CN110957881A - Low-magnetic-leakage horizontal linear motor and implementation method thereof - Google Patents
Low-magnetic-leakage horizontal linear motor and implementation method thereof Download PDFInfo
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- CN110957881A CN110957881A CN201911365848.3A CN201911365848A CN110957881A CN 110957881 A CN110957881 A CN 110957881A CN 201911365848 A CN201911365848 A CN 201911365848A CN 110957881 A CN110957881 A CN 110957881A
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- horizontal linear
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 22
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 230000005684 electric field Effects 0.000 claims description 8
- 239000012634 fragment Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims 1
- 230000000712 assembly Effects 0.000 abstract description 6
- 238000000429 assembly Methods 0.000 abstract description 6
- 238000013016 damping Methods 0.000 description 9
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- 239000000463 material Substances 0.000 description 7
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- 238000003466 welding Methods 0.000 description 3
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- 229910001220 stainless steel Inorganic materials 0.000 description 2
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- 229920000742 Cotton Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/12—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moving in alternate directions by alternate energisation of two coil systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/02—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
Abstract
The invention discloses a horizontal linear motor with low magnetic leakage, which comprises a shell, wherein a lower bracket is connected below the shell, a first stator component is connected at the top end inside the shell, a second stator component is connected above the lower bracket, the structures of the lower bracket and the second stator component are the same, a vibrator component is arranged inside the shell, and two ends of the vibrator component are connected with the shell through elastic sheets; the invention also discloses a method for realizing the horizontal linear motor with low magnetic leakage; according to the invention, the stator assemblies are respectively arranged at the top end in the shell and above the lower bracket, the coils on the two stator assemblies are connected through the conducting wire, the current directions are the same, and the driving force in the horizontal direction is superposed and increased, so that a larger driving force is obtained.
Description
Technical Field
The invention belongs to the technical field of linear motors, and particularly relates to a horizontal linear motor with low magnetic leakage and an implementation method thereof.
Background
The linear motor mainly provides damping through the magnetic fluid, but the magnetic fluid is limited by material characteristics, so that the damping states provided at different temperatures are greatly different, and the linear motor is not favorable for stable product performance and use under severe temperature conditions. In the face of this problem, there are two main approaches: one is to adjust the motor drive at the terminal through a feedback element; the other is to find a material which is not sensitive to temperature change to replace magnetic liquid, such as silica gel, foam and other materials. The former has higher requirement on the technical capability of the terminal and high cost, and the actual effect is not ideal due to the performance difference among products. The latter reduces the influence of temperature, but still has variation, and has the problems of damping material ageing, influencing product life, increasing the vibration loudness of products and the like. It is important to find new damping types. With the application of new technologies such as 5G and under-screen sounding, the requirement for electromagnetic interference is more and more strict. The magnetic leakage of the mainstream product of the linear motor can not meet the requirements of customers more and more, and the reduction of the magnetic leakage also becomes a big problem for looking for solutions all the time in the industry on the premise of ensuring high vibration inductance.
Disclosure of Invention
The present invention has been made to solve the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide a horizontal linear motor with low leakage flux. The horizontal linear motor with low magnetic leakage provided by the invention has the characteristics of reducing the magnetic leakage on the premise of keeping the vibration inductance, reducing the motor stopping time through electromagnetic damping, along with strong manufacturability and high space utilization rate.
Another object of the present invention is to provide a method for implementing a horizontal linear motor with low leakage flux.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a horizontal linear motor of low magnetic leakage, includes the casing, and the below of casing is connected with the bottom bracket, and the inside top of casing is connected with first stator subassembly, and the top of bottom bracket is connected with second stator module, and the bottom bracket is the same with second stator module's structure, and the inside of casing is equipped with vibrator subassembly, and the shell fragment is passed through at vibrator subassembly's both ends and is connected with the casing.
Further, the first stator assembly comprises a circuit board and a coil, wherein the circuit board is connected to the top end inside the casing, the coil is connected to the circuit board, and the coil is electrically connected to the circuit board.
Further, a magnetic conduction plate is connected between the circuit board and the shell.
Further, the coil is internally embedded with an iron core.
Further, the vibrator component comprises magnetic steel and a mass block, wherein two pieces of magnetic steel which are arranged in parallel are embedded and connected in the mass block.
In the invention, two opposite sides of the connecting arm of the elastic sheet are respectively connected with a blocking piece.
Furthermore, the lower bracket is connected with limiting blocks on two sides of the second stator assembly respectively.
Further, in the present invention, the casing and the lower bracket are both magnetically conductive members.
Further, the method for implementing the horizontal linear motor with low magnetic leakage comprises the following steps:
the shell and the lower bracket form a closed cavity for accommodating the internal vibrator component;
the vibrator component comprises a mass block and magnetic steel, and the magnetic steel provides a magnetic field for driving the motor;
the top end in the shell is connected with a first stator component, a second stator component is connected above the lower bracket, the first stator component and the second stator component have the same structure, a circuit board and a coil form a circuit, an electric field is formed when the circuit board and the coil are electrified, the electric field and the magnetic field interact with each other, and the motor is driven to vibrate along the X axis;
the elastic sheet is connected with the shell and the vibrator component and provides elasticity for movement, so that the vibrator component reciprocates along the X axis;
and the limiting block is used for limiting the stroke of the vibrator assembly and limiting the vibration of the vibrator assembly along the X axis.
Further, in the method for implementing the horizontal linear motor with low magnetic leakage, the first stator assembly comprises a circuit board and a coil, wherein the circuit board is connected to the top end inside the casing, the coil is connected to the circuit board and electrically connected to the circuit board, a magnetic conductive plate is connected between the circuit board and the casing, an iron core is embedded inside the coil, the vibrator assembly comprises magnetic steel and a mass block, two pieces of magnetic steel arranged in parallel are embedded inside the mass block, two opposite sides of a connecting arm of the elastic piece are respectively connected with a blocking piece, two sides of the lower bracket located on the second stator assembly are respectively connected with a limiting block, and the casing and the lower bracket are both magnetic conductive members.
Compared with the prior art, the invention has the beneficial effects that:
1. the stator assemblies are respectively arranged at the top end in the shell and above the lower bracket, the coils on the two stator assemblies are connected through the conducting wire, the current directions are the same, and the driving force in the horizontal direction is superposed and increased, so that a larger driving force is obtained;
2. the casing and the lower bracket of the invention both use magnetic materials for shielding magnetic fields, and can meet the performance requirement of low magnetic leakage;
3. when the power is off, the motor has an electromagnetic damping effect due to the eddy current effect of the iron core, so that the motor can be stopped more quickly, and the motor has quicker response time;
4. the limiting block provided by the invention provides limiting for the vibration of the vibrator component along the X axis, so that the noise generated by hard collision of products is prevented;
5. the invention reduces the magnetic leakage on the premise of keeping the vibration inductance through the reasonable design of the structure and the material, reduces the motor stopping time through the electromagnetic damping, has strong manufacturability and high space utilization rate, and is obviously superior to the products on the market.
Drawings
FIG. 1 is an exploded view of the structure of the present invention;
FIG. 2 is a schematic view of the connection of the lower bracket and the second stator assembly of the present invention;
FIG. 3 is a schematic view of the connection between the housing and the first stator assembly;
FIG. 4 is a schematic structural view of the vibrator assembly connected to the resilient plate according to the present invention;
FIG. 5 is a schematic diagram of the electromagnetic drive of the present invention;
in the figure: 1. a housing; 2. a first stator assembly; 21. a magnetic conductive plate; 22. a circuit board; 23. a coil; 24. an iron core; 3. a vibrator assembly; 31. magnetic steel; 32. a mass block; 4. a spring plate; 41. a baffle plate; 5. a limiting block; 6. a lower bracket; 7. a second stator assembly.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-5, the present invention provides the following technical solutions: the utility model provides a horizontal linear motor of low magnetic leakage, includes casing 1, and the below of casing 1 is connected with bottom bracket 6, and the inside top of casing 1 is connected with first stator subassembly 2, and the top of bottom bracket 6 is connected with second stator subassembly 7, and bottom bracket 6 is the same with second stator subassembly 7's structure, and the inside of casing 1 is equipped with vibrator subassembly 3, and vibrator subassembly 3's both ends are passed through shell fragment 4 and are connected with casing 1.
Further, the first stator assembly 2 includes a circuit board 22 and a coil 23, wherein the circuit board 22 is connected to the top end inside the casing 1, the coil 23 is connected to the circuit board 22, and the coil 23 is electrically connected to the circuit board 22.
By adopting the technical scheme, the circuit board 22 and the coil 23 form a circuit, an electric field is formed when the circuit board is electrified, and the electric field and the magnetic field interact with each other to drive the motor to vibrate along the X axis; the coil on first stator subassembly 2 and the second stator subassembly 7 passes through the wire and connects, the current direction is the same, make horizontal direction drive power stack increase, vertical direction's drive power offsets each other (the size is the same, opposite direction), the coil produces magnetic field under the circular telegram circumstances, it produces interact force with magnet steel 31, the direction of action resolvable is for level and perpendicular (the effort of vertical direction offsets each other under the effect of two magnet steel magnetic fields of left and right sides), simultaneously, the coil produces the lorentz force under the effect of magnet steel magnetic field under the circular telegram circumstances, its reaction force to the subassembly of shaking is also in the same direction of level, two effort superposes each other, produce bigger drive power.
Further, a magnetic conductive plate 21 is connected between the circuit board 22 and the case 1, and the case 1 and the lower bracket 6 are both magnetic conductive members, such as ferrite stainless steel, electroplated SPCC, and the like, and have a better ability of resisting environmental corrosion on the premise of ensuring good magnetic conductivity, and the embodiment selects a stainless steel member.
Through adopting above-mentioned technical scheme, also be connected with the magnetic conduction board between circuit board 22 on the second stator module 7 and the bottom bracket 6, casing 1 and bottom bracket 6 are closed through magnetic conduction material for the shielding magnetic field, can realize the performance requirement of low magnetic leakage.
Further, an iron core 24 is embedded inside the coil 23.
By adopting the technical scheme, the magnetic field intensity is increased by the aggregation of the iron core 24; meanwhile, after the motor is powered off, the iron core 24 generates eddy current loss inside, consumes energy, and enables the motor to have an electromagnetic damping effect, so that the motor has a relatively fast response time, and the motor stop time is shortened.
Further, the vibrator component 3 includes a magnetic steel 31 and a mass 32, wherein the mass 32 is embedded and connected with two magnetic steels 31 arranged in parallel.
By adopting the technical scheme, the two magnetic steels 31 which are arranged in parallel are bonded through glue and are bonded with the mass block 32 through the glue, and the magnetic steels 31 provide a magnetic field for the driving of the motor.
Furthermore, the lower bracket 6 is connected with the limiting blocks 5 on two sides of the second stator assembly 7.
Through adopting above-mentioned technical scheme, stopper 5 is the cotton material of bubble for the stroke of restriction vibrator subassembly 3 provides spacingly for vibrator subassembly 3 along the X axle vibration.
Example 2
The present embodiment is different from embodiment 1 in that: furthermore, two opposite sides of the connecting arm of the elastic sheet 4 are respectively connected with a stop piece 41.
By adopting the technical scheme, the welding flatness is provided for the welding of the elastic sheet 4 and the mass block 32, the elastic sheet 4 and the machine shell 1 through the baffle sheet 41, the welding firmness is enhanced, and the consistency of the product frequency is ensured.
Further, the implementation method of the horizontal linear motor with low magnetic leakage of the invention comprises the following steps:
the first step, the machine shell 1 and the lower bracket 6 form a closed cavity for accommodating the internal vibrator component 3;
the vibrator component 3 comprises a mass block 32 and magnetic steel 31, and the magnetic steel 31 provides a magnetic field for driving the motor;
thirdly, the top end inside the machine shell 1 is connected with a first stator component 2, a second stator component 7 is connected above the lower bracket 6, the first stator component 2 and the second stator component 7 have the same structure, a circuit board 22 and a coil 23 form a circuit, an electric field is formed when the circuit board is electrified, the electric field and the magnetic field interact with each other, and the driving motor vibrates along the X axis;
the elastic sheet 4 is connected with the machine shell 1 and the vibrator component 3 and provides elasticity for movement, so that the vibrator component 3 reciprocates along the X axis;
and the limiting block 5 is used for limiting the stroke of the vibrator assembly 3, limiting the vibration of the vibrator assembly 3 along the X axis and preventing the product from generating noise due to hard collision.
In summary, the stator assemblies are respectively arranged at the top end inside the casing and above the lower bracket, the coils on the two stator assemblies are connected through the wires, the current directions are the same, and the driving force in the horizontal direction is superposed and increased, so that a larger driving force is obtained; the casing and the lower bracket of the invention both use magnetic materials for shielding magnetic fields, and can meet the performance requirement of low magnetic leakage; when the power is off, the motor has an electromagnetic damping effect due to the eddy current effect of the iron core, so that the motor can be stopped more quickly, and the motor has quicker response time; the limiting block provided by the invention provides limiting for the vibration of the vibrator component along the X axis, and prevents the product from generating noise due to hard collision.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A horizontal linear motor with low magnetic leakage comprises a machine shell (1), and is characterized in that: the below of casing (1) is connected with bottom bracket (6), and the inside top of casing (1) is connected with first stator subassembly (2), and the top of bottom bracket (6) is connected with second stator subassembly (7), and bottom bracket (6) are the same with the structure of second stator subassembly (7), and the inside of casing (1) is equipped with vibrator subassembly (3), and the both ends of vibrator subassembly (3) are passed through shell fragment (4) and are connected with casing (1).
2. A low leakage horizontal linear motor according to claim 1, wherein: the first stator assembly (2) comprises a circuit board (22) and a coil (23), wherein the circuit board (22) is connected to the top end inside the casing (1), the coil (23) is connected to the circuit board (22), and the coil (23) is electrically connected with the circuit board (22).
3. A low leakage horizontal linear motor according to claim 2, wherein: and a magnetic conduction plate (21) is connected between the circuit board (22) and the shell (1).
4. A low leakage horizontal linear motor according to claim 3, wherein: an iron core (24) is embedded in the coil (23).
5. A low leakage horizontal linear motor according to claim 4, wherein: the vibrator assembly (3) comprises magnetic steel (31) and a mass block (32), wherein the two magnetic steel (31) arranged in parallel are embedded and connected in the mass block (32).
6. A low leakage horizontal linear motor according to claim 5, wherein: two opposite sides of the connecting arm of the elastic sheet (4) are respectively connected with a blocking sheet (41).
7. A low leakage horizontal linear motor according to claim 6, wherein: and the two sides of the lower bracket (6) positioned on the second stator assembly (7) are respectively connected with a limiting block (5).
8. A low leakage horizontal linear motor according to claim 7, wherein: the machine shell (1) and the lower bracket (6) are both magnetic conductive components.
9. The method of implementing a low leakage horizontal linear motor according to any one of claims 1 to 8, comprising the steps of:
the shell (1) and the lower bracket (6) form a closed cavity for accommodating the oscillator component (3) inside;
the vibrator assembly (3) comprises a mass block (32) and magnetic steel (31), and the magnetic steel (31) provides a magnetic field for the motor to drive;
the top end in the shell (1) is connected with a first stator assembly (2), a second stator assembly (7) is connected above the lower bracket (6), the first stator assembly (2) and the second stator assembly (7) are identical in structure, a circuit board (22) and a coil (23) form a circuit, an electric field is formed when the circuit board is electrified, the electric field and the magnetic field interact with each other, and the motor is driven to vibrate along the X axis;
the elastic sheet (4) is connected with the shell (1) and the vibrator assembly (3) and provides elasticity for movement, so that the vibrator assembly (3) reciprocates along the X axis;
and the limiting block (5) is used for limiting the stroke of the vibrator assembly (3) and limiting the vibration of the vibrator assembly (3) along the X axis.
10. The method of implementing a low leakage horizontal linear motor of claim 9, wherein: first stator subassembly (2) are including circuit board (22) and coil (23), wherein, the top in casing (1) inside is connected to circuit board (22), be connected with coil (23) on circuit board (22), and coil (23) and circuit board (22) electric connection, be connected with magnetic conduction board (21) between circuit board (22) and casing (1), the inside embedding of coil (23) is equipped with iron core (24), oscillator subassembly (3) are including magnet steel (31) and quality piece (32), wherein, the inside embedding of quality piece (32) is connected with two magnet steel (31) that set up side by side, the both sides that the linking arm of shell fragment (4) is relative are connected with separation blade (41) respectively, the both sides that lie in second stator subassembly (7) on lower bracket (6) are connected with stopper (5) respectively, casing (1) and lower bracket (6) are the magnetic conduction component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911365848.3A CN110957881A (en) | 2019-12-26 | 2019-12-26 | Low-magnetic-leakage horizontal linear motor and implementation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911365848.3A CN110957881A (en) | 2019-12-26 | 2019-12-26 | Low-magnetic-leakage horizontal linear motor and implementation method thereof |
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| CN110957881A true CN110957881A (en) | 2020-04-03 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111479199A (en) * | 2020-04-16 | 2020-07-31 | 浙江省东阳市东磁诚基电子有限公司 | Novel screen sounding structure and implementation method thereof |
| CN111725966A (en) * | 2020-07-01 | 2020-09-29 | 浙江省东阳市东磁诚基电子有限公司 | High-driving horizontal linear motor and implementation method thereof |
| WO2021253749A1 (en) * | 2020-06-17 | 2021-12-23 | 池州市弘港科技电子有限公司 | Miniature super bass dual-drive low-frequency vibrator |
| CN113857022A (en) * | 2021-10-28 | 2021-12-31 | 汉得利（常州）电子股份有限公司 | Vibration assembly, vehicle-mounted haptic actuator and manufacturing method thereof |
| CN117118183A (en) * | 2023-10-19 | 2023-11-24 | 瑞声光电科技(常州)有限公司 | Vibration motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111479199A (en) * | 2020-04-16 | 2020-07-31 | 浙江省东阳市东磁诚基电子有限公司 | Novel screen sounding structure and implementation method thereof |
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| CN117118183A (en) * | 2023-10-19 | 2023-11-24 | 瑞声光电科技(常州)有限公司 | Vibration motor |
| CN117118183B (en) * | 2023-10-19 | 2024-03-15 | 瑞声光电科技(常州)有限公司 | Vibration motor |
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