Water heater water pump control method and device, electronic equipment and storage medium

Abstract

The invention discloses a water heater water pump control method and device, electronic equipment and a storage medium, and the method comprises the steps that the current time is obtained in response to the zero cold water requirement, and if the current time is within a preset high-environment bottom noise period, the limit rotating speed of a water pump is set as a preset first rotating speed; if the current time is within the preset low-environment bottom noise period, the limit rotating speed of the water pump is set to be a preset second rotating speed; controlling the water pump to operate based on the limit speed of the water pump; when the zero cold water function is executed, the limit rotating speed of the water pump is set according to the current period, and if the current period is in the high environment bottom noise period and the noise sensitivity of a user to the water pump during operation is low, the limit rotating speed of the water pump is set to be a large first rotating speed; if the user is in the low-environment bottom noise period at present, the noise sensitivity of the user to the water pump during operation is high, the limit rotating speed of the water pump is set to be the small second rotating speed, the water pump power adapts to the noise sensitivity of the user to the water pump during operation, and the user experience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water heater pump control, and in particular to a water heater pump control method, device, electronic equipment and storage medium. Background Art

[0002] Zero cold water means that the water heater preheats the water in the zero cold water circulation pipe in the hot water system to a specified temperature. When the user takes a bath, hot water will be available as soon as the shower is turned on, and cold water will not flow out first, that is, "zero" cold water.

[0003] After the water heater starts the zero cold water function, the built-in water pump of the water heater will start. The water pump is used to drive the water in the zero cold water circulation pipe to run into the water heater to heat the water in the zero cold water circulation pipe.

[0004] However, there are differences in household pipe resistance among different users. In order to make the water heater suitable for more users, water pumps with larger power and head are usually used. Although this can ensure that users with a larger pipe resistance range are covered, the more powerful water pumps have higher speeds during operation and generate more noise, resulting in a poor user experience. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a water heater pump control method, device, electronic device and storage medium to solve the problem of high water pump running noise when the water heater starts the zero cold water function.

[0006] In a first aspect, the present invention provides a water heater pump control method, comprising:

[0007] In response to zero cold water demand, obtain the current time;

[0008] If the current time is within the preset high ambient noise period, the maximum speed of the water pump is set to the preset first speed;

[0009] If the current time is within the preset low ambient noise period, the maximum speed of the water pump is set to the preset second speed;

[0010] Control the operation of the water pump based on the limit speed of the water pump to achieve zero cooling water function;

[0011] Wherein, the first rotation speed is greater than the second rotation speed.

[0012] In a second aspect, the present invention provides a water heater pump control device, comprising:

[0013] A time acquisition module, used to respond to zero cold water demand and acquire the current time;

[0014] A first speed setting module, used to set the maximum speed of the water pump to a preset first speed if the current time is within a preset high ambient noise period;

[0015] A second speed setting module, used to set the limit speed of the water pump to a preset second speed if the current time is within a preset low ambient noise period;

[0016] A water pump operation control module is used to control the water pump operation based on the water pump's limit speed to achieve a zero cooling water function;

[0017] Wherein, the first rotation speed is greater than the second rotation speed.

[0018] In a third aspect, the present invention provides an electronic device, the electronic device comprising:

[0019] at least one processor; and

[0020] a memory communicatively connected to the at least one processor; wherein,

[0021] The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the water heater pump control method described in the first aspect of the present invention.

[0022] In a fourth aspect, the present invention provides a computer-readable storage medium storing computer instructions, wherein the computer instructions are used to enable a processor to implement the water heater pump control method described in the first aspect of the present invention when executed.

[0023] The above-mentioned water heater pump control method, when executing the zero cold water function, sets the maximum speed of the water pump according to the current period. If the current period is a high ambient noise period, the ambient noise is large, and the user's sensitivity to the noise when the water pump is running is low. Therefore, the maximum speed of the water pump can be set to the larger first speed; if the current period is a low ambient noise period, the ambient noise is small, and the user's sensitivity to the noise when the water pump is running is high. Therefore, the maximum speed of the water pump can be set to the smaller second speed, so that the water pump power is adapted to the user's sensitivity to the noise when the water pump is running, avoiding the water pump from running at a higher speed (power) and continuously generating a large noise, especially in the period of low ambient noise, which can greatly improve the user experience.

[0024] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 is a flow chart of a water heater pump control method provided by an embodiment of the present invention;

[0027] Figure 2 It is a schematic diagram of a flow chart of controlling the operation of a water pump based on the limiting speed of the water pump provided by an embodiment of the present invention;

[0028] Figure 3 is a flow chart of a water heater pump control method provided by an embodiment of the present invention;

[0029] Figure 4 is a flow chart of a water heater pump control method provided by an embodiment of the present invention;

[0030] Figure 5 It is a structural schematic diagram of a zero cold water gas water heater system provided by an embodiment of the present invention;

[0031] Figure 6 It is a structural schematic diagram of a water heater pump control device provided by an embodiment of the present invention;

[0032] Figure 7 It is a schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0034] In one embodiment of the present invention, a water heater pump control method is provided. This embodiment is applicable to the case of water heater pump control. The method can be executed by a water heater pump control device. The water heater pump control device can be implemented in the form of hardware and / or software. The water heater pump control device can be configured in an electronic device. Figure 1 FIG. 1 is a flow chart of a water heater pump control method according to an embodiment of the present invention. Figure 1 As shown, the water heater pump control method includes:

[0035] S101. Respond to zero cold water demand and obtain current time.

[0036] Specifically, the water heater manufacturer can set a fixed zero cold water demand period, such as 6:00 am to 1:00 am, or the user can set a specific zero cold water demand period for the water heater according to the demand. When the zero cold water demand period is reached, the water heater determines that there is zero cold water demand. Of course, a button corresponding to the zero cold water function can also be set on the water heater. When the button is activated, the water heater receives zero cold water demand. The present invention does not limit the triggering method of zero cold water demand.

[0037] Optionally, when there is zero cold water demand, the water heater can synchronize with the server via wifi to obtain the current time.

[0038] S102. If the current time is within a preset high ambient noise period, the maximum speed of the water pump is set to a preset first speed; if the current time is within a preset low ambient noise period, the maximum speed of the water pump is set to a preset second speed, wherein the first speed is greater than the second speed.

[0039] The greater the water pump speed (power), the greater the noise generated. When the ambient noise floor is high, the user is less sensitive to the noise when the water pump is running. Therefore, the water pump's maximum speed can be set to a larger first speed. If the current environment is in a period of low ambient noise, the ambient noise floor is small, and the user is more sensitive to the noise when the water pump is running. Therefore, the water pump's maximum speed can be set to a smaller second speed, so that the water pump power is adapted to the user's sensitivity to the noise when the water pump is running, thereby improving the user experience.

[0040] Among them, the first speed, the second speed and the high / low ambient noise period can be the manufacturer's default settings, or can be set by the user according to the actual use environment.

[0041] Optionally, set the maximum speed calibration value of the pump to N S , the first speed can be a*N S , the second speed can be b*N S , a and b are both greater than 0 and less than or equal to 1, a is greater than b, and illustratively, the value range of a can be (0.75-1], and the value range of b can be (0.5-0.75].

[0042] Optionally, the high / low ambient noise period can be set according to the local main working hours. During the local main working hours, there is usually high ambient noise caused by traffic, industry, construction, etc. Therefore, the period corresponding to the main working hours can be set as the high ambient noise period, and the period corresponding to the non-main working hours can be set as the low ambient noise period. For example, the high ambient noise period is AM 8:00-PM 6:00, and the low ambient noise period is PM 6:00-AM 8:00.

[0043] Furthermore, the local dusk time can be used as the start time of the low ambient noise period, and the local dawn time can be used as the start time of the high ambient noise period. When there is zero cold water demand, the water heater synchronizes with the server via WiFi to obtain the local dusk time and dawn time and determine the maximum speed of the water pump based on this.

[0044] S103: Control the operation of the water pump based on the limit speed of the water pump to achieve a zero cooling water function.

[0045] After setting the maximum speed of the water pump, you can control the operation of the water pump under the limit of the maximum speed to achieve the zero cold water function, that is, when executing the zero cold water function, the maximum speed of the water pump does not exceed the maximum speed, which limits the maximum noise of the water pump during operation. Especially in low ambient noise periods, reducing the noise during water pump operation is more effective in improving user experience, while in high ambient noise periods, a higher water pump speed will also generate more noise, but the impact on users is small at this time. At the same time, a higher speed is conducive to hot water circulation, and the zero cold water function can be quickly achieved to provide users with hot water.

[0046] The water heater pump control method of this embodiment sets the maximum speed of the water pump according to the current period when executing the zero cold water function. If the current period is a high ambient noise period, the ambient noise is relatively large, and the user's sensitivity to the noise when the water pump is running is relatively low. Therefore, the maximum speed of the water pump can be set to the larger first speed; if the current period is a low ambient noise period, the ambient noise is relatively small, and the user's sensitivity to the noise when the water pump is running is relatively high. Therefore, the maximum speed of the water pump can be set to the smaller second speed, so that the water pump power is adapted to the user's sensitivity to the noise when the water pump is running, thereby improving the user experience.

[0047] In an optional embodiment of the present invention, based on the previous embodiment, the operation of the water pump is controlled based on the limiting speed of the water pump, and further refined. Figure 2 This is a flow chart of controlling the operation of a water pump based on the water pump's limit speed. Figure 2 As shown, the process of controlling the operation of the water pump based on the limiting speed of the water pump specifically includes the following:

[0048] S201. After the water pump is started, obtain the current rotation speed of the water pump.

[0049] S202: Determine whether the current rotation speed of the water pump is less than the limit rotation speed of the water pump.

[0050] If yes, execute S203, if no, execute S204.

[0051] S203: Setting the rotation speed of the water pump during operation based on the current water flow rate of the zero-cold water circulation pipeline.

[0052] The water flow rate of the zero cold water circulation pipe is the flow rate of water. The greater the water flow rate, the better the thermal circulation effect of the water. Generally speaking, within a certain range, the water pump speed is positively correlated with the water flow rate of the zero cold water circulation pipe. However, since the resistance of the user's household pipe system may be different, even for the same model of water heater, the water flow rate of the zero cold water circulation pipe may be different at the same water pump speed, and the water flow rate required to achieve zero cold water demand is relatively fixed. For example, a water flow rate of 5 liters / minute can meet the zero cold water demand. Therefore, when the limit speed has been set, the speed of the water pump during operation can also be set in combination with the water flow rate of the zero cold water circulation pipe. When the current speed of the water pump is less than the limit speed, it means that there is still room for the speed of the water pump to be increased. However, when the current water flow rate of the zero-cold water circulation pipeline is large or meets the zero-cold water demand, there is no need to increase the speed of the water pump. This can both meet the zero-cold water demand and avoid causing large water pump noise. When the current water flow rate of the zero-cold water circulation pipeline is small or cannot meet the zero-cold water demand, the speed of the water pump can be increased to quickly heat the water in the zero-cold water circulation pipeline to quickly provide hot water to users.

[0053] After the water pump speed is set, the process returns to S202 to determine whether the current speed of the water pump is less than the limit speed of the water pump.

[0054] S204, control the water pump to run at the limit speed.

[0055] When the current speed of the water pump is greater than or equal to the maximum speed of the water pump, the water pump is controlled to run at the maximum speed to prevent the water pump speed from continuing to increase and generating loud noise, affecting the user experience. In addition, when running at the maximum speed, the water in the zero-cold water circulation pipeline can also reach the corresponding temperature of the zero-cold water demand as soon as possible, ensuring that users have hot water to use when boiling water.

[0056] In an optional embodiment of the present invention, when the current rotation speed of the water pump is less than the limit rotation speed, step S203: setting the rotation speed of the water pump when it is running based on the current water flow rate of the zero cold water circulation pipeline includes:

[0057] Determine whether the water flow in the zero cold water circulation pipeline reaches the first water flow when the hot water circulation function is normally used; if so, keep the current speed of the water pump unchanged; if not, increase the speed of the water pump.

[0058] Normal use of the hot water circulation function means that the various hot water usage needs of users are met, such as bathroom water, kitchen water, etc.

[0059] When the current speed of the water pump is less than the limit speed, it means that there is still room for the speed of the water pump to be increased, but the current water flow rate of the zero cold water circulation pipeline has met the requirements of the normal use of the hot water circulation function, and there is no need to increase the speed of the water pump. For example, the first water flow rate can be 5 liters / minute.

[0060] In order to explain in detail the adjustment method of the water pump speed in this embodiment, Figure 3 And the following example to illustrate, Figure 3 It is a flow chart of a water heater pump control method, such as Figure 3 As shown, the water heater pump control method includes the following steps:

[0061] S31, starts with zero cold water demand.

[0062] S32, obtaining the current time, and setting the maximum speed of the water pump according to the current time.

[0063] For example, if the current time is between 8 a.m. and 8 p.m. (a period of high ambient noise), the water pump limit speed N is set to 100% of the maximum speed; if the current time is between 8 p.m. and 8 a.m. (a period of low ambient noise), the water pump limit speed N is set to 75% of the maximum speed.

[0064] S33: The water pump is started and the current water flow is obtained.

[0065] S34, adjust the water pump speed and obtain the current water pump speed n0.

[0066] S35. Determine whether the current water pump speed n0 is less than the water pump limit speed N.

[0067] If yes, proceed to S37 to determine the water flow rate, if no, proceed to S36 to set the speed of the water pump.

[0068] S36: The water pump runs at the water pump limit speed N.

[0069] When the current water pump speed has reached the preset water pump limit speed, in order to prevent the water pump speed from continuing to rise and increase the noise intensity, the water pump speed is limited to run at the water pump limit speed, which can also ensure the heating speed of the water in the zero cold water circulation pipeline.

[0070] After executing S38, enter S39.

[0071] S37. Determine whether the current water flow rate is equal to the first flow rate.

[0072] The first flow rate is the flow rate when the hot water circulation function is used normally.

[0073] If yes, go to S38, if no, return to S34 to adjust the water pump speed.

[0074] S38: The water pump runs at the current speed n0.

[0075] If the current water flow rate reaches the first flow rate when the hot water circulation function is normally used, it means that the current water pump speed has met the use requirements, and the current speed can be maintained. After executing S38, enter S39.

[0076] S39, end.

[0077] The above embodiment uses the limiting speed as the main standard when adjusting the water pump speed, and uses the first flow rate when the hot water circulation function is normally used as the auxiliary standard. This ensures that during the water pump speed adjustment process, when the hot water circulation function is normal, the water pump speed will no longer be increased, thereby saving energy consumption and reducing noise during water pump operation.

[0078] In another optional embodiment of the present invention, when the current speed of the water pump is less than the limit speed, step S203 sets the speed of the water pump when it is running based on the current water flow rate of the zero cold water circulation pipeline, and further includes:

[0079] Determine whether the current operation mode of the water heater is the bathroom circulation hot water mode;

[0080] If so, determine whether the current water flow rate of the zero cold water circulation pipeline reaches the second water flow rate required to realize the zero cold water function in the bathroom circulating hot water mode; when the current water flow rate reaches the second water flow rate, keep the current speed of the water pump unchanged; when the current water flow rate does not reach the second water flow rate, increase the speed of the water pump;

[0081] If not, determine whether the current water flow rate of the zero cold water circulation pipeline reaches the third water flow rate required to realize the zero cold water function in the non-bathroom circulating hot water mode; when the current water flow rate reaches the third water flow rate, keep the current speed of the water pump unchanged; when the current water flow rate does not reach the third water flow rate, increase the speed of the water pump;

[0082] The second water flow rate is greater than the third water flow rate. For example, the second flow rate is 5 liters / minute and the third water flow rate is 3 liters / minute.

[0083] Determining whether the current operation mode of the water heater is the bathroom circulation hot water mode includes: determining whether the water heater has a bathroom water-on operation or a bathroom water-off operation within the most recent preset time period; if so, determining that the current operation mode of the water heater is the bathroom circulation hot water mode; if not, determining that the current operation mode of the water heater is not the bathroom circulation hot water mode. Bathroom water-on operation and bathroom water-off operation are both operations performed by the user when performing bathroom activities, so it can be determined based on this whether the current operation mode of the water heater is the bathroom circulation hot water mode.

[0084] The opening cycle or opening time of the bathroom circulating hot water mode can be set according to demand. For example, the water heater is equipped with a button for setting the bathroom circulating mode. When the button is short pressed, the single cruise mode, inching mode, all-weather mode, timing mode or closed circulating hot water mode can be switched in sequence. The circulating hot water mode indicator lights up to indicate that the mode is turned on, and the circulating hot water mode indicator flashes to indicate that the mode is running. For example, in the single cruise mode, the circulating hot water function keeps running for 1 hour. In the inching mode, the hot water tap is turned on for more than 2 seconds and closed within 8 seconds to start the circulating hot water mode, and it automatically exits after reaching the set temperature.

[0085] Generally speaking, when the water heater is in the bathroom circulating hot water mode, the user may need to use water for kitchen and bathroom bathing, etc. Usually, the user's water demand is relatively large. In order to ensure that the user can use enough hot water immediately, the standard water flow required in the bathroom circulating hot water mode is usually large. Therefore, the standard water flow required to ensure the normal water use of the user in the bathroom circulating hot water mode is the second water flow. When the water heater is in the non-bathroom circulating hot water mode, the user may need to wash hands, wash fruits and other water behaviors. Usually, the user's water demand is relatively small. Therefore, the standard water flow required to ensure the normal water use of the user in the non-bathroom circulating hot water mode is small, and the required standard water flow is set to the third water flow. When the current speed of the water pump is less than the limit speed, it means that the speed of the water pump still has room for improvement. Therefore, when the water heater is in the bathroom circulating hot water mode and the non-bathroom circulating hot water mode, it can be judged whether the speed of the water pump needs to be further increased according to the corresponding standard water flow.

[0086] In order to explain in detail the adjustment method of the water pump speed in this embodiment, Figure 4 And the following example to illustrate, Figure 4 It is a flow chart of a water heater pump control method, such as Figure 4 As shown, the water heater pump control method includes the following steps:

[0087] S41, starts with zero cold water demand.

[0088] S42, obtaining the current time, and setting the maximum speed of the water pump according to the current time.

[0089] For example, if the current time is between 8 a.m. and 8 p.m. (a period of high ambient noise), the water pump limit speed N is set to 100% of the maximum speed; if the current time is between 8 p.m. and 8 a.m. (a period of low ambient noise), the water pump limit speed N is set to 75% of the maximum speed.

[0090] S43: The water pump is started and the current water flow is obtained.

[0091] S44, adjust the water pump speed and obtain the current water pump speed n0.

[0092] S45. Determine whether the current water pump speed n0 is less than the water pump limit speed N.

[0093] If so, proceed to S47 to determine the bathroom circulating hot water mode; if not, proceed to S46 to set the speed of the water pump.

[0094] S46: The water pump runs at the water pump limit speed N.

[0095] When the current water pump speed has reached the preset water pump limit speed, in order to prevent the water pump speed from continuing to rise and increase the noise intensity, the water pump speed is limited to run at the water pump limit speed, which can also ensure the heating speed of the water in the zero cold water circulation pipeline.

[0096] After executing S46, enter S411.

[0097] S47, determining whether the current mode is bathroom circulating hot water mode.

[0098] If so, enter S48 to set the water pump speed according to the standard water flow in the bathroom circulating hot water mode. If not, return to S49 to set the water pump speed according to the standard water flow in the non-bathroom circulating hot water mode.

[0099] S48. Determine whether the current water flow rate is equal to the second flow rate.

[0100] The second flow rate is the standard water flow rate required to ensure normal water use by users in the bathroom circulating hot water mode.

[0101] If so, the process proceeds to S410 to operate at the current speed n0; if not, the process returns to S44 to adjust the water pump speed.

[0102] S49. Determine whether the current water flow rate is equal to the third flow rate.

[0103] The third flow rate is the standard water flow rate required to ensure normal water use by users in non-bathroom circulating hot water mode.

[0104] S410: The water pump runs at the current speed n0.

[0105] If the standard flow rate during normal use is reached in the bathroom circulating hot water mode or the non-bathroom circulating hot water mode, it means that the current water pump speed has met the use requirements, and the current speed n0 can be maintained. After executing S410, enter S411.

[0106] S411, end.

[0107] Optionally, when the current water flow rate does not reach the second water flow rate, increasing the rotation speed of the water pump includes: when the current water flow rate does not reach the second water flow rate, increasing the rotation speed of the water pump by a preset first amplitude R1;

[0108] When the current water flow rate does not reach the third water flow rate, increasing the rotation speed of the water pump includes: when the current water flow rate does not reach the third water flow rate, increasing the rotation speed of the water pump by a preset second amplitude R2;

[0109] Among them, the first amplitude R1 is greater than the second amplitude R1. For example, R1 is 200r / min and R2 is 100r / min. This is because the water flow rate and water pump speed required to meet normal water demand in the bathroom circulating hot water mode are respectively greater than the water flow rate and water pump speed required to meet normal water demand in the non-bathroom circulating hot water mode. Therefore, the amplitude of increasing the water pump speed in the bathroom circulating hot water mode should be larger to increase the water pump speed as quickly as possible and improve the heating speed.

[0110] Optionally, after controlling the operation of the water pump based on the limit speed of the water pump, the method further includes: when it is detected that the temperature of the water inlet of the zero cold water circulation pipeline reaches the set temperature corresponding to the zero cold water demand, controlling the water pump to shut down. When the zero cold water demand is reached, shutting down the water pump in time can reduce noise and energy consumption.

[0111] In this embodiment, on the basis of setting the maximum speed, the speed of the water pump is set in combination with the standard water flow in the bathroom circulating hot water mode and the non-bathroom circulating hot water mode. This can make the noise of the water pump during operation adapt to the ambient noise floor, improve the user experience, and also make the speed of the water pump adapt to the application requirements, which can not only meet the zero cold water demand in different hot water modes, but also avoid increasing unnecessary water pump noise.

[0112] The present invention also provides a zero cold water gas water heater system, see Figure 5, including a cold water pipe 51, a cold water pipe 52, a hot water pipe 4, a water inlet stop valve 3 located at the tap water inlet, at least one mixing valve 6 connected to a water use point, a one-way valve 7, a return pipe 8 and a zero cold water gas water heater 9, in which a zero cold water circulation pipeline and a water pump are provided; a stop valve 1 and a stop valve 2 are respectively provided on the hot water pipe 4 and the cold water pipe 52; the hot water port of the mixing valve 6 is connected to the hot water pipe 4, the cold water port of the mixing valve 6 is connected to one end of the cold water pipe 51, the other end of the cold water pipe 51 is connected to one end of the cold water pipe 52, and the other end of the cold water pipe 52 is connected to the cold water inlet nozzle 5; the water inlet stop valve 3 is connected to the cold water pipe 51 and the cold water pipe 52.

[0113] The zero cold water gas water heater 9 has the function of water circulation heating. The zero cold water gas water heater 9 is also provided with a controller. When the temperature sensor provided in the hot water pipe 4 detects that the water temperature in the hot water pipe 4 is lower than the preset requirement, the controller will control the water pump to start, so that the water in the zero cold water circulation pipeline is heated, and after heating, it flows out from the hot water outlet connected to the hot water pipe 4, thereby realizing the circulation heating of the water in the hot water pipe 4. The cold water in the hot water pipe 4 is returned to the cold water pipe 51 through the one-way valve 7 and the return pipe 8, and enters the zero cold water gas water heater 9 through the cold water pipe 51 and the cold water pipe 52 for heating, so that the cold water in the hot water pipe 4 can be preheated, so that the water used by the user at the water point is preheated, that is, the zero cold water function is realized.

[0114] The present invention also provides a water heater pump control device. Figure 6 The schematic diagram of the structure of a water heater pump control device provided by an embodiment of the present invention. Figure 6 As shown, the water heater pump control device comprises:

[0115] The time acquisition module 601 is used to respond to zero cold water demand and acquire the current time;

[0116] A first speed setting module 602 is used to set the maximum speed of the water pump to a preset first speed if the current time is within a preset high ambient noise period;

[0117] The second speed setting module 603 is used to set the limit speed of the water pump to a preset second speed if the current time is within a preset low ambient noise period;

[0118] The water pump operation control module 604 is used to control the water pump operation based on the limit speed of the water pump to achieve the zero cooling water function;

[0119] Wherein, the first rotation speed is greater than the second rotation speed.

[0120] Optionally, the water pump operation control module 604 includes:

[0121] The current speed acquisition submodule is used to obtain the current speed of the water pump after the water pump is started;

[0122] The speed comparison submodule is used to determine whether the current speed of the water pump is less than the limit speed of the water pump; if so, the content of the speed regulation submodule is executed; if not, the content of the limit speed operation submodule is executed;

[0123] A speed adjustment submodule, used to set the speed of the water pump when it is running based on the current water flow rate of the zero-cold water circulation pipeline, and return the content of executing the speed comparison submodule;

[0124] The speed limit operation submodule is used to control the water pump to operate at the speed limit.

[0125] Optionally, the speed adjustment submodule includes:

[0126] The first water flow determination unit is used to determine whether the water flow in the zero cold water circulation pipeline reaches the first water flow when the hot water circulation function is normally used; if so, the content of the speed maintaining unit is executed, if not, the content of the first speed increasing unit is executed;

[0127] A first speed maintaining unit, used to maintain the current speed of the water pump unchanged;

[0128] The first speed increasing unit is used to increase the speed of the water pump.

[0129] Optionally, the speed adjustment submodule further includes:

[0130] The mode judgment unit is used to judge whether the current operation mode of the water heater is the bathroom circulation hot water mode; if so, the content of the second water flow judgment unit is executed; if not, the content of the third water flow judgment unit is executed;

[0131] The second water flow determination unit is used to determine whether the current water flow of the zero cold water circulation pipeline reaches the second water flow required for realizing the zero cold water function in the bathroom circulating hot water mode;

[0132] A second speed maintaining unit, used for maintaining the current speed of the water pump unchanged when the current water flow rate reaches the second water flow rate;

[0133] A second speed increasing unit, used for increasing the speed of the water pump when the current water flow rate does not reach the second water flow rate;

[0134] The third water flow determination unit is used to determine whether the current water flow of the zero cold water circulation pipeline reaches the third water flow required for realizing the zero cold water function in the non-bathroom circulating hot water mode;

[0135] a third speed maintaining unit, configured to maintain the current speed of the water pump unchanged when the current water flow rate reaches the third water flow rate;

[0136] a third speed increasing unit, configured to increase the speed of the water pump when the current water flow rate does not reach the third water flow rate;

[0137] Wherein, the second water flow rate is greater than the third water flow rate.

[0138] Optionally, the mode determination unit includes:

[0139] The mode determination subunit is used to determine whether the water heater has a bathroom water-on operation or a bathroom water-off operation within a recent preset time period; if so, the content of the first mode determination subunit is executed; if not, the content of the second mode determination subunit is executed;

[0140] The first mode determination subunit is used to determine that the current operation mode of the water heater is a bathroom circulating hot water mode;

[0141] The second mode determination subunit is used to determine that the current operation mode of the water heater is a non-bathroom circulating hot water mode.

[0142] Optionally, the second speed increasing unit is further configured to increase the speed of the water pump by a preset first amplitude when the current water flow rate does not reach the second water flow rate;

[0143] The third speed increasing unit is further used to increase the speed of the water pump by a preset second amplitude when the current water flow rate does not reach the third water flow rate;

[0144] Wherein, the first amplitude is greater than the second amplitude.

[0145] Optionally, the water heater pump control device further includes:

[0146] The water pump shut-off module is used to control the water pump to shut down when it is detected that the temperature of the water inlet of the zero-cold water circulation pipeline reaches the set temperature corresponding to the zero-cold water demand.

[0147] The water heater pump control device provided in the embodiment of the present invention can execute the water heater pump control method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0148] The present invention also provides an electronic device for implementing the embodiments of the present invention. Figure 7A block diagram of an electronic device 40 is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or claimed herein.

[0149] like Figure 7 As shown, the electronic device 40 includes at least one processor 41, and a memory connected to the at least one processor 41, such as a read-only memory (ROM) 42, a random access memory (RAM) 43, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 41 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 42 or the computer program loaded from the storage unit 48 to the random access memory (RAM) 43. In the RAM 43, various programs and data required for the operation of the electronic device 40 can also be stored. The processor 41, the ROM 42, and the RAM 43 are connected to each other through a bus 44. An input / output (I / O) interface 45 is also connected to the bus 44.

[0150] A number of components in the electronic device 40 are connected to the I / O interface 45, including: an input unit 46, such as a keyboard, a mouse, etc.; an output unit 47, such as various types of displays, speakers, etc.; a storage unit 48, such as a disk, an optical disk, etc.; and a communication unit 49, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 49 allows the electronic device 40 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0151] The processor 41 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 41 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 41 executes the various methods and processes described above, such as a water heater pump control method.

[0152] In some embodiments, the water heater pump control method may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 48. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 40 via the ROM 42 and / or the communication unit 49. When the computer program is loaded into the RAM 43 and executed by the processor 41, one or more steps of the water heater pump control method described above may be performed. Alternatively, in other embodiments, the processor 41 may be configured to execute the water heater pump control method in any other appropriate manner (e.g., by means of firmware).

[0153] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0154] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0155] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0156] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0157] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0158] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0159] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0160] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and 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 heater pump control method, characterized in that: include: In response to zero cold water demand, obtain the current time; If the current time is within the preset high ambient noise period, the maximum speed of the water pump is set to the preset first speed; If the current time is within the preset low ambient noise period, the maximum speed of the water pump is set to the preset second speed; Control the operation of the water pump based on the limit speed of the water pump to achieve zero cooling water function; Wherein, the first rotation speed is greater than the second rotation speed.

2. The water heater pump control method according to claim 1, characterized in that: The method of controlling the operation of the water pump based on the limiting speed of the water pump comprises: After the water pump is started, obtain the current speed of the water pump; Determine whether the current speed of the water pump is less than the limit speed of the water pump; If yes, the speed of the water pump is set based on the current water flow rate of the zero cold water circulation pipeline, and after the setting is completed, the step of returning to determine whether the current speed of the water pump is less than the limit speed of the water pump is executed; If not, control the water pump to run at the limit speed.

3. The water heater pump control method according to claim 2, characterized in that: The method of setting the rotation speed of the water pump when it is running based on the current water flow rate of the zero-cold water circulation pipeline includes: Determine whether the water flow in the zero cold water circulation pipeline reaches the first water flow when the hot water circulation function is in normal use; If yes, keep the current speed of the water pump unchanged; If not, increase the speed of the pump.

4. The water heater pump control method according to claim 2, characterized in that: The method of setting the rotation speed of the water pump when it is running based on the current water flow rate of the zero-cold water circulation pipeline also includes: Determine whether the current operation mode of the water heater is the bathroom circulation hot water mode; If so, determine whether the current water flow rate of the zero cold water circulation pipeline reaches the second water flow rate required to realize the zero cold water function in the bathroom circulating hot water mode; When the current water flow rate reaches the second water flow rate, maintaining the current speed of the water pump unchanged; When the current water flow rate does not reach the second water flow rate, increasing the rotation speed of the water pump; If not, determine whether the current water flow rate of the zero cold water circulation pipeline reaches the third water flow rate required to realize the zero cold water function in the non-bathroom circulating hot water mode; When the current water flow rate reaches the third water flow rate, maintaining the current rotation speed of the water pump unchanged; When the current water flow rate does not reach the third water flow rate, increasing the rotation speed of the water pump; Wherein, the second water flow rate is greater than the third water flow rate.

5. The water heater pump control method according to claim 4, characterized in that: The step of determining whether the current operation mode of the water heater is a bathroom circulating hot water mode includes: Determine whether the water heater has been operated to turn on the water in the bathroom or to stop the water in the bathroom within the recent preset time period; If so, determine that the current operation mode of the water heater is the bathroom circulating hot water mode; If not, determine that the current operation mode of the water heater is non-bathroom circulating hot water mode.

6. The water heater pump control method according to claim 4, characterized in that: When the current water flow rate does not reach the second water flow rate, increasing the rotation speed of the water pump includes: When the current water flow rate does not reach the second water flow rate, increasing the rotation speed of the water pump by a preset first amplitude; When the current water flow rate does not reach the third water flow rate, increasing the rotation speed of the water pump includes: When the current water flow rate does not reach the third water flow rate, increasing the rotation speed of the water pump by a preset second amplitude; Wherein, the first amplitude is greater than the second amplitude.

7. The water heater pump control method according to any one of claims 1 to 6, characterized in that: After the water pump operation is controlled based on the limiting speed of the water pump, the method further includes: When it is detected that the temperature of the water inlet of the zero-cold water circulation pipeline reaches the set temperature corresponding to the zero-cold water demand, the water pump is controlled to be turned off.

8. A water heater pump control device, characterized in that: include: A time acquisition module, used to respond to zero cold water demand and acquire the current time; A first speed setting module, used to set the maximum speed of the water pump to a preset first speed if the current time is within a preset high ambient noise period; A second speed setting module, used to set the limit speed of the water pump to a preset second speed if the current time is within a preset low ambient noise period; A water pump operation control module is used to control the water pump operation based on the water pump's limit speed to achieve a zero cooling water function; Wherein, the first rotation speed is greater than the second rotation speed.

9. A water heater, characterized in that: The water heater comprises: Water pump; at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the water heater pump control method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the water heater pump control method according to any one of claims 1 to 7 when executed.

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