JP2552198Y2 - Probe for resistance measurement - Google Patents
Probe for resistance measurementInfo
- Publication number
- JP2552198Y2 JP2552198Y2 JP3084191U JP3084191U JP2552198Y2 JP 2552198 Y2 JP2552198 Y2 JP 2552198Y2 JP 3084191 U JP3084191 U JP 3084191U JP 3084191 U JP3084191 U JP 3084191U JP 2552198 Y2 JP2552198 Y2 JP 2552198Y2
- Authority
- JP
- Japan
- Prior art keywords
- contact
- conductors
- case
- contacts
- contact conductors
- 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 - Fee Related
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
- G11B5/1871—Shaping or contouring of the transducing or guiding surface
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/1272—Assembling or shaping of elements
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Measuring Leads Or Probes (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この考案は例えば印刷配線基板に
おけるスルーホールを利用してその配線基板における配
線の電気抵抗を、電流を流して、発生電圧を検出するこ
とにより測定する４端子抵抗測定に用いられる抵抗測定
用プローブに関する。BACKGROUND OF THE INVENTION The present invention relates to a four-terminal resistance measurement in which a through-hole in a printed wiring board is used to measure the electric resistance of a wiring in the wiring board by detecting a generated voltage by passing a current. The present invention relates to a resistance measurement probe used.
【０００２】[0002]
【従来の技術】この種の抵抗測定用プローブは実公昭４
８−４２２１０号公報に提案されている。このプローブ
は図３に示すように、筒状ケース１１内にその一端から
第１、第２接触導体、１２，１３が出入自在に、つまり
ケース１１の軸心と平行に移動自在に保持されている。
第１、第２接触導体１２，１３はそれぞれ外部に突出し
た先端部が細長い円錐状の一半部と他半部とを構成し、
つまり円錐状体をその軸心を含む面で２分割した構成
で、その互いに対接された内面には絶縁フィルム１４，
１５が被着されて、第１、第２接触導体１２，１３は互
いに絶縁され、かつ互いに軸心と平行に相対的に移動可
能とされている。2. Description of the Related Art This type of resistance measuring probe is disclosed in
8-42210. As shown in FIG. 3, this probe has first and second contact conductors 12 and 13 held in a cylindrical case 11 from one end thereof so as to be able to move in and out, that is, to be movable parallel to the axis of the case 11. I have.
Each of the first and second contact conductors 12 and 13 has one end protruding to the outside and one half of an elongated conical shape, and the other half.
In other words, the conical body is divided into two parts by a plane including its axis, and the inner surfaces that are in contact with each other are insulated by the insulating film 14,
The first and second contact conductors 12 and 13 are insulated from each other and relatively movable parallel to the axis with each other.
【０００３】第１、第２接触導体１２，１３の内端面と
対向してケース１１内に固定板１６が固定され、固定板
１６と第１、第２接触導体１２，１３との間にコイルば
ね１７，１８がそれぞれ介在され、第１、第２接触導体
１２，１３は外側へ突出するように偏倚されている。第
１、第２接触導体１２，１３の内端部の両者により構成
される円柱状部の外周につば１９，２１がそれぞれ一体
に形成され、つば１９，２１がケース１１の内面に形成
された軸心方向の段部２２と係合して第１、第２接触導
体１２，１３の抜け止めとされている。A fixed plate 16 is fixed in the case 11 so as to face the inner end surfaces of the first and second contact conductors 12 and 13, and a coil is provided between the fixed plate 16 and the first and second contact conductors 12 and 13. Springs 17 and 18 are interposed, respectively, and the first and second contact conductors 12 and 13 are biased so as to protrude outward. Collars 19 and 21 are integrally formed on the outer periphery of a columnar portion formed by both the inner ends of the first and second contact conductors 12 and 13, and the collars 19 and 21 are formed on the inner surface of the case 11. The first and second contact conductors 12 and 13 are prevented from coming off by engaging with the step portion 22 in the axial direction.
【０００４】第１、第２接触導体１２，１３の内端面よ
り一体に端子部２３，２４が軸心と平行に突出され、こ
れら端子部２３，２４は固定板１６に形成された貫通孔
２５，２６にゆるく挿通され、その突出した端子部２
３，２４に電流供給用導線２７、電圧測定用導線２８の
各一端がそれぞれ半田付けされている。これら電流供給
用導線２７及び電圧測定用導線２８は１本のコードとし
てケース１１の他端から外部に導出される。[0004] Terminal portions 23 and 24 are integrally protruded from the inner end surfaces of the first and second contact conductors 12 and 13 in parallel with the axis, and these terminal portions 23 and 24 are formed in through holes 25 formed in the fixing plate 16. , 26 and loosely protruding terminal portions 2
One ends of a current supply lead 27 and a voltage measurement lead 28 are soldered to 3 and 24, respectively. The current supply lead 27 and the voltage measurement lead 28 are led out from the other end of the case 11 as one cord.
