CN213028219U

CN213028219U - Camera module

Info

Publication number: CN213028219U
Application number: CN202021611002.1U
Authority: CN
Inventors: 刘述伦; 耿新龙; 计树标
Original assignee: Dongguan Yadeng Electronics Co Ltd
Current assignee: Guangdong haideya Technology Co.,Ltd.
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2021-04-20
Anticipated expiration: 2030-08-05

Abstract

The utility model discloses a camera module, according to the utility model discloses a camera module is including base, camera lens module and drive arrangement. The lens module is used for capturing images, the driving device is arranged on the side face of the lens module and comprises a first metal plate, a second metal plate and a memory alloy wire, the first metal plate is arranged at two corners of the side face of the lens module, the second metal plate is arranged on the base, and the position of the second metal plate corresponds to the positions of the two corners of the lens module; one end of the memory alloy wire is connected with the first metal plate, the other end of the memory alloy wire is inclined upwards and connected with the second metal plate at the other corner, and the memory alloy wire is electrified and contracted to drive the lens module to rotate obliquely relative to the base.

Description

Camera module

Technical Field

The utility model relates to a camera equipment technical field, in particular to camera module.

Background

In the related art, subminiature camera modules having high-level functions have been widely used in mobile communication terminals such as tablet personal computers and smart phones. As mobile communication terminals are miniaturized, image quality may be deteriorated since the influence of hand trembling may become significant when capturing an image. Therefore, in order to obtain clear image quality, a technique for compensating for hand trembling is required. For example, when a camera module is moved, a lens driving apparatus to which an optical anti-shake (OIS) technique is applied may be used to compensate for a camera shake when the camera shake occurs, and generally, a lens is pulled in an opposite direction by applying a force in an opposite direction using the driving apparatus so that a lens shake amplitude is reduced. However, the distance and angle of the lens driving by the mode are too small, when the shaking amplitude of the lens is large, the driving device cannot play a good anti-shaking role on the lens, and the image blurring is serious.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least, for this reason, the utility model provides a camera module, this camera module driving lens's angle is bigger, plays better anti-shake function.

According to the utility model discloses a camera module, including base, lens module and drive arrangement, the lens module is used for catching the image; the driving device is arranged on the side surface of the lens module and comprises a first metal plate, a second metal plate and a memory alloy wire, wherein the first metal plate is arranged at two corners of the side surface of the lens module, the second metal plate is arranged on the base, and the position of the second metal plate corresponds to the positions of the two corners of the lens module; one end of the memory alloy wire is connected with the first metal plate, the other end of the memory alloy wire is inclined upwards and connected with the second metal plate at the other corner, and the memory alloy wire is electrified and contracted to drive the lens module to rotate obliquely relative to the base.

According to the utility model discloses camera module, through so setting up, can reach following beneficial effect at least: the lens module is used for capturing images, the driving device is arranged on the side face of the lens module, the memory alloy wire is electrified and contracted to drive the side edge of the lens module to move upwards so that the lens module rotates relative to the base, the length of the memory alloy wire can be longer, and the driving force is larger. And the pivoted angle of lens module is bigger, can adjust the position that needs with the lens module fast for the image is caught that the lens module can be clear, makes the camera module reach good imaging performance.

In some embodiments of the present invention, the first metal plate protrudes downward, one end of the memory alloy wire is connected to the bottom of the first metal plate, and the other end of the memory alloy wire is connected to the top of the second metal plate.

In some embodiments of the present invention, the first metal plate top is connected to the lens module, and the middle portion is bent outward and the bottom portion protrudes downward.

In some embodiments of the present invention, each side of the lens module is provided with the driving device.

The utility model discloses a some embodiments still including the bottom plate, the bottom plate set up in on the base, the bottom plate is provided with the baffle, the position of baffle with the position of both sides angle department of camera lens module is corresponding, the second metal sheet with baffle fixed connection.

In some embodiments of the present invention, the lens module further comprises a top bead, the top bead is located in the middle of the bottom surface of the lens module, and the lens module passes through the top bead and the base contact each other and the top bead is a supporting point relative to the base.

In some embodiments of the present invention, the middle portion of the base is provided with a convex plate protruding upward, the top of the convex plate is recessed inward to form a groove, and the top bead is disposed in the groove.

In some embodiments of the present invention, the lens module further comprises a circuit board, the circuit board is disposed at the bottom of the lens module, and the circuit board is connected to the base.

In some embodiments of the present invention, the circuit board includes a connecting portion, a frame portion and a connecting arm, the connecting portion is connected to the bottom of the lens module, the frame portion is connected to the base, and the connecting arm is connected to the connecting portion and the frame portion.

In some embodiments of the present invention, the elastic sheet is connected to the bottom of the circuit board, and the shape of the elastic sheet matches with the shape of the circuit board.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above-mentioned additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of an overall structure of a camera module according to an embodiment of the present invention;

fig. 2 is a schematic front view of a camera module according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of a camera module according to an embodiment of the present invention;

fig. 4 is a schematic diagram of an overall structure of a circuit board according to an embodiment of the present invention;

fig. 5 is a schematic diagram of a base and a top bead structure according to an embodiment of the present invention.

Reference numerals:

a base 100, a bottom plate 110, a baffle 111, a boss 120, a groove 121,

The lens module 200, the first metal plate 210, the second metal plate 220, the memory alloy wire 300, the top bead 400, the circuit board 500, the connecting portion 510, the circular hole 511, the frame portion 520, the connecting arm 530, the spring piece 600, and the optical axis S.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

A camera module according to an embodiment of the present invention is described below with reference to fig. 1 to 5.

For example, as shown in fig. 1 and 2, a camera module according to an embodiment of the present invention includes a base 100, a lens module 200, and a driving device. The lens module 200 is used for capturing images, the driving device is disposed on the side of the lens module 200, the driving device includes a first metal plate 210, a second metal plate 220 and a memory alloy wire 300, the first metal plate 210 is disposed at two corners of the side of the lens module 200, the second metal plate 220 is disposed on the base 100, and the position of the second metal plate 220 corresponds to the positions of the two corners of the lens module 200; one end of the memory alloy wire 300 is connected to the first metal plate 210, and the other end of the memory alloy wire is inclined upward and connected to the second metal plate 220 at the other corner, and the memory alloy wire 300 is electrified to contract to drive the lens module 200 to rotate in an inclined manner relative to the base 100.

For example, as shown in fig. 2, the driving device is disposed at a side surface of the lens module 200, the driving device includes a memory alloy wire 300, a first metal plate 210 and a second metal plate 220, and the first metal plate 210 is disposed on the lens module 200 and located at two side corners of the side surface of the lens module 200, and is fixedly connected to the lens module 200. The second metal plate 220 is disposed on the base 100, and the positions of the second metal plate 220 correspond to the positions of two corners of the lens module 200. The memory alloy wire 300 has one end connected to the first metal plate 210 and the other end inclined upward to be connected to the second metal plate 220 at the other corner. When the memory alloy wire 300 is electrified and contracted, the side of the lens module 200 is driven by the pulling force generated by the memory alloy wire 300 to incline upwards and rotate relative to the base 100, so that the lens module 200 can be quickly adjusted to a proper position.

The driving device is disposed at a side of the lens module 200, for example, as shown in fig. 2, two memory alloy wires 300 are disposed at the same side of the lens module 200, the two memory alloy wires 300 are respectively connected to the first metal plate 210 and the second metal plate 220 and are arranged in a crossing manner, so that the memory alloy wires 300 can support the lens module 200, and when the two memory alloy wires 300 are simultaneously contracted, a resultant force generated by the two memory alloy wires 300 is in the same direction as the optical axis S of the lens module 200, so as to drive the side of the lens module 200 to move upward, and the other side opposite to the side is relatively lowered, so that the lens module 200 rotates relative to the base 100.

In this way, the memory alloy wire 300 can adjust the moving speed of the lens module 200 faster, and the moving angle of the lens module 200 is larger, so that the quality of the image captured by the lens module 200 can be adjusted faster. While the length of the memory alloy wire 300 can be set longer to have a larger driving stroke.

In some embodiments of the present invention, the first metal plate 210 protrudes downward, and one end of the memory alloy wire 300 is connected to the bottom of the first metal plate 210, and the other end is connected to the top of the second metal plate 220.

For example, as shown in fig. 1 and 2, the first metal plate 210 is elongated, one end of the first metal plate is fixedly connected to the lens module 200, the other end of the first metal plate protrudes downward, and one end of the second metal plate 220 is connected to the base 100 and protrudes upward. The memory alloy wire 300 has one end connected to the bottom of the first metal plate 210 and the other end connected to the top of the second metal plate 220.

By such an arrangement, the inclination degree of the memory alloy wire 300 is increased, and the memory alloy wire 300 can more easily drive the lens module 200 to rotate.

In some embodiments of the present invention, the top of the first metal plate 210 is connected to the lens module 200, and the middle portion is bent outward and the bottom portion is protruded downward.

For example, as shown in fig. 1 and 3, the top of the first metal plate 210 is connected to the lens module 200, and is attached to the lens module 200, the middle portion of the first metal plate is bent outward, and is disposed in an L shape with the top bead 400 of the first metal plate 210, and the bottom of the first metal plate is protruded downward.

The memory alloy wire 300 is connected with the bottom of the first metal plate 210 and the top of the second metal plate 220, and the middle of the first metal plate 210 is bent and the bottom is protruded downwards, so that the bottom of the first metal plate 210 and the top of the second metal plate 220 are close to the same vertical plane, and the force of the memory alloy wire 300 drives the lens module 200 to move more easily.

In some embodiments of the present invention, each side of the lens module 200 is provided with a driving device.

For example, as shown in fig. 1, each side of the lens module 200 is provided with a driving device, so that the driving device can drive the lens module 200 from each side, and the lens module 200 of the camera module is easier to control and more accurate to adjust.

In some embodiments of the present invention, the bottom plate 110 is further included, the bottom plate 110 is disposed on the base 100, the bottom plate 110 is provided with a baffle 111, the position of the baffle 111 corresponds to the positions of two corners of the lens module 200, and the second metal plate 220 is fixedly connected to the baffle 111.

For example, as shown in fig. 1 and 5, the base plate 110 is disposed on the base 100, the baffles 111 are disposed at four corners of the base, the positions of the baffles 111 correspond to the positions of two corners of the lens module 200, and the second metal plate 220 is fixedly connected to the baffles 111.

By such an arrangement, the second metal plate 220 can be fixedly connected with the baffle 111, and the structural strength of the second metal plate 220 is enhanced. Since the second metal plate 220 is plate-shaped, the bottom of the second metal plate is fixedly connected to the base 100, and is easily damaged, bent or broken, and the baffle 111 is disposed at the side of the second metal plate, so that the structural strength of the second metal plate 220 can be enhanced.

In some embodiments of the present invention, the lens module further comprises a top ball 400, the top ball 400 is located in the middle of the bottom surface of the lens module 200, and the lens module 200 contacts with the base 100 through the top ball 400 and rotates relative to the base 100 with the top ball 400 as a supporting point.

For example, as shown in fig. 3 and 5, the top ball 400 is disposed between the base 100 and the lens module 200, the top of the top ball 400 contacts with the lens module 200, and the driving device is disposed at a side of the lens module 200, and can drive the lens module 200 to rotate relative to the base 100 with the top ball 400 as a supporting point, so as to achieve the optical anti-shake effect.

The top ball 400 is located above the middle of the base 100 and contacts the base 100 and the lens module 200, and when the driving device drives the lens module 200 to rotate, the lens module 200 can rotate or rotate relative to the base 100 with the top ball 400 as a supporting point, so that the moving path of the lens module 200 is relatively fixed.

Through such an arrangement, when the driving device drives the lens module 200 to rotate relative to the base 100, the top bead 400 can support the lens module 200, so that the driving device is not affected to adjust the lens module 200.

In some embodiments of the present invention, a convex stage 120 is protruded upward from the middle of the base 100, a concave groove 121 is formed at the top of the convex stage 120, and the top bead 400 is disposed in the concave groove 121.

For example, as shown in fig. 3 and 5, a boss 120 is protruded upward from the middle portion of the base 100, the top of the boss 120 is recessed inward to form a groove 121, and a top bead 400 is disposed in the groove 121. The top ball 400 is disposed in the groove 121 to contact the base 100, and the top contacts the lens module 200.

By such arrangement, the distance between the lens module 200 and the base 100 is increased, so that the lens module 200 has a larger movement space when rotating relative to the base 100, and the movement cannot be influenced because the distance between the lens module and the base 100 is too small. The groove 121 at the top of the boss 120 facilitates the placement of the top bead 400 so that the position of the top bead 400 is not easily moved.

Further, the recess 121 is shaped as a hemisphere, and the size of the recess 121 is matched with that of the top bead 400. For example, as shown in fig. 3 and 5, the groove 121 is shaped like a hemisphere and sized to fit the top bead 400, and the top bead 400 can be embedded therein, so that the top bead 400 is better fixed in position and more stable in installation.

Furthermore, the top ball 400 can be fixedly connected to the lens module 200, when the lens module 200 rotates or rotates relative to the base 100, the lens module 200 drives the top ball 400 to rotate in the groove 121, and the top ball 400 contacts with the groove 121 and rotates in the groove 121.

In some embodiments of the present invention, the present invention further comprises a circuit board 500, the circuit board 500 is disposed at the bottom of the lens module 200, and the circuit board 500 is connected to the base 100.

For example, as shown in fig. 3 and 4, the camera module further includes a circuit board 500, and the circuit board 500 is disposed at the bottom of the lens module 200 and connected to the lens module 200 and the base 100. The circuit board 500 is connected to the lens module 200 and can receive the image signal transmitted from the lens module 200, and the circuit board 500 can be connected to a main board of a camera device such as a mobile phone or a camera to convert the image signal into an electrical signal and transmit the electrical signal.

In some embodiments of the present invention, the circuit board 500 includes a connecting portion 510, a frame portion 520 and a connecting arm 530, the connecting portion 510 is connected to the bottom of the lens module 200, the frame portion 520 is connected to the base 100, and the connecting arm 530 connects the connecting portion 510 and the frame portion 520.

For example, as shown in the figures, the circuit board 500 includes a connecting portion 510, a frame portion 520 and a connecting arm 530, wherein the connecting portion 510 is connected to the bottom portion of the lens module 200, the frame portion 520 is connected to the base 100, and the connecting arm 530 connects the connecting portion 510 and the frame portion 520. The frame 520 is connected to the base 100, and the connecting portion 510 protrudes upward through the connecting arm 530 to be connected to the bottom of the lens module 200, so as to receive the image signal transmitted by the lens module 200. When the lens module 200 is driven by the driving device to rotate relative to the base 100, the frame portion 520 of the circuit board 500 is connected to the base 100 and remains stationary, the connecting portion 510 moves along with the lens module 200, and the connecting arm 530 plays a role in supporting rotation.

Further, the circuit board 500 may be a flexible circuit board 500, so that the connecting portion 510 can rotate with the lens module 200.

Furthermore, the connecting portion 510 is provided with a circular hole 511, the position of the circular hole 511 corresponds to the top bead 400, and the top of the top bead 400 is located in the circular hole 511.

The top of the top ball 400 is located in the circular hole 511 to further define the position of the lens module 200 relative to the base 100, so that the position of the lens module 200 can be more stable. Furthermore, the top bead 400 can be fixedly connected with the lens module 200 through the circuit board 500, the contact area between the top bead 400 and the circuit board 500 is larger due to the arrangement of the round hole 511, and the top bead 400 and the circuit board 500 are conveniently welded to enable the top bead 400 and the circuit board 500 to be connected together more stably.

In some embodiments of the present invention, the camera module further includes a spring plate 600, the spring plate 600 is connected to the bottom of the circuit board 500, and the shape of the spring plate 600 matches with the shape of the circuit board 500.

For example, as shown in fig. 1 and 3, the elastic sheet 600 is located at the bottom of the circuit board 500 and connected to the bottom of the circuit board 500. The spring plate 600 has the same shape as the circuit board 500, is located at the bottom of the circuit board 500, and is fixedly connected to the circuit board 500, so as to reinforce the circuit board 500.

A camera module according to an embodiment of the present invention is described in detail below with reference to fig. 1 to 5 as a specific embodiment. It is to be understood that the following description is illustrative only and is not intended as a specific limitation on the invention.

According to the embodiment of the present invention, a camera module comprises a base 100, a lens module 200, a top ball 400, a driving device and a circuit board 500.

The lens module 200 is used for capturing images, and the top bead 400 is disposed between the base 100 and the lens module 200, for example, as shown in fig. 2 and 3, a boss 120 is disposed at the middle of the base 100 in an upward protruding manner, the top of the boss 120 is recessed inward to form a groove 121, the shape of the groove 121 is a hemisphere, the size of the groove is matched with that of the top bead 400, and the top bead 400 is disposed in the groove 121. The top ball 400 is disposed in the groove 121 to contact the base 100, and the top contacts the lens module 200.

The driving device is provided with a plurality of groups, and all the groups are arranged on the side surface of the lens module 200. For example, as shown in fig. 1 and 3, the driving device is connected to the lens module 200 and the base 100, and can suspend the lens module 200. The driving device includes a memory alloy wire 300, a first metal plate 210 and a second metal plate 220, wherein the first metal plate 210 is disposed on the lens module 200 and is located at two corners of the side surface of the lens module 200, and is fixedly connected to the lens module 200. The second metal plate 220 is disposed on the base 100, and the positions of the second metal plate 220 correspond to the positions of two corners of the lens module 200. The memory alloy wire 300 has one end connected to the first metal plate 210 and the other end inclined upward to be connected to the second metal plate 220 at the other corner. When the memory alloy wire 300 is electrified and contracted, the side of the lens module 200 is driven by the pulling force generated by the memory alloy wire 300 to incline upwards and rotate relative to the base 100, so that the lens module 200 can be quickly adjusted to a proper position.

The bottom plate 110 is disposed on the base 100, the four corners of the base are all provided with the baffles 111, the positions of the baffles 111 correspond to the positions of the two corners of the lens module 200, the bottom of the second metal plate 220 is fixedly connected to the base 100, and the side surfaces of the second metal plate are fixedly connected to the baffles 111, so that the structural strength of the second metal plate 220 can be enhanced.

The circuit board 500 is a flexible circuit board 500, such as shown in fig. 4. The circuit board 500 includes a connecting portion 510, a frame portion 520 and a connecting arm 530, wherein the connecting portion 510 is connected to the bottom of the lens module 200, the frame portion 520 is connected to the base 100, and the connecting arm 530 connects the connecting portion 510 and the frame portion 520. The frame 520 is connected to the base 100, and the connecting portion 510 protrudes upward through the connecting arm 530 to be connected to the bottom of the lens module 200, so as to receive the image signal transmitted by the lens module 200. When the lens module 200 is driven by the driving device to rotate relative to the base 100, the frame portion 520 of the circuit board 500 is connected to the base 100 and remains stationary, the connecting portion 510 moves along with the lens module 200, and the connecting arm 530 plays a role in supporting rotation. The connecting portion 510 is provided with a circular hole 511, the position of the circular hole 511 corresponds to the top bead 400, and the top of the top bead 400 is located in the circular hole 511.

The bottom of the circuit board 500 is fixedly connected with the spring plate 600, the shape of the spring plate 600 is the same as that of the circuit board 500, and the spring plate 600 is fixedly connected with the circuit board 500 to reinforce the circuit board 500.

According to the utility model discloses camera module, through so setting up, can reach some following effects at least: the driving device is disposed at a side of the lens module 200, when the memory alloy wires 300 are electrically contracted, the lens module 200 can be driven to rotate relative to the base 100 through the first metal plate 210, a resultant force generated by the two memory alloy wires 300 is in the same direction as the optical axis S of the lens module 200, so as to drive the side of the lens module 200 to move upward, and the other side opposite to the side is relatively lowered, so that the lens module 200 rotates relative to the base 100. In this way, the memory alloy wire 300 adjusts the moving speed of the lens module 200 faster, the moving angle of the lens module 200 is larger, and the length of the memory alloy wire 300 can be set longer, thereby having a larger driving stroke.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A camera module, comprising:

a base;

a lens module for capturing an image;

the driving device is arranged on the side surface of the lens module and comprises a first metal plate, a second metal plate and a memory alloy wire, the first metal plate is arranged at two corners of the side surface of the lens module, the second metal plate is arranged on the base, and the position of the second metal plate corresponds to the positions of the two corners of the lens module; one end of the memory alloy wire is connected with the first metal plate, the other end of the memory alloy wire is inclined upwards and connected with the second metal plate at the other corner, and the memory alloy wire is electrified and contracted to drive the lens module to rotate obliquely relative to the base.

2. The camera module according to claim 1, wherein the first metal plate is provided to protrude downward, and the memory alloy wire has one end connected to a bottom of the first metal plate and the other end connected to a top of the second metal plate.

3. The camera module according to claim 2, wherein the first metal plate is connected to the lens module at a top portion thereof, and has a middle portion bent outward and a bottom portion protruding downward.

4. A camera module according to claim 1, wherein said drive means is provided on each side of said lens module.

5. The camera module according to claim 1, further comprising a base plate, wherein the base plate is disposed on the base, the base plate is provided with a baffle plate, the position of the baffle plate corresponds to the position of two corners of the lens module, and the second metal plate is fixedly connected to the baffle plate.

6. The camera module according to claim 1, further comprising a top bead located at a middle portion of a bottom surface of the lens module, wherein the lens module contacts the base through the top bead and rotates relative to the base with the top bead as a supporting point.

7. A camera module according to claim 6, wherein a projection projects upwardly from the central portion of the base, the top of the projection being recessed inwardly to form a recess, the top bead being disposed in the recess.

8. The camera module according to claim 1, further comprising a circuit board disposed at a bottom of the lens module, wherein the circuit board is connected to the base.

9. The camera module according to claim 8, wherein the circuit board comprises a connecting portion, a frame portion and a connecting arm, the connecting portion is connected to the bottom of the lens module, the frame portion is connected to the base, and the connecting arm connects the connecting portion and the frame portion.

10. The camera module according to any one of claims 8 to 9, further comprising a spring plate, wherein the spring plate is connected to the bottom of the circuit board, and the shape of the spring plate matches the shape of the circuit board.