JPH0546710B2 - - Google Patents
Info
- Publication number
- JPH0546710B2 JPH0546710B2 JP21959085A JP21959085A JPH0546710B2 JP H0546710 B2 JPH0546710 B2 JP H0546710B2 JP 21959085 A JP21959085 A JP 21959085A JP 21959085 A JP21959085 A JP 21959085A JP H0546710 B2 JPH0546710 B2 JP H0546710B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- molded
- photointerrupter
- light receiving
- primary
- 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
- 229920005989 resin Polymers 0.000 claims description 11
- 239000011347 resin Substances 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 description 8
- 238000000465 moulding Methods 0.000 description 8
- 229920003002 synthetic resin Polymers 0.000 description 7
- 239000000057 synthetic resin Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001721 transfer moulding Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/12—Technologies relating to agriculture, livestock or agroalimentary industries using renewable energies, e.g. solar water pumping
Landscapes
- Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はホトインタラプタに関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a photointerrupter.
（発明の概要）
本発明は、発光素子と受光素子を組み合わせ１
つのパツケージに一体化した、物体を検出するこ
とを目的とするホトインタラプタにおいて、組立
作業の簡素化及び生産性の向上を達成できるよう
な簡易な構造を提供するものであつて、発光素子
と受光素子を一枚のフレームに搭載し、２層のト
ランスフアモールド成型により各素子を同時にモ
ールドしてまた両部分を一体化し、かつ前記各受
発光素子を封止する１次モールドパツケージに、
光効率を高めるための反射面を形成しておくもの
である。(Summary of the invention) The present invention combines a light emitting element and a light receiving element.
A photointerrupter that is integrated into one package and has the purpose of detecting objects, provides a simple structure that simplifies assembly work and improves productivity, and includes a light emitting element and light receiving element. The elements are mounted on a single frame, each element is simultaneously molded by two-layer transfer molding, and both parts are integrated into a primary mold package that seals each of the light receiving and emitting elements.
A reflective surface is formed to increase light efficiency.
（従来の技術）
ホトインタラプタには透過型と反射型とがあ
り、どちらも発光素子として一般に赤外発光ダイ
オードが使用され、受光素子としてホトトランジ
スタ、ホトダイオード、又は信号処理回路をワン
チツプ化したもの等が使用されている。(Prior art) There are two types of photointerrupters: transmission type and reflection type. In both cases, an infrared light emitting diode is generally used as the light emitting element, and a phototransistor, photodiode, or one-chip signal processing circuit is used as the light receiving element. is used.
従来の透過型ホトインタラプタは、第７図に示
すように、発光素子１、受光素子２がそれぞれ透
光性の合成樹脂でモールドされるとともに、これ
ら発光素子１、受光素子２が相対向するように遮
光性の材料から成るホルダ３に組み込まれたもの
である。なお、図中、４，４は透光窓である。 In the conventional transmission type photointerrupter, as shown in FIG. 7, the light emitting element 1 and the light receiving element 2 are molded with transparent synthetic resin, and the light emitting element 1 and the light receiving element 2 are arranged so as to face each other. It is incorporated into a holder 3 made of a light-shielding material. In addition, in the figure, 4 and 4 are light-transmitting windows.
また、従来の反射型ホトインタラプタは、第８
図に示すように、発光素子１、受光素子２が、一
側面に透光窓５，５が並設された遮光性の材料か
らなるステム６に組み込まれるとともに、上記透
過型ホトインタラプタと同様に透光性の合成樹脂
でモールドされたものである。 In addition, the conventional reflective photointerrupter has an 8th
As shown in the figure, a light-emitting element 1 and a light-receiving element 2 are incorporated into a stem 6 made of a light-shielding material with light-transmitting windows 5, 5 arranged side by side on one side, and similar to the transmission type photointerrupter described above. It is molded with transparent synthetic resin.
