CN104534683A - Electricity guard structure and electric water heater - Google Patents
Electricity guard structure and electric water heater Download PDFInfo
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- CN104534683A CN104534683A CN201410852318.2A CN201410852318A CN104534683A CN 104534683 A CN104534683 A CN 104534683A CN 201410852318 A CN201410852318 A CN 201410852318A CN 104534683 A CN104534683 A CN 104534683A
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- plastic tube
- water pipe
- water
- joint
- wall structure
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Abstract
The invention provides an electricity guard structure which is used for preventing electricity leakage of an electric water heater. The electricity guard structure comprises a water pipe assembly, a plastic pipe and an adapter assembly. The water pipe assembly comprises a water pipe and a water pipe connector, wherein the first end of the water pipe connector is connected with the water pipe, and the water pipe serves as a water inlet pipe or a water outlet pipe of an inner container of a water tank of the electric water heater. The first end of the plastic pipe is embedded in the second end of the water pipe connector and fixedly connected with the second end of the water pipe connector. The adapter assembly is connected with the second end of the plastic pipe in a sealed mode. The adapter assembly is communicated with the water pipe assembly through the plastic pipe. The invention further relates to the electric water heater. By means of the electricity guard structure and the electric water heater, water in the inner container of the water tank can only flowing out through the plastic pipe instead of overflowing out of the plastic pipe, water is reduced to human body safety voltage from high voltage, and therefore the aim of preventing electricity leakage is achieved, and safety and reliability are achieved. In addition, the electricity guard structure is simple, and the production cost is reduced.
Description
Technical field
The present invention relates to electric heater technical field, particularly relate to a kind of anti-electricity wall structure and electric heater.
Background technology
General Water tank for electrical water heater anti-electricity wall structure is built-in with insulation bushing pipe, and is built in inner water tank by water-in and water-out bushing pipe, is reached the object of protection against electric shock by the tortuous increasing current route.Certainly, market also there is the anti-electricity wall structure adopting external insulating tube joint.But these two kinds of anti-electricity wall structures are comparatively complicated, and production cost is higher.
Summary of the invention
In view of the present situation of prior art, the object of the present invention is to provide a kind of anti-electricity wall structure and electric heater, simplify anti-electricity wall structure, structure is simple, thus reduce production cost.
For achieving the above object, the present invention adopts following technical scheme:
A kind of anti-electricity wall structure, for preventing the electric leakage of electric heater, comprising:
Conduit assembly, described conduit assembly comprises water pipe and water pipe head, and the first end of described water pipe head is connected with described water pipe, and described water pipe is as the water inlet pipe of the inner water tank of described electric heater or outlet pipe;
Plastic tube, the first end of described plastic tube embeds in described water pipe head second end, is fixedly connected with the second end of described water pipe head; And
Adapter component, the second end of described adapter component and described plastic tube is tightly connected, and described adapter component is communicated with described conduit assembly by described plastic tube.
Wherein in an embodiment, also comprise the water outlet connector be arranged on described inner water tank;
Described conduit assembly runs through described water outlet connector and is embedded in described water outlet connector, and one end of described water outlet connector is embedded in described adapter component, and described water outlet connector is threaded with described adapter component.
Wherein in an embodiment, also comprise the first seal washer, described first seal washer is placed between described water outlet connector and described water pipe head.
Wherein in an embodiment, described adapter component comprises the first joint, connecting portion and the second joint that are interconnected;
Described first joint is embedded in the first end of described connecting portion, and described second joint is embedded in the second end of described connecting portion, and described first joint, described connecting portion and described second joint are injection molded into one; Described first joint and described second joint are made by metal material, and described connecting portion is made up of insulating materials;
One end of described water outlet connector is embedded in described first joint, and described second joint is for connecting peripheral hardware water pipe.
Wherein in an embodiment, the connected mode of described water pipe and described water pipe head for being threaded, bonding or weld; Described water pipe head and the connected mode of described plastic tube be bonding, be threaded or weld.
Wherein in an embodiment, the length of described plastic tube and the cross-sectional area of described plastic tube should meet: L >=16.9S;
Wherein, L is the length of plastic tube, and S is total cross-sectional flow area of plastic tube.
