CN105546809A - Electric water heater - Google Patents
Electric water heater Download PDFInfo
- Publication number
- CN105546809A CN105546809A CN201610064111.8A CN201610064111A CN105546809A CN 105546809 A CN105546809 A CN 105546809A CN 201610064111 A CN201610064111 A CN 201610064111A CN 105546809 A CN105546809 A CN 105546809A
- Authority
- CN
- China
- Prior art keywords
- hanging feet
- insulating part
- fixing hole
- shell
- hole
- Prior art date
- 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.)
- Pending
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- 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
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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
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)
- Cookers (AREA)
Abstract
The invention discloses an electric water heater which comprises a housing, a liner, a water inlet pipe, a water outlet pipe, a heating component and a control component, wherein electricity prevention walls are arranged on the water inlet pipe and the water outlet pipe; the liner is insulated from the housing; an electrical cover or an electrical box is arranged on the housing, and is internally provided with a mounting cavity; the control component comprises a circuit board; the circuit board and the electricity prevention walls are positioned in the mounting cavity; and the mounting cavity is insulated from the housing. Compared with the prior art, the Class II electric water heater has the following advantages that because the liner is insulated from the housing, during specific application, even if the heating component in the liner leaks electricity, the housing can not be electrified, and a using process is safer and more reliable.
Description
Technical field
The present invention relates to a kind of electric heater.
Background technology
Electrothermal tube direct heating type electric water heater seen is in the market made up of electrothermal tube, seal, inner bag, heat-insulation layer and shell etc. and electric control system, only has one deck magnesia powder insulating barrier as the insulation between heating wire and metal shell in the metal shell of its electrothermal tube adopted.In order to avoid insulation layer fails causes the charged generation causing electric leakage casualty accident of metal shell; must by metal shell ground connection to ensure when insulation layer fails metal shell is charged; by earth connection, electric current is drained to the earth release, protection human body is not by electric leakage injury.The electric heater of this employing ground protection measure is exactly the electric heater of I appliances.In fact, earth connection can make earth resistance become large due to a variety of causes, and as corrosion, aging, connection is loosening.Once earth resistance becomes large; when occurring leaking electricity even wiring error: as in phase line misconnection to ground wire time; not only do not have ground protection effect, also the water-band electricity in electric heater can be made to cause electric shock accidents by the metal shell of the electrothermal tube of ground connection on the contrary, consequence will be very serious.
In fact, in national security appliance standard, giving the correct method about processing problem with grounding already, using II class electric heater exactly.And II class electric heater there is no earth connection, electric heater electric shock-prevention safety can be accomplished ultimate attainment.But because II class electric heater requires to have special double insulating structure and proof voltage higher than security features such as I electric appliances more than 2 times, leakage current requirement are less, these require to cause the technological difficulties of the electric water heater of the II electric appliances technical requirement that electric heater on Vehicles Collected from Market does not almost have safer can to meet the world, domestic safety standard specifies.
I appliances: its protection against electric shock not only relies on basic insulation but also comprises the utensil of an additional safety precaution measure.Its safeguard procedures are connected on the ground guard conductor in facility permanent wiring by accessible current-carrying part, and to make just in case basic insulation lost efficacy, accessible conductive component can not be charged.
II appliances: its protection against electric shock not only relies on basic insulation, and the utensil that the additional safety precaution measure as double insulation or reinforced insulation is provided.This appliances does not have protective grounding or relies on the measure of mounting condition.
Summary of the invention
Technical problem to be solved by this invention is the deficiency overcoming above-mentioned prior art, provides the electric heater that a kind of structure is simple, easy to assembly, safe and reliable.
The main technical schemes adopted according to electric heater provided by the invention is: comprise shell, inner bag, water inlet pipe, outlet pipe, heating component and Control Component, described water inlet pipe and outlet pipe are equipped with anti-electricity wall, insulate between described inner bag and described shell and isolate, described shell is provided with electrical equipment lid or electrical appliance kit, installation cavity is provided with in described electrical equipment lid or electrical appliance kit, described Control Component comprises circuit board, described circuit board and anti-electricity wall are all positioned at described installation cavity, insulate and isolate between described installation cavity and described shell.
The electric heater that inventing provides also adopts following attached technical scheme:
The outer wall of described shell is provided with proof and electric leakage-proof safety and pastes, and described installation cavity pastes relative with described proof and electric leakage-proof safety.
Also comprise connection box and wire-passing tube, described connection box is provided with edge, described shell is provided with cable-through hole, described cable-through hole is relative with described installation cavity, described connection box inserts described cable-through hole, described edge card is by described cable-through hole periphery, and described wire-passing tube is between described shell and described inner bag; Described connection box is provided with cabling mouth, and described cabling mouth is connected with described wire-passing tube.
Described proof and electric leakage-proof safety pastes identical with the notch shape of described installation cavity.
The port of described electrical equipment lid compresses the edge of described proof and electric leakage-proof safety subsides.
Described proof and electric leakage-proof safety pastes and be provided with tack coat between described shell.
Described proof and electric leakage-proof safety sticks and is provided with cable hole, and described cable hole is relative with described cable-through hole.
Described proof and electric leakage-proof safety sticks and is also provided with into water pore and water outlet pore.
The surrounding of described cable hole, water inlet pore and water outlet pore is equipped with double-sided tape.
Also comprise the wire connecting heating component and Control Component, one end of described wire is connected with heating component, the other end of described wire is connected with described circuit board through described wire-passing tube, described connection box successively, and the wire in described wire-passing tube and the distance between described outer casing inner wall are 3mm-15mm; Wire in described installation cavity and the distance between described circuit board and described outer shell outer wall are 3mm-15mm; Wire in described connection box and the distance between described cable-through hole inwall are 3mm-15mm.
The outer wall of described shell is provided with outer hanging feet, and the outer wall of described inner bag is provided with interior hanging feet, and described outer hanging feet is all connected with described shell with described interior hanging feet, and described shell and all insulating between described outer hanging feet and described interior hanging feet is isolated.
Also comprise hanging feet bolt and hanging feet nut, described shell is provided with installing hole, described outer hanging feet is provided with the first fixing hole, described interior hanging feet is provided with the second fixing hole, with described hanging feet nut screw connection after the first fixing hole, installing hole and described second fixing hole described in described hanging feet screw bolt passes; The first insulating part is provided with between described first fixing hole and described installing hole, the second insulating part is provided with between described second fixing hole and described installing hole, the 3rd insulating part is provided with between described second fixing hole and described hanging feet nut, the 4th insulating part is provided with between the outer wall of described hanging feet bolt and the inwall of described second fixing hole, be formed with gap between the outer wall of described hanging feet bolt and the inwall of described installing hole, described hanging feet nut be coated with the 5th insulating part.
Described 5th insulating part is connected with described 3rd insulating part.
The 6th insulating part is provided with between the outer wall of described hanging feet bolt and the inwall of described installing hole.
Described first insulating part is insulating washer, and described insulating washer is provided with the first insulation fixing hole, and the radius of described first insulation fixing hole is less than the radius of described installing hole.
Described second insulating part is provided with the second insulation fixing hole, described 3rd insulating part is provided with the 3rd insulation fixing hole, described 4th insulating part is the annular boss being located at the 3rd insulation fixing hole place, described annular boss inserts described second insulation fixing hole, or the end of described annular boss leans the periphery of described second insulation fixing hole.
One end of described second insulating part is connected with one end of described 3rd insulating part, the other end of described second insulating part and the other end snap-fit engagement of described 3rd insulating part.
Described second insulating part, described 3rd insulating part and described 4th insulating part are formed in one structure.
According to electric heater provided by the invention compared with prior art tool have the following advantages: first, the present invention passes through insulation isolation between inner bag and shell, when specifically using, even if the heating component electric leakage in inner bag, shell also can not be charged, and use procedure is more safe and reliable; Secondly, the installation cavity in electrical equipment lid and insulating between shell is isolated; During concrete use, even if the Control Component electric leakage in installation cavity, shell still can not be charged, and the security of use procedure is protected again; Achieve II class electric heater, compared with prior art the present invention is without the need to arranging earth connection, can not be charged because earth connection breaks down in use procedure, causes that casing of electric water heater is charged causes electric shock accidents.
Accompanying drawing explanation
Fig. 1 is side-looking of the present invention and the structure chart cut open by electrical equipment lid.
Fig. 2 is the structure chart of the present invention when opening electrical equipment lid.
Fig. 3 is structure chart of the present invention.
Fig. 4 is the sectional view of A-A in Fig. 3.
Fig. 5 is the enlarged drawing of B in Fig. 4.
Detailed description of the invention
See Fig. 1 to Fig. 4, according to electric heater embodiment provided by the invention, comprise shell 1, inner bag 2, water inlet pipe 21, outlet pipe 22, heating component and Control Component, described water inlet pipe 21 and outlet pipe 22 are equipped with anti-electricity wall 10, insulate between described inner bag 2 and described shell 1 and isolate, described shell 1 is provided with electrical equipment lid 11 or electrical appliance kit, installation cavity 111 is provided with in described electrical equipment lid 11 or electrical appliance kit, described Control Component comprises circuit board 3, described circuit board 3 and anti-electricity wall 10 are all positioned at described installation cavity 111, insulate between described installation cavity 111 and described shell 1 and isolate.The present embodiment preferably arranges electrical equipment lid 11 on shell 1.First, the present invention is by isolating insulating between inner bag 2 and shell 1, and when specifically using, even if the heating component electric leakage in inner bag 2, shell 1 also can not be charged, and use procedure is more safe and reliable; Secondly, the installation cavity 111 in electrical equipment lid 11 and insulate between shell 1 is isolated, and when specifically using, even if the Control Component in installation cavity 111 leaks electricity, shell 1 still can not be charged, and the security of use procedure is protected again; Achieve II class electric heater, compared with prior art the present invention is without the need to arranging earth connection, can not be charged because earth connection breaks down in use procedure, causes that casing of electric water heater 1 is charged causes electric shock accidents.
See Fig. 1 to Fig. 2, according to invention the above embodiments, between described shell 1 and described inner bag 2, be provided with foaming heat insulation insulating materials and insulating part.The outer wall of described shell 1 is provided with proof and electric leakage-proof safety and pastes 4, and described installation cavity 111 and described proof and electric leakage-proof safety paste 4 relative.Described proof and electric leakage-proof safety pastes between 4 and described shell 1 and is provided with tack coat.Tack coat in the present embodiment is double faced adhesive tape.Proof and electric leakage-proof safety paste 4 structures simple, with shell 1 is easy to connect, production cost is low.When arranging electrical appliance kit on shell 1, electrical appliance kit comprises lower casing and upper cover, and lower casing is equivalent to the electrical equipment lid 11 in the present embodiment, and the proof and electric leakage-proof safety that upper cover is equivalent in the present embodiment pastes 4, and can realizing equally insulate between installation cavity 111 and shell 1 isolates.
See Fig. 2, according to invention the above embodiments, also comprise connection box 51 and wire-passing tube 52, described connection box 51 is provided with edge, described shell 1 is provided with cable-through hole, and described cable-through hole is relative with described installation cavity 111, and described connection box 51 inserts described cable-through hole, described edge card is by described cable-through hole periphery, and described wire-passing tube 52 is between described shell 1 and described inner bag 2; Described connection box 51 is provided with cabling mouth, and described cabling mouth is connected with described wire-passing tube 52.The setting of connection box 51 achieves the insulation isolation between wire and cable-through hole, and the insulation that the setting of wire-passing tube 52 strengthens between wire and shell 1 inwall is isolated.Described proof and electric leakage-proof safety pastes on 4 and is also provided with into water pore and water outlet pore.Described proof and electric leakage-proof safety pastes 4 and is provided with cable hole, and described cable hole is relative with described cable-through hole.
See Fig. 1 to Fig. 2, according to invention the above embodiments, described proof and electric leakage-proof safety subsides 4 are identical with the notch shape of described installation cavity 111.The port of described electrical equipment lid 11 compresses the edge that described proof and electric leakage-proof safety pastes 4.The surrounding of described cable hole, water inlet pore and water outlet pore is equipped with double-sided tape.Adopting aforesaid way to be pasted by proof and electric leakage-proof safety 4 is fixed on the outer wall of shell 1, fixed, easy to assembly, production cost is low.
