CN210225223U

CN210225223U - Small motor

Info

Publication number: CN210225223U
Application number: CN201921096818.2U
Authority: CN
Inventors: Zhiyan Guo; 郭志焱; Jun Li; 李军; Defu Lan; 兰德福
Original assignee: Zhejiang Baolong Mechanical And Electrical Co Ltd
Current assignee: Zhejiang Baolong Mechanical And Electrical Co Ltd
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2020-03-31
Anticipated expiration: 2029-07-12

Abstract

The utility model discloses a small-size motor, which comprises a housin, be provided with the output shaft along endwise slip in the casing, be provided with first magnetic part in the casing, the fixed second magnetic part that is provided with on the output shaft, the drive that slides along the casing axial to the output shaft is realized to first magnetic part and/or second magnetic part magnetic pole change, it is equipped with the wind spring still to overlap on the output shaft, the fixed setting in the casing of outer peripheral face of plane spiral spring. The structure is simple, so that the axial output of the motor is more stable, and the noise is lower.

Description

Small motor

Technical Field

The utility model belongs to the technical field of the small-size motor technique and specifically relates to an axial output's small-size motor.

Background

The motor is also called an electric motor or an electronic starter. The working principle is that the power-on fixed coil is stressed to rotate in a magnetic field and drives the central shaft to work, the central shaft rotates so as to realize output work, along with the development of the technology and the increase of social requirements, for example, in the field of electric toothbrushes, the axial work of a motor output shaft is needed, and in order to realize the axial work, the gear or rack structure is generally adopted to convert the rotation output work into the axial motion, by adopting the form, the output reaction time of the whole equipment is longer, and meanwhile, the multistage energy transmission exists, so that the output power is reduced, the energy is wasted, the output power is sometimes not stable enough, and the noise is larger.

SUMMERY OF THE UTILITY MODEL

The utility model provides a small-size motor, its simple structure to prior art is not enough for motor axial output is more stable, has less noise simultaneously.

The utility model provides a small-size motor, which comprises a housin, be provided with the output shaft along endwise slip in the casing, be provided with first magnetic part in the casing, the fixed second magnetic part that is provided with on the output shaft, the drive that slides along the casing axial to the output shaft is realized to first magnetic part and/or second magnetic part magnetic pole change, it is equipped with the wind spring still to overlap on the output shaft, the fixed setting in the casing of outer peripheral face of plane spiral spring.

The beneficial effect who so sets up is: the output shaft is axially slid along the shell by the magnetic pole transformation of the first magnetic part and/or the second magnetic part, when the first magnetic part and the second magnetic part adopt coil structures, the magnetic pole transformation is realized by connecting the base plate, the base plate adopts PWM power supply, the magnetic pole transformation of the coil magnetic part is realized, attraction or repulsion is realized, the output shaft is axially slid along the shell, a coil spring is further arranged on the output shaft, the reciprocating motion of the output shaft is more stable, and due to the magnetic pole transformation effect, the deflection condition is easy to occur in the sliding process of the output shaft, a certain rotating space can be provided by the coil spring, meanwhile, the rotating reset is facilitated, the stability of the motion of the output shaft is improved, and the using effect of a product is realized.

The utility model discloses further set up as the coil spring is flat spiral spring or awl section spiral spring.

The beneficial effect who so sets up is: by adopting the scheme, the plane volute spiral spring or the cone-truncated volute spiral spring is adopted, so that the radial deflection force can be better borne, the structure is more stable, and the installation and the use are convenient.

The utility model discloses further set up to the coil spring is two and sets up at the casing both ends, be provided with the axle sleeve between coil spring and the output shaft.

The beneficial effect who so sets up is: by adopting the scheme, the overall stability is further ensured, the output shaft slides more smoothly, and the using effect of the product is improved.

The utility model discloses further set up as second magnetism spare both ends are provided with the magnetic pole piece.

The beneficial effect who so sets up is: by adopting the scheme, the magnetic pole pieces are arranged to play a role in gathering magnetism, so that the whole magnetism is better, the motion of the output shaft is more smooth, and the using effect of the product is improved.

The utility model discloses further set up to still the fixed quality piece that is provided with on the output shaft.

The beneficial effect who sets up like this is, adopts above-mentioned scheme, sets up the mass block and can increase the inertia force of motor and effectively reduce the natural frequency of motor for whole operation is more stable, and simple structure does benefit to the realization simultaneously.

The utility model discloses further set up as first magnetism spare tip sets up the magnetic ring.

The beneficial effect who so sets up is: by adopting the scheme, the magnetic ring is arranged to play an anti-interference role, so that the high-frequency noise can be inhibited, the noise is further reduced, and the using effect of the product is improved.

The utility model discloses further set up as first magnetic part is first fixed coil and second fixed coil, first fixed coil and second fixed coil set up along output shaft circumference, first fixed coil and second fixed coil's magnetic pole syntropy sets up, second magnetic part is ring magnet, the fixed cover of ring magnet is established on the output shaft and is set up between first fixed coil and second fixed coil.

The beneficial effect who so sets up is: adopt above-mentioned scheme, set up two coils in the casing, can be through wearing to establish the wire switch-on electrically conductive on the casing, it obtains magnetism to realize the coil circular telegram, the magnetic pole syntropy of two coils, first fixed coil and second fixed coil herein set up along output shaft circumference, indicate two coils round the output shaft setting, but not with the output shaft contact, set up between first fixed coil and second fixed coil as first fixed coil of preferred and second fixed coil lead wire are concentrated, it is more convenient to make the line of walking, the annular magnet of setting on the output shaft, the magnetic pole can not change, and set up between two coils, thereby receive the attraction or the repulsion of first fixed coil and second fixed coil, thereby make the output shaft slide, the structure is simple, and easy realization.

The utility model discloses further set up to first magnetic part is first fixed magnet and the fixed magnet of second, first fixed magnet and the fixed magnet magnetic pole syntropy of second set up, first fixed magnet and the fixed magnet of second encircle to set up outside the output shaft, the second magnetic part is the installation coil, the installation coil sets up on the output shaft around the package, the installation coil sets up between first fixed magnet and the fixed magnet of second.

The beneficial effect who so sets up is: adopt above-mentioned scheme, the installation coil is through the switch-on alternating current, constantly alternate the magnetic pole, and set up between the fixed magnet of two magnetic pole syntropies, thereby make the output pole constantly slide, it sets up the trough that sets up along casing length direction to correspond between two fixed magnet as preferred here on the casing, the lead wire of installation coil is walked out from the trough and is connected with circuit substrate, and leave a small amount of lead wire allowance in the casing, the output shaft of being convenient for slides, can not receive the too much tractive of lead wire, be applicable to the motor of small-amplitude output like this, this kind of structure is simpler simultaneously, and practical.

The utility model discloses further set up to first magnetic part is first change coil and second change coil, first change coil and second change coil set up along output shaft circumference, first change coil and second change coil magnetic pole syntropy set up, the second magnetic part is third change coil, third change coil is around the package on the output shaft, first change coil and second change coil magnetic pole transform or third change coil magnetic pole transform realize the drive that slides along the casing axial to the output shaft.

The beneficial effect who so sets up is: adopt above-mentioned scheme, set to this kind of form, can control the magnetic force size of three conversion coils and change the magnetic pole direction through circuit control to realize the slip of output shaft, this kind of form circuit control is comparatively complicated, but can produce bigger output, and can adjust along with operating mode or use equipment, this kind of structure is also very simple, does benefit to the realization.

Drawings

FIG. 1 is an exploded view of an embodiment of the present invention;

fig. 2 is a cross-sectional view of an embodiment of the present invention.

Detailed Description

As can be seen from fig. 1 and 2, a first embodiment discloses a small motor, which includes a housing 1, an output shaft 2 is disposed in the housing 1 in an axial sliding manner, a first magnetic member is disposed in the housing 1, the first magnetic member is a first fixed coil 41 and a second fixed coil 42, the first fixed coil 41 and the second fixed coil 42 are disposed in the axial direction of the output shaft 2, magnetic poles of the first fixed coil 41 and the second fixed coil 42 are disposed in the same direction, magnetic rings 43 are disposed at end portions of the first fixed coil 41 and the second fixed coil 42, a second magnetic member and a mass block are fixedly disposed on the output shaft 2, the second magnetic member is an annular magnet 5, the annular magnet 5 is fixedly sleeved on the output shaft 2 and disposed between the first fixed coil 41 and the second fixed coil 42, magnetic pole pieces 51 are disposed at two ends of the annular magnet 5, the casing 1 is further provided with a control substrate for controlling the magnetic pole change of the first fixed coil 41 and the second fixed coil 42 to realize the axial sliding of the output shaft 2 along the casing 1, the control substrate is connected with the first fixed coil 41 and the second fixed coil 42 through a lead, the output shaft 2 is further sleeved with coil springs, the coil springs are flat spiral springs 3, two flat spiral springs 3 are arranged at two ends of the casing 1, a shaft sleeve 32 is arranged between the flat spiral springs 3 and the output shaft 2, the casing 1 comprises a main body 11 and positioning plates 12 arranged at two ends of the main body 11, positioning slots 111 are arranged on the inner wall of the main body 11 corresponding to the positions of the positioning plates 12, positioning blocks 121 are formed on the positioning plates 12 along the circumferential direction, the positioning blocks 121 are clamped with the positioning slots 111 to form the positioning of the positioning plates 12 on the main body 11, and the flat spiral springs 3 are provided with pressing contact pins 31 along the, the pressing contact pin 31 presses between the positioning block 121 and the positioning slot 111 to form a spiral spring 3 fixed in the housing 1.

The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that the equivalent changes made in the claims of the present invention, such as equivalent products with similar processes and similar structures, are also included in the scope of the present invention.

Claims

1. A small-sized motor includes a housing, an output shaft is provided in the housing in an axial sliding manner, and the small-sized motor is characterized in that: the output shaft is further sleeved with a coil spring, and the peripheral surface of the coil spring is fixedly arranged in the shell.

2. A small-sized motor according to claim 1, wherein: the coil spring is a plane spiral spring or a cone-truncated spiral spring.

3. A small-sized motor according to claim 1, wherein: and magnetic pole pieces are arranged at two ends of the second magnetic piece.

4. A small-sized motor according to claim 1, wherein: and the output shaft is also fixedly provided with a mass block.

5. A small-sized motor according to claim 1, wherein: two coil springs are arranged at two ends of the shell, and a shaft sleeve is arranged between the coil springs and the output shaft.

6. A small-sized motor according to claim 1, wherein: the end part of the first magnetic part is provided with a magnetic ring.

7. The small-sized motor according to any one of claims 1 to 6, wherein: first magnetic part is first fixed coil and second fixed coil, first fixed coil and second fixed coil set up along the output shaft axial, the magnetic pole syntropy of first fixed coil and second fixed coil sets up, second magnetic part is ring magnet, the fixed cover of ring magnet is established on the output shaft and is set up between first fixed coil and second fixed coil.

8. The small-sized motor according to any one of claims 1 to 6, wherein: the first magnetic part is a first fixed magnet and a second fixed magnet, magnetic poles of the first fixed magnet and the second fixed magnet are arranged in the same direction, the first fixed magnet and the second fixed magnet are arranged outside the output shaft in a surrounding mode, the second magnetic part is an installation coil, the installation coil is arranged on the output shaft in a wrapping mode, and the installation coil is arranged between the first fixed magnet and the second fixed magnet.

9. The small-sized motor according to any one of claims 1 to 6, wherein: the first magnetic part is a first conversion coil and a second conversion coil, the first conversion coil and the second conversion coil are arranged along the circumferential direction of the output shaft, the magnetic poles of the first conversion coil and the second conversion coil are arranged in the same direction, the second magnetic part is a third conversion coil, the third conversion coil is wound on the output shaft, and the magnetic poles of the first conversion coil and the second conversion coil or the magnetic poles of the third conversion coil are converted to realize the driving of the output shaft to slide along the axial direction of the shell.