CN201210433Y - Pasted sheet type thermistor - Google Patents
Pasted sheet type thermistor Download PDFInfo
- Publication number
- CN201210433Y CN201210433Y CNU2008200373596U CN200820037359U CN201210433Y CN 201210433 Y CN201210433 Y CN 201210433Y CN U2008200373596 U CNU2008200373596 U CN U2008200373596U CN 200820037359 U CN200820037359 U CN 200820037359U CN 201210433 Y CN201210433 Y CN 201210433Y
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- electrode
- recess
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- model
- electric conductor
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Abstract
This utility model discloses a SMD thermistor and an inner layer conductive body. The inner layer conductive body at least comprises a conductive material made by polymer with PTC property; an insulted layer that is located at the middle part of the inner layer conductive body surface. The side of the inner layer conductive body is provided with a concave part, a side provided with the concave part and a side electrode layer installed at the concave part. This utility model can integrally mount the electrode at the side of the product concave part when making the product have the concave part electrode so as to enlarge the contact area when the product motor is welded and to improve the effect of coating tin.
Description
Technical field
The utility model relates to a kind of SMD thermistor.
Background technology
At present, SMD polymer PTC product electrode is processed with two kinds of methods, and a kind of prior art is that the side electrode place of polymer PTC product has recess, has only electrode is arranged in the recess, make the contact area of electrode diminish, have the hidden danger (as Fig. 1) of welding bars and electrode failure welding; Another prior art is, all there is electrode the whole side of polymer PTC product, but the side does not have recess, when welding bars and electrode welding, climbs the tin weak effect, and is easy to generate upright back of the body phenomenon (as Fig. 2).
Summary of the invention
The technical problems to be solved in the utility model is: a kind of SMD thermistor that can reliably weld is provided.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of SMD thermistor, internal layer electric conductor, this internal layer electric conductor contain 1 layer of electric conducting material with polymer formation of ptc characteristics at least to be formed; Insulating barrier, this insulating barrier is positioned at the centre on internal layer electric conductor surface; Described internal layer electric conductor side is provided with recess, and the side and the recess that are provided with this recess are provided with the side electrode layer.
According to another embodiment of the present utility model, thermistor further comprises describedly having the side integral body of recess to be copper nickel gold or cuprum-nickel-stannum electrode material.
According to another embodiment of the present utility model, thermistor element comprises that further described insulating barrier is anti-welding paint.
The beneficial effects of the utility model are, when the utility model can make product can have the recess electrode, product side integral body was provided with electrode, thereby contact area when increasing the welding of product motor improves and climbs the tin effect.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural representation of prior art one;
Fig. 2 is the structural representation of prior art two;
Fig. 3 is the structural representation of the utility model preferred embodiment;
Fig. 4 is the schematic diagram of the utility model production technology plate.
Among the figure, 1, the internal layer electric conductor, 2, insulating barrier, 3, recess, 4, the side electrode layer.
Embodiment
With preferred embodiment the utility model is described in further detail in conjunction with the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
The PTC performance is meant the performance that structure had that resistivity performance performance rises appreciably along with temperature increase in those relatively little temperature ranges.Term " PTC " is used in reference to the structure or the device of the R100 value with at least 2.5 R14 value and/or at least 10, and preferably this structure or device have at least 6 R30 value, wherein R14 is the ratio of the resistivity at the terminal point of 14 ℃ of scopes and starting point place, R100 is the ratio of the resistivity at the terminal point of 100 ℃ of scopes and starting point place, and R30 is the ratio of the resistivity at the terminal point of 30 ℃ of scopes and starting point place.
A kind of SMD thermistor as shown in Figure 3 comprises internal layer electric conductor 1, and this internal layer electric conductor 1 contains 1 layer of electric conducting material with polymer formation of ptc characteristics at least to be formed; Insulating barrier 2, this insulating barrier 2 is positioned at the centre on internal layer electric conductor 1 surface; Described internal layer electric conductor 1 side is provided with recess 3, and the side and the recess 3 that are provided with this recess 3 are provided with side electrode layer 4.Wherein, side electrode layer 4 is copper nickel gold or cuprum-nickel-stannum electrode material, and insulating barrier 2 is anti-welding paint.
Be illustrated in figure 4 as the ptc material plate of polymer, produce SMD thermistor and need following technology, at first to punching on the ptc material plate of polymer and fluting, change copper facing then, make hole and groove conducting, and anti-welding paint is applied to the insulating barrier position, follow ptc material plate copper facing whole polymer, and then metal electrode material such as electronickelling, tin, gold, make in the slotted eye and the part that is not coated with insulating varnish forms electrode.At last, use cutting mechanics, then, promptly obtain SMD thermistor along B1-B1, B2-B2, the cutting of B3-B3 line along A1-A1, the cutting of A2-A2 line.
With above-mentioned foundation desirable embodiment of the present utility model is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this utility model technological thought.The technical scope of this utility model is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (3)
1, a kind of SMD thermistor is characterized in that:
Internal layer electric conductor (1), this internal layer electric conductor (1) contain 1 layer of electric conducting material with polymer formation of ptc characteristics at least to be formed;
Insulating barrier (2), this insulating barrier (2) are positioned at the centre on internal layer electric conductor (1) surface;
Described internal layer electric conductor (1) side is provided with recess (3), and the side and the recess (3) that are provided with this recess (3) are provided with side electrode layer (4).
2, SMD thermistor as claimed in claim 1 is characterized in that: described have side (4) integral body of recess to be copper nickel gold or cuprum-nickel-stannum electrode material.
3, SMD thermistor as claimed in claim 1 is characterized in that: described insulating barrier (3) is anti-welding paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200373596U CN201210433Y (en) | 2008-06-19 | 2008-06-19 | Pasted sheet type thermistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200373596U CN201210433Y (en) | 2008-06-19 | 2008-06-19 | Pasted sheet type thermistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201210433Y true CN201210433Y (en) | 2009-03-18 |
Family
ID=40481169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200373596U Expired - Fee Related CN201210433Y (en) | 2008-06-19 | 2008-06-19 | Pasted sheet type thermistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201210433Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102842398A (en) * | 2012-08-27 | 2012-12-26 | 华中科技大学 | Preparation method for chip-type ceramic sensitive element and corresponding product thereof |
-
2008
- 2008-06-19 CN CNU2008200373596U patent/CN201210433Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102842398A (en) * | 2012-08-27 | 2012-12-26 | 华中科技大学 | Preparation method for chip-type ceramic sensitive element and corresponding product thereof |
| CN102842398B (en) * | 2012-08-27 | 2015-08-26 | 华中科技大学 | A kind of preparation method of chip Ceramic sensible devices and corresponding product thereof |
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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: 20090318 Termination date: 20120619 |