CN217118179U - Heating device and cooking utensil - Google Patents

Abstract

An embodiment of the utility model provides a heating device and cooking utensil, heating device are used for cooking utensil, and heating device includes: a heat generating tube; the heating wire is arranged in the heating tube and comprises a plurality of bending parts; the heating tube is divided into a plurality of sections, and the distances between two adjacent bent parts of the heating wires corresponding to the heating tubes of different sections are different. The interval between two adjacent bending parts of the heating wire corresponding to different sections of heating tubes is different, so that the surface heating power generated by the heating tubes corresponding to different positions is different, and the interval between two adjacent bending parts of the heating wire can be set according to the setting positions of the heating tubes of different sections, and the uniform heating of different positions of the tray body is realized.

Description

Heating device and cooking utensil

Technical Field

The embodiment of the utility model relates to a cooking equipment technical field particularly, relates to a heating device and a cooking utensil.

Background

The cooking utensil in the related art uses the heating tube to directly heat the bottom of the food container, and can arrange an inner heating tube and an outer heating tube at the bottom of the food container in order to improve the heating uniformity of the heating tube to the bottom of the food container.

However, since the power density of the inner and outer heating tubes is the same, the length of the heating tube corresponding to the inner food container per unit area in the inner ring is greater than that of the heating tube corresponding to the outer food container per unit area in the outer ring, which causes the heat of the food container in the inner ring to be higher than that in the outer ring, and thus causes uneven heating of the plate surface.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model aims at solving one of the technical problem that exists among the prior art at least.

To this end, a first aspect of an embodiment of the present invention provides a heating device.

A second aspect of embodiments of the present invention provides a cooking appliance.

In view of this, according to a first aspect of an embodiment of the present invention, there is provided a heating device for a cooking appliance, the heating device including: a heat generating tube; the heating wire is arranged in the heating tube and comprises a plurality of bending parts; the heating tube is divided into a plurality of sections, and the distances between two adjacent bent parts of the heating wires corresponding to the heating tubes of different sections are different.

The embodiment of the utility model provides a heating device includes heating tube and heater, particularly, and the heater is located the heating tube, and what can understand, when being the heater circular telegram, the heater can produce the heat to realize generating heat of heating tube. When installing the heating tube to heating device's a side on the disk body, the heat that the heating tube produced can heat the disk body, and the edible material that will wait to heat is placed when the disk body deviates from a side of heating tube, and the disk body can heat edible material after being heated, realizes eating the culinary art of material.

Further, the heating tube is divided into a plurality of sections, and specifically, the plurality of sections of heating tubes are connected. It can be understood that each section of heating tube is distributed at different positions on the tray body. The interval between two adjacent flexion of the heating wire that the heating tube of different sections corresponds is different to make the surface heating power that the heating tube that different position departments correspond produced different, and then can set up the interval between two adjacent flexion of heating wire according to the position that sets up of different section heating tubes, realize the thermally equivalent of disk body different position departments.

Specifically, different sections of heating tubes are arranged on a side face of the tray body, and it can be understood that under the same power density, the positions of the different sections of heating tubes are different, so that the lengths of the corresponding heating tubes under the unit area are different, the heat generated by the different sections of heating tubes is different, and the heating tubes are heated differently at different positions on the tray body when being electrified. For example, the heating tube includes inner circle heating tube and outer lane heating tube, that is to say, a heating tube twines two circles inside and outside on a side of disk body, under the same condition of inner circle heating tube and outer lane heating tube power density, the length of the inner circle heating tube that the inner circle region corresponds under unit area will be greater than the length of the outer lane heating tube that the inner circle region corresponds under unit area within the outer lane, thereby make the regional heat that produces of disk body that the inner circle heating tube corresponds be greater than the disk body region that the outer lane heating tube corresponds, lead to the disk body to be heated unevenly, and then make edible material be heated unevenly.

The interval between two adjacent bending parts through the heater that corresponds different section heating tubes is different, be about to produce the great interval setting between two adjacent bending parts of the heater of great thermal inner circle heating tube, will produce the less interval setting between two adjacent bending parts of the heater of less thermal outer lane heating tube, thereby reduce the power density of inner circle heating tube, and then reduce the surface heating power of inner circle heating tube, realize the thermally equivalent of disk body different position department, and then improve the homogeneity that edible material was heated.

In addition, utilize a heating tube to arrange on the disk body, can be when realizing disk body different position department thermally equivalent, compare in the correlation technique and utilize two heating tubes to carry out inside and outside arranging, can reduce heating device's manufacturing cost, and then can reduce the manufacturing cost of the cooking utensil that has this heating device.

It is worth explaining that when the heating tubes are arranged on one side face of the tray body, the heating tubes can be divided into a plurality of sections of heating tubes from inside to outside, so that the heating area of the heating tubes can be increased, the heating time is shortened, and the heating efficiency is improved.

In practical application, the cooking appliance comprises a base and a cover body, and the heating device is arranged on at least one of the base and the cover body, so that the food materials are heated. In particular, the cooking appliance may be an electric baking pan or a barbecue tray.

In addition, according to the utility model discloses above-mentioned technical scheme provides a heating device still has following additional technical characteristics:

in one possible design, the heating device further comprises a tray body, and the heating pipe is arranged on one side surface of the tray body; the heating tube comprises a first section and a second section, and the first section is arranged close to the center of the tray body compared with the second section; the distance between two adjacent bent parts of the heating wire corresponding to the first section is larger than the distance between two adjacent bent parts of the heating wire corresponding to the second section.

In this design, it includes first section and second section to have injectd the heating tube, specifically speaking, and heating device includes the disk body, and the heating tube setting is on a side of disk body, and it can be understood that the disk body includes relative installation face and the culinary art face that sets up, and the heating tube setting is on the installation face of disk body, treats that the heating eat material is placed on the culinary art face, and the heating tube circular telegram, and the accessible heats the disk body and realizes the heating to eating the material.

Further, the first section is close to the center setting of disk body than the second section, that is to say, the first section is the inner circle heating tube, and the second section is the outer lane heating tube. It can be understood that, under the condition that the power density of the inner ring heating tube is the same as that of the outer ring heating tube, the length of the inner ring heating tube corresponding to the inner region in the unit area is greater than that of the outer ring heating tube corresponding to the inner region in the unit area, so that the heat generated by the disk body corresponding to the inner ring heating tube is greater than that of the disk body corresponding to the outer ring heating tube, the disk body is heated unevenly, and the food material is heated unevenly.

Interval between two adjacent flexion through the heating wire that corresponds first section is greater than the interval between two adjacent flexion of the heating wire that the second section corresponds, be about to produce the great of interval setting between two adjacent flexion of the heating wire of great thermal inner circle heating tube, interval setting between two adjacent flexion of the heating wire of less thermal outer lane heating tube will produce is less, thereby reduce the power density of inner circle heating tube, and then reduce the surface heating power of inner circle heating tube, realize the thermally equivalent of disk body different positions department, and then improve the homogeneity that the edible material is heated.

In one possible design, the diameter of the corresponding heating wire of the first section is smaller than the diameter of the corresponding heating wire of the second section.

In the design, the diameter of the heating wire corresponding to the first section is smaller than that of the heating wire corresponding to the second section, and it can be understood that the larger the diameter of the heating wire is, the larger the power density of the heating wire is, that is, the larger the resistance of the heating wire is, and thus the larger the surface heating power of the corresponding partial heating tube is.

Through being less than the diameter that the heater that the second section corresponds with the diameter of the heater that first section corresponds, further reduce the surface heating power that first section corresponds the heating tube, realize the thermally equivalent of disk body different positions department, and then improve the homogeneity that the edible material is heated.

In one possible design, the heater is a helical heater; the screw pitch of the spiral heating wire corresponding to the first section is larger than that of the spiral heating wire corresponding to the second section.

In this design, the heating wire is defined as a spiral heating wire, that is, a plurality of bent portions form a spiral structure. And the pitch of the spiral heating wire that first section corresponds is greater than the pitch of the spiral heating wire that the second section corresponds, the pitch setting of the spiral heating wire that is about to produce great thermal inner circle heating tube is great, the pitch setting of the spiral heating wire that will produce less thermal outer lane heating tube is less to reduce the power density of inner circle heating tube, and then reduce the surface heating power of inner circle heating tube, realize the thermally equivalent of disk body different positions department, and then improve the homogeneity that edible material was heated.

In one possible design, the outer diameter of the spiral heating wire corresponding to the first section is smaller than the outer diameter of the spiral heating wire corresponding to the second section.

In this design, the external diameter of the heliciform heating wire that first section corresponds is less than the external diameter of the heliciform heating wire that the second section corresponds, and it can be understood that the heliciform heating wire forms the heliciform structure for the heating wire, and in the width direction, the interval between the relative two outermost sides of heliciform structure is the external diameter of heliciform heating wire, also is the width of heliciform heating wire promptly.

It can be understood that the larger the outer diameter of the spiral heating wire, i.e. the wider the dimension of the spiral heating wire in the width direction, the greater the power density of the spiral heating wire, i.e. the greater the resistance of the spiral heating wire, and thus the greater the surface heating power of the corresponding partial heating tube.

The outer diameter of the spiral heating wire corresponding to the first section is smaller than that of the spiral heating wire corresponding to the second section, so that the surface heating power of the heating tube corresponding to the first section is further reduced, uniform heating of different positions of the tray body is achieved, and the uniformity of heating of food materials is improved.

In one possible design, the first and second segments are circular arc segments.

In this design, the first section and the second section are defined as circular arc sections, that is, the first section and the second section are further defined as ring-like structures in shape. It can be understood that, in practical application, the disk body is mostly circular or oval disk body, sets up first section and second section structure into circular-arc structure, can increase the heating region of heating tube to the disk body, shortens heat time, improves heating efficiency. And the first section and the second section are arranged to be arc section structures, so that the arrangement position of the heating tube is adapted to the structure of the tray body, and the heating uniformity of the tray body is improved.

In addition, the first section and the second section are limited to be arc sections, namely the first section is an inner ring heating tube, and the second section is an outer ring heating tube. It can be understood that, under the condition that the power density of the inner ring heating tube is the same as that of the outer ring heating tube, the length of the inner ring heating tube corresponding to the inner region in the unit area is greater than that of the outer ring heating tube corresponding to the inner region in the unit area, so that the heat generated by the disk body corresponding to the inner ring heating tube is greater than that of the disk body corresponding to the outer ring heating tube, the disk body is heated unevenly, and the food material is heated unevenly.

Interval between two adjacent flexion through the heating wire that corresponds first section is greater than the interval between two adjacent flexion of the heating wire that the second section corresponds, be about to produce the great of interval setting between two adjacent flexion of the heating wire of great thermal inner circle heating tube, interval setting between two adjacent flexion of the heating wire of less thermal outer lane heating tube will produce is less, thereby reduce the power density of inner circle heating tube, and then reduce the surface heating power of inner circle heating tube, realize the thermally equivalent of disk body different positions department, and then improve the homogeneity that the edible material is heated.

In one possible design, the heating tube further comprises a transition section, and the transition section is connected with the first section and the second section; the distance between two adjacent bending parts of the heating wire corresponding to the transition section is smaller than the distance between two adjacent bending parts of the heating wire corresponding to the first section and is larger than the distance between two adjacent bending parts of the heating wire corresponding to the second section.

In this design, it is defined that the heating tube further includes a transition section, specifically, a first end of the transition section is connected to the first section, and a second end of the transition section is connected to the second section, that is, the transition section is located between the first section and the second section, that is, the transition section is located between the inner ring heating tube and the outer ring heating tube.

The distance between two adjacent bent parts of the heating wire corresponding to the transition section is smaller than the distance between two adjacent bent parts of the heating wire corresponding to the first section, the distance between two adjacent bent parts of the heating wire corresponding to the transition section is larger than the distance between two adjacent bent parts of the heating wire corresponding to the second section, the surface heating power of the heating tube corresponding to different positions of the tray body is further refined, and the heating uniformity of the tray body at different positions is further improved.

Specifically, the interval between two adjacent flexion of the heater that the changeover portion corresponds is less than the interval between two adjacent flexion of the heater that first section corresponds, and the interval between two adjacent flexion of the heater that the changeover portion corresponds is greater than the interval between two adjacent flexion of the heater that the second section corresponds, that is to say, the surface heating power with the changeover portion is greater than the surface heating power of first section, and the surface heating power of changeover portion is less than the surface heating power of second section, the surface heating power of changeover portion is located between first section and the second section promptly, thereby can further improve the homogeneity that disk body different positions department was heated, and then improve the homogeneity that eats the material and be heated.

In one possible design, the diameter of the heating wire corresponding to the transition section is larger than that of the heating wire corresponding to the first section and smaller than that of the heating wire corresponding to the second section.

In the design, the diameter of the heating wire corresponding to the transition section is larger than that of the heating wire corresponding to the first section, and the diameter of the heating wire corresponding to the transition section is smaller than that of the heating wire corresponding to the second section. It can be understood that the larger the diameter of the heating wire is, the higher the power density of the heating wire is, that is, the higher the resistance of the heating wire is, and thus the surface heating power of the corresponding partial heating tube is higher.

The diameter of the heating wire that corresponds through with the changeover portion is greater than the diameter of the heating wire that first section corresponds, and the diameter of the heating wire that the changeover portion corresponds is less than the diameter of the heating wire that the second section corresponds, makes the surperficial heating power of changeover portion be located between first section and the second section to can further improve the homogeneity that disk body different positions department was heated, and then improve the homogeneity that eats the material and be heated.

In one possible design, the heater is a helical heater; the screw pitch of the spiral heating wire corresponding to the transition section is smaller than that of the spiral heating wire corresponding to the first section and larger than that of the spiral heating wire corresponding to the second section.

In this design, the heating wire is defined as a spiral heating wire, that is, a plurality of bent portions form a spiral structure. The screw pitch of the spiral heating wire corresponding to the transition section is smaller than that of the spiral heating wire corresponding to the first section, and the screw pitch of the spiral heating wire corresponding to the transition section is larger than that of the spiral heating wire corresponding to the second section. The surface heating power of the heating tubes corresponding to different positions of the tray body is further refined, and the heating uniformity of different positions of the tray body is further improved.

Specifically, the screw pitch of the heliciform heater of changeover portion is less than the screw pitch of the heliciform heater of first section, and the screw pitch of the heliciform heater of changeover portion is greater than the screw pitch of the heliciform heater of second section, that is to say, the surface heating power with the changeover portion is greater than the surface heating power of first section, and the surface heating power of changeover portion is less than the surface heating power of second section, the surface heating power of changeover portion is located between first section and the second section promptly, thereby can further improve the homogeneity that different positions of disk body department was heated, and then improve the homogeneity that eats material and be heated.

In one possible design, the outer diameter of the spiral heating wire corresponding to the transition section is larger than that of the spiral heating wire corresponding to the first section, and is smaller than that of the spiral heating wire corresponding to the second section.

In this design, the outer diameter of the helical heater of the transition section is greater than the outer diameter of the helical heater of the first section, and the outer diameter of the helical heater of the transition section is less than the outer diameter of the helical heater of the second section. It can be understood that the spiral heating wire forms a spiral structure for the heating wire, and in the width direction, the distance between two opposite outermost sides of the spiral structure is the outer diameter of the spiral heating wire, that is, the width of the spiral heating wire.

It can be understood that the larger the outer diameter of the spiral heating wire, i.e. the wider the dimension of the spiral heating wire in the width direction, the greater the power density of the spiral heating wire, i.e. the greater the resistance of the spiral heating wire, and thus the greater the surface heating power of the corresponding partial heating tube.

The outer diameter of the spiral heating wire corresponding to the transition section is larger than that of the spiral heating wire corresponding to the first section, the outer diameter of the spiral heating wire corresponding to the transition section is smaller than that of the spiral heating wire corresponding to the second section, and the surface heating power of the transition section is located between the first section and the second section, so that the heating uniformity of different positions of the tray body can be further improved, and the heating uniformity of the food material is improved.

In one possible design, the heating tube further includes a metal housing and metal powder, wherein the heating wire is located in the metal housing, and the metal powder is located between the metal housing and the heating wire.

In this design, it still includes metal casing and metal powder to have injectd the heating tube, specifically speaking, and the heater setting is in metal casing, and still packs the metal powder between metal casing and the heater. Specifically, when the heating tube circular telegram, the heater produced heat, and the heat passes through metal powder and transmits for metal casing, and metal casing transmits the heat to the disk body again, realizes the heating to the disk body.

Through setting up metal casing to fill the metal powder between heater and metal casing, thereby can realize thermal transmission, and then realize the heating of heating tube circular telegram to the disk body.

In practical application, the metal powder is magnesium powder, and the metal powder is set as the magnesium powder, so that the heat transfer efficiency and effect can be improved.

In one possible design, the metal powder is magnesium powder.

In the design, the metal powder is limited to be magnesium powder, namely the magnesium powder is filled between the heating wire and the metal shell, so that the heat transfer efficiency and effect can be improved.

In one possible design, the heating device further comprises a mounting groove, the mounting groove is arranged on one side face of the tray body, and the heating tube is mounted in the mounting groove.

In this design, it is defined that the heating device further comprises a mounting groove, specifically, the mounting groove is provided on one side of the tray body, and the mounting groove is provided on the same side of the tray body as the heating pipe. The heating tube is installed in the mounting groove, and it can be understood that the shape of mounting groove is unanimous with the mode of arranging of heating tube to when installing the heating tube in the mounting groove, can realize the inside and outside mode of arranging of heating tube.

It should be noted that the axial depth of the mounting groove is greater than the width of the heating tube, so that the fixing effect of the heating tube can be improved.

In practical application, the mounting groove is enclosed by the protruding structure of adjacent both sides, and protruding structure and disk body structure as an organic whole, is greater than the width of heating tube with the axial depth of mounting groove, is about to the heating tube parcel in the mounting groove, can reduce the calorific loss of heating tube, and then improves the heating efficiency of heating tube.

It is worth explaining that, heating device still includes the mounting, and when installing the heating tube in the mounting groove, the accessible mounting is further fixed the heating tube, prevents that the heating tube from droing from the mounting groove, improves the installation stability of heating tube.

According to the utility model discloses a second aspect provides a cooking utensil, include the heating device that any technical scheme provided as above-mentioned, therefore possess this heating device's whole beneficial technological effect, no longer describe herein.

In practical applications, the cooking appliance may be an electric baking pan or a barbecue tray.

In addition, according to the utility model discloses above-mentioned technical scheme provides cooking utensil still has following additional technical characterstic:

in one possible design, the cooking appliance is an electric baking pan or a barbecue tray.

In this design, it is electric cake clan or barbecue dish to have injectd cooking utensil, that is to say, electric cake clan or barbecue dish include heating device, through with the interval difference between two adjacent flexion of the heater that different sections heating tube correspond, be about to produce the interval setting between two adjacent flexion of the heater of the inner circle heating tube of great heat great, will produce less that interval setting between two adjacent flexion of the heater of less heat's outer lane heating tube is less, thereby reduce the power density of inner circle heating tube, and then reduce the surface heating power of inner circle heating tube, realize the thermally equivalent of disk body different positions department, and then improve the homogeneity that edible material is heated.

In addition, utilize a heating tube to arrange on the disk body, can be when realizing disk body different position department thermally equivalent, compare in the correlation technique utilize two heating tubes to carry out inside and outside arranging, can reduce heating device's manufacturing cost, and then can reduce the manufacturing cost of the cooking utensil that has this heating device.

Additional aspects and advantages in accordance with the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 shows one of the schematic structural views of a heating device according to an embodiment of the invention;

fig. 2 shows a second schematic structural view of a heating device according to an embodiment of the invention;

fig. 3 shows one of the schematic structural views of a heat generating tube according to an embodiment of the present invention;

fig. 4 shows a second schematic structural diagram of a heat generating tube according to an embodiment of the present invention;

fig. 5 shows a third schematic structural diagram of a heat generating tube according to an embodiment of the present invention;

fig. 6 shows a fourth schematic structural diagram of a heat generating tube according to an embodiment of the present invention;

fig. 7 shows one of the schematic structural views of a cooking appliance according to an embodiment of the present invention;

fig. 8 shows a second schematic structural diagram of a cooking appliance according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 8 is:

100 heating devices, 110 heating tubes, 111 first sections, 112 second sections, 113 transition sections, 114 metal shells, 115 metal powder, 120 heating wires, 130 trays, 140 mounting grooves and 200 cooking utensils.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

A heating apparatus 100 and a cooking appliance 200 provided according to some embodiments of the present invention are described below with reference to fig. 1 to 8.

The first embodiment is as follows:

as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, an embodiment of the first aspect of the present invention provides a heating device 100, the heating device 100 is used for a cooking utensil 200, the heating device 100 includes a heating tube 110 and a heating wire 120, the heating wire 120 is disposed in the heating tube 110, the heating wire 120 includes a plurality of bending portions, wherein the heating tube 110 is divided into a plurality of sections, and the distances between two adjacent bending portions of the heating wire 120 corresponding to the heating tubes 110 of different sections are different.

The embodiment of the utility model provides a heating device 100 includes heating tube 110 and heater 120, particularly speaking, heater 120 is located heating tube 110, and it can be understood that, when being the circular telegram of heater 120, heater 120 can produce heat to realize heating tube 110's generating heat. When the heating tube 110 is installed on a side surface of the tray body 130 of the heating device 100, heat generated by the heating tube 110 can heat the tray body 130, when the food material to be heated is placed on a side surface of the tray body 130 away from the heating tube 110, the tray body 130 can heat the food material after being heated, and cooking of the food material is achieved.

Further, the heat generating tube 110 is divided into a plurality of sections, and specifically, the plurality of sections of heat generating tube 110 are connected. It can be understood that each segment of the heat generating tubes 110 is distributed at a different position on the tray body 130. The interval between two adjacent flexion portions of the heating wire 120 that the heating tube 110 of different sections corresponds is different to make the surface heating power that the heating tube 110 that different positions department corresponds produced different, and then can set up the interval between two adjacent flexion portions of heating wire 120 according to the position that sets up of different sections heating tube 110, realize the thermally equivalent of disk body 130 different positions department.

Specifically, the different sections of the heating tubes 110 are arranged on a side surface of the tray body 130, and it can be understood that, under the same power density, the positions of the different sections of the heating tubes 110 are different, so that the lengths of the corresponding heating tubes 110 are different in a unit area, and therefore the heat generated by the different sections of the heating tubes 110 is different, and when the heating tubes 110 are powered on, the heating tubes are heated differently at different positions on the tray body 130. For example, the heating tube 110 includes an inner ring heating tube and an outer ring heating tube, that is, one heating tube 110 is wound by two turns inside and outside on one side surface of the tray body 130, under the condition that the power density of the inner ring heating tube is the same as that of the outer ring heating tube, the length of the inner ring heating tube corresponding to the inner region in the unit area is greater than the length of the outer ring heating tube corresponding to the inner region in the unit area in the outer ring, so that the heat generated by the tray body 130 corresponding to the inner ring heating tube is greater than the area of the tray body 130 corresponding to the outer ring heating tube, which causes uneven heating of the tray body 130, and further causes uneven heating of the food material.

The interval between two adjacent bending parts of the heating wire 120 corresponding to different sections of the heating tube 110 is different, the interval between two adjacent bending parts of the heating wire 120 of the inner ring heating tube which is about to generate large heat is larger, the interval between two adjacent bending parts of the heating wire 120 of the outer ring heating tube which is about to generate small heat is smaller, so that the power density of the inner ring heating tube is reduced, the surface heating power of the inner ring heating tube is reduced, uniform heating at different positions of the tray body 130 is realized, and the uniformity of heating food materials is improved.

In addition, one heating tube 110 is arranged on the tray body 130, so that the tray body 130 can be uniformly heated at different positions, and compared with the related art in which two heating tubes 110 are arranged inside and outside, the production cost of the heating device 100 can be reduced, and further the production cost of the cooking appliance 200 with the heating device 100 can be reduced.

It should be noted that when the heat-generating tubes 110 are arranged on one side of the tray 130, the heat-generating tubes 110 can be divided into multiple sections from inside to outside, so as to increase the heating area of the heat-generating tubes 110, shorten the heating time, and increase the heating efficiency.

In practical applications, the cooking appliance 200 includes a base and a cover, and the heating device 100 is disposed on at least one of the base and the cover, so as to heat the food material. Specifically, the cooking appliance 200 may be an electric baking pan or a roasting pan.

Example two:

as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, on the basis of the above embodiment, further, the heating device 100 further includes a tray 130, and the heating tube 110 is disposed on one side surface of the tray 130; the heat generating tube 110 includes a first section 111 and a second section 112, the first section 111 being disposed closer to the center of the tray body 130 than the second section 112; wherein, the distance between two adjacent bending parts of the heating wire 120 corresponding to the first section 111 is greater than the distance between two adjacent bending parts of the heating wire 120 corresponding to the second section 112.

In this embodiment, the heating tube 110 is defined to include the first section 111 and the second section 112, and specifically, the heating device 100 includes the tray 130, and the heating tube 110 is disposed on one side surface of the tray 130, it can be understood that the tray 130 includes a mounting surface and a cooking surface which are oppositely disposed, the heating tube 110 is disposed on the mounting surface of the tray 130, the food material to be heated is placed on the cooking surface, the heating tube 110 is powered on, and heating of the food material can be achieved by heating the tray 130.

Further, the first section 111 is disposed closer to the center of the tray body 130 than the second section 112, that is, the first section 111 is an inner ring heating tube, and the second section 112 is an outer ring heating tube. It can be understood that, under the condition that the power density of the inner ring heating tube is the same as that of the outer ring heating tube, the length of the inner ring heating tube corresponding to the inner region in the unit area is greater than that of the outer ring heating tube corresponding to the inner region in the unit area, so that the heat generated by the region of the tray body 130 corresponding to the inner ring heating tube is greater than that of the tray body 130 corresponding to the outer ring heating tube, the tray body 130 is heated unevenly, and the food material is heated unevenly.

Interval between two adjacent bending parts of the heating wire 120 corresponding to the first section 111 is greater than interval between two adjacent bending parts of the heating wire 120 corresponding to the second section 112, interval between two adjacent bending parts of the heating wire 120 of the inner ring heating tube which is about to generate large heat is set larger, interval between two adjacent bending parts of the heating wire 120 of the outer ring heating tube which is about to generate small heat is set smaller, thereby reducing power density of the inner ring heating tube, and further reducing surface heating power of the inner ring heating tube, uniform heating at different positions of the tray body 130 is realized, and further uniformity of heating food materials is improved.

In a specific embodiment, further, the diameter of the heating wire 120 corresponding to the first segment 111 is smaller than the diameter of the heating wire 120 corresponding to the second segment 112.

In this embodiment, the diameter of the heating wire 120 corresponding to the first segment 111 is smaller than the diameter of the heating wire 120 corresponding to the second segment 112, and it can be understood that the larger the diameter of the heating wire 120, the larger the power density of the heating wire 120, that is, the larger the resistance of the heating wire 120, and thus the larger the surface heating power of the corresponding partial heating tube 110.

The diameter of the heating wire 120 corresponding to the first section 111 is smaller than that of the heating wire 120 corresponding to the second section 112, so that the surface heating power of the heating tube 110 corresponding to the first section 111 is further reduced, uniform heating at different positions of the tray body 130 is realized, and the uniformity of heating food materials is improved.

In another specific embodiment, further, the heating wire 120 is a spiral heating wire; the pitch of the spiral heating wire corresponding to the first section 111 is greater than that of the spiral heating wire corresponding to the second section 112.

In this embodiment, the heating wire 120 is defined as a spiral heating wire, that is, a plurality of bent portions form a spiral structure. And the pitch of the spiral heating wire corresponding to the first section 111 is greater than the pitch of the spiral heating wire corresponding to the second section 112, the pitch of the spiral heating wire of the inner ring heating tube which is about to generate large heat is set to be larger, and the pitch of the spiral heating wire of the outer ring heating tube which is about to generate small heat is set to be smaller, so that the power density of the inner ring heating tube is reduced, the surface heating power of the inner ring heating tube is further reduced, uniform heating at different positions of the tray body 130 is realized, and the uniformity of heating food materials is improved.

In yet another specific embodiment, further, the outer diameter of the spiral-shaped heating wire 120 corresponding to the first segment 111 is smaller than the outer diameter of the spiral-shaped heating wire 120 corresponding to the second segment 112.

In this embodiment, the outer diameter of the spiral heating wire 120 corresponding to the first segment 111 is smaller than the outer diameter of the spiral heating wire 120 corresponding to the second segment 112, it can be understood that the spiral heating wire 120 forms a spiral structure for the heating wire, and in the width direction, the distance between two outermost sides of the spiral structure is the outer diameter of the spiral heating wire 120, that is, the width of the spiral heating wire 120.

It can be understood that the larger the outer diameter of the spiral heating wire 120, i.e. the wider the dimension of the spiral heating wire 120 in the width direction, the greater the power density of the spiral heating wire 120, i.e. the greater the resistance of the spiral heating wire 120, and thus the greater the surface heating power of the corresponding partial heating tube 110.

The outer diameter of the spiral heating wire 120 corresponding to the first section 111 is smaller than the outer diameter of the spiral heating wire 120 corresponding to the second section 112, so that the surface heating power of the heating tube 110 corresponding to the first section 111 is further reduced, uniform heating at different positions of the tray body 130 is realized, and the uniformity of heating food materials is improved.

As shown in fig. 1, 2, 3, 4 and 5, in addition to the above embodiments, the first segment 111 and the second segment 112 are further arc segments.

In this embodiment, the first section 111 and the second section 112 are defined as circular arc sections, i.e., the first section 111 and the second section 112 are further defined as ring-like structures in shape. It can be understood that, in practical application, the tray body 130 is mostly a circular or elliptical tray body 130, and the first section 111 and the second section 112 are set to be arc-shaped structures, so that the heating area of the heating tube 110 to the tray body 130 can be increased, the heating time is shortened, and the heating efficiency is improved. And the first section 111 and the second section 112 are designed to be circular arc section structures, so that the arrangement position of the heating tube 110 can be adapted to the structure of the tray body 130, and the uniformity of heating of the tray body 130 can be further improved.

In addition, the first section 111 and the second section 112 are defined as circular arc sections, that is, the first section 111 is an inner ring heating tube, and the second section 112 is an outer ring heating tube. It can be understood that, under the condition that the power density of the inner ring heating tube is the same as that of the outer ring heating tube, the length of the inner ring heating tube corresponding to the inner region in the unit area is greater than that of the outer ring heating tube corresponding to the inner region in the unit area, so that the heat generated by the region of the tray body 130 corresponding to the inner ring heating tube is greater than that of the tray body 130 corresponding to the outer ring heating tube, the tray body 130 is heated unevenly, and the food material is heated unevenly.

Interval between two adjacent bending parts of the heating wire 120 corresponding to the first section 111 is greater than interval between two adjacent bending parts of the heating wire 120 corresponding to the second section 112, interval between two adjacent bending parts of the heating wire 120 of the inner ring heating tube which is about to generate large heat is set larger, interval between two adjacent bending parts of the heating wire 120 of the outer ring heating tube which is about to generate small heat is set smaller, thereby reducing power density of the inner ring heating tube, and further reducing surface heating power of the inner ring heating tube, uniform heating at different positions of the tray body 130 is realized, and further uniformity of heating food materials is improved.

Example three:

as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, on the basis of any of the above embodiments, further, the heat generating pipe 110 further includes a transition section 113, and the transition section 113 is connected to the first section 111 and the second section 112; the distance between two adjacent bent portions of the heating wire 120 corresponding to the transition section 113 is smaller than the distance between two adjacent bent portions of the heating wire 120 corresponding to the first section 111, and is larger than the distance between two adjacent bent portions of the heating wire 120 corresponding to the second section 112.

In this embodiment, the heat generating tube 110 further includes a transition section 113, specifically, a first end of the transition section 113 is connected to the first section 111, and a second end of the transition section 113 is connected to the second section 112, that is, the transition section 113 is located between the first section 111 and the second section 112, that is, the transition section 113 is located between the inner ring heat generating tube and the outer ring heat generating tube.

The distance between two adjacent bent parts of the heating wire 120 corresponding to the transition section 113 is smaller than the distance between two adjacent bent parts of the heating wire 120 corresponding to the first section 111, and the distance between two adjacent bent parts of the heating wire 120 corresponding to the transition section 113 is larger than the distance between two adjacent bent parts of the heating wire 120 corresponding to the second section 112, so that the surface heating power of the heating tubes 110 corresponding to different positions of the tray body 130 is further refined, and the uniformity of heating at different positions of the tray body 130 is further improved.

Specifically, the distance between two adjacent bending portions of the heating wire 120 corresponding to the transition section 113 is smaller than the distance between two adjacent bending portions of the heating wire 120 corresponding to the first section 111, and the distance between two adjacent bending portions of the heating wire 120 corresponding to the transition section 113 is larger than the distance between two adjacent bending portions of the heating wire 120 corresponding to the second section 112, that is, the surface heating power of the transition section 113 is larger than the surface heating power of the first section 111, and the surface heating power of the transition section 113 is smaller than the surface heating power of the second section 112, that is, the surface heating power of the transition section 113 is located between the first section 111 and the second section 112, so that the uniformity of heating at different positions of the tray body 130 can be further improved, and the uniformity of heating food materials is further improved.

In a specific embodiment, further, the diameter of the heating wire 120 corresponding to the transition section 113 is larger than the diameter of the heating wire 120 corresponding to the first section 111 and smaller than the diameter of the heating wire 120 corresponding to the second section 112.

In this embodiment, the diameter of the heating wire 120 corresponding to the transition section 113 is larger than the diameter of the heating wire 120 corresponding to the first section 111, and the diameter of the heating wire 120 corresponding to the transition section 113 is smaller than the diameter of the heating wire 120 corresponding to the second section 112. It can be understood that, the larger the diameter of the heating wire 120, the greater the power density of the heating wire 120, that is, the greater the resistance of the heating wire 120, and thus the greater the surface heating power of the corresponding portion of the heating tube 110.

Through being greater than the diameter of the heater 120 that first section 111 corresponds with the diameter of the heater 120 that the changeover portion 113 corresponds, and the diameter of the heater 120 that the changeover portion 113 corresponds is less than the diameter of the heater 120 that the second section 112 corresponds, makes the surperficial heating power of changeover portion 113 be located between first section 111 and the second section 112 to can further improve the homogeneity that disk body 130 different positions department was heated, and then improve the homogeneity that edible material was heated.

In another specific embodiment, further, the heating wire 120 is a spiral heating wire; the screw pitch of the spiral heating wire corresponding to the transition section 113 is smaller than that of the spiral heating wire corresponding to the first section 111 and larger than that of the spiral heating wire corresponding to the second section 112.

In this embodiment, the heating wire 120 is defined as a spiral heating wire, that is, a plurality of bent portions form a spiral structure. The screw pitch of the spiral heating wire corresponding to the transition section 113 is smaller than that of the spiral heating wire corresponding to the first section 111, and the screw pitch of the spiral heating wire corresponding to the transition section 113 is larger than that of the spiral heating wire corresponding to the second section 112. The surface heating power of the heating tubes 110 corresponding to different positions of the tray body 130 is further refined, and the uniformity of heating at different positions of the tray body 130 is further improved.

Specifically, the screw pitch of the heliciform heater of changeover portion 113 is less than the screw pitch of the heliciform heater of first section 111, and the screw pitch of the heliciform heater of changeover portion 113 is greater than the screw pitch of the heliciform heater of second section 112, that is to say, the surface heating power with changeover portion 113 is greater than the surface heating power of first section 111, and the surface heating power of changeover portion 113 is less than the surface heating power of second section 112, the surface heating power of changeover portion 113 is located between first section 111 and second section 112 promptly, thereby can further improve the homogeneity that disk body 130 different positions department was heated, and then improve the homogeneity that edible material was heated.

In yet another specific embodiment, further, the outer diameter of the spiral-shaped heating wire 120 corresponding to the transition section 113 is larger than the outer diameter of the spiral-shaped heating wire 120 corresponding to the first section 111 and smaller than the outer diameter of the spiral-shaped heating wire 120 corresponding to the second section 112.

In this embodiment, the outer diameter of the helical heater 120 of the transition section 113 is larger than the outer diameter of the helical heater 120 of the first section 111, and the outer diameter of the helical heater 120 of the transition section 113 is smaller than the outer diameter of the helical heater 120 of the second section 112. It can be understood that the spiral heating wire 120 is a heating wire forming a spiral structure, and in the width direction, a distance between two outermost sides of the spiral structure is an outer diameter of the spiral heating wire 120, that is, a width of the spiral heating wire 120.

It can be understood that the larger the outer diameter of the spiral heating wire 120, i.e. the wider the dimension of the spiral heating wire 120 in the width direction, the greater the power density of the spiral heating wire 120, i.e. the greater the resistance of the spiral heating wire 120, and thus the greater the surface heating power of the corresponding partial heating tube 110.

The outer diameter of the spiral heating wire 120 corresponding to the transition section 113 is larger than the outer diameter of the spiral heating wire 120 corresponding to the first section 111, and the outer diameter of the spiral heating wire 120 corresponding to the transition section 113 is smaller than the outer diameter of the spiral heating wire 120 corresponding to the second section 112, so that the surface heating power of the transition section 113 is positioned between the first section 111 and the second section 112, and therefore the uniformity of heating at different positions of the tray body 130 can be further improved, and the uniformity of heating food materials is improved.

Example four:

as shown in fig. 6, based on any of the above embodiments, the heat generating tube 110 further includes a metal casing 114 and a metal powder 115, wherein the heat generating wire 120 is located in the metal casing 114, and the metal powder 115 is located between the metal casing 114 and the heat generating wire 120.

In this embodiment, the heat generating tube 110 further includes a metal housing 114 and a metal powder 115, specifically, the heat generating wire 120 is disposed in the metal housing 114, and the metal powder 115 is further filled between the metal housing 114 and the heat generating wire 120. Specifically, when the heat generating tube 110 is powered on, the heat generating wire 120 generates heat, the heat is transferred to the metal shell 114 through the metal powder 115, and the metal shell 114 transfers the heat to the tray body 130, so as to heat the tray body 130.

By arranging the metal shell 114 and filling the metal powder 115 between the heating wire 120 and the metal shell 114, heat transfer can be realized, and the heating of the heating tube 110 to the tray body 130 can be realized.

In practical applications, the metal powder 115 is magnesium powder, and the efficiency and effect of heat transfer can be improved by setting the metal powder 115 as magnesium powder.

In a specific embodiment, further, the metal powder 115 is magnesium powder.

In this embodiment, the metal powder 115 is defined as magnesium powder, i.e., magnesium powder is filled between the heating wire 120 and the metal housing 114, which can improve the efficiency and effect of heat transfer.

Example five:

as shown in fig. 1 and 2, on the basis of any of the above embodiments, further, the heating device 100 further includes a mounting groove 140, the mounting groove 140 is disposed on one side surface of the tray body 130, and the heating tube 110 is mounted in the mounting groove 140.

In this embodiment, it is defined that the heating apparatus 100 further includes a mounting groove 140, and specifically, the mounting groove 140 is disposed on one side surface of the tray body 130, and the mounting groove 140 is disposed on the same side of the tray body 130 as the heating pipe. The heating tube 110 is installed in the installation groove 140, and it can be understood that the shape of the installation groove 140 is identical to the arrangement of the heating tube 110, so that the arrangement of the heating tube 110 inside and outside can be realized when the heating tube 110 is installed in the installation groove 140.

It should be noted that the axial depth of the mounting groove 140 is greater than the width of the heating tube 110, so that the fixing effect of the heating tube 110 can be improved.

In practical application, the mounting groove 140 is surrounded by the protruding structures on two adjacent sides, and the protruding structures and the tray body 130 are of an integral structure, so that the axial depth of the mounting groove 140 is greater than the width of the heating tube 110, that is, the heating tube 110 is wrapped in the mounting groove 140, the heat loss of the heating tube 110 can be reduced, and the heating efficiency of the heating tube 110 is further improved.

It should be noted that, the heating apparatus 100 further includes a fixing member, when the heating tube 110 is installed in the installation groove 140, the heating tube 110 can be further fixed by the fixing member, so as to prevent the heating tube 110 from falling off from the installation groove 140, and improve the installation stability of the heating tube 110.

Example six:

as shown in fig. 7 and 8, according to a second aspect of the present invention, there is provided a cooking appliance 200, including the heating device 100 according to any of the above-mentioned technical solutions, so as to have all the beneficial technical effects of the heating device 100, which will not be described herein again.

In practical applications, the cooking device 200 may be an electric baking pan or a barbecue tray.

In one embodiment, the cooking utensil 200 is an electric baking pan or a barbecue plate.

In this embodiment, the cooking apparatus 200 is limited to be an electric baking pan or a barbecue tray, that is, the electric baking pan or the barbecue tray includes the heating device 100, and the distance between two adjacent bending portions of the heating wire 120 corresponding to different sections of the heating tube 110 is different, that is, the distance between two adjacent bending portions of the heating wire 120 of the inner ring heating tube generating larger heat is set to be larger, and the distance between two adjacent bending portions of the heating wire 120 of the outer ring heating tube generating smaller heat is set to be smaller, so as to reduce the power density of the inner ring heating tube, further reduce the surface heating power of the inner ring heating tube, achieve uniform heating at different positions of the tray body 130, and further improve the uniformity of heating food materials.

In addition, one heating tube 110 is arranged on the tray body 130, so that the tray body 130 can be uniformly heated at different positions, and compared with the related art in which two heating tubes 110 are arranged inside and outside, the production cost of the heating device 100 can be reduced, and further the production cost of the cooking appliance 200 with the heating device 100 can be reduced.

In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to 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 (15)

1. A heating device for a cooking appliance, the heating device comprising:

a heat generating tube;

the heating wire is arranged in the heating tube and comprises a plurality of bending parts;

the heating tubes are divided into a plurality of sections, and the distances between two adjacent bending parts of the heating wires corresponding to the heating tubes of different sections are different;

the heating device further includes:

the heating tube is arranged on one side surface of the tray body.

2. The heating device according to claim 1,

the heat generating tube includes:

a first section and a second section, the first section disposed closer to a center of the tray body than the second section;

the distance between two adjacent bent parts of the heating wire corresponding to the first section is larger than the distance between two adjacent bent parts of the heating wire corresponding to the second section.

3. The heating device according to claim 2,

the diameter of the heating wire corresponding to the first section is smaller than that of the heating wire corresponding to the second section.

4. The heating device according to claim 2,

the heating wire is a spiral heating wire;

the screw pitch of the spiral heating wire corresponding to the first section is larger than that of the spiral heating wire corresponding to the second section.

5. The heating device according to claim 4,

the outer diameter of the spiral heating wire corresponding to the first section is smaller than that of the spiral heating wire corresponding to the second section.

6. The heating device according to claim 2,

the first section and the second section are arc sections.

7. The heating device according to claim 2, wherein the heat generating tube further comprises:

a transition section connected to the first section and the second section;

the distance between two adjacent bent parts of the heating wire corresponding to the transition section is smaller than the distance between two adjacent bent parts of the heating wire corresponding to the first section and is larger than the distance between two adjacent bent parts of the heating wire corresponding to the second section.

8. The heating device according to claim 7,

the diameter of the heating wire corresponding to the transition section is larger than that of the heating wire corresponding to the first section and smaller than that of the heating wire corresponding to the second section.

9. The heating device according to claim 7,

the heating wire is a spiral heating wire;

the screw pitch of the spiral heating wire corresponding to the transition section is smaller than that of the spiral heating wire corresponding to the first section and is larger than that of the spiral heating wire corresponding to the second section.

10. The heating device according to claim 9,

the outer diameter of the spiral heating wire corresponding to the transition section is larger than that of the spiral heating wire corresponding to the first section and smaller than that of the spiral heating wire corresponding to the second section.

11. The heating device according to any one of claims 1 to 10, wherein the heat generating pipe further comprises:

the heating wire is positioned in the metal shell;

and the metal powder is arranged between the metal shell and the heating wire.

12. The heating device according to claim 11,

the metal powder is magnesium powder.

13. The heating device according to any one of claims 2 to 10, further comprising:

the mounting groove is arranged on one side face of the tray body, and the heating tube is mounted in the mounting groove.

14. A cooking appliance comprising a heating device as claimed in any one of claims 1 to 13.

15. The cooking appliance of claim 14, wherein the cooking appliance is an electric baking pan or a barbecue tray.

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