CN110779219B - Water heater and water temperature control method thereof - Google Patents
Water heater and water temperature control method thereof Download PDFInfo
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- CN110779219B CN110779219B CN201911069959.XA CN201911069959A CN110779219B CN 110779219 B CN110779219 B CN 110779219B CN 201911069959 A CN201911069959 A CN 201911069959A CN 110779219 B CN110779219 B CN 110779219B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
- F24H9/0042—Cleaning arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/14—Arrangements for connecting different sections, e.g. in water heaters
Abstract
The invention discloses a water heater and a water temperature control method thereof. The water heater comprises a water inlet pipe, a water outlet pipe, a water valve assembly, an electric controller assembly, a heat exchanger and a water temperature adjusting device; the water valve component is arranged on the water inlet pipe, and the water inlet of the water inlet pipe, the water valve component and the water outlet of the water inlet pipe are communicated with the water outlet pipe through the water temperature adjusting device. The water valve component is used for detecting water flow change, generating a water flow signal and transmitting the water flow signal to the electric controller assembly. The electric controller assembly is used for controlling the water temperature adjusting device to adjust the water temperature after receiving the water flow signal. The water temperature control method comprises the following steps: detecting the water flow change through the water valve assembly to generate a water flow signal, and transmitting the water flow signal to the electric controller assembly; the electric controller assembly controls the water temperature adjusting device to adjust the water temperature. The water temperature is adjusted before heat exchange, the defect that the water temperature is suddenly cooled and suddenly heated due to water flow fluctuation can be overcome, and the use experience of a user is improved.
Description
Technical Field
The invention relates to the field of water heaters, in particular to a water heater and a water temperature control method thereof.
Background
In order to make the water flowing out of the water outlet pipe of the water heater meet the use requirements of users, a bypass adjusting device is required to be used in the water heater to adjust the problem of water temperature fluctuation caused by water flow fluctuation.
However, the conventional bypass temperature control technique has a problem that the control of the water temperature is delayed because the feed-forward signal (water flow rate signal) is not supported. In the prior art, because the temperature is adjusted after the heat exchange, the temperature adjustment has certain lag, so that the water temperature generally becomes cold and hot along with the water flow, and the user experience is easily influenced.
Disclosure of Invention
The invention aims to overcome the defect that the water outlet temperature is suddenly high and low when the external water flow changes suddenly in a water heater in the prior art, and provides a water heater and a water temperature control method thereof.
The invention solves the technical problems through the following technical scheme:
a water heater comprises a water inlet pipe and a water outlet pipe, and is characterized by also comprising a water valve assembly, an electric controller assembly, a heat exchanger and a water temperature adjusting device; the water inlet valve assembly is arranged on the water inlet pipe, the water inlet of the water inlet pipe, the water valve assembly and the water outlet of the water inlet pipe are communicated with the water outlet pipe through the water temperature adjusting device along the flowing direction of water, and the water inlet of the water inlet pipe, the water valve assembly and the water outlet of the water inlet pipe are communicated with the water outlet pipe through the heat exchanger;
wherein the water valve assembly is used for detecting water flow change, generating a water flow signal and transmitting the water flow signal to the electric controller assembly;
and the electric controller assembly is used for receiving the water flow signal and controlling the water temperature adjusting device to adjust the water temperature after receiving the water flow signal.
In this scheme, the data that the water valve subassembly obtained play a role to temperature adjusting device and to the heat exchanger inoperative for temperature adjusting device is earlier than the heat exchanger work, adjust the temperature before carrying out the heat transfer through the heat exchanger, compare in prior art, the regulation of temperature has the support of discharge signal, can avoid the lag problem of temperature regulation, thereby can overcome because the fluctuation of discharge leads to the temperature of the water that flows from the outlet pipe suddenly high and suddenly low defect, be favorable to improving user's use and experience.
Preferably, the water valve assembly comprises a magnetic turbine rotor, a hall element and a water inlet temperature sensor, wherein the water inlet temperature sensor is used for detecting the temperature of inlet water, and the hall element is used for judging the water flow according to the number of turns of the rotation of the magnetic turbine rotor;
and a water outlet temperature sensor is arranged on a pipeline between the water temperature adjusting device and the water outlet pipe.
