CN202445835U - Heating chassis and electric kettle - Google Patents
Heating chassis and electric kettle Download PDFInfo
- Publication number
- CN202445835U CN202445835U CN2011202573885U CN201120257388U CN202445835U CN 202445835 U CN202445835 U CN 202445835U CN 2011202573885 U CN2011202573885 U CN 2011202573885U CN 201120257388 U CN201120257388 U CN 201120257388U CN 202445835 U CN202445835 U CN 202445835U
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- heating
- chassis
- heat
- kettle body
- heat transfer
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 134
- 239000000758 substrate Substances 0.000 claims abstract description 32
- 239000011248 coating agent Substances 0.000 claims abstract description 23
- 238000000576 coating method Methods 0.000 claims abstract description 23
- 239000000956 alloy Substances 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 229910045601 alloy Inorganic materials 0.000 abstract description 9
- 238000005485 electric heating Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 238000004080 punching Methods 0.000 abstract description 3
- 238000007650 screen-printing Methods 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000005275 alloying Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000077 insect repellent Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to a liquid heating device, in particular to a heating chassis and an electric kettle. This electrical heating chassis includes heat transfer substrate, is equipped with heating element on this heat transfer substrate, and this heating element includes first power connection end and second power connection end, wherein: the heat transfer substrate is provided with an insulating heat conduction coating, and the heating element is a heating sheet made of an electrothermal alloy material and arranged on the insulating heat conduction coating. The utility model discloses a piece that generates heat only needs to obtain with electric heat alloy thin slice punching press cutting, and manufacturing cost compares with the thick film heating plate that needs make through expensive professional equipment screen printing, and the cost is cheaper, and nevertheless should generate heat the piece also have with the thick film heating plate similar rate of heating fast, the heating is even, simple structure, occupation space are good performance such as few. Therefore, the utility model discloses can solve the problem that two kinds of electric heating chassis techniques exist now betterly. The electric kettle comprises a kettle body and the electric heating chassis.
Description
Technical field
The utility model relates to a kind of liquid heating, specifically is a kind of heating chassis and electric kettle.
Background technology
Electric kettle usually adopts the chassis mode of heating at present, and following two kinds of versions are arranged with regard to this chassis heating arrangement usually:
(1) heat-generating pipe chassis.The chassis of this structure comprises the metal card, and the metal card is provided with heat-generating pipe.The heat of heat-generating pipe carries out liquid heat through the bottom that the metal card passes to kettle kettle body again.Heat-generating pipe integral body is circular, is enclosed with heating wire in the aluminum shell.It is simple in structure that heat-generating pipe seems, but in fact operation is quite complicated, and typical heat-generating pipe manufacturing process comprises and surpasses 40 procedures, and not only energy consumption is bigger in manufacture process, but also can use multiple harmful substances, therefore is not the product of energy-conserving and environment-protective.
(2) thick film heating chassis.This structural chassis is printed materials such as dielectric, heating resistor, conductor, glass protection glaze through the thick film silk-screen printing technique on stainless steel or ceramic substrate, form through high temperature sintering again.Temperature rose soon when heated on this chassis, heat capacity, and temperature fluctuation is little, and the water that burns one glass of 250ML only needs 20 seconds, and the temperature-responsive time is significantly less than 60 seconds the temperature-responsive time of heat-generating pipe chassis of transmission.In addition, thick film heating chassis also has plurality of advantages.For example, less being applicable in the confined space that take up room used; Service life is longer than the heat-generating pipe chassis of transmission; Efficiency of utilization can reach 70-95%, and is higher than traditional heat-generating pipe chassis efficiency of heating surface.Yet the present price in thick film heating chassis is still comparatively expensive, make be equipped with this chassis the electric kettle price competitiveness a little less than, be unfavorable for the popularization of product.
Therefore a kind of both energy-conserving and environment-protective are provided, manufacturing process is simple, and having the relatively low heating chassis of better electrical heating properties and cost is technical issues that need to address with the electric kettle with this heating chassis.
The utility model content
The technical problem that the utility model solves provides a kind of both energy-conserving and environment-protective, and manufacturing process is simple, has relatively low heating chassis of better electrical heating properties and cost and the electric kettle with this heating chassis.
For solving the problems of the technologies described above; First technical scheme that the utility model adopts is: a kind of electrical heating chassis; Comprise heat transfer substrate, this heat transfer substrate is provided with heater element, and this heater element comprises first power connector end and second source link; Wherein: said heat transfer substrate is provided with the insulating heat-conductive coating, and said heater element is the heating sheet of processing with the electrothermal alloy material that is arranged on this insulating heat-conductive coating.The electrothermal alloy material is a kind of alloy material that is used to make heating.When electric current passes through alloying element, produce Joule effect, electric energy is transformed into heat energy.The electrothermal alloy product is made generally in thin silk material, circle wire rod, sheet metal band, under specific (special) requirements, also can be made into tubing and foundry goods.Electrothermal alloy generally need possess following performance requirement: (1) at high temperature should have good non-oxidizability (or anti-medium atmosphere aggressivity) and enough creep-resistant properties.(2) higher resistivity should be arranged, temperature coefficient of resistivity is low as far as possible, can bear bigger electric current.(3) excellent metallurgical production technology performance should be arranged and make processing characteristics.
One of improve: two power connector ends of said heating sheet are located at the outer rim of heating sheet.Two power connector ends here are meant that the heating sheet connects the two poles of the earth of electricity, and each link can comprise more than one contact.This two power connector end connects heating sheet heating behind the two poles of the earth of power supply.The heating sheet of this structure can make things convenient for the installation of integral type temperature controller and split type temperature controller.When mounted; To generate heat the sheet pressing and fixing on the insulating heat-conductive coating through fixed structure; Two power connector ends of heating sheet are near the edge of fixed structure; Therefore needn't offer special power supply connecting hole on the fixed structure, directly be connected with power connector end power connector end is drawn out to outside the fixed structure with electric wire.Existing integral type temperature controller or split type temperature controller can be directly installed on this fixed structure, and the power connector end of heating sheet then directly is connected with temperature controller through electric wire from heating sheet outer rim.Wherein, said integral type temperature controller is meant the temperature controller of electric connector and temperature controller one; Said split type temperature controller is meant the separately independent temperature controller that is provided with of electric connector and temperature controller.
Two of improvement: said heating sheet is formed by continuous heating tape, is swirl shape, and two free ends of this heating tape are said two power connector ends, and wherein a free end is positioned at the middle part of said heating sheet, and another free end is positioned at the outer rim of said heating sheet.The shape of this spiral vortex type heating sheet is similar to the shape of tray type structure mosquito-repellent incense.During fabrication, the electrothermal alloy thin slice that a slice is complete can obtain two identical screw type heating sheets through punching press, helps producing the same heating sheet of specification, reduces the cost of large-scale production.
Three of improvement: also be provided with on the said insulating heat-conductive coating and the fixing heat-insulating layer of said heat transfer substrate.This heat-insulating layer is used to increase the security on electrical heating chassis, prevents electric leakage and prevents that heat is passed to other non-heating parts.
Four of improvement: said heating sheet thickness is 0.02-0.5mm.
Five of improvement: the electrothermal alloy material that said heating sheet adopts is the 0Cr25A15A material.
Six of improvement: the resistance value scope of said heating sheet is 16-480 ohm.
Second technical scheme that the utility model adopts is: a kind of electric kettle, comprise kettle body and the electrical heating chassis of being located at kettle body bottom, and wherein: said electrical heating chassis is first technical scheme or the described electrical heating of its improvement project chassis.
One of improve: said heat transfer substrate is the kettle body chassis that is positioned at said kettle body bottom; The liquid that adds in the said kettle body is directly heated on this kettle body chassis; The end face on this kettle body chassis directly contacts with heating liquid with liquid in the said kettle body, and said insulating heat-conductive coating is arranged on the bottom surface on this kettle body chassis.
