CN205542592U - Hot protector of power -off reset - Google Patents
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- CN205542592U CN205542592U CN201620081395.7U CN201620081395U CN205542592U CN 205542592 U CN205542592 U CN 205542592U CN 201620081395 U CN201620081395 U CN 201620081395U CN 205542592 U CN205542592 U CN 205542592U
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Abstract
The utility model discloses a hot protector of power -off reset aims at providing one kind and tests and the high hot protector of power -off reset of security performance from the area, has solved the testing arrangement that does not have of protector, and inconvenient problem is learnt to the trouble, and its technical scheme main points are provided with the PTC device that connects in parallel on movable contact and stationary contact on the shell, it is fixed that the PTC device passes through the steel card, the heater sets up the upper surface of bottom plate, and leave the test port, be equipped with intelligent coating on the shell, the intelligence coating be one or more in photochromism coating, electrochromic coating, the thermochromism coating, has reached and has improved the security performance of using, experimental in advance before the convenient to use, the effect of improvement reliability.
Description
Technical field
The utility model relates to appliance component, more specifically, it relates to power-off restoration thermal protector.
Background technology
Thermal protector is widely used in the fields such as various industrial automation equipment, Aero-Space and various weaponrys.Overload or stall situation occur in the course of the work such as motor, now the electric current of motor coil will increase, cause coil heating, if fault can not get getting rid of, the insulating barrier being possible to cause coil is destroyed, and causes burning of whole motor, even can breaking out of fire, make whole device damage, cause serious security incident.And for example need close supervision engine or the temperature at bullet position on weaponry, prevent the too high damage causing engine of abnormal temperature or bullet portion from the major accidents such as blast occurring.Therefore typically all arrange on these equipment and set foot in temperature protector and carry out the heat condition of monitoring device; once temperature anomaly situation occurs; protector can quickly sense temperature change; and judge; making protector cut off circuit or formation feeds back signal to master control system, alert device operating personnel fix a breakdown in time.
nullAt present，On market (Chinese patent of Application No. CN201110413749.5 discloses a kind of Automatic-resetting miniature overcurrent、Overheat protector)，It connects two binding posts on shell and conductive soleplate respectively，Insulating paper is clamped between shell and conductive soleplate，Fixing connection stationary contact on the through hole offered on insulating paper，Arrange bimetal disk in the enclosure，One end of bimetal disk is fixedly connected on the interior top of shell by iron nail，The other end of bimetal disk is fixing connects movable contact，The utility model using bimetal disk as sensing element，When temperature or electric current raise, produced heat is delivered to bimetal disk，Reach rated function temperature value，Under the effect of bimetal disk，Movable contact just action rapidly，Separate with stationary contact，Loop is i.e. caused to disconnect，Cut off circuit，To reach the overcurrent to electrical equipment or overheated protection.
The Chinese patent one thermal protector that (bulletin) number is CN204242949U is and for example disclosed; it is provided with base plate bottom the insulated enclosure paper of half frame-type structure; shell is arranged on the outer surface of base plate and forms a receiving space; bimetal leaf is positioned at receiving space; the upper end face that one end is fixed in described shell by fixing iron nail; other end bottom is provided with movable contact, and the position corresponding with described movable contact is stationary contact, and heating wire is arranged on the upper surface of described base plate；The internal PTC thermistor used of thermal protector of the present utility model, by the one layer of silver slurry layer of spary respectively of lower surface thereon, forms on PTC conducting surface, alternative metals chip architecture under conducting surface and PTC, effectively reduces the structure space of thermal protector.
But above structure tests device for the neither one of protector; if the bimetal leaf of protector loses due to performance or other faults make its switch failure; and this can not effectively be judged by user in advance; thus it is easily caused the generation of security incident; and it is likely due to employ the protector of fault and cause the damage of equipment; substantially increase the maintenance cost of equipment, from the foregoing, it will be observed that the research to this direction has great application prospect on the basis of existing technology.
Utility model content
The deficiency existed for prior art, the purpose of this utility model is: provide from the high power-off restoration thermal protector of tape test and security performance.
Above-mentioned technical purpose of the present utility model has the technical scheme that a kind of power-off restoration thermal protector; including insulated enclosure paper; described insulated enclosure paper is half frame-type structure; it is provided with base plate bottom described insulated enclosure paper; also including shell, fixing iron nail, bimetal leaf, movable contact, stationary contact and heating wire, described shell is arranged on the outer surface of described base plate and forms a receiving space；Described bimetal leaf is positioned at described receiving space, the upper end face that one end is fixed in described shell by fixing iron nail, other end bottom is provided with movable contact, the position corresponding with described movable contact is provided with stationary contact, the PTC device being parallel on movable contact and stationary contact it is provided with on described shell, described PTC device is fastened by steel, described heating wire is arranged on the upper surface of described base plate, and leave test port, described shell is provided with smart coat, described smart coat is photochromic coating, Electro-Discolor Coating, one or more in able thermochromic.
nullBy above-mentioned setting，Half frame-type structure can be with the space of effectively save enclosure，Increase so that accommodate space，And there are enough spaces can accommodate heating wire、Bimetal leaf、Movable contact and stationary contact etc.，On the other hand，The receiving space formed by base plate and shell effectively can provide heat radiation transmission space for heating wire，Bimetal leaf is just as switch，In order to fault overtemperature protection，Overheated when, the deformation degree due to both is different，Such that it is able to be curved，And then so that movable contact disconnects with stationary contact temperature is too high when，Test before the purpose of heating wire essentially consists in use is set，Different with existing using method，This thermal protector heating wire when using in motor or other circuit does not work，The heating wire of this thermal protector is the performance quality for testing bimetal leaf，Test port is in order to connect external power supply，Now bimetal leaf is if good，Can detect thermal protector cold time is channel status，By external power supply, heating wire is powered，So that heating wire generates heat，So will due to high temperature disconnecting circuit，Make the interface open circuit of thermal protector；If bimetal leaf is bad, then temperature would not be occurred action, such that it is able to directly detect the quality of bimetal leaf, in case using the thermal protector of fault.On the other hand, owing to being provided with smart coat on shell, it is applied in this operative scenario, can effectively carry out fault alarm and instruction, photochromic coating can be used to anti-counterfeiting mark, and ultraviolet power warns, prevent device damage, Electro-Discolor Coating can be in order to detection of electrical leakage and warning, and able thermochromic, in order to indicate temperature conditions, improves security and practicality.
Can be preferably as concrete scheme of the present utility model: described heating wire is tubulose or sheet, described heating wire is also in series with potentiometer.
By above-mentioned setting, increase the contact area of heating wire, simultaneously can be with the caloric value of regulation heating silk by potentiometer, such that it is able to the electrothermal calefactive rate of heating wire is control effectively, it is simple to the test of user uses.
Can be preferably as concrete scheme of the present utility model: on described shell, be also associated with the detection of electrical leakage unit detecting terminals drain conditions and indicating.
By above-mentioned setting, by detection of electrical leakage unit, shell is detected, owing to the binding post of thermal protector there may exist the situation of electric leakage, therefore detection of electrical leakage unit is set and can effectively prevent contact, improve security performance.
Can be preferably as concrete scheme of the present utility model: described detection of electrical leakage unit includes the resistance being connected on shell and is series at the neon lamp of resistance one end, and the other end of described neon lamp is in order to ground connection.
By above-mentioned setting, when having electric leakage to occur when, neon lamp will be breakdown and luminous, thus carries out electric leakage instruction.
Can be preferably as concrete scheme of the present utility model: described detection of electrical leakage unit includes capacity cell, resistance, LED；
The positive pole connected with outer casing of described electric capacity, minus earth；
One end of described resistance connects the positive pole of electric capacity, and the other end connects the anode of LED；
The minus earth of described LED.
By above-mentioned setting, the storage of electricity can be carried out by electric capacity, the when that electric leakage occurring simultaneously, so that LED luminous warning.
Can be preferably as concrete scheme of the present utility model: on the main line at described movable contact place, be in series with tongue tube, described tongue tube is provided with magnetic part, and described magnetic part is arranged on housing in being right against tongue tube and being isolated in a space in order to control the keying of tongue tube.
By above-mentioned setting, tongue tube is as Magnetic Induction switch element, magnetic part near when switch can be made to close, thus reach to connect the effect of circuit, switching off of tongue tube can be made by controlling magnetic part simultaneously, such that it is able to effectively cut off the main line of circuit, play the effect of a similar master switch, need manually to carry out short circuit some uses when, can directly control magnetic part and be controlled the open circuit of circuit, controlled owing to being touchless by magnetic part, therefore safety is compared, do not have the danger of electric shock, improve security performance.
Can be preferably as concrete scheme of the present utility model: described magnetic part is provided with air bag, described air bag is in order to control the spacing between magnetic part and tongue tube.
By above-mentioned setting, owing to the magnetic line of force of magnetic part is skewness, the biggest with near field intensity, away from the non-linear decline of field intensity after a determining deviation, therefore can control this spacing with tongue tube and can effectively play control action, and the most not affect other devices.
Can be preferably as concrete scheme of the present utility model: described movable contact is provided with the striped of lattice-shaped and laminating is fixed on bimetal leaf.
By above-mentioned setting, it is arranged to lattice-shaped and can improve the contact area of movable contact and bimetal leaf, thus improve contact performance, improve reliability.
Can be preferably as concrete scheme of the present utility model: described Electro-Discolor Coating uses multi-layer compound structure, multi-layer compound structure is followed successively by environmental encapsulation layer, electrochromic activity layer, dielectric substrate, electrode layer and substrate layer from top to bottom, a pair auxiliary electrode is installed between electrode layer and dielectric substrate and between electrochromic activity layer and environmental encapsulation layer
Wherein, substrate layer and environmental encapsulation layer are glass, quartz, polyimides, polyester, polyethylene, polypropylene, Merlon, polyurethane or organic siliconresin, electrode layer and auxiliary electrode are gold, aluminium, silver, calcium or indium tin oxide ITO, the conductive materials of dielectric substrate is lithium perchlorate, ionic liquid, trifluoromethyl sulfonic acid lithium or sodium chloride, electrochromic activity layer be in polyaniline, polythiophene or polypyrrole one or both be combined.
By above-mentioned setting, electrochromism and reflectivity, the controllable variations of emissivity of electrochromic device is achieved by voltage-regulation, by DC powered, can get the assorted Electro-Discolor Coating such as transparent, golden yellow, light green, dark green, blackish green, and possess different reflectivity and emissivity.
Can be preferably as concrete scheme of the present utility model: described photochromic coating, Electro-Discolor Coating, able thermochromic, piezochromism coating interval is arranged to bar shaped.
By above-mentioned setting, photochromic coating, Electro-Discolor Coating, able thermochromic, piezochromism coating can exist simultaneously, can effectively indicate various information after arranging layer bar shaped arrangement.
In sum, the utility model has the advantages that
1, improve the security performance used, it is simple to the pretesting before use, improve reliability；
2, use is more convenient, and feedback instruction information is more directly perceived.
Accompanying drawing explanation
Fig. 1 is the present embodiment one structural blast figure；
Fig. 2 is the present embodiment one part enlarged drawing；
Fig. 3 is the circuit theory diagrams of the present embodiment one；
Fig. 4 is the circuit theory diagrams of the present embodiment two.
