CN213931061U - Cooking device - Google Patents

Abstract

The utility model provides a cooking device, a partition board (50) is arranged in a containing cavity (40), and the containing cavity (40) is divided by the partition board (50) into a first cavity (41) and a second cavity (42). A sub-separation plate (411) is arranged in the first chamber (41), and the sub-separation plate (411) separates the first chamber (41) into a first sub-chamber (412) and a second sub-chamber (413). An air inlet hole (11) and an air outlet hole (21) are arranged on the bottom shell. The heat radiation fan (60) is positioned in the first sub-chamber (412), and the at least two heating pieces are respectively positioned in the second sub-chamber (413) and the second chamber (42). The utility model discloses can effectively comply with the heat buoyancy lift of heat dissipation distinguished and admirable, reduce the flow resistance of heat dissipation distinguished and admirable, improve the concentration of heat dissipation distinguished and admirable, increase the utilization ratio of heat dissipation distinguished and admirable, promote the radiating effect of cooking device.

Description

Cooking device

Technical Field

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

Background

As a common electromagnetic cooking device, an electromagnetic oven has the advantages of rapid heating, no open fire, safety, convenience and the like, and is popular and accepted 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 of the air outlet.

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 device can effectively comply with the heat buoyancy lift of heat dissipation distinguished and admirable, reduces the flow resistance that the heat dissipation distinguished and admirable, improves the concentration that the heat dissipation distinguished and admirable, increases the utilization ratio that the heat dissipation distinguished and admirable, promotes the radiating effect of cooking device.

In order to achieve the above object, the present invention provides a cooking device, which comprises a bottom casing and a cover plate, wherein the cover plate covers the bottom casing, and the bottom casing and the cover plate jointly enclose an accommodating cavity.

The accommodating cavity is internally provided with a partition plate, the partition plate partitions the accommodating cavity into a first cavity close to one side of the bottom shell and a second cavity close to one side of the cover plate, and the partition plate is provided with a first communicating hole for communicating the first cavity with the second cavity.

Be provided with the sub-division board in the first cavity, the sub-division board separates first cavity and is first subchamber and second subchamber, is provided with the second intercommunicating pore of intercommunication first subchamber and second subchamber on the sub-division board.

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 sub-chamber intercommunication, exhaust vent and second chamber intercommunication.

The cooling fan is arranged in the first sub-chamber, the at least two heating pieces are respectively arranged in the second sub-chamber and the second chamber, cooling air flow enters the accommodating cavity through the air inlet hole, flows through the cooling fan in sequence, is arranged in the second sub-chamber and is arranged in the second sub-chamber, and flows out through the air outlet hole.

The utility model provides a cooking device, through set up the division board in the holding chamber, utilize 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. Through set up the sub-division board in first cavity to with cooling blower and the piece that generates heat set up respectively in the first subchamber and the second subchamber that form, thereby reduce cooling blower's the distribution region that the heat dissipation wind flows, make it concentrate distribute in the piece place region that generates heat, increase the concentration degree and the heat radiation intensity that the heat dissipation wind flows. And the first cavity is close to the bottom shell, the second strength is close to the cover plate, and the flowing direction of the heat dissipation airflow follows the rising trend of hot airflow, so that the heat dissipation device can effectively adapt to the heat floating lifting force, reduce the flowing resistance of the heat dissipation airflow, reduce the flowing loss of the heat dissipation airflow, ensure that most of the heat dissipation airflow can quickly flow to the heating element and take away the heat of the heating element, and further optimize the heat dissipation effect of the whole cooker.

In the above cooker, the heat dissipation fan may be attached to an inner wall surface of the bottom case.

The arrangement can reduce the difficulty of the heat radiation fan and improve the installation stability of the heat radiation fan.

In the above cooker, the heat radiation fan may be connected to a surface of the partition plate on a side close to the first sub-chamber.

Due to the arrangement, the division plate and the heat dissipation fan can be preassembled, and the assembly difficulty of the cooker is reduced.

In the above cooker, optionally, the bottom case includes a lower cover and a middle frame, the middle frame is coupled to the lower cover, and the middle frame is coupled between the cover plate and the lower cover. The fresh air inlet is positioned on the lower cover, and the air outlet is positioned on one side of the middle frame close to the cover plate.

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 cooker, optionally, the heat generating member includes a coil disk and a circuit board, the circuit board is located in the second sub-chamber, and the coil disk is located in the second sub-chamber.

The mutual interference between the coil panel and the circuit board can be reduced by the arrangement, the coil panel and the circuit board are subjected to concentrated heat dissipation successively, and the heat dissipation effects of the coil panel and the circuit board are enhanced respectively.

In the above cooking device, optionally, the heat dissipation fan is a centrifugal fan, the heat dissipation fan includes a fan housing and a fan body, the fan body is located in the fan housing, the fan housing is provided with an air inlet and an air outlet, the air inlet is located on two opposite sides of the fan body in the vertical direction, and the air outlet is located on the side edge of the fan body. The air inlet faces at least part of the air inlet hole, and the air outlet faces the second communication hole.

The arrangement facilitates the heat dissipation air flow entering the air inlet to flow out of the air outlet to the second communication hole, so that the heat dissipation air flow in the accommodating cavity is accelerated.

In the above cooker, optionally, the heat dissipation fan and the circuit board are both connected to a surface of the separation plate on a side close to the lower cover, and a first distance is provided between the air inlet of the heat dissipation fan on the side close to the lower cover and the circuit board and the lower cover.

A second distance is formed between the air inlet of the side, close to the cover plate, of the heat dissipation fan and the surface, close to the lower cover, of the partition plate.

The arrangement can ensure that the air inlet and the air outlet of the heat dissipation fan are both provided with a common air duct so as to ensure that heat dissipation air flow smoothly passes through the heat dissipation fan and reduce the flow resistance of the heat dissipation air flow.

In the above cooker, optionally, the coil disk is attached to a face of the partition plate on a side close to the lid plate with a third interval therebetween.

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

The arrangement can lead the coil disc to reserve a channel for the heat dissipation wind to flow through when the coil disc is arranged in the second chamber, and reduce the flow resistance of the heat dissipation wind.

In the above cooker, optionally, the heat dissipation fan is connected to the first side of the partition plate adjacent to the cooker, the air inlet hole is located on the first side of the lower cover adjacent to the cooker, and the air outlet hole is located on the first side of the middle frame adjacent to the cooker. The first communicating hole is positioned on the separation plate near the second side of the cooker. The first side and the second side are opposite sides of the cooker, respectively.

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 cooker, optionally, the lower cover may be provided with a first partition plate, an end of the first partition plate may extend toward the cover plate, a face of the partition plate on a side close to the lower cover may be provided with a second partition plate, and an end of the second partition plate may extend toward the lower cover. The end of the first partition board and the end of the second partition board are abutted to form a sub-partition board.

The arrangement can reduce the arrangement difficulty of the sub-separation plates and improve the mechanical strength of the lower cover and the separation plates.

In the above cooker, optionally, the second communication hole is located on the first partition plate;

or, the second communication hole is located on the second separator.

Or the first clapboard is provided with a first notch, the second clapboard is provided with a second notch, the first notch and the second notch are oppositely arranged and are mutually spliced to form a second communicating hole.

Such an arrangement can reduce the difficulty of the arrangement of the second communication hole, while improving the structural flexibility of the cooker.

In the above cooker, optionally, the partition plate is provided with a communication gap, and the communication gap and the inner wall surface of the middle frame together form a first communication hole.

Such setting up can reduce the setting degree of difficulty of first through-hole.

In the above cooking device, optionally, the middle frame is provided with a control assembly, the control assembly includes a control element and a control plate which are electrically connected to each other, the bottom shell is provided with a mounting hole, the control element is located in the mounting hole, and at least a part of the control element is exposed outside the accommodating cavity; the control panel is located in the first chamber, the second chamber or the communication gap.

Such setting can utilize first communication hole to realize ventilating and the demand of installation control module, optimizes the space utilization in the holding chamber, guarantees control module's radiating effect simultaneously.

In the above cooking apparatus, optionally, the air inlet holes include a plurality of first air inlet holes and a plurality of second air inlet holes, a projection of the heat dissipation fan on the lower cover covers all the first air inlet holes, and the second air inlet holes are located at an outer periphery of the projection of the heat dissipation fan on the lower cover.

The plurality of second air inlet holes are distributed on the lower cover at intervals, the distribution area of the second air inlet holes on the lower cover is a first annular area, and the central angle range of the first annular area is 100-200 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 the above cooking device, optionally, the middle frame is of an annular structure, the air outlet holes are multiple, the air outlet holes are distributed on the middle frame at intervals, the distribution area of the air outlet holes on the middle frame is a second annular area, and the central angle range of the second annular area is 100-degree and 180-degree.

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.

In the above cooking apparatus, 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 outlet of the heat dissipation fan, and the air outlet end of the heat dissipation air channel faces the first communication hole.

The heat dissipation air flow in the first cavity can be gathered by the arrangement, and the heat dissipation air flow is gathered to the position of the circuit board, so that the heat dissipation effect of the circuit board is improved, and meanwhile, the process that the heat dissipation air flow flows to the heat dissipation fan is accelerated.

