Heat dissipation structure of cooking electric appliance

Abstract

The utility model discloses a heat dissipation structure of a cooking electric appliance, which belongs to the technical field of cooking electric appliances and comprises a machine body, an air inlet and an air outlet are arranged on the machine body, an air port coaming is arranged on the periphery of the air inlet, a fan is arranged in the air port coaming, and a coaming opening is arranged towards the air outlet. A partition plate is arranged in the machine body and divides the machine body into an upper air channel and a lower air channel, a coil panel is arranged in the upper air channel, and a circuit board and a fan are arranged in the lower air channel. The partition plate of the structure can avoid heat interference between the coil panel and the circuit board, heat dissipation air in the upper air channel and the lower air channel can flow more evenly and orderly, heat generated by the coil panel and the circuit board can be effectively discharged out of a machine body, meanwhile, the upper air channel and the lower air channel are reasonable in layout, the space occupancy rate is low, and the service life of the machine body is prolonged. And the flowing distance of the heat dissipation air is shorter, so that the air volume and the air speed loss of the heat dissipation air are reduced, and the flowing noise of the heat dissipation air is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cooking electric appliances, in particular to a heat dissipation structure of cooking electric appliances. BACKGROUND

[0002] Taking an electromagnetic oven as an example, the cooking electric appliance generates an alternating magnetic field through a coil disc, and when a heated body is placed on the electromagnetic heating device, eddy current is generated in the heated body, thereby realizing electromagnetic heating. However, a large amount of heat is generated due to long-time use of the electromagnetic oven, and heat dissipation is required to ensure normal operation thereof.

[0003] A utility model patent with the patent number CN202223002766.2 discloses a cooking device and cooking appliance, which comprises a shell, a radiator and an air guide assembly. A fan and a heating element are arranged on the bottom shell. The air guide assembly is arranged on the surface of the upper cover facing the bottom shell. At least part of the air guide assembly is projected onto the bottom shell between the radiator and the fan. The air guide assembly is used to guide the heat dissipation air flow blown out of the air outlet of the fan to the radiator. The cooking appliance fully guides the heat dissipation air flow flowing into the upper cover to the radiator above the heating element through the air guide assembly arranged on the upper cover, thereby transmitting the heat on the heating element to the outside through the radiator, achieving sufficient ventilation and precise cooling of the heating element, making the cooling system of the cooking device more reasonable, further prolonging the service life of the heating element, and ensuring the stability and efficiency of the cooking device. However, the circuit board, the first heating element and the second heating element of the heating element are arranged in different directions, which not only occupies more space inside the cooking appliance, resulting in a larger cooking appliance, but also causes the loss of air volume and air speed when the fan blows air in different directions, affecting the heat dissipation effect. At the same time, the air flowing in different directions also produces a lot of noise, affecting the user experience. Therefore, it is necessary to further improve. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a heat dissipation structure of cooking electric appliances to overcome the defects in the prior art.

[0005] A heat dissipation structure of cooking electric appliances designed for this purpose, comprising a machine body, an air inlet and an air outlet are arranged on the machine body, an air inlet surrounding plate is arranged around the air inlet, a fan is arranged in the air inlet surrounding plate, and a surrounding plate opening is arranged in the direction of the air outlet, a partition is arranged in the machine body, and an upper air channel and a lower air channel are separated by the partition, a coil disc is arranged in the upper air channel, and a circuit board and the fan are arranged in the lower air channel.

[0006] The partition shields the whole or at least part of the coil disc, the fan and / or the circuit board.

[0007] The partition plate is provided with a plurality of ventilation holes.

[0008] The circuit board is provided with a heat dissipation fin and a heating element, and the heat dissipation fin and the heating element are arranged at a position close to the opening of the air baffle.

[0009] The partition plate at least partially covers the heat dissipation fin and / or the heating element.

[0010] Alternatively, the partition plate covers the heat dissipation fin and / or the heating element as a whole.

[0011] Alternatively, the partition plate does not cover the heat dissipation fin and / or the heating element.

[0012] The air baffle is provided with a guide plate facing the heat dissipation fin and the heating element, and the partition plate covers the opening of the air baffle and the guide plate.

[0013] A ventilation gap for the passage of heat dissipation wind is arranged on the heat dissipation fin and / or between the heat dissipation fin and the heating element.

