CN208806973U - Moving iron unit and earphone - Google Patents
Moving iron unit and earphone Download PDFInfo
- Publication number
- CN208806973U CN208806973U CN201821366187.7U CN201821366187U CN208806973U CN 208806973 U CN208806973 U CN 208806973U CN 201821366187 U CN201821366187 U CN 201821366187U CN 208806973 U CN208806973 U CN 208806973U
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- permanent magnet
- seesaw
- coil case
- moving iron
- supporter
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Abstract
The utility model relates to a kind of moving iron units.For setting in shell, including vibrating diaphragm, drive rod and power mechanism；The power mechanism includes: permanent magnet, is fixedly mounted on the housing；Seesaw, is provided with the first support level and the first connection position, and the drive rod is connected between the vibrating diaphragm and first connection position；Supporter is connected between the permanent magnet and first support level；And coil case, it is arranged on the seesaw；When no current, the seesaw is in equilibrium state；When current direction alternately changes, the coil case replace attraction with the permanent magnet and repels, and the supporter can generate flexible deformation, so that the seesaw movements and passing through the drive rod drive diaphragm oscillations.So that entire moving iron unit has good low frequency characteristic, meanwhile, the sensitivity of moving iron unit greatly improves.
Description
Technical field
The utility model relates to ear phone technology fields, more particularly to a kind of moving iron unit and include the ear of the moving iron unit
Machine.
Background technique
Moving iron unit has extremely wide application in the equipment such as earphone, for traditional moving iron unit, generallys use
The mode that armature is swung in permanent magnet to drive diaphragm oscillations, generally, such moving iron unit there are sensitivity it is lower and
The defect that low frequency performance is not good enough.
Utility model content
The technical problem that the utility model solves is how to improve sensitivity and the low frequency characteristic of moving iron unit.
A kind of moving iron unit, for setting in shell, including vibrating diaphragm, drive rod and power mechanism；The power mechanism
Include:
Permanent magnet is fixedly mounted on the housing；
Seesaw, is provided with the first support level and the first connection position, and the drive rod is connected to the vibrating diaphragm and described first
Between connection position；
Supporter is connected between the permanent magnet and first support level；And
Coil case is arranged on the seesaw；
When no current, the seesaw is in equilibrium state；When current direction alternately changes, the coil case and institute
It states permanent magnet alternately to attract and repel, the supporter can generate flexible deformation, so that the seesaw movements and passing through institute
It states drive rod and drives the diaphragm oscillations.
First support level is in the middle part of the seesaw in one of the embodiments, at first connection position
In the end of the seesaw, the supporter is connect with the middle part of the permanent magnet；Wherein, the seesaw is located at described first
Part between connection position and the first support level is the first wobble segment, and the remaining other parts of the seesaw are the second wobble segment.
The quantity of the coil case is one in one of the embodiments, and the coil case setting is in first pendulum
Dynamic section or the second wobble segment.
The quantity of the coil case is two in one of the embodiments, one of them described coil case is arranged in institute
The first wobble segment is stated, another described coil case is arranged in second wobble segment；When energized, two coil cases
Magnetic direction is identical.
A kind of moving iron unit, for setting in shell, including vibrating diaphragm, drive rod and power mechanism；The power mechanism
Include:
Coil case is fixed on the housing；
Permanent magnet, is provided with the second support level and the second connection position, the drive rod be connected to the vibrating diaphragm with it is described
Between second connection position；And
Supporter is connected between the shell and second support level；
When no current, the permanent magnet is in equilibrium state；When current direction alternately changes, the coil case
Replace attraction with the permanent magnet and repel, the supporter can generate flexible deformation, so that the permanent magnet moves
And the diaphragm oscillations are driven in one of the embodiments by the drive rod.
Second support level is in the middle part of the permanent magnet, second connection in one of the embodiments,
Position is in the end of the permanent magnet, wherein the permanent magnet is between second connection position and the second support level
Part be third wobble segment, the remaining other parts of the permanent magnet are the 4th wobble segment.
The quantity of the coil case is one in one of the embodiments, and the coil case is located at the supporter
Wherein side and it is oppositely arranged with the third wobble segment or the 4th wobble segment.
The quantity of the coil case is two in one of the embodiments, two coil cases separation supports
Body two sides, one of them described coil case are oppositely arranged with the third wobble segment, another described coil case and described the
Four wobble segments are oppositely arranged, and when energized, the magnetic direction of two coil cases is identical.
In one of the embodiments, the supporter be plate structure, the longitudinal section of the supporter be serrated or
Arc-shaped.
A kind of earphone, including any of the above-described moving iron unit.
One of one embodiment of the utility model has the technical effect that the mould due to connecting using supporter with seesaw
Formula, while supporter has certain elasticity and can generate elastic deformation, and it is whole as one to reduce supporter and seesaw in this way
The intrinsic frequency (resonant frequency) of the rigidity and stiffness factor of body, entire supporter and seesaw reduces, so that entirely moving iron
Unit has good low frequency characteristic, can restore low frequency signal well.Meanwhile in coil case and permanent magnet active force
Under driving, seesaw is easier to break equilibrium state and generate movement, so that vibrating diaphragm vibrated under the identical driving force effect of size
Response speed is faster, to greatly improve the sensitivity of entire moving iron unit.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the first example moving iron unit that first embodiment provides；
Fig. 2 is the structural schematic diagram for the second example moving iron unit that first embodiment provides；
Fig. 3 is the structural schematic diagram for the third example moving iron unit that first embodiment provides；
Fig. 4 is the perspective view of supporter, seesaw and permanent magnet in Fig. 1；
Fig. 5 is the structural schematic diagram for the first example moving iron unit that second embodiment provides；
Fig. 6 is the structural schematic diagram for the second example moving iron unit that second embodiment provides；
Fig. 7 is the structural schematic diagram for the third example moving iron unit that second embodiment provides.
Specific embodiment
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The better embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms
It realizes, however it is not limited to embodiments described herein.On the contrary, the purpose of providing these embodiments is that making practical new to this
The disclosure of type understands more thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein "inner", "outside", "left", "right" and
Similar statement for illustrative purposes only, is not meant to be the only embodiment.
Refering to fig. 1, the moving iron unit 10 that an embodiment of the present invention provides includes vibrating diaphragm 100, drive rod 200 and power
Mechanism 300；Power mechanism 300 includes permanent magnet 310, seesaw 320, supporter 340 and coil case 330.Permanent magnet 310 is solid
On the shell 11, seesaw 320 is provided with the first support level 323 and the first connection position 324 for Dingan County, the upper end of drive rod 200 with
Vibrating diaphragm 100 connects, and the lower end of drive rod 200 is connect with the first connection position 324.The upper end of supporter 340 and the first of seesaw 320
Support level 323 connects, and the lower end of supporter 340 is connect with permanent magnet 310.Coil case 330 is arranged on seesaw 320, works as line
When circle body 330 includes coil, coil can be arranged around seesaw 320；When coil case 330 includes iron core and is set on iron core
When coil, coil case 330 can be fixed on seesaw 320 by conventional fashion.When there is no electric current to pass through in coil case 330
When, seesaw 320 is in equilibrium state, and seesaw 320 will not generate rotation；When the current direction in coil case 330 alternately changes,
Be alternately produced attraction and repulsive force between coil case 330 and permanent magnet 310, seesaw 320 generates rotation, supporter 340 because
It stretches or compresses and generate flexible deformation, seesaw 320 moves through drive rod 200 and vibrating diaphragm 100 is driven to vibrate, by dynamic iron list
Member 10 received electric signal be reduced into the voice signal of certain frequency.
Simultaneously refering to fig. 1 to Fig. 4, in some embodiments, the first support level 323 is in the middle part of seesaw 320, and first connects
The end that position 324 is in seesaw 320 is connect, the lower end of supporter 340 is connect with the middle part of permanent magnet 310." middle part " include but
It is not limited to the middle of seesaw 320 or permanent magnet 310, can also be center-right or left-of-center position.Permanent magnet 310
Left end can be the pole N, centre can be the pole S, right end can be the pole N.Defining seesaw 320 is located at the first connection position simultaneously
324 and the first part between support level 323 be the first wobble segment 321, the remaining other parts of seesaw 320 are the second wobble segment
322。
Referring to Fig.2, for example: the quantity of coil case 330 is one, and coil case 330 is arranged in the first wobble segment 321.When
When electric current forward flow, coil case 330 is equivalent to a magnet, and the left end of coil case 330 is the pole S, and right end is the pole N, so that
Permanent magnet 310 has repulsive force to 320 first wobble segment 321 of seesaw, attractive to 320 second wobble segment 322 of seesaw,
The balance of seesaw 320 is broken and starts to tilt, and the second wobble segment 322 of seesaw 320 is rotated down around the first support level 323,
First wobble segment 321 of seesaw 320 is rotated up around the first support level 323, and drive rod 200 follows the first wobble segment 321 upwards
Movement, so that vibrating diaphragm 100 vibrates upwards.When current direction is reversed, the left end of coil case 330 is the pole N, right end S
Pole has 320 second wobble segment 322 of seesaw so that permanent magnet 310 is attractive to 320 first wobble segment 321 of seesaw
The balance of repulsive force, seesaw 320 is broken and starts to tilt, the second wobble segment 322 of seesaw 320 around the first support level 323 to
First wobble segment 321 of upper rotation, seesaw 320 is rotated down around the first support level 323, and drive rod 200 follows the first wobble segment
321 move downward, so that vibrating diaphragm 100 vibrates downwards.Therefore, by alternately changing the current direction in coil case 330,
Vibrating diaphragm 100 can be driven up and down reciprocatingly to vibrate and restoring acoustical signal.Certainly, refering to Fig. 3, coil case 330 can also be arranged in
In second wobble segment 322, the course of work that vibrating diaphragm 100 vibrates can refer to foregoing description.
Refering to fig. 1, for another example: the quantity of coil case 330 is two, wherein a coil case 330 is arranged in the first wobble segment 321
On, another coil case 330 is arranged in the second wobble segment 322, and when energization, the magnetic direction of two coil cases 330 is identical.
When current direction forward flow, the left end of two coil cases 330 is the pole S, and right end is the pole N, and permanent magnet 310 is to seesaw
320 the first wobble segment 321 generates repulsive force, and generates attraction to the second wobble segment 322 of seesaw 320, and seesaw 320 is put down
Weighing apparatus is broken and starts to tilt, and the first wobble segment 321 moves upwards, and the second wobble segment 322 moves downward, and drive rod 200 follows
First wobble segment 321 moves upwards, so that vibrating diaphragm 100 vibrates upwards.When current direction is reversed, two coil cases 330
Left end be the pole N, right end is the pole S, and vibrating diaphragm 100 vibrates downwards.Current direction in two coil cases 330 alternately becomes simultaneously
Change, equally vibrating diaphragm 100 can be driven up and down reciprocatingly to vibrate and restoring acoustical signal.
Due to the mode being connect using supporter 340 with seesaw 320, while supporter 340 has certain elasticity and energy
Elastic deformation is generated, supporter 340 and seesaw 320 rigidity as a whole and stiffness factor are reduced in this way, according to solid
Have the calculation formula of frequency it can be concluded that, the intrinsic frequency (resonant frequency) of entire supporter 340 and seesaw 320 reduces, thus
So that entire moving iron unit 10 has good low frequency characteristic, low frequency signal can be restored well.Meanwhile in coil case 330
Under driving with 310 active force of permanent magnet, seesaw 320 is easier to break equilibrium state and generate movement, so that vibrating diaphragm 100 exists
The response speed vibrated under the identical driving force effect of size is faster, to greatly improve the sensitivity of entire moving iron unit 10.
