JPH03120629A - Optical pickup - Google Patents
Optical pickupInfo
- Publication number
- JPH03120629A JPH03120629A JP25903289A JP25903289A JPH03120629A JP H03120629 A JPH03120629 A JP H03120629A JP 25903289 A JP25903289 A JP 25903289A JP 25903289 A JP25903289 A JP 25903289A JP H03120629 A JPH03120629 A JP H03120629A
- Authority
- JP
- Japan
- Prior art keywords
- holder
- flexible substrate
- substrate
- land
- flexible
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 title claims description 21
- 239000000758 substrate Substances 0.000 claims abstract description 45
- 238000005476 soldering Methods 0.000 claims abstract description 5
- 229910000679 solder Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 241000252233 Cyprinus carpio Species 0.000 description 1
- 239000013070 direct material Substances 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
- H05K3/341—Surface mounted components
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、ディスクに光スポットを投影して記録再生を
行なう光ピツクアップに用いる。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is used for optical pickup in which recording and reproduction are performed by projecting a light spot onto a disk.
従来の技術
光ピツクアップと回路基板との配線は通常フレキシブル
基板が用いられる。光ピツクアップの電気部品は、大き
く受光素子、半導体レーザー、対物レンズ駆動装置等に
分けることができる。組立。2. Description of the Related Art A flexible substrate is usually used for wiring between an optical pickup and a circuit board. The electrical components of an optical pickup can be broadly divided into a light receiving element, a semiconductor laser, an objective lens driving device, and the like. assembly.
検査工程を考慮すると、対物レンズ駆動装置を別工程で
完成し、後で光ピツクアップの光学ブロックと電気結合
する方が良い。Considering the inspection process, it is better to complete the objective lens drive device in a separate process and electrically connect it to the optical block of the optical pickup later.
第６図に従来の光ピツクアップの電気配線の構成図であ
る。対物レンズ１はボビン２に固定されている。ボビン
２にフォーカスコイｌｖ３が巻装されており、さらに４
個のリング状トラッキングコイ／Ｉ／４を貼り付けてい
る。ボビン２の両側に貼り付けたボビン側基板６と、ホ
ルダー７に固定したフレキシブル基板８に設けた半田付
は用ランド５ａ。FIG. 6 is a block diagram of the electrical wiring of a conventional optical pickup. An objective lens 1 is fixed to a bobbin 2. Focus coil lv3 is wound on bobbin 2, and 4 more
Ring-shaped tracking carp/I/4 is attached. Soldering lands 5a are provided on the bobbin-side substrate 6 attached to both sides of the bobbin 2 and the flexible substrate 8 fixed to the holder 7.
８ａに、４本の金′属バネ６０両端を半田付けしており
、これによりボビン２を支持するとともに、フォーカス
コイｌｖ３と）ラッキングコイｌｖ４への電気結線も行
なっている。フレキシブル基板８はホルダー７に設けた
２つの爪部７ａによシ仮固定されておシ、最終的にはネ
ジ１０により磁気ヨーク（図示せず）に完全に固定され
る。フレキシブル基板は２枚の補強用紙フエノール基板
が貼り合わせられておシ、一端に４本端子１１がかしめ
られ半田デイプにより固定されている。以上の構成によ
る対物レンズ駆動装置は別工程にて組立完成後、検査さ
れる。１２は光学ブロック用フレキシブｐ基板であシ、
受光素子及び半導体レーザーの配線を行なう。Both ends of four metal springs 60 are soldered to 8a, thereby supporting the bobbin 2 and also providing electrical connections to the focusing coil lv3 and racking coil lv4. The flexible substrate 8 is temporarily fixed by two claws 7a provided on the holder 7, and finally completely fixed to a magnetic yoke (not shown) by screws 10. The flexible board is made up of two reinforcing paper phenol boards pasted together, and four terminals 11 are caulked to one end and fixed with solder dip. The objective lens drive device having the above configuration is inspected after assembly is completed in a separate process. 12 is a flexible P substrate for optical block;
Wire the photodetector and semiconductor laser.
光ピツクアップ完成工程にて対物レンズ駆動装置の端子
１１を光学ブロック用フレキシブル基板１２に半田付は
結線される。In the optical pickup completion process, the terminal 11 of the objective lens drive device is soldered and wired to the flexible substrate 12 for the optical block.
