CN205159245U - Current temperature overload protector - Google Patents
Current temperature overload protector Download PDFInfo
- Publication number
- CN205159245U CN205159245U CN201520843546.3U CN201520843546U CN205159245U CN 205159245 U CN205159245 U CN 205159245U CN 201520843546 U CN201520843546 U CN 201520843546U CN 205159245 U CN205159245 U CN 205159245U
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- CN
- China
- Prior art keywords
- movable contact
- spring
- current temperature
- shell
- contact spring
- Prior art date
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Abstract
The utility model relates to a current temperature overload protector. Current temperature overload protector includes shell, dustcoat, static contact, lower stopper, movable contact spring, heat -sensitive sheet, goes up the stopper, it is box -like that the shell is one end open -ended cuboid, the dustcoat block in housing opening department, the activity alternates on the shell has the button, lower stopper the static contact the heat -sensitive sheet the movable contact spring last stopper the button up sets gradually under vertical direction is followed, static contact one end is fixed to be located lower stopper, movable contact spring one end is located the shell, the static contact other end is equipped with the stationary contact, the movable contact spring other end is equipped with the movable contact, the movable contact spring pass through the spring with it connects to go up the stopper, go up the stopper pass through the spring with press the key -type connection. The utility model provides a current temperature overload protector restorability is strong, the security performance is high, has the excess temperature and overflows the duplicate protection function.
Description
Technical field
The utility model relates to a kind of non-electricity protector, particularly relates to one energy automatic cut-off power when the power consumption equipment such as three phase electric machine, compressor of air conditioner is at overcurrent overheat, the current temperature overload protective device preventing it from burning.
Background technology
Traditional circuit protection device mainly adopts metal fuse or electronic protection circuit to carry out the safeguard protection of realizing circuit, or just single overheat protector or overcurrent protection, and these method restorabilitys are poor, complex circuit designs, and cost is also higher.
There is following shortcoming in existing current temperature overload protective device structure; namely after bimetal leaf bounces reversal protection under current temperature overload condition; because bimetal leaf only relies on its head and pressing plate and insulator pressing to fix; bimetal leaf is caused easily to cause fatigue rupture; pressure between moving contact and fixed contact reduces, and have impact on functional reliability and the useful life of protector.
Utility model content
For solving the technical problem that above-mentioned protective device restorability is poor, functional reliability is poor, useful life is short, the utility model provides that restorability is strong, security performance is high, has the current temperature overload protective device of overtemperature and overcurrent double protection functions.
A kind of current temperature overload protective device, comprise shell, outer cover, static contact, lower position block, movable contact spring, heat-sensitive sheet, upper limit position block, described shell is the sheet material of the rectangular box plating nickel on surface kirsite of one end open, described outer cover is sticked in described shell aperture place, on described shell, activity is interspersed with button, described lower position block, described static contact, described heat-sensitive sheet, described movable contact spring, described upper limit position block, described button sets gradually from the bottom up at vertical direction, described static contact one end is fixed at described lower position block, described shell is located in described movable contact spring one end, the described static contact other end is provided with fixed contact, the described movable contact spring other end is provided with moving contact, described movable contact spring is connected with described upper limit position block by spring, described upper limit position block is connected with described button by spring.
In a kind of preferred embodiment of the current temperature overload protective device provided at the utility model, also comprise two wires, wire described in two connects described static contact and described movable contact spring one end respectively and stretches out in described outer cover the same side.
In a kind of preferred embodiment of the current temperature overload protective device provided at the utility model, described shell is engaged place with described outer cover and is sealed by thermosetting resin.
In a kind of preferred embodiment of the current temperature overload protective device provided at the utility model, be provided with striking sheet on the downside of described movable contact spring, when described heat-sensitive sheet arrives set temperature, described striking sheet is clashed in reversion.
Compared with prior art, the beneficial effect of described current temperature overload protective device that the utility model provides is:
One, described heat-sensitive sheet reversing when reaching design temperature, resetting lower than during design temperature, striking sheet described in striking while reversion, described spring plays synergy simultaneously, the described moving contact of described movable contact spring is jointly impelled to depart from described fixed contact, described upper limit position block can prevent described movable contact spring to be out of shape interference, by pressing described button, described movable contact spring is replied simultaneously, described moving contact contacts connection circuit again with described fixed contact, simple to operate, cost is low, restorability is strong, the life-span is long, improves the fail safe of product.
Two, the utility model structure is advanced, volume is little, applied range, has overtemperature and overcurrent double protection functions.
Three, produce chemical change, hardened forming gradually after the first time heating of described thermosetting resin, then be heated and also do not soften, can not dissolve, have excellent electrical insulation capability, its breakdown strength, high pressure resistant electric arc and electric spark performance are all more excellent.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the current temperature overload protective device internal structure schematic diagram that the utility model provides.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Referring to Fig. 1, is the internal structure schematic diagram of the current temperature overload protective device that the utility model provides.
Described current temperature overload protective device 1 comprises shell 11, outer cover 12, static contact 13, lower position block 14, movable contact spring 15, heat-sensitive sheet 16, upper limit position block 17 and two wires 18.
Described shell 11 is the sheet material of the rectangular box plating nickel on surface kirsite of one end open.Described outer cover 12 is sticked in described shell 11 opening part, and seals with thermosetting resin.On described shell 11, activity is interspersed with button 111, described lower position block 14, described static contact 13, described heat-sensitive sheet 16, described movable contact spring 15, described upper limit position block 17, described button 111 sets gradually from the bottom up at vertical direction, described static contact 13 one end is fixed at described lower position block 14, described shell 11 is located in described movable contact spring 15 one end, described static contact 13 other end is provided with fixed contact 131, described movable contact spring 15 other end is provided with moving contact 151, downside is provided with striking sheet 150, described heat-sensitive sheet 16 reverses when arriving set temperature and clashes into described striking sheet 150.Described movable contact spring 15 is connected with described upper limit position block 17 by spring 10 near described moving contact 151 one end, and described upper limit position block 17 is connected with described button 11 by spring 10.
Wire 18 described in two connects described static contact 13 and described movable contact spring 15 one end respectively and stretches out in described outer cover 12 the same side.
Compared with prior art, the beneficial effect of described current temperature overload protective device 1 that the utility model provides is:
One, described heat-sensitive sheet 16 reverses when reaching design temperature, reset lower than during design temperature, striking sheet 150 described in striking while reversion, described spring 10 also plays synergy, the described moving contact 151 of described movable contact spring 15 is made to depart from described fixed contact 131, described upper limit position block 17 and described spring 10 can prevent described movable contact spring 15 to be out of shape interference, by pressing described button 111, described movable contact spring 15 is replied simultaneously, described moving contact 151 again contacts with described fixed contact 131 and connects circuit, simple to operate, cost is low, restorability is strong, life-span is long, improve the fail safe of product.
Two, described current temperature overload protective device 1 structure that provides of the utility model is advanced, volume is little, applied range, has overtemperature and overcurrent double protection functions.
Three, produce chemical change, hardened forming gradually after thermosetting resin heating, then be heated and also do not soften, can not dissolve, have excellent electrical insulation capability, its breakdown strength, high pressure resistant electric arc and electric spark performance are all more excellent.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included within scope of patent protection of the present utility model.
Claims (4)
1. a current temperature overload protective device, it is characterized in that, comprise shell, outer cover, static contact, lower position block, movable contact spring, heat-sensitive sheet, upper limit position block, described shell is the sheet material of the rectangular box plating nickel on surface kirsite of one end open, described outer cover is sticked in described shell aperture place, on described shell, activity is interspersed with button, described lower position block, described static contact, described heat-sensitive sheet, described movable contact spring, described upper limit position block, described button sets gradually from the bottom up at vertical direction, described static contact one end is fixed at described lower position block, described shell is located in described movable contact spring one end, the described static contact other end is provided with fixed contact, the described movable contact spring other end is provided with moving contact, described movable contact spring is connected with described upper limit position block by spring, described upper limit position block is connected with described button by spring.
2. current temperature overload protective device according to claim 1, is characterized in that, also comprises two wires, and wire described in two connects described static contact and described movable contact spring one end respectively and stretches out in described outer cover the same side.
3. current temperature overload protective device according to claim 2, is characterized in that, described shell is engaged place with described outer cover and sealed by thermosetting resin.
4. current temperature overload protective device according to claim 3, is characterized in that, is provided with striking sheet on the downside of described movable contact spring, reverses and clash into described striking sheet when described heat-sensitive sheet arrives set temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520843546.3U CN205159245U (en) | 2015-10-27 | 2015-10-27 | Current temperature overload protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520843546.3U CN205159245U (en) | 2015-10-27 | 2015-10-27 | Current temperature overload protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205159245U true CN205159245U (en) | 2016-04-13 |
Family
ID=55694909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520843546.3U Expired - Fee Related CN205159245U (en) | 2015-10-27 | 2015-10-27 | Current temperature overload protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205159245U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112420460A (en) * | 2020-11-23 | 2021-02-26 | 泰兴市常宏通灵电器有限公司 | Overload temperature control protector |
-
2015
- 2015-10-27 CN CN201520843546.3U patent/CN205159245U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112420460A (en) * | 2020-11-23 | 2021-02-26 | 泰兴市常宏通灵电器有限公司 | Overload temperature control protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20161027 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |