A control method, control device and shower

Abstract

The application discloses a control method, a control device and a shower. The control method is used for a water outlet device, the water outlet device comprises a hot water pipe, a cold water pipe, a cold water pre-discharge pipe, a control valve and a temperature detection device; the hot water pipe and the cold water pipe are respectively arranged to deliver hot water and cold water; an input end of the cold water pre-discharge pipe is communicated with the hot water pipe, and the control valve is arranged on the cold water pre-discharge pipe and arranged to control on-off of the cold water pre-discharge pipe; the temperature detection device is arranged on the cold water pre-discharge pipe and / or the hot water pipe; and the control method comprises the following steps: acquiring a detection result of the temperature detection device; and controlling on-off of the control valve according to the detection result or a water control instruction. The control method disclosed by the application can effectively reduce the amount of discharged cold water, reduce waste of water resources and improve user experience.

Description

TECHNICAL FIELD

[0001] The present application relates to, but is not limited to, the field of bathroom equipment, and in particular to a control method, a control device and a shower. BACKGROUND

[0002] With the development of electronic control intelligentization in the bathroom industry, the electronic control switch mode of the shower on the market is increasingly favored by consumers. The electronic button switch commonly used for controlling the emptying of the cold water pipeline of the current shower is installed on the shower for pre-emptying cold water. When the electronic button is pressed, the shower opens the water outlet to empty the cold water in the hot water pipeline.

[0003] The existing structure has a waste phenomenon in pre-emptying cold water, and the amount of discharged cold water is large, resulting in poor user experience. SUMMARY

[0004] The embodiments of the present application provide a control method, a control device and a shower, which can effectively reduce the amount of discharged cold water, reduce the waste of water resources, and provide good user experience.

[0005] The embodiments of the present application provide a control method for a water outlet device, wherein the water outlet device comprises a hot water pipe, a cold water pipe, a cold water pre-emptying pipe, a control valve, a temperature detection device, a mixing valve and a mixed water outlet pipe; the mixing valve is a thermostatic valve; the hot water pipe and the cold water pipe are respectively arranged to deliver hot water and cold water; the input end of the cold water pre-emptying pipe is in communication with the hot water pipe, and the control valve is arranged on the cold water pre-emptying pipe; the control valve is arranged to control the on-off of the cold water pre-emptying pipe; the temperature detection device is arranged on the cold water pre-emptying pipe and / or the hot water pipe; the first water inlet and the second water inlet of the mixing valve are respectively in communication with the hot water pipe and the cold water pipe, and the water outlet of the mixing valve is in communication with the mixed water outlet pipe.

[0006] The control method comprises the following steps:

[0007] obtaining a detection result of the temperature detection device;

[0008] controlling the on-off of the control valve according to the detection result or a water control instruction.

[0009] The water control instruction comprises a water outlet instruction, and the water outlet instruction comprises a cold water pre-emptying instruction and a hot water emptying instruction.

[0010] The control valve is controlled to be opened according to the water outlet instruction to turn on the cold water pre-emptying pipe, and the method comprises the following steps:

[0011] The control valve is controlled to be opened according to the cold water pre-emptying instruction to turn on the cold water pre-emptying pipe to discharge the residual cold water in the hot water pipe;

[0012] The control valve is controlled to open according to the hot water pre-discharge instruction, so as to open the hot water in the hot water pre-discharge pipe.

[0013] Further, the control method further comprises:

[0014] detecting the opening and closing state of the mixing valve;

[0015] controlling the on-off of the control valve according to the opening and closing state of the mixing valve.

[0016] Further, the control method further comprises:

[0017] based on the mixing valve being in the open state, closing the control valve or keeping the control valve in the closed state, and locking the control valve in the closed state.

[0018] Further, the water outlet device further comprises a water flow sensor arranged on the cold water pipe, and / or the water outlet device further comprises a water flow sensor arranged on the mixed water outlet pipe.

[0019] The detection of the opening and closing state of the mixing valve comprises:

[0020] determining the opening and closing state of the mixing valve according to the detection result of the water flow sensor.

[0021] Further, the control method further comprises:

[0022] based on the detection result meeting the set closing condition, controlling the control valve to close, so as to shut off the cold water pre-discharge pipe.

[0023] Further, the set closing condition comprises at least one of a first closing condition, a second closing condition and a third closing condition.

[0024] The control of the control valve to close based on the detection result meeting the set closing condition, so as to shut off the cold water pre-discharge pipe, comprises:

[0025] based on the detection result meeting the first closing condition, determining that the cold water pre-discharge is normally ended, and controlling the control valve to close;

[0026] based on the detection result meeting the second closing condition, determining that a first cold water pre-discharge abnormal condition occurs, and controlling the control valve to close;

[0027] based on the detection result meeting the third closing condition, determining that a second cold water pre-discharge abnormal condition occurs, and controlling the control valve to close.

[0028] Further, the first closing condition comprises: the temperature detected by the temperature detecting device is greater than or equal to a first set value within a first set time;

[0029] The second closing condition comprises: the temperature detected by the temperature detecting device is less than a second set value after a second set time;

[0030] The third closing condition comprises: the temperature detected by the temperature detecting device is less than a third set value after a third set time;

[0031] The first set value is greater than the second set value, and the second set value is greater than the third set value; the first set time is less than the second set time, and the second set time is less than the third set time.

[0032] Further, the water control instruction further comprises a water closing instruction, and the controlling the opening and closing of the control valve according to the water control instruction comprises:

[0033] controlling the control valve to open according to the water outlet instruction to turn on the cold water pre-discharge pipe;

[0034] controlling the control valve to close according to the water closing instruction to close the cold water pre-discharge pipe.

[0035] Further, the source of the water outlet instruction and the water closing instruction comprises at least one of the following:

[0036] The water outlet instruction and the water closing instruction are instructions sent by a remote controller or a terminal device;

[0037] The water outlet instruction and the water closing instruction are instructions input by a user through an interactive interface;

[0038] The water outlet instruction and the water closing instruction are instructions triggered by a sensor after detecting a user action.

[0039] Further, the controlling the control valve to close according to the water closing instruction to close the cold water pre-discharge pipe comprises:

[0040] receiving the water closing instruction after controlling the control valve to open according to the hot water discharge instruction to turn on the cold water pre-discharge pipe;

[0041] performing the step of controlling the control valve to close according to the water closing instruction to close the cold water pre-discharge pipe.

[0042] The embodiments of the present application further provide a control device, which comprises a processor, a memory, and a computer program stored in the memory and executable on the processor, and the computer program is executed by the processor to implement the steps of the control method.

[0043] The embodiment of the present application further provides a shower, which comprises the control device.

[0044] Compared with some technologies, the present application has the following beneficial effects:

[0045] The control method provided by the embodiment of the present application communicates the cold water pre-discharge pipe with the hot water pipe, directly discharges the residual cold water in the cold water pipe to complete the cold water pre-discharge process, ensures that the water outlet device can directly discharge hot water with appropriate temperature when used by a user, and reduces the amount of residual water discharged, thereby protecting water resources and improving water saving. The cold water pre-discharge process is controlled by detecting the water temperature in the hot water pipe or the cold water pre-discharge pipe, the control logic is simple, the overall water saving is good, the time required for completing the cold water pre-discharge is short, and the use experience of the user is improved.

[0046] Other features and advantages of the present application will be described in the subsequent description. BRIEF DESCRIPTION OF DRAWINGS

[0047] The accompanying drawings are used to provide a further understanding of the technical solutions of the present application, and constitute a part of the specification, and are used to explain the technical solutions of the present application together with the embodiments of the present application, and do not constitute a limitation to the technical solutions of the present application.

[0048] Figure 1 A schematic diagram of a water outlet device provided by an embodiment of the present application is shown in the figure.

[0049] Figure 2 A schematic diagram of a water outlet structure of a water outlet device provided by an embodiment of the present application is shown in the figure.

[0050] Figure 3 A schematic diagram of a water outlet method provided by an embodiment of the present application is shown in the figure. Figure 1

[0051] Figure 4 A schematic diagram of a water outlet method provided by an embodiment of the present application is shown in the figure. Figure 2

[0052] Figure 5 A specific flowchart of a water outlet method provided by an embodiment of the present application is shown in the figure.

[0053] FIG. 1 shows a schematic diagram of a water outlet device provided by an embodiment of the present application.

[0054] 1-hot water pipe, 2-cold water pipe, 3-cold water pre-discharge pipe, 31-control valve, 32-temperature detection device, 4-mixed water outlet pipe, 41-mixing valve, 5-remote controller, 6-shower. DETAILED DESCRIPTION

[0055] ​​In order to make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be described in detail below with reference to the drawings. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily without conflict.

[0056] The cold water discharged in the cold water pre-discharge process of the current shower is directly poured on the ground and enters the sewage pipeline through the floor drain on the ground. When the residual cold water is discharged, the user is easy to be splashed and scalded by water. The cold water pre-discharge pipe is connected to the mixed water outlet pipe, and the cold water in the cold water pipe is also discharged when the water is discharged, which causes water waste.