（発明が解決しようとする問題点）
しかしながら、上記従来のホトインタラプタに
あつては、透過型および反射型とも、発光素子
１、受光素子２をそれぞれ合成樹脂によりモール
ドし、これらモールドしたものをホルダ３やステ
ム６に組み込むものであるため、組立作業が煩雑
となり、生産性が悪いといつた問題があつた。ま
た、発光素子と受光素子とを間違えて組み込んで
しまうといつた組み込みミスを招くおそれがあ
り、上記の問題とともにコストダウンを阻む要因
となつていた。(Problems to be Solved by the Invention) However, in the conventional photointerrupter described above, both the transmissive type and the reflective type, the light emitting element 1 and the light receiving element 2 are each molded with synthetic resin, and these molded products are placed in a holder. 3 and the stem 6, the assembly work was complicated and there were problems such as poor productivity. Furthermore, there is a risk of assembly errors such as incorrectly mounting the light emitting element and the light receiving element, which, together with the above problem, is a factor that hinders cost reduction.
（問題点を解決するための手段）
本発明は、上記問題点を解決するためになされ
たもので、同一フレームの幅広面上に搭載した発
光素子及び受光素子が透光性樹脂によつてそれぞ
れ個別に１次モールドされてなり、前記両１次モ
ールドパツケージの対向面それぞれに突出部及び
前記両１次モールドパツケージの上方にそれぞれ
前記突出部への反射面が形成され、且つ前記両１
次モールドパツケージは前記各突出部のスリツト
部となる先端部を除き遮光性樹脂によつて一体的
に２次モールドされてなることを特徴とする。(Means for Solving the Problems) The present invention has been made to solve the above problems, and the light emitting element and the light receiving element mounted on the wide surface of the same frame are each made of a translucent resin. are individually primary molded, a protrusion is formed on each of the opposing surfaces of the two primary mold packages, and a reflective surface for the protrusion is formed above each of the two primary mold packages;
The next-molded package is characterized in that it is integrally second-molded with a light-shielding resin except for the tip portions of each of the protrusions that serve as slit portions.
（作用）
上記のように構成されたことにより、発光素子
と受光素子とをそれぞれフレーム単位で合成樹脂
によりモールドし、各発光素子および各受光素子
をフレームから切り離すことなく両者を一体化さ
せることが可能となる。(Function) With the above configuration, it is possible to mold the light emitting element and the light receiving element in each frame with synthetic resin, and to integrate the two without separating each light emitting element and each light receiving element from the frame. It becomes possible.
又、前記各素子を封止する１次モールドパツケ
ージに反射面を形成することによつて光伝達効果
が増す。 Furthermore, by forming a reflective surface on the primary mold package that seals each of the elements, the light transmission effect is increased.
また、同一フレームの幅広面上に搭載した受発
光素子を透光性樹脂によつてそれぞれ個別に１次
モールドし、この両１次モールドパツケージを遮
光性樹脂によつて一体的に２次モールドするの
で、素子の大きさを制限することなく、組み立て
作業が簡単で生産性に優れたホトインタラプタを
実現できる。 In addition, the light receiving and emitting elements mounted on the wide side of the same frame are individually primary molded using translucent resin, and both primary molded packages are integrally secondary molded using light blocking resin. Therefore, it is possible to realize a photointerrupter that is easy to assemble and has excellent productivity without limiting the size of the element.
さらに、両１次モールドパツケージの対向面そ
れぞれに突出部を形成し、且つ前記両１次モール
ドパツケージを前記各突出部のスリツト部となる
先端部を除き遮光性樹脂によつて一体的に２次モ
ールドするので、スリツト部を、例えば穿孔工程
によつたりすることなくきわめて容易に形成で
き、全体の組み立て作業の簡略化に寄与できる。 Furthermore, a protrusion is formed on each of the opposing surfaces of both the primary mold packages, and the both primary mold packages are integrally made into a secondary mold using a light-shielding resin, except for the tips of the respective protrusions that become the slits. Since it is molded, the slit portion can be formed very easily without having to go through a drilling process, for example, and can contribute to simplifying the overall assembly work.
また、フレームをホトインタラプタの本体側面
より折曲することなくそのまま横方向に引き出し
てリード部とすることができる。 Further, the frame can be pulled out laterally from the side surface of the main body of the photointerrupter without being bent, and can be used as a lead portion.
（実施例）
以下、本発明の実施例を図面を参照して説明す
る。(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.
