JP2868255B2 - Manufacturing method of photo interrupter - Google Patents
Manufacturing method of photo interrupterInfo
- Publication number
- JP2868255B2 JP2868255B2 JP30795289A JP30795289A JP2868255B2 JP 2868255 B2 JP2868255 B2 JP 2868255B2 JP 30795289 A JP30795289 A JP 30795289A JP 30795289 A JP30795289 A JP 30795289A JP 2868255 B2 JP2868255 B2 JP 2868255B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- inner mold
- emitting element
- lead
- light emitting
- 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
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の製造方法に関し、特に発
光素子，受光素子を光透過性樹脂でモールドしたものを
更に遮光性樹脂でモールドする二重モールド構造のホト
インタラプタの製造方法に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a photointerrupter, and more particularly to a double mold in which a light emitting element and a light receiving element are molded with a light transmitting resin and further molded with a light shielding resin. The present invention relates to a method for manufacturing a photointerrupter having a structure.
従来、この種のホトインタラプタの製造方法は、第３
図（ａ）に示すように、発光素子３及び受光素子５をそ
れぞれ光透過性樹脂で覆って封入モールドし発光素子３
の発光軸及び受光素子の受光軸方向に所定の高さをもつ
凸部41E,41Fを備えた第１及び第２の内側モールド部4E,
4Fを形成し、これら第１及び第２の内側モールド部4E,4
Fを、スロット用突起部11を備えたモールド金型10に、
凸部41E,41Fの先端表面をスロット用突起部11の相対向
する面に接するようにして挿入し、第１及び第２の内側
モールド部4E,4Fの外側に遮光性樹脂を流し込んで外側
モールド部6Bを形成し、第２図（ｂ）に示すようなホト
インタラプタを形成する構成となっていた。Conventionally, a method for manufacturing this type of photointerrupter has been described in US Pat.
As shown in FIG. 3A, the light emitting element 3 and the light receiving element 5 are each covered with a light-transmitting resin and sealed and molded.
The first and second inner mold portions 4 E , which have convex portions 41 E and 41 F having predetermined heights in the light emitting axis direction and the light receiving axis direction of the light receiving element, respectively.
4 F was formed, the first and second inner mold part 4 E, 4
F into a mold 10 having a slot projection 11,
Insert the front end surfaces of the convex portions 41 E and 41 F so as to be in contact with the opposing surfaces of the slot protrusion 11, and apply a light-shielding resin to the outside of the first and second inner mold portions 4 E and 4 F. poured in to form the outer mold part 6 B, it has been a configuration which forms a photointerrupter as shown in FIG. 2 (b).
上述した従来のホトインタラプタの製造方法は、スロ
ット用突起部11を備えたモールド金型10に第１及び第２
の内側モールド部4E,4Fを挿入して外側モールド部6Bを
形成する構成となっているので、モールド金型10が複雑
になり、トランスファモールドが困難になるため製造コ
ストが高くなるという欠点がある。The above-described conventional method for manufacturing a photointerrupter includes the first and second molds 10 provided on a mold 10 having a projection 11 for a slot.
Since by inserting the inner mold part 4 E, 4 F has a configuration forming an outer mold part 6 B, becomes complicated molding die 10, that the manufacturing cost since the transfer molding becomes difficult higher There are drawbacks.
本発明の目的は、モールド金型の形状を単純化してト
ランスファモールドが容易になり、製造コストを低減す
ることができるホトインタラプタの製造方法を提供する
ことにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a method of manufacturing a photointerrupter, which can simplify a shape of a mold die, facilitate transfer molding, and reduce manufacturing costs.
本発明のホトインタラプタの製造方法は、第１のマウ
ントリードのマウント面に発光素子をマウントし、第１
の対極リードに前記発光素子の電極を接続した後、光透
過性樹脂により前記第１のマウントリード，対極リード
の所定の部分及び前記発光素子を覆って封入モールドし
前記発光素子の発光軸方向に所定の高さをもつ凸部を備
えた第１の内側モールド部を形成する工程と、第２のマ
ウントリードのマウント面に受光素子をマウントし、第
２の対極リードに前記受光素子の電極を接続した後、光
透過性樹脂により前記第２のマウントリード，対極リー
ドの所定の部分及び前記受光素子を覆って封入モールド
し前記受光素子の受光軸方向に所定の高さをもつ凸部を
備えた第２の内側モールド部を形成する工程と、前記発
光素子の発光軸と前記受光素子の受光軸とを一致させ前
記第１及び第２の内側モールド部の凸部の先端を対向さ
せて配置し、遮光性樹脂により前記第１及び第２の内側
モールド部全体を覆って封入モールドし外側モールド部
を形成する工程と、前記外側モールド部の前記第１及び
第２の内側モールド部間に、所定の高さを有するそれぞ
れの前記凸部の頂面部分を除去することにより所定の幅
のスロットを形成し、前記第１及び第２の内側モールド
部の頂面部分が除去された凸部を相対向して露出させる
工程とを含んで構成される。According to the method for manufacturing a photointerrupter of the present invention, a light emitting element is mounted on a mounting surface of a first mounting lead,
After connecting the electrode of the light emitting element to the counter electrode lead, the first mount lead, a predetermined portion of the counter electrode lead and the light emitting element are covered and molded with light-transmitting resin, and the light emitting element is sealed in the direction of the light emitting axis of the light emitting element. Forming a first inner mold portion having a convex portion having a predetermined height, mounting a light receiving element on a mounting surface of a second mounting lead, and mounting an electrode of the light receiving element on a second counter electrode lead; After the connection, a predetermined portion of the second mount lead, the predetermined portion of the counter electrode lead and the light receiving element are covered and molded by light transmitting resin, and a convex portion having a predetermined height in the light receiving axis direction of the light receiving element is provided. Forming the second inner mold part, and aligning the light emitting axis of the light emitting element with the light receiving axis of the light receiving element so that the tips of the convex parts of the first and second inner mold parts face each other. And shading A step of covering the entire first and second inner mold sections with resin and enclosing and molding to form an outer mold section, and a predetermined height between the first and second inner mold sections of the outer mold section. A slot having a predetermined width is formed by removing a top surface portion of each of the convex portions having the convex portions having the top surface portions of the first and second inner mold portions removed. And exposing.
次に、本発明の実施例について図面を参照して説明す
る。Next, embodiments of the present invention will be described with reference to the drawings.
第１図（ａ）〜（ｄ）はそれぞれ本発明の第１の実施
例を説明するための製造工程順に示したホトインタラプ
タの斜視図及び断面図である。FIGS. 1 (a) to 1 (d) are a perspective view and a sectional view of a photointerrupter shown in the order of manufacturing steps for explaining a first embodiment of the present invention.
まず、第１図（ａ）に示すように、第１のマウントリ
ード1Aのマウント面に発光素子３をマウントし、第１の
対極リード2Aに発光素子３の電極を接続した後、光透過
性樹脂により第１のマウントリード1A,対極リード2Aの
所定の部分及び発光素子３を覆って封入モールドし、発
光素子３の発光軸方向に所定の高さをもつ凸部41Aを備
えた第１の内側モールド部4Aを形成する。First, as shown in FIG. 1 (a), after the light-emitting element 3 is mounted on the mounting surface of the first mount lead 1 A, was connected to the electrodes of the light emitting element 3 to the first counter electrode lead 2 A, light A predetermined portion of the first mount lead 1 A , the counter electrode lead 2 A and the light emitting element 3 are covered and molded with a transparent resin to form a convex portion 41 A having a predetermined height in the light emitting axis direction of the light emitting element 3. forming a first inner mold part 4 a with.
また、第１図（ｂ）に示すように、第２のマウントリ
ード1Bのマウント面に受光素子５をマウントし、第２の
対極リード2Bに受光素子５の電極を接続した後、光透過
性樹脂により第２のマウントリード1B,対極リード2Bの
所定の部分及び受光素子５を覆って封入モールドし、受
光素子５の受光軸方向に所定の高さをもつ凸部41Bを備
えた第２の内側モールド部4Bを形成する。Further, as shown in Fig. 1 (b), after mounting the light-receiving element 5 to the mounting surface of the second mount lead 1 B, and connecting the electrodes of the light receiving element 5 to the second counter electrode lead 2 B, light A predetermined portion of the second mount lead 1 B and the counter electrode lead 2 B and the light receiving element 5 are covered with a transparent resin and molded by encapsulation, and a convex portion 41 B having a predetermined height in the light receiving axis direction of the light receiving element 5 is formed. The provided second inner mold part 4B is formed.
次に、第１図（ｃ）に示すように、発光素子３の発光
軸と受光素子５の受光軸とを一致させ第１及び第２の内
側モールド部4A,4Bの凸部41A,41Bの先端を対向させて配
置し、遮光性樹脂によりこれら第１及び第２の内側モー
ルド部4A,4B全体を覆って封入モールドし、外側モール
ド部６を形成する。Next, as shown in FIG. 1 (c), first and second inner mold part 4 A, 4 B of the convex portion 41 A to match the emission axis of the light emitting element 3 and the light receiving axis of the light receiving element 5 , and disposed opposite the tip of the 41 B, encapsulated mold covering the entire first and second inner mold part 4 a, 4 B by the light shielding resin, to form the outer mold part 6.
次に、第１図（ｄ）に示すように、外側モールド部６
の第１及び第２の内側モールド部4A,4B間に所定の幅の
スロット７を切削等により形成し、凸部41A,41Bを相対
向して露出させることにより所定のホトインタラプタが
形成される。Next, as shown in FIG.
The first and the second inner mold part 4 A, 4 slot 7 of a predetermined width between B formed by cutting or the like, a predetermined photointerrupter by exposing to face the protrusion 41 A, 41 B of Is formed.
このように、外側モールド部６を形成した後、スロッ
ト７を形成することにより、モールド金型に従来のよう
なスロット用突起部を設ける必要がなく、モールド金型
の形状が単純化しトランスファモールドが容易になる。In this manner, by forming the outer mold portion 6 and then forming the slot 7, there is no need to provide a projection for a slot in the mold as in the conventional case, the shape of the mold is simplified, and the transfer mold is simplified. It will be easier.
第２図（ａ）〜（ｃ）はそれぞれ本発明の第２の実施
例を説明するための製造工程順に示したホトインタラプ
タの斜視図、断面上面図及び断面側面図である。FIGS. 2 (a) to 2 (c) are a perspective view, a cross-sectional top view and a cross-sectional side view of a photointerrupter shown in the order of manufacturing steps for explaining a second embodiment of the present invention.
この実施例は、第１及び第２の内側モールド部4C,4D
の凸部41C,41Dを縦細に形成し、分解能の高いホトイン
タラプタを製造する場合に適用したものである。In this embodiment, the first and second inner mold sections 4 C and 4 D
The convex portion 41 C, 41 D are formed on TateHoso of, it is applied to the case of producing a high-resolution photo-interrupter.
以上説明したように本発明は、外側モールド部を形成
した後にスロットを形成する構成とすることにより、モ
ールド金型に従来のようなスロット用突起部を設ける必
要がないので、モールド金型の形状が単純化し、トラン
スファモールドが容易になり、従って製造コストを低減
することができる効果がある。As described above, the present invention employs a configuration in which the slot is formed after the outer mold portion is formed, so that it is not necessary to provide the projection for the slot in the mold as in the conventional case. However, there is an effect that transfer molding can be simplified and the manufacturing cost can be reduced.
第１図（ａ）〜（ｄ）はそれぞれ本発明の第１の実施例
を説明するための製造工程順に示したホトインタラプタ
の斜視図及び断面図、第２図（ａ）〜（ｃ）はそれぞれ
本発明の第２の実施例を説明するための製造工程順に示
したホトインタラプタの斜視図，断面上面図及び断面側
面図、第３図（ａ），（ｂ）は従来のホトインタラプタ
の製造方法を説明するための製造工程順に示したホトイ
ンタラプタ及びモールド金型の断面図である。 1A,1B……マウントリード、2A,2B……対極リード、３…
…発光素子、4A〜4F……内側モールド部、５……受光素
子、6,6A,6B……外側モールド部、7,7A,7B……スロッ
ト、10……モールド金型、11……スロット用突起部、41
A〜41F……凸部。FIGS. 1 (a) to 1 (d) are perspective views and sectional views of a photointerrupter shown in the order of manufacturing steps for explaining a first embodiment of the present invention, and FIGS. FIGS. 3A and 3B are a perspective view, a cross-sectional top view, and a cross-sectional side view of a photointerrupter shown in the order of manufacturing steps for explaining a second embodiment of the present invention. It is sectional drawing of the photo interrupter and the mold shown in order of the manufacturing process for demonstrating the method. 1 A , 1 B … Mount lead, 2 A , 2 B … Counter electrode lead, 3…
... light emitting element, 4 A to 4 F ...... inner mold part, 5 ...... light receiving element, 6,6 A, 6 B ...... outer mold unit, 7, 7 A, 7 B ...... slot 10 ...... Mold Mold, 11 ... Slot projection, 41
A ~41 F ...... convex portion.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭57−17187（ＪＰ，Ａ) 特開 昭63−67789（ＪＰ，Ａ) 特開 昭63−240082（ＪＰ，Ａ) 実開 昭64−48058（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) H01S 31/12 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-57-17187 (JP, A) JP-A-63-67789 (JP, A) JP-A-63-240082 (JP, A) 48058 (JP, U) (58) Fields investigated (Int. Cl. 6 , DB name) H01S 31/12
Claims (1)
素子をマウントし、第１の対極リードに前記発光素子の
電極を接続した後、光透過性樹脂により前記第１のマウ
ントリード、対極リードの所定の部分及び前記発光素子
を覆って封入モールドし前記発光素子の発光軸方向に所
定の高さを持つ凸部を備えた第１の内側モールド部を形
成する工程と、第２の前記マウントリードのマウント面
に受光素子をマウントし、第２の対極リードに前記受光
素子の電極を接続した後、光透過性樹脂により前記第２
のマウントリード、対極リードの所定の部分及び前記発
光素子を覆って封入モールドし前記受光素子の受光軸方
向に所定の高さを持つ凸部を備えた第２の内側モールド
部を形成する工程と、前記発光素子の発光軸と前記受光
素子の受光軸とを一致させ前記第１及び第２の内側モー
ルド部の凸部の先端を対向させて配置し、遮光樹脂によ
り前記第１及び第２の内側モールド部全体を覆って封入
モールドし外側モールド部を形成する工程と、前記外側
モールド部の前記第１及び第２の内側モールド部間に、
所定の高さを有するそれぞれの前記凸部の頂面部分が除
去されるような所定の幅のスロットを形成し、前記第１
及び第２の内部モールド部の頂面部分が除去された凸部
を相対向して露出させる工程とを含むことを特徴とする
ホトインタラプタの製造方法。1. A light-emitting element is mounted on a mounting surface of a first mount lead, an electrode of the light-emitting element is connected to a first counter electrode lead, and then the first mount lead and the counter electrode lead are made of a light transmitting resin. Forming a first inner mold portion having a convex portion having a predetermined height in a light emitting axis direction of the light emitting element by encapsulating and molding the predetermined portion and the light emitting element; and the second mount The light receiving element is mounted on the mounting surface of the lead, and the electrode of the light receiving element is connected to the second counter electrode lead.
Forming a second inner mold portion having a convex portion having a predetermined height in a light receiving axis direction of the light receiving element by covering and molding the mount lead, a predetermined portion of the counter electrode lead and the light emitting element. A light-emitting axis of the light-emitting element is aligned with a light-receiving axis of the light-receiving element, and tips of the convex portions of the first and second inner mold portions are arranged to face each other; Forming an outer mold portion by enclosing and molding the entire inner mold portion; and forming the outer mold portion between the first and second inner mold portions.
Forming a slot of a predetermined width such that a top surface portion of each of the projections having a predetermined height is removed;
And opposing and exposing the convex portions from which the top surface portion of the second inner mold portion has been removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30795289A JP2868255B2 (en) | 1989-11-27 | 1989-11-27 | Manufacturing method of photo interrupter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30795289A JP2868255B2 (en) | 1989-11-27 | 1989-11-27 | Manufacturing method of photo interrupter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03166774A JPH03166774A (en) | 1991-07-18 |
| JP2868255B2 true JP2868255B2 (en) | 1999-03-10 |
Family
ID=17975146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30795289A Expired - Fee Related JP2868255B2 (en) | 1989-11-27 | 1989-11-27 | Manufacturing method of photo interrupter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2868255B2 (en) |
-
1989
- 1989-11-27 JP JP30795289A patent/JP2868255B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03166774A (en) | 1991-07-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |