CN201238004Y - PTC ceramic heat protector - Google Patents
PTC ceramic heat protector Download PDFInfo
- Publication number
- CN201238004Y CN201238004Y CNU2008200413184U CN200820041318U CN201238004Y CN 201238004 Y CN201238004 Y CN 201238004Y CN U2008200413184 U CNU2008200413184 U CN U2008200413184U CN 200820041318 U CN200820041318 U CN 200820041318U CN 201238004 Y CN201238004 Y CN 201238004Y
- Authority
- CN
- China
- Prior art keywords
- shell
- bottom plate
- base plate
- utility
- model
- 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 - Lifetime
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- 230000001012 protector Effects 0.000 title claims abstract description 10
- 239000000919 ceramic Substances 0.000 title claims abstract description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000009977 dual effect Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 5
- 239000000428 dust Substances 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 abstract 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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Abstract
The utility model discloses a PTC ceramic thermal protector, which relates to the technical field of electrical parts, in particular to the technical field of structures with a disk-shaped dual metal sheet as a temperature-sensing element. The thermal protector comprises a bottom plate and a shell which are connected together; insulating parts are arranged between the bottom plate and the shell, wherein, a static contact and a movable contact which are interacted with each other are arranged in a cavity formed by the shell and the bottom plate; the static contact is fixed on the bottom plate; the movable contact is arranged on the upper side of the static contact; the upper end of the movable contact is connected with a dual metal sheet; the other end of the dual metal sheet is connected with a contact head; a wire is connected with the shell; and the back of the bottom plate is connected with a PTC ceramic plate. The utility model is more sensitive and safer and has a dual protection effect on excessive heat and overload. The utility model has a stable protection effect in the current overload protection of a dust collector, a portable electric tool and a manual reset motor, thus ensuring the use safety of electric appliances and prolonging the service lives of electric appliances, and the utility model can save energy as well.
Description
Technical field
The utility model 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.
The utility model content
The utility model purpose is to design the PTC ceramic heat protector that a kind of sensitiveness is faster, fail safe is good.
The utility model comprises base plate and the shell that links 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, connects bimetal leaf in the moving contact upper end, and 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.
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.The utility model sensitiveness 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.
Connect for convenience, PTC potsherd described in the utility model is connected with base plate by clip.
In order to make the littler product of volume, insulating part described in the utility model is an insulating paper.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
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 (3)
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, and 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, and a lead is connected on the shell, it is characterized in that connecting the PTC potsherd at the back of base plate.
2,, it is characterized in that described PTC potsherd is connected with base plate by clip according to the described PTC ceramic heat protector of claim 1.
3,, it is characterized in that described insulating part is an insulating paper according to claim 1 or 2 described PTC ceramic heat protectors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200413184U CN201238004Y (en) | 2008-08-07 | 2008-08-07 | PTC ceramic heat protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200413184U CN201238004Y (en) | 2008-08-07 | 2008-08-07 | PTC ceramic heat protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201238004Y true CN201238004Y (en) | 2009-05-13 |
Family
ID=40650739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200413184U Expired - Lifetime CN201238004Y (en) | 2008-08-07 | 2008-08-07 | PTC ceramic heat protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201238004Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106683944A (en) * | 2016-12-30 | 2017-05-17 | 合肥舒实工贸有限公司 | Power failure reset temperature controller |
-
2008
- 2008-08-07 CN CNU2008200413184U patent/CN201238004Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106683944A (en) * | 2016-12-30 | 2017-05-17 | 合肥舒实工贸有限公司 | Power failure reset temperature controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SENSATA TECHNOLOGIES (BAOYING) CO., LTD. Free format text: FORMER OWNER: BAOYING ELECTRICAL APPARATUS PLANT Effective date: 20120523 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120523 Address after: 225800 No. 9 East Taishan Road, Baoying County, Jiangsu Patentee after: Sensata technologies (Baoying) Co., Ltd. Address before: 225800 No. 146 Dongmen street, Baoying County, Jiangsu Province Patentee before: Baoying Electrical Apparatus Plant |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090513 |
|
| CX01 | Expiry of patent term |