第１図〜第３図及び第４図〜第６図は、本発明
を透過型ホトインタラプタに適用したものを示
す。第１図〜第３図はスリツト部の形状が縦方向
の場合、第４図〜第６図はスリツト部の形状が横
方向の場合を示す。 1 to 3 and 4 to 6 show the application of the present invention to a transmission type photointerrupter. 1 to 3 show cases in which the shape of the slit portion is vertical, and FIGS. 4 to 6 show cases in which the shape of the slit portion is in the horizontal direction.
この透過型ホトインタラプタは、発光素子１を
モールドしてなる発光部７と、この発光部７とは
別に受光素子２をモールドしてなる受光部８とか
らなつている。 This transmission type photointerrupter is composed of a light emitting section 7 formed by molding the light emitting element 1, and a light receiving section 8 formed by molding the light receiving element 2 separately from the light emitting section 7.
まず、第１図に示すように、同一のフレームの
各リード部９ａ，９ｂの幅広の先端部に、発光素
子１と受光素子２をそれぞれダイボンドし、ワイ
ヤボンドして各素子１，２を透光性の合成樹脂１
０で同時に１次モールドする。このとき、第２図
のように、１次モールドパツケージの前面（物体
の通過路を間に介して受発光部７、８の相対向す
る面）上部には、光の出入口となるスリツト部１
０ａ，１０ａが上下方向に沿つてそれぞれ突出形
成されている。又、該スリツト部１０ａから出る
光を増し光電達率を高めるため、１次モールドパ
ツケージの上面後部には反射面１０ｂ，１０ｂが
形成されている。 First, as shown in FIG. 1, the light emitting element 1 and the light receiving element 2 are die-bonded to the wide tips of the lead parts 9a and 9b of the same frame, respectively, and wire-bonded to make each element 1 and 2 transparent. Photosensitive synthetic resin 1
Perform primary molding at the same time at 0. At this time, as shown in Fig. 2, a slit section 1 is provided at the top of the front surface of the primary mold package (the surface where the light receiving and emitting sections 7 and 8 face each other with the passage of the object in between).
0a and 10a are respectively formed to protrude along the vertical direction. Further, in order to increase the light emitted from the slit portion 10a and increase the photoelectric delivery rate, reflective surfaces 10b, 10b are formed at the rear of the upper surface of the primary mold package.
次に、このように形成された１次モールドパツ
ケージの外部周辺を、光の出入口となるスリツト
部１０ａ，１０ａの前方を開口して、発光部７と
受光部８とが物体の通過路を介して相対向するよ
うに、遮光性の合成樹脂１１で２次モールドす
る。 Next, the outer periphery of the primary mold package formed in this way is opened in front of the slit parts 10a, 10a, which serve as light entrances and exits, so that the light-emitting part 7 and the light-receiving part 8 are connected to each other through an object passage. Secondary molding is performed using a light-shielding synthetic resin 11 so that they face each other.
このように発光部７と受光部８は、フレームに
つながつたままの状態で、遮光性の樹脂１１によ
り２次モールドして一体化される。この後、フレ
ームの各リード部、９ａ，９ｂ…をそれぞれ切り
離す。 In this way, the light emitting section 7 and the light receiving section 8 are integrated by secondary molding with the light-shielding resin 11 while remaining connected to the frame. After that, each lead portion 9a, 9b, . . . of the frame is separated.
第４図〜第６図は、スリツト部の形状が横方向
の実施例を示し、１次モールドの際、スリツト部
１０a′，１０a′を横方向にそれぞれ倒出形成して
おき、第５図に示すように、スリツト部１０a′，
１０a′の前方を開口して遮光性の合成樹脂１１で
２次モールドしたものである。他の構成は上記縦
方向のスリツト部を有するホトインタラプタと同
様である。 4 to 6 show an embodiment in which the shape of the slit portion is in the horizontal direction, and during the primary molding, the slit portions 10a' and 10a' are respectively formed to be inclined in the horizontal direction. As shown in , the slit portions 10a',
The front part 10a' is opened and secondary molded with a light-shielding synthetic resin 11. The other structure is the same as that of the photointerrupter having the vertical slit portion described above.
このように、本構造によれば、素子の組み込み
作業等が不要で、これにより迅速かつ確実に組み
立てることができるとともに、発光素子１及び受
光素子２を一枚のフレームに搭載し、２層のトラ
ンスフアモールドで成型するものであるため、１
次モールドパツケージに反射面を形成することは
容易で、それによつてさらに光電達効果を増すこ
とができる。また、受発光素子１，２はフレーム
の幅広面上へ搭載するので、素子の大きさが限定
されることもない。さらに、スリツト部の形成
は、両１次モールドパツケージを各突出部の先端
部を除き遮光性樹脂によつて一体的に２次モール
ドして行うので、例えば穿孔工程によつたりする
ことなく、きわめて容易に形成でき、全体の組み
立て作業の簡略化に寄与できる。しかも、１次モ
ールドパツケージのスリツト部の形状を、縦方向
（第１図〜第３図）と横方向（第４図〜第６図）
に自由に変えることができるので、使用用途を拡
大できる利点もある。 In this way, according to this structure, there is no need to assemble the elements, and it can be assembled quickly and reliably. In addition, the light emitting element 1 and the light receiving element 2 are mounted on one frame, and the two-layer Since it is molded using transfer molding, 1
It is easy to form a reflective surface on the next molded package, thereby further increasing the photodelivery effect. Further, since the light receiving and emitting elements 1 and 2 are mounted on the wide side of the frame, the size of the elements is not limited. Furthermore, since the slit portion is formed by integrally secondary molding both primary molded packages with a light-shielding resin except for the tips of each protruding portion, the slit portion is formed without using, for example, a drilling process. It can be formed extremely easily and contributes to simplifying the overall assembly work. Moreover, the shape of the slit portion of the primary mold package can be changed in the vertical direction (Figs. 1 to 3) and in the horizontal direction (Figs. 4 to 6).
Since it can be changed freely, it has the advantage of expanding the range of uses.
また、本構造のホトインタラプタは、同一フレ
ームの幅広面上に受発光素子１，２を搭載し、且
つ両素子の各１次モールドパツケージのそれぞれ
の上方に突出部への反射面１０ｂを設けているの
で、上記のフレームをホトインタラプタの本体側
面より折曲することなくそのまま横方向に引き出
して外部接続用のリード部９ａ，９ｂとできる構
造であり、外部への接続をホトインタラプタの本
体底部ではなく本体側面方向で接続する際に有効
なホトインタラプタ形状を実現できる。 In addition, the photointerrupter of this structure has the light receiving and emitting elements 1 and 2 mounted on the wide side of the same frame, and a reflecting surface 10b for the protrusion is provided above each of the primary mold packages of both elements. Therefore, the above-mentioned frame can be pulled out laterally from the side of the main body of the photointerrupter without bending, and can be used as lead parts 9a and 9b for external connection. It is possible to realize a photointerrupter shape that is effective when connecting from the side of the main body.
尚、本発明を反射型ホトインタラプタに適用し
たものは、上記透過型ホトインタラプタの成形金
型を変えるだけで容易に作ることができる。 Incidentally, a reflection type photointerrupter to which the present invention is applied can be easily manufactured by simply changing the molding die for the transmission type photointerrupter.
（発明の効果）
本発明のホトインタラプタは、組立作業が簡単
で、生産性に優れ、また、従来のように組立時に
発光素子と受光素子を間違えるといつたミスを防
止することができる。したがつて、従来困難であ
つたコストダウンを計ることができるものであ
る。(Effects of the Invention) The photointerrupter of the present invention is easy to assemble, has excellent productivity, and can prevent mistakes, such as mistakes made when assembling the light-emitting element and the light-receiving element, as in the past. Therefore, it is possible to reduce costs, which has been difficult in the past.
また、受発光素子の大きさを限定することなく
フレームに搭載できる。さらに、スリツトの形成
を容易に行える。しかも、本体側面より折曲する
ことなくそのまま横方向に引き出したリード部を
有し、外部への接続を本体底部ではなく本体側面
方向で接続する際に有効なホトインタラプタを実
現できる。 Furthermore, the light receiving and emitting elements can be mounted on the frame without limiting the size. Furthermore, the slits can be easily formed. Moreover, it has a lead portion that is pulled out laterally from the side surface of the main body without being bent, and it is possible to realize a photointerrupter that is effective when connecting to the outside not from the bottom of the main body but from the side surface of the main body.
第１図乃至第３図及び第４図乃至第６図は本発
明を透過型ホトインタラプタに適用した一実施例
を示し、第１図は縦方向のスリツト形成例を示す
上面断面図、第２図は同正面断面図、第３図は第
１図のＡ−A′断面より見た同側面図、第４図は
横方向のスリツト形成例を示す上面断面図、第５
図は同正面断面図、第６図は第４図のＢ−B′断
面より見た同側面図、第７図及び第８図はそれぞ
れ異なる従来例を示す断面図である。
１……発光素子、２……受光素子、７……発光
部、８……受光部、９ａ，９ｂ……同一フレーム
のリード部、１０……透光性樹脂、１０ａ，１０
a′……スリツト部、１０ｂ……反射面、１１……
遮光性樹脂。
1 to 3 and 4 to 6 show an embodiment in which the present invention is applied to a transmission type photointerrupter. FIG. 1 is a top sectional view showing an example of forming vertical slits, and The figure is a front sectional view of the same, FIG. 3 is a side view of the same as seen from the A-A' cross section of FIG. 1, FIG.
The figure is a front sectional view of the same, FIG. 6 is a side view of the same as seen from the BB' section of FIG. 4, and FIGS. 7 and 8 are sectional views showing different conventional examples. DESCRIPTION OF SYMBOLS 1... Light emitting element, 2... Light receiving element, 7... Light emitting part, 8... Light receiving part, 9a, 9b... Lead part of the same frame, 10... Transparent resin, 10a, 10
a'...Slit part, 10b...Reflecting surface, 11...
Light blocking resin.
Claims (1)
及び受光素子が透光性樹脂によつてそれぞれ個別
に１次モールドされてなり、前記両１次モールド
パツケージの対向面それぞれに突出部及び前記両
１次モールドパツケージの上方にそれぞれ前記突
出部への反射面が形成され、且つ前記両１次モー
ルドパツケージは前記各突出部のスリツト部とな
る先端部を除き遮光性樹脂によつて一体的に２次
モールドされてなることを特徴とするホトインタ
ラプタ。1 A light-emitting element and a light-receiving element mounted on the wide side of the same frame are individually primary molded with a translucent resin, and a protrusion and a protrusion are formed on the opposing surfaces of both the primary molded packages. A reflecting surface toward the protrusion is formed above each of the secondary mold packages, and both primary mold packages are integrally formed with a secondary mold package using light-shielding resin, except for the tip portions that become the slit portions of each of the protrusions. A photo interrupter characterized by being molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60219590A JPS6278887A (en) | 1985-10-01 | 1985-10-01 | Photointerrupter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60219590A JPS6278887A (en) | 1985-10-01 | 1985-10-01 | Photointerrupter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6278887A JPS6278887A (en) | 1987-04-11 |
| JPH0546710B2 true JPH0546710B2 (en) | 1993-07-14 |
Family
ID=16737917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60219590A Granted JPS6278887A (en) | 1985-10-01 | 1985-10-01 | Photointerrupter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6278887A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0749815Y2 (en) * | 1990-07-23 | 1995-11-13 | シャープ株式会社 | Surface mount type optical coupling device |
| JP2530369Y2 (en) * | 1990-10-05 | 1997-03-26 | シャープ株式会社 | Optical coupling device |
| KR100542869B1 (en) * | 1996-10-22 | 2006-05-23 | 로무 가부시키가이샤 | Photo Interrupter |
| JP2007059657A (en) * | 2005-08-25 | 2007-03-08 | Citizen Electronics Co Ltd | Photo interrupter |
| JP2007059658A (en) * | 2005-08-25 | 2007-03-08 | Citizen Electronics Co Ltd | Photo interrupter |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59121984A (en) * | 1982-12-28 | 1984-07-14 | Nec Corp | Optical coupling element |
| JPS59195882A (en) * | 1983-04-20 | 1984-11-07 | Nec Corp | Interrupter |
-
1985
- 1985-10-01 JP JP60219590A patent/JPS6278887A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59121984A (en) * | 1982-12-28 | 1984-07-14 | Nec Corp | Optical coupling element |
| JPS59195882A (en) * | 1983-04-20 | 1984-11-07 | Nec Corp | Interrupter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6278887A (en) | 1987-04-11 |
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