In the above cooking device, optionally, an auxiliary blower is disposed in the accommodating chamber, the auxiliary blower is disposed near the first communicating hole, the auxiliary blower is disposed near the second communicating hole, and/or the auxiliary blower is disposed near the air outlet.

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 cooker, optionally, the first chamber is located directly below the second chamber, the height of the first chamber accounts for 20-80% of the height of the accommodating cavity, and the height of the second chamber accounts for 20-80% of the height of the accommodating cavity.

The proportion of the volume of the first sub-chamber to the volume of the first chamber is in the range of 20-80%, and the proportion of the volume of the second sub-chamber to the volume of the first chamber is in the range of 20-80%.

The arrangement can optimize the space utilization rate in the accommodating cavity, is convenient for the flow of the heat dissipation wind flow, and improves the structural reasonability and the heat dissipation effect of the cooker.

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 view of a cooking device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram illustrating an exploded state of a first viewing angle of a cooking device according to an embodiment of the present invention;

FIG. 3 is a schematic structural view illustrating a second perspective exploded view of a cooking apparatus according to an embodiment of the present invention;

fig. 4 is an exploded view of a cooking apparatus according to an embodiment of the present invention;

fig. 5 is a partial schematic view of a portion I in fig. 4 according to an embodiment of the present invention;

fig. 6 is a sectional view of a cooking apparatus according to an embodiment of the present invention.

Description of reference numerals:

100-a cooking device;

10-lower cover;

11-air inlet holes;

111-a first air inlet;

112-a second air inlet hole;

12-a foot pad;

13-a power line;

14-a first separator;

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 chamber;

411-a subparticle;

412-a first sub-chamber;

413-a second sub-chamber;

414-second communication hole;

42-a second chamber;

50-a divider plate;

51-a first via hole;

52-a second separator;

53-communication gap;

60-a heat dissipation fan;

61-air inlet;

62-air outlet;

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-control 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 device 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. Through set up the sub-division board in first cavity to with cooling blower and the piece that generates heat set up respectively in the first subchamber and the second subchamber that form, thereby reduce cooling blower's the distribution region that the heat dissipation wind flows, make it concentrate distribute in the piece place region that generates heat, increase the concentration degree and the heat radiation intensity that the heat dissipation wind flows. And the first cavity is close to the bottom shell, the second strength is close to the cover plate, and the flowing direction of the heat dissipation airflow follows the rising trend of hot airflow, so that the heat dissipation device can effectively adapt to the heat floating lifting force, reduce the flowing resistance of the heat dissipation airflow, reduce the flowing loss of the heat dissipation airflow, ensure that most of the heat dissipation airflow can quickly flow to the heating element and take away the heat of the heating element, and further optimize the heat dissipation effect of the whole cooker.

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 view of a cooking device according to an embodiment of the present invention. Fig. 2 is a schematic structural diagram of a cooking device according to an embodiment of the present invention in an exploded state at a first viewing angle. Fig. 3 is a schematic structural diagram of a cooker according to an embodiment of the present invention in an exploded state at a second viewing angle. Fig. 4 is an exploded view of a cooking apparatus according to an embodiment of the present invention. Fig. 5 is a partial schematic view of a portion I in fig. 4 according to an embodiment of the present invention. Fig. 6 is a sectional view of a cooking apparatus according to an embodiment of the present invention.

As shown in fig. 1 to 6, an embodiment of the present invention provides a cooking device 100, which includes 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 together form a receiving 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 chamber 41 close to one side of the bottom shell and a second chamber 42 close to one side of the cover plate 30, and the partition plate 50 is provided with a first communication hole 51 for communicating the first chamber 41 and the second chamber 42.

The first chamber 41 is provided with a sub-separation plate 411, the sub-separation plate 411 divides the first chamber 41 into a first sub-chamber 412 and a second sub-chamber 413, and the sub-separation plate 411 is provided with a second communication hole 414 for communicating the first sub-chamber 412 and the second sub-chamber 413.

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 sub-cavity 412, and the air outlet hole 21 is communicated with the second cavity 42.

The heat dissipation fan 60 is located in the first sub-chamber 412, at least two heating members are respectively located in the second sub-chamber 413 and the second chamber 42, the heat dissipation air flow enters the accommodating chamber 40 through the air inlet 11, sequentially flows through the heat dissipation fan 60, the heating members located in the second sub-chamber 413 and the heating members located in the second chamber 42 flow out through the air outlet 21.

It should be noted that the cooking device 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 device 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 of the cooker 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.

