CN213521563U

CN213521563U - Interior cooling structure of permanent-magnet machine

Info

Publication number: CN213521563U
Application number: CN202022949031.5U
Authority: CN
Inventors: 吴登昊; 黄宇斌
Original assignee: Taizhou Zhongji Intelligent Equipment Co ltd
Current assignee: Taizhou Zhongji Intelligent Equipment Co ltd
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-06-22
Anticipated expiration: 2030-12-11

Abstract

The utility model provides a permanent-magnet machine's internal cooling structure belongs to transmission machinery technical field. The driving device solves the problems that the heat dissipation effect of the existing driving device is relatively poor, the driving device passively dissipates heat and is frequently damaged by driving under a long-time continuous working state. This permanent-magnet machine's internal cooling structure, including casing, pivot, drive arrangement, fan and back shroud, the rear end face of casing inwards caves in and forms the holding chamber, and the fan is fixed in the tip of pivot and is located the holding intracavity, and the back shroud is fixed in the casing rear, and drive arrangement is fixed in the back shroud and relative with the fan position, has seted up ventilation hole one, ventilation hole two and ventilation hole three formation and the air runner of outside intercommunication on casing, holding chamber and the back shroud in proper order. The utility model has the advantages of set up drive arrangement to cooling system air runner's effective area promptly, make traditional passive heat dissipation turn into the initiative heat dissipation, the radiating effect is better.

Description

Interior cooling structure of permanent-magnet machine

Technical Field

The utility model belongs to the technical field of the transmission machinery, a permanent-magnet machine is related to, in particular to permanent-magnet machine's internal cooling structure.

Background

The permanent magnet motor is widely applied to the field of machinery with the advantages of high reliability, high efficiency and the like, and is mainly matched with a driving device and a heat dissipation system for use. Traditional drive arrangement is the radial positioning installation with motor housing, installs in motor housing outside, and cooling system mainly comprises the rearmounted fan of installing at the pivot end, and drive arrangement is located cooling system direct action regional side (see fig. 1), therefore the radiating effect of drive arrangement part is relatively poor, belongs to passive heat dissipation, under the long-time continuous operating condition, the drive damage condition often appears.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a new heat radiation structure for the motor life-span is longer, the wider permanent-magnet machine's of application internal cooling structure.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a permanent-magnet machine's internal cooling structure, includes casing, pivot, drive arrangement, fan and back shroud, its characterized in that, the rear end face of casing inwards caves in and forms the holding chamber, the fan be fixed in the tip of pivot and lie in the holding intracavity, the back shroud be fixed in the casing rear, drive arrangement be fixed in the back shroud and relative with the fan position, casing, holding chamber and back shroud on seted up in proper order ventilation hole one, ventilation hole two and ventilation hole three form with the air runner of outside intercommunication.

The utility model discloses in, it inhales from the ventilation hole three of rear cover to drive the fan operation through the pivot makes the outside air, and the ventilation hole two of holding chamber department flows through, flows out from the ventilation hole one of casing at last, and its air flow principle also can make above-mentioned airflow direction reverse transport through changing fan structure or pivot direction of rotation, and consequently this cooling system's air flow can direct action on casing inside and drive arrangement, obtains effectual promotion for its heat dispersion of traditional motor structure.

In the internal cooling structure of the permanent magnet motor, the first ventilation hole is located at the top of the casing.

In the internal cooling structure of the permanent magnet motor, the third ventilation hole is located at the top of the rear cover.

In the internal cooling structure of the permanent magnet motor, the two ventilation holes are circumferentially arranged and arranged on the end surface at the rear part of the machine shell.

Compared with the prior art, the cooling structure of the internal cooling structure of the permanent magnet motor has the following advantages:

1. the driving device is arranged in an effective area of a heat dissipation system, namely an air flow channel, so that the traditional passive heat dissipation is converted into active heat dissipation, and the heat dissipation effect is better;

2. effectively reduced permanent-magnet machine external diameter, made it satisfy some use scenes to the restriction of permanent-magnet machine external diameter, increased permanent-magnet machine's application to be favorable to the loading transportation simultaneously.

Drawings

FIG. 1 is a cross-sectional view of a prior art permanent magnet motor construction;

FIG. 2 is a structural cross-sectional view of the present permanent magnet machine;

in the figure, 1, a housing; 2. a rotating shaft; 3. a drive device; 4. a fan; 5. a rear cover; 6. an accommodating cavity; 7. a first ventilation hole; 8. a second air vent; 9. and a third ventilation hole.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 2, this interior cooling structure of permanent magnet motor, including casing 1, pivot 2, drive arrangement 3, fan 4 and back shroud 5, the rear end face of casing 1 is inwards sunken to form holding chamber 6, fan 4 is fixed in the tip of pivot 2 and is located holding chamber 6, back shroud 5 is fixed in casing 1 rear, drive arrangement 3 is fixed in back shroud 5 in and relative with fan 4 position, casing 1, holding chamber 6 and back shroud 5 have seted up ventilation hole one 7 in proper order, ventilation hole two 8 and ventilation hole three 9 form the air runner with outside intercommunication.

The principle of the internal cooling structure of the permanent magnet motor is as follows: the heat dissipation system airflow flow mode is as shown by the arrow in the figure, the fan 4 of the heat dissipation core structure of the permanent magnet motor is arranged at the central part (also the region with the most concentrated heat generation) between the casing 1 and the driving device 3, heat is dissipated from the inside, a large amount of heat is taken to the outside through the ventilation opening at the maximum efficiency, the permanent magnet motor is enabled to be wholly located in the environment with lower temperature to work, the work efficiency is improved, and the service life is prolonged.

Further, because the hot air has low density and flows upwards, the first vent 7 is arranged at the top of the casing 1, and the third vent 9 is arranged at the top of the rear cover 5, which is more favorable for the outflow of the hot air.

The second ventilation holes 8 are circumferentially arranged on the end face behind the machine shell 1, so that the cross section area of a flow channel is increased, and the air can act more comprehensively in the flowing process.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although various terms are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a permanent-magnet machine's internal cooling structure, includes casing (1), pivot (2), drive arrangement (3), fan (4) and back shroud (5), its characterized in that, the rear end face of casing (1) is inwards sunken to form holding chamber (6), fan (4) be fixed in the tip of pivot (2) and lie in holding chamber (6), back shroud (5) be fixed in casing (1) rear, drive arrangement (3) be fixed in back shroud (5) in and relative with fan (4) position, casing (1), holding chamber (6) and back shroud (5) on seted up ventilation hole (7), ventilation hole two (8) and ventilation hole three (9) in proper order and formed the air runner with outside intercommunication.

2. An internal cooling structure for a permanent magnet motor according to claim 1, characterized in that the first ventilation hole (7) is located at the top of the casing (1).

3. An internal cooling structure of a permanent magnet motor according to claim 1, characterized in that the vent hole three (9) is located at the top of the back cover (5).

4. The internal cooling structure of the permanent magnet motor according to claim 1, wherein the second ventilation holes (8) are circumferentially arranged and opened on the end surface at the rear of the machine shell (1).