JPH0380992U - - Google Patents
Info
- Publication number
- JPH0380992U JPH0380992U JP14341689U JP14341689U JPH0380992U JP H0380992 U JPH0380992 U JP H0380992U JP 14341689 U JP14341689 U JP 14341689U JP 14341689 U JP14341689 U JP 14341689U JP H0380992 U JPH0380992 U JP H0380992U
- Authority
- JP
- Japan
- Prior art keywords
- ceramic heater
- diagram
- abnormality alarm
- heat sensor
- 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.)
- Granted
Links
- 239000000919 ceramic Substances 0.000 claims description 6
- 230000005856 abnormality Effects 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 12
Landscapes
- Control Of Resistance Heating (AREA)
Description
第１図から第８図にかけては、本考案装置に係
る図面で、第１図は本願考案に係るセラミツクヒ
ータの安全装置（以下本考案装置という）の電気
回路図、第２図から第６図にかけては、サーミス
タ素子の特性を説明するための図面であつて、第
２図は素子温度−抵抗特性図、第３図は通風運転
−電流関係図、第４図は正特性サーミスタ素子の
電流−素子温度変化の特性図、第５図は負特性サ
ーミスタ素子の電流−素子温度変化の特性図、第
６図は電圧−電力特性図、第７図は負特性サーミ
スタ素子の構成説明図、第８図は異なつた体積を
有する負特性サーミスタ素子の電流−素子温度変
化図である。第９図は従来の技術を示す図面で、
セラミツクヒータの安全装置の電気回路図である
。
１１……熱感知器、１２……異常報知器、１３
……常開接点、１４……温度ヒユーズ、１５……
セラミツクヒータ、１６……フアンモータ、１７
……主スイツチ。
1 to 8 are drawings related to the device of the present invention, FIG. 1 is an electric circuit diagram of a safety device for a ceramic heater (hereinafter referred to as the device of the present invention), and FIGS. 2 to 6 are diagrams of the device of the present invention. These are drawings for explaining the characteristics of the thermistor element, in which Fig. 2 is an element temperature-resistance characteristic diagram, Fig. 3 is a ventilation operation-current relation diagram, and Fig. 4 is a current diagram of a positive characteristic thermistor element. Figure 5 is a characteristic diagram of current-device temperature change of a negative characteristic thermistor element, Figure 6 is a voltage-power characteristic diagram, Figure 7 is an explanatory diagram of the configuration of a negative characteristic thermistor element, and Figure 8 is a characteristic diagram of element temperature change. The figure is a current-device temperature change diagram of negative temperature coefficient thermistor elements having different volumes. Figure 9 is a diagram showing the conventional technology.
It is an electric circuit diagram of the safety device of a ceramic heater. 11... Heat detector, 12... Abnormality alarm, 13
... Normally open contact, 14 ... Temperature fuse, 15 ...
Ceramic heater, 16...Fan motor, 17
...Main switch.
Claims (1)
タに直列接続した熱感知器に異常報知器を並列接
続し、且つ常時セラミツクヒータに通風するとと
もに、熱感知器の作動中のみ異常報知器により報
知を継続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。 An abnormality alarm is connected in parallel to a heat sensor connected in series to a ceramic heater using a negative characteristic thermistor element, and while ventilation is constantly provided to the ceramic heater, the abnormality alarm continues to notify only while the heat sensor is operating. A safety device for a ceramic heater characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14341689U JPH0729597Y2 (en) | 1989-12-11 | 1989-12-11 | Safety device for ceramic heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14341689U JPH0729597Y2 (en) | 1989-12-11 | 1989-12-11 | Safety device for ceramic heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0380992U true JPH0380992U (en) | 1991-08-19 |
| JPH0729597Y2 JPH0729597Y2 (en) | 1995-07-05 |
Family
ID=31690190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14341689U Expired - Fee Related JPH0729597Y2 (en) | 1989-12-11 | 1989-12-11 | Safety device for ceramic heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0729597Y2 (en) |
-
1989
- 1989-12-11 JP JP14341689U patent/JPH0729597Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0729597Y2 (en) | 1995-07-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |