CN112178945A - Intelligent overvoltage protection device of electric water heater - Google Patents
Intelligent overvoltage protection device of electric water heater Download PDFInfo
- Publication number
- CN112178945A CN112178945A CN202011054323.0A CN202011054323A CN112178945A CN 112178945 A CN112178945 A CN 112178945A CN 202011054323 A CN202011054323 A CN 202011054323A CN 112178945 A CN112178945 A CN 112178945A
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- Prior art keywords
- water heater
- electric water
- fixedly connected
- sealing
- valve
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 107
- 238000007789 sealing Methods 0.000 claims abstract description 70
- 230000001012 protector Effects 0.000 claims abstract description 30
- 230000001681 protective effect Effects 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 13
- 238000005485 electric heating Methods 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 238000003287 bathing Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004023 plastic welding Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Images
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
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/048—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded combined with other safety valves, or with pressure control devices
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/061—Hermetically-sealed casings sealed by a gasket held between a removable cover and a body, e.g. O-ring, packing
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/069—Other details of the casing, e.g. wall structure, passage for a connector, a cable, a shaft
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses an intelligent overvoltage protection device of an electric water heater, which relates to the technical field of electric water heaters, and particularly relates to an intelligent overvoltage protection device of an electric water heater. Through setting up sealed safety cover in overvoltage protector's outside, utilize protection casing and last protection casing down to protect overvoltage protector, wherein the sealing strip joint is in the inside of seal groove, prevents down that the junction of protection casing and last protection casing from intaking, and sealed plug can seal wire connection department in the outside of power cord, avoids overvoltage protector's inside to intake and wets.
Description
Technical Field
The invention relates to the technical field of electric water heaters, in particular to an intelligent overvoltage protection device of an electric water heater.
Background
The electric water heater is one of three water heaters which are parallel to a gas water heater and a solar water heater, and can be divided into a water storage type (also called a volumetric type or a heat storage type), an instant heating type and a quick heating type (also called a semi-water storage type) according to the heating power.
An overvoltage protector is usually installed in a water heater to protect a circuit in the using process, but some electric water heaters are installed in a bathroom to be used for bathing, and because water vapor can be generated in the bathroom during bathing, the overvoltage protector is easily affected by damp and short circuit, the tripping condition often occurs, the use of the electric water heater is affected, meanwhile, when water in the electric water heater is heated, steam is generated, the air pressure in the electric water heater is increased, when the air pressure is too high, the inner container of the electric water heater is easily expanded and deformed, and even the danger of explosion occurs, and therefore the intelligent overvoltage protection device for the electric water heater is provided.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an intelligent overvoltage protection device of an electric water heater, which solves the problems in the background technology.
In order to achieve the purpose, the invention is realized by the following technical scheme: an intelligent overvoltage protection device of an electric water heater comprises an electric water heater body, wherein a power line is fixedly connected to the right side of the electric water heater body, a sealing protection cover is arranged in the middle of the power line, an overvoltage protector is fixedly mounted inside the sealing protection cover, the sealing protection cover comprises a lower protection cover and an upper protection cover, a sealing groove is formed in the outer portion of the lower protection cover, a lower sealing element is fixedly connected to the bottom of the lower protection cover, a sealing rubber plug is arranged inside the lower sealing element, an operation window is arranged in the middle of the upper protection cover, a sealing strip is fixedly connected to the outer portion of the upper protection cover, an upper sealing element is fixedly connected to the bottom of the upper protection cover, a controller is fixedly connected to the bottom of the electric water heater body, a cold water inlet pipe is fixedly, the top of manual relief valve is provided with the electromagnetic safety valve, the bottom fixedly connected with level sensor of electric water heater body inner chamber, the top fixedly connected with blast pipe of electric water heater body, the top fixedly connected with manometer of blast pipe, the both sides fixedly connected with manual relief valve and the automatic relief valve of blast pipe.
Optionally, the lower protective cover is matched with the upper protective cover, the sealing strip is clamped in the sealing groove, and the upper sealing piece corresponds to the lower sealing piece and is clamped outside the sealing rubber plug.
