CN2591506Y - Electrical shock protection safety electric water heater equiped with external leakage insulation electric appliance - Google Patents

Abstract

The utility model discloses an electrical shock protection safety electric water heater which is provided with an external leakage insulation electric appliance, the electric water heater is composed of a container, an outer shell, an electric heating pipe arranged in the container, a water inlet pipe joint and a water outlet pipe joint, wherein, the water inlet pipe joint and the water outlet pipe joint are arranged on a shell body. The utility model is characterized in that the water inlet joint and the water outlet joint which are arranged on the shell body are respectively connected with the leakage insulation electric appliance which is composed of an upper insulation shell and a lower insulation shell which are connected with each other, and an insulation pipe and at least one layer of lower insulation sleeve barrel are arranged in a lower shell body. The center of the insulation pipe is straight through, the lower insulation sleeve barrel and the insulation pipe have concentric circles, and the opening of the lower insulation sleeve barrel faces upward. At least two layers of upper insulation sleeve barrels are supported on an upper shell body, the upper insulation sleeve barrels are connected with the upper shell body, and the upper insulation sleeve barrels and a central straight through pipe have concentric circles; the opening of the upper insulation sleeve barrels faces downward, and upper and lower two sleeve barrel layers pipe are inserted into each other to form upper and lower fold line paths of an annular space. The utility model has the advantages of simple structure, long fold line annular space water flow path and large water flow resistance value, and the resistance value of the water flow is reduced. The utility model can guarantee a user to use the utility model under the safe current value, and the user has no electric shock accident absolutely.

Description

Peripheral hardware is every the electric shock-prevention safety type electric heater of Electrical leakage

Technical field

The utility model relates to the electric shock-prevention safety type electric heater of a kind of peripheral hardware every Electrical leakage.The improvement technology that belongs to electric heater.

Background technology

Existing electric heater is to prevent from because of electric heating tube damages the way that electric leakage causes electric shock accidents to take place, and mainly contains two kinds of forms, the one, anticreeping switch is set, and promptly when leakage current surpassed setting, switch was cut off the electricity supply automatically, reaches the purpose of protection against electric shock; The 2nd, the electric leakage automatic detection device is installed on electric heater, when leakage current surpassed setting, this device was reported to the police automatically, reminds powered-down, reaches the purpose of protection against electric shock.Above-mentioned anti-electric shock apparatus in use all has certain good effect, but its reliability does not accomplish that still absolutely such is in a single day malfunctioning every electric leakage device, still the accident that can get an electric shock.

Summary of the invention

The purpose of this utility model is to provide the electric shock-prevention safety type electric heater of a kind of peripheral hardware every Electrical leakage.Be provided with every Electrical leakage on the water inlet pipe and water outlet pipe joint of this electric heater outside housing, can effectively leakage current value be disposed below human body safe current value, guarantee being perfectly safe of user.

For achieving the above object, the utility model is realized by following technical proposals.Comprise by courage body and shell, and the electric heater of the water inlet pipe and water outlet pipe joint formation on interior electrothermal tube of courage and the housing, it is characterized in that, on the water inlet pipe and water outlet pipe joint on the housing, connect respectively every Electrical leakage, should form by the insulation shell up and down of a connection every Electrical leakage, the straight-through insulation tube of central authorities is set on the lower house to be reached and the concentrically ringed one deck at least of this pipe opening following insulating sleeve up, upper shell supporting connect one with the central straight siphunculus concentrically ringed two-layer at least downward opening on insulating sleeve, on, insert and form the path of broken line up and down of annular space down between two sleeve layers pipes mutually.

The above-mentioned height of central straight siphunculus in housing is 50～300mm, and its internal diameter φ is 5～14mm, and wall thickness is 0.5～2.0mm, and the sleeve pipe height is 48～298mm up and down, and the annular space duct width is 0.5～3.0mm.

The seam Tiaokou is offered in above-mentioned central straight siphunculus upper surface, and the sleeve wall end face is offered the seam Tiaokou up and down.

Advantage of the present utility model is that simple in structure, broken line annular space flow path is long, increased the resistance value of current, thereby reduced the current value of current, even therefore electric heating tube damages electric leakage, can guarantee that also the user is in charged use under the safe current value, and electric shock accidents can never take place.

Description of drawings

Fig. 1 is the utility model structural representation.

Among the figure 1 be the electric heater housing, 2 for the courage body, 3 for heating tube, 4 for the protection outer cover, 5 for admitting pipe joint, 6 for every Electrical leakage, 7 for every the Electrical leakage lower house, 8 for lower sleeve, 9 for the central straight siphunculus, 10 for every the Electrical leakage upper shell, 11 for upper bush, 12 for titting water outlet.

The specific embodiment

With 42 liters of electric heaters is example, connects respectively every Electrical leakage on its water inlet pipe and water outlet pipe joint, and specific practice is such.Every the high 70mm of last lower house of Electrical leakage, it is 6mm that central straight siphunculus internal diameter is set on the lower house, high 65mm, and wall thickness 1.0mm, little seam opened in the upper surface, the high 64mm of its opening overcoat up, internal diameter is 12mm, wall thickness 1.0mm, little seam offered in the upper surface; The opening that the upper shell supporting connects is towards lower sleeve, and the nexine sleeve diameter is 9mm, and the outer layer sleeve internal diameter is 13mm, and all offers the bar sealing in two-layer sleeve lower end, and the annular space width is 0.5mm between sleeve layers, and this sleeve height is 64mm, wall thickness 1.0mm.

Claims (3)

1, a kind of peripheral hardware is every the electric shock-prevention safety type electric heater of Electrical leakage, this electric heater comprises by courage body and shell, and the water inlet pipe and water outlet pipe joint on interior electrothermal tube of courage and the housing constitutes, it is characterized in that: on the water inlet pipe and water outlet pipe joint on the housing, connect respectively every Electrical leakage, should form by the insulation shell up and down of a connection every Electrical leakage, the straight-through insulation tube of central authorities is set on the lower house to be reached and the concentrically ringed one deck at least of this pipe opening following insulating sleeve up, upper shell supporting connect one with the central straight siphunculus concentrically ringed two-layer at least downward opening on insulating sleeve, on, insert and form the path of broken line up and down of annular space down between two sleeve layers pipes mutually.

2, by the electric shock-prevention safety type electric heater of the described peripheral hardware of claim 1 every Electrical leakage, it is characterized in that: the height of central straight siphunculus in housing is 50～300mm, its internal diameter φ is 5～14mm, wall thickness is 0.5～2.0mm, the sleeve pipe height is 48～298mm up and down, and the annular space duct width is 0.5～3.0mm.

3, by the electric shock-prevention safety type electric heater of the described peripheral hardware of claim 1 every Electrical leakage, it is characterized in that: the seam Tiaokou is offered in central straight siphunculus upper surface, and the sleeve wall end face is offered the seam Tiaokou up and down.

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