CN104675674A - Temperature protection device of thermal bimetallic strip - Google Patents
Temperature protection device of thermal bimetallic strip Download PDFInfo
- Publication number
- CN104675674A CN104675674A CN201510062987.4A CN201510062987A CN104675674A CN 104675674 A CN104675674 A CN 104675674A CN 201510062987 A CN201510062987 A CN 201510062987A CN 104675674 A CN104675674 A CN 104675674A
- Authority
- CN
- China
- Prior art keywords
- plate
- bimetallic strip
- thrermostatic bimetal
- thermal bimetallic
- temperature
- 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.)
- Pending
Links
Abstract
The invention relates to a temperature protection device of a thermal bimetallic strip. The temperature protection device comprises the thermal bimetallic strip, a gas path outlet and a base, wherein the thermal bimetallic strip is fixed on the base through a fixed screw, and the gas path outlet is positioned below the thermal bimetallic strip and penetrates through the base. By virtue of the technical scheme of the temperature protection device, the temperature protection device is installed in the position of a gas inlet of a vacuum pump, and when the internal operating temperature reaches 130 DEG C, the thermal bimetallic strip is automatically deformed from a warping state to a flat state, so that the gas path outlet is fully sealed, and gas cannot pass through; when the internal operating temperature returns to normal temperature, the thermal bimetallic strip is automatically deformed to return to the initial warping state, the gas path outlet is opened, the vacuum pump can be normally used, and accidents such as internal combustion, explosion and the like caused by overtemperature in the vacuum pump can be effectively prevented.
Description
Technical field
The present invention relates to a kind of temperature protective device, particularly relate to a kind of thrermostatic bimetal-plate temperature protective device that can be used for air-inlet of vacuum pump heat protective effect.
Background technique
Thrermostatic bimetal-plate is also referred to as bimetallic strip, because the thermal expansion coefficient of two sides metallic element is different, when the temperature is changed, the deformation of active layers is greater than the deformation of passive layer, thrermostatic bimetal-plate will to the curving of passive layer, what wherein expansion coefficient was higher is active layers, and what expansion coefficient was lower is passive layer.
Under some hot environments, if the temperature of Environmental Conditions raises always, there is larger impact to the working life of equipment and product, if do not take measures to this, serious accident will be caused, therefore take Thermal protection measure just to become necessary.
Vacuum pump because of internal structure be friction structure; during use, the temperature of inside can raise gradually; the gas that vacuum pump operationally extracts is gasoline volatilization gas, very easily causes danger in an environment of high temperature, causes accident; therefore in the stage of designing and developing; entrance location is designed thermel protection device, and after reaching certain temperature, import can be closed, automatically not in air inlet; after temperature is reduced to normal range (NR), vacuum pump can normally work.
Because above-mentioned conception; the present inventor based on being engaged in the practical experience and professional knowledge that this type of product specification manufacture enriches for many years, and coordinates the utilization of scientific principle, actively in addition research and innovation; to founding a kind of thrermostatic bimetal-plate temperature protective device of new structure, it is made to have more practicability.Through constantly research, design, and through repeatedly studying sample and after improving, finally creating the present invention had practical value.
Summary of the invention
The object of the invention is to, there is provided a kind of thrermostatic bimetal-plate temperature protective device of new structure, technical problem to be solved is the suction port position being arranged on vacuum pump, reaches thrermostatic bimetal-plate auto Deformation after certain temperature, cover cap suction port, suction port is air inlet no longer; After temperature is reduced to normal range (NR), thermometal sheet returns to original shape automatically, air inlet open, and vacuum pump can normally work, thus is more suitable for practicality.
The object of the invention to solve the technical problems realizes by the following technical solutions.According to a kind of thrermostatic bimetal-plate temperature protective device that the present invention proposes, comprise thrermostatic bimetal-plate, gas circuit outlet, pedestal, wherein this thrermostatic bimetal-plate is fixed on pedestal; The outlet of this gas circuit is positioned at the below of thrermostatic bimetal-plate, runs through pedestal.
Object of the present invention and solve its technical problem and can also be further achieved by the following technical measures.
Aforesaid temperature protective device, wherein said thrermostatic bimetal-plate is fixed on pedestal by set screw.
Aforesaid temperature protective device, when wherein said thrermostatic bimetal-plate is tilting state, gas circuit port opening.
Aforesaid temperature protective device, during the flat state of wherein said thrermostatic bimetal-plate, gas circuit port closing.
The present invention compared with prior art has obvious advantage and beneficial effect.By technique scheme, a kind of thrermostatic bimetal-plate temperature protective device of the present invention at least has following advantages:
1, low-profile, easy for installation, tool convenience.
2, precision is high, reaches 130 DEG C of i.e. deformables, closes gas circuit completely, tool Security.
3, adopt precise cold to be shaped, ensure that boundary dimension is unified.
4, use special thermal treatment technique, ensure that bimetallic strip performance is better, longer service life.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to technological means of the present invention can be better understood, and can be implemented according to the content of specification, and can become apparent for allowing above and other object of the present invention, feature and advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the general structure schematic diagram of a kind of thrermostatic bimetal-plate temperature protective device of the present invention.
Fig. 2 is the closed state schematic diagram of a kind of thrermostatic bimetal-plate temperature protective device of the present invention.
[primary symbols explanation]
1: thrermostatic bimetal-plate
2: gas circuit exports
3: pedestal
4: set screw
Embodiment
For further setting forth the present invention for the technological means reaching predetermined goal of the invention and take and effect; below in conjunction with accompanying drawing and preferred embodiment; to a kind of its embodiment of thrermostatic bimetal-plate temperature protective device proposed according to the present invention, structure, feature and effect thereof, be described in detail as follows.
Referring to Fig. 1, is the general structure schematic diagram of a kind of thrermostatic bimetal-plate temperature protective device of the present invention.A kind of thrermostatic bimetal-plate temperature protective device of the present invention, comprises thrermostatic bimetal-plate 1, gas circuit outlet 2, pedestal 3.This thrermostatic bimetal-plate 1 is fixed on pedestal 3.This gas circuit outlet 2 is positioned at the below of thrermostatic bimetal-plate 1, runs through pedestal 3.
Preferably, aforesaid thrermostatic bimetal-plate 1 is fixed on pedestal 3 by set screw 4.Because this temperature protective device Long-Time Service is in the environment of vibration, thread locking agent can be added in the screw thread of set screw 4, prevent this set screw 4 from getting loose, but the present invention not limit this.
Preferably, the active layers of aforesaid thrermostatic bimetal-plate 1 upper, passive layer under, be structure as a whole.When the temperature varies, this thrermostatic bimetal-plate 1 can deform automatically.
Refer to Fig. 1, preferably, when aforesaid thrermostatic bimetal-plate 1 is in tilting state, gas circuit outlet 2 is opened.
Refer to Fig. 2, preferably, when aforesaid thrermostatic bimetal-plate 1 becomes formation state from tilting state, gas circuit outlet 2 is closed.
In actual applications, this thrermostatic bimetal-plate temperature protective device is applicable to various types of vacuum pump, and its principle is also applicable to similar electric machine temperature rise protection, the protection etc. of thermorelay.The workflow of this temperature protective device in vacuum pump will be introduced in detail below.
A kind of thrermostatic bimetal-plate temperature protective device of the present invention is arranged on air-inlet of vacuum pump position, and suction port is in the below of thrermostatic bimetal-plate 1.During normal state, thrermostatic bimetal-plate 1 is in tilting state, and gas enters from air-inlet of vacuum pump, and then enter vacuum pump inside by gas circuit outlet 2, carry out operation, inside temperature can rise gradually.When the processing temperature of inside reaches 130 DEG C, thrermostatic bimetal-plate 1 can deform automatically.Deformation due to active layers is greater than the deformation of passive layer, this thrermostatic bimetal-plate 1 becomes formation state from tilting state, cover cap gas circuit outlet 2, thus closes gas circuit outlet 2 completely, make gas can not enter vacuum pump inside, prevent the too high initiation potential of inner combustable gas concentration.After the processing temperature of inside returns to normal temperature, thrermostatic bimetal-plate 1 deforms automatically, returns to initial tilting state, and gas circuit outlet 2 is opened, and gas continues to enter vacuum pump inside, and vacuum pump gets final product normal operation.Adopt this thrermostatic bimetal-plate temperature protective device effectively can prevent the inner accident such as internal-combustion, blast caused because temperature is too high of vacuum pump.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (4)
1. a thrermostatic bimetal-plate temperature protective device, it is characterized in that comprising thrermostatic bimetal-plate, gas circuit outlet, pedestal, wherein this thrermostatic bimetal-plate is fixed on pedestal; The outlet of this gas circuit is positioned at the below of this thrermostatic bimetal-plate, runs through pedestal.
2. temperature protective device according to claim 1, is characterized in that wherein said thrermostatic bimetal-plate is fixed on pedestal by set screw.
3. temperature protective device according to claim 2, when it is characterized in that wherein said thrermostatic bimetal-plate is tilting state, gas circuit port opening.