In this scheme, water temperature sensor and water valve subassembly cooperation are used, and the water valve subassembly is detecting water flow and changes the back, according to water temperature sensor and the temperature difference of intaking water temperature sensor, can calculate load difference (the product of temperature difference and water flow variation) comparatively accurately, is favorable to improving the temperature regulation effect in the water heater.
Preferably, a main passage and a branch passage are formed between the water valve assembly and the water outlet pipe, water in the main passage flows through the water valve assembly, the heat exchanger and the water outlet pipe in sequence, and water in the branch passage flows through the water valve assembly, the water temperature adjusting device and the water outlet pipe in sequence.
In this scheme, in the branch passageway, the data that the water valve subassembly obtained play a role to temperature adjusting device for temperature adjusting device plays a role in advance in the heat exchanger, and the water in the branch passageway can let in partial cold water in the outlet pipe earlier, makes the temperature some less, treats that hot water arrives at the back, just enables the temperature and resumes, and then can prevent that the temperature is too high.
Preferably, the water temperature adjusting means includes:
the water pipe assembly is provided with a frame body, a first water pipe and a second water pipe, wherein the first water pipe and the second water pipe are connected to two ends of the frame body, an accommodating space is formed in the frame body, openings are formed in one sides of the first water pipe and the second water pipe, which face the accommodating space, respectively, and the first water pipe and the second water pipe are communicated with the accommodating space through the openings;
the adjusting component is provided with an adjusting element and a first power source, the adjusting element is positioned in the accommodating space, a flow channel is defined between the adjusting element and the first water pipe and between the adjusting element and the second water pipe, and the first power source acts on the adjusting element to enable the adjusting element to rotate relative to the frame body so as to change the sectional area of the flow channel;
wherein the electric controller assembly acts on the first power source.
In this scheme, first power supply drive adjusting element rotates, can change flow channel's sectional area through adjusting element's rotation to when one in first water pipe and the second water pipe is the hot-water line, when another is the cold water pipe, through changing flow channel sectional area, can change the proportion of cold water and hot water in the hot-water line, thereby can enough realize that the temperature is by high regulation to low, also can realize the regulation that the temperature is by low regulation to high, that is to say, this temperature adjusting device can realize the two-way regulation of temperature, can improve the temperature regulating effect of water heater.
Preferably, the adjusting assembly further includes a first rotating shaft, the first rotating shaft is disposed through the frame body, the adjusting element is disposed on a side wall of the first rotating shaft, and the first power source is connected to the first rotating shaft and is configured to drive the first rotating shaft to rotate.
In this scheme, adopt above-mentioned structure setting for adjusting element's structure and drive mode are all comparatively simple, are favorable to reducing the space that adjusting part occupy in the accommodation space.
Preferably, the water temperature adjusting device further includes a first filter element, a second filter element, a first filter element support and a second filter element support, the first filter element is disposed in the first water pipe and at a position corresponding to the opening, the first filter element support is located in the accommodating space and connected to the first filter element, the second filter element is disposed in the second water pipe and at a position corresponding to the opening, the second filter element support is located in the accommodating space and connected to the second filter element, and the flow passage is enclosed between the adjusting element and the first filter element, the second filter element, the first filter element support and the second filter element support.
Preferably, the water temperature adjusting device further comprises a water stop plug, the opening has a first end and a second end along the flowing direction of water, the water stop plug is arranged at positions corresponding to the first end and the second end of the first water pipe and the second water pipe in the accommodating space, and the water stop plug can slide relative to the opening to open or close the opening.
In this scheme, when two water stop plugs that lie in same one end move in opposite directions in first water pipe and the second water pipe, the opening is opened to the water stop plug, and first water pipe, second water pipe, first filter core and the equal normal work of second filter core, the water route of first water pipe and second water pipe is opened. When the two water stop plugs positioned at the same end in the first water pipe and the second water pipe move backwards, the water stop plugs close the opening, the water paths of the first water pipe and the second water pipe are closed, and the first filter element and the second filter element can be taken out for cleaning.