Two of improvement: said heat transfer substrate is the panel that is heated that is arranged on said kettle body bottom, and this panel that is heated is fixedly connected with said kettle body bottom, and said insulating heat-conductive coating is coated on this panel that is heated.
Compared with prior art, beneficial effect is: on the one hand, heating sheet itself conducts electricity, and therefore need insulate in the heat transfer substrate surface of contact with it, prevents electric leakage; On the other hand, because the heating sheet electric heating capacity of processing with the electrothermal alloy material is lower, intensification is exceedingly fast, if the heat in heating sheet somewhere can not in time pass, the sheet that then can cause generating heat causes damage in this place's fusing.Therefore the surface of heat transfer substrate need have the good heat transfer performance, and the heating sheet need promptly combine with the heat transfer substrate surface, in time passes with the heat of the sheet that will generate heat.The insulating heat-conductive coating that the utility model is provided with on heat transfer substrate can solve the heating sheet and need prevent to leak electricity and the problem of in time conducting heat, and the sheet that will generate heat is placed at and can solves the heating sheet in the insulating coating because of the hot-spot of not being close to heat transfer component and the causing problem that fuses.In addition; The heating sheet of the utility model only needs can obtain with electrothermal alloy thin slice die cut; Manufacturing cost with need compare through the thick film heating plate of expensive dedicated equipment serigraphy manufacturing; Cost is cheaper, however that this heating sheet also has is fast with the similar firing rate of thick film heating plate, homogeneous heating, simple in structure, premium properties such as occupy little space.Therefore the utility model can solve the problem that existing two kinds of electrical heating chassis technologies exist preferably.
Description of drawings
Fig. 1 is the structural representation of embodiment 1 electric kettle;
Fig. 2 is the A part enlarged diagram of Fig. 1;
Fig. 3 is the structural representation of the heating sheet of embodiment 1;
Fig. 4 is the STRUCTURE DECOMPOSITION sketch map of embodiment 1 electric kettle;
Fig. 5 is the structural representation of the heating sheet of embodiment 2.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Embodiment 1
As shown in Figure 1, the electric kettle of present embodiment comprises kettle body 80 and the electrical heating chassis 90 of being located at kettle body 80 bottoms.
Like Fig. 2, shown in Figure 3, this electrical heating chassis 90 comprises heat transfer substrate 10, and this heat transfer substrate 10 is provided with heater element.This heat transfer substrate 10 is provided with insulating heat-conductive coating 11, and said heater element is the heating sheet of processing with the electrothermal alloy material 20 that is arranged on this insulating heat-conductive coating 11, and this heating sheet 20 comprises first power connector end 21 and second source link 22.
The electrothermal alloy material is a kind of alloy material that is used to make heating.When electric current passes through alloying element, produce Joule effect, electric energy is transformed into heat energy.The electrothermal alloy product is made generally in thin silk material, circle wire rod, sheet metal band, under specific (special) requirements, also can be made into tubing and foundry goods.Electrothermal alloy generally need possess following performance requirement: (1) at high temperature should have good non-oxidizability (or anti-medium atmosphere aggressivity) and enough creep-resistant properties.(2) higher resistivity should be arranged, temperature coefficient of resistivity is low as far as possible, can bear bigger electric current.(3) excellent metallurgical production technology performance should be arranged and make processing characteristics.
On the one hand, heating sheet 20 itself conducts electricity, and therefore need insulate in heat transfer substrate 10 surfaces of contact with it, prevents electric leakage; On the other hand, because the heating sheet 20 electric heating capacity of processing with the electrothermal alloy material are lower, intensification is exceedingly fast, if the heat in heating sheet 20 somewheres can not in time pass, the sheet 20 that then can cause generating heat causes damage in this place's fusing.Therefore the surface of heat transfer substrate 10 need have the good heat transfer performance, and heating sheet 20 need promptly combine with heat transfer substrate 10 surfaces, in time passes with the heat of the sheet 20 that will generate heat.The insulating heat-conductive coating 11 that present embodiment is provided with on heat transfer substrate 10 can solve heating sheet 20 and need prevent to leak electricity and the problem of in time conducting heat, and the sheet 20 that will generate heat is placed at and can solves heating sheet 20 in the insulating coating because of the hot-spot of not being close to heat transfer component and the causing problem that fuses.In addition; 20 need of the heating sheet of present embodiment can obtain with electrothermal alloy thin slice die cut; Manufacturing cost with need compare through the thick film heating plate of expensive dedicated equipment serigraphy manufacturing; Cost is cheaper, however that this heating sheet 20 also has is fast with the similar firing rate of thick film heating plate, homogeneous heating, simple in structure, premium properties such as occupy little space.Therefore the utility model can solve the problem that existing two kinds of electrical heating chassis 90 technology exist preferably.
As shown in Figure 3, two power connector ends of this heating sheet 20 are located at the outer rim of heating sheet 20.Two power connector ends here are meant that heating sheet 20 connects the two poles of the earth of electricity, and each link can comprise more than one contact.This two power connector end connects heating sheet 20 heatings behind the two poles of the earth of power supply.The heating sheet 20 of this structure can make things convenient for the installation of integral type temperature controller and split type temperature controller.When mounted; To generate heat sheet 20 pressing and fixing on insulating heat-conductive coating 11 through fixed structure; Two power connector ends of heating sheet 20 are near the edge of fixed structure; Therefore needn't offer special power supply connecting hole on the fixed structure, directly be connected with power connector end power connector end is drawn out to outside the fixed structure with electric wire.Existing integral type temperature controller or split type temperature controller can be directly installed on this fixed structure, and the power connector end of heating sheet 20 then directly is connected with temperature controller through electric wire from heating sheet 20 outer rims.Wherein, the integral type temperature controller is meant the temperature controller of electric connector and temperature controller one; Split type temperature controller is meant the separately independent temperature controller that is provided with of electric connector and temperature controller.
Like Fig. 2 and shown in Figure 4, also be provided with the heat-insulating layer of fixing with heat transfer substrate 10 12 on this insulating heat-conductive coating 11.This heat transfer substrate 10 is provided with fixture 13, and this thermal insulation layer is provided with the brace 121 that is fixedly connected with this fixture 13.This heat-insulating layer 12 is used to increase the security on electrical heating chassis 90, prevents electric leakage and prevents that heat is passed to other non-heating parts.
In addition, heating sheet 20 thickness of present embodiment are 0.02-0.5mm, and the electrothermal alloy material of employing is the 0Cr25A15A material.The resistance value scope of heating sheet 20 is 16-480 ohm.
In addition; The heat transfer substrate 10 of this enforcement is for being positioned at the kettle body chassis (see figure 2) of kettle body 80 bottoms; The liquid that adds in the kettle body 80 is directly heated on this kettle body chassis; The end face on this kettle body chassis directly contacts with heating liquid with liquid in the kettle body 80, and insulating heat-conductive coating 11 is arranged on the bottom surface on this kettle body chassis.Be that heat transfer substrate 10 is parts of kettle body 80, the direct liquid in the heating kettle body 80.End face here and orientation, bottom surface are as the criterion with the orientation in the accompanying drawing.
Embodiment 2
Difference in the face of present embodiment and embodiment 1 describes down: as shown in Figure 5; The heating sheet 20 ' of present embodiment is formed by continuous heating tape; Be swirl shape; Two free ends of this heating tape are two power connector ends, and wherein a free end 21 ' is positioned at the middle part of heating sheet 20 ', and another free end 22 ' is positioned at the outer rim of heating sheet.The shape of this spiral vortex type heating sheet is similar to the shape of tray type structure mosquito-repellent incense.During fabrication, the electrothermal alloy thin slice that a slice is complete can obtain two identical screw type heating sheets through punching press, helps producing the same heating sheet of specification, reduces the cost of large-scale production.
In addition, heat transfer substrate is the panel that is heated (figure does not show) that is arranged on kettle body bottom, and this panel that is heated is fixedly connected with kettle body bottom, and the insulating heat-conductive coating is coated on this panel that is heated.
Claims (10)
1. electrical heating chassis; Comprise heat transfer substrate; This heat transfer substrate is provided with heater element; This heater element comprises first power connector end and second source link, it is characterized in that: said heat transfer substrate is provided with the insulating heat-conductive coating, and said heater element is the heating sheet of processing with the electrothermal alloy material that is arranged on this insulating heat-conductive coating.
2. electrical heating according to claim 1 chassis is characterized in that: two power connector ends of said heating sheet are located at the outer rim of heating sheet.
3. electrical heating according to claim 1 chassis; It is characterized in that: said heating sheet is formed by continuous heating tape; Be swirl shape; Two free ends of this heating tape are said two power connector ends, and wherein a free end is positioned at the middle part of said heating sheet, and another free end is positioned at the outer rim of said heating sheet.
4. electrical heating according to claim 1 chassis is characterized in that: also be provided with on the said insulating heat-conductive coating and the fixing heat-insulating layer of said heat transfer substrate.
5. electrical heating according to claim 1 chassis is characterized in that: said heating sheet thickness is 0.02-0.5mm.
6. electrical heating according to claim 1 chassis is characterized in that: the electrothermal alloy material that said heating sheet adopts is the 0Cr25A15A material.
7. electrical heating according to claim 1 chassis is characterized in that: the resistance value scope of said heating sheet is 16-480 ohm.
8. an electric kettle comprises kettle body and the electrical heating chassis of being located at kettle body bottom, and it is characterized in that: said electrical heating chassis is the arbitrary described electrical heating of claim 1 to 7 chassis.
9. electric kettle according to claim 8; It is characterized in that: said heat transfer substrate is the kettle body chassis that is positioned at said kettle body bottom; The liquid that adds in the said kettle body is directly heated on this kettle body chassis; The end face on this kettle body chassis directly contacts with heating liquid with liquid in the said kettle body, and said insulating heat-conductive coating is arranged on the bottom surface on this kettle body chassis.
10. electric kettle according to claim 8 is characterized in that: said heat transfer substrate is the panel that is heated that is arranged on said kettle body bottom, and this panel that is heated is fixedly connected with said kettle body bottom, and said insulating heat-conductive coating is coated on this panel that is heated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202573885U CN202445835U (en) | 2011-07-20 | 2011-07-20 | Heating chassis and electric kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202573885U CN202445835U (en) | 2011-07-20 | 2011-07-20 | Heating chassis and electric kettle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202445835U true CN202445835U (en) | 2012-09-26 |
Family
ID=46861736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202573885U Expired - Fee Related CN202445835U (en) | 2011-07-20 | 2011-07-20 | Heating chassis and electric kettle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202445835U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102885583A (en) * | 2011-07-20 | 2013-01-23 | 美的集团有限公司 | Electric heating chassis and electric kettle |
| CN106982478A (en) * | 2017-02-27 | 2017-07-25 | 李旭丹 | Spontaneous heating metal composite pot |
-
2011
- 2011-07-20 CN CN2011202573885U patent/CN202445835U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102885583A (en) * | 2011-07-20 | 2013-01-23 | 美的集团有限公司 | Electric heating chassis and electric kettle |
| CN106982478A (en) * | 2017-02-27 | 2017-07-25 | 李旭丹 | Spontaneous heating metal composite pot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: MIDEA GROUP CO., LTD. Free format text: FORMER NAME: MEIDI GROUP CO. LTD. |
|
| CP03 | Change of name, title or address |
Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28 Patentee after: MIDEA GROUP Co.,Ltd. Address before: 528311, Guangdong, Foshan Town, Shunde District, Beijiao, 6 beautiful avenue, Midea headquarters building, B28 science and technology management department Patentee before: Midea Group |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20200720 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |