CN110971101A - Low-leakage quick-response vibration motor and implementation method thereof - Google Patents
Low-leakage quick-response vibration motor and implementation method thereof Download PDFInfo
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- CN110971101A CN110971101A CN201911335002.5A CN201911335002A CN110971101A CN 110971101 A CN110971101 A CN 110971101A CN 201911335002 A CN201911335002 A CN 201911335002A CN 110971101 A CN110971101 A CN 110971101A
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- 230000004044 response Effects 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 77
- 239000010959 steel Substances 0.000 claims abstract description 77
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 23
- 230000005684 electric field Effects 0.000 claims description 6
- 239000004020 conductor Substances 0.000 abstract description 3
- 230000004907 flux Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/34—Reciprocating, oscillating or vibrating parts of the magnetic circuit
Abstract
The invention discloses a low-magnetic-leakage quick-response vibration motor which comprises a shell, wherein a lower bracket is connected below the shell, a stator assembly is connected above the lower bracket, a vibrator assembly is arranged in the shell, an FPC (flexible printed circuit) circuit board is connected above the lower bracket, an iron core is connected in the middle position above the lower bracket, a coil is sleeved outside the iron core and electrically connected with the FPC circuit board, a magnetic steel assembly is connected in a mass block, and the mass block is connected above the lower bracket through a spring; the invention also discloses a realization method of the vibration motor with low magnetic leakage and quick response. The shell and the lower bracket are made of magnetic conductive materials, so that a magnetic field in the motor can be shielded, and the motor has the characteristic of low magnetic leakage; the magnetic steel component and the iron core are matched to provide a magnetic field for driving the motor, so that the utilization rate of the magnetic field is greatly improved, and the driving force of the motor is greatly improved.
Description
Technical Field
The invention belongs to the technical field of vibrating motors, and particularly relates to a vibrating motor with low magnetic leakage and quick response and an implementation method thereof.
Background
The miniature vibration motor is an indispensable component of electronic products such as mobile phones, tablet computers, handheld game consoles and the like, and provides tactile feedback for users. At present, mobile consumer electronics products in the market generally use a vibration motor as a system feedback component, such as incoming call prompt of a mobile phone, vibration feedback of a game machine, and the like. Compared with the traditional rotor motor, the linear motor has great advantages in vibration characteristics, response time, service life, noise and the like, can provide various vibration modes, and provides abundant, diverse, fine and vivid tactile feedback for users. The mainstream Z in the existing market adopts single magnet steel and magnetic frame to make up into magnetic circuit assembly to the vibrating motor, and the product electromagnetic drive of this scheme is little, and the motor response is slow, and because casing and lower bracket adopt non-magnetic material, leads to this product magnetic leakage great, can't satisfy the requirement of current stage 5G time to the motor low magnetic leakage.
Disclosure of Invention
The present invention is directed to a vibration motor with low leakage flux and fast response, so as to solve the problems of the background art mentioned above. The low-leakage quick-response vibration motor provided by the invention has the characteristics of high driving force and quick response.
Another object of the present invention is to provide a method for implementing a vibration motor with low leakage flux and fast response.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a low magnetic leakage quick response's vibrating motor, which comprises a housing, the below of casing is connected with the bottom bracket, the top of bottom bracket is connected with stator module, the inside of casing is equipped with vibrator subassembly, stator module includes the FPC circuit board, coil and iron core, wherein, the top at the bottom bracket is connected to the FPC circuit board, the intermediate position of bottom bracket top is connected with the iron core, the outside cover of iron core is equipped with the coil, and coil and FPC circuit board electric connection, vibrator subassembly includes magnetic steel assembly and quality piece, wherein, magnetic steel assembly connects the inside at the quality piece, and magnetic steel assembly is located the outside of coil, the quality piece passes through the top of spring coupling at the bottom bracket.
Further, the magnetic steel assembly comprises a first magnetic steel and two second magnetic steels, wherein the two second magnetic steels are respectively connected to two sides of the first magnetic steel.
Furthermore, a fixing frame is sleeved outside the magnetic steel assembly and connected to the inside of the mass block.
Further, the fixing frame is connected with the mass block through interference fit.
Further, the lower bracket and the machine shell are both magnetic conductive members.
Further, the first magnetic steel, the second magnetic steel and the fixing frame are all of circular structures, and through holes are formed in the circle centers of the first magnetic steel, the second magnetic steel and the fixing frame and are sleeved outside the coils.
Further, the two sides of the spring are respectively provided with a flat surface at the position connected with the mass block and the lower bracket.
Further, the method for implementing the vibration motor with low leakage flux and fast response comprises the following steps:
the lower bracket and the shell form a closed cavity for accommodating the internal vibrator component;
the vibrator component mainly comprises a magnetic steel component and a mass block, and the magnetic steel component provides a magnetic field for driving the motor;
thirdly, the FPC circuit board and the coil form a circuit, an electric field is formed when the circuit is electrified, the electric field and the magnetic field interact with each other, and the motor is driven to vibrate along the Z axis;
and the spring is connected with the lower bracket and the mass block and provides elasticity for movement, so that the motor can vibrate up and down in a reciprocating manner along the Z axis.
In the method for realizing the low-leakage quick-response vibration motor, in the second step, the magnetic steel component is matched with the iron core to provide a magnetic field for driving the motor.
Further, in the method for realizing the low-leakage quick-response vibration motor, the magnetic steel assembly comprises a first magnetic steel and two second magnetic steels, wherein the two second magnetic steels are respectively connected to two sides of the first magnetic steel, a fixing frame is sleeved outside the magnetic steel assembly and connected inside the mass block, the fixing frame is connected with the mass block through interference fit, the lower bracket and the shell are both magnetic conduction components, the first magnetic steel, the second magnetic steel and the fixing frame are all of circular ring structures, a through hole is formed in the circle center of the fixing frame and sleeved outside the coil, and flat surfaces are arranged at positions, connected with the mass block and the lower bracket, of two sides of the spring respectively.
Compared with the prior art, the invention has the beneficial effects that:
1. the shell and the lower bracket are made of magnetic conductive materials, so that a magnetic field in the motor can be shielded, and the motor has the characteristic of low magnetic leakage;
2. the mass block is connected with the fixed frame in an interference fit manner, so that the reliability and stability of the assembly of the mass block and the fixed frame are ensured;
3. the magnetic steel component and the iron core are matched to provide a magnetic field for driving the motor, so that the utilization rate of the magnetic field is greatly improved, and the driving force of the motor is greatly improved;
4. the iron core provided by the invention can enable the iron core to cut the magnetic induction lines due to the movement of the magnetic steel component relative to the iron core after the motor is powered off, so that induction current (eddy current) is generated, energy is consumed, and the motor has an electromagnetic damping effect, so that the motor has faster response time and lower stop time.
Drawings
FIG. 1 is an exploded view of the structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic diagram of an electromagnetic drive configuration of the present invention;
in the figure: 1. a lower bracket; 2. an FPC circuit board; 3. a coil; 4. an iron core; 5. a spring; 6. a first magnetic steel; 7. a second magnetic steel; 8. a fixing frame; 9. a mass block; 10. a casing.
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. 1-3, the present invention provides the following technical solutions: the utility model provides a low magnetic leakage quick response's vibrating motor, which comprises a housing 10, the below of casing 10 is connected with bottom bracket 1, the top of bottom bracket 1 is connected with stator module, the inside of casing 10 is equipped with the vibrator subassembly, stator module includes FPC circuit board 2, coil 3 and iron core 4, wherein, FPC circuit board 2 connects the top at bottom bracket 1, the intermediate position of bottom bracket 1 top is connected with iron core 4, the outside cover of iron core 4 is equipped with coil 3, and coil 3 and FPC circuit board 2 electric connection, the vibrator subassembly includes magnetic steel assembly and quality piece 9, wherein, magnetic steel assembly connects the inside at quality piece 9, and magnetic steel assembly is located the outside of coil 3, quality piece 9 passes through spring 5 and connects the top at bottom bracket 1.
Further, the magnetic steel assembly comprises a first magnetic steel 6 and two second magnetic steels 7, wherein the two second magnetic steels 7 are respectively connected to two sides of the first magnetic steel 6 through glue.
Through adopting above-mentioned technical scheme, first magnet steel 6 and two second magnet steels 7 form special magnet steel structure (halbach magnet steel is arranged), and this structure can converge the magnetic induction line of magnet steel 3 sides in the coil to increase the utilization ratio in magnetic field.
Further, the outside cover of magnet steel assembly is equipped with fixed frame 8, and fixed frame 8 is connected in the inside of quality piece 9, and fixed frame 8 passes through interference fit with quality piece 9 and is connected.
Through adopting above-mentioned technical scheme, the magnet steel assembly passes through glue and is connected with fixed frame 8, constitutes the oscillator subassembly with quality piece 9, and interference fit has guaranteed the reliability and the stability of quality piece 9 with the assembly of fixed frame 8.
Further, the lower bracket 1 and the casing 10 are both magnetic conductive members.
By adopting the technical scheme, the lower bracket 1 and the shell 10 are both made of SUS430 stainless steel materials, so that the internal magnetic field of the motor can be shielded, and the motor has the characteristic of low magnetic leakage.
Furthermore, the first magnetic steel 6, the second magnetic steel 7 and the fixing frame 8 are all of circular ring structures, and through holes are formed in the circle center positions of the first magnetic steel, the second magnetic steel and the fixing frame, and the through holes are sleeved outside the coils 3.
Example 2
The present embodiment is different from embodiment 1 in that: further, flat surfaces are arranged at the positions where the two sides of the spring 5 are respectively connected with the mass block 9 and the lower bracket 1.
Through adopting above-mentioned technical scheme, the flush side can regard as the face of weld of spring 5 equipment to the equipment of spring 5 of being convenient for.
Further, the implementation method of the vibration motor with low magnetic leakage and quick response comprises the following steps:
a closed cavity is formed by the lower bracket 1 and the shell 10 and used for accommodating internal vibrator components;
the vibrator component mainly comprises a magnetic steel component and a mass block 9, and the magnetic steel component provides a magnetic field for driving the motor;
thirdly, the FPC board 2 and the coil 3 form a circuit, an electric field is formed when the circuit is electrified, the electric field and the magnetic field interact with each other, and the motor is driven to vibrate along the Z axis;
and (IV) the spring 5 is connected with the lower bracket 1 and the mass block 9, and provides elasticity for movement, so that the motor can vibrate up and down in a reciprocating manner along the Z axis.
Further, according to the implementation method of the vibration motor with low magnetic leakage and fast response, in the second step, the magnetic steel assembly is matched with the iron core 4 to provide a magnetic field for driving the motor.
By adopting the technical scheme, the utilization rate of the magnetic field is greatly improved, and the driving force of the product is increased.
In summary, the casing and the lower bracket of the invention are made of magnetic conductive materials, so that the magnetic field inside the motor can be shielded, and the motor has the characteristic of low magnetic leakage; the magnetic steel component and the iron core are matched to provide a magnetic field for driving the motor, so that the driving force of the motor can be greatly improved; the iron core can enable the motor to generate eddy current inside the iron core after the motor is powered off, consume energy and enable the motor to have the electromagnetic damping effect, so that the motor has faster response time and lower stop time.
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 low-leakage quick-response vibration motor comprises a machine shell (10), and is characterized in that: the below of casing (10) is connected with bottom bracket (1), the top of bottom bracket (1) is connected with stator module, the inside of casing (10) is equipped with vibrator subassembly, stator module includes FPC circuit board (2), coil (3) and iron core (4), wherein, FPC circuit board (2) are connected in the top of bottom bracket (1), middle position of bottom bracket (1) top is connected with iron core (4), the outside cover of iron core (4) is equipped with coil (3), and coil (3) and FPC circuit board (2) electric connection, vibrator subassembly includes magnetic steel assembly and quality piece (9), wherein, magnetic steel assembly connects the inside in quality piece (9), and magnetic steel assembly is located the outside of coil (3), quality piece (9) are connected in the top of bottom bracket (1) through spring (5).
2. A low leakage fast response vibration motor according to claim 1, wherein: the magnetic steel component comprises a first magnetic steel (6) and two second magnetic steels (7), wherein the two second magnetic steels (7) are respectively connected to two sides of the first magnetic steel (6).
3. A low leakage fast response vibration motor according to claim 2, wherein: the outside cover of magnet steel assembly is equipped with fixed frame (8), and fixed frame (8) are connected in the inside of quality piece (9).
4. A low leakage fast response vibration motor according to claim 3, wherein: the fixed frame (8) is connected with the mass block (9) in an interference fit manner.
5. The vibration motor with low leakage and fast response as claimed in claim 4, wherein: the lower bracket (1) and the machine shell (10) are both magnetic conductive components.
6. The vibration motor with low leakage and fast response as claimed in claim 5, wherein: the first magnetic steel (6), the second magnetic steel (7) and the fixing frame (8) are all of circular ring-shaped structures, a through hole is formed in the circle center position of the first magnetic steel, and the through hole is sleeved outside the coil (3).
7. The vibration motor with low leakage and fast response as claimed in claim 6, wherein: and flat surfaces are arranged at the positions where the two sides of the spring (5) are respectively connected with the mass block (9) and the lower bracket (1).
8. The method for implementing a low leakage fast response vibration motor according to any one of claims 1 to 7, comprising the steps of:
a closed cavity is formed by the lower bracket (1) and the shell (10) and used for accommodating the internal vibrator component;
the vibrator component mainly comprises a magnetic steel component and a mass block (9), and the magnetic steel component provides a magnetic field for the motor to drive;
thirdly, the FPC circuit board (2) and the coil (3) form a circuit, an electric field is formed when the circuit is electrified, the electric field and the magnetic field interact with each other, and the motor is driven to vibrate along the Z axis;
and the spring (5) is connected with the lower bracket (1) and the mass block (9) to provide elasticity for movement, so that the motor can vibrate up and down in a reciprocating manner along the Z axis.
9. The method of claim 8, wherein the vibration motor has a low leakage and a fast response, and further comprises: in the second step, the magnetic steel component is matched with the iron core (4) to provide a magnetic field for the motor to drive.
10. The method of claim 9, wherein the vibration motor has a low leakage and a fast response, and further comprises: the magnetic steel assembly comprises a first magnetic steel (6) and two second magnetic steels (7), wherein the two second magnetic steels (7) are connected to two sides of the first magnetic steel (6) respectively, a fixing frame (8) is sleeved outside the magnetic steel assembly, the fixing frame (8) is connected to the inside of the mass block (9), the fixing frame (8) is connected with the mass block (9) through interference fit, the lower bracket (1) and the shell (10) are magnetic conduction components, the first magnetic steel (6), the second magnetic steel (7) and the fixing frame (8) are both circular ring-shaped structures, through holes are formed in the circle center positions of the fixing frame, the through holes are sleeved outside the coil (3), and the two sides of the spring (5) are provided with flat surfaces at positions connected with the mass block (9) and the lower bracket (1) respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911335002.5A CN110971101A (en) | 2019-12-23 | 2019-12-23 | Low-leakage quick-response vibration motor and implementation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911335002.5A CN110971101A (en) | 2019-12-23 | 2019-12-23 | Low-leakage quick-response vibration motor and implementation method thereof |
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| CN110971101A true CN110971101A (en) | 2020-04-07 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205725402U (en) * | 2016-04-28 | 2016-11-23 | 绵阳博凡科技有限公司 | A kind of linear vibrator |
| CN106208599A (en) * | 2016-07-21 | 2016-12-07 | 瑞声科技(新加坡)有限公司 | Linear vibration electric motor |
| CN106655697A (en) * | 2016-11-30 | 2017-05-10 | 歌尔股份有限公司 | Linear vibration motor |
| CN209267411U (en) * | 2018-10-18 | 2019-08-16 | 领先科技(东台)有限公司 | A kind of linear vibration motor |
-
2019
- 2019-12-23 CN CN201911335002.5A patent/CN110971101A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205725402U (en) * | 2016-04-28 | 2016-11-23 | 绵阳博凡科技有限公司 | A kind of linear vibrator |
| CN106208599A (en) * | 2016-07-21 | 2016-12-07 | 瑞声科技(新加坡)有限公司 | Linear vibration electric motor |
| CN106655697A (en) * | 2016-11-30 | 2017-05-10 | 歌尔股份有限公司 | Linear vibration motor |
| CN209267411U (en) * | 2018-10-18 | 2019-08-16 | 领先科技(东台)有限公司 | A kind of linear vibration motor |
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