Mirror base and camera module

Abstract

A rigid part is arranged on a main body of the mirror base, vent holes communicated with the interior of the main body of the mirror base are formed in the rigid part at intervals, and the internal size of the vent holes is larger than the outer diameter of air molecules and smaller than the outer diameter of water molecules. According to the lens base, the specific structure size of the air escape hole is improved, so that the air escape hole forms a waterproof and breathable structure, the sealing process of the air escape hole before cleaning the lens after baking can be canceled, and equipment and manpower are saved. The utility model also provides a camera.

Description

Technical Field

[0001] The utility model relates to the technical field of camera modules, in particular to a lens holder and a camera module. Background Art

[0002] Camera modules are mainly applied to electronic devices such as mobile phones, laptops, and tablets. A camera module generally includes a lens assembly, a lens holder, a filter, a circuit board assembly, an image sensor chip, and a connector. The filter is pasted on the lens holder through a dispensing process. The lens assembly is fixed on the lens holder. The lens holder is fixed on the circuit board assembly through dispensing. The image sensor chip is arranged on the circuit board assembly and electrically connected to the circuit board assembly. The image sensor chip is used to receive light to generate an image. One end of the circuit board assembly is electrically connected with a connector, and the connector is used to electrically connect an external device and a power supply. The camera module may further include a motor. The motor is arranged on the lens holder, and the lens assembly is arranged inside the motor. The motor can drive the lens assembly to move up and down for focusing.

[0003] During the production and manufacturing process of the camera module, since the lens holder is fixed on the circuit board through dispensing and the filter is fixed on the lens holder through dispensing, in order to cure the glue, a baking process needs to be implemented during the sealing of the lens holder. When the lens holder is sealed, in order to prevent the lens holder from tilting due to air expansion caused by preheating and baking in an oven or other heating device, escape holes are reserved on the lens holder to improve this problem. The reserved escape holes can enable the gas to be discharged in time when the oven or other heating device is heated at a high temperature, reducing product defects caused by the expansion of the enclosed air due to heat. After the lens holder is sealed, dust-catching glue needs to be drawn and the semi-finished camera module needs to be washed with water.

[0004] As Figure 1 and Figure 2 shown, in the existing camera module, the escape hole 12 on the lens holder 100 is located at the top of the lens holder 100, and the axis of the escape hole 12 is parallel to the axis of the mounting hole for mounting the lens assembly. In order to prevent water from entering the inside of the lens holder 100 when the semi-finished camera module is washed with water, after baking, the lens holder 100 needs to perform an operation of sealing the escape hole, thus requiring investment in equipment and labor costs. Summary of the Utility Model

[0005] In view of this, the utility model provides a lens holder and a camera module. By improving the specific structural dimensions of the escape hole, a waterproof and breathable structure can be formed for the escape hole, and the sealing process of the escape hole before washing the semi-finished camera module after baking can be cancelled, saving equipment and labor.

[0006] A lens holder is provided with a rigid part on the main body of the lens holder. The rigid part is provided with escape holes at intervals that communicate the inside and outside of the main body of the lens holder. The internal dimension of the escape hole is larger than the outer diameter of air molecules and smaller than the outer diameter of water molecules.

[0007] In one embodiment, the main body of the lens holder includes a first support portion and a second support portion; wherein, the first support portion is used to support the lens, and the second support portion surrounds the first support portion to form a cavity structure, and the rigid portion is provided on the second support portion.

[0008] In one embodiment, the second support portion is provided with a mounting through hole, the rigid portion is a sheet metal part, and the metal part is embedded in the mounting through hole; a waterproof and breathable film is provided on the surface of the rigid portion.

[0009] In one embodiment, the metal part and the second support portion are of an integrally formed structure.

[0010] In one embodiment, the metal part is a square structure with a side length not exceeding 1 mm.

[0011] In one embodiment, the thickness of the metal part is less than the thickness of the second support portion.

[0012] In one embodiment, the vent hole is a circular hole.

[0013] In one embodiment, the inner diameter of the vent hole is 20 - 35 um.

[0014] In one embodiment, the number of vent holes is 4 - 6.

[0015] An imaging module is configured with a lens holder as described above, and further includes a lens assembly, a motor, a filter, a circuit board assembly, an image sensor chip, and a connector. A motor is provided on the lens holder, the lens assembly is disposed in the motor, the filter is provided on the lens holder, the lens holder is disposed on the circuit board assembly, the image sensor chip is disposed on the circuit board assembly and electrically connected to the circuit board assembly, and a connector is provided at one end of the circuit board assembly.

[0016] The lens holder and the imaging module provided by the present utility model improve the specific structural dimensions of the vent hole so that the vent hole forms a waterproof and breathable structure, thereby canceling the sealing process of the vent hole before cleaning the semi-finished imaging module after the baking process, saving equipment and labor. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 and Figure 2 Schematically shows the layout structure of the vent holes of the existing lens holder.

[0019] Figure 3 Schematically shows the side sectional structure of the lens holder according to an embodiment of the present utility model.

[0020] Figure 4 Schematically shows Figure 3 the enlarged structure of part A of

[0021] Figure 5 Schematically shows the side view structure of the second support part in an embodiment of the present utility model.

[0022] Figure 6 Schematically shows the overall structure of the rigid part in an embodiment of the present utility model.

[0023] Figure 7 Schematically shows the front view structure of the lens holder according to an embodiment of the present utility model.

[0024] Figure 8 Schematically shows the comparison between the operation process of installing the existing camera during the baking process and the operation process of installing the camera according to an embodiment of the present utility model. Detailed implementation manners

[0025] Next, specific embodiments of the present utility model will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the description of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0026] In the description of the present utility model, unless otherwise clearly defined and limited, terms such as "arranged", "provided with", "disposed on", "installed", "connected", etc. 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific situations.

[0027] The orientation or positional relationship indicated by terms such as "upper", "side part", "top", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this utility model is usually placed during use. It is only for the convenience of description and simplification of the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0028] The term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion. In addition to the listed elements, it may also include other elements not specifically listed.

[0029] The terms "first", "second", etc. are only used to distinguish components with similar attributes, rather than indicating or implying relative importance or a specific order.

[0030] As Figures 3 to 6 As shown, in the mirror base 100 of the embodiment of the present application, a rigid part 11 is provided on the main body of the mirror base 100, and air escape holes 12 communicating with the inside and outside of the main body of the mirror base 100 are evenly spaced on the rigid part 11; the internal dimension of the air escape hole 12 is larger than the outer diameter of air molecules and smaller than the outer diameter of water molecules.

[0031] In the mirror base 100 of the embodiment of the present utility model, by improving the specific structural dimensions of the air escape hole 12, the air escape hole 12 is formed into a waterproof and breathable structure. During water washing, water molecules are larger than 50um and cannot enter the inside of the mirror base 100, while air molecules of 0.3um can enter the inside of the mirror base 100. Therefore, before baking and then cleaning the semi-finished product of the camera module, there is no need to perform the sealing process of the air escape hole 12, which can effectively save equipment and manpower and reduce the overall manufacturing time of the camera module.

[0032] As Figures 3 to 7 As shown, the main body of the mirror base 100 includes a first support part 13 and a second support part 14; wherein, the first support part 13 is used to carry the filter 102 and the lens assembly 101, the second support part 14 encloses the first support part 13 to form a cavity structure 15 around it, the first support part 13 and the second support part 14 are an injection-molded integral structure, and the rigid part 11 is provided on the second support part 14. Specifically, the air escape hole 12 conventionally provided at the top of the mirror base 100 is cancelled, and by arranging the rigid part 11 and the air escape hole 12 on the side wall of the mirror base 100, that is, the second support part 14, it is possible to more effectively prevent water from entering the mirror base 100 when cleaning the semi-finished product of the camera module before baking and then cleaning, without the need to block the air escape hole 12.

[0033] As Figure 3 As shown, in one embodiment, the second support part 14 is provided with an installation through hole 141, and the rigid part 11 is a sheet-shaped metal part, and the metal part is embedded in the installation through hole 141. In one embodiment, the metal part and the second support part 14 are an integral structure. The integral structure makes the connection strength between the metal part and the second support part 14 high and the sealing performance good, thus further improving the waterproof performance of the mirror base 100.

[0034] As Figures 3 to 6 As shown, in one embodiment, the metal part is a square structure with a side length not exceeding 1mm, especially preferably 0.6*0.6mm. The metal part with the above structural dimensions can effectively play the role of waterproof and breathable while minimizing the impact on the main body structure of the mirror base 100. As Figure 3As shown, in one embodiment, the thickness of the metal part is less than that of the second support part 14, which can effectively reduce the material of the metal part and largely avoid affecting the waterproof and breathable effect of the air escape hole 12. A waterproof and breathable film is provided on the surface of the rigid part 11 of the sheet metal part, aiming to further enhance the waterproof and breathable technical effect of the rigid part 11 itself due to the size design of the air escape hole 12.

[0035] As Figure 5 and Figure 6 shown, in one embodiment, the air escape hole 12 is a circular hole. In one embodiment, the inner diameter of the air escape hole 12 is 20 - 35 um. In one embodiment, the number of air escape holes 12 is 4 - 6. The above arrangement structure of the air escape holes 12 can greatly improve the waterproof and breathable effect of the lens holder 100 and simplify the arrangement structure of the air escape holes as much as possible.

[0036] As Figure 3 shown, in one embodiment, the first support part 11 is provided with a stepped structure 16, and the filter 102 is pasted on the stepped structure 16 by dispensing glue.

[0037] As Figure 8 shown, before improvement, the processing technology operation process of the camera module includes: lens holder attachment, product baking, sealing the air escape holes, drawing dust-catching glue, semi-finished product water washing, and motor assembly. To prevent water from entering the inside of the lens holder 100 during the water washing of the camera module, the air escape holes 12 of the lens holder 100 need to be sealed after baking.

[0038] After improvement, on the side wall of the lens holder 100, that is, on the second support part 14, a steel sheet with a size of 0.6 * 0.6 mm is inlaid at one time by a forming device. The steel sheet with a thickness of 1 mm is provided with 4 - 6 air escape holes 12 with a diameter of 20 - 35 um. The air escape holes 12 conventionally provided at the top of the lens holder 100 are cancelled. Since the water molecules are larger than 50 um during water washing, they cannot enter the inside of the lens holder 100, and the air molecules with a size of 0.3 um can enter the inside of the lens holder 100, forming a waterproof and breathable structure. Therefore, after improvement, the operation station for sealing the air escape holes can be cancelled, saving the overall operation process.

[0039] In an embodiment not shown, the rigid part 11 can also be provided at the top of the lens holder 100, and the rigid part 11 is evenly spaced with air escape holes 12 communicating the inside and outside of the main body of the lens holder 100; the internal size of the air escape holes 12 is larger than the outer diameter of the air molecules and smaller than the outer diameter of the water molecules.

[0040] As Figure 3As shown in the figure, based on the same inventive concept as described above, the present application further provides an imaging module, which can be configured with a lens holder 100 as in the foregoing embodiment, and further includes a lens assembly 101, a motor 103, a filter 102, a circuit board assembly 104, an image sensor chip 105, and a connector 106. Among them, a motor 103 is provided on the lens holder 100, the lens assembly 101 is disposed inside the motor 103, and the motor 103 can drive the lens assembly 101 to move up and down for focusing. The filter 102 is adhered to the lens holder 100 by dispensing glue, the lens holder 100 is fixed to the circuit board assembly 104 by dispensing glue, the image sensor chip 105 is disposed on the circuit board assembly 104 and electrically connected to the circuit board assembly 104, and the image sensor chip 105 is used to receive light to generate an image. One end of the circuit board assembly 104 is electrically connected with a connector 106, and the connector 106 is used to electrically connect an external device and a power supply.

[0041] According to the above embodiment, it can be seen that for the lens holder and the imaging module involved in the present utility model, by improving the specific structural dimensions of the vent hole, the vent hole forms a waterproof and breathable structure, and the sealing process of the vent hole before cleaning the semi-finished imaging module after baking can be cancelled, saving equipment and manpower.

[0042] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the appended claims.

Claims

1. A mirror holder, characterized in that: The main body of the mirror base is provided with a rigid part, and the rigid part is provided with escape holes communicating with the inside and outside of the main body of the mirror base at intervals; The inner size of the air escape hole is larger than the outer diameter of an air molecule and smaller than the outer diameter of a water molecule; The air escape hole is a circular hole.

2. The mirror holder according to claim 1, characterized in that: The main body of the mirror holder includes a first supporting portion and a second supporting portion; wherein, The first supporting portion is used to support the lens, and the second supporting portion surrounds the first supporting portion to form a cavity structure; The rigid part is arranged on the second supporting part.

3. The mirror holder according to claim 2, characterized in that: The second supporting part is provided with a mounting through hole, the rigid part is a sheet metal piece, and the metal piece is embedded in the mounting through hole; a waterproof and breathable membrane is provided on the surface of the rigid part.

4. The mirror holder according to claim 3, characterized in that: The metal component and the second supporting portion are an integrally formed structure.

5. The mirror holder according to claim 3 or 4, characterized in that: The metal piece is a square structure with a side length not exceeding 1 mm.

6. The mirror holder according to claim 3 or 4, characterized in that: The thickness of the metal member is smaller than the thickness of the second supporting portion.

7. The mirror holder according to claim 1, characterized in that: The inner diameter of the air escape hole is 20-35 um.

8. The mirror holder according to any one of claims 1 to 4, characterized in that: The number of the air escape holes is 4 to 6.

9. A camera module, characterized in that: The mirror mount is configured with the mirror mount described in any one of claims 1 to 8, and further includes a lens assembly, a motor, a filter, a circuit board assembly, a photosensitive chip and a connector, wherein a motor is provided on the mirror mount, the lens assembly is provided in the motor, the filter is provided on the mirror mount, the mirror mount is provided on the circuit board assembly, the photosensitive chip is provided on the circuit board assembly and is electrically connected to the circuit board assembly, and a connector is provided at one end of the circuit board assembly.

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