CN2499750Y - Shock-proof type electric water heater - Google Patents
Shock-proof type electric water heater Download PDFInfo
- Publication number
- CN2499750Y CN2499750Y CN01262062.9U CN01262062U CN2499750Y CN 2499750 Y CN2499750 Y CN 2499750Y CN 01262062 U CN01262062 U CN 01262062U CN 2499750 Y CN2499750 Y CN 2499750Y
- Authority
- CN
- China
- Prior art keywords
- water
- electric
- pipe
- outlet pipe
- utility
- 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.)
- Ceased
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Landscapes
- Control Of Resistance Heating (AREA)
- Resistance Heating (AREA)
Abstract
The utility model provides an anti-electric shock electric water heater, comprising an electric heater, a heating inner liner, a water inlet pipe, a water outlet pipe, a shell as well as an anti-creep insulation device. The utility model is characterized in that the anti-creep insulation device is composed of two insulting pipes respectively connected with the water inlet pipe and the water outlet pipe. The insulting pipe length is of 53 times bigger than the radius square of the inner hole. The two insulting pipes are respectively connected with the water pipe and the water outlet pipe exposing out of the shell. The utility model adopts an anti-creep insulation device with simple and reliable structure and lower cost instead of the leak-protective switch type as well as the leak alarm device, which thoroughly avoids the electric shock accident and supplies the user safe security.
Description
Technical field
The utility model belongs to a kind of electric heater, is a kind of protection against electric shock type electric heater specifically.
Background technology
The most frequently used anticreep mode of existing electric heater mainly contains two kinds, and a kind of is to adopt leakage switch, when leakage current surpasses setting, can cut off the electricity supply automatically, guarantees that electric heater is safe and reliable.Another is that the electric leakage automatic detection device is installed on electric heater, when leakage current surpasses set quota, promptly reports to the police automatically, reminds the user to turn off power supply, to guarantee end user's life security.But above these the two kinds modes of protecting all make the user stronger to the earth leakage protective device dependence, just in case leakage switch or automatically the detection alarm device damage or leak electricity when malfunctioning, will take place, even threaten user's life security.Therefore, what the user was concerned about the most to electric heater is exactly safety problem, and this also is the problem that manufacturer payes attention to the most.In order to guarantee the safety in utilization of electric heater, manufacturer has carried out number of research projects on the Insulation Problems of electricity and water, and has done many improvement, has increased the cost of electric heater greatly, and insulant in case damage still can be leaked electricity electric shock accidents takes place.Therefore, the electric leakage problem of electric heater fails to find earth leakage protective solution a kind of both simple and reliable and that cost is low all the time.
Summary of the invention
The utility model is to provide a kind of protection against electric shock type electric heater at the deficiencies in the prior art; earth leakage circuit-breaker formula and leakage alarm have been removed from; and adopt anticreep spacer assembly a kind of both simple and reliable and that cost is low, and thoroughly avoid electric shock accidents to take place, provide safety guarantee to the user.
The technical solution of the utility model is: a kind of protection against electric shock type electric heater, comprise electric heater, heating inner bag, water inlet pipe, outlet pipe, shell and anticreep spacer assembly, it is characterized in that described anticreep spacer assembly is for being connected on two insulation tubes compositions on water inlet pipe, the outlet pipe respectively.
The length of described insulation tube is 53 times greater than the endoporus radius squared.
Described two insulation tubes are connected on respectively on the water inlet pipe that exposes shell, the outlet pipe.
Advantage of the present utility model and good effect analysis are described below:
According to concrete test and with reference to GB13955-92 (earth leakage protective device installation and operation) regulation, the electric heater leakage current is decided to be 10mA, can guarantee user's safety.When the heating inner bag electric leakage takes place or the direct short circuit of 220V power supply that uses in heated water, dielectric resistance R=220V/10mA=22 * 10 of running water
3Ω.
Because of the electricalresistivity of running water equals 1300 Ω cm, be L if get the length of insulation tube, pore radius is r in the insulation tube, and the dielectric resistance of water is R, and resistivity of water is ρ, then:
L＝R·πr
2/ρ＝22×10
3×3.14÷1300≈53r
2
So, when the length L of insulation tube greater than 53 times of endoporus radius r square, i.e. L＞53r
2, just can guarantee to do anticreep isolation with the water resistance of running water.
1, the utility model selects to be connected on respectively the anticreep spacer assembly of two insulation tube conducts on water inlet pipe, the outlet pipe, and the water resistance that adopts running water in the use is made the slider of electric leakage spacer assembly, no matter which type of electric leakage situation partly takes place in electric heater, perhaps, the various leakies that electric heater circuit or housing take place, this anticreep spacer assembly can both be guaranteed user's safety, even the direct short circuit of 220V power supply of heater is in heated water, any danger can not take place less than 10mA in an electric current over the ground that flows out water from insulation tube yet.
2, because after having adopted these quarantine measures, electric heater has saved attachment devices such as earth leakage circuit-breaker or alarm, has improved security reliability, simple in structure, production cost is lower.
3, because of insulation tube length L＞53r
2, general r is about 5mm, and L only needs several centimetres or tens centimetres and gets final product, and two insulation tubes can be connected on respectively on the water inlet pipe that exposes shell, the outlet pipe.Install simply, maintenance is changed convenient, and cost is low, uses reliably, is specially adapted to the transformation of existing electric heater.
Description of drawings
Fig. 1 is electric heater insulation tube mounting structure figure of the present utility model.
The specific embodiment
Referring to Fig. 1, the water inlet pipe 3 that picks out from electric heater heating inner bag water inlet stretches out shell 1 termination insulation tube 5, the water inlet pipe 2 that picks out from electric heater heating inner bag delivery port stretches out shell 1 termination insulation tube 4, insulation tube 4 and 5 adopts plastics (as the polytetrafluoroethylplastic plastic) pipe of high temperature high voltage resistant to make, the internal diameter of its pipe is got 0.5 centimetre, the length that calculates insulation tube 4 or 5 according to the proportionate relationship of pipe range and bore should be greater than 1.32 centimetres, the length of insulation tube 4 and 5 is got 3-5 centimetre, can constitute the reliable anticreep spacer assembly of water heater.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01262062.9U CN2499750Y (en) | 2001-09-29 | 2001-09-29 | Shock-proof type electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01262062.9U CN2499750Y (en) | 2001-09-29 | 2001-09-29 | Shock-proof type electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2499750Y true CN2499750Y (en) | 2002-07-10 |
Family
ID=33669869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01262062.9U Ceased CN2499750Y (en) | 2001-09-29 | 2001-09-29 | Shock-proof type electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2499750Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322692A (en) * | 2013-07-08 | 2013-09-25 | 淮海工学院 | Passive external electric-insulation wall |
| CN110486932A (en) * | 2019-07-17 | 2019-11-22 | 青岛海尔空调器有限总公司 | Water heater and method and device for controlling water heater |
-
2001
- 2001-09-29 CN CN01262062.9U patent/CN2499750Y/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322692A (en) * | 2013-07-08 | 2013-09-25 | 淮海工学院 | Passive external electric-insulation wall |
| CN110486932A (en) * | 2019-07-17 | 2019-11-22 | 青岛海尔空调器有限总公司 | Water heater and method and device for controlling water heater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101275779B (en) | Electricity-leakage-proof water heater | |
| CN201028758Y (en) | A leak-proof electric water heater | |
| CN2499750Y (en) | Shock-proof type electric water heater | |
| CN108167659A (en) | A kind of floor heating pipeline liquid leakage detection device and its detection method | |
| CN101021362A (en) | The setting method of electric water heater pylon analog 'ground line' and reverse electricity leakage sensor | |
| CN201045535Y (en) | Bare electric instant heating water heater | |
| CN201032285Y (en) | Electric water heater with live wire alarm protection device | |
| CN1116561C (en) | Electric shock-proof electric water heater | |
| CN202469067U (en) | Intelligent electric-proof mixing valve | |
| CN201028805Y (en) | Damping isolation signal pickup assembly used for electric water heater | |
| CN201135389Y (en) | Electrothermal shower water tap | |
| CN201354463Y (en) | Ultra-mute anti-freezing intelligent positive pressure superposition water supply device | |
| CN2289174Y (en) | Leakage-proof isolation device for electric water heater | |
| CN110071399A (en) | A kind of intelligent socket with lightning protection function | |
| CN2519196Y (en) | Electric shock-proof electric water heater | |
| CN2519190Y (en) | Built-in insulating tube electric shock prevention type electric water heater | |
| CN210294424U (en) | Capacitor fault detection device | |
| CN2339935Y (en) | Electric water-heater | |
| CN208635314U (en) | One kind has from electricity preventing function gas heater | |
| CN201159527Y (en) | Safety low-voltage electric water heater | |
| CN221684815U (en) | Fluid leakage protection device | |
| CN2434600Y (en) | Water storage electrothermal water heater | |
| CN2864466Y (en) | Anti-leakage instant electric water heater | |
| CN2238993Y (en) | Anti-creeping safety quick miniature water heater | |
| CN210107772U (en) | Electric shock preventing device of electric water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20051122 Decision number of declaring invalidation: 7865 |