Camera module and electronic equipment

Abstract

The invention discloses a camera module and electronic equipment. The camera module comprises a module shell, a lens and a vibration reduction structural member, the lens is movably arranged on the module shell; the vibration reduction structural member is arranged in the module shell, the vibration reduction structural member comprises a first deformation part and a second deformation part, the first deformation part and the lens are oppositely arranged, a closed cavity is at least defined by the first deformation part and the second deformation part, and the closed cavity is filled with fluid; and under the condition that the lens extrudes the first deformation part, the second deformation part protrudes towards one side far away from the closed cavity. According to the scheme, the problem that the vibration reduction effect and the vibration reduction service life of the camera module related to the related technology cannot be considered at the same time can be solved.

Description

Technical Field

[0001] The present application belongs to the technical field of electronic equipment design, and specifically relates to a camera module and electronic equipment. Background Art

[0002] As user demands increase, the performance of electronic devices is constantly improving, among which the photo performance of electronic devices is getting better and better. In order to improve the shooting performance, the lens assembly of the camera module is arranged to be movable relative to the housing to achieve focus or anti-shake in the working state.

[0003] However, when the camera module is not in operation, moving or shaking the electronic device will cause the lens assembly to move relative to the housing, and then produce an impact noise with the base inside the housing. In order to reduce the impact noise, a vibration damper is often provided on the base. In the related art, if the strength of the vibration damper is too large, it cannot effectively reduce the impact noise; if the strength is too small, irreversible damage will easily occur when the lens assembly is impacted. Therefore, there is a problem in the related art that the vibration reduction effect and vibration reduction life of the camera module cannot be taken into account at the same time. Summary of the invention

[0004] The invention discloses a camera module and an electronic device to solve the problem that the vibration reduction effect and the vibration reduction life of the camera module involved in the related art cannot be taken into account at the same time.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: In a first aspect, an embodiment of the present invention discloses a camera module, the disclosed camera module comprising a module housing, a lens and a vibration reduction structure; wherein the lens is movably disposed on the module housing; The vibration reduction structure is arranged in the module housing, and the vibration reduction structure includes a first deformation part and a second deformation part, the first deformation part is arranged opposite to the lens, and at least the first deformation part and the second deformation part form a closed cavity, and the closed cavity is filled with a fluid; When the lens presses the first deformable portion, the second deformable portion protrudes toward a side away from the closed cavity.

[0006] In a second aspect, an embodiment of the present invention discloses an electronic device, which includes a device housing and a camera module. The camera module is disposed in the device housing, and the camera module is the camera module described in the first aspect.

[0007] The technical solution adopted by the present invention can achieve the following technical effects: The camera module disclosed in the embodiment of the present invention optimizes the design of the vibration-damping structure so that the vibration-damping structure includes a first deformation portion and a second deformation portion, and at the same time, the vibration-damping structure is formed with at least the first deformation portion and the second deformation portion to form a closed cavity filled with fluid. This structure can enable the first deformation portion to be deformed when the lens squeezes the first deformation portion, and since the closed cavity is a closed structure, the first deformation portion is deformed, and after the first deformation portion is deformed, energy is transferred through the fluid to force the second deformation portion to bulge to the side away from the closed cavity to buffer the impact of the lens, thereby effectively absorbing the energy during the impact. Therefore, the squeezing of the lens will not cause the vibration-damping structure to be crushed; after the impact, the first deformation portion and the second deformation portion can both return to their original state, thereby extending the service life of the vibration-damping structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a partial structural schematic diagram of a camera module in a state disclosed in an embodiment of the present invention; Figure 2 is a partial structural schematic diagram of a camera module in another state disclosed in an embodiment of the present invention; Figure 3 It is a partial structural schematic diagram of another camera module in a state disclosed in an embodiment of the present invention; Figure 4 is a partial structural schematic diagram of another camera module in another state disclosed in an embodiment of the present invention; Figure 5 It is a partial structural schematic diagram of another camera module disclosed in an embodiment of the present invention.

