CN204230156U - A kind of sealing thermal protector - Google Patents
A kind of sealing thermal protector Download PDFInfo
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- CN204230156U CN204230156U CN201420780042.7U CN201420780042U CN204230156U CN 204230156 U CN204230156 U CN 204230156U CN 201420780042 U CN201420780042 U CN 201420780042U CN 204230156 U CN204230156 U CN 204230156U
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- base plate
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- thermal protector
- conducting surface
- sealing thermal
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Abstract
The open a kind of sealing thermal protector of the utility model, comprise the insulated enclosure paper of half frame-type structure, the outer surface that shell is arranged on base plate forms a spatial accommodation, bimetal leaf is positioned at spatial accommodation, upper end face is in the enclosure fixed by fixing iron nail in one end, other end bottom is provided with moving contact, and the position corresponding with moving contact is fixed contact; Heating wire is arranged on the upper surface of base plate, and base plate is combined structure, and base plate is made up of two sections and the sealed insulation connecting plate be connected in the middle of two sections.The utility model is provided with by portion in the soleplate the plate that is tightly connected, and arrange sealing shroud at the two ends of sleeve pipe, effectively improve sealing property, fail safe is higher, increases the service life; The inner PTC thermistor adopted, by lower surface spary one deck silver slurry layer respectively thereon, to form on PTC conducting surface under conducting surface and PTC, alternative metals chip architecture, effectively reduces the structure space of thermal protector.
Description
Technical field
The utility model relates to a kind of electric prospection components and parts, particularly relates to a kind of sealing thermal protector.
Background technology
Thermal protector can be referred to as temperature detect switch (TDS), thermostat, heat portective switch or temperature switch, be produced by proprietary technology a kind of excess temperature, overcurrent protection device, its volume is little; contact capacity is large; escape action is quick, dependable performance, is miniature a, quick-action, heat-actuated device.In Thermal protection sciemtifec and technical sphere, it is a protection component be widely used.
Thermal protector is by the different alloy combination of two panels together; by generating heat after electric current; because two kinds of different alloy thermal coefficient of expansions are different; alloy certainly will bend to a direction; contact is left; power-off thereupon, rate of bending is directly proportional to the size of current passed through, and is played the effect of protection power consumption equipment by such mode.
Existing thermal protector; when electrical equipment normally works; bimetal leaf is in free state; contact is in closed/off-state; when temperature is increased to operating temperature value, bimetallic element is heated and produces internal stress and rapidly action, opened/closed contact; cut off/connect circuit, thus play heat protective effect.Be widely used in domestic electric appliance motor and electric equipment, as motor for soymilk machine, motor of dust collector, motor for washer, air conditioner fan motor, transformer, ballast, electric heating appliance etc.
Along with the exploitation progress of electric equipment; more and more higher requirement is proposed to thermal protector; good heat protective effect should be had; meet electrical machine insulation dipping lacquer processing technology again, fail safe is high, because the needs of above-mentioned thermal protector development; the design people; actively in addition research and innovation, to founding a kind of novel seal thermal protector, makes it have more practicality.
Utility model content
Main purpose of the present utility model is, overcomes the defect that existing thermal protector exists, and provides a kind of novel seal thermal protector, improves insulation property, thus is more suitable for practicality, and have the value in industry.
