CN201145415Y

CN201145415Y - Wall-mounted anti-electric shock device of water heater

Info

Publication number: CN201145415Y
Application number: CNU2007200591276U
Authority: CN
Inventors: 黎志坚
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-11-02
Filing date: 2007-11-02
Publication date: 2008-11-05
Anticipated expiration: 2017-11-02

Abstract

The utility model relates to an electricity guard for water heaters. The electricity guard comprises a main body made from material which is resistant to high temperature as well as high voltage and high in insulation property, an upper cover connected with one end of the main body, and a lower cover with the other end of the main body far from the upper cover. A plurality of groups of pipelines in fold-back structure are arranged inside the main body; the pipelines are connected into a long pathway at a port; the total length of the pathway is between 420 and 1450 mm; the cross section area of the pathway is between 8 and 30 mm<2>; the upper cover and the lower cover are respectively provided with a through hole corresponding to the pathway. The electricity guard for water heaters is simple and reasonable in structure, convenient to use and maintain and simple in fabrication process.

Description

Water heater is prevented electric wall

Technical field

The utility model relates to the anti-electric leakage device of a kind of water heater, and particularly a kind of water heater is prevented electric wall.

Background technology

Electric heater is in the market guaranteeing all to have taked a lot of safeguard measures in the personal safety, for example: armouring heat-generating pipe, ceramic heating element, leakage switch, reliable ground etc., and national safety standard has also adopted anti-electric wall technology.

The anti-definite statement method of electric wall technology should be " a water resistance decay isolation method ".In general impression, water is a kind of conductor, with electrically contact very dangerous.In fact, any object all has resistance, anti-electric wall (being water resistance decay isolation method) is exactly the resistance that utilized water itself to be had (resistivity should be greater than 1300O.cm 15 ℃ the time to stipulate running water as GB), by to water service pipe Material Selection (as insulating materials) in the electric heater, caliber and distance are shaped as Fang Dianqiang really.When electric heater energising work, even the water of heating inner bag has electricity, also can be the time be fallen to reach purpose with the electricity isolation by the resistance decrement of water itself by anti-electric wall, make water heater Inlet and outlet water two ends reach safe voltage and electric current.Adopt anti-electric wall technology not only can intercept the issuable electric leakage of electric heater itself, also can intercept, reach abundant guarantor's bathing purpose of safety because of ground wire electrification or the charged security threat that shower person is brought of water pipe.

Anti-electric wall has built-in and two kinds of externals.Built-in anti-electric wall, its operation principle are to adopt " water resistance decay isolation method " to form many group resistance walls in the turnover water route of heat-generating pipe, leakage current fully can be isolated out.Water inlet pipe in the water heater liner chamber and outlet pipe connect the 53 times isolated pipes of a length greater than radius squared.But, not only take the inner bag space, and maintenance difficulty is big owing to be installed in inner bag.

External is prevented electric wall, as Chinese patent 200620071064.1 " a kind of is the supporting water resistor of electric heater ", at the water inlet and the delivery port of electric heater, has adopted the external conveyor screw to prevent electric wall.But this spiral design, complex manufacturing technology, difficulty of processing is big.

Therefore, we need a kind of simple and reasonable, use easy to maintenance, the anti-electric wall of the simple external water heater of manufacture craft.

The utility model content

Based on the deficiencies in the prior art, goal of the invention of the present utility model provide a kind of simple and reasonable, use easy to maintenance, the anti-electric wall of the simple external water heater of manufacture craft.

In order to address the above problem, the utility model provides a kind of water heater to prevent electric wall, comprise the main body of making by material high temperature resistant, high pressure resistant, high insulation, the loam cake that is connected with main body one end, with the lower cover that is connected with the main body other end away from loam cake, described body interior is provided with the turn back pipelines of structure of many groups, and pipeline connects into a long path at port, the total length of path is between 420mm～1450mm, and passageway cross-sectional area is at 8mm ²～30mm ²Between, loam cake and lower cover are respectively equipped with a through hole corresponding with path.

Described cross-section of pipeline can be circular hole, polygonal hole or irregularly-shaped hole.

