CN216822958U - Lid and cooking utensil - Google Patents

Abstract

The utility model provides a cover body and a cooking utensil, wherein the cover body comprises: a cover body; the air outlet device is arranged on the cover body and comprises an air outlet piece and a driving structure for driving the air outlet piece to outlet air; the heating device is arranged on the air outlet side of the air outlet piece; and the heat dissipation device is positioned on one side of the air outlet device in the horizontal direction n, and the air outlet side of the heat dissipation device faces the driving structure. By applying the technical scheme of the utility model, the problem that the baking cover in the prior art is thick can be effectively solved.

Description

Lid and cooking utensil

RELATED APPLICATIONS

The present application claims priority from the chinese patent application entitled "heating device, lid, base, and cooking utensil" filed on even 30/11/2020, application No. 202011376812.8, which is incorporated herein by reference in its entirety.

Technical Field

The utility model relates to the field of small household appliances, in particular to a cover body and a cooking appliance.

Background

At present, a motor, a fan and a heating pipe are sequentially arranged in a baking cover of an air fryer in the market from top to bottom. The motor drives the fan to rotate, and the fan takes away heat generated by the heating pipe to form hot air. The hot air contacts with the food to heat the food, so as to realize the baking of the food.

However, the thickness of the baking cover is thick, which is not favorable for the miniaturization design of the cover body.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a cover body and a cooking utensil, so as to solve the problem that the baking cover in the prior art is thick.

In order to achieve the above object, according to an aspect of the present invention, there is provided a cover including: a cover body; the air outlet device is arranged on the cover body and comprises an air outlet piece and a driving structure for driving the air outlet piece to outlet air; the heating device is arranged on the air outlet side of the air outlet piece; and the heat dissipation device is positioned on one side of the air outlet device in the horizontal direction n, and the air outlet side of the heat dissipation device faces the driving structure.

By applying the technical scheme of the utility model, the driving structure drives the air outlet piece to exhaust air, the air generated by the air outlet piece is blown to the heating device to form hot air, and the hot air flows into the cooking cavity to bake food in the cooking cavity. The heat dissipation device dissipates heat for the driving structure to reduce the temperature rise of the driving structure and ensure the service life of the driving structure. Because the heat dissipation device is positioned on one side of the air outlet device in the horizontal direction n, the heat dissipation device and the air outlet device have an overlapped part in the vertical direction, and the required thickness of the cover body is smaller than the sum of the heights of the driving structure, the air outlet piece and the heat dissipation device, so that the thickness of the cover body can be effectively reduced, and the problem that the thickness of the cover body is thick in the related technology is solved.

Furthermore, the height of the heat dissipation device is less than or equal to that of the air outlet device. The above structure can further reduce the thickness of the cover body.

Furthermore, the heat dissipation device is located on one side of the driving structure in the horizontal direction n, and the height of the heat dissipation device is less than or equal to the height of the driving structure. The upper surface of the heat dissipation device is lower than or flush with the upper surface of the driving structure, and the lower surface of the heat dissipation device is higher than or flush with the lower surface of the driving structure. The thickness that above-mentioned structure made the lid only need be greater than drive structure and air-out piece with can to further reduce the thickness of lid.

Furthermore, the air outlet member is a fan, and the driving structure is a motor located above the fan. The structure is simple and the cost is low.

Further, the heat dissipation device is a heat dissipation fan. The structure has larger air outlet amount compared with a radiating fan, thereby ensuring better radiating effect and ensuring the service life of the motor.

Furthermore, the cover body is provided with a heat dissipation cavity and a heating cavity which are arranged up and down, the heating device and the air outlet piece are positioned in the heating cavity, and the driving structure and the heat dissipation device are positioned in the heat dissipation cavity. The structure can effectively separate the heat dissipation device from the heating cavity, thereby reducing the temperature rise of the heat dissipation device and ensuring the service life of the heat dissipation device.

Furthermore, the cover body comprises an outer cover and a lining cover positioned in the outer cover, the lining cover divides the space in the outer cover into a heat dissipation cavity and a heating cavity, and the heat dissipation device and the driving structure are arranged on the mounting plane of the lining cover. The structure is simple and easy to realize.

Furthermore, a positioning structure is arranged between the installation plane and the driving structure. The structure can effectively improve the assembly efficiency and reduce the production cost.

Furthermore, the positioning structure comprises a positioning column and a positioning hole which are matched with each other, one of the positioning column and the positioning hole is arranged on the mounting plane, and the other one of the positioning column and the positioning hole is arranged on the driving structure. The structure is simple, the processing is easy, and the assembly efficiency is high.

According to another aspect of the present invention, there is provided a heating apparatus comprising: the plate body is provided with an overflowing hole; the electric heating film is attached to the first surface of the plate body, and a first avoidance opening opposite to the overflowing hole is formed in the electric heating film.

By applying the technical scheme of the utility model, the electric heating film is attached to the first surface of the plate body, when the electric heating film is electrified, the electric heating film heats the whole heating device, wind blows to the heating device and can generate hot wind, and the hot wind is blown out from the overflowing hole and the first avoiding hole to bake food. In the structure, the electric heating film is thin, and the electric heating film only needs to be attached to the thin base body (plate body), so that the thickness of the whole heating device is thinner than that of a heating pipe in the background technology, the height of the cover body can be effectively reduced, and the miniaturization design of the cover body is realized.

