CN115978806A - Control system and control method of water outlet device - Google Patents
Control system and control method of water outlet device Download PDFInfo
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- CN115978806A CN115978806A CN202111186125.4A CN202111186125A CN115978806A CN 115978806 A CN115978806 A CN 115978806A CN 202111186125 A CN202111186125 A CN 202111186125A CN 115978806 A CN115978806 A CN 115978806A
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Abstract
The specification relates to the technical field of water outlet devices, and provides a control system and a control method of the water outlet device, wherein the device comprises: the water using shunt valve is arranged on the water mixing pipeline; a mixed water drain valve arranged on the mixed water discharge pipeline; the water mixing and discharging pipeline is connected with the water mixing pipeline; a control unit for: controlling the opening of the mixed water drainage valve according to the mixed water temperature which does not reach the set water temperature; or the water distributing valve is controlled to be opened according to the mixed water temperature reaching the set water temperature. The embodiment of the specification can realize automatic discharge of low-temperature residual water before water consumption of a user, user experience is improved, and automatic control of the water temperature is more convenient, efficient and accurate.
Description
Technical Field
The specification relates to the technical field of water outlet devices, in particular to a control system and a control method of a water outlet device.
Background
At present, a central heating mode is used for many families, namely, the whole family only has one heat source, and the heat source is led to a bathroom, a kitchen and the like through a long connecting pipeline. For a water outlet device such as a handheld shower head, residual water exists after the handheld shower head and a connecting pipeline of the water outlet device are used for showering each time, the temperature of the residual water is low, and a user needs to manually discharge the residual water at low temperature in the handheld shower head and the connecting pipeline when taking a shower again, so that the use experience of the user is influenced.
Disclosure of Invention
An object of the embodiments of the present specification is to provide a control system and a control method for a water outlet apparatus, so as to achieve automatic discharge of low-temperature residual water before water is used by a user, and improve user experience.
In order to achieve the above object, in one aspect, an embodiment of the present specification provides a control system for a water outlet device, including:
the water using and dividing valve is arranged on the water mixing pipeline;
a mixed water drain valve arranged on the mixed water discharge pipeline; the water mixing and discharging pipeline is connected with the water mixing pipeline;
a control unit for: controlling the opening of the mixed water drainage valve according to the mixed water temperature which does not reach the set water temperature; or the water using and dividing valve is controlled to be opened according to the temperature of the mixed water reaching the set water temperature.
In an embodiment of the present specification, the control system further includes:
and the mixed water temperature sensor is used for acquiring the mixed water temperature of the mixed water pipeline.
In an embodiment of the present specification, the control system further includes:
and the thermostatic valve core is arranged on the water mixing pipeline.
In an embodiment of the present specification, the control system further includes:
the electric control water mixing component is electrically connected with the control unit, the cold water inlet end of the electric control water mixing component is connected with the cold water inlet pipeline, the hot water inlet end of the electric control water mixing component is connected with the hot water inlet pipeline, and the mixed water outlet end of the electric control water mixing component is connected with the mixed water pipeline;
the cold water temperature sensor is used for collecting the temperature of cold water in the cold water inlet pipeline;
the hot water temperature sensor is used for collecting the temperature of hot water in the hot water inlet pipeline;
the control unit is further configured to: and outputting a control signal for enabling the mixed water temperature to reach the set water temperature to the electric control water mixing component according to the cold water temperature and the hot water temperature.
In an embodiment of the specification, the outputting a control signal to the electrically controlled water mixing component according to the cold water temperature and the hot water temperature so that the mixed water temperature reaches a set water temperature includes:
determining a cold-hot water flow ratio required for enabling the mixed water temperature to reach a set water temperature according to the cold water temperature and the hot water temperature;
and outputting a valve opening control signal to the electric control water mixing component according to the cold-hot water flow ratio.
In an embodiment of the present specification, the control system further includes: the environment temperature sensor is used for acquiring the environment temperature of the water mixing pipeline;
the control unit is further configured to: and outputting a control signal for enabling the mixed water temperature to reach the set water temperature to the electric control water mixing component according to the cold water temperature, the hot water temperature and the environment temperature.
In an embodiment of the present disclosure, the outputting a control signal to the electrically-controlled water mixing component according to the cold water temperature, the hot water temperature, and the environment temperature to make the mixed water temperature reach a set water temperature includes:
performing temperature compensation on the set water temperature according to the environment temperature to generate a second set water temperature;
determining a cold-hot water flow ratio required for enabling the mixed water temperature to reach the second set water temperature according to the cold water temperature and the hot water temperature;
and outputting a valve opening control signal to the electric control water mixing component according to the cold and hot water flow ratio.
In an embodiment of the present specification, the performing temperature compensation on the set water temperature according to the environment temperature to generate a second set water temperature includes:
matching temperature compensation logic corresponding to the ambient temperature from a corresponding relation table between a preset ambient temperature interval and the temperature compensation logic;
and generating a second set water temperature according to the temperature compensation logic and the set water temperature.
In the embodiment of the present specification, the ith temperature compensation logic in the correspondence table is expressed as
Wherein +>
A second set water temperature, T, corresponding to the ith ambient temperature interval in To set the temperature, Δ T i And the compensation temperature corresponding to the ith environment temperature interval.
In an embodiment of the present specification, each compensation temperature in the correspondence table is inversely related to a corresponding ambient temperature interval.
In an embodiment of the present specification, the control system further includes: and the opening and closing detection element is used for detecting the opening and closing state of the handheld shower head switch valve and outputting a wake-up signal to the control unit according to the opening state of the handheld shower head switch valve.
