CN1013150B - Blast circuit heat furnace unit applying shape memory alloy - Google Patents
Blast circuit heat furnace unit applying shape memory alloyInfo
- Publication number
- CN1013150B CN1013150B CN 85103284 CN85103284A CN1013150B CN 1013150 B CN1013150 B CN 1013150B CN 85103284 CN85103284 CN 85103284 CN 85103284 A CN85103284 A CN 85103284A CN 1013150 B CN1013150 B CN 1013150B
- Authority
- CN
- China
- Prior art keywords
- memory alloy
- shape memory
- spring
- damper
- alloy spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Images
Landscapes
- Air-Flow Control Members (AREA)
- Electric Ovens (AREA)
Abstract
The present invention relates to a hot air circulating heating furnace. Memory alloy springs with different shapes are adopted in the furnace to serve as a driving means for opening, closing and adjusting an air door.
Description
Thereby the present invention relates to a kind of applying shape memory alloy spring and drive the blast circuit heat furnace unit that damper changes gas stream in the stove.
When marmem arrived a certain temperature, they were tried hard to and will restore to the original state, and this might adopt this material to open or close damper as spring element according to the situation of temperature with regard to making.But, marmem for general pattern, its restorable power will decay along with the duration of number of times that uses or use, aging in other words, the result, when a displacement spring is used for keeping damper to open, marmem is held this spring does not make its power of closing damper will be with it aging and reduce gradually, at last, the power of this marmem can be closed the power of damper to overcoming displacement spring for a short time, and heat efficiency is not high when having caused the hot air circulation heating to boil again along with this.
The Japanese Utility Model patent application No60-7503 that does not carry out examination as to substances as yet discloses a kind of heating generator, this heater is provided with a through hole, cold air enters heating chamber by this through hole, above-mentioned through hole is opened or is closed by damper lid, air door covers a shape memory alloy spring is housed, when energising, this spring changes its shape.The characteristics of this heating generator are that the conductor arrangement to shape memory alloy spring power supply gets not to be made it cover with damper to contact.The shortcoming of this heater is, the unlatching that shape memory alloy spring causes the air door lid not exclusively or be not closed completely.
The objective of the invention is, even marmem is aged to a certain degree as described above, it is the opening and closing damper definitely.
For achieving the above object, the present invention is provided with first shape memory alloy spring that be connected with damper, direction of action and second shape memory alloy spring, also be provided with the electric device that is connected with second shape memory alloy spring with above-mentioned first shape memory alloy spring, this electric device is used for making it open damper to one of described spring energising, thereby air is introduced furnace chamber, another energising to described spring makes it close damper, and above-mentioned first shape memory alloy spring and second marmem be energising simultaneously not.When damper cut out, one of above-mentioned spring was in compressive state, and when damper was opened, another then was in compressive state above-mentioned spring.
Now accompanying drawing is made a brief description:
Fig. 1 is the side sectional view sketch map of an embodiment of blast circuit heat furnace unit of the present invention;
Fig. 2 is the line map of damper drive unit major part;
Fig. 3 is the enlarged diagram of an embodiment of damper drive unit of the present invention.
Now embodiments of the invention are done an explanation according to above-mentioned accompanying drawing.
Among Fig. 1, (1) is blast circuit heat furnace unit, it includes a hot air circulation fan (4) and is arranged near the heating element (5) of fan (4), and they are installed in the hot air circulation passage (6), and the latter then is installed on the top (3) of heating furnace body (2).(7) be cooling fan, its cools off the magnetron (8) of launched microwave and in microwave boils process air is delivered in the body of heater (2).(9) be duct in sidewall (10) top of above-mentioned body of heater (2), it is provided with a plurality of apertures (11), (12) for being positioned near the damper passage the duct (9), damper lid (14) is installed in the end of damper passage, and (13) rotation around the shaft.(15) be the damper gusset, it makes end (16) rotation around the shaft of damper lid (14), damper drive plate (19) is installed on the end of above-mentioned adjusting gusset (15), this plate can rotate, be installed on this plate the shape memory alloy spring (17) that is in compressive state when also having a damper lid (14) to open and a damper lid (14) are in compressive state when closing marmem (18), these two springs be separated by one section suitable distance in case permission freely rotate.(20) and (21) be above-mentioned shape memory alloy spring (17), the power connector end of (18), they by the insulation device be fixed on angle steel place (not shown) on this heating furnace top.(22) and (23) be and power connector end (20), the lead that (21) are connected, they are connected with AC power, and this AC power is by power transformer (24), (25) adjust to particular value.(26), (27) are relay, and they are moved by the effect of the effect of microwave heating or hot air circulation heating respectively.
(26 '), (27 ') are for being located at the contact of the above-mentioned relay on the hot air circulating oven control board (28), and they are connected in the centre of above-mentioned power transformer (24), (25) secondary and above-mentioned leads (22), (23) respectively.
Below, will make an explanation, the especially working condition of damper lid (14) according to the embodiment of the invention that Fig. 3 forms above-mentioned member.
When carrying out microwave heating, during button on pressing control board (28), cooling fan (7) just gets into smooth in the magnetron starting oscillation, relay contact (26 ') is closed during relay (26) energising, power transformer (24) just is added to the alternating voltage that is reduced to a certain appropriate voltage on the marmem (17), promptly heat marmem (17) so produced joule's heat energy, this just makes this spring produce a power that returns to the original state that it remembers, so spring shrinks, shown in arrow among the figure (A), the contraction of spring causes damper drive plate (19) to rotate around its rotating shaft (19 ') by the arrow B direction.Correspondingly, damper gusset (15) is by the motion of arrow C direction, and damper lid (14) then rotates along direction shown in the arrow D; And when marmem (17) since by above-mentioned lead (22) the effect of Joule heat of the AC energy that supplies generation reach its certain temperature, damper gusset (15) and adjusting divide a door drive plate (19) then to be separately fixed at the position shown in the solid line, so damper lid (14) is opened, the air-flow that produced of thermantidote (7) enters in the sidewall (10) of heating furnace body (2) with regard to passing hole channel (9) like this.
Secondly, when carrying out the hot air circulation heating, when the button on the above-mentioned control board of operation (28), relay (27) is just switched on simultaneously in hot air circulation fan (4) power supply, relay contact (27 ') is closed, so power transformer (25) is added to the alternating voltage that is reduced to a certain appropriate value on the shape memory alloy spring (18), the Joule heat that is produced in the spring has heated shape memory alloy spring (18), this just makes this spring produce a power of recovering the original state that it remembers rapidly, as the situation of above-mentioned shape memory alloy spring (17), spring (18) by arrow A ' shown in direction shrink, this just make damper drive plate (19) by arrow B ' shown in direction rotate around its rotating shaft (19 '), damper gusset (15) along arrow C ' shown in direction move, damper lid (14) is pressed the rotation of direction shown in the arrow D ', then they are separately fixed at shown in the dotted line on the position, and damper lid this moment (14) is in closed condition.Correspondingly, cold wind no longer is fed in the heating furnace (2), and the air by heating element (5) heating is entered in this heating furnace by the effect of hot air circulation fan, thus since in the stove circulating current improved effect heat efficiency food in the oven effectively.
In addition, because power supply is not given above-mentioned shape memory alloy spring (17) power supply, then making damper lid (14) keep the power of closed condition only is the elastic force of above-mentioned shape memory alloy spring (18).
In the opening and closing of damper lid of the present invention (14), shape memory alloy spring that is used to open (17) and the shape memory alloy spring (18) that is used to close have own directly power supply separately and are used to make spring to remember the Joule heat of its original state so that produce, the closing motion of reliable breakdown action is provided for damper, even and guarantee that these marmems also can be used for driving damper when they are aged to a certain degree, as long as they keep its shape memory function, the damper On/Off device of a kind of long life so just is provided, and a kind of more reliable hot air circulating oven also is provided thus.
Claims (2)
1, a kind of hot air circulation microwave oven, it is made of following part, one furnace chamber, one through hole of on furnace chamber, offering, can be used for the throttle setting of the described through hole of opening and closing, a fan assembly, this fan assembly is used for when microwave cooked air being sent into microwave oven by described through hole, the invention is characterized in, be provided with and be connected with described throttle setting, first shape memory alloy spring of direction of action and second shape memory alloy spring, be provided with the electric device that is connected with second shape memory alloy spring with described first shape memory alloy spring, this electric device is used for making it open described air door to one of described spring energising, thereby air is introduced described furnace chamber, another energising to described spring makes it close described air door, and described first shape memory alloy spring and second shape memory alloy spring be energising simultaneously not.
2, hot air circulation microwave oven according to claim 1, it is characterized in that, above-mentioned two memory alloy springs are separately positioned on the both sides of axle (19 '), when described air door is closed, one of described spring is in compressive state, and when described door opening, another then is in compressive state described spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85103284 CN1013150B (en) | 1985-04-30 | 1985-04-30 | Blast circuit heat furnace unit applying shape memory alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85103284 CN1013150B (en) | 1985-04-30 | 1985-04-30 | Blast circuit heat furnace unit applying shape memory alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85103284A CN85103284A (en) | 1987-03-04 |
| CN1013150B true CN1013150B (en) | 1991-07-10 |
Family
ID=4793079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85103284 Expired CN1013150B (en) | 1985-04-30 | 1985-04-30 | Blast circuit heat furnace unit applying shape memory alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1013150B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1791134B1 (en) * | 2005-11-25 | 2009-03-11 | Magneti Marelli S.p.A. | Choke device for an internal combustion engine intake system |
| CN102128191B (en) * | 2010-12-23 | 2012-02-29 | 合肥工业大学 | Active disassembly structure capable of being electrothermally excited and excitation method thereof |
-
1985
- 1985-04-30 CN CN 85103284 patent/CN1013150B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN85103284A (en) | 1987-03-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4635610A (en) | Hot air circulating oven range using shape memory alloy | |
| JPS56154308A (en) | Electric room heater for car | |
| US4608474A (en) | Negative thermal expansion metal electrically connected to motor means for microwave oven | |
| CN1013150B (en) | Blast circuit heat furnace unit applying shape memory alloy | |
| US4480628A (en) | Fuel efficient oven | |
| KR890007844Y1 (en) | Damper apparatus of microwaves range with shape memorable metal | |
| CN108731262A (en) | Marine explosion-proof self-control safety type electric heater for pipeline | |
| JPH0144967Y2 (en) | ||
| CN209542253U (en) | A kind of powder metallurgy test preprocessor of band rotation heat-generating disc | |
| JPH0144966Y2 (en) | ||
| CN221549176U (en) | Gold powder drying furnace | |
| JPS6118324Y2 (en) | ||
| JPS62155Y2 (en) | ||
| JPH0315923Y2 (en) | ||
| JPH0332884Y2 (en) | ||
| JPH0694241A (en) | Heating and cooking device | |
| JPH0221694Y2 (en) | ||
| JPS6139209Y2 (en) | ||
| KR100517742B1 (en) | Damper controlling apparatus of microwave oven | |
| GR3032893T3 (en) | Cooking vessel with variable cooking power | |
| KR100643884B1 (en) | Pizza oven | |
| ATE288181T1 (en) | FURNACE FOR HIGH TEMPERATURE HEAT TREATMENT | |
| KR950001875Y1 (en) | Magnetron temperature control apparatus | |
| JPS5960984A (en) | High frequency heater | |
| KR950004980Y1 (en) | Cooker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |