JPH1155890A - Motor with driver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To unitize a motor part and a driver in one piece by constituting the driver for driving the motor of a substrate and an amplification unit, and providing the driver inside a container for covering a motor case. SOLUTION: In a motor with a driver, a rotor and a stator are internally provided in a motor case of a motor part 1, and a rotary shaft 5 projects toward the outside from the motor case 4. In this case, a driver 2 is constituted of a plurality of substrates 7 with functions such as power supply and control parts and/or an interface and an amplification unit 9 for amplifying a drive signal for driving the motor part 1. Then, the substrates 7 are placed on the periphery surface of the motor case 4 via a support 6. Also, the amplification unit 9 is mounted on the internal wall of a cylindrical container 8 for covering the outer periphery of the motor case 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor with a driver, and more particularly to a novel motor for integrating a motor unit and a driver by providing a plurality of substrates and an amplifier unit inside the container. It is about improvement.

[0002]

2. Description of the Related Art Conventionally, a driver and a motor of this kind are used as shown in FIGS.
The motor 1 and the driver 2 are separately and independently configured, and the motor 1 and the driver 2 are connected by a multi-linear cable 3.

[0003]

The conventional motor with a driver has the following problems because it is configured as described above. That is, the driver has a box shape that is larger than the shape of the motor part, and therefore, the motor part and the driver have to be separately installed,
In the case of a configuration using a large number of motors and drivers, such as an NC control type machine tool or robot, the space for installing this driver becomes an obstacle, making it difficult to reduce the overall size of the machine tool or robot. I was letting it.

[0004] The present invention has been made to solve the above problems, and in particular, by providing a plurality of substrates and an amplification unit constituting a driver inside a container,
It is an object of the present invention to provide a motor with a driver in which a motor unit and a driver are integrated.

[0005]

A motor with a driver according to the present invention has a motor portion having a stator and a rotor in a motor case and having a rotating shaft protruding from the motor case, and the motor case provided in the motor portion. A container for covering the motor case, a substrate provided on the motor case via a support, and an amplification unit having a power transistor attached to an inner wall of the container and amplifying a drive signal for driving the motor unit. And a driver for driving the motor unit by the respective substrates and the amplification unit, and the driver is provided inside the container.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a motor with a driver according to the present invention will be described below with reference to the drawings.
The same or equivalent parts as those in the conventional example will be described using the same reference numerals. In FIGS. 1 and 2, reference numeral 1 denotes a motor unit, and a motor case 4 of the motor unit 1.
A well-known rotor and stator (not shown) are provided therein. A rotating shaft 5 connected to the rotor protrudes outward from an end of the motor case 4.

On the peripheral surface of the motor case 4, a plurality of substrates 7, 7A having functions of a power supply unit, a control unit, an interface, etc. are provided via a support 6 implanted in the motor case 4. Each board 7 and the motor unit 1 are connected by a flat cable 3. At the outer peripheral position of the motor case 4, the motor case 4
A container 8 having a substantially cylindrical shape and made of metal or the like and having heat radiation characteristics is provided so as to cover the inside of the container. A substrate 9A to which an amplification unit 9 having a (not shown) is attached is attached, and the heat generated from this amplification unit 9 is configured to be radiated to the outside via the container 8, and A driver 2 for driving the motor unit 1 is constituted by the substrates 7, 7A, 9, 9A and the amplification unit 9. The number of the substrates 7 and 7A may be single or plural depending on the combination of the circuit configurations. Further, the above-mentioned container 8 can be constituted by a pressure-resistant container having pressure-resistant characteristics.

[0008]

Since the motor with a driver according to the present invention is configured as described above, the following effects can be obtained. That is, since the substrate for power supply and control is provided in the motor case, and the heat-generating amplification unit is provided in the container, the driver can be integrally mounted on the motor part, and the heat-generating part of the driver can be used. The heat of a certain amplifying unit can be radiated from the container, and a motor with a driver that is much smaller than in the past can be obtained.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a motor with a driver according to the present invention.

FIG. 2 is a right side view of FIG.

FIG. 3 is a perspective view showing a conventional driver and motor.

FIG. 4 is a front view of the driver shown in FIG. 3;

FIG. 5 is a side view showing the driver of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Motor part 2 Driver 4 Motor case 5 Rotating shaft 6 Prop 7, 7A board 8 Container 9 Amplification unit

Claims (1)

[Claims] A motor unit (1) having a stator and a rotor in a motor case (4) and having a rotating shaft (5) protruding from the motor case (4); and a motor unit (1). A container (8) for covering the motor case (4), a substrate (7, 7A) provided on the motor case (4) via a support (6), and attached to an inner wall of the container (8). Amplifying unit (9) having a power transistor for amplifying a drive signal for driving the motor unit (1), and the motor unit (1) ), And the driver (2) is provided inside the container (8).