CN213630565U - Cooking utensil - Google Patents

Abstract

The utility model provides a cooking utensil relates to household electrical appliances technical field, solves the poor problem of present cooking utensil radiating effect, is provided with division board (50) in this cooking utensil's holding chamber (40), and division board (50) are separated holding chamber (40) and are first cavity (41) and second cavity (42), and perforating hole (51) on division board (50) communicate both. A heat radiation fan (60) and at least two heating pieces are arranged in the accommodating cavity (40), an air inlet hole (11) in the bottom shell is communicated with the first cavity (41), and an air outlet hole (21) in the bottom shell is communicated with the second cavity (42). The utility model discloses can effectively utilize the heat buoyancy lift of heat dissipation wind current, reduce the flow resistance of heat dissipation wind current, increase the utilization ratio of heat dissipation wind current, promote cooking utensil's radiating effect.

Description

Cooking utensil

Technical Field

The utility model relates to a household electrical appliances technical field especially relates to a cooking utensil.

Background

The induction cooker as a common electromagnetic cooking appliance has the advantages of rapid heating, no open fire, safety, convenience and the like, and is favored and approved by more and more consumers.

The existing induction cooker comprises a bottom shell and a panel, wherein the panel is covered on the bottom shell, the panel and the bottom shell jointly enclose an accommodating cavity, a circuit board, a heat dissipation fan and a coil panel are arranged in the accommodating cavity, the coil panel and the heat dissipation fan are both electrically connected with the circuit board, and the circuit board controls the working states of the coil panel and the heat dissipation fan. The coil panel, the circuit board and the heat dissipation fan are all arranged on the bottom shell, the coil panel, the circuit board and the heat dissipation fan are approximately located on the same horizontal plane, an air inlet and an air outlet are formed in the bottom shell, the heat dissipation fan drives an air flow entering the air inlet to flow to the positions of the coil panel and the circuit board along the horizontal direction, the air flow is divided into two parts, the two parts of the air flow are used for dissipating heat of the coil panel and the circuit board respectively, and finally the air flow flows out.

However, the space in the existing accommodating cavity is narrow, the thermal floating lift force of the hot radiating airflow is large, the flowing resistance of the radiating airflow is large, the utilization rate of the airflow is low, and the radiating effect of the induction cooker is affected.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one problem mentioned in the background art, the utility model provides a cooking utensil can effectively utilize the heat buoyancy lift of heat dissipation distinguished and admirable, reduces the flow resistance that dispels the heat distinguished and admirable, increases the utilization ratio that dispels the heat distinguished and admirable, promotes cooking utensil's radiating effect.

In order to achieve the above object, the utility model provides a cooking utensil, including drain pan and apron, the apron lid closes on the drain pan, and the holding chamber is enclosed into jointly to drain pan and apron.

The containing cavity is internally provided with a partition plate, the partition plate partitions the containing cavity into a first cavity body close to one side of the bottom shell and a second cavity body close to one side of the cover plate, the partition plate is provided with a through hole, and the through hole is communicated with the first cavity body and the second cavity body.

The holding intracavity is provided with cooling fan and two at least pieces that generate heat, is provided with fresh air inlet and exhaust vent on the drain pan, fresh air inlet and first cavity intercommunication, exhaust vent and second cavity intercommunication.

At least two generate heat the piece and be located first cavity and second cavity respectively, and the heat dissipation air current gets into the holding chamber by the fresh air inlet, flows through the piece that generates heat that is located first cavity in proper order, cooling fan and the piece that generates heat that is located the second cavity to flow out by the exhaust vent.

The utility model provides a cooking utensil through set up the division board in the holding chamber, utilizes the division board to divide into first cavity and second cavity with the holding chamber to at least two generate heat the piece and set up respectively in first cavity and second cavity, reduce the mutual interference between the piece that generates heat. The heat dissipation air flow is driven by the heat dissipation fan to sequentially flow through the heating piece located in the first cavity, the heat dissipation fan and the heating piece located in the second cavity, the heat dissipation air flow is prevented from being dispersed to dissipate heat of the heating piece, the concentration and the flow of the heat dissipation air flow flowing to the heating piece are improved, and therefore the heat dissipation effect of the heating piece is improved. And, be close to the drain pan with first cavity, the second cavity is close to the apron, and the ascending trend of hot gas flow is complied with in the flow direction of heat dissipation wind current to can effectively adapt to hot buoyancy lift, reduce the flow resistance of heat dissipation air current, reduce the flow loss of heat dissipation air current, guarantee that most heat dissipation air current can flow to the piece that generates heat fast and take away the heat that generates heat, thereby optimize the radiating effect of whole cooking utensil.

In the above cooking appliance, optionally, the heat dissipation fan is connected to the partition plate near the through hole, and at least a part of the heat dissipation fan is located inside the through hole.

Therefore, the difficulty in setting the heat dissipation fan can be reduced, and the mutual interference between the installation of the heat dissipation fan and the installation of the heating element in the first cavity and the second cavity is avoided. The through hole meets the requirements of ventilation and installation, and the space utilization rate in the accommodating cavity is optimized.

In the cooking appliance, optionally, the heat dissipation fan is located in the first cavity, or the heat dissipation fan is located in the second cavity.

The arrangement can increase the flow speed of the heat dissipation wind flow in the first cavity or the second cavity, so that the heat dissipation effect of the heating element in the first cavity or the second cavity is improved.

In the above cooking appliance, optionally, the bottom case includes a lower cover and a middle frame, the middle frame is connected to the lower cover, and the middle frame is connected between the cover plate and the lower cover.

The fresh air inlet is located the lower cover, and the exhaust vent is located the one side that is close to the apron of center, and the fresh air inlet is lower than the exhaust vent.

The arrangement can ensure that the flowing trend of the heat dissipation air flow from the air inlet to the air outlet conforms to the rising trend of the hot air flow, and the flowing resistance of the heat dissipation air flow is reduced.

In the above cooking appliance, optionally, the heat generating member includes a coil disk and a circuit board, the circuit board is located in the first cavity, and the coil disk is located in the second cavity.

Set up circuit board and coil panel respectively in the cavity of difference, can effectively reduce mutual interference between the two, the coil panel is close to the apron setting simultaneously, can be convenient for heat with the pan on the apron, and the circuit board is close to the lower cover setting, and the power cord of drawing forth of circuit board that can be convenient for is drawn forth by lower cover department.

In the above cooking appliance, optionally, the heat dissipation fan is disposed near the first side of the cooking appliance, the air inlet hole is located at the second side of the lower cover near the cooking appliance, and the air outlet hole is located at the second side of the middle frame near the cooking appliance.

The first side and the second side are respectively opposite sides of the cooking appliance.

The arrangement can enable the heat dissipation air flow to flow in the accommodating cavity in a single direction, so that the generation of vortex is reduced, and the flow resistance of the heat dissipation air flow is reduced. Meanwhile, the heat dissipation air flow can be guaranteed to have the largest flowing area in the accommodating cavity, and the heat dissipation effect on the accommodating cavity is enhanced.

In the above cooking appliance, the circuit board may be attached to a surface of the separation plate on a side close to the lower cover with a first interval therebetween.

The arrangement can ensure that a flow channel for heat dissipation wind flow is arranged between the circuit board and the lower cover, and the flow resistance of the heat dissipation wind flow is reduced.

In the cooking appliance, the coil panel is optionally connected to a surface of the separation plate on a side close to the cover plate, and the coil panel and the cover plate have a second distance therebetween.

Or the coil disc is connected to the surface of the cover plate close to one side of the accommodating cavity, and a third space is formed between the coil disc and the partition plate.

The arrangement can ensure that a flow channel for the heat dissipation air flow is formed between the coil disc and the cover plate or between the coil disc and the partition plate, and the flow resistance of the heat dissipation air flow is reduced.

In the cooking utensil, optionally, the lower cover is provided with a first wind-shielding rib, the end of the first wind-shielding rib extends towards the cover plate, the edge of the through hole close to one side of the first cavity is provided with a second wind-shielding rib, and the end of the second wind-shielding rib extends towards the lower cover.

The tip of first fender wind muscle and the tip butt of second fender wind muscle, first fender wind muscle and second fender wind muscle enclose into the column district, and cooling fan is located the column district.

Such setting can utilize first fender wind muscle and second fender wind muscle to play the guide effect to the heat dissipation distinguished and admirable, increases the concentration degree that the heat dissipation distinguished and admirable to the radiating effect of reinforcing heat dissipation distinguished and admirable. Moreover, the columnar area can protect the heat dissipation fan, and mutual interference between the heat dissipation fan and other structural components in the accommodating cavity is reduced.

In foretell cooking utensil, the optional is that one side that is close to the fresh air inlet on the first wind-break muscle is provided with first wind-guiding breach, is provided with second wind-guiding breach on the second wind-break muscle, and first wind-guiding breach and second wind-guiding breach set up relatively, and first wind-guiding breach and second wind-guiding breach amalgamation form the air inlet breach of column district.

The arrangement can ensure the air inlet of the heat radiation fan, so that the heat radiation air flow entering from the air inlet hole is guided to pass through the through hole and is guided to the second cavity.

In the above cooking utensil, optionally, the circuit board is provided with a heat dissipation assembly, the heat dissipation assembly includes a heat dissipation substrate and a plurality of heat dissipation fins, the heat dissipation substrate is attached to a surface of the circuit board close to one side of the lower cover, and the plurality of heat dissipation fins are distributed on the surface of the heat dissipation substrate at intervals.

A heat dissipation air channel is formed between the adjacent heat dissipation fins, the air inlet end of the heat dissipation air channel faces the air inlet hole, and the air outlet end of the heat dissipation air channel faces the air inlet notch.

Such setting can gather together the heat dissipation distinguished and admirable in the first cavity to gather together to circuit board position, improve the radiating effect to the circuit board, accelerate the process that the heat dissipation distinguished and admirable flows to cooling blower simultaneously.

In the above cooking appliance, optionally, a third wind blocking rib is disposed at an edge of the lower cover close to the first wind guiding notch, and an end of the third wind blocking rib extends toward the cover plate and abuts against a surface of the circuit board close to one side of the lower cover.

The third wind blocking rib is attached to the side wall surface of the heat dissipation assembly.

Such an arrangement can utilize the third wind-blocking rib to guide the flow of the heat-dissipating wind entering the heat-dissipating fan.

In the above cooking appliance, optionally, the partition plate is provided with a connecting assembly, and the connecting assembly is located at the periphery of the columnar section.

The cooling fan comprises a fan support and a fan body connected to the fan support, an installation notch is formed in the first wind blocking rib and/or the second wind blocking rib, and at least part of the fan support penetrates through the installation notch to be connected with the connecting assembly.

And/or the heat radiation fan is an axial flow fan.

Such setting can improve cooling fan's stability of setting, improves the concentration degree of the heat dissipation wind current around the cooling fan simultaneously.

In the cooking appliance, optionally, an auxiliary fan is arranged in the accommodating cavity, the auxiliary fan is arranged close to the air inlet hole, and/or the auxiliary fan is arranged close to the air outlet hole.

The arrangement can enhance the driving effect of the heat dissipation air flow in the accommodating cavity, accelerate the flow speed of the heat dissipation air flow and optimize the heat dissipation effect.

In the above cooking appliance, optionally, the first cavity is located right below the second cavity, the proportion range of the height of the first cavity in the height of the accommodating cavity is 20-80%, and the proportion range of the height of the second cavity in the height of the accommodating cavity is 20-80%.

Space utilization in the holding cavity can be optimized through the arrangement, flowing of heat dissipation wind flow is facilitated, and structural reasonability and heat dissipation effect of the cooking appliance are improved.

In the above cooking appliance, optionally, the cooking appliance further includes a control assembly, the control assembly includes a control member and a control plate electrically connected to each other, a mounting hole is formed in the bottom shell, the control member is located in the mounting hole, and at least a portion of the control member is exposed outside the accommodating cavity.

The control panel is located in the first cavity or the second cavity.

Or the accommodating cavity comprises a third cavity, the third cavity is mutually independent from the first cavity and/or the second cavity, and the control board is positioned in the third cavity.

Such setting can effectively utilize the accommodation space in the holding chamber, improves control assembly's installation stability.

In the above cooking appliance, optionally, there are a plurality of air inlet holes, the air inlet holes are distributed on the lower cover at intervals, the distribution area of the air inlet holes on the lower cover is a first annular area, and the central angle range of the first annular area is 200 degrees and 300 degrees.