In figure 1, insulated enclosure paper；2, base plate；3, shell；4, fixing iron nail；5, bimetal leaf；6, movable contact；7, stationary contact；8, heating wire；9, PTC device；10, steel card；11, smart coat；12, air bag；13, striped；A1, test port；Rp, potentiometer；14, detection of electrical leakage unit；Ne, neon lamp；C, capacity cell；R, resistance；Kr, tongue tube；B, magnetic part.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Embodiment 1: as it is shown in figure 1, a kind of power-off restoration thermal protector, including insulated enclosure paper 1; described insulated enclosure paper 1 is half frame-type structure, leaves a blank in the middle of insulated enclosure paper 1, and both sides turnover is upwards molded; and on corner, leave chamfering, it is simple to assemble and improve seal degree.Bottom described insulated enclosure paper 1, it is provided with base plate 2, also includes shell 3, fixing iron nail 4, bimetal leaf 5, movable contact 6, stationary contact 7 and heating wire 8,
As in figure 2 it is shown, heating wire 8 is tubulose or sheet, tubular structure current heating is relatively stable, and the radiation of sheet heating area is relatively wide, it is respectively arranged with advantage, in order to improve heating swept area, be arranged to serpentine, movable contact 6 be provided with lattice-shaped striped 13 and fit be fixed on bimetal leaf 5.It is arranged to lattice-shaped and can improve movable contact 6 and the contact area of bimetal leaf 5, thus improve contact performance, improve reliability.
In conjunction with Fig. 1, shown in 2, shell 3 is arranged on the outer surface of described base plate 2 and forms one and accommodate space；Described bimetal leaf 5 is positioned at described receiving space, one end is fixed on the upper end face in described shell 3 by fixing iron nail 4, other end bottom is provided with movable contact 6, the position corresponding with described movable contact 6 is provided with stationary contact 7, the PTC device 9 being parallel on movable contact 6 and stationary contact 7 it is provided with on described shell 3, described PTC device 9 is fixed by steel card 10, described heating wire 8 is arranged on the upper surface of described base plate 2, and leave test port a1, described shell 3 is provided with smart coat 11, described smart coat 11 is photochromic coating, Electro-Discolor Coating, able thermochromic, one or more in piezochromism coating.
As it is shown on figure 3, bimetal leaf 5 part of thermal protector forms parallel circuit with PTC thermistor R, then with load in series, load is as a example by motor M, and when loading properly functioning, PTC thermistor R will not produce high temperature；The high temperature or the big electric current that produce when load abnormal can make thermal protector open circuit, and now PTC thermistor R can produce high temperature and high value (high temperature of PTC thermistor R can make thermal protector be always maintained in off state), loads out of service；The movable contact 6 of bimetal leaf 5 closes with stationary contact 7; circuit is on; generate heat for some reason when making electrical appliance; when temperature rises to this product rated function temperature value; bimetal leaf 5 is heated generation internal stress and rapidly action, pushes the movable contact 6 being arranged on bimetal leaf 5 open, cuts off the electricity supply; motor quits work, thus plays superheat protecting function.After power supply is disconnected manually, PTC thermistor R starts cooling, and after certain time lowers the temperature, thermal protector automatically resets, and is again switched on power supply, load operation.
Simultaneously; movable contact 6 and the stationary contact 7 of the bimetal leaf 5 of thermal protector of the present utility model may be designed in normally opened; when making electrical appliance reach uniform temperature; the movable contact 6 of bimetal leaf 5 turns on stationary contact 7; the utility model can be set to closed type or open type according to the needs of product function.
nullBy above-mentioned setting，Half frame-type structure can be with the space within effectively save shell 3，Increase so that accommodate space，And there are enough spaces can accommodate heating wire 8、Bimetal leaf 5、Movable contact 6 and stationary contact 7 etc.，On the other hand，The receiving space formed by base plate 2 and shell 3 effectively can provide heat radiation transmission space for heating wire 8，Bimetal leaf 5 is just as switch，In order to fault overtemperature protection，Overheated when, the deformation degree due to both is different，Such that it is able to be curved，And then so that movable contact 6 disconnects with stationary contact 7 temperature is too high when，Test before the purpose of heating wire 8 essentially consists in use is set，Different with existing using method，This thermal protector heating wire 8 when using in motor or other circuit does not work，The heating wire 8 of this thermal protector is the performance quality for testing bimetal leaf 5，Port a1 is in order to connect external power supply in test，Now bimetal leaf 5 is if good，Can detect thermal protector cold time is channel status，By external power supply, heating wire 8 is powered，So that heating wire 8 generates heat，So will due to high temperature disconnecting circuit，Make the interface open circuit of thermal protector；If bimetal leaf 5 is bad, then temperature would not be occurred action, such that it is able to directly detect the quality of bimetal leaf 5, in case using the thermal protector of fault.On the other hand, owing to being provided with smart coat 11 on shell 3, it is applied in this operative scenario, can effectively carry out fault alarm and instruction, photochromic coating can be used to anti-counterfeiting mark, ultraviolet power warns, and prevents device damage, and Electro-Discolor Coating can be in order to detection of electrical leakage and warning, able thermochromic is in order to indicate temperature conditions, piezochromism coating can illustrate stressing conditions, can directly illustrate to mechanical shock and collsion damage, to user, to improve security and practicality.
Can optimize further in the circuit of Fig. 3, heating wire 8 can be with serial or parallel connection potentiometer Rp.If external testing uses constant-current source, then use the mode of potentiometer Rp series connection that the voltage of heating wire 8 is changed, such that it is able to change the actual power of heating wire 8.And if the test power supply provided for outside is constant pressure source, then in the way of using potentiometer Rp in parallel, heating wire can be carried out dividing potential drop to regulate the actual power of heating wire.Increase the contact area of heating wire 8, simultaneously can be with the caloric value of regulation heating silk 8 by potentiometer Rp, such that it is able to the electrothermal calefactive rate of heating wire 8 is control effectively, it is simple to the test of user uses.
A test can be carried out before the use by arranging of heating wire, such that it is able to the quality of effective verifying parts.Test port a1 is for connection to external test power supply.
The detection of electrical leakage unit 14 detecting terminals drain conditions and indicating it is also associated with on shell 3.By detection of electrical leakage unit 14, shell 3 is detected, owing to the binding post of thermal protector there may exist the situation of electric leakage, therefore detection of electrical leakage unit 14 is set and can effectively prevent contact, improve security performance.
Detection of electrical leakage unit 14 can be played the function of auxiliary display by the Electro-Discolor Coating in smart coat 11, and in the case of there is electric leakage on shell 3, Electro-Discolor Coating will occur the change of color due to the change of voltage.It is used to refer to drain conditions, improves vigilance and the security performance of user.
The first circuit implementation is as it is shown on figure 3, detection of electrical leakage unit 14 includes the resistance R being connected on shell 3 and is series at the neon lamp Ne of resistance R one end, and the other end of described neon lamp Ne is in order to ground connection.When having electric leakage to occur when, neon lamp Ne will be breakdown and luminous, thus carries out electric leakage instruction.
As shown in Figure 4, detection of electrical leakage unit 14 includes capacity cell C, resistance R, LED to the second circuit implementation；The positive pole connected with outer casing 3 of described electric capacity, minus earth；One end of described resistance R connects the positive pole of electric capacity, and the other end connects the anode of LED；The minus earth of described LED.
By above-mentioned setting, the storage of electricity can be carried out by electric capacity, the when that electric leakage occurring simultaneously, so that LED luminous warning.
Can be optimized further as concrete scheme class of the present utility model, from said structure, common thermal protector is to have self-reparability, but in the most once load temperature is down to certain limit, protector meeting automatic reclosing, and the fault loaded does not has been resolved at all, increase application risk virtually, therefore technique scheme is improved, it is in series with tongue tube Kr on the main line at described movable contact 6 place, described tongue tube Kr is provided with magnetic part B, described magnetic part B is arranged on housing in being right against tongue tube Kr and being isolated in a space in order to control the keying of tongue tube Kr.Magnetic part B is provided with air bag 12, and described air bag 12 is in order to control the spacing between magnetic part B and tongue tube Kr.Magnetic part B is magnet or magnetic bead, and small volume may be mounted in shell 3.
By above-mentioned setting, tongue tube Kr is as Magnetic Induction switch element, magnetic part B near when switch can be made to close, thus reach to connect the effect of circuit, switching off of tongue tube Kr can be made by controlling magnetic part B simultaneously, such that it is able to effectively cut off the main line of circuit, play the effect of a similar master switch, need manually to carry out short circuit some uses when, can directly control magnetic part B and be controlled the open circuit of circuit, controlled owing to being touchless by magnetic part B, therefore safety is compared, do not have the danger of electric shock, improve security performance.Owing to the magnetic line of force of magnetic part B is skewness, the biggest with near field intensity, away from the non-linear decline of field intensity after a determining deviation, therefore can control this spacing with tongue tube Kr and can effectively play control action, and the most not affect other devices.
For above-mentioned smart coat 11, Electro-Discolor Coating uses multi-layer compound structure, multi-layer compound structure is followed successively by environmental encapsulation layer, electrochromic activity layer, dielectric substrate, electrode layer and substrate layer from top to bottom, a pair auxiliary electrode is installed between electrode layer and dielectric substrate and between electrochromic activity layer and environmental encapsulation layer
Wherein, substrate layer and environmental encapsulation layer are glass, quartz, polyimides, polyester, polyethylene, polypropylene, Merlon, polyurethane or organic siliconresin, electrode layer and auxiliary electrode are gold, aluminium, silver, calcium or indium tin oxide ITO, the conductive materials of dielectric substrate is lithium perchlorate, ionic liquid, trifluoromethyl sulfonic acid lithium or sodium chloride, electrochromic activity layer be in polyaniline, polythiophene or polypyrrole one or both be combined.
By above-mentioned setting, electrochromism and reflectivity, the controllable variations of emissivity of electrochromic device is achieved by voltage-regulation, by DC powered, can get the assorted Electro-Discolor Coating such as transparent, golden yellow, light green, dark green, blackish green, and possess different reflectivity and emissivity.
The selection of photochromic coating, Electro-Discolor Coating, able thermochromic, piezochromism coating is multiple can be partitioned into bar shaped setting.Photochromic coating, Electro-Discolor Coating, able thermochromic, piezochromism coating can exist simultaneously, can effectively indicate various information after arranging layer bar shaped arrangement.
Illustrating: photochromic coating, component is constituted: polyurethane resin 55-70 part, coupling agent 2-5 part, curing agent 8-15 part, tungstic acid 8-15 part, titanium oxide 5-12 part, alumina silicate 3-6 part and solvent 10-22 part.
Electro-Discolor Coating, multi-layer compound structure is used to be followed successively by environmental encapsulation layer, electrochromic activity layer, dielectric substrate, electrode layer and substrate layer from top to bottom, a pair auxiliary electrode is installed between electrode layer and dielectric substrate and between electrochromic activity layer and environmental encapsulation layer
Wherein, substrate layer and environmental encapsulation layer are glass, quartz, polyimides, polyester, polyethylene, polypropylene, Merlon, polyurethane or organic siliconresin, electrode layer and auxiliary electrode are gold, aluminium, silver, calcium or indium tin oxide ITO, the conductive materials of dielectric substrate is lithium perchlorate, ionic liquid, trifluoromethyl sulfonic acid lithium or sodium chloride, electrochromic activity layer be in polyaniline, polythiophene or polypyrrole one or both be combined.
Able thermochromic, i.e. thermo-color mainly include phase-change coating and discoloration coating, and phase-change coating is roughly divided into following several.A kind of is by selecting the crystalline material that can melt under set point of temperature to make temperature indicator, utilizes coating color before and after melting to change and measures body surface temperature.Cucumber is at room temperature to be creamy white during solid state, temperature raises when reaching fusing point, this material melts, become water white transparency state, such as stearate is melt into colourless transparent liquid, if they are coated onto on dark object, it are white less than 100 DEG C, can present, during higher than 100 DEG C, the color that object is original.Another kind is absorption-type, selects the heat-sensitive materials with definite melting point to mix with colored pigment, and when reaching melting temperature, owing to colored pigment adsorbs, system color changes, and reaches thermometric purpose.Such as, dimethylamino benzene-azo-benzene 15 parts, titanium dioxide 4.5 parts, dimethyl cellulose 2.5 parts, water, melted at 114 DEG C, yellow become orange.Also having some melt substances, such as aliphatic higher alcohols, fatty acid, amino acid, ester, ether etc. occur solidification melting phenomenon, the electronics of control developer composition to accept reaction in a certain temperature so that it is reversible color；Such as when higher aliphatic is mixed and made into reversible thermocoating at peacock green lactone and 4 Hydroxycoumarins, its colour developing colour killing melts with product solidification and produces, during low temperature, colour-changing agent peacock green lactone supplies 4 Hydroxycoumarin electronics and develops the color, and occurring melted when high temperature, peacock green lactone retains electronics and forms very weak color.Its discoloring temperature is the temperature in constituent near the fusing point of meltbility compound, meltbility material be colour developing with the effect of colour killing and exist, can as the material of meltbility compound a lot, mainly organic compound, wherein aliphatic higher alcohols is more preferable.It is to have the electro organic compound with colour rendering of release that the electronics of one of this kind of thermo-color component gives component, another component is that electronics accepts component, great majority are that effect is to absorb release electronics with hydroxy compounds and derivative thereof and phenolic hydroxyl-compounds or derivative.This two component is that oxidation-reduction potential is close, and when utilizing temperature change, both oxidation-reduction potentials are different relative to intensity of variation so that the direction of redox reaction can change with temperature and change.
Discoloration coating indicates temperature mainly by the color change of the thermochromism of color generation significant change during temperature change, and the discoloration of thermochromism plays a decisive role, and inorganic thermochromism is mainly used in making discoloration coating.
This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; the present embodiment can be made after reading this specification by those skilled in the art as required does not has the amendment of creative contribution, but as long as all being protected by Patent Law in right of the present utility model.
Claims (10)
1. a power-off restoration thermal protector; including insulated enclosure paper (1); described insulated enclosure paper (1) is half frame-type structure; described insulated enclosure paper (1) bottom is provided with base plate (2); also including shell (3), fixing iron nail (4), bimetal leaf (5), movable contact (6), stationary contact (7) and heating wire (8), described shell (3) is arranged on the outer surface of described base plate (2) and forms a receiving space；Described bimetal leaf (5) is positioned at described receiving space, one end is fixed on the upper end face in described shell (3) by fixing iron nail (4), other end bottom is fixedly connected with movable contact (6), the position corresponding with described movable contact (6) arranges stationary contact (7), it is characterized in that: on described shell (3), be provided with the PTC device (9) being parallel on movable contact (6) and stationary contact (7), described PTC device (9) is fixed by steel card (10), described heating wire (8) is arranged on the upper surface of described base plate (2), and leave test port (a1), described shell (3) is provided with smart coat (11), described smart coat (11) is photochromic coating, Electro-Discolor Coating, one or more in able thermochromic.
Power-off restoration thermal protector the most according to claim 1, it is characterised in that: described heating wire (8) is tubulose or sheet, and described heating wire (8) is also in series with potentiometer (Rp).
Power-off restoration thermal protector the most according to claim 1, it is characterised in that: it is also associated with the detection of electrical leakage unit (14) detecting terminals drain conditions and indicating on described shell (3).
Power-off restoration thermal protector the most according to claim 3; it is characterized in that: described detection of electrical leakage unit (14) includes the resistance (R) being connected on shell (3) and is series at the neon lamp (Ne) of resistance (R) one end, and the other end of described neon lamp (Ne) is in order to ground connection.
Power-off restoration thermal protector the most according to claim 3, it is characterised in that: described detection of electrical leakage unit (14) includes capacity cell (C), resistance (R), LED；
The positive pole connected with outer casing (3) of described electric capacity, minus earth；
One end of described resistance (R) connects the positive pole of electric capacity, and the other end connects the anode of LED；
The minus earth of described LED.
6. according to the arbitrary described power-off restoration thermal protector of claim 1 to 5; it is characterized in that: on the main line at described movable contact (6) place, be in series with tongue tube (Kr); described tongue tube (Kr) is provided with magnetic part (B), and described magnetic part (B) is arranged on housing in being right against tongue tube (Kr) and being isolated in a space in order to control the keying of tongue tube (Kr).
Power-off restoration thermal protector the most according to claim 6; it is characterized in that: described magnetic part (B) is provided with air bag (12), described air bag (12) is in order to control the spacing between magnetic part (B) and tongue tube (Kr).
Power-off restoration thermal protector the most according to claim 1, it is characterised in that: described movable contact (6) be provided with lattice-shaped striped (13) and fit be fixed on bimetal leaf (5).
Power-off restoration thermal protector the most according to claim 1; it is characterized in that: described Electro-Discolor Coating uses multi-layer compound structure; multi-layer compound structure is followed successively by environmental encapsulation layer, electrochromic activity layer, dielectric substrate, electrode layer and substrate layer from top to bottom; a pair auxiliary electrode is installed between electrode layer and dielectric substrate and between electrochromic activity layer and environmental encapsulation layer
Wherein, substrate layer and environmental encapsulation layer are glass, quartz, polyimides, polyester, polyethylene, polypropylene, Merlon, polyurethane or organic siliconresin, electrode layer and auxiliary electrode are gold, aluminium, silver, calcium or indium tin oxide ITO, the conductive materials of dielectric substrate is lithium perchlorate, ionic liquid, trifluoromethyl sulfonic acid lithium or sodium chloride, and electrochromic activity layer is the one in polyaniline, polythiophene or polypyrrole.
Power-off restoration thermal protector the most according to claim 1, it is characterised in that: described photochromic coating, Electro-Discolor Coating, able thermochromic, piezochromism coating interval is arranged to bar shaped.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620081395.7U CN205542592U (en) | 2016-01-28 | 2016-01-28 | Hot protector of power -off reset |
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| CN201620081395.7U CN205542592U (en) | 2016-01-28 | 2016-01-28 | Hot protector of power -off reset |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529216A (en) * | 2016-01-28 | 2016-04-27 | 苏州工业园区凯恩电子科技有限公司 | Outage reset thermal protector |
| CN109148218A (en) * | 2018-09-03 | 2019-01-04 | 佛山市高明欧电子制造有限公司 | A kind of band PTC power-off restoration temperature control device with mobile monitoring function |
| CN112216554A (en) * | 2020-09-28 | 2021-01-12 | 常熟新都安电器股份有限公司 | Overcurrent thermal protector |
-
2016
- 2016-01-28 CN CN201620081395.7U patent/CN205542592U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529216A (en) * | 2016-01-28 | 2016-04-27 | 苏州工业园区凯恩电子科技有限公司 | Outage reset thermal protector |
| CN109148218A (en) * | 2018-09-03 | 2019-01-04 | 佛山市高明欧电子制造有限公司 | A kind of band PTC power-off restoration temperature control device with mobile monitoring function |
| CN109148218B (en) * | 2018-09-03 | 2019-09-24 | 佛山市高明欧一电子制造有限公司 | A kind of band PTC power-off restoration temperature control device with mobile monitoring function |
| CN112216554A (en) * | 2020-09-28 | 2021-01-12 | 常熟新都安电器股份有限公司 | Overcurrent thermal protector |
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