CN212225482U

CN212225482U - Motor heat radiation structure for air compressor

Info

Publication number: CN212225482U
Application number: CN202020791285.6U
Authority: CN
Inventors: 陈云康; 李宁; 戚向阳
Original assignee: Kunshan Aibama Electromechanical Industry Co ltd
Current assignee: Kunshan Aibama Electromechanical Industry Co ltd
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2020-12-25
Anticipated expiration: 2030-05-13

Abstract

The utility model discloses a solve the not good technical problem of motor heat dissipation for the prior art air compressor machine, disclose motor heat radiation structure for air compressor machine, including motor casing, bent axle box and fan blade, the outside of motor casing is provided with a plurality of radiating fin, and the fan blade setting is in the outside of motor casing, and the output shaft of motor passes the bent axle box and is connected with the fan blade, and the one end and the motor casing of bent axle box are connected, and the part that the bent axle box is located the motor casing outside is provided with the round exhaust vent, and the exhaust vent communicates with the air inlet duct in the bent axle box. A part of air sucked into the air inlet duct by the fan blades flows through the surfaces of the radiating fins through the air outlet holes, so that the heat exchange speed of the radiating fins is increased, and the radiating effect of the motor is improved.

Description

Motor heat radiation structure for air compressor

Technical Field

The utility model belongs to the technical field of the industrial air compressor machine, involve motor for the air compressor machine.

Background

Most of air compressors used in industry are piston type air compressors, and a motor drives a connecting rod to enable a piston to reciprocate, so that the volume of a cylinder is changed. The heat generated by the motor in the running process needs to be dissipated in time, otherwise, the service life of the motor is influenced. The motor for the general air compressor adopts initiative heat dissipation, and external fan inhales cold air and flows through the motor, has reduced the heat of conducting to the inside of motor, allows the motor to operate under higher load and ambient temperature.

For example, in the case of 3HP, 4HP and other high-horsepower high-power air compressors, the motors used in the air compressors need to dissipate heat in time under a high load, and the conventional active heat dissipation mode using fans cannot meet the heat dissipation requirements of the high-power air compressors, so that the heat dissipation structure of the motors needs to be further improved.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the motor heat radiation structure for the air compressor is good in heat radiation effect.

In order to achieve the above purpose, the utility model provides a technical scheme as follows:

motor heat radiation structure for air compressor, including motor casing, crankcase and fan blade, the outside of motor casing is provided with a plurality of radiating fin, the fan blade sets up the outside of motor casing, the output shaft of motor passes the crankcase with the fan blade is connected, the one end of crankcase with the motor casing is connected, the crankcase is located the outside part of motor casing is provided with the round exhaust vent, the exhaust vent with the air inlet duct intercommunication in the crankcase.

The utility model has the advantages that: a part of air sucked into the air inlet duct by the fan blades flows through the surfaces of the radiating fins through the air outlet holes, so that the heat exchange speed of the radiating fins is increased, and the radiating effect of the motor is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.

FIG. 1 is a block diagram of a motor and crankcase;

FIG. 2 is a block diagram of a crankcase;

fig. 3 is a structural view of the motor case.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Examples

Fig. 1 shows a structure diagram of a motor and a crankcase in a 3HP air compressor, a fan blade 10 is disposed outside a motor casing 20, an output shaft of the motor passes through a shaft hole 31 of the crankcase 30 to be connected with the fan blade 10, one end of the crankcase 30 is connected with the motor casing 20, an air inlet duct 32 is disposed in the crankcase, and air sucked by the fan blade flows through the motor from the air inlet duct to dissipate heat inside the motor. Referring to fig. 3, a plurality of radiating fins 21 are arranged in an equidistant array outside the motor casing 20, one end of each radiating fin abuts against the end face of the crankcase body, and an air duct 22 is formed between two adjacent radiating fins. Referring to fig. 2, a circle of air outlet holes 33 are formed in the portion, located outside the motor casing, of the crankcase body, the air outlet holes are communicated with an air inlet duct 32 in the crankcase body, and a part of air sucked into the air inlet duct by the fan blades flows through the surfaces of the heat dissipation fins through the air outlet holes, so that the heat exchange speed of the heat dissipation fins is increased, and the heat dissipation effect of the motor is improved.

The width of the heat dissipating fins 21 should be larger than the width of the air outlet 33, so that the air blown out from the air outlet can completely reach the rear end along the air duct 22 between the heat dissipating fins, thereby improving the heat exchange efficiency of the heat dissipating fins.

Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The motor heat dissipation structure for the air compressor is characterized by comprising a motor shell, a crankshaft box body and fan blades, wherein a plurality of heat dissipation fins are arranged outside the motor shell, the fan blades are arranged outside the motor shell, an output shaft of a motor penetrates through the crankshaft box body to be connected with the fan blades, one end of the crankshaft box body is connected with the motor shell, a circle of air outlet holes are formed in the part, located outside the motor shell, of the crankshaft box body, and the air outlet holes are communicated with an air inlet channel in the crankshaft box body.

2. The motor heat dissipation structure for an air compressor as claimed in claim 1, wherein the width of the heat dissipation fin is greater than the width of the outlet hole; the end parts of the radiating fins are abutted against the end face of the crankcase body, and an air channel is formed between every two adjacent fins.