CN209982304U

CN209982304U - Electric machine

Info

Publication number: CN209982304U
Application number: CN201920828682.3U
Authority: CN
Inventors: 陈召宪; 毛路斌; 张子洁
Original assignee: Ruisheng Technology Nanjing Co Ltd
Current assignee: Ruisheng Technology Nanjing Co Ltd
Priority date: 2019-06-03
Filing date: 2019-06-03
Publication date: 2020-01-21
Anticipated expiration: 2029-06-03

Abstract

The utility model provides a motor, including having the shell of acceping the chamber, locate the vibration subassembly of acceping the intracavity, be fixed in the coil pack of shell and be used for hanging the vibration subassembly and locate the elastic component of acceping the intracavity, the coil pack includes iron core and coil, the iron core includes first end, second end and connect the connecting portion between first end and second end, the coil is around locating the outside of connecting portion, one side that the second end was kept away from to first end is equipped with first inclined plane, the vibration subassembly is including the quality piece that is equipped with the mounting hole, be located yoke and the magnet steel of a plurality of installation in the mounting hole inboard in the yoke, the magnet steel sets up around the coil pack, the magnet steel that is close to first inclined plane is equipped with second inclined plane and the polarization direction perpendicular to second inclined plane parallel with. The utility model discloses a motor, coil circular telegram back, the drive power that the vibration subassembly received two directions to all form effective vibration in two directions, widened the operating band of motor, also richened the vibration effect of motor.

Description

Electric machine

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electromagnetic motion technical field especially relates to a motor.

[ background of the invention ]

A motor is a component that converts electric energy into mechanical energy using a generation principle of electromagnetic force, and is often installed in electronic products such as a portable phone to generate a silent feedback signal. However, the existing vibration motor can only generate driving force in one direction, and only one vibration mode can be utilized, so that the working frequency band of the vibration motor is narrow, and the vibration experience is single.

There is therefore a need for a motor that overcomes the above problems.

[ Utility model ] content

The utility model discloses to solve current vibrating motor and can only produce the drive power of a direction and the operating frequency band that leads to is narrow, the single problem is experienced in the vibration, and provide a neotype motor.

In order to achieve the above object, the present invention provides an electric machine comprising a housing having a receiving chamber, a vibration assembly disposed in the receiving chamber, a coil assembly fixed to the housing, and an elastic member for suspending the vibration assembly in the receiving chamber, the coil assembly includes a core and a coil, the core includes a first end portion, a second end portion, and a connection portion connected between the first end portion and the second end portion, the coil is wound on the outer side of the connecting part, a first inclined plane is arranged on one side of the first end part far away from the second end part, the vibration component comprises a mass block provided with a mounting hole, a magnetic yoke positioned in the mounting hole and a plurality of magnetic steels arranged on the inner side of the magnetic yoke, the magnetic steel surrounds the coil assembly, and the magnetic steel close to the first inclined plane is provided with a second inclined plane parallel to the first inclined plane, and the polarization direction of the second inclined plane is perpendicular to the second inclined plane.

As an improvement, one side of the second end part far away from the first end part is provided with a third inclined plane, the magnetic steel close to the third inclined plane is provided with a fourth inclined plane parallel to the third inclined plane, and the polarization direction of the magnetic steel is perpendicular to the fourth inclined plane.

As a refinement, the first slope and the third slope are parallel to each other.

As an improvement, the magnetic steel close to the first inclined plane and the third inclined plane has a gradually changing thickness.

As an improvement, the side wall of the mounting hole facing the first inclined plane and the third inclined plane is an inclined side wall, and the magnetic steel close to the first inclined plane and the third inclined plane has a uniform thickness.

As an improvement, the magnetic yoke includes four magnetizers and the four magnetizers are respectively arranged on four side walls of the mounting hole, and each magnetizer is provided with one magnetic steel.

As an improvement, the number of the elastic members is two, and each of the elastic members includes a first connecting portion connected to the mass block, a second connecting portion connected to the housing, and a main body portion connecting the first connecting portion and the second connecting portion.

As an improvement, the cross section of the mounting hole is square, the two elastic members are respectively located at two opposite sides of the mounting hole, and two ends of the mass block located at one diagonal of the mounting hole are respectively and fixedly connected to the first connecting portions of the two elastic members.

As an improvement, a first buffer member is arranged at a position where the first connecting portion is opposite to the housing and a position where the second connecting portion is opposite to the mass block.

As an improvement, a second buffer is arranged between the main body part and the mass block.

The utility model has the advantages that: through set up first inclined plane on first end, set up the second inclined plane parallel with first inclined plane on the magnet steel, the polarization direction perpendicular to second inclined plane of magnet steel for the vibration subassembly receives the drive power of two directions simultaneously, thereby can both form effective vibration in two directions, has widened the operating band of motor, has also richened the vibration effect of motor.

