KR0135909Y1 - A cover structure of optical pickup actuator - Google Patents
A cover structure of optical pickup actuator Download PDFInfo
- Publication number
- KR0135909Y1 KR0135909Y1 KR2019950041724U KR19950041724U KR0135909Y1 KR 0135909 Y1 KR0135909 Y1 KR 0135909Y1 KR 2019950041724 U KR2019950041724 U KR 2019950041724U KR 19950041724 U KR19950041724 U KR 19950041724U KR 0135909 Y1 KR0135909 Y1 KR 0135909Y1
- Authority
- KR
- South Korea
- Prior art keywords
- cover
- lens holder
- coil
- focusing
- tracking
- Prior art date
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Classifications
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/121—Protecting the head, e.g. against dust or impact with the record carrier
Abstract
본 고안은 광픽업 액츄에이터의 커버구조에 관한 것으로서, 기존에 조립되는 커버의 구조를 개선하여 트랙킹 코일 및 포커싱 코일이 감겨지지는 렌즈홀더를 수용하는 요크와 일체화하여 조립공정수 및 재료비를 절감할 수 있도록 한 것으로, 이를위해 본 고안은 광픽업 액츄에이터(10)의 베이스 픽업(20)에 트랙킹 코일(60) 및 포커싱 코일(50)이 권선되어 설치되는 렌즈홀더(70)에 이물질 투입에 대한 광학계 및 자기회로의 손상을 방지하기 위해 결합되는 커버(80)에 있어서, 상기 커버(80)의 저면에 상기 렌즈홀더(70)와 트랙킹 및 포커싱 조작을 하는 영구자석(80)이 부설되기 위한 격판(82)이 형성되어 있고, 그 상측 소정위치에 소정직경의 결합공(81)이 복수개 형성되어 베이스 픽업(20)에 형성되는 체결공(21)에 체결부재(90)로 나삽되어 구성된 것이다.The present invention relates to a cover structure of an optical pick-up actuator, and improves the structure of the cover, which is assembled in the past, integrated with the yoke that accommodates the lens holder in which the tracking coil and the focusing coil are wound, thereby reducing the number of assembly processes and material costs. To this end, the present invention is an optical system for the introduction of the foreign material to the lens holder 70 is wound around the tracking coil 60 and the focusing coil 50 to the base pickup 20 of the optical pickup actuator 10 and In the cover 80 coupled to prevent damage to the magnetic circuit, a diaphragm 82 for laying the permanent magnet 80 for tracking and focusing the lens holder 70 on the bottom surface of the cover 80. ) Is formed, and a plurality of coupling holes 81 having a predetermined diameter are formed at predetermined positions on the upper side thereof, and the coupling holes 90 are inserted into the coupling holes 21 formed in the base pickup 20.
Description
제1도는 종래 광픽업 액츄에이터를 나타낸 분해사시도.1 is an exploded perspective view showing a conventional optical pickup actuator.
제2도는 본 고안인 커버를 나타낸 사시도.2 is a perspective view showing a cover of the present invention.
제3도는 본 고안의 결합상태를 예시한 측단면도.Figure 3 is a side cross-sectional view illustrating a coupling state of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 액츄에이터 20 : 베이스 픽업10: actuator 20: base pickup
21 : 체결공 50 : 포커싱 코일21 fastener 50: focusing coil
60 : 트랙킹 코일 70 : 렌즈홀더60: tracking coil 70: lens holder
80 : 커버 81 : 격판80: cover 81: diaphragm
82 : 결합공 90 : 체결부재82: coupling hole 90: fastening member
본 고안은 광픽업 액츄에이터의 커버구조에 관한 것으로서, 좀더 구체적으로는 기존에 조립되는 커버의 구조를 개선하여 트랙킹 코일 및 포커싱 코일이 감겨지지는 렌즈홀더를 수용하는 요크와 일체화하여 조립공정수 및 재료비를 절감할 수 있도록 한 광픽업 액츄에이터의 커버구조에 관한 것이다.The present invention relates to a cover structure of an optical pick-up actuator, and more specifically, to improve the structure of the cover that is previously assembled, to integrate with the yoke for accommodating the lens holder to which the tracking coil and the focusing coil are wound, the assembly process number and material cost It relates to a cover structure of the optical pickup actuator to reduce the cost.
일반적으로 광픽업 액츄에이터는 콤팩트 디스크 플레이어의 내측에 설치되는 드라이브 샤시에 가이드축과 함께 설치되어 플레이되는 콤팩트 디스크상에 기록면을 읽어 화상 및 음향을 재생신호로 변환시켜주는 장치이다.In general, an optical pickup actuator is an apparatus that converts an image and a sound into a reproduction signal by reading a recording surface on a compact disc that is installed with a guide shaft in a drive chassis installed inside the compact disc player.
종래에는 첨부도면 제1도에서 나타낸 바와 같이, 광픽업 액츄에이터(1)의 베이스 픽업(2) 상측에 결합되며 상면에 소정높이의 격판(3a)을 갖는 요크(3)와, 상기 격판(3a)에 영구자석(4)이 설치되고, 이 영구자석(4)의 사이에 연부에 포커싱 코일(5) 및 트랙킹 코일(6)이 권선된 렌즈홀더(7)와, 상기 렌즈홀더(7)의 자기회로에 이물질 유입을 방지하기 위해 상측에 결합되는 커버(8)로 설치되어 구성된 것이다.Conventionally, as shown in FIG. 1 of the accompanying drawings, a yoke 3 coupled to an upper side of the base pickup 2 of the optical pickup actuator 1 and having a diaphragm 3a of a predetermined height on the upper surface thereof, and the diaphragm 3a. The permanent magnet 4 is installed in the lens holder, the lens holder 7 having the focusing coil 5 and the tracking coil 6 wound around the permanent magnet 4, and the magnet of the lens holder 7; The cover 8 is configured to be installed on the upper side to prevent foreign matter from entering the circuit.
상기와 같이 구성되는 종래의 광픽업 액츄에이터(1)는 조립과정 중 베이스 픽업(2), 요크(3), 트랙킹 코일(6) 및 포커싱 코일(5)이 권선된 렌즈홀더(7)등이 순차적으로 조립되고 난후, 이물질 투입에 대한 광학계 및 자기회로의 손상을 방지하기 위해 별도의 커버(8)를 결합시켜야 하므로, 불필요한 작업공정수로 작업성이 좋지않으며, 커버(8)를 단일부품으로 제작해야 하는 비경제적인 문제점이 있었다.In the conventional optical pickup actuator (1) configured as described above, the base pickup (2), the yoke (3), the tracking coil (6) and the lens holder (7) on which the focusing coil (5) is wound during the assembly process After assembly, the cover 8 must be combined to prevent damage to the optical system and the magnetic circuit against the input of foreign matters, so the workability is not good due to unnecessary work processes, and the cover 8 is manufactured as a single part. There was an uneconomic problem that had to be done.
본 고안은 상기와 같이 제반되는 종래의 문제점을 감안하여 안출한 것으로, 기존에 요크에 조립되는 커버의 구조를 개선하여 트랙킹 코일 및 포커싱 코일이 감겨지지는 렌즈홀더를 수용하는 요크와 일체화하여 조립공정수 및 재료비를 절감할 수 있도록 하는데 그 목적이 있는 것이다.The present invention has been made in view of the above-mentioned conventional problems, and the assembly process is integrated with the yoke that accommodates the lens holder to which the tracking coil and the focusing coil are wound by improving the structure of the cover assembled to the yoke. The purpose is to reduce water and material costs.
상기 목적을 달성하기 위한 본 고안에 의하면, 광픽업 액츄에이터의 베이스 픽업에 트랙킹 코일 및 포커싱 코일이 권선되어 설치되는 렌즈홀더에 이물질투입에 대한 광학계 및 자기회로의 손상을 방지하기 위해 결합되는 커버에 있어서, 상기 커버의 저면에 상기 렌즈홀더와 트랙킹 및 포커싱 조작을 하는 영구자석이 부설되기 위한 격판이 형성되어 있고, 그 상측 소정위치에 소정직경의 결합공이 복수개 형성되어 베이스 픽업에 형성되는 체결공에 체결부재로 나삽되는 광픽업 액츄에이터의 커버구조가 제공된다.According to the present invention for achieving the above object, in the cover coupled to prevent the damage of the optical system and magnetic circuit to the foreign material input to the lens holder is installed in the tracking coil and the focusing coil is wound around the base pickup of the optical pickup actuator A diaphragm is formed on the bottom of the cover to form a permanent magnet for tracking and focusing the lens holder, and a plurality of coupling holes having a predetermined diameter are formed at a predetermined position on the upper side thereof to be fastened to a fastening hole formed in the base pickup. A cover structure of an optical pickup actuator that is threaded into the member is provided.
이하, 본 고안을 일실시예로 도시한 첨부도면 제2도 및 제3도를 참고로하여 더욱 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail with reference to FIGS. 2 and 3 of the accompanying drawings.
첨부도면 제2도는 본 고안인 커버를 나타낸 사시도이고, 제3도는 본 고안의 결합상태를 예시한 측단면도로, 베이스 픽업(20)에 트랙킹 코일(60) 및 포커싱 코일(50)이 권선되어 설치되는 렌즈홀더(70)측으로 이물질 투입에 대한 광학계 및 자기회로의 손상을 방지하기 위해 결합되는 광픽업 액츄에이터(10)의 통상의 커버(80)에 있어서, 상기 커버(80)의 상면 소정위치에 소정직경을 갖는 결합공(81)을 형성하고, 저면에는 소정두께를 갖는 격판(82)을 형성하되, 상기 격판(82)의 내측 일면에 트랙킹 및 포커싱 조작을 돕는 영구자석(40)이 대향되게 부설되고, 상기 영구자석(40)사이에 상기 렌즈홀더(70)가 안내되어 미도시된 와이어와 홀더겔(GAL)에 의해 지지되며 상기 결합공(81)과 베이스 픽업(20)의 상면 소정위치에 형성되는 체결공(21)에 체결부재(90)로 나삽되어 구성된다.2 is a perspective view illustrating a cover of the present invention, and FIG. 3 is a side cross-sectional view illustrating a coupling state of the present invention, in which a tracking coil 60 and a focusing coil 50 are wound around the base pickup 20. In the conventional cover 80 of the optical pickup actuator 10 coupled to prevent the damage of the optical system and the magnetic circuit against the introduction of foreign matter to the lens holder 70 side, the predetermined position at the predetermined position on the upper surface of the cover 80 A coupling hole 81 having a diameter is formed, and a diaphragm 82 having a predetermined thickness is formed on a bottom thereof, and a permanent magnet 40 is disposed to face the inner side of the diaphragm 82 to assist tracking and focusing operations. The lens holder 70 is guided between the permanent magnets 40 and supported by a wire and a holder gel (GAL), not shown, at a predetermined position on the upper surface of the coupling hole 81 and the base pickup 20. It is screwed into the fastening member 90 to the fastening hole 21 to be formed It is.
상기와 같이 구성된 본 고안의 작용 및 효과를 설명하면 다음과 같다.Referring to the operation and effects of the present invention configured as described above are as follows.
렌즈홀더(70)의 외연부에 포커싱 코일(50)을 권선(捲線)하고, 이 포커싱 코일(50)의 양측 외곽지게 트랙킹 코일(60)을 권선시켜 렌즈홀더(70)를 금속재로 제작된 커버(80)의 저면에 소정간격을 두고 형성시킨 격판(82)에 영구자석(40)을 장입시켜 본딩하여 고정시켜 준다.The focusing coil 50 is wound around the outer edge of the lens holder 70, and the tracking coil 60 is wound around the outer side of the focusing coil 50 so that the lens holder 70 is made of metal. The permanent magnet 40 is charged and bonded to the diaphragm 82 formed at a predetermined interval on the bottom surface of the 80.
그리고, 상기 영구자석(40) 사이에는 렌즈홀더(70)에 권선된 포커싱 코일(50) 및 트랙킹 코일(60)과 연설되게 미도시된 와이어와 홀더겔로 지지시켜 피씨비(PCB) 서스펜션(도면에서 생략함)에 연결하여 렌즈홀더(70)가 상기 격판(82)사이에 떠있는 상태 즉, 트랙킹 및 포커싱 조절가능하게 고정시켜 준다.In addition, the permanent magnet 40 is supported by a focusing coil 50 and a tracking coil 60 wound around the lens holder 70 with a wire and a holder gel not shown so that the PCB suspension (in the drawing) The lens holder 70 is floating between the diaphragms 82, that is, the tracking and focusing are adjustable.
상기와 같이 커버(80)의 저면측 내부로 렌즈홀더(70)가 설치된 상태에서 상기 커버(80)의 상면에 복수개 형성시킨 결합공(81)과 상기 베이스 픽업(20)의 상면에 복수개 형성시킨 체결공(21)과 일치시켜 체결부재(90)로 나삽시켜 상기 커버(80)를 고정시켜 광픽업 액츄에이터(10)를 완성한다.As described above, in the state in which the lens holder 70 is installed inside the bottom surface side of the cover 80, a plurality of coupling holes 81 formed in the upper surface of the cover 80 and the upper surface of the base pickup 20 are formed. The optical pickup actuator 10 is completed by inserting the fastening member 90 into the fastening member 90 so as to fix the cover 80.
상기와 같이 조립되는 렌즈홀더(70)는 회전되는 콤팩트 디스크의 기록면에 대해 렌즈홀더(70)를 좌.우로 조정하는 트랙킹 및 상.하로 조절되게 하는 포커싱 조절하여 종래와 동일하게 동작시켜 콤팩트 디스크를 재생시킬 수 있게되는 것이다.The lens holder 70 assembled as described above is operated in the same manner as the conventional one by adjusting the tracking to adjust the lens holder 70 to the left and right and the focusing to adjust the lens holder 70 to the recording surface of the compact disk to be rotated. You can play it.
따라서, 상기와 같이 조립되는 본 고안은 종래 렌즈홀더를 고정하는 요크의 기능을 커버에 일체화시키므로써, 별도의 요크부품을 절감할 수 있게되고, 아울러 조립공정도 용이하여 작업성 및 생산성을 향상시킬 수 있게되는 매우 유용한 고안이다.Therefore, the present invention, assembled as described above, by integrating the function of the yoke for fixing the conventional lens holder to the cover, it is possible to reduce the separate yoke parts, and also to facilitate the assembly process to improve workability and productivity. It is a very useful design.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019950041724U KR0135909Y1 (en) | 1995-12-15 | 1995-12-15 | A cover structure of optical pickup actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019950041724U KR0135909Y1 (en) | 1995-12-15 | 1995-12-15 | A cover structure of optical pickup actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970045985U KR970045985U (en) | 1997-07-31 |
| KR0135909Y1 true KR0135909Y1 (en) | 1999-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019950041724U KR0135909Y1 (en) | 1995-12-15 | 1995-12-15 | A cover structure of optical pickup actuator |
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| KR (1) | KR0135909Y1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100403928B1 (en) * | 2001-07-27 | 2003-10-30 | 삼성전기주식회사 | One body type optical pick-up actuator |
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1995
- 1995-12-15 KR KR2019950041724U patent/KR0135909Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
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| KR970045985U (en) | 1997-07-31 |
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