CN213955374U

CN213955374U - Heat radiation structure of electric stove

Info

Publication number: CN213955374U
Application number: CN202021958777.6U
Authority: CN
Inventors: 许申生; 陈海兴
Original assignee: Dongguan Hongjin Industrial Co ltd
Current assignee: Anze Foshan Electronics Co ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-08-13
Anticipated expiration: 2030-09-09

Abstract

The utility model discloses a heat dissipation structure of an electric stove, which comprises a heating unit, wherein the lower part of the heating unit is connected with a control unit through at least two heat insulation hanging parts, an air exhaust gap is formed between the control unit and the heating unit to form a hanging basket structure, the air exhaust gap is used for facilitating the air exhaust, the control unit is internally provided with the mixed flow air supply part which is used for transmitting the air outside the control unit to the inside of the control unit and the bottom surface of the heating unit, the utility model has three aspects of heat insulation design of a hanging basket structure, bidirectional air heat transmission and radiation of the mixed flow air supply part and heat conduction and radiation of the radiating piece, the whole equipment is cooled, the heat dissipation efficiency is high, the whole heat dissipation effect of the equipment is greatly enhanced, the advanced aging of components inside the equipment is effectively avoided, the normal service life of the equipment is ensured, and the normal use of the equipment is ensured.

Description

Heat radiation structure of electric stove

Technical Field

The utility model relates to a technical field of kitchen utensil refers in particular to one kind and separates the control unit and the unit that generates heat to through thermal-insulated hanging structure, constitute the heat radiation structure of an electric cooker of hanging flower basket structure that has the clearance of airing exhaust.

Background

The electric stove is a kitchen appliance which utilizes electric heating or electromagnetic elements to heat food, is a product of modern kitchen revolution, does not need open fire to heat, and directly generates heat at the bottom of a pan, so that the heat efficiency is greatly improved, the electric stove is a high-efficiency energy-saving kitchen utensil, is completely different from all traditional kitchen utensils heated by fire, and is safer and more sanitary in the heating process.

At present, the electric cooker on the market generally arranges the control unit and the unit that generates heat in same casing, and the cooperation fan carries out the heat dissipation processing to the control unit, and this kind of structure, the radiating mode is single, though the cooperation radiating part carries out the heat and spreads scattered, however, the heat of equipment during operation is concentrated in the casing, and radiating efficiency is poor, can't in time spread the heat, long-time heat gathering, the ageing of the inside components and parts of easy acceleration equipment, the life of shortening equipment, the normal use of influence equipment.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a heat dissipation structure of an electric cooker, which can effectively isolate the heat between a control unit and a heating unit, reduce the mutual conduction of the heat between the control unit and the heating unit, avoid the mutual interference of the generated heat to the heating unit and the control unit and be beneficial to the air circulation at the control unit; not only can take away the heat generated by the control part during working, but also can take away the redundant heat on the bottom surface of the heating unit; the heat dissipation piece transfers and dissipates the heat generated by the control part when the control part works, and the heat transfer and dissipation of the heat dissipation piece is accelerated by matching with the air which is conveyed by the mixed flow air supply part and performs centrifugal motion; it can be seen that, the utility model discloses a three aspect of the heat dissipation of the heat-proof design of hanging flower basket structure, the two-way air heat dissipation of mixed flow air supply portion and radiating piece, to the whole cooling that dispels the heat of equipment, the radiating efficiency is high, has strengthened the holistic radiating effect of equipment greatly, effectively avoids ageing in advance of the inside components and parts of equipment, has guaranteed the normal life of equipment, has guaranteed the normal use of equipment.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a heat radiation structure of electric cooker, includes the unit that generates heat, the unit below that generates heat is connected with a control unit through two at least thermal-insulated portions of hanging that hang, forms the clearance of airing exhaust between this control unit and the unit that generates heat, constitutes a hanging flower basket structure, and the clearance of should airing exhaust is used for making things convenient for gaseous the discharge, and this control unit embeds has mixed flow air supply portion, and this mixed flow air supply portion is used for transmitting the outside gas of control unit to the control unit inside and the bottom surface of the unit that generates heat.

The heating unit is composed of a tray and at least one electric heating part arranged in the tray, at least two hanging holes are formed in the bottom surface of the tray and are connected with the heat insulation hanging part, the electric heating part is electrically connected with the control unit, at least two disc connecting holes are formed in the edge of the bottom of the tray and are matched with screws to be fixedly connected with a panel.

A regulating part is arranged in the tray of the heating unit and used for regulating the on-off power supply, the firepower and the cooking function, and the regulating part is electrically connected with the control unit; or, the external regulation and control portion of this heating unit, this regulation and control portion are used for adjusting to turn on and off the power, firepower size is adjusted and the culinary art function is adjusted, this regulation and control portion and the control unit electric connection.

The electric heating part of the heating unit is an electromagnetic coil panel or a resistance heating panel, when the electric heating part is the electromagnetic coil panel, at least one magnetic strip or magnetic steel is arranged on the tray provided with the electric heating part, a heat insulation board covers the magnetic strip or the magnetic steel, and the electric heating part is arranged on the heat insulation board.

The heat insulation hanging part comprises a locking piece, a heat insulation sleeve and a gasket, wherein the heat insulation sleeve and the gasket are sequentially sleeved on the locking piece from top to bottom; or the heat insulation hanging part comprises a locking piece, and a heat insulation sleeve and a height limiting piece which are sequentially sleeved on the locking piece from top to bottom, wherein the heat insulation sleeve is arranged at the joint between the locking piece and the heating unit, and the height limiting piece is used for ensuring that an air exhaust gap is formed between the heating unit and the control unit.

The control unit is also composed of an accommodating disc, a control part arranged in one side of the accommodating disc and a heat radiation part arranged on one side of the control part, the control part is electrically connected with the mixed flow air supply part, the bottom surface of the position of the accommodating disc, where the mixed flow air supply part is arranged, is provided with at least one bottom air inlet hole, and the accommodating disc is fixedly connected with the lower end of the heat insulation hanging part.

The beneficial effects of the utility model reside in that: the control unit is hung below the heating unit through the heat insulation hanging part, and an air exhaust gap is formed between the control unit and the heating unit to form a hanging basket structure, so that heat generated when the control unit works is isolated from heat generated when the heating unit works, mutual conduction of heat between the control unit and the heating unit is reduced, mutual interference of the generated heat on the heating unit and the control unit is avoided, and air circulation at the control unit is facilitated; the arrangement of the heat insulation sleeve of the heat insulation hanging part can effectively prevent heat generated when the heating unit works from being transmitted to the control unit through the locking piece; the mixed flow air supply part is arranged in the control unit, and the fan blades of the mixed flow fan can enable air to do centrifugal motion and axial motion, so that the air entering the control unit through the mixed flow air supply part is mixed with two motion forms of axial flow and centrifugation, the air doing centrifugal motion continuously flows to parts in the control unit, heat generated when the control part works is taken away, the air doing axial flow motion continuously flows to the bottom surface of the heating unit and flows out through the air exhaust gap to take away redundant heat on the bottom surface of the heating unit; meanwhile, a heat dissipation piece is arranged at one end of the control part through a connecting piece, heat generated by the control part during working is dissipated through the heat dissipation piece, and the heat dissipation of the heat dissipation piece is accelerated by matching with air which is conveyed by the mixed flow air supply part and moves centrifugally; it can be seen that, the utility model discloses a three aspect of the heat dissipation of the heat-proof design of hanging flower basket structure, the two-way air heat dissipation of mixed flow air supply portion and radiating piece, to the whole cooling that dispels the heat of equipment, the radiating efficiency is high, has strengthened the holistic radiating effect of equipment greatly, effectively avoids ageing in advance of the inside components and parts of equipment, has guaranteed the normal life of equipment, has guaranteed the normal use of equipment.

Drawings

Fig. 1 is a schematic perspective view of an embodiment 1 of the present invention.

Fig. 2 is a schematic perspective view of an embodiment 2 of the present invention.

Fig. 3 is a schematic perspective view of embodiment 3 of the present invention.

Fig. 4 is a schematic sectional structure diagram of the present invention.

Fig. 5 is a schematic structural diagram of the heat sink assembled with the control unit of the present invention.

Fig. 6 is a schematic perspective view of the accommodating tray of the present invention.

Fig. 7 is a schematic view of the three-dimensional structure of the connection relationship between the tray and the magnetic stripe or the magnetic steel of the present invention.

Fig. 8 is a schematic perspective view of the heat insulating hanging part of the present invention.

Fig. 9 is a second perspective view of the heat-insulating hanging part of the present invention.

The reference numbers illustrate:

1-a heat-generating unit; 11-a tray; 111-hanging holes; 112-a regulatory portion; 112 a-a conditioning circuit board; 112 b-digital display screen; 112 c-display supply battery; 112 d-function key; 113-disk connection hole; 114-perforation; 115-a mounting location; 115 a-bump limit; 12-an electrical heating portion; 13-magnetic strip or magnetic steel; 14-a heat insulation plate; 15-a spacer plate; 2-heat insulation hanging part; 21-a locking piece; 22-a heat insulating sleeve; 23-a gasket; 24-a height-limiting member; 3-a control unit; 31-a receiving disc; 311-bottom air inlet holes; 312-mounting holes; 313-a first mounting slot; 314-a second mounting groove; 315-third mounting groove; 316-side vent hole; 317-line holes; 32-a control section; 321-a main circuit board; 33-a heat sink; 34-a joining member; 35-an auxiliary limit; 36-a wire fixation member; 4-air exhaust gap; 5-mixed flow air supply part.

Detailed Description

The invention is further described below with reference to the drawings in the specification:

as shown in fig. 1-9, the present invention relates to a heat dissipation structure of electric range, including a heating unit 1, the lower portion of the heating unit 1 is connected to a control unit 3 through at least two heat insulation hanging parts 2, an air exhaust gap 4 is formed between the control unit 3 and the heating unit 1, a hanging basket structure is formed, the air exhaust gap 4 is used for facilitating air exhaust, the width of the air exhaust gap 4 is more than 1mm, so as to isolate the heat generated by the control unit 3 during operation from the heat generated by the heating unit 1 during operation, reduce the mutual conduction of heat between the control unit 3 and the heating unit 1, avoid the generated heat interfering the heating unit 1 and the control unit 3 with each other, and also facilitate the air circulation at the control unit 3, so as to improve the heat dissipation effect of the whole structure; the control unit 3 is internally provided with a mixed flow air supply part 5, and the mixed flow air supply part 5 is used for transmitting air outside the control unit 3 to the inside of the control unit 3 and the bottom surface of the heating unit 1; the mixed flow air supply part 5 preferably adopts a mixed flow fan, and the fan blades of the mixed flow fan can enable air to do both centrifugal motion and axial motion, so that the air entering the control unit 3 through the mixed flow air supply part 5 mixes two motion forms of axial flow and centrifugation, the air doing the centrifugal motion continuously flows to the components inside the control unit 3, the heat generated when the components in the control unit 3 work is taken away, the air doing the axial flow motion continuously flows to the bottom surface of the heating unit 1 and flows out through the air exhaust gap 4, and the redundant heat of the bottom surface of the heating unit 1 is taken away.

As shown in fig. 1-4 and 7, the heating unit 1 comprises a tray 11 and at least one electric heating portion 12 disposed inside the tray 11, at least two hanging holes 111 are further formed in the bottom surface of the tray 11, the hanging holes 111 are connected to the heat-insulating hanging portions 2, and the electric heating portion 12 is electrically connected to the control unit 3.

As shown in fig. 3, a control portion 112 is disposed in the tray 11 of the heating unit 1, the control portion 112 is used for adjusting the power supply, the fire power and the cooking function, and the control portion 112 is electrically connected to the control unit 3; or, the heating unit 1 is externally provided with a regulating part 112, the regulating part 112 is used for regulating the on/off power supply, the firepower and the cooking function, the regulating part 112 is electrically connected with the control unit 3, the bottom edge of the tray 11 is provided with at least two tray connecting holes 113, and the tray connecting holes 113 are fixedly connected with a panel (not shown) by matching screws; the control portion 112 includes a control circuit board 112a, and a digital display screen 112b, a display power supply battery 112c, and a function button 112d electrically connected to the control circuit board 112a, respectively, the control circuit board 112a is electrically connected to the control unit 3, the operation mode, the fire power, etc. of the electric furnace are controlled by the function button 112d, the function button 112d may be a mechanical button and/or an induction button, when the function button 112d has a mechanical button, a touch control member is arranged above the function button 112d, the touch control member is embedded on the panel, and when the function button 112d is an induction button, the induction button is embedded on the panel; or, the control portion 112 includes a control circuit board 112a and a touch display screen (not shown), the control circuit board 112a is electrically connected to the control unit 3, the control circuit board controls the working mode and the fire of the electric furnace through the touch display screen, and the touch display screen is embedded on the panel.

As shown in fig. 1-4 and 7, the electric heating portion 12 of the heating unit 1 is an electromagnetic coil panel or a resistance heating panel, at least one through hole 114 is formed on the tray 11 of the electric heating portion 12, the through hole 114 is used for passing a wire, so that the electric heating portion 12 is electrically connected with the control unit 3; when the electric heating part 12 is an electromagnetic coil disk, at least one magnetic stripe or magnetic steel 13 is arranged on a tray 11 provided with the electric heating part 12, a heat insulation plate 14 covers the magnetic stripe or magnetic steel 13, the electric heating part 12 is arranged on the heat insulation plate 14, the magnetic stripe or magnetic steel 13 is arranged and is conveniently arranged to be connected with a pot body bracket (a built-in magnet or a magnetic material) to ensure the stability of the pot body bracket connected on equipment, wherein, the bottom surface of the tray 11 is provided with at least one mounting position 115, the mounting position 115 is provided with more than two convex limiting positions 115a, when the magnetic stripe or magnetic steel 13 is arranged at the corresponding mounting position 115, each convex limiting position 115a is used for preventing the magnetic stripe or magnetic steel 13 from randomly displacing in the horizontal plane, in order to ensure that the magnetic stripe or magnetic steel 13 is stably mounted at the corresponding mounting position 115, the upper end of each convex limiting position 115a can be respectively bent inwards to form a clamping section, the magnetic stripe or magnetic steel 13 is limited in the mounting position 115 through the clamping section, or can be matched with glue for bonding, so as to ensure the stability of the installation of the magnetic strip or the magnetic steel 13; when the control part 112 is built in the heating unit 1, a plurality of bottom air exhaust holes (not shown) are formed on the tray 11 of the heating unit 1, when the mixed flow and delivery part works, part of the air moving in axial flow enters the heating unit 1 through the through holes 114 or the hanging holes 111, and then flows out through the bottom air exhaust holes, so that the heat of the parts except the electric heating part 12 in the heating unit 1 is dissipated; furthermore, a partition plate 15 is vertically arranged between the electric heating part 12 and the regulating part 112 to divide the tray 11 into two areas, wherein one area is provided with the electric heating part 12, and the other area is provided with the regulating part 112, most of heat is blocked by the partition plate, and the heat is prevented from being transmitted to the regulating part 112 to influence the normal use of the regulating part 112.

As shown in fig. 8-9, the heat insulation hanging part 2 includes a locking member 21, and a heat insulation sleeve 22 and a gasket 23 sequentially sleeved on the locking member 21 from top to bottom, the heat insulation sleeve 22 is disposed at the connection position between the locking member 21 and the heating unit 1, specifically, the heat insulation sleeve 22 is disposed at the corresponding hanging hole 111 of the tray 11 of the heating unit 1, the locking member 21 is at least provided with a connection section (not shown) at the lower end thereof, the locking member 21 and the connection section are arranged in a step shape, the diameter of the connection position between the locking member 21 and the connection section is larger than that of the connection section, and when the connection section is connected to the control unit 3, an air exhaust gap 4 is formed between the heating unit 1 and the control unit 3; or, the heat insulation hanging part 2 comprises a locking piece 21, and a heat insulation sleeve 22 and a height limiting piece 24 which are sequentially sleeved on the locking piece 21 from top to bottom, the heat insulation sleeve 22 is arranged at the joint between the locking piece 21 and the heating unit 1, and the height limiting piece 24 is used for ensuring that an air exhaust gap 4 is formed between the heating unit 1 and the control unit 3; the cross section of the heat insulation sleeve 22 is in a T shape, the outer diameter of the lower end of the heat insulation sleeve 22 is larger than the diameter of the corresponding hanging hole 111, so that the connection stability between the heat insulation sleeve 22 and the hanging hole 111 is ensured, heat conducted through the tray 11 is isolated through the heat insulation sleeve 22, and the situation that the heat on the tray 11 is directly conducted to the locking piece 21 to influence the connection stability of the locking piece 21 and the control unit 3 is avoided; the locking member 21 is preferably a bolt, which is easy to obtain and low in cost, and can stably suspend the control unit 3 under the heating unit 1, however, the locking member 21 here can also be designed and customized according to the structural requirements of the product, so as to ensure that the heating unit 1 and the control unit 3 form the air exhaust gap 4 when the locking member 21 is connected between the heating unit 1 and the control unit 3, and therefore, the specific structure and selection type of the locking member 21 are not limited herein.

As shown in fig. 4-6, the control unit 3 further comprises an accommodating disc 31, a control part 32 disposed in one side of the accommodating disc 31, and a heat sink 33 disposed in one side of the control part 32, the control part 32 is electrically connected to the mixed flow air-supplying part 5, at least one bottom air inlet hole 311 is formed in the bottom surface of the accommodating disc 31 at the position where the mixed flow air-supplying part 5 is disposed, and the accommodating disc 31 is fixedly connected to the lower end of the heat-insulating suspended part 2; the air exhaust gap 4 is a gap formed between the upper end surface of the accommodating disc 31 and the lower bottom surface of the tray 11 of the heating unit 1, wherein the accommodating disc 31 of the accommodating disc 31 is preferably circular, the diameter of the accommodating disc 31 is preferably 150-300 mm, and the size of the accommodating disc 31 is generally determined according to the product shape design, and is not limited herein; the edge of the inner side of the containing disc 31 is concavely provided with at least two mounting holes 312, each mounting hole 312 is correspondingly connected with the locking piece 21 of the heat insulation hanging part 2, the containing disc 31 is internally provided with at least a first mounting groove 313, a second mounting groove 314 and a third mounting groove 315, the first mounting groove 313 is connected with the control part 32, the second mounting groove 314 is connected with the mixed flow air supply part 5, the third mounting groove 315 is connected with the heat dissipation part 33, the bottom air inlet hole 311 is arranged on the bottom surface of the second mounting groove 314, in order to improve the air exhaust effect of the containing disc 31, the side air exhaust holes 316 can be arranged on the side wall of the containing disc 31, the shape and the number of the side air exhaust holes 316 can be configured according to the design requirement of the product structure, and are not self-limited; the control part 32 is composed of a main circuit board 321 and a control circuit (not shown) integrated on the main circuit board 321, the control circuit is electrically connected with the mixed flow air supply part 5, the electric heating part 12 of the heating unit 1 and the regulation and control part 112, and a microcontroller (not shown) is arranged in the control circuit and is used for regulating and controlling the mixed flow air supply part 5, the electric heating part 12 and the regulation and control part 112; one end of the heat sink 33 is connected to the main circuit board 321 of the control portion 32 through a connecting member 34, and the other end of the heat sink 33 is fixedly connected to the accommodating disc 31 through an auxiliary limiting member 35, specifically, the accommodating disc 31 is convexly provided with an auxiliary screw hole (not shown), and the auxiliary screw hole is fixedly connected to the auxiliary limiting member 35 by a screw; through the arrangement of the joint piece 34, the heat dissipation piece 33 can be stably connected to the main circuit board 321, and the heat generated by the main circuit board 321 during operation can be more directly and effectively dissipated by the heat dissipation piece 33, so as to achieve a better heat dissipation effect, specifically, one end of the joint piece 34 is fixedly connected with the main circuit board 321 through a screw, and the other end of the joint piece 34 is fixed on the bottom surface of the heat dissipation piece 33 through a screw; still open on the lateral wall of this holding dish 31 and make wired hole 317, this line hole 317 is used for wearing to establish the power cord, and the position of establishing corresponding line hole 317 in this holding dish 31 is equipped with a solidus piece 36, and this solidus piece 36 can avoid the power cord to be outwards dragged by limited, and leads to the power cord wiring terminal to break away from control portion 32, has ensured that equipment normally circular telegram, power cord one end and main circuit board 321 electric connection, and this power cord other end is equipped with power plug, connects the socket of area life electricity through power plug.

When in use, the cooking utensil is arranged above the equipment, the equipment is opened through the regulating part 112, a user regulates and controls the working mode and the fire power of the equipment through the regulating part 112 according to the use requirement, at the moment, the control part 32 sends an instruction to the electric heating part 12 according to an electric signal sent by the regulating part 112, so that the electric heating part 12 starts to work and heats the cooking utensil, at the moment, the mixed flow air supply part 5 starts to work under the regulation and control of the control part 32 of the control unit 3, the mixed flow air supply part 5 conveys air into the accommodating disc 31 through the bottom air inlet hole 311 of the accommodating disc 31, at the moment, the air which does centrifugal motion continuously flows to the components inside the control unit 3 and takes away the heat sent by the control part 32 when in work, the air which does axial flow motion continuously flows to the bottom surface of the heating unit 1 and flows out through the air exhaust gap 4 so as to take away the redundant heat of the bottom surface of the heating unit 1, meanwhile, the heat dissipation member 33 dissipates heat generated by the control part 32 during operation, and accelerates heat dissipation of the heat dissipation member 33 by matching with air which is delivered by the mixed flow air supply part 5 and performs centrifugal motion, so as to enhance the overall heat dissipation effect of the equipment; after cooking is finished, the equipment is closed through the regulating part 112, the equipment stops working, at the moment, the mixed flow air supply part 5 continues to operate due to the inertia effect, heat is conducted on the control unit 3 and the heating unit 1, and the equipment stops working until the inertia disappears.

It should be noted that, in the description of the present invention, the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for convenience of description and simplification of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the present invention; furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; unless expressly stated or limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, such as "connected," and may be fixedly connected, removably connected, or integrally connected; can be mechanically or electrically connected; the two elements can be directly connected or indirectly connected through an intermediate medium, and the two elements can be communicated with each other, so that the specific meaning of the terms in the invention can be understood by those skilled in the art according to specific situations; in addition, the parts used in the present invention can be customized according to the description of the specification and the drawings, and are not repeated herein.

It is right only to go up the preferred embodiment of the utility model discloses a it is not right the utility model discloses a scope is injectd, the event is not deviating from the utility model relates to an under the prerequisite of spirit, ordinary engineering technical personnel in the field is right the equivalent change or the decoration that structure, characteristic and principle do, all should fall into the utility model discloses the protection within range of applying for a patent.

Claims

1. The utility model provides a heat radiation structure of electric cooker, includes the unit that generates heat, its characterized in that: the lower part of the heating unit is connected with a control unit through at least two heat insulation hanging parts, an air exhaust gap is formed between the control unit and the heating unit to form a hanging basket structure, the air exhaust gap is used for facilitating air to be exhausted, a mixed flow air supply part is arranged in the control unit, and the mixed flow air supply part is used for transmitting air outside the control unit to the inside of the control unit and the bottom surface of the heating unit.

2. The heat dissipation structure of an electric cooker according to claim 1, wherein: the heating unit is composed of a tray and at least one electric heating part arranged in the tray, at least two hanging holes are formed in the bottom surface of the tray and are connected with the heat insulation hanging part, the electric heating part is electrically connected with the control unit, at least two disc connecting holes are formed in the edge of the bottom of the tray and are matched with screws to be fixedly connected with a panel.

3. The heat dissipation structure of an electric cooker according to claim 2, wherein: a regulating part is arranged in the tray of the heating unit and used for regulating the on-off power supply, the firepower and the cooking function, and the regulating part is electrically connected with the control unit; or, the external regulation and control portion of this heating unit, this regulation and control portion are used for adjusting to turn on and off the power, firepower size is adjusted and the culinary art function is adjusted, this regulation and control portion and the control unit electric connection.

4. The heat dissipation structure of an electric cooker according to claim 2, wherein: the electric heating part of the heating unit is an electromagnetic coil panel or a resistance heating panel, when the electric heating part is the electromagnetic coil panel, at least one magnetic strip or magnetic steel is arranged on the tray provided with the electric heating part, a heat insulation board covers the magnetic strip or the magnetic steel, and the electric heating part is arranged on the heat insulation board.

5. The heat dissipation structure of an electric cooker according to claim 1, wherein: the heat insulation hanging part comprises a locking piece, a heat insulation sleeve and a gasket, wherein the heat insulation sleeve and the gasket are sequentially sleeved on the locking piece from top to bottom; or the heat insulation hanging part comprises a locking piece, and a heat insulation sleeve and a height limiting piece which are sequentially sleeved on the locking piece from top to bottom, wherein the heat insulation sleeve is arranged at the joint between the locking piece and the heating unit, and the height limiting piece is used for ensuring that an air exhaust gap is formed between the heating unit and the control unit.

6. The heat dissipation structure of an electric cooker according to claim 1, wherein: the control unit is also composed of an accommodating disc, a control part arranged in one side of the accommodating disc and a heat radiation part arranged on one side of the control part, the control part is electrically connected with the mixed flow air supply part, the bottom surface of the position of the accommodating disc, where the mixed flow air supply part is arranged, is provided with at least one bottom air inlet hole, and the accommodating disc is fixedly connected with the lower end of the heat insulation hanging part.