Ultrathin electromagnetic oven capable of efficiently cooling

Abstract

The invention relates to an ultrathin electromagnetic oven capable of efficiently cooling. The ultrathin electromagnetic oven comprises a shell, an electromagnetic wire coil, cooling fins and cooling fans, wherein the shell is internally provided with a display circuit board and a master control circuit board; the master control circuit board is provided with an insulated gate bipolar transistor (IGBT) and a bridge rectifier; the master control circuit board and the electromagnetic wire coil are arranged at the leeward side of the cooling fan; the cooling fins comprise an IGBT cooling fin and an bridge rectifier cooling fin; and corresponding to the cooling fins, the cooling fans comprise an IGBT cooling fan and an bridge rectifier cooling fan; and the IGBT cooling fin and the IGBT cooling fan are arranged at one side of the electromagnetic wire coil, and the bridge rectifier cooling fin and the bridge rectifier cooling fan are arranged at the other side of the electromagnetic wire coil. The IGBT and the bridge rectifier which have high heat productivity on the master control circuit board are respectively correspondingly provided with different cooling fans, thus the effective cooling aiming at different heating elements is realized.

Description

technical field [0001] The invention relates to the field of kitchen cooking utensils, in particular to an ultra-thin electromagnetic cooker capable of realizing high-efficiency heat dissipation. Background technique [0002] An induction cooker in the prior art includes a housing, a heat dissipation fan disposed in the housing, a circuit board, and an electromagnetic wire reel, and the circuit board and the electromagnetic wire reel are generally arranged in layers. At present, in the ventilation and heat dissipation structure of the above-mentioned induction cooker, an air inlet is generally provided at the bottom of the shell, and the air is blown from the bottom to the circuit board and the electromagnetic wire reel. Occupies more space, which increases the upper and lower space of the induction cooker, and for better heat dissipation, there must be a certain distance between the electromagnetic coil and the circuit board. For induction cookers using axial fans, due to t...

AI Technical Summary

Problems solved by technology

At present, in the ventilation and heat dissipation structure of the above-mentioned induction cooker, an air inlet is generally provided at the bottom of the shell, and the air is blown from the bottom to the circuit board and the electromagnetic wire reel. Occupies more space, which increases the upper and lower space of the induction cooker, and for better heat dissipation, there must be a certain distance between the electromagnetic coil and the circuit board. For induction cookers using axial fans, due to the thickness limit of the axial fans , will further increase the upper and lower space of the induction cooker, the thickness of the induction cooker will increase, and the overall appearance will be cumbersome, which does not meet the requirements of portability

[0003] Induction cookers with a thinner overall thickness have appeared on the market. However, with the reduction in the thickness of the induction cooker, the limited shell space limits the temperature rise and heat dissipation of the internal accessories of the induction cooker and electronic components, which has become a further restriction on the development of the thinning of the induction cooker. At present, The general heat dissipation method is to spread the circuit board and the electromagnetic wire reel to dissipate heat at the same time. The defect of the above method is that the heat dissipation requirements of the circuit board and the electromagnetic wire reel are different. There are many heating elements, which require high heat dissipation for the elements with large heat generation, while the electromagnetic coil needs a large range of overall heat dissipation due to its large heating area; in addition, the heat generation of each heating element on the circuit board is different Different, it is necessary to distinguish between high-heat heating elements and low-heat heating elements. At the same time, simply concentrating the heating elements in one area for heat dissipation will not only lead to incomplete heat dissipation, but more seriously will lead to rapid decline in the performance of the heating elements.

Due to the above-mentioned various requirements for heat dissipation, the method of separating the circuit board and the magnetic wire reel with a simple air duct cannot achieve a good heat dissipation effect on the circuit board and the electromagnetic wire reel.

[0004] The above-mentioned technical defects of the heat dissipation and air outlet structure of the induction cooker make the improvement of the thinning of the induction cooker encounter great obstacles, affect the market demand for the thinning of the induction cooker, and bring certain safety hazards at the same time

Images