Control method and control device of cooking utensil and cooking utensil

Abstract

The invention relates to the technical field of kitchen appliances, and provides a control method and device of a cooking utensil and the cooking utensil, and the control method of the cooking utensil comprises the steps: obtaining user taste feedback information under the condition that the cooking utensil completes cooking; correcting a preset rice-water ratio of the cooking utensil according to the user taste feedback information; according to the corrected preset rice-water ratio, the water adding amount of a hot water / steam generating device of the cooking utensil during next cooking is controlled. The rice-water ratio of the cooking utensil can be corrected and adjusted according to the feedback of the user after cooking is completed every time, the rice-water ratio suitable for the habits of the user is obtained and memorized, and therefore rice most conforming to the taste of the user is cooked, and the use experience of the user is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and in particular to a control method and a control device for a cooking appliance, and a cooking appliance. Background Art

[0002] At present, when cooking utensils such as rice cookers cook rice, the rice-to-water ratio of the rice cooker is fixed, which makes it difficult for users to adjust it according to their own taste. The cooked rice cannot meet the user's optimal taste requirements, and the user experience is poor. Summary of the invention

[0003] The present invention provides a control method, a control device and a cooking appliance for a cooking utensil, which can correct and adjust the rice-to-water ratio of the cooking utensil according to user feedback after each cooking is completed, obtain the rice-to-water ratio suitable for the user's habits and store it in memory, so as to cook rice that best suits the user's taste and effectively improve the user experience.

[0004] The present invention provides a cooking appliance control method, comprising:

[0005] When the cooking appliance completes cooking, obtaining user taste feedback information;

[0006] According to user taste feedback, the preset rice-water ratio of the cooking appliance is modified;

[0007] According to the corrected preset rice-water ratio, the amount of water added to the hot water / steam generating device of the cooking appliance during the next cooking is controlled.

[0008] According to a cooking appliance control method provided by the present invention, the step of correcting a preset rice-water ratio of the cooking appliance according to user taste feedback information specifically includes:

[0009] Determining the user taste feedback information as first taste information, and maintaining the preset rice-to-water ratio unchanged to achieve a target rice-to-water ratio;

[0010] Determining the user taste feedback information as second taste information, and increasing the water ratio of the preset rice-to-water ratio to achieve a target rice-to-water ratio;

[0011] Determining the user taste feedback information as third taste information, and reducing the water ratio of the preset rice-to-water ratio to achieve a target rice-to-water ratio;

[0012] The rice hardness of the second taste information is greater than the rice hardness of the first taste information, and the rice hardness of the third taste information is less than the rice hardness of the first taste information.

[0013] According to a cooking appliance control method provided by the present invention, the step of controlling the amount of water added to a hot water / steam generating device of the cooking appliance during the next cooking according to the corrected preset rice-water ratio specifically comprises:

[0014] Determine that the target rice-to-water ratio obtained after correction is equal to the preset rice-to-water ratio before correction, and control the amount of water added to the hot water / steam generating device to remain unchanged during the next cooking;

[0015] Determining that the target rice-to-water ratio obtained after correction is less than the preset rice-to-water ratio before correction, and controlling the hot water / steam generating device to increase the amount of water added during the next cooking;

[0016] It is determined that the target rice-to-water ratio obtained after correction is greater than the preset rice-to-water ratio before correction, and the hot water / steam generating device is controlled to reduce the amount of water added during the next cooking.

[0017] A cooking appliance control method according to the present invention further includes:

[0018] Obtain the weight of rice before cooking in the cooking appliance;

[0019] determining that the rice weight reaches a preset rice weight, and controlling the hot water / steam generating device to spray hot water and / or steam into the cooking utensil according to a preset rice-water ratio corresponding to the rice weight to perform cooking;

[0020] It is determined that the rice weight does not reach the preset rice weight, and the cooking appliance is controlled to sound an alarm.

[0021] The present invention also provides a control device for a cooking appliance, comprising:

[0022] An acquisition module, used for acquiring user taste feedback information when the cooking appliance completes cooking;

[0023] A correction module, used for correcting a preset rice-water ratio of the cooking appliance according to user taste feedback information;

[0024] The control module is used to control the amount of water added to the hot water / steam generating device of the cooking appliance during the next cooking according to the corrected preset rice-water ratio.

[0025] The present invention also provides a cooking utensil, comprising:

[0026] Cooking subject;

[0027] A hot water / steam generating device, arranged on the cooking body;

[0028] The controller is connected to the cooking body and the hot water / steam generating device respectively, and is used to obtain user taste feedback information when the cooking body completes cooking; according to the user taste feedback information, the preset rice-water ratio of the cooking body is corrected; according to the corrected preset rice-water ratio, the amount of water added to the hot water / steam generating device during the next cooking.

[0029] According to a cooking utensil provided by the present invention, a hot water spray head and a steam spray head are arranged on the top of the cooking body, and the steam spray head is located at the center of the cooking body, and the hot water spray head and the steam spray head are arranged at intervals;

[0030] The hot water / steam generating device is connected to the hot water spray head and the steam spray head respectively.

[0031] According to a cooking appliance provided by the present invention, the hot water / steam generating device comprises: a water tank, a pumping device, a pressure relief valve and a heating device connected in sequence, and the pressure relief valve is connected to the water tank via a pressure relief pipeline, and the heating device is respectively connected to the hot water nozzle and the steam nozzle.

[0032] According to a cooking utensil provided by the present invention, a water inlet and a water outlet are provided at both ends of the hot water spray head, and the water inlet is connected to the heating device, and the water outlet is arranged on the side wall of the hot water spray head.

[0033] According to a cooking utensil provided by the present invention, the inner end cross-sectional area of ​​the water outlet is smaller than the outer end cross-sectional area.

[0034] According to a cooking appliance provided by the present invention, the steam spray head comprises:

[0035] The seat body is provided with a steam inlet, and the steam inlet is connected to the heating device;

[0036] A nozzle, disposed on the seat and provided with a steam flow channel;

[0037] The valve core is movably disposed between the steam inlet and the steam flow channel and is suitable for switching between a first position and a second position.

[0038] In the first position, the valve core disconnects the flow path between the steam inlet and the steam flow channel.

[0039] In the second position, the valve core opens the flow path between the steam inlet and the steam flow channel.

[0040] According to a cooking appliance provided by the present invention, the steam spray head further comprises:

[0041] An elastic member is arranged in the steam flow channel, a first end of the elastic member is connected to the valve core, and a second end of the elastic member is connected to the nozzle.

[0042] According to a cooking appliance provided by the present invention, a steam outlet is provided at one end of the steam flow channel away from the steam inlet, and an inner end cross-sectional area of ​​the steam outlet is smaller than an outer end cross-sectional area.

[0043] The control method, control device and cooking appliance provided by the present invention obtain user taste feedback information when the cooking appliance completes cooking, and correct the preset rice-to-water ratio of the cooking appliance according to the user taste feedback information, so as to obtain the target rice-to-water ratio suitable for the user's habits and store it in memory, and according to the corrected preset rice-to-water ratio, that is, the target rice-to-water ratio, control the amount of water added to the hot water / steam generating device of the cooking appliance during the next cooking, so as to cook rice that best suits the user's taste, thereby effectively improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the present invention or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are 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.

[0045] Figure 1 It is one of the flow charts of the control method of the cooking appliance provided by the present invention;

[0046] Figure 2 This is the second flow chart of the control method of the cooking appliance provided by the present invention;

[0047] Figure 3 This is the third flow chart of the control method of the cooking appliance provided by the present invention;

[0048] Figure 4 This is a fourth flow chart of the control method of the cooking appliance provided by the present invention;

[0049] Figure 5 is a structural schematic diagram of a control device for a cooking appliance provided by the present invention;

[0050] Figure 6 is a schematic diagram of the structure of the cooking utensil provided by the present invention;

[0051] Figure 7 It is a structural schematic diagram of a pot body provided by the present invention;

[0052] Figure 8 It is a structural schematic diagram of a pot cover provided by the present invention;

[0053] Fig. 9 It is a structural schematic diagram of the hot water / steam generating device provided by the present invention;

[0054] Fig.10 It is a schematic diagram of the structure of the hot water spray head provided by the present invention;

[0055] Fig.11 It is a structural schematic diagram of the steam nozzle provided by the present invention.

[0056] Reference numerals:

[0057] 100: cooking body; 101: pot body; 102: pot cover; 103: inner pot;

[0058] 104: pressure sensor; 105: handle;

[0059] 106: hot water nozzle; 1061: water inlet; 1062: water outlet;

[0060] 107: steam nozzle; 1071: seat body; 10711: steam inlet;

[0061] 10712: installation cavity; 1072: nozzle; 10721: steam flow channel;

[0062] 10722: steam outlet; 10723: transition channel;

[0063] 1073: valve core; 10731: reducing section; 10732: constant diameter section; 10733: connecting section;

[0064] 1074: elastic member; 1075: sealing ring; 1076: retaining spring;

[0065] 108: lining; 109: first steam discharge hole; 110: temperature sensing probe;

[0066] 200: hot water / steam generating device; 201: water tank; 202: water pumping device;

[0067] 203: pressure relief valve; 204: heating device; 205: pressure relief pipeline; 206: first pipeline;

[0068] 207: second pipeline; 208: third pipeline; 209: three-way solenoid valve;

[0069] 210: flow sensor; 211: temperature controller;

[0070] 300: acquisition module; 400: correction module; 500: control module. DETAILED DESCRIPTION

[0071] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0072] In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", etc., are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0073] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0074] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0075] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0076] Combine the following Figure 1-Figure 11 A control method, a control device and a cooking appliance of the present invention are described.

[0077] According to an embodiment of the first aspect of the present invention, referring to Figure 1 As shown, the control method of the cooking appliance provided by the present invention mainly includes the following steps:

[0078] S100: When the cooking appliance completes cooking, obtain user taste feedback information.

[0079] Specifically, after each cooking is completed, the cooking appliance can be controlled to send a taste feedback instruction to the user-side APP, and the user can give feedback on the taste of the cooked rice after receiving the corresponding instruction; or, after each cooking is completed, the display panel of the cooking appliance can be controlled to display a taste selection interface and remind the user, and the user can select the corresponding taste of the cooked rice. Moreover, when the taste of the rice meets the user's needs, the feedback signal can be revised from being sent after each cooking to being sent once a week or at a longer interval.

[0080] S200: Correcting a preset rice-to-water ratio of a cooking utensil according to user taste feedback information.

[0081] Specifically, the preset rice-to-water ratio in the cooking appliance may be readjusted according to the taste information fed back by the user until a target rice-to-water ratio that satisfies the user's taste is reached.

[0082] S300: According to the corrected preset rice-water ratio, the amount of water added to the hot water / steam generating device 200 of the cooking appliance during the next cooking is controlled.

[0083] Specifically, the preset rice-to-water ratio is memorized and saved after correction. When cooking next time, the corrected rice-to-water ratio is directly retrieved, and the hot water / steam generating device 200 adds a matching amount of water into the cooking utensil according to the corrected rice-to-water ratio, i.e., the target rice-to-water ratio.

[0084] Since each user may have different tastes, the control method of the cooking appliance provided in the embodiment of the present invention can correct and adjust the rice-to-water ratio of the cooking appliance according to the taste feedback information of the user after each cooking. The rice-to-water ratio that best suits the user's habits can be obtained through single or multiple adjustments and stored in memory, so that the cooking appliance can cook rice that best suits the user's taste, effectively improving the user experience.

[0085] According to one embodiment of the present invention, referring to Figure 2 As shown, the steps of correcting the preset rice-water ratio of the cooking utensil according to the user's taste feedback information specifically include:

[0086] S201, determining that the user taste feedback information is the first taste information, and maintaining the preset rice-to-water ratio unchanged to achieve a target rice-to-water ratio;

[0087] S202, determining that the user's taste feedback information is the second taste information, and increasing the water ratio of the preset rice-to-water ratio to achieve a target rice-to-water ratio;

[0088] S203, determining that the user taste feedback information is the third taste information, and reducing the water ratio of the preset rice-to-water ratio to achieve the target rice-to-water ratio;

[0089] The rice hardness of the second taste information is greater than the rice hardness of the first taste information, and the rice hardness of the third taste information is less than the rice hardness of the first taste information.

[0090] Specifically, when the user's taste feedback information is the first taste information, it indicates that the user is satisfied with the hardness and taste of the rice, and the preset rice-water ratio is kept unchanged. At this time, the preset rice-water ratio is the target rice-water ratio that the user is accustomed to.

[0091] When the user's taste feedback information is the second taste information, it indicates that the user thinks the rice tastes hard. At this time, the water ratio in the preset rice-to-water ratio is small. The water ratio in the preset rice-to-water ratio can be increased to achieve the target rice-to-water ratio, thereby satisfying the user's taste requirements.

[0092] When the user's taste feedback information is the third taste information, it indicates that the user thinks the rice tastes soft. At this time, the water ratio in the preset rice-to-water ratio is relatively large. The water ratio in the preset rice-to-water ratio can be reduced to achieve the target rice-to-water ratio, thereby satisfying the user's taste requirements.

[0093] According to one embodiment of the present invention, referring to Figure 3 As shown, according to the corrected preset rice-water ratio, the step of controlling the amount of water added to the hot water / steam generating device 200 of the cooking appliance during the next cooking comprises:

[0094] S301, determining that the target rice-water ratio obtained after correction is equal to the preset rice-water ratio before correction, and controlling the amount of water added by the hot water / steam generating device 200 to remain unchanged during the next cooking;

[0095] S302, determining that the target rice-water ratio obtained after correction is less than the preset rice-water ratio before correction, and controlling the hot water / steam generating device 200 to increase the amount of water added during the next cooking;

[0096] S303: Determine that the target rice-to-water ratio after correction is greater than the preset rice-to-water ratio before correction, and control the hot water / steam generating device 200 to reduce the amount of water added during next cooking.

[0097] Specifically, when the target rice-water ratio after correction is equal to the preset rice-water ratio before correction, it means that the preset rice-water ratio remains unchanged. Accordingly, during the next cooking, the amount of water added to the hot water / steam generating device 200 is controlled to remain unchanged to meet the user's taste requirements.

[0098] When the target rice-to-water ratio after correction is less than the preset rice-to-water ratio before correction, it indicates that the water proportion of the preset rice-to-water ratio has been increased. Accordingly, the hot water / steam generating device 200 is controlled to increase the amount of water added during the next cooking to meet the user's taste requirements.

[0099] When the target rice-to-water ratio after correction is greater than the preset rice-to-water ratio before correction, it indicates that the water proportion of the preset rice-to-water ratio has been reduced. Accordingly, the hot water / steam generating device 200 is controlled to reduce the amount of water added during the next cooking to meet the user's taste requirements.

[0100] Therefore, the cooking appliance control method provided in the embodiment of the present invention can automatically correct the preset rice-water ratio of the cooking appliance according to different taste feedback information of the user, and obtain the target rice-water ratio suitable for the user's habits, so that the cooked rice can achieve the best taste for each user, effectively improving the user experience.

[0101] According to one embodiment of the present invention, referring to Figure 4 As shown, the control method of the cooking appliance of the present invention further comprises the steps of:

[0102] S001. Obtain the weight of rice before cooking with the cooking utensil;

[0103] S002, determining that the rice weight reaches a preset rice weight, and controlling the hot water / steam generating device 200 to spray hot water and / or steam into the cooking utensil according to a preset rice-water ratio corresponding to the rice weight to perform cooking;

[0104] S003: Determine that the rice weight does not reach the preset rice weight, and control the cooking appliance to sound an alarm.

[0105] Specifically, before the cooking appliance is used for cooking, obtain the weight M1 of the entire cooking appliance before adding rice and the weight M2 of the entire cooking appliance after adding rice, where the rice weight M=M2-M1; then determine whether the rice weight reaches the preset rice weight. If so, control the hot water / steam generating device 200 to spray hot water and / or steam into the cooking appliance for water-added cooking. If not, issue an alarm to improve safety.

[0106] For example: to judge M min ≤M≤M max If the rice quantity is satisfied, cooking will proceed. If not, a rice quantity alarm signal will be issued to remind the user. min is the minimum amount of rice for cooking, which is generally measured by experiments and can be 0≤M min ≤50g; M max The maximum amount of rice that can be cooked, usually determined by the capacity of the cooking utensil.

[0107] The control device of the cooking appliance provided by the present invention is described below. The control device of the cooking appliance described below and the control method of the cooking appliance described above can be referred to each other.

[0108] According to an embodiment of the second aspect of the present invention, referring to Figure 5 As shown, the present invention also provides a control device for a cooking appliance, which mainly includes: an acquisition module 300, a correction module 400 and a control module 500. The acquisition module 300 is used to obtain user taste feedback information when the cooking appliance completes cooking; the correction module 400 is used to correct the preset rice-water ratio of the cooking appliance according to the user taste feedback information; the control module 500 is used to control the amount of water added to the hot water / steam generating device 200 of the cooking appliance during the next cooking according to the corrected preset rice-water ratio.

[0109] The control device for the cooking appliance provided in the embodiment of the present invention can correct and adjust the rice-to-water ratio of the cooking appliance according to the taste feedback information after each cooking is completed by the user, and obtain the rice-to-water ratio that best suits the user's habits through single or multiple adjustments and store the ratio in memory, so that the cooking appliance can cook rice that best suits the user's taste, effectively improving the user experience.

[0110] According to an embodiment of the third aspect of the present invention, referring to Figure 6-Figure 11 As shown, the present invention also provides a cooking appliance, which mainly includes: a cooking body 100, a hot water / steam generating device 200 and a controller.

[0111] The cooking body 100 is mainly used for cooking food such as rice; the hot water / steam generating device 200 can be arranged outside or inside the cooking body 100, and is used for spraying hot water and / or steam into the cooking body 100 for adding water.

[0112] The controller is connected to the cooking body 100 and the hot water / steam generating device 200 respectively, and is used to obtain user taste feedback information when the cooking body 100 completes cooking; according to the user taste feedback information, the preset rice-water ratio of the cooking body 100 is corrected; according to the corrected preset rice-water ratio, the amount of water added by the hot water / steam generating device 200 during the next cooking. The specific control process can be referred to the aforementioned control method, which will not be described in detail here.

[0113] Therefore, the cooking utensil provided in the embodiment of the present invention can automatically correct the preset rice-water ratio of the cooking utensil according to the user's taste feedback information, cook rice that best suits the user's taste, and effectively improve the user experience.

[0114] According to one embodiment of the present invention, referring to Figure 6-Figure 8 As shown, the cooking body 100 mainly includes: a pot body 101, a pot cover 102 and an inner pot 103. The inner pot 103 is arranged inside the pot body 101 for holding rice; a heater is arranged at the bottom of the pot body 101 for heating the inner pot 103 for cooking; the pot cover 102 can be opened and closed on the pot body 101, and when the pot cover 102 is covered on the pot body 101, the pot cover 102 and the inner pot 103 form a cooking cavity for cooking rice.

[0115] Currently, when cooking rice, users mainly add water based on experience, and the rice-to-water ratio is difficult to control, resulting in a poor taste of the cooked rice.

[0116] To this end, a plurality of pressure sensors 104 are provided at the bottom of the pot body 101 of the embodiment of the present invention. The pressure sensors 104 are connected to the controller. The pressure sensors 104 are used to detect the weight of rice and send the rice weight information to the controller. The controller controls the hot water / steam generating device 200 to add water according to a preset rice-water ratio corresponding to the rice weight.

[0117] The pressure sensor 104 detects the weight M1 of the cooking appliance before adding rice and the weight M2 of the cooking appliance after adding rice, and the weight of rice M=M2-M1.

[0118] For example, four pressure sensors 104 are evenly arranged at the four corners of the bottom of the pot body 101, and the average value of the four detection values ​​is taken as the final rice weight detection value, which can effectively improve the accuracy of the detection data.

[0119] Therefore, the cooking utensil provided in the embodiment of the present invention can automatically detect the weight of rice and add a matching amount of water, accurately control the rice-water ratio, and thus improve the taste of rice.

[0120] According to an embodiment of the present invention, a rotatable handle 105 is provided on the pot body 101 to facilitate users to take and place cooking utensils.

[0121] At present, cooking utensils generally add cold water when cooking rice and other foods. The cold water needs to be heated before the rice can enter the water absorption and gelatinization stage. This easily leads to a longer cooking time and lower efficiency.

[0122] To this end, a hot water nozzle 106 and a steam nozzle 107 are provided at the top of the cooking body 100 of the embodiment of the present invention, and the steam nozzle 107 is located at the center of the cooking body 100, and steam can be sprayed into the cooking body 100 through the steam nozzle 107; the hot water nozzle 106 and the steam nozzle 107 are arranged at intervals, and hot water can be sprayed into the cooking body 100 through the hot water nozzle 106; the hot water / steam generating device 200 is respectively connected to the hot water nozzle 106 and the steam nozzle 107, and is used to provide hot water to the hot water nozzle 106 and steam to the steam nozzle 107.

[0123] The cooking utensil provided in the embodiment of the present invention can automatically heat water through the hot water nozzle 106 at the beginning of cooking, so that the rice directly enters the water absorption and gelatinization stage, shortening the cooking time; and during the cooking process, steam can be automatically added through the steam nozzle 107 to further shorten the cooking time, thereby improving the cooking experience.

[0124] In a specific example, if Figure 8 As shown, a lining 108 is provided on the inner side of the pot cover 102, and a receiving cavity is provided between the lining 108 and the pot cover 102, and a hot water / steam generating device 200 can be arranged in the receiving cavity, and a steam nozzle 107 is arranged at the center of the lining 108, so that the spray sprayed by the steam nozzle 107 can be evenly diffused to improve the cooking taste; the hot water nozzle 106 is arranged away from the center of the lining 108, that is, it is arranged close to a side wall of the inner pot 103.

[0125] According to one embodiment of the present invention, a first steam exhaust hole 109 is provided on the inner lining 108 of the pot cover 102, a steam flow path is provided in the accommodating cavity of the pot cover 102, and a second steam exhaust hole is provided on the outer side of the pot cover 102. The first steam exhaust hole 109 is connected to the second steam exhaust hole via the steam flow path for exhausting steam to maintain a stable pressure inside the cooking cavity.

[0126] In addition, a temperature sensing probe 110 is provided on the inner lining 108 of the pot cover 102. The temperature sensing probe 110 is connected to the controller and is used to detect the temperature inside the cooking utensil, so as to judge the cooking process.

[0127] According to one embodiment of the present invention, referring to Fig. 9 As shown, the hot water / steam generating device 200 includes: a water tank 201, a pumping device 202, a pressure relief valve 203 and a heating device 204 which are connected in sequence, and the pressure relief valve 203 is connected to the water tank 201 via a pressure relief pipeline 205, and the heating device 204 is connected to the hot water nozzle 106 and the steam nozzle 107 respectively.

[0128] Specifically, the water tank 201 is connected to the pumping device 202 through the first pipeline 206, the pumping device 202 is connected to the heating device 204 through the second pipeline 207, the pressure relief valve 203 is arranged in the second pipeline 207, and the pressure relief valve 203 is connected to the water tank 201 via the pressure relief pipeline 205, the heating device 204 is connected to the first valve port of the three-way solenoid valve 209 through the third pipeline 208, the second valve port of the three-way solenoid valve 209 is connected to the hot water nozzle 106, the third valve port of the three-way solenoid valve 209 is connected to the steam nozzle 107, and the pumping device 202, the heating device 204 and the three-way solenoid valve 209 and other components are respectively connected to the controller.

[0129] When the hot water / steam generating device 200 is working, the water in the water tank 201 is pumped out through the pumping device 202 and sent to the heating device 204 for heating. According to the cooking needs, hot water or steam is generated, and then sent to the hot water nozzle 106 or the steam nozzle 107 for spraying through the three-way solenoid valve 209. Among them, the pressure relief valve 203 can play a role in waterway protection. When the water pressure is too high, the pressure relief valve 203 is opened, and part of the water can flow back to the water tank 201 from the pressure relief pipeline 205. On the one hand, it can protect the safety of the waterway, and on the other hand, it can save water and avoid external pollution.

[0130] In addition, a flow sensor 210 is provided in the first pipeline 206 . The flow sensor 210 is connected to the controller. The water volume is detected by the flow sensor 210 , and the water volume information is sent to the controller, thereby controlling the amount of water added.

[0131] In addition, the heating device 204 is provided with a temperature controller 211, which is connected to the controller and is used to control the heating temperature.

[0132] Therefore, the hot water / steam generating device 200 provided in the embodiment of the present invention is an integrated structure, which is compact and easy to install, and can realize both hot water and steam functions, and has the characteristics of simple structure, low cost, high reliability, etc.

[0133] According to one embodiment of the present invention, referring to Fig.10 As shown, the present invention also provides a hot water nozzle 106, and a water inlet 1061 and a water outlet 1062 are respectively provided at the upper and lower ends of the hot water nozzle 106, and the water inlet 1061 is connected to the heating device 204 via a three-way solenoid valve 209 and a third pipeline 208, and the water outlet 1062 is arranged on the side wall of the hot water nozzle 106.

[0134] Since the hot water nozzle 106 is set offset from the center of the inner pot 103, and the water outlet 1062 of the hot water nozzle 106 is of side design, that is, facing the near wall of the inner pot 103, with this design, when the hot water nozzle 106 sprays hot water, the water flow sprayed from the water outlet 1062 can effectively impact the wall of the inner pot 103 at a close distance, and then flow down along the wall of the inner pot 103, thereby avoiding the water flow directly impacting the rice below and causing splashing, making the rice uneven, heating unevenly, and having a poor cooking taste.

[0135] According to one embodiment of the present invention, the inner end cross-sectional area of ​​the water outlet 1062 of the hot water nozzle 106 is smaller than the outer end cross-sectional area, and the water outlet 1062 is gradually expanded along the water outlet direction, so that the hot water is sprayed out in a fan-shaped form, which can reduce the impact force, avoid splashing on the one hand, and reduce noise on the other hand, thereby effectively improving the user experience.

[0136] According to one embodiment of the present invention, the water outlet 1062 of the hot water nozzle 106 is in the shape of an arc, and the arc angle can range from 5° to 180°, which can reduce the impact force of the sprayed water flow and make the water flow down along the wall of the inner pot 103, thereby ensuring that the rice is flat and heated evenly, and improving the cooking taste.

[0137] According to one embodiment of the present invention, the lower side wall of the hot water nozzle 106 can be evenly distributed with multiple water outlets 1062. Such a design can improve the water adding efficiency, thereby shortening the cooking time and improving the cooking efficiency.

[0138] According to one embodiment of the present invention, referring to Fig.11 As shown, the present invention further provides a steam spray head 107 , which mainly includes a seat body 1071 , a nozzle 1072 and a valve core 1073 .

[0139] Among them, the seat body 1071 is provided with a steam inlet 10711, and the steam inlet 10711 is connected to the heating device 204 via a three-way solenoid valve 209 and a third pipeline 208; the nozzle 1072 is arranged on the seat body 1071, and the nozzle 1072 is provided with a steam flow channel 10721; the valve core 1073 is movably arranged between the steam inlet 10711 and the steam flow channel 10721, and the valve core 1073 is suitable for switching between a first position and a second position. When the valve core 1073 moves to the first position, the valve core 1073 disconnects the flow path between the steam inlet 10711 and the steam flow channel 10721 and stops spraying. When the valve core 1073 moves to the second position, the valve core 1073 connects the flow path between the steam inlet 10711 and the steam flow channel 10721 to spray.

[0140] According to an embodiment of the present invention, the steam spray head 107 further includes an elastic member 1074, which is disposed in the steam flow channel 10721, and a first end of the elastic member 1074 is connected to the valve core 1073, and a second end of the elastic member 1074 is connected to the nozzle 1072. The elastic member 1074 may be a spring.

[0141] Only when the steam pressure at the steam inlet 10711 entering the steam nozzle 107 reaches a certain pressure, the valve core 1073 moves downward, squeezes the elastic member 1074, and opens the flow path. This design can ensure the atomization effect, improve the uniformity of steam injection, and thus improve the cooking taste.

[0142] According to one embodiment of the present invention, a steam outlet 10722 is provided at one end of the steam flow channel 10721 away from the steam inlet 10711, and the inner end cross-sectional area of ​​the steam outlet 10722 is smaller than the outer end cross-sectional area, which can improve the steam diffusion and increase the contact area between the steam and the rice, thereby improving the cooking taste. For example, the steam outlet 10722 of the steam nozzle 107 can be conical, and the specific taper can be designed according to actual needs.

[0143] The steam spray head 107 provided by the present invention is described below with reference to a specific example. Fig.11 As shown, the steam spray head 107 mainly includes: a seat body 1071 , a nozzle 1072 and a valve core 1073 .

[0144] Among them, the upper and lower ends of the seat body 1071 are respectively provided with a steam inlet 10711 and an installation cavity 10712, part of the main body of the nozzle 1072 is threadedly connected in the installation cavity 10712, and a sealing ring 1075 is provided between the outer wall of the part of the main body of the nozzle 1072 and the inner wall of the installation cavity 10712 to improve the sealing performance.

[0145] The nozzle 1072 is provided with a steam flow channel 10721, a transition flow channel 10723 and a steam outlet 10722 in sequence. The cross-sectional area of ​​the steam flow channel 10721 is larger than the cross-sectional area of ​​the transition flow channel 10723. On the one hand, the injection pressure can be increased, thereby improving the atomization effect. On the other hand, an installation step can be formed in the nozzle 1072, and a retaining spring 1076 is installed on the installation step. The upper end of the spring is connected to the valve core 1073, and the lower end of the spring is connected to the retaining spring 1076 to realize the assembly of the spring.

[0146] The valve core 1073 may be a sealing gasket, and the valve core 1073 includes: a variable diameter section 10731, a constant diameter section 10732 and a connecting section 10733, wherein the variable diameter section 10731 gradually expands along the air intake direction, the constant diameter section 10732 is located at the bottom of the variable diameter section 10731 and can move up and down in the steam flow channel 10721 of the nozzle 1072, and a connecting section 10733 is provided at the bottom of the constant diameter section 10732, and the connecting section 10733 is connected to the upper end of the spring; and the seat body 1071 is provided with an inclined inner wall matched with the variable diameter section 10731, and a flow gap is provided between the steam flow channel 10721 of the nozzle 1072 and the constant diameter section 10732. Among them, the variable diameter section 10731 may be truncated cone-shaped.

[0147] The working principle of the steam spray head 107 of the embodiment of the present invention generally includes:

[0148] When the valve core 1073 is in the first position (initial position), the spring is in a compressed state, so that the reducing section 10731 of the valve core 1073 is in close contact with the inclined inner wall of the seat body 1071 to seal and disconnect the flow path; when the incoming steam pressure reaches a certain pressure, the spring continues to be compressed and moves to the second position. Under the action of pressure, the reducing section 10731 of the valve core 1073 is separated from the inclined inner wall of the seat body, and the steam is ejected through the flow gap, steam flow channel 10721, transition flow channel 10723 and steam outlet 10722.

[0149] Therefore, the steam nozzle 107 provided in the embodiment of the present invention can prevent the low-pressure steam from flowing out, ensure the steam atomization effect, and thus improve the cooking taste.

[0150] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cooking appliance control method, characterized in that: include: When the cooking appliance completes cooking, obtaining user taste feedback information; According to user taste feedback, the preset rice-water ratio of the cooking appliance is modified; According to the corrected preset rice-water ratio, the amount of water added to the hot water / steam generating device of the cooking appliance during the next cooking is controlled.

2. The cooking appliance control method according to claim 1, characterized in that: The step of modifying a preset rice-water ratio of a cooking appliance according to user taste feedback information specifically comprises: Determining the user taste feedback information as first taste information, and maintaining the preset rice-to-water ratio unchanged to achieve a target rice-to-water ratio; Determining the user taste feedback information as second taste information, and increasing the water ratio of the preset rice-to-water ratio to achieve a target rice-to-water ratio; Determining the user taste feedback information as third taste information, and reducing the water ratio of the preset rice-to-water ratio to achieve a target rice-to-water ratio; The rice hardness of the second taste information is greater than the rice hardness of the first taste information, and the rice hardness of the third taste information is less than the rice hardness of the first taste information.

3. The cooking appliance control method according to claim 2, characterized in that: The step of controlling the amount of water added to the hot water / steam generating device of the cooking appliance during the next cooking according to the corrected preset rice-water ratio specifically comprises: Determine that the target rice-to-water ratio obtained after correction is equal to the preset rice-to-water ratio before correction, and control the amount of water added to the hot water / steam generating device to remain unchanged during the next cooking; Determining that the target rice-to-water ratio obtained after correction is less than the preset rice-to-water ratio before correction, and controlling the hot water / steam generating device to increase the amount of water added during the next cooking; It is determined that the target rice-to-water ratio obtained after correction is greater than the preset rice-to-water ratio before correction, and the hot water / steam generating device is controlled to reduce the amount of water added during the next cooking.

4. The cooking appliance control method according to any one of claims 1 to 3, characterized in that: Also includes: Obtain the weight of rice before cooking in the cooking appliance; determining that the rice weight reaches a preset rice weight, and controlling the hot water / steam generating device to spray hot water and / or steam into the cooking utensil according to a preset rice-water ratio corresponding to the rice weight to perform cooking; It is determined that the rice weight does not reach the preset rice weight, and the cooking appliance is controlled to sound an alarm.

5. A control device for a cooking appliance, characterized in that: include: An acquisition module, used for acquiring user taste feedback information when the cooking appliance completes cooking; A correction module, used for correcting a preset rice-water ratio of the cooking appliance according to user taste feedback information; The control module is used to control the amount of water added to the hot water / steam generating device of the cooking appliance during the next cooking according to the corrected preset rice-water ratio.

6. A cooking utensil, characterized in that: include: Cooking subject; A hot water / steam generating device, arranged on the cooking body; The controller is connected to the cooking body and the hot water / steam generating device respectively, and is used to obtain user taste feedback information when the cooking body completes cooking; according to the user taste feedback information, the preset rice-water ratio of the cooking body is corrected; according to the corrected preset rice-water ratio, the amount of water added to the hot water / steam generating device during the next cooking.

7. The cooking device according to claim 6, characterized in that: A hot water spray head and a steam spray head are arranged on the top of the cooking body, and the steam spray head is located at the center of the cooking body, and the hot water spray head and the steam spray head are arranged at intervals; The hot water / steam generating device is connected to the hot water spray head and the steam spray head respectively.

8. The cooking device according to claim 7, characterized in that: The hot water / steam generating device comprises: a water tank, a pumping device, a pressure relief valve and a heating device which are connected in sequence, and the pressure relief valve is connected to the water tank via a pressure relief pipeline, and the heating device is connected to the hot water nozzle and the steam nozzle respectively.

9. The cooking device according to claim 8, characterized in that: A water inlet and a water outlet are provided at both ends of the hot water spray head, and the water inlet is connected to the heating device, and the water outlet is arranged on the side wall of the hot water spray head.

10. The cooking appliance according to claim 9, characterized in that The inner end cross-sectional area of ​​the water outlet is smaller than the outer end cross-sectional area.

11. The cooking device according to claim 8, characterized in that: The steam spray head comprises: The seat body is provided with a steam inlet, and the steam inlet is connected to the heating device; A nozzle, disposed on the seat and provided with a steam flow channel; The valve core is movably disposed between the steam inlet and the steam flow channel and is suitable for switching between a first position and a second position. In the first position, the valve core disconnects the flow path between the steam inlet and the steam flow channel. In the second position, the valve core opens the flow path between the steam inlet and the steam flow channel.

12. The cooking device according to claim 11, characterized in that: The steam spray head also includes: An elastic member is arranged in the steam flow channel, a first end of the elastic member is connected to the valve core, and a second end of the elastic member is connected to the nozzle.

13. The cooking device according to claim 11, characterized in that: A steam outlet is provided at one end of the steam flow channel away from the steam inlet, and an inner end cross-sectional area of ​​the steam outlet is smaller than an outer end cross-sectional area.

Images