Refering to Fig. 5 to Fig. 7, the moving iron unit 10 that another embodiment of the utility model provides includes vibrating diaphragm 100, drive rod
200 and power mechanism 300, power mechanism 300 includes permanent magnet 310, supporter 340 and coil case 330.Coil case 330 is solid
It is scheduled on shell 11, coil case 330 may include iron core and the coil that is set on iron core.Permanent magnet 310 is provided with second
Support level 313 and the second connection position 314, the upper end of drive rod 200 are connect with vibrating diaphragm 100, the lower end of drive rod 200 and permanent magnetic
Second connection position 314 of body 310 connects.The upper end of supporter 340 is connect with the second support level 313 of permanent magnet 310, support
The lower end of body 340 is connect with shell 11.When not having electric current to pass through in coil case 330, permanent magnet 310 is in equilibrium state,
Permanent magnet 310 will not generate rotation；When the current direction in coil case 330 alternately changes, coil case 330 and permanent magnet
Attraction and repulsive force are alternately produced between 310, permanent magnet 310 generates rotation, and supporter 340 is generated because stretching or compressing
Flexible deformation, permanent magnet 310 move through drive rod 200 and vibrating diaphragm 100 are driven to vibrate, and 10 institute of moving iron unit is received
Electric signal is reduced into the voice signal of certain frequency.
In some embodiments, the second support level 313 is in the middle part of permanent magnet 310, and the second connection position 314 is in forever
The end of long magnet 310, the left end of permanent magnet 310 can be the pole N, and centre is can be able to be the pole N with the pole S, right end.Simultaneously
Defining part of the permanent magnet 310 between the second connection position 314 and the second support level 313 is third wobble segment 311, permanently
The remaining other parts of magnet 310 are the 4th wobble segment 312.
Refering to Fig. 6, such as: the quantity of coil case 330 is one, and coil case 330 can be located at the right side of supporter 340,
Coil case 330 is oppositely arranged with third wobble segment 311, and for example coil case 330 is located at the underface of third wobble segment 311.Work as electricity
When flowing direction forward flow, the left end of coil case 330 is the pole S, and right end is the pole N, so that coil case 330 is to permanent magnet 310
Third wobble segment 311 generates repulsive force, generates attraction to the 4th wobble segment 312 of permanent magnet 310, permanent magnet 310 is put down
Weighing apparatus is broken and starts to tilt, and the 4th wobble segment 312 of permanent magnet 310 is rotated down around the second support level 313, permanent magnet
310 third wobble segment 311 is rotated up around the second support level 313, and drive rod 200 follows third wobble segment 311 to move upwards,
So that vibrating diaphragm 100 vibrates upwards.Similarly, when current direction is reversed, the 4th wobble segment 312 of permanent magnet 310 around
Second support level 313 is rotated up, and the third wobble segment 311 of permanent magnet 310 is rotated down around the second support level 313, driving
Bar 200 follows third wobble segment 311 to move downward, so that vibrating diaphragm 100 vibrates downwards.Refering to Fig. 7, certainly, coil case 330
The left side of supporter 340 can be located at, coil case 330 be oppositely arranged with the 4th wobble segment 312, and for example coil case 330 is positioned at the
The underface of four wobble segments 312, equally may be implemented the vibration of vibrating diaphragm 100.
Refering to Fig. 5, for another example: the quantity of coil case 330 is two, the two sides of two separation supporters 340 of coil cases 330,
One of them described coil case 330 is oppositely arranged with the third wobble segment 311, for example positioned at third wobble segment 311 just under
Side；Another coil case 330 is oppositely arranged with the 4th wobble segment 312, for example positioned at the 4th wobble segment 312 just under
Side；When energized, the magnetic direction of two coil cases 330 is identical, i.e., when current direction forward flow, two coil cases 330
Left end be the pole S, right end is the pole N, and coil case 330 generates repulsive force to 310 third wobble segment 311 of permanent magnet, to forever
The attraction of the 4th wobble segment 312 of long magnet 310, drive rod 200 follow third wobble segment 311 to move upwards, so that vibration
Film 100 vibrates upwards.When current direction is reversed, the left end of two coil cases 330 is the pole N, and right end is the pole S, vibrating diaphragm 100
Vibration downwards.Therefore, the current direction in two coil cases 330 alternately changes simultaneously, can equally drive about 100 vibrating diaphragm past
Multiplex vibration and restoring acoustical signal.
Since supporter 340 has elasticity, the intrinsic frequency (resonant frequency) of entire supporter 340 and permanent magnet 310
It reducing, entire moving iron unit 10 has good low frequency characteristic, meanwhile, in the drive of 310 active force of coil case 330 and permanent magnet
Under dynamic, permanent magnet 310 is easier to break equilibrium state and generate movement, to greatly improve the sensitive of entire moving iron unit 10
Degree.
The utility model also provides a kind of earphone, which includes above-mentioned moving iron unit 10.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of moving iron unit, for being arranged in shell, which is characterized in that including vibrating diaphragm, drive rod and power mechanism；It is described
Power mechanism includes:
Permanent magnet is fixedly mounted on the housing；
Seesaw, is provided with the first support level and the first connection position, and the drive rod is connected to the vibrating diaphragm and connect with described first
Between position；
Supporter is connected between the permanent magnet and first support level；And
Coil case is arranged on the seesaw；
When no current, the seesaw is in equilibrium state；When current direction alternately change when, the coil case and it is described forever
Long magnet alternately attracts and repels, and the supporter can generate flexible deformation, so that the seesaw movements and passing through the drive
Lever drives the diaphragm oscillations.
2. moving iron unit according to claim 1, which is characterized in that first support level is in the seesaw
Portion, first connection position are in the end of the seesaw, and the supporter is connect with the middle part of the permanent magnet；Wherein,
Part of the seesaw between first connection position and the first support level is the first wobble segment, the seesaw it is remaining its
It is partially the second wobble segment.
3. moving iron unit according to claim 2, which is characterized in that the quantity of the coil case is one, the coil
Body is arranged in first wobble segment or the second wobble segment.
4. moving iron unit according to claim 2, which is characterized in that the quantity of the coil case is two, one of them
The coil case setting is arranged in first wobble segment, another described coil case in second wobble segment；Work as energization
When, the magnetic direction of two coil cases is identical.
5. a kind of moving iron unit, for being arranged in shell, which is characterized in that including vibrating diaphragm, drive rod and power mechanism；It is described
Power mechanism includes:
Coil case is fixed on the housing；
Permanent magnet, is provided with the second support level and the second connection position, and the drive rod is connected to the vibrating diaphragm and described second
Between connection position；And
Supporter is connected between the shell and second support level；
When no current, the permanent magnet is in equilibrium state；When current direction alternately changes, the coil case and institute
It states permanent magnet alternately to attract and repel, the supporter can generate flexible deformation, so that the permanent magnet moves and leads to
It crosses the drive rod and drives the diaphragm oscillations.
6. moving iron unit according to claim 5, which is characterized in that second support level is in the permanent magnet
Middle part, second connection position are in the end of the permanent magnet, wherein the permanent magnet is located at second connection position
And the second part between support level is third wobble segment, the remaining other parts of the permanent magnet are the 4th wobble segment.
7. moving iron unit according to claim 6, which is characterized in that the quantity of the coil case is one, the coil
Body is located at the wherein side of the supporter and is oppositely arranged with the third wobble segment or the 4th wobble segment.
8. moving iron unit according to claim 6, which is characterized in that the quantity of the coil case is two, described in two
The coil case separation supporter two sides, one of them described coil case are oppositely arranged with the third wobble segment, another
The coil case is oppositely arranged with the 4th wobble segment, and when energized, the magnetic direction of two coil cases is identical.
9. moving iron unit according to any one of claim 1 to 8, which is characterized in that the supporter is plate structure,
The longitudinal section of the supporter is serrated or arc-shaped.
10. a kind of earphone, which is characterized in that including moving iron unit as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821366187.7U CN208806973U (en) | 2018-08-23 | 2018-08-23 | Moving iron unit and earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821366187.7U CN208806973U (en) | 2018-08-23 | 2018-08-23 | Moving iron unit and earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208806973U true CN208806973U (en) | 2019-04-30 |
Family
ID=66236360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821366187.7U Active CN208806973U (en) | 2018-08-23 | 2018-08-23 | Moving iron unit and earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208806973U (en) |
-
2018
- 2018-08-23 CN CN201821366187.7U patent/CN208806973U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 35th floor, block a, Tanglang City, 3333 Liuxian Avenue, Nanshan District, Shenzhen, Guangdong 518000 Patentee after: Wanmo acoustics Co.,Ltd. Address before: 518000 Room 201, building A, No. 1, Qian Wan Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen, Guangdong (Shenzhen Qianhai business secretary Co., Ltd.) Patentee before: 1MORE Inc. |
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| CP03 | Change of name, title or address |