[0009] Description of reference numerals: 10-module housing, 11-groove, 12-connection slot, 20-lens, 30 - vibration-damping structural member, 31 - first deformation portion, 32 - second deformation portion, 33 - closed cavity, 34 - main body, 35 - accommodating space, 36 - transducer assembly, 361 - piezoelectric element, 362 - resistor, 37 - connecting portion. DETAILED DESCRIPTION

[0010] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0011] The terms "first", "second", etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more.

[0012] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0013] Please refer to Figures 1 to 5 The embodiment of the present invention discloses a camera module. The camera module disclosed in the embodiment of the present invention includes a module housing 10, a lens 20 and a vibration reduction structure 30.

[0014] The module housing 10 is a peripheral component of the camera module, and can provide a mounting position for the lens 20 and the vibration reduction structure 30. In the embodiment of the present invention, the lens 20 and the vibration reduction structure 30 are both mounted on the module housing 10.

[0015] The lens 20 is used for framing during the shooting process of the camera module. At least part of the lens 20 can be arranged inside the module housing 10, so as to cooperate with the photosensitive chip arranged in the module housing 10 to achieve shooting. In an embodiment of the present invention, the lens 20 is movably arranged in the module housing 10. In one embodiment, the lens 20 can be movably arranged on the module housing 10 by slidingly cooperating with the inner wall of the module housing 10. In another embodiment, the lens 20 can also be movably arranged on the module housing 10 by providing a rolling ball between the inner wall of the module housing 10. It should be noted that the embodiment of the present invention does not limit the specific structure of the lens 20 being movably arranged in the module housing 10.

[0016] In the embodiment of the present invention, the lens 20 may be a periscope lens or a non-periscope lens, and the embodiment of the present invention does not limit the specific design mode of the lens 20.

[0017] The vibration reduction structure 30 performs a vibration reduction function. The vibration reduction structure 30 is arranged in the module housing 10. As described in the background technology, during the specific shooting process, the lens of the camera module needs to move to achieve focus or anti-shake. When the camera module is in a non-working state, if the user moves or shakes the mobile phone, the lens will move relative to the module housing 10 due to inertia and then hit the module housing 10, making an abnormal impact sound.

[0018] In the embodiment of the present invention, the vibration reduction structure 30 includes a first deformation portion 31 and a second deformation portion 32. The first deformation portion 31 is arranged opposite to the lens 20. It should be noted that, in this article, the first deformation portion 31 is arranged opposite to the lens 20, which means that the first deformation portion 31 is arranged in the moving direction of the lens 20, so that the lens 20 can hit the first deformation portion 31 when moving relative to the module housing 10, thereby causing the first deformation portion 31 to deform.

[0019] At least the first deformable part 31 and the second deformable part 32 enclose a closed cavity 33, and the closed cavity 33 is filled with a fluid. In the embodiment of the present invention, the fluid may be a gas, such as air, nitrogen or other types of gas; the fluid may also be a liquid, such as water, oil, etc., and the embodiment of the present invention does not limit the specific type of the fluid. In the embodiment of the present invention, the closed cavity 33 is filled with a fluid, which can transmit pressure. When the lens 20 moves and hits the first deformable part 31, the first deformable part 31 is subjected to pressure, and the pressure is transmitted to the second deformable part 32 through the fluid. Since the elasticity of the second deformable part 32 is greater than the elasticity of the first deformable part 31, the second deformable part 32 can be greatly deformed, thereby converting the kinetic energy of the lens 20 into elastic potential energy inside the vibration reduction structure 30, effectively absorbing the impact energy, reducing the impact noise, and improving the vibration reduction effect.

[0020] At the same time, since the second deformable portion 32 has a certain elasticity, when the lens 20 is away from the vibration reduction structure 30, the second deformable portion 32 can gradually return to its original state, and at the same time, the first deformable portion 31 is driven to return to its original state by the fluid in the closed cavity 33. Therefore, the vibration reduction structure 30 can return to its original state after the impact, thereby extending the service life of the vibration reduction structure 30.

[0021] In the embodiment of the present invention, when the lens 20 squeezes the first deformable portion 31, the second deformable portion 32 may protrude to a side away from the closed cavity 33. While the first deformable portion 31 is squeezed and deformed to reduce vibration, the deformation of the first deformable portion 31 is transmitted to the fluid and the second deformable portion 32, so that the fluid is squeezed and the second deformable portion 32 is deformed to further improve the vibration reduction performance of the vibration reduction structural member 30.

[0022] The camera module disclosed in the embodiment of the present invention optimizes the design of the vibration-damping structure 30, so that the vibration-damping structure 30 includes a first deformation portion 31 and a second deformation portion 32, and at the same time, the vibration-damping structure 30 is surrounded by at least the first deformation portion 31 and the second deformation portion 32 to form a closed cavity 33 filled with fluid. This structure can enable the first deformation portion 31 to deform when the lens 20 squeezes the first deformation portion 31, because the closed cavity 33 is a closed structure, and the first deformation portion 31 is deformed. After the first deformation portion 31 is deformed, the energy is transferred through the fluid to force the second deformation portion 32 to bulge to the side away from the closed cavity 33 to buffer the impact of the lens 20 and effectively absorb the energy during the impact. Therefore, the extrusion of the lens 20 will not cause the vibration-damping structure 30 to be crushed. After the impact, the first deformation portion 31 and the second deformation portion 32 can both return to their original state, thereby extending the service life of the vibration-damping structure 30.

[0023] In the embodiment of the present invention, the vibration-damping structure 30 may have a variety of structures, and the embodiment of the present invention does not limit the specific structure of the vibration-damping structure 30. In one embodiment, the vibration-damping structure 30 may include only the first deformation portion 31 and the second deformation portion 32. In this case, the closed cavity 33 may be surrounded by only the first deformation portion 31 and the second deformation portion 32. Further, the elastic coefficient of the first deformation portion 31 is smaller than the elastic coefficient of the second deformation portion 32. The first deformation portion 31 may be installed in the module housing 10 as a connecting portion of the vibration-damping structure 30. When the first deformation portion 31 is squeezed, the first deformation portion 31 will deform, and then the second deformation portion 32 will be driven to deform through the fluid.

[0024] In another embodiment, the vibration-damping structural member 30 may further include a main body 34. The main body 34 may serve as the main body portion of the vibration-damping structural member 30. The first deformable portion 31 and the second deformable portion 32 may be connected to the main body 34, respectively. The vibration-damping structural member 30 may be installed in the module housing 10 through the main body 34. Specifically, the main body 34 may be installed in the module housing 10 by bonding, connecting with a connector, etc., such as fixed installation. In this case, the main body 34, the first deformable portion 31 and the second deformable portion 32 may together enclose a closed cavity 33. The main body 34 is a rigid member or a structural member whose elastic coefficient is smaller than that of the first deformable portion 31 and the second deformable portion 32, thereby facilitating the installation of the vibration-damping structural member 30 in the module housing 10.

[0025] In the embodiment of the present invention, the main body 34 can be an integral structure with the first deformable portion 31 and the second deformable portion 32, or can be sealed and connected by bonding to form a closed cavity 33. The embodiment of the present invention does not limit the specific connection method of the main body 34, the first deformable portion 31 and the second deformable portion 32.

[0026] As described above, the main body 34 is the main part of the vibration reduction structure 30. The first deformation part 31 and the second deformation part 32 can be located in various positions on the main body 34. In one embodiment, the first deformation part 31 and the second deformation part 32 can be arranged on both sides of the main body 34. It should be noted that the embodiment of the present invention does not limit the specific positions of the first deformation part 31 and the second deformation part 32 on the main body 34. In other embodiments, the first deformation part 31 and the second deformation part 32 can also be located on the same side of the main body 34, and the second deformation part 32 can be misaligned with the lens 20. In this case, when the lens 20 squeezes the first deformation part 31, the second deformation part 32 will not be affected by the lens 20 and can still protrude to the side away from the closed cavity 33.

[0027] In a further embodiment, the first deformable portion 31 and the second deformable portion 32 may be disposed on opposite sides of the main body 34, the first deformable portion 31 being located on a side of the main body 34 close to the lens 20, and the second deformable portion 32 being located on a side of the main body 34 away from the lens 20. In this case, since the second deformable portion 32 is disposed away from the main body 34, when the lens 20 squeezes the first deformable portion 31, the second deformable portion 32 may be deformed in a direction away from the lens 20, so that the second deformable portion 32 is more likely to deform, which is conducive to improving the vibration reduction effect.

[0028] As described above, the second deformable portion 32 is located on the side of the main body 34 away from the lens 20, so that it can be deformed in the direction away from the lens 20. In order to make the second deformable portion 32 more easily deformable, a groove 11 can be provided on the side of the module housing 10 facing the vibration reduction structure 30, and the second deformable portion 32 can be arranged opposite to the groove 11. In the case where the lens 20 squeezes the first deformable portion 31, the second deformable portion 32 protrudes into the groove 11, so that the deformation of the second deformable portion 32 will not be blocked by the module housing 10.

[0029] In the embodiment of the present invention, the number of the second deformable portion 32 may be one or more, and the embodiment of the present invention does not limit the specific number of the second deformable portion 32. Similarly, the number of the groove 11 may be one or more. In the embodiment where the number of the second deformable portion 32 is more than one, the number of the groove 11 may also be more than one. When the lens 20 squeezes the first deformable portion 31, the plurality of second deformable portions 32 protrude into the plurality of grooves 11 respectively. Specifically, the plurality of second deformable portions 32 may protrude into the plurality of grooves 11 in a one-to-one correspondence.

[0030] In other embodiments, the first deformable portion 31 may be located at the bottom of the lens 20, and the second deformable portion 32 may be located at the peripheral side of the lens 20. In this case, it can be considered that the first deformable portion 31 and the second deformable portion 32 are respectively located on the same side of the main body 34 facing the lens 20. In this case, the first deformable portion 31 and the second deformable portion 32 face different parts of the lens 20. When the lens 20 squeezes the first deformable portion 31, the second deformable portion 32 protrudes toward the direction close to the lens 20 and squeezes the side wall of the lens 20. In this case, the protrusion of the second deformable portion 32 can not only improve the vibration reduction performance of the vibration reduction structure 30, but also make full use of the protruding part of the second deformable portion 32 to rub against the side wall of the lens 20, thereby alleviating the impact of the lens 20, which can further improve the vibration reduction performance of the vibration reduction structure 30. After the impact, as the fluid flows, the second deformable portion 32 returns to its original state, and will not affect the normal working state of the lens 20.

[0031] In a further embodiment, the number of the second deformable portion 32 may be one or more. In an embodiment where there are multiple second deformable portions 32, the multiple second deformable portions 32 may be symmetrically distributed along the circumference of the lens 20. In this case, when the second deformable portion 32 protrudes and squeezes the side wall of the lens 20, a clamping effect may be generated on the lens 20 in the circumferential direction, thereby suppressing further impact of the lens 20; in addition, the multiple second deformable portions 32 may provide relatively balanced damping to the side wall of the lens 20, thereby ultimately achieving a more balanced vibration reduction effect.

[0032] In an embodiment of the present invention, the first deformable portion 31 can be deformed when being squeezed by the lens 20. The first deformable portion 31 can have various shapes, for example, the first deformable portion 31 can be a straight structure. In order to improve the elastic damping performance of the first deformable portion 31, in other embodiments, the first deformable portion 31 can be a curved structure. As described above, the number of the second deformable portions 32 can be multiple and distributed along the circumference of the lens 20, for example, evenly distributed along the circumference of the lens 20. At least the first deformable portion 31 and the plurality of second deformable portions 32 can enclose a housing space 35, and the end of the lens 20 can extend into the housing space 35. This structure can achieve protection for the lens 20, and is also beneficial to the distribution of the second deformable portion 32 in the circumference of the lens 20.

[0033] As described above, the elastic coefficient of the second deformation portion 32 is greater than the elastic coefficient of the main body portion 34, so that the second deformation portion 32 is easier to deform. Alternatively, the thickness of the second deformation portion 32 can be less than the thickness of the main body portion 34, so that the second deformation portion 32 is easier to deform, while the main body portion 34 has sufficient rigidity.

[0034] In the specific design process, the stiffness of the second deformable portion 32 can be adjusted so that the deformation of the second deformable portion 32 is adjustable. Based on this, in one embodiment, at least one of the inner surface or the outer surface of the second deformable portion 32 can be fixed with a deformable body, such as a diaphragm. The deformable body is used to adjust the stiffness of the second deformable portion 32. This structure enables the vibration reduction structural member 30 to be designed uniformly. When different camera modules require the second deformable portion 32 to achieve different preset vibration reduction effects through different degrees of deformation, this can be achieved by installing a deformable body on at least one of the inner surface and the outer surface of the second deformable portion 32. The deformable body can be a plastic sheet, a foam pad, etc. The embodiment of the present invention does not limit the specific structure and material of the deformable body.

[0035] In a further embodiment, at least one of the inner surface and the outer surface of the second deformation portion 32 may be detachably fixed with a plurality of deformation bodies, and the plurality of deformation bodies are stacked. In the specific production process of the camera module, the operator can disassemble and assemble the deformation bodies as needed to adjust the number of deformation bodies, and finally the vibration reduction performance of the vibration reduction structure 30 can be flexibly adjusted to adapt to different application environments.

[0036] The vibration reduction structure 30 disclosed in the embodiment of the present invention may further include a transducer assembly 36. The transducer assembly 36 may include a piezoelectric element 361 and a resistor 362 electrically connected thereto, at least part of the piezoelectric element 361 being disposed in the closed cavity 33 and in contact with the first deformable portion 31. When the lens 20 squeezes the first deformable portion 31, the piezoelectric element 361 generates an electric charge. In this case, the transducer assembly 36 may be designed as a transducer circuit, the resistor 362 and the piezoelectric element 361 are both connected in series in the transducer circuit, and the piezoelectric element 361 is compressed to generate an electric charge, which causes the transducer circuit to be in a pass state. Since the transducer circuit is in a pass state, the resistor 362 generates heat. In this process, the kinetic energy of the lens 20 during the movement and impact process is gradually converted into heat energy of the transducer circuit and consumed. Since the kinetic energy of the lens 20 during the impact process can be converted, the impact can be weakened, thereby achieving the purpose of eliminating abnormal noise.

[0037] In other embodiments, the vibration-damping structural member 30 of the embodiment of the present invention may also be a common vibration-damping structural member (such as Figure 5 As shown), it can also be a vibration-damping structural component that does not have a closed cavity 33 but has an open inner cavity (i.e., an inner cavity connected to the external environment). The vibration-damping structural component 30 of this structure can also be configured with the transducer component 36 described above, so as to achieve the purpose of improving the vibration-damping performance of the vibration-damping structural component 30 only from the perspective of transducer.

[0038] The embodiment of the present invention does not limit the installation method of the vibration-damping structure 30 in the module housing 10. As described above, the main body 34 can be installed in the module housing 10 by bonding, connecting with a connector, etc. In order to facilitate the installation in the module housing 10, the vibration-damping structure 30 disclosed in the embodiment of the present invention may also include a connecting portion 37, and the connecting portion 37 is specifically used to realize the installation of the vibration-damping structure 30 in the module housing 10. The inner wall of the module housing 10 may be provided with a connecting groove 12, and the connecting portion 37 extends into the connecting groove 12 and is connected to the connecting groove 12. Specifically, the connecting portion 37 is a connecting protrusion. The connecting portion 37 can be connected to the main body 34 mentioned above, and can also be connected to the first deformation portion 31, and can also be connected to the second deformation portion 32, which is not limited by the embodiment of the present invention.

[0039] Based on the camera module disclosed in the embodiment of the present invention, the embodiment of the present invention discloses an electronic device. The disclosed electronic device includes a device housing and a camera module, and the camera module is arranged in the device housing. Specifically, the camera module can be fixed in the device housing by bonding, connecting with a connector, etc. The camera module can be the camera module described in the above embodiment.

[0040] The above embodiments of the present invention focus on the differences between the various embodiments. As long as the different features of the various embodiments are not contradictory, they can be combined to form more specific embodiments. Considering the simplicity of the text, they will not be repeated here.

[0041] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation modes, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A camera module, characterized in that: It comprises a module housing, a lens and a vibration reduction structure; wherein the lens is movably arranged on the module housing; The vibration reduction structure is arranged in the module housing, and the vibration reduction structure includes a first deformation part and a second deformation part, the first deformation part is arranged opposite to the lens, and at least the first deformation part and the second deformation part form a closed cavity, and the closed cavity is filled with a fluid; When the lens presses the first deformable portion, the second deformable portion protrudes toward a side away from the closed cavity.

2. The camera module according to claim 1, characterized in that: The vibration-damping structural member further includes a main body, and the first deformation portion and the second deformation portion are respectively arranged on two sides of the main body.

3. The camera module according to claim 2, characterized in that: The first deformable portion and the second deformable portion are disposed on opposite sides of the main body, the first deformable portion is located on a side of the main body close to the lens, and the second deformable portion is located on a side of the main body far from the lens.

4. The camera module according to claim 3, characterized in that: A groove is provided on one side of the module housing facing the vibration reduction structure, and the second deformation portion is arranged opposite to the groove. When the lens presses the first deformation portion, the second deformation portion protrudes into the groove.

5. The camera module according to claim 2, characterized in that: The first deformable portion is located at the bottom of the lens, and the second deformable portion is located at the peripheral side of the lens. When the lens presses the first deformable portion, the second deformable portion protrudes toward the direction approaching the lens and presses the side wall of the lens.

6. The camera module according to claim 5, characterized in that: There are multiple second deformation parts, and the multiple second deformation parts are symmetrically distributed along the circumference of the lens.

7. The camera module according to claim 6, characterized in that: The first deformable portion is a curved structure, and at least the first deformable portion and a plurality of the second deformable portions form a receiving space, and an end portion of the lens can extend into the receiving space.

8. The camera module according to claim 2, characterized in that: The thickness of the second deformation portion is smaller than the thickness of the main body portion; or the elastic coefficient of the second deformation portion is larger than the elastic coefficient of the main body portion.

9. The camera module according to claim 1, characterized in that: A deformation body is fixed to at least one of the inner surface and the outer surface of the second deformation portion, and the deformation body is used to adjust the rigidity of the second deformation portion.

10. The camera module according to claim 1, characterized in that: The vibration-damping structure also includes a transducer component, which includes a piezoelectric component and a resistor electrically connected thereto. At least a portion of the piezoelectric component is disposed in the closed cavity and in contact with the first deformation portion. When the lens squeezes the first deformation portion, the piezoelectric component generates an electric charge.

11. The camera module according to claim 1, characterized in that: The lens is a periscope lens, the vibration reduction structure also includes a connecting portion, the inner wall of the module housing may be provided with a connecting groove, and the connecting portion extends into the connecting groove and is connected to the connecting groove.

12. An electronic device, characterized in that: It comprises a device housing and a camera module, wherein the camera module is arranged in the device housing, and the camera module is the camera module described in any one of claims 1-11.

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