CN212588249U - Lens driving device, camera device and electronic equipment - Google Patents
Lens driving device, camera device and electronic equipment Download PDFInfo
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- CN212588249U CN212588249U CN202022012738.3U CN202022012738U CN212588249U CN 212588249 U CN212588249 U CN 212588249U CN 202022012738 U CN202022012738 U CN 202022012738U CN 212588249 U CN212588249 U CN 212588249U
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- carrier
- main body
- limiting
- lens driving
- driving device
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Abstract
The utility model discloses a lens drive arrangement, camera device and electronic equipment, including the carrier, follow a plurality of inner circle magnetites that the outside of carrier distributes set up a plurality of coils in the inner circle magnetites outside set up a plurality of outer lane magnetites in the coil outside to and the cover is established the yoke ring in the carrier, inner circle magnetites, coil and the outer lane magnetites outside. The utility model discloses a magnetite is provided with two-layerly, is inner circle magnetite and outer lane magnetite respectively. The inner ring magnets are distributed along the outer circumferential surface of the carrier, the coil is distributed along the outer ring of the inner ring magnets, and the outer ring magnets are distributed along the outer circumferential surface of the coil. Compared with the prior art, the utility model discloses under the same condition of magnetite gross thickness, magnetic field distribution is more even. Under the condition of a uniform magnetic field, the linearity of the driving structure is better.
Description
Technical Field
The utility model relates to a motor field, specifically speaking, in particular to lens drive arrangement, camera device and electronic equipment.
Background
The motor has limited internal installation space, and the existing driving structure basically distributes coils outside a carrier and then distributes magnets on four sides or four corners outside the coils. The distribution structure of the coil and the magnets has the following defects: the thrust of a large motor product in the automatic focusing process is insufficient, and the driving performance of the motor is affected.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a lens drive arrangement, drive arrangement and electronic equipment to not enough among the prior art to solve the problem that exists among the prior art.
The utility model provides a technical problem can adopt following technical scheme to realize:
a lens driving device comprises a carrier and a lens driving device
A plurality of inner ring magnets distributed along the outer side of the carrier,
a plurality of coils arranged on the outer side of the inner ring magnet,
a plurality of outer ring magnets arranged outside the coils,
and the magnetic yoke ring is sleeved on the outer sides of the carrier, the inner ring magnet, the coil and the outer ring magnet.
Furthermore, the carrier comprises a hollow main body, a plurality of limiting bulges are uniformly distributed along the outer circumferential surface of the hollow main body, and a limiting ring is arranged along the edge of the bottom of the hollow main body.
The top of the limiting bulge is flush with the top of the hollow main body, and the bottom of the limiting bulge is connected with the upper surface of the limiting ring; the plurality of limiting bulges and the limiting ring form a plurality of mounting grooves on the outer circumferential surface of the hollow main body;
the inner ring magnet is arranged in the mounting groove.
The magnet yoke further comprises an upper elastic sheet, wherein the upper elastic sheet is arranged at the tops of the carrier, the inner ring magnet, the coil and the outer ring magnet, and the upper surface of the upper elastic sheet is connected with the inner surface of the magnet yoke ring.
Furthermore, the device also comprises a lower elastic sheet which is positioned below the carrier and arranged in the base.
The carrier is arranged on the bottom of the carrier, the base comprises a plate-shaped main body, a through round hole is formed in the middle of the plate-shaped main body, and a limit groove is formed in the edge of the through round hole;
the four corners of the base are respectively provided with a connecting groove which is communicated with the limiting groove;
the lower elastic sheet is arranged in the limiting groove and the connecting groove.
Furthermore, the through round hole of the base is opposite to the hollow main body of the carrier.
The terminal is provided with a first connecting end and a second connecting end, the first connecting end is arranged in the connecting groove of the base and is connected with the lower elastic sheet, and the second connecting end extends to the lower portion of the base.
Furthermore, the lower elastic sheet is connected with the first connecting end of the terminal through dispensing.
A driving device has the lens driving device with the structure.
An electronic apparatus having the above-described driving device.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. under the condition of the same total thickness of the magnets, the magnetic field distribution is more uniform. Under the condition of a uniform magnetic field, the linearity of the driving structure is better.