Preferably, the acquisition of the water flow signal is long-period acquisition or short-period acquisition;
in the long-period acquisition, the time interval between two adjacent signal acquisitions is greater than 2 s;
in the short-period acquisition, the time interval between two adjacent signal acquisitions is less than 100 ms.
In this scheme, adopt long period collection, can be according to the condition of rivers, can effectively gather the discharge variation, be favorable to improving collection efficiency. Adopt short period to gather, can gather water flow variation comparatively comprehensively, reliably, do benefit to the realization to the continuous control of temperature, and then be favorable to improving the temperature control effect.
The invention also provides a water temperature control method of the water heater, which is characterized in that the water heater is the water heater, and the water temperature control method comprises the following steps:
s10, detecting water flow change through the water valve assembly, generating a water flow signal, and transmitting the water flow signal to the electric controller assembly;
and S20, after receiving the water flow signal, the electric controller assembly controls the water temperature adjusting device to adjust the water temperature.
In this scheme, adopt above-mentioned temperature control method, adjust the temperature before carrying out the heat transfer through the heat exchanger, compare in prior art, the regulation of temperature has had the support of discharge signal, can avoid the lag problem of temperature regulation to can overcome the temperature that leads to from the outlet pipe water that flows that water flow fluctuation suddenly high suddenly low defect, be favorable to improving user's use and experience.
Preferably, the step S20 further includes:
s201, judging the temperature difference of inlet and outlet water temperatures;
s202, determining the adjusting amplitude.
In the scheme, according to the adjusting amplitude, the sectional area of a water flow channel in the water temperature adjusting device is changed, so that the proportion of cold water and hot water in the water temperature adjusting device is changed.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The positive progress effects of the invention are as follows:
in this water heater, adjust the temperature before carrying out the heat transfer through the heat exchanger, compare in prior art, the regulation of temperature has had the support of discharge signal, can avoid the lag problem of temperature regulation to can overcome the temperature that leads to from the outlet pipe outflow water that water flow is undulant the defect that the temperature is suddenly high suddenly low, be favorable to improving user's use and experience. Correspondingly, the water temperature control method can overcome the defect that the temperature of the water flowing out of the water outlet pipe is suddenly high and suddenly low due to water flow fluctuation, and is also favorable for improving the use experience of a user.
Drawings
Fig. 1 is a schematic structural diagram of a water heater according to a preferred embodiment of the invention.
FIG. 2 is a flow chart of a water temperature control method for a water heater according to a preferred embodiment of the invention.
Fig. 3 is a schematic perspective view illustrating a water temperature adjusting device according to a preferred embodiment of the invention.
Fig. 4 is a schematic diagram of an internal structure of a water temperature adjusting device in a water heater according to a preferred embodiment of the invention.
Fig. 5 is a schematic partial structural view of a water temperature adjusting device in a water heater according to a preferred embodiment of the invention.
FIG. 6 is a schematic view of a water pipe of a water temperature adjusting device in a water heater according to a preferred embodiment of the invention.
FIG. 7 is another schematic diagram of a portion of a water temperature regulating device in a water heater according to a preferred embodiment of the present invention, showing a water stop plug, a second rotating shaft and a regulating assembly.
FIG. 8 is a schematic view of a water stop plug of a water temperature regulating device in a water heater according to a preferred embodiment of the present invention.
Fig. 9 is a schematic structural view of a first cartridge holder in a water temperature adjusting device of a water heater according to a preferred embodiment of the invention.
FIG. 10 is a schematic diagram of the structure of the water valve assembly in the water heater according to a preferred embodiment of the present invention.
