JPH04101264U - Built-in brake motor - Google Patents

Abstract

(57) [Summary] [Purpose] To enable direct cooling of the outer peripheral surface of the motor body in a motor with a built-in brake, and to enable adjustment of the cooling air volume from the fan motor depending on the degree of heat generation of the motor body. belongs to. [Structure] Three fan motors and one terminal box assembly are mounted on the outer circumferential surface of the motor body in which the stator and rotor are housed, and one of the three fan motors is mounted at approximately quarter positions in the circumferential direction. Some or all of the fan motors can be selectively activated.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a motor with a built-in brake.

0002

[Conventional technology]

A conventional motor with a built-in brake is configured as shown in FIG. 3, for example. The one shown in FIG. 3 has a brake 2 connected to the axial end of the motor body 1. One fan motor 3 consisting of a drive motor and a cooling air fan is attached to the A cooling air guide cover 4 extends beyond the outer periphery of the brake 2 to the outer periphery of the motor body 1. ing.

0003

[Problem that the idea aims to solve]

However, the conventional brake built-in motor shown in FIG. 3 has the following problems. (i) Brake maintenance is difficult. (ii) The long flow path of the cooling air causes a pressure drop and reduces the cooling capacity.

0004

[Means to solve the problem]

This invention solves the conventional problem by introducing a motor with a built-in brake. Three fan motors are installed on the outer circumferential surface of the motor body that houses the stator and rotor. and one terminal box assembly is attached to one approximately quarter position in the circumferential direction, said Some or all of the three fan motors can be operated selectively. The present invention aims to provide a motor with a built-in brake.

[0005]

[Effect]

Cooling from three fan motors attached to three locations on the outer circumferential surface of the motor body The outer peripheral surface of the motor body can be directly cooled by wind, and the Select some or all of the three fan motors depending on the degree of heat generation. The cooling air volume from the fan motor can be adjusted by selectively operating the fan motor.

[0006]

【Example】

The following is an example of a built-in brake motor according to the present invention, with reference to FIGS. 1 and 2. Refer to and explain. 1 and 2, reference numeral 11 denotes a motor body, which includes a rotor core 12. A stator including a stator, a stator core 13, and a stator coil 14 is accommodated. Ru. Reference numeral 15 denotes a brake, which is assembled at the axial end of the motor body 11. . Reference numeral 16 denotes a rotation detector, which is attached to the axial end of the brake 15. . 17a, 17b, 17c are three fans consisting of a drive motor and a cooling air fan. Motor 18 is a terminal box assembly, and three fan motors 17a, 17b, 1 7c and the terminal box assembly 18 are located on the outer circumferential surface of the motor body 11 at substantially equal quarter positions in the circumferential direction. The outer peripheral surface of the motor body 11 can be directly cooled by attaching one to the Some or all of the three fan motors 17a, 17b, 17c The motor is selectively activated depending on the degree of heat generation in the motor body 11. The amount of cooling air from the motors 17a, 17b, and 17c can be adjusted.

[0007]

[Effect of the idea]

Since the built-in brake motor according to the present invention is configured as described above, It has excellent effects as described below. The cooling air from the fan motor can directly cool the outer surface of the motor body. Become. Selectively operate some or all of the three fan motors This makes it possible to reduce the load.

[Brief explanation of drawings]

FIG. 1 is a half-sectional side view of an embodiment of a motor with a built-in brake according to the present invention.

FIG. 2 is a diagrammatic front view of FIG. 1;

FIG. 3 is a diagrammatic side view of an example of a conventional brake built-in motor.

[Explanation of symbols]

11 Motor body 12 Rotor core 13 Stator core 14 Stator coil 15 Brake 16 Rotation detector 17a, 17b, 17c fan motor 18 Terminal box assembly

Claims (1)

[Scope of utility model registration request] [Claim 1] A motor with a built-in brake,
Three fan motors and one terminal box assembly are attached to the outer circumferential surface of the motor body in which the stator and rotor are housed, and one terminal box assembly is attached to the outer circumferential surface of the motor body, and one of the three fan motors and one terminal box assembly are attached to the outer circumferential surface of the motor body in which the stator and rotor are housed. Alternatively, all the fan motors are selectively enabled, thereby making it possible to directly cool the outer peripheral surface of the motor body, and making it possible to adjust the amount of cooling air from the fan motor depending on the degree of heat generation of the motor body. A motor with a built-in brake.