CN105066460B

CN105066460B - Water temperature establishing method and water temperature setting device for hot water facility

Info

Publication number: CN105066460B
Application number: CN201510541547.7A
Authority: CN
Inventors: 周峰
Original assignee: Midea Group Co Ltd; Guangdong Midea HVAC Equipment Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea HVAC Equipment Co Ltd
Priority date: 2015-08-28
Filing date: 2015-08-28
Publication date: 2017-11-07
Anticipated expiration: 2035-08-28
Also published as: CN105066460A

Abstract

The invention provides a kind of water temperature establishing method and a kind of water temperature setting device, the water temperature establishing method includes：The target of hot water facility is set with water number, the target coolant-temperature gage of user according to the first setting command for receiving；Goal-setting water temperature with water parameter is determined with the current of coolant-temperature gage and hot water facility with water number, target according to target；Judge whether goal-setting water temperature belongs to set water temperature scope；When judging that goal-setting water temperature belongs to set water temperature scope, heated according to goal-setting water temperature；Set water temperature scope is not belonging in judgement goal-setting water temperature, and when judging that goal-setting water temperature is less than the minimum value of set water temperature scope, the minimum value of set water temperature scope is set to goal-setting water temperature, otherwise, the maximum of set water temperature scope is set to goal-setting water temperature and heated.It by technical scheme, can be heated according to the user's request adjust automatically set water temperature such as actual used water number, effectively ensure the regular supply of hot water.

Description

Water temperature setting method and water temperature setting device for hot water equipment

Technical Field

The invention relates to the technical field of household appliances, in particular to a water temperature setting method and a water temperature setting device for a hot water device.

Background

At present, the existing hot water equipment (such as a heat pump water heater) can be generally set with different set temperature values according to different environmental temperatures so as to meet daily household requirements.

However, when the guests come from the home and need a large amount of water, if the guests still operate at the original set temperature, the hot water is not enough. The set temperature value can be manually adjusted and increased, but the set temperature value cannot be accurately judged by the increase or decrease of the number of users. If the temperature adjustment is too high, energy waste will result, and if the temperature adjustment is too low, the user's demand cannot be satisfied.

Therefore, how to automatically adjust the set water temperature according to the actual water consumption number and other user demands to heat the water, so that the normal supply of hot water is effectively guaranteed, the user experience is improved, and meanwhile, the waste of energy is avoided.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art or the related art.

To this end, it is an object of the invention to propose a water temperature setting method for a hot water appliance.

Another object of the present invention is to provide a water temperature setting device for a hot water appliance.

To achieve at least one of the above objects, according to an embodiment of a first aspect of the present invention, there is provided a water temperature setting method for a hot water apparatus, including: setting the target number of the water consumption persons of the hot water equipment and the target water consumption temperature of the user according to the received first setting command; determining a target set water temperature according to the target number of people using water, the target water temperature and the current water using parameters of the hot water equipment; judging whether the target set water temperature belongs to a set water temperature range of the hot water equipment or not; when the target set water temperature is judged to belong to the set water temperature range, heating according to the target set water temperature; and when the target set water temperature is judged not to belong to the set water temperature range and is judged to be smaller than the minimum value of the set water temperature range, setting the minimum value of the set water temperature range as the target set water temperature and heating, and otherwise, setting the maximum value of the set water temperature range as the target set water temperature and heating.

According to the water temperature setting method for the hot water device of the embodiment of the invention, the target number of the water consumption of the hot water device and the target water temperature of the user are set by receiving the first setting command, for example, in the case that a guest at home or a family member goes out for a long time, the water consumption parameter of the water device can be adjusted to meet the actual demand of the user, so that the target set water temperature is automatically determined according to the target number of the water consumption, the target water temperature of the user and the current water consumption parameter of the hot water device, thereby effectively ensuring the normal supply of the hot water, wherein the current water consumption parameter of the hot water device can be preset by the user or can be a default value set when the hot water device leaves the factory, further, whether the target set water temperature is within the set water temperature range of the hot water device is judged, namely whether the target set water temperature exceeds the maximum value and the minimum value, if the target set water temperature is within the set water temperature range of the hot water device, that is, the target set water temperature is between the maximum value and the minimum value of the set water temperature of the hot water device, the hot water device can be directly heated according to the target set water temperature, otherwise, if the target set water temperature is greater than the maximum value of the set water temperature range or less than the minimum value of the set water temperature range, the maximum value or the minimum value of the set water temperature range can be set as the target set water temperature for heating, so that the heating temperature (namely the target set water temperature) is accurately controlled within the set water temperature range of the hot water device, the hot water device is prevented from being burnt out due to overhigh or overlow target set water temperature, the normal operation of the hot water device is ensured, the service life of a product is prolonged, energy waste can be.

In addition, when the maximum value or the minimum value of the set water temperature range is set as the target set water temperature, a prompt can be given to the user, for example, the user is prompted by voice to set the target set water temperature to the maximum value or the minimum value of the set water temperature range, so that the user can timely know the specific temperature value of the target set water temperature, the user can determine whether to readjust the water use parameter according to the prompt, and the user experience is improved.

The water temperature setting method for the water heating apparatus according to the above embodiment of the present invention may further have the following technical features:

according to one embodiment of the invention, the current water usage parameters include: the volume of the water tank, the current set water temperature, the current set number of people using water, the current water temperature and the current water temperature of the cold water pipe; and the water temperature setting method for the hot water apparatus further comprises: setting the water use appointment time according to the received second setting command; and heating according to the target set water temperature and the reserved water using time.

According to the water temperature setting method for the hot water apparatus of the embodiment of the invention, the current water use parameters include, but are not limited to: the volume of the water tank, the current set water temperature, the current set number of people using water, the current water temperature and the current water temperature of the cold water pipe, wherein the volume of the water tank is the inherent parameter of the hot water equipment, the current set water temperature, the current set number of people using water and the current water temperature can be the default value set according to the volume of the water tank or the value modified by the user according to the water usage habit, the current water temperature is the temperature of hot water actually used by a user (namely the temperature of the mixed hot water and cold water), the current water temperature of the cold water pipe is a real-time detection value, which is related to the current environmental conditions in which the hot water appliance is located, such as different seasons, different times of the day when the cold water pipe water temperature is detected as possibly different, therefore, the target set water temperature can be accurately and automatically adjusted according to the current water use parameters, the number of target water users and the target water use temperature of the users, and the user experience is improved.

In addition, when the target set water temperature is determined, the reserved water use time, namely the water use heating time preset by the user, can be set according to the received second set command, and then the water is heated according to the target set water temperature and the reserved water use time, so that the water use temperature can meet the use requirement of the user in the preset time, and the user experience is improved.

According to an embodiment of the present invention, the determining the target set water temperature according to the target number of people using water, the target water temperature and the current water usage parameter of the hot water device specifically includes: determining the need according to a preset cold water volume calculation formulaThe current cold water volume and the preset cold water volume calculation formula are as follows:wherein, V_CRepresents the current cold water volume, V_HRepresents the volume of the tank, T_SRepresenting said current set water temperature, T_YRepresents the current water temperature and T_JRepresenting the current cold water pipe water temperature detected; determining the target set water temperature according to a preset set water temperature calculation formula, wherein the preset set water temperature calculation formula is as follows:wherein, T_ZRepresenting the target set water temperature, N representing the current set water consumption number, and X representing the difference value between the target water consumption number and the current set water consumption number.

According to the water temperature setting method for the hot water apparatus of the embodiment of the present invention, hot water at the target water temperature of the user, i.e., the required (preset) cold water volume and the target set water temperature, can be obtained by mixing the preset volume of cold water with the hot water heated according to the target set water temperature, wherein the preset volume of cold water and the tank volume V_HCurrently set water temperature T_SAnd the current water temperature T_YIs proportional to the current water temperature T_YAnd the detected current cold water pipe water temperature T_JIs inversely proportional to the target water temperature T_ZThe number of people who use water (i.e. N + X) and the preset volume V of cold water_CAnd the volume V of the water tank_HAnd the current water temperature T_YAnd the detected current cold water pipe water temperature T_JThe difference of directly proportional to and with set for water number N at present and water tank volume inverse ratio, so, confirm the target according to target water number, target water temperature and hot-water heating equipment's current water parameter and set for the temperature, realized promptly according to user's demands such as actual water number automatic adjustment and set for the temperature and heat, thereby guarantee hydrothermal normal supply effectively, promote user experience.

According to an embodiment of the present invention, the heating according to the target set water temperature and the reserved water usage time specifically includes: and judging whether the water is heated to the target set water temperature within the reserved water using time, and determining whether to increase the heating power of the hot water equipment and/or start the electric auxiliary heat of the hot water equipment according to a judgment result.

According to the water temperature setting method for the hot water equipment, whether the heating task can be completed within the reserved water using time needs to be judged in real time or according to the preset period in the process of heating water to the target set water temperature, so that whether the heating power of the hot water equipment is increased and/or the electric auxiliary heat of the hot water equipment is started can be determined according to the judgment result, and therefore the situation that the water is not heated to the target set water temperature within the reserved water using time due to low heating power and the like can be effectively avoided, and the reliability and the user experience of the hot water equipment are improved.

According to an embodiment of the invention, the determining whether to heat to the target set water temperature within the reserved water usage time to determine whether to increase the heating power of the hot water device and/or turn on the electric auxiliary heating of the hot water device according to the determination result comprises: counting the accumulated heating time of the hot water equipment when the hot water equipment starts to heat to the current moment, and calculating to obtain the current time difference value between the reserved water consumption time and the accumulated heating time; judging whether the residual heating time from the current moment to the heating to the target set water temperature is less than or equal to the current time difference or not; and if so, heating according to the residual heating time, and otherwise, increasing the heating power of the hot water equipment and/or starting the electric auxiliary heat of the hot water equipment.

According to the water temperature setting method for the hot water equipment, whether the target set water temperature can be reached within the reserved water using time can be judged in real time or according to the preset period, and the method can be specifically realized by the following steps: the method comprises the steps of counting the accumulated heating time of the hot water device when the hot water device starts to heat to the current time, judging whether the residual heating time required by the current time until the hot water device heats to the target set water temperature is less than or equal to the current time difference between the reserved water time and the accumulated heating time, if so, indicating that the requirement of heating to the target set water temperature in the reserved water time can be met in the residual heating time, continuing heating, otherwise, indicating that the requirement of heating to the target set water temperature in the reserved time cannot be met in the residual heating time, and improving the heating efficiency by increasing the heating power of the hot water device and/or starting the electric auxiliary heating of the hot water device to ensure that the hot water can be heated to the target set water temperature in the reserved time, thereby effectively ensuring the normal supply of the hot water.

According to an embodiment of the present invention, the remaining heating time is calculated according to the following preset heating time formula:wherein H represents the remaining heating time, T_{Fruit of Chinese wolfberry}A real-time water temperature representing the current time detected, P representing the rated power of the water heating apparatus, T_{Ring (C)}Representing the current ambient temperature detected, and a, b, and c are constants.

According to the water temperature setting method for a water heating apparatus of the embodiment of the present invention, the remaining heating time required from the present time to the heating to the target set water temperature and the tank volume V_HTarget set water temperature T_ZAnd the real-time water temperature T of the current time_{Fruit of Chinese wolfberry}Is proportional to the difference of (a) and is proportional to the rated power P of the water heating apparatus, the current ambient temperature T_{Ring (C)}In inverse proportion, wherein the real-time water temperature T at the current time_{Fruit of Chinese wolfberry}The temperature value can be one temperature value or an average value of a plurality of temperature values, a, b and c are constants, generally, the values of a, b and c are respectively 7, 150 and 20, and can be adjusted according to actual conditions, so that the residual heating time can be accurately acquired in real time, the accuracy of judging whether the heating task can be completed within the reserved water using time is improved, and the normal supply of hot water is effectively ensured.

According to an embodiment of the present invention, before the setting of the target number of the water usage of the hot water apparatus and the target water usage temperature of the user according to the received first setting command, the method further comprises: if the starting operation of the hot water equipment is yes, determining whether a target working mode of the hot water equipment is started; and when the target water consumption number and the target water consumption temperature are determined to be started, the step of setting the target water consumption number and the target water consumption temperature is executed, otherwise, heating is carried out according to a default working mode.

