Liquid heating vessel and method, apparatus and storage medium for temperature control thereof

Abstract

The present disclosure provides a liquid heating container and a temperature control method, device and storage medium thereof, the liquid heating container comprising a containing cavity for containing liquid and a heating assembly for heating the liquid; the method comprising: detecting the current liquid temperature of at least two positions in the containing cavity in real time; determining the actual liquid temperature in the containing cavity according to the current liquid temperature of the at least two positions; and controlling the working state of the heating assembly according to the actual liquid temperature and a preset liquid temperature value. The present disclosure can detect the current liquid temperature of at least two positions in real time to determine the actual liquid temperature, thereby avoiding the problem of inaccurate liquid temperature measurement in the related art, improving the accuracy of liquid temperature data, and thus improving the temperature control precision.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of household appliances, and in particular to a liquid heating container and a temperature control method, device and storage medium thereof. BACKGROUND

[0002] A milk warmer is a household electric heating appliance for heating a cold-stored milk bottle. The milk warmer heats water through a heating assembly, and the milk bottle is placed in the water to be heated by using water as a heat transfer medium to achieve the purpose of warming milk. Specifically, the milk warmer is provided with a temperature probe at the bottom of the milk bottle for monitoring the current liquid temperature, and according to the current liquid temperature fed back by the temperature probe, the power of the electric heating assembly is controlled by the program to achieve the purpose of precise milk warming. In a conventional milk warmer, only one temperature probe is provided, and the relative positions of the milk bottle and the temperature probe are different, and the detected milk temperature is also different. In addition, the signal feedback of the temperature probe has a lag, and when the temperature probe feeds back that the liquid temperature reaches the user's preset temperature, the actual liquid temperature will be greater than the preset temperature. Therefore, the conventional milk warmer has the problem of low temperature control accuracy. SUMMARY

[0003] The present disclosure provides a liquid heating container and a temperature control method, device and storage medium thereof to at least solve the above technical problems existing in the prior art.

[0004] The technical solutions provided by the present disclosure are as follows:

[0005] According to a first aspect of the present disclosure, a temperature control method of a liquid heating container is provided, the liquid heating container comprising a containing cavity for containing liquid and a heating assembly for heating the liquid; the method comprising:

[0006] detecting the current liquid temperature at at least two positions in the containing cavity in real time;

[0007] determining the actual liquid temperature in the containing cavity according to the current liquid temperature at the at least two positions;

[0008] controlling the working state of the heating assembly according to the actual liquid temperature and a preset liquid temperature value.

[0009] In an implementable manner, the determining the actual liquid temperature in the containing cavity according to the current liquid temperature at the at least two positions specifically comprises:

[0010] calculating the temperature difference between the current liquid temperatures at the at least two positions;

[0011] comparing the temperature difference with a predetermined difference value to obtain a comparison result;

[0012] determining the highest liquid temperature of the current liquid temperatures of the at least two positions as the actual liquid temperature when the comparison result is that the temperature difference is greater than or equal to the predetermined difference value;

[0013] when the comparison result is that the temperature difference is less than the predetermined difference value, comparing whether a temperature rising rate of the current liquid temperature within a predetermined time period is greater than or equal to a preset temperature rising rate threshold value, determining an average value of the current liquid temperatures of the at least two positions as the actual liquid temperature when the temperature rising rate of the current liquid temperature within the predetermined time period is greater than or equal to the preset temperature rising rate threshold value, and determining a sum of the average value of the current liquid temperatures of the at least two positions and a preset compensation value as the actual liquid temperature when the temperature rising rate of the current liquid temperature within the predetermined time period is less than the preset temperature rising rate threshold value.

[0014] In an implementation, the controlling the working state of the heating assembly according to the actual liquid temperature and the preset liquid temperature value specifically comprises:

[0015] detecting the current liquid level in the accommodating cavity in real time;

[0016] comparing the current liquid level with a preset liquid level threshold value;

[0017] controlling the heating assembly to work according to a first control parameter according to the actual liquid temperature and the preset liquid temperature value when the current liquid level is greater than or equal to the preset liquid level threshold value;

[0018] controlling the heating assembly to work according to a second control parameter according to the actual liquid temperature and the preset liquid temperature value when the current liquid level is less than the preset liquid level threshold value;

[0019] wherein the first control parameter and the second control parameter both include at least one of heating power and heating time length, and the heating power in the first control parameter is less than the heating power in the second control parameter, and / or the heating time length in the first control parameter is less than the heating time length in the second control parameter.

[0020] According to a second aspect of the present disclosure, there is provided a temperature control device of a liquid heating container, the liquid heating container comprising an accommodating cavity for accommodating liquid and a heating assembly for heating the liquid; the temperature control device comprising:

[0021] at least two temperature detection modules for being arranged at at least two positions in the accommodating cavity at intervals to detect current liquid temperatures of the at least two positions in real time;

[0022] a heating assembly for being arranged in the accommodating cavity to heat water in the accommodating cavity; and

[0023] The control unit is connected with the at least two temperature detection modules and the heating assembly respectively, and is configured to determine an actual liquid temperature in the accommodating cavity according to current liquid temperatures of the at least two positions, and control a working state of the heating assembly according to the actual liquid temperature and a preset liquid temperature.

[0024] In an implementation, the control unit specifically comprises:

[0025] A first calculation module configured to calculate a temperature difference between the current liquid temperatures of the at least two positions;

[0026] A first comparison module configured to compare the temperature difference with a predetermined difference value to obtain a comparison result;

[0027] A first determination module configured to determine, in a case where the comparison result is that the temperature difference is greater than or equal to the predetermined difference value, a highest liquid temperature among the current liquid temperatures of the at least two positions as the actual liquid temperature;

[0028] A second comparison module configured to, in a case where the comparison result is that the temperature difference is less than the predetermined difference value, compare whether a temperature rise rate of the current liquid temperatures within a predetermined time period is greater than or equal to a preset temperature rise rate threshold value;

[0029] A second determination module configured to, in a case where the temperature rise rate of the current liquid temperatures within the predetermined time period is greater than or equal to the preset temperature rise rate threshold value, determine an average value of the current liquid temperatures of the at least two positions as the actual liquid temperature;

[0030] A third determination module configured to, in a case where the temperature rise rate of the current liquid temperatures within the predetermined time period is less than the preset temperature rise rate threshold value, determine a sum of the average value of the current liquid temperatures of the at least two positions and a preset compensation value as the actual liquid temperature.

[0031] In an implementation, the temperature control device further comprises a liquid level detector configured to be arranged on an inner side wall of the accommodating cavity and to detect a current liquid level in the accommodating cavity; and the control unit is specifically further configured to control the working state of the heating assembly according to the current liquid level.

[0032] In an implementation, the control unit specifically further comprises:

[0033] A third comparison module configured to compare the current liquid level with a preset liquid level threshold value;

[0034] The first control module is configured to control the heating assembly to work according to a first control parameter based on the actual liquid temperature and the preset liquid temperature value when the current liquid level is greater than or equal to the preset liquid level threshold.

[0035] The second control module is configured to control the heating assembly to work according to a second control parameter based on the actual liquid temperature and the preset liquid temperature value when the current liquid level is less than the preset liquid level threshold.

[0036] The first control parameter and the second control parameter each include at least one of a heating power and a heating time length, and the heating power in the first control parameter is less than the heating power in the second control parameter, and / or the heating time length in the first control parameter is less than the heating time length in the second control parameter.

[0037] In an embodiment, the heating assembly includes a heating disc, and the heating disc is located at the bottom of the accommodating cavity.

[0038] The at least two temperature detection modules are located at the bottom of the accommodating cavity, and the at least two temperature detection modules are arranged on opposite sides of the heating disc.

[0039] One of the at least two temperature detection modules is located at the bottom of the accommodating cavity, and the other is located on the side wall of the accommodating cavity, and the at least two temperature detection modules are arranged on opposite sides of the heating disc; or

[0040] One of the at least two temperature detection modules is located at the bottom of the accommodating cavity, and the other is located on the side wall of the accommodating cavity, and the at least two temperature detection modules are arranged on the same side of the heating disc; or

[0041] The at least two temperature detection modules are respectively located on opposite side walls of the accommodating cavity.

[0042] According to a third aspect of the present disclosure, there is provided a liquid heating container including the temperature control device as described above.

[0043] According to a fourth aspect of the present disclosure, there is provided a computer readable storage medium, which stores a computer program for executing the temperature control method of the liquid heating container as described above.

[0044] The present disclosure has the following technical effects:

[0045] The liquid heating container and the temperature control method, device and storage medium thereof can simultaneously and in real time detect the current liquid temperature of at least two positions in the accommodating cavity of the liquid heating container, determine the actual liquid temperature in the accommodating cavity according to the current liquid temperature of the at least two positions, and then control the working state of the heating assembly according to the actual liquid temperature and the preset liquid temperature value. In this way, compared with the prior art in which only one temperature sensing probe is arranged, the liquid heating container of the present disclosure can detect the current liquid temperature of at least two positions in real time to determine the actual liquid temperature, can avoid the problem of inaccurate temperature measurement caused by the fact that only one temperature sensing probe is arranged in the liquid heating container such as a milk warmer, and can improve the accuracy of liquid temperature data and the temperature control precision.

[0046] It should be understood that the content described in this part is not intended to identify key or important features of the embodiments of the present disclosure, nor is it used to limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0047] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will be more apparent from the following detailed description read in conjunction with the accompanying drawings, in which:

[0048] In the drawings, identical or corresponding reference numerals indicate identical or corresponding parts.

[0049] Figure 1 An implementation flowchart of a temperature control method of a liquid heating container according to an embodiment of the present disclosure is shown Figure 1 ;

[0050] Figure 2 An implementation flowchart of step S02 in the temperature control method of the liquid heating container according to an embodiment of the present disclosure is shown

[0051] Figure 3 An implementation flowchart of step S03 in the temperature control method of the liquid heating container according to an embodiment of the present disclosure is shown

[0052] Figure 4 A structural diagram of a temperature control device of a liquid heating container according to an embodiment of the present disclosure is shown

[0053] Figure 5 A structural diagram of a liquid heating container according to an embodiment of the present disclosure is shown

[0054] Figure 6 A structural diagram of a liquid heating container according to another embodiment of the present disclosure is shown

[0055] Figure 7 a structural schematic diagram of a liquid heating container of another embodiment of the present disclosure is shown;

[0056] Figure 8 a structural schematic diagram of a liquid heating container of another embodiment of the present disclosure is shown;

[0057] Figure 9 a structural schematic diagram of a liquid heating container of another embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0058] In order to make the purpose, features and advantages of the present disclosure more obvious and easy to understand, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present disclosure.

[0059] Before the liquid heating container and the temperature control method, device and storage medium thereof provided by the embodiments of the present disclosure are described in detail, it is necessary to make the following description of the related art:

[0060] In the related art, the liquid temperature control precision in the liquid heating container is not high, which leads to poor milk warming precision. Taking a milk warmer as an example, the present inventors have found that the main factors affecting the milk warming precision include the relative position of the temperature sensing probe and the milk bottle, and the liquid amount in the accommodation cavity. In the related art, the milk warmer is provided with only a single temperature sensing probe at the bottom of the accommodation cavity, and the contact of the milk bottle with the temperature sensing probe will cause the detected temperature to be lower than the actual liquid temperature, thereby affecting the milk warming precision. In addition, the signal feedback of the temperature sensing probe has a lag, and when the liquid temperature feedback by the temperature sensing probe reaches the user's preset temperature, the actual liquid temperature will be greater than the preset temperature. At the same time, the liquid amount in the accommodation cavity not only relates to the heating time of the electric heating assembly, but also affects the heat conduction contact area of the liquid and the milk bottle. The conventional milk warmer sets a standard liquid level line on the inner wall of the accommodation cavity, and the temperature control control program is set as a control parameter with the standard liquid level line as a test condition. Only when the liquid level in the accommodation cavity reaches the standard liquid level line, the warming precision can be guaranteed. When the liquid level deviates, the temperature control precision will be affected. In actual use, the user needs to pay attention to the water amount in the milk warmer at all times, which is inconvenient to operate.

[0061] Therefore, in order to solve the above problems, the present disclosure provides a temperature control method of a liquid heating container, a temperature control device, a liquid heating container and a storage medium, which can improve the temperature control precision of the liquid heating container.

[0062] The temperature control method of the liquid heating container of the present disclosure can be applied to a liquid heating container, including but not limited to a milk warmer.

[0063] As shown in the drawings, Figure 5 In some embodiments of the present disclosure, the liquid heating container can include a holding cavity A for holding liquid and placing a heating object (such as a milk bottle). In the case of a milk bottle, the holding cavity A can hold one or two milk bottles. It should be understood that in some embodiments not shown, the holding cavity A can hold more than two milk bottles.

[0064] At least two temperature detection modules 100 can be arranged at the bottom of the holding cavity A. The at least two temperature detection modules 100 can be distributed at different positions of the holding cavity A to detect the current liquid temperature at the at least two positions in real time. Figure 5 For example, the temperature detection module 100 can be any suitable temperature sensing device, such as an NTC temperature sensing probe. The NTC temperature sensing probe is a kind of thermistor probe.

[0065] A heating assembly 300 can also be arranged at the bottom of the holding cavity A. The heating assembly 300 can include any suitable heating device, such as a heating disc. The at least two temperature detection modules 100 can be arranged on opposite sides of the heating assembly 300. For example, Figure 5 For example, two NTC temperature sensing probes can be arranged on opposite sides of the heating disc 300. For example, Figure 5 For example, for a double bottle milk warmer that can hold two milk bottles, when the two milk bottles are placed in the holding cavity A, the bottoms of the two milk bottles can be pressed on the two NTC temperature sensing probes, respectively.

[0066] Figure 1 The flowchart of the temperature control method of the liquid heating container provided by the embodiments of the present disclosure is shown in the drawings.

[0067] As shown in the drawings, Figure 1 The temperature control method of the liquid heating container provided by the embodiments of the present disclosure includes the following steps:

[0068] Step S01, detecting the current liquid temperature at at least two positions in the holding cavity A in real time;

[0069] Step S02, determining the actual liquid temperature in the holding cavity A according to the current liquid temperature at the at least two positions;

[0070] Step S03, controlling the working state of the heating assembly according to the actual liquid temperature and a preset liquid temperature value.

[0071] The working state of the heating assembly can include at least one of heating power and heating duration.

[0072] The temperature control method of the liquid heating container can simultaneously detect the current liquid temperatures of at least two positions in the accommodation cavity A in real time, determine the actual liquid temperature in the accommodation cavity A according to the current liquid temperatures of the at least two positions, and then control the working state of the heating assembly according to the actual liquid temperature until the actual liquid temperature reaches a predetermined liquid temperature value.

[0073] The predetermined liquid temperature value can be a liquid temperature value set by a user, or a liquid temperature threshold value pre-stored in the control unit of the liquid heating container, etc.

[0074] Compared with the prior art in which only one temperature sensing probe is provided, the temperature control method of the liquid heating container can detect the current liquid temperatures of at least two positions in real time to determine the actual liquid temperature, thereby avoiding the problem of inaccurate temperature measurement caused by the fact that only one temperature sensing probe is provided in the liquid heating container such as a milk warmer, and improving the accuracy of liquid temperature data and the temperature control precision.

[0075] In an implementation manner, as shown in Figure 2 The step S02 specifically includes:

[0076] Step S021, calculating a temperature difference between the current liquid temperatures of the at least two positions.

[0077] Step S022, comparing the temperature difference with a predetermined difference value to obtain a comparison result.

[0078] Step S023, in a case where the comparison result is that the temperature difference is greater than or equal to the predetermined difference value, determining the highest liquid temperature among the current liquid temperatures of the at least two positions as the actual liquid temperature.

[0079] Step S024, in a case where the comparison result is that the temperature difference is less than the predetermined difference value, comparing whether a temperature rise rate of the current liquid temperature within a predetermined time period is greater than or equal to a preset temperature rise rate threshold value, and if yes, determining an average value of the current liquid temperatures of the at least two positions as the actual liquid temperature, and if no, determining a sum of the average value of the current liquid temperatures of the at least two positions and a preset compensation value as the actual liquid temperature.

[0080] Taking the liquid heating container as a milk warmer, the volume of the accommodation cavity A can accommodate two milk bottles, the temperature detection module is an NTC temperature sensing probe, and the number of NTC temperature sensing probes is two. The step S02 is further described in detail as follows:

[0081] When the two current liquid temperature values detected by the two NTC temperature probes are high and low, and the temperature difference between the two current liquid temperatures is greater than a predetermined difference value, it is determined that only one feeding bottle is placed in the accommodation cavity A. Since the measured liquid temperature is lower than the actual liquid temperature when the feeding bottle is in contact with the NTC temperature probe, if the liquid temperature difference measured by the two NTC temperature probes is large, it is determined that the feeding bottle is placed on the NTC temperature probe that detects the lower liquid temperature. The higher liquid temperature detected by the two NTC temperature probes can be used as the actual liquid temperature. The predetermined difference value can be set according to the temperature difference between the two cases of the feeding bottle pressing the NTC temperature probe and the feeding bottle not pressing the NTC temperature probe in actual testing. For example, the predetermined difference value can be 1°C. When one of the NTC temperature probes measures a liquid temperature of 32.7°C and the other NTC temperature probe measures a liquid temperature of 33.9°C, the liquid temperature difference between the two is greater than 1°C, and it is determined that the actual liquid temperature is 33.9°C.

[0082] When the temperature difference between the current liquid temperatures measured by the two NTC temperature probes is less than the predetermined difference value, and the temperature rise rate in a predetermined time period is greater than or equal to a preset temperature rise rate threshold, it is determined that there is only one feeding bottle in the accommodation cavity A, and the feeding bottle is placed between the two NTC temperature probes. At this time, the average of the current liquid temperatures measured by the two NTC temperature probes can be used as the actual liquid temperature. The preset temperature rise rate threshold can be experimental data of the temperature rise rate curve corresponding to different conditions such as different preset temperatures, different numbers of feeding bottles, and different positions of feeding bottles in the liquid heating container.

[0083] When the temperature difference between the current liquid temperatures measured by the two NTC temperature probes is less than the predetermined difference value, and the temperature rise rate in a predetermined time period is less than a preset temperature rise rate threshold, it is determined that there are two feeding bottles in the accommodation cavity A (the internal space of the accommodation cavity A is configured to place two feeding bottles that will press on the two NTC temperature probes). At this time, the liquid temperature can be automatically corrected, i.e., the actual liquid temperature is the sum of the average of the liquid temperatures measured by the two NTC temperature probes and a preset compensation value, thereby correcting the heating program and improving the accuracy of warming milk. For example, if a feeding bottle is placed on both of the two NTC temperature probes, the temperature rise rate will decrease significantly. Therefore, according to the measured current liquid temperature, it can be determined that a feeding bottle is placed on both of the two NTC temperature probes, and the actual liquid temperature is higher than the data measured by the NTC temperature probe. Therefore, the warming program can be adjusted by increasing the preset compensation value to prevent the liquid temperature from being too high.

[0084] It should be noted that the preset compensation value can be measured through multiple tests, for example, when the feeding bottle is placed on the NTC temperature sensing probe, the measured liquid temperature is about 1℃ lower than the actual liquid temperature, and then 1℃ can be set as the preset compensation value.

[0085] Of course, it can be understood that due to the different materials of the feeding bottle, the numerical value of the preset compensation value can be different, specifically, the preset compensation value can be obtained through multiple test measurements for different materials or different specifications of the feeding bottle, and is pre-stored in the control unit of the warmer.

[0086] The temperature control method of the liquid heating container provided by the embodiments of the present disclosure can avoid inaccurate temperature measurement caused by the feeding bottle pressing the temperature sensing probe, and can determine the number of heating objects in the liquid heating container and the position of the heating object according to the liquid temperature rising rate measured by different temperature sensing probes. For example, the method can be applied to single-bottle and double-bottle milk warmers, and solves the problem that the temperature sensing probe cannot measure the real liquid temperature when the milk warmer is placed in two feeding bottles, thereby causing inaccurate temperature control.

