Split type dustproof camera module

Abstract

The utility model relates to the camera module field, and discloses a split type dustproof camera module comprising a lens, an imaging part, a support part and a motor part moving for focusing, the imaging part comprises an FPC board and a sensor electrically connected with the FPC board, the support part is fixed on the FPC board, the support part comprises an inner support ring and an outer support ring, and the inner support ring and the outer support ring are fixed on the FPC board. An IR optical filter is fixed on the inner supporting ring, the outer supporting ring is sleeved outside the inner supporting ring, a gap is formed between the inner wall of the outer supporting ring and the inner supporting ring, and the gap is filled with a glue layer. The camera module provided by the utility model can prevent dust and further reduce the reject ratio of products.

Description

Technical Field

[0001] The utility model relates to the field of camera modules, in particular to a split dustproof camera module. Background Art

[0002] At present, the defective rate of terminal inspection after camera module assembly in the industry is still relatively high. Due to the complex internal structure of the voice coil motor, the internal dirt of the voice coil motor body cannot be completely cleaned, so movable particles are easily generated during the motor assembly process. After the camera module is assembled, the above-mentioned internal particles of the motor are easy to fall onto the supporting structure and move to the IR filter or the upper surface of the sensor to produce black masses, which not only affects the yield of the product, but also affects the user's photo-taking effect. Therefore, it is necessary to provide a camera module that can prevent dust and thus reduce the product defective rate. Utility Model Content

[0003] The utility model aims to provide a split dustproof camera module, so as to provide a camera module which can prevent dust and thus reduce the product defect rate.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a split dust-proof camera module, including a lens, an imaging part, a supporting part and a motor part for moving and focusing, the imaging part including an FPC board and a sensor electrically connected to the FPC board, the supporting part is fixed on the FPC board, the supporting part includes an inner supporting ring and an outer supporting ring, an IR filter is fixed on the inner supporting ring, the outer supporting ring is sleeved outside the inner supporting ring, there is a gap between the inner wall of the outer supporting ring and the inner supporting ring, and the gap is filled with a glue layer.

[0005] The beneficial effects of this program are:

[0006] In this technical solution, the motor part can drive the lens to move for focusing. The technical solution includes a support ring and an outer support ring of the support part. The inner support ring can support the IR filter. The IR filter is fixed on the inner support ring, which can effectively filter infrared rays and eliminate interference or influence caused by infrared rays, thereby ensuring the accuracy of the image and the authenticity of the color, and improving the user's photo effect; there is a gap between the inner wall of the outer support ring and the inner support ring. After the gap is filled with a glue layer, when the camera is assembled, the movable particles on the components will be stuck to the glue layer when they fall down. On the one hand, it effectively prevents the particles from falling onto the IR filter, thereby preventing the generation of black spots, and on the other hand, it ensures that they cannot fall onto the sensor to protect the sensor.

[0007] By preventing particles from falling onto the sensor and IR filter, the incidence of black spot defects is reduced, thereby improving the product yield and reducing the defective rate, making it have a certain self-cleaning ability; during the production process, due to the dust-proof effect of the glue layer, assembly problems caused by particle contamination are reduced, and production efficiency and product consistency are improved.

[0008] Preferably, as an improvement, a ring groove for placing the IR filter is provided inside the inner support ring, a tilting groove is provided on one side of the ring groove, and a guide groove is provided at the bottom of the ring groove opposite to the tilting groove.

[0009] The beneficial effects are as follows: the annular groove can support and position the IR filter, and the IR filter is embedded in the annular groove and fixed, thereby ensuring the placement stability of the IR filter and facilitating the positioning of the IR filter so that it can be completely covered on the sensor during later installation, thereby improving installation efficiency and reducing errors; because the IR filter is very small and not easy to remove from the annular groove, if it needs to be removed after placement, the provision of the tilting groove can facilitate the insertion of a thin plate into the tilting groove to remove the IR filter from the annular groove, and a guide groove is provided at the bottom of the annular groove opposite to the tilting groove, which is convenient for guiding the movement direction of the thin plate, thereby greatly improving the convenience of disassembly and maintenance and avoiding damage to the IR filter.

[0010] Preferably, as an improvement, a light shielding ring is also fixed on the IR filter.

[0011] The beneficial effect is that the shading ring can shield the four sides of the IR sheet. By setting the shading ring, it can be ensured that the gap between the surrounding of the IR sheet and the ring groove will not be transparent, thereby preventing stray light that does not participate in imaging from entering the inside of the bracket.

[0012] Preferably, as an improvement, the surface of the outer support ring is coated with an AA glue layer and fixedly connected to the motor part.

[0013] The beneficial effect is that the fixing strength of the outer support ring and the motor part can be ensured by connecting with glue, and at the same time, it can play a sealing and certain waterproof role.

[0014] Preferably, as an improvement, the carrier is also covered with a multi-layer protective film.

[0015] The beneficial effects are: the multi-layer protective film can prevent the surface of the carrier from being scratched and damaged during assembly and use, protect the integrity of the surface of the carrier, and extend the service life of the camera module.

[0016] Preferably, as an improvement, a QR code is pasted on the FPC board.

[0017] The beneficial effect is that by setting a QR code, the assembly process of the lens module can be tracked. If a problem occurs in a batch of workpieces, it can be quickly traced to when the processing was carried out, which improves the tracking efficiency and helps to ensure the quality of the product.

[0018] Preferably, as an improvement, a lens protection film is also fixed to the end of the lens.

[0019] The beneficial effect is that the lens provided above is protected to prevent dust from falling into the lens during the processing and assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an overall diagram of an embodiment of the utility model;

[0021] Figure 2 An exploded view of an embodiment of the utility model;

[0022] Figure 3 This is a detailed view of the support ring in an embodiment of the present utility model. DETAILED DESCRIPTION

[0023] The following is further described in detail through specific implementation methods:

[0024] The figure marks in the drawings of the specification include: lens 1, motor part 2, FPC board 3, sensor 4, inner support ring 5, outer support ring 6, IR filter 7, ring groove 8, warping groove 9, guide groove 10, shading ring 11, AA glue layer 12, protective film 13, lens protective film 14, bump 15, QR code 16.

[0025] Example

[0026] The embodiment is basically as follows Figure 1-Figure 3 As shown, Figure 1 and Figure 2A split dustproof camera module shown includes a lens 1, an imaging part, a support part, and a motor part 2 for moving and focusing. The imaging part includes an FPC board 3 and a sensor 4 electrically connected to the FPC board 3. The support part is fixed on the FPC board 3 by glue. The support part includes an inner support ring 5 and an outer support ring 6. An IR filter 7 is fixed on the inner support ring 5. The outer support ring 6 is sleeved outside the inner support ring 5. There is a gap between the inner wall of the outer support ring 6 and the inner support ring 5. The gap is filled with an AA glue layer 12. A light shielding ring 11 is also fixed on the IR filter 7 in this embodiment. By setting the light shielding ring 11, the gap between the IR filter and the ring groove 8 around the IR filter can be made lightproof, so as to prevent stray light that does not participate in imaging from entering the inside of the bracket. The carrier is also covered with a multi-layer protective film 13 to prevent the carrier surface from being scratched and damaged during assembly and use, and to protect the integrity of the carrier surface. A lens protective film 14 is also fixed on the end of the lens 1 to prevent dust from falling into the lens 1 during processing and assembly. The surface of the outer support ring 6 is coated with an AA glue layer 12 to fix it to the motor part 2. The glue connection can ensure the fixing strength of the outer support ring 6 and the motor part 2, and can also play a sealing and certain waterproof role.

[0027] like Figure 3 As shown, the inner support ring 5 is provided with an annular groove 8 for placing the IR filter 7. The annular groove 8 can support and position the IR filter 7. The IR filter 7 is embedded in the annular groove 8 and fixed, which ensures the placement stability of the IR filter 7 and facilitates the positioning of the IR filter 7, so that it can be completely covered on the sensor 4 during later installation, thereby improving the installation efficiency and reducing the error. A warping groove 9 is provided on one side of the annular groove 8, and a guide groove 10 is provided at the bottom of the annular groove 8 facing the warping groove 9. Because the IR filter 7 is very small, the IR filter 7 can be easily positioned. It is not very convenient to take it out from the ring groove 8. Therefore, if it needs to be taken out again after being placed, a tilting groove 9 is provided to facilitate the insertion of a thin plate into the tilting groove 9 to take the IR filter 7 out of the ring groove 8. A guide groove 10 is also provided at the bottom of the ring groove 8 opposite to the tilting groove 9, which is convenient for guiding the movement direction of the thin plate, greatly improving the convenience of disassembly and maintenance, and avoiding damage to the IR filter 7 during the removal process. A protrusion 15 is also provided at the bottom of the inner support ring 5, which is convenient for human hand holding to avoid fingerprints contacting the IR filter 7 and affecting the imaging quality.

[0028] A QR code 16 is pasted on the FPC board 3. By setting the QR code 16, the assembly process of the lens 1 module can be tracked. If a problem occurs in a batch of workpieces, it can be quickly traced to when they were processed, which improves tracking efficiency and helps to ensure product quality.

[0029] The specific implementation process is as follows:

[0030] In the technical solution, the motor part 2 can drive the lens 1 to move for focusing. The technical solution includes a support ring and an outer support ring 6 of the support part. The inner support ring 5 can support the IR filter 7. The IR filter 7 is fixed on the inner support ring 5, and can effectively filter infrared rays, eliminate interference or influence caused by infrared rays, thereby ensuring the accuracy of the image and the authenticity of the color, and improving the user's photo effect; there is a gap between the inner wall of the outer support ring 6 and the inner support ring 5. After the AA glue layer 12 is filled in the gap, when the camera is assembled, the movable particles on the components will be stuck by the AA glue layer 12 when they fall down. On the one hand, it effectively prevents the particles from falling onto the IR filter 7, thereby preventing the generation of black spots, and on the other hand, it ensures that it cannot fall onto the sensor 4, thereby protecting the sensor 4.

[0031] By preventing particles from falling onto the sensor 4 and the IR filter 7, the incidence of black spot defects is reduced, thereby improving the yield of the product, reducing the defective rate, and making it have a certain self-cleaning ability; during the production process, due to the dust-proof effect of the AA glue layer 12, the assembly problems caused by particle contamination are reduced, and the production efficiency and product consistency are improved.

[0032] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A split dustproof camera module, characterized in that: It includes a lens, an imaging part, a supporting part and a motor part for moving and focusing. The imaging part includes an FPC board and a sensor electrically connected to the FPC board. The supporting part is fixed on the FPC board. The supporting part includes an inner supporting ring and an outer supporting ring. An IR filter is fixed on the inner supporting ring. The outer supporting ring is sleeved outside the inner supporting ring. There is a gap between the inner wall of the outer supporting ring and the inner supporting ring, and the gap is filled with a glue layer.

2. The split dustproof camera module according to claim 1, characterized in that: A ring groove for placing an IR filter is provided inside the inner support ring, a tilting groove is provided on one side of the ring groove, and a guide groove is provided at the bottom of the ring groove opposite to the tilting groove.

3. The split dustproof camera module according to claim 2, characterized in that: A light-shielding ring is also fixed on the IR filter.

4. The split dustproof camera module according to claim 3, characterized in that: The surface of the outer support ring is coated with an AA glue layer and is fixedly connected to the motor part.

5. The split dustproof camera module according to claim 4, characterized in that: The carrier is also covered with multiple layers of protective film.

6. The split dustproof camera module according to claim 5, characterized in that: There is a QR code on the FPC board.

7. The split dustproof camera module according to claim 6, characterized in that: A lens protective film is also fixed to the end of the lens.

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