CN108006949B - Electric water heater and constant temperature control device thereof - Google Patents
Electric water heater and constant temperature control device thereof Download PDFInfo
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- CN108006949B CN108006949B CN201711480266.0A CN201711480266A CN108006949B CN 108006949 B CN108006949 B CN 108006949B CN 201711480266 A CN201711480266 A CN 201711480266A CN 108006949 B CN108006949 B CN 108006949B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 431
- 230000000903 blocking effect Effects 0.000 claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims description 40
- 238000007789 sealing Methods 0.000 claims description 33
- 230000005540 biological transmission Effects 0.000 claims description 23
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 210000001503 joint Anatomy 0.000 abstract description 2
- 230000013011 mating Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000003287 bathing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
Classifications
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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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
- F24H1/185—Water-storage heaters using electric energy supply
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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
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
- F24H9/2021—Storage heaters
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Temperature-Responsive Valves (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention relates to a constant temperature control device of an electric water heater, which comprises a body, a water mixing assembly and a control valve assembly, wherein a cold water sleeve and a hot water sleeve are in butt joint to form a water mixing cavity; a hot water channel is arranged in the hot water sleeve, one end of the hot water channel is communicated with the hot water inlet, the other end of the hot water channel is communicated with the water mixing cavity, a cold water channel and a water mixing channel are arranged in the cold water sleeve, one end of the cold water channel is communicated with the cold water inlet, the other end of the cold water channel is communicated with the water mixing cavity, one end of the water mixing channel is communicated with the water mixing cavity, and the other end of the water mixing channel is communicated with the water mixing water outlet; the control valve assembly comprises a fixed seat and a valve core; one end of the valve core extends into the water mixing cavity and is provided with a first blocking part and a second blocking part, and the valve core is axially movable along the body and is used for adjusting the hot water flow flowing into the water mixing cavity from the hot water flow channel and the cold water flow flowing into the water mixing cavity from the cold water flow channel. Therefore, through the movement of the valve core, the hot water flow and the cold water flow entering the water mixing cavity can be accurately regulated, so that the quick and stable constant-temperature water outlet is realized, and the use is convenient. An electric water heater is also provided.
Description
Technical Field
The invention relates to the technical field of electricity, in particular to an electric water heater and a constant temperature control device thereof.
Background
At present, the common water storage type electric water heater carries out temperature regulation through an external mechanical water mixing valve, and the water outlet temperature can reach the required temperature only by continuous debugging in the use process of the mechanical water mixing valve, so that the operation is very inconvenient, the regulation precision is low, the water outlet temperature is high and low, the constant temperature effect cannot be achieved, and the bathing experience is influenced.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide an electric water heater and a constant temperature control device thereof, which can effectively improve the operation convenience and the adjustment precision.
The second technical problem to be solved by the invention is to provide an electric water heater which can ensure that the electric water heater can always output hot water, thereby playing a role of capacity enhancement and improving user experience.
The first technical problem is solved by the following technical scheme:
a thermostatic control device for an electric water heater, comprising:
The body is hollow and provided with a cold water inlet, a hot water inlet and a mixed water outlet;
The water mixing assembly comprises a cold water sleeve and a hot water sleeve which are circumferentially and hermetically arranged in the inner cavity of the body, and one ends of the cold water sleeve and the hot water sleeve which are opposite to each other are butted to form a water mixing cavity; the hot water sleeve is internally provided with a hot water flow passage, one end of the hot water flow passage is communicated with the hot water inlet, the other end of the hot water flow passage is communicated with the water mixing cavity, the cold water sleeve is internally provided with a cold water flow passage and a water mixing flow passage which are mutually spaced, one end of the cold water flow passage is communicated with the cold water inlet, the other end of the cold water flow passage is communicated with the water mixing cavity, one end of the water mixing flow passage is communicated with the water mixing cavity, and the other end of the water mixing flow passage is communicated with the water mixing water outlet;
the control valve assembly comprises a fixed seat and a valve core, wherein the fixed seat is arranged at one end of the body in a sealing way, and the valve core is arranged on the fixed seat in a penetrating way in the circumferential direction in a sealing way and in an axial movable way; one end of the valve core penetrates through the hot water flow channel and stretches into the water mixing cavity, a first blocking part and a second blocking part are arranged at intervals, the valve core is axially movable along the body, and the gap between the first blocking part and the opening end of the hot water flow channel and the gap between the second blocking part and the opening end of the cold water flow channel are adjusted, so that the hot water flow flowing into the water mixing cavity of the hot water flow channel is adjusted, and the cold water flow flowing into the water mixing cavity of the cold water flow channel is adjusted.
