CN207341623U - Insulating pot - Google Patents
Insulating pot Download PDFInfo
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- CN207341623U CN207341623U CN201720474201.4U CN201720474201U CN207341623U CN 207341623 U CN207341623 U CN 207341623U CN 201720474201 U CN201720474201 U CN 201720474201U CN 207341623 U CN207341623 U CN 207341623U
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Abstract
The utility model discloses a kind of insulating pot, including bottom of the pot wall (1) and heating element (4), bottom of the pot wall is grade metal plate of the thickness not less than 0.4mm and no more than 0.8mm, the top surface of bottom of the pot wall is formed with the protrusion (11) to raise up, the bottom surface of bottom of the pot wall is correspondingly formed with from the groove in the recessed protrusion in the bottom surface, filled with low thermal conductivity material of the thermal conductivity factor no more than 40W/mk to form low thermal conductivity material layer (9) in the groove, and heating element annularly coils the underface for being installed on low thermal conductivity material layer.In the insulating pot of the utility model, by filling low thermal conductivity material in the groove in bottom of the pot wall, and the low thermal conductivity material is located at the surface of heating element, the heat conduction along bottom of the pot wall thickness direction can be slowed down, advantageously reduce the wall superheat degree of bottom of the pot wall, the transverse direction of bottom of the pot wall is heated evenly, the phenomenon that local steam bubble is small and intensive on bottom of the pot wall is can effectively avoid, reaches significant noise reduction.
Description
Technical field
The utility model belongs to household appliance technical field, and in particular, to a kind of insulating pot.
Background technology
The bottom of the pot wall of conventional insulating pot uses horizontal bottom of the pot wall more, and electric hot tray is installed on the bottom surface of horizontal bottom of the pot wall, directly
Horizontal bottom of the pot wall is heated, and then heats the liquid water in insulating pot.Wherein, the heat source of electric hot tray comes from electrothermal tube, leads to
Electrothermal tube is crossed horizontal bottom of the pot wall is carried out to concentrate liquid in heating and then heating kettle.
When insulating pot works, electrothermal tube conducts heat to bottom of the pot wall in a manner of thermal contact conductance, and contact area is smaller, makes
The degree of superheat of the thermal contact area of bottom of the pot wall and electrothermal tube is larger, so that the steam bubble in thermal contact area generation is small and departs from
Frequency is high, departs from the small bubble of bottom of the pot wall and liquid of the heat transfer of itself to periphery can be made small vapour during rising
Bubble is easier to rupture because of loss of heat, produces loud noise.
Utility model content
A kind of insulating pot is provided, can effectively be reduced for above-mentioned deficiency of the prior art or defect, the utility model
The frequency of bubble departure bottom of the pot wall, so as to reduce the frequency that steam bubble ruptures in water, reaches the effect of noise reduction.
To achieve the above object, the utility model provides a kind of insulating pot, including bottom of the pot wall and heating element, the pot
Bottom wall is grade metal plate of the thickness not less than 0.4mm and no more than 0.8mm, and the top surface of the bottom of the pot wall is formed with convex
The protrusion risen, the bottom surface of the bottom of the pot wall is correspondingly formed with from the groove in the recessed protrusion in the bottom surface, described
It is described filled with low thermal conductivity material of the thermal conductivity factor no more than 40W/mk to form low thermal conductivity material layer in groove
Heating element annularly coils the underface for being installed on the low thermal conductivity material layer.
Preferably, the thermal conductivity factor of the low thermal conductivity material layer is not more than 20W/mk, the low thermal conductivity material
The thickness of the bed of material is not less than 0.5mm and is not more than 2mm.
Preferably, the low thermal conductivity material layer is mica layer or ceramic layer.
Preferably, the bottom surface of the bottom of the pot wall is flushed with the bottom surface of the low thermal conductivity material layer.
Preferably, the protrusion is punch forming, and the bottom surface of the bottom of the pot wall is formed with corresponding stamped groove.
Preferably, the top surface of the bottom of the pot wall is equipped with the circle ring area for being used for arranging the protrusion；
Wherein, the multiple protrusions being along the circumferential direction spaced, the protrusion are equipped with the circle ring area
For the linear protrusion of radial direction radially extended, the annular heating element and the circle ring area arranged concentric；
Alternatively, multiple linear protrusions along the extension of string of a musical instrument direction and parallel interval, ring are equipped with the circle ring area
The heating element of shape and the circle ring area arranged concentric；
Alternatively, the protrusion is annular protrusion, the annular heating element and the concentric cloth of the annular protrusion
Put.
Preferably, the inner peripheral of the low thermal conductivity material layer is not more than the inner peripheral of the heating element, and described
The outer peripheral edge of low thermal conductivity material layer is not less than the outer peripheral edge of the heating element.
Preferably, the low thermal conductivity material layer and the heating element arranged concentric, the low thermal conductivity material
The ring width of layer is not less than 1 and no more than 2 not less than the ring width and the ratio between ring width value of the heating element.
Preferably, the inner peripheral of the low thermal conductivity material layer is more than the inner peripheral of the heating element, and described low
The outer peripheral edge of thermal conductivity factor material layer is less than the outer peripheral edge of the heating element.
Preferably, the low thermal conductivity material layer and the heating element arranged concentric, the low thermal conductivity material
The ring width of layer is less than the ring width of the heating element and the ratio between ring width value is not less than 0.5 and less than 1.
Preferably, the protrusion is annular protrusion, and the annular protrusion is formed as with the first circular lance
First fan annular, contact heating region of the heating element in the bottom surface of the bottom of the pot wall are formed as having the second circular lance
The second fan annular, the arc chord angle of first circular lance is less than the arc chord angle of second circular lance.
Preferably, the insulating pot further includes the substrate between the bottom of the pot wall and the heating element, the base
Plate is not less than the high thermal conductivity coefficient metallic plate of 100W/mk for thermal conductivity factor.
Through the above technical solutions, in the insulating pot of the utility model, by bottom of the pot wall top surface formed with upward
Raised protrusion, the bottom surface of bottom of the pot wall is correspondingly formed with, from the groove in the recessed protrusion in the bottom surface, filling out in the groove
Low thermal conductivity material filled with thermal conductivity factor no more than 40W/mk is to form low thermal conductivity material layer, and heating element is in
Cyclic coil is installed on the underface of low thermal conductivity material layer, adds the thickness of thermal contact area, slow down along bottom of the pot wall
The heat conduction of thickness direction, advantageously reduces the wall superheat degree of bottom of the pot wall, is heated evenly the transverse direction of bottom of the pot wall, can effectively avoid
The small and intensive phenomenon of local steam bubble, reaches significant noise reduction on bottom of the pot wall.
Other features and advantages of the utility model will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
The attached drawing for forming the part of the utility model is used to provide a further understanding of the present invention, this practicality is new
The schematic description and description of type is used to explain the utility model, does not form the improper restriction to the utility model.
In attached drawing：
Fig. 1 is the front view of the insulating pot of the utility model；
Fig. 2 is the entirety sectional view of the insulating pot of first preferred embodiment of the utility model；
Fig. 3 is the part A enlarged drawing in Fig. 2；
Fig. 4 is the entirety sectional view of the insulating pot of second preferred embodiment of the utility model；
Fig. 5 is the part B enlarged drawing in Fig. 4；
Fig. 6 be the utility model bottom of the pot wall top surface formed with protrusion when top view, wherein, protrusion is in annulus
Shape；
Fig. 7 be the utility model bottom of the pot wall top surface formed with protrusion when top view, wherein, protrusion in fan ring
Shape；
Fig. 8 be the utility model bottom of the pot wall top surface formed with protrusion when top view, wherein, protrusion for radially
Linear protrusion；
Fig. 9 be the utility model bottom of the pot wall top surface formed with protrusion when top view, wherein, protrusion is straight line
Shape protrusion；
Figure 10 is the entirety sectional view of insulating pot of the prior art；
Figure 11 is installed on the bottom view during bottom surface of bottom of the pot wall for electrothermal tube in the prior art；
Figure 12 is the steam bubble schematic diagram of the top surface of bottom of the pot wall when electrothermal tube is installed on bottom of the pot wall in the prior art；
Figure 13 is the top surface of bottom of the pot wall when being filled with low thermal conductivity material in the utility model in the groove of bottom of the pot wall
Steam bubble schematic diagram.
Description of reference numerals：
1 bottom of the pot wall, 5 shell
11 protrusion, 6 handle
2 bottle body, 7 steam pipe
3 pot lid, 8 substrate
4 heating element, 9 low thermal conductivity material layer
Embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be appreciated that herein
Described embodiment is only used for describing and explaining the present invention, and is not intended to limit the present invention.
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the utility model can
To be mutually combined.
In the utility model, in the case where not making conversely explanation, the noun of locality such as " upper and lower, top, bottom " used is usually
It is each component mutual alignment either on vertical, vertical or gravity direction for direction shown in the drawings
Relationship description word.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
Referring to Figures 1 and 2, the utility model provides a kind of insulating pot, including forms bottom of the pot wall 1,2 and of bottle body of kettle body
Pot lid 3, the bottom of bottom of the pot wall 1 are provided with the heating element 4 for being heated to liquid in pot, and the outer gusset of kettle body is equipped with shell 5, should
It is connected with handle 6 on shell 5, is equipped with steam pipe 7 in kettle body, in handle 6 or between kettle body and shell 5, the bottom of kettle body is set
There is temperature controller, steam pipe 7 guides the steam in kettle body to temperature controller, when temperature controller detects that vapor (steam) temperature reaches preset value
By bi-metal plate deformed to disconnect the power supply of heating element 4, or temperature sensor is equipped with kettle body, works as temperature sensor
When detecting that the temperature in pot reaches preset value, the power supply of heating element 4 is disconnected by micro-chip processor.
In the insulating pot of the prior art, with reference to Figure 11, set on the bottom surface of bottom of the pot wall 1 and be used for liquid in heating kettle
Electrothermal tube, in the whole heating process of insulating pot, electrothermal tube is conducted the heat of itself to bottom of the pot wall 1 in a manner of thermal contact conductance
Bottom surface, the thermal contact area is in a ring and area is smaller, make bottom of the pot wall 1 and electrothermal tube thermal contact area heat flow density compared with
Greatly, cause the degree of superheat of the thermal contact area also larger.Specifically, the degree of superheat of bottom of the pot wall 1 and the thermal contact area of electrothermal tube
Bigger, the gas generated after liquid gasification is supplemented into caused by steam bubble that evaporation power is bigger, then the gas gives steam bubble
Lifting force vertically upward it is also bigger, just depart from bottom of the pot wall 1 into without waiting small bubble to grow up, in this way, when by being arranged at
When the electrothermal tube of the bottom surface of bottom of the pot wall 1 heats liquid in pot, the steam bubble that is generated on bottom of the pot wall 1 is more difficult to grow up and departs from
The frequency of the bottom of the pot wall 1 is also higher, so that departing from, the steam bubble that bottom of the pot wall 1 enters in water is small and intensive, and referring to Figure 12, and this is small
Steam bubble is also easier to rupture in water because of loss of heat during rising, produces loud noise.
In view of this, it is the wall superheat degree of the thermal contact area on reduction bottom of the pot wall 1, makes bottom of the pot wall 1 heated evenly,
So as to avoid the phenomenon that local steam bubble is small and intensive on bottom of the pot wall 1, reach the effect of noise reduction, with reference to Fig. 2 and Fig. 3, in this practicality
In new insulating pot, including bottom of the pot wall 1 and heating element 4, bottom of the pot wall 1 are thickness not less than 0.4mm and no more than 0.8mm's
Grade metal plate, correspondingly forms in the top surface of bottom of the pot wall 1 formed with the protrusion 11 to raise up, the bottom surface of bottom of the pot wall 1
Have from the groove in the recessed protrusion 11 in the bottom surface, and led in the groove filled with thermal conductivity factor no more than the low of 40W/mk
Hot coefficient material is to form low thermal conductivity material layer 9, and annularly coiling is installed on low thermal conductivity material layer 9 to heating element 4
Underface.So set, the heat of heating element 4 can be made first to be not more than the low thermal conductivity of 40W/mk via thermal conductivity factor
Material layer 9 upwards to bottom of the pot wall 1, then again heat the liquid water in pot through bottom of the pot wall 1, so not only thicken by conduction
The thickness of heat transfer, i.e. heat transfer distances increase, and also using the low thermal conductivity of the low thermal conductivity material layer 9, further subtract
The slow heat conduction along 1 thickness direction of bottom of the pot wall, so as to be conducive to the horizontal by thermal balance, the wall mistake of reduction bottom of the pot wall 1 of bottom of the pot wall 1
Temperature.Specifically, the wall superheat degree of bottom of the pot wall 1 reduces, and the gas that liquid gasification generates can be made to enter after steam bubble the steaming produced
Motive also decreases, and correspondingly the gas is given the lifting force vertically upward of steam bubble and also reduced therewith, and then makes steam bubble
Depart from the bottom of the pot wall 1 again after can growing up on bottom of the pot wall 1 into larger steam bubble, referring to Figure 13, taken off in this way, steam bubble can effectively be reduced
From the frequency of bottom of the pot wall 1, the frequency that steam bubble ruptures in water is reduced, so that level of noise when reducing insulating pot work, reaches aobvious
The noise reduction of work.
Wherein, low thermal conductivity material layer 9 can be various appropriate materials, such as mica layer or ceramic layer, its heat conduction
Coefficient should be not more than 40W/mk.Further, to make the heat conduction along 1 thickness direction of bottom of the pot wall slower, low thermal conductivity material
The thermal conductivity factor of the bed of material 9 is preferably not greater than 20W/mk.In addition, the thickness of low thermal conductivity material layer 9 should be not less than 0.5mm
And it is not more than 2mm.It is to be appreciated that low thermal conductivity material layer 9 is thicker, it is slower along the heat transfer of 1 thickness direction of bottom of the pot wall,
Then the wall superheat degree of bottom of the pot wall 1 is also more conducive to noise reduction with regard to smaller, but when the thickness of bottom of the pot wall 1 exceeds certain value, position
The temperature of the top surface heating region of bottom of the pot wall 1 directly over heating element 4 can be less than the temperature on periphery, may inversely increase
Temperature, and can also reduce heat transfer efficiency if thickness is bigger；The low thermal conductivity material layer 9 also should not be excessively thin, if thinner
Low thermal conductivity material layer 9 can then be weakened significantly and slow down the effect that longitudinal direction heat transfer and increase are laterally conducted heat.
Specifically, bottom of the pot wall 1 is preferably grade metal plate of the thickness not less than 0.4 and no more than 0.8.Wherein, bottom of the pot
Wall 1 can be the grade metal plate of various appropriate types, such as 304 stainless steel plates of the food-grade after processing.
It should be noted that herein and the parameter such as following thickness is limited only to illustrate, or it is reasonable under current working
Numerical value, but be not limited to this, and should specifically set as the case may be.
In addition, the protrusion 11 in the top surface formation of bottom of the pot wall 1 is punch forming, in the bottom surface of bottom of the pot wall 1 formed with phase
The stamped groove answered, the molding bottom of the pot wall 1 with protrusion 11, has simple manufacturing process, high rigidity, makes through the stamping process
With the service life it is high the features such as.
Specifically, cricoid heating element 4 can be various appropriate types, such as can be to be arranged at bottom of the pot wall 1
The electrothermal tube of lower section, or Electric radiant Heating Film (i.e. infrared electrothermal film) or the thick film being attached on the bottom surface of bottom of the pot wall 1, can be with
To be arranged on the coil panel of the lower section of bottom of the pot wall 1 or PTC heating plates.But electrothermal tube is usually conducted heat in a manner of thermal contact conductance, and with
The thermocontact area of bottom of the pot wall 1 is small, and for other heating elements 4, electrothermal tube is due to the characteristic and biography of self structure
The reason of hot mode, the heat transfer for being easier to occur to bottom of the pot wall 1 in heating process are uneven so that the part top of bottom of the pot wall 1
The degree of superheat in face is higher, so that producing small and intensive steam bubble in the local top surface of bottom of the pot wall 1, and then insulating pot is existed
Larger noise is easily produced during work, the insulating pot of corresponding electricity consumption heat pipes heat uses the technical solution of the utility model
Afterwards, lower noise can be made preferably to be improved.
With reference to Fig. 2 and Fig. 3, electrothermal tube can be directly welded in bottom (the i.e. bottom of low thermal conductivity material layer 9 of bottom of the pot wall 1
Face is equipped with electrothermal tube), also can by substrate 8 by weld or fastener etc. in a manner of be fixedly connected on bottom of the pot wall 1 bottom surface it is (i.e. low to lead
Hot index material 9 is arranged right below electrothermal tube).In general, it is preferably that soldering connects between electrothermal tube, substrate 8 and bottom of the pot wall 1
Connect.Wherein, substrate 8 is usually the high thermal conductivity coefficient metallic plate that thermal conductivity factor is not less than 100W/mk, and such as copper coin, aluminium sheet are thick
It is fast to spend direction heat conduction, facilitates the installation of electrothermal tube, but have substantially no effect on the heat transfer of electrothermal tube.Well known to a person skilled in the art
It is that usually there is dry combustion method piece on substrate 8, may also function as the purpose for preventing dry combustion method.
In addition, with continued reference to Fig. 2 and Fig. 3, the bottom surface of low thermal conductivity material layer 9 is preferably the bottom surface phase with bottom of the pot wall 1
Flush, i.e., the depth of groove is identical with the thickness of low thermal conductivity material layer 9, is arranged such that to be not only convenient for heating element 4 firm
The bottom (i.e. the bottom surface of low thermal conductivity material layer 9) of bottom of the pot wall 1 is entirely installed on, and when in bottom of the pot wall 1 and heating unit
When adding substrate 8 between part 4, the top surface and the periphery of 1 bottom surface of bottom of the pot wall and central region that can make substrate 8 fit closely, favorably
In the thermal contact conductance of bottom of the pot wall 1 vertically.
Specifically, heating element 4 is annular in shape, to reduce the wall superheat degree of bottom of the pot wall 1, in annular heating element 4
The protrusion 11 for filling low thermal conductivity material is arranged above, the setting of the protrusion 11 on the top surface of bottom of the pot wall 1
Form can have a variety of, such as can be that the top surface of bottom of the pot wall 1 is equipped with and is used to arrange the circle ring area of protrusion 11, in the circle
The multiple protrusions 11 being along the circumferential direction spaced are equipped with ring region, protrusion 11 is that the radial direction radially extended is linearly convex
Go out portion, annular heating element 4 and circle ring area arranged concentric, with reference to Fig. 8；Can be top surface of the protrusion 11 in bottom of the pot wall 1
On layout area be circle ring area, in the circle ring area be equipped with along the string of a musical instrument direction extension and parallel interval multiple linears
Protrusion, annular heating element 4 and circle ring area arranged concentric, with reference to Fig. 9；Can also be that protrusion 11 is annular protrusion
(annular protrusion is included in circular protrusion 11 and in the cricoid protrusion 11 of fan), annular heating element 4 and annular
Protrusion arranged concentric, with reference to Fig. 6 and Fig. 7；It is, of course, also possible to it is other setting forms, this is no longer going to repeat them.Its
In, radially linear protrusion does not do special limit to the central angle of the linear protrusion of radial direction of fan annular herein in fan ring-type
System, such as the central angle can be 10 °, 30 ° or 45 ° etc., specific depending on actual process requirements.In addition, to linear
The width of protrusion does not do special restriction yet.
Specifically, with reference to Fig. 2 and Fig. 3, the inner peripheral of low thermal conductivity material layer 9 is not more than the inner peripheral of heating element 4,
And the outer peripheral edge of low thermal conductivity material layer 9 is not less than the outer peripheral edge of heating element 4, i.e., the ring width of heating element 4 is no more than low
The ring width of thermal conductivity factor material layer 9.So set, on the basis of it slow down the heat transfer along 1 thickness direction of bottom of the pot wall, also increase
The big horizontal heat affected zone of bottom of the pot wall 1, makes the transverse direction of bottom of the pot wall 1 be heated evenly, is conducive to noise reduction.
Wherein, low thermal conductivity material layer 9 and 4 arranged concentric of heating element, the ring width of low thermal conductivity material layer 9 be not small
It should be not less than 1 and no more than 2 in the ring width and the ratio between ring width value of heating element 4.Specifically, low thermal conductivity material layer 9 is with adding
The ratio between the ring width value of thermal element 4 is bigger, and correspondingly the ring width of low thermal conductivity material layer 9 is also bigger, is more conducive to slow down along pot
The horizontal heat conduction of bottom wall 1, then noise reduction is more obvious, but heat transfer efficiency decreases.Certainly, the ratio between the ring width value is not yet
Can be excessive, such as the ratio between low thermal conductivity material layer 9 and the ring width value of heating element 4 should be not more than 2, specifically, in low heat conduction
After the ratio between ring width value of index material 9 and heating element 4 exceeds certain numerical value, then increase the low thermal conductivity material layer 9
Width, although being likewise advantageous to slow down along the horizontal heat transfer of bottom of the pot wall 1, to the wall of the bottom of the pot wall 1 away from heating element 4
The influence of the face degree of superheat is but very small, and noise reduction is not evident.In addition, the ring width of low thermal conductivity material layer 9 is bigger, heat transfer efficiency is just
It is lower, and the material produced needed for the low thermal conductivity material layer 9 is more, increases production cost, therefore, considers low lead
Influence of the ring width of hot index material 9 to noise reduction, heat transfer efficiency and production cost, low thermal conductivity material layer 9 is with adding
The ratio between ring width value of thermal element 4 is preferably not greater than 2, is also not necessarily limited to this certainly.
Certainly, with reference to Fig. 4 and Fig. 5, when the inner peripheral of low thermal conductivity material layer 9 is more than the inner peripheral of heating element 4, and
When the outer peripheral edge of low thermal conductivity material layer 9 is less than the outer peripheral edge of heating element 4, it can also meet to slow down along 1 thickness side of bottom of the pot wall
To heat conduction purpose, i.e. the insulating pot of the utility model uses this technical solution, can also realize the wall mistake for reducing bottom of the pot wall 1
The purpose of temperature, is conducive to noise reduction.
Wherein, in a ring, the ring width of low thermal conductivity material layer 9 is less than for low thermal conductivity material layer 9 and heating element 4
The ring width of heating element 4, and low thermal conductivity material layer 9 and 4 arranged concentric of heating element.Specifically, low thermal conductivity material
The ratio between layer 9 and ring width value of heating element 4 more advantageously reduce the wall superheat degree of bottom of the pot wall 1, i.e. noise reduction effect closer to 1
Fruit is more obvious；Conversely, low thermal conductivity material layer 9 and the ratio between the ring width value of heating element 4 are smaller, noise reduction is not more evident,
Therefore, the ratio between low thermal conductivity material layer 9 and the ring width value of heating element 4 are preferably not less than 0.5 and less than 1.
In addition, when heater element (such as electrothermal tube) is installed on the underface of low thermal conductivity material layer 9 in fan ring-type,
The protrusion 11 that the top surface of bottom of the pot wall 1 is formed can be annular protrusion (i.e. the protrusion 11 can be circular ring shape, or
Fan annular with circular lance), referring to Fig. 6 and Fig. 7.
Preferably, with reference to Fig. 7 and Figure 11, the protrusion 11 formed on the top surface of bottom of the pot wall 1 is annular protrusion, protrusion
Portion 11 is formed as the first fan annular with the first circular lance, contact heating region of the heating element 4 in the bottom surface of bottom of the pot wall 1
Be formed as the second fan annular with the second circular lance, wherein, the arc chord angle of the first circular lance is less than the second circular lance
Arc chord angle.Specifically, the heating element 4 (such as electrothermal tube) of insulating pot is fan annular, the concentration heating region on bottom of the pot wall 1
The protrusion 11 of fan annular is correspondingly formed with, the wall superheat degree of bottom of the pot wall 1 is advantageously reduced, if but on bottom of the pot wall 1
Away from concentrating at heating region formed with the protrusion 11 that can fill low thermal conductivity material, these regions can be slowed down along bottom of the pot wall
1 horizontal heat transfer, i.e., these regional temperatures on bottom of the pot wall 1 rise slowly, are unfavorable for the horizontal by thermal balance of bottom of the pot wall 1.
Certainly, protrusion 11 has the first circular lance, also there is corresponding circular arc to cut in the annular groove that the bottom surface of bottom of the pot wall 1 is formed
Mouthful, that is, it is not required to fill low thermal conductivity material at the circular lance of annular groove, the low heat conduction system is produced in this way, can reduce
The materials of number material, so as to reduce the production cost of insulating pot.
Hereinafter the utility model is specifically described with some preferred embodiments.
In the first preferred embodiment, with reference to Fig. 2, Fig. 3 and Fig. 7, insulating pot includes the bottom of the pot wall that thickness is 0.5mm
1, and the bottom of the pot wall 1 is 304 stainless steel plate of food-grade；The top surface of bottom of the pot wall 1 is formed with the protrusion 11 to raise up, the protrusion
Portion 11 is formed as the first fan annular with the first circular lance, and the bottom surface of bottom of the pot wall 1 is correspondingly formed with recessed from the bottom surface
The annular groove of protrusion 11, and filled with the cricoid mica layer of fan, the bottom surface of bottom of the pot wall 1 and mica layer in the annular groove
Bottom surface be flush, the thickness of mica layer is 0.5mm；Electrothermal tube is formed as the second fan annular with the second circular lance, its
Coiling is installed on the underface of mica layer；Mica layer and electrothermal tube arranged concentric, the ring width of mica layer and the ring width phase of electrothermal tube
With (i.e. the ratio between ring width value of mica layer and electrothermal tube is 1), and the arc chord angle of the first circular lance is less than the second circular lance
Arc chord angle.It is, of course, also possible to add substrate 8 between bottom of the pot wall 1 and electrothermal tube, which is not less than 100W/ for thermal conductivity factor
The aluminium sheet of mk.
In second of preferred embodiment, with reference to Fig. 4, Fig. 5 and Fig. 6, bottom of the pot wall 1 is 304 stainless steel plate of food-grade, its
Thickness is 0.8mm；The top surface of bottom of the pot wall 1 is corresponding in circular protrusion 11, the bottom surface of bottom of the pot wall 1 formed with raising up
Ground is formed with the annular groove from the recessed protrusion 11 in the bottom surface, and the ceramic layer filled with annular shape in the annular groove,
The bottom surface of bottom of the pot wall 1 and the bottom surface of ceramic layer are flush, and the thickness of ceramic layer is 0.5mm；Electrothermal tube coiling is installed on ceramic layer
Underface, ceramic layer and electrothermal tube arranged concentric, the ring width of ceramic layer is less than the ring width of electrothermal tube and the ratio between ring width value is
0.5.It is, of course, also possible to set substrate 8 between bottom of the pot wall 1 and electrothermal tube, which is not less than 100W/m for thermal conductivity factor
The aluminium sheet of k.
In the third preferred embodiment, with reference to Fig. 2, Fig. 3 and Fig. 6, insulating pot includes the bottom of the pot wall that thickness is 0.4mm
1 and electrothermal tube, wherein, bottom of the pot wall 1 is 304 stainless steel plate of food-grade, in the top surface of bottom of the pot wall 1 formed with raising up in circle
Cricoid protrusion 11, the bottom surface of bottom of the pot wall 1 are correspondingly formed with the annular groove from the recessed protrusion 11 in the bottom surface, and at this
It is flush in annular groove filled with circular ceramic layer, the bottom surface of bottom of the pot wall 1 and the bottom surface of ceramic layer, the thickness of ceramic layer
For 2mm；Electrothermal tube coils the underface for being installed on ceramic layer, and ceramic layer and electrothermal tube arranged concentric, the ring width of ceramic layer be not small
In electrothermal tube ring width and the ratio between ring width value be 2.It is, of course, also possible to substrate 8, the base are set between bottom of the pot wall 1 and electrothermal tube
Plate 8 is not less than the copper coin of 100W/mk for thermal conductivity factor.
In the 4th kind of preferred embodiment, with reference to Fig. 4, Fig. 5 and Fig. 7, insulating pot includes the bottom of the pot wall that thickness is 0.6mm
1, and the bottom of the pot wall 1 is 304 stainless steel plate of food-grade；The top surface of bottom of the pot wall 1 is formed with the protrusion 11 to raise up, the protrusion
Portion 11 is formed as the first fan annular with the first circular lance, and the bottom surface of bottom of the pot wall 1 is correspondingly formed with recessed from the bottom surface
The annular groove of protrusion 11, and filled with the cricoid mica layer of fan, the bottom surface of bottom of the pot wall 1 and mica layer in the annular groove
Bottom surface be flush, the thickness of mica layer is 2mm；Electrothermal tube is formed as the second fan annular with the second circular lance, its disk
Around the underface for being installed on mica layer；Mica layer and electrothermal tube arranged concentric, the ring width of mica layer be less than the ring width of electrothermal tube and
The ratio between ring width value is 0.5, in addition, the arc chord angle of the first circular lance is less than the arc chord angle of the second circular lance.It is, of course, also possible to
Substrate 8 is set between bottom of the pot wall 1 and electrothermal tube, which is not less than the copper coin of 100W/mk for thermal conductivity factor.
In the 5th kind of preferred embodiment, with reference to Fig. 2, Fig. 3 and Fig. 8, insulating pot includes the bottom of the pot wall that thickness is 0.5mm
1, and the bottom of the pot wall 1 is 304 stainless steel plate of food-grade；Layout area of the protrusion 11 on the top surface of bottom of the pot wall 1 is annular regions
Domain, is equipped with the multiple protrusions 11 being along the circumferential direction spaced in the circle ring area, and protrusion 11 is to radially extend
The linear protrusion of radial direction；The bottom surface of bottom of the pot wall 1 is correspondingly formed with the groove from the linear protrusion of the recessed radial direction in the bottom surface, and
Mica layer is filled with groove, the bottom surface of bottom of the pot wall 1 and the bottom surface of mica layer are flush, and the thickness of mica layer is 1mm；Electric heating
Pipe dish is around the underface for being installed on mica layer, mica layer and electrothermal tube arranged concentric, and the ring width of mica layer is not less than electrothermal tube
The ratio between ring width and ring width value are 1.5.It is, of course, also possible to set substrate 8 between bottom of the pot wall 1 and electrothermal tube, which is heat conduction
Coefficient is not less than the copper coin of 100W/mk.
In the 6th kind of preferred embodiment, with reference to Fig. 2, Fig. 3 and Fig. 9, bottom of the pot wall 1 is 304 stainless steel plate of food-grade, its
Thickness is 0.8mm；Layout area of the protrusion 11 on the top surface of bottom of the pot wall 1 is circle ring area, is equipped with the circle ring area
Along the extension of string of a musical instrument direction and multiple linear protrusions of parallel interval；The bottom surface of bottom of the pot wall 1 is correspondingly formed with from the bottom surface
The groove of recessed linear protrusion, and ceramic layer is filled with groove, the bottom surface of bottom of the pot wall 1 and the bottom surface of ceramic layer are mutually neat
Flat, the thickness of ceramic layer is 1.5mm；Electrothermal tube coils the underface for being installed on ceramic layer, ceramic layer and electrothermal tube arranged concentric,
The ring width of ceramic layer is identical with the ring width of electrothermal tube (i.e. the ratio between ring width value of ceramic layer and electrothermal tube is 1).It is, of course, also possible to
Substrate 8 is set between bottom of the pot wall 1 and electrothermal tube, which is not less than the copper coin of 100W/mk for thermal conductivity factor.
In the 7th kind of preferred embodiment, with reference to Fig. 4, Fig. 5 and Fig. 8, insulating pot includes the bottom of the pot wall that thickness is 0.4mm
1 and electrothermal tube, wherein, bottom of the pot wall 1 is 304 stainless steel plate of food-grade, layout area of the protrusion 11 on the top surface of bottom of the pot wall 1
For circle ring area, the multiple protrusions 11 being along the circumferential direction spaced are equipped with the circle ring area, and protrusion 11 is edge
The linear protrusion of radial direction radially extended；The bottom surface of bottom of the pot wall 1 is correspondingly formed with from the linear protrusion of the recessed radial direction in the bottom surface
Groove, and ceramic layer is filled with groove, the bottom surface of bottom of the pot wall 1 and the bottom surface of ceramic layer are flush, the thickness of ceramic layer
For 1mm；Electrothermal tube coils the underface for being installed on ceramic layer, and ceramic layer and electrothermal tube arranged concentric, the ring width of ceramic layer are less than
The ring width and the ratio between ring width value of electrothermal tube are 0.5.It is, of course, also possible to substrate 8, the base are set between bottom of the pot wall 1 and electrothermal tube
Plate 8 is not less than the copper coin of 100W/mk for thermal conductivity factor.
