CN105529216B - Power-off restoration thermal protector - Google Patents
Power-off restoration thermal protector Download PDFInfo
- Publication number
- CN105529216B CN105529216B CN201610055995.0A CN201610055995A CN105529216B CN 105529216 B CN105529216 B CN 105529216B CN 201610055995 A CN201610055995 A CN 201610055995A CN 105529216 B CN105529216 B CN 105529216B
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- Prior art keywords
- thermal protector
- shell
- power
- layer
- heating wire
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
- H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
- H01H37/5427—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting encapsulated in sealed miniaturised housing
Abstract
The invention discloses a kind of power-off restoration thermal protector, aim to provide a kind of from tape test and the high power-off restoration thermal protector of security performance, solve the neither one test device of protector, the problem of failure knows inconvenience, its drip irrigation device is that the PTC devices being parallel on movable contact and stationary contact are provided with shell, the PTC devices are fixed by steel card, the heating wire is arranged on the upper surface of the bottom plate, and leave test port, the shell is provided with smart coat, the smart coat is photochromic coating, Electro-Discolor Coating, one or more in able thermochromic, the security performance for improving and using is reached, pretesting before being easy to use, improve the effect of reliability.
Description
Technical field
The present invention 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 equipments, Aero-Space and various weaponrys.Such as
Motor occurs overloading in the course of the work or stall situation, and now the electric current of motor coil will increase, and cause coil heating,
If failure cannot be excluded, it is possible to cause the insulating barrier of coil to be destroyed, cause burning for whole motor, or even can send out
Light a fire calamity, damage whole equipment, cause serious security incident.And for example needed on weaponry close supervision engine or
The temperature at bullet position, prevents the too high damage for causing engine of abnormal temperature or bullet portion from occurring the major accidents such as blast.Cause
General all set sets foot in temperature protector and carrys out the heat condition of monitoring device in this these equipment, once there is temperature anomaly shape
Condition, protector can quickly sense temperature change, and judge, and protector is cut off circuit or is formed and feed back signal to master control
System processed, alert device operating personnel fix a breakdown in time.
At present, in the market（Application No. CN201110413749.5 Chinese patent disclose one kind automatically reset it is micro-
Type overcurrent, overheat protector）, it connects two binding posts, shell and conductive soleplate respectively on shell and conductive soleplate
Between clamp insulating paper, be fixedly connected with stationary contact on the through hole opened up on insulating paper, bimetal disk arranged in shell, it is double
One end of metal disk is fixedly connected on the interior top of shell by iron nail, and the other end of bimetal disk is fixedly connected with dynamic touch
Point, the present invention is using bimetal disk as sensing element, and when temperature or electric current are raised, produced heat transfer is to bimetallic
Disk, reaches rated function temperature value, in the presence of bimetal disk, and movable contact is just acted rapidly, is separated with stationary contact, i.e.,
Cause loop to disconnect, circuit is cut off, to reach the protection to the overcurrent or overheat of electrical equipment.
A kind of thermal protector of Chinese patent that (bulletin) number is CN204242949U, the insulation of half frame-type structure are and for example disclosed
Sealed paper bottom is provided with bottom plate, and the outer surface that shell is arranged on bottom plate forms a receiving space, and bimetal leaf, which is located at, to be accommodated
In space, one end is fixed on the upper top surface in the shell by fixed iron nail, and other end bottom is provided with movable contact, and described
The corresponding position of movable contact is stationary contact, and heating wire is arranged on the upper surface of the bottom plate；Inside the thermal protector of the present invention
The PTC thermistor of use, by distinguishing one layer of silver slurry layer of spary in its upper and lower surface, forms on PTC and is led under conducting surface and PTC
Electric face, alternative metals chip architecture, the effective structure space for reducing thermal protector.
But above structure is for the neither one test device of protector, if the bimetal leaf of protector is due to performance
Lose or other failures cause its switch failure, and user can not be effectively judged this in advance, so as to be easily caused peace
The generation of full accident, and it is possible to the damage of equipment is caused due to the protector using failure, equipment is substantially increased
Maintenance cost, from the foregoing, it will be observed that the research to this direction has great application prospect on the basis of existing technology.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the invention to：There is provided from tape test and high disconnected of security performance
Reset thermal protector.
The present invention above-mentioned technical purpose technical scheme is that：A kind of power-off restoration Thermal protection
Device, including insulated enclosure paper, the insulated enclosure paper are half frame-type structure, and the insulated enclosure paper bottom is provided with bottom plate,
Also include shell, fixed iron nail, bimetal leaf, movable contact, stationary contact and heating wire, the shell is arranged on the bottom plate
Outer surface forms a receiving space；The bimetal leaf is located in the receiving space, and one end is fixed on by fixed iron nail
Upper top surface in the shell, other end bottom is provided with movable contact, and the position corresponding with the movable contact is provided with stationary contact
The PTC devices being parallel on movable contact and stationary contact are provided with point, the shell, the PTC devices are fixed by steel card, institute
State heating wire and be arranged on the upper surface of the bottom plate, and leave test port；Wherein, test port is to connect external power supply,
Heating wire is powered by external power supply；The shell is provided with smart coat, and the smart coat is photochromic
One or more in coating, Electro-Discolor Coating, able thermochromic.
By above-mentioned setting, half frame-type structure can be with the space of effectively save enclosure, so that receiving space increases
Greatly, and there are enough spaces to accommodate heating wire, bimetal leaf, movable contact and stationary contact etc., on the other hand, pass through bottom plate
With shell formation receiving space can effectively for heating wire provide heat radiate transmit space, bimetal leaf just as switch,
To failure overtemperature protection, because both deformation degree are different when overheat, so as to be bent, Jin Er
Temperature can cause movable contact to be disconnected with stationary contact when too high, the purpose for setting heating wire essentially consists in the survey before use
Examination, different with existing application method, this thermal protector heating wire when using in motor or other circuits does not work,
The heating wire of this thermal protector be for test bimetal leaf performance quality, test port to connect external power supply,
Now bimetal leaf is if good, can detect that thermal protector is channel status cold when, pass through external power supply
To be powered to heating wire, so that heating wire is generated heat, then will due to high temperature disconnecting circuit so that heat protect
Protect the interface open circuit of device；If bimetal leaf is bad, then temperature would not be acted, so as to directly detect
Go out the quality of bimetal leaf, to prevent using the thermal protector of failure.On the other hand, due to being provided with smart coat on shell,
Applied in this operative scenario, can effectively carry out fault alarm and instruction, photochromic coating can be purple for anti-counterfeiting mark
Outside line power warning, prevents device damage, and Electro-Discolor Coating can be used to detection of electrical leakage and warn, and able thermochromic is used to
Temperature conditions is indicated, security and practicality is improved.
Can be preferably as concrete scheme of the invention：The heating wire is tubulose or sheet, and the heating wire is also gone here and there
Join or be parallel with potentiometer.
By above-mentioned setting, increase the contact area of heating wire, while can be with the heating of regulation heating silk by potentiometer
Amount, control effectively so as to the electrothermal calefactive rate to heating wire, is easy to the test of user to use.
Can be preferably as concrete scheme of the invention：It is also associated with detecting terminals electric leakage feelings on the shell
Condition and the detection of electrical leakage unit indicated.
By above-mentioned setting, shell is detected by detection of electrical leakage unit, because the binding post of thermal protector has
The situation of electric leakage is there may be, therefore sets detection of electrical leakage unit effectively to prevent contact, security performance is improved.
Can be preferably as concrete scheme of the invention：The detection of electrical leakage unit includes the resistance being connected on shell
With the neon lamp for being series at resistance one end, the other end of the neon lamp is to be grounded.
By above-mentioned setting, when having electric leakage to occur, neon lamp will be breakdown and luminous, refers to so as to carry out electric leakage
Show.
Can be preferably as concrete scheme of the invention：The detection of electrical leakage unit includes capacity cell, resistance, LED
Lamp；
The positive pole connected with outer casing of the electric capacity, negative pole ground connection；
One end of the resistance connects the positive pole of electric capacity, and the other end connects the anode of LED；
The minus earth of the LED.
By above-mentioned setting, the storage of electricity can be carried out by electric capacity, while when electric leakage occurs, can cause
LED luminous warning.
Can be preferably as concrete scheme of the invention：Tongue tube, institute are in series with main line where the movable contact
Tongue tube is stated provided with magnetic part, the magnetic part, which is arranged on housing to be right against tongue tube and be isolated in a space, to be used to
Control the keying of tongue tube.
By above-mentioned setting, tongue tube as Magnetic Induction switch element, magnetic part close to when can make switch
Closure, so as to reach the effect for connecting circuit, while can by controlling magnetic part so that tongue tube is switched off so that
The main line of circuit can be effectively cut off, plays a part of a similar master switch, needs to carry out manually when some are used
Carry out short circuit, can directly control magnetic part to be controlled the open circuit of circuit, by magnetic part control due to be it is touchless,
Therefore it is relatively safer, be not in the danger of electric shock, improve security performance.
Can be preferably as concrete scheme of the invention：The magnetic part is provided with air bag, and the air bag is to control
Spacing between magnetic part and tongue tube.
It is bigger with close field strength because the magnetic line of force of magnetic part is skewness by above-mentioned setting, between certain
Field strength is non-linear away from after declines, therefore the spacing of this and tongue tube can be controlled to effectively play control action, and again
Other devices are not influenceed.
Can be preferably as concrete scheme of the invention：Striped of the movable contact provided with lattice-shaped and fixation of fitting
In on bimetal leaf.
By above-mentioned setting, the contact area of movable contact and bimetal leaf can be improved by being arranged to lattice-shaped, so as to improve
Contact performance, improves reliability.
Can be preferably as concrete scheme of the invention：The Electro-Discolor Coating uses multi-layer compound structure, multilayer
Composite construction is followed successively by environmental encapsulation layer, electrochromic activity layer, dielectric substrate, electrode layer and substrate layer from top to bottom, in electricity
A pair of auxiliary electrodes are installed between electrochromic activity layer and environmental encapsulation layer between pole layer and dielectric substrate,
Wherein, substrate layer and environmental encapsulation layer are glass, quartz, polyimides, polyester, polyethylene, polypropylene, poly- carbonic acid
Ester, polyurethane or organic siliconresin, electrode layer and auxiliary electrode be gold, aluminium, silver, calcium or indium tin oxide ITO, dielectric substrate
Conductive materials are lithium perchlorate, ionic liquid, trifluoromethyl sulfonic acid lithium or sodium chloride, and electrochromic activity layer is polyaniline, gathered
One or both of thiophene or polypyrrole are combined.
By above-mentioned setting, electrochromism and reflectivity, the emissivity of electrochromic device are realized by voltage-regulation
Controllable variations, with DC powered, can obtain the assorted Electro-Discolor Coating such as transparent, golden yellow, light green, dark green, blackish green, and have
Standby different reflectivity and emissivity.
Can be preferably as concrete scheme of the invention：The photochromic coating, Electro-Discolor Coating, thermochromism
Coating, a variety of intervals of selection are in strip setting.
By above-mentioned setting, photochromic coating, Electro-Discolor Coating, able thermochromic, piezochromism coating can be with
Exist simultaneously, set layer bar shaped effectively to indicate various information after arranging.
In summary, the invention has the advantages that：
1st, the security performance used is improved, the pretesting before being easy to use improves reliability；
2nd, using more convenient, configured information is fed back more directly perceived.
Brief description of the drawings
Fig. 1 is the Structure explosion diagram of the present embodiment one；
Fig. 2 is the part enlarged drawing of the present embodiment one；
Fig. 3 is the circuit theory diagrams of the present embodiment one；
Fig. 4 is the circuit theory diagrams of the present embodiment two.
1 in figure, insulated enclosure paper；2nd, bottom plate；3rd, shell；4th, fixed iron nail；5th, bimetal leaf；6th, movable contact；7th, stationary contact
Point；8th, heating wire；9th, PTC devices；10th, steel card；11st, smart coat；12nd, air bag；13rd, striped；A1, test port；Rp, current potential
Device；14th, detection of electrical leakage unit；Ne, neon lamp；C, capacity cell；R, resistance；Kr, tongue tube；B, magnetic part.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
Embodiment 1：As shown in figure 1, a kind of power-off restoration thermal protector, including insulated enclosure paper 1, the insulated enclosure paper
1 is to be left a blank in the middle of half frame-type structure, insulated enclosure paper 1, the upward shaping of both sides turnover, and leaves chamfering on corner, is easy to dress
Match somebody with somebody and improve seal degree.The bottom of insulated enclosure paper 1 is provided with bottom plate 2, also includes shell 3, fixed iron nail 4, double
Sheet metal 5, movable contact 6, stationary contact 7 and heating wire 8,
As shown in Fig. 2 heating wire 8 is tubulose or sheet, tubular structure current heating is relatively stable, and sheet heating area
Radiation is wider, respectively there is advantage, in order to improve heating swept area, sets in "S" shape, movable contact 6 is provided with the striped of lattice-shaped
13 and fit be fixed on bimetal leaf 5.The contact area of movable contact 6 and bimetal leaf 5 can be improved by being arranged to lattice-shaped, from
And contact performance is improved, improve reliability.
With reference to shown in Fig. 1,2, the outer surface that shell 3 is arranged on the bottom plate 2 forms a receiving space；The bimetallic
Piece 5 is located in the receiving space, and one end is fixed on the upper top surface in the shell 3 by fixed iron nail 4, and other end bottom is set
Be equipped with movable contact 6, the position corresponding with the movable contact 6 be provided with stationary contact 7, the shell 3 be provided be parallel to it is dynamic
PTC devices 9 on contact 6 and stationary contact 7, the PTC devices 9 are fixed by steel card 10, and the heating wire 8 is arranged on the bottom
The upper surface of plate 2, and test port a1 is left, the shell 3 is provided with smart coat 11, and the smart coat 11 is light-induced variable
One or more in color coating, Electro-Discolor Coating, able thermochromic, piezochromism coating.
As shown in figure 3, the part of bimetal leaf 5 of thermal protector and PTC thermistor R formation parallel circuits, then with bearing
Series connection is carried, is loaded by taking motor M as an example, PTC thermistor R will not produce high temperature when loading normal operation；Produced when load abnormal
Raw high temperature or high current can make thermal protector open circuit, and now PTC thermistor R can produce high temperature and high value (PTC temperature-sensitives electricity
Resistance R high temperature can be such that thermal protector is always maintained in off state), load out of service；The movable contact 6 of bimetal leaf 5 with it is quiet
Contact 7 is closed, and circuit is on, double when temperature rises to the product rated function temperature value when being generated heat for some reason using electrical equipment
Sheet metal 5 is heated to be produced internal stress and acts rapidly, is pushed the movable contact 6 being arranged on bimetal leaf 5 open, is cut off the electricity supply, motor
It is stopped, so as to play superheat protecting function.After power supply is disconnected manually, PTC thermistor R starts cooling, by one
Thermal protector after cooling of fixing time automatically resets, and is again switched on power supply, load operation.
Meanwhile, movable contact 6 and the stationary contact 7 of the bimetal leaf 5 of thermal protector of the invention may be designed in it is normally opened,
When reaching certain temperature using electrical equipment, movable contact 6 and the stationary contact 7 of bimetal leaf 5 are turned on, and the present invention can be according to product
The need for function, closed type or open type are set to.
By above-mentioned setting, half frame-type structure can be with the space inside effectively save shell 3, so that receiving space increases
Greatly, and there are enough spaces to accommodate heating wire 8, bimetal leaf 5, movable contact 6 and stationary contact 7 etc., on the other hand, pass through
Bottom plate 2 and shell 3 formation receiving space can effectively for heating wire 8 provide heat radiation transmission space, bimetal leaf 5 as
It is curved so as to carry out because both deformation degree are different when overheat to failure overtemperature protection with switch
Song, and then when temperature is too high movable contact 6 can be caused to be disconnected with stationary contact 7, the purpose for setting heating wire 8 is essentially consisted in
Test before use, different with existing application method, this thermal protector generates heat when using in motor or other circuits
Silk 8 is not worked, and the heating wire 8 of this thermal protector is the performance quality for testing bimetal leaf 5, and test port a1 is used
To connect external power supply, now bimetal leaf 5 is if good, can detect that thermal protector is path shape cold when
State, is powered by external power supply to heating wire 8, so that heating wire 8 is generated heat, then will be due to high temperature
Disconnecting circuit so that the interface open circuit of thermal protector；If bimetal leaf 5 is bad, then temperature would not be moved
Make, so as to directly detect the quality of bimetal leaf 5, to prevent using the thermal protector of failure.On the other hand, in shell 3
On due to being provided with smart coat 11, it is photochromic applied in this operative scenario, can effectively carry out fault alarm and instruction
Coating can prevent device damage, Electro-Discolor Coating can be used to detection of electrical leakage for anti-counterfeiting mark, ultraviolet power warning
With warn, able thermochromic is to indicate temperature conditions, and piezochromism coating can illustrate stressing conditions, to mechanical shock and
Collsion damage can directly be illustrated, to user, to improve security and practicality.
Can further it optimize in Fig. 3 circuit, heating wire 8 can be with serial or parallel connection potentiometer Rp.If outside
Test uses constant-current source, then uses the mode that potentiometer Rp connects so that the voltage of heating wire 8 changes, so as to change
The actual power of heating wire 8.And if being constant pressure source for the test power supply that outside is provided, then potentiometer Rp can be used in parallel
Mode, partial pressure is carried out to heating wire and adjusts the actual power of heating wire.Increase the contact area of heating wire 8, pass through simultaneously
Potentiometer Rp can be control effectively, be easy to the caloric value of regulation heating silk 8 so as to the electrothermal calefactive rate to heating wire 8
The test of user is used.
One experiment can be carried out before the use by the setting of heating wire, so as to the good of effective verifying parts
It is bad.Test port a1 is for connection to external test power supply.
The detection of electrical leakage unit 14 for detecting terminals drain conditions and indicating is also associated with shell 3.Pass through electric leakage
Detection unit 14 is detected to shell 3, because the binding post of thermal protector there may exist the situation of electric leakage, therefore is set
Detection of electrical leakage unit 14 can effectively prevent contact, improve security performance.
Electro-Discolor Coating in smart coat 11 can play the function of auxiliary display to detection of electrical leakage unit 14, when outer
In the case of there is electric leakage on shell 3, the change of color will occur due to the change of voltage for Electro-Discolor Coating.It is used to refer to
Drain conditions, improve the vigilance and security performance of user.
The first circuit implementation as shown in figure 3, detection of electrical leakage unit 14 include being connected to resistance R on shell 3 and
The neon lamp Ne of resistance R one end is series at, the other end of the neon lamp Ne is to be grounded.When thering is electric leakage to occur, neon lamp Ne
Will be breakdown and luminous, so as to carry out electric leakage instruction.
Second of circuit implementation is as shown in figure 4, detection of electrical leakage unit 14 includes capacity cell C, resistance R, LED；
The positive pole connected with outer casing 3 of the electric capacity, negative pole ground connection；One end of the resistance R connects the positive pole of electric capacity, other end connection LED
The anode of lamp；The minus earth of the LED.
By above-mentioned setting, the storage of electricity can be carried out by electric capacity, while when electric leakage occurs, can cause
LED luminous warning.
Can further it be optimized as the concrete scheme class of the present invention, from said structure, common Thermal protection
Device be with self-reparability, once but sometimes load temperature is down in certain limit, protector can automatic reclosing,
And the failure loaded is not resolved at all, application risk is virtually increased, therefore improves above-mentioned technical proposal, it is described dynamic
Tongue tube Kr, the tongue tube Kr, which are in series with, on main line where contact 6 is arranged on shell provided with magnetic part B, the magnetic part B
Tongue tube Kr is right against on body and the keying in a space to control tongue tube Kr is isolated in.Magnetic part B is provided with air bag
12, the air bag 12 is to control the spacing between magnetic part B and tongue tube Kr.Magnetic part B be magnet or magnetic bead, volume compared with
It is small, it may be mounted in shell 3.
By above-mentioned setting, tongue tube Kr as Magnetic Induction switch element, magnetic part B close to when can make out
Close and close, so that the effect for connecting circuit is reached, while by controlling magnetic part B tongue tube Kr switch can be caused to break
Open, so as to effectively cut-out circuit main line, play a part of a similar master switch, needed when some are used into
Row carries out short circuit manually, can directly control magnetic part B to be controlled the open circuit of circuit, by magnetic part B controls due to being nothing
Contact, therefore relatively safety, be not in the danger of electric shock, improve security performance.Because the magnetic part B magnetic line of force is point
Cloth is uneven, bigger with close field strength, away from the non-linear decline of field strength after a determining deviation, therefore can control this and tongue tube
Kr spacing can effectively play control action, and not influence other devices again.
For above-mentioned smart coat 11, Electro-Discolor Coating uses multi-layer compound structure, and multi-layer compound structure is from top to bottom
Be followed successively by environmental encapsulation layer, electrochromic activity layer, dielectric substrate, electrode layer and substrate layer, electrode layer and dielectric substrate it
Between electrochromic activity layer and environmental encapsulation layer between a pair of auxiliary electrodes are installed,
Wherein, substrate layer and environmental encapsulation layer are glass, quartz, polyimides, polyester, polyethylene, polypropylene, poly- carbonic acid
Ester, polyurethane or organic siliconresin, electrode layer and auxiliary electrode be gold, aluminium, silver, calcium or indium tin oxide ITO, dielectric substrate
Conductive materials are lithium perchlorate, ionic liquid, trifluoromethyl sulfonic acid lithium or sodium chloride, and electrochromic activity layer is polyaniline, gathered
One or both of thiophene or polypyrrole are combined.
By above-mentioned setting, electrochromism and reflectivity, the emissivity of electrochromic device are realized by voltage-regulation
Controllable variations, with DC powered, can obtain the assorted Electro-Discolor Coating such as transparent, golden yellow, light green, dark green, blackish green, and have
Standby different reflectivity and emissivity.
Photochromic coating, Electro-Discolor Coating, able thermochromic, the selection of piezochromism coating a variety of can be partitioned into
Bar shaped is set.Photochromic coating, Electro-Discolor Coating, able thermochromic, piezochromism coating can exist simultaneously, set
Various information can be effectively indicated after layer bar shaped arrangement.
Illustrate：Photochromic coating, component is constituted：55-70 parts of polyurethane resin, 2-5 parts of coupling agent, curing agent 8-
10-22 parts of 15 parts, 8-15 parts of tungstic acid, 5-12 parts of titanium oxide, 3-6 parts of alumina silicate and solvent.
Electro-Discolor Coating, be followed successively by from top to bottom using multi-layer compound structure environmental encapsulation layer, electrochromic activity layer,
Dielectric substrate, electrode layer and substrate layer, between electrode layer and dielectric substrate and electrochromic activity layer is with environmental encapsulation layer
Between a pair of auxiliary electrodes are installed,
Wherein, substrate layer and environmental encapsulation layer are glass, quartz, polyimides, polyester, polyethylene, polypropylene, poly- carbonic acid
Ester, polyurethane or organic siliconresin, electrode layer and auxiliary electrode be gold, aluminium, silver, calcium or indium tin oxide ITO, dielectric substrate
Conductive materials are lithium perchlorate, ionic liquid, trifluoromethyl sulfonic acid lithium or sodium chloride, and electrochromic activity layer is polyaniline, gathered
One or both of thiophene or polypyrrole are combined.
Able thermochromic, i.e. thermo-color mainly include phase-change coating and discoloration coating, phase-change coating be roughly divided into
Under it is several.A kind of is, by making temperature indicator from the crystalline material that can be melted under set point of temperature, to utilize coating before and after melting
Color changes to determine body surface temperature.Cucumber is creamy white when being solid state at room temperature, temperature rise
When reaching fusing point, the material melts become water white transparency state, such as stearate is melt into colourless transparent liquid, if handle
They are coated onto on dark object, be white less than 100 DEG C, object original color can be presented during higher than 100 DEG C.Another is to inhale
Receipts type, is mixed from the heat-sensitive materials with definite melting point with colored pigment, when reaching melting temperature, because colored pigment is inhaled
Attached, system color changes, and reaches thermometric purpose.For example, 15 parts of dimethylamino benzene-azo-benzene, 4.5 parts of titanium dioxide, diformazan
2.5 parts of base cellulose, water, in being melted at 114 DEG C, is changed into orange from yellow.Also some melt substances, such as aliphatic higher alcohol
In a certain temperature solidification melting phenomenon occurs for class, fatty acid, amino acid, ester, ether etc., and the electronics of control developer composition receives
Reaction, makes its reversible color；For example when higher aliphatic in peacock green lactone and 4-Hydroxycoumarin is mixed and made into reversible temperature indicating
During coating, its colour killing that develops the color is to solidify melting with product and produce, and colour-changing agent peacock green lactone supplies 4-hydroxyl during low temperature
Cumarin electronics and develop the color, and melted in high temperature, peacock green lactone retains electronics into very weak color.Its color temperature
Degree is the temperature near the fusing point of meltbility compound in constituent, and meltbility material is to play colour developing and colour killing and deposit
, can be many as the material of meltbility compound, mainly organic compound, wherein aliphatic higher alcohols are more preferable.It is this kind of
It is that, with the organic compound for discharging electro and colour rendering, another component is that the electronics of one of thermo-color component, which gives component,
Electronics receives component, and most of is to carry hydroxy compounds and its derivative and phenolic hydroxyl-compounds or derivative, and effect is to inhale
Receive release electronics.This two component is that oxidation-reduction potential is approached, during using temperature change, and both oxidation-reduction potentials are relative to be become
Change degree is different so that the direction of redox reaction can change and change with temperature.
The color change that the thermochromism of significant change occurs for color when discoloration coating mainly uses temperature change is come
Temperature is indicated, the discoloration of thermochromism plays a decisive role, and inorganic thermochromism is mainly used in that discoloration coating is made.
This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art
Member can make the modification without creative contribution to the present embodiment as needed after this specification is read, but as long as at this
All protected in the right of invention by Patent Law.
Claims (10)
1. a kind of power-off restoration thermal protector, including insulated enclosure paper (1), the insulated enclosure paper (1) are half frame-type structure,
Insulated enclosure paper (1) bottom is provided with bottom plate (2), also includes shell (3), fixes iron nail (4), bimetal leaf (5), moves
Contact (6), stationary contact (7) and heating wire (8), the outer surface that the shell (3) is arranged on the bottom plate (2) form a receiving
Space；The bimetal leaf (5) is located in the receiving space, and one end is fixed in the shell (3) by fixed iron nail (4)
Upper top surface, other end bottom is fixedly connected with movable contact (6), and the position corresponding with the movable contact (6) sets stationary contact
(7), it is characterised in that：The PTC devices (9) being parallel on movable contact (6) and stationary contact (7), institute are provided with the shell (3)
State PTC devices (9) fixed by steel card (10), the heating wire (8) is arranged on the upper surface of the bottom plate (2), and leaves survey
Try port (a1), wherein, test port (a1) is carried out to connect external power supply by external power supply to heating wire (8)
Power supply；The shell (3) is provided with smart coat (11), and the smart coat (11) is photochromic coating, electrochromism painting
One or more in layer, able thermochromic.
2. power-off restoration thermal protector according to claim 1, it is characterised in that：The heating wire (8) is tubulose or piece
Shape, the heating wire (8) is also in series or in parallel with potentiometer (Rp).
3. power-off restoration thermal protector according to claim 1, it is characterised in that：It is also associated with using on the shell (3)
With the detection of electrical leakage unit (14) for detecting terminals drain conditions and indicating.
4. power-off restoration thermal protector according to claim 3, it is characterised in that：The detection of electrical leakage unit (14) includes
The resistance (R) that is connected on shell (3) and the neon lamp (Ne) for being series at resistance (R) one end, the other end of the neon lamp (Ne) are used
To be grounded.
5. power-off restoration thermal protector according to claim 3, it is characterised in that：The detection of electrical leakage unit (14) includes
Capacity cell (C), resistance (R), LED；
The positive pole connected with outer casing (3) of the electric capacity, negative pole ground connection；
One end of the resistance (R) connects the positive pole of electric capacity, and the other end connects the anode of LED；
The minus earth of the LED.
6. according to any described power-off restoration thermal protector of claim 1 to 5, it is characterised in that：Where the movable contact (6)
Main line on be in series with tongue tube (Kr), the tongue tube (Kr) is provided with magnetic part (B), and the magnetic part (B) is arranged on shell
Tongue tube (Kr) is right against on body and the keying in a space to control tongue tube (Kr) is isolated in.
7. power-off restoration thermal protector according to claim 6, it is characterised in that：The magnetic part (B) is provided with air bag
(12), the air bag (12) is to control the spacing between magnetic part (B) and tongue tube (Kr).