Wherein, a partition plate 50 is disposed in the accommodating cavity 40, and the partition plate 50 can divide the accommodating cavity 40 into a first chamber 41 and a second chamber 42, and the first chamber 41 is located below the second chamber 42, i.e. at a side close to the lower cover 10. Therefore, the partition plate 50 can be used for effectively planning the accommodating space in the accommodating cavity 40, so that subsequent structural members can be conveniently installed, meanwhile, the partition plate 50 can effectively separate the first cavity 41 and the second cavity 42, mutual influence of the structural members in the two cavities is avoided, and the structural stability of the cooking device 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 chamber 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 end of the lower mounting column far away from the accommodating cavity 40 is also provided with a foot pad 12, the lower mounting column can also play a role of supporting the foot of the cooking device 100, the foot pad 12 can reduce the friction between the cooking device 100 and the placing table top, and play a role of buffering and shock absorption to protect the cooking device 100. This callus on the sole 12 can be rubber pad or resin pad etc. and the cavity has been seted up in this lower erection column, and the tip at the cavity is installed to callus on the sole 12, can also set up damping spring isotructure in the cavity, and damping spring can be connected with callus on the sole 12 to the effect of reinforcing shock attenuation and buffering.

Further, in the present embodiment, the sub-separation plate 411 is disposed in the first chamber 41, so as to divide the first chamber 41 into the first sub-chamber 412 and the second sub-chamber 413, and such an arrangement can effectively plan the accommodating space in the first chamber 41 by using the sub-separation plate 411, thereby facilitating the installation of the structural member. Wherein, the first sub-chamber 412 can communicate with the air inlet hole 11 as the main air inlet area in the accommodating chamber 40. The second sub-chamber 413 can be used for placing the piece that generates heat to avoid generating heat structurally and interfering with cooling fan 60 between, the volume of second sub-chamber 413 is less than the volume of second chamber 42 simultaneously, consequently in the second sub-chamber 413 that the piece that will generate heat set up, can reduce the distribution area that generates heat and dispel the heat wind around the piece and flow, make the heat dissipation wind flow concentrate to distribute around the piece that generates heat, strengthen the radiating effect to the piece that generates heat.

Specifically, referring to fig. 4, a heat dissipation fan 60 and at least two heating elements are disposed in the accommodating chamber 40. The heat dissipation fan 60 can drive the flow of the heat dissipation wind in the accommodation 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 device 100 is an electric ceramic oven, the coil panel 70 can be replaced with a heating resistance wire. Wherein the circuit board 80 may be located in the second sub-chamber 413 of the first chamber 41 and the coil disk 70 may be located in the second chamber 42. Different heating members are respectively arranged in different chambers, on one hand, the two chambers can be separated by the partition plate 50, and therefore mutual interference between the two chambers in structure is effectively reduced. On the other hand, the first chamber 41 and the second chamber 42 separated by the partition plate 50 have a much smaller volume than the original accommodating chamber 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 prevent the heat dissipation wind flows in the first chamber 41 and the second chamber 42 from interfering with each other, thereby ensuring the heat dissipation effect of the respective heat generating members in the two chambers.

Further, the partition plate 50 is provided with a first communication hole 51, and the first communication hole 51 can communicate the second sub-chamber 413 of the first chamber 41 and the second chamber 42, while a second communication hole 414 is provided between the first sub-chamber 412 and the second sub-chamber 413. When the heat dissipation fan 60 works, the heat dissipation air flow can sequentially flow through the air inlet 11, the first sub-chamber 412, the second sub-chamber 413, the second chamber 42 and the air outlet 21, so that the heat dissipation air flow is ensured to sequentially flow through the heat dissipation fan 60, the circuit board 80 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 chamber 42 close to the cover 30 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, the power line 13 led out from the circuit board 80 can penetrate through the mounting through hole in the middle frame 20, therefore, the circuit board 80 is arranged in the second sub-chamber 413 in the first chamber 41 close to one side of the lower cover 10, the leading-out of the power line 13 of the circuit board 80 can be facilitated, meanwhile, the power line 13 is far away from the cover plate 30, and the power line 13 can be prevented from being damaged by the coil panel 70 at high temperature. Meanwhile, the power cord 13 is located near the lower cover 10, so that the user can see away from the line of sight of the user, thereby improving the user experience of the cooking device 100.

As an achievable embodiment, the heat dissipation fan 60 is attached to the inner wall surface of the bottom case. It should be noted that the heat dissipation fan 60 may be connected to an inner wall surface of the lower cover 10, or connected to an inner wall surface of the middle frame 20 located in the first chamber 41, so that the difficulty in installing the heat dissipation fan 60 may be reduced, and the installation stability of the heat dissipation fan 60 may be improved.

As another realizable embodiment, in the present embodiment, as shown in fig. 3, the heat dissipation fan 60 is connected to the surface of the partition plate 50 on the side close to the first sub-chamber 412. It should be noted that the partition plate 50 is used as a main structure for fixing the heat dissipation fan 60, and when assembling, the heat dissipation fan 60 and the partition plate 50 can be preassembled first, and then the two are installed together into the accommodating cavity 40, so that the preassembly of the partition plate 50 and the heat dissipation fan 60 is realized, and the assembling difficulty of the cooking device 100 is reduced. Based on the structure that the air inlet holes 11 need to be arranged on the lower cover 10, only the heat dissipation fan 60 is adjusted and installed on the partition plate 50, and the influence on the arrangement of the air inlet holes 11 can be effectively reduced.

Referring to fig. 2, the air inlet 11 is located on the lower cover 10, and the air outlet 21 is located on a side of the middle frame 20 close to the cover plate 30. The height of the air inlet hole 11 is lower than that of the air outlet hole 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.

Wherein, the center 20 is the annular structure, and the exhaust vent 21 has a plurality ofly, and a plurality of exhaust vents 21 interval distribution on center 20, and the distribution area of exhaust vent 21 on center 20 is the second annular region, and the central angle scope in second annular region is 100-. 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.

In this embodiment, the cooling fan 60 may be a centrifugal fan, the cooling fan 60 includes a fan housing and a fan body, the fan body is located in the fan housing, the fan housing is provided with an air inlet 61 and an air outlet 62, the air inlet 61 is located on two opposite sides of the fan body in the vertical direction, and the air outlet 62 is located on the side edge of the fan body. The intake port 61 faces at least part of the intake opening 11, and the outtake port 62 faces the second communication hole 414.

It should be noted that, when the cooking device 100 is in operation, the upper surface and the lower surface of the heat dissipation fan 60 may be used as the air inlet 61, and the side edge facing the second communication hole 414 may be provided with the air outlet 62, so as to realize the axial air inlet and side air outlet modes of the centrifugal fan.

Further, the air inlet holes 11 include a plurality of first air inlet holes 111 and a plurality of second air inlet holes 112, a projection of the heat dissipation fan 60 on the lower cover 10 covers all of the first air inlet holes 111, and the second air inlet holes 112 are located at an outer periphery of the projection of the heat dissipation fan 60 on the lower cover 10. The plurality of second air inlet holes 112 are distributed on the lower cover 10 at intervals, and the distribution area of the second air inlet holes 112 on the lower cover 10 is a first annular area, and the central angle range of the first annular area is 100 degrees and 200 degrees.

Based on the first air inlet holes 111 in the projection area of the heat dissipation fan 60, the heat dissipation air flow entering from the first air inlet holes 111 can directly enter from the air inlets 61 on the lower surface of the heat dissipation fan 60. The heat dissipating air entering through the second air inlet openings 112 can flow along the first sub-chamber 412 and flow to the heat dissipating fan 60, and enter through the air inlet openings 61 on the upper surface and the lower surface of the heat dissipating fan 60, respectively. The arrangement of the first air inlet holes 111 and the second air inlet holes 112 can increase the amount of inlet air of the accommodating chamber 40, so that a large amount of heat dissipation air with low temperature can enter the accommodating chamber 40, thereby optimizing the heat dissipation effect.

Referring to fig. 6, the heat dissipation fan 60 and the circuit board 80 are both connected to the surface of the partition plate 50 near the side of the lower cover 10, and the air inlet 61 of the heat dissipation fan 60 near the side of the lower cover 10 and the circuit board 80 are both spaced from the lower cover 10 by a first distance. The air inlet 61 of the heat dissipation fan 60 on the side close to the cover plate 30 has a second distance from the surface of the partition plate 50 on the side close to the lower cover 10.

It should be noted that, the heat dissipation fan 60 and the circuit board 80 are disposed on the partition plate 50, so that it is avoided that the heat dissipation fan and the circuit board occupy more installation space of the lower cover 10 when the heat dissipation fan and the circuit board are mounted on the lower cover 10, a space is reserved for the lower cover 10, and the structure of the air inlet 11 is provided, and the bearing pressure of the lower cover 10 can be reduced. The first distance can ensure that the heat dissipation fan 60 and the space between the circuit board 80 and the lower cover 10 can be provided for the heat dissipation air flow to pass through, and the flow resistance of the heat dissipation air flow is reduced.

Meanwhile, the first interval can ensure smooth air intake of the air inlet 61 on one side of the lower surface of the cooling fan 60, and the second interval can ensure that the space between one side of the upper surface of the cooling fan 60 and the partition plate 50 is used for cooling air flow to pass through, so that the flow resistance of the cooling air flow is reduced, and meanwhile, smooth air intake of the air inlet 61 on one side of the upper surface of the cooling fan 60 is ensured.

The coil disk 70 is attached to the surface of the partition plate 50 on the side close to the cover plate 30 with a third gap between the coil disk 70 and the cover plate 30. Alternatively, the coil disk 70 is connected to the cover plate 30 on the side close to the accommodating cavity 40, and a fourth distance is provided between the coil disk 70 and the partition plate 50. Similar to the first and second distances, a third distance is reserved between the coil disc 70 and the cover plate 30, or a fourth distance is reserved between the coil disc 70 and the partition plate 50, so that the heat dissipation air flow can be ensured to flow smoothly in the second chamber 42, and the flow resistance can be reduced.

It should be noted that the first pitch, the second pitch and the third pitch may be set according to the thickness of the cooking device 100, and the specific values are not limited in this embodiment.

With continued reference to fig. 6, the heat dissipation fan 60 is attached to the partition plate 50 at a first side adjacent to the cooker 100, the air inlet hole 11 is formed at a first side of the lower cover 10 adjacent to the cooker 100, and the air outlet hole 21 is formed at a first side of the middle frame 20 adjacent to the cooker 100. The first communication hole 51 is formed on the separation plate 50 adjacent to the second side of the cooker 100. The first side and the second side are opposite sides of the cooker 100, respectively.

Based on the above arrangement, the heat dissipation air flows in the first chamber 41, enters the first sub-chamber 412 from the air inlet hole 11 on the first side, flows to the second communication hole 414 on the second side, passes through the second communication hole 414, and enters the second sub-chamber 413. In the second sub-chamber 413, the first signal flows through the circuit board 80, flows to the first communication hole 51, passes through the first communication hole 51, and enters the second chamber 42. In the second chamber 42, the air flows from the second side to the first side, passes through the coil disk 70, 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 dissipation wind in the accommodating chamber 40 is sufficiently contacted with the circuit board 80 in the second sub-chamber 413 and the coil disk 70 in the second chamber 42. The heat dissipation effect of the heat dissipation wind flow on the accommodating cavity 40 is enhanced through the above process.

Referring to fig. 2 and 3, the lower cover 10 is provided with a first partition 14, an end of the first partition 14 extends toward the cover 30, a surface of the partition 50 on a side close to the lower cover 10 is provided with a second partition 52, and an end of the second partition 52 extends toward the lower cover 10. The end of the first partition 14 and the end of the second partition 52 abut to form a sub-partition 411. It should be noted that the difficulty of arranging the sub-partition 411 by splicing the first partition 14 and the second partition 52 together can be overcome, and the first partition 14 and the second partition 52 can be used as a reinforcing rib to increase the mechanical strength of the lower cover 10 and the partition 50, respectively.

Wherein the second communication hole 414 is located on the first separator 14. Alternatively, the second communication hole 414 is located on the second partition plate 52. Or, the first partition 14 is provided with a first notch, the second partition 52 is provided with a second notch, and the first notch and the second notch are oppositely arranged and mutually spliced to form the second communication hole 414. In practical use, the user can adjust the position and arrangement of the second communication hole 414 according to the requirement, so as to reduce the difficulty of arranging the second communication hole 414 and improve the structural flexibility of the cooking device 100.

Referring to fig. 5, the partition plate 50 is provided with a communication notch 53, and the communication notch 53 and the inner wall surface of the middle frame 20 together form a first communication hole 51. It should be noted that the communication notch 53 is located on the partition plate 50, that is, the rest of the partition plate 50 is in contact with the inner wall surface of the middle frame 20, a gap is formed between the communication notch 53 and the inner wall surface of the middle frame 20, the gap can form the first communication hole 51, and the arrangement mode of the first communication hole 51 can reduce the arrangement difficulty.

Wherein, be provided with control assembly 90 on the center 20, control assembly 90 includes mutual electric connection's control 91 and control panel 92, is provided with the mounting hole on the drain pan, and control 91 is located the mounting hole, and at least part control 91 exposes in the outside of holding chamber 40. The control board 92 of the control assembly 90 can be connected to the circuit board 80, and the operation state of the cooking device 100 can be controlled by the control member 91.

This control panel 92 can set up in first cavity 41, second cavity 42 or intercommunication breach 53 as required, and when control panel 92 was located this intercommunication breach 53, intercommunication breach 53 can have the demand of installation and ventilation concurrently, optimizes the space utilization in the holding chamber 40, and simultaneously, the in-process that the heat dissipation distinguished and admirable flows through can cool down control assembly 90 to guarantee control assembly 90's radiating effect.

Referring to fig. 3, 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 close to one side of the lower cover 10, and the plurality of heat dissipation fins 82 are distributed on a 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 outlet 62 of the heat dissipation fan 60, and an air outlet end of the heat dissipation air duct faces the first communication hole 51.

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 converge with the heat dissipation air flow in the first chamber 41. Specifically, the heat dissipation air flow at the air outlet 62 of the heat dissipation fan 60 is gathered to the position of the circuit board 80, so that the heat dissipation effect on the circuit board 80 is improved. Meanwhile, the heat dissipation wind flow is guided to flow to the first communication hole 51, and the process of flowing the heat dissipation wind flow to the first communication hole 51 is accelerated.

As an achievable embodiment, an auxiliary fan is provided in the accommodating chamber 40, the auxiliary fan is provided near the first communication hole 51, the auxiliary fan is provided near the second communication hole 414, and/or the auxiliary fan is provided near the air outlet 21. The auxiliary fan can accelerate the flow velocity of the heat dissipation air flow 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 the cooking apparatus 100, optionally, the first chamber 41 is located right below the second chamber 42, the height of the first chamber 41 accounts for 20-80% of the height of the accommodating chamber 40, and the height of the second chamber 42 accounts for 20-80% of the height of the accommodating chamber 40. The volume of first sub-chamber 412 is in the range of 20-80% of the volume of first chamber 41 and the volume of second sub-chamber 413 is in the range of 20-80% of the volume of first chamber 41. The above arrangement can optimize the space utilization rate in the accommodating chamber 40, facilitate the flow of the heat dissipating wind flow, and improve the structural rationality and heat dissipating effect of the cooker 100. In practical use, a user may set specific values of the heights of the first chamber 41 and the second chamber 42 according to specific heights of the accommodating cavity 40 and thicknesses of the circuit board 80 and the coil panel 70, and set specific values of the volumes of the first sub-chamber 412 and the second sub-chamber 413 according to the volumes of the heat dissipation fan 60 and the circuit board 80, which is not limited in this embodiment.

Further, the temperature measuring part 31 can be arranged at a position close to the cover plate 30 in the second chamber 42, the temperature measuring part 31 can be electrically connected with the circuit board 80 in the first chamber 41, the temperature measuring part 31 can obtain the temperature transmitted by the pot 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 obtaining the temperature, so that the temperature control of the cooker 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 device is 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 an accommodating 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 chamber (41) close to one side of the bottom shell and a second chamber (42) close to one side of the cover plate (30), and a first communication hole (51) for communicating the first chamber (41) with the second chamber (42) is formed in the partition plate (50);

a sub-separation plate (411) is arranged in the first chamber (41), the sub-separation plate (411) separates the first chamber (41) into a first sub-chamber (412) and a second sub-chamber (413), and a second communication hole (414) for communicating the first sub-chamber (412) with the second sub-chamber (413) is formed in the sub-separation plate (411);

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 sub-cavity (412), and the air outlet hole (21) is communicated with the second cavity (42);

the heat dissipation fan (60) is located in the first sub-chamber (412), at least two the piece that generates heat is located respectively the second sub-chamber (413) with in the second chamber (42), the heat dissipation wind stream by fresh air inlet (11) get into holding chamber (40), flow through in proper order heat dissipation fan (60), be located in the second sub-chamber (413) generate heat the piece and be located in the second chamber (42) generate heat the piece, by exhaust vent (21) flows out.

2. The cooking apparatus as set forth in claim 1, wherein the heat dissipation fan (60) is attached to an inner wall surface of the bottom case.

3. The cooking apparatus according to claim 1, wherein the heat dissipation fan (60) is attached to a face of the partition plate (50) on a side close to the first sub-chamber (412).

4. The cooking apparatus according to claim 3, wherein the bottom case comprises a lower cover (10) and a middle frame (20), the middle frame (20) is connected to the lower cover (10), and the middle frame (20) is connected between the cover plate (30) and the lower cover (10);

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

5. The cooking apparatus according to claim 4, wherein the heat generating member includes a coil disk (70) and a circuit board (80), the circuit board (80) being located in the second sub-chamber (413), the coil disk (70) being located in the second chamber (42).

6. The cooking device according to claim 5, wherein the heat dissipation fan (60) is a centrifugal fan, the heat dissipation fan (60) comprises a fan housing and a fan body, the fan body is located in the fan housing, an air inlet (61) and an air outlet (62) are formed in the fan housing, the air inlet (61) is located on two opposite sides of the fan body in the vertical direction, and the air outlet (62) is located on a side edge of the fan body;

the air inlet (61) faces at least part of the air inlet hole (11), and the air outlet (62) faces the second communication hole (414).

7. The cooking apparatus according to claim 6, wherein the heat dissipation fan (60) and the circuit board (80) are both attached to a face of the partition plate (50) on a side close to the lower cover (10), and the air inlet (61) of the heat dissipation fan (60) on the side close to the lower cover (10) and the circuit board (80) are both spaced from the lower cover (10) by a first distance;

and a second distance is reserved between the air inlet (61) of the heat dissipation fan (60) close to one side of the cover plate (30) and the surface of the partition plate (50) close to one side of the lower cover (10).

8. The cooking apparatus according to any one of claims 5 to 7, wherein the coil disk (70) is attached to a face of the separation plate (50) on a side close to the lid plate (30), the coil disk (70) having a third spacing from the lid plate (30);

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 fourth distance is reserved between the coil disc (70) and the partition plate (50).

9. The cooking apparatus according to any one of claims 4 to 7, wherein the heat dissipation fan (60) is attached to the partition plate (50) at a first side thereof adjacent to the cooking apparatus, the air inlet hole (11) is located at a first side thereof adjacent to the cooking apparatus on the lower cover (10), and the air outlet hole (21) is located at a first side thereof adjacent to the cooking apparatus on the middle frame (20);

the first communicating hole (51) is positioned on the separation plate (50) near the second side of the cooker;

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

10. The cooking apparatus according to any one of claims 4 to 7, wherein a first partition plate (14) is provided on the lower cover (10), an end of the first partition plate (14) extends toward the cover plate (30), a second partition plate (52) is provided on a face of the partition plate (50) on a side close to the lower cover (10), and an end of the second partition plate (52) extends toward the lower cover (10);

the end of the first partition (14) and the end of the second partition (52) abut to form the sub-partition (411).

11. The cooking apparatus according to claim 10, wherein the second communication hole (414) is located on the first partition (14);

or, the second communication hole (414) is located on the second partition plate (52);

or, a first gap is arranged on the first clapboard (14), a second gap is arranged on the second clapboard (52), the first gap and the second gap are oppositely arranged and are spliced with each other to form the second communication hole (414).

12. The cooking apparatus according to any one of claims 4 to 7, wherein a communication notch (53) is provided in the partition plate (50), and the communication notch (53) and an inner wall surface of the middle frame (20) together form the first communication hole (51).

13. The cooking device according to claim 12, wherein a control assembly (90) is disposed on the middle frame (20), the control assembly (90) comprises a control member (91) and a control plate (92) which are electrically connected to each other, a mounting hole is disposed on the bottom shell, 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 plate (92) is located in the first chamber (41), the second chamber (42), or the communication gap (53).

14. The cooking apparatus according to any one of claims 4 to 7, wherein the air inlet holes (11) include a plurality of first air inlet holes (111) and a plurality of second air inlet holes (112), a projection of the heat dissipation fan (60) on the lower cover (10) covers all of the first air inlet holes (111), and the second air inlet holes (112) are located at an outer periphery of a projection of the heat dissipation fan (60) on the lower cover (10);

the plurality of second air inlet holes (112) are distributed on the lower cover (10) at intervals, the distribution area of the second air inlet holes (112) on the lower cover (10) is a first annular area, and the central angle range of the first annular area is 100 DEG and 200 deg.

15. The cooking device as claimed in any one of claims 4 to 7, wherein the middle frame (20) has a ring structure, the air outlet holes (21) are plural, the plural air outlet holes (21) are spaced on the middle frame (20), and the distribution area of the air outlet holes (21) on the middle frame (20) is a second ring-shaped area, and the central angle of the second ring-shaped area is in the range of 100 and 180 degrees.

16. The cooking device according to claim 6 or 7, wherein a heat dissipation assembly is disposed on the circuit board (80), the heat dissipation assembly comprises a heat dissipation base plate (81) and a plurality of heat dissipation fins (82), the heat dissipation base plate (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 base plate (81) at intervals;

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 outlet (62) of the heat dissipation fan (60), and the air outlet end of the heat dissipation air channel faces towards the first connecting hole (51).

17. The cooking apparatus according to any one of claims 1 to 7, wherein an auxiliary blower is provided in the housing chamber (40), said auxiliary blower being disposed close to the first communication hole (51), said auxiliary blower being disposed close to the second communication hole (414), and/or said auxiliary blower being disposed close to the air outlet (21).

18. The cooking apparatus according to any one of claims 1 to 7, wherein the first chamber (41) is located directly below the second chamber (42), the height of the first chamber (41) being in the range of 20 to 80% of the height of the accommodating chamber (40), and the height of the second chamber (42) being in the range of 20 to 80% of the height of the accommodating chamber (40);

the proportion of the volume of the first sub-chamber (412) to the volume of the first chamber (41) is in the range 20-80%, and the proportion of the volume of the second sub-chamber (413) to the volume of the first chamber (41) is in the range 20-80%.

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