Automatic temperature adjusting device and control method for drinking water equipment

Abstract

The invention relates to the technical field of drinking equipment, in particular to an automatic temperature adjusting device of drinking equipment and a control method. The control method of the automatic temperature adjusting device of the water drinking equipment comprises the following steps that the water drinking equipment is started; when the warm water valve is opened, the electric control device controls the actual opening degree B to be a numerical value I, and the electric control device controls the actual opening degree B to be gradually reduced from the numerical value I at the speed of multiplying the electric valve adjusting interval M by the electric valve adjusting unit N until the water inlet and outlet ratio A is located in the interval between the numerical value I and the water inlet and outlet ratio threshold value A1; and the electric control device records the actual opening degree B at the moment and assigns the actual opening degree B to the self-storage opening degree KM. The water dispenser has the advantages that on the premise that the low-temperature water inlet pipe is directly communicated with tap water and a buffer container is not arranged, warm boiled water at the set temperature T can be rapidly and accurately output.

Description

Technical Field

[0001] The present invention relates to the technical field of drinking water equipment, and in particular to a control method for an automatic temperature regulating device of a drinking water equipment and an automatic temperature regulating device of a drinking water equipment. Background Art

[0002] Chinese invention patent CN118557048B discloses an intelligent temperature control method, which uses a warm water dispenser with intelligent temperature control. It includes the following steps: inputting a set temperature T into the intelligent controller 8, and the intelligent controller 8 stores the set temperature T; the intelligent controller 8 obtains the initial measured mixed water temperature t and sets the initial variable intermittent time M; at the same time, the intelligent controller 8 controls the low-temperature conveying device 121 to operate with an initial operating pulse, and the operating pulse is a fixed start time G plus a variable intermittent time M. The low-temperature conveying device 121 runs during the fixed start time G and stops during the variable intermittent time M; the mixed water measured temperature t is obtained after each mixed water measured temperature interval S, and the next variable intermittent time M is adjusted according to the current mixed water measured temperature t.

[0003] Chinese invention patent application CN117045120A discloses a boiled water dispenser, comprising a first heat exchanger, a heating water tank, a water outlet pump and a boiled water control valve, wherein the first heat exchanger comprises a cold water inlet, a hot water outlet, a boiled water inlet and a boiled water outlet, the boiled water inlet and the hot water outlet are respectively connected to the heating water tank, the water outlet pump is connected between the boiled water outlet and the boiled water control valve, and the heating water tank is connected to the atmosphere, and is characterized in that: it also comprises a storage water tank, a first water inlet pump and a control module, the first water inlet pump is connected between the cold water inlet and the storage water tank, the first water inlet pump, the water outlet pump and the boiled water control valve are respectively electrically connected to the control module, the control module controls the operation of the boiled water control valve, the water outlet pump and the first water inlet pump, and the water inlet flow rate Q1 of the first water inlet pump is less than or equal to the water outlet flow rate Q2 of the water outlet pump; this boiled water dispenser, through A storage water tank and its first water inlet pump are added. Since the storage water tank can store enough cold water in advance, it can ensure that the first water inlet pump is not easily affected by external water pressure changes when it is working, and a stable water inlet flow rate is always guaranteed; moreover, the control module always controls the water inlet flow rate Q1 of the first water inlet pump to be less than or equal to the water outlet flow rate Q2 of the outlet pump; during operation, the user opens the boiled water control valve, the outlet pump and the first water inlet pump work, and the control module controls the amount of cold water entering the heating water tank to be always less than or equal to the amount of boiled water discharged, and the storage water tank can ensure the water inlet flow rate of the first water inlet pump is stable, so that the water storage amount in the heating water tank will never be too full, and overflow of the heating water tank will be prevented, and the interior of the heating water tank connected to the atmosphere can achieve a true zero-pressure state; furthermore, since the heating water tank will never be too full, the heating efficiency is improved to a certain extent, and energy saving is achieved.

[0004] Chinese invention patent CN118557048B discloses an intelligent temperature control method. The intelligent temperature-controlled warm water dispenser includes a low-temperature container 1, which is connected to the tap water supply. While the low-temperature container 1 can avoid the problem of the warm water temperature deviating from the set temperature due to unstable tap water pressure, it occupies a large space, resulting in a larger and more expensive drinking water device. Furthermore, the installation of the low-temperature container 1 also results in higher costs. Therefore, a technical problem to be solved is to enable the drinking water device to be directly connected to the tap water supply without the low-temperature container 1 to quickly and accurately output warm water at the set temperature T. Summary of the Invention

[0005] One object of the present invention is to solve or alleviate the above technical problems.

[0006] The means adopted by the present invention is a control method for an automatic temperature control device of a drinking water device, wherein the drinking water device includes a low-temperature water inlet pipe, a heating container, a heat exchange device, a warm water outlet pipe, a temperature sensor and an electronic control device; the heating container is provided with a heating container inlet pipe, a high-temperature water outlet pipe and a heating device; the low-temperature water inlet pipe, the heat exchange device and the heating container inlet pipe are connected in sequence, and the high-temperature water outlet pipe, the heat exchange device and the warm water outlet pipe are connected in sequence; the low-temperature water inlet pipe is used for connecting with tap water; an electric valve and a water source flow meter are provided on the low-temperature water inlet pipe; a warm water delivery device and a warm water flow meter are provided on the warm water outlet pipe; and a warm water valve; the temperature sensor includes a heating temperature probe arranged in the heating container and a warm water temperature probe arranged on the warm water outlet pipe; the electric valve, the heating temperature probe, the warm water temperature probe, the water source flow meter, the warm water delivery device and the warm water flow meter are electrically connected to the electronic control device respectively; The control method of the automatic temperature regulating device of the drinking water equipment comprises the following steps: Turning on the drinking water device; When the warm water valve is open, the actual opening degree B of the electric valve controlled by the electronic control device is 1. The water flow rate flowing through the low-temperature water inlet pipe measured by the water source flow meter is the low-temperature water flow rate q1; the water flow rate flowing through the warm water outlet pipe measured by the warm water flow meter is the warm water flow rate q2; the ratio of the low-temperature water flow rate q1 to the warm water flow rate q2 is the inlet-outlet water ratio A; the parameter corresponding to the inlet-outlet water ratio A, input into and stored in the electronic control device, is the inlet-outlet water ratio threshold value A1; The electronic control device controls the actual opening degree B to decrease from value 1 at a rate of the electric valve adjustment interval M multiplied by the electric valve adjustment unit N until the water inlet and outlet ratio A is between value 1 and the water inlet and outlet ratio threshold value A1. The electronic control device 8 records the actual opening degree B at this time and assigns it to the self-stored opening degree KM. The rapid mixing step specifically comprises the electronic control device measuring the actual temperature t of the warm water at each temperature measurement time interval S, and comparing the absolute value of the difference between the actual temperature t of the warm water and the target temperature T of the warm water with the temperature difference threshold C; If the absolute value of the difference between the actual measured temperature t of the warm water and the target temperature T of the warm water is less than or equal to the temperature difference threshold C, the absolute value of the difference between the actual measured temperature t of the warm water and the target temperature T of the warm water is repeatedly compared with the temperature difference threshold C, so that the absolute value of the difference between the actual measured temperature t of the warm water and the target temperature T of the warm water is compared with the temperature difference threshold C to enter the next step of the self-circulation step without entering the rapid mixing step; If the absolute value of the difference between the actual measured warm water temperature t and the target warm water temperature T is greater than the temperature difference threshold C, the way to adjust the next actual opening degree B according to the actual measured warm water temperature t is that the next actual opening degree B is equal to the actual opening degree B of this time minus the absolute value of the previous actual opening degree B, multiplied by the difference between the target warm water temperature T and the actual measured warm water temperature t of this time, and then divided by the value obtained by subtracting the absolute value of the actual measured warm water temperature t of this time from the absolute value of the previous actual measured warm water temperature t, and then subtracted by the actual opening degree B of this time.

[0007] The effect achieved by the present invention is that, under the premise that the low-temperature water inlet pipe is directly connected to tap water and no buffer container is provided, warm boiled water of a set temperature T can be output quickly and accurately.

[0008] A further technical solution is, after waiting for n temperature measurement time intervals S, if the absolute value of the difference between the last measured warm water temperature t in the rapid mixing step and the warm water target temperature T is greater than a temperature difference threshold C, comparing the last actual opening degree B in the rapid mixing step with the self-stored opening degree KM; If the actual opening degree B is less than the self-stored opening degree KM, the process returns to the rapid mixing step; If the actual opening degree B is greater than or equal to the self-stored opening degree KM, the electronic control device 8 adjusts the actual opening degree B to the self-stored opening degree KM, and the water inlet and outlet ratio A is between the value 1 and the water inlet and outlet ratio threshold value A1, then the process returns to the step of rapid mixing; if the water inlet and outlet ratio A is outside the range between the value 1 and the water inlet and outlet ratio threshold value A1, then the process returns to the step of starting the drinking water device.

[0009] It can realize self-inspection and improve the reliability of drinking water equipment operation.

[0010] A further technical solution is that if the actual opening degree B is equal to 1, and if the water inlet and outlet ratio A is between the value 1 and the water inlet and outlet ratio threshold value A1, then the process returns to the step of rapid mixing; and if the water inlet and outlet ratio A is greater than the value 1, then the process returns to the step of turning on the drinking water device; and if the water inlet and outlet ratio A is less than the water inlet and outlet ratio threshold value A1, then the entire process is terminated.

[0011] It can realize self-inspection and improve the reliability of drinking water equipment operation.

[0012] A further technical solution is that a pressure-stabilizing valve is also provided on the warm water outlet pipe.

[0013] To reduce the pressure fluctuation of tap water.

[0014] The means adopted by the present invention is an automatic temperature regulating device for drinking water equipment, and uses the above-mentioned automatic temperature regulating device control method for drinking water equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of an automatic temperature control device for drinking water equipment according to an embodiment of the present invention; dotted lines represent electrical connections.

[0016] Low-temperature water inlet pipe 1; electric valve 11; water source flowmeter 12; pressure-stabilizing valve 13; heating container 2; heating container water inlet pipe 21; high-temperature water outlet pipe 22; heating device 23; heating water level sensor 24; low-level sensor 241; high-level sensor 242; limit sensor 249; boiling water pipe 29; boiling water valve 291; heat exchange device 3; warm water outlet pipe 4; warm water delivery device 41; warm water flowmeter 42; warm water valve 43; temperature sensor 5; heating temperature probe 52; warm water temperature probe 54; electronic control device 8. DETAILED DESCRIPTION

[0017] The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0018] As a specific embodiment, the present invention provides a method for controlling an automatic temperature control device for a drinking water device. The drinking water device includes a low-temperature water inlet pipe 1, a heating container 2, a heat exchange device 3, a warm water outlet pipe 4, a temperature sensor 5, and an electronic control device 8. The electronic control device 8 is an electronic control device with computing capabilities, such as a circuit board equipped with an MCU and a touch screen.

[0019] The heating container 2 is provided with a heating container water inlet pipe 21, a high temperature water outlet pipe 22 and a heating device 23. The heating device 23 is an electric heating pipe or the like, and is used to heat the water in the heating container 2.

[0020] Typically, the heating container 2 is provided with a hot water pipe 29, which is provided with a hot water valve 291. Opening the hot water valve 291 allows the hot water in the heating container 2 to be directly discharged through the hot water pipe 29. It should be noted that in this patent, hot water refers to water close to or equal to 100°C, not just water that has reached its boiling point in the physical sense, such as water at a temperature of 95°C or higher and close to 100°C. The 95°C can be adjusted according to actual needs.

[0021] Typically, a heating water level sensor 24 electrically connected to the electronic control device 8 is provided in the heating container 2; the heating water level sensor 24 includes one or more of a low-level sensor 241 for detecting the lowest water level in the heating container 2, a high-level sensor 242 for detecting the highest water level in the heating container 2, and a limit sensor 249 for detecting the limit water level in the heating container 2, so as to improve safety and / or equipment reliability.

[0022] The low-temperature water inlet pipe 1, the heat exchange device 3, and the heating container water inlet pipe 21 are sequentially connected, and the high-temperature water outlet pipe 22, the heat exchange device 3, and the warm water outlet pipe 4 are sequentially connected. It is easy to understand that the heat exchange device 3 is a conventional heat exchange device in the prior art, which generally includes a heat exchange outer layer and a heat exchange inner layer. The heating container water inlet pipe 21 is connected to one of the heat exchange outer layer and the heat exchange inner layer of the heat exchange device 3, and the high-temperature water outlet pipe 22 is connected to the other of the heat exchange outer layer and the heat exchange inner layer of the heat exchange device 3, thereby achieving the low-temperature water inlet pipe 1, the heat exchange device 3, and the heating container water inlet pipe 21 being sequentially connected, and the high-temperature water outlet pipe 22, the heat exchange device 3, and the warm water outlet pipe 4 being sequentially connected.

[0023] The low-temperature water inlet pipe 1 is used for connecting with tap water. It is easy to understand that the two ends of the low-temperature water inlet pipe 1 are connected to the heat exchange device 3 and the tap water respectively.

[0024] The low-temperature water inlet pipe 1 is provided with an electric valve 11 and a water source flow meter 12. The electric valve 11 is a conventional electric valve, which is driven by a servo motor or the like to realize closed-loop control, so that its opening degree can be set.

[0025] The warm water outlet pipe 4 is provided with a warm water delivery device 41, a warm water flow meter 42, and a warm water valve 43. The warm water delivery device 41 is a conventional water pump or the like.

[0026] The temperature sensor 5 includes a heating temperature probe 52 provided in the heating container 2 and a warm water temperature probe 54 provided on the warm water outlet pipe 4. It is easy to understand that the heating temperature probe 52 is used to measure the water temperature in the heating container 2, and the warm water temperature probe 54 measures the temperature of the warm water flowing through the warm water outlet pipe 4.

[0027] The electric valve 11 , the heating temperature probe 52 , the warm water temperature probe 54 , the water source flow meter 12 , the warm water delivery device 41 , and the warm water flow meter 42 are electrically connected to the electronic control device 8 , respectively.

[0028] Open warm water delivery device 41 and warm water valve 43 (warm water valve 43 can be a manual valve opened manually, or an electric valve opened by electronic control device 8). The boiled water in heating container 2 flows through high-temperature water outlet pipe 22 into heat exchange device 3. Simultaneously, electric valve 11 opens, allowing tap water (i.e., low-temperature water) to flow through low-temperature water inlet pipe 1, heat exchange device 3, and heating container water inlet pipe 21, then into heating container 2, replenishing the water in heating container 2. During this process, the low-temperature water and boiled water exchange heat in heat exchange device 3, heating the low-temperature water with the boiled water, which is more energy-efficient. Simultaneously, the boiled water is cooled by the low-temperature water to become warm water.

[0029] For the convenience of explanation, the following parameters are defined in the above process.

[0030] The water flow rate through the low-temperature water inlet pipe 1, measured by the water source flowmeter 12, is the low-temperature water flow rate q1. The water flow rate through the warm-water outlet pipe 4, measured by the warm-water flowmeter 42, is the warm-water flow rate q2. The ratio of the low-temperature water flow rate q1 to the warm-water flow rate q2 (i.e., the low-temperature water flow rate q1 divided by the warm-water flow rate q2) is the inlet-outlet water ratio A. The parameter corresponding to the inlet-outlet water ratio A, which is input and stored in the electronic control device 8, is the inlet-outlet water ratio threshold value A1. It is easy to understand that the warm-water flow rate q2 is determined by the warm-water delivery device 41. For example, the electronic control device 8 controls the speed of the warm-water delivery device 41 to control the warm-water flow rate q2. When the speed of the warm-water delivery device 41 is constant, the warm-water flow rate q2 is also constant.

[0031] The water temperature of the hot water outlet pipe 4 measured by the hot water temperature probe 54 is the hot water measured temperature t.

[0032] The opening percentage of the electric valve 11 fed back to the electronic control device 8 by the electric valve 11 is the actual opening degree B; it is easy to understand that the electric valve 11 is fully open (i.e. 100% open) and is a value of 1, and the electric valve 11 is fully closed (i.e. 00% open) and is a value of 0.

[0033] The parameters desired by the user and input into the electronic control device 8 through the touch screen and the like and stored are the warm water target temperature T and the minimum absolute value of the difference between the warm water measured temperature t and the warm water target temperature T, which is the temperature difference threshold C; The time between two adjacent measured temperatures t of the warm water is obtained by the electronic control device 8 as the temperature measurement time interval S.

[0034] The time interval for the electronic control device 8 to control and adjust the actual opening degree B is the electric valve adjustment interval M, and the minimum unit for adjusting the actual opening degree B each time is the electric valve adjustment unit N (for example, the electric valve adjustment unit N is 5%); it is easy to understand that the electric valve 11 has a servo closed-loop function, so the opening degree of the electric valve 11 read by the electronic control device 8 is equal to the actual physical opening degree B of the electric valve 11.

[0035] The parameters input into and stored in the electronic control device 8 also include the self-storage opening degree KM and the rapid temperature adjustment opening degree K. These two parameters will be described simultaneously when the control method of the automatic temperature adjustment device of the drinking water equipment is described in detail.

[0036] A method for controlling an automatic temperature regulating device for a drinking water device comprises the following steps: Turn on the drinking water device; for example, turn on the power switch of the drinking water device.

[0037] When the warm water valve 43 is opened, the electronic control device 8 controls the actual opening degree B of the electric valve 11 to be one. In other words, the electronic control device 8 controls the electric valve 11 to be fully opened.

[0038] The electronic control device 8 controls the actual opening degree B to decrease from the value of one at the rate of the electric valve adjustment interval M multiplied by the electric valve adjustment unit N (in other words, the self-stored opening degree KM = 1-electric valve adjustment interval M * electric valve adjustment unit N) until the water inlet and outlet ratio A is between the value of one and the water inlet and outlet ratio threshold value A1. The electronic control device 8 records the actual opening degree B at this time and assigns it to the self-stored opening degree KM. For example, if the self-stored opening degree KM is assigned to a further technical solution, this time is the nth time (nth is a natural number greater than or equal to 2 pre-set in the electronic control device 8). The formula with the number of times as a subscript is as follows: Actual opening degree B n+1 = Actual opening degree B n -|Actual opening degree B n -Actual opening degree B n-1 |*(Warm water target temperature T-Warm water measured temperature t n ) / | Actual temperature of warm water t n - Actual temperature of warm water t n-1For example, if this is the second time, actual opening degree B3 = actual opening degree B2 - |actual opening degree B2 - actual opening degree B1| * (hot water target temperature T - hot water measured temperature t2) / |hot water measured temperature t2 - hot water measured temperature t1|. When the tap water pressure is low, the actual opening degree B will be adjusted accordingly to increase the low-temperature water flow rate q1 accordingly; when the tap water pressure is high, the actual opening degree B will be adjusted accordingly to decrease the low-temperature water flow rate q1 accordingly, but the inlet and outlet water ratio A will remain within a certain range; it can eliminate or reduce the situation where the low-temperature water flow rate q1 is small but the warm water flow rate q2 is large, and hotter warm water is output from the warm water outlet pipe 4, or the low-temperature water flow rate q1 is large but the warm water flow rate q2 is small, and colder warm water is output from the warm water outlet pipe 4, thereby achieving the premise that the low-temperature water inlet pipe 1 is directly connected to the tap water and no buffer container (that is, the low-temperature container 1 in the Chinese invention patent CN118557048B) is set, warm boiled water of the set temperature T can be output quickly and accurately. It should be noted that if the actual measured temperature t of the warm water is greater than the target temperature T of the warm water, the difference obtained by subtracting the actual measured temperature t of the warm water from the target temperature T of the warm water is a negative number (the negative number is also multiplied by the absolute value of the actual opening degree B this time minus the absolute value of the previous actual opening degree B, and divided by the absolute value of the actual measured temperature t of the warm water this time minus the absolute value of the previous actual measured temperature t of the warm water. It can be seen that the negative number is multiplied by the first absolute value mentioned above and divided by the second absolute value mentioned above to remain a negative number); and the actual opening degree B this time minus the negative number (that is, negative and negative equals positive) makes the next actual opening degree B larger, so that the heat exchange effect of the heat exchange device 3 is improved, and then the actual measured temperature t of the warm water can quickly approach the target temperature T of the warm water.

[0039] After waiting for n temperature measurement time intervals S, if the absolute value of the difference between the last measured warm water temperature t and the warm water target temperature T in the rapid mixing step is greater than the temperature difference threshold C, it is easy to understand that if the absolute value of the difference between the last measured warm water temperature t and the warm water target temperature T in the rapid mixing step is greater than the temperature difference threshold C, the rapid mixing step will enter a self-circulation. The actual opening degree B of the last rapid mixing step is compared with the self-stored opening degree KM; If the actual opening degree B is less than the self-stored opening degree KM, the process returns to the rapid mixing step (i.e., the beginning of this step), realizing a self-loop and stopping the calculation of the next step.

[0040] If the actual opening degree B is greater than or equal to the self-stored opening degree KM, the electronic control device 8 adjusts the actual opening degree B to the self-stored opening degree KM, and if the inlet and outlet water ratio A is between the value 1 and the inlet and outlet water ratio threshold A1, the process returns to the rapid mixing step, achieving self-circulation and terminating the subsequent calculation step. If the inlet and outlet water ratio A is outside the range between the value 1 and the inlet and outlet water ratio threshold A1, the process returns to the step of activating the drinking water device. This enables self-checking and improves the reliability of the drinking water device operation.

[0041] As one specific embodiment, if the actual opening degree B is equal to 1 (i.e., the electric valve 11 is fully open), and if the inlet and outlet water ratio A is between a value of 1 and an inlet and outlet water ratio threshold value A1, the process returns to the rapid mixing step, achieving self-circulation and terminating the subsequent calculation step. Furthermore, if the inlet and outlet water ratio A is greater than the value of 1, the process returns to the step of activating the drinking water device. Furthermore, if the inlet and outlet water ratio A is less than the inlet and outlet water ratio threshold value A1, the entire process is terminated. It is easy to understand that when the inlet and outlet water ratio A is less than the inlet and outlet water ratio threshold value A1, it indicates that the tap water supply is cut off. This allows for self-checking and improves the reliability of the drinking water device.

[0042] As one of the specific implementations, a pressure stabilizing valve 13 is further provided on the warm water outlet pipe 4 to reduce the pressure variation of the tap water.

[0043] An automatic temperature regulating device for drinking water equipment uses the above-mentioned automatic temperature regulating device control method for drinking water equipment.

[0044] The terms "first", "second", etc. used in the present invention do not indicate any order, quantity or importance, but are only used for distinction.

[0045] As used herein, the terms a, an, etc. do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item.

[0046] Terms indicating orientation or position used in the present invention, such as top, bottom, side, longitudinal, lateral, middle, center, outside, inside, horizontal, vertical, left, right, above, below, etc., are intended to reflect relative positions rather than absolute positions.

[0047] As used herein, terms such as "substantially," "entirely," "approximately," and "closely" are qualifiers intended to indicate that a characteristic exists but a certain degree of deviation is permitted. The amount of such deviation may vary depending on the specific context; for example, the specific context of dimensional deviation may include, but is not limited to, standards related to dimensional tolerances.

Claims

1. A control method for an automatic temperature control device for a drinking water device, the drinking water device comprising a low-temperature water inlet pipe (1), a heating container (2), a heat exchange device (3), a warm water outlet pipe (4), a temperature sensor (5) and an electronic control device (8); the heating container (2) is provided with a heating container water inlet pipe (21), a high-temperature water outlet pipe (22) and a heating device (23); the low-temperature water inlet pipe (1), the heat exchange device (3) and the heating container water inlet pipe (21) are connected in sequence, and the high-temperature water outlet pipe (22), the heat exchange device (3) and the warm water outlet pipe (4) are connected in sequence; the low-temperature water inlet pipe (1) is used for connecting tap water; the low-temperature water inlet pipe (1) is used for connecting tap water; the low-temperature water inlet pipe (21) is used for connecting tap water; the high-temperature water outlet pipe (22) is used for connecting tap water; the low-temperature water inlet pipe (21) is used for connecting tap water; the high-temperature water outlet pipe (22) is used for connecting tap water; the high-temperature water outlet pipe (22) is used for connecting tap water; the low-temperature water inlet pipe (1) is used for connecting tap water; the high-temperature water outlet pipe (2 ... The water inlet pipe (1) is provided with an electric valve (11) and a water source flow meter (12); the warm water outlet pipe (4) is provided with a warm water delivery device (41), a warm water flow meter (42), and a warm water valve (43); the temperature sensor (5) comprises a heating temperature probe (52) arranged in the heating container (2) and a warm water temperature probe (54) arranged on the warm water outlet pipe (4); the electric valve (11), the heating temperature probe (52), the warm water temperature probe (54), the water source flow meter (12), the warm water delivery device (41), and the warm water flow meter (42) are electrically connected to the electronic control device (8) respectively; Its characteristics are: The control method of the automatic temperature regulating device of the drinking water equipment comprises the following steps: Turning on the drinking water device; When the warm water valve (43) is opened, the electric control device (8) controls the actual opening degree B of the electric valve (11) to be a value of one. The water flow rate flowing through the low-temperature water inlet pipe (1) measured by the water source flow meter (12) is the low-temperature water flow rate q1; the water flow rate flowing through the warm water outlet pipe (4) measured by the warm water flow meter (42) is the warm water flow rate q2; the ratio of the low-temperature water flow rate q1 to the warm water flow rate q2 is the water inlet and outlet ratio A; the parameter corresponding to the water inlet and outlet ratio A, input into the electronic control device (8) and stored is the water inlet and outlet ratio threshold value A1; The electronic control device (8) controls the actual opening degree B to decrease from the value 1 at a speed of the electric valve adjustment interval M multiplied by the electric valve adjustment unit N until the water inlet and outlet ratio A is between the value 1 and the water inlet and outlet ratio threshold value A1, and the electronic control device (8) records the actual opening degree B at this time and assigns it to the self-stored opening degree KM; The step of rapid mixing is specifically that the electronic control device (8) measures the actual temperature t of the warm water at each temperature measurement time interval S, and compares the absolute value of the difference between the actual temperature t of the warm water and the target temperature T of the warm water with a temperature difference threshold C; If the absolute value of the difference between the actual measured temperature t of the warm water and the target temperature T of the warm water is less than or equal to the temperature difference threshold C, the absolute value of the difference between the actual measured temperature t of the warm water and the target temperature T of the warm water is repeatedly compared with the temperature difference threshold C, so that the absolute value of the difference between the actual measured temperature t of the warm water and the target temperature T of the warm water is compared with the temperature difference threshold C to enter a self-circulation; If the absolute value of the difference between the actual measured warm water temperature t and the target warm water temperature T is greater than the temperature difference threshold C, the next actual opening degree B is adjusted according to the actual measured warm water temperature t. The next actual opening degree B is equal to the actual opening degree B of this time minus the absolute value of the actual opening degree B of the previous time, multiplied by the difference between the target warm water temperature T and the actual measured warm water temperature t of this time, and then divided by the value obtained by subtracting the absolute value of the actual measured warm water temperature t of this time from the actual measured warm water temperature t of the previous time, and then subtracted by the actual opening degree B of this time.

2. The control method of the automatic temperature regulating device of the drinking water equipment according to claim 1 is characterized in that Wait for n temperature measurement time intervals S, if the absolute value of the difference between the last measured warm water temperature t in the rapid mixing step and the warm water target temperature T is greater than the temperature difference threshold C, compare the last actual opening degree B in the rapid mixing step with the self-stored opening degree KM; If the actual opening degree B at this time is less than the self-stored opening degree KM, then return to the step of rapid mixing; If the actual opening degree B at this time is greater than or equal to the self-storage opening degree KM, the electronic control device 8 adjusts the actual opening degree B to the self-storage opening degree KM, and the water inlet and outlet ratio A is within the interval between the value 1 and the water inlet and outlet ratio threshold value A1, then returns to the step of rapid mixing; if the water inlet and outlet ratio A is outside the interval between the value 1 and the water inlet and outlet ratio threshold value A1, then returns to the step of starting the drinking water equipment.

3. The control method of the automatic temperature regulating device of the drinking water equipment according to claim 2 is characterized in that: If the actual opening degree B is equal to 1, and if the water inlet and outlet ratio A is between the value 1 and the water inlet and outlet ratio threshold value A1, then return to the step of rapid mixing; and if the water inlet and outlet ratio A is greater than the value 1, then return to the step of turning on the drinking water device; and if the water inlet and outlet ratio A is less than the water inlet and outlet ratio threshold value A1, then terminate the entire program.

4. The control method of the automatic temperature regulating device of the drinking water equipment according to claim 1 is characterized in that: A pressure stabilizing valve (13) is also provided on the warm water outlet pipe (4).

5. Automatic temperature control device for drinking water equipment, characterized in that: A control method for an automatic temperature regulating device for drinking water equipment using any one of claims 1-4.

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