Description of reference numerals:
1 Water temperature regulating device
10 water pipe assembly
101 frame body
102 first water pipe
103 second water pipe
104 space for accommodating
105 guide block
20 adjustment assembly
201 regulating element
202 first power source
203 first rotation axis
30 first filter element
40 first Filter element holder
50 second filter element
60 second Filter element holder
70 projection
80 water stop plug
801 water stop part
802 connection
803 guide groove
804 accommodating groove
90 knob
100 second rotation axis
110 cam
120 spring
2 water inlet pipe
3 water outlet pipe
4 water valve assembly
401 magnetic turbine rotor
402 Hall element
403 inflow water temperature sensor
5 electric controller assembly
6 heat exchanger
Detailed Description
The present invention is further illustrated by way of example and not by way of limitation in the scope of the following examples in connection with the accompanying drawings.
In the present embodiment, as shown in fig. 1, the water heater includes a water inlet pipe 2, a water outlet pipe 3, a water valve assembly 4, an electric controller assembly 5, a heat exchanger 6, and a water temperature adjusting device 1. Wherein, the water valve assembly 4 is arranged on the water inlet pipe 2, along the flowing direction of water, the water inlet of the water inlet pipe 2, the water valve assembly 4 and the water outlet of the water inlet pipe 2 are communicated with the water outlet pipe 3 through the water temperature adjusting device 1, and the water inlet of the water inlet pipe 2, the water valve assembly 4 and the water outlet of the water inlet pipe 2 are communicated with the water outlet pipe 3 through the heat exchanger 6. The water valve assembly 4 is used for detecting water flow changes, generating water flow signals and transmitting the water flow signals to the electric controller assembly 5. The electric controller assembly 5 is used for receiving the water flow signal and controlling the water temperature adjusting device 1 to adjust the water temperature after receiving the water flow signal.
In this embodiment, adopt temperature adjusting device 1 to adjust the temperature before carrying out the heat transfer through heat exchanger 6, compare in prior art, the regulation of temperature has had the support of discharge signal, can avoid the lag problem of temperature regulation to can overcome the defect that the temperature of the water that flows out from the outlet pipe that leads to because discharge fluctuation suddenly changes, be favorable to improving user's use and experience.
As shown in fig. 10, the water valve assembly 4 includes a magnetic turbine rotor 401, a hall element 403 and a water inlet temperature sensor 403, the water inlet temperature sensor 403 is used for detecting the temperature of the inlet water, and the hall element 402 is used for determining the water flow according to the number of turns of the magnetic turbine rotor 401. A water outlet temperature sensor is arranged on a pipeline between the water temperature adjusting device 1 and the water outlet pipe 3.
It should be noted that, in the present embodiment, the outlet temperature sensor and the water valve assembly 4 are used in cooperation, and after the water valve assembly 4 detects a water flow change, the load difference (the product of the temperature difference and the water flow change amount) can be calculated more accurately according to the temperature difference between the outlet temperature sensor and the inlet temperature sensor 403, which is beneficial to improving the water temperature regulation effect in the water heater.
A main passage and a branch passage are formed between the water valve component 4 and the water outlet pipe 3, water in the main passage flows through the water valve component 4, the heat exchanger 6 and the water outlet pipe 3 in sequence, and water in the branch passage flows through the water valve component 4, the water temperature adjusting device 1 and the water outlet pipe 3 in sequence. Wherein, in the branch passageway, the data that water valve subassembly 4 obtained play a role to water temperature adjusting device 1 for water temperature adjusting device 1 plays a role in advance in heat exchanger 6, and the water in the branch passageway can let in some cold water in the outlet pipe earlier, makes the temperature some less, treats that hot water arrives at the back, just enables the temperature and resumes, and then can prevent that the temperature is too high.
As shown in fig. 3 to 9, the water temperature adjusting device 1 in the water heater includes a water pipe assembly 10 and an adjusting assembly 20. The water pipe assembly 10 has a frame body 101, and a first water pipe 102 and a second water pipe 103 connected to two ends of the frame body 101, the frame body 101 has an accommodating space 104 inside, openings are provided on one sides of the first water pipe 102 and the second water pipe 103 facing the accommodating space 104, and the first water pipe 102 and the second water pipe 103 are communicated with the accommodating space 104 through the openings. The adjusting assembly 20 has an adjusting element 201 and a first power source 202, the adjusting element 201 is located in the accommodating space 104, a flow passage is defined between the adjusting element 201 and the first water pipe 102 and the second water pipe 103, and the first power source 202 acts on the adjusting element 201 to rotate the adjusting element 201 relative to the frame body 101 to change the cross-sectional area of the flow passage. Wherein, the electric controller assembly 5 acts on the first power source.
