JPS63149147U - - Google Patents
Info
- Publication number
- JPS63149147U JPS63149147U JP3951187U JP3951187U JPS63149147U JP S63149147 U JPS63149147 U JP S63149147U JP 3951187 U JP3951187 U JP 3951187U JP 3951187 U JP3951187 U JP 3951187U JP S63149147 U JPS63149147 U JP S63149147U
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- heat sink
- blower
- inverter circuit
- protection 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
- 238000010586 diagram Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 1
Landscapes
- Protection Of Static Devices (AREA)
Description
第１図は本考案の実施例を用いる装置の概略図
、第２図は第１図に示した保護装置の要部電気回
路図、第３図は第２図に示した比較器の出力と温
度との関係を示す説明図である。
２……インバータ回路、３……放熱板、８……
温度検出器、９……温度検出器、１０……送風機
。
Fig. 1 is a schematic diagram of a device using an embodiment of the present invention, Fig. 2 is a main electrical circuit diagram of the protective device shown in Fig. 1, and Fig. 3 shows the output of the comparator shown in Fig. 2. FIG. 3 is an explanatory diagram showing the relationship with temperature. 2... Inverter circuit, 3... Heat sink, 8...
Temperature detector, 9...Temperature detector, 10...Blower.
Claims (1)
、これらのスイツチング素子のＯＮ／ＯＦＦの組
み合せ状態を時間と共に変えて所望の周波数の電
力を得るように成したインバータ回路の保護装置
において、前記複数のスイツチング素子の熱を放
熱する放熱板と、この放熱板に送風する送風機と
、放熱板の温度又は放熱板の近傍の温度を検出す
る温度検出器とを備え、この温度検出器の検出す
る温度値が所定値以上で前記送風機の運転を行な
うことを特徴とするインバータ回路の保護装置。 A protection device for an inverter circuit in which a plurality of switching elements are connected in a bridge shape and the combination of ON/OFF of these switching elements is changed over time to obtain power of a desired frequency. a heat sink that radiates heat, a blower that blows air to the heat sink, and a temperature detector that detects the temperature of the heat sink or the temperature near the heat sink, and the temperature value detected by the temperature sensor is set to a predetermined value. A protection device for an inverter circuit, characterized in that the blower is operated at a temperature exceeding a value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3951187U JPS63149147U (en) | 1987-03-18 | 1987-03-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3951187U JPS63149147U (en) | 1987-03-18 | 1987-03-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63149147U true JPS63149147U (en) | 1988-09-30 |
Family
ID=30852746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3951187U Pending JPS63149147U (en) | 1987-03-18 | 1987-03-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63149147U (en) |
-
1987
- 1987-03-18 JP JP3951187U patent/JPS63149147U/ja active Pending