CN216702339U

CN216702339U - Baking oven

Info

Publication number: CN216702339U
Application number: CN202122704392.8U
Authority: CN
Inventors: 葛睿彤; 王定远; 赵鹏达; 裴玉哲; 董世玉; 贺立军
Original assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-06-10
Anticipated expiration: 2031-11-05

Abstract

The utility model discloses an oven, which comprises an oven body, a door body used for opening and closing the oven body, and a heating assembly arranged in the oven body, wherein the heating assembly is configured into a sheet shape extending along the plane direction of the inner top wall of the oven body, and comprises two heating side parts and a heating middle part positioned between the two heating side parts, and the distance between the heating middle part and the bottom wall of the oven body is larger than the distance between the two heating side parts and the bottom wall. According to the oven provided by the utility model, each position in the oven body can receive vertical heat radiation from the heating assembly, and meanwhile, when a user puts food materials into the middle position of the oven, the distances between the heating middle part and the heating side part of the sheet-shaped heating assembly and the food materials are basically equal, so that the uniform heating degree of the food materials is improved in multiple dimensions such as the width direction, the depth direction and the height direction of the oven.

Description

Baking oven

Technical Field

The utility model relates to the field of electric heating, in particular to an oven.

Background

Among the prior art, the inside device that is used for the heating of oven is generally configured as the heating pipe of transversal arrangement in the oven, the inside heater strip that receives the electricity and generate heat that is provided with of heating pipe, so realize heating pipe and generate heat after the access power, with the inside technological effect of eating the material of baking oven box, nevertheless because the thermal giveaway of heating pipe has the limitation on heater strip width direction, the heat of heating pipe both sides can only rely on the radiation, so can lead to the heating effect of eating the material under the heating pipe far than the heating effect of both sides, the thermal giveaway of heating pipe has the homogeneity again on heater strip length direction simultaneously, when will eat the material and place in the heating pipe geometric center under, the heating pipe both sides are farther to the distance of eating the material than the middle part of the distance of material, so further aggravated the inhomogeneous problem of heating effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an oven, which aims to solve the technical problem that the heat radiation of the oven to food materials is not uniform in the width direction and the depth direction in the prior art.

In order to achieve one of the above objectives of the present invention, an embodiment of the present invention provides an oven, including a box body, and a door body for opening and closing the box body, the oven further includes a heating assembly disposed in the box body, the heating assembly is configured as a sheet extending along a plane direction of an inner top wall of the box body, and includes two heating side portions and a heating middle portion located between the two heating side portions, and a distance between the heating middle portion and a bottom wall of the box body is greater than a distance between the two heating side portions and the bottom wall.

As a further improvement of the embodiment of the present invention, the heating assembly is disposed close to the top wall in the box body, and includes an insulating module and a conductive heating module, the conductive heating module is formed on one side of the insulating module close to the top wall, and an extension area of the insulating module is configured to be greater than or equal to an extension area of the conductive heating module.

As a further improvement of the embodiment of the present invention, the heating assembly includes a first heating side portion and a second heating side portion, the heating assembly further includes a first electrode and a first wire disposed on the first heating side portion, and a second electrode and a second wire disposed on the second heating side portion, the first electrode is configured to have one side connected to the conductive heating module and the other side connected to the first wire, the second electrode is configured to have one side connected to the conductive heating module and the other side connected to the second wire.

As a further improvement of the embodiment of the present invention, the first electrode, the first lead, the second electrode, and the second lead are respectively disposed on a side of the conductive heating module close to a rear wall of the oven, and the first lead and the second lead are connected to a power supply through the rear wall.

As a further improvement of the embodiment of the present invention, the first electrode and the second electrode are fixed on one side of the conductive heating module close to the top wall and are respectively configured in a sheet shape, the first electrode extends along the direction from the first heating side portion to the heating middle portion, and the second electrode extends along the direction from the second heating side portion to the heating middle portion.

As a further improvement of the embodiment of the present invention, an extension area of the insulating module is configured to be larger than an extension area of the conductive heating module, the insulating module and the conductive heating module respectively include an insulating fixing edge and a conductive fixing edge near one side of the rear wall, a distance between the insulating fixing edge and the conductive fixing edge is configured to be larger than an extension width of the first electrode and the second electrode in a direction perpendicular to the rear wall, and the first electrode and the second electrode are disposed in close contact with the conductive fixing edge.