The air inlet quantity of wind in holding chamber can be increased to such setting, and the lower heat dissipation wind current of the temperature of being convenient for gets into the holding chamber in a large number to optimize the radiating effect.

In foretell cooking utensil, the optional is that the center is ring structure, and the exhaust vent has a plurality ofly, and a plurality of exhaust vents interval distribution on the center, and the distribution area of exhaust vent on the center is the second annular region, and the central angle scope in second annular region is 100 plus 180 degrees.

The air outlet volume of the accommodating cavity can be increased due to the arrangement, so that the heat dissipation air flow with higher temperature can flow out of the accommodating cavity in time, and the heat dissipation effect is optimized.

The structure of the present invention and other objects and advantages thereof will be more clearly understood from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a cooking appliance according to an embodiment of the present invention;

fig. 2 is an exploded view of a first viewing angle of a cooking appliance according to an embodiment of the present invention;

fig. 3 is an exploded view of a cooking appliance at a second viewing angle according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an exploded state of a cooking appliance according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a lower cover of a cooking appliance according to an embodiment of the present invention;

fig. 6 is a bottom view of a cooking appliance according to an embodiment of the present invention;

fig. 7 is a cross-sectional view of a cooking appliance according to an embodiment of the present invention.

Description of reference numerals:

100-a cooking appliance;

10-lower cover;

11-air inlet holes;

12-a first wind-blocking rib;

121-a first wind guiding notch;

122-mounting notches;

13-third wind-blocking rib;

14-a foot pad;

15-power supply line;

20-middle frame;

21-air outlet holes;

30-a cover plate;

31-temperature measuring part;

32-a heat insulation mat;

40-an accommodating cavity;

41-a first cavity;

42-a second cavity;

50-a divider plate;

51-through holes;

52-second wind blocking rib;

521-a second air guide notch;

53-a connecting assembly;

60-a heat dissipation fan;

61-a fan support;

62-a fan body;

70-a coil disc;

80-a circuit board;

81-a heat dissipation substrate;

82-heat dissipation fins;

90-a control assembly;

91-a control member;

92-a control panel;

93-display panel.

Detailed Description

In present electromagnetism stove, the panel lid closes on the drain pan, and panel and drain pan enclose into the holding chamber jointly, and the holding intracavity is provided with circuit board, cooling fan and coil panel, and coil panel and cooling fan all with circuit board electric connection, circuit board control coil panel and cooling fan's operating condition. The coil panel, the circuit board and the heat dissipation fan are all arranged on the bottom shell, the volume of the accommodating cavity of the induction cooker is limited, so that the coil panel, the circuit board and the heat dissipation fan are approximately positioned on the same horizontal plane, an air inlet and an air outlet are formed in the bottom shell, and the heat dissipation fan drives air flow entering the air inlet to flow to the positions of the coil panel and the circuit board along the horizontal direction. On the first hand, based on the coil panel and the circuit board are respectively located at different positions, the air current can be divided into two parts through the air deflector in the accommodating cavity, and the two parts of air current respectively flow to the coil panel and the circuit board to dissipate heat of the coil panel and the circuit board and finally flow out of the air outlet. However, the space in the conventional accommodating cavity is narrow, and after the heat dissipation airflow is divided into two parts, the flow of the heat dissipation airflow flowing to the coil panel or the circuit board can be reduced, so that the heat dissipation effects of the coil panel and the circuit board are affected. In the second aspect, after the heat dissipation airflow exchanges heat with the coil disc or the circuit board, the heat dissipation airflow with higher temperature is generated, and the heat dissipation airflow rises under the driving of the thermal buoyancy lifting force, so that the thermal buoyancy lifting force needs to be overcome in the process that the heat dissipation airflow flows out of the air outlet, and the flow resistance of the heat dissipation airflow is increased. Both the two situations can cause the lower utilization rate of the heat dissipation air current, and finally influence the heat dissipation effect of the induction cooker.

Based on foretell technical problem, the utility model provides a cooking utensil through set up the division board in the holding chamber, utilizes the division board to divide into first cavity and second cavity with the holding chamber to will at least two generate heat the piece and set up respectively in first cavity and second cavity, reduce the mutual interference between the piece that generates heat. The heat dissipation air flow is driven by the heat dissipation fan to sequentially flow through the heating piece located in the first cavity, the heat dissipation fan and the heating piece located in the second cavity, the heat dissipation air flow is prevented from being dispersed to dissipate heat of the heating piece, the concentration and the flow of the heat dissipation air flow flowing to the heating piece are improved, and therefore the heat dissipation effect of the heating piece is improved. And, be close to the drain pan with first cavity, the second cavity is close to the apron, and the ascending trend of hot gas flow is complied with in the flow direction of heat dissipation wind current to can effectively adapt to hot buoyancy lift, reduce the flow resistance of heat dissipation air current, reduce the flow loss of heat dissipation air current, guarantee that most heat dissipation air current can flow to the piece that generates heat fast and take away the heat that generates heat, thereby optimize the radiating effect of whole cooking utensil.

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the drawings in the preferred embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a cooking appliance according to an embodiment of the present invention. Fig. 2 is an exploded view of a first viewing angle of a cooking appliance according to an embodiment of the present invention. Fig. 3 is an exploded view of a second viewing angle of the cooking appliance according to the embodiment of the present invention. Fig. 4 is a schematic structural diagram of an exploded state of a cooking appliance according to an embodiment of the present invention. Fig. 5 is a schematic structural diagram of a lower cover of a cooking appliance according to an embodiment of the present invention. Fig. 6 is a bottom view of a cooking appliance according to an embodiment of the present invention. Fig. 7 is a cross-sectional view of a cooking appliance according to an embodiment of the present invention.

As shown in fig. 1 to 7, an embodiment of the present invention provides a cooking apparatus 100, which includes a bottom casing and a cover plate 30, wherein the cover plate 30 covers the bottom casing, and the bottom casing and the cover plate 30 jointly form an accommodating cavity 40.

The accommodating cavity 40 is provided with a partition plate 50, the partition plate 50 divides the accommodating cavity 40 into a first cavity 41 close to one side of the bottom shell and a second cavity 42 close to one side of the cover plate 30, the partition plate 50 is provided with a through hole 51, and the through hole 51 is communicated with the first cavity 41 and the second cavity 42.

The accommodating cavity 40 is internally provided with a heat radiation fan 60 and at least two heating elements, the bottom shell is provided with an air inlet hole 11 and an air outlet hole 21, the air inlet hole 11 is communicated with the first cavity 41, and the air outlet hole 21 is communicated with the second cavity 42.

At least two heating parts are respectively arranged in the first cavity 41 and the second cavity 42, and the heat dissipation air flow enters the accommodating cavity 40 through the air inlet 11, sequentially flows through the heating parts arranged in the first cavity 41, the heat dissipation fan 60 and the heating parts arranged in the second cavity 42, and flows out through the air outlet 21.

It should be noted that the cooking appliance 100 provided in this embodiment may be an induction cooker, an electric ceramic cooker, an electric stewpan, an electric rice cooker, or the like, and the specific type of the cooking appliance 100 is not limited in this embodiment. The present embodiment will be described below by taking an induction cooker as an example, the induction cooker may be a circular concave induction cooker shown in the drawing or a square flat induction cooker, and the specific shape of the induction cooker is not limited in the present embodiment.

The bottom case in the cooking appliance 100 may include a lower cover 10 and a middle frame 20, the middle frame 20 being coupled to the lower cover 10, and the middle frame 20 being coupled between a cover plate 30 and the lower cover 10. The lower cover 10, the middle frame 20 and the cover plate 30 may together define a receiving cavity 40, wherein the cover plate 30 may be detachably connected to the middle frame 20, so as to facilitate the detachment of the cover plate 30 and the installation, detachment or maintenance of the structural members in the receiving cavity 40. The middle frame 20 and the lower cover 10 may be integrally formed to increase the structural strength of the bottom case, and of course, they may be separately formed and connected by a fastening member.

The accommodating cavity 40 is provided with a partition plate 50, and the partition plate 50 can divide the accommodating cavity 40 into a first cavity 41 and a second cavity 42, wherein the first cavity 41 is located below the second cavity 42, i.e. on a side close to the lower cover 10. Therefore, the accommodating space in the accommodating cavity 40 can be effectively planned by the partition plate 50, the subsequent structural members can be conveniently installed, meanwhile, the first cavity 41 and the second cavity 42 can be effectively separated by the partition plate 50, the structural members in the two cavities are prevented from being influenced with each other, and the structural stability of the cooking appliance 100 is improved. The partition plate 50 may be detachably attached to the middle frame 20. Alternatively, the partition plate 50 may be integrally formed with the middle frame 20, and in this case, the middle frame 20 and the lower cover 10 are separately provided, so as to facilitate the installation and removal of the structural members in the first cavity 41.

In this embodiment, the lower cover 10 is provided with a lower mounting post (not shown), the cover plate 30 is provided with an upper mounting post (not shown), the partition plate 50 is provided with a mounting through hole, and the fastener sequentially penetrates through the lower mounting post and the mounting through hole to be connected with the upper mounting post, so as to assemble the lower cover 10, the partition plate 50, the middle frame 20 and the cover plate 30. The tip that the mounting post kept away from holding chamber 40 one side down still is provided with callus on the sole 14, and this mounting post can also play the effect of cooking utensil 100 supporting legs simultaneously down, sets up callus on the sole 14 and can reduce cooking utensil 100 and place the friction of mesa, plays buffering and absorbing effect simultaneously to protection cooking utensil 100. This callus on the sole 14 can be rubber pad or resin pad etc. can offer the cavity in this time erection column, and the tip at the cavity is installed to callus on the sole 14, can also set up damping spring isotructure in the cavity, and damping spring can be connected with callus on the sole 14 to the effect of reinforcing shock attenuation and buffering.

Specifically, as shown in fig. 2 and 3, a heat dissipation fan 60 and at least two heat generating members are disposed in the accommodating chamber 40. The heat dissipation fan 60 can drive the flow of the heat dissipation wind in the accommodating chamber 40, and the heat generating components can include, but are not limited to, a coil panel 70 and a circuit board 80, and when the cooking utensil 100 is an electric ceramic oven, the coil panel 70 can be replaced by a heating resistance wire. Wherein the circuit board 80 may be located in the first cavity 41 and the coil disk 70 may be located in the second cavity 42. Different heating members are respectively arranged in different cavities, and on one hand, the two heating members can be separated by utilizing the partition plate 50, so that the mutual interference between the two heating members in the structure is effectively reduced. On the other hand, the first cavity 41 and the second cavity 42 separated by the partition plate 50 have a much smaller volume than the original accommodating cavity 40, and during the heat dissipation process, the distribution area of the heat dissipation wind flow can be effectively reduced, so that the concentration ratio is increased, and the heat dissipation is concentrated on the coil panel 70 or the circuit board 80. Further, the partition plate 50 can also prevent the heat dissipation wind currents in the first cavity 41 and the second cavity 42 from crosstalk with each other, thereby ensuring the heat dissipation effect of the respective heat generating members in the two cavities.

Further, the partition plate 50 is provided with a through hole 51, the through hole 51 can communicate the first cavity 41 and the second cavity 42, and when the heat dissipation fan 60 operates, the heat dissipation air flow can be driven to sequentially flow through the circuit board 80, the heat dissipation fan 60 and the coil panel 70. Therefore, the heat dissipation air flow entering the air inlet 11 firstly concentrates on heat dissipation of the circuit board 80 and secondly concentrates on heat dissipation of the coil panel 70, and the whole process does not have a shunting process of the heat dissipation air flow, so that the flow of the heat dissipation air flow at the positions of the coil panel 70 and the circuit board 80 is increased, and the heat dissipation effects of the coil panel 70 and the circuit board 80 are enhanced.

It should be noted that, since the magnetic field generated by the coil panel 70 during operation needs to heat the pot above the cover 30, the coil panel 70 is disposed in the second cavity 42 close to the cover 30, so as to facilitate the magnetic field acting on the pot. The circuit board 80 needs to be connected with an external power supply, meanwhile, a mounting through hole is formed in the middle frame 20, and the power line 15 led out from the circuit board 80 can penetrate through the mounting through hole in the middle frame 20, so that the circuit board 80 is arranged in the first cavity 41 close to one side of the lower cover 10, the leading-out of the power line 15 of the circuit board 80 can be facilitated, meanwhile, the power line 15 is far away from the cover plate 30, and the power line 15 can be prevented from being damaged by the high-temperature coil panel. Meanwhile, the power cord 15 is located at a side close to the lower cover 10, which may be away from the user's sight, improving the user experience of the cooking appliance 100.

Referring to fig. 2 and 3, in the present embodiment, the heat dissipation fan 60 is connected to the partition plate 50 near the through hole 51, and at least a portion of the heat dissipation fan 60 is located inside the through hole 51. It should be noted that the through hole 51 may be a flow hole for the heat dissipation wind flow between the first cavity 41 and the second cavity 42, and based on the fact that the heat dissipation wind flow passes through the through hole 51, the partition plate 50 may generate a certain blocking effect on the heat dissipation wind flow, so that the heat dissipation wind flow can only pass through the through hole 51, and thus the flow speed of the heat dissipation wind flow may be reduced to a certain extent. In the first aspect, in order to avoid the reduction of the flow rate of the cooling air flow, the cooling fan 60 is disposed at the through hole 51, so that the flow rate of the cooling air flow at the through hole 51 can be effectively increased. In the second aspect, based on the through hole 51 communicating with both the first cavity 41 and the second cavity 42, the heat dissipation fan 60 is located at this position, which can guide the heat dissipation wind flow in the first cavity 41 and also can guide the heat dissipation wind flow in the second cavity 42, thereby improving the driving effect of the heat dissipation wind flow. In the third aspect, the heat dissipation fan 60 is disposed at the position based on the empty position of the through hole 51, so that the through hole 51 can be effectively utilized, the requirements of ventilation and installation can be met, and the space utilization rate in the accommodating cavity 40 is optimized.

As another realizable embodiment, the heat dissipation fan 60 is located in the first cavity 41, or the heat dissipation fan 60 is located in the second cavity 42. Of course, in actual use, the heat dissipation fan 60 may be set as described above according to the requirement of the installation space in the accommodating cavity 40, so as to improve the reasonability of arrangement of the structural members in the accommodating cavity 40, and increase the flow rate of the heat dissipation wind flow in the first cavity 41 or the second cavity 42, thereby improving the heat dissipation effect of the heat generating member in the first cavity 41 or the second cavity 42.

Referring to fig. 2, the air inlet holes 11 are formed in the lower cover 10, the air outlet holes 21 are formed in a side of the middle frame 20 adjacent to the cover plate 30, and the air inlet holes 11 are lower than the air outlet holes 21. It should be noted that the temperature of the heat dissipating air flow continuously rises after the heat exchange between the heat dissipating air flow and the heat generating member, and the heat dissipating air flow with a certain temperature can generate an upward thermal floating lift force, so the arrangement of the air inlet holes 11 and the air outlet holes 21 can conform to the rising trend of the hot air flow, and the flow resistance of the heat dissipating air flow from the air inlet holes 11 to the air outlet holes 21 is reduced.

Referring to fig. 7, the heat dissipation fan 60 is disposed near a first side of the cooking appliance 100, the air inlet hole 11 is disposed on the lower cover 10 near a second side of the cooking appliance 100, and the air outlet hole 21 is disposed on the middle frame 20 near the second side of the cooking appliance 100. The first side and the second side are opposite sides of the cooking appliance 100, respectively.

Based on the above arrangement, the cooling air flows in the first cavity 41, enters the accommodating cavity 40 through the air inlet 11 on the second side, flows to the cooling fan 60 on the first side, passes through the cooling fan 60 and the through hole 51, and then enters the second cavity 42. In the second cavity 42, the air flows from the first side to the second side and flows to the air outlet 21. Therefore, the flow processes of the heat dissipation wind flow in the accommodating cavity 40 are all unidirectional flow, and a circulation flow process does not exist, so that the generation of vortex can be effectively reduced, and the flow resistance of the heat dissipation wind flow is reduced. Meanwhile, the arrangement can ensure that high-temperature heat dissipation air flow after heat exchange flows out of the accommodating cavity 40 in time, so that heat in the accommodating cavity 40 is taken out in time. Further, this ensures that the maximum flow area of the heat dissipating wind in the accommodating chamber 40 is sufficiently contacted to the circuit board 80 in the first cavity 41 and the coil disk 70 in the second cavity 42. The heat dissipation effect of the heat dissipation wind flow on the accommodating cavity 40 is enhanced through the above process.

The circuit board 80 is connected to a surface of the partition plate 50 near the lower cover 10, and the circuit board 80 and the lower cover 10 have a first distance therebetween. The circuit board 80 is arranged on the partition plate 50, so that the circuit board 80 can be prevented from occupying more installation space of the lower cover 10 when being positioned on the lower cover 10, the structures such as the air inlet 11, the air guide plate and the like are arranged in the reserved space of the lower cover 10, and the bearing pressure of the lower cover 10 can be reduced. The first distance ensures that a flow channel for the heat dissipating wind flows is formed between the circuit board 80 and the lower cover 10, and the flow resistance of the heat dissipating wind in the first cavity 41 is reduced.

In an alternative embodiment, the coil disk 70 is connected to the surface of the separation plate 50 on the side close to the cover plate 30, and the coil disk 70 and the cover plate 30 have a second distance therebetween.

As another alternative, the coil disk 70 is connected to the side of the cover plate 30 close to the accommodating cavity 40, and the coil disk 70 and the partition plate 50 have a third distance therebetween.

The second and third pitches can ensure that a flow passage for the cooling wind flow is formed between the coil disk 70 and the cover plate 30 or between the coil disk 70 and the partition plate 50, and reduce the flow resistance of the cooling wind flow in the second cavity 42. It should be noted that the first distance, the second distance and the third distance may be set according to the thickness dimension of the cooking appliance 100, and the specific values thereof are not limited in the present embodiment.

Referring to fig. 2 and 4, the lower cover 10 is provided with a first wind blocking rib 12, an end of the first wind blocking rib 12 extends toward the cover plate 30, a hole edge of the through hole 51 near the first cavity 41 is provided with a second wind blocking rib 52, and an end of the second wind blocking rib 52 extends toward the lower cover 10. The end of the first wind-blocking rib 12 abuts against the end of the second wind-blocking rib 52, the first wind-blocking rib 12 and the second wind-blocking rib 52 are enclosed into a columnar area, and the heat dissipation fan 60 is located in the columnar area.

The above arrangement has the following effects: in the first aspect, the first wind blocking rib 12 and the second wind blocking rib 52 can guide the heat dissipation wind flow, and avoid the area where the heat dissipation wind flow is distributed too large, thereby increasing the concentration of the heat dissipation wind flow and enhancing the heat dissipation effect of the heat dissipation wind flow. In the second aspect, the first wind-blocking rib 12 and the second wind-blocking rib 52 are both located in the accommodating cavity 40 near the through hole 51, and therefore can play a role of guiding the heat dissipation wind flowing through the through hole 51, so that the heat dissipation wind quickly passes through the through hole 51. In a third aspect, the columnar area formed by the first wind-blocking rib 12 and the second wind-blocking rib 52 can protect the heat dissipation fan 60, and reduce mutual interference between the heat dissipation fan 60 and other structural members in the accommodating cavity 40.

Furthermore, a first air guiding notch 121 is arranged on one side, close to the air inlet hole 11, of the first air blocking rib 12, a second air guiding notch 521 is arranged on the second air blocking rib 52, the first air guiding notch 121 and the second air guiding notch 521 are oppositely arranged, and the first air guiding notch 121 and the second air guiding notch 521 are spliced to form an air inlet notch of the columnar area. This arrangement ensures the supply of the heat radiation fan 60, thereby guiding the flow of the heat radiation air introduced from the air inlet hole 11 through the penetration hole 51 and into the second chamber 42. Of course, the air guiding notch may also be located on the first air blocking rib 12 or on the second air blocking rib 52, and may be specifically set according to actual needs.

Specifically, a heat dissipation assembly is arranged on the circuit board 80, the heat dissipation assembly includes a heat dissipation substrate 81 and a plurality of heat dissipation fins 82, the heat dissipation substrate 81 is attached to a surface of the circuit board 80 close to one side of the lower cover 10, and the plurality of heat dissipation fins 82 are distributed on the surface of the heat dissipation substrate 81 at intervals. A heat dissipation air duct is formed between adjacent heat dissipation fins 82, an air inlet end of the heat dissipation air duct faces the air inlet hole 11, and an air outlet end of the heat dissipation air duct faces the air inlet gap.

It should be noted that the heat dissipation substrate 81 can increase the contact area with the circuit board 80, thereby increasing the heat exchange area between the circuit board 80 and the heat dissipation assembly, facilitating the circuit board 80 to rapidly transfer heat to the heat dissipation assembly, and improving the heat dissipation effect of the circuit board 80. Meanwhile, the heat-dissipating fins 82 on the heat-dissipating substrate 81 can increase the heat-exchanging area between the heat-dissipating component and the heat-dissipating airflow, so that the heat-dissipating airflow can take away the heat quickly. Meanwhile, the heat dissipation air duct formed by the heat dissipation fins 82 can gather the heat dissipation air flow in the first cavity 41 and gather the heat dissipation air flow to the position of the circuit board 80, so that the heat dissipation effect on the circuit board 80 is improved. Meanwhile, the cooling air flow is guided to the through hole 51, and the process of the cooling air flow to the through hole 51 and the cooling fan 60 is accelerated.

Further, a third wind shielding rib 13 is provided at a mouth edge of the lower cover 10 close to the first wind guiding notch 121, and an end of the third wind shielding rib 13 extends toward the cover plate 30 and abuts against a surface of the circuit board 80 close to the lower cover 10. The third wind-blocking ribs 13 are attached to the side wall surface of the heat dissipation assembly. The third wind-blocking rib 13 is located at the edge of the opening of the first wind-guiding notch 121, and can guide the heat dissipation wind flow entering the first wind-guiding notch 121, so that the heat dissipation wind flow can flow into the columnar area conveniently. The third wind-blocking rib 13 is attached to the side wall surface of the heat dissipation assembly, so that the heat dissipation assembly and the electronic component on the circuit board 80 adjacent to the heat dissipation assembly can be separated, and mutual interference between the heat dissipation assembly and the electronic component on the circuit board 80 can be avoided.

Meanwhile, the first wind-blocking ribs 12 and the third wind-blocking ribs 13 are located on the lower cover 10, so that the lower cover 10 can be reinforced, and the structural strength of the lower cover 10 is enhanced.

Referring to fig. 3, the partition plate 50 is provided with a connecting assembly 53, and the connecting assembly 53 is located at the outer circumference of the column section. The cooling fan 60 includes a fan bracket 61 and a fan body 62 connected to the fan bracket 61, the first wind-blocking rib 12 and/or the second wind-blocking rib 52 are provided with an installation notch 122, and at least a part of the fan bracket 61 passes through the installation notch 122 and is connected to the connection assembly 53. It should be noted that the connecting assembly 53 may include a connecting post and a positioning post, a connecting hole and a positioning hole are correspondingly formed in the fan support 61, the positioning post passes through the positioning hole to realize the pre-positioning of the heat dissipation fan 60 on the partition plate 50, and the fastening member passes through the connecting hole to connect with the connecting post to realize the fixed connection of the heat dissipation fan 60 on the partition plate 50. With coupling assembling 53 setting in the periphery in column district, can reduce the flow that the mounting structure of fan support 61 influences heat dissipation distinguished wind and flow, reduce radiator fan 60's the installation degree of difficulty, improve radiator fan 60's the stability that sets up.

In this embodiment, the heat dissipation fan 60 may be an axial fan, that is, the heat dissipation air flow is entered from a side of the heat dissipation fan 60 close to the first cavity 41 (i.e., below the heat dissipation fan 60), and is exited from a side of the heat dissipation fan 60 close to the second cavity 42 (i.e., above the heat dissipation fan 60).

Further, in order to enhance the driving effect of the heat dissipation airflow in the accommodating cavity 40, an auxiliary fan may be disposed in the accommodating cavity 40, the auxiliary fan being disposed near the air inlet 11, and/or the auxiliary fan being disposed near the air outlet 21, so as to accelerate the flow rate of the heat dissipation airflow and optimize the heat dissipation effect. The specific setting position of the auxiliary blower and the specific type of the auxiliary blower may be set as required, which is not limited in this embodiment.

In this embodiment, the first cavity 41 is located right below the second cavity 42, the proportion range of the height of the first cavity 41 in the height of the accommodating cavity 40 is 20-80%, and the proportion range of the height of the second cavity 42 in the height of the accommodating cavity 40 is 20-80%. Such an arrangement can optimize the space utilization in the accommodating chamber 40, facilitate the flow of the heat dissipating wind flow, and improve the structural reasonableness and heat dissipating effect of the cooking appliance 100. In practical use, a user may set specific values of the heights of the first cavity 41 and the second cavity 42 according to specific heights of the accommodating cavity 40 and thicknesses of the circuit board 80 and the coil panel 70, and the specific values are not limited in this embodiment.

Referring to fig. 3, the cooking appliance 100 may include a control assembly 90, the control assembly 90 includes a control member 91 and a control plate 92 electrically connected to each other, a mounting hole is formed in the bottom case, the control member 91 is located in the mounting hole, and at least a portion of the control member 91 is exposed outside the accommodating cavity 40. The control assembly 90 may be electrically connected to the circuit board 80 to enable a user to control the cooking appliance 100.

As an achievable embodiment, the control plate 92 is located in the first cavity 41 or the second cavity 42.

In another embodiment, the receiving chamber 40 includes a third chamber, which is independent of the first chamber 41 and/or the second chamber 42, and the control plate 92 is located in the third chamber. In this embodiment, a first baffle may be disposed on the lower cover 10, a second baffle may be disposed on the partition plate 50, an end of the first baffle abuts against an end of the second baffle, and the first baffle, the second baffle and an inner wall surface of the middle frame 20 together define a third cavity. The first and second baffles separate the third chamber from the first chamber 41. In practical use, the second cavity 42 may be separated from the third cavity by providing other structural members, which will not be described herein. The arrangement can effectively utilize the accommodating space in the accommodating cavity 40, and the installation stability of the control assembly 90 is improved.

In this embodiment, the control assembly 90 may further include a display panel 93, the middle frame 20 may have a notch, the display panel 93 is connected to the notch, and the display panel 93 forms a portion of the bottom chassis and forms an annular structure together with the middle frame 20. At this time, the mounting hole is located on the display plate 93, and the display plate 93 may be provided with scale marks for indication and the like.

Referring to fig. 6, there are a plurality of air inlet holes 11, the air inlet holes 11 are distributed on the lower cover 10 at intervals, and the distribution area of the air inlet holes 11 on the lower cover 10 is a first annular area, and the central angle range of the first annular area is 200 degrees and 300 degrees. The arrangement can increase the air inlet volume of the accommodating cavity 40, and the heat dissipation air flow with lower temperature can conveniently enter the accommodating cavity 40 in a large quantity, so that the heat dissipation effect is optimized.

Referring to fig. 2, the middle frame 20 is an annular structure, the air outlet holes 21 are multiple, the air outlet holes 21 are distributed on the middle frame 20 at intervals, a distribution area of the air outlet holes 21 on the middle frame 20 is a second annular area, and a central angle range of the second annular area is 100 degrees and 180 degrees. The arrangement can increase the air outlet volume of the accommodating cavity 40, so that the heat dissipation air flow with higher temperature can flow out of the accommodating cavity 40 in time, and the heat dissipation effect is optimized.

Further, the temperature measuring part 31 can be arranged at a position close to the cover plate 30 in the second cavity 42, the temperature measuring part 31 can be electrically connected with the circuit board 80 in the first cavity 41, the temperature measuring part 31 can acquire the temperature of the pot transmitted to the cover plate 30, the temperature can be indirectly used as the real-time heating temperature of the pot, and the circuit board 80 can regulate and control the work of the coil panel 70 after acquiring the temperature, so that the temperature control of the cooking appliance 100 is realized.

The cover plate 30 of this embodiment may be a resin member to facilitate fixing of the coil disk 70, and the coil disk 70 is connected to a surface of the cover plate 30 near the accommodating cavity. At this time, the lid plate 30 is damaged in order to prevent the pot from contacting the lid plate 30. The surface of the cover plate 30 can be further provided with a heat insulation pad 32, and the cookware is placed on the heat insulation pad 32, so that the cover plate 30 is prevented from being in direct contact with the cookware. Of course, the cover plate 30 may also include a panel and an upper cover which are separately arranged, the panel is generally connected to the upper cover by bonding, and the panel may be a microcrystalline panel or a ceramic panel. At this time, the coil disk 70 may be disposed on the face of the partition plate 50 on the side close to the second cavity 42.

In the description of the embodiments of the present invention, it should be understood that the terms "mounted," "connected," and "connected" are intended to be construed broadly, e.g., to mean a fixed connection, an indirect connection through intervening media, a connection between two elements, or an interaction between two elements, unless expressly stated or limited otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. The terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing and simplifying the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically stated otherwise.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (18)

1. A cooking appliance, characterized by comprising a bottom shell and a cover plate (30), wherein the cover plate (30) covers the bottom shell, and the bottom shell and the cover plate (30) jointly enclose a containing cavity (40);

a partition plate (50) is arranged in the accommodating cavity (40), the partition plate (50) partitions the accommodating cavity (40) into a first cavity (41) close to one side of the bottom shell and a second cavity (42) close to one side of the cover plate (30), a through hole (51) is formed in the partition plate (50), and the first cavity (41) and the second cavity (42) are communicated through the through hole (51);

a heat radiation fan (60) and at least two heating pieces are arranged in the accommodating cavity (40), an air inlet hole (11) and an air outlet hole (21) are formed in the bottom shell, the air inlet hole (11) is communicated with the first cavity (41), and the air outlet hole (21) is communicated with the second cavity (42);

at least two generate heat the piece and be located respectively in first cavity (41) and second cavity (42), the heat dissipation air current by fresh air inlet (11) gets into holding chamber (40), flow through in proper order and be located in first cavity (41) generate heat the piece, cooling fan (60) and be located in second cavity (42) generate heat the piece, and by exhaust vent (21) flow.

2. The cooking appliance according to claim 1, wherein the heat dissipation fan (60) is connected to the separation plate (50) near the through hole (51), and at least a part of the heat dissipation fan (60) is located inside the through hole (51).

