Heating system and heating method of toaster and toaster

Abstract

The invention provides a heating system and a heating method of a toaster and the toaster, a first heating substrate and a second heating substrate of the heating system are respectively divided into a plurality of areas, and a heating coating capable of being independently controlled and a detection element for detecting the temperature of the corresponding area are arranged at the position corresponding to each area; the control module controls heating of the heating coatings. And under the condition that the heating coating heats the two heating substrates at the first power until the target temperature value is not reached and the difference value between the temperature value of the corresponding area and the target temperature value meets the preset temperature range, the control module adjusts the heating power of the heating coating of the corresponding area to the set power smaller than the first power. Each area is correspondingly provided with a heating coating, the heating efficiency of the heating coatings is higher, cooling is rapid after power failure, the control module is combined with the heating coatings so that the temperatures of the different areas can be more accurately controlled, the temperature difference range of the different areas can be narrowed, and therefore food materials subjected to conduction heating are evenly heated.

Description

Technical Field

[0001] The present application relates to the technical field of toasters, and in particular to a heating system and a heating method of a toaster, and a toaster. Background Art

[0002] Currently, toasters on the market generally use radiation heating to bake bread. That is, a heating plate with heating wires is placed on each side of the bread slot. Although this setting has the advantages of simple structure and low price, it has the disadvantage of large temperature differences between different internal positions, which leads to uneven baking of bread. Some parts of the bread are blackened due to high temperature, while other parts are not baked well due to insufficient temperature.

[0003] For example, the patent document with announcement number CN216565644U discloses a heating device and a heating equipment, including multiple heating elements and sensing components, which can detect whether there is an object to be heated. It belongs to electromagnetic heating pot detection and independent temperature control. The detection sensor is a weight sensor, a pressure sensor or an infrared sensor; it is intended to solve the problem that the heating body does not heat up in a position where no pot is placed. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide a heating system and a heating method for a toaster, and a toaster.

[0005] The embodiments of the present application adopt the following technical solutions: a heating system for a toaster, comprising a power supply circuit, a first heating substrate, a second heating substrate, a processor, and a control module;

[0006] When the power circuit is turned on, the power circuit supplies power to the heating system;

[0007] The first heating substrate and the second heating substrate are respectively divided into a plurality of regions, and each region is provided with an independently controllable heating coating and a detection element for detecting the temperature of the corresponding region; the first heating substrate and the second heating substrate heat the food from both sides of the food respectively;

[0008] The control modules are connected to the heating coatings respectively and control the heating of each heating coating respectively;

[0009] The processor is connected to the detection element and the control module respectively, and the detection element sends the temperature value signals of the corresponding areas of the first heating substrate and the second heating substrate to the processor. When the preset heating conditions are met, when the heating coating heats the first heating substrate and the second heating substrate at a first power until the target temperature value is not reached, and the difference between the temperature value signal received by the processor from the detection element and the target temperature value meets the preset temperature range, the processor sends a control signal to the control module so that the control module adjusts the heating power of the heating coating in the corresponding area to a set power, where the set power is less than the first power, and the first power is full power.

[0010] The first heating substrate and the second heating substrate are divided into multiple independently temperature-controlled areas, and a heating coating is correspondingly provided in each area. The heating coating has higher thermal efficiency and cools down quickly after power failure. The control module combined with the heating coating can achieve more precise control of the temperature of different areas, narrowing the temperature difference range of different areas, thereby achieving uniform heating of conduction-heated ingredients, and the baked ingredients taste better and look more beautiful.

[0011] In some embodiments, the heating coating disposed on the first heating substrate is disposed in the same manner as the heating coating disposed on the second heating substrate, and the heating coating is evenly disposed on the first heating substrate and the second heating substrate to achieve more uniform baking of both sides of the food.

[0012] In some embodiments, the preset heating condition is to uniformly heat the food;

[0013] The preset temperature range includes a first preset temperature range, wherein the difference in the first preset temperature range is less than a first threshold value and greater than a second threshold value;

[0014] When the first preset temperature range is met, the processor sends a first control signal to the control module, and the control module controls the heating coating of the corresponding area of the first heating substrate and / or the second heating substrate to be heated at a second power, which is less than the first heating power.

[0015] When the heating temperature approaches the target temperature value, the heating power of the corresponding area is reduced to slow down the heating speed of the corresponding area, so as to avoid the temperature of the corresponding area rising rapidly and exceeding the target temperature value, causing the food to be burnt black.

[0016] In some embodiments, the preset temperature range further includes a second preset temperature range, and the second preset temperature range is a difference less than a second threshold value;

[0017] When the second preset temperature range is met, the processor sends a second control signal to the control module, and the control module controls the heating coating of the corresponding area of the first heating substrate and / or the second heating substrate to be heated at a third power, and the third power is less than the second power. As the heating temperature gets closer to the target temperature value, in order to further avoid overheating of some areas and exceeding the target temperature value, the heating power of the corresponding area can be further reduced so that the corresponding area is heated at a slower speed.

[0018] In some embodiments, the heating coating is a thick-film or nanofilm heating material to improve heating efficiency. Heating stops immediately after power failure, preventing the release of residual heat from causing excessive temperatures in the corresponding area. Furthermore, the design of the heating coating allows for a smaller thickness of the first and second heating substrates, saving space.

[0019] The present application also provides a method for heating a toaster, comprising:

[0020] activating a power circuit of the toaster, and causing the heating coatings on all areas of the first and second heating substrates of the toaster to heat the first and second heating substrates at a first power, wherein the first power is full power, the first and second heating substrates are respectively divided into a plurality of different areas, the heating power of each area being independently controllable, and the first and second heating substrates respectively heating the food from both sides of the food;

[0021] Acquire current temperature values of all areas on the first heating substrate and the second heating substrate;

[0022] Determine the difference between the current temperature value and the target temperature value of each area;

[0023] When the preset heating conditions are met and the difference is within the preset temperature range, the heating power of the corresponding area is reduced to a set power, wherein the set power is less than the first power.

[0024] By obtaining the temperature values of various areas on the first heating substrate and the second heating substrate, comparing the obtained temperature values with the target temperature values and determining the difference between the two, when the preset heating conditions are met and the difference falls within the preset temperature range, the heating power of the corresponding area is reduced to achieve more precise control of the temperature of different areas and narrow the temperature difference range of different areas, thereby achieving uniform heating of the conduction-heated food, and the baked food tastes better and looks more beautiful.

[0025] In some embodiments, the preset heating condition is to uniformly heat the food;

[0026] The preset temperature range includes a first preset temperature range, and the first preset temperature range is a range in which the difference is less than a first threshold and greater than a second threshold.

[0027] When the first preset temperature range is met, the heating power of the corresponding areas of the first and second heating substrates is reduced to a second power, which is less than the first heating power. When the heating temperature approaches the target temperature, the heating power of the corresponding areas is reduced to slow the heating speed of the corresponding areas, preventing the temperature of the corresponding areas from rising rapidly and exceeding the target temperature, causing the food to burn.

[0028] In some embodiments, the preset temperature range further includes a second preset temperature range, and the second preset temperature range is a difference less than a second threshold value;

[0029] When the temperature of the corresponding area is heated at the second power to a second preset temperature range, the heating power of the corresponding area is reduced to a third power, which is lower than the second power. As the heating temperature approaches the target temperature, in order to further prevent some areas from overheating and exceeding the target temperature, the heating power of the corresponding area can be further reduced, so that the corresponding area is heated at a slower rate.

[0030] In some embodiments, if the temperature of the corresponding area does not reach the target temperature within the first preset time, the heating power of the corresponding area is adjusted to a fourth power, which is greater than the third power, to improve the baking efficiency of the food.

[0031] An embodiment of the present application further provides a toaster, which includes a heating system as described in any one of the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0033] Figure 1 This is a structural block diagram of the heating system of this application;

[0034] Figure 2 This is a schematic diagram of the design structure of a detection module on a heating plate in this application;

[0035] Figure 3 This is a schematic diagram of the different areas on a heating plate according to one embodiment of the present application. DETAILED DESCRIPTION

[0036] Various aspects and features of the present application are described herein with reference to the accompanying drawings.

[0037] It should be understood that various modifications may be made to the embodiments of the present application. Therefore, the above description should not be considered as limiting, but merely as an example of an embodiment. Other modifications within the scope and spirit of the present application will occur to those skilled in the art.

[0038] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present application and, together with the general description of the present application given above and the detailed description of the embodiments given below, serve to explain the principles of the present application.

[0039] These and other characteristics of the present application will become apparent from the following description of a preferred form of embodiment given as a non-limiting example with reference to the accompanying drawings.

[0040] It should also be understood that although the present application has been described with reference to certain specific examples, those skilled in the art will readily be able to implement many other equivalent forms of the present application.

[0041] The above and other aspects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

[0042] Specific embodiments of the present application will be described hereinafter with reference to the accompanying drawings; however, it should be understood that the embodiments described are merely examples of the present application and may be implemented in a variety of ways. Familiar and / or repetitive functions and structures are not described in detail to avoid obscuring the present application with unnecessary or redundant details. Therefore, the specific structural and functional details described herein are not intended to be limiting, but rather serve merely as a basis and representative basis for the claims to teach those skilled in the art to variously utilize the present application with substantially any suitable detailed structure.

[0043] This specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may all refer to one or more of the same or different embodiments according to the present application.

[0044] The embodiment of the present application provides a heating system for a toaster, Figure 1 The heating system includes a power supply circuit, a first heating substrate, a second heating substrate, a processor, and a control module.

[0045] The power circuit can be turned on or off according to the needs of the user. When the power circuit is turned on, the power circuit can power the heating system. Here, the power circuit can power the processor, the control module, and the first heating substrate and the second heating substrate. The power circuit can also be connected to the zero-crossing detection circuit module. The zero-crossing detection circuit can be an electronic circuit for detecting the moment when the level of an AC signal (such as a sine wave) passes through zero (the point where the voltage or current is zero) from the positive half cycle to the negative half cycle or from the negative half cycle to the positive half cycle. The zero-crossing moment of the AC signal can be accurately captured to provide a synchronous trigger signal for the subsequent circuit.

[0046] The first heating substrate and the second heating substrate are respectively divided into a plurality of areas, and a heating coating that can be independently controlled and a detection element for detecting the temperature of the corresponding area are provided at the position of each area. It should be noted that the number of areas is also related to the size of the first heating substrate and the second heating substrate, and there may be no obvious boundary between the areas. The first heating substrate and the second heating substrate are used to bake and heat the food on the surface facing the food, and the other surface can be provided with a heating coating and the above-mentioned detection element. The first heating substrate and the second heating substrate heat the food from both sides of the food respectively to evenly bake the food, such as bread.

[0047] In some embodiments, the heating coating is a thick-film or nanofilm heating material to improve heating efficiency. Upon power failure, the heating coating immediately stops heating, preventing the release of residual heat from traditional heating devices such as heating wires, which can cause excessive temperatures in the corresponding area. Furthermore, the design of the heating coating allows for a smaller thickness of the first and second heating substrates, saving space.

[0048] Combine Figure 2 The above-mentioned detection element can be a high-temperature NTC temperature detection module. A high-temperature NTC temperature detection module corresponding to each heating coating in each area can be individually set, such as NT (1) to NT (6) in the figure. The high-temperature NTC temperature detection modules on the same heating substrate can be concentrated on a common terminal pad. All high-temperature NTC temperature detection modules can be connected to a processor and send detection signals to the processor.

[0049] The processor is also connected to a control module, which is connected to the heating coatings of the two heating substrates and controls the heating of each heating coating. The processor can control the operation of the control module. Specifically, after receiving a detection signal from the detection module, the processor can control the operation of the control module based on the detection signal. The control module can control whether each heating coating is heated and the amount of heating power, etc.

[0050] The detection element sends the temperature value signals of the corresponding areas of the first heating substrate and the second heating substrate to the processor. When the preset heating conditions are met, when the heating coating heats the first heating substrate and the second heating substrate at a first power until the target temperature value is not reached, and the difference between the temperature value signal received by the processor from the detection element and the target temperature value meets the preset temperature range, the processor sends a control signal to the control module so that the control module adjusts the heating power of the heating coating in the corresponding area to a set power, where the set power is less than the first power, and the first power is full power.

[0051] For example, the heating coating can be powered by 220V or 110V AC, and its temperature rise can reach 300 degrees. The temperature of any area can be controlled and adjusted according to actual needs, and the temperature difference between different positions on the surface of the heated substrate can be within 5 degrees.

[0052] The detection modules corresponding to all zones can monitor the temperature of the corresponding zones in real time. If any zone is found to be too hot, the heating power of that zone will be reduced to the set power to ensure that the temperature in that zone does not exceed the target temperature value, but reaches the target temperature value at a relatively slow rate. If the temperature of any zone is found to be low or the heating speed is not fast enough, the heating power of the corresponding heating coating can be increased to achieve uniform temperature across different zones.

[0053] During use, the heating system can initially heat the heating coating in all areas at full power, allowing the first and second heating substrates to heat up rapidly, improving the efficiency of baking the food. Once heated to a certain temperature, i.e., when the temperature approaches the target temperature, the heating power can be reduced, allowing the heating coating to cool down rapidly, causing the temperature of the corresponding areas of the first and second heating substrates to rise more slowly. This avoids the situation where traditional heating methods, such as electric heating wires, cool down more slowly even after power is turned off, causing the temperature of the heating substrates to continue to rise rapidly, easily exceeding the target temperature and causing the food to be burnt black.

[0054] In some embodiments, the preset heating condition is to uniformly heat the food.

[0055] The preset temperature range includes a first preset temperature range, where the difference is less than a first threshold and greater than a second threshold. For example, if the target temperature is 300 degrees Celsius, and the heating coating in a region R1 of the heating substrate is heated at a first power (i.e., full power) after the toaster is turned on, the temperature of R1 will rise rapidly. When the temperature of R1 rises to 280 degrees Celsius, the difference between its temperature and the target temperature is 20 degrees Celsius, the second threshold is 10 degrees Celsius, and the first threshold is 30 degrees Celsius, then the first preset temperature range is considered to be met.

[0056] When the first preset temperature range is met, the processor sends a first control signal to the control module, and the control module controls the heating coating of the corresponding area of the first heating substrate and / or the second heating substrate to be heated at a second power, which is less than the first heating power.

[0057] For example, if the first power is 600 watts, the second power may be several tens of watts, which is much smaller than 600 watts, or even lower, so as to quickly reduce the temperature rise rate of R1.

[0058] When the heating temperature approaches the target temperature value, the heating power of the corresponding area is reduced to slow down the heating speed of the corresponding area, so as to avoid the temperature of the corresponding area rising rapidly and exceeding the target temperature value, causing the food to be burnt black.

[0059] In some embodiments, the preset temperature range further includes a second preset temperature range, and the second preset temperature range has a difference value less than a second threshold value.

[0060] When the second preset temperature range is met, the processor sends a second control signal to the control module, and the control module controls the heating coating of the corresponding area of the first heating substrate and / or the second heating substrate to be heated at a third power, and the third power is less than the second power. As the heating temperature gets closer to the target temperature value, in order to further avoid overheating of some areas and exceeding the target temperature value, the heating power of the corresponding area can be further reduced so that the corresponding area is heated at a slower speed.

[0061] Continuing with the above embodiment, as R1 is heated at the second power, the temperature of the area will still rise slowly. When the difference between the temperature of R1 and the target temperature value of 300 degrees is smaller and approaches the target temperature value, the heating power of the heating coating corresponding to R1 can be reduced again to a power value lower than the second power. For example, the third power can be several watts, and R1 is heated at a slower speed to further prevent the temperature of R1 from exceeding the target temperature value.

[0062] Of course, it is understood that the values of the first and second thresholds and the specific data of the first, second, and third powers are merely examples, and the specific values can be set as needed. This is merely an example and does not limit the scope of protection of the claims.

[0063] The embodiment of the present application divides the first heating substrate and the second heating substrate into multiple independently temperature-controlled areas, and a heating coating is correspondingly provided in each area. The heating coating has higher thermal efficiency and cools down quickly after power failure. The control module combined with the heating coating can achieve more precise control of the temperature of different areas, narrowing the temperature difference range of different areas, thereby achieving uniform heating of conduction-heated ingredients, and the baked ingredients taste better and have a more beautiful appearance.

[0064] In some embodiments, the heating coating disposed on the first heating substrate is disposed in the same manner as the heating coating disposed on the second heating substrate, and the heating coating is evenly disposed on the first heating substrate and the second heating substrate to achieve more uniform baking of both sides of the food.

[0065] For example, combined with Figure 3 Taking the first heating substrate as an example, the first heating substrate can be divided into nine zones, each with a corresponding heating coating, and the heating coatings are evenly arranged in a matrix. The second heating substrate can be divided into zones and the heating coatings are arranged in the same manner as the first heating substrate, so that the food can be evenly toasted from both sides.

[0066] Of course, it is understandable that the manner in which the areas on the two heating substrates are divided and the number of area divisions may also be other manners and numbers. This is merely an example and does not constitute a limitation on the scope of protection of the claims.

[0067] The present application also provides a method for heating a toaster, comprising:

[0068] The toaster's power circuit is activated, and the heating coatings on all areas of the first and second heating substrates of the toaster are heated at a first power, where the first power is full power. That is, when starting to toast food, the toaster heats the heating coatings at maximum power, allowing the first and second heating substrates to heat up quickly, thereby improving the toasting efficiency and meeting the needs of users living in fast-paced lifestyles.

[0069] The toaster's first and second heating substrates are located on either side of the food, heating it from both sides. For example, in the case of bread, the first heating substrate toasts one side of the bread, while the second heating substrate toasts the other side.

[0070] The first heating substrate and the second heating substrate are respectively divided into a plurality of different areas, and there may be no obvious boundaries between different areas on the same heating substrate. A heating coating can be set at each area position, and the heating power of the heating coating in each area can be independently controlled.

[0071] The heating coating is constructed of thick-film or nanofilm materials to improve heating efficiency. It immediately stops heating after a power outage, preventing the release of residual heat from traditional heating devices like heating wires, which can cause excessive temperatures in the corresponding area. Furthermore, the design of the heating coating allows for a smaller thickness for both the first and second heating substrates, saving space.

[0072] The first heating substrate and the second heating substrate have their surfaces facing the food materials for baking and heating the food materials, and the other surface can be provided with a heating coating and a detection element for detecting the temperature of the corresponding area.

[0073] The current temperature values of all regions on the first heating substrate and the second heating substrate can be acquired through the detection elements. Each region corresponds to a separate detection element for detecting the temperature value of the region.

[0074] The detection element can send the temperature detection results to the processor, which can then process the temperature detection results. For example, the processor can determine the difference between the current temperature value of each zone and the target temperature value. The target temperature value can be pre-stored in the processor or set according to user needs. For example, the target temperature value can be different for baking ingredients of different thicknesses; the target temperature value can also be different for baking different ingredients; that is, the target temperature value can be set to different temperature values based on the baking ingredients or baking mode.

[0075] When the preset heating conditions are met and the difference is within the preset temperature range, the heating power of the corresponding area is reduced to a set power, wherein the set power is less than the first power.

[0076] By obtaining the temperature values of various areas on the first heating substrate and the second heating substrate, comparing the obtained temperature values with the target temperature values and determining the difference between the two, when the preset heating conditions are met and the difference falls within the preset temperature range, the heating power of the corresponding area is reduced to achieve more precise control of the temperature of different areas and narrow the temperature difference range of different areas, thereby achieving uniform heating of the conduction-heated food, and the baked food tastes better and looks more beautiful.

[0077] In some embodiments, the preset heating condition is to uniformly heat the food. The preset temperature range includes a first preset temperature range, and the first preset temperature range is a difference that is less than a first threshold and greater than a second threshold. For example, the target temperature value is 300 degrees. Taking an area R1 in the heating substrate as an example, the heating coating in this area will be heated at a first power (i.e., full power) after the toaster is started. The temperature of R1 will rise rapidly. When the temperature of R1 rises to 280 degrees, the difference between its temperature value and the target temperature value is 20 degrees, the second threshold is 10 degrees, and the first threshold is 30 degrees. It can be considered that the first preset temperature range is met.

[0078] When the first preset temperature range is met, the heating power of the corresponding areas of the first heating substrate and the second heating substrate is reduced to a second power, where the second power is lower than the first heating power.

[0079] For example, if the first power is 600 watts, the second power may be several tens of watts, which is much smaller than 600 watts, or even lower, so as to quickly reduce the temperature rise rate of R1.

[0080] The detection modules corresponding to all zones can monitor the temperature of the corresponding zones in real time. If any zone is found to be too hot, the heating power of that zone will be reduced to the set power to ensure that the temperature in that zone does not exceed the target temperature value, but reaches the target temperature value at a relatively slow rate. If the temperature of any zone is found to be low or the heating speed is not fast enough, the heating power of the corresponding heating coating can be increased to achieve uniform temperature across different zones.

[0081] That is, after the heating coating heats the corresponding area to a certain temperature, when the temperature is close to the target temperature value, the heating power can be reduced. At this time, the heating coating can be cooled quickly, so that the temperature of the corresponding areas of the first heating substrate and the second heating substrate increases at a relatively slow rate, avoiding the situation where traditional heating methods such as electric heating wires cool down slowly even after power is cut off, causing the temperature of the heating substrate to still rise at a high rate, which is easy to exceed the target temperature value and cause the food to be roasted black.

[0082] The heating coating can be made of thick film heating material or nano film heating material, etc., and combined with the control of the above heating method, the heating efficiency and cooling efficiency can be improved.

[0083] When the heating temperature approaches the target temperature value, the heating power of the corresponding area is reduced to slow down the heating speed of the corresponding area, so as to avoid the temperature of the corresponding area rising rapidly and exceeding the target temperature value, causing the food to be burnt black.

[0084] In some embodiments, the preset temperature range further includes a second preset temperature range, wherein the difference in the second preset temperature range is less than a second threshold. When the corresponding area is heated at the second power to a temperature within the second preset temperature range, the heating power to the corresponding area is reduced to a third power, wherein the third power is less than the second power. As the heated temperature approaches the target temperature, the heating power to the corresponding area can be further reduced to further prevent overheating of some areas and exceeding the target temperature, so that the corresponding area is heated at a slower rate.

[0085] Continuing with the above embodiment, as R1 is heated at the second power, the temperature of the area will still rise slowly. When the difference between the temperature of R1 and the target temperature value of 300 degrees is smaller and approaches the target temperature value, the heating power of the heating coating corresponding to R1 can be reduced again to a power value lower than the second power. For example, the third power can be several watts, and R1 is heated at a slower speed to further prevent the temperature of R1 from exceeding the target temperature value.

[0086] Of course, it is understood that the values of the first and second thresholds and the specific data of the first, second, and third powers are merely examples, and the specific values can be set as needed. This is merely an example and does not limit the scope of protection of the claims.

[0087] In some embodiments, if the temperature of the corresponding area does not reach the target temperature within the first preset time, the heating power of the corresponding area is adjusted to a fourth power, which is greater than the third power. The fourth power can be equal to the second power, or it can be less than the second power, so as to improve the baking efficiency of the food. Because the third power is already very small, the temperature of the corresponding area may heat up very slowly. If the target temperature value is not reached for a long time, the baking power of the corresponding area can be appropriately increased to slightly increase the temperature rise rate of the area but not to the point where it heats up too quickly and causes the food to be roasted black. At this point, the heating power of the corresponding area can be readjusted to the second power. Of course, the heating power can also be adjusted to the fourth power, where the fourth power can be a value greater than the third power and less than the second power.

[0088] An embodiment of the present application further provides a toaster, which includes a heating system as described in any one of the above embodiments.

[0089] The heating system of the toaster can use the above heating method to heat the food, so as to achieve uniform baking of the food.

[0090] Of course, the toaster can also be used to heat different ingredients to different degrees of toasting. For example, the two halves of a slice of bread can be toasted to different degrees, but the toasting of the same half of the bread is required to be the same. In this case, the heating power of different areas of the heating coating can be controlled independently to toast different locations on the same slice of bread to different degrees. The above heating method can be used to toast the same half of the bread to the same toasting degree (uniform toasting).

[0091] Because different areas can be controlled individually, when the actual size of the food is relatively small, the corresponding area can be stopped from heating, or the corresponding area can be heated at a low temperature, which can cook the food better on the one hand and achieve more energy-saving goals on the other.

[0092] The above describes in detail several embodiments of the present application, but the present application is not limited to these specific embodiments. Those skilled in the art can make various variations and modifications to the embodiments based on the concept of the present application, and these variations and modifications should all fall within the scope of protection claimed by the present application.

Claims

1. A heating system for a toaster, characterized in that: It includes a power supply circuit, a first heating substrate, a second heating substrate, a processor, and a control module; When the power circuit is turned on, the power circuit supplies power to the heating system; The first heating substrate and the second heating substrate are respectively divided into a plurality of regions, and each region is provided with an independently controllable heating coating and a detection element for detecting the temperature of the corresponding region; the first heating substrate and the second heating substrate heat the food from both sides of the food respectively; The control modules are connected to the heating coatings respectively and control the heating of each heating coating respectively; The processor is connected to the detection element and the control module respectively, and the detection element sends the temperature value signals of the corresponding areas of the first heating substrate and the second heating substrate to the processor. When the preset heating conditions are met, when the heating coating heats the first heating substrate and the second heating substrate at a first power until the target temperature value is not reached, and the difference between the temperature value signal received by the processor from the detection element and the target temperature value meets the preset temperature range, the processor sends a control signal to the control module so that the control module adjusts the heating power of the heating coating in the corresponding area to a set power, where the set power is less than the first power, and the first power is full power.

2. The heating system of a toaster according to claim 1, characterized in that: The heating coating layer disposed on the first heating substrate is disposed in the same manner as the heating coating layer disposed on the second heating substrate, and the heating coating layer is uniformly disposed on the first heating substrate and the second heating substrate.

3. The heating system of a toaster according to claim 1, characterized in that: The preset heating condition is to heat the food evenly; The preset temperature range includes a first preset temperature range, wherein the difference in the first preset temperature range is less than a first threshold value and greater than a second threshold value; When the first preset temperature range is met, the processor sends a first control signal to the control module, and the control module controls the heating coating of the corresponding area of the first heating substrate and / or the second heating substrate to be heated at a second power, which is less than the first heating power.

4. The heating system of a toaster according to claim 3, characterized in that: The preset temperature range further includes a second preset temperature range, wherein the second preset temperature range has a difference value less than a second threshold value; When the second preset temperature range is met, the processor sends a second control signal to the control module, and the control module controls the heating coating of the corresponding area of the first heating substrate and / or the second heating substrate to be heated at a third power, and the third power is less than the second power.

5. The heating system of a toaster according to claim 1, characterized in that: The heating coating is a thick film heating material or a nano film heating material.

6. A method for heating a toaster, characterized in that: include: activating a power circuit of the toaster, and causing the heating coatings on all areas of the first and second heating substrates of the toaster to heat the first and second heating substrates at a first power, wherein the first power is full power, the first and second heating substrates are respectively divided into a plurality of different areas, the heating power of each area being independently controllable, and the first and second heating substrates respectively heating the food from both sides of the food; Acquire current temperature values of all areas on the first heating substrate and the second heating substrate; Determine the difference between the current temperature value and the target temperature value of each area; When the preset heating conditions are met and the difference is within the preset temperature range, the heating power of the corresponding area is reduced to a set power, wherein the set power is less than the first power.

7. The method according to claim 6, characterized in that The preset heating condition is to heat the food evenly; The preset temperature range includes a first preset temperature range, wherein the difference in the first preset temperature range is less than a first threshold value and greater than a second threshold value; When the first preset temperature range is met, the heating power of the corresponding areas of the first heating substrate and the second heating substrate is reduced to a second power, where the second power is lower than the first heating power.

8. The method according to claim 6, characterized in that The preset temperature range further includes a second preset temperature range, wherein the second preset temperature range has a difference value less than a second threshold value; When the temperature of the corresponding area is heated to a second preset temperature range at the second power, the heating power of the corresponding area is reduced to a third power, where the third power is lower than the second power.

9. The method according to claim 8, characterized in that If the temperature of the corresponding area does not reach the target temperature within the first preset time, the heating power of the corresponding area is adjusted to a fourth power, where the fourth power is greater than the third power.

10. A toaster, characterized in that: The toaster comprises the heating system according to any one of claims 1 to 5.

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