8. power-off restoration thermal protector according to claim 1, it is characterised in that：The movable contact (6) is provided with grid
The striped (13) of shape and fitting is fixed on bimetal leaf (5).
9. power-off restoration thermal protector according to claim 1, it is characterised in that：The Electro-Discolor Coating uses multilayer
Composite construction, multi-layer compound structure is followed successively by environmental encapsulation layer, electrochromic activity layer, dielectric substrate, electrode layer from top to bottom
And substrate layer, a pair of auxiliary electricity are installed between electrode layer and dielectric substrate between electrochromic activity layer and environmental encapsulation layer
Pole,
Wherein, substrate layer and environmental encapsulation layer for glass, quartz, polyimides, polyester, polyethylene, polypropylene, makrolon,
Polyurethane or organic siliconresin, electrode layer and auxiliary electrode are gold, aluminium, silver, calcium or indium tin oxide ITO, and dielectric substrate is led
Isoelectric substance is lithium perchlorate, ionic liquid, trifluoromethyl sulfonic acid lithium or sodium chloride, and electrochromic activity layer is polyaniline, poly- thiophene
One or both of fen or polypyrrole are combined.
10. power-off restoration thermal protector according to claim 1, it is characterised in that：The photochromic coating, electroluminescent change
Color coating, a variety of intervals of able thermochromic selection are in strip setting.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610055995.0A CN105529216B (en) | 2016-01-28 | 2016-01-28 | Power-off restoration thermal protector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610055995.0A CN105529216B (en) | 2016-01-28 | 2016-01-28 | Power-off restoration thermal protector |
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| CN105529216A CN105529216A (en) | 2016-04-27 |
| CN105529216B true CN105529216B (en) | 2017-09-12 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846354A (en) * | 2016-05-31 | 2016-08-10 | 国网河南省电力公司南阳供电公司 | Overhaul equipment for preventing device mistakenly entering charged interval in power engineering operation |
| CN107527766A (en) * | 2017-08-22 | 2017-12-29 | 江苏怡通控制系统有限公司 | Self-hold thermal protector |
| CN107633979A (en) * | 2017-10-13 | 2018-01-26 | 江苏常恒集团控制器件制品有限公司 | One kind power-off automatic reset overload protector |
| CN108253006A (en) * | 2017-12-14 | 2018-07-06 | 中国航空工业集团公司成都飞机设计研究所 | A kind of washer that discoloration coating is caused based on power |
| TWI785260B (en) * | 2019-07-26 | 2022-12-01 | 富致科技股份有限公司 | overcurrent protection device |
| CN110611976A (en) * | 2019-09-27 | 2019-12-24 | 浙江孚硕电通股份有限公司 | LED power module |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000156141A (en) * | 1998-11-17 | 2000-06-06 | Texas Instr Japan Ltd | Motor protector |
| CN102176102B (en) * | 2010-12-27 | 2013-06-26 | 航天材料及工艺研究所 | Variable emissivity and variable reflectivity electrochromic intelligent thermal control coating and preparation method |
| CN202178473U (en) * | 2011-08-05 | 2012-03-28 | 衡阳风顺车桥有限公司 | Energy-saving and anti-electric-linkage socket |
| KR20160029082A (en) * | 2013-07-02 | 2016-03-14 | 타이코 일렉트로닉스 저팬 지.케이. | Protective device |
| CN203760377U (en) * | 2014-02-19 | 2014-08-06 | 青岛中阳消防科技有限公司 | Temperature-sensitive switch with disconnection detection function and temperature-sensitive detector of temperature-sensitive switch |
| CN204242949U (en) * | 2014-12-10 | 2015-04-01 | 常州市艾诺电子科技有限公司 | A kind of thermal protector |
| CN204230156U (en) * | 2014-12-10 | 2015-03-25 | 常州市艾诺电子科技有限公司 | A kind of sealing thermal protector |
| CN204516710U (en) * | 2015-04-21 | 2015-07-29 | 姚家米 | Overcurrent, overload, overheat protector |
| CN205542592U (en) * | 2016-01-28 | 2016-08-31 | 苏州工业园区凯恩电子科技有限公司 | Hot protector of power -off reset |
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