CN87202571U - Reset temp. limiter - Google Patents
Reset temp. limiter Download PDFInfo
- Publication number
- CN87202571U CN87202571U CN 87202571 CN87202571U CN87202571U CN 87202571 U CN87202571 U CN 87202571U CN 87202571 CN87202571 CN 87202571 CN 87202571 U CN87202571 U CN 87202571U CN 87202571 U CN87202571 U CN 87202571U
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- China
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- model
- utility
- spring
- limiter
- temperature limiter
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- 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.)
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Abstract
The utility model discloses a reset temperature limiter, composed of a ceramic bracket, rivets, metal moving and fixed contact sheets, low melting point alloy solder and springs. The metal moving and fixed contact sheets are fixed by the rivets on the ceramic bracket, and one ends of the former two are welded together by the low melting point alloy solder. The temperature limiter is connected in series in the power supply circuit of electrical equipment (has to be arranged butting heating elements) to realize the temperature limiting protection on the electrical equipment. The utility model which has the features of simple structure, high reliability and repeatable use can be used by various electroheating electric appliances.
Description
The utility model relates to a kind of electric equipment protective device.
According to preliminary search, before the utility model is made, do not find the identical temperature limiter of structure therewith as yet.Existing temperature limiter; overtemperature prote device as Minnesota Mining and Manufacturing Company; it is to adopt organic fusing point to limit temperature; in the power circuit of electric equipment after the series connection this overtemperature prote device (being installed in usually by the heater element); when temperature reaches this melting point of organic matter; can cut off the electricity supply, make electric equipment avoid damaging, the accident of preventing spreads.The weak point of this overtemperature prote device is complex structure, and cost is higher, and can not reset (can not reuse), in addition, because its outer casing electrification therefore when mounted, can not limit warm time error bigger near heater element.
The purpose of this utility model provides a kind of simple in structure, reliable in action, and the reusable temperature limiter of energy, and it can overcome the deficiencies in the prior art.
Main points of the present utility model are to have adopted ceramic material as support, and an end that is fixed on the dynamic and static contact of metal on the ceramics bracket is welded together by low-melting alloy.
Below in conjunction with accompanying drawing the utility model is carried out detailed description:
Accompanying drawing is a structural representation of the present utility model.
The utility model is made up of support (1), rivet (2), movable contact spring (3), static contact (4), low-melting alloy scolder (5), spring (6).Support (1) adopts pottery to make, and in the utility model, the inventor adopts high frequency porcelain to make a prism, which is provided with three holes, and a middle hole is the usefulness of mounting spring (6), and spring (6) generally is advisable with metal coil spring.A hole is respectively established in both sides, and so that rivet (2) to be installed, rivet (2) can adopt commercially available solid rivet, and rivet (2) is in order to fixing dynamic and static contact (3,4), and dynamic and static contact (3,4) adopts metal material to make strip, can adopt SP
2Elasticity brass or phosphor-copper, there is a spherical projection centre of movable contact spring (3), in order to spacing to spring (6), one end has bending slightly, one side of the other end or both sides have the sawtooth mouth, can well be connected with lead, static contact (4) can be made into the vertical bar shape, is washed into R type groove with the contacted end of movable contact spring (3) sweep, and the other end that is connected with lead is provided with the sawtooth mouth equally, moving, static contact (3,4) an adjacent end, with low-melting alloy scolder (5) welding, low melting point alloy is as selecting Sn32% for use, Pb15%, Bi53% forms, 96 ℃ of fusing points, perhaps as required, the smelting of oneself preparing burden.Adopt the low-melting alloy scolder of different melting points, can under different temperature conditions, carry out protected by temperature limitation.Spring (6) is positioned under the middle spherical protuberance of movable contact spring (3), is in compressive state at ordinary times, when eutectic solder (5) melts, and spring (6) elongation, movable contact spring (3) is upspring under the elastic reaction of spring (6), cuts off the electricity supply.
Carry out in the power circuit of electric equipment of protected by temperature limitation at needs; the utility model on the serial connection (installing) near heater element; can realize limitting temperature control; its operation principle is conspicuous: when the temperature of electric equipment arrives the fusing point of low-melting alloy scolder (5); scolder (5) is fusing rapidly; movable contact spring (3) action makes dump, and electric equipment is no longer worked and is protected owing to the dead electricity heater element.After treating that the electric equipment fault is got rid of, dynamic and static contact (3,4) need only be burn-on (contact is resetted) again with former solder, can continue to use.
Compared with prior art, the utlity model has the characteristics such as simple in structure, reliable in action, the use that can reset, can be widely used in all kinds of electric heating appliance products.
Claims (1)
- A kind of temperature limiter that resets, formed by support [1], rivet [2], active and static contact [3,4], scolder [5], spring [6], the support [1] that it is characterized in that temperature limiter adopts ceramic material to make, one end of dynamic and static contact [3,4] is welded together by low-melting alloy scolder [5], has a spherical protuberance that spring [6] is compressed in the hole of support [1] in the centre of movable contact spring [3].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87202571 CN87202571U (en) | 1987-03-02 | 1987-03-02 | Reset temp. limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87202571 CN87202571U (en) | 1987-03-02 | 1987-03-02 | Reset temp. limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87202571U true CN87202571U (en) | 1988-04-27 |
Family
ID=4818698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87202571 Pending CN87202571U (en) | 1987-03-02 | 1987-03-02 | Reset temp. limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87202571U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101494134A (en) * | 2008-01-21 | 2009-07-29 | 内桥艾斯泰克股份有限公司 | Protective element |
| CN109216112A (en) * | 2017-07-06 | 2019-01-15 | 力特电子(日本)有限责任公司 | fuse element |
-
1987
- 1987-03-02 CN CN 87202571 patent/CN87202571U/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101494134A (en) * | 2008-01-21 | 2009-07-29 | 内桥艾斯泰克股份有限公司 | Protective element |
| CN101494134B (en) * | 2008-01-21 | 2013-07-03 | 内桥艾斯泰克股份有限公司 | Protective element |
| CN109216112A (en) * | 2017-07-06 | 2019-01-15 | 力特电子(日本)有限责任公司 | fuse element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |