CN1401287A - Vacuum electric heat-insulation vessel and vacuum welding process - Google Patents
Vacuum electric heat-insulation vessel and vacuum welding process Download PDFInfo
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- CN1401287A CN1401287A CN 02139038 CN02139038A CN1401287A CN 1401287 A CN1401287 A CN 1401287A CN 02139038 CN02139038 CN 02139038 CN 02139038 A CN02139038 A CN 02139038A CN 1401287 A CN1401287 A CN 1401287A
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- electric heating
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Abstract
An electrothermal vacuum-insulating utensil is composed of internal container, external shell, electrothermal element, temp controller for container, external shell, electrothermal element, temp controller for controlling the electrothermal element and temp sensor. It is characterized by that a vacuum cavity is between internal container and externall shell, and said external shell has a pit for arranging said temp sensor in it and holding the internal container. Its advantages are high thermal efficiency and correct temp control.
Description
Technical field
The present invention relates to the electric heating thermal insulation vessel, especially relate to stainless-steel vacuum electric heating thermal insulation vessel, be used for cup, bottle, kettle, pot etc.
Background technology
General vacuum insulating utensils of stainless-steel, as vacuum cup, Vacuum insulation bottle etc., only have the vacuum heat-preserving effect, do not have heating function, and common on the market electric heating utensil, comprise electric heat insulating pot, electric cooker etc., their insulation construction generally all adopts solid foamed material or fiber heat preservation material as thermal insulation layer, the clear-cut insulation layer that does not just have truly that has, and heat insulation effect is poor.
Patent Office of the People's Republic of China discloses the vacuum heat-preserving electric heating utensil patent that a kind of patent No. is 95214879.X on May 15th, 1996, this patent combines above-mentioned two kinds of schemes, it will be incubated with two kinds of functions of electrical heating and be combined as a whole outwardly, but in fact because its sensor places the inner bag outside in the vacuum chamber, and the lead-in wire of sensor will pass through outer courage, and pass the vacuum layer of inner bag and outer courage, when vacuumizing, will temperature rise to more than 500 ℃, cause sensor and line scaling loss, therefore heating can be damaged in the process that vacuumizes, this patent does not have to propose how to solve outer wall (or bottom) the welded seal scheme that electrothermal tube (or lead-out wire) passes vacuum utensil in addition, causes this patent to implement.
Summary of the invention
The objective of the invention is to propose a kind of vacuum heat-preserving effect that promptly has, have electric heating function again, also possess the vacuum electric heating insulating utensils of function of temperature control simultaneously in order to solve the deficiency that the above-mentioned background technology exists.
For achieving the above object, the present invention adopts following technical scheme.A kind of vacuum electric heating insulating utensils, comprise inner bag, outer courage, heating, temperature controller and temperature sensor, the detected temperature signal of temperature sensor passes to temperature controller, temperature controller is according to the working condition of said temperature signal controlling heating, have vacuum cavity between inner bag and the outer courage, heating is arranged on the inner bag surface in the vacuum cavity, it is characterized in that described outer courage is provided with the nest hole, the bottom in this nest hole contacts with inner bag, and described temperature sensor places in this nest hole.
In such scheme, described heating adopts electric heating tube, the two ends of electric heating tube are fixed in two holes on the outer courage by fixed head, two holes that can put into the electric heating tube two ends are arranged in the described fixed head, these two borehole jacks are at the electric heating tube two ends in the fixed head, fixed head is in the same place with the electric heating tube seal welding with outer gall bladder wall, and temperature controller places above the fixed head or outer courage bottom.
The present invention utilizes metal inner tube to heat characteristics easily, heating element heater is set in vacuum chamber, greatly improved the efficiency of heating surface, make it promptly have heat insulation effect, have electric heating function again, especially adopt temperature sensor is placed in the outer courage nest hole, and the scheme that the bottom in nest hole and inner bag closely contact, make temperature sensor neither be subjected to vacuum chamber to vacuumize the influence that produces high temperature, can measure the water temperature in the inner bag again more accurately.The water temperature signal of temperature sensor measurement passes to temperature controller, the break-make working condition of temperature controller control heating, thereby the purpose of realization control water temperature.Simultaneously, because the present invention adopts the structure of fixed head and outer gall bladder wall and electric heating tube seal welding, make sealing property reliable, guaranteed that vacuum cavity has higher vacuum, reach more than 8 years the service life of vacuum.
Another object of the present invention is the vacuum welding technology that proposes a kind of vacuum electric heating insulating utensils, it can be welded electric heating tube and outer courage, and guarantee good sealing property.
