CN2913945Y - Electroshock preventing device for electric water heater - Google Patents
Electroshock preventing device for electric water heater Download PDFInfo
- Publication number
- CN2913945Y CN2913945Y CN 200620072706 CN200620072706U CN2913945Y CN 2913945 Y CN2913945 Y CN 2913945Y CN 200620072706 CN200620072706 CN 200620072706 CN 200620072706 U CN200620072706 U CN 200620072706U CN 2913945 Y CN2913945 Y CN 2913945Y
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- China
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- communicated
- intake tunnel
- water
- exhalant canal
- electric shock
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Abstract
The utility model relates to an electric shock preventing device for electric water heater, which comprises at least two passages (a water inlet passage and a water outlet passage) in a formed pipe. The upper end of the water inlet passage is communicated with a water inlet, the lower end of the water inlet passage is communicated with the lower end of the water outlet passage, and the upper end of the water outlet passage is communicated with a water outlet arranged at the upper end of the formed pipe. The utility model has advantages of simplified structure, and improved electric shock preventing effect.
Description
Technical field
The utility model belongs to a kind of anti-electric shock apparatus, refers in particular to a kind of anti-electric shock apparatus that is fit to be installed in the electric heater.
Background technology
The regulation of 5.8.3 in country's GB13955-2005 " aftercurrent action protecting equipment installation and operation ": " it is 10mA that the electrical equipment that is installed in specific regions such as swimming pool, water scenery fountain, aquatic entertainment park, bathroom should be selected specified residue action current for use "; when water heater because of certain reason electric leakage took place, the electric current under this being in a safe condition can be guaranteed personal safety.For this reason, must a kind of anti-electric shock apparatus be installed at the intake-outlet place of these electric equipments.In the prior art, used electric shock preventing device structure more complicated, protection against electric shock effect instability often has influence on the normal use of this electric appliances equipment.
Summary of the invention
The purpose of this utility model is to design a kind of electric heater anti-electric shock apparatus, with simplified structure, improves the protection against electric shock effect.
According to design provided by the utility model, at least two passages are arranged in forming tube, one of them is an intake tunnel, another is an exhalant canal, the upper end of intake tunnel is communicated with water inlet, the lower end of intake tunnel is communicated with the lower end of exhalant canal, and the upper end of this exhalant canal is communicated with the delivery port that is arranged at the forming tube upper end.
Upper end in forming tube connects straight tube, there is plug lower end in forming tube, the intake tunnel cavity interior with being formed at straight tube is communicated with, connector is installed in upper end at straight tube, pre-buried outer silk inserts is arranged in the upper end of connector, in the lower end of connector pre-buried internal thread inserts is arranged, between internal thread inserts and straight tube, sealing ring is arranged.Intake tunnel and exhalant canal have two respectively.
In forming tube, the two ends up and down of intake tunnel and exhalant canal are provided with epicoele and cavity of resorption respectively, wherein epicoele is communicated with intake tunnel, cavity of resorption is communicated with intake tunnel and exhalant canal.It is skewed that delivery port is.Forming tube has two, utilizes pipeline to interconnect respectively at the two ends of two forming tubes, and two connectors are installed respectively on every forming tube.
Compared with prior art have the following advantages: compact conformation is reasonable, and simple installation, security improve greatly, the big reduction of manufacturing cost, and security, economy, reasonability three have concurrently.Guaranteeing under the prerequisite of discharge, by reducing caliber and increase the design principle of the number of vias of water, thereby guaranteeing safety requirements, and its contraction in length, thereby reasonable more economically.
Description of drawings
Fig. 1 is a structure chart of the present utility model.
Fig. 2 is the B-B view of Fig. 1.
Fig. 3 is the A-A view of Fig. 1.
Fig. 4 another kind of form of the present utility model.
Fig. 5 is another form of the present utility model.
The specific embodiment
As shown in Figure 1, 2, 3: the upper end in forming tube 6 connects straight tube 5, in the lower end of forming tube 6 plug 7 is arranged, 4 passages are arranged in forming tube 6, wherein two is intake tunnel 9,10, two is exhalant canal 14,15 in addition, the upper end of intake tunnel 9,10 is communicated with cavity 12 in being formed at straight tube 5, and the lower end of intake tunnel 9,10 is communicated with the lower end of exhalant canal 14,15, and the upper end of this exhalant canal 14,15 is communicated with the delivery port 13 that is arranged at forming tube 6 upper ends.Connector 2 is installed in upper end at straight tube 5, and pre-buried outer silk inserts 1 is arranged in the upper end of connector 2, in the lower end of connector 2 pre-buried internal thread inserts 4 is arranged, and between internal thread inserts 4 and straight tube 5 sealing ring 3 is arranged.
In forming tube 6, the two ends up and down of intake tunnel 9,10 and exhalant canal 14,15 are provided with epicoele 11 and cavity of resorption 8 respectively, wherein epicoele 11 is communicated with intake tunnel 9,10, cavity of resorption 8 is communicated with the lower end of intake tunnel 9,10 and exhalant canal 14,15.Delivery port 13 is skewed.
The difference of structure shown in Figure 4 and structure shown in Figure 1 is that intake tunnel has only one, and exhalant canal has two, and all the other structures are identical with Fig. 1.
Fig. 5 is an another kind of form of the present utility model, and this figure provides a cover and the supporting anti-electric shock apparatus of electric heater, and it is made up of water inlet system and outlet system two parts.Water inlet system is made up of antiseep loose joint inserts 19, sealing ring 18, PP-R tube connector 17, PP-R elbow 16, PP-R forming tube 6, the outer silk of antiseep inserts 20.Connect on the water inlet pipe and water outlet pipe screw thread of electric heater, the Inlet and outlet water assembly places outside the electric heater, and its version adopts the O font.Water inlet system and outlet system two parts combine it together by advanced person's Shooting Technique, like this, compared with prior art, make easy for installation, sound construction, easy to maintenance, outward appearance is neat and artistic, practical.This anti-electric shock apparatus is particularly suitable for being installed on outside the electric heater.Wherein, the outer silk of an antiseep inserts 20 that is positioned at the right side is used for linking to each other with the water inlet pipe network; The outer silk of the seepage inserts 20 ' that is positioned at the left side is used for being connected with user's hot water pipe net; The antiseep loose joint inserts 19 ' that is positioned at the left side links to each other with the electric heater outlet pipe; The antiseep loose joint inserts 19 that is positioned at the right side links to each other with the electric heater water inlet pipe; Sealing ring 18 is used for sealing, to prevent seepage; Elbow 16 and PP-R tube connector 17 link together two forming tubes 6, and the system that makes forms a closed-loop path.
The utility model provides a cover and the supporting anti-electric shock apparatus of electric heater, and it is by the water inlet assembly and go out water assembly two parts and form.The water inlet assembly is by the outer silk of antiseep inserts 1, connector 2, sealing ring 3, antiseep internal thread inserts 4, PP-R straight tube 5, PP-R forming tube 6, PP-R plug 7.Go out water assembly by the outer silk of antiseep inserts, connector, sealing ring, antiseep internal thread inserts, PP-R oviduct.During installation, the utility model product is connected on the electric heater water inlet pipe and water outlet pipe screw thread, the Inlet and outlet water assembly is placed inner container of electric water heater, its version adopts the font of falling the mountain; Or straight pipe with holes shape; Loudspeaker straight tube shape prolongs the flow process of water and is not reducing under the flow prerequisite of water, reaches the electric shock-prevention safety needs thereby reduced caliber, and has saved material cost.
Composition and the function of device be as shown in the figure: in the water inlet assembly, the outer silk of an antiseep inserts 1 is used for linking to each other with the pipe network of intaking; Connector 2 makes the outer silk of antiseep inserts 1 connect as one with antiseep internal thread inserts 4; Sealing ring 3 is used for sealing, to prevent seepage; Antiseep internal thread inserts 4 links to each other with water inlet tube of water heater; PP-R straight tube 5 and the flow process pipeline of PP-R forming tube 6 as water; PP-R plug 7 is welded on the PP-R forming tube 6 by hot melting mode.Going out water assembly forms and function: the outer silk of antiseep inserts is used for linking to each other with user's hot water pipe net, connector makes antiseep outer silk inserts and antiseep internal thread inserts connects as one, sealing ring is used for sealing, prevents that seepage, antiseep internal thread inserts link to each other with the outlet pipe of water heater, the PP-R oviduct is hot water flow process pipe.
According to national regulation: it is 10mA that the electrical equipment of some specific regions should be selected specified residue action current for use, in when, because of certain reason electric leakage taking place in the water heater when, and the resistance R=220V/10*10 in the water
-3A=22*10
3Ω a large number of experiments show that through us when the temperature of water in the water heater was 50 ℃, resistivity of water ρ was 7700 Ω .mm; If getting the length of PP-R pipe is L (mm), the PP-R bore is d, and the resistance of water is R, and resistivity of water is ρ, then:
L＝R.πd
2/4ρ＝22*10
3*3.14d
2/4*7700＝2.2d
2
From following formula as can be known, if we guarantee water in the flow process of PP-R pipe more than or equal to 2.2d
2, we just can guarantee user's safety.We just are being based on, and above design philosophy designs.
Utilize the characteristic of PP-R homogeneity hot melt, make whole device form one, do not produce leakage, guaranteed user's security more.
This device makes water isolate fully in whole flow process and metallic conductor by advanced Shooting Technique, has guaranteed the safety of using more.
The various relevant physical characteristic tests of electric heater draw when using by a large amount of simulations, and when the temperature of water in the electric heater was 50 ℃, resistivity of water ρ was 7700 Ω .mm; Than the resistivity of water that checks in the relevant scientific and technical literature data is that 13000 Ω .mm are much smaller.As long as we guarantee water in the flow process of PP-R pipe more than or equal to 2.2d
2, will be more safe and reliable than prior art, guarantee user's safety.
Claims (6)
1, electric heater anti-electric shock apparatus, it is characterized in that: in forming tube (6), at least two passages are arranged, one of them is an intake tunnel, another is an exhalant canal, the upper end of intake tunnel is communicated with water inlet, the lower end of intake tunnel is communicated with the lower end of exhalant canal, and the upper end of this exhalant canal is communicated with the delivery port (13) that is arranged at the forming tube upper end.
2, electric heater anti-electric shock apparatus as claimed in claim 1, it is characterized in that: the upper end in forming tube (6) connects straight tube (5), in the lower end of forming tube (6) plug (7) is arranged, the intake tunnel cavity (12) interior with being formed at straight tube (5) is communicated with, connector (2) is installed in upper end at straight tube (5), pre-buried outer silk inserts (1) is arranged in the upper end of connector (2), in the lower end of connector (2) pre-buried internal thread inserts (4) is arranged, between internal thread inserts (4) and straight tube (5), sealing ring (3) is arranged.
3, electric heater anti-electric shock apparatus as claimed in claim 1 is characterized in that: intake tunnel and exhalant canal have two respectively.
4, electric heater anti-electric shock apparatus as claimed in claim 1, it is characterized in that: in forming tube (6), the two ends up and down of intake tunnel and exhalant canal are provided with epicoele (11) and cavity of resorption (8) respectively, wherein epicoele (11) is communicated with intake tunnel, and cavity of resorption (8) is communicated with intake tunnel and exhalant canal.
5, electric heater anti-electric shock apparatus as claimed in claim 1 is characterized in that: delivery port (13) is skewed.
6, electric heater anti-electric shock apparatus as claimed in claim 1 is characterized in that: forming tube (6) has two, utilizes pipeline to interconnect respectively at the two ends of two forming tubes (6), and two connectors are installed respectively on every forming tube (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620072706 CN2913945Y (en) | 2006-04-20 | 2006-04-20 | Electroshock preventing device for electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620072706 CN2913945Y (en) | 2006-04-20 | 2006-04-20 | Electroshock preventing device for electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2913945Y true CN2913945Y (en) | 2007-06-20 |
Family
ID=38168543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620072706 Expired - Fee Related CN2913945Y (en) | 2006-04-20 | 2006-04-20 | Electroshock preventing device for electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2913945Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534683A (en) * | 2014-12-26 | 2015-04-22 | 珠海格力电器股份有限公司 | Electricity-proof wall structure and electric water heater |
| CN109028556A (en) * | 2018-03-02 | 2018-12-18 | 青岛经济技术开发区海尔热水器有限公司 | Electric water heater |
-
2006
- 2006-04-20 CN CN 200620072706 patent/CN2913945Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534683A (en) * | 2014-12-26 | 2015-04-22 | 珠海格力电器股份有限公司 | Electricity-proof wall structure and electric water heater |
| CN109028556A (en) * | 2018-03-02 | 2018-12-18 | 青岛经济技术开发区海尔热水器有限公司 | Electric water heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070620 Termination date: 20120420 |