CN218335581U - Noise reduction device of brushless DC motor - Google Patents

Abstract

The utility model relates to a technical field of making an uproar falls discloses a device of making an uproar falls in brushless DC motor, which comprises a housin, the casing sets up to one end open-ended tubular structure and the internal bottom surface fixed mounting of casing has multiunit interval distribution's reference column, and fixed mounting has the first sound cotton of inhaling of section of thick bamboo type structure on the casing inside wall, the one end fixed mounting who keeps away from the reference column in the casing has the mounting panel of loop configuration, and fixed mounting has multiunit evenly distributed's double-screw bolt on the mounting panel. Compared with the prior art, the beneficial effects of the utility model are that: can guarantee brushless motor work area's air cycle, and can absorb the heat that brushless motor gived off through cold water to the radiating speed that accelerates guarantees that brushless motor is in operation under the good temperature, can carry out a lot of absorption to the noise that brushless motor produced under the radiating circumstances of assurance, thereby the influence of noise when effectively having reduced brushless motor and using is favorable to.

Description

Noise reduction device of brushless DC motor

Technical Field

The utility model relates to a technical field of making an uproar falls specifically is a device of making an uproar falls in DC brushless motor.

Background

The permanent magnet brushless direct current motor adopts permanent magnet materials for excitation and adopts electronic devices for commutation, so the permanent magnet brushless direct current motor has the remarkable advantages of high efficiency, light weight, simple control, good reliability and the like, and has been successfully applied in the fields of computer equipment, mechanical equipment, medical equipment, automobile industry, household appliances and the like.

Brushless motor need fall the noise treatment when using, and the device of making an uproar that falls in the current mostly is direct wraps up brushless motor when using to be difficult to guarantee brushless motor's the heat dissipation condition, can't guarantee that brushless motor is in operation under the good temperature, make brushless motor damage easily, and relatively poor through inhaling the cotton single noise absorbing effect of sound, be unfavorable for the use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a device of making an uproar falls in brushless DC motor to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a device of making an uproar falls in brushless DC motor, includes the casing, the casing sets up to one end open-ended tubular structure and the internal bottom surface fixed mounting of casing has multiunit interval distribution's reference column, and fixed mounting has the first sound cotton of inhaling of cartridge type structure on the casing inside wall, the one end fixed mounting who keeps away from the reference column in the casing has loop configuration's mounting panel, and fixed mounting has multiunit evenly distributed's double-screw bolt on the mounting panel, can dismantle through the double-screw bolt on the mounting panel and be connected with the clamp plate, and the cotton sliding connection of clamp plate outside surface and first sound of inhaling, the clamp plate is close to the fixed surface of reference column and installs the heat-absorbing cylinder of making an uproar, and the one end fixed mounting that the heat-absorbing cylinder of making an uproar kept away from the clamp plate has loop configuration's buffering sponge, the casing open end can dismantle through set screw and be connected with the apron, and the fixed surface that the apron is located the casing installs the second and inhale the sound cotton, be provided with radiator unit on the clamp plate.

As a further aspect of the present invention: a first damping rubber pad is fixedly mounted on the inner bottom surface of the shell, and a through hole is formed in the middle of the first damping rubber pad.

As a further aspect of the present invention: and the stud is in threaded connection with a fixing nut for fixing the pressing plate.

As a further aspect of the present invention: and a second shock-absorbing rubber pad is fixedly arranged on the surface of the pressing plate close to the positioning column.

As a further aspect of the present invention: the noise reduction heat absorption cylinder is communicated with a water inlet pipe, and a valve is installed on the water inlet pipe.

As a further aspect of the present invention: the radiating assembly comprises radiating pipes, the radiating pipes are provided with a plurality of groups and are fixedly installed on the pressing plate, the radiating pipes are distributed in a circular shape around the second shock-absorbing rubber pads, the radiating pipes are located in the area covered by the noise-reducing heat-absorbing cylinders, and the radiating pipes are communicated with the noise-reducing heat-absorbing cylinders.

As a further aspect of the present invention: the one end that the clamp plate was kept away from to the cooling tube stretches into in the apron, sets up the through-hole that supplies the cooling tube to stretch into on the apron and apron fixed mounting have an annular structure filter screen, and the filter screen covers the region at cooling tube gas outlet place.

