Camera module and electronic equipment

Abstract

The utility model provides a camera module and electronic equipment, and aims to improve the focusing fluency on the basis of low cost, and the camera module comprises a photosensitive assembly; the focusing assembly comprises a focusing motor and a lens, the lens is arranged on the photosensitive side of the photosensitive assembly, and the focusing motor is arranged on the photosensitive assembly, connected with the lens and used for driving the lens to move in the optical axis direction of the lens; the variable aperture comprises a fixing seat, a supporting seat, a plurality of blades, a first coil and a first magnet, the fixing seat is arranged on the side, away from the light sensing assembly, of the focusing motor, the supporting seat is arranged on the lens in a sleeving mode, a light inlet through hole is formed in the light inlet side of the lens, and the blades are rotationally connected with the supporting seat and movably contained in the light inlet through hole; the first coil is arranged on the fixing base, the first magnet is movably arranged on the supporting base and corresponds to the first coil, the first magnet is connected with the blades, and when the first coil is powered on, the first magnet drives the blades to rotate relative to the supporting base.

Description

Technical Field

[0001] This application relates to the field of camera technology, specifically to a camera module and electronic device. Background Technology

[0002] Variable aperture improves the image capture effect of the camera module by adjusting the amount of light entering the lens. Currently, most variable apertures are mounted as a whole on the lens, which makes the lens heavy and expensive, and makes the focusing motor prone to jamming when the lens is focusing. Utility Model Content

[0003] In view of the above, it is necessary to provide a camera module and electronic device to improve the smoothness of focusing at a low cost.

[0004] This application provides a camera module, including:

[0005] Photosensitive components;

[0006] A focusing assembly includes a focusing motor and a lens. The focusing motor is located on the photosensitive assembly, and the lens is connected to the focusing motor and located on the photosensitive side of the photosensitive assembly, so as to move along the optical axis of the lens under the drive of the focusing motor.

[0007] The variable aperture includes a fixed base, a support base, multiple blades, a first coil, and a first magnet. The fixed base is located on the side of the focusing motor away from the photosensitive component. The support base is sleeved on the lens and has a light entrance hole on the light entrance side of the lens. The multiple blades are rotatably connected to the support base and are movably accommodated within the light entrance hole, forming a light-transmitting aperture. The first coil is located on the fixed base, and the first magnet is movably located on the support base and corresponding to the first coil. The first magnet is connected to the multiple blades. When the first coil is energized, the first magnet drives the multiple blades to rotate relative to the support base to adjust the aperture of the light-transmitting aperture.

[0008] In the aforementioned camera module, the mounting base and support base of the variable aperture are separately arranged. The first coil is mounted on the mounting base, while the first magnet and multiple blades are mounted on the support base. This reduces the weight on the lens and improves the smoothness of focusing. Furthermore, the mounting base is directly mounted on the focusing motor, simplifying installation and reducing the manufacturing cost of the camera module.

[0009] In some embodiments, the fixing seat is sleeved on the support seat, and the fixing seat and the support seat are coaxially arranged.

[0010] Therefore, the coaxial arrangement of the fixed base and the support base can improve the overall stability of the camera module.

[0011] In some embodiments, the direction from the south pole of the first magnet to the north pole of the first magnet is parallel to the direction of rotation of the blade.

[0012] Therefore, the direction from the south pole to the north pole of the first magnet is parallel to the rotation direction of the blade. When the first coil is energized, the direction of the Ampere force on the first magnet is tangent to the rotation direction of the blade and parallel to the plane of the support base. This allows most of the Ampere force on the first magnet to be used to drive the blade to rotate relative to the support base, which helps to improve the utilization rate of the generated Ampere force. In addition, the direction from the south pole to the north pole of the first magnet being parallel to the rotation direction of the blade also allows the first magnet to be set up more vertically, which is beneficial for the miniaturization of the camera module.

[0013] In some embodiments, the variable aperture further includes:

[0014] The second coil is disposed on the fixed base;

[0015] The second magnet is movably mounted on the support base and is correspondingly arranged with the second coil, and the second magnet is connected to the plurality of blades respectively;

[0016] When the second coil is energized, the second magnet causes the plurality of blades to rotate relative to the support base, and the direction in which the second magnet causes the plurality of blades to rotate relative to the support base is the same as the direction in which the first magnet causes the plurality of blades to rotate relative to the support base.

[0017] Therefore, by cooperating with the first coil, the first magnet, the second coil, and the second magnet, two driving forces are formed to drive multiple blades to rotate relative to the support base. This is beneficial to improving the efficiency of the rotation of multiple blades and can greatly improve the uniformity of force on multiple blades during the rotation process.

[0018] In some embodiments, the direction from the south pole of the second magnet to the north pole of the second magnet is parallel to the rotation direction of the blade.

[0019] Therefore, the direction from the south pole to the north pole of the second magnet is parallel to the rotation direction of the blade. When the second coil is energized, the direction of the Ampere force on the second magnet is tangent to the rotation direction of the blade and parallel to the plane of the support base. This allows most of the Ampere force on the second magnet to be used to drive the blade to rotate relative to the support base, which helps to improve the utilization rate of the generated Ampere force. In addition, the direction from the south pole to the north pole of the second magnet being parallel to the rotation direction of the blade also allows the second magnet to be set up more vertically, which is beneficial for the miniaturization of the camera module.

[0020] In some embodiments, the first magnet and the second magnet are arranged symmetrically about the center of the support.

[0021] Therefore, the centrally symmetrical arrangement of the first and second magnets can make the force on the support base more symmetrical, which is beneficial to improving the stability of the support base and preventing the support base from shaking or tilting during the rotation of multiple blades.

[0022] In some embodiments, the fixing base has a mounting through hole, and the side wall of the mounting through hole has a first mounting groove and a second mounting groove. The first coil is housed in the first mounting groove, and the second coil is housed in the second mounting groove. The support base has a first movable groove and a second movable groove. The first movable groove communicates with the mounting through hole and corresponds to the first mounting groove. The second movable groove communicates with the mounting through hole and corresponds to the second mounting groove. The first magnet is movably disposed in the first movable groove, and the second magnet is movably disposed in the second movable groove.

[0023] Therefore, the first mounting slot and the second mounting slot enable the first coil and the second coil to form an embedded structure with the fixed base respectively, and the first movable slot and the second movable slot enable the first magnet and the second magnet to form an embedded structure with the support base respectively, which is beneficial to the miniaturization of the camera module.

[0024] In some embodiments, the mounting base further includes a limiting groove communicating with the first mounting groove and the second mounting groove, the limiting groove being arranged circumferentially along the mounting base, and the variable aperture further includes:

[0025] A flexible circuit board is housed in the limiting groove and electrically connected to the first coil and the second coil respectively, and the first coil and the second coil are respectively fixedly connected to the side of the flexible circuit board facing the support base.

[0026] Therefore, the flexible circuit board is placed in the limiting groove, which can avoid occupying space outside the fixed base and is conducive to the miniaturization of the camera module.

[0027] In some embodiments, the camera module further includes:

[0028] A flexible component is fitted onto the lens and located on the side of the support facing the photosensitive component.

[0029] Therefore, flexible components can prevent the support from damaging the lens.

[0030] This utility model embodiment also provides an electronic device, including:

[0031] case;

[0032] The aforementioned camera module is disposed within the housing.

[0033] In the camera module of the aforementioned electronic device, the fixed base and support base of the variable aperture are set separately. The first coil is set on the fixed base, and the first magnet and multiple blades are set on the support base. This reduces the weight on the lens and helps improve the smoothness of focusing in the electronic device. In addition, the fixed base is directly set on the focusing motor, which simplifies installation and reduces the manufacturing cost of the electronic device. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the camera module in an embodiment of this application.

[0035] Figure 2 for Figure 1 The diagram shown is an exploded view of the camera module.

[0036] Figure 3 for Figure 2 The diagram shows a cross-sectional view of the support base, multiple blades, first magnet, and second magnet along the AA direction in the camera module shown.

[0037] Figure 4 This is a schematic diagram of the structure of an electronic device according to an embodiment of this application.

[0038] Key component symbols: Camera module 100, photosensitive component 110, focusing component 120, focusing motor 121, lens 122, variable aperture 130, mounting base 131, mounting through hole 131a, first mounting groove 131b, second mounting groove 131c, limiting groove 131d, support base 132, light inlet hole 132a, first movable groove 132b, second movable groove 132c, blade 133, light transmission hole 133a, first coil 134, first magnet 135, second coil 136, second magnet 137, flexible circuit board 138, flexible component 140. Detailed Implementation

[0039] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0040] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows communication between the two; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two elements or the interaction between two elements. In the description of this application, it should be noted that "multiple" means two or more, unless otherwise expressly and specifically limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0041] The embodiments of this case will be described in detail below with reference to the accompanying drawings.

[0042] Please see Figure 1 This application provides a camera module 100, including a photosensitive component 110, a focusing component 120, and a variable aperture 130, to improve focusing smoothness at a low cost. The camera module 100 can be installed on electronic devices such as mobile phones and tablets.

[0043] Please see Figure 2 and Figure 3 The focusing assembly 120 includes a focusing motor 121 and a lens 122. The focusing motor 121 is located on the photosensitive assembly 110, and the lens 122 is connected to the focusing motor 121 and located on the photosensitive side of the photosensitive assembly 110, so as to move along the optical axis of the lens 122 under the drive of the focusing motor 121. The variable aperture 130 includes a fixed base 131, a support base 132, multiple blades 133, a first coil 134, and a first magnet 135. The fixed base 131 is located on the side of the focusing motor 121 away from the photosensitive assembly 110. The support base 132 is sleeved on the lens 122 and has a light entrance hole 132a on the light entrance side of the lens 122. The multiple blades 133 are rotatably connected to the support base 132 and are all movably accommodated in the light entrance hole 132a. The multiple blades 133 surround to form a light transmission hole 133a. The first coil 134 is located on the fixed base 131. The first magnet 135 is movably located on the support base 132 and is correspondingly arranged with the first coil 134. The first magnet 135 is connected to the multiple blades 133 respectively. When the first coil 134 is energized, the first magnet 135 drives the multiple blades 133 to rotate relative to the support base 132 to adjust the aperture of the light transmission hole 133a.

[0044] In this embodiment, the support base 132 is generally cylindrical, and the first magnet 135 is movably disposed on the support base 132 along the circumference of the support base 132.

[0045] In the aforementioned camera module 100, the fixed base 131 and the support base 132 of the variable aperture 130 are separately arranged. The first coil 134 is disposed on the fixed base 131, and the first magnet 135 and multiple blades 133 are disposed on the support base 132. This reduces the load on the lens 122 and improves the smoothness of focusing of the camera module 100. In addition, the fixed base 131 is directly disposed on the focusing motor 121, which simplifies installation and reduces the manufacturing cost of the camera module 100.

[0046] Please see Figure 1 In some embodiments, the fixing seat 131 is sleeved on the support seat 132, and the fixing seat 131 and the support seat 132 are coaxially arranged.

[0047] Therefore, the fixed base 131 and the support base 132 are coaxially arranged, which can improve the overall stability of the camera module 100.

[0048] In some embodiments, the direction from the south pole of the first magnet 135 to the north pole of the first magnet 135 is parallel to the rotation direction of the blade 133.

[0049] Therefore, the direction from the south pole of the first magnet 135 to its north pole is parallel to the rotation direction of the blade 133. When the first coil 134 is energized, the direction of the Ampere force on the first magnet 135 is tangential to the rotation direction of the blade 133 and parallel to the plane of the support base 132. This allows most of the Ampere force on the first magnet 135 to be used to drive the blade 133 to rotate relative to the support base 132, which helps to improve the utilization rate of the generated Ampere force. In addition, the direction from the south pole of the first magnet 135 to its north pole, which is parallel to the rotation direction of the blade 133, also allows the first magnet 135 to be set up more vertically, which is beneficial for the miniaturization of the camera module 100.

[0050] Please see Figure 2 and Figure 3 In some embodiments, the variable aperture 130 further includes a second coil 136 and a second magnet 137. The second coil 136 is disposed on the fixed base 131, and the second magnet 137 is movably disposed on the support base 132 along the circumference of the support base 132 and is correspondingly disposed with respect to the second coil 136. The second magnet 137 is connected to a plurality of blades 133 respectively. When the second coil 136 is energized, the second magnet 137 drives the plurality of blades 133 to rotate relative to the support base 132, and the direction in which the second magnet 137 drives the plurality of blades 133 to rotate relative to the support base 132 is the same as the direction in which the first magnet 135 drives the plurality of blades 133 to rotate relative to the support base 132.

[0051] Therefore, through the cooperation of the first coil 134, the first magnet 135, the second coil 136 and the second magnet 137, two driving forces are formed to drive the multiple blades 133 to rotate relative to the support base 132, which is beneficial to improve the rotation efficiency of the multiple blades 133 and can greatly improve the uniformity of force on the multiple blades 133 during the rotation process.

[0052] In some embodiments, the direction from the south pole of the second magnet 137 to the north pole of the second magnet 137 is parallel to the rotation direction of the blade 133.

[0053] Therefore, the direction from the south pole of the second magnet 137 to its north pole is parallel to the rotation direction of the blade 133. When the second coil 136 is energized, the direction of the Ampere force on the second magnet 137 is tangential to the rotation direction of the blade 133 and parallel to the plane of the support base 132. This allows most of the Ampere force on the second magnet 137 to be used to drive the blade 133 to rotate relative to the support base 132, which helps to improve the utilization rate of the generated Ampere force. In addition, the direction from the south pole of the second magnet 137 to its north pole, parallel to the rotation direction of the blade 133, also allows the second magnet 137 to be set up more vertically, which is beneficial for the miniaturization of the camera module 100.

[0054] In some embodiments, the first magnet 135 and the second magnet 137 are arranged symmetrically about the center of the support base 132.

[0055] Therefore, the centrally symmetrical arrangement of the first magnet 135 and the second magnet 137 can make the force on the support 132 more symmetrical, which is beneficial to improving the stability of the support 132 and preventing the support 132 from shaking or tilting during the rotation of multiple blades 133.

[0056] Please see Figure 2 and Figure 3 In some embodiments, the fixed base 131 has a mounting through hole 131a, and the side wall of the mounting through hole 131a has a first mounting groove 131b and a second mounting groove 131c. The first coil 134 is housed in the first mounting groove 131b, and the second coil 136 is housed in the second mounting groove 131c. The support base 132 has a first movable groove 132b and a second movable groove 132c. The first movable groove 132b is connected to the mounting through hole 131a and corresponds to the first mounting groove 131b. The second movable groove 132c is connected to the mounting through hole 131a and corresponds to the second mounting groove 131c. The first magnet 135 is movably disposed in the first movable groove 132b, and the second magnet 137 is movably disposed in the second movable groove 132c.

[0057] Therefore, the first mounting slot 131b and the second mounting slot 131c enable the first coil 134 and the second coil 136 to form an embedded structure with the fixed base 131 respectively, and the first movable slot 132b and the second movable slot 132c enable the first magnet 135 and the second magnet 137 to form an embedded structure with the support base 132 respectively, which is beneficial to the miniaturization of the camera module 100.

[0058] Please see Figure 2 In some embodiments, the mounting base 131 also has a limiting groove 131d that connects the first mounting groove 131b and the second mounting groove 131c. The limiting groove 131d is arranged circumferentially along the mounting base 131. The variable aperture 130 also includes a flexible circuit board 138. The flexible circuit board 138 is housed in the limiting groove 131d and is electrically connected to the first coil 134 and the second coil 136 respectively. The first coil 134 and the second coil 136 are respectively fixedly connected to the side of the flexible circuit board 138 facing the support base 132.

[0059] Therefore, the flexible circuit board 138 is set in the limiting groove 131d, which can avoid occupying space outside the fixed base 131 and is conducive to the miniaturization of the camera module 100.

[0060] Please see Figure 2 In some embodiments, the camera module 100 further includes a flexible element 140. The flexible element 140 is fitted onto the lens 122 and located on the side of the support 132 facing the photosensitive assembly 110. Exemplarily, the flexible element 140 may be an adhesive pad.

[0061] Therefore, the flexible component 140 can prevent the support 132 from damaging the lens 122.

[0062] Please see Figure 4 This utility model embodiment also provides an electronic device 1000, including a housing 200 and the aforementioned camera module 100, wherein the camera module 100 is disposed in the housing 200. The electronic device 1000 can be a mobile phone, tablet computer, etc.

[0063] In the camera module 100 of the aforementioned electronic device 1000, the fixed base 131 and the support base 132 of the variable aperture 130 are separately arranged. The first coil 134 is disposed on the fixed base 131, and the first magnet 135 and multiple blades 133 are disposed on the support base 132. This reduces the load on the lens 122 and improves the smoothness of focusing of the electronic device 1000. In addition, the fixed base 131 is directly disposed on the focusing motor 121, which simplifies installation and reduces the manufacturing cost of the electronic device 1000.

[0064] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be embraced within this application.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A camera module, characterized in that, include: Photosensitive components; A focusing assembly includes a focusing motor and a lens. The focusing motor is located on the photosensitive assembly, and the lens is connected to the focusing motor and located on the photosensitive side of the photosensitive assembly, so as to move along the optical axis of the lens under the drive of the focusing motor. The variable aperture includes a fixed base, a support base, multiple blades, a first coil, and a first magnet. The fixed base is located on the side of the focusing motor away from the photosensitive component. The support base is sleeved on the lens and has a light entrance hole on the light entrance side of the lens. The multiple blades are rotatably connected to the support base and are movably accommodated within the light entrance hole, forming a light-transmitting aperture. The first coil is located on the fixed base, and the first magnet is movably located on the support base and correspondingly arranged with the first coil. The first magnet is connected to the multiple blades. When the first coil is energized, the first magnet drives the multiple blades to rotate relative to the support base to adjust the aperture of the light-transmitting aperture.

2. The camera module as described in claim 1, characterized in that, The fixing seat is sleeved on the support seat, and the fixing seat and the support seat are coaxially arranged.

3. The camera module as described in claim 2, characterized in that, The direction from the south pole of the first magnet to the north pole of the first magnet is parallel to the direction of rotation of the blade.

4. The camera module as described in claim 2, characterized in that, The variable aperture also includes: The second coil is disposed on the fixed base; The second magnet is movably mounted on the support base and is correspondingly arranged with the second coil, and the second magnet is connected to the plurality of blades respectively; When the second coil is energized, the second magnet causes the plurality of blades to rotate relative to the support base, and the direction in which the second magnet causes the plurality of blades to rotate relative to the support base is the same as the direction in which the first magnet causes the plurality of blades to rotate relative to the support base.

5. The camera module as described in claim 4, characterized in that, The direction from the south pole of the second magnet to the north pole of the second magnet is parallel to the circumference of the support.

6. The camera module as described in claim 4, characterized in that, The first magnet and the second magnet are arranged symmetrically about the center of the support base.

7. The camera module as described in claim 4, characterized in that, The fixed base has a mounting through hole, and the side wall of the mounting through hole has a first mounting groove and a second mounting groove. The first coil is housed in the first mounting groove, and the second coil is housed in the second mounting groove. The support base has a first movable groove and a second movable groove. The first movable groove is connected to the mounting through hole and corresponds to the first mounting groove. The second movable groove is connected to the mounting through hole and corresponds to the second mounting groove. The first magnet is movably disposed in the first movable groove, and the second magnet is movably disposed in the second movable groove.

8. The camera module as described in claim 7, characterized in that, The mounting base also has a limiting groove connecting the first mounting groove and the second mounting groove, the limiting groove being arranged circumferentially along the mounting base, and the variable aperture further includes: A flexible circuit board is housed in the limiting groove and electrically connected to the first coil and the second coil respectively, and the first coil and the second coil are respectively fixedly connected to the side of the flexible circuit board facing the support base.

9. The camera module as described in claim 1, characterized in that, The camera module also includes: A flexible component is fitted onto the lens and located on the side of the support facing the photosensitive component.

10. An electronic device, characterized in that, include: case; The camera module as described in any one of claims 1 to 9, wherein the camera module is disposed in the housing.

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