Furthermore, an electrode contact point is arranged on the plate body; above-mentioned structure makes heating device circular telegram through the form of contact, for making heating device circular telegram scheme through the wire on the one hand, can avoid because the phenomenon that heating device can not heat that the wire buckles and damages the heating device that leads to takes place, on the other hand makes heating device make things convenient for the dismouting, is convenient for clean.

And/or, be provided with the mounting hole on the plate body, be provided with the third of dodging the mounting hole on the electric heat membrane and dodge the mouth. The structure ensures that the fastener (screw) does not need to be in direct contact with the electrothermal film with higher temperature, reduces the heat transmitted to the cover body by the fastener and ensures the service life of the cover body.

Furthermore, a second avoiding opening for avoiding the electrode contact point is arranged on the electric heating film. The structure can avoid the direct contact of the electrode and the electrothermal film with higher temperature, thereby ensuring the service life of the electrode.

Further, an electrode contact point is arranged on the plate body, and the minimum distance L1 between the circle center of the mounting hole and the outer edge of the electrode contact point is smaller than or equal to 30mm and larger than 0. Because mounting hole department is fixed through fastener and lid, consequently to the plate body, the deformation volume of the position plate body that is close to the mounting hole more is less, consequently with the mounting hole setting of being close to as far as possible of electrode contact point design, can promote the stability of heating device electricity connection to improve user's use and experience.

Furthermore, the overflowing holes are multiple, and the ratio of the total area of the overflowing holes to the total area of the plate body is smaller than or equal to 1: 2. The structure can ensure the hot air circulation, can ensure that the heating area of the heating film attached to the plate body is large enough, comprehensively considers two variables, and ensures that the heating efficiency is high.

Furthermore, a plurality of groups of overflowing hole groups which are arranged along the circumferential direction of the plate body at intervals are arranged on the plate body, each group of overflowing hole groups comprises a plurality of overflowing holes which are arranged along the radial direction of the plate body at intervals, and the overflowing holes are long holes which extend along the circumferential direction of the plate body. The structure enables the overflowing holes to be uniformly distributed, so that hot air can be uniformly blown into the cooking cavity after being blown out from the overflowing holes, and the uniformity of a thermal field in the cooking cavity is ensured.

Furthermore, the plate body further comprises a second surface opposite to the first surface, and a flow guide structure is arranged on the first surface and/or the second surface. Above-mentioned structure can play the vortex effect for the air current flows more evenly in the culinary art intracavity, improves the homogeneity in warm ground.

Furtherly, the water conservancy diversion structure is by the middle part of plate body to the outside a plurality of arc water conservancy diversion muscle that set up of dispersing of border. Above-mentioned structure makes the wind that blows off by the discharge orifice can flow along arc water conservancy diversion muscle after the contact of arc water conservancy diversion muscle to make hot-blast the rotation, because hot-blast rotation makes each place that hot-blast can reach the culinary art chamber, guarantee that the thermal field in culinary art chamber is even.

Furthermore, the flow guide structure is arranged on the edge of the through hole of the overflowing hole. The structure can directly disturb the hot air flowing through the flow holes without influencing the arrangement of the flow holes, so that directional disturbed flow is realized, and a good disturbed flow effect is ensured. And/or an electric heating film is arranged on the flow guide structure. The structure enables wind which is not in full thermal contact with the electric heating film on the plate body to be in contact with the electric heating film on the flow guide structure, so that secondary heating is achieved, and the heat efficiency is improved.

Further, the water conservancy diversion structure includes the water conservancy diversion muscle, and the bottom of water conservancy diversion muscle is towards the axis L slope of plate body. Above-mentioned structure makes hot-blast middle part that can enough lead the culinary art chamber can lead the edge in culinary art chamber again to make the thermal field in the culinary art intracavity more even.

Furthermore, the plate body further comprises a second surface opposite to the first surface, and the electric heating film is attached to the second surface of the plate body. The electric heating film attached to the second surface is right opposite to food, and the electric heating film can perform heat radiation on the food, so that the heat efficiency is improved, and the cooking time is shortened.

Further, the plate body comprises a bottom plate and a side plate, and the electric heating film is arranged on the surface of the bottom plate and/or the side plate. The electric heating film can be arranged at different positions of the plate body according to actual needs, and the universality of the heating device is improved.

Further, the first surface of the plate body is gradually concave from outside to inside. Above-mentioned structure makes the first surface of plate body have the effect to plate body middle part water conservancy diversion for wind energy enough as much as possible with the plate body on the electric heat membrane contact, blow out after abundant contact, above-mentioned structure can promote heating efficiency effectively, thereby promotes culinary art efficiency.

According to another aspect of the present invention, there is provided a cover comprising: a cover body; the air outlet device is arranged on the cover body; and the heating device is arranged on the cover body and is positioned on the air outlet side of the air outlet device. Since the heating device has the advantage of being thin, the cover body with the heating device also has the advantage.

Furthermore, the air outlet side comprises the lower part, the side part or the upper part of the air outlet device. Above-mentioned structure can be selected according to actual cooking utensil's structure, improves the commonality of lid. And/or the distance between the air outlet side of the air outlet device and the electric heating film is more than or equal to 5 mm. The structure can increase the distance between the air outlet device and the hotter electrothermal film, prevent the air outlet device from overheating and ensure the service life of the air outlet device; on the other hand can reduce the probability that the air-out device scraped the electric heat membrane to guarantee the life of electric heat membrane.

Further, the air outlet device comprises a motor and a fan, the cover body comprises a heat dissipation cavity and a heating cavity located below the heat dissipation cavity, the heating device and the fan are arranged in the heating cavity, the motor is arranged in the heat dissipation cavity, and a motor shaft of the motor extends into the heating cavity to be connected with the fan in a driving mode. The structure enables the motor to be far away from the heating cavity, reduces the temperature rise of the motor and ensures the service life of the motor.

Further, the lid still includes: and the heat dissipation device is arranged in the heat dissipation cavity, the heat dissipation device is positioned on one side of the motor in the horizontal direction n, and the air outlet side of the heat dissipation device faces towards the motor. Thereby above-mentioned structure can dispel the heat to the motor and further reduce the temperature rise of motor to improve the life of motor.

Furthermore, the cover body comprises an upper cover assembly and a reflecting cover, the reflecting cover is arranged below the upper cover assembly, and the heating device is positioned below the reflecting cover and is fixed on the upper cover assembly through the reflecting cover. The structure can reflect the heat radiated by the heating device back to the cooking cavity after contacting the reflecting cover, thereby improving the cooking efficiency; on the other hand, the hot air can be guided, so that the hot air can flow to the edge of the cooking cavity along the reflecting cover, and the heat uniformity in the cooking cavity is improved.

Furthermore, the cover body comprises an outer cover and a lining cover positioned in the outer cover, the outer cover comprises an upper cover and a transparent observation cover arranged on the circumferential outer side of the upper cover, the lining cover is fixedly connected with the upper cover, and the outer edge of the transparent observation cover is clamped between the upper cover and the lining cover. The structure is simple, the assembly is convenient, and the assembly efficiency is improved. In addition, the user can see through the transparent state of observing in the lid observes food to be convenient for cook, improve the culinary art effect.

According to still another aspect of the present invention, there is provided a cover including: a cover body; the air outlet device is arranged on the cover body; the heating device is arranged on the cover body and is positioned on the air outlet side of the air outlet device; and the electrode guide needle is arranged on the cover body and is in point contact with the electrode contact point of the plate body of the heating device. Wherein, an electrode contact point is arranged on the plate body; and/or, the plate body is provided with a mounting hole, and the electric heating film is provided with a third avoiding opening for avoiding the mounting hole. When the two electrode pins are respectively contacted with the two electrode contact points, the circuit on the electrothermal film of the heating device is conducted, thereby realizing heating. The structure is simple and easy to realize.

Furthermore, the electrode needle can be arranged on the cover body in a floating manner, an elastic structure is arranged between the electrode needle and the cover body, and the electrode needle is abutted against the electrode contact point under the action of elastic restoring force of the elastic structure. The structure ensures that the electrode guide pin can be fully contacted with the electrode contact point after the heating device is assembled, thereby ensuring the stability of the electric connection of the heating device.

Furthermore, a stepped hole is formed in the cover body, a butt joint protrusion located above a stepped surface of the stepped hole is arranged on the electrode guide needle, an electrode guide needle pressing cover is arranged on an upper opening of the stepped hole in a covering mode, the elastic structure is a spring which is sleeved outside the electrode guide needle and located in the stepped hole, the first end of the spring is in butt joint with the lower surface of the electrode guide needle pressing cover, and the second end of the spring is in butt joint with the upper surface of the butt joint protrusion. The electrode guide needle gland can press down the electrode guide needle to prevent the electrode guide needle from being separated from the stepped hole upwards; meanwhile, the step surface of the step hole is positioned below the abutting protrusion, and the electrode guide pin can be prevented from being downwards separated from the step hole through the structure. Therefore, the electrode guide pin can be always arranged in the stepped hole in a penetrating mode through the structure, and reliability is high.

Furthermore, a cylinder is arranged on the cover body, and the electrode needle penetrates through the cylinder. The electrode guide pin can be protected by the structure, the contact area of the electrode guide pin with baking gas, dust, water vapor and the like is reduced, and the service life of the electrode guide pin is ensured.

Furthermore, the lower end of the electrode guide needle protrudes out of the lower surface of the cylinder body, and the distance L2 between the lower surface of the cylinder body and the upper surface of the heating device is between 0.2mm and 0.5 mm. If the distance L2 is too small, the electrode needle protecting sleeve is easy to contact with a heating device, so that the electrode needle protecting sleeve is easy to be damaged by heat; if the distance L2 is too large, the area of contact of the baking gas, dust or moisture with the electrode becomes large, resulting in a shortened electrode life.

According to still another aspect of the present invention, there is provided a cooking appliance including: an appliance body; the cover body is arranged on the appliance body in a covering mode. Since the cover body has the advantage of small thickness, the cooking utensil with the cover body also has the advantages.

According to a next aspect of the present invention, there is provided a dock comprising: a base body; the air outlet device is arranged in the base body; and the heating device is arranged in the base body and is positioned on the air outlet side of the air outlet device, and the heating device is the heating device. The structure can reduce the volume of the base, thereby realizing the purpose of miniaturization design of the base.

Furthermore, the air outlet side comprises the lower part, the side part or the upper part of the air outlet device. Above-mentioned structure can be selected according to actual cooking utensil's structure, improves the commonality of base.

According to a final aspect of the present invention, there is provided a cooking appliance comprising: the base is the base; the pot body is arranged on the base body of the base; the cover body is arranged on the pot body. Since the base has the advantage of miniaturization, the cooking appliance with the base also has the advantage.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 shows a schematic perspective view of a first exemplary embodiment of a heating device according to the utility model;

fig. 2 shows a schematic top view of the heating device of fig. 1;

fig. 3 shows an enlarged schematic view of the heating device of fig. 2 at a;

fig. 4 shows a schematic perspective view of a second embodiment of the heating device according to the utility model;

fig. 5 shows a schematic longitudinal sectional view of the heating device of fig. 4;

Fig. 6 shows a schematic perspective view of a third embodiment of a heating device according to the utility model;

fig. 7 shows a schematic longitudinal sectional view of the heating apparatus of fig. 6;

FIG. 8 shows a perspective view of an angle of a cover according to the present invention;

FIG. 9 shows a schematic perspective view of another angle of the cover of FIG. 8;

FIG. 10 is an exploded view of one angle of the cover of FIG. 8;

FIG. 11 is an exploded view at another angle of the cover of FIG. 8;

fig. 12 is a schematic longitudinal sectional view of the cover of fig. 8, in which fig. 12 shows a coupler;

fig. 13 is a schematic longitudinal sectional view of the cap of fig. 8, in which fig. 13 shows an electrode lead;

fig. 14 shows an enlarged schematic view of the cover body of fig. 13 at B;

fig. 15 is an exploded view schematically illustrating a cooking appliance according to the present invention; and

fig. 16 shows a longitudinal sectional view of the cooking appliance of fig. 15.

Wherein the figures include the following reference numerals:

1. a heat dissipation cavity; 2. a heating cavity; 10. a plate body; 11. an overflowing hole; 12. an electrode contact point; 13. mounting holes; 14. a flow guide structure; 15. a first surface; 16. a second surface; 20. an electrothermal film; 21. a first avoidance port; 22. a second avoidance port; 23. a third dodging port; 30. a cover body; 31. an outer cover; 311. an upper cover; 312. a transparent viewing cover; 32. a lining cover; 321. a liner cover body; 322. a barrel; 33. a reflector; 40. an air outlet device; 41. a motor; 411. a motor shaft; 42. a fan; 50. a heating device; 60. a heat sink; 70. an electrode lead needle; 80. an elastic structure; 90. an electrode guide pin gland; 100. an appliance body; 110. a cover body; 120. a coupler; 130. and a positioning column.

Detailed Description

It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 and 2, the heating device of the present embodiment includes: a plate body 10 and an electrothermal film 20. Wherein the plate body 10 is provided with an overflow aperture 11. An electric heating film 20 is attached to the first surface 15 of the plate body 10, and a plurality of first avoidance holes 21 are formed in the electric heating film 20 to face the overflowing holes 11.

By applying the technical scheme of the first embodiment, the electric heating film 20 is attached to the first surface 15 of the plate body 10, when the electric heating film is powered on, the electric heating film 20 heats the whole heating device, wind blows towards the heating device and can generate hot wind, and the hot wind is blown out from the overflowing hole 11 and the first avoiding port 21 to bake food. In the above structure, since the electric heating film 20 is thin, and the electric heating film 20 only needs to be attached to the thin base (plate body 10), the thickness of the whole heating device is thinner than that of the heating tube in the background art, which can effectively reduce the height of the cover body, thereby realizing the miniaturization design of the cover body.

In the related art, the toasting structure generally includes the heating tube as the heating member, and the heating member has a relatively high thickness and a certain installation gap with the cover body during installation, so that a related height is required to be reserved during installation, and thus, the height of the cover body in the related art is relatively high. In addition, for avoiding heating member in the use by direct touching, need set up the safety cover in heating member below, for avoiding the direct touching heating member of safety cover, cause heating member damage, consequently, also need reserve the installation clearance, further increased the whole thickness of lid, be unfavorable for the frivolous miniaturization of lid.

It should be noted that the plate body 10 includes an upper surface and a lower surface, and the first surface 15 may be the upper surface or the lower surface, or may be a side surface.

It should be further noted that there are two schemes for attaching the electric heating film 20 to the first surface 15, one scheme is that all the electric heating films 20 are attached to the first surface 15, in this case, the lower surface of the plate body 10 can be used as a protection structure and faces to the food to be cooked, so that the user can be prevented from directly touching the electric heating films in use, and the possibility of direct scalding is avoided; alternatively, a portion of the electrically heated film 20 is attached to the first surface 15.

As shown in fig. 1 and 2, in the first embodiment, the plate body 10 is provided with electrode contacts 12. Above-mentioned structure makes heating device circular telegram through the form of contact, on the one hand for make heating device circular telegram scheme through the wire, can avoid because the wire is buckled and is damaged the phenomenon that heating device that leads to can not heat and take place, on the other hand makes the convenient dismouting of heating device, is convenient for clean.

As shown in fig. 1 and 2, in the first embodiment, the electrothermal film 20 is provided with a second avoiding opening 22 for avoiding the electrode contact 12. The structure can avoid the direct contact of the electrode with the electrothermal film 20 with higher temperature, thereby ensuring the service life of the electrode.

As shown in fig. 1 to 3, in the first embodiment, a mounting hole 13 is formed on the plate body 10, and a third avoiding opening 23 for avoiding the mounting hole 13 is formed on the electrothermal film 20. The structure ensures that the fastening piece (screw) does not need to be in direct contact with the electrothermal film 20 with higher temperature, reduces the heat transmitted to the cover body by the fastening piece, and ensures the service life of the cover body.

The plate body 10 is easily deformed by heat after a long period of use, and if the plate body 10 is largely deformed, the electrodes are likely not to contact the electrode contact points 12, so that the heating device is not in contact with the electrodes, and thus the heating device cannot be normally heated. In order to solve the above problem, as shown in fig. 2 and 3, in the first embodiment, in the case where the electrode contact 12 and the mounting hole 13 are provided in the plate body 10, the minimum distance L1 between the center of the mounting hole 13 and the outer edge of the electrode contact 12 is not less than 30mm and not more than 0. Because the mounting hole 13 is fixed with the cover body through the fastener, for the plate body 10, the deformation amount of the plate body 10 is smaller at the position closer to the mounting hole 13, and therefore the electrode contact point 12 is designed to be arranged as close to the mounting hole 13 as possible, so that the stability of the electric connection of the heating device can be improved, and the use experience of a user is improved.

As shown in fig. 1 to 3, in the first embodiment, there are a plurality of overflowing holes 11, and the ratio of the total area of the plurality of overflowing holes 11 to the total area of the plate body 10 is less than or equal to 1: 2. I.e. the heating means are actually plate-shaped, not net-shaped. The total area of the overflowing holes 11 and the total area of the plate body 10 are controlled to be less than or equal to 1:2, so that not only can the circulation of hot air be ensured, but also the heating area of the heating film attached to the plate body 10 can be ensured to be large enough, the heat exchange between the air and the heating film is more uniform, two variables are comprehensively considered, and the heating efficiency is ensured to be higher.

As shown in fig. 1 to 3, in the first embodiment, a plurality of groups of flow-passing holes are provided on the plate body 10 at intervals in the circumferential direction thereof, each group of flow-passing holes includes a plurality of flow-passing holes 11 at intervals in the radial direction of the plate body 10, and each flow-passing hole 11 is a long hole extending in the circumferential direction of the plate body 10. The structure enables the overflowing holes to be uniformly distributed, enables the wind to be uniformly contacted with the heating film, enables the hot wind to be uniformly blown into the cooking cavity after being blown out from the overflowing holes, and ensures that a thermal field in the cooking cavity is uniform.

As shown in fig. 1 to 3, in the first embodiment, the plate body 10 includes a bottom plate and a side plate, and the electrothermal film 20 is disposed on the bottom plate. Specifically, if the air outlet side of the air outlet device of the cooking appliance is downward or upward, the generated air is blown downward (or upward) and contacts the heating film on the bottom plate to heat the air. The structure is simple and easy to realize. Of course, if the air outlet side of the air outlet device of the cooking appliance is a side, the generated air is horizontally blown out to the side plate and contacts with the heating film on the side plate to heat the air. Of course, if the air outlet side of the air outlet device of the cooking appliance is downward (upward) and lateral, a part of the generated air is blown downward (or upward) and contacts with the heating film on the bottom plate to heat the air, and another part of the generated air is blown out horizontally onto the side plate and contacts with the heating film on the side plate to heat the air. The structure can arrange the electric heating film 20 at different positions of the plate body 10 according to actual requirements, and the universality of the heating device is improved.

The heating device of the second embodiment is different from the heating device of the first embodiment only in the shape of the plate body, and specifically, as shown in fig. 4 and 5, in the second embodiment, the first surface 15 of the plate body 10 is gradually recessed from the outside to the inside. Above-mentioned structure makes the first surface 15 of plate body 10 have the effect to plate body 10 middle part water conservancy diversion for wind energy enough as much as possible with the plate body 10 on the electric heat membrane 20 contact, blow out after abundant contact, above-mentioned structure can promote heating efficiency effectively, thereby promotes culinary art efficiency.

The heating device of the third embodiment is different from the heating device of the first embodiment only in the structure of the lower surface of the plate body, and specifically, as shown in fig. 6 or fig. 7, in the third embodiment, the plate body 10 further includes a second surface 16 opposite to the first surface 15, and the flow guide structure 14 is disposed on the second surface 16. Above-mentioned structure can play the vortex effect for the air current flows more evenly in the culinary art intracavity, improves the homogeneity in warm ground. Of course, in other embodiments not shown in the figures, the flow directing structures may also be provided on the first surface, or on both the first and second surfaces 16.

As shown in fig. 1 to fig. 3, in the third embodiment, the flow guiding structure 14 is a plurality of arc-shaped flow guiding ribs which are divergently arranged from the middle to the edge of the plate body. Above-mentioned structure makes the wind that blows off by discharge orifice 11 can flow along arc water conservancy diversion muscle after the contact of arc water conservancy diversion muscle to make hot-blast the rotating, because hot-blast rotation makes hot-blast each place that can reach the culinary art chamber, guarantee that the thermal field in culinary art chamber is even.

As shown in fig. 1 to 3, in the third embodiment, the flow guiding structure 14 is disposed at the edge of the through hole of the overflowing hole 11. Above-mentioned structure is under the condition that does not influence the arrangement of discharge orifice 11, and direct convection current carries out the vortex through the hot-blast vortex of discharge orifice, realizes directional vortex, guarantees good vortex effect.

In the third embodiment, the electric heating film 20 is disposed on the diversion structure 14. The structure enables wind which is not in full thermal contact with the electrothermal film 20 on the plate body 10 to be in contact with the electrothermal film 20 on the flow guide structure 14, so that secondary heating is realized, and the heat efficiency is improved.

As shown in fig. 1 to 3, in the third embodiment, the flow guiding structure 14 includes flow guiding ribs, and the bottom of the flow guiding ribs is inclined toward the central axis L of the plate body 10. Above-mentioned structure makes hot-blast middle part that can enough lead the culinary art chamber can lead the edge in culinary art chamber again to make the thermal field in the culinary art intracavity more even.

The plate body 10 further comprises a second surface 16 opposite the first surface 15, and in other embodiments not shown, an electrothermal film may be attached to the second surface 16 of the plate body. The electric heating film attached to the second surface 16 faces the food, and the electric heating film can perform heat radiation on the food by heating, so that the heat efficiency is improved, and the cooking time is shortened. Preferably, in the present embodiment, the first surface 15 is an upper surface, and the second surface 16 is a lower surface.

The present application provides a cover, as shown in fig. 8 to 13, an embodiment of a cover according to the present application includes: a cover body 30, an air outlet device 40 and a heating device 50. Wherein, the air outlet device 40 is disposed on the cover body 30; the heating device 50 is disposed on the cover body 30 and located on the air outlet side of the air outlet device 40, and the heating device 50 is the above-mentioned heating device. Since the heating device has the advantage of being thin, the cover body with the heating device also has the advantage.

As shown in fig. 10 to 13, in the present embodiment, the air outlet side includes a lower portion of the air outlet device 40. The above structure enables the food under the cover to be heated. Of course, in other embodiments not shown in the drawings, the air outlet side may also include the upper side or the side of the air outlet device, and the above structure may be selected according to the structure of the actual cooking appliance, so as to improve the versatility of the cover body.

In this embodiment, the distance between the air outlet side of the air outlet device 40 and the electric heating film 20 is greater than or equal to 5 mm. The structure can increase the distance between the air outlet device 40 and the hotter electrothermal film 20, prevent the air outlet device 40 from overheating and ensure the service life of the air outlet device 40; on the other hand can reduce the probability that air-out device 40 scrapes electric heat membrane 20 to guarantee electric heat membrane 20's life.

As shown in fig. 10 to 12, in the present embodiment, the air outlet device 40 includes a motor 41 and a fan 42, the lid body 30 includes a heat dissipation chamber 1 and a heating chamber 2 located below the heat dissipation chamber 1, the heating device 50 and the fan 42 are disposed in the heating chamber 2, the motor 41 is disposed in the heat dissipation chamber 1, and a motor shaft 411 of the motor 41 extends into the heating chamber 2 to be drivingly connected to the fan 42. The structure enables the motor 41 to be far away from the heating cavity 2, and reduces the temperature rise of the motor 41, thereby ensuring the service life of the motor 41.

As shown in fig. 10 to 12, in the present embodiment, the cover further includes a heat dissipation device 60, the heat dissipation device 60 is disposed in the heat dissipation cavity 1, the heat dissipation device 60 is located on one side of the motor 41 in the horizontal direction n, and an air outlet side of the heat dissipation device 60 faces the motor 41. The structure can radiate the heat of the motor 41, thereby further reducing the temperature rise of the motor 41 and improving the service life of the motor. The heat sink 60 is disposed on one side of the motor 41 in the horizontal direction n, and the space in the heat dissipation chamber can be fully utilized, and the thickness of the cover can be reduced, thereby achieving a compact design. Preferably, in the present embodiment, the height of the heat sink 60 is equivalent to that of the motor 41 to improve the heat dissipation capability while ensuring a small thickness of the cover. The horizontal direction n is not limited to the front-rear direction of the cover shown in fig. 12, and may be the left-right direction of the cover or another direction in the horizontal plane.

As shown in fig. 2 and 13, in the present embodiment, the cover further includes an electrode lead 70, the electrode lead 70 is disposed on the cover body 30, and the electrode lead 70 contacts with the electrode contact point 12 of the plate body 10 of the heating device 50. When the two electrode pins 70 are respectively brought into contact with the two electrode contact points 12, a circuit on the electrothermal film of the heating device 50 is turned on, thereby performing heating. The structure is simple and easy to realize.

As shown in fig. 13, in the present embodiment, the electrode lead 70 is floatingly disposed on the cover body 30, an elastic structure 80 is disposed between the electrode lead 70 and the cover body 30, and the electrode lead 70 abuts against the electrode contact 12 under the elastic restoring force of the elastic structure 80. The above structure enables the electrode lead pin 70 to be sufficiently contacted with the electrode contact point 12 after the heating apparatus is assembled, thereby ensuring the stability of the electrical connection of the heating apparatus.

As shown in fig. 13, in the present embodiment, a stepped hole is formed on the cover body 30, an abutting protrusion located above a stepped surface of the stepped hole is formed on the electrode lead 70, an electrode lead gland 90 is covered at an upper opening of the stepped hole, the elastic structure 80 is a spring sleeved outside the electrode lead 70 and located in the stepped hole, a first end of the spring abuts against a lower surface of the electrode lead gland 90, and a second end of the spring abuts against an upper surface of the abutting protrusion. The electrode lead needle gland 90 can press the electrode lead needle 70 downwards to prevent the electrode lead needle 70 from being separated from the stepped hole upwards; meanwhile, the step surface of the stepped hole is positioned below the abutting protrusion, and the above structure can prevent the electrode lead pin 70 from falling out of the stepped hole. Therefore, the electrode lead pin 70 can be always inserted into the stepped hole by the above structure, and the reliability is high.

As shown in fig. 13, in the present embodiment, a cylindrical body 322 is provided on the cap body 30, and the electrode lead 70 is inserted into the cylindrical body 322. The structure can protect the electrode needle 70, reduce the contact area of the electrode needle 70 and baking gas, dust, water vapor and the like, and ensure the service life of the electrode needle 70. In this embodiment, the hole in the cylinder 322 forms the stepped hole.

As shown in fig. 13 and 14, in the present embodiment, the lower end of the electrode lead 70 protrudes from the lower surface of the cylinder 322, and the distance L2 between the lower surface of the cylinder 322 and the upper surface of the heating unit 50 is between 0.2mm and 0.5 mm. If the distance L2 is too small, the electrode needle protecting sleeve is easy to contact with a heating device, so that the electrode needle protecting sleeve is easy to be damaged by heat; if the distance L2 is too large, the area of contact of the baking gas, dust or moisture with the electrode becomes large, resulting in a shortened electrode life.

As shown in fig. 2 and 13, in the present embodiment, the cover body 30 includes an upper cover assembly and a reflective cover 33, the reflective cover 33 is disposed below the upper cover assembly, and the heating device 50 is located below the reflective cover 33 and fixed on the upper cover assembly through the reflective cover 33. On one hand, the structure can reflect the heat radiated by the heating device 50 back to the cooking cavity after contacting the reflecting cover 33, thereby improving the cooking efficiency; on the other hand, the hot air can be guided, so that the hot air can flow to the edge of the cooking cavity along the reflection cover 33, and the heat uniformity in the cooking cavity is improved.

As shown in fig. 10 to 13, in the present embodiment, the cover body 30 includes an outer cover 31 and a lining cover 32 located inside the outer cover 31, the outer cover 31 includes an upper cover 311 and a transparent viewing cover 312 disposed outside the upper cover 311 in the circumferential direction, the lining cover 32 is fixedly connected to the upper cover 311, and the outer edge of the transparent viewing cover 312 is sandwiched between the upper cover 311 and the lining cover 32. The structure is simple, the assembly is convenient, and the assembly efficiency is improved. In addition, the user can observe the state in the food through the transparent observation cover 312, thereby facilitating cooking and improving the cooking effect. Specifically, in the present embodiment, the liner cover 32 includes a liner cover body 321 and a cylinder 322, and the electrode lead 70 is inserted into the cylinder 322. Preferably, the cap body 321 and the barrel 322 are integrally formed. The structure is simple, parts are reduced, assembling steps are reduced, and assembling efficiency is improved.

In the related art, the air outlet device in the baking cover generally includes an air outlet member, a driving structure for driving the air outlet member to output air, and a heat dissipation device for dissipating heat of the driving structure. The heat dissipation device, the driving structure and the air outlet piece are sequentially arranged from top to bottom. The above structure has a problem that the thickness of the roast cover is thick. In order to solve the above problem, the present application also provides a cover, as shown in fig. 8 to 12, an embodiment of a cover according to the present application includes: the cover body 30, the air outlet device 40, the heating device 50 and the heat sink 60. The air outlet device 40 is disposed on the cover body 30, and the air outlet device 40 includes an air outlet member and a driving structure for driving the air outlet member to output air. The heating device 50 is disposed on the air outlet side of the air outlet member. The heat sink 60 is located at one side of the air outlet device 40 in the horizontal direction n, and the air outlet side of the heat sink 60 faces the driving structure.

Use the technical scheme of this embodiment, drive structure drive air-out spare air-out, will blow to heating device 50 by the wind that the air-out spare produced in order to form hot-blast, hot-blast inflow culinary art intracavity is toasted with the food to the culinary art intracavity. The heat dissipation device 60 dissipates heat for the driving structure to reduce the temperature rise of the driving structure and ensure the service life of the driving structure. Because the heat dissipation device 60 is located at one side of the air outlet device 40 in the horizontal direction n, the heat dissipation device 60 has an overlapping portion with the air outlet device 40 in the vertical direction, and the required thickness of the cover body is smaller than the sum of the height of the driving structure, the height of the air outlet member and the height of the heat dissipation device 60, so that the thickness of the cover body can be effectively reduced, and the problem that the thickness of the cover body is thick in the related art is solved.

As shown in fig. 12, in the present embodiment, the height of the heat sink 60 is less than or equal to the height of the air outlet device 40. The above structure can further reduce the thickness of the cover body.

As shown in fig. 10 and 12, in the present embodiment, the heat sink 60 is located on one side of the driving structure in the horizontal direction n, and the height of the heat sink 60 is equal to or less than the height of the driving structure. Specifically, the upper surface of the heat sink 60 is lower than or flush with the upper surface of the driving structure, and the lower surface of the heat sink 60 is higher than or flush with the lower surface of the driving structure. The thickness that above-mentioned structure made the lid only need be greater than drive structure and air-out piece with can to further reduce the thickness of lid.

As shown in fig. 10 and 12, in the present embodiment, the air outlet is a fan 42, and the driving structure is a motor 41 located above the fan 42. The structure is simple and the cost is low. Of course, in other embodiments not shown in the drawings, the air outlet member may be a centrifugal fan.

As shown in fig. 10 and 12, in the present embodiment, the heat sink 60 is a heat dissipation fan. Compared with a cooling fan, the cooling fan with the structure has larger air outlet quantity, so that the cooling effect is better, and the service life of the motor 41 is ensured.

As shown in fig. 12, in the present embodiment, the cover body 30 has a heat dissipation chamber 1 and a heating chamber 2 arranged up and down, the heating device 50 and the air outlet are located in the heating chamber 2, and the driving structure and the heat dissipation device 60 are located in the heat dissipation chamber 1. The structure can effectively separate the heat dissipation device 60 from the heating cavity 2, thereby reducing the temperature rise of the heat dissipation device 60 and ensuring the service life of the heat dissipation device.

As shown in fig. 10 to 12, in the present embodiment, the cover body 30 includes an outer cover 31 and a lining cover 32 located inside the outer cover 31, the lining cover 32 divides the space inside the outer cover 31 into the heat dissipation chamber 1 and the heating chamber 2, and the heat dissipation device 60 and the driving structure are disposed on the installation plane of the lining cover 32. The structure is simple and easy to realize.

As shown in fig. 10, in the present embodiment, a positioning structure is provided between the mounting plane and the driving structure. The structure can effectively improve the assembly efficiency and reduce the production cost.

As shown in fig. 10, in the present embodiment, the positioning structure includes a positioning pillar 130 and a positioning hole, which are mutually matched, one of the positioning pillar 130 and the positioning hole is disposed on the installation plane, and the other of the positioning pillar 130 and the positioning hole is disposed on the driving structure. Specifically, during assembly, the positioning post 130 is inserted into the positioning hole and then fastened by the fastener. The structure is simple, and the assembly efficiency is high. Preferably, in the present embodiment, the positioning pillars 130 are multiple and are disposed on the installation plane.

As shown in fig. 9 to 13, in the present embodiment, the heating device 50 includes the plate body 10 and the electrothermal film 20. The above structure enables the thickness of the heating device to be reduced, thereby further reducing the thickness of the cover body.

As shown in fig. 15 and 16, the present application also provides a cooking appliance, an embodiment of the cooking appliance according to the present application includes: a device body 100 and a cover 110. The cover 110 is disposed on the device body 100, and the cover 110 is the above cover. Since the cover 110 has an advantage of a small thickness, the cooking appliance having the same also has the above-mentioned advantage.

As shown in fig. 10 to 12, 15, and 16, in the present embodiment, the cover is provided with a coupler 120, and the cover is electrically connected to the appliance body 100 through the coupler. Above-mentioned simple structure for lid detachably sets up on cooking utensil, and the user of being convenient for cleans the lid.

As shown in fig. 15, in the present embodiment, the cooking appliance further includes an electric pressure cooker cover that can be disposed in a replaceable manner with the cover. The electric pressure cooker cover is provided with parts such as an exhaust pipe, a pressure limiting valve and the like, so that high-pressure cooking can be realized. The structure enables a user to realize baking cooking and pressure cooking without purchasing two cooking appliances of an air fryer and an electric pressure cooker, thereby reducing the purchasing cost on one hand and saving the space in a kitchen on the other hand.

The present application further provides a base, an embodiment of a base according to the present application includes: base body, air-out device and heating device. The air outlet device is arranged in the base body; the heating device is arranged in the base body and is positioned on the air outlet side of the air outlet device, and the heating device is the heating device. The structure can reduce the volume of the base, thereby realizing the purpose of miniaturization design of the base. The heating device has the advantage of being thin, so the base with the heating device also has the advantage. If the heating device is arranged at the bottom or the upper part of the base, the overall height of the base can be effectively reduced. If the heating device is arranged on the side part of the base, the whole width of the base can be effectively reduced. The structure can reduce the volume of the cooker body, thereby realizing the miniaturization design of the cooker body. Wherein, the base comprises a pot body, or a pot body is arranged on the base. In another embodiment, the base may be an inverted structure of the cover.

In the present embodiment, the air outlet side includes a lower side, a side or an upper side of the air outlet device 40. Above-mentioned structure can be selected according to actual cooking utensil's structure, improves the commonality of base.

The present application also provides a cooking appliance, the cooking appliance according to the present application includes: the base is the base; the pot body is arranged on the base body of the base; the cover body is arranged on the pot body. Since the base has the advantage of miniaturization, the cooking appliance with the base also has the advantage.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A cover, comprising:

a cover body (30);

the air outlet device (40) is arranged on the cover body (30), and the air outlet device (40) comprises an air outlet piece and a driving structure for driving the air outlet piece to outlet air;

the heating device (50) is arranged on the air outlet side of the air outlet piece;

And the heat dissipation device (60) is positioned on one side of the air outlet device (40) in the horizontal direction n, and the air outlet side of the heat dissipation device (60) faces the driving structure.

2. The cover body according to claim 1, wherein the height of the heat dissipation device (60) is less than or equal to the height of the air outlet device (40).

3. Cover according to claim 1, characterized in that the heat sink (60) is located at one side of the driving structure in the horizontal direction n, and the height of the heat sink (60) is less than or equal to the height of the driving structure.

4. The cover of claim 1, wherein the air outlet is a fan (42), and the driving structure is a motor (41) located above the fan (42).

5. Cover according to claim 1, characterized in that the heat sink (60) is a heat sink fan.

6. A cover body according to claim 1, wherein said cover body (30) has a heat dissipation chamber (1) and a heating chamber (2) which are arranged up and down, said heating device (50) and said air outlet are located in said heating chamber (2), and said driving structure and said heat dissipation device (60) are located in said heat dissipation chamber (1).

7. A cover as claimed in claim 6, characterized in that said cover body (30) comprises an outer cover (31) and a lining cover (32) located inside said outer cover (31), said lining cover (32) dividing the space inside said outer cover (31) into said heat dissipation chamber (1) and said heating chamber (2), said heat dissipation means (60) and said driving structure being arranged on the mounting plane of said lining cover (32).

8. The cover of claim 7, wherein a locating structure is disposed between the mounting plane and the drive structure.

9. The cover as set forth in claim 8, wherein the positioning structure includes a positioning post (130) and a positioning hole, one of the positioning post (130) and the positioning hole is disposed on the mounting plane, and the other of the positioning post (130) and the positioning hole is disposed on the driving structure.

10. A cooking appliance, comprising:

an appliance body (100);

a cover (110) that covers the device body (100), wherein the cover (110) is the cover according to any one of claims 1 to 9.

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