JPH0210795U - - Google Patents

Description

[Brief explanation of drawings]

FIG. 1 is an example of a circuit in which an AC three-phase induction motor is used as a drive motor. FIG. 2 is an example of a positive reversal operation control circuit having a relatively large reversal slack torque. FIG. 3 shows the positive reversal operation control circuit 2 having a relatively large reversal loosening torque. FIG. 4 is a third example of a positive reversal operation control circuit having a relatively large reversal slack torque. FIG. 5 is a fourth example of a positive reversal operation control circuit having a relatively large reversal slack torque. FIG. 6 shows an example in which FIG. 5 is applied to an AC single-phase split-phase motor. FIG. 7 is a representation of an embodiment that creates unequal armature reactions and leans toward a neutral carbon brush set.

Claims (1)

[Claims of Utility Model Registration] (1) This design can provide an instantaneous positive/reverse drive of a motor receiving a current signal from an artificial or program controlled or other electrical control device. The drive circuit and motor of this design drives the load with a torque with a relatively large forward rotation, and produces a relatively small instantaneous reversal and reversal drive with a relatively small reversal torque, reducing the inertial impact on the instantaneous mechanism of reversal. 〓 〓
and a motor instantaneous reversal operation control circuit with a relatively small reverse torque, which reduces the risk of excessive current damaging the switch and overheating the motor. (2) The three-phase induction motor, which can be driven after making a Y line connection and can be driven forward by connecting a delta line, can be rotated forward by a set of manually operated magnetic switches (2 is a manual switch). Inversion Y
The main configuration is (
(As shown in the line connections in Figure 1), MSY is a magnetic switch with reverse drive Y connection, PBY is its operation push button, MS delta is a forward rotation drive magnetic switch, PB delta is its operation push button,
PB101 is a stop push button, and when used in any state, all power can be cut off, and LS10
1 is a backward limit switch, which is used to disconnect the MSY when driving in the opposite direction, and when stopped, THS-W101 is used to prevent the thermal switch from burning out the motor due to overload. The operation control circuit according to claim 1, which is provided for protection of a utility model. (3) The drive motor is an AC split-phase motor with unequal forward and reverse torques, C201 is a split-phase capacitor, W201 is the first winding set, W
202 includes a second winding set with winding sets unequal to W201, so that when the operating switches are placed in unequal operating positions, this induction motor operates in unequal directions and is driven with unequal torques. , the relatively large torque direction is used to rotate the load in the forward direction (as shown in FIG. 2), the operation control circuit according to claim 1, which is a registered utility model. (4) In the circuit of the forward rotation and reverse rotation switch of one drive motor, when the single-phase AC induction motor is operated in the opposite direction and reversed, a damping impedance (fixed or adjustable resistance, 2. The circuit of claim 1, further comprising an electrical sensing circuit (including a capacitor element) in series to limit its torque to less than the torque of forward cutting. (5) In a circuit that is driven by forward rotation and reverse rotation, the one that drives in the opposite direction is a DC motor that can be forward-reversed by connecting damping impedances in series. 2. Circuit according to claim 1, characterized in that, when operating in the direction, the armature limits its torque to less than the torque in the case of forward rotation by means of a series damping element Z401. (6) The switch SW504 is used to select the power supply voltage of the motor and the driving direction of the motor, and the motor has the characteristic of changing the torque in accordance with the voltage.Claim for Utility Model Registration: The circuit described in item 1. (7) If the DC motor is in forward or reverse direction, it will be tilted to the midline of the change of direction due to the turning angle of the brushes, exhibiting unequal armature reactions in the case of forward or reverse direction, producing unequal torques, or re-energizing or differential re-energizing. The circuit according to claim 1, which is obtained by an excitation bonding method.