CN101339863A - PTC ceramic heat protector - Google Patents
PTC ceramic heat protector Download PDFInfo
- Publication number
- CN101339863A CN101339863A CNA2008100211007A CN200810021100A CN101339863A CN 101339863 A CN101339863 A CN 101339863A CN A2008100211007 A CNA2008100211007 A CN A2008100211007A CN 200810021100 A CN200810021100 A CN 200810021100A CN 101339863 A CN101339863 A CN 101339863A
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- China
- Prior art keywords
- shell
- soleplate
- base plate
- moving contact
- ptc
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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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- Thermistors And Varistors (AREA)
- Thermally Actuated Switches (AREA)
Abstract
A porcelainous thermal protector (PTC) relates to the technical field of an electrical appliance, in particular to the technical field of the structure taking a phialiform bimetallic strip as a temperature sensing element. The porcelainous thermal protector comprises a soleplate and a shell which are connected with each other, an insulator is arranged between the soleplate and the shell, a cavity formed between the shell and the soleplate is internally provided with a fixed contact and a moving contact that are matched with each other; the fixed contact is fixedly connected with the soleplate, and the moving contact is arranged above the fixed contact; the bimetallic strip is connected with the upper end of the moving contact, and the other end of the bimetallic strip is connected with a contacting head; a lead is connected with the shell, a ceramic plate of the PTC is connected with the back of the soleplate. The porcelainous thermal protector has more rapid sensibility, safety and double sheltering effect on overheating and overload. The overcurrent protection of a dust collector, a portable electric tool and a manual reset motor is stable, thereby guaranteeing the safe use, long service life and energy conservation of the appliance.
Description
Technical field
The present invention relates to a kind of electrocomponent technology field, particularly is the technical field of structures of temperature-sensing element with the butterfly shaped dual metal sheet.
Background technology
Existing thermal protector is a automatically reset product; this thermal protector is to be thereby that temperature-sensing element plays the temperature protection effect with the butterfly shaped dual metal sheet; its structure is mainly by forming by the base plate and the shell that link together; between base plate and shell, insulating part is set; in the cavity of shell and base plate formation, quiet, the moving contact that cooperatively interacts is set, transmits temperature signal by the lead that is connected with shell.Existing product is with in the current overload that is applied to dust catcher, portable power tool, manual (or automatically) homing position type motor, the temperature overheating protection, but product sensitiveness is low, poor stability.
Summary of the invention
The object of the invention is to design the PTC ceramic heat protector that a kind of sensitiveness is faster, fail safe is good.
The present invention includes the base plate and the shell that link together, between described base plate and the shell insulating part is set, in the cavity of shell and base plate formation, quiet, the moving contact that cooperatively interacts is set, described fixed contact is fixedly connected on the base plate, and described moving contact is arranged in the top of fixed contact, connects bimetal leaf in the moving contact upper end, the other end of bimetal leaf connects a contact head, one lead is connected on the shell, connects the PTC potsherd at the back of base plate, and described PTC potsherd is connected with base plate by clip; Described insulating part is an insulating paper.
The sharpest edges of PTC pottery aspect heating are energy autocontrol temperatures, need not other temperature regulating device, because it is a semiconductor at normal temperatures, energising its rapid heating of back, resistance sharply rises, and power descends rapidly, when heating with after heat radiation reaches balance, power stability, temperature also is stabilized in certain certain value.Sensitiveness of the present invention is faster, has more fail safe, and overheated, overload are played double protection.Play the effect of stable protection in the overcurrent protection of dust catcher, portable power tool, hand-reset formula motor, guarantee to answer the safe in utilization of electrical appliance, life-time dilatation can also be played energy-conservation effect.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is the right side view of Fig. 1.
Embodiment
As shown in Figure 1, 2, base plate 1 and shell 2 link together, and insulating paper 3 is set between base plate and shell.
In the cavity of shell 2 and base plate 2 formation, quiet, the moving contact 4,5 that cooperatively interacts is set.Fixed contact 4 is fixedly connected on the base plate 1, and moving contact 5 is arranged in the top of fixed contact 4, connects bimetal leaf 6 in moving contact 5 upper ends, and the other end of bimetal leaf 6 connects a contact head 7, one leads 8 and is connected on the shell 2.
Back at base plate 1 connects PTC potsherd 10 by clip 9.
Application notice:
Adopt hand-reset; when the institute using appliance take place overheated, when protection takes place in overload TP, circuit still has signal to exist but its resistance infinity, utensil can not be worked; after must cutting off circuit the PTC pottery is restPosed, connect circuit again and restart utensil work.
Claims (1)
1, PTC ceramic heat protector, comprise the base plate and the shell that link together, between described base plate and the shell insulating part is set, in the cavity of shell and base plate formation, quiet, the moving contact that cooperatively interacts is set, described fixed contact is fixedly connected on the base plate, described moving contact is arranged in the top of fixed contact, connect bimetal leaf in the moving contact upper end, the other end of bimetal leaf connects a contact head, one lead is connected on the shell, it is characterized in that connecting the PTC potsherd at the back of base plate, described PTC potsherd is connected with base plate by clip; Described insulating part is an insulating paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100211007A CN101339863A (en) | 2008-08-07 | 2008-08-07 | PTC ceramic heat protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100211007A CN101339863A (en) | 2008-08-07 | 2008-08-07 | PTC ceramic heat protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101339863A true CN101339863A (en) | 2009-01-07 |
Family
ID=40213897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100211007A Pending CN101339863A (en) | 2008-08-07 | 2008-08-07 | PTC ceramic heat protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101339863A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101996823A (en) * | 2010-10-30 | 2011-03-30 | 苏州华旃航天电器有限公司 | Built-in single-lead compressor protector |
| CN103515145A (en) * | 2013-09-29 | 2014-01-15 | 扬州宝珠电器有限公司 | Overheating overcurrent delayed reset 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 |
| CN107527766A (en) * | 2017-08-22 | 2017-12-29 | 江苏怡通控制系统有限公司 | Self-hold thermal protector |
| CN112503419A (en) * | 2020-12-10 | 2021-03-16 | 海宁绿拓照明科技有限公司 | Illuminating table lamp capable of repelling mosquitoes and dissipating heat |
-
2008
- 2008-08-07 CN CNA2008100211007A patent/CN101339863A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101996823A (en) * | 2010-10-30 | 2011-03-30 | 苏州华旃航天电器有限公司 | Built-in single-lead compressor protector |
| CN103515145A (en) * | 2013-09-29 | 2014-01-15 | 扬州宝珠电器有限公司 | Overheating overcurrent delayed reset 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 |
| CN107527766A (en) * | 2017-08-22 | 2017-12-29 | 江苏怡通控制系统有限公司 | Self-hold thermal protector |
| CN112503419A (en) * | 2020-12-10 | 2021-03-16 | 海宁绿拓照明科技有限公司 | Illuminating table lamp capable of repelling mosquitoes and dissipating heat |
| CN112503419B (en) * | 2020-12-10 | 2021-12-10 | 江西光正金属设备集团有限公司 | Illuminating table lamp capable of repelling mosquitoes and dissipating heat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090107 |