Compared with the prior art, the beneficial effects of the utility model are that: can guarantee brushless motor work area's air cycle, and can absorb the heat that brushless motor gived off through cold water to the radiating speed that accelerates guarantees that brushless motor is in operation under the good temperature, can carry out a lot of absorption to the noise that brushless motor produced under the radiating circumstances of assurance, thereby the influence of noise when effectively having reduced brushless motor and using is favorable to.

Drawings

Fig. 1 is a front view of a noise reduction device of a brushless dc motor.

Fig. 2 is an enlarged view of fig. 1 at A1.

Fig. 3 is an enlarged view of fig. 1 at A2.

Wherein: 1. a housing; 2. a positioning column; 3. a first sound absorbing cotton; 4. mounting a plate; 5. a stud; 6. fixing a nut; 7. pressing a plate; 8. a noise reduction heat absorption cylinder; 9. a buffer sponge; 10. a cover plate; 11. the second sound-absorbing cotton; 12. a fixing screw; 13. a radiating pipe; 14. a filter screen; 15. a water inlet pipe; 16. a valve; 17. a first cushion rubber pad; 18. a second cushion rubber pad; 19. a heat dissipation assembly.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Please refer to fig. 1-fig. 3, for the utility model discloses a structure diagram of a dc brushless motor noise reduction device that embodiment provides, including casing 1, casing 1 sets up to one end open-ended tubular structure and casing 1 in bottom fixed mounting have multiunit interval distribution's reference column 2, fixed mounting has the first cotton 3 of inhaling of the sound of cartridge type structure on the 1 inside wall of casing, the one end fixed mounting who keeps away from reference column 2 in casing 1 has the mounting panel 4 of loop configuration, fixed mounting has multiunit evenly distributed's double-screw bolt 5 on the mounting panel 4, can dismantle through double-screw bolt 5 on the mounting panel 4 and be connected with clamp plate 7, clamp plate 7 outside surface and the cotton 3 sliding connection of first sound absorption, clamp plate 7 is close to the fixed surface of reference column 2 and installs the heat-absorbing shell 8 of making an uproar that falls, the heat-absorbing shell 8 of making an uproar keeps away from the one end fixed mounting of clamp plate 7 has the sponge 9 of loop configuration, the open end of sound-absorbing shell is through fixed connection of sound-absorbing screw 12 can dismantle and is connected with apron 10, apron 10 is located the fixed surface that casing 1 of apron 10 in casing 1 and is installed the second cotton 11, be provided with radiating component 19 on clamp plate 7.

A first shock absorption rubber pad 17 is fixedly mounted on the inner bottom surface of the shell 1, and a through hole is formed in the middle of the first shock absorption rubber pad 17.

The stud 5 is in threaded connection with a fixing nut 6 for fixing a pressure plate 7.

And a second shock-absorbing rubber pad 18 is fixedly arranged on the surface of the pressure plate 7 close to the positioning column 2.

The noise reduction heat absorption barrel 8 is communicated with a water inlet pipe 15, and a valve 16 is installed on the water inlet pipe 15.

In practical application, the embodiment of the invention fills cold water into the noise reduction and heat absorption cylinder 8 through the water inlet pipe 15 and closes the valve 16, the brushless motor is installed in the housing 1, the positioning column 2 passes through the installation hole on the brushless motor, and the placement of the brushless motor is realized through the positioning column 2, then the pressing plate 7 is installed on the stud 5 and the noise reduction and heat absorption cylinder 8 surrounds the brushless motor, the pressing plate 7 is pushed to move inwards through the fixing nut 6, so that the brushless motor is pressed tightly in the housing 1 by the pressing plate 7, the first damping rubber pad 17 and the second damping rubber pad 18 are respectively positioned at two sides of the brushless motor when the brushless motor is fixed, so as to buffer the vibration of the brushless motor, after the fixing of the pressing plate 7 is completed, the cover plate 10 is installed on the housing 1 through the fixing screw 12, and the brushless motor generates noise during operation, inhale the sound cotton 3 and the second through the first sound that inhales 11 absorbs the noise, brushless motor during operation can produce a large amount of heats, because it surrounds brushless motor to fall heat-absorbing cylinder 8 of making an uproar, and then fall the air in the heat-absorbing cylinder 8 of making an uproar and heated, the air after the heating leaves casing 1 and external cold air also gets into in casing 1 through heat-radiating component 19, thereby realize the air cycle in casing 1, be favorable to the cooling of casing 1, cold water in the heat-absorbing cylinder 8 of making an uproar can absorb the heat that brushless motor gived off simultaneously, thereby the speed of the cooling of accelerating, guarantee that brushless motor moves under good temperature, and also can absorb the noise that brushless motor produced through the water in the heat-absorbing cylinder 8 of making an uproar, further noise reduction influences, be favorable to using.

