JP2506022Y2 - Variable resistor - Google Patents
Variable resistorInfo
- Publication number
- JP2506022Y2 JP2506022Y2 JP10887090U JP10887090U JP2506022Y2 JP 2506022 Y2 JP2506022 Y2 JP 2506022Y2 JP 10887090 U JP10887090 U JP 10887090U JP 10887090 U JP10887090 U JP 10887090U JP 2506022 Y2 JP2506022 Y2 JP 2506022Y2
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- lead
- case
- bank
- insulating substrate
- 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
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- Details Of Resistors (AREA)
- Adjustable Resistors (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 この考案は回転形の可変抵抗器、とくにその端子導出
部の構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a rotary variable resistor, and more particularly to a structure of a terminal lead-out portion thereof.
第６図および第７図に示す従来の可変抵抗器はカップ
状のケース11を備える。ケース11は合成樹脂等の絶縁性
材料でなり、その軸心10の位置にベアリング13を介して
回転軸14が内外に突出して嵌合している。ケース11内で
回転軸14の一端14aには板状の回転体15が取付けられて
いる。回転体15は絶縁性材料でなり、回転体15には摺動
子16が取付けられている。摺動子16は導電性材料で一体
的に構成されていて、２つの接触子16a,16bを有し、こ
れらの接触子16a,16bをケース11の開放端11a側に突出さ
せた状態で回転体15に取付けられている。また、一方の
接触子16aは他方の接触子16bよりも径方向内側に位置し
ている。The conventional variable resistor shown in FIGS. 6 and 7 includes a cup-shaped case 11. The case 11 is made of an insulating material such as synthetic resin, and the rotary shaft 14 is fitted in the position of the shaft center 10 via a bearing 13 so as to project inward and outward. A plate-shaped rotating body 15 is attached to one end 14a of the rotating shaft 14 in the case 11. The rotating body 15 is made of an insulating material, and a slider 16 is attached to the rotating body 15. The slider 16 is integrally formed of a conductive material and has two contacts 16a and 16b, which rotate with the contacts 16a and 16b protruding toward the open end 11a of the case 11. Mounted on body 15. Further, one contactor 16a is located radially inward of the other contactor 16b.
回転軸14の外端14bに、半径方向に突出したレバー17
が取付けられ、回転体15とレバー17とにより、回転軸14
の軸心10方向のケース11からの脱落を防止される。必要
に応じて軸心10方向のガタ防止のために回転体15および
ケース11間にワッシャ19aおよびウェーブワッシャ19c
が、レバー17およびケース11間にワッシャ19bが、それ
ぞれ介在する。また内部を気密にするために回転軸14の
周面とケース11の内周面との間に合成ゴムのＯリング20
が介在する。このようにして、レバー17を操作して回転
軸14を回転させた場合に回転体15が軸心10のまわりに回
転し、これに従って摺動子16が回転し、摺動子16の接触
子16a,16bが径の異なる２つの円弧を描いて軸心10の回
りに回転するようにされる。At the outer end 14b of the rotary shaft 14, a lever 17 protruding in the radial direction
Is attached, and the rotary shaft 14 is
Is prevented from falling off from the case 11 in the direction of the axis 10 of. If necessary, a washer 19a and a wave washer 19c are provided between the rotor 15 and the case 11 to prevent play in the direction of the shaft center 10.
However, washers 19b are interposed between the lever 17 and the case 11, respectively. In order to make the inside airtight, an O-ring 20 made of synthetic rubber is provided between the peripheral surface of the rotating shaft 14 and the inner peripheral surface of the case 11.
Intervenes. In this way, when the lever 17 is operated to rotate the rotary shaft 14, the rotary body 15 rotates around the shaft center 10, and the slider 16 rotates accordingly, and the contactor of the slider 16 rotates. 16a and 16b are drawn around two arcs having different diameters so as to rotate about the axis 10.
ケース11の開放端11a側において回転体15と対向して
絶縁基板18が配設されている。絶縁基板18の回転体15と
の対向面に、軸心10を中心として円弧状の集電体21およ
び抵抗体22が同心的に形成されている。これら集電体21
および抵抗体22にそれぞれ摺動子16の接触子16a,16bが
弾性的に接触している。An insulating substrate 18 is arranged on the open end 11a side of the case 11 so as to face the rotating body 15. On the surface of the insulating substrate 18 facing the rotating body 15, arc-shaped current collectors 21 and resistors 22 are concentrically formed around the axis 10. These current collectors 21
The contacts 16a and 16b of the slider 16 are elastically in contact with the resistor 22 and the resistor 22, respectively.
集電体21の一端に接続された端子23a、抵抗体22の両
端にそれぞれ接続された端子23b,23cが、それぞれ絶縁
基板18にその一側部で取付けられる。各端子23a,23b,23
cの一端側は鳩目部30であり、これにより絶縁基板18に
固定され、他端側は絶縁基板の外面18bから垂直に立上
る接続部24とされている。A terminal 23a connected to one end of the current collector 21 and terminals 23b and 23c connected to both ends of the resistor 22 are attached to the insulating substrate 18 at one side thereof. Each terminal 23a, 23b, 23
One end side of c is an eyelet portion 30, which is fixed to the insulating substrate 18, and the other end side is a connecting portion 24 which rises vertically from the outer surface 18b of the insulating substrate.
絶縁基板18の外面18bには絶縁性材料からなるカバー2
5が重ねられ、カバー25によりケース11は閉じられる。
カバー25には、内外面を貫通する孔26,26,26が形成さ
れ、各孔26から各端子23a,23b,23cの接続部24,24,24が
外側に突出している。各接続部24には各々孔29が形成さ
れ、各孔29にリード端子27,27,27の各一端が挿通され
て、各リード端子27は半田28により各接続部24に接続さ
れる。これらのリード端子27,27,27は並んだ状態でカバ
ー25の外面に沿って導出され、カバー25の外面とこれと
接近してカバー25に取付けられた覆板31との間をリード
端子27,27,27が通されて、これらリード端子27の配列状
態が保持され、かつ端子23とリード端子27との接続部が
保護される。The outer surface 18b of the insulating substrate 18 has a cover 2 made of an insulating material.
5, the case 11 is closed by the cover 25.
Holes 26, 26, 26 penetrating the inner and outer surfaces are formed in the cover 25, and the connection portions 24, 24, 24 of the terminals 23a, 23b, 23c project outward from the holes 26, respectively. A hole 29 is formed in each connecting portion 24, one end of each lead terminal 27, 27, 27 is inserted into each hole 29, and each lead terminal 27 is connected to each connecting portion 24 by solder 28. These lead terminals 27, 27, 27 are led out along the outer surface of the cover 25 in a lined state, and the lead terminals 27 are provided between the outer surface of the cover 25 and the cover plate 31 attached to the cover 25 in close proximity thereto. , 27, 27 are passed through, the arrangement state of the lead terminals 27 is maintained, and the connecting portion between the terminals 23 and the lead terminals 27 is protected.
カバー25の外面よりケース11の開放端11aがわずか突
出しており、カバー25の外面側に、絶縁性接着剤32が充
填され、リード端子27と端子23との接続部、及びリード
端子27の端部が接着剤32内に埋込まれる。これによりリ
ード端子27の接続部を外部から絶縁し、かつケース内を
気密として、湿気等の侵入を防ぐとともに、リード端子
27の固定が引張りに対し十分保護される。The open end 11a of the case 11 slightly projects from the outer surface of the cover 25, the outer surface side of the cover 25 is filled with an insulating adhesive 32, the connecting portion between the lead terminal 27 and the terminal 23, and the end of the lead terminal 27. The part is embedded in the adhesive 32. This insulates the connection part of the lead terminal 27 from the outside and keeps the inside of the case airtight to prevent ingress of moisture and the like,
27 fixings are well protected against tension.