In the present embodiment, the first power source 202 drives the adjusting element 201 to rotate, and the cross-sectional area of the flow channel can be changed by the rotation of the adjusting element 201, so that when one of the first water pipe 102 and the second water pipe 103 is a hot water pipe and the other is a cold water pipe, the ratio of cold water and hot water in the hot water pipe can be changed by changing the cross-sectional area of the flow channel, and thus the water temperature can be adjusted from high to low and from low to high, that is, the water temperature adjusting device 1 can achieve bidirectional adjustment of the water temperature. When the water temperature adjusting device 1 is applied to a water heater, the water temperature adjusting effect of the water heater can be improved.
As will be understood by referring to fig. 4, 5 and 7, the adjusting assembly 20 further includes a first rotating shaft 203, the first rotating shaft 203 is disposed through the frame body 101, the adjusting element 201 is disposed on a side wall of the first rotating shaft 203, and the first power source 202 is connected to the first rotating shaft 203 and is used for driving the first rotating shaft 203 to rotate.
By adopting the above structure, the structure and the driving manner of the adjusting element 201 are both simple, which is beneficial to reducing the space occupied by the adjusting component 20 in the accommodating space 104.
In this embodiment, the first power source 202 is a motor, but in other alternative embodiments, the first power source 202 may have another structure capable of rotating the first rotation shaft 203.
As shown in fig. 4 and 7, the number of the adjustment members 201 is two, and the two adjustment members 201 are provided at intervals in the circumferential direction of the first rotation shaft 203. In other alternative embodiments, the number of the adjusting elements 201 may be other according to actual needs.
Wherein, the arrangement of the plurality of adjusting elements 201 facilitates increasing the adjusting gradient of the water temperature, which is beneficial to further improving the adjusting effect of the water temperature.
As will be understood by referring to fig. 3 to 5, the water temperature adjusting device 1 further includes a first filter element 30, a second filter element 50, a first filter element support 40 and a second filter element support 60, the first filter element 30 is disposed in the first water pipe 102 at a position corresponding to the opening, the first filter element support 40 is disposed in the accommodating space 104 and connected to the first filter element 30, the second filter element 50 is disposed in the second water pipe 103 at a position corresponding to the opening, the second filter element support 60 is disposed in the accommodating space 104 and connected to the second filter element 50, and a flow passage is defined between the adjusting element 201 and the first filter element 30, the second filter element 50, the first filter element support 40 and the second filter element support 60.
As will be understood by referring to fig. 4, 5 and 8, the water temperature adjusting device 1 further includes a water stop plug 80, the opening has a first end and a second end in the water flowing direction (the water flowing direction refers to the direction in which water flows in the first water pipe 102 and the second water pipe 103, and in this embodiment, the water flowing directions in the first water pipe 102 and the second water pipe 103 are opposite, so that the first end of the opening of the first water pipe 102 is located at the same end as the second end of the opening of the second water pipe 103, and the second end of the opening of the first water pipe 102 is located at the same end as the first end of the opening of the second water pipe 103), and the water stop plug 80 is provided in the accommodating space 104 at a position corresponding to the first end and the second end of the first water pipe 102 and the second water pipe 103, and the water stop plug 80 is slidable relative to the opening to open or close the opening. When the two water stop plugs 80 at the same end of the first water pipe 102 and the second water pipe 103 move in opposite directions, the water stop plugs 80 open the openings, the first water pipe 102, the second water pipe 103, the first filter element 30 and the second filter element 50 all work normally, and the water paths of the first water pipe 102 and the second water pipe 103 are opened. When the two water stop plugs 80 at the same end of the first water pipe 102 and the second water pipe 103 move back to back, the water stop plugs 80 close the openings, the water paths of the first water pipe 102 and the second water pipe 103 are closed, and at the moment, the first filter element 30 and the second filter element 50 can be taken out for cleaning.
As will be understood by further referring to fig. 4, 5, and 8, the water stop plug 80 has a water stop portion 801 and a connecting portion 802 connected to each other, the water stop portion 801 is used to open or close the opening, a guide groove 803 is provided on the connecting portion 802, the extending direction of the guide groove 803 is along the sliding direction of the water stop plug 80, a guide block 105 is provided in the frame body 101 at a position corresponding to the guide groove 803, and the guide block 105 is used to be engaged with the guide groove 803.
The guide groove 803 and the guide block 105 are matched to realize the guide effect on the water stop plug 80, so that the working reliability of the water stop plug 80 is improved, and the reliability of water temperature adjustment is improved.
In addition, as shown in fig. 5 and 8, the water stop portion 801 is provided with a receiving groove 804, and a sealing ring is embedded in the receiving groove 804. Wherein, when needs are with the confined of water route, through the effect of sealing washer, can improve the sealed reliability in water route, prevent the hourglass water, be convenient for take out first filter core 30 and second filter core 50.
As will be understood with reference to fig. 3-5 and 9, a projection 70 is provided on each of a side of first cartridge holder 40 facing first cartridge 30 and a side of second cartridge holder 60 facing second cartridge 50, and first cartridge holder 40 and second cartridge holder 60 are engaged with first cartridge 30 and second cartridge 50, respectively, via projection 70. The protruding part 70 can limit the filter element, which is convenient for installation between the filter element and the filter element support and improvement of installation reliability between the filter element and the filter element support.
It should be noted that the first cartridge 30 and the second cartridge 50 have the same structure, and accordingly, the first cartridge holder 40 and the second cartridge holder 60 have the same structure.
As shown in fig. 4 and 5, a spring 120 is connected between the two water stop plugs 80 at the same end of the first water pipe 102 and the second water pipe 103. When the waterway needs to be opened, the elastic force provided by the spring 120 can make the two water stop plugs 80 at the same end move towards each other, thereby facilitating the reliable opening of the waterway.
Specifically, in the present embodiment, two springs 120 are connected between the two water stop plugs 80 located at the same end of the first water pipe 102 and the second water pipe 103, and the two springs 120 are symmetrically arranged with respect to the water stop plugs 80.
Wherein, be connected with the spring 120 of symmetry setting on the side of stagnant water stopper 80 for the effort of spring 120 to stagnant water stopper 80 is more balanced, prevents that stagnant water stopper 80 from being blocked at gliding in-process, thereby is favorable to further improving the reliability of temperature adjusting device 1.
As shown in fig. 4, 5 and 7, the water temperature adjusting device 1 further includes a cam 110, a second rotating shaft 100 and a second power source, the cam 110 is sleeved on the second rotating shaft 100, the cam 110 is disposed between the two water stop plugs 80 at the same end of the first water pipe 102 and the second water pipe 103, and the second power source is connected to the second rotating shaft 100 and rotates the second rotating shaft 100, so that the cam 110 drives the water stop plugs 80 to slide. When the second power source is started, the second rotating shaft 100 rotates to drive the cam 110 to rotate, and the rotation of the cam 110 pushes the water stop plug 80 to move towards the direction close to the corresponding opening, so that the water stop plug 80 realizes the closing of the water path.
As will be understood by further referring to fig. 4 and 7, the second rotating shaft 100 is a hollow shaft, the first rotating shaft 203 is disposed through the second rotating shaft 100, the wall surface of the second rotating shaft 100 is provided with an avoiding groove, the adjusting element 201 is disposed through the avoiding groove, and the axis of the first rotating shaft 203 is parallel to the axis of the second rotating shaft 100. Wherein, so set up for stagnant water stopper 80, second rotation axis 100, second power supply and adjusting part 20 combine, can reduce the space that occupies in accommodation space 104, are favorable to reducing the whole space that occupies of temperature adjusting device 1. In addition, the occupied space in the accommodating space 104 is less, so that the influence on the flow channel is reduced, and the adoption of the structure arrangement is also beneficial to improving the reliability of water temperature regulation.
