wind deflector guidance coil dish simultaneously.
In a preferred embodiment, described wind deflector is that angle can be transferred structure.Suitably adjust the angle of wind deflector, can dispel the heat to coil panel bottom or sidepiece targetedly, have very large flexibility.
In one embodiment, described wind deflector and described support are integral type structure or split-type structural, and be simple and reasonable, no matter is integral structure or split-type structural, all can realize the purpose of wind-guiding.
The beneficial effects of the utility model are: radiator structure of the present utility model, below the fan between IGBT fin and coil panel the zone be provided with wind deflector, make the wind part of fan by wind deflector guidance coil dish.Coil panel works under 35 ℃ temperature, bottom temperature rise ratio sidepiece is high about 20 ℃, adopt radiator structure of the present utility model, both can dispel the heat to the IGBT fin, can dispel the heat to coil panel simultaneously, after fan cooling is passed through in the bottom, about 20 ℃ of energy effective temperature-reducings, radiating effect is good, effectively guarantees the service life of coil panel.
Description of drawings
Fig. 1 is the structural representation of electric cooker radiator structure in the prior art.
Fig. 2 is the exploded view of Fig. 1.
Fig. 3 is the cutaway view of Fig. 1.
Fig. 4 is the structural representation of the utility model embodiment 1.
Fig. 5 is the exploded view of Fig. 4.
Fig. 6 is the cutaway view of Fig. 4.
Fig. 7 is the exploded view of the utility model embodiment 2.
Omitted the miscellaneous part irrelevant with the utility model design main points among the figure.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.
Embodiment 1
Extremely shown in Figure 5 such as Fig. 4, a kind of electric cooker radiator structure of the present utility model, comprise coil panel 101, support 102, circuit board 103, IGBT fin 104 and fan 105, support 102 is located at coil panel 101 1 sides, circuit board 103 is located on the support 102, and described IGBT fin 104 part or all of externally-hanging types are installed in described circuit board 103 edges.The trench length perpendicular direction of IGBT fin 104 is in circuit board 103.
Fan 105 is directly installed on fin 104 or support 102 or the electric cooker base, and described fan 105 belows are provided with wind deflector 106 in the zone between IGBT fin 104 and coil panel 101, and described wind deflector 106 roughly is U-shaped structure for the cross section.
In the present embodiment, about 1/2 part of IGBT fin 104 and fan 105 air outlets over against.Described wind deflector 106 is located at described IGBT fin 104 and is brought out the place, air port near coil panel 101 1, wind deflector 106 bottom surfaces and fan 105 almost parallel settings, with described IGBT fin 104 bottom surface adjacency, wind deflector 106 two sides and fan 105 approximate vertical settings are with described IGBT fin 104 two sides adjacency.
As shown in Figure 6, when fan 105 work, wind direction faces the groove that blows to fin 104, and that passes through fin 104 bottoms and two adjacent fin stops that wind direction transfers respectively the side grooves length direction of fin 104 to.The air outlet that is fin is the trench length direction of both sides.
In the present embodiment, described IGBT fin 104 brings out the place, air port away from one of coil panel 101 and is provided with deep bead 107, be used for sealing fin 104 and bring out the air port away from one of coil panel 101, the wind orientation that makes fan 105 blow to fin 104 is sent from the air outlet near coil panel 101, shown in Fig. 6 arrow, make the wind orientation of fan 105 via the groove of IGBT fin 104, from wind deflector 106 guidance coil dishes 101, maximum efficiency with wind guidance coil dish 101, avoid the part wind to other directions.
In the present embodiment, described wind deflector 106 can be transferred structure for angle.Suitably adjust the angle of wind deflector 106, can dispel the heat to coil panel 101 bottoms or sidepiece targetedly, have very large flexibility.
In the present embodiment, described wind deflector 106 and described support 102 are integral type structure or split-type structural, and be simple and reasonable, no matter is integral structure or split-type structural, all can realize the purpose of wind-guiding.
Embodiment 2
As shown in Figure 7, the difference of present embodiment and embodiment 1 is: IGBT fin 104 is located on the one side of circuit board 103, fin 104 trench length directions are parallel with circuit board 103, about 1/2 part of IGBT fin 104 and fan 105 air outlets over against.Described wind deflector 106 is located on the another side of described circuit board 103, the bottom surface of wind deflector 106 and fan 105 almost parallel settings.
The wind of fan 105 partly blows to IGBT fin 104, and wind direction is identical with fin 104 trench length directions, and wind enters from fin 104 grooves one end, and the other end is sent.Another part air-out of fan 105 both can to 104 heat radiations of IGBT fin, can be dispelled the heat to coil panel 101 simultaneously by wind deflector 106 guidance coil dishes 101.In this structure the bottom of IGBT fin 104 or place IGBT fin 104 and wind deflector 106 between circuit board 103 can play the effect of deep bead, namely be considered as deep bead.
Described wind deflector 106 and described support 102 are split-type structural.
Other structures are identical with embodiment 1.
Only be preferred embodiment of the present utility model below, but design concept of the present utility model is not limited to this, all insubstantial modifications of utilizing this design that the utility model is made also all fall within the protection domain of the present utility model.
Claims (6)
1. electric cooker radiator structure, comprise coil panel, support, circuit board, IGBT fin and fan, described circuit board is located on the described support, described IGBT fin is located on the described circuit board, it is characterized in that zone between IGBT fin and coil panel, described fan below is provided with wind deflector.
2. electric cooker radiator structure according to claim 1 is characterized in that, the trench length perpendicular direction of described IGBT fin is in described circuit board, and described wind deflector is located at described IGBT fin and is brought out the place, air port near coil panel one.
3. electric cooker radiator structure according to claim 2 is characterized in that, described IGBT fin other end air outlet place is provided with deep bead.
4. electric cooker radiator structure according to claim 1 is characterized in that, described IGBT fin is located on the one side of described circuit board, and its trench length direction is parallel to described circuit board, and described wind deflector is located on the another side of described circuit board.
5. according to claim 1 to 4 each described electric cooker radiator structures, it is characterized in that described wind deflector is that angle can be transferred structure.
6. electric cooker radiator structure according to claim 1 is characterized in that, described wind deflector and described support are integral type structure or split-type structural.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220385817 CN202801289U (en) | 2012-08-06 | 2012-08-06 | Heat dissipation structure of rice cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220385817 CN202801289U (en) | 2012-08-06 | 2012-08-06 | Heat dissipation structure of rice cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202801289U true CN202801289U (en) | 2013-03-20 |
Family
ID=47860242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220385817 Expired - Lifetime CN202801289U (en) | 2012-08-06 | 2012-08-06 | Heat dissipation structure of rice cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202801289U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104095531A (en) * | 2014-07-31 | 2014-10-15 | 佛山市顺德区美的电热电器制造有限公司 | Circuit board bracket assembly for electric pressure cooker and electric pressure cooker |
| CN105380522A (en) * | 2015-12-21 | 2016-03-09 | 杭州信多达电器有限公司 | Soybean milk machine |
-
2012
- 2012-08-06 CN CN 201220385817 patent/CN202801289U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104095531A (en) * | 2014-07-31 | 2014-10-15 | 佛山市顺德区美的电热电器制造有限公司 | Circuit board bracket assembly for electric pressure cooker and electric pressure cooker |
| CN105380522A (en) * | 2015-12-21 | 2016-03-09 | 杭州信多达电器有限公司 | Soybean milk machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |