Heating control methods, devices and heating equipment

Abstract

This application relates to a heating control method, apparatus, and heating equipment. When the difference between the surface temperature and the actual outlet water temperature is greater than a first preset temperature threshold (i.e., the surface temperature of the heating block is greater than the actual outlet water temperature), the actual outlet water temperature is considered low, and the heating power of the heating block is increased. When the difference between the surface temperature and the actual outlet water temperature is less than a second preset temperature threshold (i.e., the surface temperature of the heating block is less than the actual outlet water temperature), the actual outlet water temperature is considered high, and the heating power of the heating block is decreased to ensure that the actual outlet water temperature follows the surface temperature of the heating block. This scheme allows for timely adjustment of the heating power of the heating block when the actual outlet water temperature does not reach the desired temperature (i.e., when the actual outlet water temperature is greater than or equal to the surface temperature of the heating block), mitigating the problem of water temperature deviation caused by the thermal inertia of the heating block.

Description

Technical Field

[0001] This application relates to the field of heating technology, and in particular to a heating control method, apparatus and heating equipment. Background Technology

[0002] Coffee is one of the world's three major beverages and is loved by many. As people's living standards improve, their demands for the taste of coffee are becoming increasingly stringent. Coffee machines, as machines that automatically brew coffee, are widely used due to their high brewing efficiency.

[0003] The temperature of the water in a coffee machine has a significant impact on the taste of coffee. Too low a temperature can lead to under-extraction, resulting in overly acidic coffee; while too high a temperature can cause over-extraction, leading to overly bitter coffee. Currently, coffee machines generally regulate the water temperature by monitoring the surface temperature of the instant heating element. However, due to the thermal inertia of the heating element, the actual water temperature can easily deviate significantly, resulting in inaccurate extraction temperature and severely affecting the taste of the coffee. Summary of the Invention

[0004] Therefore, it is necessary to provide a heating control method, device, and heating equipment to alleviate the problem of excessive water temperature deviation caused by the thermal inertia of the heating block.

[0005] A heating control method includes: acquiring the surface temperature of a heating block and the actual outlet water temperature of a heating device; increasing the heating power of the heating block if the difference between the surface temperature and the actual outlet water temperature is greater than a first preset temperature threshold, wherein the first preset temperature threshold is greater than zero; and decreasing the heating power of the heating block if the difference between the surface temperature and the actual outlet water temperature is less than a second preset temperature threshold, wherein the second preset temperature threshold is less than zero.

[0006] The aforementioned heating control method can acquire the surface temperature of the heating block and the actual outlet water temperature during the heating process. It analyzes these two temperatures and, if the difference between the surface temperature and the actual outlet water temperature exceeds a first preset temperature threshold (i.e., the surface temperature of the heating block is higher than the actual outlet water temperature), the actual outlet water temperature is considered low, and the heating power of the heating block is increased. Conversely, if the difference is less than a second preset temperature threshold (i.e., the surface temperature of the heating block is lower than the actual outlet water temperature), the actual outlet water temperature is considered high, and the heating power of the heating block is reduced to ensure that the actual outlet water temperature follows the surface temperature of the heating block. This method allows for timely adjustment of the heating power of the heating block when the actual outlet water temperature does not reach the desired temperature (i.e., when the actual outlet water temperature is greater than or equal to the surface temperature of the heating block), mitigating the water temperature deviation caused by the thermal inertia of the heating block.

[0007] In one embodiment, after obtaining the surface temperature of the heating block and the actual outlet water temperature of the heating device, the method further includes: if the difference between the surface temperature and the actual outlet water temperature is greater than or equal to the second preset temperature threshold and less than or equal to the first preset temperature threshold, controlling the heating block to maintain the current heating power operation.

[0008] In one embodiment, after obtaining the surface temperature of the heating block and the actual outlet water temperature of the heating device, the method further includes: if the difference between the surface temperature and the actual outlet water temperature is less than a third preset temperature threshold or greater than a fourth preset temperature threshold, determining that the heating block is abnormal, wherein the third preset temperature threshold is less than a second preset temperature threshold and the fourth preset temperature threshold is greater than the first preset temperature threshold.

[0009] In one embodiment, the third preset temperature threshold is the lowest limit temperature of the difference between the surface temperature and the actual outlet water temperature, and the fourth preset temperature threshold is the highest limit temperature of the difference between the surface temperature and the actual outlet water temperature.

[0010] In one embodiment, before obtaining the surface temperature of the heating block and the actual outlet water temperature of the heating device, the method further includes: if the heating device enters the heating mode, controlling the water pump of the heating device to pressurize the water to a preset pressure threshold and then delivering it to the heating block; and controlling the operation of the heating block according to the set temperature and preset rated power.

[0011] In one embodiment, increasing the heating power of the heating block if the difference between the surface temperature and the actual outlet water temperature is greater than a first preset temperature threshold includes: increasing the heating power of the heating block if the difference between the surface temperature and the actual outlet water temperature is greater than the first preset temperature threshold and less than or equal to a first preset adjustment threshold; and controlling the heating block to operate at full power if the difference between the surface temperature and the actual outlet water temperature is greater than the first preset adjustment threshold and less than a fourth preset temperature threshold.

[0012] And / or, in one embodiment, reducing the heating power of the heating block if the difference between the surface temperature and the actual outlet water temperature is less than a second preset temperature threshold includes: if the difference between the surface temperature and the actual outlet water temperature is greater than or equal to a second preset adjustment threshold and less than the second preset temperature threshold, reducing the heating power of the heating block; if the difference between the surface temperature and the actual outlet water temperature is greater than a third preset temperature threshold and less than the second preset adjustment threshold, controlling the heating block to stop heating operation.

[0013] In one embodiment, the first preset temperature threshold is 1°C, the first preset adjustment threshold is 10°C, the fourth preset temperature threshold is 20°C, the second preset temperature threshold is -1°C, the second preset adjustment threshold is -10°C, and the third preset temperature threshold is -20°C.

[0014] And / or, in one embodiment, increasing the heating power of the heating block includes: adjusting the duty cycle of the heating block to a heating time greater than 1.6 seconds and less than 2 seconds, and a heating stop time greater than 1.2 seconds and less than 1.6 seconds; decreasing the heating power of the heating block includes adjusting the duty cycle of the heating block to a heating time greater than 1.2 seconds and less than 1.6 seconds, and a heating stop time greater than 1.6 seconds and less than 2 seconds.

[0015] In one embodiment, increasing the heating power of the heating block if the difference between the surface temperature and the actual outlet water temperature is greater than a first preset temperature threshold includes: if the difference between the surface temperature and the actual outlet water temperature is greater than the first preset temperature threshold and less than or equal to a third preset adjustment threshold, controlling the heating block to operate at a first preset heating power; the first preset heating power is greater than a preset rated power; if the difference between the surface temperature and the actual outlet water temperature is greater than the third preset adjustment threshold and less than or equal to a fourth preset adjustment threshold, controlling the heating block to operate at a second preset heating power; the second preset heating power is greater than the first preset heating power and less than full power; if the difference between the surface temperature and the actual outlet water temperature is greater than the fourth preset adjustment threshold and less than the fourth preset temperature threshold, controlling the heating block to operate at full power.

[0016] And / or, in one embodiment, reducing the heating power of the heating block if the difference between the surface temperature and the actual outlet water temperature is less than a second preset temperature threshold includes: if the difference between the surface temperature and the actual outlet water temperature is greater than or equal to a fifth preset adjustment threshold and less than the second preset temperature threshold, controlling the heating block to operate at a third preset heating power; the third preset heating power is less than a preset rated power; if the difference between the surface temperature and the actual outlet water temperature is greater than or equal to a sixth preset adjustment threshold and less than the fifth preset adjustment threshold, controlling the heating block to operate at a fourth preset heating power; the fourth preset heating power is less than the third preset heating power; if the difference between the surface temperature and the actual outlet water temperature is greater than the third preset temperature threshold and less than the sixth preset adjustment threshold, controlling the heating block to stop heating operation.

[0017] In one embodiment, the first preset temperature threshold is 1°C, the third preset adjustment threshold is 4°C, the fourth preset adjustment threshold is 10°C, the fourth preset temperature threshold is 20°C, the second preset temperature threshold is -1°C, the fifth preset adjustment threshold is -4°C, the sixth preset adjustment threshold is -10°C, and the third preset temperature threshold is -20°C.

[0018] And / or, in one embodiment, the duty cycle of the first preset heating power is 18:14, the duty cycle of the second preset heating power is 20:12, the duty cycle of the third preset heating power is 14:18, and the duty cycle of the fourth preset heating power is 12:20.

[0019] A heating control device includes: a temperature acquisition module for acquiring the surface temperature of a heating block and the actual outlet water temperature of a heating device; a heating power increase module for increasing the heating power of the heating block if the difference between the surface temperature and the actual outlet water temperature is greater than a first preset temperature threshold, wherein the first preset temperature threshold is greater than zero; and a heating power decrease module for decreasing the heating power of the heating block if the difference between the surface temperature and the actual outlet water temperature is less than a second preset temperature threshold, wherein the second preset temperature threshold is less than zero.

[0020] A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the above-described heating control method.

[0021] A computer program product includes a computer program that, when executed by a processor, implements the steps of the above-described heating control method.

[0022] A heating device includes a heating block, a water outlet pipe, a first temperature detector, a second temperature detector, and a processor. The first temperature detector is disposed on the heating block, the water outlet pipe is connected to the heating block, the second temperature detector is disposed on the water outlet pipe, and the heating block, the first temperature detector, and the second temperature detector are respectively connected to the processor. The processor is used to execute the steps of the above-described heating control method.

[0023] In one embodiment, the heating device further includes a water pump, the water tank is connected to the water pump and the water inlet pipe, the water pump is connected to the heating block through the water inlet pipe, and the water pump is connected to the processor.

[0024] And / or, in one embodiment, the heating device further includes an extraction device, the heating block being connected to the extraction device via the water outlet pipe, and the extraction device being connected to the processor.

[0025] In one embodiment, the heating device is a coffee machine. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the heating control method in one embodiment of this application;

[0028] Figure 2 This is a schematic diagram of the heating control method in another embodiment of this application;

[0029] Figure 3 This is a schematic diagram of the heating anomaly analysis process in one embodiment of this application;

[0030] Figure 4 This is a schematic diagram of the heating control method in another embodiment of this application;

[0031] Figure 5 This is a schematic diagram of the heating control method in another embodiment of this application;

[0032] Figure 6 This is a schematic diagram of the heating control method in another embodiment of this application;

[0033] Figure 7 This is a schematic diagram of the process of increasing heating power in one embodiment of this application;

[0034] Figure 8 This is a schematic diagram of the process of reducing heating power in one embodiment of this application;

[0035] Figure 9 This is a schematic diagram of a temperature change curve in one embodiment of this application;

[0036] Figure 10 This is a schematic diagram of the temperature change curve in another embodiment of this application;

[0037] Figure 11 This is a schematic diagram of the heating control device structure in one embodiment of this application;

[0038] Figure 12 This is a schematic diagram of the heating control device structure in another embodiment of this application;

[0039] Figure 13 This is a schematic diagram of the heating control device in another embodiment of this application;

[0040] Figure 14 This is a schematic diagram of the heating control device structure in another embodiment of this application;

[0041] Figure 15 This is a schematic diagram of the heating device structure in one embodiment of this application;

[0042] Figure 16 This is a schematic diagram of the heating device structure in another embodiment of this application.

[0043] Explanation of reference numerals in the attached drawings: 161-water tank, 162-inlet water pipe, 163-heating block, 164-processor, 165-first temperature detector, 166-second temperature detector, 167-outlet water pipe; 172-water pump, 174-extraction device. Detailed Implementation

[0044] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0045] The heating control method provided in this application is applied to heating equipment, specifically, to heating equipment that heats liquids using a heating block. The type of liquid is not unique; in a more detailed embodiment, the liquid can be water. The specific type of heating equipment is also not unique; in a more detailed embodiment, the heating equipment can be a coffee machine.

[0046] For this type of heating equipment, in actual operation, due to the lag in temperature adjustment of the heating block itself, when there is a need for temperature adjustment or when the water being heated by the heating block changes (e.g., adding cold water), the surface temperature of the heating block cannot be adjusted in time, resulting in a large deviation between the surface temperature of the heating block and the actual outlet water temperature.

[0047] The technical solution of this application includes a temperature detector installed at the heating block and another temperature detector installed on the corresponding water outlet pipe. These two temperature detectors can respectively detect the surface temperature of the heating block and the actual outlet water temperature. When a deviation occurs between the surface temperature and the actual outlet water temperature, the heating power of the heating block can be adjusted in a timely manner to change the actual outlet water temperature, ensuring that the actual outlet water temperature follows the surface temperature. Ultimately, this makes the actual output hot water more in line with actual needs, mitigating the problem of water temperature deviation caused by the thermal inertia of the heating block.

[0048] Please see Figure 1 A heating control method includes steps 102, 104 and 106.

[0049] Step 102: Obtain the surface temperature of the heating block of the heating device and the actual outlet water temperature.

[0050] Specifically, a heating block is a device used to convert electrical energy into thermal energy and heat water. It should be noted that the specific type of heating block is not unique; in a more detailed embodiment, the heating block includes an instantaneous heating module. For ease of understanding of the technical solution of this application, the following embodiments will use an instantaneous heating block for explanation.

[0051] In this embodiment, the heating device includes a water tank, an inlet pipe, a heating block, an outlet pipe, a first temperature detector, a second temperature detector, and a processor. The water tank is connected to the heating block through the inlet pipe. The first temperature detector is located on the heating block. The outlet pipe is connected to the heating block. The second temperature detector is located on the outlet pipe. The heating block, the first temperature detector, and the second temperature detector are respectively connected to the processor.

[0052] The water tank stores water. When hot water is needed, the user interacts with the processor to send a set temperature. The processor controls the heating block to heat the incoming water to the set temperature using a preset rated power, and then outputs the corresponding hot water through the outlet pipe for the user's use. During subsequent operation, the first temperature detector monitors the surface temperature of the heating block in real time, and the second temperature detector monitors the water temperature in the outlet pipe in real time, i.e., the actual outlet water temperature, and sends this information to the processor.

[0053] It should be noted that the type and number of the first temperature detector and the second temperature detector are not unique. In one embodiment, one or more first temperature detectors may be set on the heating block, and one or more second temperature detectors may be set on the water outlet pipe. After the processor obtains one or more temperature parameters and analyzes them, it finally obtains the surface temperature and the actual water outlet temperature.

[0054] In one embodiment, the first temperature detector and the second temperature detector are temperature sensing bulbs. In another embodiment, the first temperature detector and the second temperature detector may be set to other types, which are not limited here.

[0055] Step 104: If the difference between the surface temperature and the actual outlet water temperature is greater than the first preset temperature threshold, increase the heating power of the heating block.

[0056] Specifically, the first preset temperature threshold is greater than zero. The first preset temperature threshold represents the minimum difference between the surface temperature and the actual outlet water temperature that can be achieved when the heating block meets the power adjustment conditions. More specifically, the first preset temperature threshold represents the minimum difference between the surface temperature and the actual outlet water temperature that can be achieved when the heating block meets the power increase conditions.

[0057] After acquiring the surface temperature and the actual outlet water temperature, the processor will compare and analyze these two temperatures to determine whether the heating element of the current heating device meets the power adjustment conditions. Specifically, the processor will subtract the surface temperature from the actual outlet water temperature to obtain the difference, and use this difference to analyze whether the heating element meets the power adjustment conditions.

[0058] In practical applications, the processor has a preset temperature threshold. After calculating the difference between the surface temperature and the actual outlet water temperature, the processor compares this difference with the preset temperature threshold to determine if it exceeds the threshold. If the difference is greater than the threshold, it indicates that the actual outlet water temperature is too low, and the heating device meets the power increase requirements. The processor will then control the heating block to increase its heating power to quickly raise the actual outlet water temperature.

[0059] It should be noted that the processor can control the heating block to increase its heating power in various ways. In one embodiment, this can be achieved by adjusting the current or voltage flowing into the heating block. More specifically, in one embodiment, the heating power of the heating block can be controlled by its duty cycle. Specifically, by adjusting the ratio of heating time to off-heating time within a cycle, the power of the heating block can be adjusted. By increasing the heating time and decreasing the off-heating time, the heating power can be increased.

[0060] Step 106: If the difference between the surface temperature and the actual outlet water temperature is less than the second preset temperature threshold, reduce the heating power of the heating block.

[0061] Specifically, the second preset temperature threshold is less than zero. The second preset temperature threshold represents the maximum possible difference between the surface temperature and the actual outlet water temperature when the heating block meets the power adjustment conditions. More specifically, the first preset temperature threshold represents the maximum possible difference between the surface temperature and the actual outlet water temperature when the heating block meets the power reduction conditions.

[0062] Similar to increasing the heating power of the heating block mentioned above, a second preset temperature threshold is pre-stored in the processor. In actual use, the processor calculates the difference between the surface temperature and the actual outlet water temperature, and then compares this difference with the second preset temperature threshold to determine if the difference is less than the threshold. If the difference is less than the threshold, it indicates that the actual outlet water temperature is too high, and the heating device meets the power reduction condition. The processor will then control the heating block to reduce its heating power to quickly lower the actual outlet water temperature.

[0063] Similarly, there is no single way to reduce the heating power of the heating block. It can be achieved by adjusting the voltage or current flowing into the heating block, or by adjusting the duty cycle of the heating block. The choice depends on the specific needs. For ease of understanding of the technical solution of this application, the following embodiments can all be understood as adjusting the heating power of the heating block by adjusting its duty cycle. Specifically, increasing the heating time within a cycle increases the heating power, while decreasing the heating time within a cycle reduces the heating power.

[0064] The aforementioned heating control method can acquire the surface temperature of the heating block and the actual outlet water temperature during the heating process. It analyzes these two temperatures and, if the difference between the surface temperature and the actual outlet water temperature exceeds a first preset temperature threshold (i.e., the surface temperature of the heating block is higher than the actual outlet water temperature), the actual outlet water temperature is considered low, and the heating power of the heating block is increased. Conversely, if the difference is less than a second preset temperature threshold (i.e., the surface temperature of the heating block is lower than the actual outlet water temperature), the actual outlet water temperature is considered high, and the heating power of the heating block is reduced to ensure that the actual outlet water temperature follows the surface temperature of the heating block. This method allows for timely adjustment of the heating power of the heating block when the actual outlet water temperature does not reach the desired temperature (i.e., when the actual outlet water temperature is greater than or equal to the surface temperature of the heating block), mitigating the water temperature deviation caused by the thermal inertia of the heating block.

[0065] Please see Figure 2 In one embodiment, after step 102, the method further includes step 202.

[0066] Step 202: If the difference between the surface temperature and the actual outlet water temperature is greater than or equal to the second preset temperature threshold and less than or equal to the first preset temperature threshold, control the heating block to maintain the current heating power operation.

[0067] Specifically, in practical applications, when the processor performs differential analysis based on the surface temperature and the actual outlet water temperature, a situation may arise where the difference is greater than or equal to the second preset temperature threshold and less than or equal to the first preset temperature threshold. In this case, the processor assumes that the actual outlet water temperature follows the surface temperature of the heating block well, and the actual outlet water temperature basically meets the usage requirements. Therefore, when the processor detects that the difference between the surface temperature and the actual outlet water temperature is between the second and first preset temperature thresholds, it does not adjust the heating power of the heating block in the current state, but simply controls the heating block to maintain the current heating power.

[0068] It should be noted that the values ​​of the first and second preset temperature thresholds are not unique. In one embodiment, to ensure that the actual outlet water temperature closely follows the surface temperature of the heating element and meets the hot water demand, the first and second preset temperature thresholds should be set as close to 0 as possible. More specifically, in one embodiment, the first preset temperature threshold can be set to 1°C and the second preset temperature threshold to -1°C. In another embodiment, the first preset temperature threshold can be set to be greater than 0°C and less than 1°C, or slightly greater than 1°C, such as 1.1°C or 1.2°C. Similarly, the second preset temperature threshold can be set to be greater than -1°C and less than 0°C, or slightly less than -1°C, such as -1.1°C or -1.2°C, depending on the specific needs.

[0069] Please see Figure 3 In one embodiment, after step 102, the method further includes steps 302, 304 and 306.

[0070] Step 302: Check whether the heating block is heating abnormally based on the surface temperature and the actual outlet water temperature.

[0071] Step 304: If the heating block is heating abnormally, output an alarm message.

[0072] Step 306: If the heating block does not heat abnormally, perform power adjustment analysis based on the surface temperature and the actual outlet water temperature.

[0073] Specifically, in this embodiment, after the processor obtains the surface temperature and the actual outlet water temperature, it first checks whether the heating block is heating abnormally. If the heating block is not heating abnormally, it performs a power adjustment analysis based on the surface temperature and the actual outlet water temperature. That is, it analyzes the relationship between the difference between the surface temperature and the actual outlet water temperature and the first preset temperature threshold and the second preset temperature threshold. Finally, it performs the corresponding heating power adjustment operation based on the analysis results. If the analysis shows that the heating block is heating abnormally, the processor will output an alarm message to inform the user of this abnormal state so that the heating block can be repaired in a timely manner.

[0074] It is understood that the method of outputting alarm information is not unique. In one embodiment, the heating device may be equipped with an alarm in the form of sound or light. When the processor detects an abnormal heating of the heating block, it sends an alarm message to the alarm, which then alerts the user. In another embodiment, the heating device may communicate with a terminal such as a mobile phone, and the processor may inform the user of the abnormal heating status of the heating block by pushing the alarm message to the terminal.

[0075] This method allows for the detection of heating block abnormalities after obtaining the surface temperature and actual outlet water temperature, ensuring that subsequent power adjustments are made only when the heating block is not abnormally heated, thus effectively improving the operational reliability of the heating equipment.

[0076] In one embodiment, after step 102, the method verifies whether the heating block is heating abnormally, specifically including: if the difference between the surface temperature and the actual outlet water temperature is less than a third preset temperature threshold or greater than a fourth preset temperature threshold, it is determined that the heating block is heating abnormally. Wherein, the third preset temperature threshold is less than the second preset temperature threshold, and the fourth preset temperature threshold is greater than the first preset temperature threshold.

[0077] Specifically, the third preset temperature threshold is the minimum difference between the surface temperature and the actual outlet water temperature that the heating block can achieve under normal operating conditions due to the thermal inertia of the heating block. The fourth preset temperature threshold is the maximum difference between the surface temperature and the actual outlet water temperature that the heating block can achieve under normal operating conditions due to the thermal inertia of the heating block.

[0078] In this embodiment, the heating block is considered to be in normal operation, meaning no heating abnormality occurs, when the difference between the surface temperature of the heating block and the actual outlet water temperature is between a third preset temperature threshold and a fourth preset temperature threshold. If the difference is greater than the fourth preset temperature threshold or less than the third preset temperature threshold, the heating block is considered not to be operating normally, meaning a heating abnormality has occurred.

[0079] The solution in this embodiment uses a third preset temperature threshold and a fourth preset temperature threshold to determine whether the heating block is heating abnormally, which has the advantages of simple judgment method and high accuracy of judgment result.

[0080] It should be noted that the values ​​of the fourth and third preset temperature thresholds are not unique. They will vary depending on the type of heating block used in the specific application scenario. For example, in a more detailed embodiment, the third preset temperature threshold is the lowest limit temperature of the difference between the surface temperature and the actual outlet water temperature, and the fourth preset temperature threshold is the highest limit temperature of the difference between the surface temperature and the actual outlet water temperature. More specifically, the fourth preset temperature threshold can be set to 20℃, and the third preset temperature threshold can be set to -20℃.

[0081] Please see Figure 4 In one embodiment, prior to step 102, the method further includes steps 402 and 404.

[0082] Step 402: If the heating device enters the heating mode, control the water pump of the heating device to pressurize the water to the preset pressure threshold and then deliver it to the heating block.

[0083] Step 404: Control the operation of the heating block according to the set temperature and preset rated power.

[0084] Specifically, entering heating mode refers to the state where the heating block starts operating after the heating function of the heating device is turned on. In this embodiment, a water pump is also installed between the water tank and the heating block of the heating device. The water tank is connected to the water pump, which is connected to the heating block through an inlet pipe and to the processor. After entering heating mode, the water in the water tank needs to be pressurized by the water pump before flowing into the heating block for heating. During the heating process, the user will set a set temperature for the heating block according to actual usage needs, with the aim of heating the water to the set temperature. Therefore, after the heating block enters heating mode, the operation of the heating block is controlled based on the user-set set temperature and the preset rated power, ultimately causing the surface temperature of the heating block to reach the set temperature. It is considered that the actual outlet water temperature has reached the required set temperature at this point.

[0085] However, in real-world scenarios, when cold water is added to the heating block, the surface temperature of the heating block changes relatively slowly due to its thermal inertia (meaning that a 1°C increase or decrease in surface temperature requires a significant amount of energy, resulting in a long temperature change response time). This leads to the actual outflowing water temperature being lower than the surface temperature of the heating block. Alternatively, when heating the incoming water using the heating block, its thermal inertia causes the surface temperature of the heating block to be lower than the actual outflowing water temperature.

[0086] Therefore, in this embodiment, after the heating device enters the heating mode and the water pump pressurizes the water to a preset pressure threshold and delivers it to the heating block, the heating block first operates at a preset rated power until the surface temperature of the heating block reaches the set temperature. After this, the processor adjusts the heating power of the heating block based on the surface temperature and the actual outlet water temperature, thereby achieving follow-up control of the surface temperature by the actual outlet water temperature.

[0087] It should be noted that the preset rated power is not unique. In one embodiment, taking the heating power as an example, which is expressed by the duty cycle of the heating block (that is, the ratio of heating time to heating stop time in one cycle), the preset rated power can be set to 16:16, that is, in a cycle of 3.2s (seconds), heating lasts for 1.6s and heating stop lasts for 1.6s.

[0088] The preset pressure threshold is not unique and can vary depending on the type of heating device. In a more detailed embodiment, taking a coffee machine as an example, the preset pressure threshold can be set to 9 bar, 15 bar, or 20 bar, etc.

[0089] Please see Figure 5In one embodiment, step 104 includes steps 502 and 504.

[0090] Step 502: If the difference between the surface temperature and the actual outlet water temperature is greater than the first preset temperature threshold and less than or equal to the first preset adjustment threshold, increase the heating power of the heating block.

[0091] Step 504: If the difference between the surface temperature and the actual outlet water temperature is greater than the first preset adjustment threshold and less than the fourth preset temperature threshold, control the heating block to operate at full power.

[0092] Specifically, in this embodiment, a first preset adjustment threshold is pre-stored in the processor. This first preset adjustment threshold is between a first preset adjustment temperature threshold and a fourth preset temperature threshold. When the difference is greater than the first preset temperature threshold but less than or equal to the first preset adjustment threshold, the heating power of the heating block only needs to be appropriately increased based on the current heating power. However, when the difference is greater than the first preset adjustment threshold but less than the fourth preset temperature threshold, in order to adjust the actual outlet water temperature to the required state as quickly as possible, the heating block needs to be controlled to operate at full power. Full-power heating operation means that within one cycle, the heating time accounts for 100%, and there is no heating stop time.

[0093] It should be noted that there is no single way to increase the heating power of the heating block. In one embodiment, the heating power can be increased by a certain increment based on the current heating power. For example, the heating time can be increased by 0.1 seconds per cycle based on the current heating power. In another embodiment, the heating power can be directly adjusted to a value greater than the preset rated power; the specific method is not limited.

[0094] In a more detailed embodiment, taking a cycle of 3.2s as an example, increasing the heating power of the heating block can be achieved by adjusting the heating time to (1.6s, 2s), and correspondingly adjusting the stopping heating time to (1.2s, 1.6s), that is, ensuring that the heating time is longer than the stopping heating time within a cycle. For example, if the heating time in a cycle is 1.7s, the corresponding stopping heating time is 1.5s; if the heating time in a cycle is 1.8s, the stopping heating time is 1.4s, and so on.

