CN212572351U

CN212572351U - Electromagnetic damping linear motor

Info

Publication number: CN212572351U
Application number: CN202021845669.8U
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: 2021-02-19
Anticipated expiration: 2030-08-30

Abstract

The utility model discloses an electromagnetic damping linear motor, including casing (1) to and install stator module and active cell subassembly in casing (1), stator module includes F-PCB (11), coil (9) and support (12), active cell subassembly includes tungsten block (5), driving magnet (8), spring leaf (6), yoke (4) and stopper (7) more than, and coil (9) and F-PCB (11) fixed connection are on linear motor's support (12), and tungsten block (5) and driving magnet (8) fixed connection are in the same place, are provided with two sets of damping structure (100) between tungsten block (5) and casing (1). The utility model discloses utilize electromagnetic damping structure and control method, solve solid-state and liquid damping and cause the instability of motor performance to the sensitivity of temperature.

Description

Electromagnetic damping linear motor

Technical Field

The utility model relates to a motor, concretely relates to electromagnetic 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 an electromagnetic damping linear motor utilizes electromagnetic damping structure and control method, solves the instability that solid-state and liquid damping caused the motor performance to the sensitivity of temperature, solves not enough among the prior art.

The utility model discloses a realize through following technical scheme: the utility model provides an electromagnetic damping linear motor, includes the casing to and install stator module and active cell subassembly in the casing, stator module includes F-PCB, coil and support, active cell subassembly includes tungsten piece, driving magnet, spring leaf, yoke and the stopper more than one, and coil and F-PCB fixed connection are on linear motor's support, and tungsten piece and driving magnet fixed connection are in the same place, are provided with two sets of damping structures between tungsten piece and the casing.

According to a preferable technical scheme, the damping structure comprises a damping conductor arranged on the inner wall surface of the shell, a damping magnet matched with the damping conductor is embedded in a tungsten block facing the damping conductor, and the damping magnet is not in contact with the damping conductor.

Preferably, the number of the damping conductors is 1+ N, and N is a natural number.

Preferably, the damping conductor is a closed conductor.

According to the preferable technical scheme, the number of the spring pieces is two, the spring pieces are connected between the tungsten block and the shell, the coil is located in the magnetic field range of the permanent magnet, and the spring pieces support the tungsten block to be parallel.

As the preferred technical scheme, the spring pieces are all provided with the stop blocks, one end of each spring piece is connected and supported on the tungsten block, the other end of each spring piece is in contact support with the inner wall of the shell, and the stop blocks are arranged on the opposite surfaces of the opening ends of the spring pieces.

Preferably, the spring piece is in a V shape as a whole.

As a preferred technical scheme, the tungsten block is provided with an installation slot position, and the damping magnet is embedded in the installation slot position.

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

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 stupefied theorem and the electromagnetic damping control that designs, active cell has just got into free simple harmonic vibration stage after the motor outage, damping permanent magnet cutting closed damping conductor, closed damping conductor will produce induced-current this moment, and the conductor can produce magnetic field force (ampere force) and always resist damping magnet and make horizontal simple harmonic motion in the return circuit when producing induced-current, makes its can the quick brake, the stop 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 internal assembly of the present invention;

fig. 3 is a schematic view of the internal cross section of the present invention.

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 and 2, the utility model discloses an electromagnetic damping linear motor, including casing 1 to and install stator module and the active cell subassembly in casing 1, stator module includes F-PCB11, coil 9 and support 12, the active cell subassembly includes tungsten piece 5, driving magnet 8, spring leaf 6, yoke 4 and the stopper 7 more than, and coil 9 and F-PCB11 fixed connection are on linear motor's support 12, and tungsten piece 5 and driving magnet 8 fixed connection are in the same place, are provided with two sets of damping structure 100 between tungsten piece 5 and the casing 1.

As shown in fig. 3, the damping structure 100 includes a damping conductor 2 disposed on an inner wall surface of the casing 1, and a damping magnet 3 is embedded in a tungsten block 5 facing the damping conductor 2 and is matched with the tungsten block, and the damping magnet 3 is not in contact with the damping conductor 2.

The electromagnetic damping control designed by utilizing the Lenz theorem is utilized, when the motor is powered off, the rotor enters a free simple harmonic vibration stage, the damping permanent magnet cuts the closed damping conductor, the closed damping conductor generates induced current, and the conductor can generate magnetic field force (ampere force) in a loop to always resist the damping magnet to do horizontal simple harmonic motion while generating the induced current, so that the motor can be quickly braked, and the stop time of the motor is greatly reduced.

In this embodiment, the number of damping conductors 2 is 1+ N, and N is a natural number, and the utility model discloses preferred is a damping conductor.

Wherein, damping conductor 2 is a section closed conductor, provides the brake function for linear electric motor through the damping structure.

In this embodiment, the number of the spring pieces 6 is two, the spring pieces 6 are connected between the tungsten block 5 and the casing 1, the coil 9 is located in the magnetic field range of the driving magnet 8, the tungsten block 5 supported by the spring pieces 6 is parallel, the spring pieces 6 are all provided with the stop blocks 7, one ends of the spring pieces 6 are connected and supported on the tungsten block 5, the other ends of the spring pieces 6 are in contact support with the inner wall of the casing 1, and the stop blocks 7 are arranged on the opposite surfaces of the opening ends of the spring pieces 6.

In this embodiment, the spring plate 6 is integrally formed in a V shape. Through the V-shaped spring piece and the stop block, the stress of the spring piece is reduced, the service life of the spring piece is prolonged, and the spring piece is more stable in use.

In this embodiment, the tungsten block 5 is provided with an installation slot, the damping magnet 3 is embedded in the installation slot, the tungsten block 5 is provided with a reserved space, and the driving magnet 8 is installed in the reserved space, so that the tungsten block can make horizontal simple harmonic motion to generate a vibration effect.

In this embodiment, the driving magnets 8 are arranged in a halbach array mode, so that the magnetic induction intensity can be increased, and the utilization rate of the permanent magnets can be improved.

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. An electromagnetically damped linear motor, characterized by: including casing (1) to and install stator module and active cell subassembly in casing (1), stator module includes F-PCB (11), coil (9) and support (12), active cell subassembly includes tungsten block (5), driving magnet (8), spring leaf (6), yoke (4) and stop block (7) more than, and coil (9) and F-PCB (11) fixed connection are on linear motor's support (12), and tungsten block (5) and driving magnet (8) fixed connection are in the same place, are provided with two sets of damping structure (100) between tungsten block (5) and casing (1).

2. An electromagnetically damped linear motor according to claim 1, wherein: the damping structure (100) comprises a damping conductor (2) arranged on the inner wall surface of the shell (1), a damping magnet (3) matched with the damping conductor (2) is embedded in a tungsten block (5) facing the damping conductor (2), and the damping magnet (3) is not in contact with the damping conductor (2).

3. An electromagnetically damped linear motor according to claim 2, wherein: the number of the damping conductors (2) is 1+ N, and N is a natural number.

4. An electromagnetically damped linear motor according to claim 2, wherein: the damping conductor (2) is a section of closed conductor.

5. An electromagnetically damped linear motor according to claim 1, wherein: the spring pieces (6) are arranged into two pieces, the spring pieces (6) are connected between the tungsten block (5) and the shell (1), the coil (9) is located in the magnetic field range of the driving magnet (8), and the spring pieces (6) support the tungsten block (5) to be parallel.

6. An electromagnetically damped linear motor according to claim 1, wherein: the spring piece (6) is provided with a stop block (7), one end of the spring piece (6) is connected and supported on the tungsten block (5), the other end of the spring piece (6) is in contact support with the inner wall of the shell (1), and the stop block (7) is arranged on the opposite surface of the opening end of the spring piece (6).

7. An electromagnetically damped linear motor according to claim 1 or 6, wherein: the spring piece (6) is integrally V-shaped.

8. An electromagnetically damped linear motor according to claim 1, wherein: the tungsten block (5) is provided with an installation slot position, and the damping magnet (3) is embedded in the installation slot position.

9. An electromagnetically damped linear motor according to claim 1, wherein: a reserved space is formed in the tungsten block (5), and the driving magnet (8) is installed in the reserved space.

10. An electromagnetically damped linear motor according to claim 1, wherein: the driving magnets (8) are arranged in a Halbach array mode.