For realizing this purpose, the present invention adopts following technical scheme: a kind ofly produce the above-mentioned vacuum welding technology of stating the vacuum electric heating insulating utensils, it is characterized in that before vacuumizing, earlier electric heating tube being arranged in the hole on the inner bag, with courage and fixed head outside the insertion of electric heating tube two ends, inner bag and outer courage are welded together, fixed head and outside place soldering lug between the courage outer surface, fixedly placing soldering lug between plate hole and the electric heating tube, then it is vacuumized processing, evacuated pressure is more than 5 * 10-3Pa, and temperature is more than 500 ℃.When vacuum is extracted into more than 5 * 10-3Pa, when being warmed to more than 500 ℃, above-mentioned soldering lug fusing, thus reaching the purpose of sealing, this technology simple possible can be in the same place fixed head and outer gall bladder wall with the electric heating tube seal welding, guaranteed good sealing property.
Vacuum electric heating insulating utensils assembling of the present invention is simple, and sensor no longer passes through PROCESS FOR TREATMENT, dependable performance, and convenient maintenance and replacement.
Description of drawings
Fig. 1 is a vacuum electric heating thermos cup structure chart.
Fig. 2 is an A place partial enlarged drawing among Fig. 1.
Fig. 3 is a B place partial enlarged drawing among Fig. 1.
Fig. 4 be among Fig. 3 F to view.
The specific embodiment
Present embodiment is an example with the stainless-steel vacuum electric heating thermos cup, referring to Fig. 1 to Fig. 4.Present embodiment mainly is made up of stainless steel inner container 2, the outer courage 3 of stainless steel, bottle cap 1, heating, temperature controller 8 and temperature sensor 5, wherein, temperature sensor 5 detected temperature signals pass to temperature controller 8 by holding wire 11, temperature controller 8 is according to the working condition of said temperature signal controlling heating, has vacuum cavity between inner bag 2 and the outer courage 3, heating is arranged on inner bag 2 surfaces in the vacuum cavity, described outer courage 3 is provided with nest hole 12, the bottom in this nest hole 12 contacts with inner bag 2, its contact site adopts the spot welding mode to link to each other, and guarantees that contact is firm.Described temperature sensor 5 is bimetal leafs, and it places in the nest hole 12, is used for detecting the water temperature of inner bag 2.
Described heating adopts the electric heating tube 10 of standard, and the outside of electric heating tube 10 is one deck stainless steel tubes, and electrical heating wire is equipped with in the inside.Electric heating tube 10 is installed in the middle of the aluminium alloy heat sink 4, and link to each other with inner bag 2 bottoms by aluminium alloy heat sink 4, this aluminium alloy heat sink 4 links to each other with brazing mode at the bottom of the inner bag 2 bottoms employing abdomen, guarantee that big as far as possible contact area is arranged at aluminium alloy heat sink 4 and inner bag 2 bottoms, make the present invention have homogeneous heating, rapid, the characteristics that the thermal efficiency is high.
The two ends of electric heating tube 10 are fixed in two holes on the outer courage by fixed head 9, two holes that can put into the electric heating tube two ends are arranged in the described fixed head 9, these two borehole jacks are at electric heating tube 10 two ends in the fixed head 9, fixed head 9 is in the same place with electric heating tube 10 seal weldings with outer courage 3 outer walls, temperature controller 8 places above the fixed head 9, the capable outlet of electric heating tube 10 can be placed on outer courage 3 bottoms, and temperature controller 8 also can place outer courage 3 bottoms.
The sealing of electric heating tube 10 and vacuum cavity, because of electric heating tube 10 must pass outer courage 3 back external power supplys, the welded seal of electric heating tube and outer courage 3 becomes one of key that can the present invention implement, the present invention is processed with 2 than some 2 holes of electric heating tube 10 slightly larger in diameter on fixed head 9, gap between them is in 0.5 millimeter, 2 holes are passed at the two ends of heating tube, the middle soldering lug 13 of placing, when vacuum is extracted into more than 5 * 10-3Pa, heat more than 500 ℃ the time, above-mentioned soldering lug 13 fusings, thus reach the purpose of sealing, this is simple in structure feasible, good airproof performance.
Present embodiment is equipped with handle 7 on the courage 3 outside, and nest on the outer courage 3 hole 12 is arranged on outer courage 3 and handle 7 connecting portions, is arranged at interior temperature sensor 5 in nest hole 12 and the holding wire 11 between the temperature controller 8 and passes from handle.Cannot see holding wire 11 so from the outside fully, guaranteed the cup integral aesthetic property.
Vertical the above, the present invention is not only novel, and the design of practical its innovation really can reach namely and has The vacuum heat-preserving effect has again electric heating function, also possesses simultaneously the effect of function of temperature control. With the background skill Art compare have structure, technology is simple, sealing is reliable, the characteristics that vacuum life is long have substance Characteristics and significant progressive.
Claims (7)
1, a kind of vacuum electric heating insulating utensils, comprise inner bag, outer courage, heating, temperature controller and temperature sensor, the detected temperature signal of temperature sensor passes to temperature controller, temperature controller is according to the working condition of said temperature signal controlling heating, have vacuum cavity between inner bag and the outer courage, heating is arranged on the inner bag surface in the vacuum cavity, it is characterized in that described outer courage is provided with the nest hole, the bottom in this nest hole contacts with inner bag, and described temperature sensor places in this nest hole.
2, according to the described vacuum electric heating insulating utensils of claim 1, it is characterized in that described heating adopts electric heating tube, the two ends of electric heating tube are fixed in two holes on the outer courage by fixed head, two holes that can put into the electric heating tube two ends are arranged in the described fixed head, these two borehole jacks are at the electric heating tube two ends in the fixed head, fixed head is in the same place with the electric heating tube seal welding with outer gall bladder wall, and temperature controller places above the fixed head or outer courage bottom.
3, according to claim 1 or 2 described vacuum electric heating insulating utensils, it is characterized in that described heating links to each other with the inner bag bottom by the aluminium alloy heat sink, this aluminium alloy heat sink links to each other with brazing mode at the bottom of the inner bag bottom employing abdomen.
4, according to claim 1 or 2 described vacuum electric heating insulating utensils, it is characterized in that on the courage handle being housed outside, nest hole on the described outer courage is arranged on outer courage and handle connecting portion, is arranged at interior temperature sensor in nest hole and the holding wire between the temperature controller and passes from handle.
5,, it is characterized in that the bottom in nest hole on the described outer courage links to each other with inner bag contact site employing spot welding mode according to claim 1 or 2 described vacuum electric heating insulating utensils.
6, according to claim 1 or 2 described vacuum electric heating insulation wares, it is characterized in that described electric heating temp-controlling element is a bimetal leaf.
7, a kind of vacuum welding technology as vacuum electric heating insulating utensils as described in the claim 2, it is characterized in that before vacuumizing, earlier electric heating tube being arranged in the hole on the inner bag, with courage and fixed head outside the insertion of electric heating tube two ends, inner bag and outer courage are welded together, fixed head and outside place soldering lug between the courage outer surface, fixedly placing soldering lug between plate hole and the electric heating tube, then it is vacuumized processing, evacuated pressure is more than 5 * 10-3Pa, and temperature is more than 500 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02139038XA CN1172622C (en) | 2002-09-12 | 2002-09-12 | Vacuum electric heat-insulation vessel and vacuum welding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02139038XA CN1172622C (en) | 2002-09-12 | 2002-09-12 | Vacuum electric heat-insulation vessel and vacuum welding process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1401287A true CN1401287A (en) | 2003-03-12 |
| CN1172622C CN1172622C (en) | 2004-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB02139038XA Expired - Fee Related CN1172622C (en) | 2002-09-12 | 2002-09-12 | Vacuum electric heat-insulation vessel and vacuum welding process |
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| CN (1) | CN1172622C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100441131C (en) * | 2006-07-31 | 2008-12-10 | 白明军 | Glass liner structure of vacuum electric heating vessel |
| CN102106692A (en) * | 2011-01-19 | 2011-06-29 | 美的集团有限公司 | Electric kettle with double-layer structure |
| CN102715849A (en) * | 2012-06-06 | 2012-10-10 | 美的集团有限公司 | Vacuum electric heating container structure |
| WO2017054220A1 (en) * | 2015-10-01 | 2017-04-06 | 史利利 | Vacuum electrothermal container |
| CN110973975A (en) * | 2019-12-12 | 2020-04-10 | 浙江哈尔斯真空器皿股份有限公司 | Method for manufacturing body structure of vacuum electric kettle |
-
2002
- 2002-09-12 CN CNB02139038XA patent/CN1172622C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100441131C (en) * | 2006-07-31 | 2008-12-10 | 白明军 | Glass liner structure of vacuum electric heating vessel |
| CN102106692A (en) * | 2011-01-19 | 2011-06-29 | 美的集团有限公司 | Electric kettle with double-layer structure |
| CN102106692B (en) * | 2011-01-19 | 2012-05-09 | 美的集团有限公司 | Electric kettle with double-layer structure |
| CN102715849A (en) * | 2012-06-06 | 2012-10-10 | 美的集团有限公司 | Vacuum electric heating container structure |
| WO2017054220A1 (en) * | 2015-10-01 | 2017-04-06 | 史利利 | Vacuum electrothermal container |
| CN110973975A (en) * | 2019-12-12 | 2020-04-10 | 浙江哈尔斯真空器皿股份有限公司 | Method for manufacturing body structure of vacuum electric kettle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1172622C (en) | 2004-10-27 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041027 Termination date: 20170912 |