このように構成された従来の可変抵抗器においては、
リード端子27は軸方向における一端側で取付けられ、し
かもリード端子27接続部には極めて大きな引張り強度が
要求されるため、リード端子を接着剤32内に十分埋込む
必要があり、可変抵抗器の軸方向の長さが長くなる。In the conventional variable resistor configured in this way,
Since the lead terminal 27 is attached at one end side in the axial direction, and the connecting portion of the lead terminal 27 requires extremely large tensile strength, it is necessary to sufficiently embed the lead terminal in the adhesive 32. The axial length becomes longer.
また、絶縁性接着剤32が接続端子23a,23b,23cを伝わ
って絶縁基板18の内面に流れて、集電体21や抵抗体22に
付着・固化した場合には、これら集電体21や抵抗体22と
摺動子16との接続が不良になる恐れがある。In addition, when the insulating adhesive 32 flows through the connection terminals 23a, 23b, and 23c to the inner surface of the insulating substrate 18 and adheres and solidifies to the current collector 21 or the resistor 22, the current collector 21 or The connection between the resistor 22 and the slider 16 may be defective.
この考案の目的は、上記した従来の可変抵抗器の欠点
を解消して、端子接続部を保護し内部の気密性を得るた
めの絶縁性接着剤が端子を伝わって絶縁基板の内面の抵
抗体や集電体に流れることを防ぎ、かつ軸方向の高さ寸
法を小さくすることが可能な可変抵抗器を提供すること
にある。The purpose of the present invention is to eliminate the above-mentioned drawbacks of the conventional variable resistor, and an insulating adhesive for protecting the terminal connection portion and obtaining internal airtightness is transmitted through the terminal and the resistor on the inner surface of the insulating substrate. Another object of the present invention is to provide a variable resistor which can be prevented from flowing into a current collector and a current collector and whose axial height dimension can be reduced.
この考案によれば、ケース内にその開放面から見て土
手を介して回転体収容部と端子導出部が並んで設けら
れ、前記回転体収容部に、前記開放面側に摺動子が取付
けられ、軸心が前記開放面とほぼ垂直な回転体が回動自
在に収容され、抵抗体および集電体が形成された絶縁基
板で前記回転体収容部の開放面が閉ざされてその抵抗体
および集電体が前記摺動子と摺動接触させられ、前記抵
抗体の端子および前記集電体の端子が前記端子導出部に
延長挿入され、前記絶縁基板の回転体収容部の反対側に
おいてカバーが前記ケースに取付けられ、そのカバーと
一体に突出した端子押えと前記土手とで前記端子が挟持
され、前記土手の頂面に溝が形成され、前記端子間にお
いて前記端子押えから一体に突出した突起が前記溝に挿
入され、前記端子導出部内で前記端子にリード端子が接
続されて前記ケースから導出され、前記端子導出部に絶
縁性接着剤が充填される。According to this invention, the rotor accommodating portion and the terminal lead-out portion are provided side by side in the case through the bank as viewed from the open surface, and the slider is attached to the rotor accommodating portion on the open surface side. A rotary body whose axis is substantially perpendicular to the open surface is rotatably housed, and the open surface of the rotary body housing part is closed by an insulating substrate on which a resistor and a current collector are formed. And the current collector is brought into sliding contact with the slider, and the terminal of the resistor and the terminal of the current collector are extended and inserted into the terminal lead-out portion, and on the opposite side of the insulating substrate from the rotor accommodating portion. A cover is attached to the case, the terminal is clamped by the terminal retainer projecting integrally with the cover and the bank, a groove is formed on the top surface of the bank, and the terminal projecting integrally from the terminal retainer between the terminals. The protrusion is inserted into the groove and the terminal is led out. Wherein the with the lead terminal is connected to the terminal at an internal derived from the case, an insulating adhesive in the terminal lead portion is filled.
土手と端子押えとにより端子が挟まれ、かつ隣接端子
間の間隙は突起で塞がれているので、端子導出部に充填
した絶縁性接着剤は、回転体収容部へ流れ入り難く、こ
れらの隙間に接着剤が一部侵入しても土手に形成された
溝に入り、この溝を越えることがなく、従って絶縁基板
の内面に接着剤が達する恐れはない。Since the terminals are sandwiched by the bank and the terminal retainer, and the gap between the adjacent terminals is closed by the protrusions, the insulating adhesive filled in the terminal lead-out portions is hard to flow into the rotor accommodating portion, and these Even if the adhesive partially enters the gap, it does not enter the groove formed on the bank and does not cross the groove, and therefore the adhesive does not reach the inner surface of the insulating substrate.
第１図にこの考案による可変抵抗器の実施例を示し、
第２図及び第３図にその構成部分の分解図を示す。これ
らの図で、第６図及び第７図と対応する部分には、同一
番号を付けてある。可変抵抗器はカップ状のケース11を
備える。ケース11は合成樹脂等の絶縁性材料でなり、ケ
ース11内には、開放面から見て土手41によって区画され
た、回転体収容部42と端子導出部43が設けられている。FIG. 1 shows an embodiment of a variable resistor according to the present invention,
2 and 3 show exploded views of the components. In these figures, parts corresponding to those in FIGS. 6 and 7 are given the same reference numerals. The variable resistor includes a cup-shaped case 11. The case 11 is made of an insulating material such as a synthetic resin, and the case 11 is provided with a rotor accommodating portion 42 and a terminal lead-out portion 43 which are partitioned by the bank 41 when viewed from the open surface.
回転体収容部42はケース開放面と反対側に回転軸導出
孔が形成され、その回転軸導出孔内にベアリング13を介
して回転軸14が嵌合され、回転体15が回転体収容部42に
収容されている。この例ではケース11の内周面は軸心10
を中心とする円筒面とされ、その軸心10の位置に回転軸
14が位置し、ケース11内は大部分が回転体収容部42で占
められ、端子導出部43はケース開放面から見て３日月状
とされている。つまり回転軸14の内端14aには従来と同
様に回転体15が取付けられるが、図に示していないスト
ッパ機構により回転体15の回転角度範囲が制限されてお
り、回転体15に取付けた摺動子16が達しない角度範囲側
を利用して、端子導出部43が設けられた場合である。こ
のため回転体15が土手41により邪魔されることなく回転
でき、さらに回転体15は第２図に示すようにある角度範
囲にわたって半径方向の長さが小さくされてある。The rotating body accommodating portion 42 has a rotating shaft lead-out hole formed on the side opposite to the case open surface, the rotating shaft 14 is fitted in the rotating shaft lead-out hole via the bearing 13, and the rotating body 15 has a rotating body accommodating portion 42. It is housed in. In this example, the inner peripheral surface of case 11 has an axial center of 10
Is a cylindrical surface centered on the
14 is located, the inside of the case 11 is mostly occupied by the rotating body accommodating portion 42, and the terminal lead-out portion 43 has a crescent shape when viewed from the open surface of the case. That is, the rotating body 15 is attached to the inner end 14a of the rotating shaft 14 as in the conventional case, but the rotation angle range of the rotating body 15 is limited by a stopper mechanism (not shown), and the sliding body mounted on the rotating body 15 is restricted. This is a case where the terminal lead-out portion 43 is provided by utilizing the angle range side that the pendulum 16 does not reach. Therefore, the rotating body 15 can be rotated without being hindered by the bank 41, and the rotating body 15 has a small radial length over a certain angle range as shown in FIG.
ケース11の開放面側において回転体15と対向して絶縁
基板18が配設されて絶縁基板18により回転軸収容部42の
開放面がほぼ塞がれる。絶縁基板18は端子導出部43内に
達しないように円板の一部周縁部が切断された形状とさ
れている。An insulating substrate 18 is disposed on the open surface side of the case 11 so as to face the rotating body 15, and the open surface of the rotary shaft accommodating portion 42 is substantially closed by the insulating substrate 18. The insulating substrate 18 has a shape in which a part of the disc is cut off so that it does not reach the terminal lead-out portion 43.
回転体収容部42の内周面の土手41以外の部分に軸方向
の段部39が形成され、段部39に絶縁基板18の内面の周縁
部が対接する。図は段部39が土手41の頂面41aよりもケ
ース開放面側に位置している場合である。段部39の外周
に沿って接着剤溜め用溝40が形成されている。A step portion 39 in the axial direction is formed on a portion of the inner peripheral surface of the rotating body accommodating portion 42 other than the bank 41, and a peripheral portion of the inner surface of the insulating substrate 18 is in contact with the step portion 39. The figure shows the case where the step portion 39 is located closer to the case opening surface side than the top surface 41a of the bank 41. An adhesive reservoir groove 40 is formed along the outer periphery of the step 39.
端子23a,23b,23cは絶縁基板18の直線状縁に沿って配
列して取付けられ、これら端子23a,23b,23cは端子導出
部43内に導かれている。そのような端子23a,23b,23cの
形状として、この実施例では、絶縁基板18の内面に沿う
部分44から絶縁基板18の直線状縁付近でほぼ垂直に折れ
曲がってカップ状のケース11の底面方向に向かい土手41
の頂面41aの位置まで延長された延長部45、及び延長部4
5の延長先端から再び垂直に折れ曲がって土手41の頂面4
1aを越えて端子導出部43内に延出する接続部46が構成さ
れている。The terminals 23a, 23b, 23c are arranged and attached along a straight edge of the insulating substrate 18, and these terminals 23a, 23b, 23c are guided into the terminal lead-out portion 43. As such a shape of the terminals 23a, 23b, 23c, in this embodiment, the portion 44 along the inner surface of the insulating substrate 18 is bent almost vertically in the vicinity of the linear edge of the insulating substrate 18 in the bottom direction of the cup-shaped case 11. Heading to bank 41
Extension portion 45 extended to the position of the top surface 41a and extension portion 4
Bend again vertically from the extension tip of 5 and top surface 4 of bank 41
A connecting portion 46 that extends beyond 1a into the terminal lead-out portion 43 is configured.
接続部46にはリード端子27との接続用の孔29が形成さ
れている。A hole 29 for connecting with the lead terminal 27 is formed in the connecting portion 46.
絶縁基板18に関して、回転体収容部42と反対の側、即
ちケース開放端側において、カバー25がケース11に取付
けられている。カバーは絶縁性材料からなり回転体収容
部42を閉じており、絶縁基板18とほぼ同じ形と大きさを
もち絶縁基板18の外面18aに重ねられた天板部47と、天
板部47の直線状端から土手41の頂面41aに向かって垂下
する端子押え部48とからなる。With respect to the insulating substrate 18, the cover 25 is attached to the case 11 on the side opposite to the rotating body housing portion 42, that is, on the case open end side. The cover is made of an insulative material and closes the rotating body accommodating portion 42. The cover has a shape and size substantially the same as those of the insulating substrate 18, and the top plate portion 47 overlaid on the outer surface 18a of the insulating substrate 18 and the top plate portion 47. The terminal pressing part (48) hangs down from the straight end toward the top surface (41a) of the bank (41).
端子押え部48の垂下端面48aから更に垂下して４つの
隙間防止突起51が垂下端面48aの長手方向50に配列形成
されている。４つの隙間防止突起51のうち、中央の２つ
の方向50の幅は端子23a,23bの各接続部46間、端子23b,2
3cの各接続部46間の各間隔にほぼ等しくされ、また、隙
間防止突起51の垂下長さは接続部46の厚みより大きく、
前述の天板部47が絶縁基板18の外面に重ねられた状態で
は、第５図に示すように各端子の接続部46,46,46が各々
隙間防止突起51,51,51,51の各間に嵌り込み、相互間の
方向50における接続部46間の隙間が塞がれる。但し、隙
間防止突起51は垂下方向については接続部46よりも突出
している。Further, four gap preventing projections 51 are formed in an array in the longitudinal direction 50 of the drooping lower end surface 48a so as to further hang down from the drooping lower end surface 48a of the terminal pressing portion 48. Of the four gap preventing protrusions 51, the widths in the two central directions 50 are between the connecting portions 46 of the terminals 23a and 23b and between the terminals 23b and 2
The distance between the connecting portions 46 of 3c is made substantially equal to each other, and the hanging length of the gap preventing projection 51 is larger than the thickness of the connecting portion 46.
In the state where the top plate portion 47 is overlaid on the outer surface of the insulating substrate 18, the connecting portions 46, 46, 46 of the respective terminals are respectively formed with the gap preventing projections 51, 51, 51, 51 as shown in FIG. It fits in between and closes the gap between the connecting portions 46 in the direction 50 between them. However, the gap preventing protrusion 51 projects more than the connecting portion 46 in the hanging direction.
土手41の頂面41aにはその長手方向に沿って溝54が形
成されている。A groove 54 is formed on the top surface 41a of the bank 41 along the longitudinal direction thereof.
端子押え部48の垂下端面48aと土手41の頂面41aとで各
端子の接続部46,46,46が挟持され、かつ、前述した４つ
の隙間防止突起51の接続部46より突出している部分がす
べて溝54内に挿入される。この場合隙間防止突起51の端
子導出部43側の面が溝54の面に接近する。この両端の隙
間防止突起51は端子23b,23cの各接続部46と溝54の両端
との間をほぼ塞いでいる。また端子押え部48の垂下端面
48aの両端部は土手41の頂面41aとほぼ接している。溝54
の深さは、隙間防止突起51の、端子接続部46より突出し
た部分の長さより大とされている。A portion in which the connecting portions 46, 46, 46 of each terminal are sandwiched between the hanging lower end surface 48a of the terminal pressing portion 48 and the top surface 41a of the bank 41, and which protrudes from the connecting portion 46 of the above-mentioned four gap preventing projections 51. Are all inserted into the groove 54. In this case, the surface of the gap preventing projection 51 on the terminal lead-out portion 43 side approaches the surface of the groove 54. The gap preventing projections 51 at both ends substantially close the space between each connecting portion 46 of the terminals 23b and 23c and both ends of the groove 54. Also, the lower end face of the terminal retainer 48
Both ends of 48a are almost in contact with the top surface 41a of the bank 41. Groove 54
The depth of is larger than the length of the portion of the gap prevention protrusion 51 protruding from the terminal connecting portion 46.
なお、この例では端子押え部48の端子導出部43側の側
面48aには、第３図に示すようにリード端子27を係止す
るための係止部52が設けられている。係止部52は側面48
aより突出し、その突出端面に軸心10と平行したリード
端子案内溝53が３本形成されており、リード端子案内溝
53の溝形成面53aにおける溝幅はリード端子27の直径よ
りわずか小とされ、各リード端子27は軸心10と平行した
状態でリード端子案内溝53内にそれぞれ押し込まれて係
止される。カバー25の円弧状縁は、外面側が内面側より
わずか引込んでおり、回転体収容部42の内周面との間に
溝55が形成されている。In this example, a locking portion 52 for locking the lead terminal 27 is provided on the side surface 48a of the terminal pressing portion 48 on the terminal lead-out portion 43 side, as shown in FIG. The locking part 52 has a side surface 48
Three lead terminal guide grooves 53 protruding from a and parallel to the axis 10 are formed on the protruding end surface.
The groove width of the groove 53 on the groove forming surface 53a is slightly smaller than the diameter of the lead terminal 27, and each lead terminal 27 is pushed into and locked in the lead terminal guide groove 53 in a state parallel to the axis 10. The arc-shaped edge of the cover 25 is slightly recessed on the outer surface side from the inner surface side, and a groove 55 is formed between the outer peripheral side and the inner peripheral surface of the rotating body housing portion 42.