[0014] The partition plate at least partially covers the fan, or the partition plate covers the fan as a whole.

[0015] The coil disc is provided with at least one coil disc above the fan and / or the circuit board, and the partition plate covers at least part of the position or the whole between the coil disc and the fan and / or the circuit board.

[0016] The coil disc is provided with two coil discs, namely a first coil disc and a second coil disc, which are arranged in the upper air passage in front of and behind each other, the first coil disc is above the circuit board, and the second coil disc is above the fan, the partition plate covers at least part of the position between the first coil disc and the circuit board in the area close to the air outlet, and the partition plate covers at least part of the position between the second coil disc and the fan in the area close to the air inlet.

[0017] The partition plate is provided with a plurality of ventilation holes corresponding to the fan and / or the circuit board, and the upper air passage and the lower air passage are connected to each other through the ventilation holes.

[0018] The utility model discloses a partition plate divides the machine body into an upper air passage and a lower air passage, the coil disc is arranged in the upper air passage, the fan and the circuit board are arranged in the lower air passage, and then the fan blows the normal temperature wind from the outside to the upper air passage and the lower air passage through the air inlet, so that the heat generated by the coil disc and the circuit board is blown and guided and discharged to the outside of the air outlet.

[0019] The partition plate has a certain shielding effect, can avoid heat interference between the coil disc and the circuit board, can ensure the heat efficiency of the coil disc, and can make the flow direction of the heat dissipation wind in the upper wind channel and the lower wind channel more uniform and orderly, so as to effectively discharge the heat generated by the coil disc and the circuit board outside the machine body.

[0020] In addition, the upper wind channel and the lower wind channel are arranged in an up-down layout, which can effectively reduce the space occupancy rate, and the fan directly blows the normal temperature wind to the upper wind channel and the lower wind channel, so that the flow distance of the heat dissipation wind is shorter, thereby reducing the wind volume and wind speed loss of the heat dissipation wind, and further improving the heat dissipation effect.

[0021] In addition, the upper wind channel and the lower wind channel are arranged in an up-down layout, which can effectively reduce the space occupancy rate, and the fan directly blows the normal temperature wind to the upper wind channel and the lower wind channel, so that the flow distance of the heat dissipation wind is shorter, thereby reducing the wind volume and wind speed loss of the heat dissipation wind, and further improving the heat dissipation effect. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is an assembly structure schematic view of the first embodiment of the utility model.

[0023] Figure 2 It is another view assembly structure schematic view of the first embodiment of the utility model.

[0024] Figure 3 It is an exploded structure schematic view of the first embodiment of the utility model.

[0025] Figure 4 It is an assembly structure schematic view of the bottom shell, the fan, the circuit board of the first embodiment of the utility model.

[0026] Figure 5 It is an assembly structure schematic view of the bottom shell, the fan, the partition plate, the circuit board of the first embodiment of the utility model.

[0027] Figure 6 It is an assembly structure schematic view of the bottom shell, the fan, the partition plate, the circuit board, the coil disc of the first embodiment of the utility model.

[0028] Figure 7 It is an assembly structure schematic view of the bottom shell, the fan, the partition plate, the circuit board of the first embodiment of the utility model.

[0029] Figure 8 It is an assembly structure schematic view of the bottom shell, the fan, the partition plate, the circuit board of the first embodiment of the utility model.

[0030] Figure 9 It is an assembly structure schematic view of the bottom shell, the fan, the partition plate, the circuit board of the first embodiment of the utility model.

[0031] Figure 10 It is an assembly structure schematic view of the bottom shell, the fan, the partition plate, the circuit board of the first embodiment of the utility model.

[0032] Figure 11 It is the assembly structure schematic drawing of bottom shell, fan, baffle and circuit board of the fifth embodiment of the utility model.

[0033] Figure 12 It is the assembly structure schematic drawing of bottom shell, fan, baffle and circuit board of the sixth embodiment of the utility model.

[0034] Figure 13 It is the assembly structure schematic drawing of bottom shell, fan, baffle and circuit board of the seventh embodiment of the utility model.

[0035] Figure 14 It is the assembly structure schematic drawing of bottom shell, fan, baffle and circuit board of the eighth embodiment of the utility model. DETAILED DESCRIPTION

[0036] In order to make the above objects, features and advantages of the utility model more apparent, clear and easy to understand, the specific embodiments of the utility model will be described in detail below with reference to the drawings. In the following description, a lot of specific details are set forth in order to give a full and complete understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0037] The utility model will be further described below with reference to the drawings and embodiments. Embodiment one:

[0038] Referring to Figures 1-7 , the heat dissipation structure of the cooking electrical appliance includes a machine body, the machine body is provided with an air inlet 1 and an air outlet 2, the air inlet 1 is provided with an air inlet baffle 3 in the periphery, the air inlet baffle 3 is provided with a fan 4 in the inside and is provided with a baffle opening 5 in the direction of the air outlet 2, the machine body is provided with a baffle 6 in the inside and is divided into an upper air passage 7 and a lower air passage 8 by the baffle 6, the upper air passage 7 is provided with a coil panel in the inside, and the lower air passage 8 is provided with a circuit board 10 and the fan 4 in the inside.

[0039] In this embodiment, the machine body is divided into the upper air passage 7 and the lower air passage 8 by the baffle 6, the coil panel 9 is arranged in the upper air passage 7, the fan 4 and the circuit board 10 are arranged in the lower air passage 8, and then the fan 4 blows the normal temperature air from the outside to the upper air passage 7 and the lower air passage 8 through the air inlet 1, so that the heat generated by the coil panel 9 and the circuit board 10 is blown and guided and discharged to the outside of the air outlet 2.

[0040] The partition plate 6 has a certain shielding effect, which can avoid heat interference between the coil disc 9 and the circuit board 10, can ensure the heat efficiency of the coil disc 9, and can make the flow direction of the cooling air in the upper air passage 7 and the lower air passage 8 more uniform and orderly, so as to effectively discharge the heat generated by the coil disc 9 and the circuit board 10 outside the machine body.

[0041] In addition, the upper air passage 7 and the lower air passage 8 are arranged in an up-down layout, which can effectively reduce the space occupancy rate, and the fan 4 directly blows the normal temperature air to the upper air passage 7 and the lower air passage 8, so that the flow distance of the cooling air is shorter, thereby reducing the air volume and air speed loss of the cooling air, and further improving the cooling effect.

[0042] Moreover, since the flow distance of the cooling air is shorter, the flow noise of the cooling air is also reduced, and the user's use experience is improved.

[0043] Since the partition plate 6 of the embodiment has a certain shielding effect, it can shield the whole coil disc, fan 4 and / or circuit board 10 after assembly, or the partition plate 6 can shield at least part of the coil disc, fan 4 and / or circuit board 10.

[0044] As shown in Figures 4-7 , the partition plate 6 can shield at least part of the coil disc, fan 4 and circuit board 10 after assembly.

[0045] Among them, the partition plate 6 can be provided with a plurality of ventilation holes 14, so that the upper air passage 7 and the lower air passage 8 can be communicated with each other through the plurality of ventilation holes 14, thereby allowing more cooling air to enter the upper air passage 7 to cool the coil disc. In addition, the partition plate 6 can also not be provided with ventilation holes 14, so that the upper air passage 7 and the lower air passage 8 are independent of each other.

[0046] In the embodiment, the partition plate 6 is preferably provided with a plurality of ventilation holes 14.

[0047] The plurality of ventilation holes 14 can be arranged corresponding to the positions of the fan 4 and / or the circuit board 10, so that the cooling air passing through the fan 4 and / or the circuit board 10 can enter the upper air passage 7 through the plurality of ventilation holes 14. In the embodiment, as shown in Figure 5 , the plurality of ventilation holes 14 corresponding to the fan 4 are arranged on the partition plate 6, and the cooling air passing through the fan 4 can enter the upper air passage 7 through the plurality of ventilation holes 14, so as to increase the cooling air entering the upper air passage 7 and accelerate the cooling of the coil disc.

[0048] The circuit board 10 is provided with a heat dissipation fin 11 and a heating element 12, and the heat dissipation fin 11 and the heating element 12 are arranged close to the position of the baffle opening 5.

[0049] In the embodiment, the heat dissipation fins 11 and the heat generating elements 12 are arranged close to the opening 5 of the air outlet, so that the air flow from the air outlet 5 can act on the heat dissipation fins 11 and the heat generating elements 12 at a high speed and in a large amount, thereby effectively dissipating heat from the heat dissipation fins 11 and the heat generating elements 12.

[0050] The partition 6 at least partially covers the upper part of the heat dissipation fins 11 and / or the heat generating elements 12.

[0051] In the embodiment, the partition 6 at least partially covers the upper part of the heat dissipation fins 11 and the heat generating elements 12, and the upper part of the heat dissipation fins 11 and the heat generating elements 12 is not covered by the partition 6.

[0052] The air outlet partition 3 is provided with a deflector 13 facing the heat dissipation fins 11 and the heat generating elements 12, and the partition 6 covers the upper part of the air outlet opening 5 and the deflector 13.

[0053] In the embodiment, the deflector 13 can guide the air flow from the air outlet partition 3 to act on the heat dissipation fins 11 and the heat generating elements 12, thereby further improving the heat dissipation effect of the heat dissipation fins 11 and the heat generating elements 12.

[0054] Ventilation gaps for the air flow are arranged on the heat dissipation fins 11 and / or between the heat dissipation fins 11 and the heat generating elements 12.

[0055] In the embodiment, ventilation gaps for the air flow are arranged on the heat dissipation fins 11 along the direction of the air outlet 2, and ventilation gaps for the air flow are also arranged between the heat dissipation fins 11 and the heat generating elements 12. The air flow passes through the ventilation gaps to dissipate heat from the heat dissipation fins 11 and the heat generating elements 12, and then is discharged through the air outlet 2.

[0056] In the embodiment, the partition 6 at least partially covers the upper part of the fan 4, and the remaining part of the upper part of the fan 4 is not covered by the partition 6.

[0057] The coil disc is provided with at least one coil disc above the fan 4 and / or the circuit board 10, and the partition 6 covers at least part of the positions or the whole between the coil disc and the fan 4 and / or the circuit board 10.

[0058] Specifically, the coil disc is provided with two coil discs, i.e., a first coil disc 9 and a second coil disc 19, which are arranged in the upper air passage 7 in front of and behind each other. The first coil disc 9 is above the circuit board 10, and the second coil disc 19 is above the fan 4. The partition 6 covers at least part of the positions between the first coil disc 9 and the circuit board 10 in the area close to the air outlet 2, and covers at least part of the positions between the second coil disc 19 and the fan 4 in the area close to the air inlet 1.

[0059] More specifically, the first coil disc 9 is arranged near the air outlet 2, the second coil disc 19 is arranged near the air inlet 1, the first coil disc 9 is above the circuit board 10, the second coil disc 19 is above the fan 4, and the fan 4 is above the air inlet 1, and the circuit board 10 is between the air baffle opening 5 and the air outlet 2.

[0060] The partition plate 6 is fixed by buckles or fasteners, and the buckles are preferably used to fix the partition plate 6 in the embodiment. After being fixed, the partition plate 6 is positioned between the first coil disc 9 and the circuit board 10, and between the second coil disc 19 and the fan 4.

[0061] The front part (i.e. the area close to the air outlet 2) of the partition plate 6 is spaced apart from the air outlet 2, and the front part of the partition plate 6 at least partially shields the first coil disc 9 and the circuit board 10. Specifically, the front part of the partition plate 6 at least partially shields the first coil disc 9, the heat dissipation fins 11, and the heating element 12. The remaining part of the first coil disc 9, the heat dissipation fins 11, and the heating element 12 is not shielded by the front part of the partition plate 6.

[0062] The rear part (i.e. the area close to the air inlet 1) of the partition plate 6 is spaced apart from the rear side of the air baffle 3, and the rear part of the partition plate 6 at least partially shields the second coil disc 19 and the fan 4. The remaining part of the second coil disc 19 and the fan 4 is not shielded by the rear part of the partition plate 6.

[0063] In addition, the rear part of the partition plate 6 corresponding to the shielding position between the second coil disc 19 and the fan 4 is further provided with a plurality of ventilation holes 14.

[0064] The middle part of the partition plate 6 shields the air baffle opening 5 and the upper part of the air deflector 13, and also shields the interval between the first coil disc 9 and the second coil disc 19.

[0065] In the embodiment, the partition plate 6 shields the upper one-half to three-quarters of the heat dissipation fins 11 and the heating element 12, and also shields the upper one-half to three-quarters of the fan 4. The position of the fan 4 shielded by the partition plate 6 is provided with a plurality of ventilation holes 14.

[0066] The plurality of ventilation holes 14 are arranged randomly or longitudinally and transversely. The diameters of the plurality of ventilation holes 14 are the same or different, and the intervals between adjacent ventilation holes 14 are the same or different.

[0067] In the embodiment, the plurality of ventilation holes 14 are preferably arranged longitudinally and transversely.

[0068] The diameters of the plurality of ventilation holes 14 arranged longitudinally and transversely are the same.

[0069] Or, the diameters of the longitudinally arranged plurality of ventilation holes 14 are the same, the diameters of the transversely arranged plurality of ventilation holes 14 are the same, and the diameters of the longitudinally arranged plurality of ventilation holes 14 are different from the diameters of the transversely arranged plurality of ventilation holes 14.

[0070] Or, the diameters of the longitudinally arranged plurality of ventilation holes 14 are the same, the diameters of the transversely arranged plurality of ventilation holes 14 are the same, and the diameters of the longitudinally arranged plurality of ventilation holes 14 are different from the diameters of the transversely arranged plurality of ventilation holes 14.

[0071] The spacings between the longitudinally adjacent ventilation holes 14 are the same, the spacings between the transversely adjacent ventilation holes 14 are the same, and the spacings between the longitudinally adjacent ventilation holes 14 are different from the spacings between the transversely adjacent ventilation holes 14.

[0072] Or, the diameters of the longitudinally arranged plurality of ventilation holes 14 are the same, the diameters of the transversely arranged plurality of ventilation holes 14 are the same, and the diameters of the longitudinally arranged plurality of ventilation holes 14 are different from the diameters of the transversely arranged plurality of ventilation holes 14.

[0073] Or, the diameters of the longitudinally arranged plurality of ventilation holes 14 are the same, the diameters of the transversely arranged plurality of ventilation holes 14 are the same, and the diameters of the longitudinally arranged plurality of ventilation holes 14 are different from the diameters of the transversely arranged plurality of ventilation holes 14.

[0074] The number of the plurality of ventilation holes 14 is 10 to 50, the diameter of each ventilation hole 14 is 0.1 cm to 10 cm, and the spacing between the adjacent ventilation holes 14 is 0.1 cm to 10 cm. Embodiment Two:

[0075] Referring to Figure 8 The heat dissipation structure of the cooking appliance differs from the first embodiment in that the partition plate 6 is spaced apart from the rear side of the air inlet enclosure 3, and the partition plate 6 shields at least part of the position between the second coil disc 19 and the fan 4, and the rest of the position between the second coil disc 19 and the fan 4 is not shielded by the partition plate 6. That is, the partition plate 6 shields the first half of the position between the second coil disc 19 and the fan 4.

[0076] The partition plate 6 also shields above the air inlet enclosure opening 5 and the air deflector 13, and shields the interval between the first coil disc 9 and the second coil disc 19.

[0077] The position between the first coil disc 9 and the circuit board 10 is not shielded.

[0078] The partition plate 6 is not provided with ventilation holes 14.

[0079] The other parts not mentioned are the same as the first embodiment. Embodiment Three:

[0080] Referring to Figure 9 The heat dissipation structure of the cooking appliance differs from the first embodiment in that the partition plate 6 is supported at the rear side of the air inlet enclosure 3, and the partition plate 6 shields the entire position between the second coil disc 19 and the fan 4.

[0081] The partition plate 6 also shields above the air inlet enclosure opening 5 and the air deflector 13, and shields the interval between the first coil disc 9 and the second coil disc 19.

[0082] At the same time, a plurality of ventilation holes 14 are arranged on the partition plate 6.

[0083] The position between the first coil panel 9 and the circuit board 10 is not shielded.

[0084] The other parts not mentioned are the same as the first embodiment. Embodiment four:

[0085] Referring to Figure 10 , the heat dissipation structure of the cooking appliance differs from the first embodiment in that the front part (i.e. the area close to the air outlet 2) of the partition plate 6 is spaced apart from the air outlet 2, and the front part of the partition plate 6 shields at least part of the position between the first coil panel 9 and the circuit board 10, specifically, the front part of the partition plate 6 shields at least part of the position between the first coil panel 9, the heat dissipation fins 11 and the heating element 12, and the rest of the position between the first coil panel 9, the heat dissipation fins 11 and the heating element 12 is not shielded by the front part of the partition plate 6. That is, the partition plate 6 shields the back half of the position between the first coil panel 9, the heat dissipation fins 11 and the heating element 12.

[0086] The rear part (i.e. the area close to the air inlet 1) of the partition plate 6 is supported on the rear side of the air inlet coaming 3, and the rear part of the partition plate 6 shields the entire position between the second coil panel 19 and the fan 4.

[0087] In addition, the rear part of the partition plate 6 is also provided with a plurality of ventilation holes 14 corresponding to the shielded position between the second coil panel 19 and the fan 4.

[0088] The partition plate 6 also shields above the coaming opening 5 and the air deflector 13, and shields the interval between the first coil panel 9 and the second coil panel 19.

[0089] The other parts not mentioned are the same as the first embodiment. Embodiment five:

[0090] Referring to Figure 11 , the heat dissipation structure of the cooking appliance differs from the first embodiment in that the front part (i.e. the area close to the air outlet 2) of the partition plate 6 is close to the air outlet 2, and the front part of the partition plate 6 shields the entire position between the first coil panel 9 and the circuit board 10.

[0091] The rear part (i.e. the area close to the air inlet 1) of the partition plate 6 is supported on the rear side of the air inlet coaming 3, and the rear part of the partition plate 6 shields the entire position between the second coil panel 19 and the fan 4.

[0092] In addition, the partition plate 6 is also provided with a plurality of ventilation holes 14 corresponding to the shielded position between the first coil panel 9 and the circuit board 10, and the shielded position between the second coil panel 19 and the fan 4.

[0093] The partition plate 6 also covers the opening 5 of the surrounding plate and the upper part of the air deflector 13, and separates the space between the first coil plate 9 and the second coil plate 19.

[0094] The other parts not mentioned are the same as the first embodiment. Embodiment six:

[0095] Referring to Figure 12 The heat dissipation structure of the cooking appliance differs from the first embodiment in that the front part (i.e. the area close to the air outlet 2) of the partition plate 6 is close to the air outlet 2, and the front part of the partition plate 6 separates the overall position between the first coil plate 9 and the circuit board 10.

[0096] The rear part (i.e. the area close to the air inlet 1) of the partition plate 6 is spaced apart from the rear side of the air inlet surrounding plate 3, and the rear part of the partition plate 6 separates at least part of the position between the second coil plate 19 and the fan 4, and the rest of the position between the second coil plate 19 and the fan 4 is not separated by the rear part of the partition plate 6. That is, the partition plate 6 separates the front half of the position between the second coil plate 19 and the fan 4.

[0097] In addition, the partition plate 6 is provided with a plurality of air holes 14 corresponding to the separated position between the first coil plate 9 and the circuit board 10, and the separated position between the second coil plate 19 and the fan 4.

[0098] The partition plate 6 also covers the opening 5 of the surrounding plate and the upper part of the air deflector 13, and separates the space between the first coil plate 9 and the second coil plate 19.

[0099] The other parts not mentioned are the same as the first embodiment. Embodiment seven:

[0100] Referring to Figure 13 The heat dissipation structure of the cooking appliance differs from the first embodiment in that the front part (i.e. the area close to the air outlet 2) of the partition plate 6 is close to the air outlet 2, and the front part of the partition plate 6 separates the overall position between the first coil plate 9 and the circuit board 10.

[0101] In addition, the front part of the partition plate 6 (i.e. the area close to the air outlet 2) is close to the air outlet 2, and the front part of the partition plate 6 shields at least part of the position between the first coil disc 9 and the circuit board 10, specifically, the front part of the partition plate 6 shields at least part of the position between the first coil disc 9, the heat dissipation fin 11 and the heating element 12, and the remaining part of the position between the first coil disc 9, the heat dissipation fin 11 and the heating element 12 is not shielded by the front part of the partition plate 6. That is, the partition plate 6 shields the front half of the position between the first coil disc 9, the heat dissipation fin 11 and the heating element 12.

[0102] The position between the second coil disc 19 and the fan 4, the position above the partition plate opening 5 and the air deflector 13, and the interval between the first coil disc 9 and the second coil disc 19 are not shielded by the partition plate 6.

[0103] The other parts not mentioned are the same as the first embodiment. Embodiment eight:

[0104] Referring to Figure 14 , the heat dissipation structure of the cooking appliance, which is different from the first embodiment, is that the front part of the partition plate 6 (i.e. the area close to the air outlet 2) is close to the air outlet 2, and the partition plate 6 shields the entire position between the first coil disc 9 and the circuit board 10.

[0105] The position between the second coil disc 19 and the fan 4, the position above the partition plate opening 5 and the air deflector 13, and the interval between the first coil disc 9 and the second coil disc 19 are not shielded by the partition plate 6.

[0106] The other parts not mentioned are the same as the first embodiment.

[0107] The above is the preferred scheme of the present application, which shows and describes the basic principle, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation structure for a cooking appliance, comprising a body, characterized in that: The machine body is provided with an air inlet (1) and an air outlet (2). An air outlet enclosure (3) is provided around the air inlet (1). A fan (4) is provided inside the air outlet enclosure (3), and an opening (5) is provided in the enclosure facing the air outlet (2). A partition (6) is provided inside the machine body, and an upper air channel (7) and a lower air channel (8) are separated by the partition (6). A coil is provided inside the upper air channel (7), and a circuit board (10) and the fan (4) are provided inside the lower air channel (8).

2. The heat dissipation structure of the cooking appliance according to claim 1, characterized in that: The partition (6) covers the entire coil disc, and / or the fan (4), and / or the circuit board (10), or the partition (6) covers at least a portion of the coil disc, and / or the fan (4), and / or the circuit board (10).

3. The heat dissipation structure of the cooking appliance according to claim 2, characterized in that: The partition (6) is provided with a number of ventilation holes (14).

4. The heat dissipation structure of the cooking appliance according to claim 1, characterized in that: The circuit board (10) is provided with heat dissipation fins (11) and heating elements (12), and the heat dissipation fins (11) and heating elements (12) are provided near the opening (5) of the enclosure. The partition (6) covers at least a portion of the upper part of the heat dissipation fins (11) and / or the heating element (12). Alternatively, the partition (6) can cover the entire upper part of the heat dissipation fins (11) and / or the heating element (12). Alternatively, the partition (6) may not obstruct the heat dissipation fins (11) and / or the heat-generating element (12).

5. The heat dissipation structure of the cooking appliance according to claim 4, characterized in that: The air vent enclosure (3) is provided with an air guide plate (13) facing the heat dissipation fins (11) and the heating element (12), and the partition (6) covers the opening (5) of the enclosure and the area above the air guide plate (13).

6. The heat dissipation structure of the cooking appliance according to claim 5, characterized in that: A ventilation gap for heat dissipation air to pass through is provided on the heat dissipation fins (11) and / or between the heat dissipation fins (11) and the heat generation element (12).

7. The heat dissipation structure of the cooking appliance according to claim 5, characterized in that: The partition (6) covers at least a portion of the upper part of the fan (4), or the partition (6) covers the entire upper part of the fan (4).

8. The heat dissipation structure of the cooking appliance according to claim 1, characterized in that: The coil disk is provided at least one above the fan (4) and / or the circuit board (10), and the partition (6) shields at least part or all of the space between the coil disk and the fan (4) and / or the circuit board (10).

9. The heat dissipation structure of the cooking appliance according to claim 8, characterized in that: Two coils are provided, namely a first coil (9) and a second coil (19). The first coil (9) and the second coil (19) are arranged at intervals in the upper air channel (7). The first coil (9) is located above the circuit board (10), and the second coil (19) is located above the fan (4). The area of ​​the partition (6) near the air outlet (2) blocks at least a portion of the position between the first coil (9) and the circuit board (10). The area of ​​the partition (6) near the air inlet (1) blocks at least a portion of the position between the second coil (19) and the fan (4).

10. The heat dissipation structure of the cooking appliance according to claim 9, characterized in that: The partition (6) is provided with a number of ventilation holes (14) corresponding to the fan (4) and / or the circuit board (10), and the upper air channel (7) and the lower air channel (8) are interconnected through the number of ventilation holes (14).

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