The quick temperature-sensitive combining structure of heater and temperature-sensing element
Technical field
The utility model is related to the technical field of heater and temperature-sensing element combination, and in particular to a kind of heater and temperature-sensitive
The quick temperature-sensitive combining structure of element.
Background technology
Existing heater, such as:Instantaneous heating body, its temperature rises very soon, and temperature-sensing element temperature-sensitive slightly postpones, hair
Hot body easily causes dry combustion method, in turn results in heater and the potential safety hazard such as burns.
Temperature-sensing element, is placed on non-heating layer by current instantaneous heating body mostly, and temperature is first transmitted by heating layer
To non-heating layer, non-heating layer material is mostly stainless steel plate, and heat conduction rate is slower, and temperature is passed to temperature-sensitive by non-heating layer again
Element, temperature rise rate is substantially reduced, and temperature-sensitive delay is obvious.
If temperature-sensing element is set directly on heating layer, heating layer is inner conducting layer external insulation film, straight with temperature-sensing element
Contact easily causes short-circuit risks, while the overcoating device of heating layer is easily caused, local radiating is bad, and hot-spot causes heater
Service life reduction.
Utility model content
The purpose of this utility model is to overcome the shortcomings of that above-mentioned prior art is present, and provides a kind of simple in construction, conjunction
Reason, accurately temperature-sensitive speed height and the quick temperature-sensitive combining structure of heater and temperature-sensing element.
What the purpose of this utility model was realized in:
The quick temperature-sensitive combining structure of heater and temperature-sensing element, including heater and temperature-sensing element, the heater bag
Heating layer and its external insulation layer are included, it is characterized in that, it is provided with the external insulation layer on heat-conducting layer, heat-conducting layer and is provided with temperature-sensitive position
Put, temperature control element is contacted with temperature-sensitive position so that the heating layer on heater, its heat by external insulation layer through heat-conducting layer, soon
Speed is delivered to the temperature-sensitive position of temperature-sensing element;The quick temperature-sensitive combining structure of such heater and temperature-sensing element, by exhausted outside
Heat-conducting layer is set up in edge layer, makes the heat of heating layer by external insulation layer through heat-conducting layer, is quickly delivered to temperature-sensitive position and temperature control
Element, had both improved the temperature-sensitive speed of temperature-sensing element, the degree of accuracy of its temperature-sensitive can be improved again, and simple and reasonable for structure.
The utility model can also be solved using following technical measures:
Further, the heat-conducting layer is fitted in external insulation layer outer surface, is led so that heat can be passed to rapidly and uniformly
Thermosphere.
Further, the area of the heat-conducting layer is less than the area of external insulation layer, had both prevented that excess calories scattered and disappeared, and had ensured again
Heat is quickly passed to temperature-sensitive position and temperature control element, so, the area of its thermal conductive surface can be smaller.
Further, the heating layer outer surface is provided with the external insulation layer, and heating layer inner surface setting has base material, base
Material connects water-filled pipe, so that the heat of heating layer passes to water-filled pipe by base material, it is fast to flowing through the water in water-filled pipe
Speed heating, constitutes instantaneously heated type heater.
Further, the base material is tortuous into hollow cylindrical shape, and heating layer is around cylindric substrate outer surface is located at, outside
Insulating barrier is covered in heating layer outer surface, and temperature-sensing element is fixed on sensed position so that temperature-sensing element can directly, it is fast exactly
Fast temperature-sensitive.
Further, the thermal conductivity heating rate of the heat-conducting layer is more than the thermal conductivity of base material, so, is conducive to further improving sense
The sensitivity of warm element temperature-sensitive.
Further, the heat-conducting layer is the silver foil layer cemented on external insulation layer surface, and silver foil layer, which belongs to good, leads
Hot material.
Further, the tortuous curl of the water-filled pipe and base material inner surface is close to, spiral helicine water-filled pipe
Water inlet under, delivery port is upper.
The beneficial effects of the utility model are as follows:
(1)The quick temperature-sensitive combining structure of such heater and temperature-sensing element, by setting up heat-conducting layer on external insulation layer,
Make the heat of heating layer by external insulation layer through heat-conducting layer, be quickly delivered to temperature-sensitive position and temperature control element, both improve temperature-sensitive member
The temperature-sensitive speed of part, can improve the degree of accuracy of its temperature-sensitive again, and simple and reasonable for structure.
(2)Relative to prior art, the temperature sensor delay of temperature-sensing element is significantly smaller;Further, heating layer and temperature-sensitive member
Part is not directly contacted with, and short-circuit risks are smaller.
(3)The thermal conductivity heating rate of heat-conducting layer is more than the thermal conductivity of base material, is conducive to further improving the spirit of temperature-sensing element temperature-sensitive
Sensitivity.
Brief description of the drawings
Fig. 1 is the quick temperature-sensitive combining structure schematic diagram of heater of the present utility model and temperature-sensing element.
Fig. 2 is that the heater front view after temperature-sensing element is removed in Fig. 1.
Fig. 3 be Fig. 2 A-A to cut-away view.
Fig. 4 is the curve map that the utility model temperature-sensing element surveys dry combustion method temperature.
Embodiment
Refer to shown in Fig. 1 to Fig. 3, the quick temperature-sensitive combining structure of a kind of heater and temperature-sensing element, including heater 1
With temperature-sensing element 2, the heater 1 includes water-filled pipe 14, base material 13, heating layer 11 and its external insulation layer 12, it is characterized in that,
It is provided with the external insulation layer 12 on heat-conducting layer 15, heat-conducting layer 15 and is provided with temperature-sensitive position 5, temperature control element 2 and temperature-sensitive position 5
Contact, so that the heating layer 11 on heater 1, its heat, through heat-conducting layer 22, is quickly delivered to temperature-sensitive member by external insulation layer 12
The temperature-sensitive position 5 of part 2 and temperature control element 2, the base material 13 are tortuous into hollow cylindrical shape, and heating layer 11 is around being located at cylindrical shape
The outer surface of base material 13, external insulation layer 12 is covered in the outer surface of heating layer 11, and temperature-sensing element 2 is fixed on temperature-sensitive position 5.
In the present embodiment, the heat-conducting layer 15 is fitted in the outer surface of external insulation layer 12, is conducive to improving the quick biography of biography amount
Pass, improve sensing speed and the degree of accuracy.
As more specifically scheme, the area of the heat-conducting layer 15 is less than the area of external insulation layer 12.
In the present embodiment, the outer surface of heating layer 11 of the heater 1 is provided with the external insulation layer 12, heating layer 11
Surface is provided with base material 13, the connection water-filled pipe 14 of base material 13, so that the heat of heating layer 11 passes to water flowing by base material 13
Pipeline 14, is quickly heated to flowing through the water in water-filled pipe 14, constitutes instantaneously heated type heater.
In order to further improve the temperature-sensitive speed of temperature-sensing element 2, the thermal conductivity heating rate of the heat-conducting layer 15 is more than base material 13
Thermal conductivity, the heat-conducting layer 15 is the silver foil layer cemented on the surface of external insulation layer 12.
In the present embodiment, the tortuous curl of the water-filled pipe 14 is simultaneously close to the inner surface of base material 13, spiral helicine logical
The water inlet 3 of water lines 14 is under, delivery port 4 upper, temperature-sensing element is positioned close to the position of delivery port 4, to sense water outlet
Temperature.
It refer to shown in Fig. 4, when Fig. 4 is heating layer heating dry combustion method, the dry combustion method temperature curve measured by temperature-sensing element 2, from
As can be seen that there is heat-conducting layer 22 bigger than the slope that the temperature without heat-conducting layer rises in Fig. 4, i.e. temperature sensor delay is smaller(t1
< t2).
The sensing element 2 of the present embodiment can be temperature controller or other temperature sensing devices, and the technical scheme of this patent,
It can be applicable on the water purifier field with heating function.