CN211744222U

CN211744222U - Vibration motor

Info

Publication number: CN211744222U
Application number: CN202020642584.3U
Authority: CN
Inventors: 刘锐邦; 刘锐权
Original assignee: Dongguan Chang Ji Motor Co ltd
Current assignee: Dongguan Chang Ji Motor Co ltd
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2020-10-23
Anticipated expiration: 2030-04-24

Abstract

The utility model relates to the technical field of motors, in particular to a vibration motor, which comprises a casing, wherein the casing is a hollow casing with an opening at one end, a sealing pad is arranged at the opening position of the casing, a rotor is arranged in the casing, the power inlet end of the rotor is a group of electrodes, and the electrodes penetrate through the sealing pad; the electrodes are two metal guide sheets welded on the commutator, wherein one metal guide sheet is welded with the shell, and the other metal guide sheet is welded with a metal wire part arranged on the sealing pad. The utility model discloses the effect that has is: the electrodes of the vibration motor are not easily damaged.

Description

Vibration motor

Technical Field

The utility model belongs to the technical field of the technique of motor and specifically relates to a vibrating motor is related to.

Background

The motor is commonly called as a motor and refers to an electromagnetic device for realizing electric energy conversion or transmission according to the law of electromagnetic induction. The main function of the device is to generate driving torque, and the device is used as a power source of electrical appliances or various machines and is mainly used for converting electric energy into mechanical energy.

A coreless motor in the prior art is composed of a stator, a rotor, a commutator, an electric brush, a machine shell, a bearing and the like, wherein when the rotor is electrified, a magnetic field is generated and rotates under the attraction force or the repulsion force of the stator, the output end of the motor is fixedly connected with the rotor, and when the rotor rotates, the output end of the motor is driven to rotate, so that the electric energy is converted into the mechanical energy. The power input end of the rotor is a set of electrodes, and the conventional electrodes are generally two wires welded with the commutator.

Because the structural strength of wire is not high, easily disconnection in the use, when the wire breaks off from the root, need take the motor apart to welding wire, complex operation, consequently there is the space of improvement.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art existence, the utility model aims at providing a vibrating motor, its effect that has is: the electrodes of the vibration motor are not easily damaged.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a vibration motor comprises a machine shell, wherein the machine shell is a hollow shell with an opening at one end, a closed pad is arranged at the position, located at the opening, of the machine shell, a rotor is arranged in the machine shell, a group of electrodes are arranged at the power inlet end of the rotor, and the electrodes penetrate through the closed pad;

the electrodes are two metal guide sheets welded on the commutator, wherein one metal guide sheet is welded with the shell, and the other metal guide sheet is welded with a metal wire part arranged on the sealing pad.

By adopting the technical scheme, when the vibration motor is used, the shell and the metal conductive part are electrified, then the vibration motor starts to work, and the two metal guide pieces are respectively welded on the shell and the metal wire part, so that the metal guide pieces are not easy to damage, namely, the electrode of the vibration motor is not easy to damage, and the service life is long.

The utility model discloses further set up to: the metal wire part is a metal spring.

Through adopting above-mentioned technical scheme, metal spring has certain shock attenuation effect when having electric conductivity, consequently chooses for use metal spring as metal wire portion.

The utility model discloses further set up to: one side of the sealing pad, which is far away from the shell, is protruded with a sleeving part, and the metal wire part is sleeved on the sleeving part.

By adopting the technical scheme, the metal conductive part is convenient to mount and fix by arranging the sleeving part.

The utility model discloses further set up to: the sleeve joint part and the metal conductive part are gradually narrowed along the direction far away from the sealing pad.

By adopting the technical scheme, the installation of the metal conductive part is facilitated.

The utility model discloses further set up to: the casing internally mounted has the rotor, fixedly connected with pivot, the pivot runs through the casing and with the casing rotates to be connected, the riveting has the oscillator in the pivot, the focus of oscillator staggers each other with the axis of pivot.

Through adopting above-mentioned technical scheme, when the oscillator is rotatory, because the center of oscillator staggers each other with the axis of pivot, can produce centrifugal force when consequently the rotation of oscillator, and then drive the motor vibration.

The utility model discloses further set up to: the vibrator comprises a gravity center part and a connecting part, wherein the gravity center part is in a semi-cylindrical shape, and the connecting part is a square block connected with the rotating shaft and protrudes out of the gravity center part to form a planar side wall.

By adopting the technical scheme, the vibration frequency is stable when the vibrator rotates.

The utility model discloses further set up to: and a stop gasket is sleeved between the end faces of the oscillator and the shell of the rotating shaft.

Through adopting above-mentioned technical scheme, set up the backstop gasket, difficult slip during the rotation of oscillator avoids oscillator and casing collision.

The utility model discloses further set up to: the stop washer is a polyester stop washer.

Through adopting above-mentioned technical scheme, polyester backstop gasket is flexible material for the oscillator be difficult for and backstop gasket between wearing and tearing each other.

The utility model discloses further set up to: the sealing pad is provided with a plurality of fixing grooves in the circumferential direction, the casing is provided with a sunken part, and when the sealing pad is attached to the casing, the sunken part is attached to and locked with the fixing grooves.

Through adopting above-mentioned technical scheme, realize the locking of closing the pad.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the electrodes of the vibration motor are not easy to damage and have longer service life

2. When the vibrator rotates, because the center of the vibrator is staggered with the central axis of the rotating shaft, centrifugal force can be generated when the vibrator rotates, and then the motor is driven to vibrate.

Drawings

Fig. 1 is a front view of a motor according to an embodiment of the present invention in a transverse position;

fig. 2 is a left side view of an embodiment of the present invention;

fig. 3 is a right side view of an embodiment of the present invention;

fig. 4 is a cross-sectional view a-a of fig. 3.

In the figure, 1, a housing; 11. a recessed portion; 2. a sealing pad; 21. a socket joint part; 22. a metal conductive portion; 23. fixing grooves; 3. a rotating shaft; 31. a stopper spacer; 4. a vibrator; 41. a gravity center section; 42. a connecting portion.

Detailed Description

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

Referring to fig. 1, for the present invention discloses a vibration motor, which includes a casing 1, the casing 1 is a hollow shell with an open end, the open end of the casing 1 is used for installing internal components into the casing 1, in the illustrated embodiment, the casing 1 is cylindrical, and here is only an exemplary illustration, and the casing 1 can be adjusted according to actual production requirements. Casing 1 internally mounted has the stator, the rotor, commutator and brush (not shown in the figure), and the stator is two symmetries and installs the permanent magnet on casing 1 inner wall, and the rotor is a plurality of coils of rolling up together, and rotor central point puts fixedly connected with pivot 3, and the axis of pivot 3 coincides with casing 1's axis, and when the rotor circular telegram, because electromagnetic induction law, the rotor rotates, drives pivot 3 and rotates, realizes turning into mechanical energy with the electric energy.

Continuing to refer to fig. 1, a closed pad 2 is installed at the opening position of the casing 1, the power input end of the rotor is a group of electrodes, and the electrodes penetrate through the closed pad 2; the electrodes are two metal guide sheets welded on the commutator, wherein one metal guide sheet is welded with the casing 1, and the other metal guide sheet is welded with a metal wire part arranged on the sealing pad 2.

When the vibration motor is used, the casing 1 and the metal conductive part 22 are electrified, the vibration motor starts to work, and the two metal guide pieces are respectively welded on the casing 1 and the metal conductive part, so that the metal guide pieces are not easy to damage.

With continued reference to fig. 1, in the present embodiment, the metal wire portion is a metal spring. The metal spring has certain shock absorption effect while having conductivity, so the metal spring is selected as the metal wire part.

With reference to fig. 1, a side of the sealing pad 2 away from the housing 1 protrudes a sleeve portion 21, and the metal wire portion is sleeved on the sleeve portion 21. The sleeve-joint part 21 is arranged, so that the metal conductive part 22 is convenient to mount and fix and is not easy to shake. The sleeve portion 21 and the metal conductive portion 22 are gradually narrowed along the direction away from the sealing pad 2, when the metal conductive portion 22 is sleeved, the end with the larger opening of the metal spring faces the sleeve portion 21, and the end of the sleeve portion 21 away from the sealing pad 2 is narrower, so that the metal conductive portion 22 is conveniently sleeved into the sleeve portion 21.

The rotating shaft 3 penetrates through the casing 1 and is rotatably connected with the casing 1, in the embodiment, the insulating bearing is sleeved at the position, located on the casing 1, of the rotating shaft 3, and the insulating bearing is fixed on the casing 1, namely, the rotating shaft 3 is rotatably connected with the casing 1 through the mounting bearing. The rotary shaft 3 is riveted with the vibrator 4, the vibrator 4 is riveted on the rotary shaft 3 through an air compressor, the axial clearance between the rotary shaft 3 and the vibrator 4 is kept to be 0.05mm-0.30mm before riveting, the eccentric excircle straight line is basically parallel to the excircle straight line of the casing 1 after riveting, the rotary shaft 3 cannot be bent after riveting, and the gravity center of the vibrator 4 is staggered with the central axis of the rotary shaft 3. When the vibrator 4 rotates, because the center of the vibrator 4 and the central axis of the rotating shaft 3 are staggered, centrifugal force is generated when the vibrator 4 rotates, and then the motor is driven to vibrate.

Referring to fig. 2, specifically, the vibrator 4 includes a center of gravity portion 41 and a connection portion 42, the center of gravity portion 41 is in a semi-cylindrical shape, and the connection portion 42 is a square block connected to the rotating shaft 3 and protrudes above the center of gravity portion 41 to form a planar sidewall. When the vibrator 4 rotates, the vibration frequency is relatively stable.

Referring to fig. 3 and 4, a stop washer 31 is sleeved on the rotating shaft 3 between the vibrator 4 and the end surface of the casing 1. The stop gasket 31 is arranged, so that the vibrator 4 is not easy to slide during rotation, and the collision between the vibrator 4 and the machine shell 1 is avoided. The stop washer 31 is a polyester stop washer. The polyester stop pad 31 is made of a flexible material, so that the vibrator 4 and the stop pad 31 are not easily worn.

With continued reference to fig. 3 and 4, the sealing pad 2 is circumferentially provided with a plurality of fixing grooves 23, the casing 1 is provided with the recessed portions 11, in this embodiment, the number of the fixing grooves 23 is four, the position of the casing 1 facing the fixing grooves 23 is recessed toward the direction of the fixing grooves 23 to form the recessed portions 11, in the direction shown in the figure, the fixing grooves 23 are gradually narrowed from top to bottom, and when the sealing pad 2 is attached to the casing 1, the recessed portions 11 and the fixing grooves 23 are attached to lock the sealing pad 2.

The implementation principle of the embodiment is as follows:

when the vibration motor is used, the machine shell 1 and the metal conducting part 22 are electrified, the vibration motor starts to work, and the two metal conducting pieces are respectively welded on the machine shell 1 and the metal conducting part, so that the metal conducting pieces are not easy to damage, namely, the electrodes of the vibration motor are not easy to damage, and the service life is long.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A vibration motor characterized by: the device comprises a machine shell (1), wherein the machine shell (1) is a hollow shell with an opening at one end, a closed gasket (2) is arranged at the opening position of the machine shell (1), a rotor is arranged in the machine shell (1), the power inlet end of the rotor is a group of electrodes, and the electrodes penetrate through the closed gasket (2);

the electrodes are two metal guide sheets welded on the commutator, wherein one metal guide sheet is welded with the shell (1), and the other metal guide sheet is welded with a metal conductive part (22) arranged on the sealing pad (2).

2. A vibration motor according to claim 1, wherein: the metal conductive part (22) is a metal spring.

3. A vibration motor according to claim 2, wherein: one side, far away from the shell (1), of the sealing pad (2) protrudes to form a sleeving part (21), and the metal conductive part (22) is sleeved on the sleeving part (21).

4. A vibration motor according to claim 3, wherein: the sleeving part (21) and the metal conductive part (22) are gradually narrowed along the direction far away from the sealing pad (2).

5. A vibration motor according to claim 1, wherein: casing (1) internally mounted has the rotor, fixedly connected with pivot (3), pivot (3) run through casing (1) and with casing (1) rotate to be connected, the riveting has oscillator (4) on pivot (3), the focus of oscillator (4) staggers each other with the axis of pivot (3).

6. A vibration motor according to claim 5, wherein: the vibrator (4) comprises a gravity center part (41) and a connecting part (42), the gravity center part (41) is in a semi-cylindrical shape, and the connecting part (42) is a square block connected with the rotating shaft (3) and protrudes out of the gravity center part (41) to form a planar side wall.

7. A vibration motor according to claim 6, wherein: and a stop gasket (31) is sleeved between the end faces of the rotating shaft (3) positioned between the vibrator (4) and the casing (1).

8. A vibration motor according to claim 7, wherein: the stop washer (31) is a polyester stop washer.

9. A vibration motor according to any one of claims 1 to 8, wherein: the sealing pad (2) is circumferentially provided with a plurality of fixing grooves (23), the casing (1) is provided with a sunken part (11), and when the sealing pad (2) is attached to the casing (1), the sunken part (11) is attached to and locked with the fixing grooves (23) to form the sealing pad (2).