CN203722842U - PTC heater - Google Patents
PTC heater Download PDFInfo
- Publication number
- CN203722842U CN203722842U CN201320809953.3U CN201320809953U CN203722842U CN 203722842 U CN203722842 U CN 203722842U CN 201320809953 U CN201320809953 U CN 201320809953U CN 203722842 U CN203722842 U CN 203722842U
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- CN
- China
- Prior art keywords
- heat
- conducting plate
- ptc heater
- ptc
- heater element
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Abstract
The utility model discloses a PTC heater. The PTC heater comprises a PTC heating element and a metal heat conductor. The metal heat conductor comprises a first heat-conducting plate, a second heat-conducting plate and two side walls. The first heat-conducting plate, the second heat-conducting plate and the two side walls form an installation space. The PTC heating element is located in the installation space. The PTC heating element is clamped and fixed in the installation space by the first heat-conducting plate and the second heat-conducting plate in a pressure casting way. The first heat-conducting plate and the second heat-conducting plate form good heat conduction contact with the PTC heating element. The rare metal PTC heater belongs to a ceramic heating body and can achieve constant temperature heating, and the temperature is not lower than 30 DEG C. The pressure casting way is employed, the PTC heater is not easy to fall, the heating area is large, and heating is uniform and safe.
Description
Technical field
The utility model relates to a kind of heating element, particularly a kind of PTC heater.
Background technology
PTC thermistor has thermostatic effect.When PTC heater element is switched on, temperature is lower, and now resistance is little, and power is very large, can heat rapidly; When temperature rises to Curie temperature gradually, resistance sharply increases, and now under constant voltage effect, the electric current by element reduces, and respective element temperature also reduces, so resistance value reduces; And at this moment, due to the reducing and cause increasing by the electric current of thermistor element of resistance, component temperature raises, resistance increases, thereby makes electric current start again to reduce.Like this, by repeating said process, element itself has just played the effect of automatic adjusting temperature.
PTC heater is exactly to have utilized the above-mentioned characteristic of PTC thermistor and make, and traditional PTC heater outside adopts silver powder, iron plate and paper, by spot welding mode, combines, and easily like this falls, and the life-span is short, thereby is necessary to improve for the problems referred to above.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of firm, safe PTC heater.
The utility model solves the technical scheme that its technical problem adopts:
A kind of PTC heater, it is characterized in that: comprise PTC heater element and metal guide hot body, metal guide hot body comprises the first heat-conducting plate, the second heat-conducting plate and two side, the first heat-conducting plate, the second heat-conducting plate and two side surround an installing space, described PTC heater element is positioned at installing space, described the first heat-conducting plate, the second heat-conducting plate are clamped on PTC heater element in installing space by the mode of die casting, and form good heat conduction with PTC heater element and contact with the first heat-conducting plate, the second heat-conducting plate.
Described the first heat-conducting plate, the second heat-conducting plate and two side are integrally formed by mould.
Described sidewall is circular arc.
Described sidewall has an extension, and described the second heat-conducting plate connects as one by extension and sidewall.
The beneficial effects of the utility model are: the utility model comprises PTC heater element and metal guide hot body, metal guide hot body comprises the first heat-conducting plate, the second heat-conducting plate and two side, the first heat-conducting plate, the second heat-conducting plate and two side surround an installing space, described PTC heater element is positioned at installing space, described the first heat-conducting plate, the second heat-conducting plate is clamped on PTC heater element in installing space by the mode of die casting, and with the first heat-conducting plate, the second heat-conducting plate forms good heat conduction with PTC heater element and contacts, rare metal ptc heater, belong to a kind of ceramic heating body, can accomplish heated at constant temperature, and temperature is not less than 30 and takes the photograph formula degree, and by the mode of die casting, be not easy and heating surface area larger, heat more even, also safer.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is schematic cross-section of the present utility model.
Embodiment
With reference to Fig. 1, the utility model discloses a kind of PTC heater, comprise PTC heater element 1 and metal guide hot body, metal guide hot body comprises the first heat-conducting plate 2, the second heat-conducting plate 3 and two side 4, the first heat-conducting plate 2, the second heat-conducting plate 3 and two side 4 surround an installing space, described PTC heater element 1 is positioned at installing space, described the first heat-conducting plate 2, the second heat-conducting plate 3 are clamped on PTC heater element 1 in installing space by the mode of die casting, and form good heat conduction with PTC heater element 1 and contact with the first heat-conducting plate 2, the second heat-conducting plate 3.
As shown in the figure, what metal guide hot body was selected is aluminium section bar manufacture, and its first heat-conducting plate 2, the second heat-conducting plate 3 and two side 4 are integrally formed by mould, thereby its thermal conductivity is good, and easy to process.Metal guide hot body concrete structure is: sidewall 4 is circular arc, deformation that can guide wire heat carrier when circular arc is convenient to die casting, thereby can not cause other parts to have distortion, can guarantee the straight of the first heat-conducting plate 2, the second heat-conducting plate 3, and deformation is retained in to sidewall 4; Described sidewall 4 has an extension 5, and described the second heat-conducting plate 3 connects as one by extension 5 and sidewall 4, by extension 5, has increased whole rigidity, and the deformation of the first heat-conducting plate 2, the second heat-conducting plate 3 while contributing to reduce die casting.
In sum, this rare metal ptc heater, belongs to a kind of ceramic heating body, can accomplish heated at constant temperature, and temperature is not less than 30 and takes the photograph formula degree; And by the mode of die casting, be not easy and heating surface area larger, heat more even, also safer, thereby there is more excellent performance.
A kind of PTC heater above the utility model embodiment being provided, be described in detail, applied specific case herein principle of the present utility model and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present utility model and core concept thereof; , for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model meanwhile.
Claims (4)
1. a PTC heater, it is characterized in that: comprise PTC heater element and metal guide hot body, metal guide hot body comprises the first heat-conducting plate, the second heat-conducting plate and two side, the first heat-conducting plate, the second heat-conducting plate and two side surround an installing space, described PTC heater element is positioned at installing space, described the first heat-conducting plate, the second heat-conducting plate are clamped on PTC heater element in installing space by the mode of die casting, and form good heat conduction with PTC heater element and contact with the first heat-conducting plate, the second heat-conducting plate.
2. a kind of PTC heater according to claim 1, is characterized in that; Described the first heat-conducting plate, the second heat-conducting plate and two side are integrally formed by mould.
3. a kind of PTC heater according to claim 2, is characterized in that; Described sidewall is circular arc.
4. a kind of PTC heater according to claim 2, is characterized in that; Described sidewall has an extension, and described the second heat-conducting plate connects as one by extension and sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320809953.3U CN203722842U (en) | 2013-12-11 | 2013-12-11 | PTC heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320809953.3U CN203722842U (en) | 2013-12-11 | 2013-12-11 | PTC heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203722842U true CN203722842U (en) | 2014-07-16 |
Family
ID=51161960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320809953.3U Expired - Fee Related CN203722842U (en) | 2013-12-11 | 2013-12-11 | PTC heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203722842U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107148096A (en) * | 2017-06-30 | 2017-09-08 | 中国电子科技集团公司第四十八研究所 | Electric hot plate and preparation method thereof and the vacuum drying oven containing electric hot plate |
-
2013
- 2013-12-11 CN CN201320809953.3U patent/CN203722842U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107148096A (en) * | 2017-06-30 | 2017-09-08 | 中国电子科技集团公司第四十八研究所 | Electric hot plate and preparation method thereof and the vacuum drying oven containing electric hot plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20171211 |