As shown in fig. 1, as a preferred embodiment of the present invention, the heat dissipation assembly 19 comprises a plurality of groups of heat dissipation pipes 13, the heat dissipation pipes 13 are fixedly mounted on the pressing plate 7, the heat dissipation pipes 13 are distributed in a circular shape around the second cushion rubber pad 18, the heat dissipation pipes 13 are located in the area covered by the noise reduction heat absorption cylinder 8, and the heat dissipation pipes 13 are communicated with the noise reduction heat absorption cylinder 8.

One end of the radiating pipe 13, which is far away from the pressing plate 7, extends into the cover plate 10, a through hole for the radiating pipe 13 to extend into is formed in the cover plate 10, an annular filter screen 14 is fixedly mounted on the cover plate 10, and the filter screen 14 covers the area where the air outlets of the radiating pipe 13 are located.

The embodiment of the utility model provides an in the time of practical application, the heat gathering that brushless motor gived off falls in heat-absorbing cylinder 8 of making an uproar, fall the air in the heat-absorbing cylinder 8 of making an uproar and leave casing 1 through cooling tube 13 on upper portion after being heated, external cold air gets into through the cooling tube 13 of lower part simultaneously and falls in the heat-absorbing cylinder 8 of making an uproar, thereby realize the circulation of air, cold water in the heat-absorbing cylinder 8 of making an uproar can absorb the heat that brushless motor gived off simultaneously, it also can absorb the noise that brushless motor produced to fall heat-absorbing cylinder 8 of making an uproar simultaneously, further noise reduction influences, avoid dust etc. to get into through filter screen 14 and fall in the heat-absorbing cylinder 8 of making an uproar.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims (7)

1. The utility model provides a device of making an uproar falls in brushless DC motor, includes the casing, its characterized in that, the casing sets up to one end open-ended tubular structure and the internal bottom surface fixed mounting of casing has multiunit interval distribution's reference column, and fixed mounting has the first sound cotton of inhaling of tubular structure on the casing inside wall, the one end fixed mounting who keeps away from the reference column in the casing has loop configuration's mounting panel, and fixed mounting has multiunit evenly distributed's double-screw bolt on the mounting panel, can dismantle through the double-screw bolt on the mounting panel and be connected with the clamp plate, clamp plate outside surface and the first cotton sliding connection that inhales a sound, and the clamp plate is close to the fixed surface of reference column and installs the heat receiver of making an uproar, and the one end fixed mounting that the heat receiver of making an uproar kept away from the clamp plate has loop configuration's buffering sponge, the casing open end can be dismantled through set screw and be connected with the apron, and the fixed surface that the apron is located the casing has the second to inhale the sound cotton, be provided with radiator unit on the clamp plate.

2. The noise reduction device of the brushless DC motor as claimed in claim 1, wherein a first cushion rubber pad is fixedly mounted on the inner bottom surface of the housing, and a through hole is formed in the middle of the first cushion rubber pad.

3. The brushless DC motor noise reducer according to claim 1, wherein a fixing nut for fixing the pressure plate is screwed to the stud.

4. The brushless DC motor noise reducer according to claim 3, wherein a second cushion rubber pad is fixedly installed on the surface of the pressure plate close to the positioning post.

5. The noise reduction device for the brushless DC motor according to claim 1, wherein the noise reduction and heat absorption cylinder is communicated with a water inlet pipe, and a valve is installed on the water inlet pipe.

6. The noise reduction device of claim 1, wherein the heat dissipation assembly comprises a plurality of sets of heat dissipation tubes fixedly mounted on the pressing plate, the heat dissipation tubes are distributed circularly around the second cushion rubber pad, the heat dissipation tubes are located in an area covered by the noise reduction heat absorption cylinder and are communicated with the noise reduction heat absorption cylinder.

7. The brushless DC motor noise reducer according to claim 6, wherein the end of the heat pipe away from the pressure plate extends into the cover plate, the cover plate is formed with a through hole for the heat pipe to extend into, and the cover plate is fixedly mounted with a filter screen with a ring structure, the filter screen covers the area where the air outlets of the heat pipe are located.

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