CN102637552B - Force thermocutout - Google Patents
Force thermocutout Download PDFInfo
- Publication number
- CN102637552B CN102637552B CN201210114462.7A CN201210114462A CN102637552B CN 102637552 B CN102637552 B CN 102637552B CN 201210114462 A CN201210114462 A CN 201210114462A CN 102637552 B CN102637552 B CN 102637552B
- Authority
- CN
- China
- Prior art keywords
- glass
- thermocutout
- memorial alloy
- lower pressing
- nut
- 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 - Fee Related
Links
Images
Abstract
The invention provides a force thermocutout, comprising an upper pressing piece, a lower pressing piece, a stud, a nut, a left memory alloy and a right memory alloy, wherein the upper pressing piece and the lower pressing piece are respectively contacted with the upper surface and the lower surface of glass; the glass, the upper pressing piece and the lower pressing piece are fixed together by the stud and the nut through threaded connection; and the upper ends and the lower ends of the left and right memory alloys are respectively arranged in clamping slots of the nut and the stud. When the force thermocutout is subjected to unusual high temperature load, the lengths of the memory alloys are contracted to apply relatively large pressure on the upper and lower pressing pieces, and when the pressure generated at the pointed-cone-shaped parts of the upper and lower pressing pieces exceeds the breaking strength of the glass, the glass with a metal coating cuts off a circuit. In addition, when being subjected to unusual high pressure load, the force thermocutout applies relatively large pressure on the upper and lower pressing pieces, and when the pressure generated at the pointed-cone-shaped parts of the upper and lower pressing pieces exceeds the breaking strength of the glass, the glass with the metal coating cuts off a circuit. The force thermocutout disclosed by the invention can respond to the unusual high-temperature load and high-pressure load simultaneously, thus achieving a system circuit protection function.
Description
Technical field
The present invention relates to a kind of safeties, be specifically related to a kind of response abnormality high temperature load and abnormal pressure load simultaneously, in abnormal power thermal environment, cut off in time circuit, reach the power thermocutout of protection system circuit.
Background technology
In abnormal power thermal environment, for avoiding electronic product to be subject to the infringement of abnormal high temperature load and abnormal pressure load, and cause whole product systems normally to work, conventionally with thermocutout and power safeties response abnormality high temperature load and abnormal pressure load respectively.In U.S. Pat 5600295; in domestic patent CN2342462Y and CN1140509A, proposed respectively the thermocutout of three kinds of patterns, its operation principle is when reaching fuse fusion temperature; thermocutout cuts off circuit, thereby reaches the function of protection system circuit.At home in patent CN2300729Y and CN2058696U, for prevent the engine generation burning accident that runs up under lubricating oil lacks situation, safety device for pressure of lubricating oil has been proposed, its operation principle is when engine interior pressure is greater than a certain value, power safeties cut off circuit, engine stop work, thus reach the object that prevents engine tile kilning.But involved safeties are applied to respectively abnormal thermal environment and abnormal force environment in these patents, and cannot be applicable to the protection of circuit system in abnormal power thermal environment coupling situation.
Summary of the invention
For the simultaneously deficiency of response abnormality high temperature load and abnormal pressure load of safeties of the prior art, the present invention proposes a kind of power thermocutout.
Power thermocutout of the present invention, comprises glass, memorial alloy, and double-screw bolt, nut and briquetting, is characterized in that: described briquetting is divided into upper holder block and lower lock block, wherein, and upper holder block and Surface Contact on glass, lower lock block contacts with lower glass surface; Glass, upper holder block and lower lock block are fixed together by being threaded between double-screw bolt and nut; Memorial alloy is divided into left memorial alloy and right memorial alloy, and the upper ends of left memorial alloy and right memorial alloy is in nut draw-in groove, and the lower end of left memorial alloy and right memorial alloy is positioned in double-screw bolt draw-in groove.
Particularly, left memorial alloy and right memorial alloy are in thermal environment, and along with temperature raises, their length can shorten.Upper holder block and Surface Contact on glass place are shaped as sharp cone distal, lower lock block and lower glass surface contact position be shaped as sharp cone distal.Upper surface and the lower surface of glass have the coat of metal.
Power thermocutout principle of the present invention is: when this device is subject to abnormal high temperature load, memorial alloy Length Contraction, can apply larger pressure to upper holder block and lower lock block, when the pressure producing at sharp cone distal place when upper holder block and lower lock block exceedes the fracture strength of glass, the glass with the coat of metal can cut off circuit.In addition, when this device is subject to abnormal pressure load, can apply larger pressure to upper holder block and lower lock block, when the pressure producing at sharp cone distal place when upper holder block and lower lock block exceedes the fracture strength of glass, the glass with the coat of metal can cut off circuit.Thereby protection system circuit in abnormal power thermal environment.
Power thermocutout of the present invention on the basis of existing technology, by upper holder block and lower lock block, to thering is coat of metal glass, apply larger pressure, utilize the Fracturing properties of glass, cut off in time circuit, on the one hand, when device is subject to abnormal high temperature load, memorial alloy Length Contraction, when the pressure producing at the sharp cone distal place of upper holder block and lower lock block exceedes the fracture strength of glass, glass fragmentation faced is with response abnormality high temperature load; On the other hand, when device is subject to abnormal pressure load, when the pressure producing at sharp cone distal place at upper holder block and lower lock block exceedes the fracture strength of glass, glass fragmentation faced is with the high compressive load of response abnormality.Thereby be applicable to the protection of circuit system in abnormal power thermal environment coupling situation.
Accompanying drawing explanation
Fig. 1 is the cutaway view of power thermocutout of the present invention.
Embodiment
Accompanying drawing is power thermocutout cutaway view of the present invention, and in the accompanying drawings, upper holder block 3 contacts with glass 5 upper surface 5a, and lower lock block 4 contacts with glass 5 lower surface 5b; Glass 5, upper holder block 3 and lower lock block 4 are fixed together by being threaded between double-screw bolt 6 and nut 2; The upper ends of left memorial alloy 7 and right memorial alloy 1 is in nut 2 draw-in groove 2a, and the lower end of left memorial alloy 7 and right memorial alloy 1 is positioned in double-screw bolt 6 draw-in groove 6a.Left memorial alloy 7 and right memorial alloy 1 are in thermal environment, and along with temperature raises, their length can shorten.The sharp cone distal that is shaped as of upper holder block 3 and glass 5 upper surface 5a contact positions, the sharp cone distal that is shaped as of lower lock block 4 and glass 5 lower surface 5b contact positions.Upper surface 5a and the lower surface 5b of glass 5 have the coat of metal.
In the accompanying drawings, when power thermocutout is subject to abnormal high temperature load, the length of left memorial alloy 7 and right memorial alloy 1 can be shunk, upper holder block 3 and lower lock block 4 are formed to larger pressure, when the pressure producing at sharp cone distal place when upper holder block 3 and lower lock block 4 exceedes the fracture strength of glass 5, the glass 5 with the coat of metal can cut off circuit.In addition, when power thermocutout is subject to abnormal pressure load, can apply larger pressure to upper holder block 3 and lower lock block 4, when the pressure producing at sharp cone distal place when upper holder block 3 and lower lock block 4 exceedes the fracture strength of glass 5, the glass 5 with the coat of metal can cut off circuit.Therefore, this device utilizes left memorial alloy 7 and right memorial alloy 1 to raise and recover the characteristic of initial shape memory and the Fracturing properties of glass 5, response abnormality high temperature load with temperature; Meanwhile, this device can utilize the version of upper holder block 3 and lower lock block 4 and the Fracturing properties of glass 5, the high compressive load of response abnormality.Thereby protection system circuit in abnormal power thermal environment coupling situation.
In the accompanying drawings, also useful ceramics material replacement of glass 5.
Claims (1)
1. a power thermocutout, comprises glass, memorial alloy, and double-screw bolt, nut and briquetting, is characterized in that: described briquetting is divided into upper holder block and lower lock block, wherein, and upper holder block and Surface Contact on glass, lower lock block contacts with lower glass surface; Glass, upper holder block and lower lock block are fixed together by being threaded between double-screw bolt and nut; Memorial alloy is divided into left memorial alloy and right memorial alloy, and the upper ends of left memorial alloy and right memorial alloy is in nut draw-in groove, and the lower end of left memorial alloy and right memorial alloy is positioned in double-screw bolt draw-in groove; Described upper holder block and Surface Contact on glass place are shaped as sharp cone distal, lower lock block and lower glass surface contact position be shaped as sharp cone distal; Upper surface and the lower surface of described glass have the coat of metal, and when the pressure producing at sharp cone distal place when upper holder block and lower lock block exceedes the fracture strength of glass, the glass with the coat of metal can cut off circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210114462.7A CN102637552B (en) | 2012-04-19 | 2012-04-19 | Force thermocutout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210114462.7A CN102637552B (en) | 2012-04-19 | 2012-04-19 | Force thermocutout |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102637552A CN102637552A (en) | 2012-08-15 |
| CN102637552B true CN102637552B (en) | 2014-04-16 |
Family
ID=46621909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210114462.7A Expired - Fee Related CN102637552B (en) | 2012-04-19 | 2012-04-19 | Force thermocutout |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102637552B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4167724A (en) * | 1977-11-14 | 1979-09-11 | Mccaughna James R | Thermal switches |
| CN2058696U (en) * | 1988-01-22 | 1990-06-27 | 本溪钢铁公司初轧厂 | Self-control interlocking apparatus of gasoline engine lubricating system and ignition system |
| CN2136522Y (en) * | 1992-10-19 | 1993-06-16 | 中国科学院金属研究所 | Marmem temp. controller |
| CN2300729Y (en) * | 1997-03-20 | 1998-12-16 | 国营九江玻璃模具厂 | Safety device for pressure of lubricating oil |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0963441A (en) * | 1995-08-30 | 1997-03-07 | Sanyo Electric Co Ltd | Thermal fuse |
| JP2002042620A (en) * | 2000-07-27 | 2002-02-08 | Nec Schott Components Corp | Protective element |
| JP2009069952A (en) * | 2007-09-11 | 2009-04-02 | Maruya:Kk | Heat sensor and fire alarm using it |
-
2012
- 2012-04-19 CN CN201210114462.7A patent/CN102637552B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4167724A (en) * | 1977-11-14 | 1979-09-11 | Mccaughna James R | Thermal switches |
| CN2058696U (en) * | 1988-01-22 | 1990-06-27 | 本溪钢铁公司初轧厂 | Self-control interlocking apparatus of gasoline engine lubricating system and ignition system |
| CN2136522Y (en) * | 1992-10-19 | 1993-06-16 | 中国科学院金属研究所 | Marmem temp. controller |
| CN2300729Y (en) * | 1997-03-20 | 1998-12-16 | 国营九江玻璃模具厂 | Safety device for pressure of lubricating oil |
Non-Patent Citations (3)
| Title |
|---|
| JP特开2002-42620A 2002.02.08 |
| JP特开2009-69952A 2009.04.02 |
| JP特开平9-63441A 1997.03.07 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102637552A (en) | 2012-08-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203933002U (en) | A kind of surge absoption protector with the hot detaching structure of displacement interrupter-type | |
| NZ706103A (en) | Thermo-mechanical processing of nickel-titanium alloys | |
| WO2014016382A3 (en) | Battery having a thermal switch | |
| CN204597030U (en) | Conducting terminal constructs | |
| CN205846418U (en) | A kind of digital-control type exempts from mold exchange terminal crimping apparatus | |
| CN103109340B (en) | Dynamo-electric overtemperature prote element | |
| CN102637552B (en) | Force thermocutout | |
| CA2666810A1 (en) | Fast extraction threaded nut | |
| CN204248997U (en) | A kind of Poly Foam foam-plastic hot cutting tool | |
| CN104919560B (en) | Device for generating a safe low impedance electrical short circuit independent of an operating voltage | |
| CN204480909U (en) | A kind of thermal resistance formula on-load switch conductor plate syndeton | |
| CN201110297Y (en) | Annular safety pin | |
| CN110972551B (en) | Safety mechanism of electric pin pusher | |
| CN202797840U (en) | Structure capable of avoiding overheat of power transmission line splicing sleeve | |
| CN204143971U (en) | Along face ignition electric nozzle ceramic insulator | |
| CN204578410U (en) | Electronic-type starter | |
| EP2843680A3 (en) | Temperature-dependent switch | |
| CN204476999U (en) | Combination lock screw | |
| CN104299917A (en) | Manufacturing and installing process of automobile generator diode chip and base | |
| CN104842122A (en) | Conducting rod forge forming process | |
| CN204180295U (en) | A kind of Novel electric heating plate | |
| CN203923752U (en) | A kind of electric iron temperature controller | |
| CN203957897U (en) | A kind of automotive battery assembly and automobile | |
| CN203272909U (en) | Explosive-proof type mining one-way valve | |
| CN104044465B (en) | A kind of automobile storage battery assembly and automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20140416 Termination date: 20190419 |