KR920000850Y1 - Head drum operating motor for vtr - Google Patents
Head drum operating motor for vtr Download PDFInfo
- Publication number
- KR920000850Y1 KR920000850Y1 KR2019870020146U KR870020146U KR920000850Y1 KR 920000850 Y1 KR920000850 Y1 KR 920000850Y1 KR 2019870020146 U KR2019870020146 U KR 2019870020146U KR 870020146 U KR870020146 U KR 870020146U KR 920000850 Y1 KR920000850 Y1 KR 920000850Y1
- Authority
- KR
- South Korea
- Prior art keywords
- drum
- magnet
- coil
- vtr
- attached
- Prior art date
Links
- 239000000758 substrate Substances 0.000 claims description 4
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/60—Guiding record carrier
- G11B15/61—Guiding record carrier on drum, e.g. drum containing rotating heads
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/52—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with simultaneous movement of head and record carrier, e.g. rotation of head
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/278—Surface mounted magnets; Inset magnets
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Brushless Motors (AREA)
Abstract
내용 없음.No content.
Description
제1도는 일반적인 헤드드럼 및 구동모우터의 종단면도.1 is a longitudinal cross-sectional view of a general head drum and drive motor.
제2도는 종래의 헤드드럼 일체형 구동모우터의 종단면도.2 is a longitudinal sectional view of a conventional head drum integrated drive motor.
제3도는 본 고안 헤드드럼 일체형 구동모우터의 종단면도.Figure 3 is a longitudinal sectional view of the head drum integrated drive motor of the present invention.
제4도는 본 고안에 이용되는 회전자 마그네트와 FG(frequency Generator)마그네트가 일체로 된 구동부마그네트의 평면도.4 is a plan view of a drive magnet in which a rotor magnet and a frequency generator (FG) magnet are used in the present invention.
제5도는 본 고안에 이용되는 고정자 코일 및 FG코일이 설치된 고정부기판의 평면도.5 is a plan view of a stator coil and a stator part substrate having a stator coil used in the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for the main parts of the drawings
1 : 회전축 2 : 회전트랜스1: rotation shaft 2: rotation transformer
3 : 고정트랜스 4 : 회전자마그네트론3: fixed transformer 4: rotor magnetron
5 : FG마그네트 M : 마그네트5: FG magnet M: Magnet
6 : FG코일 7 : 고정자코어6: FG coil 7: Stator core
8 : 고정자코일 9 : 헤드8 stator coil 9 head
10 : 상부드럼 11 : 하부드럼10: upper drum 11: lower drum
12 : 회전자마그네트홀더 13 : 홀소자12: rotor magnet holder 13: Hall element
본 고안은 VTR의 헤드드럼 구동모우터에 관한 것으로, 특히 회전축상에 축설되는 상하부 헤드드럼내에, 회전자 마그네트와 주파수 발생 마그네트를 일체로 형성한 구동부, 및 주파수 발생 코일과 홀소자를 가진 고정자코일을 부착한 고정부를 설치하여서 된 VTR의 헤드드럼 일체형 모우터에 관한 것이다.The present invention relates to a head drum drive motor of a VTR. In particular, a drive part in which a rotor magnet and a frequency generating magnet are integrally formed in upper and lower head drums arranged on a rotating shaft, and a stator coil having a frequency generating coil and a hall element is provided. It relates to a head drum integrated motor of a VTR provided by providing an attached fixing part.
일반적으로 VTR의 기록. 재생용 헤드드럼은 제1도에 도시한 바와같이 회전축 (1)상에 회전트랜스(2) 및 헤드(9)를 가진 상부드럼(10)에 축설되고, 그 하부에 고정트랜스(3)를 가진 하부드럼(11)이 축설되며, 이 하부드럼(11)의 하부에는 회전자하우징(14)내부에 고정자코어(7), 회전자 마그네트(4), FG코일(6)이 설치된 모우터를 축설하여서 된 것으로, 이와 같이 된 VTR의 헤드드럼은 회전축의 길이가 길어지기 때문에 회전의 안정도가 좋지 않을 뿐만 아니라 데크 하부로 모우터부가 많이 돌출되어 기기의 소형화를 기할 수 없고 조립시 공정수 및 조정포인트가 많으므로 작업공정이 복잡하여 생산성을 저하시키게 되는 문제점을 가지고 있었다.Generally recorded VTR. The reproducing head drum is constructed in the upper drum 10 having the rotating transformer 2 and the head 9 on the rotating shaft 1 as shown in FIG. 1, and having the fixed transformer 3 in the lower portion thereof. A lower drum 11 is built up, and a lower motor 11 includes a motor in which a stator core 7, a rotor magnet 4, and an FG coil 6 are installed inside the rotor housing 14. Since the head drum of the VTR has a long rotation axis, the rotational stability is not good, and the motor part protrudes a lot from the lower part of the deck, thus making it impossible to miniaturize the device. There are a lot of problems because the work process is complicated and the productivity is lowered.
따라서 이와같은 문제점을 해결하기 위하여 제2도에 도시한 바와같이 회전축 (1)상에 축착되는 상하부드럼(10)(11)의 내에 구동부를 설치하되 헤드(9)를 가진 상부드럼(10)에는 FG마그네트(5)를 부착하고 하부드럼(11)에는 고정자코어(7), FG코일(6)을 부착하여 구성한 경우도 있다. 그러나 이와같이 된 종래의 헤드드럼 일체형 구동모우터는 드럼의 높이를 줄일 수 있어 기기의 소형화를 기할 수 있고 회전 안정도를 향상시킬 수는 있으나, 브러쉬리스 모우터(Brushless motor)를 사용하므로 이 또한 드럼구동모우터의 부품 간소화 및 조립공정에는 단순화를 기할 수 없는 문제점을 가지고 있었다.Therefore, in order to solve this problem, as shown in FIG. 2, a driving unit is installed in the upper and lower drums 10 and 11 that are condensed on the rotating shaft 1, but the upper drum 10 having the head 9 In some cases, the FG magnet 5 is attached and the lower drum 11 is attached to the stator core 7 and the FG coil 6. However, such a conventional head drum integrated drive motor can reduce the height of the drum, thereby minimizing the size of the machine and improving the rotational stability. However, since the brushless motor is used, the drum driving motor is also used. The parts simplification and assembly process of the site had a problem that can not be simplified.
본 고안은 상기와 같은 문제점을 해결하기 위하여 회전축에 축설되는 상하부 헤드드럼에 있어서, 헤드가 장차된 상부드럼에는 회전마그네트 홀더에 8극으로 회전마그네트와 48극으로 된 FG마그네트를 일체 형성하여 부착하고, 하부드럼에는 코일이 감긴 6극인 고장자코일과 3개의 홀소자 및 FG코일을 부착 이를 데크에 장착한후에도 데크 밑으로 돌출되는 부위를 없애 부피가 작고 형상의 간소화를 기할 수 있게 한 것으로, 이하 첨부된 도면에 의하여 본 고안을 상세히 설명하면 다음과 같다.The present invention is to solve the above problems in the upper and lower head drums arranged on the axis of rotation, the head is mounted on the upper drum, the rotating magnet holder 8 poles of the rotating magnet and 48 poles formed integrally attached and attached to 8 poles In the lower drum, a coil with 6 poles wound with coil, three Hall elements, and FG coil are attached to the deck, so that the parts protruding under the deck are eliminated even after they are attached to the deck. Referring to the present invention in detail by the drawings as follows.
회전축(1)상에 축착되는 상부드럼(10)에는 FG마그네트를 부착하고 하부드럼 (11)에는 고정자코어와 FG코일을 부착하여서 된 VTR의 헤드드럼 구동모우터에 있어서, 상기 상부드럼(10)에는 도너스 형상의 회전마그네트홀더(12)를 취부하되 이 회전마그네트홀더(12)에는 제4도에 도시한 바와같이 원판상의 내측에 8극을 교호로 형성한 회전마그네트(4)와 외측에는 48극을 교호로 형성한 FG마그네트(5)가 일체로 형성된 마그네트(M)를 부착시키고, 하부드럼(11)에는 제5도에 도시한 바와같이 기판(6a)상에 상기 FG마그네트(5)와 대응하는 위치에 그 외주면에 소정의 거리를 두고 6극을 형성한 고정자 코일(8)과 3개의 홀소자(13) 및 FG코일(6)을 부착하여서 된 것으로, 도면중 미설명부호 14는 회전자하우징, 15는 회전자브러쉬, 16는 베어링, 17은 모우터, 18은 PG (Pulse Generator)센서이다.In the head drum drive motor of the VTR, the FG magnet is attached to the upper drum 10 and the lower drum 11 is attached to the stator core and the FG coil. A donor-shaped rotating magnet holder 12 is mounted, and the rotating magnet holder 12 has a rotating magnet 4 alternately formed with eight poles on the inner side of the disk as shown in FIG. Is attached to the magnet M formed integrally with the FG magnet 5 formed alternately, and the lower drum 11 corresponds to the FG magnet 5 on the substrate 6a as shown in FIG. The stator coil 8 and the three Hall elements 13 and the FG coil 6 having six poles formed at a predetermined distance on the outer circumferential surface thereof are attached to each other. Housing, 15 is rotor brush, 16 is bearing, 17 is motor, 18 is PG (Pulse Generator) sensor to be.
상기와 같이 구성된 본 고안의 작용효과를 설명하면 다음과 같다.Referring to the effect of the present invention configured as described above are as follows.
고정자가 되는 하부드럼(11)에 부착된 고정자코일(8)에 전류를 인가시키면 고정자코일(8)에 N.S극 교번인가 되게 되고 이 전자력은 이와 대응되는 위치에 있는 상부드럼(10)의 회전자마그네트(4)에 형성된 N극 S극에 유기되어 같은 극끼리는 척력이 작용하여 상부드럼(10)의 마그네트(M)는 회전을 하게 되어 상부드럼(10)을 회전시키게 되는 것이다.When a current is applied to the stator coil 8 attached to the lower drum 11 to become the stator, NS poles are alternately applied to the stator coil 8, and the electromagnetic force is the rotor of the upper drum 10 at the corresponding position. The same poles are induced in the N-pole S-pole formed in the magnet 4, the repulsive force is applied to the magnet (M) of the upper drum 10 is to rotate the upper drum (10).
이때 상부드럼(10)의 위치검출은 3개의 홀소자(13)를 이용하여 자극의 위치를 감지한 후 이 감지된 신호에 의해 고정자의 FG코일(6)과 고정자코일(8)의 전류를 스위칭시켜 상부드럼(10)의 회전을 제어하도록 되어 있다. 또한 FG마그네트(5)로 회전하게 되어 이에 따라 FG코일(6)에 전류가 유기되게 되고 이 유기된 전류에 의해 상부드럼 (10)의 회전속도를 감지하여 속도를 제어하도록 되어 있다.At this time, the position detection of the upper drum 10 detects the position of the magnetic pole using the three Hall elements 13 and then switches the currents of the stator coil 8 and the stator coil 8 according to the detected signal. The rotation of the upper drum 10 is controlled. In addition, the FG magnet 5 is rotated so that the current is induced in the FG coil 6, and the speed is controlled by sensing the rotational speed of the upper drum 10 by the induced current.
이상에서 설명한 바와같이 본 고안은 회전축상에 축설되는 상부드럼에는 FG마그네트와 회전자마그네트를 일체로 한 마그네트(M)를 형성하여 장착하여 구동부를 구성하고, 하부드럼에는 원판형 FG코일기판에 FG코일을 그 외주면에 설치하는 한편, 3개의 홀소자를 가진 고정자코일이 부착된 원판형 기판을 장착하여 고정부를 구성하였기 때문에 종래의 고정자 코일 또는 회전자 마그네트를 부착할 때에 비하여 전체적으로 크기가 작아져 데크 밑으로 돌출되는 부분등을 제거하여 그 공간을 활용할 수 있는 등 소형화를 기할 수 있고 또한 부품의 간소화가 이루어지므로 조립공정이 간편하여 제조단가의 절감을 꾀할 수 있는 효과가 있다.As described above, the present invention constitutes a driving unit by forming and mounting a magnet (M) in which an FG magnet and a rotor magnet are integrally formed on an upper drum, which is constructed on a rotating shaft, and an FG on a disc-shaped FG coil substrate on a lower drum. The coil is installed on the outer circumference, and the fixed part is constructed by mounting a disc-shaped board with stator coils having three Hall elements, and thus the overall size is smaller than that of a conventional stator coil or rotor magnet. It is possible to reduce the size of the projecting part by removing the parts protruding from the bottom, and also to simplify the parts, thereby simplifying the assembly process, thereby reducing the manufacturing cost.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019870020146U KR920000850Y1 (en) | 1987-11-20 | 1987-11-20 | Head drum operating motor for vtr |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019870020146U KR920000850Y1 (en) | 1987-11-20 | 1987-11-20 | Head drum operating motor for vtr |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR890011459U KR890011459U (en) | 1989-07-13 |
| KR920000850Y1 true KR920000850Y1 (en) | 1992-01-31 |
Family
ID=19269621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019870020146U KR920000850Y1 (en) | 1987-11-20 | 1987-11-20 | Head drum operating motor for vtr |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR920000850Y1 (en) |
-
1987
- 1987-11-20 KR KR2019870020146U patent/KR920000850Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR890011459U (en) | 1989-07-13 |
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