See Fig. 2, according to invention the above embodiments, also comprise the wire (not shown) connecting heating component and Control Component, one end of described wire is connected with heating component, the other end of described wire is connected with described circuit board 3 through described wire-passing tube 52, described connection box 51 successively
Wire in described wire-passing tube 52 and the distance between the inwall of described shell 1 are 3mm-15mm, and the present embodiment is preferably 9mm; Wire in described installation cavity 111 and the distance between described circuit board 3 and described shell 1 outer wall are 3mm-15mm, the present embodiment is preferably 9mm, this distance coordinates the proof and electric leakage-proof safety between circuit board 3 and shell 1 to paste 4, substantially increases the breakdown voltage making shell 1 charged because circuit board 3 is breakdown; Wire in described connection box 51 and the distance between described cable-through hole inwall are 3mm-15mm, and the present embodiment is preferably 9mm.Distance between wire and cable-through hole inwall, coordinates connection box 51 to substantially increase the breakdown voltage making cable-through hole charged because wire is breakdown.
See Fig. 1 to Fig. 5, according to invention the above embodiments, the outer wall of described shell 1 is provided with outer hanging feet 12, the outer wall of described inner bag 2 is provided with interior hanging feet 23, described outer hanging feet 12 is all connected with described shell 1 with described interior hanging feet 23, and described shell 1 and all insulating between described outer hanging feet 12 and described interior hanging feet 23 is isolated.Prevent interior hanging feet 23 charged and cause shell 1 and outer hanging feet 12 charged, again ensured the security of use procedure of the present invention.
See Fig. 5, according to invention the above embodiments, also comprise hanging feet bolt 61 and hanging feet nut 62, described shell 1 is provided with installing hole, described outer hanging feet 12 is provided with the first fixing hole, described interior hanging feet 23 is provided with the second fixing hole, and described hanging feet bolt 61 coordinates with described hanging feet nut 62 through after described first fixing hole, installing hole and described second fixing hole successively; The first insulating part 7 is provided with between described first fixing hole and described installing hole, the second insulating part 81 is provided with between described second fixing hole and described installing hole, the 3rd insulating part 82 is provided with between described second fixing hole and described hanging feet nut 62, the 4th insulating part 83 is provided with between the outer wall of described hanging feet bolt 61 and the inwall of described second fixing hole, be formed with gap between the outer wall of described hanging feet bolt 61 and the inwall of described installing hole, described hanging feet nut 62 be coated with the 5th insulating part 9.Described 5th insulating part 9 is connected with described 3rd insulating part 82.Adopt the insulation of said structure realization between outer hanging feet 12, shell 1 and interior hanging feet 23, structure is simple, easy to assembly, production cost is low.Gap is formed between the outer wall of described hanging feet bolt 61 and the inwall of described installing hole, realize the insulation between installing hole and hanging feet bolt 61, can also adopt and be provided with the 6th insulating part between the outer wall and the inwall of described installing hole of described hanging feet bolt 61, realize the insulation between installing hole and hanging feet bolt 61.
See Fig. 5, according to invention the above embodiments, described first insulating part 7 is insulating washer, and described insulating washer is provided with the first insulation fixing hole, and the radius of described first insulation fixing hole is less than the radius of described installing hole.Adopt insulating washer as the first insulating part 7, not only structure is simple, easy to process, production cost is low, and it is easy to assembly, when the radius of the first insulation fixing hole is less than the radius of installing hole, will insulate with installing hole through the first hanging feet bolt 61 insulating fixing hole and isolate, and prevent the charged shell 1 that causes of hanging feet bolt 61 charged.
See Fig. 5, according to invention the above embodiments, described second insulating part 81 is provided with the second insulation fixing hole, described 3rd insulating part 82 is provided with the 3rd insulation fixing hole, described 4th insulating part 83 is for being located at the annular boss at the 3rd insulation fixing hole place, described annular boss inserts described second insulation fixing hole, or the end of described annular boss leans the periphery of described second insulation fixing hole.The end of the annular boss in the present embodiment leans the periphery of the second insulation fixing hole, and adopt said structure to realize interior insulation between hanging feet 23, shell 1 and hanging feet bolt 61, structure is simple, parts are few, easy to assembly, reliability is high.
