CN211405657U - Voice coil motor mechanism - Google Patents
Voice coil motor mechanism Download PDFInfo
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- CN211405657U CN211405657U CN202020154149.6U CN202020154149U CN211405657U CN 211405657 U CN211405657 U CN 211405657U CN 202020154149 U CN202020154149 U CN 202020154149U CN 211405657 U CN211405657 U CN 211405657U
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Abstract
The utility model discloses a voice coil motor mechanism relates to driving motor technical field, and its technical scheme main points are including moving the casing, move in the casing be provided with move the coaxial heat conduction axle of casing, heat conduction axle cup joints two magnet steel rings and one is located two interior magnetic pole between the magnet steel ring, the magnet steel ring and interior magnetic pole has cup jointed and has pegged graft move coil skeleton in the casing, be provided with the coil body on coil skeleton's the periphery lateral wall. The utility model is characterized in that the movable shell is sleeved on the coil framework, so that the coil body is fixed on the peripheral side surface of the coil framework and positioned between the coil framework and the movable shell; the heat conducting shaft plays a role in heat conduction and heat dissipation; and two magnetic steel rings at two ends of the inner magnetic pole complete magnetic field forming through the magnetic pole mechanism embedded in the middle of the inner magnetic pole, so that the voice coil motor mechanism is simplified, and the effects of no mechanical friction, no mechanical loss and high reaction speed are realized.
Description
Technical Field
The utility model relates to a driving motor technical field, it relates to a voice coil motor mechanism that says so more specifically.
Background
The voice coil motor is a direct drive motor in a special form, and has the characteristics of simple structure, small size, high speed, high acceleration response speed and the like. The voice coil motor works on the principle that an electrified coil conductor generates force when placed in a magnetic field, the force is proportional to the current applied to a coil, and the motion form of the voice coil motor manufactured on the basis of the principle can be a straight line or a circular arc.
Chinese patent with publication number CN204179914U discloses a voice coil motor module, which comprises a voice coil motor, a sleeve, a first anti-collision sheet, a second anti-collision sheet and a sleeve connector, wherein the voice coil motor comprises a stator and a rotor, an annular groove is arranged in the axial direction of the stator, an annular boss matched with the annular groove is arranged in the axial direction of the rotor, and the annular boss is arranged in the annular groove; the inner wall of the sleeve connecting piece is provided with a circular boss, the sleeve connecting piece is sleeved outside the stator, and the sleeve connecting piece is fixed on the rotor through a fastener; a sleeve is arranged on the left side of the circular boss and is arranged between the stator and the sleeve connecting piece; a first anti-collision sheet is arranged on the right side of the circular boss and arranged between the stator and the sleeve connecting piece; and a second anti-collision sheet is arranged in the annular groove.
However, the positions of the components of the voice coil motor module are complicated, which affects the response speed of the voice coil motor and needs to be improved.
Disclosure of Invention
Not enough to prior art exists, the utility model aims to provide a voice coil motor mechanism, this voice coil motor mechanism have the effect that no machinery friction, no mechanical loss and reaction rate are fast.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a voice coil motor mechanism, includes and moves the casing, move in the casing be provided with move the coaxial heat conduction axle of casing, the heat conduction axle cup joints two magnetic steel rings and one is located two interior magnetic pole between the magnetic steel ring, the magnetic steel ring and interior magnetic pole cup joints and pegs graft and is in move coil skeleton in the casing, be provided with the coil body on coil skeleton's the periphery lateral wall.
By adopting the technical scheme, the movable shell is sleeved on the coil framework, and the coil body is fixed on the peripheral side surface of the coil framework and positioned between the coil framework and the movable shell; the heat conducting shaft plays a role in heat conduction and heat dissipation; and two magnetic steel rings at two ends of the inner magnetic pole complete magnetic field forming through the magnetic pole mechanism embedded in the middle of the inner magnetic pole, so that the voice coil motor mechanism is simplified, and the effects of no mechanical friction, no mechanical loss and high reaction speed are realized.
The utility model discloses further set up to: the coil framework is characterized in that a coil groove is formed in the peripheral side wall of the coil framework, and the coil body is fixed in the coil groove.
Through adopting above-mentioned technical scheme, the coil recess plays and shows the effect that promotes coil body fixed stability.
The utility model discloses further set up to: the coil framework is provided with a wire groove of which one end is communicated with the coil groove, and the other end of the wire groove is flush with the side surface of one end of the coil framework, which is far away from the movable shell.
Through adopting above-mentioned technical scheme, the wire casing is used for connecting the coil body, has simple structure's characteristics.
The utility model discloses further set up to: the heat conduction shaft is sleeved with an outer magnetic pole, and the outer magnetic pole is positioned at one end of the heat conduction shaft, which is far away from the movable shell, and is abutted to the corresponding magnetic steel ring.
By adopting the technical scheme, the outer magnetic pole is matched with the inner magnetic pole, so that the reaction speed of the voice coil motor mechanism is further improved.
The utility model discloses further set up to: the diameter of the inner magnetic pole is larger than that of the outer magnetic pole.
By adopting the technical scheme, the reaction speed of the voice coil motor mechanism is further improved.
The utility model discloses further set up to: the magnetic steel ring positioned at one end of the heat conduction shaft close to the movable shell is inserted in the inner side wall of the movable shell.
Through adopting above-mentioned technical scheme, promote this voice coil motor mechanism's structural stability.
To sum up, the utility model discloses following beneficial effect has: the coil framework is sleeved with the movable shell, and the coil body is fixed on the peripheral side surface of the coil framework and positioned between the coil framework and the movable shell; the heat conducting shaft plays a role in heat conduction and heat dissipation; the two magnetic steel rings positioned at the two ends of the inner magnetic pole complete magnetic field forming through the magnetic pole mechanism embedded in the middle of the inner magnetic pole, so that the voice coil motor mechanism is simplified, and the effects of no mechanical friction, no mechanical loss and high reaction speed are realized; and then through increasing outer magnetic pole for outer magnetic pole and interior magnetic pole cooperation further promote this voice coil motor mechanism's reaction rate.
Drawings
FIG. 1 is a schematic front view of the present embodiment;
fig. 2 is a schematic sectional structure diagram of the present embodiment.
Description of reference numerals: 1. a movable shell; 2. a coil bobbin; 21. a coil groove; 22. a wire guide groove; 3. a heat conductive shaft; 4. a magnetic steel ring; 5. an inner magnetic pole; 6. an outer magnetic pole; 7. a coil body.
Detailed Description
In order to make the technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings.
As shown in fig. 1, a voice coil motor mechanism includes a movable housing 1. A heat conducting shaft 3 which is coaxial with the movable shell 1 is arranged in the movable shell 1, and a coil framework 2 which is coaxial with the movable shell 1 and the heat conducting shaft 3 is inserted in the movable shell 1. Therefore, the heat conducting shaft 3 plays a role in heat conduction and heat dissipation, and a stable structure is formed among the movable shell 1, the heat conducting shaft 3 and the coil framework 2, so that the voice coil motor mechanism can achieve the effects of no mechanical friction, no mechanical loss and high reaction speed.
As shown in fig. 1 and 2, the heat conducting shaft 3 is sleeved with two magnetic steel rings 4 and an inner magnetic pole 5 located between the two magnetic steel rings 4. The coil framework 2 is sleeved on the magnetic steel ring 4 and the inner magnetic pole 5, and the coil body 7 is arranged on the outer peripheral side wall of the coil framework 2. Therefore, the coil body 7 is fixed on the outer peripheral side of the bobbin 2 and is located between the bobbin 2 and the movable case 1; and two magnetic steel rings 4 positioned at two ends of the inner magnetic pole 5 complete magnetic field forming through the magnetic pole mechanism embedded in the middle of the inner magnetic pole 5, so that the voice coil motor mechanism is simplified, and the effects of no mechanical friction, no mechanical loss and high reaction speed are realized. And the magnetic steel ring 4 which is positioned at the end of the heat conducting shaft 3 close to the movable shell 1 is inserted into the inner side wall of the movable shell 1, thereby achieving the effect of improving the structural stability of the voice coil motor mechanism.
Note that, a coil groove 21 is provided on the outer peripheral side wall of the coil bobbin 2. The coil body 7 is fixed in the coil groove 21, so that the coil groove 21 can play a role in remarkably improving the fixing stability of the coil body 7. The coil bobbin 2 is provided with a wire groove 22 having one end communicating with the coil groove 21. The other end of the wire groove 22 is flush with the side surface of one end of the coil framework 2 far away from the movable shell 1, and is connected with the coil body 7 through the wire groove 22, so that the coil has the characteristic of simple structure. Meanwhile, the outer magnetic pole 6 is sleeved on the heat conducting shaft 3. The outer magnetic pole 6 is located at one end of the heat conducting shaft 3 far away from the movable shell 1 and is abutted to the corresponding magnetic steel ring 4, and then under the matching of the outer magnetic pole 6 and the inner magnetic pole 5, the reaction speed of the voice coil motor mechanism is improved. In order to further increase the reaction speed of the voice coil motor mechanism, the diameter of the inner magnetic pole 5 is set to be larger than the diameter of the outer magnetic pole 6 and the diameter of the two magnetic steel rings 4, the structure is simple, the processing and the manufacturing are easy, and the voice coil motor mechanism without mechanical friction and mechanical loss is formed.
In summary, in the present application, the movable housing 1 is sleeved on the bobbin 2, and the coil body 7 is fixed on the outer peripheral side surface of the bobbin 2 and located between the bobbin 2 and the movable housing 1; the heat conducting shaft 3 plays a role in heat conducting and heat dissipating; the two magnetic steel rings 4 positioned at the two ends of the inner magnetic pole 5 complete magnetic field forming through the magnetic pole mechanism embedded in the middle of the inner magnetic pole 5, so that the voice coil motor mechanism is simplified, and the effects of no mechanical friction, no mechanical loss and high reaction speed are realized; and then the outer magnetic pole 6 is matched with the inner magnetic pole 5 by adding the outer magnetic pole 6, so that the reaction speed of the voice coil motor mechanism is further improved.
The above is only the preferred embodiment of the present invention, the protection scope of the present invention is not limited to the above embodiments, but all the cases belong to the technical solution of the present invention under the thought all belong to the protection scope of the present invention. It should be noted that modifications and decorations, which would occur to those skilled in the art without departing from the principle of the present invention, should also be considered as the protection scope of the present invention.
Claims (6)
1. A voice coil motor mechanism, its characterized in that: including moving casing (1), move be provided with in casing (1) with move coaxial heat conduction axle (3) of casing (1), heat conduction axle (3) have cup jointed two magnet steel rings (4) and one is located two interior magnetic pole (5) between magnet steel ring (4), magnet steel ring (4) and interior magnetic pole (5) have cup jointed and peg graft and be in move coil skeleton (2) in casing (1), be provided with coil body (7) on the periphery lateral wall of coil skeleton (2).
2. A voice coil motor mechanism as claimed in claim 1, wherein: the coil frame is characterized in that a coil groove (21) is formed in the outer peripheral side wall of the coil frame (2), and the coil body (7) is fixed in the coil groove (21).
3. A voice coil motor mechanism as claimed in claim 2, wherein: the coil framework (2) is provided with a wire groove (22) with one end communicated with the coil groove (21), and the other end of the wire groove (22) is flush with the side face of the coil framework (2) far away from the movable shell (1).
4. A voice coil motor mechanism as claimed in claim 1, wherein: the heat conduction shaft (3) is sleeved with an outer magnetic pole (6), the outer magnetic pole (6) is located at one end, far away from the movable shell (1), of the heat conduction shaft (3), and the outer magnetic pole is abutted to the corresponding magnetic steel ring (4).
5. A voice coil motor mechanism as claimed in claim 4, wherein: the diameter of the inner magnetic pole (5) is larger than that of the outer magnetic pole (6).
6. A voice coil motor mechanism as claimed in claim 1, wherein: the magnetic steel ring (4) which is positioned at one end of the heat conducting shaft (3) close to the movable shell (1) is inserted into the inner side wall of the movable shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020154149.6U CN211405657U (en) | 2020-02-06 | 2020-02-06 | Voice coil motor mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020154149.6U CN211405657U (en) | 2020-02-06 | 2020-02-06 | Voice coil motor mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211405657U true CN211405657U (en) | 2020-09-01 |
Family
ID=72209727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020154149.6U Active CN211405657U (en) | 2020-02-06 | 2020-02-06 | Voice coil motor mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211405657U (en) |
-
2020
- 2020-02-06 CN CN202020154149.6U patent/CN211405657U/en active Active
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