発明が解決しようとする課題
しかしながら上記従来の構成では、光ピツクアップの部
品として高価なフレキシブル基板を８と１２の２枚も必
要となり、光ピツクアップのコストが上がるという問題
を有していた。Problems to be Solved by the Invention However, the conventional configuration described above requires two expensive flexible substrates 8 and 12 as optical pickup components, resulting in an increase in the cost of optical pickup.
本発明は上記従来の問題点を解決するためになされたも
ので、簡単な構成によシフレキシプル基板を１枚廃止す
ることができ、低価格の光ピツクアップを提供すること
を目的とする。The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a low-cost optical pickup that has a simple structure and can eliminate one flexible board.
課題を解決するための手段
上記問題点を解決するために本発明の光ピツクアップは
、ホルダーに設けたピン状凸部に、フレキシブル基板に
設けた穴を圧入かん合して仮固定し、ホルダーに固定さ
れた基板のランドと、フレキシブル基板のランドを半田
ブリッジにて結線するものである。Means for Solving the Problems In order to solve the above problems, the optical pickup of the present invention temporarily fixes the flexible substrate by press-fitting the pin-shaped protrusion provided on the holder into the hole provided on the flexible substrate. Lands on a fixed board and lands on a flexible board are connected using a solder bridge.
作 用 上記構成により本発明の作用は次のようになる。For production With the above configuration, the effects of the present invention are as follows.
対物レンズ駆動装置が組立完成後、ホルダーに設けたピ
ン状凸部に、フレキシブル基板に設けた穴を圧入かん合
して仮固定し、ホルダーに固定された基板のランドと、
フレキシブル基板のランドを半田ブリッジにて結線する
ことにより、信頼性を低くすることなく、また自動組立
もでき、従来２枚必要であった高価なフレキシブル基板
を１枚廃止して、約２６円の直接材料費が低減でき、光
ピツクアップのコスト力を高めることができる。After the objective lens driving device is assembled, the pin-shaped convex part provided on the holder is press-fitted into the hole provided on the flexible substrate and temporarily fixed, and the land of the substrate fixed on the holder is fixed.
By connecting the lands of the flexible circuit board with solder bridges, automatic assembly is possible without reducing reliability, and one expensive flexible circuit board, which conventionally required two, is eliminated, resulting in a cost of approximately 26 yen. Direct material costs can be reduced and the cost effectiveness of optical pickup can be increased.
実施例
第１図は、本発明の一実施例における光ピツクアップの
電気部品の構成図、第２図はその分解斜視図−第３図、
第４図はホルダーに設けたピン状凸部とフレキシブル基
板の穴のかん合状態を説明するための図、第６図は対物
レンズ駆動装置の基板トフレキシブル基板の半田ブリッ
ジによる結線状態を示した図である。Embodiment FIG. 1 is a configuration diagram of electrical components of an optical pickup in an embodiment of the present invention, FIG. 2 is an exploded perspective view thereof, and FIG.
Figure 4 is a diagram to explain how the pin-shaped protrusion provided on the holder and the hole in the flexible board are engaged, and Figure 6 shows the connection state between the objective lens drive device's board and the flexible board by solder bridges. It is a diagram.
第１図、第２図を用いて構成部品について説明する。第
２図において、紙フエノールの基板１９は、ホルダー１
７に設けた２つの爪部１７ａにて仮固定された後、ネジ
１ｏにてホルダー１７とともに磁気ヨーク２ｏに固定さ
れる。２０ａはネジ１ｏをねじ込むためのネジ穴である
。２１ａ。The components will be explained using FIG. 1 and FIG. 2. In FIG. 2, the paper phenol substrate 19 is attached to the holder 1.
After being temporarily fixed by two claws 17a provided at 7, it is fixed to the magnetic yoke 2o together with the holder 17 by screws 1o. 20a is a screw hole into which the screw 1o is screwed. 21a.
２１ｂは磁気ヨーク２０に接着したマグネットである。21b is a magnet bonded to the magnetic yoke 20.
ポビン２の両側に接着固定した基板６と、基板１９に、
４本の金属バネ６の両端を半田付けすることにより、ポ
ビン２は支持される。さらにこの金属バネ６は、ポビン
２に巻装したフォーカスコイＩｖ３とトラッキングコイ
Ｉｖ４の通電も行なう。１７ｂはホルダー１７に設けた
ピン状凸部であシ、基板１９より飛び出している。この
ピン状凸部１７ｂに、フレキシブル基板１８に設けた穴
１ｓａ、１ａｂを圧入かん合してフレキシブル基板１８
を仮固定することができる。On the board 6 and the board 19 that are adhesively fixed to both sides of the pobbin 2,
The pobbin 2 is supported by soldering both ends of the four metal springs 6. Furthermore, this metal spring 6 also energizes the focus coil Iv3 and the tracking coil Iv4 wound around the pobbin 2. 17b is a pin-shaped protrusion provided on the holder 17, which protrudes from the substrate 19. The holes 1sa and 1ab provided in the flexible substrate 18 are press-fitted into the pin-shaped convex portions 17b to form the flexible substrate 18.
can be temporarily fixed.
第１図において、フレキシブル基板１８に設けたランド
と、基板１９に設けたランドを、横一列に並べた半田ブ
リッジ２２にて結線する。１８ａはフレキシブル基板１
８に設けた位置規制用のつなぎであシ、これにより、ピ
ン状凸部１７ｂとフレキシブル基板１８の２箇所の穴１
８ａ、１８ｂ（第２図）を簡単に位置合せできるように
している。In FIG. 1, the lands provided on the flexible substrate 18 and the lands provided on the substrate 19 are connected by solder bridges 22 arranged in a horizontal row. 18a is a flexible substrate 1
8 for position regulation, and thereby the two holes 1 in the pin-shaped protrusion 17b and the flexible substrate 18.
8a and 18b (FIG. 2) can be easily aligned.
第３図は、ホルダー１７のピン状凸部１７ｂと、フレキ
シブル基板１８の穴１８ｂの形状を示す平面図であり、
穴１８ｂの２箇所が、ピン状凸部１７ｂの径より狭めら
れておシ、圧入かん合するようになっている。FIG. 3 is a plan view showing the shapes of the pin-shaped protrusion 17b of the holder 17 and the hole 18b of the flexible substrate 18,
Two portions of the hole 18b are narrower than the diameter of the pin-shaped convex portion 17b so that they can be press-fitted together.
第４図は、そのかん合状態を示す断面図である。FIG. 4 is a sectional view showing the mated state.
ホルダー１７に設けたピン状凸部１７ｂは、基板１９の
面より飛び出しており、フレキシブル基板１８は図のよ
うにかん合し、フレキシブル基板１８の穴部１８ｂのエ
ッヂにより圧入後ははずれないようになる。The pin-shaped protrusion 17b provided on the holder 17 protrudes from the surface of the substrate 19, and the flexible substrate 18 is engaged as shown in the figure, and the edge of the hole 18b of the flexible substrate 18 prevents it from coming off after press-fitting. Become.
第６図は、基板１９とフレキシブル基板１８の結線状態
を示す図であり、図のように半田ブリッジ２２により結
線される為、信頼性が高い。FIG. 6 is a diagram showing the connection state between the board 19 and the flexible board 18. As shown in the figure, the connections are made by solder bridges 22, so the reliability is high.
以上のように本実施例によれば、対物レンズ駆動装置が
組立完成後、ホルダーに設けたピン状凸部に、フレキシ
ブル基板に設けた穴を圧入かん合して仮固定し、ホルダ
ーに固定された基板のランドと、フレキシブル基板のラ
ンドを半田ブリッジにて結線するものであり、自動組立
ができ信頼性も高く、かつ２枚必要であった高価なフレ
キシブル基板の１枚を廃止することができ、光ピツクア
ップをコストダウンできるのでその効果は大きい。As described above, according to this embodiment, after the objective lens driving device is assembled, it is temporarily fixed by press-fitting the hole provided in the flexible substrate into the pin-shaped convex portion provided in the holder, and then being fixed to the holder. The land of the printed circuit board and the land of the flexible circuit board are connected using a solder bridge.It can be assembled automatically, has high reliability, and eliminates the need for two expensive flexible circuit boards. The effect is great because it can reduce the cost of optical pickup.
発明の効果
本発明は、ホルダーに設けたピン状凸部に、フレキシブ
ル基板に設けた穴を圧入かん合してフレキシブル基板を
仮固定し、ホルダーに固定された基板のランドと、フレ
キシブル基板のランドと半田ブリッジにて結線するもの
であり、自動組立ができ信頼性も高く、かつ２枚必要で
あった高価なフレキシブル基板を１枚だけにでき、コス
トダウンできるという優れた効果の得ることのできる光
ピツクアップを実現できるものである。Effects of the Invention The present invention temporarily fixes a flexible substrate by press-fitting a hole provided in a flexible substrate into a pin-shaped convex portion provided on a holder, and connects the land of the substrate fixed to the holder with the land of the flexible substrate. The wires are connected using a solder bridge, which allows for automatic assembly and high reliability.It also has the excellent effect of reducing costs by reducing the need for two expensive flexible boards to just one. This makes it possible to realize optical pickup.
第１図は本発明の一実施例における光ピツクアップの電
気部品の構成図、第２図はその分解斜視図、第３図、第
４図及び第５図はその細部を説明するための平面図、断
面図及び側面図、第６図は従来の光ピツクアップの電気
部品の構成図である。
１・・・・・・対物レンズ、２・・・・・・ボビン、３
・・・・・・フォーカスコイル、４・・・・・・トラッ
キングコイル、５・・・・・・ボビン側基板、６・・・
・・・金属バネ、１ｏ・・・・・・ネジ、１７・・・・
・・ホルダー１１１７ｂ・・・・・・ピン状凸部、１８
・・・・・・フレキシブル基板、１ａａ、１ａｂ・・・
・・・穴、１９・・・・・・基板、２２・・・・・・半
田ブリッジ。Fig. 1 is a configuration diagram of electrical components of an optical pickup in an embodiment of the present invention, Fig. 2 is an exploded perspective view thereof, and Figs. 3, 4, and 5 are plan views for explaining the details. , a sectional view and a side view, and FIG. 6 is a configuration diagram of electrical components of a conventional optical pickup. 1...Objective lens, 2...Bobbin, 3
...Focus coil, 4...Tracking coil, 5...Bobbin side board, 6...
...Metal spring, 1o...Screw, 17...
...Holder 1117b...Pin-shaped protrusion, 18
...Flexible board, 1aa, 1ab...
... Hole, 19 ... Board, 22 ... Solder bridge.
Claims (1)
したコイルと、ボビンを支持しかつ前記コイルの通電を
行なう複数の金属バネと、前記金属バネを半田付け固定
した基板と、この基板を保持するためのホルダーと、前
記コイルへの通電用リードであるフレキシブル基板とを
有し、前記ホルダーにピン状凸部を設け、このホルダー
に固定手段にて前記基板を固定し、この基板面より凸で
ある前記ピン状凸部に、フレキシブル基板に設けた穴を
圧入かん合してフレキシブル基板を仮固定し、前記基板
のランドと、フレキシブル基板のランドを半田ブリッジ
にて結線したことを特徴とする光ピックアップ。An objective lens, a bobbin that holds the objective lens, a coil wound around the bobbin, a plurality of metal springs that support the bobbin and energize the coils, a substrate to which the metal springs are fixed by soldering, and this substrate. The holder has a holder for holding the coil, and a flexible substrate that is a lead for energizing the coil, the holder is provided with a pin-shaped protrusion, the substrate is fixed to the holder by a fixing means, and The flexible substrate is temporarily fixed by press-fitting a hole provided in the flexible substrate into the convex pin-shaped convex portion, and the land of the substrate and the land of the flexible substrate are connected by a solder bridge. optical pickup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1259032A JP2712640B2 (en) | 1989-10-04 | 1989-10-04 | Optical pickup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1259032A JP2712640B2 (en) | 1989-10-04 | 1989-10-04 | Optical pickup |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03120629A true JPH03120629A (en) | 1991-05-22 |
| JP2712640B2 JP2712640B2 (en) | 1998-02-16 |
Family
ID=17328391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1259032A Expired - Fee Related JP2712640B2 (en) | 1989-10-04 | 1989-10-04 | Optical pickup |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2712640B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015041658A (en) * | 2013-08-21 | 2015-03-02 | スタンレー電気株式会社 | Flexible substrate and its temporary fixation structure |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4851786B2 (en) * | 2005-12-02 | 2012-01-11 | 株式会社リコー | Measuring method of micro area potential of photoconductor |
-
1989
- 1989-10-04 JP JP1259032A patent/JP2712640B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015041658A (en) * | 2013-08-21 | 2015-03-02 | スタンレー電気株式会社 | Flexible substrate and its temporary fixation structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2712640B2 (en) | 1998-02-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |