Gas oven with variable temperature area and control method

By setting multiple heating areas and temperature probes in the gas oven and adjusting the heating power of the burner using the main control board, the problem of uneven heating of the existing gas oven is solved, and the precise temperature control of each heating area and the effect of uniform heating of food is achieved.

CN119924713APending Publication Date: 2025-05-06VATTI CORP LTD
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Patent Information

Application Number
CN202411914607.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-05-06

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Abstract

The invention relates to a variable-temperature-zone gas oven and a control method, and belongs to the technical field of gas ovens. The method comprises the steps that the real-time temperatures of an upper heating zone, a left heating zone and a right heating zone are obtained through a temperature probe, and the upper temperature rising duration, the left temperature rising duration and the right temperature rising duration are obtained according to the real-time temperatures and the preset change temperature; the adjustment proportion is obtained according to the temperature rise duration, the heating power of the left combustor and the heating power of the right combustor are adjusted according to the preset heating mode, the real-time temperature and the adjustment proportion, then accurate temperature control is conducted on the left heating area and the right heating area, and the heating temperature of each heating area can be kept at the unified target temperature. And the heated food is heated more uniformly.
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Description

Technical Field

[0001] The present application relates to the technical field of gas ovens, and in particular to a gas oven with variable temperature zones and a control method thereof. Background Art

[0002] With the development of society and the advancement of technology, people's quality of life requirements are getting higher and higher. People who like to eat barbecue hope to be able to barbecue at home. However, traditional electric ovens and gas ovens can only roughly adjust the fire through the stopcock, and lack precise temperature control of different heating areas inside the oven, which easily causes uneven heating problems. Summary of the invention

[0003] To this end, the present invention provides a gas oven with variable temperature zones and a control method thereof, so as to solve the problem of uneven heating caused by the lack of precise temperature control of different heating zones inside the oven in the existing oven.

[0004] In a first aspect, a gas oven with a variable temperature zone is provided, the gas oven comprising:

[0005] Oven housing, oven cavity and main control panel;

[0006] An upper heating tube is arranged on the top wall of the oven cavity, and the upper heating tube is connected to a power regulating device; a left burner is arranged on the bottom of the left wall of the oven cavity; a right burner is arranged on the bottom of the right wall of the oven cavity; both the left burner and the right burner are provided with a pulse igniter and an electronically controlled gas regulating valve; an upper temperature probe is arranged at the middle upper position of the rear wall of the oven cavity; a left temperature probe is arranged at the lower left position of the rear wall of the oven cavity; and a right temperature probe is arranged at the lower right position of the rear wall of the oven cavity;

[0007] The power regulating device, the pulse igniter, the electronically controlled gas regulating valve, the upper temperature probe, the left temperature probe and the right temperature probe are electrically connected to the main control board respectively.

[0008] In a second aspect, a control method for a variable temperature zone gas oven is provided, which is applied to the above-mentioned gas oven, and the control method comprises:

[0009] Acquire the real-time temperature of the heating area through the temperature probe; the heating area includes the upper heating area, the left heating area and the right heating area;

[0010] The heating time of the heating area is obtained according to the real-time temperature and the preset change temperature; the heating time includes the heating time, the left heating time and the right heating time;

[0011] An adjustment ratio is obtained according to the heating time; the adjustment ratio includes a standard ratio, a high speed ratio and a low speed ratio;

[0012] The heating power of the burner is adjusted according to the preset heating mode, the real-time temperature and the adjustment ratio so that the temperature of each heating area is maintained at the target temperature; the preset heating mode includes a constant temperature zone mode and a variable temperature zone mode; the burner includes a left burner and a right burner.

[0013] Furthermore, the adjustment ratio is obtained according to the heating time, including:

[0014] When the left heating time is shorter than the right heating time,

[0015] The calculation formula of the left standard ratio is:

[0016] DL 左标准 =TL / TR;

[0017] The calculation formula of the left high speed ratio is:

[0018] DL 左高速 =(TL×0.5+TR×0.5) / TR;

[0019] The calculation formula of the left low speed ratio is:

[0020] DL 左低速 =(TL×1.5-TR×0.5) / TR;

[0021] Among them, DL 左标准 For the left standard ratio; DL 左高速 For left high speed ratio; DL 左低速 is the left low speed ratio; TR is the right heating time; TL is the left heating time.

[0022] Further, adjusting the heating power of the burner according to the preset heating mode, the real-time temperature and the adjustment ratio includes:

[0023] When the preset heating mode is the constant temperature zone mode and the left heating time is shorter than the right heating time;

[0024] If the real-time temperature of the left heating area is greater than the real-time temperature of the right heating area, the heating power calculation formula of the left burner is: PL 左实际 =PL 预设 ×DL 左低速 ;

[0025] If the real-time temperature of the left heating area is equal to the real-time temperature of the right heating area, the heating power calculation formula of the left burner is: PL 左实际 =PL 预设 ×DL 左标准 ;

[0026] If the real-time temperature of the left heating area is lower than that of the right heating area, the heating power calculation formula of the left burner is: PL 左实际 =PL 预设 ×DL 左高速 ;

[0027] Among them, PL 左实际 is the real-time heating power of the left burner; PL 预设 The preset power of the left burner is obtained according to the set target temperature; DL 左低速 DL is the left low speed ratio; 左标准 For the left standard ratio; DL 左高速 It is the left high speed ratio.

[0028] Furthermore, the adjustment ratio is obtained according to the heating time, including:

[0029] When the right heating time is shorter than the left heating time,

[0030] The calculation formula of the right standard ratio is:

[0031] DR 右标准 =TR / TL;

[0032] The calculation formula of the right high speed ratio is:

[0033] DR 右高速 =(TR×0.5+TL×0.5) / TL;

[0034] The calculation formula of the right low speed ratio is:

[0035] DR 右低速 =(TR×1.5-TL×0.5) / TL;

[0036] Among them, DL 右标准 For the right standard ratio; DL 右高速 For the right high speed ratio; DL 右低速 is the right low speed ratio; TR is the right heating time; TL is the left heating time.

[0037] Further, adjusting the heating power of the burner according to the preset heating mode, the real-time temperature and the adjustment ratio includes:

[0038] When the preset heating mode is the constant temperature zone mode and the right heating time is shorter than the left heating time;

[0039] If the real-time temperature of the right heating area is greater than the real-time temperature of the left heating area, the heating power calculation formula of the right burner is: PL 右实际 =PL 预设 ×DL 右低速 ;

[0040] If the real-time temperature of the right heating area is equal to the real-time temperature of the left heating area, the heating power calculation formula of the right burner is: PL 右实际 =PL 预设 ×DL 右标准 ;

[0041] If the real-time temperature of the right heating area is lower than that of the left heating area, the heating power calculation formula of the right burner is: PL 右实际 =PL 预设 ×DL 右高速 ;

[0042] Among them, PL 右实际 is the real-time heating power of the right burner; PL 预设 The preset power of the right burner is obtained according to the set target temperature; DL 右低速 Right low speed ratio; DL 右标准 Right standard ratio; DL 右高速 It is the right high speed ratio.

[0043] Furthermore, the step of obtaining the heating time of the heating area according to the real-time temperature and the preset change temperature includes:

[0044] Acquire the initial temperature and the first time point of the temperature probe when the heating area starts to heat;

[0045] When the difference between the real-time temperature of the temperature probe and the initial temperature is the preset change temperature, obtaining a second time point;

[0046] The duration between the second time point and the first time point is used as the heating duration of the corresponding heating area.

[0047] Furthermore, the method further comprises:

[0048] When the preset heating mode is the variable temperature zone mode, the left preset heating power of the left burner is obtained according to the preset left target temperature;

[0049] Heating is performed according to the left preset heating power and the real-time temperature of the left heating area is obtained;

[0050] The heating power of the left burner is adjusted according to the difference between the real-time temperature of the left heating area and the left target temperature.

[0051] Furthermore, the method further comprises:

[0052] When the preset heating mode is the variable temperature zone mode, the right preset heating power of the right burner is obtained according to the preset right target temperature;

[0053] Heating is performed according to the right preset heating power and the real-time temperature of the right heating area is obtained;

[0054] The heating power of the right burner is adjusted according to the difference between the real-time temperature of the right heating area and the right target temperature.

[0055] Furthermore, the method further comprises:

[0056] If the left heating time is equal to the right heating time, the heating power of the left burner and the right burner is not adjusted.

[0057] The present invention adopts the above technical solution and has at least the following beneficial effects:

[0058] Provided are a gas oven with variable temperature zones and a control method. The real-time temperatures of an upper heating zone, a left heating zone and a right heating zone are obtained by a temperature probe. The heating-up time, the left heating-up time and the right heating-up time are obtained according to the real-time temperature and a preset change temperature. The adjustment ratio is obtained according to the heating time. The heating power of a left burner and a right burner is adjusted according to a preset heating mode, the real-time temperature and the adjustment ratio. Then, the temperature of the left heating zone and the right heating zone is precisely controlled. The heating temperature of each heating zone can be maintained at a uniform target temperature, so that the heated food is heated more evenly.

[0059] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0061] Figure 1 is a structural schematic diagram A of a gas oven with variable temperature zones shown in an exemplary embodiment of the present invention;

[0062] Figure 2 is a structural schematic diagram B of a gas oven with variable temperature zones shown in an exemplary embodiment of the present invention;

[0063] Figure 3 It is a flow chart of a control method of a variable temperature zone gas oven shown in an exemplary embodiment of the present invention. DETAILED DESCRIPTION

[0064] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0065] The existing traditional electric ovens cannot achieve the instantaneous high-temperature baking effect of fire baking due to power limitations, and most common gas ovens can only roughly adjust the fire through a plug valve, and it is difficult to accurately control the temperature. Therefore, the present invention proposes a gas oven temperature control method.

[0066] The embodiment of the present application provides a gas oven with a variable temperature zone and a control method, which uses two gas heating sources and one electric heating source to actively change the uniformity of the temperature field in the cavity, and is suitable for baking foods with different temperature requirements at the same time.

[0067] The gas oven and control method in the present application are described below through specific embodiments.

[0068] See also Figure 1 , Figure 2 , Figure 1 FIG. 1 is a schematic structural diagram A of a gas oven with variable temperature zones according to an exemplary embodiment of the present invention. Figure 2 FIG. 1 is a schematic diagram B of a gas oven with variable temperature zones according to an exemplary embodiment of the present invention. Figure 1 , Figure 2 The gas oven comprises: an oven shell 1, an oven cavity 2 and a main control board; an upper heating tube 3 is arranged on the top wall of the oven cavity 2, and the upper heating tube 3 is connected to a power regulating device; a left burner 4 is arranged at the bottom position on the left wall of the oven cavity 2; a right burner 5 is arranged at the bottom position on the right wall of the oven cavity 2; both the left burner 4 and the right burner 5 are provided with a pulse igniter and an electronically controlled gas regulating valve; an upper temperature probe 6 is arranged at the middle upper position of the rear wall of the oven cavity 2; a left temperature probe 7 is arranged at the lower left position of the rear wall of the oven cavity 2; a right temperature probe 8 is arranged at the lower right position of the rear wall of the oven cavity 2; the power regulating device, the pulse igniter, the electronically controlled gas regulating valve, the upper temperature probe 6, the left temperature probe 7 and the right temperature probe 8 are electrically connected to the main control board respectively.

[0069] It should be noted that the main control board is responsible for controlling all loads and processing all input and output data. The electric heating tube is located on the top of the oven for auxiliary heating. There are two burners, located on the left and right sides of the oven for main heating. There are two pulse igniters, which are responsible for generating high-voltage pulses and igniting the gas near the burner. There are two electronically controlled gas regulating valves, which are responsible for adjusting the gas flow of the left and right burners respectively. The gas regulating valve can be a proportional valve, a stepper motor, a butterfly valve, etc., which can adjust the flow through electronic control. The gas switch valve is responsible for switching the main gas circuit. The gas needs to pass through this switch valve and then be diverted to the left and right gas regulating valves respectively. There are two flame detectors, which are responsible for detecting whether there is flame burning near the left and right burners respectively. There are three temperature probes, namely the left temperature probe, the right temperature probe, and the upper temperature probe, which are responsible for detecting the temperature of the corresponding area in the oven box. The display operation panel is responsible for interacting with the user, including power on and off, adjusting the target temperature, setting the mode, displaying and other functions.

[0070] It can be understood that the gas oven provided in this embodiment obtains the real-time temperatures of the upper heating area, the left heating area and the right heating area through the temperature probe, obtains the heating time, the left heating time and the right heating time according to the real-time temperature and the preset change temperature, obtains the adjustment ratio according to the heating time, and adjusts the heating power of the left burner and the right burner according to the preset heating mode, the real-time temperature and the adjustment ratio, thereby accurately controlling the temperature of the left heating area and the right heating area, which can realize heating of different target temperatures for different foods placed in the left and right heating areas, and can also realize that the heating temperature of each heating area is maintained at a uniform target temperature, so that the heated food is heated more evenly.

[0071] See also Figure 3 , Figure 3 is a flow chart of a control method of a variable temperature zone gas oven according to an exemplary embodiment of the present invention. Figure 3 , control methods include:

[0072] Step S11, obtaining the real-time temperature of the heating area through the temperature probe; the heating area includes the upper heating area, the left heating area and the right heating area;

[0073] Step S12, obtaining the heating time of the heating area according to the real-time temperature and the preset change temperature; the heating time includes the heating time, the left heating time and the right heating time;

[0074] Step S13, obtaining an adjustment ratio according to the heating time; the adjustment ratio includes a standard ratio, a high speed ratio and a low speed ratio;

[0075] Step S14, adjusting the heating power of the burner according to the preset heating mode, the real-time temperature and the adjustment ratio so that the temperature of each heating area is maintained at the target temperature; the preset heating mode includes a constant temperature zone mode and a variable temperature zone mode; the burner includes a left burner and a right burner.

[0076] It should be noted that the control method provided in this embodiment is applicable to scenarios including, but not limited to, gas ovens in specific practice.

[0077] Specifically, the preset change temperature is generally 100 degrees, and the temperature can also be set according to specific business needs.

[0078] It can be understood that the control method provided in this embodiment obtains the real-time temperatures of the upper heating area, the left heating area and the right heating area through the temperature probe, obtains the heating time, the left heating time and the right heating time according to the real-time temperature and the preset change temperature, obtains the adjustment ratio according to the heating time, and adjusts the heating power of the left burner and the right burner according to the preset heating mode, the real-time temperature and the adjustment ratio, thereby accurately controlling the temperature of the left heating area and the right heating area, which can realize heating of different target temperatures for different foods placed in the left and right heating areas, and can also realize that the heating temperature of each heating area is maintained at a uniform target temperature, so that the heated food is heated more evenly.

[0079] In specific practice, step S12 "obtaining the heating time of the heating area based on the real-time temperature and the preset change temperature" includes: obtaining the initial temperature and the first time point of the temperature probe when the heating area starts to heat; when the difference between the real-time temperature and the initial temperature of the temperature probe is the preset change temperature, obtaining the second time point; and using the time between the second time point and the first time point as the heating time of the corresponding heating area.

[0080] It should be noted that the initial temperature can be that of each temperature probe alone as the initial temperature of the heating zone to which it belongs, or the average of the initial temperatures of the three temperature probes when heating begins can be used as the initial temperature of each heating zone.

[0081] Specifically, after heating begins, the temperature values ​​collected by the three temperature probes are recorded and saved as TL 初 ,TR 初 TU 初 ; Enter the preheating state, the left and right burners are ignited, and the left and right gas regulating valves are preset to power (PL 预设 , PR 预设 ) is adjusted to the maximum, the left and right burners burn at maximum power, the heating tube is powered on at maximum power, and the timer starts timing; at this time, the temperatures of the three temperature probes are continuously read. When the real-time temperatures of the three temperature probes are greater than TL 初 +100, TR 初+100, TU 初 When the temperature reaches +100 degrees, record the time of the timer at this time and save them in sequence as left heating time, right heating time, and heating time.

[0082] In specific practice, step S13 "obtaining an adjustment ratio according to the heating time" includes: when the left heating time is less than the right heating time, the calculation formula of the left standard ratio is: DL 左标准 =TL / TR; the left high speed ratio calculation formula is: DL 左高速 =(TL×0.5+TR×0.5) / TR; The calculation formula for the left low speed ratio is: DL 左低速 =(TL×1.5-TR×0.5) / TR; where DL 左标准 For the left standard ratio; DL 左高速 For left high speed ratio; DL 左低速 is the left low speed ratio; TR is the right heating time; TL is the left heating time.

[0083] When the right heating time is less than the left heating time, the calculation formula for the right standard ratio is: DR 右标准 =TR / TL; The calculation formula for the right high speed ratio is: DR 右高速 =(TR×0.5+TL×0.5) / TL; The calculation formula for the right low speed ratio is: DR 右低速 =(TR×1.5-TL×0.5) / TL; where, DL 右标准 Right standard ratio; DL 右高速 For the right high speed ratio; DL 右低速 is the right low speed ratio; TR is the right heating time; TL is the left heating time.

[0084] It should be noted that when the left heating time is shorter than the right heating time, it means that the left burner has a larger power, and the power of this burner needs to be reduced by adjusting the ratio to balance the temperatures on the left and right sides; similarly, when the right heating time is shorter than the left heating time, it means that the right burner has a larger power, and the power of this burner needs to be reduced by adjusting the ratio to balance the temperatures on the left and right sides.

[0085] In specific practice, step S14 "adjusting the heating power of the burner according to the preset heating mode, the real-time temperature and the adjustment ratio" includes: when the preset heating mode is the constant temperature zone mode, when the preset heating mode is the constant temperature zone mode and the left heating time is less than the right heating time; if the real-time temperature of the left heating area is greater than the real-time temperature of the right heating area, the heating power calculation formula of the left burner is: PL 左实际 =PL 预设 ×DL 左低速 ; If the real-time temperature of the left heating area is equal to the real-time temperature of the right heating area, the heating power calculation formula of the left burner is: PL左实际 =PL 预设 ×DL 左标准 ; If the real-time temperature of the left heating area is lower than that of the right heating area, the heating power calculation formula of the left burner is: PL 左实际 =PL 预设 ×DL 左高速 ; Among them, PL 左实际 is the real-time heating power of the left burner; PL 预设 The preset power of the left burner is obtained according to the set target temperature; DL 左低速 DL is the left low speed ratio; 左标准 For the left standard ratio; DL 左高速 It is the left high speed ratio.

[0086] When the preset heating mode is the constant temperature zone mode and the right heating time is shorter than the left heating time; if the real-time temperature of the right heating area is higher than the real-time temperature of the left heating area, the heating power calculation formula of the right burner is: PL 右实际 =PL 预设 ×DL 右低速 ; If the real-time temperature of the right heating area is equal to the real-time temperature of the left heating area, the heating power calculation formula of the right burner is: PL 右实际 =PL 预设 ×DL 右标准 ; If the real-time temperature of the right heating area is lower than the real-time temperature of the left heating area, the heating power calculation formula of the right burner is: PL 右实际 =PL 预设 ×DL 右高速 ; Among them, PL 右实际 is the real-time heating power of the right burner; PL 预设 The preset power of the right burner is obtained according to the set target temperature; DL 右低速 Right low speed ratio; DL 右标准 Right standard ratio; DL 右高速 It is the right high speed ratio.

[0087] It should be noted that the electric heating tube is turned off before adjusting the heating power of the burner, and the heating power is controlled by adjusting the electronically controlled gas regulating valves of the left burner and the right burner.

[0088] Specifically, the required preset power is obtained using a PID algorithm or other temperature control algorithm according to the set target temperature. Since it is in a constant temperature zone mode, a target temperature is set, and the preset powers of the left burner and the right burner are both the required preset powers.

[0089] It can be understood that the control method provided in this embodiment can achieve that the heating temperature of each heating area is maintained at a uniform target temperature by adjusting the ratio to perform precise temperature control on the left heating area and the right heating area, so that the heated food is heated more evenly.

[0090] In specific practice, when the left heating time is equal to the right heating time, the heating power of the left burner and the right burner is not adjusted.

[0091] In specific practice, the preset heating mode can be set as the variable temperature zone mode, and the left preset heating power of the left burner is obtained according to the preset left target temperature; heating is performed according to the left preset heating power and the real-time temperature of the left heating area is obtained; the heating power of the left burner is adjusted according to the difference between the real-time temperature of the left heating area and the left target temperature. The right preset heating power of the right burner is obtained according to the preset right target temperature; heating is performed according to the right preset heating power and the real-time temperature of the right heating area is obtained; the heating power of the right burner is adjusted according to the difference between the real-time temperature of the right heating area and the right target temperature.

[0092] Specifically, before adjusting the heating power of the left burner or the right burner, the electric heating tube is turned off.

[0093] It should be noted that the heating power of the left burner can be adjusted according to the difference between the real-time temperature of the left heating area and the left target temperature; and the heating power of the right burner can be adjusted according to the difference between the real-time temperature of the right heating area and the right target temperature, both of which can be adjusted using existing methods.

[0094] It can be understood that the control method provided in this embodiment can achieve the purpose of placing different foods to be heated in the left and right heating areas, thereby achieving simultaneous heating and effectively improving the heating efficiency.

[0095] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

[0096] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0097] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0098] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A gas oven with variable temperature zones, characterized in that: The gas oven comprises: An oven casing (1), an oven cavity (2) and a main control panel; An upper heating tube (3) is arranged on the top wall of the oven cavity (2), and the upper heating tube (3) is connected to a power regulating device; a left burner (4) is arranged at a bottom position on the left wall of the oven cavity (2); a right burner (5) is arranged at a bottom position on the right wall of the oven cavity (2); both the left burner (4) and the right burner (5) are provided with a pulse igniter and an electronically controlled gas regulating valve; an upper temperature probe (6) is arranged at an upper middle position on the rear wall of the oven cavity (2); a left temperature probe (7) is arranged at a lower left position on the rear wall of the oven cavity (2); and a right temperature probe (8) is arranged at a lower right position on the rear wall of the oven cavity (2); The power regulating device, the pulse igniter, the electronically controlled gas regulating valve, the upper temperature probe (6), the left temperature probe (7) and the right temperature probe (8) are electrically connected to the main control board respectively.

2. A control method for a variable temperature zone gas oven, characterized in that: Applied to the gas oven according to claim 1, the control method comprises: Acquire the real-time temperature of the heating area through the temperature probe; the heating area includes the upper heating area, the left heating area and the right heating area; The heating time of the heating area is obtained according to the real-time temperature and the preset change temperature; the heating time includes the heating time, the left heating time and the right heating time; An adjustment ratio is obtained according to the heating time; the adjustment ratio includes a standard ratio, a high speed ratio and a low speed ratio; The heating power of the burner is adjusted according to the preset heating mode, the real-time temperature and the adjustment ratio so that the temperature of each heating area is maintained at the target temperature; the preset heating mode includes a constant temperature zone mode and a variable temperature zone mode; the burner includes a left burner and a right burner.

3. The control method according to claim 2, characterized in that: The adjusting ratio is obtained according to the heating time, including: When the left heating time is shorter than the right heating time, The calculation formula of the left standard ratio is: DL 左标准 =TL / TR; The calculation formula of the left high speed ratio is: DL 左高速 =(TL×0.5+TR×0.5) / TR; The calculation formula of the left low speed ratio is: DL 左低速 =(TL×1.5-TR×0.5) / TR; Among them, DL 左标准 For the left standard ratio; DL 左高速 For left high speed ratio; DL 左低速 is the left low speed ratio; TR is the right heating time; TL is the left heating time.

4. The control method according to claim 3, characterized in that: The step of adjusting the heating power of the burner according to the preset heating mode, the real-time temperature and the adjustment ratio comprises: When the preset heating mode is the constant temperature zone mode and the left heating time is shorter than the right heating time; If the real-time temperature of the left heating area is greater than the real-time temperature of the right heating area, the heating power calculation formula of the left burner is: PL 左实际 =PL 预设 ×DL 左低速 ; If the real-time temperature of the left heating area is equal to the real-time temperature of the right heating area, the heating power calculation formula of the left burner is: PL 左实际 =PL 预设 ×DL 左标准 ; If the real-time temperature of the left heating area is lower than that of the right heating area, the heating power calculation formula of the left burner is: PL 左实际 =PL 预设 ×DL 左高速 ; Among them, PL 左实际 is the real-time heating power of the left burner; PL 预设 The preset power of the left burner is obtained according to the set target temperature; DL 左低速 DL is the left low speed ratio; 左标准 For the left standard ratio; DL 左高速 It is the left high speed ratio.

5. The control method according to claim 2, characterized in that: The adjusting ratio is obtained according to the heating time, including: When the right heating time is shorter than the left heating time, The calculation formula of the right standard ratio is: DR 右标准 =TR / TL; The calculation formula of the right high speed ratio is: <h2 style=";text-align:left;direction:ltr">DR<h2 style=";text-align:left;direction:ltr"> 右高速 <h2 style=";text-align:left;direction:ltr"> (TR×0.5+TL×0.5) / TL The calculation formula of the right low speed ratio is: <h2 style=";text-align:left;direction:ltr">DR<h2 style=";text-align:left;direction:ltr"> 右低速 <h2 style=";text-align:left;direction:ltr"> (TR×1.5-TL×0.5) / TL) Among them, DL 右标准 For the right standard ratio; DL 右高速 For the right high speed ratio; DL 右低速 is the right low speed ratio; TR is the right heating time; TL is the left heating time.

6. The control method according to claim 5, characterized in that: The step of adjusting the heating power of the burner according to the preset heating mode, the real-time temperature and the adjustment ratio comprises: When the preset heating mode is the constant temperature zone mode and the right heating time is shorter than the left heating time; If the real-time temperature of the right heating area is greater than the real-time temperature of the left heating area, the heating power calculation formula of the right burner is: PL 右实际 =PL 预设 ×DL 右低速 ; If the real-time temperature of the right heating area is equal to the real-time temperature of the left heating area, the heating power calculation formula of the right burner is: PL 右实际 =PL 预设 ×DL 右标准 ; If the real-time temperature of the right heating area is lower than that of the left heating area, the heating power calculation formula of the right burner is: PL 右实际 =PL 预设 ×DL 右高速 ; Among them, PL 右实际 is the real-time heating power of the right burner; PL 预设 The preset power of the right burner is obtained according to the set target temperature; DL 右低速 Right low speed ratio; DL 右标准 For the right standard ratio; DL 右高速 It is the right high speed ratio.

7. The control method according to claim 2, characterized in that: The step of obtaining the heating time of the heating area according to the real-time temperature and the preset change temperature includes: Acquire the initial temperature and the first time point of the temperature probe when the heating area starts to heat; When the difference between the real-time temperature of the temperature probe and the initial temperature is the preset change temperature, obtaining a second time point; The duration between the second time point and the first time point is used as the heating duration of the corresponding heating area.

8. The control method according to claim 1, characterized in that: The method further comprises: When the preset heating mode is the variable temperature zone mode, the left preset heating power of the left burner is obtained according to the preset left target temperature; Heating is performed according to the left preset heating power and the real-time temperature of the left heating area is obtained; The heating power of the left burner is adjusted according to the difference between the real-time temperature of the left heating area and the left target temperature.

9. The control method according to claim 1, characterized in that: The method further comprises: When the preset heating mode is the variable temperature zone mode, the right preset heating power of the right burner is obtained according to the preset right target temperature; Heating is performed according to the right preset heating power and the real-time temperature of the right heating area is obtained; The heating power of the right burner is adjusted according to the difference between the real-time temperature of the right heating area and the right target temperature.

10. The control method according to claim 1, characterized in that: The method further comprises: When the left heating time is equal to the right heating time, the heating power of the left burner and the right burner is not adjusted.