See Fig. 5, according to invention the above embodiments, one end of described second insulating part 81 is connected with one end of described 3rd insulating part 82, the other end of described second insulating part 81 and the other end snap-fit engagement of described 3rd insulating part 82.Adopt this kind of structure, greatly facilitate the assembling of the second insulating part 81, the 3rd insulating part 82 and the 4th insulating part 83, during assembling, 4th insulating part 83 is inserted the second fixing hole on interior hanging feet 23, by the second insulating part 81 and the 3rd insulating part 82 clamping, interior hanging feet 23 is clamped between the second insulating part 81 and the 3rd insulating part 82.
See Fig. 5, according to invention the above embodiments, described second insulating part 81, described 3rd insulating part 82 and described 4th insulating part 83 are formed in one structure.Easy to process, production cost is low.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can change these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalents thereof.
Claims (10)
1. an electric heater, comprise shell, inner bag, water inlet pipe, outlet pipe, heating component and Control Component, described water inlet pipe and outlet pipe are equipped with anti-electricity wall, it is characterized in that: insulate between described inner bag and described shell and isolate, described shell is provided with electrical equipment lid or electrical appliance kit, and be provided with installation cavity in described electrical equipment lid or electrical appliance kit, described Control Component comprises circuit board, described circuit board and anti-electricity wall are all positioned at described installation cavity, insulate and isolate between described installation cavity and described shell.
2. electric heater according to claim 1, is characterized in that: the outer wall of described shell is provided with proof and electric leakage-proof safety and pastes, and described installation cavity pastes relative with described proof and electric leakage-proof safety.
3. electric heater according to claim 2, is characterized in that: the port of described electrical equipment lid compresses the edge of described proof and electric leakage-proof safety subsides.
4. the electric heater according to Claims 2 or 3, it is characterized in that: also comprise connection box and wire-passing tube, described connection box is provided with edge, described shell is provided with cable-through hole, described cable-through hole is relative with described installation cavity, described connection box inserts described cable-through hole, and described edge card is by described cable-through hole periphery, and described wire-passing tube is between described shell and described inner bag; Described connection box is provided with cabling mouth, and described cabling mouth is connected with described wire-passing tube.
5. electric heater according to claim 4, it is characterized in that: also comprise the wire connecting heating component and Control Component, one end of described wire is connected with heating component, the other end of described wire is connected with described circuit board through described wire-passing tube, described connection box successively, and the wire in described wire-passing tube and the distance between described outer casing inner wall are 3mm-15mm; Wire in described installation cavity and the distance between described circuit board and described outer shell outer wall are 3mm-15mm; Wire in described connection box and the distance between described cable-through hole inwall are 3mm-15mm.
6. the electric heater according to claim 1-5 any one, it is characterized in that: the outer wall of described shell is provided with outer hanging feet, the outer wall of described inner bag is provided with interior hanging feet, described outer hanging feet is all connected with described shell with described interior hanging feet, and described shell and all insulating between described outer hanging feet and described interior hanging feet is isolated.
7. electric heater according to claim 6, it is characterized in that: also comprise hanging feet bolt and hanging feet nut, described shell is provided with installing hole, described outer hanging feet is provided with the first fixing hole, described interior hanging feet is provided with the second fixing hole, with described hanging feet nut screw connection after the first fixing hole, installing hole and described second fixing hole described in described hanging feet screw bolt passes; The first insulating part is provided with between described first fixing hole and described installing hole, the second insulating part is provided with between described second fixing hole and described installing hole, the 3rd insulating part is provided with between described second fixing hole and described hanging feet nut, the 4th insulating part is provided with between the outer wall of described hanging feet bolt and the inwall of described second fixing hole, be formed with gap between the outer wall of described hanging feet bolt and the inwall of described installing hole, described hanging feet nut be coated with the 5th insulating part.
8. electric heater according to claim 7, is characterized in that: described first insulating part is insulating washer, and described insulating washer is provided with the first insulation fixing hole, and the radius of described first insulation fixing hole is less than the radius of described installing hole.
9. electric heater according to claim 7, it is characterized in that: described second insulating part is provided with the second insulation fixing hole, described 3rd insulating part is provided with the 3rd insulation fixing hole, described 4th insulating part is the annular boss being located at the 3rd insulation fixing hole place, and described annular boss inserts the periphery that the described second end of insulating fixing hole or described annular boss leans described second insulation fixing hole.
10. electric heater according to claim 9, is characterized in that: one end of described second insulating part is connected with one end of described 3rd insulating part, the other end of described second insulating part and the other end snap-fit engagement of described 3rd insulating part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610064111.8A CN105546809A (en) | 2016-01-29 | 2016-01-29 | Electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610064111.8A CN105546809A (en) | 2016-01-29 | 2016-01-29 | Electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105546809A true CN105546809A (en) | 2016-05-04 |
Family
ID=55826189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610064111.8A Pending CN105546809A (en) | 2016-01-29 | 2016-01-29 | Electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105546809A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112218393A (en) * | 2020-09-07 | 2021-01-12 | 佛山市青见电器有限公司 | Anticreep heating device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5081696A (en) * | 1991-01-25 | 1992-01-14 | Bradford-White Corporation | Electrically grounded water heater |
| WO2003052329A1 (en) * | 2001-12-19 | 2003-06-26 | Haier Group Corporation | An electricshock-prevention type electric water heater |
| CN2736694Y (en) * | 2003-11-17 | 2005-10-26 | 浙江康泉电器有限公司 | High safety electric water heater |
| CN201133717Y (en) * | 2007-11-28 | 2008-10-15 | 周剑冰 | Electrical water heater assembled control box |
| CN201159525Y (en) * | 2007-11-28 | 2008-12-03 | 何茂财 | Electric shock-proof water storage type electric water heater |
| CN202171346U (en) * | 2011-08-02 | 2012-03-21 | 珠海格力电器股份有限公司 | Insulating and heat-insulating structure |
| CN203771672U (en) * | 2014-01-20 | 2014-08-13 | 中山市华仕顿电器有限公司 | Water storage type water heater |
| CN204693843U (en) * | 2015-06-04 | 2015-10-07 | 珠海格力电器股份有限公司 | Water heater and enamel water tank electrical heating installation component |
| CN205372996U (en) * | 2016-01-29 | 2016-07-06 | 宁波帅康热水器有限公司 | Electric water heater |
-
2016
- 2016-01-29 CN CN201610064111.8A patent/CN105546809A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5081696A (en) * | 1991-01-25 | 1992-01-14 | Bradford-White Corporation | Electrically grounded water heater |
| WO2003052329A1 (en) * | 2001-12-19 | 2003-06-26 | Haier Group Corporation | An electricshock-prevention type electric water heater |
| CN2736694Y (en) * | 2003-11-17 | 2005-10-26 | 浙江康泉电器有限公司 | High safety electric water heater |
| CN201133717Y (en) * | 2007-11-28 | 2008-10-15 | 周剑冰 | Electrical water heater assembled control box |
| CN201159525Y (en) * | 2007-11-28 | 2008-12-03 | 何茂财 | Electric shock-proof water storage type electric water heater |
| CN202171346U (en) * | 2011-08-02 | 2012-03-21 | 珠海格力电器股份有限公司 | Insulating and heat-insulating structure |
| CN203771672U (en) * | 2014-01-20 | 2014-08-13 | 中山市华仕顿电器有限公司 | Water storage type water heater |
| CN204693843U (en) * | 2015-06-04 | 2015-10-07 | 珠海格力电器股份有限公司 | Water heater and enamel water tank electrical heating installation component |
| CN205372996U (en) * | 2016-01-29 | 2016-07-06 | 宁波帅康热水器有限公司 | Electric water heater |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112218393A (en) * | 2020-09-07 | 2021-01-12 | 佛山市青见电器有限公司 | Anticreep heating device |
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Application publication date: 20160504 |