4. temperature protective device according to claim 2, when it is characterized in that the flat state of wherein said thrermostatic bimetal-plate, gas circuit port closing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510062987.4A CN104675674A (en) | 2015-02-06 | 2015-02-06 | Temperature protection device of thermal bimetallic strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510062987.4A CN104675674A (en) | 2015-02-06 | 2015-02-06 | Temperature protection device of thermal bimetallic strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104675674A true CN104675674A (en) | 2015-06-03 |
Family
ID=53311145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510062987.4A Pending CN104675674A (en) | 2015-02-06 | 2015-02-06 | Temperature protection device of thermal bimetallic strip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104675674A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810074A (en) * | 2016-05-18 | 2016-07-27 | 北京大学口腔医学院 | Crown lengthening surgery training aid |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4332717A1 (en) * | 1992-12-02 | 1994-06-09 | Vdo Schindling | Pressure limitation valve inside fuel tank - has bimetal disc to alter switching point of valve |
| JPH0842419A (en) * | 1994-07-29 | 1996-02-13 | Aisan Ind Co Ltd | Impeller type pump |
| CN1621692A (en) * | 2003-11-25 | 2005-06-01 | 三星电子株式会社 | Variable capacity rotary compressor |
| CN101485545A (en) * | 2008-01-15 | 2009-07-22 | 徐佳义 | Air vent valve of steaming tool with button-shaped actuator device |
| CN202355232U (en) * | 2011-11-29 | 2012-08-01 | 孔凡伟 | Pot cover with bimetallic-strip pressure release valve |
| CN103291963A (en) * | 2012-02-23 | 2013-09-11 | 通用汽车环球科技运作有限责任公司 | Diesel fuel temperature relief valve |
| CN204458266U (en) * | 2015-02-06 | 2015-07-08 | 洛阳普瑞曼自动控制技术有限公司 | A kind of thrermostatic bimetal-plate temperature protective device |
-
2015
- 2015-02-06 CN CN201510062987.4A patent/CN104675674A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4332717A1 (en) * | 1992-12-02 | 1994-06-09 | Vdo Schindling | Pressure limitation valve inside fuel tank - has bimetal disc to alter switching point of valve |
| JPH0842419A (en) * | 1994-07-29 | 1996-02-13 | Aisan Ind Co Ltd | Impeller type pump |
| CN1621692A (en) * | 2003-11-25 | 2005-06-01 | 三星电子株式会社 | Variable capacity rotary compressor |
| CN101485545A (en) * | 2008-01-15 | 2009-07-22 | 徐佳义 | Air vent valve of steaming tool with button-shaped actuator device |
| CN202355232U (en) * | 2011-11-29 | 2012-08-01 | 孔凡伟 | Pot cover with bimetallic-strip pressure release valve |
| CN103291963A (en) * | 2012-02-23 | 2013-09-11 | 通用汽车环球科技运作有限责任公司 | Diesel fuel temperature relief valve |
| CN204458266U (en) * | 2015-02-06 | 2015-07-08 | 洛阳普瑞曼自动控制技术有限公司 | A kind of thrermostatic bimetal-plate temperature protective device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810074A (en) * | 2016-05-18 | 2016-07-27 | 北京大学口腔医学院 | Crown lengthening surgery training aid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103576810B (en) | Electronic installation | |
| BR112015022574A2 (en) | thermoelectric device | |
| CN204458266U (en) | A kind of thrermostatic bimetal-plate temperature protective device | |
| CN104675674A (en) | Temperature protection device of thermal bimetallic strip | |
| CN207459517U (en) | A kind of circulated water-cooled electrical cabinet cooling system | |
| CN103796483A (en) | Fan module | |
| CN205408344U (en) | Electric box and air conditioner with same | |
| CN106545403A (en) | Thermostat, engine-cooling system and vehicle | |
| CN206077119U (en) | A kind of motor protective housing | |
| CN107357395A (en) | A kind of notebook computer | |
| CN101742872B (en) | Radiation module and electronic device using same | |
| JP2014224742A (en) | High-temperature environment formation device | |
| JP2014224742A5 (en) | ||
| CN104847468A (en) | Engine exhaust device | |
| CN115332651A (en) | Control method, device and equipment for preventing power battery pack from being damaged and storage medium | |
| CN204535391U (en) | A kind of burner hearth of atmosphere batch-type furnace | |
| CN205275641U (en) | Novel annealing stove consumes slowly | |
| CN105400933A (en) | Novel low-consumption annealing furnace | |
| CN201944164U (en) | Oil cooled electromagnetic brake | |
| CN203633035U (en) | Heat dissipation structure and electronic device | |
| US20200182128A1 (en) | Thermostat for engine cooling system | |
| US3024781A (en) | Lubricating oil injectors for petrol engines | |
| CN208502901U (en) | A kind of muffler outer hood on gasoline engine | |
| CN205627988U (en) | High temperature and low temperature alternation proof box | |
| TWI566079B (en) | Electronic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150603 |