[ description of the drawings ]

Fig. 1 is a schematic perspective view illustrating an assembled motor according to a first embodiment of the present invention;

FIG. 2 is an exploded schematic view of the motor shown in FIG. 1;

FIG. 3 is a top view of the motor shown in FIG. 1 without the first cover plate and the second cover plate installed;

FIG. 4 is a schematic structural view of the vibration assembly shown in FIG. 3;

FIG. 5 is a schematic structural view of the mass shown in FIG. 3;

fig. 6 is a schematic view of the core shown in fig. 2;

FIG. 7 is a schematic view of the elastic member shown in FIG. 2;

fig. 8 is an assembly diagram of the vibration assembly and the coil assembly according to the second embodiment of the present invention.

[ detailed description ] embodiments

The present invention will be described in detail with reference to fig. 1 to 8.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, back, inner, outer, top, bottom … …) in the embodiments of the present invention are only used to explain the relative position between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

The first embodiment is as follows:

referring to fig. 1 and 2, a motor 100 according to an embodiment of the present invention includes a housing 10, a vibration element 20, a coil element 30, an elastic element 40, a first buffer element 50, and a second buffer element 60.

The housing 10 includes a first cover plate 11, a second cover plate 12 and a frame 13, the first cover plate 11 and the second cover plate 12 are parallel to the vibration direction of the vibration element 20, two ends of the frame 13 are respectively connected to the first cover plate 11 and the second cover plate 12 to form an accommodation cavity 14, and the vibration element 20, the coil element 30, the elastic element 40, the first buffer element 50 and the second buffer element 60 are accommodated in the accommodation cavity 14. Two ends of the first cover plate 11 are respectively provided with an extension portion 111, wherein one extension portion 111 is provided with a through hole 112, and the other extension portion 111 is provided with two through holes 112, so as to mount the motor 100 to an external device. Of course, in a specific application, the number of the extension portions 111 is not limited to this, for example, it is also possible to provide one or more extension portions 111, and the number of the through holes 112 on the extension portions 111 is not limited.

Referring to fig. 2, 3 and 6, the coil assembly 30 includes an iron core 31 and a coil 32 wound on the iron core 31, and an insulating member is disposed between the coil 32 and the iron core 31. The core 31 includes a first end 311, a second end 312, and a connection portion 313 between the first end 311 and the second end 312. Preferably, the first end portion 311, the second end portion 312 and the connecting portion 313 are separately molded and then assembled together, the first end portion 311 and the second end portion 312 are provided with connecting holes, two ends of the connecting portion 313 are fixedly connected into the connecting holes, the coil 32 is wound around the outer side of the connecting portion 313 and fixed between the first end portion 311 and the second end portion 312, two opposite sides of the first end portion 311 and the second end portion 312 are respectively provided with a first inclined surface 3111 and a third inclined surface 3121, the first inclined surface 3111 and the third inclined surface 3121 are inclined with respect to the axial direction of the coil 32, and the first inclined surface 3111 and the third inclined surface 3121 are parallel to each other. The iron core 31 is made of a magnetic conductive material, and preferably, is formed by stacking silicon steel sheets in an axial direction of the coil 32, and the first end portion 311 and the second end portion 312 are stacked by silicon steel sheets having different heights, respectively, to form a first inclined surface 3111 and a third inclined surface 3121. It is understood that the core 31 may also be made by powder metallurgy.

Referring to fig. 3 and 4, the vibration assembly 20 includes a mass block 21, a magnetic yoke 22 and magnetic steels 23, a mounting hole 24 having a square cross-sectional shape is formed at a central position of the mass block 21, the magnetic yoke 22 includes four magnetic conductors, each of the magnetic conductors is generally made of soft iron having a high magnetic permeability, the four magnetic conductors are respectively disposed on four sidewalls of the mounting hole 24, each of the magnetic steels 23 is respectively disposed on one of the magnetic conductors, two of the magnetic steels 23 opposite to the first end 311 and the second end 312 of the iron core 31 are respectively disposed with a second inclined surface 231 and a fourth inclined surface 232, that is, the third inclined surface 3121 is opposite to and parallel to the first inclined surface 3111, and the second inclined surface 231 is opposite to and parallel to the fourth inclined surface 232. The polarization direction of the magnetic steel 23 provided with the second inclined surface 231 is perpendicular to the second inclined surface 231, and the polarization direction of the magnetic steel 23 provided with the fourth inclined surface 232 is perpendicular to the fourth inclined surface 232. Thus, after the coil 32 is energized, the vibration assembly 20 receives a driving force perpendicular to the second inclined surface 231 and the fourth inclined surface 232, and the driving force includes a component in the horizontal direction, i.e., the X direction, and a component in the vertical direction, i.e., the Y direction, so that effective vibration can be formed in both the X direction and the Y direction, thereby realizing bidirectional vibration output of the motor 100, widening the operating frequency band of the motor 100, enriching the vibration effect of the motor 100, and controlling the magnitude of each driving force component by controlling the inclination degree of the second inclined surface 231 and the fourth inclined surface 232. In the present embodiment, the magnetic steel 23 provided with the second inclined surface 231 and the fourth inclined surface 232 has a gradually changing thickness.

Referring to fig. 3 and 7, the elastic members 40 of the present invention are U-shaped, and two elastic members 40 are provided, and are respectively located at two opposite sides of the mounting hole 24, each of the two elastic members 40 includes a first connecting portion 41, a second connecting portion 42 and a main body portion 43, preferably, the cross section of the mass block 21 is square, two ends of the mass block 21 located at one diagonal of the mounting hole 24 are respectively and fixedly connected to the two first connecting portions 41, the second connecting portion 42 of the elastic member 40 is connected to the frame 13 of the housing 10, the main body portion 43 of the elastic member 40 is respectively located in a gap between two ends of the mass block 21 and two ends of the frame 13, and the width of the gap between two ends of the mass block 21 and two ends of the frame 13 is greater than the amplitude. This connection is such that the oscillating assembly 20 is suspended within the housing 10 by the elastic member 40, the elastic member 40 serving to restore the oscillating assembly 20. Preferably, a first buffer 50 is provided at the opposite of the elastic member 40 from the mass 21 and the housing 10 to prevent an excessive impact.

Referring to fig. 3, 4 and 5, the mass 21 of the present invention has a substantially square cross-sectional shape, the elastic piece comprises a first end face 211 and a second end face 212 which are respectively opposite to a first cover plate 11 and a second cover plate 12 of the shell 10 and a side face 213 connected between the first end face 211 and the second end face 212, wherein the side face 213 is provided with a recessed portion 2131 corresponding to a first connecting portion 41 and a second connecting portion 42 of the elastic piece 40, the first connecting portion 41 and the second connecting portion 42 of the elastic piece 40 and the first buffer piece 50 are accommodated in the recessed portion 2131, two ends of the first end face 211 and the second end face 212, which are close to a main body portion 43 of the elastic piece 40, are provided with grooves 214, each groove 214 is provided with a second buffer piece 60, and the second buffer pieces 60 can be made of elastic materials such as silica gel, rubber, foam and the like and are used for preventing the mass block 21 from directly impacting the elastic piece 40.

Example two:

the embodiment of the utility model provides a motor, difference with embodiment one mainly lies in:

referring to fig. 8, the structure of the vibration assembly in this embodiment is different from that in the first embodiment, the second inclined surface 215 and the fourth inclined surface 216 parallel to the first inclined surface 3111 and the third inclined surface 3121 are disposed on two side walls of the mass block of the vibration assembly in this embodiment, so that only the yoke with uniform thickness and the magnetic steel with uniform thickness are disposed on the second inclined surface 215 and the fourth inclined surface 216, and therefore, the magnetic steel can be made of a thinner magnetic steel sheet, the structure of the magnetic steel is simplified, and the processing of the magnetic steel is facilitated.

The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.

Claims

1. A motor is characterized by comprising a shell with a containing cavity, a vibration component arranged in the containing cavity, a coil component fixed on the shell and an elastic component used for suspending the vibration component in the containing cavity, the coil assembly includes a core and a coil, the core includes a first end portion, a second end portion, and a connection portion connected between the first end portion and the second end portion, the coil is wound on the outer side of the connecting part, a first inclined plane is arranged on one side of the first end part far away from the second end part, the vibration component comprises a mass block provided with a mounting hole, a magnetic yoke positioned in the mounting hole and a plurality of magnetic steels arranged on the inner side of the magnetic yoke, the magnetic steel surrounds the coil assembly, and the magnetic steel close to the first inclined plane is provided with a second inclined plane parallel to the first inclined plane, and the polarization direction of the second inclined plane is perpendicular to the second inclined plane.

2. The motor of claim 1, wherein a third inclined surface is disposed on a side of the second end portion away from the first end portion, and a fourth inclined surface parallel to the third inclined surface is disposed on the magnetic steel close to the third inclined surface, and a polarization direction of the magnetic steel is perpendicular to the fourth inclined surface.

3. The electric machine of claim 2, wherein the first and third ramps are parallel to each other.

4. The electric machine of claim 2, wherein the magnetic steel proximate the first and third ramps has a gradual thickness.

5. The electric machine of claim 2, wherein the side walls of the mounting holes facing the first and third ramps are sloped side walls, and the magnetic steel adjacent the first and third ramps has a uniform thickness.

6. The electric machine according to claim 1, wherein the yoke comprises four magnetic conductors and the four magnetic conductors are respectively disposed on four side walls of the mounting hole, and each magnetic conductor is disposed with one magnetic steel.

7. The electric machine according to claim 1, wherein there are two of the elastic members, and each of the elastic members includes a first connecting portion connected to the mass, a second connecting portion connected to the housing, and a main body portion connecting the first connecting portion and the second connecting portion.

8. The electric machine according to claim 7, wherein the cross-sectional shape of the mounting hole is square, the two elastic members are respectively located at two opposite sides of the mounting hole, and two ends of the mass block located at one diagonal of the mounting hole are respectively fixedly connected to the first connecting portions of the two elastic members.

9. The electric machine of claim 8, wherein a first buffer is disposed at a portion of the first connecting portion opposite to the housing and at a portion of the second connecting portion opposite to the mass.

10. The electric machine of claim 7 wherein a second buffer is disposed between said body portion and said mass.