【０００５】この第１、第２接触導体１２，１３の先端
を印刷配線基板のスルーホール内に嵌合させ、そのスル
ーホールと接続されている他の部分に２つの接触子を接
触させ、その二つの間に電流を流し、その間の発生電圧
を測定してこれら二点間の抵抗値を測定する。この場合
プローブの先端が円錐状であり、これがスルーホール内
に嵌合されるため、安定にその位置に保持させることが
でき、多少押し込むようにすることにより弾性的にスル
ーホールと接触し、電気的に良好に接触する。The ends of the first and second contact conductors 12 and 13 are fitted into through holes of a printed wiring board, and two contacts are brought into contact with other portions connected to the through holes. A current is passed between the two, and the voltage generated between them is measured to measure the resistance between these two points. In this case, the tip of the probe has a conical shape and is fitted into the through-hole, so that it can be stably held in that position. Good contact.
【０００６】[0006]
【考案が解決しようとする課題】第１、第２接触導体１
２，１３がケース１１に対し軸心と平行に摺動する際に
これら接触導体１２，１３と導線２７，２８との接続半
田にストレスが加わり、接触導体１２，１３の移動が繰
り返されると接続半田部で断線するおそれがあった。SUMMARY OF THE INVENTION First and second contact conductors 1
When the contact conductors 2 and 13 slide in parallel with the axis with respect to the case 11, stress is applied to the solder for connecting the contact conductors 12 and 13 and the conductors 27 and 28, and the connection is repeated when the movement of the contact conductors 12 and 13 is repeated. There was a risk of disconnection at the solder part.
【０００７】印刷配線基板のスルーホールの孔径が異な
るものに応じて第１、第２接触導体１２，１３を交換し
たい場合があり、また第１、第２接触導体１２，１３の
先端部が細いため、なにかに引っ掛けたりして曲げてし
まうことがあり、その場合も交換を必要とする。しかし
第１、第２接触導体１２，１３と導線２７，２８とを半
田付けしているため、接触導体１２，１３の交換がやり
にくい欠点があった。In some cases, the first and second contact conductors 12 and 13 may need to be replaced depending on the through-holes of the printed wiring board having different diameters, and the tips of the first and second contact conductors 12 and 13 are thin. Therefore, it may be bent by being hooked on something, and in that case, replacement is required. However, since the first and second contact conductors 12 and 13 and the conductors 27 and 28 are soldered, there is a disadvantage that it is difficult to replace the contact conductors 12 and 13.
【０００８】[0008]
【課題を解決するための手段】この考案によればケース
内において、第１、第２接触導体の内端面と対向して第
１、第２弾性接触コンタクトが取付けられる。第１、第
２弾性接触コンタクトはそれぞれ可動接触子を有し、そ
の可動接触子がばねにより第１、第２接触導体の端面に
弾性的に接触される。この第１、第２弾性接触コンタク
トの固定部に対し、電流供給用導線及び電圧測定用導線
がそれぞれ接続される。According to the invention, first and second resilient contact contacts are mounted in the case so as to face the inner end surfaces of the first and second contact conductors. Each of the first and second elastic contact contacts has a movable contact, and the movable contact is elastically contacted by springs with end faces of the first and second contact conductors. A current supply lead and a voltage measurement lead are connected to the fixed portions of the first and second elastic contact contacts, respectively.
【０００９】[0009]
【実施例】図１にこの考案の実施例を示し、図３と対応
する部分に同一符号を付けてある。この考案においては
固定板１６に形成された貫通孔２５，２６にそれぞれ第
１、第２弾性接触コンタクト３１，３２が嵌合固定され
る。第１、第２弾性接触コンタクト３１，３２はそれぞ
れホゴピンと称せられ、ケース１１の軸心と平行した金
属製筒状体３３内に可動接触子３４が軸心方向に移動自
在に保持され、その可動接触子３４は、筒状体３３内の
コイルばね３５により接触導体１４，１５側に偏倚され
る。従って第１、第２弾性接触コンタクト３１，３２の
各可動接触子３４は第１、第２接触導体１２，１３の内
端面と弾性的に接触する。この例では固定板１６に第
１、第２接触導体１２，１３の軸心方向の移動に対する
案内も兼ねさせた場合で、第１、第２接触導体１２，１
３の内端面からボス３６，３６が一体に突出され、ボス
３６，３６が貫通孔２５，２６内にゆるく嵌合される。FIG. 1 shows an embodiment of the present invention, in which parts corresponding to those in FIG. 3 are denoted by the same reference numerals. In the present invention, first and second elastic contact contacts 31, 32 are fitted and fixed in through holes 25, 26 formed in the fixing plate 16, respectively. The first and second resilient contact contacts 31 and 32 are respectively referred to as hogo pins, and a movable contact 34 is held in a metal cylindrical body 33 parallel to the axis of the case 11 so as to be movable in the axial direction. The movable contact 34 is biased toward the contact conductors 14 and 15 by a coil spring 35 in the tubular body 33. Therefore, each movable contact 34 of the first and second elastic contact contacts 31 and 32 elastically contacts the inner end surfaces of the first and second contact conductors 12 and 13. In this example, the fixed plate 16 also serves as a guide for the movement of the first and second contact conductors 12, 13 in the axial direction, and the first and second contact conductors 12, 1
The bosses 36, 36 are integrally protruded from the inner end surface of 3, and the bosses 36, 36 are loosely fitted into the through holes 25, 26.
【００１０】第１、第２弾性接触コンタクト３１，３２
の固定部、つまり筒状体３３の閉塞端板に、一体に突起
３７が突出され、これら突起３７に電流供給用導線２
７、電圧測定用導線２８の各一端が半田付けされる。ケ
ース１１は先端部１１ａとコード導出部１１ｂとに軸心
方向において分割構成され、これら先端部１１ａとコー
ド導出部１１ｂとは後者の端部が前者の端部内に挿入さ
れると共にその互いに対向する内外周面でねじ結合され
る。コード導出部１１ｂの端面と、先端部１１ａの内周
面の段部３８との間に固定板１６が挟まれてケース１１
内に固定板１６が固定される。First and second elastic contact contacts 31, 32
The projections 37 are integrally formed on the fixing portion of the cylindrical body 33, that is, on the closed end plate of the cylindrical body 33.
7. One end of each voltage measuring lead 28 is soldered. The case 11 is axially divided into a tip part 11a and a cord lead-out part 11b, and the tip part 11a and the cord lead-out part 11b are opposed to each other while the latter end is inserted into the former end. The inner and outer peripheral surfaces are screwed together. The fixing plate 16 is sandwiched between the end surface of the cord deriving portion 11b and the step portion 38 on the inner peripheral surface of the tip portion 11a.
The fixing plate 16 is fixed therein.
【００１１】この構成によれば、従来と同様にスルーホ
ールに良好に電気的に接触させることができる。しかも
第１、第２接触導体１２，１３と第１、第２弾性接触コ
ンタクト３１，３２とは互いに連結固定されていないた
め、ケース１１の先端部１１ａとコード導出部１１ｂと
を互いに外すことにより、第１、第２接触導体１２，１
３を簡単に外し、他の接触導体と交換することができ
る。また第１、第２接触導体１２，１３をケース１１に
対し繰り返し移動させても、第１、第２弾性接触コンタ
クト１２，１３の可動接触子３４が筒状体３３に対して
出入りし、これら間の良好な電気的接触が保持され、か
つ、突起３７と導線２７，２８とを接続している半田が
ストレスを受けることはなく、この接続が劣化したり、
切断したりするおそれがない。According to this configuration, it is possible to make good electrical contact with the through hole as in the conventional case. In addition, since the first and second contact conductors 12 and 13 and the first and second elastic contact contacts 31 and 32 are not connected and fixed to each other, the distal end portion 11a of the case 11 and the cord lead-out portion 11b are detached from each other. , First and second contact conductors 12, 1
3 can be easily removed and replaced with another contact conductor. Even if the first and second contact conductors 12 and 13 are repeatedly moved with respect to the case 11, the movable contacts 34 of the first and second elastic contact contacts 12 and 13 move in and out of the tubular body 33, and Good electrical contact between them is maintained, and the solder connecting the projections 37 and the conductors 27 and 28 is not stressed, and this connection is deteriorated,
There is no risk of cutting.
【００１２】図２に図１と対応する部分に同一符号を付
けて示すように、ケース１１の先端部１１ａを更に前部
１１ａ1 と後部１１ａ2 とに２分割し、これら前部１１
ａ1と後部１１ａ2 とをねじ結合し、後部１１ａ2 の段
部３８とコード導出部１１ｂの端面とにより固定板１６
を保持するようにしてもよい。この場合は第１、第２接
触導体１２，１３を交換する場合に、先端部１１ａの前
部１１ａ1 のみを外せばよく、固定板１６がケース１１
に固定されたまゝであり、新たな第１、第２接触導体１
２，１３の取り付けが容易となる。[0012] Figure 1 and corresponding parts in FIG. 2 as indicated with the same reference numerals, further divided into the front 11a 1 and the rear 11a 2 the tip 11a of the case 11, these front 11
a 1 and the rear part 11a 2 are screwed together, and the fixing plate 16 is fixed by the step part 38 of the rear part 11a 2 and the end face of the cord lead-out part 11b.
May be held. In this case first, when replacing the second contact conductors 12 and 13 may by removing only the front part 11a 1 of the tip portion 11a, the fixing plate 16 Case 11
And the first and second contact conductors 1
Attachment of 2 and 13 becomes easy.
【００１３】図１、図２において、第１、第２弾性接触
コンタクト３１，３２は小さいものでそのばね３５も小
さいものとなるため、ばね１７，１８を設けた方がよい
が、ばね３５でばね１７，１８の作用も兼ねさせてもよ
い。In FIGS. 1 and 2, the first and second elastic contact contacts 31 and 32 are small and their springs 35 are also small. Therefore, it is better to provide the springs 17 and 18; The functions of the springs 17 and 18 may be combined.
【００１４】[0014]
【考案の効果】以上述べたようにこの考案によれば、第
１、第２接触導体１２，１３と導線２７，２８とを直接
連結することなく、これら間に第１、第２弾性接触コン
クタト３１，３２を介在させ、第１、第２接触導体１
２，１３の移動が第１、第２弾性接触コンタクト３１，
３２で吸収され、第１、第２弾性接触コンタクト３１，
３２と導線２７，２８との半田付けに影響を与えないた
め、この半田付けの接続部が劣化したり、切断したりす
るおそれがない。As described above, according to this invention, the first and second contact conductors 12, 13 and the conductors 27, 28 are not directly connected to each other, but the first and second elastic contact contacts are provided therebetween. 31 and 32, the first and second contact conductors 1
The movement of the first and second elastic contact contacts 31,
32, the first and second elastic contact contacts 31,
Since there is no effect on the soldering between the conductor 32 and the conductive wires 27 and 28, there is no danger that the connection portion for this soldering will be deteriorated or cut.
【００１５】第１、第２接触導体１２，１３と第１、第
２弾性接触コンタクト３１，３２とは互いに弾性的に接
触し、連結されていないため、第１、第２接触導体１
２，１３の交換が容易である。Since the first and second contact conductors 12 and 13 and the first and second elastic contact contacts 31 and 32 are in elastic contact with each other and are not connected, the first and second contact conductors 1 and 13 are not connected.
Exchange of 2 and 13 is easy.
【図１】この考案の実施例を示す上部を切断した断面
図。FIG. 1 is a cross-sectional view showing an embodiment of the present invention, in which an upper portion is cut.
【図２】この考案の他の実施例を示す上部を切断した断
面図。FIG. 2 is a cross-sectional view of another embodiment of the present invention, in which an upper portion is cut.
【図３】従来の抵抗測定用プローブを示す上部を切断し
た断面図。FIG. 3 is a cross-sectional view of a conventional resistance measurement probe, in which an upper portion is cut.
Claims (1)
入自在にそのケースに保持され、先端部が円錐状の一半
部と他半部とを構成し、互いに絶縁された第１、第２接
触導体と、これら第１、第２接触導体の内端面とそれぞ
れ弾性的に接触した可動接触子及びその可動接触子をそ
れぞれ第１、第２接触導体側に偏倚するばねをもち、上
記ケース内に固定された第１、第２弾性接触コンタクト
と、これら第１、第２弾性接触コンタクトの固定部にそ
れぞれ接続された電流供給用導線及び電圧測定用導線
と、を具備する抵抗測定用プローブ。1. A cylindrical case and first and second portions which are held by the case so as to be able to enter and exit from one end of the case, and have a tip portion forming one half portion and the other half portion of a conical shape and insulated from each other. The case includes a contact conductor, a movable contact resiliently in contact with inner end surfaces of the first and second contact conductors, and a spring for biasing the movable contact toward the first and second contact conductors. A resistance measurement probe comprising: first and second elastic contact contacts fixed to the first and second terminals; and a current supply conductor and a voltage measurement conductor respectively connected to fixing portions of the first and second elastic contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3084191U JP2552198Y2 (en) | 1991-05-02 | 1991-05-02 | Probe for resistance measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3084191U JP2552198Y2 (en) | 1991-05-02 | 1991-05-02 | Probe for resistance measurement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04126176U JPH04126176U (en) | 1992-11-17 |
| JP2552198Y2 true JP2552198Y2 (en) | 1997-10-27 |
Family
ID=12314924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3084191U Expired - Fee Related JP2552198Y2 (en) | 1991-05-02 | 1991-05-02 | Probe for resistance measurement |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2552198Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5893397B2 (en) * | 2011-12-28 | 2016-03-23 | 日置電機株式会社 | Probe unit and inspection device |
-
1991
- 1991-05-02 JP JP3084191U patent/JP2552198Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04126176U (en) | 1992-11-17 |
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