[0057] The embodiments of the present application provide a control method, as shown in Figures 3 to 5 The control method is used for a water outlet device, as shown in Figure 1 and Figure 2 The water outlet device includes a hot water pipe 1, a cold water pipe 2, a cold water pre-discharge pipe 3, a control valve 31 and a temperature detection device 32. The hot water pipe 1 and the cold water pipe 2 are respectively arranged to transport hot water and cold water. The input end of the cold water pre-discharge pipe 3 is in communication with the hot water pipe 1, and the control valve 31 is arranged on the cold water pre-discharge pipe 3. The control valve 31 is arranged to control the on-off of the cold water pre-discharge pipe 3. The temperature detection device 32 is arranged on the cold water pre-discharge pipe 3 and / or the hot water pipe 1. The control method includes: obtaining the detection result of the temperature detection device 32; and controlling the on-off of the control valve 31 according to the detection result or a water control instruction.

[0058] The cold water pre-discharge pipe 3 is connected to the hot water pipe 1. In the cold water pre-discharge process, only the residual cold water in the hot water pipe 1 is discharged. Compared with the existing cold water pre-discharge pipe 3 connected to the mixed water pipe, the water discharge amount of the cold water pre-discharge is greatly reduced, the water discharge amount is saved, the cold water in the cold water pipe 2 is not discharged as residual water, and the time required for cold water pre-discharge is also shortened.

[0059] The control valve 31 is arranged on the cold water pre-discharge pipe 3. Before using the water outlet device, the control valve 31 is first opened to pre-discharge cold water, the residual cold water in the hot water pipe 1 is discharged, the hot water in the hot water supply unit enters and fills the hot water pipe 1, the hot water in the hot water pipe 1 and the cold water in the cold water pipe 2 are mixed and discharged, and the water outlet device is convenient for supplying hot water with appropriate temperature.

[0060] The water outlet device can be a shower 6. Before the user washes, the control valve 31 is first opened to pre-discharge cold water, and the user can directly wash after completion. That is, the shower 6 can directly discharge hot water after the cold water pre-discharge is completed, avoiding the user waiting for a long time for the water to become hot, and improving the user experience. The water outlet device can also be a related water outlet equipment of a kitchen or a bathroom hand washing sink.

[0061] The cold water pre-discharge pipe 3 and the hot water pipe 1 are communicated, the temperature detecting device 32 is used to detect the temperature of the cold water pre-discharge pipe 3 or the hot water pipe 1, and the opening and closing of the control valve 31 is controlled according to the detected water temperature, so as to complete the cold water pre-discharge operation. The temperature detecting device 32 can be arranged only in the cold water pre-discharge pipe 3, or arranged only in the hot water pipe 1, or arranged in both the cold water pre-discharge pipe 3 and the hot water pipe 1.

[0062] It should be understood that, in addition to using the temperature detecting device 32, the cold water pre-discharge process can also be controlled by means of setting a timer, for example, the cold water pre-discharge time is set in advance, and the cold water pre-discharge is determined to be completed after the cold water pre-discharge lasts for the set time. In addition, the cold water pre-discharge can also be manually turned on and off by the user, and the present application does not limit this.

[0063] The control method provided by the embodiment of the present application can effectively reduce the residual cold water discharged according to the water temperature of the cold water pre-discharge pipe 3 or the hot water pipe 1.

[0064] In an exemplary embodiment, the water outlet device further comprises a mixing valve 41 and a mixed water outlet pipe 4; the first water inlet and the second water inlet of the mixing valve 41 are communicated with the hot water pipe 1 and the cold water pipe 2 respectively, and the water outlet of the mixing valve 41 is communicated with the mixed water outlet pipe 4, as shown in Figure 2 The control method further comprises: detecting the opening and closing state of the mixing valve 41; and controlling the on-off of the control valve 31 according to the opening and closing state of the mixing valve 41. The mixing valve 41 can be a thermostatic valve, as shown in Figure 4 .

[0065] The mixed water discharged from the outlet of the mixed water outlet pipe 4 is hot water with appropriate temperature, which can be directly used by the user. The mixing valve 41 serves as a control switch of the mixed water outlet pipe 4, and is opened when the user needs to use hot water and closed when the user does not need to use hot water.

[0066] It should be understood that, during the cold water pre-discharge process, that is, when the control valve 31 on the cold water pre-discharge pipe 3 is opened, the mixing valve 41 is in a closed state, so as to prevent the cold water or hot water from being splashed to the user from the mixed water outlet pipe 4.

[0067] The connection point of the cold water pre-discharge pipe 3 and the hot water pipe 1 is arranged close to the mixing valve 41 on the hot water pipe 1, so as to more fully discharge the residual cold water in the hot water pipe 1.

[0068] The on-off of the control valve 31 is controlled according to the state of the mixing valve 41, that is, the control valve 31 and the mixing valve 41 have a linkage effect, and the state of the mixing valve 41 is taken as one of the bases for the on-off of the control valve 31, so as to avoid the mutual influence of the cold water pre-discharge (or hot water discharge) and the shower water outlet at the control valve 31, and ensure the normal work of the water outlet device.

[0069] In an exemplary embodiment, asFigure 4 As shown, the opening and closing of the control valve 31 is controlled according to the opening and closing state of the mixing valve 41, including: based on the mixing valve 41 being in the open state, closing the control valve 31 or keeping the control valve 31 in the closed state, and locking the control valve 31 in the closed state.

[0070] When the mixing valve 41 is in the open state, that is, the user is normally taking a shower, the control valve 31 is locked to avoid the cold water pre-discharge pipe 3 from spilling water on the user during the shower process, affecting the user's normal shower, and ensuring the user's use experience.

[0071] Based on the mixing valve 41 being in the closed state, the control valve 31 continues to maintain its original state.

[0072] That is, when the mixing valve 41 is in the closed state, the user is not using the water outlet device, and at this time the control valve 31 is normally used and can be normally opened.

[0073] In an exemplary embodiment, the water outlet device further comprises a water flow sensor arranged on the cold water pipe 2, and / or the water outlet device further comprises a water flow sensor arranged on the mixed water outlet pipe 4; detecting the opening and closing state of the mixing valve 41, including: determining the opening and closing state of the mixing valve 41 according to the detection result of the water flow sensor.

[0074] The water flow sensor is arranged to detect the user's bathing state, that is, when the user is normally bathing, the cold water pipe 2 will supply water together with the hot water pipe 1, and the subsequent mixed water outlet pipe 4 will discharge water with a suitable temperature at the water outlet to supply the user for bathing. When the water flow sensor detects that there is water flowing in the cold water pipe 2 or the mixed water outlet pipe 4, it is determined that the user is bathing, that is, the opening and closing state of the mixing valve 41 is determined according to the detection result of the water flow sensor.

[0075] When it is determined that the mixing valve 41 is in the open state, the control valve 31 is closed or kept in the closed state, and the control valve 31 is locked in the closed state, so that the control valve 31 is locked and cannot be opened, to avoid the control valve 31 from being accidentally opened to cause water to flow out of the cold water pre-discharge pipe 3, affecting the user's bathing.

[0076] In an exemplary embodiment, the opening and closing of the control valve 31 is controlled according to the detection result, including: based on the detection result meeting the set closing condition, the control valve 31 is closed to shut off the cold water pre-discharge pipe 3.

[0077] When the detection result meets the set closing condition, the control valve 31 is closed, and the cold water pre-discharge process is ended, to realize the automatic control of the cold water pre-discharge process without the need for the user to manually operate the closing, improving the user's use experience.

[0078] In an exemplary embodiment, setting the shut-off condition includes at least one of a first shut-off condition, a second shut-off condition, and a third shut-off condition; controlling the control valve 31 to close based on the detection result meeting the set shut-off condition to shut off the cold water pre-drainage pipe 3 includes: determining that the cold water pre-drainage has ended normally based on the detection result meeting the first shut-off condition, and controlling the control valve 31 to close; determining that a first cold water pre-drainage abnormality has occurred based on the detection result meeting the second shut-off condition, and controlling the control valve 31 to close; determining that a second cold water pre-drainage abnormality has occurred based on the detection result meeting the third shut-off condition, and controlling the control valve 31 to close.

[0079] After the cold water pre-drainage is completed, there may be several states, such as: 1. The cold water pre-drainage is completed normally, that is, the cold water pre-drainage is completed smoothly, and the water outlet device can directly discharge hot water at a suitable temperature; 2. The first cold water pre-drainage abnormality, that is, there is insufficient hot water in the hot water supply unit of hot water pipe 1, which causes the final outlet water temperature of the mixing outlet pipe 4 to not reach the set temperature; 3. The second cold water pre-drainage abnormality, that is, the hot water supply unit of hot water pipe 1 is damaged and cannot provide hot water, which causes the mixing outlet pipe 4 to not provide hot water.

[0080] In all three states, control valve 31 will eventually close to end the cold water pre-drainage process.

[0081] In one exemplary embodiment, the water outlet device further includes: a temperature detection device 32, configured to detect the water temperature of the cold water pre-discharge pipe 3; such as Figure 5 As shown, the first shut-off condition includes: within a first set time t1, the water temperature detected by the temperature detection device 32 is greater than or equal to the first set value s1; the second shut-off condition includes: after a second set time t2, the water temperature detected by the temperature detection device 32 is less than the second set value s2; the third shut-off condition includes: after a third set time t3, the water temperature detected by the temperature detection device 32 is less than the third set value s3; wherein, the first set value s1 is greater than the second set value s2, the second set value s2 is greater than the third set value s3; the first set time t1 is less than the second set time t2, and the second set time t2 is less than the third set time t3.