On the other hand, the embodiment of the present specification further provides a control method of a water outlet device, including:
acquiring the water mixing temperature of a water mixing pipeline;
confirming whether the water temperature of the mixed water reaches the set water temperature;
when the water temperature of the mixed water does not reach the set water temperature, outputting an opening signal to a water mixing drainage valve so as to discharge the mixed water in the water mixing pipeline; or when the temperature of the mixed water reaches the set water temperature, outputting an opening signal to the water using shunt valve to use water.
In an embodiment of the present specification, before determining whether the mixed water temperature reaches the set water temperature, the method further includes:
acquiring the cold water temperature of a cold water inlet pipeline and the hot water temperature of a hot water inlet pipeline;
and outputting a control signal for enabling the mixed water temperature to reach the set water temperature to the electric control water mixing component according to the cold water temperature and the hot water temperature.
In an embodiment of the present specification, outputting a control signal for making the mixed water temperature reach a set water temperature to an electrically controlled water mixing component according to the cold water temperature and the hot water temperature includes:
determining a cold-hot water flow ratio required for enabling the mixed water temperature to reach a set water temperature according to the cold water temperature and the hot water temperature;
and outputting a valve opening control signal to the electric control water mixing component according to the cold-hot water flow ratio.
In an embodiment of the present specification, before determining whether the mixed water temperature reaches the set water temperature, the method further includes:
acquiring the temperature of cold water in a cold water inlet pipeline, the temperature of hot water in a hot water inlet pipeline and the ambient temperature of a water mixing pipeline;
and outputting a control signal for enabling the temperature of the mixed water to reach a set water temperature to an electric control water mixing component according to the temperature of the cold water, the temperature of the hot water and the ambient temperature.
In an embodiment of the present disclosure, outputting a control signal to an electrically controlled water mixing component according to the cold water temperature, the hot water temperature, and the ambient temperature to make the mixed water temperature reach a set water temperature includes:
performing temperature compensation on the set water temperature according to the environment temperature to generate a second set water temperature;
determining a cold-hot water flow ratio required for enabling the mixed water temperature to reach the second set water temperature according to the cold water temperature and the hot water temperature;
and outputting a valve opening control signal to the electric control water mixing component according to the cold-hot water flow ratio.
In an embodiment of the present specification, the performing temperature compensation on the set water temperature according to the environment temperature to generate a second set water temperature includes:
matching temperature compensation logic corresponding to the ambient temperature from a corresponding relation table between a preset ambient temperature interval and the temperature compensation logic;
and generating a second set water temperature according to the temperature compensation logic and the set water temperature.
In the embodiments of the present specification, the ith temperature compensation logic in the correspondence table is expressed as
Wherein it is present>
A second set water temperature, T, corresponding to the ith ambient temperature interval in To set the temperature, Δ T i And the compensation temperature corresponding to the ith environment temperature interval.
As can be seen from the technical solutions provided by the embodiments of the present specification, in the embodiments of the present specification, when the temperature of the mixed water in the mixed water pipeline does not reach the set water temperature, the mixed water drain valve on the mixed water discharge pipeline can be controlled to open, so that the mixed water in the mixed water pipeline is discharged through the mixed water discharge pipeline; when the temperature of the mixed water in the mixed water pipeline reaches the set temperature, an opening signal is output to the water using shunt valve so as to use water. Because the water (including the surplus water) that does not reach the setting temperature in the water mixing pipeline is drained in advance for the suitable water of the direct output temperature of water installation (reach the water of setting temperature promptly) when the user uses water, thereby improved user experience. Moreover, for among the conventional art, the manual work is fallen low temperature surplus water and is judged whether the temperature is suitable according to artificial experience, and the temperature automatic control of this description embodiment is more convenient, high-efficient and accurate.
Drawings
In order to more clearly illustrate the embodiments of the present specification or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments described in the present specification, and for those skilled in the art, other drawings may be obtained according to these drawings without creative efforts. In the drawings:
FIG. 1 shows a schematic structural view of a shower device in some embodiments of the present description;
FIG. 2 shows a schematic structural view of a shower device in further embodiments of the present description;
FIG. 3 shows a block diagram of a control system of the hand-held shower in some embodiments of the present description;
FIG. 4 is a diagram illustrating a table of correspondence between an ambient temperature range and temperature compensation logic in an embodiment of the present disclosure;
FIG. 5 illustrates a flow chart of a method of controlling a handheld showerhead in some embodiments of the present description;
FIG. 6 is a schematic diagram showing the change of the outlet water temperature of the hand-held shower head in the prior art;
FIG. 7 is a schematic diagram illustrating the change of the outlet water temperature of the handheld shower in an exemplary embodiment of the present disclosure;
[ instruction of reference ]
1. A water mixing pipeline;
2. a lower water outlet pipeline;
3. a mixed water discharging pipeline;
4. a hand-held shower outlet pipeline;
5. a water mixing and draining valve;
6. a mixed water temperature sensor;
7. the shower head shunt valve is held by hand;
8. an electric control water mixing component;
9. a cold water temperature sensor;
10. a hot water temperature sensor;
11. a cold water inlet pipeline;
12. a hot water inlet line;
13. a hand-held shower switch valve;
14. a lower water outlet shunt valve;
15. a flow sensor;
16. a control unit;
17. an opening/closing detection element;
18. an ambient temperature sensor;
19. a human-machine interface;
20. and a power supply module.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present specification, the technical solutions in the embodiments of the present specification will be clearly and completely described below with reference to the drawings in the embodiments of the present specification, and it is obvious that the described embodiments are only a part of the embodiments of the present specification, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present specification without making any creative effort shall fall within the protection scope of the present specification.
For example, in some descriptions, a first component is connected to a second component, which may include embodiments in which the first component and the second component are connected in direct contact, embodiments in which the first component and the second component are connected in non-direct contact (i.e., additional components may be included between the first component and the second component), and so on.
Furthermore, for ease of description, spatially relative terms such as "above …," "below …," "top," "below" and the like may be used in some descriptions to describe the relationship of one element or component to another (or other) elements or components as illustrated in the various figures of the embodiments. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or components described as "below" or "beneath" other elements or components would then be oriented "above" or "over" the other elements or components.
The control system of the water outlet device in the embodiment of the specification can be applied to water outlet devices such as a shower head and a faucet. It should be noted that the following embodiments of the present disclosure are described with reference to a handheld shower head as an example; those skilled in the art will appreciate that a hand-held shower is merely exemplary; in other embodiments, the control system of the water outlet device may also be applied to other water outlet devices such as a faucet, which is not limited in this specification, and may be specifically selected according to needs.
In view of the problems that in the conventional shower device, because the handheld shower head and the connecting pipeline have residual water after each shower, and the temperature of the residual water is low, when a user takes a shower again, the user needs to manually discharge the low-temperature residual water in the handheld shower head and the connecting pipeline, so that the use experience of the user is affected, the embodiment of the specification provides an improved shower device. The shower equipment is provided with a control system of the handheld shower head, when the temperature of mixed water in the mixed water pipeline does not reach a set water temperature, the control system of the handheld shower head can control the opening of a mixed water drainage valve on the mixed water discharging pipeline so as to discharge the mixed water in the mixed water pipeline through the mixed water discharging pipeline; when the temperature of the mixed water in the mixed water pipeline reaches the set temperature, the opening signal is output to the water distributing valve of the hand-held shower head so as to carry out hand-held shower. Because the water (including the surplus water) that does not reach the set temperature in the muddy water pipeline is drained in advance for shower equipment's handheld gondola water faucet direct output temperature is suitable water (reach the water of set temperature promptly), thereby has improved user experience. Moreover, for among the conventional art, the manual work is fallen low temperature surplus water and is judged whether suitable according to artifical experience the temperature, and the temperature automatic control of this description embodiment is more convenient, high-efficient and accurate.
Referring to fig. 1 and 3, in some embodiments, the shower apparatus may include a mixing pipe 1, a waste mixing pipe 3, a hand-held shower outlet pipe 4, an electrically controlled mixing part 8, a control unit 16, and the like. The electrically controlled water mixing component 8 is electrically connected to the control unit 16, so that the electrically controlled water mixing component 8 can mix water under the control of the control unit 16. The electric control water mixing component 8 is provided with a water mixing water outlet end, a cold water inlet end and a hot water inlet end; the water mixing and discharging end of the electric control water mixing component 8 can be connected with the water mixing pipeline 1; the cold water inlet end of the electric control water mixing component 8 can be connected with a cold water inlet pipeline 11, and the hot water inlet end of the electric control water mixing component 8 can be connected with a hot water inlet pipeline 12; the electric control water mixing component 8 can mix cold water and hot water to form mixed water with the water temperature lower than that of the hot water and higher than that of the cold water. In some embodiments, the electrically controlled water mixing component 8 may be a water mixing motor or an electric water mixing valve, etc.
In the embodiments of the present description, the electrical connection may be a wired electrical connection through a control line, a data line, or the like, or may be a wireless connection; the wireless connection is to establish a wireless communication link between the two parties (for example, the control unit 16 and the electronically controlled water mixing component 8) by using a wireless communication technology. The "electrical connection" appearing in other parts of the specification may refer to the explanation, and is not described in detail.
In the embodiments of the present specification, cold water refers to normal temperature water (e.g., normal temperature tap water), and hot water refers to water (e.g., water having a temperature of 45 ℃, 50 ℃, 60 ℃, etc.) which is supplied from a heat source (i.e., hot water supply device) through the hot water inlet line 12 and has a temperature higher than that of the normal temperature water. The heat source may be, for example, an electric water heater, a gas water heater, a wall-mounted gas boiler, or an air-source water heater.
The water outlet end of the water mixing pipeline 1 is connected with the water outlet pipeline 4 of the handheld shower head. A hand-held shower water distribution valve 7 is arranged on the hand-held shower water outlet pipeline 4; the hand-held shower water distribution valve 7 is used for realizing the connection and disconnection between the water mixing pipeline 1 and the hand-held shower water outlet pipeline 4; the hand-held shower shunt valve 7 is electrically connected with the control unit 16, so that the hand-held shower shunt valve 7 can be opened or closed under the control of the control unit 16. In some embodiments, the handheld shower shunt valve 7 may be a controllable valve such as a solenoid valve.
The water outlet end of the water mixing pipeline 1 is also connected with the water discharging and mixing pipeline 3. A mixed water drain valve 5 is arranged on the mixed water discharge pipeline 3; the mixed water drain valve 5 is used for realizing the connection and disconnection between the mixed water pipeline 1 and the mixed water draining pipeline 3; the mixing and draining valve 5 is electrically connected to the control unit 16, so that the mixing and draining valve 5 can be opened or closed under the control of the control unit 16. In some embodiments, the mixing and draining valve 5 may be a controllable valve such as a solenoid valve.
In other embodiments, as shown in connection with fig. 2, the shower device may further comprise a lower water outlet line 2 (typically for a bath). The water outlet end of the water mixing pipeline 1 can also be connected with the lower water outlet pipeline 2. The lower water outlet pipeline 2 is provided with a lower water outlet shunt valve 14; the lower water outlet shunt valve 14 is used for realizing the connection and disconnection between the water mixing pipeline 1 and the lower water outlet pipeline 2; the lower effluent diverter valve 14 is electrically connected to the control unit 16, so that the lower effluent diverter valve 14 can also perform an opening or closing action under the control of the control unit 16. In some embodiments, the lower effluent diverter valve 14 may also be a controllable valve such as a solenoid valve.
In order to simplify the structure, the lower water outlet pipeline 2 can be connected with the water discharge and mixing pipeline 3, so that the lower water outlet of the lower water outlet pipeline 2 can be used as a mixing water discharge port of the water discharge and mixing pipeline 3. Those skilled in the art will appreciate that this is merely an exemplary illustration, and in other embodiments, the mixing and water discharging pipeline 3 may be provided with a separate mixing and water discharging port according to the requirement; in other embodiments, the mixed water discharging pipeline 3 can be connected with the cold water inlet pipeline 11, so as to recycle the water which does not reach the set water temperature, thereby being beneficial to saving water resources.
The control unit 16 may include a controller or a control board integrated with the controller, or the like. The controller may include, but is not limited to, a single chip, a Microprocessor (MCU), a Digital Signal Processor (DSP), and the like.
The mixed water pipeline 1 is provided with a mixed water temperature sensor 6, and the mixed water temperature sensor 6 is electrically connected with the control unit 16. The mixed water temperature sensor 6 can be used for collecting the mixed water temperature of the mixed water pipeline 1 and outputting the mixed water temperature to the control unit 16 in the form of an electric signal. In some embodiments, the control system of the handheld showerhead may include a control unit 16, a handheld showerhead shunt valve 7, a mixed water drain valve 5, and a mixed water temperature sensor 6.
When the control unit 16 receives an electrical signal indicative of the temperature of the mixed water, it may compare this electrical signal with a reference signal indicative of the set temperature; when the temperature of the mixed water does not reach the set water temperature, the control unit 16 sends an opening control signal to the mixed water drain valve 5 to control the mixed water drain valve 5 to open so as to drain the mixed water in the mixed water pipeline 1 through the mixed water discharging pipeline 3; when the temperature of mixed water reaches the set temperature, an opening control signal is sent to the handheld shower water diversion valve 7 to control the handheld shower water diversion valve 7 to open so as to facilitate handheld shower.
It should be noted that in the embodiments of the present specification, "the mixed water temperature reaches the set water temperature" means that the mixed water temperature is the same as or substantially the same as the set water temperature, and the like; wherein, substantially the same means: the difference value between the mixed water temperature and the set water temperature is not more than a set allowable range (for example, not more than 1 ℃ and the like).
Further, in order to prevent the mixed water having reached the set water temperature from being discharged through the mixed water discharge line 3, a closing control signal may be sent to the mixed water discharge valve 5 when the mixed water temperature reaches the set water temperature. Obviously, it can be seen from the above description that, during the process of performing the power-on initialization by the control system of the handheld shower, the mixed water drain valve 5, the handheld shower diversion valve 7 and the lower water diversion valve 14 are all closed, that is, the mixed water drain valve 5, the handheld shower diversion valve 7 and the lower water diversion valve 14 are all in a closed state when the power-on initialization is completed, so as to avoid mistaken drainage.
In some embodiments, the control system may further include a thermostatic cartridge (not shown) disposed on the mixing line 1. The thermostatic valve core automatically adjusts the mixing ratio of cold water and hot water, so that the temperature of mixed water can be automatically kept at a set temperature; the thermostatic valve core is in a closed state in a normal state, so that the water mixing pipeline 1 is in a closed state; when the temperature of the mixed water reaches the set temperature, the thermostatic valve core is opened, so that the mixed water pipeline 1 is in an open state. In one embodiment, the thermostatic valve core can adopt a shape memory alloy spring as a temperature sensing element, so that the shape memory alloy spring is used as the temperature sensing element and also has the function of pushing the piston to adjust the mixing of cold water and hot water, and the mixed water can also pass through the spring, thereby saving the space and enabling the structure of the thermostatic valve core to become more compact.
With continued reference to fig. 1-3, in some embodiments, the control system of the handheld showerhead may further include a cold water temperature sensor 9 and a hot water temperature sensor 10; the cold water temperature sensor 9 is arranged on the cold water inlet pipeline 11, and the hot water temperature sensor 10 is arranged on the hot water inlet pipeline 12; the cold water temperature sensor 9 and the hot water temperature sensor 10 are respectively electrically connected with the control unit 16. The cold water temperature sensor 9 can be used for collecting the temperature of cold water in the cold water inlet pipeline 11 and outputting the temperature of the cold water to the control unit 16 in the form of an electric signal; the hot water temperature sensor 10 can be used for collecting the temperature of the hot water in the hot water inlet pipeline 12 and outputting the temperature of the hot water to the control unit 16 in the form of an electric signal; in this way, the control unit 16 can output a control signal to the electrically controlled water mixing part 8 according to the cold water temperature and the hot water temperature, so that the mixed water temperature reaches the set water temperature. Wherein, according to cold water temperature and hot water temperature, to automatically controlled water mixing component 8 output make the control signal who mixes water temperature and reach the settlement temperature, can include: determining a cold-hot water flow ratio required for enabling the mixed water temperature to reach a set water temperature according to the cold water temperature and the hot water temperature; and outputting a valve opening control signal to the electric control water mixing component 8 according to the flow ratio of the cold water to the hot water. The cold-hot water flow ratio refers to a mixing ratio of the hot water flow and the cold water flow of the electric control water mixing component 8.
Because the hot water flow of the electric control water mixing component 8 is in a direct proportion relation with the water temperature of the mixed water, for hot water with different temperatures, the direct proportion relation curves of the hot water flow and the water temperature of the mixed water are different; similarly, the cold water flow rate of the electric control water mixing component 8 and the water temperature of the mixed water are in an inverse proportion relation, and for the cold water with different temperatures, the inverse proportion relation curve of the cold water flow rate and the water temperature of the mixed water is also different. Therefore, on the premise that the hot water temperature and the cold water temperature are determined, the hot water flow and the cold water flow are mixed in different proportions, and the mixed water temperatures are different. According to the principle, a mapping relation curve between the mixing proportion and the mixed water temperature under any combination of hot water temperature and cold water temperature can be generated in advance. The mixing proportion can be realized by adjusting the opening degree of a water inlet valve of the electric control water mixing component 8. Therefore, when the cold water temperature and the hot water temperature are determined, the corresponding mapping relation curve can be matched according to the combination of the cold water temperature and the hot water temperature, then the mixing proportion corresponding to the set water temperature can be found from the matched mapping relation curve, the valve opening control signal is generated according to the mixing proportion, and the corresponding valve opening control signal is output to the electric control water mixing component 8, so that the purpose of adjusting the water mixing temperature is achieved.
In some embodiments, the control of generating the valve opening control signal according to the mixing ratio and outputting the corresponding valve opening control signal to the electrically controlled water mixing component 8 may be implemented based on PID (proportional Integral Differential) regulation. For example, in an exemplary embodiment, taking the electrically controlled water mixing component 8 as a water mixing motor as an example, when the control system of the handheld shower head is powered on and initialized, the control unit 16 controls the water mixing motor to reset to an initial position, so as to adjust and control the number of step steps of the water mixing motor based on the real-time acquired water mixing temperature PID, that is, to control the valve opening of the water mixing motor by using PID adjustment.
With continued reference to fig. 3, the change of the ambient temperature may affect the temperature of the mixed water, and in order to achieve precise control of the temperature of the mixed water, in another embodiment, the control system of the handheld shower may further include an ambient temperature sensor 18; the ambient temperature sensor 18 may be used to collect the ambient temperature of the water mixing pipeline 1; correspondingly, the control unit 16 may also output a control signal to the electrically controlled water mixing component 8 according to the cold water temperature, the hot water temperature and the ambient temperature, so that the mixed water temperature reaches the set water temperature. Wherein, according to cold water temperature, hot water temperature and ambient temperature, export the control signal who makes muddy water temperature reach the settlement temperature to automatically controlled muddy water part, can include: performing temperature compensation on the set water temperature according to the environment temperature to generate a second set water temperature; determining a cold-hot water flow ratio required for enabling the mixed water temperature to reach a second set water temperature according to the cold water temperature and the hot water temperature; and outputting a valve opening control signal to the electric control water mixing component according to the cold-hot water flow ratio.
In some embodiments, the temperature compensating the set water temperature according to the ambient temperature to generate the second set water temperature may include: matching temperature compensation logics corresponding to the ambient temperatures from a corresponding relation table between a preset ambient temperature interval and the temperature compensation logics; and generating a second set water temperature according to the temperature compensation logic and the set water temperature. In the above correspondence table, the ith temperature compensation logic can be expressed as
Wherein +>
A second set water temperature, T, corresponding to the ith ambient temperature interval in To set the temperature, Δ T i Compensation temperature (Delta T) corresponding to ith environment temperature interval i Not less than 0). For example, in the correspondence table shown in fig. 4, five temperature compensation logics are provided in one-to-one correspondence with five ambient temperature sections. If the currently detected ambient temperature is 8 ℃, according to the corresponding relation table shown in fig. 4, the current ambient temperature is within the ambient temperature range 0 < T a Within the range of less than or equal to 10 ℃, the temperature compensation logic T corresponding to 8 ℃ can be matched in +Δt2。
In the above correspondence table, the compensation temperature in each temperature compensation logic may be preset according to the following rule: each compensation temperature in the corresponding relation table is inversely related to the corresponding environment temperature interval; i.e. the lower the ambient temperature, the larger the compensation temperature. For example, in an exemplary embodiment, taking the correspondence table shown in fig. 4 as an example, according to such a setting rule, Δ t1 > Δ t2 > Δ t3 > Δ t4.
Referring to fig. 6 and 7, fig. 6 is a schematic diagram illustrating the change of the outlet water temperature of the hand-held shower head in the prior art; FIG. 7 is a schematic diagram illustrating the change of the outlet water temperature of the handheld shower in an exemplary embodiment of the present disclosure; in fig. 6 and 7, the ordinate represents the mixed water temperature of the hand-held shower head. As can be seen by comparing fig. 6 and fig. 7, based on the control system of the handheld shower in the embodiments of the present specification, the mixed water temperature of the handheld shower is more stable.
In some embodiments, control unit 16 may be a low power control unit that is normally (i.e., not used by the user in a shower) in a sleep state to reduce power consumption. Accordingly, referring to fig. 1 to 3, the control system of the hand shower may further include an open/close detection element 17; the opening/closing detection element 17 is provided on or near the hand-held shower opening/closing valve 13. Wherein, handheld gondola water faucet ooff valve 13 is the operation object of the handheld gondola water faucet switch of user control, can manually open handheld gondola water faucet ooff valve 13 when the user needs to take a shower, when the user accomplishes the shower or need not take a shower temporarily, can manually close handheld gondola water faucet ooff valve 13. The on-off detection element 17 can be used for detecting the on-off state of the handheld shower switch valve 13 and determining whether to output a wake-up signal to the control unit 16 according to the detected on-off state; when the opening state of the handheld shower switch valve 13 is detected, a wake-up signal may be output to the control unit 16 to wake up the control unit 16; upon receiving the wake-up signal transmitted from the open/close detection element 17, the control unit 16 switches from the sleep state to the operation state. So, can make shower equipment only need take a shower (being in the on-state promptly to handheld gondola water faucet ooff valve 13) down at the user, just arrange the muddy water (including the residual water) that does not reach the settlement temperature to can avoid extravagant water resource.
In some embodiments, the open/close detection element 17 may be a contact type position sensor or a proximity type position sensor or the like. The contact position sensor may be, for example, a travel switch; the proximity position sensor may be, for example, an electromagnetic position sensor, an optoelectronic position sensor, a reed switch, a hall sensor, or the like.
Referring to fig. 1-3, the control system of the handheld showerhead may further include a flow sensor 15; the flow sensor 15 is disposed on the water mixing pipeline 1 and electrically connected to the control unit 16. The flow sensor 15 may be configured to collect a mixed water flow of the mixing pipeline 1 and output the mixed water flow to the control unit 16 in the form of an electrical signal. In some embodiments, the control unit 16 may generate statistical information about the water usage amount according to the water mixing flow amount, and may display the statistical information in real time through the display module to remind the user to save water. In other embodiments, the control unit 16 may also perform a shower device malfunction detection based on the amount of mixing water (e.g., to indirectly assist in detecting whether the electrically controlled mixing element 8, the respective diverter valve, and the mixing and draining valve 5 are damaged, etc.). If within a specified time after the user opens the handheld shower head switch valve 13, the mixed water flow detected by the flow sensor 15 is zero (or almost zero), then the control unit 16 can determine that the electric control water mixing component 8, each water dividing valve or the water mixing drain valve 5 may have faults, and the control unit 16 can output a fault alarm (for example, output a fault alarm text message through the display module) so as to remind the user of overhauling.
Referring to fig. 3, the control system of the handheld shower head may further include a human-machine interface 19, and the human-machine interface 19 may be electrically connected to the control unit 16 for outputting a control signal for water temperature setting or function control (e.g., on-off control, bath mode selection, etc.) to the control unit 16 according to a user input. In some embodiments, the human machine interface 19 may be a mechanical or touch-control electronic control board mounted on the shower device. In other embodiments, the human machine interface 19 may be a wireless remote control, which may communicate wirelessly with the control unit 16. In other embodiments, the human machine interface 19 may also be a client (APP), which may communicate with the control unit 16 via a communication link. Therefore, the water temperature setting or function control can be remotely (or off-site) carried out by the user through the client. Further, the control unit 16 may memorize and store the set water temperature set by the user, so that it is not necessary to perform the water temperature setting operation every time a shower is taken.
Referring to fig. 3, the control system of the handheld showerhead may further include a power supply module 20; the power module 20 may be used to power the control system of the hand-held shower. In some embodiments, the power supply module 20 may be a flyback isolation power supply or a lithium battery, which may be beneficial to simplifying a circuit structure of a control system of the handheld shower head and reducing implementation cost. The lithium battery can be a lithium battery with a wireless charging function, so that charging is convenient, and the electricity utilization safety in wet environments such as a toilet and a shower room is improved.
The specification also provides a control method of the handheld shower head applicable to the control system, and particularly, the control method of the handheld shower head can be applied to the control unit side of the control system. Referring to fig. 5, in some embodiments, the control method of the handheld shower may include the steps of:
s501, the water mixing temperature of the water mixing pipeline is obtained.
S502, determining whether the water mixing temperature reaches the set water temperature.
And S503, when the water temperature of the mixed water does not reach the set water temperature, outputting an opening signal to the water mixing and drainage valve to discharge the mixed water in the water mixing pipeline.
And S504, outputting an opening signal to the water diversion valve of the handheld shower head when the water mixing temperature reaches the set water temperature so as to carry out handheld shower.
In the method embodiment of the present description, when the temperature of the mixed water in the mixed water pipeline does not reach the set water temperature, the mixed water drain valve on the mixed water discharge pipeline may be controlled to open, so as to drain the mixed water in the mixed water pipeline through the mixed water discharge pipeline; when the temperature of the mixed water in the mixed water pipeline reaches the set temperature, the opening signal is output to the water distributing valve of the hand-held shower head so as to carry out hand-held shower. Because the water (including the surplus water) that does not reach the set temperature in the muddy water pipeline is drained in advance for shower equipment's handheld gondola water faucet direct output temperature is suitable water (reach the water of set temperature promptly), thereby has improved user experience. Moreover, for among the conventional art, the manual work is fallen low temperature surplus water and is judged whether suitable according to artifical experience the temperature, and the temperature automatic control of this description embodiment is more convenient, high-efficient and accurate.
In some embodiments, obtaining the temperature of the mixed water in the mixing pipeline refers to: and receiving an electric signal which is sent by the mixed water temperature sensor and used for representing the temperature of the mixed water. In the embodiments of the present specification, the electrical signal may be a voltage signal, a current signal, or an electromagnetic wave signal.
Furthermore, in order to prevent the mixed water reaching the set water temperature from being discharged by the mixed water discharging pipeline, when the mixed water temperature reaches the set water temperature, a closing control signal can be sent to the mixed water discharging valve. In addition, at the control system execution power-on initialization's of handheld gondola water faucet in-process, mix water drain valve, handheld gondola water faucet shunt valve and go out the water shunt valve down and all be closed, mix water drain valve, handheld gondola water faucet shunt valve and go out the water shunt valve all in the closed condition under accomplishing power-on initialization promptly to avoid the mistake drainage.
In some embodiments, before confirming whether the mixed water temperature reaches the set water temperature, the control method of the handheld shower head may further include the following steps:
(1) And acquiring the cold water temperature of the cold water inlet pipeline and the hot water temperature of the hot water inlet pipeline. Wherein, the water temperature of the cold water pipeline is obtained by: receiving an electric signal which is sent by a cold water temperature sensor and used for representing the temperature of cold water; obtaining the temperature of the hot water in the hot water inlet pipeline means: and receiving an electric signal which is sent by the hot water temperature sensor and used for representing the temperature of the hot water.
(2) And outputting a control signal for enabling the temperature of the mixed water to reach the set water temperature to the electric control water mixing component according to the temperature of the cold water and the temperature of the hot water.
In some embodiments, outputting a control signal to the electrically controlled water mixing component according to the temperature of the cold water and the temperature of the hot water to make the temperature of the mixed water reach a set temperature may specifically include:
(1) And determining the cold-hot water flow ratio required for enabling the mixed water temperature to reach the set water temperature according to the cold water temperature and the hot water temperature.
(2) And outputting a valve opening control signal to the electric control water mixing component according to the cold and hot water flow ratio.
In some embodiments, before determining whether the mixed water temperature reaches the set water temperature, the control method of the handheld shower head may further include:
(1) And acquiring the cold water temperature of the cold water inlet pipeline, the hot water temperature of the hot water inlet pipeline and the ambient temperature of the mixed water pipeline. Wherein, the ambient temperature of obtaining the muddy water pipeline means: and receiving an electric signal which is sent by the ambient temperature sensor and used for representing the ambient temperature of the water mixing pipeline.
(2) And outputting a control signal for enabling the mixed water temperature to reach the set water temperature to the electric control water mixing component according to the cold water temperature, the hot water temperature and the environment temperature.
In some embodiments, depending on the cold water temperature, the hot water temperature and the ambient temperature, outputting a control signal for enabling the mixed water temperature to reach the set water temperature to the electric control water mixing component, and specifically comprising:
(1) And performing temperature compensation on the set water temperature according to the ambient temperature to generate a second set water temperature.
(2) And determining the cold-hot water flow ratio required for enabling the mixed water temperature to reach a second set water temperature according to the cold water temperature and the hot water temperature.
(3) And outputting a valve opening control signal to the electric control water mixing component according to the cold-hot water flow ratio.
In some embodiments, the temperature compensating the set water temperature according to the ambient temperature to generate the second set water temperature may specifically include:
(1) Matching temperature compensation logics corresponding to the ambient temperature from a corresponding relation table between a preset ambient temperature interval and the temperature compensation logics;
(2) And generating a second set water temperature according to the temperature compensation logic and the set water temperature.
In some embodiments, the ith temperature compensation logic in the correspondence table is represented as
Wherein it is present>
A second set water temperature, T, corresponding to the ith ambient temperature interval in To set the temperature, Δ T i And the compensation temperature corresponding to the ith environment temperature interval.
In some embodiments, each compensation temperature in the correspondence table is inversely related to the corresponding ambient temperature interval.
In some embodiments, before obtaining the mixed water temperature of the mixed water pipeline, the control method of the handheld shower head may further include:
and when receiving a wake-up signal sent by the switching detection element, converting the state from the dormant state into the working state. In other words, the control unit is in a sleep state in a normal state to reduce power consumption; when receiving the wake-up signal sent by the switching detection element, the control unit is switched from the dormant state to the working state. So, can make shower equipment only need shower down at the user, just arrange the muddy water (including the surplus water) that does not reach the setting water temperature to can avoid extravagant water resource.
It should also be understood that, in the embodiment of the present specification, the term "and/or" is only one kind of association relation describing an associated object, and means that three kinds of relations may exist. For example, a and/or B, may represent: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.
It should also be noted that the terms "comprises", "comprising" or any other variation thereof are intended to cover a non-exclusive inclusion, so that a device or apparatus including a series of elements includes not only those elements but also other elements not explicitly listed or inherent to such device or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of another identical element in a device or apparatus that comprises the element.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, as for the method embodiment, since it is substantially similar to the apparatus embodiment, the description is simple, and the relevant points can be referred to the partial description of the apparatus embodiment.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the specification. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art to which the present application pertains. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (16)
1. A control system for a water outlet device, comprising:
the water using shunt valve is arranged on the water mixing pipeline;
a mixed water drain valve arranged on the mixed water discharge pipeline; the water-mixing discharge pipeline and the water mixing pipelines are connected;
a control unit for: controlling the opening of the mixed water drainage valve according to the temperature of the mixed water which does not reach the set water temperature; or the water distributing valve is controlled to be opened according to the mixed water temperature reaching the set water temperature.
2. The control system of claim 1, further comprising:
and the mixed water temperature sensor is used for acquiring the mixed water temperature of the mixed water pipeline.
3. The control system of claim 1, further comprising:
and the thermostatic valve core is arranged on the water mixing pipeline.
4. The control system of claim 2, further comprising:
the electric control water mixing component is electrically connected with the control unit, the cold water inlet end of the electric control water mixing component is connected with the cold water inlet pipeline, the hot water inlet end of the electric control water mixing component is connected with the hot water inlet pipeline, and the mixed water outlet end of the electric control water mixing component is connected with the mixed water pipeline;
the cold water temperature sensor is used for collecting the temperature of cold water in the cold water inlet pipeline;
the hot water temperature sensor is used for collecting the temperature of hot water in the hot water inlet pipeline;
the control unit is further configured to: and outputting a control signal for enabling the mixed water temperature to reach a set water temperature to the electric control water mixing component according to the cold water temperature and the hot water temperature.
5. The control system of claim 4, wherein outputting the control signal to the electrically controlled water mixing component to make the mixed water temperature reach the set water temperature according to the cold water temperature and the hot water temperature comprises:
determining a cold-hot water flow ratio required for enabling the mixed water temperature to reach a set water temperature according to the cold water temperature and the hot water temperature;
and outputting a valve opening control signal to the electric control water mixing component according to the cold-hot water flow ratio.
6. The control system of claim 4, further comprising:
the environment temperature sensor is used for acquiring the environment temperature of the water mixing pipeline;
the control unit is further configured to: and outputting a control signal for enabling the mixed water temperature to reach the set water temperature to the electric control water mixing component according to the cold water temperature, the hot water temperature and the environment temperature.
7. The control system of claim 6, wherein outputting the control signal to the electrically controlled water mixing component to make the mixed water temperature reach the set water temperature according to the cold water temperature, the hot water temperature and the ambient temperature comprises:
performing temperature compensation on the set water temperature according to the environment temperature to generate a second set water temperature;
determining a cold-hot water flow ratio required for enabling the mixed water temperature to reach the second set water temperature according to the cold water temperature and the hot water temperature;
and outputting a valve opening control signal to the electric control water mixing component according to the cold-hot water flow ratio.
8. The control system of claim 7, wherein said temperature compensating the set water temperature based on the ambient temperature to generate a second set water temperature comprises:
matching temperature compensation logic corresponding to the ambient temperature from a corresponding relation table between a preset ambient temperature interval and the temperature compensation logic;
and generating a second set water temperature according to the temperature compensation logic and the set water temperature.
9. The control system of claim 8, wherein the ith temperature compensation logic in the correspondence table is represented by T i incrl ＝T in +ΔT i Wherein, T i incrl A second set water temperature, T, corresponding to the ith ambient temperature interval in To set the temperature, Δ T i And the compensation temperature corresponding to the ith environment temperature interval.
10. A control method of a water outlet device is characterized by comprising the following steps:
acquiring the water mixing temperature of a water mixing pipeline;
confirming whether the water temperature of the mixed water reaches the set water temperature;
when the water temperature of the mixed water does not reach the set water temperature, outputting an opening signal to a water mixing drainage valve so as to discharge the mixed water in the water mixing pipeline; or when the temperature of the mixed water reaches the set water temperature, outputting an opening signal to the water using shunt valve to use water.
11. The control method of claim 10, further comprising, before confirming whether the mixed water temperature reaches the set water temperature:
acquiring the cold water temperature of a cold water inlet pipeline and the hot water temperature of a hot water inlet pipeline;
and outputting a control signal for enabling the mixed water temperature to reach the set water temperature to the electric control water mixing component according to the cold water temperature and the hot water temperature.
12. The control method according to claim 11, wherein outputting the control signal for bringing the temperature of the mixed water to the set water temperature to the electrically controlled water mixing component according to the temperature of the cold water and the temperature of the hot water comprises:
determining a cold-hot water flow ratio required for enabling the mixed water temperature to reach a set water temperature according to the cold water temperature and the hot water temperature;
and outputting a valve opening control signal to the electric control water mixing component according to the cold-hot water flow ratio.
13. The control method of claim 10, further comprising, before confirming whether the mixed water temperature reaches the set water temperature:
acquiring the temperature of cold water in a cold water inlet pipeline, the temperature of hot water in a hot water inlet pipeline and the ambient temperature of a water mixing pipeline;
and outputting a control signal for enabling the temperature of the mixed water to reach a set water temperature to an electric control water mixing component according to the temperature of the cold water, the temperature of the hot water and the ambient temperature.
14. The method as claimed in claim 13, wherein outputting a control signal to the electrically controlled water mixing component to make the temperature of the mixed water reach a set water temperature according to the temperature of the cold water, the temperature of the hot water and the ambient temperature comprises:
performing temperature compensation on the set water temperature according to the environment temperature to generate a second set water temperature;
determining a cold-hot water flow ratio required for enabling the mixed water temperature to reach the second set water temperature according to the cold water temperature and the hot water temperature;
and outputting a valve opening control signal to the electric control water mixing component according to the cold-hot water flow ratio.
15. The control method according to claim 14, wherein the temperature compensating the set water temperature according to the ambient temperature to generate a second set water temperature includes:
matching temperature compensation logic corresponding to the ambient temperature from a corresponding relation table between a preset ambient temperature interval and the temperature compensation logic;
and generating a second set water temperature according to the temperature compensation logic and the set water temperature.
16. The control method according to claim 15, wherein the ith temperature compensation logic in the correspondence table is represented by T i incrl ＝T in +ΔT i Wherein, T i incrl A second set water temperature, T, corresponding to the ith ambient temperature interval in To set the temperature, Δ T i And the compensation temperature corresponding to the ith environment temperature interval.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111186125.4A CN115978806A (en) | 2021-10-12 | 2021-10-12 | Control system and control method of water outlet device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111186125.4A CN115978806A (en) | 2021-10-12 | 2021-10-12 | Control system and control method of water outlet device |
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| CN115978806A true CN115978806A (en) | 2023-04-18 |
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