各リード端子27,27,27は、一端が端子導出部43内に挿
入され、この例ではその挿入部が前述したように係止部
52により係止されて、接続部46の孔29において各端子23
a,23b,23cに半田28で接続され、他端はケース開放端11a
から外部に導出される。端子導出部43内に絶縁性接着剤
32が充填され、また溝55にも絶縁性接着剤32が充填さ
れ、カバー25がケース11に固定されると共に、ケース11
の開放面側が密封され、またリード端子27が固定され
る。One end of each lead terminal 27, 27, 27 is inserted into the terminal lead-out portion 43, and in this example, the insertion portion has the locking portion as described above.
52, each terminal 23 in the hole 29 of the connecting portion 46.
Solder 28 is connected to a, 23b, 23c, and the other end is the case open end 11a.
Is derived from the outside. Insulating adhesive in the terminal lead-out part 43
32, the groove 55 is also filled with the insulating adhesive 32, the cover 25 is fixed to the case 11, and the case 11
The open surface side is sealed and the lead terminal 27 is fixed.
端子の延長部45は必ずしも設けなくてもよいが、接着
剤32が絶縁基板18側へ達しないようにする点、及びリー
ド端子27の固定を強固にする点からは、延長部45を設
け、かつその長さを長くした方がよい。The extension portion 45 of the terminal is not necessarily provided, but in order to prevent the adhesive 32 from reaching the insulating substrate 18 side and to firmly fix the lead terminal 27, the extension portion 45 is provided, And it is better to lengthen it.
以上述べたように、この考案の可変抵抗器において
は、回転軸と直角方向において土手によってケース内
が、回転収容部と端子導出部とに区画され、前者に回転
体が収容され、後者内で導電体、抵抗体に対する端子と
リード端子とを接続しているため、可変抵抗器の軸方向
の高さを従来のものより小さくできる。As described above, in the variable resistor of this invention, the inside of the case is partitioned by the bank in the direction perpendicular to the rotation axis into the rotation accommodating portion and the terminal lead-out portion, the former accommodates the rotating body, and the latter accommodates in the latter. Since the terminals for the conductor and the resistor and the lead terminal are connected, the height of the variable resistor in the axial direction can be made smaller than that of the conventional one.
そして回転体収容部の開放面を閉じるカバーと一体に
端子押えを設け、その端子押えの端面と土手の頂面との
間に端子を挟持し、このときできる端子間の隙間は端子
押えから突出させた隙間防止突起で塞がれるので、端子
導出部に充填した絶縁性接着剤が回転体収容部内へ流入
することが防止される。Then, a terminal retainer is provided integrally with the cover that closes the open surface of the rotating body accommodating portion, and the terminal is clamped between the end face of the terminal retainer and the top surface of the bank, and the gap between the terminals at this time protrudes from the terminal retainer. Since the gap preventing projections are closed, the insulating adhesive filled in the terminal lead-out portion is prevented from flowing into the rotary body accommodating portion.
土手の頂面に溝を設けてこの溝に隙間防止突起が挿入
されるので、溝が絶縁性接着剤を溜めて接着剤の回転体
収容部側への侵入を防止している。Since a groove is provided on the top surface of the bank and the gap preventing projection is inserted into this groove, the groove collects the insulating adhesive and prevents the adhesive from entering the rotating body accommodating portion side.
また、端子に延長部45を設ける場合は、接着剤充填時
に絶縁性接着剤が回転体収容部内に一部流入したとして
も、絶縁基板はその流入部位より上方に位置しているか
ら、流入接着剤が絶縁基板に付着する恐れはない。Further, when the extension portion 45 is provided on the terminal, even if the insulating adhesive partially flows into the rotary body accommodating portion at the time of filling the adhesive, since the insulating substrate is located above the inflowing portion, the inflow bonding is performed. There is no risk that the agent will adhere to the insulating substrate.
第１図はこの考案による可変抵抗器の実施例を示す縦断
面図、第２図はケースと回転体の関係を示す分解斜視
図、第３図は絶縁板とカバー、リード端子の関係を示す
分解斜視図、第４図は絶縁基板の平面図、第５図は土手
と端子押え部が端子を挟持した状態を示す拡大断面図、
第６図は従来の可変抵抗器を示す縦断面図、第７図は第
６図に示す従来の可変抵抗器の分解斜視図である。FIG. 1 is a vertical sectional view showing an embodiment of a variable resistor according to the present invention, FIG. 2 is an exploded perspective view showing a relationship between a case and a rotating body, and FIG. 3 is a relationship between an insulating plate, a cover and lead terminals. FIG. 4 is an exploded perspective view, FIG. 4 is a plan view of the insulating substrate, and FIG. 5 is an enlarged cross-sectional view showing a state in which the bank is clamped by the terminal retainer.
FIG. 6 is a longitudinal sectional view showing a conventional variable resistor, and FIG. 7 is an exploded perspective view of the conventional variable resistor shown in FIG.
Claims (1)
て回転体収容部と端子導出部が並んで設けられ、 前記回転体収容部に、前記開放面側に摺動子が取付けら
れ、軸心が前記開放面とほぼ垂直な回転体が回動自在に
収容され、 抵抗体および集電体が形成された絶縁基板で前記回転体
収容部の開放面が閉ざされてその抵抗体および集電体が
前記摺動子と摺動接触させられ、 前記抵抗体の端子および前記集電体の端子が前記端子導
出部に延長挿入され、 前記絶縁基板の回転体収容部の反対側においてカバーが
前記ケースに取付けられ、 そのカバーと一体に突出した端子押えと前記土手とで前
記端子が挟持され、 前記土手の頂面に溝が形成され、 前記端子間において前記端子押えから一体に突出した突
起が前記溝に挿入され、 前記端子導出部内で前記端子にリード端子が接続されて
前記ケースから導出され、 前記端子導出部に絶縁性接着剤が充填されている ことを特徴とする可変抵抗器。1. A rotating body accommodating portion and a terminal lead-out portion are provided side by side in a case through a bank when viewed from the open surface, and a slider is attached to the rotating body accommodating portion on the open surface side. , An rotator having an axis substantially vertical to the open surface is rotatably housed, and the open surface of the rotator housing is closed by an insulating substrate on which a resistor and a current collector are formed. A current collector is brought into sliding contact with the slider, a terminal of the resistor and a terminal of the current collector are extendedly inserted into the terminal lead-out portion, and the cover is provided on the side of the insulating substrate opposite to the rotor accommodating portion. Is attached to the case, the terminal is clamped by the terminal retainer projecting integrally with the cover and the bank, a groove is formed on the top surface of the bank, and the terminal projecting integrally from the terminal retainer between the terminals. The protrusion is inserted into the groove, and the terminal is led out. The lead terminal connected to the terminal at the inner derived from the case, the variable resistor insulating adhesive agent to the terminal lead portion is characterized in that it is filled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10887090U JP2506022Y2 (en) | 1990-10-17 | 1990-10-17 | Variable resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10887090U JP2506022Y2 (en) | 1990-10-17 | 1990-10-17 | Variable resistor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0465411U JPH0465411U (en) | 1992-06-08 |
| JP2506022Y2 true JP2506022Y2 (en) | 1996-08-07 |
Family
ID=31856014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10887090U Expired - Fee Related JP2506022Y2 (en) | 1990-10-17 | 1990-10-17 | Variable resistor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2506022Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4667946B2 (en) * | 2005-04-25 | 2011-04-13 | アルプス電気株式会社 | Variable resistor |
| JP6633203B2 (en) * | 2016-06-30 | 2020-01-22 | アルプスアルパイン株式会社 | Variable resistor |
-
1990
- 1990-10-17 JP JP10887090U patent/JP2506022Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0465411U (en) | 1992-06-08 |
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