JPH02105502A - Variable resistor - Google Patents
Variable resistorInfo
- Publication number
- JPH02105502A JPH02105502A JP63258463A JP25846388A JPH02105502A JP H02105502 A JPH02105502 A JP H02105502A JP 63258463 A JP63258463 A JP 63258463A JP 25846388 A JP25846388 A JP 25846388A JP H02105502 A JPH02105502 A JP H02105502A
- Authority
- JP
- Japan
- Prior art keywords
- case
- electrode
- lead terminal
- terminal
- 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.)
- Pending
Links
- 239000011347 resin Substances 0.000 claims abstract description 10
- 229920005989 resin Polymers 0.000 claims abstract description 10
- 239000000758 substrate Substances 0.000 claims description 19
- 238000009413 insulation Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000004734 Polyphenylene sulfide Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 229920000069 polyphenylene sulfide Polymers 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- SWELZOZIOHGSPA-UHFFFAOYSA-N palladium silver Chemical compound [Pd].[Ag] SWELZOZIOHGSPA-UHFFFAOYSA-N 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 229910001925 ruthenium oxide Inorganic materials 0.000 description 1
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Landscapes
- Details Of Resistors (AREA)
- Adjustable Resistors (AREA)
- Apparatuses And Processes For Manufacturing Resistors (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は可変抵抗器に関し、特に回転調整面がリード端
子のはんだ付は実装面と垂直方向にある垂直調整型チッ
プ可変抵抗器に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a variable resistor, and particularly to a vertically adjustable chip variable resistor in which the rotation adjustment surface is soldered to the lead terminal in a direction perpendicular to the mounting surface.
従来、この種の可変抵抗器は回転調整面がリード端子の
はんだ付は実装面と水平方向にある水平調整型チップ可
変抵抗器をホールダーに取付けて垂直調整型チップ可変
抵抗器とする構造となっていた。第１０図（ａ）、（ｂ
）はこの種の可変抵抗器の一例を示し、第１０図（ａ）
は正面図、第１０図（ｂ）は底面図を示す０図中、３３
ａは集電電極用リード端子、３３ｂ、３３ｃは終端電極
用リード端子を示し、ホールダー１７に製品を取付けた
後、所定の形状に成形する６３４は絶縁樹脂製のケース
で抵抗体および電極部を表面に形成した絶縁基板（図示
省略）、前記電極部と接続されたリード端子３３ａ、３
３ｂ、３３ｃを一体化成形している。２５は絶縁樹脂製
のローターで、下面に抵抗体上を摺動し、抵抗値を可変
させる機能を持つブラシ（図示省略）が固着されている
。Conventionally, this type of variable resistor has a structure in which a horizontally adjustable chip variable resistor whose rotation adjustment surface is soldered horizontally to the mounting surface is attached to a holder to create a vertically adjustable chip variable resistor. was. Figure 10(a),(b)
) shows an example of this type of variable resistor, and FIG. 10(a)
33 in Figure 0 shows the front view and Figure 10(b) shows the bottom view.
33b and 33c are the lead terminals for the current collecting electrode, 33b and 33c are the lead terminals for the terminal electrode, and after the product is attached to the holder 17, it is molded into a predetermined shape. 634 is a case made of insulating resin in which the resistor and the electrode part are placed. An insulating substrate (not shown) formed on the surface, lead terminals 33a, 3 connected to the electrode part
3b and 33c are integrally molded. 25 is a rotor made of insulating resin, and a brush (not shown) is fixed to the bottom surface of the rotor, which slides on a resistor and has a function of varying the resistance value.
２６はローター２５を抵抗体側に加圧してブラシの接触
圧力を一定に保持する機能と、ケース３４とローター２
５間の密閉性を確保する機能とを持つＯリング（図示省
略）を所定量加圧するステンレス等金属製のカバーであ
る。26 has a function of pressurizing the rotor 25 toward the resistor side to keep the contact pressure of the brush constant, and a case 34 and the rotor 2.
This is a cover made of metal such as stainless steel that pressurizes an O-ring (not shown) by a predetermined amount, which has the function of ensuring airtightness between 5 and 5.
上述した従来の可変抵抗器は、上下両面にホールグ−１
７の肉厚を加算する構造となっているので、製品高さが
高くなるという欠点がある。また、ホールグー１７追加
による部品点数理と、ホールグー１７への製品の取付け
は、自動化が難しいので、コスト高になるという欠点も
ある。The conventional variable resistor described above has hole groups on both the upper and lower sides.
Since the structure is such that the wall thickness of 7 is added, there is a drawback that the product height becomes high. Furthermore, it is difficult to automate the calculation of the number of parts due to the addition of the hole goo 17 and the attachment of products to the hall goo 17, so there is also the drawback that the cost is high.
本発明の目的は、表面実装で最も求められる製品高さを
小さくでき、またホールグーを不要として部品点数をへ
らし、組立の自動化を可能とし低コスト化された可変抵
抗器を提供することにある。An object of the present invention is to provide a variable resistor that can reduce the product height, which is most required for surface mounting, eliminates the need for holes, reduces the number of parts, and enables automation of assembly at a reduced cost.
本発明の可変抵抗器は、絶縁基板の表面に形成されてい
る集電電極部および終端電極部と接続した集電電極用リ
ードおよび終端電極用リードとが前記絶縁基板の表面と
垂直且つ互いに１８０°反対方向に絶縁樹脂製のケース
から露出し、絶縁基板とリード端子とが前記ケースと一
体化成形されている。In the variable resistor of the present invention, the current collecting electrode lead and the terminating electrode lead connected to the current collecting electrode part and the terminating electrode part formed on the surface of the insulating substrate are perpendicular to the surface of the insulating substrate and 180 degrees apart from each other. The insulating substrate and lead terminals are exposed from the insulating resin case in the opposite direction, and are integrally molded with the case.
したがって、従来の垂直調整型チップ可変抵抗器に使用
されているホールグーが不要となる。Therefore, the holes used in conventional vertically adjustable chip variable resistors are not required.
次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図（ａ）、（ｂ）、第２図（ａ）、（ｂ）、第３図
（ａ）、（ｂ）、第４図（ａ）、（ｂ）は本発明の一実
施例の可変抵抗器の製造の過程を説明するために工程順
に示した平面図および中央縦断面図である。第１図（ａ
）、（ｂ）において、１１はアルミナセラミック等より
なる長方形の絶縁基板である。１２ａは絶縁基板１１の
表面の中央が円状で上辺に至る銀パラジウム等により形
成する集電電極部である。また、１２ｂ、１２ｃは終電
電極部１２ａの外側に隔離して銀パラジウム等により、
集電電極部１２ａと同時に形成する終端電極部である。Figures 1(a) and (b), Figures 2(a) and (b), Figures 3(a) and (b), and Figures 4(a) and (b) are examples of the present invention. FIG. 2 is a plan view and a central vertical cross-sectional view shown in order of steps to explain the manufacturing process of the variable resistor of FIG. Figure 1 (a
) and (b), 11 is a rectangular insulating substrate made of alumina ceramic or the like. Reference numeral 12a denotes a current collecting electrode portion formed of silver-palladium or the like, which has a circular shape at the center of the surface of the insulating substrate 11 and extends to the upper side. In addition, 12b and 12c are isolated outside the final electrode part 12a and made of silver palladium or the like.
This is a terminal electrode portion formed at the same time as the current collecting electrode portion 12a.
１２ｄは集電電極部１２ａの外側に隔離して酸化ルテニ
ウム等により形成する円弧状の抵抗体である。終端電極
部１２ｂ、１２ｃは抵抗体１２ｄの終端と各々が連接し
て絶縁基板１１の下辺側の角部に至る。Reference numeral 12d denotes an arc-shaped resistor formed of ruthenium oxide or the like and isolated outside the current collecting electrode portion 12a. The terminal electrode portions 12b and 12c are each connected to the terminal end of the resistor 12d and reach the lower corner of the insulating substrate 11.
次に、第２図（ａ＞、（ｂ）において、１３は無酸素銅
又は銅合金等の平板をプレス成形し、表面にはんだメツ
キ処理をしたリード端子である。Next, in FIGS. 2(a) and (b), 13 is a lead terminal which is press-molded from a flat plate of oxygen-free copper or copper alloy, and whose surface is solder-plated.
集電電極用リード端子１３ａ、終端電極用リード端子１
３ｂ、１３ｃが連鎖部１３ｄと定ピツチで多数個つなが
っている。集電電極用リード端子１３ａは絶縁基板１１
の上辺の集電電極部１２ａと、終端電極用リード端子１
３ｂ、１３ｃは絶縁基板１１の下辺側の角部の終端電極
部１２ｂ。Lead terminal 13a for current collecting electrode, lead terminal 1 for terminal electrode
3b and 13c are connected to the chain portion 13d in large numbers at regular pitches. The lead terminal 13a for the current collecting electrode is connected to the insulating substrate 11.
The current collecting electrode part 12a on the upper side and the terminal electrode lead terminal 1
3b and 13c are terminal electrode portions 12b at the corners of the lower side of the insulating substrate 11.
１２ｃとそれぞれ熱圧着、はんだ付は等の公知の手段に
より固着接続する。12c and are fixedly connected to each other by known means such as thermocompression bonding, soldering, etc.
次に、第３図（ａ）、（ｂ）に示すように、集電電極用
リード端子１３ａと終端電極用リード端子１３ｂ、１３
Ｃとが、絶縁基板１１の表面と垂直且つ、互いに１８０
°反対方向になるよう成形した後、第４図（ａ）、（ｂ
）に示す符号１４のエポキシ、ＰＰＳ （ポリフェニレ
ンサルファイド）等の絶縁樹脂製のケースをモールド成
形する。絶縁基板１１とリード端子１３は、絶縁基板１
１の表面の中央に設けた集電電極部１２ａと、抵抗体１
２ｄの全部と、終端電極部１２ｂ、１２Ｃの一部を除く
領域を覆う絶縁樹脂でケース１４と一体化されている。Next, as shown in FIGS. 3(a) and 3(b), the current collecting electrode lead terminal 13a and the terminal electrode lead terminal 13b, 13
C are perpendicular to the surface of the insulating substrate 11 and at 180 degrees from each other.
° After molding in the opposite direction, Figure 4 (a), (b)
) A case 14 made of insulating resin such as epoxy or PPS (polyphenylene sulfide) is molded. The insulating substrate 11 and the lead terminals 13 are connected to the insulating substrate 1
1, and a current collecting electrode portion 12a provided at the center of the surface of the resistor 1.
It is integrated with the case 14 with an insulating resin that covers the entire region 2d and a region except for a part of the terminal electrode portions 12b and 12C.
ケース１４の外表面に露出しているリード端子１３は集
電電極用リード端子１３ａ、終端電極用リード端子１３
ｂ、１３ｃのプリント配線板等への外部接続部分と連鎖
部１３ｄである。尚、連鎖部１３ｄについてはモールド
成形後、ケース１４の外端面より内側でカットする。１
４ａは絶縁性樹脂の注入口となるビンポイントゲートで
あり、モールド成形直後の離型段階でケース１４の根本
から自動的に破断される。第９図（ａ）、（ｂ）は本発
明の一実施例の可変抵抗器の外観を示す正面図、底面図
である。１５はＰＰＳ等より成る絶縁樹脂製のローター
で、下面に抵抗体１２ｄ上を摺動し、抵抗値を可変させ
る機能を持つブラシ（図示省略）が固着されている。１
６はローター１５を抵抗体１２ｄ側に加圧してブラシの
接触圧力を一定に保持する機能と、ケース１４とロータ
ー１５間の密閉性を確保する機能とを持つＯリング（図
示省略）を所定量加圧するステンレス等の金属製のカバ
ーでケース１４と固着する。The lead terminals 13 exposed on the outer surface of the case 14 are a collector electrode lead terminal 13a and a terminal electrode lead terminal 13.
b, 13c are external connection parts to a printed wiring board, etc., and a chain part 13d. Note that the chain portion 13d is cut inside the outer end surface of the case 14 after molding. 1
Reference numeral 4a denotes a bottle point gate which serves as an inlet for insulating resin, and is automatically broken from the base of the case 14 at the mold release stage immediately after molding. FIGS. 9(a) and 9(b) are a front view and a bottom view showing the external appearance of a variable resistor according to an embodiment of the present invention. Reference numeral 15 denotes a rotor made of insulating resin made of PPS or the like, and a brush (not shown) that slides on the resistor 12d and has a function of varying the resistance value is fixed to the lower surface. 1
6 is a predetermined amount of O-rings (not shown) that have the function of pressurizing the rotor 15 toward the resistor 12d to keep the contact pressure of the brush constant, and the function of ensuring airtightness between the case 14 and the rotor 15. It is fixed to the case 14 with a pressurized cover made of metal such as stainless steel.
第５図（ａ）、（ｂ）、第６図（ａ）、（ｂ）、第７図
（ａ＞、（ｂ）第８図（ａ）、（ｂ）は本発明の他の実
施例の可変抵抗器の製造の１過程を示す平面図および、
中央縦断面図である。本実施例は集電電極用リード端子
２３ａおよび終端電極用リード端子２３ｂ、２３ｃを電
極部１２ａ、１２ｂ、１２ｃとの接続点から、直接プリ
ント配線板等への外部接続部分へ引き出すため、第１の
実施例と比べ、製品高さが若干高くなるが、横巾寸寸法
が小さくなる利点がある。FIGS. 5(a), (b), FIGS. 6(a), (b), FIG. 7(a>,(b)) and FIGS. 8(a), (b) are other embodiments of the present invention. A plan view showing one process of manufacturing the variable resistor, and
FIG. In this embodiment, in order to draw out the current collecting electrode lead terminal 23a and the terminal electrode lead terminals 23b, 23c from the connection points with the electrode parts 12a, 12b, 12c directly to the external connection part to the printed wiring board, etc., the first Although the product height is slightly higher than that in Example 2, there is an advantage that the width dimension is smaller.
以上説明したように本発明は、集電電極用リード端子と
終端電極用リード端子とが絶縁基板の表面と垂直且つ互
いに１８０°反対方向に絶縁樹脂製のケースから露出し
、絶縁基板とリード端子とが前記ケースと一体化成形さ
れていることにより、ホールダーを使用せずに垂直調整
型チップ可変抵抗器を構成できるため、表面実装化の最
大の訴求ポイントである製品高さを小さくできる効果が
ある。また、ホールグー不要による部品点数削減と組立
の自動化が可能となるなめ低コストで生産できる効果も
ある。As explained above, in the present invention, the lead terminal for the current collecting electrode and the lead terminal for the terminal electrode are exposed from the insulating resin case perpendicularly to the surface of the insulating substrate and in directions 180 degrees opposite to each other, and the insulating substrate and the lead terminal By being integrally molded with the case, it is possible to configure a vertically adjustable chip variable resistor without using a holder, which has the effect of reducing the product height, which is the most appealing point of surface mounting. be. It also has the effect of reducing the number of parts and automating assembly by eliminating the need for holes, resulting in lower cost production.
第１図（ａ）、（ｂ）、第２図＜ａ）、（ｂ）、。
第３図（ａ）、（ｂ）、第４図（ａ）、（ｂ）、は本発
明の一実施例の可変抵抗器の製造の１過程を示す平面図
および、中央縦断面図、第５図（ａ）。
（ｂ）、第６図（ａ）、（ｂ）、第７図（ａ）。
（ｂ〉、第８図（ａ）、（ｂ）は本発明の第２の実施例
の可変抵抗器の製造の１過程を示す平面図および中央縦
断面図、第９図（ａ）、（ｂ）は本発明の一実施例の可
変抵抗器の外観を示す正面図および底面図、第１０図（
ａ）、（ｂ）は従来の可変抵抗器の外観を示す正面図お
よび底面図である。
１１・・・絶縁基板、１２ａ・・・集電電極部、１２ｂ
。
１２ｃ・・・終端電極部、１２ｄ・・・抵抗体、１３．
２３・・・リード端子、１３ａ、２３ａ、３３ａ・・・
集電電極用リード端子、１３ｂ、１３ｃ、２３ｂ、２３
ｃ、３３ｂ、３３ｃ・・・終端電極用リード端子、１３
ｄ、２３ｄ・・・連鎖部、１４，２４．３４・・・ケー
ス、１４ａ、２４ａ・・・ビンポイントゲート、１５．
２５・・・ローター １６．２６・・・カバー １７・
・・ホールダー
第８図
／６：カバー
？乙 カバ゛−
１７、本−ルダゝFig. 1 (a), (b), Fig. 2<a), (b),. 3(a), (b), and FIG. 4(a), (b) are a plan view showing one process of manufacturing a variable resistor according to an embodiment of the present invention; Figure 5(a). (b), Fig. 6 (a), (b), Fig. 7 (a). (b), FIGS. 8(a) and (b) are a plan view and a central vertical sectional view showing one process of manufacturing the variable resistor of the second embodiment of the present invention, and FIGS. 9(a) and (b) are b) is a front view and bottom view showing the external appearance of a variable resistor according to an embodiment of the present invention, and FIG.
A) and (B) are a front view and a bottom view showing the appearance of a conventional variable resistor. 11... Insulating substrate, 12a... Current collecting electrode part, 12b
. 12c...Terminal electrode portion, 12d...Resistor, 13.
23... Lead terminal, 13a, 23a, 33a...
Lead terminal for current collecting electrode, 13b, 13c, 23b, 23
c, 33b, 33c... Lead terminal for terminal electrode, 13
d, 23d... Chain part, 14, 24. 34... Case, 14a, 24a... Bin point gate, 15.
25...Rotor 16.26...Cover 17.
...Holder Figure 8/6: Cover? B Cover 17, Book card
Claims (1)
体および前記抵抗体の終端と各々とが連接した終端電極
部とが表面に形成された絶縁基板と、前記抵抗体の全部
と中央の集電電極部および終端電極部の一部を除く領域
を覆う絶縁樹脂製のケースと、前記絶縁基板およびケー
スに対して固定されて前記電極部に接続されたリード端
子とを有する可変抵抗器において、集電電極部と接続し
た集電電極用リード端子と、終端電極部と接続した終端
電極用リード端子とが、前記絶縁基板の表面と垂直且つ
互いに１８０℃反対方向にケース外端面から露出し、前
記絶縁基板とリード端子とが前記ケースと一体化成形さ
れていることを特徴とする可変抵抗器。an insulating substrate having a surface formed thereon with a current collector electrode part, an arc-shaped resistor isolated on the outer periphery, and a termination electrode part connected to each end of the resistor; and all of the resistor. A variable resistor including a case made of insulating resin that covers an area excluding a central current collecting electrode section and a part of the terminal electrode section, and a lead terminal fixed to the insulating substrate and the case and connected to the electrode section. In the case, the current collecting electrode lead terminal connected to the current collecting electrode part and the terminating electrode lead terminal connected to the terminating electrode part are connected perpendicularly to the surface of the insulating substrate and in directions 180 degrees opposite to each other from the outer end surface of the case. A variable resistor characterized in that the insulating substrate and lead terminals are exposed and integrally molded with the case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63258463A JPH02105502A (en) | 1988-10-14 | 1988-10-14 | Variable resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63258463A JPH02105502A (en) | 1988-10-14 | 1988-10-14 | Variable resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02105502A true JPH02105502A (en) | 1990-04-18 |
Family
ID=17320575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63258463A Pending JPH02105502A (en) | 1988-10-14 | 1988-10-14 | Variable resistor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02105502A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020148943A1 (en) * | 2019-01-15 | 2020-07-23 | 株式会社豊田自動織機 | Rocker arm |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58210603A (en) * | 1982-06-01 | 1983-12-07 | 北陸電気工業株式会社 | Method of producing substrate for variable resistor |
-
1988
- 1988-10-14 JP JP63258463A patent/JPH02105502A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58210603A (en) * | 1982-06-01 | 1983-12-07 | 北陸電気工業株式会社 | Method of producing substrate for variable resistor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020148943A1 (en) * | 2019-01-15 | 2020-07-23 | 株式会社豊田自動織機 | Rocker arm |
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