As a further improvement of the embodiment of the present invention, the heating assembly further includes a heat insulation module disposed on a side of the conductive heating module close to the top wall, and the heat insulation module is configured to be a heat insulation aerogel material.

As a further improvement of the embodiment of the present invention, the heating assembly further includes a heat conduction module disposed on a side of the conductive heating module away from the top wall, and the heat conduction module is made of metal and disposed on a side of the insulation module away from the top wall.

As a further improvement of the embodiment of the present invention, the heating assembly further includes an encapsulation module disposed on a side of the conductive heating module away from the insulation module, and an extension area of the encapsulation module is configured to be greater than or equal to an extension area of the insulation module; an insulating glue layer is further coated between the packaging module and the insulating module, and the insulating glue layer is adhered to the packaging module and the insulating module, so that the conductive heating module is clamped between the packaging module and the insulating module.

As a further improvement of an embodiment of the present invention, the conductive heating module is configured to be made of graphene, and the insulating module is configured to have high infrared transmittance.

Compared with the prior art, the oven provided by the utility model has the advantages that the sheet-shaped heating assembly extending along the plane direction of the top wall in the oven body is configured, so that each position in the oven body can receive vertical heat radiation from the heating assembly, meanwhile, the sheet-shaped heating assembly is configured into a structure with a high middle part and two low sides, when a user puts food materials into the middle position of the oven, the distances between the heating middle part and the heating side part of the sheet-shaped heating assembly and the food materials are basically equal, and thus the uniform degree of heating of the food materials is improved in multiple dimensions such as the width direction, the depth direction and the height direction of the oven.

Drawings

FIG. 1 is a schematic structural diagram of a temperature control system of an oven according to an embodiment of the present invention;

FIG. 2 is a schematic external perspective view of an oven according to an embodiment of the present invention;

FIG. 3 is a schematic perspective view of an oven with a door omitted according to another embodiment of the present invention;

FIG. 4 is a schematic diagram of an exploded view of a heating assembly in accordance with an embodiment of the present invention;

fig. 5 is a partial structural schematic view of a heating assembly according to an embodiment of the present invention.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.

It is to be noted that the term "comprises," "comprising," or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The utility model provides an oven temperature control system which is arranged in an oven and used for detecting the temperature environment in the oven and performing cyclic feedback regulation correspondingly, specifically, as shown in fig. 1, the temperature control system comprises a main control unit 13 and a heating assembly 2 connected with the main control unit 13, wherein the main control unit 13 is used for detecting the temperature in the oven, executing temperature control and outputting related signals to the heating assembly 2.

The main control unit 13 specifically includes a temperature detection device 131, a temperature adjustment device 132, and a circulation control device 133, wherein the temperature detection device 131 and the temperature adjustment device 132 are electrically connected to the circulation control device 133, respectively. Specifically, the temperature detecting means 131 includes one or more of a thermal resistor, a platinum resistor and a thermistor for detecting the temperature inside the oven and outputting the temperature data to the circulation control means 133, and specifically, in the present embodiment, the temperature detecting means 131 is configured to continuously detect and generate the temperature data for a preset time interval and output the generated temperature data to the circulation control means 133 following the same or different operation timing.

The thermostat 132 is used to receive/acquire and output the target temperature value, the deviation threshold value and the maximum temperature, wherein for the purposes of description, the present invention defines "receiving" as passively receiving data input from the user side, and "acquiring" as actively calling up data stored in a storage device cooperating with the thermostat 132, thus distinguishing them in terms of expression, but achieving the effect that the thermostat 132 obtains the aforementioned values.

Furthermore, the target temperature value is the optimum heating temperature of the food materials in the oven, the target temperature can be automatically judged and input by a user according to a recipe or the type of the food materials, the type of the food materials can be identified by the oven through an identification module, and the corresponding optimum heating temperature is locally taken; the deviation threshold is the maximum deviation allowed when the temperature detection is performed, and it should be noted that the deviation threshold should be interpreted to distinguish the detection accuracy and the error of the temperature detection device 131: the detection precision of the temperature detection device 131 belongs to the property category of the detection device, when the temperature detection device 131 detects the temperature inside the oven, if the temperature deviation obtained by two times of detection is smaller than the detection precision, the two times of temperature values output by the temperature detection device 131 are equal; the deviation threshold defined in the present invention is actually the deviation that can be allowed for the target temperature value.

In addition, the maximum temperature is defined as the maximum value of the temperature allowed by the food material, and has at least two meanings, on one hand, for all the oven heating recipes, the highest heating temperature is taken and defined as the maximum temperature and is preset in the temperature adjusting device, and on the other hand, for different food materials, the maximum temperature can be obtained by conversion according to the target temperature according to a certain proportional relationship, so that the temperature adjusting device 132 can be obtained by calculation after the target temperature is obtained. The meaning of the method is that when the temperature of the oven is detected to be higher than the highest temperature, not only the expected cooking purpose cannot be achieved, but also the food materials can be seriously damaged, and even safety accidents can be caused.

In summary, the purpose of the temperature adjustment device 132 is to provide the data for obtaining and outputting the data, so as to provide a requirement for the subsequent cycle control device 133 to realize temperature control, so that the control system finally achieves the effect of outputting different adjustment signals for two conditions of the deviation threshold and the highest temperature, thereby avoiding the problems in the prior art that the temperature adjustment device continuously operates to cause power consumption and untimely response, and cannot deal with the oven configured as rapid heating, achieving the technical effects of stabilizing the temperature in the oven within a certain allowable range, maintaining an excellent heating effect, and simultaneously preventing the food material from being damaged due to overhigh temperature.

Further, the circulation control device 133 is configured to receive the detected temperature, the deviation threshold value, and the maximum temperature, and output at least one power adjustment signal according to a numerical relationship between the target temperature and the detected temperature, the deviation threshold value, and the maximum temperature. Namely, the control signal is output according to the above situation, thereby achieving the above technical effect.

As shown in fig. 1, the main control unit 13 further includes a power adjusting device 134 connected to the circulation control device 133, wherein the power adjusting device 134 is configured to receive at least one power adjusting signal from the circulation control device 133 and adjust the output power to a preset minimum value or turn off the power output, in the foregoing embodiment, after the circulation control device 133 obtains the corresponding power adjusting signal through calculation, the power adjusting device may be directly connected to the power output control device of the oven itself to adjust the power output, but considering the problem of non-adaptation between the devices, in this embodiment, the power adjusting device 134 is independently disposed between the circulation control device 133 and the heating element 2, so as to control the power output to the heating element 2. It is to be emphasized that the power adjustment signal may include a plurality of signals, specifically, in the present embodiment, one of the signals is used for adjusting the output power to a preset minimum value, and the other signal is used for turning off the power output.

For the specific structural configuration of the power adjusting device 134, in this embodiment, the power adjusting device 134 specifically includes a power input end and a solid-state relay, the solid-state relay is connected to the oven power source through the power input end to obtain electric energy, and is turned on and off according to a preset frequency, so as to achieve the technical effect of outputting different powers according to different power adjusting signals. More specifically, the solid-state relay can be replaced by a thyristor in a more preferred embodiment, and the operating mode of the thyristor is contactless on-off, so that the thyristor can adapt to frequent on-off processes, and temperature fluctuation can be controlled within a small range.

Meanwhile, in the present embodiment, the power adjusting device 134 can adjust the power output in the voltage range of 0-500V and the frequency range of 0-20Hz, with the voltage adjusting accuracy of 2V and the frequency adjusting accuracy of 0.1 Hz. Correspondingly, the total output power of the power supply is 1500W-5000W, and the temperature of the oven can be kept to fluctuate within the range of +/-0.5 ℃ through experiments by matching the configuration scheme.

It is worth emphasizing that, in fig. 1, there may be a certain connection relationship between the temperature detecting device 131 and the temperature adjusting device 132, which considers that the user mainly inputs the target temperature through the temperature adjusting device 132, and in other embodiments, the maximum temperature and/or the deviation threshold value may be input through the temperature adjusting device 132, and it is understood that the temperature adjusting device 132 may serve as a unique window for the oven to interact with the user, so that the current temperature condition inside the oven detected by the temperature detecting device 131 may be fed back to the user side through the temperature adjusting device 132, so as to facilitate the user to know the current state of the food material in time.

Further, as shown in fig. 2 and fig. 3, the present invention also provides an oven 1, which includes an oven body 10 and a door for opening and closing the oven body 10, in the present invention, at least the heating assembly 2 is disposed in the oven body 10, and the oven temperature control system is configured to be selectively implemented in the oven 1, in an embodiment where at least one tray 12 is further disposed in the oven body 10, a user can put food to be heated on the tray 12 by opening the door 11, and at the same time, adjust the main control unit 13, particularly the temperature adjustment device 132, to control the temperature output of the heating assembly 2, so as to heat the food.

Further, as shown in fig. 2, the thermostat 132 may be configured as a touchable screen through which the user can observe the current temperature state and input the aforementioned related temperature data; in yet another embodiment, as shown in FIG. 3, thermostat 132 is configured as at least one knob for inputting a target temperature. For other structures inside the oven 1, the temperature detecting device 131 is disposed on a side wall inside the oven 1, specifically, in the present embodiment, disposed inside the oven 1 near a top wall of the temperature adjusting device 132, so as to simplify the wiring of the main control unit 13. Tray 12 specifically includes two kinds of overware 121 and gridion 122, wherein overware 121 can be used for heating general edible material, especially to the condition that needs lock moisture inside eating material such as baking bread, put into the mould with the raw materials processing back that finishes, it can directly put into the overware toast, and to fresh meat, for the baking effect of reduction charcoal fire gridion, can put gridion 122 on overware 121 upper portion, directly put meat in gridion 122 top, in the baking process, the meat outside forms burnt crisp taste through toasting, grease drips to overware 121 along gridion 122, can reduce the influence of grease to oven 1 internal health when guaranteeing the baking effect.

Guide rails 120 are further arranged among the baking tray 121, the grill 122 and the box body 10, the guide rails 120 are arranged on two sides of the tray 12, at least one guide rail is arranged in the height direction of the box body 10, the tray 12 is matched with the guide rails 120, and the tray is guided into the box body 10 and fixed through the guiding effect of the guide rails 120, so that the relative position of the tray in the vertical direction is limited.

As shown in fig. 3 and 4, the heating system disposed inside the oven body 10 specifically includes the heating element 2 disposed inside the oven body 10, and the fan 14 disposed on the rear wall inside the oven body 10, so that heat radiation is formed by the heating element 2, heat conduction is formed by air in the oven 1, and the fan 14 further catalyzes temperature difference convection, thereby combining the three heating methods to form a more excellent heating system.

It should be emphasized that, in addition to the cabinet 10, the door 11 and the heating element 2, other technical features provided in the preferred embodiment should be defined and combined with each other to produce several technical solutions different from the present embodiment, which are all available to those skilled in the art without inventive efforts based on the technical solutions provided by the present invention. Specifically, the heating assembly 2 is mounted to the inner two side walls of the cabinet 10 to provide heat energy to the tray 12 that slides into the interior of the cabinet 10 through the guide rails 120. On one hand, the heating component 2 and the box body 10 can be fixedly contacted through the left and right side walls in the box body, or through the top wall or the rear wall; on the other hand, in order to avoid interference between both side edges of the heating block 2 and the guide rails 120, the guide rails 120 may be disposed at intervals below the heating block 2.

At the aspect of morphological characteristics of the heating element 2, the heating element 2 is configured to be a sheet extending along the plane of a side wall in the box 10, so that the food material to be heated placed opposite to the heating element 2 can be heated uniformly. In the present embodiment, since the tray 12 for placing the food material is configured to slide into the box 10 through the guide rails 120 on the left and right side walls of the box 10, the heating element 2 may be disposed on the top wall and/or the bottom wall of the box 10, preferably, on the top wall of the box 10, and thus, the heating element 2 configured in a sheet shape extends along the plane direction of the top wall in the box 10, so as to uniformly and continuously heat the food material below.

Further, the heating unit 2 includes two heating side portions (a first heating side portion 2A and a second heating side portion 2C in the drawing) and a heating middle portion 2B located between the two heating side portions, wherein the distance between the heating middle portion 2B and the bottom wall of the case 10 is larger than the distance between the two heating side portions and the bottom wall of the case 10. Therefore, under the condition that any position below the heating assembly 2, where an object can be placed and which is close to the center, is provided with a food material to be heated, the distances between the heating middle part 2B and the two heating side parts of the heating assembly 2 and the food material to be heated are approximately equal, so that the situation that the heating assembly 2 receives electricity to provide heat is prevented, and the difference exists between the heat emitted from each position on the heating assembly 2 and the food material to be heated, so that the food material is heated unevenly, especially, in the prior art, the heating speed of the heating assembly 2 is configured to be faster, and the output power is configured to be higher.

It is emphasized that the desired technical effect of the present invention can be achieved by simply configuring the distance between the heating middle portion 2B and the opposite surface of the fixed heating element 2 to be greater than the distance between the two heating side portions and the opposite surface, and the present invention is not limited to the specific structure and shape of the heating element 2 and the relative positional relationship between the two heating side portions, for example, the heating element 2 may be configured in a "zigzag" shape, a "reverse-V" shape structure, or a similar stepped structure, and the desired technical effect can be achieved as well. Meanwhile, when the container 10 is disposed in a vertical direction, positions of the two heating side portions (the first heating side portion 2A and the second heating side portion 2C in the drawing) on both side walls of the container 10 may be configured to have the same or different heights.

Further, in this embodiment, the heating assembly 2 is configured to be disposed close to the top wall inside the box 10, and fixed between the two side walls inside the box 10 through the two heating side portions, and the overall shape of the heating assembly 2 can be observed by the user more intuitively, so that the convenience for the user to adjust the position of the food material and align with the lower portion of the heating middle portion 2B, thereby forming a more uniform heating effect. Further, the heating unit 2 is configured in a dome shape, and is curved away from the bottom wall of the cabinet 10. The term "arched" used herein is understood to mean a parabolic or circular arc structure, and also a trapezoidal, in particular isosceles trapezoidal, structure, the skilled person being able to select a corresponding embodiment according to needs and aesthetics.

In the following, further disassembling and analyzing the specific structure of the heating assembly 2 in the present invention, it is noted that the following description of the arrangement direction of the structure, especially the description of the relative position relationship between the heating assembly 2 and the matching structure thereof and each side wall of the box 10, is described in terms of the box 10 being arranged along the vertical direction, and after the user places the food material to be heated in the box 10, the state that the heating assembly 2 is always located above the food material to be heated is described, and other expressions formed by adjusting the position state of the box 10 by those skilled in the art according to the following description are all extensions based on the technical solution provided by the present invention.

As shown in fig. 3 and 4, the heating assembly 2 in the present embodiment further includes an insulating module 21 and a conductive heating module 22, the conductive heating module 22 is formed on a side close to the top wall of the insulating module 21, so that after the conductive heating module 22 receives electric heat, the insulating module 21 can radiate heat downwards, and thus the uniform heating effect is achieved. The assembled heating module 2 can be fixed on the rear wall of the box 10 by the first direction Y1 as shown in the figure, or can be erected on two side walls of the box 10 by the third direction X1 and the fourth direction X2 respectively.

Further, the heating assembly 2 further includes a heat conducting module 23 disposed on a side of the conductive heating module 22 away from the top wall, and the heat conducting module 23 is preferably disposed on a side of the insulating module 21 away from the conductive heating module 22, that is, the insulating module 21 is away from the top wall, so as to directly contact the air inside the box 10 to dissipate heat. Of course, in other embodiments, the heat conducting module 23 may also be disposed between the insulating module 21 and the conductive heat generating module 22.

In one embodiment, the heat conducting module 23 is configured to be a metal material, so as to have a strong heat conducting performance, a small thermal resistance and a high stability. Meanwhile, since the metal material tends to have a relatively excellent ductility, the requirement of configuring the entire heating element 2 into an arch shape in the present embodiment can be satisfied. Of course, configuring the heat conducting module 23 as a mica plate, a microcrystalline plate, a quartz plate, a glass plate, a ceramic plate, etc. can achieve the desired technical effect. Meanwhile, since the insulating module 21 is disposed to support the conductive heating module 22 and form an electrical shield for the conductive heating module 22, in an embodiment where the heat conducting module 23 is disposed, the insulating module 21 may be naturally disposed, or configured in a form of a high temperature resistant insulating coating, and the technical effect of forming an electrical shield for the heat conducting module 23 and the conductive heating module 22 can also be achieved.

The conductive heating module 22 may further be provided with an insulation module 24 on a side close to the top wall, so that the heating assembly 2 is fixed at the top wall of the box body 10 through the insulation module 24, and since the top wall of the box body 10 is often configured in a planar structure, the insulation module 24 may further include a curved side 241 on a side close to the conductive heating module 22 and a planar side 242 on a side close to the top wall in an embodiment, so as to form a more secure fixing structure. Meanwhile, the heat insulation module 24 and the heat conduction module 23 can form a package structure for the conductive heating module 22 to sandwich the conductive heating module 22 therebetween to shield the external temperature and electrical interference. Preferably, the heat insulation module 24 is configured to be made of heat insulation aerogel material to prevent the heat of the conductive heat generation module 22 from being transferred upwards to interfere with the body of the oven 1.

Continuously, in order to improve the overall structural stability of the heating assembly 2 and prevent the module fixed below the heat insulating module 24 from falling off during the moving process of the heat insulating module 24, the heating assembly 2 further includes a packaging module 25 disposed on one side of the conductive heating module 22 away from the insulating module 21, the packaging module 25 is configured as an insulating material, and preferably, the conductive heating module 22 is further clamped between the packaging module 25 and the insulating module 21.

So far, the structural arrangement of the heating unit 2 in the present embodiment has been described. In the assembling and disassembling process, the integrated structure of the heating assembly 2 formed above can be installed inside the box body 10 along the first direction Y1 and connected with the power supply through the rear wall of the box body 10, and can be disassembled from the inside of the box body 10 along the second direction Y2, so as to achieve the effect of "hot plugging".

Preferably, the conductive heating module 22 is configured to be made of graphene. Based on this, the heating assembly 2 has excellent heat conduction capability and infrared radiation capability, and after the power supply is connected, the electric energy is connected into the conductive heating module 22 and is in the conductive heating moduleThe conductive heating module 22 configured with graphene material has the characteristics of high conductive efficiency and high infrared radiation coefficient, and can be matched with the heat conduction module 23 at the moment of conduction to form high infrared radiation flux (M ^ T)⁴) When the oven 1 is started (within 1s by testing), the surface temperature of the heated food material is raised to be more than 85 ℃ (the internal temperature of the oven is more than 100 ℃), so that the oven 1 does not need to be preheated, and the food material can form crackles on the surface to prevent the internal water from vaporizing due to high temperature, so that the taste of being burnt outside and tender inside is achieved; meanwhile, due to the fact that the food material is high in external heating speed and high in cooking degree, a protective barrier can be formed at the bottom of other cooking degrees inside the food material, internal water loss is prevented, excessive loss of nutrients such as aromatic substances, water, grease and the like of the food material is indirectly caused, and the defects of firewood, dryness, hardness and the like of a baked product can be relieved.

Certainly, when the main control unit 13 is matched, the technical effect of slow temperature rise consistent with the prior art can be realized, and the heating assembly 2 provided by the utility model can realize the instant heating function without losing other original functions. Meanwhile, the effect of rapid temperature rise is matched with the special limitation of the utility model on the shape of the heating component 2, the oven 1 can be configured to have a high heating speed and a uniform heating effect, and the heating component is different from the technical scheme that air is heated by a resistance wire heating pipe and food materials are blown and heated by forced convection of a fan in the prior art, the heating component 2 provided by the embodiment emphasizes that the infrared radiance is improved, so that the surface temperature of the food materials is directly influenced, the characteristic of large penetration depth of infrared radiant energy is utilized, and the special arrangement that different positions of the heating component 2 and the food materials to be heated have different distances is utilized, so that the heating speed and the heating effect are greatly improved.

Further, with the embodiment in which the power conditioning device 134 is configured as a thyristor in this embodiment, the technical problem that although the thyristor in the prior art can control the temperature fluctuation within a small range, the corresponding heating temperature and power output are also very small, which results in food being smoldered is solved, that is, the disadvantage that the infrared radiance of the heating device (in this embodiment, the heating assembly 2) is increased to offset the small power output of the thyristor is overcome. In addition, in the configuration scheme of the oven 1, three heating principles can be compounded, so that the characteristics of the silicon controlled rectifier are better utilized, and the two technical effects of temperature stability and heating rapidness are considered.

Continuing with fig. 4 and 5, to analyze the specific fixed relationship of the partial structures in the heating assembly 2, in the present embodiment, the extension area of the insulating module 21 is configured to be greater than or equal to the extension area of the conductive heating module 22, so as to prevent the heat and the electric energy of the conductive heating module 22 from being dissipated from the peripheral corners. Further, the heating assembly 2 specifically includes a first heating side portion 2A and a second heating side portion 2C, and the heating assembly 2 further includes a first electrode 31 and a first wire 33 disposed on the first heating side portion 2A, and a second electrode 32 and a second wire 34 disposed on the second heating side portion 2C. Further, the first electrode 31 is configured to be connected to the conductive heating module 22 at one side and to be connected to the first lead 33 at the other side, and the second electrode 32 is configured to be connected to the conductive heating module 22 at one side and to be connected to the second lead 34 at the other side. The positions where the first electrode 31 and the second electrode 32 are connected to the conductive heating module 22 are different from each other.

On the one hand, the relative positional relationship between the first heating side portion 2A and the second heating side portion 2C and the left and right side walls of the cabinet 10 can be adjusted according to the user's needs, and the heating side portion located on the left side in the figure (the fourth direction X2 side) can be defined as the second heating side portion 2C, and the heating side portion located on the right side in the figure (the third direction X1 side) can be defined as the first heating side portion 2A;

on the other hand, in the present embodiment, the first electrode 31, the second electrode 32, the first lead 33 and the second lead 34 are all disposed on the side of the heating assembly 2 in the first direction Y1, that is, on the side of the conductive heating module 22 close to the rear wall of the oven body 10 of the oven 1, so that the first lead 33 and the second lead 34 are connected to the power supply through the rear wall. When the first electrode 31 and the first wire 33 are connected to the positive electrode of the power supply, and the second electrode 32 and the second wire 34 are connected to the negative electrode of the power supply, the current sequentially passes through the first wire 33 and the first electrode 31, enters the conductive heating module 22, and then sequentially flows into the second electrode 32 and the second wire 34 to form a loop.

Preferably, the first electrode 31 and the second electrode 32 are fixed on one side of the conductive heating module 22 close to the top wall, and are configured like the conductive heating module 22 in a sheet shape, so as to increase the power receiving area and improve the uniformity of the electric conduction. Wherein the first electrode 31 extends along the first heating side portion 2A toward the heating central portion 2B (i.e., the third direction X1 in the figure), and the second electrode 32 extends along the second heating side portion 2C toward the heating central portion 2B (i.e., the fourth direction X2 in the figure), so as to form a stable conductive heat-generating structure.

Further, in the present embodiment, the extension area of the insulating module 21 is configured to be larger than the extension area of the conductive heating module 22, and the difference in the extension areas forms an insulating gap between the conductive heating module 22 and the insulating module 21, and such a gap can be used to fix the insulating module 21 and the module above the insulating module, so as to clamp the conductive heating module 22 therebetween, for example, the conductive heating module 22 can be fixed to the encapsulation module 25 and/or the thermal insulation module 24 through the gap.

In addition, in the present embodiment, the extension area of the encapsulation module 25 is also configured to be greater than or equal to the extension area of the insulation module 21, an insulation adhesive layer 26 is further coated between the encapsulation module 25 and the insulation module 21, and the insulation adhesive layer 26 adheres the encapsulation module 25 and the insulation module 21, so that the conductive heating module 22 is clamped. Preferably, the insulating glue layer 26 may be coated around the conductive heating module 22, so as to form a more stable fixing effect.

With respect to the gap on the side close to the rear wall, that is, the gap on the side of the first direction Y1 in fig. 5, in the present embodiment, the insulating module 21 and the conductive heat generating module 22 respectively include the insulating fixing side 211 and the conductive fixing side 221 on the side close to the rear wall, and specifically, the distance between the insulating fixing side 211 and the conductive fixing side 221 is configured to be larger than the extending width of the first electrode 31 and the second electrode 32 perpendicular to the rear wall direction (the first direction Y1 in the drawing), so that the first electrode 31 and the second electrode 32 configured in a sheet shape are prevented from being exposed.

Further, the first electrode 31 and the second electrode 32 are configured to be disposed closely to the conductive fixing edge 221 side so as to respectively connect the first lead 33, the second lead 34 and the conductive heating module 22, and thus, the present invention is not limited to that the structures of the first electrode 31 and the second electrode 32 must be identical.

It is emphasized that the modules comprised in the heating element 2 described above can be separated and combined with each other to form new solutions. Typically, in one embodiment, the heating assembly 2 is configured to include four layers of an insulating module 21, a conductive heating module 22, a packaging module 25 and an insulating module 24, which are fixed in sequence, in which case the conductive heating module 22 directly radiates heat radiation through the insulating module 21 to the surface of the food material to heat the food material through the heat radiation, and preferably, in which case the insulating module 21 is configured to be a high infrared transmittance material with high temperature resistance (or stable property under high temperature condition), such as a single crystal, polycrystal, glass, ceramic, plastic, diamond-like carbon, etc., preferably a quartz glass material, and the packaging module 25 is configured to be a high temperature resistance insulating material. In another embodiment, the heating assembly 2 is configured to include a five-layer structure of a heat conducting module 23, an insulating module 21, a conductive heating module 22, a packaging module 25 and an insulating module 24 which are fixed in sequence, in which the insulating module 21 is used for shielding electric signals on the conductive heating module 22 from being emitted to the outside and is arranged as a substrate of the conductive heating module 22, so that the conductive heating module 22 cooperates with air inside the box 10 to heat food materials by heating the heat conducting module 23; in this case, the insulating module 21 does not need to be configured with a material having a high infrared transmittance.

Of course, the technical solutions generated by separately implementing the encapsulation module 25, the thermal insulation module 24 or the thermal conduction module 23 to form a matching structure with the insulation module 21 and the conductive heating module 22 can achieve corresponding technical effects, and the configuration of the related structures can be adjusted according to the needs of those skilled in the art, and the present invention is not limited herein.

In summary, in the oven 1 provided by the present invention, the sheet-shaped heating element 2 extending along the plane direction of the inner top wall of the oven body 10 is configured, so that each position in the oven body 10 can receive vertical heat radiation from the heating element 2, and meanwhile, the sheet-shaped heating element 2 is configured to have a structure with a high middle part and two low sides, when a user puts food into the middle position of the oven, distances between the heating middle part 2B and the heating side parts of the sheet-shaped heating element 2 and the food are substantially equal, so that the uniformity of heating the food is improved in multiple dimensions of the oven 1, such as the width direction, the depth direction, and the height direction.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides an oven, includes the box, and is used for the switching the door body of box, its characterized in that, the oven is still including setting up the heating element in the box, heating element configures to the edge the slice that roof place plane direction extended in the box, and includes two heating lateral parts and is located heating middle part between two heating lateral parts, the heating middle part with the interval of the diapire of box is greater than two heating lateral parts with the interval of diapire.

2. The oven of claim 1, wherein the heating assembly is disposed near a top wall inside the box body and comprises an insulating module and a conductive heating module, the conductive heating module is formed on one side of the insulating module near the top wall, and an extension area of the insulating module is configured to be greater than or equal to an extension area of the conductive heating module.

3. The oven of claim 2, wherein the heating assembly comprises a first heating side and a second heating side, the heating assembly further comprising a first electrode and a first wire disposed on the first heating side, and a second electrode and a second wire disposed on the second heating side, the first electrode configured to be connected to the conductive heating module on one side and the first wire on the other side, the second electrode configured to be connected to the conductive heating module on one side and the second wire on the other side.

4. The oven of claim 3, wherein the first electrode, the first wire, the second electrode, and the second wire are respectively disposed on a side of the conductive heating module near a rear wall of the oven, and the first wire and the second wire are connected to a power source through the rear wall.

5. The oven of claim 4, wherein the first electrode and the second electrode are fixed to a side of the conductive heat generating module close to the top wall and are respectively configured as a sheet, the first electrode extends along the first heating side portion to the heating middle portion, and the second electrode extends along the second heating side portion to the heating middle portion.

6. The oven of claim 5, wherein an extension area of the insulating module is configured to be larger than an extension area of the conductive heat generating module, the insulating module and the conductive heat generating module respectively comprise an insulating fixing edge and a conductive fixing edge near one side of the rear wall, a distance between the insulating fixing edge and the conductive fixing edge is configured to be larger than an extension width of the first electrode and the second electrode perpendicular to the direction of the rear wall, and the first electrode and the second electrode are disposed close to the conductive fixing edge.

7. The oven of claim 2, wherein the heating assembly further comprises a thermal insulation module disposed on a side of the conductive heat generating module proximate to the top wall, the thermal insulation module configured to insulate an aerogel material.

8. The oven of claim 2, wherein the heating assembly further comprises a heat conducting module disposed on a side of the heat conducting module away from the top wall, the heat conducting module being made of metal and disposed on a side of the insulating module away from the top wall.

9. The oven of claim 2, wherein the heating assembly further comprises an encapsulation module disposed on a side of the conductive heat generating module away from the insulation module, an extended area of the encapsulation module being configured to be greater than or equal to an extended area of the insulation module; an insulating glue layer is further coated between the packaging module and the insulating module, and the insulating glue layer is adhered to the packaging module and the insulating module, so that the conductive heating module is clamped between the packaging module and the insulating module.

10. The oven of claim 2, wherein the conductive heating module is configured as a graphene material and the insulating module is configured to have a high infrared transmittance.