Optionally, the sealing rubber plug is movably sleeved outside the power line, the sealing rubber plug is made of a rubber material, and the sealing rubber plug is in interference fit with the lower sealing element.
Optionally, the front of overvoltage protector is provided with button switch, overvoltage protector is corresponding with the operating window, the operating window is the preparation of transparent soft plastics material, the operating window adopts plastics welded mode to link together with last protection casing.
Optionally, a temperature controller is arranged in the electric water heater body, the right side of the temperature controller is fixedly connected with the left side of the power line, the left side of the temperature controller is fixedly connected with an electric heating element, and the electric heating element is located in an inner cavity of the electric water heater body.
Optionally, the controller is electrically connected with the electromagnetic safety valve, the liquid level sensor and the temperature controller respectively, and a display and a control button are arranged on the front face of the controller.
Optionally, the bottom of the electric water heater body is fixedly connected with a hot water outlet pipe, the bottom of the hot water outlet pipe is provided with a mixing valve, and the right side of the mixing valve is connected with the left side of the cold water inlet pipe.
Optionally, a valve nozzle is arranged inside the automatic pressure relief valve, a piston is arranged at the top of the valve nozzle, a valve cap is fixedly connected to the top of the piston, the top of the automatic pressure relief valve is placed on the valve cap, a fixing block is fixedly connected to the inside of the automatic pressure relief valve, a pressure spring is fixedly connected to the top of the fixing block, and the top of the pressure spring is fixedly connected to the bottom of the valve cap.
The invention provides an intelligent overvoltage protection device of an electric water heater, which has the following beneficial effects:
1. this electric water heater intelligence overvoltage protector, through setting up sealed safety cover in overvoltage protector's outside, utilize lower protection casing and last protection casing to protect overvoltage protector, wherein the sealing strip joint is in the inside of seal groove, can prevent down the junction of protection casing and last protection casing to intake, and sealed plug can be in the outside of power cord, seal wire connection department, fully guarantee the leakproofness of sealed safety cover, avoid overvoltage protector's inside to intake and wet, prevent overvoltage protector short circuit tripping.
2. This electric water heater intelligence overvoltage protector, cooperation through manual relief valve and electromagnetic safety valve is used, when the inside of electric water heater body is soon to fill up water, both can be through manual relief valve manual closing cold water inlet tube to the inside water injection of electric water heater body, also can utilize level sensor to detect the inside liquid level of electric water heater body, then level sensor gives the controller with liquid level signal transmission, utilize controller control electromagnetic safety valve to close the cold water inlet tube, can avoid the inside water pressure of electric water heater body too big to lead to the electric water heater body to damage.
3. According to the intelligent overvoltage protection device for the electric water heater, the exhaust pipe is arranged at the top of the electric water heater body, the pressure of gas in the electric water heater body is detected by the pressure gauge, when the gas pressure in the electric water heater body is too high, the manual pressure release valve can be manually opened to release pressure and exhaust, meanwhile, the piston and the valve cap are jacked upwards by the aid of air pressure, the automatic pressure release valve automatically exhausts, and the danger of explosion caused by too high gas pressure in the electric water heater body is prevented.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic view of the sealing boot of the present invention in a disassembled configuration;
fig. 4 is a schematic structural diagram of the automatic pressure relief valve of the present invention.
In the figure: 1. the electric water heater body; 2. a power line; 3. sealing the protective cover; 31. a lower protective cover; 311. a sealing groove; 312. a lower seal member; 313. sealing the rubber plug; 32. an upper protective cover; 321. an operating window; 322. a sealing strip; 323. an upper seal member; 4. an overvoltage protector; 41. a push button switch; 5. a controller; 6. a cold water inlet pipe; 7. a manual safety valve; 8. an electromagnetic safety valve; 9. a hot water outlet pipe; 10. a mixing valve; 11. a liquid level sensor; 12. a temperature controller; 13. an electrical heating element; 14. an exhaust pipe; 15. a pressure gauge; 16. a manual pressure relief valve; 17. an automatic pressure relief valve; 171. a valve nozzle; 172. a piston; 173. a bonnet; 174. a fixed block; 175. a pressure spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 4, the present invention provides a technical solution: an intelligent overvoltage protection device of an electric water heater comprises an electric water heater body 1, a power line 2 is fixedly connected to the right side of the electric water heater body 1, a sealing protective cover 3 is arranged in the middle of the power line 2, an overvoltage protector 4 is fixedly installed in the sealing protective cover 3, the sealing protective cover 3 is arranged outside the overvoltage protector 4, the overvoltage protector 4 is protected by a lower protective cover 31 and an upper protective cover 32, internal water inflow of the overvoltage protector 4 is prevented from being affected by damp, short-circuit tripping of the overvoltage protector 4 is prevented, the use safety and stability of the overvoltage protector 4 are improved, a button switch 41 is arranged on the front side of the overvoltage protector 4, the overvoltage protector 4 corresponds to an operation window 321, the operation window 321 is made of transparent soft plastic, the operation window 321 is connected with the upper protective cover 32 in a plastic welding mode, and by arranging the soft transparent operation, the button switch 41 can be operated through the operation window 321, the sealing protection cover 3 does not need to be opened, the damage to the sealing property of the sealing protection cover 3 is avoided, the sealing protection cover 3 comprises a lower protection cover 31 and an upper protection cover 32, a sealing groove 311 is formed in the outer part of the lower protection cover 31, a lower sealing part 312 is fixedly connected to the bottom of the lower protection cover 31, a sealing rubber plug 313 is arranged in the lower sealing part 312, an operation window 321 is arranged in the middle of the upper protection cover 32, a sealing strip 322 is fixedly connected to the outer part of the upper protection cover 32, an upper sealing part 323 is fixedly connected to the bottom of the upper protection cover 32, the lower protection cover 31 is matched with the upper protection cover 32, the sealing strip 322 is clamped in the sealing groove 311, the upper sealing part 323 corresponds to the lower sealing part 312 and is clamped to the outer part of the sealing rubber plug 313, the sealing, the sealing rubber plug 313 is in interference fit with the lower sealing element 312, the sealing strip 322 is clamped in the sealing groove 311, the junction of the lower protective cover 31 and the upper protective cover 32 can be prevented from water inflow, the sealing rubber plug 313 can seal the junction of the sealing protective cover 3 outside the power line 2, the sealing performance of the sealing protective cover 3 is fully ensured, the bottom of the electric water heater body 1 is fixedly connected with the controller 5, the controller 5 is respectively and electrically connected with the electromagnetic safety valve 8, the liquid level sensor 11 and the temperature controller 12, the front of the controller 5 is provided with the display and the control button, the bottom of the controller 5 is fixedly connected with the cold water inlet pipe 6, the outside of the cold water inlet pipe 6 is fixedly connected with the manual safety valve 7, and by arranging the manual safety valve 7, when the water level in the electric water heater body 1 is high and the electromagnetic safety valve 8 cannot be automatically closed due, the cold water inlet pipe 6 can be manually closed through the manual safety valve 7 to play a role of dual protection, the electromagnetic safety valve 8 is arranged at the top of the manual safety valve 7, the bottom of the electric water heater body 1 is fixedly connected with a hot water outlet pipe 9, the bottom of the hot water outlet pipe 9 is provided with a mixing valve 10, the right side of the mixing valve 10 is connected with the left side of the cold water inlet pipe 6, the bottom of the inner cavity of the electric water heater body 1 is fixedly connected with a liquid level sensor 11, the liquid level sensor 11 is used for detecting the liquid level inside the electric water heater body 1 through the arrangement of the electromagnetic safety valve 8, then the liquid level sensor 11 transmits a liquid level signal to the controller 5, the controller 5 is used for controlling the electromagnetic safety valve 8 to close the cold water inlet pipe 6, the damage of the, the right side of the temperature controller 12 is fixedly connected with the left side of the power cord 2, the left side of the temperature controller 12 is fixedly connected with an electric heating element 13, the electric heating element 13 is positioned in an inner cavity of the electric water heater body 1, the top of the electric water heater body 1 is fixedly connected with an exhaust pipe 14, the top end of the exhaust pipe 14 is fixedly connected with a pressure gauge 15, two sides of the exhaust pipe 14 are fixedly connected with a manual pressure relief valve 16 and an automatic pressure relief valve 17, the exhaust pipe 14 is arranged at the top of the electric water heater body 1, the pressure gauge 15 is used for detecting the pressure of gas in the electric water heater body 1, when the pressure of the gas in the electric water heater body 1 is overlarge, the manual pressure relief valve 16 can be manually opened for pressure relief and exhaust, meanwhile, the piston 172 and the valve cap 173, automatic relief valve 17's inside is provided with valve mouth 171, and valve mouth 171's top is provided with piston 172, and the top fixedly connected with bonnet 173 of piston 172, bonnet 173 place with automatic relief valve 17's top, automatic relief valve 17's inside fixedly connected with fixed block 174, the top fixedly connected with pressure spring 175 of fixed block 174, pressure spring 175's top and bonnet 173's bottom fixed connection together.
To sum up, this electric water heater intelligence overvoltage protector, during the use, protect overvoltage protector 4 through sealed safety cover 3, avoid overvoltage protector 4's inside short circuit of intaking, when the inside water injection of electric water heater body 1, detect the inside liquid level of electric water heater body 1 through level sensor 11, then level sensor 11 transmits the liquid level signal for controller 5, utilize controller 5 control electromagnetism relief valve 8 to close cold water inlet tube 6, when the inside gas pressure of electric water heater body 1 is too big, manually open manual relief valve 16 and carry out the exhaust pressure release, or utilize atmospheric pressure to jack up piston 172 and valve cap 173 upwards, make automatic relief valve 17 automatic exhaust, can.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides an electric water heater intelligence overvoltage protector, includes electric water heater body (1), its characterized in that: the right side of the electric water heater body (1) is fixedly connected with a power line (2), the middle part of the power line (2) is provided with a sealing protection cover (3), the inside of the sealing protection cover (3) is fixedly provided with an overvoltage protector (4), the sealing protection cover (3) comprises a lower protection cover (31) and an upper protection cover (32), the outside of the lower protection cover (31) is provided with a sealing groove (311), the bottom of the lower protection cover (31) is fixedly connected with a lower sealing element (312), the inside of the lower sealing element (312) is provided with a sealing rubber plug (313), the middle part of the upper protection cover (32) is provided with an operation window (321), the outside of the upper protection cover (32) is fixedly connected with a sealing strip (322), the bottom of the upper protection cover (32) is fixedly connected with an upper sealing element (323), and the bottom of the electric, the bottom fixedly connected with cold water inlet tube (6) of controller (5), the outside fixedly connected with manual relief valve (7) of cold water inlet tube (6), the top of manual relief valve (7) is provided with electromagnetic safety valve (8), the bottom fixedly connected with level sensor (11) of electric water heater body (1) inner chamber, the top fixedly connected with blast pipe (14) of electric water heater body (1), the top fixedly connected with manometer (15) of blast pipe (14), the both sides fixedly connected with manual relief valve (16) and automatic relief valve (17) of blast pipe (14).
2. The intelligent overvoltage protection device of the electric water heater according to claim 1, wherein: the lower protective cover (31) and the upper protective cover (32) are matched with each other, the sealing strip (322) is clamped in the sealing groove (311), and the upper sealing element (323) corresponds to the lower sealing element (312) and is clamped outside the sealing rubber plug (313).
3. The intelligent overvoltage protection device of the electric water heater according to claim 1, wherein: the sealing rubber plug (313) is movably sleeved outside the power line (2), the sealing rubber plug (313) is made of rubber materials, and the sealing rubber plug (313) is in interference fit with the lower sealing element (312).
4. The intelligent overvoltage protection device of the electric water heater according to claim 1, wherein: the front of overvoltage protector (4) is provided with button switch (41), overvoltage protector (4) are corresponding with operation window (321), operation window (321) are the preparation of transparent soft plastics material, operation window (321) link together with last protection casing (32) adoption plastics welded mode.
5. The intelligent overvoltage protection device of the electric water heater according to claim 1, wherein: the electric water heater is characterized in that a temperature controller (12) is arranged in the electric water heater body (1), the right side of the temperature controller (12) is fixedly connected with the left side of the power line (2), an electric heating element (13) is fixedly connected to the left side of the temperature controller (12), and the electric heating element (13) is located in an inner cavity of the electric water heater body (1).
6. The intelligent overvoltage protection device of the electric water heater according to claim 1, wherein: the controller (5) is respectively and electrically connected with the electromagnetic safety valve (8), the liquid level sensor (11) and the temperature controller (12), and a display and a control button are arranged on the front face of the controller (5).
7. The intelligent overvoltage protection device of the electric water heater according to claim 1, wherein: the bottom fixedly connected with hot water outlet pipe (9) of electric water heater body (1), the bottom of hot water outlet pipe (9) is provided with mixing valve (10), the right side of mixing valve (10) is connected with the left side of cold water inlet pipe (6).
8. The intelligent overvoltage protection device of the electric water heater according to claim 1, wherein: the inside of automatic relief valve (17) is provided with valve mouth (171), the top of valve mouth (171) is provided with piston (172), top fixedly connected with valve cap (173) of piston (172), top (173) place with automatic relief valve (17), the inside fixedly connected with fixed block (174) of automatic relief valve (17), the top fixedly connected with pressure spring (175) of fixed block (174), the top of pressure spring (175) is in the same place with the bottom fixed connection of valve cap (173).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011054323.0A CN112178945A (en) | 2020-09-29 | 2020-09-29 | Intelligent overvoltage protection device of electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011054323.0A CN112178945A (en) | 2020-09-29 | 2020-09-29 | Intelligent overvoltage protection device of electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112178945A true CN112178945A (en) | 2021-01-05 |
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ID=73946997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011054323.0A Pending CN112178945A (en) | 2020-09-29 | 2020-09-29 | Intelligent overvoltage protection device of electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112178945A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117922989A (en) * | 2024-03-21 | 2024-04-26 | 青岛市动物疫病预防控制中心 | Device for taking and storing freeze-dried microsphere reagent for Brucella detection |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1338596A (en) * | 2001-08-30 | 2002-03-06 | 王再芳 | Split-type low-voltage quick-acting water heater |
| CN101441001A (en) * | 2008-12-17 | 2009-05-27 | 中国建筑东北设计研究院有限公司 | Electrical shock-proof protection tank of electric water heater |
| CN105299909A (en) * | 2015-10-19 | 2016-02-03 | 黄石市民生太阳能科技有限公司 | Water heater |
| CN205037584U (en) * | 2015-09-29 | 2016-02-17 | 王德成 | Boiler with automatically controlled relief valve |
-
2020
- 2020-09-29 CN CN202011054323.0A patent/CN112178945A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1338596A (en) * | 2001-08-30 | 2002-03-06 | 王再芳 | Split-type low-voltage quick-acting water heater |
| CN101441001A (en) * | 2008-12-17 | 2009-05-27 | 中国建筑东北设计研究院有限公司 | Electrical shock-proof protection tank of electric water heater |
| CN205037584U (en) * | 2015-09-29 | 2016-02-17 | 王德成 | Boiler with automatically controlled relief valve |
| CN105299909A (en) * | 2015-10-19 | 2016-02-03 | 黄石市民生太阳能科技有限公司 | Water heater |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117922989A (en) * | 2024-03-21 | 2024-04-26 | 青岛市动物疫病预防控制中心 | Device for taking and storing freeze-dried microsphere reagent for Brucella detection |
| CN117922989B (en) * | 2024-03-21 | 2024-05-28 | 青岛市动物疫病预防控制中心 | Device for taking and storing freeze-dried microsphere reagent for Brucella detection |
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Application publication date: 20210105 |