Described loam cake and lower cover and main body be connected to ultrasonic bonding.

Preferably, described path is that the pipeline of 7 groups of structures of turning back is formed by connecting.

Preferably, the total length of described path is between 900mm～1200mm, and passageway cross-sectional area is at 15mm ²～25mm ²Between.

The loam cake of the anti-electric wall of the utility model water heater connects the delivery port of water heater, and lower cover can connect shower nozzle or other discharging device.

Compared with prior art, the utility model has adopted the pipeline of the structure of turning back in the main body of Fang Dianqiang, makes full use of the inner space of body construction, prolonged outlet conduit length, and production technology is simple.The demand different according to market can also adopt different cross-section of pipeline, control caliber, thereby control water resistance.Loam cake links to each other with main body by ultrasonic bonding with lower cover, plays waterproof effect.

For making the utility model easier to understand, further set forth the anti-electric wall of a kind of water heater of the present utility model below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 a is the installation diagram of the anti-embodiment of electric wall of the utility model water heater;

Fig. 1 b is the assembly drawing of the anti-electric wall of Fig. 1 a embodiment; Fig. 2 a is the front view of the main body of Fig. 1 a embodiment;

Fig. 2 b is the vertical view of the main body of Fig. 1 a embodiment;

Fig. 2 c is the upward view of the main body of Fig. 1 a embodiment;

Fig. 2 d is the B-B cutaway view of the main body of Fig. 2 b embodiment.

The specific embodiment

With reference now to accompanying drawing, preferred embodiment of the present utility model is described.

Shown in Fig. 1 a and Fig. 1 b, water heater is prevented electric wall, comprises the main body of being made by the material of high temperature resistant, high pressure resistant, high insulation 100, and the loam cake 200 that is connected with main body 100 1 ends is with the lower cover 300 that is connected with main body 100 other ends away from loam cake 200.Shown in Fig. 2 a, Fig. 2 b, Fig. 2 c, Fig. 2 d, main body 100 inside are provided with the pipeline 110 of 7 groups of structures of turning back, and pipeline 110 connects into a long path at port, and the total length of path is 1100mm, and passageway cross-sectional area is 24mm ², on be covered with a through hole 210 corresponding with path, be covered with down a through hole 310 corresponding with path.Described pipeline 110 cross sections are circular hole.The ultrasonic bonding that is connected to of loam cake 200 and lower cover 300 and main body 100.

The total length of path can be between 420mm～1450mm, and passageway cross-sectional area can be at 8mm ²～30mm ²Between; Preferably, the total length of path is between 900mm～1200mm, and passageway cross-sectional area is at 15mm ²～25mm ²Between.

Cross-section of pipeline can also be polygonal hole or irregularly-shaped hole.

Above disclosed only is preferred embodiment of the present utility model, can not limit interest field of the present utility model with this certainly, and therefore the equivalent variations of being done according to the utility model claim still belongs to the scope that the utility model is contained.

Claims

1, the anti-electric wall of a kind of water heater, comprise the main body of making by material high temperature resistant, high pressure resistant, high insulation, the loam cake that is connected with main body one end, with the lower cover that is connected with the main body other end away from loam cake, it is characterized in that described body interior is provided with the pipelines of organizing the structure of turning back more, pipeline connects into a long path at port, the total length of path is between 420mm～1450mm, and passageway cross-sectional area is at 8mm ²～30mm ²Between, loam cake and lower cover are respectively equipped with a through hole corresponding with path.

2, water heater is prevented electric wall according to claim 1, and it is characterized in that: described cross-section of pipeline is circular hole, polygonal hole or irregularly-shaped hole.

3, the anti-electric wall of water heater according to claim 1 is characterized in that: described loam cake and lower cover and main body be connected to ultrasonic bonding.

4, water heater is prevented electric wall according to claim 1, and it is characterized in that: described path is that the pipeline of 7 groups of structures of turning back is formed by connecting.

5, water heater is prevented electric wall according to claim 1, and it is characterized in that: the total length of described path is between 900mm～1200mm, and passageway cross-sectional area is at 15mm ²～25mm ²Between.