According to the water temperature setting method for the water heating device, when the target working mode (such as a customer waiting mode) of the water using device is judged to be started, the steps of confirming or modifying the target number of the water using persons of the water heating device and the target water using temperature of the user according to the requirements of the user are carried out to determine the target set water temperature, otherwise, heating is carried out according to the default working mode (water using parameters) set according to the volume of the water tank or the water using habits of the user, and the power consumption of the device can be reduced.

According to an embodiment of the second aspect of the present invention, there is provided a water temperature setting device for a hot water apparatus, including: the setting module is used for setting the target number of the water consumption of the hot water equipment and the target water consumption temperature of the user according to the received first setting command; the determining module is used for determining a target set water temperature according to the target water consumption number, the target water consumption temperature and the current water consumption parameters of the hot water equipment; the first judgment module is used for judging whether the target set water temperature belongs to the set water temperature range of the hot water equipment or not; the control module is used for controlling heating according to the target set water temperature when the target set water temperature is judged to belong to the set water temperature range; and the control module is further configured to: and when the target set water temperature is judged not to belong to the set water temperature range and is judged to be smaller than the minimum value of the set water temperature range, controlling the minimum value of the set water temperature range to be set as the target set water temperature and heating, and otherwise, controlling the maximum value of the set water temperature range to be set as the target set water temperature and heating.

According to the water temperature setting device for the hot water equipment of the embodiment of the invention, the target number of the water consumption of the hot water equipment and the target water temperature of the user are set by receiving the first setting command, for example, in the case that a guest at home or a family member goes out for a long time, the water consumption parameter of the water equipment can be adjusted to meet the actual demand of the user, so that the target set water temperature is automatically determined according to the target number of the water consumption, the target water temperature of the user and the current water consumption parameter of the hot water equipment, thereby effectively ensuring the normal supply of the hot water, wherein the current water consumption parameter of the hot water equipment can be preset by the user or can be a default value set when the hot water equipment leaves a factory, further, whether the target set water temperature is within the set water temperature range of the hot water equipment is judged, namely whether the target set water temperature exceeds the maximum value and the minimum value, if the target set water temperature is within the set water temperature range of the hot water device, that is, the target set water temperature is between the maximum value and the minimum value of the set water temperature of the hot water device, the hot water device can be directly heated according to the target set water temperature, otherwise, if the target set water temperature is greater than the maximum value of the set water temperature range or less than the minimum value of the set water temperature range, the maximum value or the minimum value of the set water temperature range can be set as the target set water temperature for heating, so that the heating temperature (namely the target set water temperature) is accurately controlled within the set water temperature range of the hot water device, the hot water device is prevented from being burnt out due to overhigh or overlow target set water temperature, the normal operation of the hot water device is ensured, the service life of a product is prolonged, energy waste can be.

According to one embodiment of the invention, the current water usage parameters include: the volume of the water tank, the current set water temperature, the current set number of people using water, the current water temperature and the current water temperature of the cold water pipe; and the setting module is further configured to: setting the water use appointment time according to the received second setting command; the control module is further configured to: and heating according to the target set water temperature and the reserved water using time.

According to the water temperature setting device for the hot water apparatus of the embodiment of the invention, the current water use parameters include but are not limited to: the volume of the water tank, the current set water temperature, the current set number of people using water, the current water temperature and the current water temperature of the cold water pipe, wherein the volume of the water tank is the inherent parameter of the hot water equipment, the current set water temperature, the current set number of people using water and the current water temperature can be the default value set according to the volume of the water tank or the value modified by the user according to the water usage habit, the current water temperature is the temperature of hot water actually used by a user (namely the temperature of the mixed hot water and cold water), the current water temperature of the cold water pipe is a real-time detection value, which is related to the current environmental conditions in which the hot water appliance is located, such as different seasons, different times of the day when the cold water pipe water temperature is detected as possibly different, therefore, the target set water temperature can be accurately and automatically adjusted according to the current water use parameters, the number of target water users and the target water use temperature of the users, and the user experience is improved.

In addition, when the target set water temperature is determined, the reserved water use time, namely the water use heating time preset by the user, can be set according to the received second set command, and then the water is heated according to the target set water temperature and the reserved water use time, so that the water use temperature can meet the use requirement of the user in the preset time, and the user experience is improved. According to an embodiment of the present invention, the determining module specifically includes: the first calculation module is used for determining the required current cold water volume according to a preset cold water volume calculation formula, and the preset cold water volume calculation formula is as follows:wherein, V_CRepresents the current cold water volume, V_HRepresents the volume of the tank, T_SRepresenting said current set water temperature, T_YRepresents the current water temperature and T_JRepresenting the current cold water pipe water temperature detected; the second calculation module is used for determining the target set water temperature according to a preset set water temperature calculation formula, and the preset set water temperature calculation formula is as follows:wherein, T_ZRepresenting the target set water temperature, N representing the current set water consumption number, and X representing the difference value between the target water consumption number and the current set water consumption number.

According to the water temperature setting apparatus for a hot water appliance of the embodiment of the present invention, hot water at a target water temperature of a user, that is, a required (preset) cold water volume and a target set water temperature, can be obtained by mixing a preset volume of cold water with hot water heated according to the target set water temperature, wherein the preset volume of cold water and a tank volume V_HCurrently set water temperature T_SAnd the current water temperature T_YIs proportional to the current water temperature T_YAnd the detected current cold water pipe water temperature T_JIs inversely proportional to the target water temperature T_ZThe number of people who use water (i.e. N + X) and the preset volume V of cold water_CAnd the volume V of the water tank_HAnd the current water temperature T_YAnd the detected current cold water pipe water temperature T_JThe difference of directly proportional to and with set for water number N at present and water tank volume inverse ratio, so, confirm the target according to target water number, target water temperature and hot-water heating equipment's current water parameter and set for the temperature, realized promptly according to user's demands such as actual water number automatic adjustment and set for the temperature and heat, thereby guarantee hydrothermal normal supply effectively, promote user experience.

According to an embodiment of the present invention, the control module specifically includes: and the second judgment module is used for judging whether the water is heated to the target set water temperature within the reserved water using time, and determining whether to increase the heating power of the hot water equipment and/or start the electric auxiliary heat of the hot water equipment according to a judgment result.

According to the water temperature setting device for the hot water equipment, in the process of heating water to the target set water temperature, whether the heating task can be completed within the reserved water use time needs to be judged in real time or according to the preset period, so that whether the heating power of the hot water equipment is increased and/or the electric auxiliary heat of the hot water equipment is started can be determined according to the judgment result, and therefore the situation that the water is not heated to the target set water temperature within the reserved water use time due to low heating power and the like can be effectively avoided, and the reliability and the user experience of the hot water equipment are improved.

According to an embodiment of the present invention, the control module further includes: the statistical module is used for counting the accumulated heating time of the hot water equipment from beginning to heating to the current moment and calculating to obtain the current time difference value of the reserved water consumption time and the accumulated heating time; the second judging module is further configured to: judging whether the residual heating time from the current moment to the heating to the target set water temperature is less than or equal to the current time difference or not; and the operation module is used for heating according to the residual heating time when the judgment result is yes, and otherwise, increasing the heating power of the hot water equipment and/or starting the electric auxiliary heat of the hot water equipment.

The water temperature setting device for a hot water apparatus according to an embodiment of the present invention, which determines whether the target set water temperature can be reached within the reserved water usage time in real time or according to a preset period, may specifically be implemented as follows: the method comprises the steps of counting the accumulated heating time of the hot water device when the hot water device starts to heat to the current time, judging whether the residual heating time required by the current time until the hot water device heats to the target set water temperature is less than or equal to the current time difference between the reserved water time and the accumulated heating time, if so, indicating that the requirement of heating to the target set water temperature in the reserved water time can be met in the residual heating time, continuing heating, otherwise, indicating that the requirement of heating to the target set water temperature in the reserved time cannot be met in the residual heating time, and improving the heating efficiency by increasing the heating power of the hot water device and/or starting the electric auxiliary heating of the hot water device to ensure that the hot water can be heated to the target set water temperature in the reserved time, thereby effectively ensuring the normal supply of the hot water.

According to one embodiment of the invention, the control module further comprises: the third calculating module is used for calculating the residual heating time according to the following preset heating time formula:wherein H represents the remaining heating time, T_{Fruit of Chinese wolfberry}A real-time water temperature representing the current time detected, P representing the rated power of the water heating apparatus, T_{Ring (C)}Representing the current ambient temperature detected, and a, b, and c are constants.

According to the water temperature setting apparatus for a hot water appliance of the embodiment of the present invention, the remaining heating time required from the present time to the heating to the target set water temperature and the tank volume V_HTarget set water temperature T_ZAnd the real-time water temperature T of the current time_{Fruit of Chinese wolfberry}Is proportional to the difference of (a) and is proportional to the rated power P of the water heating apparatus, the current ambient temperature T_{Ring (C)}In inverse proportion, wherein the real-time water temperature T at the current time_{Fruit of Chinese wolfberry}The temperature value can be one temperature value or an average value of a plurality of temperature values, a, b and c are constants, generally, the values of a, b and c are respectively 7, 150 and 20, and can be adjusted according to actual conditions, so that the residual heating time can be accurately acquired in real time, the accuracy of judging whether the heating task can be completed within the reserved water using time is improved, and the normal supply of hot water is effectively ensured.

According to an embodiment of the present invention, the mobile terminal further includes a starting module, and the starting module is specifically configured to: when the hot water equipment is started to operate, determining whether a target working mode of the hot water equipment is started or not; and when the target water consumption number and the target water consumption temperature are determined to be started, the step of setting the target water consumption number and the target water consumption temperature is executed, otherwise, heating is carried out according to a default working mode.

According to the water temperature setting device for the water heating equipment, when the target working mode (such as a customer waiting mode) of the water using equipment is judged to be started, the steps of confirming or modifying the target number of the water using people of the water heating equipment and the target water using temperature of the user according to the requirements of the user are carried out to determine the target set water temperature, otherwise, heating is carried out according to the default working mode (water using parameters) set according to the volume of the water tank or the water using habit of the user, and the power consumption of the equipment can be reduced.

According to an embodiment of the third aspect of the present invention, there is provided a water heating apparatus, including the water temperature setting device for a water heating apparatus according to any one of the above technical solutions, so that the water heating apparatus has the same technical effects as the water temperature setting device for a water heating apparatus according to any one of the above technical solutions, and details thereof are omitted here.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a flowchart illustrating a water temperature setting method for a hot water apparatus according to an embodiment of the present invention;

FIG. 2 shows a block diagram of a water temperature setting device for a hot water appliance according to an embodiment of the present invention;

FIG. 3 shows a block diagram of a hot water appliance according to an embodiment of the invention;

fig. 4 is a flowchart illustrating a water temperature setting method for a hot water apparatus according to another embodiment of the present invention.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

Fig. 1 shows a flow chart of a water temperature setting method for a hot water apparatus according to an embodiment of the present invention.

As shown in fig. 1, a water temperature setting method for a hot water apparatus according to an embodiment of the present invention includes: 102, setting the target number of the water consumption of the hot water equipment and the target water consumption temperature of a user according to the received first setting command; 104, determining a target set water temperature according to the target number of people using water, the target water temperature and the current water using parameters of the hot water equipment; step 106, judging whether the target set water temperature belongs to the set water temperature range of the hot water equipment, if so, executing step 108, otherwise, executing step 110; 108, when the target set water temperature is judged to belong to the set water temperature range, heating according to the target set water temperature; and 110, when the target set water temperature is judged not to belong to the set water temperature range and is judged to be smaller than the minimum value of the set water temperature range, setting the minimum value of the set water temperature range as the target set water temperature and heating, and otherwise, setting the maximum value of the set water temperature range as the target set water temperature and heating.

According to an embodiment of the present invention, the step 104 specifically includes: determining the required current cold water volume according to a preset cold water volume calculation formula, wherein the preset cold water volume calculation formula is as follows:wherein, V_CRepresents the current cold water volume, V_HRepresents the volume of the tank, T_SRepresenting said current set water temperature, T_YRepresents the current water temperature and T_JRepresenting the current cold water pipe water temperature detected; determining the target set water temperature according to a preset set water temperature calculation formula, wherein the preset set water temperature calculation formula is as follows:wherein, T_ZRepresenting the target set water temperature, N representing the current set water consumption number, and X representing the difference value between the target water consumption number and the current set water consumption number.

According to the water temperature setting method for the hot water apparatus of the embodiment of the present invention, hot water at the target water temperature of the user, i.e., the required (preset) cold water volume and the target set water temperature, can be obtained by mixing the preset volume of cold water with the hot water heated according to the target set water temperature, wherein the preset volume of cold water and the tank volume V_HCurrently set water temperature T_SAnd the current water temperature T_YIs proportional to the current water temperature T_YAnd the detected current cold water pipe water temperature T_JIs inversely proportional to the target water temperature T_ZThe number of people who use water (i.e. N + X) and the preset volume V of cold water_CAnd the volume V of the water tank_HAnd the current water temperature T_YAnd the detected current cold water pipe water temperature T_JIs proportional to the current number of the target users, and is inversely proportional to the current number of the target users and the volume of the water tank, so that the target set water temperature is determined according to the target number of the target users, the target water temperature and the current water consumption parameters of the hot water equipment, namely the target set water temperature is realThe water temperature is automatically adjusted and set according to the user demands such as the number of actual water consumption people, and the like, so that the normal supply of hot water is effectively guaranteed, and the user experience is improved.

According to the water temperature setting method for a water heating apparatus of the embodiment of the present invention, the remaining heating time required from the present time to the heating to the target set water temperature and the tank volume V_HTarget set water temperature T_ZAnd the real-time water temperature T of the current time_{Fruit of Chinese wolfberry}Is proportional to the difference of (a) and is proportional to the rated power P of the water heating apparatus, the current ambient temperature T_{Ring (C)}In inverse proportion, wherein the real-time water temperature T at the current time_{Fruit of Chinese wolfberry}The value of a, b, and c may be a constant value or an average value of a plurality of temperature values, generally, the values of a, b, and c are respectively 7, 150, and 20, and may be adjusted according to actual conditions, so that the value can be accurately obtained in real timeThe residual heating time improves the accuracy of judging whether the heating task can be completed within the reserved water using time, thereby effectively ensuring the normal supply of hot water.

Fig. 2 shows a block diagram of a water temperature setting apparatus for a hot water appliance according to an embodiment of the present invention.

As shown in fig. 2, a water temperature setting apparatus 200 for a hot water appliance according to an embodiment of the present invention includes: the setting module 202 is used for setting the target number of the water consumption of the hot water equipment and the target water consumption temperature of the user according to the received first setting command; the determining module 204 is used for determining a target set water temperature according to the target water consumption number, the target water consumption temperature and the current water consumption parameters of the hot water equipment; a first judging module 206, configured to judge whether the target set water temperature belongs to a set water temperature range of the hot water apparatus; the control module 208 is configured to control heating according to the target set water temperature when it is determined that the target set water temperature belongs to the set water temperature range; and the control module 208 is further configured to: and when the target set water temperature is judged not to belong to the set water temperature range and is judged to be smaller than the minimum value of the set water temperature range, controlling the minimum value of the set water temperature range to be set as the target set water temperature and heating, and otherwise, controlling the maximum value of the set water temperature range to be set as the target set water temperature and heating.

According to the water temperature setting apparatus 200 for a water heating device of the embodiment of the invention, a target number of water consumption persons of the water heating device and a target water temperature of a user are set by receiving a first setting command, for example, in the case that a guest at home or a family member goes out for a long time, a water consumption parameter of the water heating device can be adjusted to meet an actual demand of the user, so that a target set water temperature is automatically determined according to the target number of water consumption persons, the target water temperature of the user and a current water consumption parameter of the water heating device, thereby effectively ensuring normal supply of hot water, wherein the current water consumption parameter of the water heating device can be preset by the user or can be a default value set when the water heating device leaves a factory, further, whether the target set water temperature is within a set water temperature range of the water heating device is judged, namely whether the target set water temperature exceeds a maximum value and a minimum value of, if the target set water temperature is within the set water temperature range of the hot water device, that is, the target set water temperature is between the maximum value and the minimum value of the set water temperature of the hot water device, the hot water device can be directly heated according to the target set water temperature, otherwise, if the target set water temperature is greater than the maximum value of the set water temperature range or less than the minimum value of the set water temperature range, the maximum value or the minimum value of the set water temperature range can be set as the target set water temperature for heating, so that the heating temperature (namely the target set water temperature) is accurately controlled within the set water temperature range of the hot water device, the hot water device is prevented from being burnt out due to overhigh or overlow target set water temperature, the normal operation of the hot water device is ensured, the service life of a product is prolonged, energy waste can be.

According to one embodiment of the invention, the current water usage parameters include: the volume of the water tank, the current set water temperature, the current set number of people using water, the current water temperature and the current water temperature of the cold water pipe; and the setup module 202 is further configured to: setting the water use appointment time according to the received second setting command; the control module 208 is further configured to: and heating according to the target set water temperature and the reserved water using time.

According to the water temperature setting device 200 for a hot water apparatus of the embodiment of the present invention, the current water usage parameters include, but are not limited to: the volume of the water tank, the current set water temperature, the current set number of people using water, the current water temperature and the current water temperature of the cold water pipe, wherein the volume of the water tank is the inherent parameter of the hot water equipment, the current set water temperature, the current set number of people using water and the current water temperature can be the default value set according to the volume of the water tank or the value modified by the user according to the water usage habit, the current water temperature is the temperature of hot water actually used by a user (namely the temperature of the mixed hot water and cold water), the current water temperature of the cold water pipe is a real-time detection value, which is related to the current environmental conditions in which the hot water appliance is located, such as different seasons, different times of the day when the cold water pipe water temperature is detected as possibly different, therefore, the target set water temperature can be accurately and automatically adjusted according to the current water use parameters, the number of target water users and the target water use temperature of the users, and the user experience is improved.

According to an embodiment of the present invention, the determining module 204 specifically includes: the first calculating module 2042 is configured to determine a required current cold water volume according to a preset cold water volume calculation formula, where the preset cold water volume calculation formula is:wherein, V_CRepresents the current cold water volume, V_HRepresents the volume of the tank, T_SRepresenting said current set water temperature, T_YRepresents the current water temperature and T_JRepresenting the current cold water pipe water temperature detected; the second calculation module is used for determining the target set water temperature according to a preset set water temperature calculation formula, and the preset set water temperature calculation formula is as follows:wherein, T_ZRepresenting the target set water temperature, N representing the current set water consumption number, and X representing the difference value between the target water consumption number and the current set water consumption number.

According to the water temperature setting apparatus 200 for a hot water appliance of the embodiment of the present invention, hot water of a target water temperature of a user, i.e., a required (preset) cold water volume and a target set water temperature, can be obtained by mixing a preset volume of cold water with hot water heated according to the target set water temperature, wherein the preset volume of cold water and a tank volume V_HCurrently set water temperature T_SAnd the current water temperature T_YIs proportional to the current water temperature T_YAnd the detected current cold water pipe water temperature T_JIs inversely proportional to the target water temperature T_ZThe number of people who use water (i.e. N + X) and the preset volume V of cold water_CAnd the volume V of the water tank_HAnd the current water temperature T_YAnd the detected current cold water pipe water temperature T_JIs proportional to the difference value of the water consumption amount and is inversely proportional to the number N of the currently set water consumption amount and the volume of the water tank, so that the water consumption amount is used according to the targetThe number of water users, the target water temperature and the current water use parameters of the hot water equipment determine the target set water temperature, so that the water temperature can be automatically adjusted and set according to the user requirements such as the actual number of water users and the like to heat, the normal supply of hot water is effectively guaranteed, and the user experience is improved.

According to an embodiment of the present invention, the control module 208 specifically includes: the second judging module 2082 is configured to judge whether to heat to the target set water temperature within the reserved water usage time, and determine whether to increase the heating power of the hot water apparatus and/or turn on the electric auxiliary heat of the hot water apparatus according to a judgment result.

According to the water temperature setting device 200 for the hot water apparatus of the embodiment of the invention, in the process of heating water to the target set water temperature, whether the heating task can be completed within the reserved water usage time needs to be judged in real time or according to the preset period, so that whether the heating power of the hot water apparatus is increased and/or the electric auxiliary heat of the hot water apparatus is turned on can be determined according to the judgment result, thus, the situation that the water is not heated to the target set water temperature within the reserved water usage time due to low heating power and the like can be effectively avoided, and the reliability and the user experience of the hot water apparatus are improved.

According to an embodiment of the present invention, the control module 208 further includes: the counting module 2084 is used for counting the accumulated heating time when the hot water equipment starts to heat to the current moment, and calculating to obtain the current time difference value between the reserved water consumption time and the accumulated heating time; the second determination module 2082 is further configured to: judging whether the residual heating time from the current moment to the heating to the target set water temperature is less than or equal to the current time difference or not; and an operation module 2086, configured to heat according to the remaining heating time if the determination result is yes, and otherwise, increase the heating power of the hot water apparatus and/or turn on the electric auxiliary heat of the hot water apparatus.

The water temperature setting device 200 for a hot water apparatus according to an embodiment of the present invention, which determines whether the target set water temperature can be reached within the reserved water usage time in real time or according to a preset period, may specifically be implemented as follows: the method comprises the steps of counting the accumulated heating time of the hot water device when the hot water device starts to heat to the current time, judging whether the residual heating time required by the current time until the hot water device heats to the target set water temperature is less than or equal to the current time difference between the reserved water time and the accumulated heating time, if so, indicating that the requirement of heating to the target set water temperature in the reserved water time can be met in the residual heating time, continuing heating, otherwise, indicating that the requirement of heating to the target set water temperature in the reserved time cannot be met in the residual heating time, and improving the heating efficiency by increasing the heating power of the hot water device and/or starting the electric auxiliary heating of the hot water device to ensure that the hot water can be heated to the target set water temperature in the reserved time, thereby effectively ensuring the normal supply of the hot water.

According to an embodiment of the invention, the control module 208 further comprises: a third calculating module 2088, configured to calculate the remaining heating time according to the following preset heating time formula:wherein H represents the remaining heating time, T_{Fruit of Chinese wolfberry}Real-time water temperature, T, representative of said current time detected_{Ring (C)}Representing the current ambient temperature detected, and a, b, and c are constants.

According to the water temperature setting device 200 for a hot water apparatus of the embodiment of the present invention, the remaining heating time required to heat to the target set water temperature from the present time and the tank volume V_HTarget set water temperature T_ZAnd the real-time water temperature T of the current time_{Fruit of Chinese wolfberry}Is proportional to the difference of (a) and is proportional to the rated power P of the water heating apparatus, the current ambient temperature T_{Ring (C)}In inverse proportion, wherein the real-time water temperature T at the current time_{Fruit of Chinese wolfberry}The temperature value may be one temperature value or an average value of a plurality of temperature values, and a, b, and c are constants, and generally, the values of a, b, and c are respectively 7, 150, and 20, and may be adjusted according to actual conditions, so that the actual values can be obtainedThe residual heating time is accurately acquired, and the accuracy of judging whether the heating task can be completed within the reserved water using time is improved, so that the normal supply of hot water is effectively ensured.

According to an embodiment of the present invention, further comprising: a prompting module 210, configured to prompt the user when the minimum value or the maximum value of the set water temperature range is used as the target set water temperature.

Fig. 3 shows a block diagram of a hot water apparatus according to an embodiment of the invention.

As shown in fig. 3, the water heating apparatus 300 according to an embodiment of the present invention includes the water temperature setting device 200 for a water heating apparatus according to any one of the above-mentioned technical solutions, and therefore, the water heating apparatus 300 has the same technical effects as the water temperature setting device 200 for a water heating apparatus according to any one of the above-mentioned technical solutions, and will not be described again here.

As shown in fig. 4, according to the technical solution of the present invention, a water heating apparatus (such as a heat pump water heater) may include: the system comprises a guest waiting mode (target working mode) and a normal mode (default working mode) which are independent of each other, wherein in the guest waiting mode, a user can modify the number of people using water according to actual needs, and the current water temperature T of the cold water pipe can be detected_J. The specific operating logic is as follows:

(1) and determining whether the guest waiting mode is started, namely the guest waiting mode needs to be actively started by a user, and if the guest waiting mode is not started, the hot water equipment always operates according to a normal mode.

(2) When the user starts the guest waiting mode, the user may be prompted to confirm or modify the relevant parameters (current water usage parameters), such as: current set temperature T_S(current set water temperature), namely the temperature set by the current user, and if the temperature is not set, the current default set temperature of the hot water equipment is set; temperature T of water for user_Y(current water temperature), namely the temperature of the hot water actually used by the user is the temperature of the mixed hot water and cold water; the number of standard users N (the number of currently set water users, unit: number) is the number of users before the family has no visitor, and if the number of the users is not set, the number is the default water use parameter when the hot water equipment leaves the factory.

Generally, the water heating apparatus will depend on the tank volume V_HThe default relevant parameters of the water tank with default values, such as 300L, are respectively: the current set temperature is 50 ℃, the standard number of users is 6, the water temperature of users is 35 ℃, and the users can modify the water temperature according to the water habit.

(3) After the parameters are confirmed or modified, the user is prompted to input the number X of the user guests (the difference between the target water consumption number and the current set water consumption number, unit: number), and the positive number or the negative number can be selected. For example, if the user selects +1, the representative number of the users increases by one from the standard number of the users, and if the user selects-1, the representative number of the users decreases by one from the standard number of the users. The number of options available for a typical hot water appliance may be limited, such as 2, or unlimited. In addition, when the water heating equipment runs in a normal mode in normal operation, the guest waiting mode is invalid.

(4) According to the relevant parameters set in the step (3), the set water temperature (namely the target set water temperature) is automatically adjusted, and particularly, the volume V of cold water needing to be mixed when the number of people using the standard water is standard can be known_C(current cold water volume, unit: L), can be based on the formulaCalculating to obtain that when the number of guests is X, the set water temperature T is automatically adjusted_ZCan be according to the formula Is calculated, wherein V_HRepresents the volume (unit: L), T, of the water tank_SThe water temperature is set when representing the number of standard water users (namely the current set water temperature, unit:. degree. C.), and T_YRepresents the water temperature (current water temperature, unit:. degree. C.) for the user, T_JRepresents the detected water temperature of the cold water pipe (the current water temperature of the cold water pipe, unit: ℃, N represents the number of standard water users (the number of current set water users, unit: number), and X represents the number of guests (the difference between the number of target water users and the number of current set water users, unit: number).

For example: 300L of water tank, the number N of standard water consumption is 6, and the set temperature T_SAt 50 deg.C, water temperature T for user_YThe temperature of the cold water pipe is 35 ℃ and T_JAt 10 deg.C, V can be calculated according to the cold water volume calculation formula_CIf a guest needs water at home, that is, if X is 1, then T can be calculated according to the set water temperature calculation formula_Z56.6 ℃, which means that when the number of the target users is 6, the target set temperature is increased to 56.6 ℃, that is, the target user is one guest, the set temperature of the water tank is increased to 56.6 ℃, when the number of the guest is increased to 2 or 3, and so on.

When one person in the house cannot return to the household water at present, namely X is equal to-1, T can be calculated according to the formula_ZWhen the number of the standard water users is less than 43.3 ℃, namely one person uses less water, the set temperature of the water tank is reduced to 43.3 ℃, when the number of the standard water users is less than 2 to 3, the rest can be done, and the like, preferably T_ZThe temperature values of (a) may be taken as integers, rounded off according to one digit after the decimal point.

In addition, the water heating equipment may set a set water temperature range when the water heating equipment is shipped from a factory, or the water temperature range may be set by a user, for example, the set water temperature range of the water heating equipment is 35 to 70 ℃.

(5) Determining the adjusted set temperature T_ZWhether the temperature exceeds a critical value (a set water temperature range) or not, wherein the critical value refers to a critical value of temperature set by a user, and the equipment is generally solidified when being shipped, for example, the critical value of some equipment is 35-70 ℃.

(6) When the set temperature T is determined_ZWhen the temperature exceeds the critical value, the operation is carried out according to the maximum value or the minimum value corresponding to the critical value (namely, the operation is carried out as the target set water temperature), and at the moment, a user needs to be prompted that the temperature cannot be calculated according to the set temperature T due to the critical value of the water heating equipment model system_ZRunning; otherwise, if the set temperature T is determined_ZBelonging to a critical value, the temperature can be directly calculated according to the set temperature T_ZHeating is carried out.

(7) Further, it is judged that the heating can be completed within the reserved water using time, that is, the heating is carried out to the set temperature T_ZIn particular, it can be according to the formulaThe time H (residual heating time, unit: hour) required for completing heating is calculated, P represents the rated heating capacity of the heat pump (namely the rated power of the water heating equipment), and T_{Fruit of Chinese wolfberry}Representing the real-time water temperature in the water tank (when a plurality of real-time water temperatures are detected, the average value is in DEG C), T_{Ring (C)}Representing the detected current environment temperature (unit:. degree. C), and a, b and c are constants, generally, the values of a, b and c are respectively 7, 150 and 20, and can be adjusted according to the actual situation.

For example, setting the time difference Y between the current water use reservation time and the cumulative heating time (namely the current time difference between the water use reservation time and the cumulative heating time, unit: hour), and when H is less than or equal to Y, heating normally according to H; and when H is larger than Y, increasing the heat pump power (heating power) of the water heating equipment, and turning on the electric auxiliary heat, or turning on the larger electric auxiliary heat, and the like.

The technical scheme of the invention is explained in detail by combining the drawings, and the set water temperature can be automatically adjusted according to the user requirements such as the actual water consumption number and the like to heat, so that the normal supply of hot water is effectively ensured, the user experience is improved, and the energy waste is avoided.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A water temperature setting method for a hot water appliance, comprising:

setting the target number of the water consumption persons of the hot water equipment and the target water consumption temperature of the user according to the received first setting command;

determining a target set water temperature according to the target number of people using water, the target water temperature and the current water using parameters of the hot water equipment;

judging whether the target set water temperature belongs to a set water temperature range of the hot water equipment or not;

when the target set water temperature is judged to belong to the set water temperature range, heating according to the target set water temperature;

when the target set water temperature is judged not to belong to the set water temperature range and the target set water temperature is judged to be smaller than the minimum value of the set water temperature range, setting the minimum value of the set water temperature range as the target set water temperature and heating, and otherwise, setting the maximum value of the set water temperature range as the target set water temperature and heating;

the current water usage parameters include: the volume of the water tank, the current set water temperature, the current set number of people using water, the current water temperature and the current water temperature of the cold water pipe; and

the determining the target set water temperature according to the target number of people using water, the target water temperature and the current water using parameters of the hot water equipment specifically comprises:

determining the required current cold water volume according to a preset cold water volume calculation formula, wherein the preset cold water volume calculation formula is as follows:wherein,

V_Crepresents the current cold water volume, V_HRepresents the volume of the tank, T_SRepresenting said current set water temperature, T_YRepresents the current water temperature and T_JRepresenting the current cold water pipe water temperature detected;

determining the target set water temperature according to a preset set water temperature calculation formula, wherein the preset set water temperature calculation formula is as follows:wherein,

T_Zrepresenting the target set water temperature, N representing the current set water consumption number, and X representing the difference value between the target water consumption number and the current set water consumption number.

2. The water temperature setting method for a water heating apparatus according to claim 1,

further comprising:

setting the water use appointment time according to the received second setting command;

and heating according to the target set water temperature and the reserved water using time.

3. A water temperature setting method for a water heating apparatus according to claim 2, wherein the heating according to the target set water temperature and the reserved water use time specifically includes:

and judging whether the water is heated to the target set water temperature within the reserved water using time, and determining whether to increase the heating power of the hot water equipment and/or start the electric auxiliary heat of the hot water equipment according to a judgment result.

4. A water temperature setting method for a water heating apparatus according to claim 3, wherein the judging whether to heat to the target set water temperature within the reserved water usage time to determine whether to increase the heating power of the water heating apparatus and/or turn on an electric auxiliary heating device of the water heating apparatus according to the judgment result comprises:

counting the accumulated heating time of the hot water equipment when the hot water equipment starts to heat to the current moment, and calculating to obtain the current time difference value between the reserved water consumption time and the accumulated heating time;

judging whether the residual heating time from the current moment to the heating to the target set water temperature is less than or equal to the current time difference or not; and

and if so, heating according to the residual heating time, and otherwise, increasing the heating power of the hot water equipment and/or starting the electric auxiliary heat of the hot water equipment.

5. A water temperature setting method for a water heating apparatus according to claim 4, wherein the remaining heating time is calculated according to the following preset heating time formula:

wherein H represents the remaining heating time, T_{Fruit of Chinese wolfberry}A real-time water temperature representing the current time detected, P representing the rated power of the water heating apparatus, T_{Ring (C)}Representing the current ambient temperature detected, and a, b, and c are constants.

6. A water temperature setting method for a water heating apparatus according to any one of claims 1 to 5, characterized by further comprising, before said setting of the target number of persons using water of the water heating apparatus, the target water temperature of the user according to the received first setting command:

when the hot water equipment is started to operate, determining whether a target working mode of the hot water equipment is started or not;

and when the target water consumption number and the target water consumption temperature are determined to be started, the step of setting the target water consumption number and the target water consumption temperature is executed, otherwise, heating is carried out according to a default working mode.

7. A water temperature setting device for a hot water appliance, comprising:

the setting module is used for setting the target number of the water consumption of the hot water equipment and the target water consumption temperature of the user according to the received first setting command;

the determining module is used for determining a target set water temperature according to the target water consumption number, the target water consumption temperature and the current water consumption parameters of the hot water equipment;

the first judgment module is used for judging whether the target set water temperature belongs to the set water temperature range of the hot water equipment or not;

the control module is used for controlling heating according to the target set water temperature when the target set water temperature is judged to belong to the set water temperature range; and

the control module is further configured to: when the target set water temperature is judged not to belong to the set water temperature range and is judged to be smaller than the minimum value of the set water temperature range, controlling the minimum value of the set water temperature range to be set as the target set water temperature and heating, and otherwise, controlling the maximum value of the set water temperature range to be set as the target set water temperature and heating;

the determining module specifically includes:

the first calculation module is used for determining the required current cold water volume according to a preset cold water volume calculation formula, and the preset cold water volume calculation formula is as follows:wherein,

the second calculation module is used for determining the target set water temperature according to a preset set water temperature calculation formula, and the preset set water temperature calculation formula is as follows:wherein,

8. Water temperature setting device for a hot water appliance according to claim 7,

the setup module is further configured to: setting the water use appointment time according to the received second setting command;

the control module is further configured to: and heating according to the target set water temperature and the reserved water using time.

9. A water temperature setting device for a water heating apparatus as claimed in claim 8, wherein the control module comprises:

and the second judgment module is used for judging whether the water is heated to the target set water temperature within the reserved water using time, and determining whether to increase the heating power of the hot water equipment and/or start the electric auxiliary heat of the hot water equipment according to a judgment result.

10. The water temperature setting device for a water heating apparatus as recited in claim 9, wherein the control module further comprises:

the statistical module is used for counting the accumulated heating time of the hot water equipment from beginning to heating to the current moment and calculating to obtain the current time difference value of the reserved water consumption time and the accumulated heating time;

the second judging module is further configured to: judging whether the residual heating time from the current moment to the heating to the target set water temperature is less than or equal to the current time difference or not; and

and the operation module is used for heating according to the residual heating time when the judgment result is yes, and otherwise, increasing the heating power of the hot water equipment and/or starting the electric auxiliary heat of the hot water equipment.

11. A water temperature setting device for a water heating apparatus as claimed in claim 10, wherein the control module further comprises:

the third calculating module is used for calculating the residual heating time according to the following preset heating time formula:

12. A water temperature setting device for a hot water apparatus as claimed in any one of claims 7 to 11, further comprising an activation module, in particular for: