CN205159257U - Current temperature overload protector - Google Patents
Current temperature overload protector Download PDFInfo
- Publication number
- CN205159257U CN205159257U CN201520843513.9U CN201520843513U CN205159257U CN 205159257 U CN205159257 U CN 205159257U CN 201520843513 U CN201520843513 U CN 201520843513U CN 205159257 U CN205159257 U CN 205159257U
- Authority
- CN
- China
- Prior art keywords
- movable contact
- position block
- current temperature
- contact
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a current temperature overload protector. Current temperature overload protector includes shell, static contact, lower stopper, movable contact spring, goes up the stopper, the shell is the box -like plastic housing of one end open -ended cuboid, the static contact lower stopper the movable contact spring upward the stopper is folded in proper order and is located shell cavity, the stopper will down the static contact with the movable contact spring with one end separately, the static contact other end is equipped with the stationary contact, the movable contact spring other end is equipped with the movable contact, the shell is just right movable contact department is equipped with a round hole, round hole department is equipped with button, spring and stopper that the button below set gradually. 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, static contact, lower position block, movable contact spring, upper limit position block, described shell is the rectangular box plastic housing of one end open, described static contact, described lower position block, described movable contact spring, described upper limit position block is stacked at described shell inner cavity successively, described static contact and described movable contact spring one end separate by described lower position block, the described static contact other end is provided with fixed contact, the described movable contact spring other end is provided with moving contact, described shell is just provided with a circular hole to described moving contact place, described circular hole place is provided with button, the spring set gradually below button and guide vane end stop.
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.
In a kind of preferred embodiment of the current temperature overload protective device provided at the utility model, the relative position of wire described in two, described static contact, described lower position block, described movable contact spring and described upper limit position block and described shell is fixed in thermosetting resin sealing in described shell aperture place simultaneously.
In a kind of preferred embodiment of the current temperature overload protective device provided at the utility model, described upper limit position block, described lower position block, described guide vane end stop appearance are coated with insulating barrier.
In a kind of preferred embodiment of the current temperature overload protective device provided at the utility model, described static contact is metal copper sheet, and described movable contact spring is the sheet metal that various metals is composited, and described fixed contact, described moving contact surface are all silver-plated.
Compared with prior art, the beneficial effect of described current temperature overload protective device that the utility model provides is:
One, described static contact is copper sheet, the composite material that described movable contact spring adopts the metal of multiple suitable performance to form is heated and is easily out of shape, make described moving contact and described fixed contact separately, open circuit, electrical equipment can be avoided to burn out, described guide vane end stop 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, described fixed contact, described moving contact surface are all silver-plated, conduction, good heat conductivity.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, static contact 12, lower position block 13, movable contact spring 14, upper limit position block 15, two wire 16.
Described shell 11 is the rectangular box plastic housing of one end open.
Described static contact 12, described lower position block 13, described movable contact spring 14, described upper limit position block 15 are stacked at described shell 11 inner chamber successively, described static contact 12 and described movable contact spring 14 one end separate by described lower position block 13, described static contact 12 other end is provided with fixed contact 121, described movable contact spring 14 other end is provided with moving contact 141, described shell 11 is just provided with a circular hole 111 to described moving contact 141 place, described circular hole 111 place is provided with button 112, sets gradually spring 113 and guide vane end stop 114 below described button 112.Described upper limit position block 15, described lower position block 13, described guide vane end stop 114 appearance are coated with insulating barrier.Described static contact 12 is metal copper sheet, the sheet metal that described movable contact spring 14 is composited for various metals, and described fixed contact 121, described moving contact 141 surface are all silver-plated.
Wire 16 described in two connects described static contact 12 and described movable contact spring 14 one end respectively.
Described shell 11 opening part thermosetting resin 110 seals, and fixes the relative position of wire 16 described in two, described static contact 12, described lower position block 13, described movable contact spring 14 and described upper limit position block 15 and described shell 11 simultaneously.Produce chemical change, hardened forming gradually after thermosetting resin 110 first time 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.
During concrete enforcement, described current temperature overload protective device 1 and load in series, when load generation current overload, stall, when electric current exceedes the escape value set by protector, flow through larger overload current with described movable contact spring 14 and generate heat, expanded by heating and produce internal stress its contact is disconnected, make load protected, or when load produces high temperature, heat reaches described movable contact spring 14 and its contact is disconnected, when the electric current of load, when temperature is got back to normal, pressing described button 112 helps described movable contact spring 14 to reply, described moving contact 141 again contacts with described fixed contact 121 and connects circuit.
Compared with prior art, the beneficial effect of described current temperature overload protective device 1 that the utility model provides is:
One, described static contact 12 is copper sheet, the composite material that described movable contact spring 14 adopts the metal of multiple suitable performance to form is heated and is easily out of shape, make described moving contact 141 and described fixed contact 121 separately, open circuit, electrical equipment can be avoided to burn out, described guide vane end stop 114 can prevent described movable contact spring 14 to be out of shape Sheng, by pressing described button 112, described movable contact spring 14 is replied simultaneously, described moving contact 141 again contacts with described fixed contact 121 and connects circuit, simple to operate, cost is low, restorability is strong, the life-span is long, improves 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, described fixed contact 121, described moving contact 141 surface are all silver-plated, conduction, good heat conductivity.Produce chemical change, hardened forming gradually after the first time heating of described thermosetting resin 110, 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 (5)
1. a current temperature overload protective device, it is characterized in that, comprise shell, static contact, lower position block, movable contact spring, upper limit position block, described shell is the rectangular box plastic housing of one end open, described static contact, described lower position block, described movable contact spring, described upper limit position block is stacked at described shell inner cavity successively, described static contact and described movable contact spring one end separate by described lower position block, the described static contact other end is provided with fixed contact, the described movable contact spring other end is provided with moving contact, described shell is just provided with a circular hole to described moving contact place, described circular hole place is provided with button, the spring set gradually below button and guide vane end stop.
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.
3. current temperature overload protective device according to claim 2; it is characterized in that, the relative position of wire described in two, described static contact, described lower position block, described movable contact spring and described upper limit position block and described shell is fixed in thermosetting resin sealing in described shell aperture place simultaneously.
4. current temperature overload protective device according to claim 3, is characterized in that, described upper limit position block, described lower position block, described guide vane end stop appearance are coated with insulating barrier.
5. current temperature overload protective device according to claim 4, is characterized in that, described static contact is metal copper sheet, and described movable contact spring is the sheet metal that various metals is composited, and described fixed contact, described moving contact surface are all silver-plated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520843513.9U CN205159257U (en) | 2015-10-27 | 2015-10-27 | Current temperature overload protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520843513.9U CN205159257U (en) | 2015-10-27 | 2015-10-27 | Current temperature overload protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205159257U true CN205159257U (en) | 2016-04-13 |
Family
ID=55694921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520843513.9U Expired - Fee Related CN205159257U (en) | 2015-10-27 | 2015-10-27 | Current temperature overload protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205159257U (en) |
-
2015
- 2015-10-27 CN CN201520843513.9U patent/CN205159257U/en not_active Expired - Fee Related
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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 |