JPH0380515B2 - - Google Patents
Info
- Publication number
- JPH0380515B2 JPH0380515B2 JP57059912A JP5991282A JPH0380515B2 JP H0380515 B2 JPH0380515 B2 JP H0380515B2 JP 57059912 A JP57059912 A JP 57059912A JP 5991282 A JP5991282 A JP 5991282A JP H0380515 B2 JPH0380515 B2 JP H0380515B2
- Authority
- JP
- Japan
- Prior art keywords
- discharge
- electric shock
- resistor
- voltage
- living body
- 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.)
- Expired - Lifetime
Links
- 230000002265 prevention Effects 0.000 claims description 11
- 239000000919 ceramic Substances 0.000 claims description 8
- 230000005611 electricity Effects 0.000 description 9
- 230000003068 static effect Effects 0.000 description 9
- 230000035939 shock Effects 0.000 description 7
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/14—Leading-off electric charges, e.g. by earthing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Radiology & Medical Imaging (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Biomedical Technology (AREA)
- Elimination Of Static Electricity (AREA)
- Electrotherapy Devices (AREA)
- Thermistors And Varistors (AREA)
Description
【発明の詳細な説明】
この発明は静電気の放電に伴つて生体が受ける
衝撃を防止する電撃防止素子に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric shock prevention element that prevents shocks received by a living body due to discharge of static electricity.
床や履物などの絶縁性が高い場合、着衣などの
摩擦などによつて静電気が発生し、生体において
帯電現象が起る。生体の静電容量はアース側の床
や履物などの状態で大きく変化するが、ほぼ
100pF程度である。そしてその帯電電位が1KVを
越えると、生体からの放電現象が見られ、放電時
には生体側で電撃を感じることになる。通常は帯
電していることを意識していないことが多く、電
撃を受けたときの驚きは大きく、また電撃による
痛みがあるので不快感も大きい。また帯電物体か
らの放電によつても同様の電撃を受ける。 When floors and footwear have high insulating properties, static electricity is generated due to the friction of clothing, etc., and a charging phenomenon occurs in living organisms. The capacitance of a living body varies greatly depending on the condition of the floor on the ground side, footwear, etc., but approximately
It is about 100pF . When the charged potential exceeds 1KV, a discharge phenomenon is observed from the living body, and when the discharge occurs, the living body feels an electric shock. Usually, people are not aware that they are being charged, so they are very surprised when they receive an electric shock, and the pain caused by the electric shock can also be very unpleasant. A similar electric shock is also caused by discharge from a charged object.
したがつて、静電気を何らのシヨツクも受けな
いで放電してやる必要がある。 Therefore, it is necessary to discharge static electricity without receiving any shock.
従来、このような電撃を避けるために、表面に
微小放電ギヤツプを形成したセラミツクをガラス
管に密封した放電管を用い、この放電管を通して
生体中の静電気を放電させることが提案されてい
る。 Conventionally, in order to avoid such electric shocks, it has been proposed to use a discharge tube in which a glass tube is sealed with ceramic having a micro discharge gap formed thereon, and to discharge static electricity in a living body through this discharge tube.
しかしながら、このような構造のものでは、放
電ギヤツプ間の距離によつて放電電位が変化する
ため、放電電位のコントロールが難しいという問
題がある。また放電ギヤツプは数10μｍと小さ
く、放電ギヤツプ間のシヨートが生じると、放電
に伴う電撃を受けることもある。そしてそのとき
のシヨツクは電撃防止素子を使用していないとき
にくらべて不快感が一層助長されることになる。 However, with such a structure, there is a problem in that it is difficult to control the discharge potential because the discharge potential changes depending on the distance between the discharge gaps. Furthermore, the discharge gap is small, at several tens of micrometers, and if a shot occurs between the discharge gaps, the device may receive an electric shock due to the discharge. At that time, the shock will be more unpleasant than when the electric shock prevention element is not used.
したがつて、この発明は静電気によるシヨツク
を生体側に感じさせない安定した特性を有する電
撃防止素子を提供することを目的とする。 Therefore, it is an object of the present invention to provide an electric shock prevention element that has stable characteristics that prevent living bodies from feeling shocks caused by static electricity.
すなわち、この発明の要旨とするところは、生
体側電極と放電側電極との間に抵抗体が介在して
いる電撃防止素子であつて、前記抵抗体が非直線
性の電圧電流特性を有するセラミクスからなるも
のであることを特徴とする。 That is, the gist of the present invention is to provide an electric shock prevention element in which a resistor is interposed between an electrode on the living body side and an electrode on the discharge side, the resistor being made of ceramics having nonlinear voltage-current characteristics. It is characterized by being composed of.
第１図はこの発明にかかる電撃防止素子の一例
を示す縦断面図である。 FIG. 1 is a longitudinal sectional view showing an example of the electric shock prevention element according to the present invention.
図において、１は抵抗体を示し、絶縁性の管２
に収容されており、この絶縁性の管２の端部に
は、たとえば導電性ゴムなどの導電性弾性材３，
４を介してたとえば金属製キヤツプからなる導電
性部材５，６が固定されている。７は鎖であり、
導電性部材５側に取り付けられている。したがつ
て、通常、導電性部材５が保持する側となるから
生体側の電極となり、導電性部材６が生体からの
静電気を放電する放電側電極となる。 In the figure, 1 indicates a resistor, and an insulating tube 2
At the end of this insulating tube 2, a conductive elastic material 3, such as conductive rubber, etc.
Conductive members 5 and 6 made of metal caps, for example, are fixed through the caps 4. 7 is a chain;
It is attached to the conductive member 5 side. Therefore, the conductive member 5 normally serves as the electrode on the living body side since it is held, and the conductive member 6 serves as the discharge side electrode that discharges static electricity from the living body.
この発明において、抵抗体１としては非直線性
の電圧電流特性を有するものを用いている。この
ような抵抗体１を用いたため、生体から放出され
る帯電電荷はまずその多くが抵抗体１で熱エネル
ギーに変換され、残りが放電側電極６からアース
側へ放電される。したがつて、静電気による帯電
電荷は抵抗体１で熱として消費され、放電側電極
６から確実に放電され、従来例のように放電ギヤ
ツプ間の変化にもとづく電撃の発生は皆無とな
る。 In this invention, a resistor 1 having nonlinear voltage-current characteristics is used. Since such a resistor 1 is used, most of the electrical charge released from the living body is first converted into thermal energy by the resistor 1, and the rest is discharged from the discharge side electrode 6 to the ground side. Therefore, the electrostatic charges are consumed as heat by the resistor 1 and are reliably discharged from the discharge side electrode 6, and there is no occurrence of electric shock due to changes in the discharge gap as in the conventional example.
抵抗体の抵抗値としては104〜109Ωの範囲で選
ばれる。このような抵抗値範囲は放電の時定数を
大きくできることを根拠に選択されたものであ
り、放電による電流を少なくするとともに、単位
時間内に消費されるエネルギー量を小さくするこ
とができる。 The resistance value of the resistor is selected in the range of 10 4 to 10 9 Ω. This resistance value range was selected on the basis that the time constant of discharge can be increased, and the current due to discharge can be reduced and the amount of energy consumed within a unit time can be reduced.
また、この発明における抵抗体にはすでに上記
したように、非直線性の電圧電流特性を有するも
のを用いることを特徴としている。 Moreover, as already mentioned above, the resistor in this invention is characterized by using a resistor having non-linear voltage-current characteristics.
第２図はこの抵抗体の電圧電流特性を示した図
である。図から明らかなように、ある特定電圧ま
では電流がほとんど流れず、つまり高抵抗状態に
あるが、特定電圧を越えると低抵抗状態となつて
ある大きさの電流が流れ、かつこれより大電流に
ついては熱として消費するという非直線性を示
す。 FIG. 2 is a diagram showing the voltage-current characteristics of this resistor. As is clear from the figure, up to a certain voltage, almost no current flows, that is, it is in a high resistance state, but when it exceeds a certain voltage, it becomes a low resistance state and a certain amount of current flows, and even larger currents shows non-linearity in that it is consumed as heat.
したがつて、低電圧領域ではたとえば数100〜
数1000MΩの高抵抗を示すが、数KVになればそ
の抵抗値はたとえば数10MΩに減少する。このた
め、たとえば数KVの帯電電荷を放電するときは
低抵抗となつて電荷が放出されやすくなり、第１
図に示した放電側電極６からアース側へ小さな放
電エネルギーとなつて放出されることになる。 Therefore, in the low voltage region, for example, several hundred to
It exhibits a high resistance of several 1000 MΩ, but when the voltage increases to several KV, the resistance value decreases to, for example, several 10 MΩ. For this reason, when discharging a charge of several KV, for example, the resistance becomes low and the charge is easily released, and the first
Small discharge energy is released from the discharge side electrode 6 shown in the figure to the ground side.
かかる構成からなるこの発明の電撃防止素子に
よれば、誤つて低圧電源に触れたとしても、低圧
領域では絶縁物に近い高抵抗状態を示すため、感
電を防止することができる。 According to the electric shock prevention element of the present invention having such a configuration, even if the element accidentally touches a low voltage power source, it exhibits a high resistance state similar to that of an insulator in the low voltage region, so that electric shock can be prevented.
このような用途に有効な抵抗体としては、たと
えばFe2O3系セラミクス、SnO2系セラミクス、
ZnO系セラミクス、TiO2―ZnO系セラミクスな
ど多くのものがある。 Examples of resistors that are effective for such applications include Fe 2 O 3 ceramics, SnO 2 ceramics,
There are many types such as ZnO ceramics and TiO 2 -ZnO ceramics.
以下この発明を具体的な一実施例に従つて説明
する。 The present invention will be explained below according to a specific embodiment.
実施例
抵抗体として長さ３cm、外径３mmのTiO2―
ZnO系セラミクスからなる円柱体を準備した。こ
の円柱体を樹脂製の絶縁性の管に収容し、この絶
縁性の管の端部に導電性ゴムを介して導電性部材
を固定した。Example: TiO 2 with a length of 3 cm and an outer diameter of 3 mm as a resistor.
A cylindrical body made of ZnO ceramics was prepared. This cylindrical body was housed in an insulating tube made of resin, and a conductive member was fixed to the end of the insulating tube via conductive rubber.
このようにして得られた電撃防止素子の抵抗値
を測定したところ、印加電圧10Vで5000MΩ、印
加電圧1KVで200MΩ、印加電圧2KVで10MΩで
あつた。 When the resistance value of the electric shock prevention element thus obtained was measured, it was 5000 MΩ at an applied voltage of 10 V, 200 MΩ at an applied voltage of 1 KV, and 10 MΩ at an applied voltage of 2 KV.
一方、衣服を擦つて直接アース側に手で触れて
電撃を確認した。そののち同様に衣服を擦り、上
記した電撃防止素子を通してアース側に触れたと
ころ電撃の発生がなく、この発明の素子によつて
電撃防止に効果のあることが判明した。 On the other hand, I rubbed my clothes and touched the ground side directly to confirm the electric shock. After that, when I rubbed my clothes in the same way and touched the ground side through the above-mentioned electric shock prevention element, no electric shock occurred, indicating that the element of the present invention is effective in preventing electric shock.
以上この発明によれば、静電気による帯電電荷
の放電を抵抗体を介して行うものであり、直接電
荷を放電したときのようなシヨツクの体験を防止
することができる。特に乾燥時などにおいて発生
しやすい静電気を何らのシヨツクもなしに放出せ
しめる場合、あらかじめこの発明にかかる素子を
使用すれば、不快感もなくアース側、たとえば車
のドア、室のドアなどに接触することができる。 As described above, according to the present invention, the electric charge caused by static electricity is discharged through the resistor, and it is possible to prevent the experience of a shock that occurs when the electric charge is directly discharged. If you want to discharge static electricity, which tends to occur especially when dry, without any shock, by using the element according to the present invention in advance, it can come into contact with the ground side, such as a car door or a room door, without causing discomfort. be able to.
また、この発明を構成する抵抗体が非直線性の
電圧電流特性を有するため、低電圧領域では高抵
抗であり、静電気による放電が発生する数KV以
上の高電圧領域では抵抗値が下るという特徴を有
する。したがつて、帯電した電荷を放電するとき
には時定数が大きくなり、生体には何らのシヨツ
クも与えずに放電することができる。しかも低圧
電源に誤つて触れても絶縁抵抗が高く、感電する
という恐れのないものである。 In addition, since the resistor that constitutes this invention has non-linear voltage-current characteristics, it has high resistance in the low voltage region, and its resistance value decreases in the high voltage region of several KV or more where discharge due to static electricity occurs. has. Therefore, when discharging the charged charges, the time constant becomes large, and the discharge can be performed without giving any shock to the living body. Furthermore, even if you accidentally touch a low-voltage power source, the insulation resistance is high, so there is no risk of getting an electric shock.
第１図はこの発明にかかる電撃防止素子の一例
を示す縦断面図、第２図は電撃防止素子を構成す
る抵抗体の電圧電流特性図である。
１……抵抗体、２……絶縁性の管、３，４……
導電性弾性材、５，６……導電性部材。
FIG. 1 is a longitudinal sectional view showing an example of an electric shock prevention element according to the present invention, and FIG. 2 is a voltage-current characteristic diagram of a resistor constituting the electric shock prevention element. 1...Resistor, 2...Insulating tube, 3, 4...
Conductive elastic material, 5, 6... conductive member.
Claims (1)
在している電撃防止素子であつて、前記抵抗体が
非直線性の電圧電流特性を有するセラミクスから
なることを特徴とする電撃防止素子。1. An electric shock prevention element in which a resistor is interposed between a living body side electrode and a discharge side electrode, the resistor being made of ceramics having nonlinear voltage-current characteristics. .
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5991282A JPS58175804A (en) | 1982-04-08 | 1982-04-08 | Electric impact preventing element |
| DE19833312717 DE3312717A1 (en) | 1982-04-08 | 1983-04-08 | Protective element against electric shock |
| FR8305742A FR2524806B1 (en) | 1982-04-08 | 1983-04-08 | ELEMENT OF PREVENTION AGAINST ELECTRIC SHOCK |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5991282A JPS58175804A (en) | 1982-04-08 | 1982-04-08 | Electric impact preventing element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58175804A JPS58175804A (en) | 1983-10-15 |
| JPH0380515B2 true JPH0380515B2 (en) | 1991-12-25 |
Family
ID=13126804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5991282A Granted JPS58175804A (en) | 1982-04-08 | 1982-04-08 | Electric impact preventing element |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS58175804A (en) |
| DE (1) | DE3312717A1 (en) |
| FR (1) | FR2524806B1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4116066A1 (en) * | 1991-05-16 | 1992-11-19 | Siemens Ag | Equalising potentials of tanks without sparking - using variable resistance in series with conductor joining tanks, resistance being reduced from very high to zero |
| US5691875A (en) * | 1994-09-23 | 1997-11-25 | Lucent Technologies Inc. | Systems for preventing electrostatic accumulation |
| GB0301468D0 (en) * | 2003-01-22 | 2003-02-19 | Lander Inv S Ltd | Apparatus for use by a person for dissipating an electrostatic charge |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5526852B2 (en) * | 1976-03-09 | 1980-07-16 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3745412A (en) * | 1971-11-19 | 1973-07-10 | J Ruff | Electrostatic discharge device |
| DE2547390A1 (en) * | 1975-10-23 | 1977-05-05 | Zeiss Carl Fa | Electrostatic charge earthing wristlet - is used in MOS modules mfr. and has resistor limiting rate of discharge from operative to earth |
| DE2621672A1 (en) * | 1976-05-15 | 1977-12-01 | Karl Sterl | Miniature static discharger for personal use - has resistance between conductive grip and earthing conductor and includes hollow insulating rod |
| CH607400A5 (en) * | 1977-01-10 | 1978-12-15 | Cerberus Ag | |
| JPS5526852U (en) * | 1978-08-10 | 1980-02-21 | ||
| FR2435182A1 (en) * | 1978-09-01 | 1980-03-28 | Rocca Marc | Jewelry item energised by static electricity - uses charges to strike high voltage neon lamp in necklace, pendant or bracelet |
| US4283749A (en) * | 1979-09-25 | 1981-08-11 | The United States Of America As Represented By The Secretary Of The Army | Apparatus for the controlled discharge of a charged object |
-
1982
- 1982-04-08 JP JP5991282A patent/JPS58175804A/en active Granted
-
1983
- 1983-04-08 FR FR8305742A patent/FR2524806B1/en not_active Expired
- 1983-04-08 DE DE19833312717 patent/DE3312717A1/en not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5526852B2 (en) * | 1976-03-09 | 1980-07-16 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3312717A1 (en) | 1983-11-10 |
| FR2524806A1 (en) | 1983-10-14 |
| FR2524806B1 (en) | 1986-10-10 |
| JPS58175804A (en) | 1983-10-15 |
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