CN113494773A - Secondary heating water boiler - Google Patents
Secondary heating water boiler Download PDFInfo
- Publication number
- CN113494773A CN113494773A CN202110903694.XA CN202110903694A CN113494773A CN 113494773 A CN113494773 A CN 113494773A CN 202110903694 A CN202110903694 A CN 202110903694A CN 113494773 A CN113494773 A CN 113494773A
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- Prior art keywords
- water
- inner container
- heating
- heating inner
- inlet pipe
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- 239000008236 heating water Substances 0.000 title abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 139
- 238000010438 heat treatment Methods 0.000 claims abstract description 97
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 31
- 239000010703 silicon Substances 0.000 claims abstract description 31
- 230000017525 heat dissipation Effects 0.000 claims abstract description 16
- 229920000742 Cotton Polymers 0.000 claims abstract description 5
- 238000010992 reflux Methods 0.000 claims abstract description 5
- 238000009413 insulation Methods 0.000 claims abstract description 3
- 239000000523 sample Substances 0.000 claims description 23
- 238000004321 preservation Methods 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 238000009835 boiling Methods 0.000 description 3
- 238000005485 electric heating Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
- F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
- F24H1/201—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply
- F24H1/202—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply with resistances
-
- 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
-
- 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
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
-
- 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
-
- 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
- F24H2250/00—Electrical heat generating means
- F24H2250/02—Resistances
Landscapes
- 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)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a secondary heating water boiler which comprises a shell, a water inlet pipe, a Venturi mixer reflux cavity, a heating inner container, a water outlet pipe and an electronic control screen, wherein the water inlet pipe penetrates through the upper part of the shell, the upper part of the water inlet pipe is connected with a flow switch assembly, the outer wall of the water inlet pipe at the lower end of the flow switch assembly is connected with a silicon controlled heat dissipation seat, silicon controlled is installed on the silicon controlled heat dissipation seat, the middle part of the water inlet pipe is connected with the Venturi mixer reflux cavity, and the lower end of the water inlet pipe is connected to the bottom of the heating inner container; the bottom of the heating inner container is provided with a temperature controller; under the condition that the water outlet temperature is 100 ℃, high air pressure is not generated, and a pressure release valve protection device is not required to be added; compared with the existing water boiler which can reach 100 ℃, the water boiler has the advantages of low component cost, convenient installation and safer use; the mode of preheating at the bottom and secondary heating at the top is adopted, so that the set temperature value is reached. The heating inner container is externally insulated by adopting insulation cotton, so that energy is saved; the controllable silicon is cooled by the water inlet pipe, and no additional heat dissipation device is needed.
Description
Technical Field
The invention relates to the field of water boilers, in particular to a secondary heating water boiler.
Background
The water boiler is a device for heating boiled water by converting electric energy or chemical energy into heat energy, the capacity of the water boiler is approximately varied from 2 liters to 200 liters according to the requirements of different groups, and the power range is varied from 600W to 22 KW.
A water boiler is also called a boiling water boiler, and is drinking water equipment which is designed and developed for meeting the requirement of more people on drinking boiled water and is used for producing boiled water by converting electric energy or other fuels into heat energy through combustion. The boiler can be divided into an electric heating boiler and a steam boiler according to a heating source, wherein the electric heating boiler is divided according to different heating principles: conventional water boilers, boiling water boilers, stepping water boilers, instant-boiling water boilers, hot-push instant-heating water boilers and electromagnetic water boilers. The water boiler is divided into the following parts according to the working form: water storage type water boilers and instant heating type water boilers; the steam boiler is divided into an intermittent steam boiler and a continuous steam boiler. The electric water boiler is generally simpler and easier to use than a steam boiler, is cheap and good, and has small volume, so most of the electric water boilers appearing on the market are shadows of the electric water boilers.
In the prior art, the temperature value that electric boiler heated water does not exceed 98 degrees centigrade, because the atmospheric pressure in the heating courage can be very big after exceeding 98 degrees centigrade, need use the heating inner bag that the section of thick bamboo wall is thick to need increase the relief valve and guarantee the security, so increased the spare part quantity of boiler, increased cost and installation condition complicacy. Whether the temperature can reach more than 98 ℃ to 100 ℃ or not is difficult to achieve, and parts such as thickening the cylinder wall and increasing a pressure relief valve device are not needed.
Disclosure of Invention
In order to solve the problems, the invention provides a secondary heating water boiler.
In order to achieve the purpose, the invention adopts the technical scheme that:
a secondary heating water boiler comprises a shell, a water inlet pipe, a Venturi mixer backflow cavity, a heating inner container, a water outlet pipe and an electronic control screen, wherein the water inlet pipe penetrates through the upper part of the shell, the upper part of the water inlet pipe is connected with a flow switch assembly, the outer wall of the water inlet pipe at the lower end of the flow switch assembly is connected with a silicon controlled heat dissipation seat, silicon controlled is installed on the silicon controlled heat dissipation seat, high temperature generated when the silicon controlled works is transferred to a cold water inlet pipe with lower temperature in a heat transfer mode, the Venturi mixer backflow cavity is connected to the middle part of the water inlet pipe, the lower end of the water inlet pipe is connected to the bottom of the heating inner container, and hot water is fully output in a bottom water inlet mode;
the temperature controller is arranged at the bottom of the heating inner container to prevent the water boiler from being burnt out by dry burning; the heating rod I penetrates through the bottom of the heating liner and enters the heating liner, is arranged at the lower end of the heating liner, has a preheating effect, penetrates through the bottom of the heating liner and enters the heating liner, is arranged at the middle upper end of the heating liner, and is positioned near the water outlet pipe and used for secondary heating; the water outlet pipe is arranged at the top end of the heating inner container, the water temperature probe I and the water temperature probe II penetrating into the heating inner container are further arranged at the top end of the heating inner container, the tail end of the water temperature probe I is arranged at the middle upper end inside the heating inner container and used for detecting the preheating water temperature in the heating inner container, and the tail end of the water temperature probe II is arranged at the upper end inside the heating inner container and used for detecting the water temperature of the outlet water;
the lower part of the shell is provided with a power supply seat, the power supply seat is connected with a power supply controller arranged in the shell, and the power supply controller is connected with an electronic control screen arranged on the side surface of the shell; the heating rod I is connected with a power supply controller, the heating rod II is connected with a controlled silicon through a lead, the controlled silicon is connected with the power supply controller through a lead, and the output power of the heating rod II is controlled by controlling the output electric energy of the controlled silicon; the flow switch assembly, the temperature controller, the water temperature probe I and the water temperature probe II are connected with the electronic control screen and respectively transmit signals to the electronic control screen for cooperative control, and the electric signals transmitted by the flow switch assembly control whether the heating rod II is started to heat or not; the electronic control screen comprises a control circuit board and a display screen.
Preferentially, the outer wall of the heating inner container is provided with a heat preservation layer, the I heating rod can effectively preserve heat after being heated and preheated, and the useless consumption of heat is reduced.
Preferentially, the heat-insulating layer is made of heat-insulating cotton, so that the heat-insulating layer is light in weight, good in heat resistance and good in heat-insulating effect.
Preferentially, the water baffle is arranged at the joint of the water inlet pipe at the bottom inside the heating liner, so that the situation that the water inlet flow velocity is too high and cold water is flushed to the position of the water outlet pipe is prevented.
Preferentially, the silicon controlled heat dissipation seat is made of stainless steel or copper, and the metal has good heat dissipation effect and does not rust.
From the above description of the present invention, it can be seen that the advantages of the present invention over the prior art are:
1. the water outlet temperature can reach 100 ℃ under the condition that the thickness of the cylinder wall is not increased and the pressure release valve is increased.
2. Compared with the existing water boiler which can reach 100 ℃, the water boiler has lower component cost.
3. The mode of secondary heating at the top end is adopted, so that no electricity is wasted since the set temperature value is reached.
4. The heating inner container is externally insulated by heat insulation cotton, so that energy is saved.
5. The controllable silicon is cooled by the water inlet pipe, and no additional heat dissipation device is needed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts;
FIG. 1 is a left perspective view of the present invention;
FIG. 2 is a rear perspective view of the present invention;
FIG. 3 is a right perspective view of the present invention;
1. casing 2, water inlet pipe 3, venturi mixer return cavity 4, heating inner container 5, water outlet pipe 6, electronic control screen 7, flow switch assembly 8, silicon controlled heat sink 9, silicon controlled 10, heating rod I11, heating rod II 12, water temperature probe I13, water temperature probe II 14, power supply seat 15, power supply controller 16, water baffle 17, heat preservation layer 18, temperature controller
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention will be more clearly and clearly defined.
As shown in fig. 1-3, a secondary heating water boiler comprises a shell 1, a water inlet pipe 2, a venturi mixer reflux cavity 3, a heating inner container 4, a water outlet pipe 5 and an electronic control screen 6, wherein the water inlet pipe 2 penetrates through the upper part of the shell 1, the upper part of the water inlet pipe 2 is connected with a flow switch assembly 7, the outer wall of the water inlet pipe 2 at the lower end of the flow switch assembly 7 is connected with a silicon controlled heat dissipation seat 8, a silicon controlled 9 is installed on the silicon controlled heat dissipation seat 8, high temperature is transferred to the water inlet pipe 2 which is lower in temperature and flows in a heat transfer mode, the venturi mixer reflux cavity 3 is connected to the middle part of the water inlet pipe 2, the lower end of the water inlet pipe 2 is connected to the bottom of the heating inner container 4, and the influence on water outlet from the upper part is reduced by adopting a bottom water inlet mode;
the bottom of the heating inner container 4 is provided with a temperature controller 18 to prevent the water boiler from being burnt out by dry burning; the heating rod I10 penetrates through the bottom of the heating inner container 4, enters the heating inner container 4, is arranged at the lower end of the heating inner container, has a preheating effect, penetrates through the bottom of the heating inner container 4, enters the heating inner container 4, is arranged at the middle upper end of the heating inner container, and is used for secondary heating, and the heating rod II 11 is positioned near the water outlet pipe 5 and is used for secondary heating; the water outlet pipe 5 is arranged at the top end of the heating inner container 4, a water temperature probe I12 and a water temperature probe II 13 penetrating into the heating inner container 5 are further arranged at the top end of the heating inner container 4, the tail end of the water temperature probe I12 is arranged at the middle upper end inside the heating inner container 4 and used for detecting the temperature of preheated water in the heating inner container 4, and the tail end of the water temperature probe II 13 is arranged at the upper end inside the heating inner container 4 and used for detecting the temperature of discharged water;
a power supply seat 14 is arranged at the lower part of the shell 1, the power supply seat 14 is connected with a power supply controller 15 arranged in the shell 1, and the power supply controller 15 is connected with an electronic control screen 6 arranged on the side surface of the shell 1; the heating rod I10 is connected with a power controller 15, the heating rod II 11 is connected with a controlled silicon 9 through a lead, the controlled silicon 9 is connected with the power controller 15 through a lead, and the output power of the heating rod II 11 is controlled by controlling the output electric energy of the controlled silicon 9; the flow switch assembly 7, the temperature controller 18, the water temperature probe I12 and the water temperature probe II 13 are connected with the electronic control screen 6 and respectively transmit signals to the electronic control screen 6 for cooperative control, and the electric signals transmitted by the flow switch assembly 7 control whether the heating rod II 11 is started to heat or not; the electronic control screen 6 comprises a control circuit board and a display screen.
The outer wall of the heating inner container 4 is provided with a heat preservation layer 17, and the I10 heating rod can effectively preserve heat after being heated and preheated, so that the useless consumption of heat is reduced.
The heat preservation layer 17 is made of heat preservation cotton, and is light in material, good in heat resistance and good in heat preservation effect.
The water baffle 16 is arranged at the joint of the bottom water inlet pipe 2 in the heating inner container 4, so that the influence of cold water on the water outlet position due to the too high water inflow speed is prevented.
The silicon controlled heat dissipation seat 8 is made of stainless steel or copper, so that the heat dissipation effect is good, and the silicon controlled heat dissipation seat is not rusted.
The temperature of hot water is manually set on the electronic control screen 6, the preheating temperature is set to be 85-98 ℃ in the first group, and the outlet water temperature is set to be 85-100 ℃ in the second group; the second set of temperatures is not less than the first set of temperatures.
The first group, the set temperature is 85-98 ℃: water enters the heating inner container 4 from the water inlet pipe 2, the heating rod I10 starts to work to heat the water in the inner container, and the water temperature probe I12 stops working after detecting that the water temperature reaches a set temperature; the water in the whole heating inner container 4 is gradually cooled along with the time lapse, so when the water temperature probe I12 detects that the temperature is lower than the set temperature, the electronic control screen 6 controls the power supply controller 15 to start the heating rod I10 to heat to the set temperature, the heat preservation steps are repeated, and the induction temperature is-2 ℃.
And in the second group, the water outlet temperature is set to be 85-100 ℃: when a hot water valve is opened, cold water enters the full-filling heating inner container 4 from the water inlet pipe 2, water is discharged from the water outlet pipe 5, a flow switch assembly 7 of the water inlet pipe 2 transmits a signal to the electronic control screen 6 and the power controller 15, a water temperature probe II 13 detects the water temperature to cooperatively work to release a signal and open the silicon controlled rectifier 9, at the moment, the heating rod II 11 connected with the electronic control screen starts auxiliary heating to reach the set water outlet temperature, and at the moment, hot water with the temperature of 85-100 ℃ flows out from the water outlet pipe 5. The electronic control panel 6 and the power controller 15 can work cooperatively to automatically adjust the power output by the controllable silicon 9 to the heating rod II 11 according to the water outlet requirement, so as to ensure that the water flowing out of the water outlet pipe 5 reaches the set water temperature of 85-100 ℃. And the heating rod II 11 can work only when the temperature of the outlet water does not reach the set temperature.
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machines, the parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a secondary heating boiler, includes casing, inlet tube, venturi mixer backward flow chamber, heating inner bag, outlet pipe and electronic control screen, its characterized in that:
the water inlet pipe penetrates through the upper part of the shell, the upper part of the water inlet pipe is connected with the flow switch assembly, the outer wall of the water inlet pipe at the lower end of the flow switch assembly is connected with a silicon controlled heat dissipation seat, the silicon controlled heat dissipation seat is provided with a silicon controlled, the middle part of the water inlet pipe is connected with a Venturi mixer reflux cavity, and the lower end of the water inlet pipe is connected to the bottom of the heating inner container;
the bottom of the heating inner container is provided with a temperature controller; a heating rod I which penetrates through the bottom of the heating inner container and enters the heating inner container and is arranged at the lower end of the heating inner container, and a heating rod II which penetrates through the bottom of the heating inner container and enters the heating inner container and is arranged at the middle upper end of the heating inner container; the water heating device is characterized in that a water outlet pipe is arranged at the top end of the heating inner container, a water temperature probe I and a water temperature probe II penetrating into the heating inner container are further arranged at the top end of the heating inner container, the tail end of the water temperature probe I is arranged at the middle upper end in the heating inner container, and the tail end of the water temperature probe II is arranged at the upper end in the heating inner container;
the lower part of the shell is provided with a power supply seat, the power supply seat is connected with a power supply controller arranged in the shell, and the power supply controller is connected with an electronic control screen arranged on the side surface of the shell; the heating rod I is connected with the power controller, the heating rod II is connected with the controlled silicon through a lead, and the controlled silicon is connected with the power controller through a lead; the flow switch assembly, the temperature controller, the water temperature probe I and the water temperature probe II are connected with the electronic control screen; the electronic control screen comprises a control circuit board and a display screen.
2. A reheat water boiler as set forth in claim 1, wherein: and the outer wall of the heating inner container is provided with a heat insulation layer.
3. A reheat water boiler as set forth in claim 2, wherein: the heat preservation layer is made of heat preservation cotton.
4. A reheat water boiler as set forth in claim 2, wherein: and a water baffle is arranged at the joint of the water inlet pipe at the bottom inside the heating inner container.
5. A reheat water boiler as set forth in claim 1, wherein: the controllable silicon heat dissipation seat is made of stainless steel or copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110903694.XA CN113494773A (en) | 2021-08-06 | 2021-08-06 | Secondary heating water boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110903694.XA CN113494773A (en) | 2021-08-06 | 2021-08-06 | Secondary heating water boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113494773A true CN113494773A (en) | 2021-10-12 |
Family
ID=77996918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110903694.XA Pending CN113494773A (en) | 2021-08-06 | 2021-08-06 | Secondary heating water boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113494773A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608830A (en) * | 2008-06-16 | 2009-12-23 | 海尔集团公司 | Electric heater |
| CN101858643A (en) * | 2010-06-23 | 2010-10-13 | 福州斯狄渢电热水器有限公司 | Instantaneous water heater capable of controlling heating temperature automatically |
| CN107289619A (en) * | 2017-08-11 | 2017-10-24 | 深圳市润隆电子有限公司 | A kind of intelligent water heater safely and fast |
| CN209013495U (en) * | 2018-11-08 | 2019-06-21 | 厦门奥华斯电器有限公司 | A kind of cold and hot water heater |
-
2021
- 2021-08-06 CN CN202110903694.XA patent/CN113494773A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608830A (en) * | 2008-06-16 | 2009-12-23 | 海尔集团公司 | Electric heater |
| CN101858643A (en) * | 2010-06-23 | 2010-10-13 | 福州斯狄渢电热水器有限公司 | Instantaneous water heater capable of controlling heating temperature automatically |
| CN107289619A (en) * | 2017-08-11 | 2017-10-24 | 深圳市润隆电子有限公司 | A kind of intelligent water heater safely and fast |
| CN209013495U (en) * | 2018-11-08 | 2019-06-21 | 厦门奥华斯电器有限公司 | A kind of cold and hot water heater |
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Application publication date: 20211012 |
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| RJ01 | Rejection of invention patent application after publication |