CN212305098U

CN212305098U - Magnet damping linear motor

Info

Publication number: CN212305098U
Application number: CN202021845663.0U
Authority: CN
Inventors: 聂鹏举; 刘辉; 黎平; 伍毅; 罗铁志; 朱勇民
Original assignee: Shenzhen Kelier Motor Co ltd
Current assignee: Shenzhen Kelier Motor Co ltd
Priority date: 2020-08-30
Filing date: 2020-08-30
Publication date: 2021-01-05
Anticipated expiration: 2030-08-30

Abstract

The utility model discloses a magnet damping linear motor, including casing (1) to and set up stator module (200) and runner assembly (100) in casing (1), stator module (200) include F-PCB (9), coil (8), support (11), runner assembly (100) include tungsten block (7), driving magnet (4), insert (12), spring leaf (5) and yoke (3). The coil (8) and the F-PCB (9) are fixedly connected to a bracket (11) of the linear motor; the tungsten block (7) and the driving magnet (4) are fixedly connected together, the damping magnet (2) is arranged in the machine shell (1), and a repulsive force is generated between the damping magnet (2) and the driving magnet (4). The utility model discloses utilize magnet damping structure and control method, solve solid-state and liquid damping and cause the instability of motor performance to the sensitivity of temperature.

Description

Magnet damping linear motor

Technical Field

The utility model relates to an electric machine, concretely relates to magnet damping linear motor.

Background

Because the linear motor is the characteristic of simple harmonic vibration, when the motor is powered off, the rotor can also vibrate freely, and the rotor can stop after a certain time to generate residual vibration, so that the user experience is seriously influenced in various application scenes, and the touch experience of the user on the mobile phone can be reduced when the linear motor is applied to the mobile phone. The materials used in the existing braking technologies of linear motors are mostly classified into liquid (magnetic liquid) or solid (silica gel or foam), and these materials are sensitive to temperature, and when the temperature is low or high, the physical properties of the materials are changed, so that the braking time is very unstable.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a magnet damping linear motor utilizes magnet damping structure and control method, solves the instability that solid-state and liquid damping caused the motor performance to the sensitivity of temperature.

The utility model discloses a realize through following technical scheme: a magnet damping linear motor comprises a casing, a stator assembly and a rotor assembly, wherein the stator assembly and the rotor assembly are arranged in the casing, the stator assembly comprises an F-PCB (printed circuit board), a coil and a support, the rotor assembly comprises a tungsten block, a driving magnet, an insert, a spring piece and a yoke, and the coil and the F-PCB are fixedly connected to the support of the linear motor; the tungsten block is fixedly connected with the driving magnet, the damping magnet is arranged in the machine shell, and a repulsive force is generated between the damping magnet and the driving magnet.

According to the preferable technical scheme, the two spring pieces are arranged on two sides of the tungsten block respectively, the embedded blocks are embedded in the tungsten block, one end of each spring piece is connected with the tungsten block through the embedded blocks, the other end of each spring piece is in contact support with the inside of the machine shell, and the spring pieces support the tungsten block to be parallel.

As a preferable technical scheme, the spring piece is in a V shape, and more than one stop block is arranged on the spring piece.

As the preferred technical scheme, two stop blocks are arranged on each spring piece and are arranged on the opposite surfaces of the opening ends of the spring pieces.

As a preferred technical scheme, the tungsten block is provided with an insert mounting groove, and the insert part is installed in the insert mounting groove.

As a preferable technical scheme, a reserved space is arranged on the tungsten block, and the driving magnet is installed in the reserved space.

As a preferable technical scheme, the damping magnet is provided with more than one block, the more than one block of damping magnet is arranged at any position in the shell, and a repulsive force is generated between the damping magnet and the driving magnet.

As a preferred technical solution, the driving magnets are arranged in a halbach array.

The utility model has the advantages that: the utility model discloses an utilize the magnet homopolar repulsion, the principle that the heteropolar is inhaled mutually and the damping control of design, the active cell has just got into free simple harmonic vibration stage after the motor outage, and damping magnet is the simple harmonic motion of anti drive magnet always, increases its resistance, consumes the energy of simple harmonic motion fast, makes its can the rapid braking, the dead time of the motor that significantly reduces.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

FIG. 2 is a schematic view of the spring plate and the stopper of the present invention;

fig. 3 is a schematic structural view of a stator assembly of the present invention;

fig. 4 is a schematic structural diagram of the mover assembly of the present invention;

fig. 5 is a schematic structural view of the damping magnet of the present invention after being installed inside the casing;

FIG. 6 is a first magnetic circuit diagram of the damping magnet and the driving magnet;

FIG. 7 is a second magnetic circuit diagram of the damping magnet and the driving magnet;

FIG. 8 is a third magnetic circuit diagram of the damping magnet and the driving magnet;

fig. 9 is a fourth magnetic circuit diagram of the damper magnet and the drive magnet.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "the outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element 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, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The use of terms herein such as "upper," "above," "lower," "below," and the like in describing relative spatial positions is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly

In the present invention, unless otherwise explicitly specified or limited, the terms "set", "coupled", "connected", "penetrating", "plugging", and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1, fig. 3 and fig. 4, the magnet damping linear motor of the present invention includes a casing 1, and a stator assembly 200 and a mover assembly 100 disposed in the casing 1, wherein the stator assembly 200 includes an F-PCB9, a coil 8, and a bracket 11, the mover assembly 100 includes a tungsten block 7, a driving magnet 4, an insert 12, a spring plate 5, and a yoke 3, and the coil 8 and the F-PCB9 are fixedly connected to the bracket 11 of the linear motor; the tungsten block 7 is fixedly connected with the driving magnet 4, the damping magnet 2 is arranged in the machine shell 1, and a repulsive force is generated between the damping magnet 2 and the driving magnet 4.

In this embodiment, the spring strips 5 are arranged in two pieces, which are respectively arranged on two sides of the tungsten block 7, the insert 12 is embedded in the tungsten block 7, one end of the spring strip 5 is connected with the tungsten block 7 through the insert 12, the other end of the spring strip 5 is supported in contact with the inside of the casing 1, the tungsten block 7 is supported by the spring strip 5 in parallel, the spring strip 5 is in a "V" shape, as shown in fig. 2, more than one stop block 6 is arranged on the spring strip 5. Each spring piece 5 is provided with two stop blocks 6, and the two stop blocks 6 are arranged on the opposite surfaces of the opening ends of the spring pieces 5. The spring piece is prevented from breaking by using the stop block on the spring piece, so that the service life of the spring piece is prolonged.

In this embodiment, the tungsten block 7 is provided with an insert mounting groove, and the insert 12 is partially installed in the insert mounting groove.

The tungsten block 7 is provided with a reserved space, and the driving magnet 4 is arranged in the reserved space, so that the tungsten block can make horizontal simple harmonic motion to generate a vibration effect.

In this embodiment, the damping magnets 2 are provided in more than one block, the more than one damping magnets 2 are installed at any position inside the casing 1, an opposing force is generated between the damping magnets 2 and the driving magnet 4, the number and the installation position of the damping magnets are not particularly limited in this embodiment, and the installation position and the polarity of the damping magnets can be installed at any position, as shown in fig. 6 to 9.

In this embodiment, the drive magnets are arranged in a halbach array mode, which can increase the magnetic induction intensity and improve the utilization rate of the permanent magnet.

The utility model discloses an utilize the magnet homopolar repulsion, the principle that the heteropolar is inhaled mutually and the damping control of design, the active cell has just got into free simple harmonic vibration stage after the motor outage, and damping magnet is the simple harmonic motion of anti drive magnet always, increases its resistance, consumes the energy of simple harmonic motion fast, makes its can the rapid braking, the dead time of the motor that significantly reduces.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. A magnet damped linear motor, comprising: the linear motor comprises a machine shell (1), and a stator assembly (200) and a rotor assembly (100) which are arranged in the machine shell (1), wherein the stator assembly (200) comprises an F-PCB (9), a coil (8) and a support (11), the rotor assembly (100) comprises a tungsten block (7), a driving magnet (4), an insert (12), a spring leaf (5) and a yoke (3), and the coil (8) and the F-PCB (9) are fixedly connected to the support (11) of the linear motor; the tungsten block (7) and the driving magnet (4) are fixedly connected together, the damping magnet (2) is arranged in the machine shell (1), and a repulsive force is generated between the damping magnet (2) and the driving magnet (4).

2. A magnet-damped linear motor according to claim 1, wherein: the spring pieces (5) are arranged into two pieces and are respectively arranged on two sides of the tungsten block (7), the embedded blocks (12) are embedded in the tungsten block (7), one end of each spring piece (5) is connected with the tungsten block (7) through the embedded blocks (12), the other end of each spring piece (5) is in contact support with the inside of the shell (1), and the spring pieces (5) support the tungsten block (7) in parallel.

3. A magnet-damped linear motor according to claim 2, wherein: the spring piece (5) is V-shaped, and more than one stop block (6) is arranged on the spring piece (5).

4. A magnet damped linear motor as claimed in claim 3, wherein: two stop blocks (6) are arranged on each spring piece (5), and the two stop blocks (6) are arranged on the opposite surfaces of the opening ends of the spring pieces (5).

5. A magnet-damped linear motor according to claim 2, wherein: the tungsten block (7) is provided with an insert mounting groove, and the insert (12) is partially arranged in the insert mounting groove.

6. A magnet-damped linear motor according to claim 1, wherein: a reserved space is formed in the tungsten block (7), and the driving magnet (4) is installed in the reserved space.

7. A magnet-damped linear motor according to claim 1, wherein: the damping magnet (2) is arranged to be more than one, the damping magnet (2) is arranged at any position inside the machine shell (1), and a repulsive force is generated between the damping magnet (2) and the driving magnet (4).

8. A magnet-damped linear motor according to claim 1, wherein: the driving magnets are arranged in a Halbach array mode.