[0087] In addition, for the problem that in the prior art, only when the liquid level in the accommodation cavity A reaches the standard liquid level line, the warming accuracy can be guaranteed, and when the liquid level deviates, the temperature control accuracy will be affected, in an embodiment of the present disclosure, as shown in Figure 3 The step S03 specifically includes:

[0088] Step S031, detecting the current liquid level in the accommodation cavity in real time;

[0089] Step S032, comparing the current liquid level with a preset liquid level threshold;

[0090] Step S033, in the case that the current liquid level is greater than or equal to the preset liquid level threshold, according to the actual liquid temperature and the preset liquid temperature value, controlling the heating assembly to work according to a first control parameter, the first control parameter including at least one of heating power and heating time length;

[0091] Step S034, in the case that the current liquid level is less than the preset liquid level threshold, according to the actual liquid temperature and the preset liquid temperature value, controlling the heating assembly to work according to a second control parameter, the second control parameter including at least one of heating power and heating time length, and the heating power in the first control parameter is less than the heating power in the second control parameter, and / or the heating time length in the first control parameter is less than the heating time length in the second control parameter.

[0092] By the above scheme, the current liquid level in the accommodating cavity A is detected in real time, and the heating program is adjusted in real time according to the measured different liquid levels, so that accurate temperature control can be realized. In this way, the user does not need to observe the liquid level line every time when adding water, and the liquid heating container will not have inaccurate temperature control due to the user's water amount not being at the standard liquid level line, which is convenient to operate and improves the temperature control accuracy.

[0093] Specifically, taking the liquid heating container as a milk warmer as an example, after the liquid heating container is started, the current liquid level data is measured in real time. If the current liquid level is less than the preset liquid level threshold, it is judged that the current water amount is too small. If the temperature control is still performed by using the control parameter set according to the preset liquid level threshold, the contact area with the feeding bottle will be small due to the small water amount, which will cause the milk temperature in the feeding bottle to be lower than the expected milk temperature. Therefore, in the above scheme, when the current liquid level is less than the preset liquid level threshold, the heating assembly works according to the first control parameter, and the first control parameter includes at least one of heating power and heating time. Assuming that the control parameter corresponding to the case where the liquid level is at the preset liquid level threshold is the standard control parameter, any one of the heating power and the heating time in the first control parameter is greater than the corresponding one in the standard control parameter, that is, when the water amount is too small, the liquid heating container is adjusted to a small water mode, and the heating power and the heating time of the heating assembly are increased compared with the standard control parameter, so as to ensure the accuracy of the milk warming temperature.

[0094] On the contrary, if the current liquid level is greater than the preset liquid level threshold, that is, the water amount is too much, if the temperature control is still performed by using the standard control parameter set according to the preset liquid temperature threshold, the contact area with the feeding bottle will be large due to the large water amount, which will cause the milk temperature in the feeding bottle to be too high. Therefore, when the current liquid level is greater than the preset liquid level threshold, the heating assembly works according to the second control parameter, and the second control parameter includes at least one of heating power and heating time. Assuming that the control parameter corresponding to the case where the liquid level is at the preset liquid level threshold is the standard control parameter, any one of the heating power and the heating time in the second control parameter is less than the corresponding one in the standard control parameter, that is, when the water amount is too much, the liquid heating container is adjusted to a large water mode, and the heating power and the heating time of the heating assembly are reduced compared with the standard control parameter, so as to ensure the accuracy of the milk warming temperature.

[0095] By the above scheme, when the water amount is less than the program default standard water amount (i.e., the preset liquid level threshold), the heating time can be increased by the same percentage according to the percentage of the measured water amount to the standard water amount. For example, if the current water amount is 50 ml less than the standard water amount, the heating time of the corresponding mode is increased by 10%.

[0096] In addition, the temperature control device for the liquid heating container also has the corresponding technical effects brought by the temperature control method for the liquid heating container of the present disclosure, and the technical effect part will not be described hereinafter.

[0097] As shown in Figure 4 The temperature control device for the liquid heating container provided by the present disclosure includes:

[0098] at least two temperature detection modules 100, which are arranged at at least two positions in the accommodation cavity A to detect the current liquid temperature at the at least two positions in real time;

[0099] a heating assembly 200, which is arranged in the accommodation cavity A to heat the water in the accommodation cavity A; and

[0100] a control unit 300, which is connected with the at least two temperature detection modules 100 and the heating assembly 200 respectively, and is used to determine the actual liquid temperature in the accommodation cavity A according to the current liquid temperature at the at least two positions, and control the working state of the heating assembly 200 according to the actual liquid temperature and a preset liquid temperature, wherein the working state of the heating assembly 200 includes at least one of heating power and heating time.

[0101] The temperature control device for the liquid heating container of the present disclosure can simultaneously detect the current liquid temperature at at least two positions in the accommodation cavity A in real time by arranging at least two temperature detection modules 100 in the accommodation cavity A, can determine the actual liquid temperature in the accommodation cavity A according to the current liquid temperature at the at least two positions, and then control the working state of the heating assembly 200 according to the actual liquid temperature and the preset liquid temperature value. In this way, compared with the prior art of arranging only one temperature sensing probe, the present disclosure can detect the current liquid temperature at at least two positions to determine the actual liquid temperature, can avoid the problem of inaccurate temperature measurement caused by the condition that only one temperature sensing probe in the liquid heating container such as a milk warmer contacts the heated part in the liquid, can improve the accuracy of the liquid temperature data, and thus improve the temperature control precision.

[0102] In an implementable manner, as shown in Figure 4 The control unit 300 specifically includes:

[0103] a first calculation module 301, which is used to calculate the temperature difference between the current liquid temperatures at the at least two positions;

[0104] The first comparison module 302 is used to compare the temperature difference with a predetermined difference value to obtain a comparison result;

[0105] The first determining module 303 is used to determine the highest liquid temperature among the current liquid temperatures at the at least two locations as the actual liquid temperature when the comparison result is that the temperature difference is greater than or equal to a predetermined difference.

[0106] The second comparison module 304 is used to compare whether the temperature rise rate of the current liquid temperature within a predetermined time period is greater than or equal to a preset temperature rise rate threshold when the comparison result is that the temperature difference is less than the predetermined difference.

[0107] The second determining module 305 is used to determine the average value of the current liquid temperature at the at least two locations as the actual liquid temperature when the current liquid temperature rises at a rate greater than or equal to a preset temperature rise rate threshold within a predetermined time period.

[0108] The third determining module 306 is used to determine the sum of the average value of the current liquid temperature at the at least two locations and a preset compensation value as the actual liquid temperature when the rate of temperature rise of the current liquid temperature within a predetermined time period is less than a preset temperature rise rate threshold.

[0109] In one embodiment, the temperature control device further includes: a liquid level detector 400, which is disposed on the inner wall of the accommodating cavity A to detect the current liquid level in the accommodating cavity A; the control unit 300 is further configured to control the working state of the heating component 200 according to the current liquid level.

[0110] For example, the liquid level detector shown can be a non-contact water level sensor, which can be disposed on the side wall of the accommodating cavity and is evenly distributed at intervals along the axial direction of the accommodating cavity.

[0111] In one possible implementation, such as Figure 4 As shown, the control unit 300 specifically further includes:

[0112] The third comparison module 307 is used to compare the current liquid level with a preset liquid level threshold.

[0113] The first control module 308 is used to control the heating component 200 to operate according to the first control parameters when the current liquid level is greater than or equal to the preset liquid level threshold, based on the actual liquid temperature and the preset liquid temperature value.

[0114] The second control module 309 is used to control the heating component 200 to operate according to the second control parameters when the current liquid level is less than the preset liquid level threshold, based on the actual liquid temperature and the preset liquid temperature value.

[0115] The first control parameter and the second control parameter include at least one of heating power and heating time length, and the heating power in the first control parameter is less than the heating power in the second control parameter, and / or the heating time length in the first control parameter is less than the heating time length in the second control parameter.

[0116] In an implementation, the hardware of the control unit can be realized by a PCB board.

[0117] In an implementation, as shown in Figure 5 The heating assembly 200 includes a heating disc 300, and the at least two temperature detection modules 100 and the heating disc 300 are located at the bottom of the accommodating cavity A, and the at least two temperature detection modules 100 are arranged on opposite sides of the heating disc 300.

[0118] In an implementation, taking the NTC temperature sensing probe as an example, compared with the prior art of the liquid heating container provided with a single NTC temperature sensing probe, only one NTC temperature sensing probe mounting structure is arranged at the bottom of the accommodating cavity A, and one NTC temperature sensing probe mounting structure is arranged on opposite sides of the heating disc, which is simple in structure.

[0119] In another implementation, as shown in Figure 8 and Figure 9 One of the at least two temperature detection modules 100 is located at the bottom of the accommodating cavity A, and the other is located on the side wall of the accommodating cavity A, and the at least two temperature detection modules 100 are arranged on opposite sides of the heating disc 200.

[0120] In another implementation, as shown in Figure 6 One of the at least two temperature detection modules 100 is located at the bottom of the accommodating cavity A, and the other is located on the side wall of the accommodating cavity A, and the at least two temperature detection modules 100 are arranged on opposite sides of the heating disc 200.

[0121] In another implementation, as shown in Figure 7 The at least two temperature detection modules 100 are respectively located on opposite side walls of the accommodating cavity A.

[0122] In the above embodiments, the number of temperature detection modules 100 can be at least two, and the specific arrangement positions of the at least two temperature detection modules 100 can be both set at the bottom of the accommodating cavity A, or at least one set at the bottom of the accommodating cavity A and at least one set at the side wall of the accommodating cavity A. Considering that the heating plate 200 is located at the bottom of the accommodating cavity A, and the temperature of the accommodating cavity A varies at different axial positions, the implementation in which at least one of the at least two temperature detection modules 100 is set at the bottom of the accommodating cavity A and at least one set at the side wall of the accommodating cavity A can more accurately reflect the real-time water temperature in the accommodating cavity A compared to the implementation in which at least two temperature detection modules 100 are both set at the bottom of the accommodating cavity A.

[0123] In one embodiment, the temperature data fed back by at least two temperature detection modules 100 can be the average temperature of each temperature detection module 100 as the detection data, or the temperature values ​​fed back by each temperature detection module 100 can be calculated in a certain proportion according to the specific location distribution of at least two temperature detection modules 100 in actual application as the detection data, and there is no limitation on this.

[0124] Furthermore, this disclosure also provides a liquid heating container, which includes the temperature control device provided in this disclosure. This liquid heating container may include, but is not limited to, a bottle warmer.

[0125] like Figure 5 As shown, in one embodiment, the liquid heating container includes a accommodating cavity A, a heating assembly 300 and at least two temperature detection modules 100 are provided at the bottom of the accommodating cavity A, and a liquid level detector 400 is provided on the side wall of the accommodating cavity A.

[0126] Optionally, the temperature detection module 100 may include any suitable temperature sensing device such as an NTC temperature probe.

[0127] Optionally, the heating component 300 may be any suitable heating device, including a heating plate.

[0128] In one possible implementation, taking the temperature detection module 100 as an example of using an NTC temperature sensor, compared with the existing technology where only a single NTC temperature sensor is set in the liquid heating container, the improvement is that instead of setting only one NTC temperature sensor mounting structure at the bottom of the accommodating cavity A, one NTC temperature sensor mounting structure is set on each of the opposite sides of the heating plate, which is simpler.

[0129] In addition, the present disclosure also provides a computer readable storage medium, which stores a computer program for executing the temperature control method of the liquid heating container. Examples of the computer readable storage medium include read-only memory (ROM), random access programmable read-only memory (PROM), electrically erasable programmable read-only memory (EEPROM), random access memory (RAM), dynamic random access memory (DRAM), static random access memory (SRAM), flash memory, non-volatile memory, CD-ROM, CD-R, CD+R, CD-RW, CD+RW, DVD-ROM, DVD-R, DVD+R, DVD-RW, DVD+RW, DVD-RAM, BD-ROM, BD-R, BD-RLTH, BD-RE, Blu-ray or optical disc memory, hard disk drive (HDD), solid state drive (SSD), card memory (such as multimedia card, secure digital (SD) card or extreme digital (XD) card), magnetic tape, floppy disk, magneto-optical data storage device, optical data storage device, hard disk, solid state disk, and any other device configured to store a computer program and any associated data, data files and data structures in a non-transitory manner and provide the computer program and any associated data, data files and data structures to a processor or computer so that the processor or computer can execute the computer program.

[0130] The computer program in the above computer readable storage medium can be run in an environment deployed in a computer device such as a client, host, proxy device, server, etc., and in one example, the computer program and any associated data, data files and data structures are distributed on a networked computer system, so that the computer program and any associated data, data files and data structures are stored, accessed and executed in a distributed manner by one or more processors or computers.

[0131] According to an exemplary embodiment of the present disclosure, a computer program product can also be provided, which includes computer instructions that, when executed by at least one processor, cause the at least one processor to perform the temperature control method of the liquid heating container according to an exemplary embodiment of the present disclosure.

[0132] Exemplarily, the present disclosure also provides a device, which includes a control module, a memory for storing executable instructions of the control module, and the control module is configured to read the executable instructions from the memory and execute the instructions to implement the temperature control method of the liquid heating container as described above.

[0133] In several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other manners. The described device embodiments are merely illustrative, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the various components shown or discussed can be through some interfaces, indirect coupling or communication connection between devices or units, and can be electrical, mechanical or other forms.

[0134] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units; they can be located in one place or distributed on multiple network units; and some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0135] In addition, each functional unit in each embodiment of the present application can be integrated into one processing unit, or each unit can be a separate unit, or two or more units can be integrated into one unit; the integrated unit can be realized in the form of hardware or in the form of hardware plus software functional units.

[0136] Those of ordinary skill in the art can understand that all or part of the steps of the above-mentioned method embodiments can be completed by program instruction-related hardware, and the foregoing program can be stored in a computer-readable storage medium, and the program executes the steps including the above-mentioned method embodiments when executed; and the foregoing storage medium includes mobile storage devices, read-only memories (ROM), magnetic discs or optical discs, and various storage media that can store program codes.

[0137] Alternatively, the integrated units of the present application, if implemented in the form of software functional modules and sold or used as independent products, can also be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present application can be embodied in the form of software products, and the computer software products are stored in a storage medium, including a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the methods of the embodiments of the present application. The foregoing storage medium includes mobile storage devices, ROM, magnetic discs or optical discs, and various storage media that can store program codes.

[0138] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the present specification and features of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0139] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0140] It should be understood that the various forms of flow shown above can be reordered, added or deleted steps. For example, each step described in the present disclosure can be executed in parallel, sequentially or in different order, as long as the desired results of the technical solutions disclosed in the present disclosure can be achieved, which is not limited herein.

[0141] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A temperature control method for a liquid heating vessel, characterised in that, The liquid heating container comprises a holding cavity for holding liquid and a heating assembly for heating the liquid; the method comprises: real-time detecting current liquid temperatures at at least two positions in the holding cavity; determining an actual liquid temperature in the holding cavity according to the current liquid temperatures at the at least two positions; controlling an operating state of the heating assembly according to the actual liquid temperature and a preset liquid temperature value; wherein the determining of the actual liquid temperature in the holding cavity according to the current liquid temperatures at the at least two positions specifically comprises: calculating a temperature difference between the current liquid temperatures at the at least two positions; comparing the temperature difference with a predetermined difference value to obtain a comparison result; in a case where the comparison result is that the temperature difference is greater than or equal to the predetermined difference value, determining a highest liquid temperature among the current liquid temperatures at the at least two positions as the actual liquid temperature; in a case where the comparison result is that the temperature difference is less than the predetermined difference value, comparing whether a temperature rise rate of the current liquid temperature within a predetermined time period is greater than or equal to a preset temperature rise rate threshold value, in a case where the temperature rise rate of the current liquid temperature within the predetermined time period is greater than or equal to the preset temperature rise rate threshold value, determining an average value of the current liquid temperatures at the at least two positions as the actual liquid temperature, and in a case where the temperature rise rate of the current liquid temperature within the predetermined time period is less than the preset temperature rise rate threshold value, determining a sum of the average value of the current liquid temperatures at the at least two positions and a preset compensation value as the actual liquid temperature.

2. The method of claim 1, wherein, The controlling of the operating state of the heating assembly according to the actual liquid temperature and the preset liquid temperature value specifically comprises: real-time detecting a current liquid level in the holding cavity; comparing the current liquid level with a preset liquid level threshold value; in a case where the current liquid level is greater than or equal to the preset liquid level threshold value, controlling the heating assembly to operate according to a first control parameter according to the actual liquid temperature and the preset liquid temperature value; in a case where the current liquid level is less than the preset liquid level threshold value, controlling the heating assembly to operate according to a second control parameter according to the actual liquid temperature and the preset liquid temperature value; wherein the first control parameter and the second control parameter each comprise at least one of heating power and heating time length, and the heating power in the first control parameter is less than the heating power in the second control parameter and / or the heating time length in the first control parameter is less than the heating time length in the second control parameter.

3. A temperature control device for a liquid heating vessel, characterised in that, The liquid heating container comprises a holding cavity for holding liquid and a heating assembly for heating the liquid; the temperature control device comprises: at least two temperature detection modules for being arranged at at least two positions in the holding cavity at intervals to real-time detect current liquid temperatures at the at least two positions; a heating assembly for being arranged in the holding cavity to heat water in the holding cavity; and The control unit is connected with the at least two temperature detection modules and the heating assembly respectively, and is configured to determine an actual liquid temperature in the accommodating cavity according to current liquid temperatures of the at least two positions, and control a working state of the heating assembly according to the actual liquid temperature and a preset liquid temperature. The control unit specifically comprises: A first calculation module configured to calculate a temperature difference between the current liquid temperatures of the at least two positions; A first comparison module configured to compare the temperature difference with a predetermined difference value to obtain a comparison result; A first determination module configured to determine a highest liquid temperature among the current liquid temperatures of the at least two positions as the actual liquid temperature when the comparison result is that the temperature difference is greater than or equal to the predetermined difference value; A second comparison module configured to compare whether a temperature rise rate of the current liquid temperatures within a predetermined time period is greater than or equal to a preset temperature rise rate threshold value when the comparison result is that the temperature difference is less than the predetermined difference value; A second determination module configured to determine an average value of the current liquid temperatures of the at least two positions as the actual liquid temperature when the temperature rise rate of the current liquid temperatures within the predetermined time period is greater than or equal to the preset temperature rise rate threshold value; A third determination module configured to determine a sum of the average value of the current liquid temperatures of the at least two positions and a preset compensation value as the actual liquid temperature when the temperature rise rate of the current liquid temperatures within the predetermined time period is less than the preset temperature rise rate threshold value.

4. The temperature control device of the liquid heating container according to claim 3, wherein the temperature control device further comprises a liquid level detector configured to be arranged on an inner side wall of the accommodating cavity to detect a current liquid level in the accommodating cavity; and the control unit is further configured to control the working state of the heating assembly according to the current liquid level.

5. The temperature control device of the liquid heating container according to claim 4, wherein the control unit further comprises: A third comparison module configured to compare the current liquid level with a preset liquid level threshold value; A first control module configured to control the heating assembly to work according to a first control parameter according to the actual liquid temperature and the preset liquid temperature value when the current liquid level is greater than or equal to the preset liquid level threshold value; A second control module configured to control the heating assembly to work according to a second control parameter according to the actual liquid temperature and the preset liquid temperature value when the current liquid level is less than the preset liquid level threshold value; The first control parameter and the second control parameter both include at least one of a heating power and a heating time length, and the heating power in the first control parameter is less than the heating power in the second control parameter, and / or the heating time length in the first control parameter is less than the heating time length in the second control parameter.

6. The temperature control device of the liquid heating container according to claim 3, wherein the heating assembly comprises heating discs, and the heating discs are located at the bottom of the accommodating cavity. ​ ​ ​ The at least two temperature detecting modules are located at the bottom of the accommodating cavity, and are arranged on opposite sides of the heat disc. One of the at least two temperature detecting modules is located at the bottom of the accommodating cavity, and the other is located on the sidewall of the accommodating cavity, and the at least two temperature detecting modules are arranged on opposite sides of the heat disc. One of the at least two temperature detecting modules is located at the bottom of the accommodating cavity, and the other is located on the sidewall of the accommodating cavity, and the at least two temperature detecting modules are arranged on the same side of the heat disc. The at least two temperature detecting modules are respectively located on opposite sidewalls of the accommodating cavity.

7. A liquid heating vessel characterised in that, The temperature control device comprises the temperature control device according to any one of claims 3 to 6.

8. A computer-readable storage medium, characterized in that, The storage medium stores a computer program for executing the temperature control method of the liquid heating container according to any one of claims 1 to 2.

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