CN201611631U - Current temperature protector - Google Patents
Current temperature protector Download PDFInfo
- Publication number
- CN201611631U CN201611631U CN2009201970264U CN200920197026U CN201611631U CN 201611631 U CN201611631 U CN 201611631U CN 2009201970264 U CN2009201970264 U CN 2009201970264U CN 200920197026 U CN200920197026 U CN 200920197026U CN 201611631 U CN201611631 U CN 201611631U
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- CN
- China
- Prior art keywords
- base plate
- bimetal leaf
- shell
- current temperature
- temperature protector
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- Expired - Fee Related
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Abstract
The utility model relates to a current temperature protector which is mainly used for the field of household appliances. The current temperature protector comprises a shell, a double-metal sheet, a movable contact, an iron nail, insulating paper, a fixed contact and a bottom plate, wherein the free end of the double-metal sheet is provided with the movable contact, and the other end thereof is fixed at the inner side of the shell; the heating bottom plate is welded with the fixed contact corresponding to the movable contact; the insulating paper is provided with an opening which is convenient for the passing of the movable contact so as to be contacted with the fixed contact; and simultaneously, the heat on the heating bottom plate is transmitted to the double-metal sheet at the upper part. The current temperature protector is mainly and technically characterized in that the bottom plate is a one-piece flat plate made of heating materials, and provided with a hollow S-shaped or Z-shaped current path. The current temperature protector adopts the flat type heating bottom plate, simplifies the production technology compared with the silk type heating bodies, has more compact structure and smaller volume, and simultaneously improves the sensitivity of current protection.
Description
Technical field
The utility model relates to a kind of current temperature protector, is mainly used in household appliance technical field.
Background technology
Common thermal protector such as Fig. 2, comprise shell 1 ', bimetal leaf 2 ', moving contact 3 ', iron nail 4 ', insulating paper 5 ', fixed contact 6 ' and the heating base plate 7 '.When external temperature rose to the thermal protector design temperature, the butterfly shaped dual metal sheet upset made the sound contact separation, cut off circuit and reached the temperature protection effect.The effect of thermal protector mainly is a temperature protection, though can reach certain current protection effect by changing the bimetal leaf resistance, its sensitivity is lower, and changes comparatively difficulty of parameter in the protector factory production process, has limited its range of application.
Another kind of current protector such as Fig. 3 are that its heating element of 2007.20125503.7 adopts thread heater as the patent No., reach the design parameter requirement, and thread heater must possess certain length and sectional area.Therefore for satisfying the design parameter requirement, heater overall dimension is big (common is helical form).And heating wire is welded on two base plates that disconnect, and has increased complex process degree and production cost.As Fig. 3, comprise shell 1 ", bimetal leaf 2 ", moving contact 3 ", pad 4 ", insulating paper 5 ", heating wire 6 ", fixed contact 7 " and base plate 8 ".
Summary of the invention
The utility model provides a kind of current temperature protector of having simplified production technology, having improved the sensitivity of protector current protection.
The utility model can be realized by following technical solution: a kind of current temperature protector, comprise shell, bimetal leaf, moving contact, iron nail, insulating paper, fixed contact and base plate, described bimetal leaf free end is provided with moving contact, the other end is fixing inside the shell, be welded with and the corresponding fixed contact of moving contact on the heating base plate, insulating paper is provided with opening, being convenient to moving contact passes with fixed contact and contacts, the heat that will generate heat simultaneously on the base plate conducts on the bimetal leaf of its top by opening, its major technique feature is that base plate is the integral type flat board that exothermic material is made, and base plate is provided with the S type or the Z type current path of hollow out;
As preferably, the centre position of described S type or Z type current path is elongated formula;
One end of described shell is connected with first outer lead, and inboard welding drives the bimetal leaf of contact; Heating base plate one end is connected with second outer lead, and the other end is welded with and the corresponding fixed contact of moving contact; Described shell, iron nail, bimetal leaf, moving contact, fixed contact, the heating base plate of comprising separates the formation series circuit by insulating paper.
Described bimetal leaf one end is fixed on the shell inside top, and the other end is hanging type and is provided with moving contact that bimetal leaf is near the shell inside top.
The utility model adopts flat heating base plate, compares thread heater and has simplified production technology, makes protector structure more compact, and volume is littler.Improved the sensitivity of protector current protection simultaneously.By adjusting heating base plate punching out shape and inside dimension, can satisfy different current protection designing requirements.
Description of drawings:
Fig. 1 is a current temperature protector structural representation of the present utility model
Fig. 2 is common temperature protector structural representation
Fig. 3 is the structural representation of common current protector
Fig. 4 is a S type heating base plate schematic diagram of the present utility model
Fig. 5 protects the temperature correction schematic diagram of device for current temperature of the present utility model
Fig. 6 is the shell flank of the present utility model riveted joint schematic diagram that bends
Embodiment
As shown in Figure 1, this current temperature protector comprises shell 1, bimetal leaf 2, moving contact 3, iron nail 4, insulating paper 5, fixed contact 6 and heating base plate 7.The heating base plate is made by the heating plate material, and according to the protector parameter request, is generally the cold-punching mould time processing and forms.Become S type or Z type for increasing the punching out of resistance heating amount, and mid portion is designed to elongate, is convenient to caloric value is concentrated on mid portion, as Fig. 4.The heating base plate is positioned at the bimetal leaf below, makes the current protection effect sensitive more.As Fig. 4 shape, adjust heating baseboard material thickness and (be generally 0.2 ~ 0.5mm) and width and the spacing L of punching out limit S, can realize different resistance heating values, to satisfy different protector current design parameter requests.Shell is made by electric conducting material, and an end is connected with outer lead, and inside top is welded dish-like bimetal leaf.Bimetal leaf dangles to hold and is provided with moving contact, and the heating base plate is provided with the fixed contact corresponding with moving contact.Between shell and heating base plate insulating paper is housed.Is provided with opening in the middle of the insulating paper, be convenient to moving contact and pass with fixed contact and contact, and the heat of the base plate that will generate heat conducts the bimetal leaf as for the top.By changing bimetal leaf radian size, can set different upset temperature, promptly different protector operating temperature and reset temperature.One end of heating base plate is connected with another outer lead.Bend by the shell flank shell, insulating paper, the riveted joint of heating base plate are become one.Shell, iron nail, bimetal leaf, moving contact, fixed contact, heating base plate separate by insulating paper can constitute series circuit.By changing heating base plate thickness and shape, control bottom plate resistance caloric value can realize different current protection values.As Fig. 5, by adjusting the upper and lower displacement of shell inside top M point, can adjust the operating temperature of protector in protector riveted joint assembling back at the operating temperature of protector riveted joint assembling back calibration protector, improved homogeneity of product and qualification rate.Bending by shell two flanks is connected as a single entity heating base plate, insulating paper and shell, as Fig. 6.Is provided with opening in the middle of the insulating paper, be convenient to moving contact and pass with fixed contact and contact, and the base plate heat that will generate heat conducts on the bimetal leaf.Make the effect of protector current protection sensitive more.
When the utility model is used for the temperature protection of electric equipment products, when electrical equipment adstante febre for some reason, when the protector external temperature rises to design temperature, the bimetal leaf upset, the sound contact disconnects, and cuts off appliances power source, has reached the purpose of protection electrical equipment.When the controlled electric appliance current anomaly, when surpassing the setting current value of this protector, electric current flows through the heating base plate, makes the protector self-temperature rise to set temperature value, the bimetal leaf upset, and two contacts separate, and circuitry cuts has reached the current protection effect of electrical equipment.After fault was got rid of, the protector self-temperature dropped to the recovery temperature value, the bimetal leaf upset that resets, and two contacts are connected, and electrical equipment recovers normally to move.
Claims (4)
1. current temperature protector; comprise shell (1); bimetal leaf (2); moving contact (3); iron nail (4); insulating paper (5); fixed contact (6) and base plate (7); described bimetal leaf free end is provided with moving contact; the other end is fixing inside the shell; be welded with and the corresponding fixed contact of moving contact on the heating base plate; insulating paper is provided with opening; being convenient to moving contact passes with fixed contact and contacts; the heat that will generate heat simultaneously on the base plate conducts on the bimetal leaf of its top by opening; it is characterized in that base plate is the integral type flat board that exothermic material is made, base plate is provided with the S type or the Z type current path of hollow out.
2. a kind of current temperature protector as claimed in claim 1, the centre position that it is characterized in that described S type or Z type current path are elongated formula.
3. a kind of current temperature protector as claimed in claim 1 is characterized in that an end of described shell is connected with first outer lead, and inboard welding drives the bimetal leaf of contact; Heating base plate one end is connected with second outer lead, and the other end is welded with and the corresponding fixed contact of moving contact; Described shell, iron nail, bimetal leaf, moving contact, fixed contact, the heating base plate of comprising separates the formation series circuit by insulating paper.
4. a kind of current temperature protector as claimed in claim 1 is characterized in that described bimetal leaf one end is fixed on the shell inside top, and the other end is hanging type and is provided with moving contact; Bimetal leaf is near the shell inside top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201970264U CN201611631U (en) | 2009-09-14 | 2009-09-14 | Current temperature protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201970264U CN201611631U (en) | 2009-09-14 | 2009-09-14 | Current temperature protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201611631U true CN201611631U (en) | 2010-10-20 |
Family
ID=42962266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201970264U Expired - Fee Related CN201611631U (en) | 2009-09-14 | 2009-09-14 | Current temperature protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201611631U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064414A (en) * | 2014-06-03 | 2014-09-24 | 东莞市凯恩电子科技有限公司 | Load protection device for over-temperature, overload and instantaneous kicking |
| CN104064413A (en) * | 2014-06-03 | 2014-09-24 | 东莞市凯恩电子科技有限公司 | Suddenly jump load over-temperature overload protection device |
| CN104465232A (en) * | 2015-01-09 | 2015-03-25 | 匡成效 | Adjustable overcurrent electricity protector |
-
2009
- 2009-09-14 CN CN2009201970264U patent/CN201611631U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064414A (en) * | 2014-06-03 | 2014-09-24 | 东莞市凯恩电子科技有限公司 | Load protection device for over-temperature, overload and instantaneous kicking |
| CN104064413A (en) * | 2014-06-03 | 2014-09-24 | 东莞市凯恩电子科技有限公司 | Suddenly jump load over-temperature overload protection device |
| CN104465232A (en) * | 2015-01-09 | 2015-03-25 | 匡成效 | Adjustable overcurrent electricity protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101020 Termination date: 20110914 |