Wherein in an embodiment, described plastic tube is antipriming pipe;
At described plastic tube axially, arrange multiple through hole in described plastic tube, multiple described through hole is as water stream channel.
Wherein in an embodiment, described through hole is circular port, square opening or tri-angle-holed.
Wherein in an embodiment, also comprise the second seal washer, described second seal washer is arranged between described adapter component and described plastic tube.
The invention still further relates to a kind of electric heater, comprise the anti-electricity wall structure described in above-mentioned any one.
The invention has the beneficial effects as follows:
Anti-electricity wall structure of the present invention and electric heater, by arranging plastic tube in water pipe head, and the first end of plastic tube to be embedded in water pipe head and to be fixedly connected with water pipe head, second end of plastic tube and adapter component are tightly connected, the water in inner water tank is made to overflow from plastic tube and can only to flow out through plastic tube, make water be low to moderate human safety voltage from high pressure drop, reach the object preventing from leaking electricity, safe and reliable.And anti-electricity wall structure of the present invention is comparatively simple, reduces production cost.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of anti-electricity wall structure one embodiment of the present invention.
Detailed description of the invention
In order to make technical scheme of the present invention clearly, below in conjunction with accompanying drawing, anti-electricity wall structure of the present invention and electric heater are described in further detail.Should be appreciated that specific embodiment described herein only in order to explain that the present invention is not intended to limit the present invention.
As shown in Figure 1, the anti-electricity wall structure of one embodiment of the invention, comprises conduit assembly, plastic tube 5, adapter component 1, second seal washer 2, first seal washer 6 and water outlet connector 4, leaks electricity cause personal injury for preventing electric heater.Wherein, conduit assembly is communicated with the inner water tank of electric heater, and comprise water pipe 7 and water pipe head 3, the first end of water pipe head 3 is connected with water pipe 7, and water pipe 7 is as the water inlet pipe of the inner water tank of electric heater or outlet pipe.Preferably, the connected mode of water pipe 7 and water pipe head 3 for being threaded, bonding or weld, and the external diameter of water pipe 7 should be suitable with the internal diameter of the first end of water pipe head 3.
The first end of plastic tube 5 embeds in the second end of water pipe head 3, and namely plastic tube 5 is arranged on one end relative with water pipe 7.Plastic tube 5 is fixedly connected with the second end of water pipe head 3, preferably, plastic tube 5 and the connected mode of water pipe head 3 be bonding, be threaded or weld or be fastenedly connected (compressed by the second seal washer 2 by adapter component 1, make plastic tube 5 and water pipe head 3 affixed) by adapter component 1 and the second seal washer 2.Preferably, what the water pipe head 3 in the present embodiment adopted is stainless steel water pipe joint.
Adapter component 1 is tightly connected with the second end of plastic tube 5, adapter component 1 is communicated with conduit assembly by plastic tube 5, the water in inner water tank is made to overflow from plastic tube and can only to flow out through plastic tube like this, water is made to be low to moderate human safety voltage from high pressure drop, reach the object preventing from leaking electricity, safe and reliable.Plastic tube 5 in the present embodiment can also adopt other insulation outside plastics to make.
By arranging plastic tube in water pipe head, and the first end of plastic tube to be embedded in water pipe head and to be fixedly connected with water pipe head, second end of plastic tube and adapter component are tightly connected, the water in inner water tank is made to overflow from plastic tube and can only to flow out through plastic tube, water is made to be low to moderate human safety voltage from high pressure drop, reach the object preventing from leaking electricity, safe and reliable.And anti-electricity wall structure of the present invention is comparatively simple, reduces production cost.
As a kind of embodiment, water outlet connector 4 is welded on the inner water tank of electric heater, and certainly, the annexation between water outlet connector 4 with Water tank for electrical water heater inner bag can also be bonding or be threaded.Conduit assembly runs through water outlet connector 4 and is embedded in water outlet connector 4, and one end of water outlet connector 4 is embedded in adapter component 1, and is threaded with adapter component 1.
More preferably, the first seal washer 6 is arranged between water outlet connector 4 and water pipe head 3.Leaking between conduit assembly and water outlet connector can be prevented by arranging the first seal washer 6, realizing fit sealing.Preferably, the internal diameter of the first seal washer 6 is more than or equal to the external diameter of the first end of water pipe head 3, and the external diameter of the first seal washer 6 is less than the internal diameter of water outlet connector 4, makes the first seal washer can be sleeved in water pipe head 3 like this, and closely fix with water outlet connector 4, ensure sealing.
Adapter component 1 comprises the first joint, connecting portion and the second joint that are interconnected, and the first joint is embedded in the first end of connecting portion, and the second joint is embedded in the second end of connecting portion, and the first joint, connecting portion and the second joint are injection molded into one.Wherein, the material of the first joint and the second joint is metal material, and the material of connecting portion adopts PPR (polypropylene random, 3 third polyethylene) or other insulating materials to make.
First joint is connected with water outlet connector 4, and one end of water outlet connector 4 embeds in the first joint, and the second joint is for connecting peripheral hardware outer tube.Wherein, the connected mode of the first joint and water outlet connector 4 can for being threaded, bonding, weld or interference fits etc., in the present embodiment, the first joint preferably welds with the connected mode of water outlet connector 4.
More preferably, the second seal washer 2 is arranged between adapter component 1 and plastic tube 5, for realizing being tightly connected between plastic tube 5 and adapter component 1.In the present embodiment, the second seal washer 2 is arranged between the first joint and plastic tube 5.
As a kind of embodiment, the length of plastic tube and the cross-sectional area of plastic tube should meet: L >=16.9S; Wherein, L is the length of plastic tube, and S is total cross-sectional flow area of plastic tube.According to concrete test and the regulation with reference to GB13955-92 (earth leakage protective device installation and operation), by electric heater Leakage Current location 10mA, the safety of user can be ensured.When inner water tank occur electric leakage or use the direct short circuit of 220V power supply in by heat water time, dielectric resistance R=220V/10mA=22 × 10 of water
3Ω.
National regulations running water resistivity 15 DEG C time should be greater than 1300 Ω .cm, and therefore, when the length of plastic tube is L, total cross-sectional flow area of plastic tube is S, and the dielectric resistance of water is R, and resistivity of water is ρ, then L=RS/ ρ=22 × 10
3÷ 1300 ≈ 16.9S.So, when the length of plastic tube and the cross-sectional area of plastic tube meet L >=16.9S, just can ensure that the dielectric resistance of water is as anti-electric isolution.
More preferably, plastic tube 5 is antipriming pipe.At plastic tube 5 axially, arrange multiple through hole 51 in plastic tube 5, multiple through hole 51 is as water stream channel.In the present embodiment, the shape of through hole 51 can be hole or square opening, also can be tri-angle-holed.Certainly, when can meet voltage drop is low to moderate human safety voltage, the structure of through hole 51 can also be other structures.
The invention still further relates to a kind of electric heater, comprise the anti-electricity wall structure of above-mentioned any embodiment.
Anti-electricity wall structure of the present invention and electric heater, by arranging plastic tube in water pipe head, and the first end of plastic tube to be embedded in water pipe head and to be fixedly connected with water pipe head, second end of plastic tube and adapter component are tightly connected, the water in inner water tank is made to overflow from plastic tube and can only to flow out through plastic tube, make water be low to moderate human safety voltage from high pressure drop, reach the object preventing from leaking electricity, safe and reliable.And anti-electricity wall structure of the present invention is comparatively simple, reduces production cost.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. an anti-electricity wall structure, for preventing the electric leakage of electric heater, is characterized in that, comprising:
Conduit assembly, described conduit assembly comprises water pipe (7) and water pipe head (3), the first end of described water pipe head (3) is connected with described water pipe (7), and described water pipe (7) is as the water inlet pipe of the inner water tank of described electric heater or outlet pipe;
Plastic tube (5), the first end of described plastic tube (5) embeds in described water pipe head (3) second end, is fixedly connected with the second end of described water pipe head (3); And
Adapter component (1), described adapter component (1) is tightly connected with the second end of described plastic tube (5), and described adapter component (1) is communicated with described conduit assembly by described plastic tube (5).
2. anti-electricity wall structure according to claim 1, is characterized in that, also comprises the water outlet connector (4) be arranged on described inner water tank;
Described conduit assembly runs through described water outlet connector (4) and is embedded in described water outlet connector (4), one end of described water outlet connector (4) is embedded in described adapter component (1), and described water outlet connector (4) is threaded with described adapter component (1).
3. anti-electricity wall structure according to claim 2, it is characterized in that, also comprise the first seal washer (6), described first seal washer (6) is placed between described water outlet connector (4) and described water pipe head (3).
4. anti-electricity wall structure according to claim 2, is characterized in that, described adapter component (1) comprises the first joint, connecting portion and the second joint that are interconnected;
Described first joint is embedded in the first end of described connecting portion, and described second joint is embedded in the second end of described connecting portion, and described first joint, described connecting portion and described second joint are injection molded into one; Described first joint and described second joint are made by metal material, and described connecting portion is made up of insulating materials;
One end of described water outlet connector (4) is embedded in described first joint, and described second joint is for connecting peripheral hardware water pipe.
5. anti-electricity wall structure according to claim 1, is characterized in that, the connected mode of described water pipe (7) and described water pipe head (3) for being threaded, bonding or weld; Described water pipe head (3) and the connected mode of described plastic tube (5) be bonding, be threaded or weld.
6. the anti-electricity wall structure according to any one of claim 1-5, is characterized in that, the length of described plastic tube (5) and the cross-sectional area of described plastic tube (5) should meet: L >=16.9S;
Wherein, L is the length of plastic tube, and S is total cross-sectional flow area of plastic tube.
7. anti-electricity wall structure according to claim 6, is characterized in that, described plastic tube (5) is antipriming pipe;
At described plastic tube (5) axially, arrange multiple through hole (51) in described plastic tube (5), multiple described through hole (51) is as water stream channel.
8. anti-electricity wall structure according to claim 7, is characterized in that, described through hole (51) is circular port, square opening or tri-angle-holed.
9. anti-electricity wall structure according to claim 6, it is characterized in that, also comprise the second seal washer (2), described second seal washer (2) is arranged between described adapter component (1) and described plastic tube (5).
10. an electric heater, is characterized in that, comprises the anti-electricity wall structure described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410852318.2A CN104534683B (en) | 2014-12-26 | 2014-12-26 | Electricity guard structure and electric water heater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410852318.2A CN104534683B (en) | 2014-12-26 | 2014-12-26 | Electricity guard structure and electric water heater |
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| Publication Number | Publication Date |
|---|---|
| CN104534683A true CN104534683A (en) | 2015-04-22 |
| CN104534683B CN104534683B (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410852318.2A Active CN104534683B (en) | 2014-12-26 | 2014-12-26 | Electricity guard structure and electric water heater |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106288418A (en) * | 2016-10-17 | 2017-01-04 | 广东海信家电有限公司 | A kind of electricity-isolation wall |
| CN106402528A (en) * | 2016-05-23 | 2017-02-15 | 珠海格力电器股份有限公司 | Water pipe connector, water tank and hot water machine |
| CN109185591A (en) * | 2018-11-09 | 2019-01-11 | 珠海格力电器股份有限公司 | Pipe joint structure and water storage device with it |
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| WO2009016452A2 (en) * | 2007-08-01 | 2009-02-05 | Ariston Thermo S.P.A. | Thermostatic mixer |
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| CN203501476U (en) * | 2013-09-26 | 2014-03-26 | 九阳股份有限公司 | Electric water heater with electricity guard wall |
| CN204478514U (en) * | 2014-12-26 | 2015-07-15 | 珠海格力电器股份有限公司 | Anti-electricity wall structure and electric heater |
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2014
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Patent Citations (7)
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| CN2913945Y (en) * | 2006-04-20 | 2007-06-20 | 贾建清 | Electroshock preventing device for electric water heater |
| WO2009016452A2 (en) * | 2007-08-01 | 2009-02-05 | Ariston Thermo S.P.A. | Thermostatic mixer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402528A (en) * | 2016-05-23 | 2017-02-15 | 珠海格力电器股份有限公司 | Water pipe connector, water tank and hot water machine |
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| CN109185591A (en) * | 2018-11-09 | 2019-01-11 | 珠海格力电器股份有限公司 | Pipe joint structure and water storage device with it |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104534683B (en) | 2017-04-12 |
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