Compared with the background technology, the constant temperature control device of the electric water heater has the following technical effects: through the movement of the valve core, the flow of hot water and the flow of cold water entering the water mixing cavity can be accurately regulated, so that the quick and stable constant-temperature water outlet is realized, and the use is convenient.
In one embodiment, the constant temperature control device of the electric water heater further comprises a driving element, the valve core is in threaded connection with the fixing seat, and the driving element is installed on the fixing seat and is in transmission connection with one end, far away from the water mixing cavity, of the valve core so as to drive the valve core to rotate along a preset direction, and therefore the valve core is driven to move along the axial direction of the body.
In one embodiment, the constant temperature control device of the electric water heater further comprises a rotary transmission member, the rotary transmission member is rotatably connected in the fixing seat, the output end of the driving element is matched and connected with one end of the rotary transmission member, and one end of the valve core, which is far away from the water mixing cavity, is matched and connected with the other end of the rotary transmission member.
In one embodiment, the water mixing assembly further comprises a guide portion arranged in the cold water sleeve, one end of the guide portion extends into the water mixing cavity along the cold water flow channel, one end of the valve core extending into the water mixing cavity is provided with a guide hole matched with the guide portion, and the guide portion is in sliding fit with the guide hole so as to guide the valve core along the axial movement of the body.
In one embodiment, the water mixing assembly further comprises a first sealing ring arranged on the outer wall of the hot water sleeve and a second sealing ring arranged on the outer wall of the cold water sleeve;
The first sealing ring and the second sealing ring are axially positioned between the hot water inlet and the cold water inlet along the body.
In one embodiment, the cold water inlet and the hot water inlet are arranged on the circumferential surface of the body;
The water mixing outlet is arranged at one end of the body, which is far away from the fixing seat.
In one embodiment, the water mixing assembly further comprises a sealing piece, the inner cavity of the body is provided with an annular limiting part, and one end, away from the hot water sleeve, of the cold water sleeve is abutted and limited on the limiting part;
the sealing element is arranged between the cold water sleeve and the limiting part.
In one embodiment, the constant temperature control device further comprises a first temperature sensor, wherein the first temperature sensor is connected with a controller of the electric water heater and is positioned at the water mixing outlet.
The second technical problem is solved by the following technical scheme:
the electric water heater comprises an inner container, a heating assembly, a controller and a constant temperature control device in any embodiment, and further comprises a second temperature sensor connected with the controller, wherein the heating tube group comprises a first heating tube and a second heating tube which are connected with the controller, the first heating tube is arranged at the bottom of the inner container, and the second heating tube is arranged at the top of the inner container;
The second temperature sensor is arranged in the inner container and is positioned at the inlet of the water outlet pipe.
Compared with the background technology, the electric water heater has the following technical effects: the controller is according to the temperature of second temperature sensor feedback, through alternately or simultaneously controlling first heating pipe and second heating pipe heating, ensures that the temperature of outlet pipe entrance is in certain temperature to ensure that electric water heater can have hot water output always, and then play "compatibilization" effect, improved user experience.
In one embodiment, the electric water heater further comprises a third temperature sensor connected with the controller, wherein the third temperature sensor is arranged in the inner container and is a preset distance away from the outlet of the water inlet pipe.
Drawings
Fig. 1 is a schematic structural diagram of an electric water heater according to an embodiment of the present invention;
FIG. 2 is an exploded schematic view of a thermostat control device of the electric water heater shown in FIG. 1;
FIG. 3 is a cross-sectional view of the thermostatic control device shown in FIG. 2;
FIG. 4 is a cross-sectional view of the thermostatic control device shown in FIG. 2 with the body removed;
FIG. 5 is a schematic view of the valve core of the thermostatic control device shown in FIG. 2;
FIG. 6 is a cross-sectional view of one end of the thermostatic control device shown in FIG. 2 where a cold water sleeve is docked with a hot water sleeve;
fig. 7 is a partially exploded view of the electric water heater shown in fig. 1.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 and 2, a thermostat control device 10 of an electric water heater according to an embodiment of the present invention includes a main body 12, a water mixing assembly 14 and a control valve assembly 16.
Referring also to fig. 3, the main body 12 is hollow and has a cold water inlet 122, a hot water inlet (not shown) and a mixed water outlet 126. Specifically, the body 12 has a tubular shape extending lengthwise, the cold water inlet 122 and the hot water inlet are disposed on the circumferential surface of the body 12, and the mixed water outlet 126 is disposed at one end of the body 12 for connection with the shower head.
More specifically, the thermostatic control device 10 further includes a water inlet joint 18 and a water outlet joint 19; the water inlet joint 18 comprises two water outlet ends, one water outlet end of the water inlet joint 18 is used for being connected with the water inlet pipe 32 of the electric water heater, and the other water outlet end of the water inlet joint 18 is communicated with the cold water inlet 122 through a pipeline. The water inlet end of the water outlet joint 19 is used for being connected with a water outlet pipe 34 of the electric water heater, and the water outlet end of the water outlet joint 19 is used for being connected with a hot water inlet.
Referring to fig. 3 and 4, the water mixing assembly 14 includes a cold water sleeve 142 and a hot water sleeve 144 sealingly disposed in the cavity of the body 12, and opposite ends of the cold water sleeve 142 and the hot water sleeve 144 are abutted to form a water mixing cavity 15. The hot water sleeve 144 is internally provided with a hot water flow passage 1442, one end of the hot water flow passage 1442 is communicated with the hot water inlet, and the other end is communicated with the water mixing cavity 15. The cold water sleeve 142 has a cold water channel 1422 and a mixing water channel 1424 spaced apart from each other, wherein one end of the cold water channel 1422 is communicated with the cold water inlet 122, the other end is communicated with the mixing cavity 15, one end of the mixing water channel 1424 is communicated with the mixing cavity 15, and the other end is communicated with the mixing water outlet 126.
Specifically, the cold water sleeve 142 and the hot water sleeve 144 are both circular, and are sealingly disposed in the inner cavity of the body 12, one end of the cold water sleeve 142 is abutted and limited in the inner cavity of the body 12, and one end of the hot water sleeve 144 is abutted to the other end of the cold water sleeve 142 to form the water mixing cavity 15. The hot water sleeve 144 is internally provided with a first opening for communicating the hot water flow passage 1442 with the water mixing cavity 15, the cold water sleeve 142 is provided with a second opening for communicating the cold water flow passage 1422 with the water mixing cavity 15, the cold water sleeve 142 is also provided with a third opening for communicating the cold water flow passage 1422 with the cold water inlet 122 of the body 12, and the hot water sleeve 144 is also provided with a fourth opening for communicating the hot water flow passage 1442 with the hot water inlet of the body 12.
Cold water flowing out of the corresponding outlet end of the water inlet joint 18 flows through the cold water inlet 122 and the third opening in turn into the cold water flow channel 1422, and finally into the water mixing chamber 15. The hot water flowing out from the water outlet end of the water outlet joint 19 flows into the hot water flow passage 1442 through the hot water inlet and the fourth opening, and finally is mixed with the cold water flowing into the water mixing chamber 15.
The control valve assembly 16 includes a fixed seat 162 sealingly disposed in the inner cavity of the body 12, and a valve core 164 circumferentially sealed and axially movably passing through the fixed seat 162. Specifically, referring to fig. 2 again, a connecting portion (not shown) is provided at one end of the fixing base 162, an external thread is provided at a connecting portion, an internal thread matching with the external thread is correspondingly provided on the inner cavity wall of the body 12, and the fixing base 162 is screwed to the inner cavity of the body 12 and abuts against one end of the hot water sleeve 144, so as to fix the hot water sleeve 144 and the cold water sleeve 142 to the inner cavity of the body 12. The part of the connecting part, which is not provided with external threads, is provided with a plurality of positioning ribs 165 extending in the axial direction at intervals along the circumferential direction, the inner cavity wall of the hot water sleeve 144 is correspondingly provided with positioning grooves 146, and the positioning ribs 165 are matched and connected in the positioning grooves 146. Thus, the reliability of connection is ensured, and the fixing seat 162 is convenient to install and position.
One end of the valve core 164 passes through the hot water flow passage 1442 and extends into the water mixing cavity 15, and a first blocking portion 166 and a second blocking portion 168 are arranged at intervals, and the valve core 164 is axially movable along the body 12 so as to adjust the gap between the first blocking portion 166 and the opening end of the hot water flow passage 1442 and the gap between the second blocking portion 168 and the opening end of the cold water flow passage 1422, thereby adjusting the flow rate of the hot water flowing into the water mixing cavity 15 from the hot water flow passage 1442 and the flow rate of the cold water flowing into the water mixing cavity 15 from the cold water flow passage 1422. Specifically, the profile of the first blocking portion 166 matches the shape of the first opening, and the profile of the second blocking portion 168 matches the shape of the second opening, so that the second blocking portion 168 can block the second opening when only hot water is needed, and the first blocking portion 166 can block the first opening when only cold water is needed.
In the embodiment, the first blocking portion 166 and the second blocking portion 168 are both in a frustum shape, and the first blocking portion 166 and the second blocking portion 168 have conical surfaces along the circumferential direction, and correspondingly, the first opening and the second opening have mating surfaces matched with the conical surfaces.
As shown in fig. 3, when the valve body 164 moves leftward, the clearance between the conical surface of the first blocking portion 166 and the mating surface of the first opening is reduced, and the flow rate of the hot water flowing from the first opening into the water mixing chamber 15 is reduced; correspondingly, the gap between the conical surface of the second blocking portion 168 and the mating surface of the second opening increases, and the flow rate of the cold water flowing from the second opening into the water mixing chamber 15 increases. When the valve body 164 moves rightward, the clearance between the conical surface of the second blocking portion 168 and the mating surface of the second opening increases, and the flow rate of the cold water flowing from the second opening into the water mixing chamber 15 decreases; correspondingly, the gap between the conical surface of the first blocking portion 166 and the mating surface of the first opening increases, and the flow rate of the cold water flowing from the first opening into the water mixing chamber 15 decreases.
Thus, through the movement of the valve core 164, the flow of hot water and the flow of cold water entering the water mixing cavity 15 can be accurately regulated, so that the quick and stable constant-temperature water outlet is realized, and the use is convenient. And the water outlet temperature range is wide, so that the full coverage from the tap water temperature to the hot water temperature of the liner is realized, the water use selection range of a user is improved, and the applicability and the use convenience are improved.
In an embodiment, the thermostatic control device 10 of the electric water heater further includes a driving element 11, the valve core 164 is screwed to the fixing seat 162, and the driving element 11 is installed on the fixing seat 162 of the valve core 164 and is in transmission connection with one end of the valve core 164 away from the water mixing cavity 15, so as to drive the valve core 164 to rotate along a preset direction, thereby promoting the valve core 164 to be axially movable along the body 12. Further, the thermostatic control device 10 of the electric water heater further comprises a rotary transmission member 13, the rotary transmission member 13 is rotatably connected in the fixed seat 162, the output end of the driving element 11 is matched and connected with one end of the rotary transmission member 13, and one end of the valve core 164 away from the water mixing cavity 15 is matched and connected with the other end of the rotary transmission member 13.
Specifically, the driving element 11 is a stepper motor, the rotation transmission member 13 is a rotation transmission sleeve, at least two connecting posts 167 are disposed at one end of the fixing base 162 away from the body 12, the connecting posts 167 are provided with threaded holes, and the driving element 11 is mounted on the fixing base 162 through the threaded holes of the connecting posts 167. The two ends of the rotation transmission sleeve are respectively provided with a transmission hole, the output shaft of the driving element 11 is matched and connected with the transmission hole at one end of the rotation transmission sleeve, and the valve core 164 is matched and connected with the transmission hole at the other end of the rotation transmission sleeve.
In particular embodiments, the cross-sectional shape of the drive aperture is polygonal, such as hexagonal.
In one embodiment, the mixing assembly 14 further includes a guide portion 148 disposed in the cold water jacket 142, and one end of the guide portion 148 extends along the cold water flow path 1422 out of the second opening and into the mixing chamber 15. One end of the valve core 164 extending into the mixing chamber 15 is provided with a guide hole matched with the guide part 148, and the guide part 148 is slidably matched with the guide hole so as to guide the valve core 164 along the axial movement of the body 12. Specifically, referring to fig. 6, the cold water channel 1422 has a circular cross-section, the cold water channel 1422 is formed between the guide portion 148 and the inner wall of the cold water jacket 142, and the mixed water channel 1424 is located at one side of the cold water channel 1422.
In particular, the water mixing chamber 15 is formed by butting the hot water sleeve 144 with the cold water sleeve 142, so as to ensure the tightness of the thermostatic control device 10, in an embodiment, the water mixing assembly 14 further includes a first sealing ring 141 disposed on the outer wall of the hot water sleeve 144 and a second sealing ring 143 disposed on the outer wall of the cold water sleeve 142; the first sealing ring 141 and the second sealing ring 143 are axially located along the body 12 between the hot water inlet and the cold water inlet 122.
Specifically, the outer wall of the hot water sleeve 144 and the outer wall of the cold water sleeve 142 are respectively provided with a receiving groove along the circumferential direction, the first sealing ring 141 is disposed in the receiving groove of the outer wall of the hot water sleeve 144, and the second sealing ring 143 is disposed in the receiving groove of the outer wall of the hot water sleeve 144. The first sealing ring 141 and the second sealing ring 143 have elasticity, the first sealing ring 141 is extruded between the hot water sleeve 144 and the inner cavity wall of the body 12, and the second sealing ring 143 is extruded between the cold water sleeve 142 and the inner cavity wall of the body 12, so that the sealing effect is achieved.
In this way, the mixed water in the water mixing cavity 15 is prevented from flowing out from the butt joint of the hot water sleeve 144 and the cold water sleeve 142, and leaking between the hot water sleeve 144 and the inner cavity of the body 12, and between the cold water sleeve 142 and the inner cavity of the body 12, and the sealing performance of the constant temperature control device 10 is ensured.
Further, the water mixing assembly 14 further includes a third sealing ring 147 disposed between the valve core 164 and the fixed seat 162. Specifically, the number of the third sealing rings 147 is two, and the two third sealing rings 147 are disposed on the valve core 164 at intervals along the axial direction of the valve core 164, so as to perform a sealing function, and prevent the hot water in the hot water flow passage 1442 from leaking between the valve core 164 and the fixing seat 162.
Further, the water mixing assembly 14 further includes a fourth sealing ring 145 disposed between the fixing base 162 and the inner cavity of the body 12. Specifically, the number of the two fourth sealing rings 145 is two, and the two fourth sealing rings 145 are disposed on the fixing seat 162 along the axial direction of the body 12 at intervals, so as to perform a sealing function, and prevent the hot water in the hot water flow passage 1442 from leaking between the fixing seat 162 and the inner cavity of the body 12.
In one embodiment, the water mixing assembly 14 further includes a sealing member 149, the inner cavity of the body 12 is formed with an annular limiting portion 128, and an end of the cold water sleeve 142 away from the hot water sleeve 144 is abutted and limited at the limiting portion 128; the seal is disposed between the cold water jacket 142 and the stop 128. Specifically, the inner cavity of the body 12 extends inward at the mixed water outlet 126 to form the aforementioned limiting portion 128, and an end of the cold water sleeve 142 away from the hot water sleeve 144 abuts against and is limited at the limiting portion 128. In particular embodiments, the seal 149 is a seal ring.
It should be understood that the limiting portion 128 is annular, and a channel communicating the mixed water flow channel 1424 and the mixed water outlet 126 is formed in an annular region thereof. The sealing member is disposed between the cold water jacket 142 and the limiting portion 128, so as to prevent the mixed water from leaking from the joint therebetween, and further ensure the tightness of the thermostatic control device 10.
In an embodiment, the thermostat 10 further includes a first temperature sensor 50 (see fig. 2), and the first temperature sensor 50 is connected to the controller 70 of the electric water heater 100 and is located at the mixed water outlet 126. The first temperature sensor 50 is used for monitoring the water temperature at the mixed water outlet 126 so as to feed back to the controller 70, so that the controller 70 can control and adjust the final mixed water temperature.
Based on the above-mentioned thermostat control device 10, as shown in fig. 1 and 7, the present invention further provides an electric water heater 100, and the electric water heater 100 includes the thermostat control device 10 according to any of the above embodiments.
The electric water heater 100 further comprises a shell 20, a liner 30 capable of containing liquid, a water inlet pipe 32 and a water outlet pipe 34 extending into the liner 30. A water outlet end of the water inlet joint 18 of the thermostatic control device 10 is connected with a water inlet pipe 32 of the electric water heater 100, and a water inlet end of the water outlet joint 19 is connected with a water outlet pipe 34 of the electric water heater 100. Further, the electric water heater 100 further comprises two anti-electric walls 40, wherein the water inlet pipe 32 of the electric water heater 100 is connected with one anti-electric wall 40 and then is connected with the water outlet end corresponding to the water inlet joint 18, and the water outlet pipe 34 of the electric water heater 100 is connected with the other anti-electric wall 40 and then is connected with the water inlet end of the water outlet joint 19.
It is understood that the electricity-proof wall 40 is a well-known technology in the water heater arts, and the specific structure and principle thereof will not be described herein.
Further, the electric water heater 100 further includes a controller 70, and the first temperature sensor 50 is connected to the controller 70 and located at the mixed water outlet 126. The controller 70 is configured to control the driving element 11 according to the water temperature at the mixed water outlet 126 monitored by the first temperature sensor 50 and the preset water outlet temperature, so as to drive the valve core 164 to rotate along the preset direction, thereby adjusting the flow rate of the hot water flowing into the mixed water cavity 15 from the hot water flow passage 1442, and adjusting the flow rate of the cold water flowing into the mixed water cavity 15 from the cold water flow passage 1422, so as to adjust the final mixed water temperature.
Further, the electric water heater 100 further includes a touch display device 80, and the touch display device 80 is connected to the controller 70 for operatively inputting the preset water outlet temperature. Specifically, the touch display device 80 is a touch display panel.
In this way, the user inputs the ideal preset water outlet temperature through the touch display device 80, the controller 70 compares the monitored temperature data fed back by the first temperature sensor 50 with the preset water outlet temperature, and outputs a control command to control the driving element 11, so as to adjust the water mixing temperature at the water mixing water outlet 126 to be matched with the preset water outlet temperature.
It should be noted that the fact that the mixed water temperature at the mixed water outlet 126 matches the preset water outlet temperature means that the mixed water temperature and the preset water outlet temperature may be equal to each other or may fluctuate within a certain deviation range.
In an embodiment, the electric water heater 100 further includes a heating tube set, the heating tube set includes a first heating tube 62 and a second heating tube 64, the first heating tube 62 is disposed at the bottom of the liner 30, and the second heating tube 64 is disposed at the top of the liner 30. Specifically, the water outlet of the water inlet pipe 32 is located approximately at the bottom of the liner 30, and the water inlet of the water outlet pipe 34 is located approximately at the top of the liner 30.
Further, the electric water heater 100 further includes a water outlet pipe 34 extending into the inner container 30, and a second temperature sensor (not shown) connected to the controller 70, wherein the second temperature sensor is disposed in the inner container 30 and located at an inlet of the water outlet pipe 34. Specifically, the controller 70 is further configured to control the first heating pipe 62 to be heated or disconnected from the second heating pipe 64 according to the water temperature monitored by the second temperature sensor.
In this way, by alternately or simultaneously controlling the heating of the first heating pipe 62 and the second heating pipe 64, the water temperature at the inlet of the water outlet pipe 34 is ensured to be at a certain temperature, so that the electric water heater 100 can always output hot water, further plays a role of capacity increase, and improves the user experience, so that the liner 30 can replace the large-volume water tank liner 30, and the occupied area of the water heater is reduced.
Further, the electric water heater 100 further includes a third temperature sensor (not shown) disposed in the inner container 30 and spaced apart from the outlet of the water inlet pipe 32 by a predetermined distance. Specifically, the controller 70 is further configured to control the first heating pipe 62 to be heated or disconnected from the second heating pipe 64 according to the water temperature monitored by the second temperature sensor and the water temperature monitored by the third temperature sensor.
For example, in one embodiment, when the water temperature T Top ≤T Is provided with -10 ℃ at the top of the liner 30, the second heating pipe 64 starts to work to heat the water at the top of the liner 30, so that the water at the top of the liner 30 can quickly reach the requirement, the quick heating function can be better realized, and the waiting time of the user can be reduced. When the water temperature at the top of the liner 30 reaches T Top ≥T Is provided with -10 ℃, the second heating pipe 64 stops working, at the moment, the first heating pipe 62 starts working until T Bottom ＝T Is provided with stops, at the moment, the water in the liner 30 is heated sufficiently, and the amount of water mixed by hot water and cold water is more when the water is used, so that the electric water heater 100 can always output hot water, and the purpose of greatly increasing the capacity is realized.
It should be appreciated that, during use, the first heating tube 62 and the second heating tube 64 can be automatically selected to be heated alternately or simultaneously according to the water temperature, so that waste caused by simultaneous heating of the two heating tubes is avoided, and energy is saved.
The constant temperature control device 10 and the electric water heater 100 of the invention have the following advantages compared with the prior art:
1) Through the movement of the valve core 164, the flow of hot water and the flow of cold water entering the water mixing cavity 15 can be accurately regulated, so that the quick and stable constant-temperature water outlet is realized, and the use is convenient;
2) The water outlet temperature range is wide, the full coverage from the tap water temperature to the hot water temperature of the liner 30 is realized, the water use selection range of a user is improved, and the applicability and the use convenience are improved;
3) The electric water heater 100 is ensured to have hot water output all the time, thereby playing a role of capacity enhancement and improving user experience;
4) The first heating pipe 62 and the second heating pipe 64 can be automatically selected to be heated alternately or simultaneously according to the water temperature, so that waste caused by simultaneous heating of the two heating pipes is avoided, and energy is saved.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. A thermostatic control device (10) of an electric water heater, characterized by comprising:
the body (12) is arranged in a hollow way, and the body (12) is provided with a cold water inlet (122), a hot water inlet and a mixed water outlet (126);
A water inlet joint (18) and a water outlet joint (19), wherein the water inlet joint (18) is communicated with the cold water inlet (122), and the water outlet joint (19) is connected with the hot water inlet;
the water mixing assembly (14) comprises a cold water sleeve (142) and a hot water sleeve (144) which are hermetically arranged in the inner cavity of the body (12), and a guide part (148) arranged in the cold water sleeve (142), wherein one ends of the cold water sleeve (142) and the hot water sleeve (144) which are opposite to each other are butted to form a water mixing cavity (15); a hot water runner (1442) is arranged in the hot water sleeve (144), one end of the hot water runner (1442) is communicated with the hot water inlet, and the other end of the hot water runner is communicated with the water mixing cavity (15); the cold water sleeve (142) is internally provided with a cold water flow passage (1422) and a mixed water flow passage (1424) which are mutually spaced, one end of the cold water flow passage (1422) is communicated with the cold water inlet (122), the other end of the cold water flow passage is communicated with the mixed water cavity (15), one end of the mixed water flow passage (1424) is communicated with the mixed water cavity (15), the other end of the cold water flow passage is communicated with the mixed water outlet (126), and one end of the guide part (148) extends into the mixed water cavity (15) along the cold water flow passage (1422);
The control valve assembly (16) comprises a fixed seat (162) which is arranged at one end of the body (12) in a sealing way and a valve core (164) which is connected with the fixed seat (162) in a threaded way in the circumferential direction in an axial movable way; one end of the valve core (164) penetrates through the hot water flow passage (1442) and stretches into the water mixing cavity (15), a first blocking part (166) and a second blocking part (168) are arranged at intervals, a guide hole matched with the guide part (148) is formed in one end of the valve core (164) stretching into the water mixing cavity (15), and the guide part (148) is in sliding fit with the guide hole so as to guide the valve core (164) along the axial movement of the body (12);
The driving element (11), the driving element (11) is installed in the fixing seat (162), and is in transmission connection with one end of the valve core (164) away from the water mixing cavity (15), so as to drive the valve core (164) to rotate along a preset direction, and further enable the valve core (164) to move along the axial direction of the body (12), so as to adjust the gap between the first blocking part (166) and the opening end of the hot water channel (1442) and the gap between the second blocking part (168) and the opening end of the cold water channel (1422), and further adjust the hot water flow of the hot water channel (1442) flowing into the water mixing cavity (15) and the cold water flow of the cold water channel (1422) flowing into the water mixing cavity (15).
2. The thermostatic control device (10) of an electric water heater according to claim 1, wherein the thermostatic control device (10) of an electric water heater further comprises a rotary transmission member (13), the rotary transmission member (13) is rotatably connected in the fixed seat (162), an output end of the driving element (11) is matched with one end of the rotary transmission member (13), and one end of the valve core (164) away from the water mixing cavity (15) is matched with the other end of the rotary transmission member (13).
3. The thermostatic control device (10) of an electric water heater according to any one of claims 1-2, wherein the water mixing assembly (14) further comprises a first seal ring (141) disposed on an outer wall of the hot water jacket (144) and a second seal ring (143) disposed on an outer wall of the cold water jacket (142);
The first sealing ring (141) and the second sealing ring (143) are axially positioned between the hot water inlet and the cold water inlet (122) along the body (12).
4. The thermostatic control device (10) of an electric water heater according to any one of claims 1-2, wherein the cold water inlet (122) and the hot water inlet are provided in a circumferential surface of the body (12);
the water mixing outlet (126) is arranged at one end of the body (12) far away from the fixing seat (162).
5. The thermostatic control device (10) of an electric water heater as set forth in claim 4 wherein said water mixing assembly (14) further includes a seal (149), said body (12) inner cavity being formed with an annular stop portion, an end of said cold water jacket (142) remote from said hot water jacket (144) being in abutment with said stop portion;
the seal (149) is disposed between the cold water jacket (142) and the limit portion.
6. The thermostatic control device (10) of an electric water heater according to any one of claims 1-2, further comprising a first temperature sensor (50), wherein the first temperature sensor (50) is connected to a controller (70) of the electric water heater and is located at the mixed water outlet (126).
7. The electric water heater (100), characterized by comprising an inner container (30), a heating tube set, a controller (70) and the constant temperature control device (10) according to any one of claims 1-6, wherein the electric water heater (100) further comprises a second temperature sensor connected with the controller (70), the heating tube set comprises a first heating tube (62) and a second heating tube (64) connected with the controller (70), the first heating tube (62) is arranged at the bottom of the inner container (30), and the second heating tube (64) is arranged at the top of the inner container (30);
The second temperature sensor is arranged in the inner container (30) and is positioned at the inlet of the water outlet pipe (34).
8. The electric water heater (100) of claim 7, wherein the electric water heater (100) further comprises a third temperature sensor connected to the controller (70), the third temperature sensor being disposed in the inner container (30) a predetermined distance from the outlet of the water inlet tube (32).
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| CN201711480266.0A CN108006949B (en) | 2017-12-29 | 2017-12-29 | Electric water heater and constant temperature control device thereof |
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| CN201711480266.0A CN108006949B (en) | 2017-12-29 | 2017-12-29 | Electric water heater and constant temperature control device thereof |
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| CN108006949B true CN108006949B (en) | 2024-06-21 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282498A (en) * | 2018-10-18 | 2019-01-29 | 广东格美淇电器有限公司 | A kind of anticreep waterpipe couplings and the water heater for being equipped with the anticreep waterpipe couplings |
| CN112682965B (en) * | 2019-10-17 | 2022-03-08 | 宁波方太厨具有限公司 | Water temperature adjusting device and water heater comprising same |
| CN111811144B (en) * | 2020-06-15 | 2021-12-14 | 黄春美 | Water temperature presetting device of electric water heater |
| CN112484293B (en) * | 2020-11-20 | 2022-05-13 | 青岛经济技术开发区海尔热水器有限公司 | Instant electric water heater |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1920437A (en) * | 2005-08-25 | 2007-02-28 | 王焱 | Energy-saving control method for electric heater and electric heating system thereof |
| CN101280852A (en) * | 2008-05-07 | 2008-10-08 | 宁波方太厨具有限公司 | Intelligent thermostatic valve |
| CN201954059U (en) * | 2010-12-22 | 2011-08-31 | 南方泵业股份有限公司 | Check water drainer |
| CN208108459U (en) * | 2017-12-29 | 2018-11-16 | 合肥万博电气有限公司 | Electric heater and its thermostatically-controlled equipment |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0237513B2 (en) * | 1983-02-22 | 1990-08-24 | Matsushita Electric Ind Co Ltd | YUMIZUKONGOSOCHI |
| KR930000669B1 (en) * | 1988-09-06 | 1993-01-29 | 마쯔시다덴기산교 가부시기가이샤 | Automatic hot water supply apparatus |
| EP1876378B1 (en) * | 2005-04-27 | 2013-03-20 | Eagle Industry Co., Ltd. | Seal structure and control valve using the same |
| GB2436606B (en) * | 2006-03-29 | 2010-09-15 | Aqualisa Products Ltd | Water valve assembly |
| CN102012094B (en) * | 2009-09-04 | 2015-03-25 | 博西华电器（江苏）有限公司 | Water heater |
| CN102720843B (en) * | 2012-06-04 | 2013-07-10 | 西安交通大学 | Large-diameter proportional pneumatic valve directly driven by alternating-current servo motor |
| CN106195335A (en) * | 2016-09-13 | 2016-12-07 | 厦门建霖工业有限公司 | The constant temperature diverter valve spool of a kind of band Flow-rate adjustment and constant-temperature tap |
| CN206449249U (en) * | 2017-01-17 | 2017-08-29 | 珠海市舒丽玛温控卫浴设备有限公司 | A kind of big flow constant temperature constant pressure valve core and its tap |
| CN107435750B (en) * | 2017-08-24 | 2023-07-18 | 九牧厨卫股份有限公司 | Special constant temperature valve core and water outlet structure for gas water heater |
-
2017
- 2017-12-29 CN CN201711480266.0A patent/CN108006949B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1920437A (en) * | 2005-08-25 | 2007-02-28 | 王焱 | Energy-saving control method for electric heater and electric heating system thereof |
| CN101280852A (en) * | 2008-05-07 | 2008-10-08 | 宁波方太厨具有限公司 | Intelligent thermostatic valve |
| CN201954059U (en) * | 2010-12-22 | 2011-08-31 | 南方泵业股份有限公司 | Check water drainer |
| CN208108459U (en) * | 2017-12-29 | 2018-11-16 | 合肥万博电气有限公司 | Electric heater and its thermostatically-controlled equipment |
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| CN108006949A (en) | 2018-05-08 |
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Effective date of registration: 20211231 Address after: 231100 Changfeng Shuangfeng Economic Development Zone, Hefei City, Anhui Province Applicant after: HEFEI WANHE ELECTRICAL CO.,LTD. Address before: 231131 No. 020, Huainan North Road West, Changfeng Shuangfeng Economic Development Zone, Hefei, Anhui Applicant before: HEFEI WANBO ELECTRIC CO.,LTD. |
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