JPH0397892U - - Google Patents
Info
- Publication number
- JPH0397892U JPH0397892U JP552790U JP552790U JPH0397892U JP H0397892 U JPH0397892 U JP H0397892U JP 552790 U JP552790 U JP 552790U JP 552790 U JP552790 U JP 552790U JP H0397892 U JPH0397892 U JP H0397892U
- Authority
- JP
- Japan
- Prior art keywords
- ceramic heater
- conductor
- normally closed
- closed contact
- safety device
- 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 11
- 239000004020 conductor Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 14
- 238000009423 ventilation Methods 0.000 description 3
Landscapes
- Control Of Resistance Heating (AREA)
- Resistance Heating (AREA)
Description
第１図は本考案に係るセラミツクヒータの安全
装置の電気回路図、第２図は安全装置の構成説明
図、第３図は通風式電気温風機の断面説明図、第
４図は本考案装置の作動説明図、第５図から第７
図にかけては、他の実施例を示す図面であつて、
第５図は電気回路図、第６図は通風式電気温風機
の断面説明図、第７図はＮＴＣヒータの抵抗−時
間特性図、第８図はセラミツクヒータの構成説明
図、第９図は通風式電気温風機の断面説明図、第
１０図はＰＴＣ及びＮＴＣヒータの抵抗−温度特
性図、第１１図は同電圧−電力特性図、第１２図
は同電流・温度−電圧特性図、第１３図はセラミ
ツクヒータの安全装置の電気回路図、第１４図は
安全装置の構成説明図である。
１０……セラミツクヒータ、１１……通風孔、
２０……風胴、３０……フアン、３１……フアン
モータ、５０……安全装置、５１……導体部、５
４……常閉接点、６０……安全装置、６１……負
特性サーミスタ素子、６２……リレー、６４……
常閉接点。
Fig. 1 is an electric circuit diagram of the safety device of the ceramic heater according to the present invention, Fig. 2 is an explanatory diagram of the configuration of the safety device, Fig. 3 is a cross-sectional explanatory diagram of the ventilation type electric hot air fan, and Fig. 4 is the device of the present invention. Operation explanatory diagrams, Figures 5 to 7
The figures are drawings showing other embodiments,
Fig. 5 is an electric circuit diagram, Fig. 6 is a cross-sectional explanatory diagram of a ventilation type electric hot air fan, Fig. 7 is a resistance-time characteristic diagram of an NTC heater, Fig. 8 is an explanatory diagram of the configuration of a ceramic heater, and Fig. 9 is an explanatory diagram of the configuration of a ceramic heater. 10 is a resistance-temperature characteristic diagram of PTC and NTC heaters, FIG. 11 is a voltage-power characteristic diagram, and FIG. 12 is a current/temperature-voltage characteristic diagram of the same. FIG. 13 is an electric circuit diagram of the safety device of the ceramic heater, and FIG. 14 is an explanatory diagram of the configuration of the safety device. 10...ceramic heater, 11...ventilation hole,
20...Wind barrel, 30...Fan, 31...Fan motor, 50...Safety device, 51...Conductor part, 5
4... Normally closed contact, 60... Safety device, 61... Negative characteristic thermistor element, 62... Relay, 64...
Normally closed contact.
Claims (1)
タの安全装置であつて、セラミツクヒータの近傍
に配置され、セラミツクヒータと直列接続した常
閉接点と、セラミツクヒータに通電する電流の少
なくとも１部を流すとともに温度によつて変形又
は抵抗が変化する導体部を備えており、セラミツ
クヒータの異常発熱時に導体を流れる電流と導体
の温度を感知して前記常閉接点をオフするように
したことを特徴とするセラミツクヒータの安全装
置。 This is a safety device for a ceramic heater using a negative characteristic thermistor element, which includes a normally closed contact placed near the ceramic heater and connected in series with the ceramic heater, and a device that allows at least a portion of the current to flow through the ceramic heater and a temperature control device. A ceramic heater comprising a conductor portion whose deformation or resistance changes as a result of the heating, and wherein the normally closed contact is turned off by sensing the current flowing through the conductor and the temperature of the conductor when the ceramic heater abnormally heats up. safety equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP552790U JPH0397892U (en) | 1990-01-24 | 1990-01-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP552790U JPH0397892U (en) | 1990-01-24 | 1990-01-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0397892U true JPH0397892U (en) | 1991-10-09 |
Family
ID=31509230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP552790U Pending JPH0397892U (en) | 1990-01-24 | 1990-01-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0397892U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5676185A (en) * | 1979-11-25 | 1981-06-23 | Matsushita Electric Ind Co Ltd | Device for preventing overheat of film heater |
| JPS58184288A (en) * | 1982-04-20 | 1983-10-27 | 株式会社日本自動車部品総合研究所 | Electric heater |
-
1990
- 1990-01-24 JP JP552790U patent/JPH0397892U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5676185A (en) * | 1979-11-25 | 1981-06-23 | Matsushita Electric Ind Co Ltd | Device for preventing overheat of film heater |
| JPS58184288A (en) * | 1982-04-20 | 1983-10-27 | 株式会社日本自動車部品総合研究所 | Electric heater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0397892U (en) | ||
| JPH0754763Y2 (en) | Ventilation electric warmer | |
| JPS5841842Y2 (en) | hair dryer | |
| ES481662A1 (en) | Electric bedcover | |
| JPH0729597Y2 (en) | Safety device for ceramic heater | |
| JPS5928268Y2 (en) | Safety circuit for hot air appliances | |
| JP3115170U (en) | Structure of temperature measuring device for electric heater | |
| JPS5825221Y2 (en) | Hot air forced circulation type kotatsu | |
| JPH0423959U (en) | ||
| JPS5851558Y2 (en) | Hot air machine | |
| JPS5843728Y2 (en) | Warm air kotatsu | |
| JPH0435167U (en) | ||
| JPS61128029A (en) | Electric stove | |
| JPS643314B2 (en) | ||
| JPH0362490U (en) | ||
| JPS6126808Y2 (en) | ||
| JPS6293460U (en) | ||
| JPS5825216Y2 (en) | Hot air forced circulation type kotatsu | |
| JP2501087B2 (en) | Hot air heater | |
| JPS6225739U (en) | ||
| JPH0349183A (en) | Heating device | |
| JPH01151189A (en) | Heating device | |
| JPH041364U (en) | ||
| JPH0474617B2 (en) | ||
| JPH01151188A (en) | Heating device |