[0095] It is understood that the value of the first preset adjustment threshold is not unique. In a more detailed embodiment, the first preset adjustment threshold can be set to 10℃. Taking a first preset temperature threshold of 1℃ as an example, in this embodiment, when the difference between the surface temperature and the actual outlet water temperature is between (1℃, 10℃), the heating time is adjusted to (1.6s, 2s), and the heating stop time is adjusted to (1.2s, 1.6s) to increase the heating power. When the difference is between (10℃, 20℃), it is adjusted to full power heating operation until the difference is finally between the second preset adjustment threshold and the first preset adjustment threshold.

[0096] Please see Figure 6 In one embodiment, step 106 includes steps 602 and 604.

[0097] Step 602: If the difference between the surface temperature and the actual outlet water temperature is greater than or equal to the second preset adjustment threshold and less than the second preset temperature threshold, reduce the heating power of the heating block.

[0098] Step 604: If the difference between the surface temperature and the actual outlet water temperature is greater than the third preset temperature threshold and less than the second preset adjustment threshold, control the heating block to stop heating operation.

[0099] Specifically, similar to increasing the heating power of the heating block mentioned above, the solution in this embodiment, with a second preset adjustment threshold pre-stored in the processor, further compares the difference between the surface temperature and the actual outlet water temperature with the second preset adjustment threshold if the processor analyzes that the difference is less than the second preset temperature threshold. If the difference is greater than or equal to the second preset adjustment threshold but less than the second preset temperature threshold, the heating power of the heating block can be appropriately reduced based on the current heating power. However, if the difference is greater than a third preset temperature threshold but less than the second preset adjustment threshold, the heating block needs to be stopped to adjust the actual outlet water temperature to the required state as quickly as possible.

[0100] Similarly, there is no single way to reduce the heating power of the heating block. In one embodiment, the heating power can be reduced by a certain amount based on the current heating power. For example, the heating time can be reduced by 0.1 seconds per cycle based on the current heating power. In another embodiment, the heating power can be directly adjusted to a value lower than the preset rated power; the specific method is not limited.

[0101] In a more detailed embodiment, taking a cycle of 3.2s as an example, reducing the heating power of the heating block can be achieved by adjusting the heating time within the cycle to be shorter than the heating stop time. For example, if the heating time in one cycle is 1.5s, the corresponding heating stop time is 1.7s; if the heating time in one cycle is 1.4s, the heating stop time is 1.8s, etc.

[0102] It is understood that the value of the second preset adjustment threshold is not unique. In a more detailed embodiment, the second preset adjustment threshold can be set to -10℃. Taking a second preset temperature threshold of -1℃ as an example, in this embodiment, when the difference between the surface temperature and the actual outlet water temperature is between [-10℃, -1℃), the heating time is adjusted to (1.2s, 1.6s), and the heating stop time is adjusted to (1.6s, 2s), thereby reducing the heating power. When the difference is between (-20℃, -10℃), the heating operation is stopped until the difference is finally between the second preset adjustment threshold and the first preset adjustment threshold.

[0103] Please see Figure 7 In one embodiment, step 104 includes steps 702, 704 and 706.

[0104] Step 702: If the difference between the surface temperature and the actual outlet water temperature is greater than the first preset temperature threshold and less than or equal to the third preset adjustment threshold, control the heating block to operate at the first preset heating power.

[0105] Step 704: If the difference between the surface temperature and the actual outlet water temperature is greater than the third preset adjustment threshold and less than or equal to the fourth preset adjustment threshold, control the heating block to operate at the second preset heating power.

[0106] Step 706: If the difference between the surface temperature and the actual outlet water temperature is greater than the fourth preset adjustment threshold and less than the fourth preset temperature threshold, control the heating block to operate at full power.

[0107] Specifically, the first preset heating power is greater than the preset rated power, and the second preset heating power is greater than the first preset heating power but less than the full power. In this embodiment, for the case of increasing the heating power, three different heating power adjustment ranges are set, and a different heating power is set for each power adjustment range. In practical applications, the heating power is matched to the heating block according to the range of the difference between the surface temperature and the actual outlet water temperature.

[0108] It is understood that the third and fourth preset adjustment thresholds, as well as the first and second preset heating powers, are not unique, as long as the heating power is relatively small when the difference is small. For example, in a more detailed embodiment, the third preset adjustment threshold can be set to 4°C, the fourth preset adjustment threshold to 10°C, the first preset heating power to a duty cycle of 18:14 (the ratio of heating time to stopping heating time), the second preset heating power to a duty cycle of 20:12, and the first preset temperature threshold to 1°C. Correspondingly:

[0109] When the temperature difference is between (1℃ and 4℃), the heating block is controlled to operate with a duty cycle of 18:14; when the temperature difference is between (4℃ and 10℃), the heating block is controlled to operate with a duty cycle of 20:12; when the temperature difference is between (10℃ and 20℃), the heating block is controlled to operate at full power.

[0110] Please see Figure 8 In one embodiment, step 106 includes steps 802, 804 and 806.

[0111] Step 802: If the difference between the surface temperature and the actual outlet water temperature is greater than or equal to the fifth preset adjustment threshold and less than the second preset temperature threshold, control the heating block to operate at the third preset heating power.

[0112] Step 804: If the difference between the surface temperature and the actual outlet water temperature is greater than or equal to the sixth preset adjustment threshold and less than the fifth preset adjustment threshold, control the heating block to operate at the fourth preset heating power.

[0113] Step 806: If the difference between the surface temperature and the actual outlet water temperature is greater than the third preset temperature threshold and less than the sixth preset adjustment threshold, control the heating block to stop heating operation.

[0114] Specifically, the third preset heating power is less than the preset rated power; the fourth preset heating power is less than the third preset heating power. In this embodiment, for the case of lowering the heating power, three different heating power adjustment ranges are set, and a different heating power is set for each power adjustment range. In practical applications, the heating power is matched to the heating block according to the range of the difference between the surface temperature and the actual outlet water temperature.

[0115] It is understood that the fifth and sixth preset adjustment thresholds, as well as the third and fourth preset heating powers, are not unique, as long as the heating power is relatively small when the difference is small. For example, in a more detailed embodiment, the fifth preset adjustment threshold can be set to -4℃, the sixth preset adjustment threshold to -10℃, the third preset heating power to a duty cycle of 14:18, the fourth preset heating power to a duty cycle of 12:20, and the second preset temperature threshold to -1℃. Correspondingly:

[0116] When the temperature difference is between -4℃ and -1℃, the heating block is controlled to operate with a duty cycle of 14:18; when the temperature difference is between -10℃ and -4℃, the heating block is controlled to operate with a duty cycle of 12:20; when the temperature difference is between -20℃ and -10℃, the heating block is controlled to stop heating.

[0117] To facilitate understanding of the technical solution of this application, the following detailed embodiments will be used to explain and illustrate this application. In this embodiment, the first preset temperature threshold is 1℃, the second preset temperature threshold is -1℃, the preset rated power is 16:16 (heating time 1.6s, heating stop time 1.6s), and the heating device is a coffee machine.

[0118] When the coffee machine is turned on, the processor controls the water pump to pressurize the water from the tank to a preset pressure threshold (e.g., 9 bar) and deliver it to the heating block through the inlet pipe. The processor controls the heating block to operate at a 16:16 duty cycle, heating its surface to the set temperature. Afterward, the heating block delivers the heated water to the coffee machine's extraction unit to perform the extraction process. At this point, cold water is added to the heating block. To ensure that the temperature of the hot water delivered to the extraction unit meets the requirements, the surface temperature of the heating block and the actual water temperature are analyzed.

[0119] The processor subtracts the actual outlet water temperature from the real-time acquired surface temperature to obtain the difference between the surface temperature and the actual outlet water temperature. This difference is then compared with a third preset temperature threshold (e.g., -20℃) and a fourth preset temperature threshold (20℃) to determine if the heating element is malfunctioning. If the difference is greater than or equal to 20℃, or less than or equal to -20℃, the heating element is considered malfunctioning, and an alarm message is output.

[0120] If the temperature difference is greater than -20℃ and less than 20℃, the difference is compared with the first preset temperature threshold and the second preset temperature threshold. If the difference is greater than the first preset temperature threshold, it is further compared with the first preset adjustment threshold (e.g., 10℃). If the analysis shows that the difference is greater than the first preset temperature threshold (1℃) and less than or equal to the first preset adjustment threshold (10℃), the processor will control the heating block to increase the heating power, for example, adjusting the heating time to any value between (1.6s, 2s) and the corresponding adjustment of the stop heating time to a value between (1.2s, 1.6s). If the analysis shows that the difference is greater than the first preset adjustment threshold and less than the fourth preset temperature threshold (e.g., 20℃), the heating block is controlled to operate at full power.

[0121] If the difference is less than the second preset temperature threshold, the difference is further compared with the second preset adjustment threshold (e.g., -10℃). If the analysis shows that the difference is greater than or equal to the second preset adjustment threshold and less than the second preset temperature threshold (-1℃), the processor will control the heating block to reduce the heating power, for example, adjusting the heating time to any value between (1.2s, 1.6s) and the corresponding adjustment to the stop heating time between (1.6s, 2s). If the analysis shows that the difference is greater than the third preset temperature threshold (-20℃) and less than the first preset adjustment threshold, the processor will control the heating block to stop heating.

[0122] If the difference is greater than the second preset temperature threshold and less than the first preset temperature threshold, the heating power adjustment operation will end, and the heating block will be controlled to maintain the current heating power until the coffee extraction is finally completed.

[0123] like Figure 9 As shown, this figure is a curve depicting the relationship between the surface temperature of the heater and the actual outlet water temperature, obtained using the heating control method of this application embodiment, when the water tank is filled with water from a heating block. Figure 10 When the heating power is not adjusted, the relationship curve between the surface temperature of the heater and the real-time outlet water temperature is shown. The fluctuation of the actual outlet water temperature is significantly reduced, and the actual outlet water temperature can better follow the temperature of the heating block, effectively alleviating the problem of water temperature deviation caused by the thermal inertia of the heating block.

[0124] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0125] Based on the same inventive concept, this application also provides a heating control device for implementing the heating control method described above. The solution provided by this device is similar to the solution described in the above method; therefore, the specific limitations in one or more heating control device embodiments provided below can be found in the limitations of the heating control method described above, and will not be repeated here.

[0126] Please see Figure 11 A heating control device includes: a temperature acquisition module 122, a heating power increase module 124, and a heating power decrease module 126.

[0127] The temperature acquisition module 122 is used to acquire the surface temperature of the heating block and the actual outlet water temperature of the heating device; the heating power increase module 124 is used to increase the heating power of the heating block if the difference between the surface temperature and the actual outlet water temperature is greater than a first preset temperature threshold; the first preset temperature threshold is greater than zero; the heating power decrease module 126 is used to decrease the heating power of the heating block if the difference between the surface temperature and the actual outlet water temperature is less than a second preset temperature threshold; the second preset temperature threshold is less than zero.

[0128] Please see Figure 12 In one embodiment, after the temperature acquisition module 122, the device further includes a power maintenance module 132. The power maintenance module 132 is used to control the heating block to maintain the current heating power if the difference between the surface temperature and the actual outlet water temperature is greater than or equal to a second preset temperature threshold and less than or equal to a first preset temperature threshold.

[0129] Please see Figure 13In one embodiment, after the temperature acquisition module 122, the device further includes an anomaly detection module 142. The anomaly detection module 142 is used to verify whether the heating block is heating abnormally based on the surface temperature and the actual outlet water temperature; if the heating block is heating abnormally, an alarm message is output; if the heating block is not heating abnormally, power adjustment analysis is performed based on the surface temperature and the actual outlet water temperature.

[0130] In one embodiment, the anomaly detection module 142 is further configured to detect whether the difference between the surface temperature and the actual outlet water temperature is greater than a third preset temperature threshold and less than a fourth preset temperature threshold; if the difference is greater than the third preset temperature threshold and less than the fourth preset temperature threshold, it is determined that the heating block is not heating abnormally.

[0131] Please see Figure 14 In one embodiment, before the temperature acquisition module 122, the device further includes a heating preparation module 152. The heating preparation module is used to control the water pump of the heating device to pressurize water to a preset pressure threshold and deliver it to the heating block if the heating device enters the heating mode; and to control the operation of the heating block according to the set temperature and preset rated power.

[0132] In one embodiment, the heating power adjustment module 124 is further configured to increase the heating power of the heating block if the difference between the surface temperature and the actual outlet water temperature is greater than the first preset temperature threshold and less than or equal to the first preset adjustment threshold; and to control the heating block to operate at full power if the difference between the surface temperature and the actual outlet water temperature is greater than the first preset adjustment threshold and less than the fourth preset temperature threshold.

[0133] In one embodiment, the heating power reduction module 126 is further configured to reduce the heating power of the heating block if the difference between the surface temperature and the actual outlet water temperature is greater than or equal to a second preset adjustment threshold and less than a second preset temperature threshold; and to control the heating block to stop heating operation if the difference between the surface temperature and the actual outlet water temperature is greater than a third preset temperature threshold and less than a second preset adjustment threshold.

[0134] In one embodiment, the heating power adjustment module 124 is further configured to control the heating block to operate at a first preset heating power if the difference between the surface temperature and the actual outlet water temperature is greater than a first preset temperature threshold and less than or equal to a third preset adjustment threshold; control the heating block to operate at a second preset heating power if the difference between the surface temperature and the actual outlet water temperature is greater than a third preset adjustment threshold and less than or equal to a fourth preset adjustment threshold; and control the heating block to operate at full power if the difference between the surface temperature and the actual outlet water temperature is greater than a fourth preset adjustment threshold and less than a fourth preset temperature threshold.

[0135] In one embodiment, the heating power reduction module 126 is further configured to control the heating block to operate at a third preset heating power if the difference between the surface temperature and the actual outlet water temperature is greater than or equal to a fifth preset adjustment threshold and less than a second preset temperature threshold; control the heating block to operate at a fourth preset heating power if the difference between the surface temperature and the actual outlet water temperature is greater than or equal to a sixth preset adjustment threshold and less than a fifth preset adjustment threshold; and control the heating block to stop heating operation if the difference between the surface temperature and the actual outlet water temperature is greater than a third preset temperature threshold and less than a sixth preset adjustment threshold.

[0136] Each module in the aforementioned heating control device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device, or stored in the memory of a computer device as software, so that the processor can call and execute the operations corresponding to each module.

[0137] The aforementioned heating control device can acquire the surface temperature of the heating block and the actual outlet water temperature during the heating process. It analyzes these two temperatures and, if the difference between the surface temperature and the actual outlet water temperature exceeds a first preset temperature threshold (i.e., the surface temperature of the heating block is higher than the actual outlet water temperature), the actual outlet water temperature is considered low, and the heating power of the heating block is increased. Conversely, if the difference is less than a second preset temperature threshold (i.e., the surface temperature of the heating block is lower than the actual outlet water temperature), the actual outlet water temperature is considered high, and the heating power of the heating block is reduced to ensure that the actual outlet water temperature follows the surface temperature of the heating block. This method allows for timely adjustment of the heating power of the heating block when the actual outlet water temperature does not reach the desired temperature (i.e., when the actual outlet water temperature is greater than or equal to the surface temperature of the heating block), mitigating the water temperature deviation caused by the thermal inertia of the heating block.

[0138] Please see Figure 15 This application also provides a heating device, including a heating block 163, a water outlet pipe 167, a first temperature detector 165, a second temperature detector 166, and a processor 164. The first temperature detector 165 is disposed on the heating block 163, the water outlet pipe 167 is connected to the heating block 163, the second temperature detector 166 is disposed on the water outlet pipe 167, and the heating block 163, the first temperature detector 165, and the second temperature detector 166 are respectively connected to the processor 164. The processor 164 is used to execute the steps of the above-described heating control method.

[0139] Specifically, the heating control method is as shown in the above embodiments and accompanying drawings, and will not be repeated here. This heating device can acquire the surface temperature of the heating block 163 and the actual outlet water temperature during the heating process. It analyzes the surface temperature and the actual outlet water temperature. When the difference between the surface temperature and the actual outlet water temperature is greater than a first preset temperature threshold (i.e., the surface temperature of the heating block 163 is greater than the actual outlet water temperature), the actual outlet water temperature is considered low, and the heating power of the heating block 163 is increased. When the difference between the surface temperature and the actual outlet water temperature is less than a second preset temperature threshold (i.e., the surface temperature of the heating block 163 is less than the actual outlet water temperature), the actual outlet water temperature is considered high, and the heating power of the heating block 163 is reduced so that the actual outlet water temperature follows the surface temperature of the heating block 163. Through this scheme, the heating power of the heating block 163 can be adjusted in a timely manner when the actual outlet water temperature does not reach the required temperature (i.e., the actual outlet water temperature is greater than or equal to the surface temperature of the heating block 163), alleviating the problem of water temperature deviation caused by the thermal inertia of the heating block 163.

[0140] Please see Figure 16 In one embodiment, the heating device further includes a water pump 172 and a water inlet pipe 162. The water pump 172 is connected to the heating block 163 through the water inlet pipe 162, and the water pump 172 is connected to the processor 164.

[0141] In this embodiment, a water pump 172 is also provided between the water tank 161 and the heating block 163 of the heating device. Furthermore, a water tank 161 is provided, connected to the water pump 172. The water pump 172 is connected to the heating block 163 via an inlet pipe 162, and is also connected to the processor 164. After entering the heating mode, the water in the water tank 161 needs to be pressurized by the water pump 172 before flowing into the heating block 163 for heating. During the heating process, the user sets a set temperature for the heating block 163 according to actual usage needs, with the aim of heating the water to the set temperature. Therefore, after the heating block 163 enters the heating mode, the operation of the heating block 163 is controlled based on the user-set set temperature and the preset rated power, ultimately causing the surface temperature of the heating block 163 to reach the set temperature. It is then considered that the actual outlet water temperature has reached the required set temperature.

[0142] And / or, please see Figure 16 In one embodiment, the heating device further includes an extraction device 174, with the heating block 163 connected to the extraction device 174 via a water outlet pipe 167, and the extraction device 174 connected to the processor 164.

[0143] Specifically, the extraction device 174 is a device that utilizes the hot water flowing from the heating block 163 to achieve the extraction function; its essence is the place where heated water is utilized. The specific type of heating equipment is not unique; in a more detailed embodiment, the heating equipment includes a coffee machine. When the coffee machine is turned on, the processor 164 controls the water pump 172 to pressurize the water output from the water tank 161 to a preset pressure threshold (e.g., 9 bar), and delivers it to the heating block 163 through the water inlet pipe 162. The processor 164 controls the heating block 163 to operate with a 16:16 duty cycle, heating the surface temperature of the heating block 163 to the set temperature. After this, the heating block 163 will deliver the heated hot water to the extraction device 174 of the coffee machine to perform the extraction work. At this time, cold water will be added to the heating block 163. To ensure that the temperature of the hot water subsequently delivered to the extraction device 174 meets the requirements, the surface temperature of the heating block 163 and the actual water outlet temperature will be acquired and analyzed.

[0144] In one embodiment, this application provides a computer-readable storage medium having a computer program stored thereon, the computer program performing the following steps when executed by a processor:

[0145] The surface temperature of the heating block and the actual outlet water temperature of the heating device are obtained; if the difference between the surface temperature and the actual outlet water temperature is greater than the first preset temperature threshold, the heating power of the heating block is increased; if the difference between the surface temperature and the actual outlet water temperature is less than the second preset temperature threshold, the heating power of the heating block is decreased.

[0146] In one embodiment, this application provides a computer program product, including a computer program that, when executed by a processor, performs the following steps:

[0147] The surface temperature of the heating block and the actual outlet water temperature of the heating device are obtained; if the difference between the surface temperature and the actual outlet water temperature is greater than the first preset temperature threshold, the heating power of the heating block is increased; if the difference between the surface temperature and the actual outlet water temperature is less than the second preset temperature threshold, the heating power of the heating block is decreased.

[0148] The aforementioned heating equipment, storage medium, and computer program products can acquire the surface temperature of the heating block and the actual outlet water temperature during the heating process. By analyzing the surface and actual outlet water temperatures, if the difference between the surface and actual outlet water temperatures exceeds a first preset temperature threshold (i.e., the surface temperature of the heating block is higher than the actual outlet water temperature), the actual outlet water temperature is considered low, and the heating power of the heating block is increased. If the difference is less than a second preset temperature threshold (i.e., the surface temperature of the heating block is lower than the actual outlet water temperature), the actual outlet water temperature is considered high, and the heating power of the heating block is reduced to ensure that the actual outlet water temperature follows the surface temperature of the heating block. This solution allows for timely adjustment of the heating power of the heating block when the actual outlet water temperature does not reach the desired temperature (i.e., when the actual outlet water temperature is greater than or equal to the surface temperature of the heating block), mitigating the water temperature deviation caused by the thermal inertia of the heating block.

[0149] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0150] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A heating control method, characterized in that, include: The surface temperature of the heating block and the actual outlet water temperature of the heating device are obtained; wherein, the heating block is an instant heating block, and the actual outlet water temperature is the temperature of the hot water output from the outlet pipe of the heating device; If the difference between the surface temperature and the actual outlet water temperature is greater than the first preset temperature threshold, the heating power of the heating block is increased; the first preset temperature threshold is greater than zero. If the difference between the surface temperature and the actual outlet water temperature is less than the second preset temperature threshold, the heating power of the heating block is reduced; the second preset temperature threshold is less than zero. The step of increasing the heating power of the heating block if the difference between the surface temperature and the actual outlet water temperature is greater than a first preset temperature threshold includes: increasing the heating power of the heating block if the difference between the surface temperature and the actual outlet water temperature is greater than the first preset temperature threshold and less than or equal to a first preset adjustment threshold; and controlling the heating block to operate at full power if the difference between the surface temperature and the actual outlet water temperature is greater than the first preset adjustment threshold and less than a fourth preset temperature threshold. And / or, the step of reducing the heating power of the heating block if the difference between the surface temperature and the actual outlet water temperature is less than a second preset temperature threshold includes: if the difference between the surface temperature and the actual outlet water temperature is greater than or equal to a second preset adjustment threshold and less than the second preset temperature threshold, reducing the heating power of the heating block; if the difference between the surface temperature and the actual outlet water temperature is greater than a third preset temperature threshold and less than the second preset adjustment threshold, controlling the heating block to stop heating operation.

2. The heating control method according to claim 1, characterized in that, After obtaining the surface temperature of the heating block and the actual outlet water temperature of the heating device, the process further includes: If the difference between the surface temperature and the actual outlet water temperature is greater than or equal to the second preset temperature threshold and less than or equal to the first preset temperature threshold, the heating block is controlled to maintain the current heating power operation.

3. The heating control method according to claim 1, characterized in that, After obtaining the surface temperature of the heating block and the actual outlet water temperature of the heating device, the process further includes: If the difference between the surface temperature and the actual outlet water temperature is less than a third preset temperature threshold or greater than a fourth preset temperature threshold, the heating block is determined to be abnormal, wherein the third preset temperature threshold is less than a second preset temperature threshold and the fourth preset temperature threshold is greater than the first preset temperature threshold.

4. The heating control method according to claim 3, characterized in that, The third preset temperature threshold is the lowest limit temperature of the difference between the surface temperature and the actual outlet water temperature, and the fourth preset temperature threshold is the highest limit temperature of the difference between the surface temperature and the actual outlet water temperature.

5. The heating control method according to claim 1, characterized in that, The first preset temperature threshold is 1℃, the first preset adjustment threshold is 10℃, the fourth preset temperature threshold is 20℃, the second preset temperature threshold is -1℃, the second preset adjustment threshold is -10℃, and the third preset temperature threshold is -20℃. And / or, increasing the heating power of the heating block includes: adjusting the duty cycle of the heating block to a heating time greater than 1.6 seconds and less than 2 seconds, and a heating stop time greater than 1.2 seconds and less than 1.6 seconds; The reduction of the heating power of the heating block includes adjusting the duty cycle of the heating block to a heating time greater than 1.2 seconds and less than 1.6 seconds, and a heating stop time greater than 1.6 seconds and less than 2 seconds.

6. The heating control method according to any one of claims 1-4, characterized in that, The step of increasing the heating power of the heating block if the difference between the surface temperature and the actual outlet water temperature is greater than a first preset temperature threshold also includes: If the difference between the surface temperature and the actual outlet water temperature is greater than the first preset temperature threshold and less than or equal to the third preset adjustment threshold, the heating block is controlled to operate at the first preset heating power; the first preset heating power is greater than the preset rated power. If the difference between the surface temperature and the actual outlet water temperature is greater than the third preset adjustment threshold and less than or equal to the fourth preset adjustment threshold, the heating block is controlled to operate at a second preset heating power; the second preset heating power is greater than the first preset heating power and less than the full power. If the difference between the surface temperature and the actual outlet water temperature is greater than the fourth preset adjustment threshold but less than the fourth preset temperature threshold, the heating block is controlled to operate at full power. And / or, if the difference between the surface temperature and the actual outlet water temperature is less than a second preset temperature threshold, reducing the heating power of the heating block further includes: If the difference between the surface temperature and the actual outlet water temperature is greater than or equal to the fifth preset adjustment threshold and less than the second preset temperature threshold, the heating block is controlled to operate at the third preset heating power; the third preset heating power is less than the preset rated power. If the difference between the surface temperature and the actual outlet water temperature is greater than or equal to the sixth preset adjustment threshold and less than the fifth preset adjustment threshold, the heating block is controlled to operate at the fourth preset heating power; the fourth preset heating power is less than the third preset heating power. If the difference between the surface temperature and the actual outlet water temperature is greater than the third preset temperature threshold and less than the sixth preset adjustment threshold, the heating block is controlled to stop heating operation.

7. The heating control method according to claim 6, characterized in that, The first preset temperature threshold is 1℃, the third preset adjustment threshold is 4℃, the fourth preset adjustment threshold is 10℃, the fourth preset temperature threshold is 20℃, the second preset temperature threshold is -1℃, the fifth preset adjustment threshold is -4℃, the sixth preset adjustment threshold is -10℃, and the third preset temperature threshold is -20℃. And / or, the duty cycle of the first preset heating power is 18:14, the duty cycle of the second preset heating power is 20:12, the duty cycle of the third preset heating power is 14:18, and the duty cycle of the fourth preset heating power is 12:

20.

8. A heating control device, characterized in that, include: A temperature acquisition module is used to acquire the surface temperature of the heating block of the heating device and the actual outlet water temperature; wherein, the heating block is an instant heating block, and the actual outlet water temperature is the temperature of the hot water output from the outlet pipe of the heating device; The heating power adjustment module is used to increase the heating power of the heating block if the difference between the surface temperature and the actual outlet water temperature is greater than a first preset temperature threshold; the first preset temperature threshold is greater than zero. The heating power reduction module is used to reduce the heating power of the heating block if the difference between the surface temperature and the actual outlet water temperature is less than a second preset temperature threshold; the second preset temperature threshold is less than zero. The heating power adjustment module is also used to: increase the heating power of the heating block if the difference between the surface temperature and the actual outlet water temperature is greater than the first preset temperature threshold and less than or equal to the first preset adjustment threshold; and control the heating block to operate at full power if the difference between the surface temperature and the actual outlet water temperature is greater than the first preset adjustment threshold and less than the fourth preset temperature threshold. And / or, the heating power reduction module is further configured to: reduce the heating power of the heating block if the difference between the surface temperature and the actual outlet water temperature is greater than or equal to a second preset adjustment threshold and less than a second preset temperature threshold; and control the heating block to stop heating operation if the difference between the surface temperature and the actual outlet water temperature is greater than a third preset temperature threshold and less than a second preset adjustment threshold.

9. A heating device, characterized in that, The device includes a heating block, a water outlet pipe, a first temperature detector, a second temperature detector, and a processor. The first temperature detector is disposed on the heating block, the water outlet pipe is connected to the heating block, the second temperature detector is disposed on the water outlet pipe, and the heating block, the first temperature detector, and the second temperature detector are respectively connected to the processor. The processor is used to execute the steps of the heating control method according to any one of claims 1 to 7.

10. The heating device according to claim 9, characterized in that, The heating device also includes a water pump and a water inlet pipe, the water pump being connected to the heating block through the water inlet pipe, and the water pump being connected to the processor; And / or, the heating device further includes an extraction device, the heating block is connected to the extraction device through the water outlet pipe, and the extraction device is connected to the processor.

11. The heating device according to claim 10, characterized in that, The heating device is a coffee machine.

Images