公开(公告)号：WO1988002978A1

公开(公告)日：1988-04-21

申请号：PCT/JP1987000801

申请日：1987-10-19

Applicant: FANUC LTD ,  FUJIOKA, Yoshiki ,  SHINOHARA, Tatsuo

Inventor： FANUC LTD

IPC: H05K03/46

CPC classification number: H05K1/0265 ,  H01R13/5205 ,  H05K1/116 ,  H05K3/429 ,  H05K2201/09672 ,  H05K2201/0979

Abstract: In a multi-layer printed circuit board, a predetermined circuit pattern is formed as a conductive layer (b1) using a copper foil having a standard thickness, the above conductive layer is laminated (11) on the surface of an insulating layer (C1, the conductive layers having the same circuit pattern and the insulating layers are provided alternatingly in a plurality of stages (11, 12, 13), and the conductive layers are connected together in parallel via a through-hole (T), permitting a large-current control element to be connected thereto.

公开(公告)号：WO1989007858A1

公开(公告)日：1989-08-24

申请号：PCT/JP1989000167

申请日：1989-02-20

Applicant: FANUC LTD ,  KOHARI, Katsuo ,  NAKAMURA, Kosei ,  FUJIOKA, Yoshiki ,  KONO, Shinichi ,  SHINOHARA, Tatsuo

Inventor： FANUC LTD

IPC: H02P07/36

CPC classification number: H02P1/26 ,  H02P1/32 ,  H02P23/00 ,  H02P25/20

Abstract: This invention relates to a motor output change-over control unit used for a main shaft operating motor of a machine tool. A conventional unit of this kind produces a wide range constant motor output by gears, and a main shaft operating motor having a single winding is employed. Therefore, the heat buildup of the winding is increased and a transmission mechanism consisting of gears inevitably becomes large-scale. The motor output change-over control unit according to the present invention has output characteristics of an AC motor stabilized over a wide range from a high speed to a low speed by switching over the connection of the power line in the motor.

公开(公告)号：WO1985003813A1

公开(公告)日：1985-08-29

申请号：PCT/JP1985000065

申请日：1985-02-16

Applicant: FANUC LTD ,  FUJIOKA, Yoshiki ,  SHINOHARA, Tatsuo

Inventor： FANUC LTD

IPC: H02M07/42

CPC classification number: H02M5/458 ,  H02M1/14 ,  H02M1/15

Abstract: A high frequency noise absorbing circuit in a control circuit of a load device having a power source (I), a converter circuit (II), a DC link unit (III), and an inverter circuit (4), which absorbing circuit comprises capacitors (C1, C3, C5) connected between the positive and negative terminals of the DC link (III) and a ground. The absorbing circuit has a zero-phase reactor (L1) arranged in the power source (I). Further, the absorbing circuit has a capacitor (C5) arranged between the zero-phase reactor (L1) and the power source (I).

公开(公告)号：WO1995016177A1

公开(公告)日：1995-06-15

申请号：PCT/JP1994001674

申请日：1994-10-06

Applicant: FANUC LTD ,  SHINOHARA, Tatsuo ,  TAKESHITA, Makoto

Inventor： FANUC LTD

IPC: F28F03/12

CPC classification number: F28F3/02 ,  H01L21/4882 ,  H01L23/427 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A heat sink with a heat plate comprising a heat plate (1) having two sheets of aluminum plates (11, 12) which are bonded together except for a heat exchanging medium flow path (13) for receiving therein a heat exchanging medium in a sealing fashion with a body to be cooled in contact with a lower area thereof, a cooling fin (2) mounted on an upper area of the heat plate (1), and a mounting flange for use in actually mounting an assembly comprising the heat plate (1) and the cooling fin (2), wherein a face where the heat plate (1) is mounted on the cooling fin (2) is flat, and wherein the cooling fin (2) and the mounting flange (4) are produced integrally with each other using a diecast method.

Abstract translation: 一种具有加热板的散热器，包括具有两片铝板（11,12）的加热板（1），所述铝板（11,12）除了用于在其中接收密封件中的热交换介质的热交换介质流动路径（13）之外结合在一起 具有与其下部区域接触冷却的主体的方式，安装在加热板（1）的上部区域上的冷却翅片（2）和用于实际安装包括加热板的组件的安装凸缘（ 1）和散热片（2），其中，散热片（1）安装在冷却翅片（2）上的面是平坦的，其中冷却翅片（2）和安装凸缘（4）一体地制造 彼此使用压铸方法。

公开(公告)号：WO1988010533A1

公开(公告)日：1988-12-29

申请号：PCT/JP1988000589

申请日：1988-06-16

Applicant: FANUC LTD ,  FUJIOKA, Yoshiki ,  SHINOHARA, Tatsuo

Inventor： FANUC LTD

IPC: H02P07/63

CPC classification number: H05K7/1432

Abstract: An amplifier unit for AC spindles includes amplifiers inserted between the AC motors for driving the spindles of a machine tool and the power source and is accommodated in a housing (10). Unit fixing seats consisting of a flat region (12) and a boat-shaped region (14) are provided at predetermined positions on the ceiling of the housing (10), the unit fixing seats being abutted to mounting portions of a plurality of electric circuit units (B, D, G, H) that form the amplifiers, and thin vertical plate-like ribs (22) are provided surrounding said predetermined positions so that the mounting portions (18) of the electric circuit units (B, D, G, H) and fixing seats (12, 14) are abutted together, said ribs (22) having tilted surfaces (24) that work to place the electric circuit units (B, D, G, H) in position.

公开(公告)号：WO1987001250A1

公开(公告)日：1987-02-26

申请号：PCT/JP1986000420

申请日：1986-08-14

Applicant: FANUC LTD ,  FUJIOKA, Yoshiki ,  KOUNO, Shinichi ,  SHINOHARA, Tatsuo

Inventor： FANUC LTD

IPC: H02P05/408

CPC classification number: H02P29/026 ,  H02P21/08 ,  H02P21/36 ,  Y02P80/112

Abstract: A method of controlling a three-phase induction motor in which a primary current is formed as a current command by taking all of the constants of an induction motor (d) into consideration to obtain a linear output torque with respect to the torque command (Tm), and a voltage is detected at a DC link portion to change the excitation flux command based upon the DC voltage (V). Therefore, the output can be maintained constant irrespective of changes in the power source voltage. Provision is further made of a power factor adjusting means (q) to adjust the phases of the voltage and current of the AC power source side during the regenerative braking operation, so that the reactive power decreases.