2. Under the same condition of the total thickness of the magnets, the magnetic flux is increased by about 20%, the magnetic force is increased by 20%, the thrust of the motor is increased by about 20%, the power consumption is reduced, the total volume occupied by the magnets is smaller, and raw materials are saved.
3. The magnetic field intensity is correspondingly enhanced when the number of the magnet pieces is increased.
Drawings
Fig. 1 is a schematic view of a lens driving device according to the present invention.
Fig. 2 is a schematic diagram of a lens driving apparatus (without a yoke ring) according to the present invention.
Fig. 3 is a schematic structural diagram of the carrier of the present invention.
Fig. 4 is a schematic view of the inner ring magnet according to the present invention.
Fig. 5 is a schematic diagram of the coil according to the present invention.
Fig. 6 is a schematic view of the outer ring magnet according to the present invention.
Fig. 7 is a schematic view of the yoke ring according to the present invention.
Fig. 8 is a schematic diagram of the position of the upper spring plate according to the present invention.
Fig. 9 is a schematic structural view of the upper spring plate of the present invention.
Fig. 10 is a schematic diagram of the position of the lower spring plate according to the present invention.
Fig. 11 is a schematic structural view of the lower spring plate of the present invention.
Fig. 12 is a schematic view of a base according to the present invention.
Fig. 13 is a schematic view of a terminal according to the present invention.
Fig. 14 is a schematic diagram of the positions of the lower spring plate, the base, and the terminal according to the present invention.
Fig. 15 is an interesting schematic structural diagram of the square structure according to the present invention.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
Referring to fig. 1 to 11, the lens driving device of the present invention includes a carrier (1) and further includes
A plurality of inner ring magnets (2) distributed along the outer side of the carrier (1),
a plurality of coils (3) arranged outside the inner ring magnet (2),
a plurality of outer ring magnets (4) arranged outside the coil (3),
and the magnetic yoke ring (5) is sleeved on the outer sides of the carrier (1), the inner ring magnet (2), the coil (3) and the outer ring magnet (4).
The carrier (1) comprises a hollow main body (11), a plurality of limiting bulges (12) are uniformly distributed along the outer circumferential surface of the hollow main body (11), and a limiting ring (13) is arranged along the bottom edge of the hollow main body (11).
The top of the limiting bulge (12) is flush with the top of the hollow main body (11), and the bottom of the limiting bulge (12) is connected with the upper surface of the limiting ring (13); the limiting bulges (12) and the limiting ring (13) form a plurality of mounting grooves (14) on the outer circumferential surface of the hollow main body (11);
the inner ring magnet (2) is arranged in the mounting groove (14).
An upper elastic sheet (6) is arranged at the top of the carrier (1), the inner ring magnet (2), the coil (3) and the outer ring magnet (4), and the upper surface of the upper elastic sheet (6) is connected with the inner surface of the yoke ring (5).
A lower elastic sheet (7) is arranged below the carrier (1), and the lower elastic sheet (7) is arranged in the base (8).
A base (8) is arranged at the bottom of the carrier (1), the base (8) comprises a plate-shaped main body (81), a through round hole (82) is formed in the middle of the plate-shaped main body (81), and a limiting groove (83) is formed along the edge of the through round hole (82);
four corners of the base (8) are respectively provided with a connecting groove (84), and the connecting grooves (84) are communicated with the limiting grooves (83);
the lower elastic sheet (7) is arranged in the limiting groove (83) and the connecting groove (84).
The through round hole (82) of the base (8) is opposite to the hollow main body (11) of the carrier (1).
The utility model discloses still include terminal (9), terminal (9) have first link (91) and second link (92), and first link (91) set up in spread groove (84) of base (8) and are connected with lower shell fragment (7), and second link (92) extend to the below of base (8).
The lower elastic sheet (7) is connected with the first connecting end (91) of the terminal (9) through dispensing.
Example 1
A lens driving device comprises a carrier (1), an inner ring magnet (2), a coil (3), an outer ring magnet (4), a yoke ring (5), an upper elastic sheet (6), a lower elastic sheet (7), a base (8) and a terminal (9).
Referring to fig. 3, the carrier (1) comprises a hollow main body (11), a plurality of limiting protrusions (12) are uniformly distributed along the outer circumferential surface of the hollow main body (11), and a limiting ring (13) is arranged along the bottom edge of the hollow main body (11). The top of the limiting bulge (12) is flush with the top of the hollow main body (11), and the bottom of the limiting bulge (12) is connected with the upper surface of the limiting ring (13); the limiting bulges (12) and the limiting ring (13) form a plurality of mounting grooves (14) on the outer circumferential surface of the hollow main body (11); the inner ring magnet (2) is arranged in the mounting groove (14). An upper elastic sheet (6) is arranged at the top of the carrier (1), the inner ring magnet (2), the coil (3) and the outer ring magnet (4), and the upper surface of the upper elastic sheet (6) is connected with the inner surface of the yoke ring (5).
Referring to fig. 4, 5, 6 and 7, the magnets (2) on the inner ring, the coils (3) and the magnets (4) on the outer ring are uniformly distributed along the outer side of the carrier (1) from inside to outside in sequence. Specifically, the inner ring magnet (2), the coil (3) and the outer ring magnet (4) are of radian structures matched with the outer surface of the hollow main body (11), so that a good installation effect is achieved. After the inner ring magnet (2), the coil (3) and the outer ring magnet (4) are installed, a yoke ring (5) is arranged on the outermost side.
Referring to fig. 8 and 9, the upper spring (6) is disposed on the top of the carrier (1), the inner ring magnet (2), the coil (3) and the outer ring magnet (4), the lower surface of the lower spring (6) is located above the carrier (1), the inner ring magnet (2), the coil (3) and the outer ring magnet (4), and the upper surface of the upper spring (6) is connected with the inner surface of the yoke ring (5).
Referring to fig. 10 and 11, the lower elastic sheet (7) is arranged in the base (8) below the carrier (1).
Referring to fig. 12, the base (8) is arranged at the bottom of the carrier (1), the base (8) comprises a plate-shaped main body (81), a through round hole (82) is formed in the middle of the plate-shaped main body (81), and a limit groove (83) is formed along the edge of the through round hole (82); four corners of the base (8) are respectively provided with a connecting groove (84), and the connecting grooves (84) are communicated with the limiting grooves (83); the lower elastic sheet (7) is arranged in the limiting groove (83) and the connecting groove (84). The through round hole (82) of the base (8) is opposite to the hollow main body (11) of the carrier (1).
Referring to fig. 13 and 14, the terminal (9) has a first connection end (91) and a second connection end (92), the first connection end (91) is disposed in the connection groove (84) of the base (8) and connected with the lower spring plate (7), and the second connection end (92) extends to the lower side of the base (8).
The lower elastic sheet (7) is connected with the first connecting end (91) of the terminal (9) through dispensing.
In the embodiment, the magnets are provided with two layers, namely an inner ring magnet (2) and an outer ring magnet (4). The inner ring magnets (2) are distributed along the outer circumferential surface of the carrier (1), the coils (3) are distributed along the outer ring of the inner ring magnets (2), and the outer ring magnets (4) are distributed along the outer circumferential surface of the coils (3). Compared with the scheme that the coils in the background technology are distributed along the surface of the carrier, and the magnets are distributed on four sides or four corners of the shell, the magnet distribution structure has the following advantages:
1. the inner ring magnet (2) and the outer ring magnet (4) of the embodiment are connected in an end-to-end manner to form a circular ring, and compared with the four sides or four corners of the dispersed magnets in the prior art, the magnetic field distribution is more uniform. Under the condition of a uniform magnetic field, the linearity of the driving structure is better.
2. Under the same condition of the total thickness of the magnets, the magnetic flux is increased by about 20%, the magnetic force is increased by 20%, the thrust of the motor is increased by about 20%, the power consumption is reduced, the total volume occupied by the magnets is smaller, and raw materials are saved.
3. The magnet distribution structure of inner circle and outer lane, the magnetite number of pieces can corresponding increase, and magnetic field intensity can corresponding reinforcing.
In the present embodiment, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", and the like indicate the orientation or the positional relationship based on the orientation or the positional relationship shown in the drawings, which is only for the sake of clarity and convenience of description of the technical solution, and thus, should not be construed as limiting the present invention.
Example 2
A driving apparatus having the lens driving apparatus as described in embodiment 1. In the present embodiment, other structures of the driving device are the same as those of the prior art, and therefore, detailed description thereof is omitted.
Example 3
An electronic device having the driving apparatus as described in embodiment 2. In the embodiment, other structures of the electronic device are the same as those of the prior art, and therefore, detailed description thereof is omitted.
The utility model discloses in, the cavity main part can be cylindric, also can be provided with other shapes, as long as can realize the utility model discloses other structures of function all can, for example the shown square structure of figure 15, if for the cavity main part of square structure, spacing arch (12) can be located the corner of cavity main part so, mounting groove (14) are located the side of cavity main part promptly, the yoke trades, the magnetite, shell fragment and coil can be according to the change of structure and do corresponding change, because the cylindrical structure mode in its structural style and the embodiment is unanimous, the event is no longer repeated here.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A lens driving device comprising a carrier (1), characterized in that: also comprises
A plurality of inner ring magnets (2) distributed along the outer side of the carrier (1),
a plurality of coils (3) arranged outside the inner ring magnet (2),
a plurality of outer ring magnets (4) arranged outside the coil (3),
and the magnetic yoke ring (5) is sleeved on the outer sides of the carrier (1), the inner ring magnet (2), the coil (3) and the outer ring magnet (4).
2. The lens driving device according to claim 1, wherein: the carrier (1) comprises a hollow main body (11), a plurality of limiting bulges (12) are uniformly distributed along the peripheral surface of the hollow main body (11), and a limiting ring (13) is arranged along the bottom edge of the hollow main body (11);
the top of the limiting bulge (12) is flush with the top of the hollow main body (11), and the bottom of the limiting bulge (12) is connected with the upper surface of the limiting ring (13); the plurality of limiting bulges (12) and the limiting ring (13) form a plurality of mounting grooves (14) on the peripheral surface of the hollow main body (11);
the inner ring magnet (2) is arranged in the mounting groove (14).
3. The lens driving device according to claim 1, wherein: the magnetic coil is characterized by further comprising an upper elastic sheet (6) arranged at the tops of the carrier (1), the inner ring magnet (2), the coil (3) and the outer ring magnet (4), wherein the upper surface of the upper elastic sheet (6) is connected with the inner surface of the yoke ring (5).
4. The lens driving device according to claim 2, wherein: the device also comprises a lower elastic sheet (7) positioned below the carrier (1), wherein the lower elastic sheet (7) is arranged in the base (8).
5. The lens driving device according to claim 4, wherein: the base (8) is arranged at the bottom of the carrier (1), the base (8) comprises a plate-shaped main body (81), a through round hole (82) is formed in the middle of the plate-shaped main body (81), and a limiting groove (83) is formed along the edge of the through round hole (82);
four corners of the base (8) are respectively provided with a connecting groove (84), and the connecting grooves (84) are communicated with the limiting grooves (83);
the lower elastic sheet (7) is arranged in the limiting groove (83) and the connecting groove (84).
6. The lens driving device according to claim 5, wherein: the through round hole (82) of the base (8) is opposite to the hollow main body (11) of the carrier (1).
7. The lens driving device according to claim 5, wherein: the spring plate type switch is characterized by further comprising a terminal (9) with a first connecting end (91) and a second connecting end (92), wherein the first connecting end (91) is arranged in a connecting groove (84) of the base (8) and is connected with the lower spring plate (7), and the second connecting end (92) extends to the lower portion of the base (8).
8. A photographic apparatus, characterized in that: having a lens driving device as claimed in any one of claims 1-7.
9. An electronic device, characterized in that: the camera device according to claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022012738.3U CN212588249U (en) | 2020-09-15 | 2020-09-15 | Lens driving device, camera device and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022012738.3U CN212588249U (en) | 2020-09-15 | 2020-09-15 | Lens driving device, camera device and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212588249U true CN212588249U (en) | 2021-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022012738.3U Active CN212588249U (en) | 2020-09-15 | 2020-09-15 | Lens driving device, camera device and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212588249U (en) |
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2020
- 2020-09-15 CN CN202022012738.3U patent/CN212588249U/en active Active
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