[0082] Within the first set time t1, the water temperature at the temperature detection device 32 rises from the temperature of the residual cold water to the normal hot water temperature (first set value s1). At this time, the cold water pre-drainage is completed normally, and the water outlet device can be used normally afterwards.

[0083] After the cold water pre-discharge is opened for a long time (the second set time t2), the water temperature at the temperature detection device 32 is still low (less than the second set value s2), at this time, it is the first cold water pre-discharge abnormal state, and the subsequent water outlet device cannot provide hot water meeting the requirements. In actual application, in this case, after the user opens the cold water pre-discharge, after the second set time t2, the pre-discharged water temperature is increased, but still does not meet the water temperature required by the user for bathing, that is, there may be a situation of "insufficient hot water in the water heater".

[0084] After the cold water pre-discharge is opened for a long time (the third set time t3), the water temperature at the temperature detection device 32 is still low (less than the third set value s3), at this time, it is the second cold water pre-discharge abnormal state, and the subsequent water outlet device cannot provide hot water meeting the requirements. In actual application, in this case, after the user opens the cold water pre-discharge, after the third set t3, the water temperature at the pre-discharge is still cold water, which is basically the same as the cold water pre-discharged at the beginning, and far cannot meet the water temperature required by the user for bathing, that is, there may be a situation of "the water heater may be damaged".

[0085] The third set time t3 is greater than the second set time t2, and the third set value s3 is less than the second set value s2, that is, compared with the second closing condition, the water temperature of the discharged water is lower after a longer time, which means that the water outlet device is almost unable to provide hot water, that is, "the water heater may be damaged", so that the determination condition is more accurate and the possibility of false positives is reduced.

[0086] It should be understood that the contents of the first closing condition, the second closing condition and the third closing condition are only illustratively explained here, and the first closing condition, the second closing condition and the third closing condition can also be other contents, for example: the second closing condition can be that after the first set time t1, the water temperature of the temperature detection device 32 is less than the first set value s1, and there is water in the hot water pipe 1; the condition under this setting adopts the parameters in the first closing condition, and the determination condition is simple, that is, after the first set time t1, if the water temperature reaches the water temperature required for bathing (that is, the water temperature is greater than or equal to the first set value s1), it is a normal cold water pre-discharge, and if the water temperature does not reach the water temperature required for bathing (that is, the water temperature is less than the first set value s1), it is "insufficient hot water". The third closing condition can be that after the first set time t1, the water temperature of the temperature detection device 32 is less than the first set value s1, and there is no water in the hot water pipe 1; the condition under this setting adopts the parameters in the first closing condition, and the determination condition is simple, that is, after the first set time t1, if the water temperature does not reach the water temperature required for bathing (that is, the water temperature is less than the first set value s1), and there is no water in the hot water pipe 1, it is "the water heater may be damaged". A flow meter can be correspondingly arranged in the hot water pipe 1.

[0087] In an exemplary embodiment, the first closing condition comprises: within the first set time, the water temperature detected by the temperature detection device 32 is greater than or equal to the first set value; the second closing condition comprises: after the second set time, the water temperature detected by the temperature detection device 32 is less than the second set value; the third closing condition comprises: after the third set time, the water temperature detected by the temperature detection device 32 is less than the third set value; wherein the first set value is greater than the second set value, and the second set value is greater than the third set value; the first set time is less than the second set time, and the second set time is less than the third set time.

[0088] Within the first set time t1, the water temperature at the temperature detection device 32 rises from the temperature of the residual cold water to the normal hot water temperature (the first set value s1), at which time the cold water pre-discharge normal end is reached, and the subsequent water outlet device can be used normally.

[0089] After the cold water pre-discharge is opened for a long time (the second set time t2), the water temperature at the temperature detection device 32 is still low (less than the second set value s2), at which time the first cold water pre-discharge abnormal state is reached, and the subsequent water outlet device cannot provide hot water that meets the requirements. In actual application, in this case, after the user opens the cold water pre-discharge, after the second set time t2, the pre-discharged water temperature rises, but still does not meet the water temperature required by the user for bathing, i.e., there may be a situation of "insufficient hot water in the water heater".

[0090] After the cold water pre-discharge is opened for a very long time (the third set time t3), the water temperature at the temperature detection device 32 is still very low (less than the third set value s3), at which time the second cold water pre-discharge abnormal state is reached, and the subsequent water outlet device cannot provide hot water that meets the requirements. In actual application, in this case, after the user opens the cold water pre-discharge, after the third set t3, the pre-discharged water temperature is still cold water, which is basically the same as the cold water pre-discharged at the beginning, and far cannot meet the water temperature required by the user for bathing, i.e., there may be a situation of "the water heater may be damaged".

[0091] The third set time t3 is greater than the second set time t2, and the third set value s3 is less than the second set value s2, i.e., compared with the second closing condition, the third closing condition is after a longer time, and the pre-discharged water temperature is lower, which means that the water outlet device is almost unable to provide hot water, i.e., "the water heater may be damaged", so that the determination condition is more accurate, and the possibility of false positives is reduced.

[0092] It should be understood that the contents of the first closing condition, the second closing condition and the third closing condition are only illustratively explained here, and the first closing condition, the second closing condition and the third closing condition can also be other contents, for example: the second closing condition can be that after the first set time t1, the water temperature of the temperature detection device 32 is less than the first set value s1, and there is water in the hot water pipe 1; the condition under this setting adopts the parameters in the first closing condition, and the determination condition is simple, that is, after the first set time t1, if the water temperature reaches the water temperature required for bathing (that is, the water temperature is greater than or equal to the first set value s1), it is normal that the cold water pre-discharge is completed, and if the water temperature does not reach the water temperature required for bathing (that is, the water temperature is less than the first set value s1), it is "hot water shortage". The third closing condition can be that after the first set time t1, the water temperature of the temperature detection device 32 is less than the first set value s1, and there is no water in the hot water pipe 1; the condition under this setting adopts the parameters in the first closing condition, and the determination condition is simple, that is, after the first set time t1, if the water temperature does not reach the water temperature required for bathing (that is, the water temperature is less than the first set value s1), and there is no water in the hot water pipe 1, it is "the water heater may be damaged". A flow meter can be correspondingly arranged in the hot water pipe 1.

[0093] In an exemplary embodiment, as shown in Figure 4 The water control instruction includes a water outlet instruction and a water closing instruction, and the control of the opening and closing of the control valve according to the water control instruction includes: controlling the control valve 31 to open according to the water outlet instruction to open the cold water pre-discharge pipe 3; and controlling the control valve 31 to close according to the water closing instruction to close the cold water pre-discharge pipe 3.

[0094] After the user issues the instruction, the control valve 31 is opened, and the cold water pre-discharge pipe 3 is opened to perform cold water pre-discharge, thereby improving the automation degree of cold water pre-discharge. Of course, after the control valve 31 is opened, hot water discharge can also be performed.

[0095] After the user issues the instruction, the control valve 31 is closed, and the cold water pre-discharge pipe 3 ends the cold water pre-discharge, thereby improving the automation degree of cold water pre-discharge. It should be understood that the cold water pre-discharge can be ended by the temperature detection device 32, that is, the temperature detection device 32 detects that the water temperature in the hot water pipe 1 or the cold water pre-discharge pipe 3 reaches the set value to end the cold water pre-discharge, or the cold water pre-discharge can be ended by user control. The present application does not limit this.

[0096] During the hot water discharge process of the cold water pre-discharge pipe 3, when the user gets enough hot water, the control valve 31 is controlled to be closed to end the hot water discharge process.

[0097] In an exemplary embodiment, the source of the water outlet instruction and the water closing instruction includes at least one of the following: the water outlet instruction and the water closing instruction are instructions sent by the remote controller 5 or the terminal device; the water outlet instruction and the water closing instruction are instructions input by the user through the interactive interface; the water outlet instruction and the water closing instruction are instructions triggered by the sensor after detecting the user action.

[0098] The user can issue a cold water pre-discharge instruction through the remote controller 5 or the mobile phone, and the controller receives the above instruction to control the control valve 31 to open to perform cold water pre-discharge.

[0099] Of course, a control panel can also be directly arranged on the water outlet device body structure, and the user inputs an instruction through the interactive interface on the control panel to control the control valve 31 to open.

[0100] In addition, the water outlet instruction and the water closing instruction can also be issued by a sensor, for example, the water outlet device can further include an infrared sensor arranged to detect user gesture actions and send signals to the control device, and the control device issues the water outlet instruction and the water closing instruction according to the signal of the infrared sensor.

[0101] In an exemplary embodiment, the water outlet instruction includes a cold water pre-discharge instruction and a hot water discharge instruction; and the control valve 31 is controlled to open according to the water outlet instruction to conduct the cold water pre-discharge pipe 3, including: the control valve 31 is controlled to open according to the cold water pre-discharge instruction to conduct the cold water pre-discharge pipe 3 to discharge the residual cold water in the hot water pipe 1; and the control valve 31 is controlled to open according to the hot water discharge instruction to conduct the cold water pre-discharge pipe 3 to discharge the hot water in the hot water pipe 1.

[0102] The cold water pre-discharge pipe 3 can also discharge hot water with a higher temperature, which is hot water in the hot water pipe 1 and does not mix with the cold water in the cold water pipe 2. The temperature of the hot water can be higher than the water temperature during normal bathing of the user, which can reach more than 60℃, and can be used for foot soaking, herbal fumigation, etc. Compared with the existing thermostatic shower 6, due to the temperature control effect of the thermostatic valve, the maximum outlet water temperature is 49℃, which cannot meet the needs of users using higher temperature water.

[0103] Taking the case of the control device issuing an instruction after detecting the signal of the infrared sensor as an example: the user briefly waves his hand in front of the infrared sensor, the infrared sensor detects the user gesture signal, the control device issues a cold water pre-discharge instruction, the control valve 31 is opened, the cold water pre-discharge pipe 3 is conducted, and the cold water pre-discharge operation is performed.

[0104] The user places his hand in front of the infrared sensor for a long time, the infrared sensor detects the user gesture signal, the control device issues a hot water discharge instruction, the control valve 31 is opened, the cold water pre-discharge pipe 3 is conducted, and the hot water discharge operation is performed.

[0105] In an example embodiment, the method of controlling the control valve 31 to close according to the water-off instruction to close the cold water pre-discharge pipe 3 comprises: receiving the water-off instruction after the control valve 31 is controlled to open according to the hot water discharge instruction to open the cold water pre-discharge pipe 3; and performing the step of controlling the control valve 31 to close according to the water-off instruction to close the cold water pre-discharge pipe 3.

[0106] When the cold water pre-discharge pipe 3 is in the hot water discharge state, the cold water pre-discharge pipe 3 can be closed according to a water-off instruction issued by a user; when the cold water pre-discharge pipe 3 is in the cold water pre-discharge state, the cold water pre-discharge can be ended automatically according to a parameter detected by the temperature detection device 32.

[0107] When the control valve 31 is in the open state, the user briefly waves his hand in front of the infrared sensor, the infrared sensor detects the hand gesture signal, the control device issues a water-off instruction, the control valve 31 is closed, the cold water pre-discharge pipe 3 is closed, and the hot water discharge process is ended.

[0108] In an example embodiment, after the control valve 31 is controlled to open according to the cold water pre-discharge instruction to open the cold water pre-discharge pipe 3, the control method further comprises: determining whether a person enters the set range; and controlling the control valve 31 to close to turn off the cold water pre-discharge pipe 3 based on the person entering the set range.

[0109] The information of whether a person enters the set range is transmitted to the controller, and when it is detected that a user approaches the water outlet device, the cold water pre-discharge is paused to avoid the cold water or hot water discharged from the output end of the cold water pre-discharge pipe 3 from splashing on the user. When the user leaves the vicinity of the water outlet device, the cold water pre-discharge is continued.

[0110] In an example embodiment, the method of determining whether a person enters the set range comprises at least one of the following: determining whether a person enters the set range according to the detection result of the human body sensor; obtaining detection information of a bathroom device in communication connection with the water outlet device, and determining whether a person enters the set range according to the detection information; and obtaining detection information of a terminal device in communication connection with the water outlet device, and determining whether a person enters the set range according to the detection information.

[0111] The method of obtaining whether a person enters the set range can be various, such as: setting a human body sensor to detect whether a person enters the set range; or determining whether a person enters the set range according to the information of the bathroom device; or determining whether a person enters the set range according to the information of the terminal device.

[0112] The application also provides a control device, which comprises a processor, a memory, and a computer program stored in the memory and executable on the processor, and the computer program implements the steps of the control method when executed by the processor.

[0113] The embodiment of the present application also provides a shower, which comprises the control device.

[0114] In the description in the present application, it should be noted that the directions or position relations indicated by "upper", "lower", "one end", "one side" and the like are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated structure has a particular direction, is constructed and operated in a particular direction, and therefore cannot be understood as a limitation on the present application.

[0115] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "connection", "assembly" and "installation" should be understood in a broad sense, for example, the term "connection" can be fixed connection, can also be detachable connection, or integral connection; can be direct connection, can also be indirect connection through an intermediate medium, and can be internal communication of two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0116] The embodiments described in the present application are exemplary rather than limiting, and it is obvious to those skilled in the art that there can be more embodiments and implementation schemes within the scope of the embodiments described in the present application. Although many possible combinations of features are shown in the drawings and discussed in the specific embodiments, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment can be used in combination with any other feature or element of any other embodiment, or can replace any other feature or element of any other embodiment.

[0117] The present application includes and contemplates combinations of features and elements known to those skilled in the art. The embodiments, features and elements disclosed in the present application can also be combined with any conventional features or elements to form a unique technical solution defined by the claims. Any feature or element of any embodiment can also be combined with features or elements from other technical solutions to form another unique technical solution defined by the claims. Therefore, it should be understood that any feature shown and / or discussed in the present application can be implemented alone or in any appropriate combination. Therefore, the embodiments are not limited other than according to the limitations made according to the appended claims and their equivalent replacements. In addition, various modifications and changes can be made within the scope of protection of the appended claims.

Claims

1. A control method for a water outlet device, characterized by, The water outlet device comprises a hot water pipe, a cold water pipe, a cold water pre-discharge pipe, a control valve, a temperature detection device, a mixing valve and a mixed water outlet pipe; the mixing valve is a thermostatic valve; the hot water pipe and the cold water pipe are respectively arranged to deliver hot water and cold water; the input end of the cold water pre-discharge pipe is in communication with the hot water pipe, and the control valve is arranged on the cold water pre-discharge pipe; the temperature detection device is arranged on the cold water pre-discharge pipe and / or the hot water pipe; the first water inlet and the second water inlet of the mixing valve are in communication with the hot water pipe and the cold water pipe respectively, and the water outlet of the mixing valve is in communication with the mixed water outlet pipe; The control method comprises: obtaining the detection result of the temperature detection device; and controlling the on-off of the control valve according to the detection result or a water control instruction; The water control instruction comprises a water outlet instruction, and the water outlet instruction comprises a cold water pre-discharge instruction and a hot water discharge instruction; The control method comprises: controlling the control valve to open according to the cold water pre-discharge instruction to conduct the cold water pre-discharge pipe to discharge the residual cold water in the hot water pipe; and controlling the control valve to open according to the hot water discharge instruction to conduct the cold water pre-discharge pipe to discharge the hot water in the hot water pipe.

2. The control method according to claim 1, wherein The control method further comprises: detecting the opening and closing state of the mixing valve; and controlling the on-off of the control valve according to the opening and closing state of the mixing valve. The control method comprises: based on the mixing valve being in the open state, closing the control valve or keeping the control valve in the closed state, and locking the control valve in the closed state.

3. The control method according to claim 2, characterized by, The water outlet device further comprises a water flow sensor arranged on the cold water pipe, and / or the water outlet device further comprises a water flow sensor arranged on the mixed water outlet pipe. The detection of the opening and closing state of the mixing valve comprises:

4. The control method according to claim 2, characterized by, determining the opening and closing state of the mixing valve according to the detection result of the water flow sensor. The control of the on-off of the control valve according to the detection result comprises: based on the detection result satisfying a set closing condition, controlling the control valve to close to shut off the cold water pre-discharge pipe.

5. The control method according to claim 1, characterized by, The set closing condition comprises at least one of a first closing condition, a second closing condition and a third closing condition. The control of the on-off of the control valve according to the detection result comprises:

6. The control method according to claim 5, characterized by based on the detection result satisfying the first closing condition, determining that the cold water pre-discharge is normally ended, and controlling the control valve to close; based on the detection result satisfying the second closing condition, determining that a first cold water pre-discharge abnormal condition occurs, and controlling the control valve to close; and based on the detection result satisfying the third closing condition, determining that a second cold water pre-discharge abnormal condition occurs, and controlling the control valve to close. The first closing condition comprises: within a first set time, the water temperature detected by the temperature detection device is greater than or equal to a first set value. ​ ​ ​ 7. The control method according to claim 6, characterized by ​ The second closing condition comprises that the water temperature detected by the temperature detecting device is less than a second set value after a second set time; The third closing condition comprises that the water temperature detected by the temperature detecting device is less than a third set value after a third set time; The first set value is greater than the second set value, and the second set value is greater than the third set value; the first set time is less than the second set time, and the second set time is less than the third set time.

8. The control method according to any one of claims 1 to 7, characterized by, The water control instruction further comprises a water closing instruction, and the controlling the opening and closing of the control valve according to the water control instruction comprises: controlling the control valve to open according to the water outlet instruction to turn on the cold water pre-discharge pipe; controlling the control valve to close according to the water closing instruction to turn off the cold water pre-discharge pipe.

9. The control method according to claim 8, characterized by, The source of the water outlet instruction and the water closing instruction comprises at least one of the following: The water outlet instruction and the water closing instruction are instructions sent by a remote controller or a terminal device; The water outlet instruction and the water closing instruction are instructions input by a user through an interactive interface; The water outlet instruction and the water closing instruction are instructions triggered by a sensor after detecting a user action.

10. The control method according to claim 8, characterized by The controlling the control valve to close according to the water closing instruction to turn off the cold water pre-discharge pipe comprises: receiving the water closing instruction after controlling the control valve to open according to the hot water discharge instruction to turn on the cold water pre-discharge pipe; performing the step of controlling the control valve to close according to the water closing instruction to turn off the cold water pre-discharge pipe.

11. A control device characterized by comprising: The control device comprises a processor, a memory, and a computer program stored in the memory and executable on the processor, and the computer program is executed by the processor to implement the steps of the control method according to any one of claims 1 to 10.

12. A shower, characterised in that The control device according to claim 11. The control device according to claim 11.

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