In the 8th kind of preferred embodiment, with reference to Fig. 4, Fig. 5 and Fig. 9, insulating pot includes the bottom of the pot wall that thickness is 0.6mm
1, and the bottom of the pot wall 1 is 304 stainless steel plate of food-grade；Layout area of the protrusion 11 on the top surface of bottom of the pot wall 1 is annular regions
Domain, is equipped with multiple linear protrusions along the extension of string of a musical instrument direction and parallel interval in the circle ring area；The bottom surface of bottom of the pot wall 1
The groove from the recessed linear protrusion in the bottom surface is correspondingly formed with, and mica layer, the bottom of bottom of the pot wall 1 are filled with groove
Face and the bottom surface of mica layer are flush, and the thickness of mica layer is 1.5mm；Electrothermal tube coils the underface for being installed on mica layer, cloud
Mother layer and electrothermal tube arranged concentric, it is 0.5 that the ring width of mica layer, which is less than the ring width of electrothermal tube and the ratio between ring width value,.Certainly, may be used also
To set substrate 8 between bottom of the pot wall 1 and electrothermal tube, which is not less than the copper coin of 100W/mk for thermal conductivity factor.
The insulating pot of eight kinds of embodiments of the above is during liquid water heats in pot, by bottom of the pot wall 1
Bottom surface groove in filling thermal conductivity factor be not more than the low thermal conductivity material of 40W/mk, and the low thermal conductivity material position
In the surface of heating element 4, the heat conduction along 1 thickness direction of bottom of the pot wall can be slowed down, the transverse direction for being conducive to bottom of the pot wall 1 is heated
Weighing apparatus, reduces the wall superheat degree of bottom of the pot wall 1, and then can effectively avoid the intensive phenomenon of the local steam bubble on bottom of the pot wall 1, reaches aobvious
Write the effect of noise reduction.
Specific embodiment 1：Using the insulating pot structure shown in Fig. 2, Fig. 3 and Fig. 6, i.e., bottom of the pot wall 1 for food-grade 304 not
Become rusty steel plate, its thickness is 0.5mm；Bottom of the pot wall 1 top surface formed with circular protrusion 11, the bottom surface phase of bottom of the pot wall 1
Ground is answered formed with the annular groove from the recessed protrusion 11 in the bottom surface, and filled with circular mica in the annular groove
Layer, the bottom surface of bottom of the pot wall 1 and the bottom surface of mica layer are flush；Bottom of the pot wall 1 is 304 stainless steel plates of the food-grade of 0.5mm thickness,
The bottom surface of bottom of the pot wall 1 is connected with aluminium sheet, and electrothermal tube is installed on the bottom surface of the aluminium sheet and positioned at the underface of mica layer.
Wherein, the heating power of electrothermal tube：1800W, water in pot：1.7L.
Testing procedure：
1) water of peak level, is put into pot；
2), cooling-water temperature sensor is placed in the middle of the height of water level at kettle center；
3), timing measuring is started by "start" button；
4) timing measuring is stopped when, water temperature rises to 80 DEG C in pot；
5) noise figure of sound power value≤45dB, is rejected, A weighteds are carried out to test noise value, take average acoustical power conduct
Decision content.
Obtain noise data such as table 1 below during insulating pot work.
Table 1：Noise data table
| Thickness/mm | The ratio between ring width value | Maximum acoustical power/dB | Average acoustical power/dB |
| 0.5 | 0.5 | 64.6 | 61.1 |
| 0.5 | 1 | 63.2 | 59.4 |
| 0.5 | 1.5 | 61.7 | 58.2 |
| 0.5 | 2 | 61.1 | 57.3 |
| 1 | 0.5 | 60.3 | 55.4 |
| 1 | 1 | 58.5 | 54.1 |
| 1 | 1.5 | 57.2 | 52.9 |
| 1 | 2 | 56.4 | 52.1 |
| 1.5 | 0.5 | 57.2 | 52.6 |
| 1.5 | 1 | 55.9 | 51.3 |
| 1.5 | 1.5 | 54.7 | 50.1 |
| 1.5 | 2 | 54.0 | 49.4 |
| 2 | 0.5 | 53.1 | 50.8 |
| 2 | 1 | 51.8 | 49.6 |
| 2 | 1.5 | 50.5 | 48.2 |
| 2 | 2 | 49.7 | 47.5 |
Wherein, thickness is that the ratio between the thickness of mica layer (as low thermal conductivity material layer 9), ring width value is mica layer and electricity
The ratio between ring width value of heat pipe (as heating element 4).Specifically, low thermal conductivity material layer 9 is thicker, is more conducive to slow down along pot
The heat conduction of 1 thickness direction of bottom wall, then the wall superheat degree of bottom of the pot wall 1 is lower, is also more conducive to noise reduction.In addition, low heat conduction
Index material 9 and the ratio between the ring width value of heating element 4 are bigger, are more conducive to slow down along the horizontal heat transfer of bottom of the pot wall 1, then electric
Level of noise caused by kettle work is also lower.
Comparative example 1：Using the insulating pot structure shown in Figure 10, wherein, the bottom of the pot wall 1 of insulating pot is horizontal bottom of the pot wall, i.e.,
Protrusion 11 is formed without on the top surface of bottom of the pot wall 1, is correspondingly also formed without groove in the bottom surface of bottom of the pot wall 1, certainly, should
Insulating pot does not just contain low thermal conductivity material layer 9 yet, in addition, other experiment parameters are consistent with embodiment 1.
Test result：Maximum sound power value when obtaining insulating pot work is 68.4dB, and average sound power value is 65.2dB.
Comprehensive Correlation embodiment 1 and comparative example 1 understand that the bottom of the pot wall 1 compared to insulating pot is horizontal bottom of the pot wall 1, in pot
The top surface of bottom wall 1 forms protrusion 11, and the bottom surface of bottom of the pot wall 1 correspondingly forms fluted, filling low thermal conductivity in the groove
Material, and heating element 4 is arranged at the underface of the low thermal conductivity material, its maximum sound power value produced is significantly less than
68.4dB, average sound power value are also significantly less than 65.2dB, and therefore, the groove formed on bottom of the pot wall 1 is located at heating element 4
Surface, and low thermal conductivity material is filled with the groove, the maximum acoustical power peace sent when insulating pot can be made to work
Equal sound power value all reduces, so as to be finally reached the effect of optimization noise reduction.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on, should be included in the utility model
Protection domain within.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, it can be combined by any suitable means, in order to avoid unnecessary repetition, the utility model is to each
The possible combination of kind no longer separately illustrates.
In addition, it can also be combined between a variety of embodiments of the utility model, as long as it is not disobeyed
The thought of the utility model is carried on the back, it should equally be considered as content disclosed in the utility model.
Claims (12)
1. a kind of insulating pot, it is characterised in that the insulating pot includes bottom of the pot wall (1) and heating element (4), the bottom of the pot wall
(1) it is grade metal plate of the thickness not less than 0.4mm and no more than 0.8mm, the top surface of the bottom of the pot wall (1) is formed with upward
Raised protrusion (11), the bottom surface of the bottom of the pot wall (1) is correspondingly formed with from the recessed protrusion (11) in the bottom surface
In groove, filled with low thermal conductivity material of the thermal conductivity factor no more than 40W/mk to form low heat conduction system in the groove
Number material layer (9), the heating element (4) annularly coil the underface for being installed on the low thermal conductivity material layer (9).
2. insulating pot according to claim 1, it is characterised in that the thermal conductivity factor of the low thermal conductivity material layer (9)
No more than 20W/mk, the thickness of the low thermal conductivity material layer (9) not less than 0.5mm and is not more than 2mm.
3. insulating pot according to claim 1, it is characterised in that the low thermal conductivity material layer (9) for mica layer or
Ceramic layer.
4. insulating pot according to claim 1, it is characterised in that the bottom surface of the bottom of the pot wall (1) and the low heat conduction system
The bottom surface of number material layer (9) flushes.
5. insulating pot according to claim 1, it is characterised in that the protrusion (11) is punch forming, the bottom of the pot
The bottom surface of wall (1) is formed with corresponding stamped groove.
6. insulating pot according to claim 1, it is characterised in that the top surface of the bottom of the pot wall (1), which is equipped with, to be used to arrange
The circle ring area of the protrusion (11)；
Wherein, the multiple protrusions (11) being along the circumferential direction spaced, the protrusion are equipped with the circle ring area
(11) it is the linear protrusion of radial direction radially extended, the annular heating element (4) and the circle ring area arranged concentric；
Alternatively, multiple linear protrusions along the extension of string of a musical instrument direction and parallel interval are equipped with the circle ring area, it is annular
The heating element (4) and the circle ring area arranged concentric；
Alternatively, the protrusion (11) is annular protrusion, the annular heating element (4) and the annular protrusion are concentric
Arrangement.
7. insulating pot according to claim 6, it is characterised in that the inner peripheral of the low thermal conductivity material layer (9) is not
More than the inner peripheral of the heating element (4), and the outer peripheral edge of the low thermal conductivity material layer (9) is not less than the heating unit
The outer peripheral edge of part (4).
8. insulating pot according to claim 7, it is characterised in that the low thermal conductivity material layer (9) and the heating
Element (4) arranged concentric, the ring width of the low thermal conductivity material layer (9) are not less than the ring width and ring of the heating element (4)
The ratio between width values are not more than 2.
9. insulating pot according to claim 6, it is characterised in that the inner peripheral of the low thermal conductivity material layer (9) is big
Inner peripheral in the heating element (4), and the outer peripheral edge of the low thermal conductivity material layer (9) is less than the heating element
(4) outer peripheral edge.
10. insulating pot according to claim 9, it is characterised in that the low thermal conductivity material layer (9) and the heating
Element (4) arranged concentric, the ring width of the low thermal conductivity material layer (9) are less than the ring width and ring width of the heating element (4)
The ratio between value is not less than 0.5.
11. insulating pot according to claim 1, it is characterised in that the protrusion (11) is annular protrusion, the ring
Shape protrusion is formed as the first fan annular with the first circular lance, and the heating element (4) is at the bottom of the bottom of the pot wall (1)
The contact heating region in face is formed as the second fan annular with the second circular lance, and the arc chord angle of first circular lance is small
Arc chord angle in second circular lance.
12. insulating pot according to claim 1, it is characterised in that the insulating pot is further included positioned at the bottom of the pot wall (1)
Substrate (8) between the heating element (4), the substrate (8) are not less than the high heat conduction system of 100W/mk for thermal conductivity factor
Number metallic plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720474201.4U CN207341623U (en) | 2017-04-28 | 2017-04-28 | Insulating pot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720474201.4U CN207341623U (en) | 2017-04-28 | 2017-04-28 | Insulating pot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207341623U true CN207341623U (en) | 2018-05-11 |
Family
ID=62361186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720474201.4U Active CN207341623U (en) | 2017-04-28 | 2017-04-28 | Insulating pot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207341623U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019080590A1 (en) * | 2017-10-27 | 2019-05-02 | 佛山市顺德区美的电热电器制造有限公司 | Inner container assembly and liquid heater |
-
2017
- 2017-04-28 CN CN201720474201.4U patent/CN207341623U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019080590A1 (en) * | 2017-10-27 | 2019-05-02 | 佛山市顺德区美的电热电器制造有限公司 | Inner container assembly and liquid heater |
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