It should be noted that, in the present embodiment, the second power source is implemented by applying an external force (e.g. a force manually applied by an operator) to make the knob 90 connected to the second rotating shaft 100, and in other alternative embodiments, the second power source may be implemented by electric driving.
It should be noted that, as shown in fig. 4 and 5, the adjusting element 201 is located between the two cams 110, and this is set so as to prevent the rotation of the cams 110 from affecting the normal operation of the adjusting element 201, which is beneficial to further improving the reliability of the operation of the water temperature adjusting device 1.
In addition, in the present embodiment, both the first power source 202 and the second power source are located outside the accommodating space 104. The first power source 202 and the second power source are disposed outside the accommodating space 104, which is beneficial to further reducing the space occupied in the accommodating space 104, not only reducing the space occupied by the whole water temperature adjusting device 1, but also improving the reliability of water temperature adjustment.
Regarding the acquisition of the water flow signal, the long-period acquisition is adopted in the present embodiment, wherein the long-period acquisition refers to that the time interval between two adjacent signal acquisitions is greater than 2 s. The long-period collection is adopted, the water flow change can be effectively collected according to the water flow condition, and the collection efficiency is favorably improved
In other alternative embodiments, a short period acquisition may be used, wherein a short period acquisition refers to a time interval between two adjacent signal acquisitions of less than 100 ms. Adopt short period to gather, can gather water flow variation comparatively comprehensively, reliably, do benefit to the realization to the continuous control of temperature, and then be favorable to improving the temperature control effect.
Of course, in other alternative embodiments, the time interval between two adjacent signal acquisitions may be greater than 100ms and less than 2s, according to actual needs.
In this embodiment, a water temperature control method of the water heater is further disclosed, as shown in fig. 2, the water temperature control method includes:
step S10, detecting water flow change through the water valve component, generating a water flow signal, and transmitting the water flow signal to the electric controller assembly;
and step S20, after receiving the water flow signal, the electric controller assembly controls the water temperature adjusting device to adjust the water temperature.
Specifically, in this embodiment, the step 20 further includes the steps of:
step S201, judging temperature difference of inlet and outlet water temperatures;
step S202, determining the adjusting amplitude.
Wherein, according to the regulating amplitude, the sectional area of a water flow channel in the water temperature regulating device is changed, so that the proportion of cold water and hot water in the water temperature regulating device is changed.
For example, when the water flow valve assembly 4 detects that the increase of the water flow is less than 2L, if the temperature difference between the inlet and outlet water temperatures is determined to be less than 15 °, the required adjustment range is small, for example, the opening is reduced by 15 °; if the temperature difference of the inlet water temperature and the outlet water temperature is judged to be larger than 15 degrees, the required adjusting amplitude is moderate, for example, the opening is reduced by 30 degrees. When the water flow valve assembly 4 detects that the increase of water flow is more than 2L, if the temperature difference of the inlet water temperature and the outlet water temperature is judged to be less than 15 degrees, the required adjusting amplitude is moderate, for example, the opening is reduced by 30 degrees; if the temperature difference of the inlet and outlet water temperature is judged to be more than 15 degrees, the required adjustment range is large, for example, the opening is reduced by 60 degrees
The water temperature control method can overcome the defect that the temperature of water flowing out of the water outlet pipe is suddenly high and suddenly low due to water flow fluctuation, and is favorable for improving the use experience of users.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, should not be construed as limiting the present invention unless otherwise specified herein.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (9)
1. A water heater comprises a water inlet pipe and a water outlet pipe, and is characterized by also comprising a water valve assembly, an electric controller assembly, a heat exchanger and a water temperature adjusting device; the water inlet valve assembly is arranged on the water inlet pipe, the water inlet of the water inlet pipe, the water valve assembly and the water outlet of the water inlet pipe are communicated with the water outlet pipe through the water temperature adjusting device along the flowing direction of water, and the water inlet of the water inlet pipe, the water valve assembly and the water outlet of the water inlet pipe are communicated with the water outlet pipe through the heat exchanger;
wherein the water valve assembly is used for detecting water flow change, generating a water flow signal and transmitting the water flow signal to the electric controller assembly;
the electric controller assembly is used for receiving the water flow signal and controlling the water temperature adjusting device to adjust the water temperature after receiving the water flow signal;
the water temperature adjusting device comprises a water pipe assembly, the water pipe assembly is provided with a frame body, a first water pipe and a second water pipe, the first water pipe and the second water pipe are connected to two ends of the frame body, an accommodating space is formed in the frame body, openings are formed in one sides of the first water pipe and the second water pipe, the sides of the first water pipe and the second water pipe face the accommodating space, and the first water pipe and the second water pipe are communicated with the accommodating space through the openings;
the water temperature adjusting device also comprises a first filter element and a second filter element, the first filter element is arranged in the first water pipe at a position corresponding to the opening, and the second filter element is arranged in the second water pipe at a position corresponding to the opening;
the water temperature adjusting device further comprises a water stop plug, the opening is provided with a first end and a second end along the flowing direction of water, the positions, corresponding to the first end and the second end of the first water pipe and the second water pipe, of the accommodating space are provided with the water stop plug, and the water stop plug can slide relative to the opening to open or close the opening.
2. The water heater of claim 1, wherein the water valve assembly includes a magnetic turbine rotor, a hall element and a water inlet temperature sensor, the water inlet temperature sensor is used for detecting the temperature of inlet water, and the hall element is used for judging the water flow according to the number of turns of the magnetic turbine rotor;
and a water outlet temperature sensor is arranged on a pipeline between the water temperature adjusting device and the water outlet pipe.
3. The water heater as recited in claim 2 wherein a main passageway and a branch passageway are formed between said water valve assembly and said outlet tube, water in said main passageway passing through said water valve assembly, said heat exchanger and said outlet tube in sequence, and water in said branch passageway passing through said water valve assembly, said water temperature regulating device and said outlet tube in sequence.
4. The water heater as claimed in claim 1, wherein said water temperature adjusting means comprises:
the adjusting component is provided with an adjusting element and a first power source, the adjusting element is positioned in the accommodating space, a flow channel is defined between the adjusting element and the first water pipe and between the adjusting element and the second water pipe, and the first power source acts on the adjusting element to enable the adjusting element to rotate relative to the frame body so as to change the sectional area of the flow channel;
wherein the electric controller assembly acts on the first power source.
5. The water heater as claimed in claim 4, wherein the adjusting assembly further comprises a first rotating shaft, the first rotating shaft is disposed through the frame body, the adjusting element is disposed on a sidewall of the first rotating shaft, and the first power source is connected to the first rotating shaft and is used for driving the first rotating shaft to rotate.
6. The water heater according to claim 5, wherein said water temperature adjusting device further comprises a first cartridge holder and a second cartridge holder, said first cartridge holder being located in said receiving space and connected to said first cartridge, said second cartridge holder being located in said receiving space and connected to said second cartridge, said adjusting element enclosing said flow path with said first cartridge, said second cartridge, said first cartridge holder and said second cartridge holder.
7. The water heater according to any one of claims 1-6, wherein the water flow signal is collected in a long period or a short period;
in the long-period acquisition, the time interval between two adjacent signal acquisitions is greater than 2 s;
in the short-period acquisition, the time interval between two adjacent signal acquisitions is less than 100 ms.
8. A water temperature control method of a water heater, wherein the water heater is the water heater as claimed in any one of claims 1 to 7, the water temperature control method comprising:
s10, detecting water flow change through the water valve assembly, generating a water flow signal, and transmitting the water flow signal to the electric controller assembly;
and S20, after receiving the water flow signal, the electric controller assembly controls the water temperature adjusting device to adjust the water temperature.
9. The water temperature control method of a water heater as claimed in claim 8, wherein said step S20 further comprises:
s201, judging the temperature difference of inlet and outlet water temperatures;
s202, determining the adjusting amplitude.
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| CN110779219A (en) | 2020-02-11 |
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