JPH0288342U - - Google Patents
Info
- Publication number
- JPH0288342U JPH0288342U JP16905088U JP16905088U JPH0288342U JP H0288342 U JPH0288342 U JP H0288342U JP 16905088 U JP16905088 U JP 16905088U JP 16905088 U JP16905088 U JP 16905088U JP H0288342 U JPH0288342 U JP H0288342U
- Authority
- JP
- Japan
- Prior art keywords
- electric field
- relay
- generates
- contact point
- output
- 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
- 230000005684 electric field Effects 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Description
第１図ａは本考案の避雷装置のブロツク図、第
１図ｂはリレー接点の接続状態を示す電気回路図
、第２図は避雷装置の取付状態を示す該略図、第
３図は電界センサの一部破断側面図、第４図は地
表の電界の強度変化を示すグラフである。
避雷装置本体……１、電界センサ……５、金属
セクタ板……１３、感応電極……１４、テレビア
ンテナ……２０、制御回路部……２４、テレビ受
信機……２５、増幅器……３０、整流器……３１
、比較器……３２、電源線……３４、受信信号線
……３５、リレー……Ｒｙ、常閉接点……Ｒｙｂ
、切換え接点……Ｒｙｓ。
Fig. 1a is a block diagram of the lightning arrester of the present invention, Fig. 1b is an electric circuit diagram showing the connection state of the relay contacts, Fig. 2 is a schematic diagram showing the installation state of the lightning arrester, and Fig. 3 is an electric field sensor. FIG. 4 is a partially cutaway side view of , and is a graph showing changes in the intensity of the electric field at the ground surface. Lightning arrester body...1, Electric field sensor...5, Metal sector plate...13, Sensitive electrode...14, TV antenna...20, Control circuit section...24, TV receiver...25, Amplifier...30 , rectifier...31
, Comparator...32, Power line...34, Receiving signal line...35, Relay...Ry, Normally closed contact...Ryb
, switching contact...Rys.
Claims (1)
電界センサと、同電界センサの出力を増幅すると
ともに増幅された信号電圧が基準電圧より大きい
ときにリレーを作動させる出力を発する制御回路
とを設け、少なくともテレビ受信機とテレビアン
テナとを接続するアンテナ線の途中に前記リレー
の接点を設け、電界が所定の強さ以上になつたと
き前記接点がアンテナ線の接続をテレビ受信機側
からアース側に切り換えるようにしたテレビ用避
雷装置。 An electric field sensor that generates a displacement current corresponding to changes in electric field intensity, and a control circuit that amplifies the output of the electric field sensor and generates an output that activates a relay when the amplified signal voltage is larger than a reference voltage, A contact point of the relay is provided at least in the middle of the antenna wire that connects the television receiver and the television antenna, and when the electric field exceeds a predetermined strength, the contact point changes the connection of the antenna wire from the television receiver side to the ground side. A lightning arrester for televisions that can be switched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16905088U JPH0288342U (en) | 1988-12-26 | 1988-12-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16905088U JPH0288342U (en) | 1988-12-26 | 1988-12-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0288342U true JPH0288342U (en) | 1990-07-12 |
Family
ID=31458771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16905088U Pending JPH0288342U (en) | 1988-12-26 | 1988-12-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0288342U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064520A (en) * | 2010-04-22 | 2011-05-18 | 杭州祺来电子有限公司 | Lightning protection automatic switch for satellite television receiver |
-
1988
- 1988-12-26 JP JP16905088U patent/JPH0288342U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064520A (en) * | 2010-04-22 | 2011-05-18 | 杭州祺来电子有限公司 | Lightning protection automatic switch for satellite television receiver |
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