CN109617356B - Linear exciter - Google Patents
Linear exciter Download PDFInfo
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- CN109617356B CN109617356B CN201910111157.4A CN201910111157A CN109617356B CN 109617356 B CN109617356 B CN 109617356B CN 201910111157 A CN201910111157 A CN 201910111157A CN 109617356 B CN109617356 B CN 109617356B
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- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 35
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims description 23
- 238000003780 insertion Methods 0.000 claims description 12
- 230000037431 insertion Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 238000003466 welding Methods 0.000 abstract description 8
- 230000006698 induction Effects 0.000 abstract description 7
- 238000005520 cutting process Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 239000012634 fragment Substances 0.000 description 12
- 230000006872 improvement Effects 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000002500 effect on skin Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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
- H02K33/18—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The invention provides a linear exciter, which comprises a shell, wherein a coil and a vibrator are arranged in the shell, an iron core is arranged on the inner side of the coil, the iron core comprises a plurality of silicon steel sheets, and the silicon steel sheets are of a laminated structure. Due to the adoption of the technical scheme, compared with the prior art, the invention has the advantages that: the heating problem of the coil caused by cutting the magnetic induction wire is solved by optimizing the iron core structure, and the dual-purpose function of the product can be realized, the welding strength and the yield of the finished product are improved, the process is optimized, and the cost of the whole machine is reduced by optimizing the proportion of the vibrator part magnet and the mass block and the structure of the elastic piece.
Description
Technical Field
The invention relates to the technical field of linear vibration equipment.
And more particularly to a linear actuator.
Background
At present, the linear motor on the market is mostly used for satisfying vibration experience of users, meanwhile, a part of linear motor replaces traditional RCV of a mobile phone to be arranged on a mobile phone screen, the screen is driven to resonate with air to produce sound, and in order to achieve good overall acoustic performance, the utilization rate of magnetic induction lines is often improved by optimizing a magnetic circuit and a mode of adding an iron core in a coil.
The prior art has the following disadvantages:
1. the iron core material in the coil of the stator component of the traditional linear exciter is mostly ferrite, and the material and the coil are matched to form an electromagnet, so that a coil wire generates skin effect in an alternating magnetic field or alternating current state in the product vibration process, and particularly in a high-frequency vibration state, the skin effect is more obvious, and the heat productivity of the coil is larger;
along with vibration time's increase, the product problem of generating heat is comparatively serious, and the screen below is placed in to the product, and the too high damage that also can lead to the screen of temperature influences normal use and the life-span of screen, and the product generate heat mainly is that the inside iron core of coil leads to, to this problem, except at the outside heat abstractor that adds of product at present, has not effectively solved the problem of generating heat of product through optimizing product inner structure.
2. At present, iron core structures used in coils of linear exciters are integrated structures with different shapes, iron loss is caused in the process of cutting magnetic induction lines by the coils, and eddy current effects of products are obvious in a high-frequency vibration state.
3. The existing linear vibration motor has single application field, and when the existing linear vibration motor is used as a linear motor, in order to achieve better vibration experience, the mass blocks of the vibrator part occupy a large proportion, and the utilization rate of a magnetic circuit is reduced in a limited vibration space, so that the overall acoustic performance of the linear vibration motor is reduced; when the vibration exciter is used as a linear exciter, in order to achieve better overall acoustic performance, the vibrator mass is often lightened, the magnetic circuit duty ratio is increased, and better vibration experience cannot be met.
4. In order to realize different natural frequencies of the linear exciter, the K value of the linear exciter is often changed through the structure of the variable elastic element and the weight of the mass block, so that the variable cost of the product is increased.
5. When the elastic element of the existing linear exciter is welded with the shell, poor welding is often caused by the fact that the elastic piece is not tightly attached to the shell, and the production yield and the reliability strength of products are reduced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides the linear exciter, which has the structure beneficial to heat dissipation, realizes the dual-purpose function of a product and improves the welding strength and the yield of the finished product.
The aim of the invention is achieved by the following technical measures:
a linear exciter comprises a shell, a coil and a vibrator are arranged in the shell, an iron core is arranged on the inner side of the coil, the iron core comprises a plurality of silicon steel sheets, and the silicon steel sheets are of a laminated structure.
As an improvement: the silicon steel sheet is provided with a jack, and a bolt is inserted into the jack.
As an improvement: the number of the silicon steel sheets is two, the insertion holes are formed in one end of each silicon steel sheet, the bolts are arranged at the other end of each silicon steel sheet, and the bolts on each silicon steel sheet are correspondingly arranged with the insertion holes on the other silicon steel sheet.
As an improvement: the vibrator comprises a first magnet and a second magnet, wherein the first magnet is arranged on one side of the coil, the second magnet is arranged on the other side of the coil, one ends of the first magnet and the second magnet are provided with a first mass block, and a second mass block is arranged between the other ends of the first magnet and the second magnet.
As an improvement: the vibrator also comprises an upper basin frame and a lower basin frame, the first mass block is positioned between the upper basin frame and the lower basin frame, and the second mass block is positioned between the upper basin frame and the lower basin frame.
As an improvement: the coil is characterized in that a first avoidance groove for avoiding the coil is formed in one side, close to the coil, of the first mass block, and a second avoidance groove for avoiding the coil is formed in one side, close to the coil, of the second mass block.
As an improvement: the oscillator is equipped with canceling release mechanical system between oscillator and the shell, canceling release mechanical system includes first shell fragment and second shell fragment, first shell fragment and second shell fragment slope set up, be equipped with connecting portion between first shell fragment one end and the second shell fragment one end, the one end that first shell fragment is close to connecting portion is connected with the shell, the one end that the second shell fragment is close to connecting portion is connected with the shell, the one end that connecting portion was kept away from to first shell fragment is connected with the oscillator, the one end that connecting portion was kept away from to the second shell fragment is connected with the oscillator.
As an improvement: the one end that connecting portion was kept away from to first shell fragment is equipped with first plane portion, first plane portion is connected with the oscillator, the one end that connecting portion was kept away from to the second shell fragment is equipped with the second plane portion, the second plane portion is connected with the oscillator.
As an improvement: the number of the reset mechanisms is two, one reset mechanism is positioned on one side of the vibrator, and the other reset mechanism is positioned on the other side of the vibrator.
As an improvement: the shell comprises an upper shell and a lower shell, a boss is arranged on one side, close to the upper shell, of the lower shell, and the boss is connected with one end, close to the lower shell, of the reset mechanism.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the advantages that: the heating problem of the coil caused by cutting the magnetic induction wire is solved by optimizing the iron core structure, and the dual-purpose function of the product can be realized, the welding strength and the yield of the finished product are improved, the process is optimized, and the cost of the whole machine is reduced by optimizing the proportion of the vibrator part magnet and the mass block and the structure of the elastic piece.
The invention is further described below with reference to the drawings and the detailed description.
Drawings
Fig. 1 is a schematic diagram of a linear actuator according to the present invention.
Fig. 2 is a schematic diagram showing an exploded structure of a linear actuator according to the present invention.
Fig. 3 is a schematic view of the structure of section a in fig. 1.
Fig. 4 is a schematic view showing the structure of a vibrator in a linear actuator according to the present invention.
Fig. 5 is a schematic view of the structure of the iron core in a linear actuator according to the present invention.
Fig. 6 is a schematic diagram showing an exploded structure of an iron core in a linear actuator according to the present invention.
Fig. 7 is a schematic structural diagram of a spring plate in a linear actuator according to the present invention.
Fig. 8 is a schematic view of the structure of the spring plate and the upper case in the linear actuator according to the present invention.
Fig. 9 is a schematic view of the structure of the part B in fig. 2.
In the figure: 1-an upper shell; 2-a lower shell; 3-a circuit; 4-a reset mechanism; 5-loading a basin frame; 6-a first mass; 7-a second mass; 8-a first magnet; 9-a second magnet; 10-iron core; 11-setting basin frames; 12-coil; 13-a connection; 14-a first elastic piece; 15-a second spring plate; 16-silicon steel sheets; 17-jacks; 18-a bolt; 19-boss; 20-a first planar portion; 21-a second planar portion; 22-a first avoidance groove; 23-a second avoiding groove.
Detailed Description
Example 1: as shown in fig. 1, a linear actuator comprises a housing, wherein the housing comprises an upper housing 1 and a lower housing 2, and the upper housing 1 and the lower housing 2 form a closed cavity.
As shown in fig. 2 and 3, a coil 12 and a vibrator are arranged in the cavity, the coil 12 is track-shaped, the polarity direction of the coil 12 is perpendicular to the vibration direction of the vibrator, the coil 12 is electrically connected with a circuit 3, and one end of the circuit 3 far away from the coil 12 extends out of the housing.
As shown in fig. 4, the vibrator includes an upper frame 5 and a lower frame 11, a first magnet 8 and a second magnet 9 are disposed between the upper frame 5 and the lower frame 11, the first magnet 8 is disposed on one side of the coil 12, the second magnet 9 is disposed on the other side of the coil 12, the first magnet 8 is in a strip shape, the second magnet 9 is in a strip shape, the first magnet 8 is made of magnetic steel, and the second magnet 9 is made of magnetic steel.
The polarity direction of the first magnet 8 is perpendicular to the polarity direction of the coil 12, the polarity direction of the second magnet 9 is perpendicular to the polarity direction of the coil 12, and the polarity direction of the first magnet 8 is opposite to the polarity direction of the second magnet 9.
A first mass block 6 is arranged between one end of the first magnet 8 and one end of the second magnet 9, and a second mass block 7 is arranged between the other end of the first magnet 8 and the other end of the second magnet 9.
The side of the first mass block 6, which is close to the coil 12, is provided with a first avoiding groove 22 for avoiding the coil 12, and the side of the second mass block 7, which is close to the coil 12, is provided with a second avoiding groove 23 for avoiding the coil 12.
The first magnet 8, the first mass 6, the second magnet 9 and the second mass 7 form a ring-shaped structure, and the coil 12 is located inside the ring-shaped structure.
As shown in fig. 5 and 6, an iron core 10 is disposed inside the coil 12, the iron core 10 includes a plurality of silicon steel sheets 16, and the silicon steel sheets 16 are in a strip shape. The silicon steel sheets 16 are of a laminated structure, insertion holes 17 are formed in the silicon steel sheets 16, and bolts 18 are inserted into the insertion holes 17.
Specifically, the number of the silicon steel sheets 16 is two, the insertion holes 17 are formed in one end of the silicon steel sheet 16, the bolts 18 are formed in the other end of the silicon steel sheet 16, and the bolts 18 on the silicon steel sheet 16 are correspondingly arranged with the insertion holes 17 on the other silicon steel sheet 16.
As shown in fig. 7 and 8, a reset mechanism 4 is arranged between the vibrator and the shell, specifically, the number of the reset mechanisms 4 is two, one reset mechanism 4 is located between the vibrator and the upper shell 1, and the other reset mechanism 4 is located between the vibrator and the lower shell 2.
The reset mechanism 4 comprises a first elastic piece 14 and a second elastic piece 15, the first elastic piece 14 and the second elastic piece 15 are obliquely arranged, a connecting portion 13 is arranged between one end of the first elastic piece 14 and one end of the second elastic piece 15, one end, away from the connecting portion 13, of the first elastic piece 14 is provided with a first plane portion 20, and one end, away from the connecting portion 13, of the second elastic piece 15 is provided with a second plane portion 21.
One end of the first elastic piece 14, which is close to the connecting portion 13, is connected with the upper shell 1 or the lower shell 2, and one end of the second elastic piece 15, which is close to the connecting portion 13, is connected with the upper shell 1 or the lower shell 2.
Specifically, the connecting portion 13 is welded to the upper case 1 or the lower case 2.
One end of the first elastic sheet 14, which is far away from the connecting part 13, is connected with the upper frame 5 or the lower frame 11, and one end of the second elastic sheet 15, which is far away from the connecting part 13, is connected with the upper frame 5 or the lower frame 11.
Specifically, the first plane part 20 is welded to the upper frame 5 or the lower frame 11, and the second plane part 21 is welded to the upper frame 5 or the lower frame 11.
The connection portion 13, the first flat portion 20, and the second flat portion 21 are parallel to each other, and the connection portion 13, the first flat portion 20, and the second flat portion 21 are disposed perpendicular to the vibration direction of the vibrator.
As shown in fig. 9, a boss 19 is disposed on a side of the lower shell 2 near the upper shell 1, the boss 19 is formed by stamping the tail end of the lower shell 2, and the boss 19 is welded with the connecting portion 13.
Example 2: as shown in fig. 1, a linear actuator comprises a housing, wherein the housing comprises an upper housing 1 and a lower housing 2, and the upper housing 1 and the lower housing 2 form a closed cavity.
As shown in fig. 2 and 3, a coil 12 and a vibrator are arranged in the cavity, the coil 12 is track-shaped, the polarity direction of the coil 12 is perpendicular to the vibration direction of the vibrator, the coil 12 is electrically connected with a circuit 3, and one end of the circuit 3 far away from the coil 12 extends out of the housing.
As shown in fig. 4, the vibrator includes an upper frame 5 and a lower frame 11, a first magnet 8 and a second magnet 9 are disposed between the upper frame 5 and the lower frame 11, the first magnet 8 is disposed on one side of the coil 12, the second magnet 9 is disposed on the other side of the coil 12, the first magnet 8 is in a strip shape, the second magnet 9 is in a strip shape, the first magnet 8 is made of magnetic steel, and the second magnet 9 is made of magnetic steel.
The polarity direction of the first magnet 8 is perpendicular to the polarity direction of the coil 12, the polarity direction of the second magnet 9 is perpendicular to the polarity direction of the coil 12, and the polarity direction of the first magnet 8 is opposite to the polarity direction of the second magnet 9.
A first mass block 6 is arranged between one end of the first magnet 8 and one end of the second magnet 9, and a second mass block 7 is arranged between the other end of the first magnet 8 and the other end of the second magnet 9.
The side of the first mass block 6, which is close to the coil 12, is provided with a first avoiding groove 22 for avoiding the coil 12, and the side of the second mass block 7, which is close to the coil 12, is provided with a second avoiding groove 23 for avoiding the coil 12.
The first magnet 8, the first mass 6, the second magnet 9 and the second mass 7 form a ring-shaped structure, and the coil 12 is located inside the ring-shaped structure.
An iron core 10 is arranged on the inner side of the coil 12, the iron core 10 comprises a plurality of silicon steel sheets 16, and the shape of the silicon steel sheets 16 is a long strip shape. The silicon steel sheets 16 are of a laminated structure, insertion holes 17 are formed in the silicon steel sheets 16, and bolts 18 are inserted into the insertion holes 17.
Specifically, the number of the silicon steel sheets 16 is three, four or more, the insertion holes 17 on two adjacent silicon steel sheets 16 are correspondingly arranged, and the bolts 18 sequentially pass through the insertion holes 17 to connect the three, four or more silicon steel sheets 16 together.
As shown in fig. 7 and 8, a reset mechanism 4 is arranged between the vibrator and the shell, specifically, the number of the reset mechanisms 4 is two, one reset mechanism 4 is located between the vibrator and the upper shell 1, and the other reset mechanism 4 is located between the vibrator and the lower shell 2.
The reset mechanism 4 comprises a first elastic piece 14 and a second elastic piece 15, the first elastic piece 14 and the second elastic piece 15 are obliquely arranged, a connecting portion 13 is arranged between one end of the first elastic piece 14 and one end of the second elastic piece 15, one end, away from the connecting portion 13, of the first elastic piece 14 is provided with a first plane portion 20, and one end, away from the connecting portion 13, of the second elastic piece 15 is provided with a second plane portion 21.
One end of the first elastic piece 14, which is close to the connecting portion 13, is connected with the upper shell 1 or the lower shell 2, and one end of the second elastic piece 15, which is close to the connecting portion 13, is connected with the upper shell 1 or the lower shell 2.
Specifically, the connecting portion 13 is welded to the upper case 1 or the lower case 2.
One end of the first elastic sheet 14, which is far away from the connecting part 13, is connected with the upper frame 5 or the lower frame 11, and one end of the second elastic sheet 15, which is far away from the connecting part 13, is connected with the upper frame 5 or the lower frame 11.
Specifically, the first plane part 20 is welded to the upper frame 5 or the lower frame 11, and the second plane part 21 is welded to the upper frame 5 or the lower frame 11.
The connection portion 13, the first flat portion 20, and the second flat portion 21 are parallel to each other, and the connection portion 13, the first flat portion 20, and the second flat portion 21 are disposed perpendicular to the vibration direction of the vibrator.
As shown in fig. 9, a boss 19 is disposed on a side of the lower shell 2 near the upper shell 1, the boss 19 is formed by stamping the tail end of the lower shell 2, and the boss 19 is welded with the connecting portion 13.
The whole structure of the invention is a closed structure, the vibrator assembly is completely contained in a cavity formed by the upper shell 1 and the lower shell 2, the magnetic circuit assembly is opposite to the upper shell 1 and the lower shell 2, and the magnetic attraction of the first magnet 8 and the second magnet 9 to the upper shell 1 and the lower shell 2 can change the relative K value of the vibrator assembly system of the product in the vibrator vibration process, so that the natural frequency of the product can be adjusted by adjusting the material of the upper shell 1 or the lower shell 2, and the die repairing cost of the product caused by the structural change of the metal stamping part is greatly reduced.
Compared with the traditional linear motor, the vibrator mass of the structure is about one half of that of the traditional linear motor, the first magnet 8 and the second magnet 9 in the vibrator part occupy larger weight ratio, larger utilization ratio of a magnetic circuit is realized, the magnetic induction intensity of the magnetic circuit system is 2 times that of the traditional linear motor, larger driving force and vibrator mass can better realize vibration experience provided by the traditional motor under the same vibration space, meanwhile, the problem that the traditional motor is too large in vibrator mass, the reset mechanism is too large in 4K value, the magnetic circuit utilization ratio is not high, and high-frequency acoustic performance is reduced is solved, so that the traditional RCV can be replaced, sound production is realized by pushing a whole machine screen, the whole acoustic performance of the product is greatly improved, the two-in-one use function of the product is truly realized, and the production and manufacturing cost of the whole machine is greatly reduced.
Compared with the traditional linear motor, the structure and the material of the iron core 10 inside the coil 12 have the advantages that the utilization rate of a magnetic field is effectively improved, the magnetic induction intensity is improved, meanwhile, the number of magnetic induction wires cut by the coil 12 in the vibration process of a product can be reduced, the iron loss is reduced, and the maximum mechanical energy conversion rate of the product is realized.
The laminated structure of the iron core 10 inside the coil 12 can effectively reduce the induced electromotive force generated by the coil under the high-frequency vibration of the product, so that the eddy current effect of the electromagnet is weakened, and meanwhile, the structure is beneficial to the heat dissipation of the coil 12, so that the problem that the product heats due to long-time vibration is effectively solved, and the service life of the product and the acoustic performance of the whole machine after the installation screen pasting are improved.
The first elastic piece 14 and the second elastic piece 15 are connected into a whole, so that the problem that the traditional single elastic piece is broken due to stress concentration in the vibration process is solved, and the service life and the reliability strength of the first elastic piece 14 and the second elastic piece 15 are greatly improved; meanwhile, one end of the elastic sheet is provided with a connecting part 13, and in the welding process of the elastic sheet and the upper shell 1, a tool is used for propping up the middle section of the connecting part 13, so that the plane area of the connecting part is better attached to the upper shell 1, the welding strength is improved, the yield of products is improved, and the production process is simplified; the reset mechanism 4 is fixed on the upper side and the lower side of the product vibrator, so that the product vibration is more stable, and the polarization is reduced.
The lower shell 2 of the structure is provided with the boss 19, and the boss 19 is welded with one end of the first elastic piece 14 and the second elastic piece 15, which is far away from the connecting part 13, so that a certain pretightening force is generated after the first elastic piece 14 and the second elastic piece 15 are attached to the boss 19, the welding strength of the first elastic piece 14 and the second elastic piece 15 and the lower shell 2 is improved, and the welding position of the foot ends of the first elastic piece 14 and the second elastic piece 15 can be accurately found through the back surface of the lower shell 2, and the manufacturing process is simplified.
The foregoing describes several embodiments of the present invention in detail, but the description is merely a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (9)
1. A linear actuator comprising a housing, wherein a coil (12) and a vibrator are arranged in the housing, characterized in that: an iron core (10) is arranged on the inner side of the coil (12), the iron core (10) comprises a plurality of silicon steel sheets (16), and the silicon steel sheets (16) are of a laminated structure;
a reset mechanism (4) is arranged between the vibrator and the shell, the reset mechanism (4) comprises a first elastic piece (14) and a second elastic piece (15), and a connecting part (13) is arranged between one end of the first elastic piece (14) and one end of the second elastic piece (15);
the shell comprises an upper shell (1) and a lower shell (2), a boss (19) is arranged on one side, close to the upper shell (1), of the lower shell (2), and the boss (19) is connected with one end, close to the lower shell (2), of the reset mechanism (4).
2. The linear actuator of claim 1, wherein: the silicon steel sheet (16) is provided with a jack (17), and a plug pin (18) is inserted into the jack (17).
3. The linear actuator of claim 2, wherein: the number of the silicon steel sheets (16) is two, the insertion holes (17) are formed in one end of each silicon steel sheet (16), the bolts (18) are arranged at the other end of each silicon steel sheet (16), and the bolts (18) on each silicon steel sheet (16) are correspondingly arranged with the insertion holes (17) on the other silicon steel sheet (16).
4. The linear actuator of claim 1, wherein: the vibrator comprises a first magnet (8) and a second magnet (9), wherein the first magnet (8) is arranged on one side of a coil (12), the second magnet (9) is arranged on the other side of the coil (12), one ends of the first magnet (8) and the second magnet (9) are provided with a first mass block (6), and a second mass block (7) is arranged between the other ends of the first magnet (8) and the second magnet (9).
5. The linear actuator of claim 4, wherein: the vibrator also comprises an upper basin frame (5) and a lower basin frame (11), the first mass block (6) is positioned between the upper basin frame (5) and the lower basin frame (11), and the second mass block (7) is positioned between the upper basin frame (5) and the lower basin frame (11).
6. The linear actuator of claim 4, wherein: one side of the first mass block (6) close to the coil (12) is provided with a first avoiding groove (22) for avoiding the coil (12), and one side of the second mass block (7) close to the coil (12) is provided with a second avoiding groove (23) for avoiding the coil (12).
7. A linear actuator according to any one of claims 1 to 6, wherein: the device is characterized in that the first elastic piece (14) and the second elastic piece (15) are obliquely arranged, one end of the first elastic piece (14) close to the connecting portion (13) is connected with the shell, one end of the second elastic piece (15) close to the connecting portion (13) is connected with the shell, one end of the first elastic piece (14) away from the connecting portion (13) is connected with the vibrator, and one end of the second elastic piece (15) away from the connecting portion (13) is connected with the vibrator.
8. The linear actuator of claim 7, wherein: one end of the first elastic piece (14) far away from the connecting part (13) is provided with a first plane part (20), the first plane part (20) is connected with the vibrator, one end of the second elastic piece (15) far away from the connecting part (13) is provided with a second plane part (21), and the second plane part (21) is connected with the vibrator.
9. The linear actuator of claim 7, wherein: the number of the reset mechanisms (4) is two, one reset mechanism (4) is positioned on one side of the vibrator, and the other reset mechanism (4) is positioned on the other side of the vibrator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910111157.4A CN109617356B (en) | 2019-02-12 | 2019-02-12 | Linear exciter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910111157.4A CN109617356B (en) | 2019-02-12 | 2019-02-12 | Linear exciter |
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| Publication Number | Publication Date |
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| CN109617356A CN109617356A (en) | 2019-04-12 |
| CN109617356B true CN109617356B (en) | 2024-01-23 |
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| CN201910111157.4A Active CN109617356B (en) | 2019-02-12 | 2019-02-12 | Linear exciter |
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| CN110113696B (en) * | 2019-04-23 | 2020-10-09 | 歌尔股份有限公司 | Vibration sound production device and electronic product |
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