3. The cooking appliance according to claim 1, wherein the heat dissipation fan (60) is located in the first cavity (41) or wherein the heat dissipation fan (60) is located in the second cavity (42).

4. The cooking appliance according to claim 2, wherein the bottom shell comprises a lower cover (10) and a middle frame (20), the middle frame (20) being connected to the lower cover (10) and the middle frame (20) being connected between the cover plate (30) and the lower cover (10);

the air inlet (11) is located on the lower cover (10), the air outlet (21) is located on one side, close to the cover plate (30), of the middle frame (20), and the air inlet (11) is lower than the air outlet (21).

5. The cooking appliance according to claim 4, wherein the heat generating member comprises a coil disk (70) and a circuit board (80), the circuit board (80) being located in the first cavity (41), the coil disk (70) being located in the second cavity (42).

6. The cooking appliance according to claim 4, wherein the heat dissipation fan (60) is disposed near a first side of the cooking appliance, the air inlet hole (11) is located at a second side of the lower cover (10) near the cooking appliance, and the air outlet hole (21) is located at a second side of the middle frame (20) near the cooking appliance;

the first side and the second side are opposite sides of the cooking appliance, respectively.

7. The cooking appliance according to claim 5, wherein the circuit board (80) is attached to a face of the separation plate (50) on a side close to the lower cover (10), the circuit board (80) and the lower cover (10) having a first spacing therebetween.

8. The cooking appliance according to claim 5, wherein the coil disk (70) is attached to a face of the separation plate (50) on a side close to the cover plate (30), the coil disk (70) and the cover plate (30) having a second spacing therebetween;

or the coil disc (70) is connected to the surface of the cover plate (30) on the side close to the accommodating cavity (40), and a third distance is reserved between the coil disc (70) and the partition plate (50).

9. The cooking appliance according to claim 5, wherein a first wind blocking rib (12) is provided on the lower cover (10), an end of the first wind blocking rib (12) extends toward the cover plate (30), a hole edge of the through hole (51) on a side close to the first cavity (41) is provided with a second wind blocking rib (52), and an end of the second wind blocking rib (52) extends toward the lower cover (10);

the end part of the first wind blocking rib (12) is abutted to the end part of the second wind blocking rib (52), the first wind blocking rib (12) and the second wind blocking rib (52) are enclosed into a columnar area, and the heat dissipation fan (60) is located in the columnar area.

10. The cooking utensil as claimed in claim 9, wherein the first wind-guiding notch (121) is disposed on a side of the first wind-shielding rib (12) close to the wind inlet hole (11), the second wind-shielding rib (52) is disposed with a second wind-guiding notch (521), the first wind-guiding notch (121) and the second wind-guiding notch (521) are disposed oppositely, and the first wind-guiding notch (121) and the second wind-guiding notch (521) are spliced to form the wind inlet notch of the columnar area.

11. The cooking appliance according to claim 10, wherein a heat dissipation assembly is disposed on the circuit board (80), the heat dissipation assembly includes a heat dissipation substrate (81) and a plurality of heat dissipation fins (82), the heat dissipation substrate (81) is attached to a surface of the circuit board (80) on a side close to the lower cover (10), and the plurality of heat dissipation fins (82) are spaced apart from a surface of the heat dissipation substrate (81);

and a heat dissipation air channel is formed between the adjacent heat dissipation fins (82), the air inlet end of the heat dissipation air channel faces towards the air inlet hole (11), and the air outlet end of the heat dissipation air channel faces towards the air inlet notch.

12. The cooking appliance according to claim 11, wherein a third wind blocking rib (13) is provided on the lower cover (10) at a mouth edge near the first wind guiding notch (121), an end of the third wind blocking rib (13) extends toward the cover plate (30) and abuts against a face of the circuit board (80) on a side near the lower cover (10);

and the third wind shielding rib (13) is attached to the side wall surface of the heat dissipation assembly.

13. The cooking appliance according to claim 9, wherein the separation plate (50) is provided with a connection assembly (53), the connection assembly (53) being located at the periphery of the cylindrical section;

the heat dissipation fan (60) comprises a fan support (61) and a fan body (62) connected to the fan support (61), the first wind blocking rib (12) and/or the second wind blocking rib (52) are/is provided with an installation notch (122), and at least part of the fan support (61) penetrates through the installation notch (122) to be connected with the connecting assembly (53);

and/or the heat radiation fan (60) is an axial flow fan.

14. The cooking appliance according to any of the claims 1 to 13, wherein an auxiliary fan is arranged in the housing chamber (40), said auxiliary fan being arranged close to the air inlet opening (11) and/or said auxiliary fan being arranged close to the air outlet opening (21).

15. The cooking appliance according to any one of claims 1 to 13, wherein the first cavity (41) is located directly below the second cavity (42), the height of the first cavity (41) being in the range of 20 to 80% of the height of the housing cavity (40), and the height of the second cavity (42) being in the range of 20 to 80% of the height of the housing cavity (40).

16. The cooking appliance according to any one of the claims 1 to 13, further comprising a control assembly (90), wherein the control assembly (90) comprises a control member (91) and a control plate (92) which are electrically connected with each other, the bottom shell is provided with a mounting hole, the control member (91) is positioned in the mounting hole, and at least part of the control member (91) is exposed outside the accommodating cavity (40);

the control board (92) is located in the first cavity (41) or the second cavity (42);

or, the accommodating cavity (40) comprises a third cavity, the third cavity is independent from the first cavity (41) and/or the second cavity (42), and the control panel (92) is located in the third cavity.

17. The cooking appliance according to any one of the claims 4 to 13, wherein the air inlet holes (11) are plural, the plural air inlet holes (11) are distributed at intervals on the lower cover (10), and the distribution area of the air inlet holes (11) on the lower cover (10) is a first annular area, and the central angle of the first annular area ranges from 200 degrees to 300 degrees.

18. The cooking utensil as claimed in any one of claims 4 to 13, wherein the middle frame (20) is an annular structure, the air outlet holes (21) are plural, the plural air outlet holes (21) are distributed on the middle frame (20) at intervals, and the distribution area of the air outlet holes (21) on the middle frame (20) is a second annular area, and the central angle range of the second annular area is 100 and 180 degrees.

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