JPH02146792U - - Google Patents
Info
- Publication number
- JPH02146792U JPH02146792U JP5690289U JP5690289U JPH02146792U JP H02146792 U JPH02146792 U JP H02146792U JP 5690289 U JP5690289 U JP 5690289U JP 5690289 U JP5690289 U JP 5690289U JP H02146792 U JPH02146792 U JP H02146792U
- Authority
- JP
- Japan
- Prior art keywords
- vent
- temperature coefficient
- positive temperature
- coefficient thermistor
- thermistor element
- 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.)
- Pending
Links
- 239000000919 ceramic Substances 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000009826 distribution Methods 0.000 claims 1
- 238000009828 non-uniform distribution Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Resistance Heating (AREA)
- Thermistors And Varistors (AREA)
Description
第１図は本考案の一実施例を示すセラミツクヒ
ータの断面図、第２図はその斜視図、第３図はそ
の使用状態を示す模式図、第４図は従来のセラミ
ツクヒータの断面図、第５図及び第６図は他の形
式のセラミツクヒータの斜視図である。
１０……セラミツクヒータ、１１……正特性サ
ーミスタ素子、１１ａ……通気孔。
FIG. 1 is a sectional view of a ceramic heater showing an embodiment of the present invention, FIG. 2 is a perspective view thereof, FIG. 3 is a schematic diagram showing its usage, and FIG. 4 is a sectional view of a conventional ceramic heater. 5 and 6 are perspective views of other types of ceramic heaters. 10...Ceramic heater, 11...Positive temperature coefficient thermistor element, 11a...Vent hole.
Claims (1)
させる通気孔が形成された正特性サーミスタ素子
を有し、該正特性サーミスタ素子の電圧分布が、
動作初期に通気孔の入口側で大、出口側で小なる
不均一分布わ示すように、正特性サーミスタ素子
の通気孔の断面積が入口側から出口側にかけて減
少していることを特徴とするセラミツクヒータ。 The ceramic element includes a positive temperature coefficient thermistor element in which a vent is formed to allow the gas to be heated to flow, and the voltage distribution of the positive temperature coefficient thermistor element is as follows.
The cross-sectional area of the vent of the positive temperature coefficient thermistor element is characterized by decreasing from the inlet side to the outlet side, so that the non-uniform distribution is large on the inlet side of the vent and small on the outlet side at the initial stage of operation. Ceramic heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5690289U JPH02146792U (en) | 1989-05-17 | 1989-05-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5690289U JPH02146792U (en) | 1989-05-17 | 1989-05-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02146792U true JPH02146792U (en) | 1990-12-13 |
Family
ID=31581140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5690289U Pending JPH02146792U (en) | 1989-05-17 | 1989-05-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02146792U (en) |
-
1989
- 1989-05-17 JP JP5690289U patent/JPH02146792U/ja active Pending