The purpose of this utility model and solve its technical problem and realize by the following technical solutions.According to the sealing thermal protector that the utility model proposes; comprise an insulated enclosure paper, described insulated enclosure paper is half frame-type structure, is provided with base plate bottom described insulated enclosure paper; also include shell, fixing iron nail, bimetal leaf, moving contact, fixed contact and heating wire
The outer surface that described shell is arranged on described base plate forms a spatial accommodation, described bimetal leaf is positioned at described spatial accommodation, one end is fixed on the upper end face in described shell by fixing iron nail, other end bottom is provided with moving contact, and the position corresponding with described moving contact is fixed contact;
Described heating wire is arranged on the upper surface of described base plate, described base plate is combined structure, described base plate is made up of two sections and the sealed insulation connecting plate be connected in the middle of two sections, wherein sealed insulation connecting plate adopts the insulating material preparations such as PPS, PBT, epoxy resin, by high temperature resistant, the corrosion resistance characteristic of its excellence, improve the sealing property of thermal protector entirety, prevent molten metal permeating corrosion;
Be respectively arranged with sealing shroud at the two ends of described insulated enclosure paper, sealing shroud Material selec-tion has the material of insulation property, as PET, rubber etc.; Duplicate protection, sealing effectiveness is more excellent.
Further; aforesaid sealing thermal protector; also include conducting surface under PTC thermistor, the upper conducting surface of PTC and PTC; described PTC thermistor is arranged on the heating wire of described base plate; the upper surface of described PTC thermistor is provided with conducting surface on PTC; the lower surface of described PTC thermistor is provided with conducting surface under PTC, segmentation in the middle of conducting surface under conducting surface and PTC on described PTC, respectively with two section conductings of described base plate.
Further, aforesaid sealing thermal protector, on described PTC, under conducting surface and PTC, conducting surface is silver slurry conducting surface; Namely at the upper surface of described PTC thermistor and lower surface spary one deck silver slurry layer respectively, to form on PTC conducting surface under conducting surface and PTC, alternative metals chip architecture, further reduces the structure space of thermal protector.
Further, aforesaid sealing thermal protector, the one end of the half frame-type structure that described insulated enclosure paper is formed is provided with two through holes, and described through hole is used for arranging described wire.
Further, aforesaid sealing thermal protector, described PTC thermistor fastens on described base plate by the annular steel having one end not closed in its outer setting, forms circuit loop.Steel card is laterally zygomorphic structure, and be protruding in the centre of side, play fixation better by projection, protruding opposite flank is unsealed bayonet socket, and bayonet socket curves inwardly, and has card and conducting effect.
Further, aforesaid sealing thermal protector, is provided with insulating paper at the upper surface of described base plate.Insulating paper wraps position base plate not being arranged heating wire and PTC thermistor, has insulation protection effect.
Further, aforesaid sealing thermal protector, described base plate is combined structure, and described heating wire is that " S " type vibrational power flow is on two sections of described Combined base plate.
By technique scheme, sealing thermal protector of the present utility model at least has following advantages:
Sealing thermal protector of the present utility model in the soleplate portion is provided with sealed insulation connecting plate, and arrange sealing shroud at the two ends of half frame-type insulated enclosure paper, effectively improve sealing property, fail safe is higher, increases the service life; The inner PTC thermistor adopted, by lower surface spary one deck silver slurry layer respectively thereon, to form on PTC conducting surface under conducting surface and PTC, alternative metals chip architecture, effectively reduces the structure space of thermal protector; At the two ends of outside insulated enclosure paper, sealing shroud is set respectively, plays good insulation, sealing effectiveness, ensure the security performance in product use procedure; By untight annular steel card by PTC thermistor card and being fixed on base plate, and ensure that electrical contact is good; And there is power-off hand-reset function, there is better safeguard protection performance, avoid the generation of contingency.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of specification, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present utility model.
Accompanying drawing explanation
Fig. 1 is the detonation configuration schematic diagram of the utility model sealing thermal protector;
Fig. 2 is the sealing thermal protector structure schematic diagram not arranging PTC thermistor;
Fig. 3 is the package assembly schematic diagram of the utility model sealing thermal protector;
Fig. 4 is the utility model sealing thermal protector right view;
Fig. 5 is the utility model sealing thermal protector circuit theory diagrams;
Implication is marked: 1. wire, 2. insulated enclosure paper, 3. shell, 4. base plate in figure, 5. fixing iron nail, 6. bimetal leaf, 7. moving contact, 8. fixed contact, 9. insulating paper, 10. heating wire, 11.PTC thermistor, 12. steel cards, the upper conducting surface of 13.PTC, conducting surface under 14.PTC, 15. sealing shrouds, 16. sealed insulation connecting plates, 17. loads, 18. power supplys, 19.AC.
Embodiment
For further setting forth the utility model for the technological means reaching predetermined utility model object and take and effect, below in conjunction with accompanying drawing and preferred embodiment, embodiment of the present utility model is described in detail as follows.
Sealing thermal protector structure schematic diagram of the present utility model as shown in figures 1-4; Fig. 5 is fundamental diagram, includes conducting surface 14 under wire 1, insulated enclosure paper 2, shell 3, base plate 4, fixing iron nail 5, bimetal leaf 6, moving contact 7, fixed contact 8, insulating paper 9, heating wire 10, PTC thermistor 11, steel card 12, the upper conducting surface 13 of PTC, PTC, sealing shroud 15, sealed insulation connecting plate 16, load 17, power supply 18 and AC19.
Base plate 4 is provided with bottom insulated enclosure paper 2 inner surface of half frame-type structure, base plate 4 is combined structure, namely be made up of two structures disconnected and the sealed insulation connecting plate 16 that is connected to two sections and form a base plate 4, wherein heating wire 10 is that " S " type vibrational power flow is on two sections of Combined base plate 4, the outer surface that shell 3 is arranged on base plate 4 forms a spatial accommodation, wherein bimetal leaf 6 is positioned at spatial accommodation inside, one end is fixed on the upper end face in shell 3 by fixing iron nail 5, other end bottom is provided with moving contact 7, the position corresponding with moving contact 7 is fixed contact 8, PTC thermistor 11 is arranged on the heating wire 10 of base plate 4, the upper surface of PTC thermistor 11 is provided with conducting surface 13 on PTC, the lower surface of PTC thermistor 11 is provided with conducting surface 14 under PTC, wherein on PTC, under conducting surface 13 and PTC, conducting surface 14 is silver slurry conducting surface, namely the silver formed by spary operation starches conductive layer, there is conductive effect good, the advantage that thickness is little, save space.PTC thermistor 11 is fixed on base plate 4 by the annular steel card 12 having one end not closed in its outer setting.Steel card 12 is laterally zygomorphic structure, and be protruding in the centre of side, play fixation better by projection, protruding opposite flank is unsealed bayonet socket, and bayonet socket curves inwardly, and has card and conducting effect.The position not arranging heating wire 10 and PTC thermistor 11 at the upper surface of base plate 4 is provided with insulating paper 9, plays insulating effect.Wherein one end of half frame-type insulated enclosure paper 2 is provided with two through holes, and through hole is used for arranging through two wires 1, is respectively arranged with sealing shroud 15 at the two ends of half frame-type insulated enclosure paper 2, wherein arranges the sealing shroud 15 of wire 1 side through wire 1.
Thermal protector operation principle is as follows:
Bimetal leaf 6 part and the PTC thermistor 11 of thermal protector form parallel circuits, then connect with load 17, and when load 17 normally runs, PTC thermistor 11 can not produce high temperature; The high temperature produced when load 17 is abnormal or big current can make thermal protector open circuit, now PTC thermistor 11 can produce high temperature and high value (high temperature of PTC thermistor 11 can make thermal protector be held in off state always), and load 17 is out of service; The moving contact 7 of bimetal leaf 6 closes with fixed contact 8; circuit is in conducting state; generate heat for some reason when making electrical appliance; when temperature rises to this product rated function temperature value; bimetal leaf 6 is heated and produces internal stress and rapidly action, pushes the moving contact 7 be arranged on bimetal leaf 6 open, cuts off the electricity supply; electrical equipment quits work, thus plays superheat protecting function.After power supply 18 is disconnected manually, PTC thermistor 11 starts cooling, and after certain hour cooling, thermal protector automatically resets, and again switch on power 18, load 17 operates.
Simultaneously; moving contact 7 and the fixed contact 8 of the bimetal leaf of sealing thermal protector of the present utility model also can be designed as often to be opened; when making electrical appliance reach uniform temperature; the moving contact 7 of bimetal leaf 6 and fixed contact 8 are with regard to conducting; the utility model can according to the needs of product function, are set to closed type or open type.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, 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 solutions of the utility model, according to any simple modification that technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (7)
1. a sealing thermal protector; comprise an insulated enclosure paper (2); described insulated enclosure paper (2) is half frame-type structure; described insulated enclosure paper (2) bottom is provided with base plate (4); also include shell (3), fixing iron nail (5), bimetal leaf (6), moving contact (7), fixed contact (8) and heating wire (10)
The outer surface that described shell (3) is arranged on described base plate (4) forms a spatial accommodation, described bimetal leaf (6) is positioned at described spatial accommodation, one end is fixed on the upper end face in described shell (3) by fixing iron nail (5), other end bottom is provided with moving contact (7), and the position corresponding with described moving contact (7) is fixed contact (8);
Described heating wire (10) is arranged on the upper surface of described base plate (4), it is characterized in that:
Described base plate (4) is combined structure, and described base plate (4) is made up of two sections and the sealed insulation connecting plate (16) be connected in the middle of two sections;
Sealing shroud (15) is respectively arranged with at the two ends of described insulated enclosure paper (2).
2. sealing thermal protector according to claim 1; it is characterized in that: also include conducting surface (14) under PTC thermistor (11), the upper conducting surface of PTC (13) and PTC; described PTC thermistor (11) is arranged on the heating wire (10) of described base plate (4); the upper surface of described PTC thermistor (11) is provided with conducting surface on PTC (13), and the lower surface of described PTC thermistor (11) is provided with conducting surface (14) under PTC.
3. sealing thermal protector according to claim 2; it is characterized in that: on described PTC, under conducting surface (13) and PTC, conducting surface (14) is silver slurry conducting surface; segmentation in the middle of conducting surface (14) under conducting surface (13) and PTC on described PTC, respectively with two section conductings of described base plate (4).
4. sealing thermal protector according to claim 1, is characterized in that: one end of described insulated enclosure paper (2) is provided with two through holes, and described through hole is used for arranging described wire (1).
5. the sealing thermal protector according to Claims 2 or 3, is characterized in that: described PTC thermistor (11) is fixed on described base plate (4) by the annular steel card (12) having one end not closed in its outer setting, forms circuit loop.
6. sealing thermal protector according to claim 5, is characterized in that: the upper surface of described base plate (4) is provided with insulating paper (9).
7. sealing thermal protector according to claim 5, is characterized in that: described base plate (4) is combined structure, and described heating wire (10) is that " S " type vibrational power flow is on two sections of described Combined base plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420780042.7U CN204230156U (en) | 2014-12-10 | 2014-12-10 | A kind of sealing thermal protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420780042.7U CN204230156U (en) | 2014-12-10 | 2014-12-10 | A kind of sealing thermal protector |
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| Publication Number | Publication Date |
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| CN204230156U true CN204230156U (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420780042.7U Active CN204230156U (en) | 2014-12-10 | 2014-12-10 | A kind of sealing thermal protector |
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| CN (1) | CN204230156U (en) |
Cited By (2)
| 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 |
| CN106057596A (en) * | 2016-06-27 | 2016-10-26 | 攸县联诚电子有限公司 | Power failure reset protector integrating double temperature and current protections |
-
2014
- 2014-12-10 CN CN201420780042.7U patent/CN204230156U/en active Active
Cited By (2)
| 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 |
| CN106057596A (en) * | 2016-06-27 | 2016-10-26 | 攸县联诚电子有限公司 | Power failure reset protector integrating double temperature and current protections |
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