CN218449642U - Low-voltage direct-current speed-regulating mute brushless motor - Google Patents

Abstract

The utility model relates to the technical field of brushless motors, and discloses a low-voltage direct-current speed-regulating mute brushless motor, which comprises a motor shell, a stator, a rotor component and an installation base, wherein the stator is arranged in the motor shell, the rotor component is rotationally connected with the motor shell, and the motor shell is fixed on the installation base; a surface cover and a bottom cover are arranged at two ends of the motor shell, and a bearing is arranged in each of the surface cover and the bottom cover; two wire racks which are oppositely arranged are arranged in the stator; the rotor assembly comprises a rotor, a permanent magnet and a rotating shaft, the rotor is sleeved in the permanent magnet, and the rotating shaft is arranged in the rotor in a penetrating manner; the mounting base comprises a bottom plate and vertical plates, the vertical plates are arranged on two sides of the bottom plate, the vertical plates are connected with motor fixing frames through bolts, a shock pad is arranged between the motor fixing frames and the vertical plates, and the surface cover and the bottom cover are sleeved in the shock pad. The utility model adopts high-performance Ru-Fe-B material to realize small volume and high torque performance; the surface cover and the bottom cover are provided with shock-proof pads, so that the shock of the motor in high-speed operation is effectively reduced.

Description

Low-voltage direct-current speed-regulating mute brushless motor

Technical Field

The utility model relates to a brushless motor technical field, in particular to low pressure direct current speed governing silence brushless motor.

Background

The brushless motor adopts the mode of electronic commutation, coil immobility and magnetic pole rotation. The brushless motor senses the position of the magnetic pole of the permanent magnet through the Hall element, and the direction of current in the coil is switched in time by using an electronic circuit, so that the magnetic force in the correct direction is generated to drive the motor. The electronic switch device replaces the traditional contact commutator and electric brush, and compared with the traditional brush motor, the motor has the advantages of high reliability, no commutation spark, low mechanical noise and the like, and is widely applied to various electronic instruments and automatic office equipment.

Although the influence of the contact type commutator and the electric brush is reduced, the noise generated when the motor rotates can be effectively reduced, the rotor still needs to be connected with the bearing, the motor is also erected on the corresponding base, certain noise can still be generated when the motor vibrates when the motor rotates at a high speed or in the speed regulation conversion process, the use experience of the motor is influenced, and the motor is not suitable for certain high-requirement environments.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem to the defect that exists among the above-mentioned prior art, provide a low pressure direct current speed governing silence brushless motor to solve the problem that proposes in the above-mentioned background art.

In order to solve the technical problem, the utility model discloses the technical scheme who takes as follows:

a low-voltage direct-current speed-regulating mute brushless motor comprises a motor shell, a stator, a rotor assembly and a mounting base, wherein the stator is arranged in the motor shell; a surface cover and a bottom cover are arranged at two ends of the motor shell, and a bearing is arranged in each of the surface cover and the bottom cover; two oppositely-arranged wire frames are arranged in the stator;

the rotor assembly comprises a rotor, a permanent magnet and a rotating shaft, the rotor is sleeved in the permanent magnet, the rotating shaft is arranged in the rotor in a penetrating mode, the tail end of the rotating shaft is inserted into the bearing of the bottom cover, and the transmission end of the rotating shaft is arranged in the bearing of the face cover in a penetrating mode and protrudes out of the face cover;

the mounting base comprises a bottom plate and vertical plates, the vertical plates are oppositely arranged on two sides of the bottom plate, motor fixing frames are connected to the vertical plates through bolts, shock-proof pads are fastened between the motor fixing frames and the vertical plates, and the face cover and the bottom cover are sleeved in the shock-proof pads.

In the above technical solution, a reinforcing rib is disposed between the bottom plate and the vertical plate.

In the above technical scheme, the rotating shaft is provided with a clamping groove and a clamp spring fixed on the clamping groove, the clamp spring is arranged between the bearing and the rotor assembly, and the head end and the tail end of the rotating shaft are respectively provided with one clamp spring.

In the above technical solution, the motor casing is provided with a wire inlet hole.

In the above technical solution, the permanent magnet is a hollow cylindrical neodymium iron boron magnetic component.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the utility model adopts high-performance Ru-Fe-B material to realize small volume and high torque performance;

2. the utility model adopts the rotating magnetic line of force technology to match with the sine wave driving plate, thereby achieving the silent, smooth and steady movement effect;

3. the utility model discloses a be equipped with assorted antivrbration pad and base mount on face lid and the bottom to the vibrations of motor under high-speed operation have been reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the present invention.

Fig. 3 is a rear view of the present invention.

Fig. 4 is an explosion effect diagram of the present invention.

Fig. 5 is a front view of the explosion effect of the present invention.

Fig. 6 is a schematic view of another mounting base structure of the present invention

Reference numerals are as follows:

1. the motor shell 11, the surface cover 12, the bottom cover 13, the bearing 14 and the wire inlet hole;

21. stator, 22, bobbin;

3. the rotor assembly comprises a rotor assembly 31, a rotor 32, a permanent magnet 33, a rotating shaft 34, a clamping groove 35 and a clamp spring;

4. the mounting base 41, the bottom plate 42, the vertical plate 43, the motor fixing frame 44, the shockproof pad 45 and the reinforcing ribs.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiments described by referring to the drawings are exemplary and intended to be illustrative of the present application and are not to be construed as limiting the present application. In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, both fixed and removable connections or integral connections; 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 application can be understood by those of ordinary skill in the art as the case may be. In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

As shown in fig. 1-5, the utility model discloses a low pressure dc speed governing silence brushless motor who realizes, including motor casing 1, stator 21, rotor subassembly 3 and installation base 4, stator 21 establishes in motor casing 1, rotor subassembly 3 with motor casing 1 rotates and connects, motor casing 1 is fixed on installation base 4. The two ends of the motor shell 1 are provided with a surface cover 11 and a bottom cover 12, the surface cover 11, the bottom cover 12 and the motor shell 1 form a closed mute cavity, so that a good mute and noise reduction effect can be achieved, and a bearing 13 is arranged in each of the surface cover 11 and the bottom cover 12; two oppositely-arranged wire frames 22 are arranged in the stator 21, and corresponding wire windings are arranged in the wire frames 22 to play a driving role.

The rotor assembly 3 includes a rotor 31, a permanent magnet 32 and a rotating shaft 33, the rotor 31 is sleeved in the permanent magnet 32, the rotating shaft 33 is inserted in the rotor 31, the end of the rotating shaft 33 is inserted into the bearing 13 of the bottom cover 12, and the transmission end of the rotating shaft 33 is inserted in the bearing 13 of the face cover 11 and protrudes out of the face cover 11;

the mounting base 4 comprises a bottom plate 41 and a vertical plate 42, the vertical plate 42 is oppositely arranged on two sides of the bottom plate 41, the vertical plate 42 is connected with a motor fixing frame 43 through bolts, a shock pad 44 is arranged between the motor fixing frame 43 and the vertical plate 42, and the surface cover 11 and the bottom cover 12 are sleeved in the shock pad 44. The shock pad 44 is a multi-layer circular truncated cone-shaped shock pad with a through middle, the shock pad 44 and the surface cover 11 and the bottom cover 12 sleeved therein are firmly fixed on the mounting base 4 by the motor fixing frame 43 through adjusting bolts, and the side surface of the shock pad 44 is tightly attached to the bottom plate 41 and the surface cover 11 and the bottom cover 12, so that a good shock-proof effect is achieved, and the noise generated by the working shock of the motor is effectively reduced.

As shown in fig. 6, further, a reinforcing rib 45 is disposed between the bottom plate 41 and the vertical plate 42, so that the firmness and the shock resistance of the mounting base 4 can be greatly enhanced, and in another embodiment, the brushless motor is used in cooperation with the mounting base 4 having the reinforcing rib 45, so that the use effect is better.

Further, a clamping groove 34 and a clamping spring 35 fixed on the clamping groove 34 are arranged on the rotating shaft 33, the clamping spring 35 is arranged between the bearing 13 and the rotor assembly 3, and the head end and the tail end of the rotating shaft 33 are respectively provided with one clamping spring 35.

Furthermore, the motor housing 1 is provided with a wire inlet 14 for facilitating access to a wire connected to an electronic component mounted inside.

Further, the permanent magnet 32 is a hollow cylindrical neodymium iron boron magnetic component, and can realize small-size and large-torque performance.

In the embodiment, a rotating magnetic line process is adopted to match with a sine wave drive plate, so that silent, smooth and stable movement effects are achieved, wherein the angle of the rotating magnetic line is 1-180 degrees, except 90 degrees. The multifunctional massage bed can be widely applied to intelligent mattresses, intelligent sofas, intelligent adjusting beds, gyromagnetic hosts, push rod motors, speed reducing mechanisms, foot bath sofas, beauty beds, massage chairs, massage beds, rehabilitation beds and other equipment, and has good practicability and adaptability.

The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.

Claims (5)

1. The utility model provides a low pressure direct current speed governing silence brushless motor which characterized in that includes:

the motor comprises a motor shell, a stator, a rotor assembly and an installation base, wherein the stator is arranged in the motor shell, the rotor assembly is rotationally connected with the motor shell, and the motor shell is fixed on the installation base; a surface cover and a bottom cover are arranged at two ends of the motor shell, and a bearing is arranged in each of the surface cover and the bottom cover; two oppositely-arranged wire frames are arranged in the stator;

the rotor assembly comprises a rotor, a permanent magnet and a rotating shaft, the rotor is sleeved in the permanent magnet, the rotating shaft penetrates through the rotor, the tail end of the rotating shaft is inserted into the bearing of the bottom cover, and the transmission end of the rotating shaft penetrates through the bearing of the face cover and protrudes out of the face cover;

the mounting base comprises a bottom plate and a vertical plate, the vertical plate is oppositely arranged on two sides of the bottom plate, a motor fixing frame is connected to the vertical plate through bolts, a shock pad is arranged between the motor fixing frame and the vertical plate, and the surface cover and the bottom cover are sleeved in the shock pad.

2. The electric machine of claim 1, wherein: and reinforcing ribs are arranged between the bottom plate and the vertical plate.

3. The electric machine of claim 1, wherein: the rotating shaft is provided with a clamping groove and a clamping spring fixed on the clamping groove, the clamping spring is arranged between the bearing and the rotor assembly, and the head end and the tail end of the rotating shaft are respectively provided with one clamping spring.

4. The electric machine of claim 1, wherein: the motor shell is provided with a wire inlet hole.

5. The electric machine of claim 1, wherein: the permanent magnet is a hollow cylindrical neodymium iron boron magnetic material component.

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