The electric heater that a kind of double hyer insulation and preventing leaks electricity
Technical field
The utility model relates to electric heater, relates in particular to a kind of double hyer insulation and have safety ground to prevent the electric heater that leaks electricity.
Background technology
Adopt the product of electric energy in the life, as; Various electric calorifie installations such as electric furnace, electromagnetic oven, light-wave cooker, heating installation, electric heater, electric heating appliance, utilize electric energy heating, adopt little energy-conservation, the flames of anger of the heating of insulating carrier face, thermal loss, fail safe, durability is good, save benefits such as electric power, be applied on the heating appliances by wide model.But traditional electric heating element utilizes the insulating carrier heating because no safety ground can't be got rid of the possibility of easy electric leakage, and safety is also heat insulation inadequately inadequately, scorches desk easily.
Therefore, how effectively to prevent on the insulating carrier electric heater expection electric leakage and effectively heat insulation be a technical problem that needs to be resolved hurrily in the industry.
The utility model content
The utility model is for solving electric heater electric leakage and the heat insulation inadequately technical problem on the existing insulating carrier, the electric heater that a kind of safety ground is provided, improves the double hyer insulation of effect of heat insulation and prevent to leak electricity.
For solving the problems of the technologies described above, the technical scheme that the utility model provides is: the electric heater that a kind of double hyer insulation and preventing leaks electricity, comprise the insulating heat-conductive carrier, be arranged on the heater on this insulating heat-conductive carrier one side, wherein: but first non-insulated conductor that on this heater, is disposed with insulating thermal conductor and ground connection.
Wherein, but second non-insulated conductor that on the another side of described insulating heat-conductive carrier, is disposed with insulation insulator and ground connection.
Wherein, be provided with cavity in the described insulation insulator, be provided with thermal reflecting coating or heat-insulation and heat-preservation cotton in this cavity.
Wherein, described first non-insulated conductor couples together by lead with second non-insulated conductor and is connected with the power safety earth connection.
Wherein, described first non-insulated conductor all or partly covers described insulating thermal conductor.
Wherein, described second non-insulated conductor all or partly covers described insulation insulator.
Wherein, described first non-insulated conductor and second non-insulated conductor are hollow form, planar, netted or other geometrical form.
Compared with prior art, but the utility model is disposed with first non-insulated conductor of insulating thermal conductor and ground connection on heater, but on the another side of insulating heat-conductive carrier, be disposed with second non-insulated conductor of insulation insulator and ground connection, the liquid that the insulation of live part is partly contacted does not directly contact with reinforced insulation, the electric energy transfer that the non-insulated conductor expection is leaked arrives on the ground, having prevented that the unsafe problems that electric leakage produces from taking place; Insulation is provided with that cavity has thermal reflecting coating or the heat-insulation and heat-preservation cotton reaches good effect of heat insulation in the insulator; The utility model can be applied in other electrically heated equipment, be widely used as kettle, electric chafing dish, roaster, bread furnace, hot-water line etc.
Description of drawings
Below in conjunction with drawings and Examples the utility model is made detailed explanation, wherein:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the schematic diagram that the utility model is applied in electric kettle;
Fig. 3 is the schematic diagram that the utility model is applied in heating tube.
Embodiment
As shown in Figure 1, structural representation of the present utility model, a kind of double hyer insulation also has safety ground and prevents the electric heater that leaks electricity, it includes insulating heat-conductive carrier 4, be arranged on the heater 3 on this insulating heat-conductive carrier one side, but on this heater 3, be disposed with first non-insulated conductor 1 of insulating thermal conductor 2 and ground connection, be connected with a lead (not shown) on this conductor, but on the another side of insulating heat-conductive carrier 4, be disposed with second non-insulated conductor 6 of insulation insulator 5 and ground connection, also be connected with a lead (not shown) on this conductor, be provided with a cavity in the insulation insulator 5, first non-insulated conductor 1 couples together by lead with second non-insulated conductor 6 and is connected with the power safety earth connection.To expect the electric energy transfer of leaking to ground by lead, having prevented that the unsafe problems that electric leakage produces from taking place, and make the container that needs heating or liquid be in zero potential all the time and reach security purpose; The cavity that is provided with in the insulation insulator is provided with thermal reflecting coating in the cavity or the heat-insulation and heat-preservation cotton can reach good effect of heat insulation.
Needs according to design, first non-insulated conductor 1 all or partly covers insulating thermal conductor 2, second non-insulated conductor 6 all or partly covers insulation insulator 5, the first non-insulated conductors 1 and second non-insulated conductor 6 and is hollow form (centre is vacated), planar (tiling), netted or other geometrical form or the like.
The utility model is made circular heater 7, be applied to kettle 8 (or electric rice cooker etc.) and add and pine for, as shown in Figure 2, be installed on the bottom of kettle 8 and just can realize its function making circular heater 7.
The utility model is made tubular heater 9, and as shown in Figure 3, tubular heater is as using in water heater or other liquid heat, and flowing liquid is in zero potential all the time and reaches security purpose in pipe.The utility model can also be designed to random geometry and be applied in the different firing equipments, can in large industry equipment, use and improve its fail safe, be widely used.
Abovely the utility model is specifically described, but those skilled in the art can make numerous variations or variation to these execution modes these changes and changing within the scope that should fall into the utility model protection in conjunction with better embodiment.