Camera module base with heat dissipation effect

Abstract

The utility model discloses a camera module base with a heat dissipation effect. The camera module base comprises a base main body, a lens main body, a sensor main body and a substrate, the sensor main body is arranged at the top of the substrate and is positioned in a cavity in the lower part of the base; the surface of the base lower portion and the surface of the base upper portion are both sprayed with heat dissipation coating, the heat dissipation coating is infrared radiation coating, and the thickness of the heat dissipation coating ranges from micrometer to micrometer. Heat dissipation holes are annularly formed in the inner wall of the base lower part at equal intervals, the surface of the base lower part and the surface of the base upper part are each coated with a layer of infrared radiation coating, so that heat transfer and radiation of the base lower part and the base upper part can be enhanced, and the purpose of rapidly cooling the interior of the base is achieved; the inner heat can be quickly transferred and emitted out through the outer surface of the base, the quick cooling effect is achieved, various defects caused by high temperature of the module are reduced, and the heat in the lower portion of the base can be quickly dissipated out through the heat dissipation holes designed in a matched mode.

Description

Technical Field

[0001] The utility model relates to the technical field of camera modules, in particular to a camera module base with heat dissipation effect. Background Art

[0002] A camera module, also known as a camera module or, is a modular product that integrates components such as cameras, lenses, image sensors, and digital signal processors.

[0003] The camera module is prone to heat up when working. The heat source of the camera module mainly comes from the photosensitive chip (sensor), especially the high-pixel module. After lighting, the surface temperature of the sensor will rise quickly. Since the sensor is located inside the base, its space is small and it is a sealed structure. If the module works under high temperature for a long time, it will have the following effects:

[0004] 1. The high temperature of the module itself can easily accelerate the aging of the module materials, especially the plastic materials, thus shortening the service life of the module;

[0005] 2. The high temperature of the module itself will affect the overall optical performance of the module, especially the optical performance of the plastic lens, such as display noise, clarity MTF variation, and displacement of the clear position;

[0006] 3. The high temperature of electronic components causes them to automatically power off, resulting in module restart or other abnormalities. Utility Model Content

[0007] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a camera module base with heat dissipation effect, comprising a base body, a lens body, a sensor body and a substrate; the base body comprises an integrally formed base lower part and a base upper part, the substrate is arranged at the bottom of the base lower part, the sensor body is arranged at the top of the substrate and is located in a cavity inside the base lower part; the surfaces of the base lower part and the base upper part are sprayed with heat dissipation paint; heat dissipation holes are opened in a circular shape and equidistantly on the inner wall of the base lower part.

[0009] As a further solution of the utility model: the heat dissipation paint is an infrared radiation paint, and the thickness of the heat dissipation paint is 30 microns to 40 microns.

[0010] As a further solution of the utility model: the heat dissipation holes are vertically arranged in four rows on the inner wall of the lower part of the base, and the heat dissipation holes in each row are of the same size.

[0011] As a further solution of the utility model: one end of the heat dissipation hole is communicated with the cavity, and the other end of the heat dissipation hole extends into the frame at the lower part of the base and does not penetrate the lower part of the base.

[0012] As a further solution of the utility model: electronic components used for the operation of the camera module are also installed inside the cavity.

[0013] As a further solution of the utility model: a thread groove is provided on the bottom of the side of the lens body, a thread groove is provided on the inner wall of the upper part of the base, and the lens body is threadedly connected to the inside of the upper part of the base.

[0014] As a further solution of the utility model: the top of the upper part of the base is sealed and connected to the side of the lens body by sealing glue.

[0015] As a further solution of the utility model: the sealing glue is designed to be an inclined structure, which is inclined from the side of the lens body to the top of the upper part of the base.

[0016] As a further solution of the utility model: the lower part and the upper part of the base are both made of plastic or metal.

[0017] As a further solution of the utility model: the top of the upper part of the base is designed to be an open structure, and the interior of the upper part of the base is connected to the cavity of the lower part of the base.

[0018] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0019] In the present application, a layer of infrared radiation paint is sprayed on the surface of the lower part and the upper part of the base, so as to enhance the heat transfer and radiation between the lower part and the upper part of the base, thereby achieving the purpose of rapid cooling inside the base. The internal heat can be transferred and emitted more quickly through its outer surface, thereby playing a role of rapid cooling and reducing various adverse events of the module caused by high temperature. At the same time, a number of heat dissipation holes are opened in the lower part of the base, so that the heat can enter the heat dissipation holes, shortening the distance between the heat and the outside world, so that the internal heat can be dissipated faster, thereby increasing the service life of the camera module. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front cross-sectional structural schematic diagram of the utility model;

[0021] Figure 2 It is a front view structural schematic diagram of the utility model.

[0022] The reference numerals and names in the figures are as follows:

[0023] 1. Lower part of the base; 2. Upper part of the base; 3. Lens body; 4. Heat dissipation coating; 5. Sensor body; 6. Substrate; 7. Sealing glue; 8. Heat dissipation holes; 9. Cavity. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-2 A camera module base with heat dissipation effect includes a base body, a lens body 3, a sensor body 5 and a substrate 6; the base body includes an integrally formed base lower part 1 and a base upper part 2, the base lower part 1 and the base upper part 2 are both made of plastic or metal, the substrate 6 is arranged at the bottom of the base lower part 1, the sensor body 5 is arranged on the top of the substrate 6 and is located in a cavity 9 inside the base lower part 1, and electronic components for camera module operation are also installed inside the cavity 9; the surfaces of the base lower part 1 and the base upper part 2 are sprayed with heat dissipation paint 4; the inner wall of the base lower part 1 is provided with heat dissipation holes 8 in a circular shape and at equal distances.

[0026] See also Figure 1-2 In this embodiment, the heat dissipation paint 4 is an infrared radiation paint, and the thickness of the heat dissipation paint 4 is 30 micrometers to 40 micrometers.

[0027] Specifically, the base lower part 1 and the base upper part 2 coated with infrared radiation paint can quickly transfer and emit the internal heat through their outer surfaces, which plays a role in rapid cooling. When actually spraying on the base lower part 1 and the base upper part 2, one or more spraying can be done as needed to achieve a suitable thickness.

[0028] See also Figure 1 In the present embodiment, four rows of heat dissipation holes 8 are vertically arranged on the inner wall of the lower portion 1 of the base, and the heat dissipation holes 8 in each row are of the same size; one end of the heat dissipation hole 8 is connected to the cavity 9, and the other end of the heat dissipation hole 8 extends into the frame of the lower portion 1 of the base and does not penetrate the lower portion 1 of the base.

[0029] Specifically, a heat dissipation hole 8 that does not penetrate the outside is opened on the inner wall of the lower part 1 of the base, that is, the end of the heat dissipation hole 8 away from the cavity 9 is in a closed state. On the one hand, the sealing of the lower part 1 of the base is ensured, and on the other hand, the heat in the cavity 9 can enter the heat dissipation hole 8, which can shorten the distance between the heat and the outside, so that the heat can be dissipated faster. In addition, a plurality of heat dissipation holes 8 are evenly opened on the inner wall of the lower part 1 of the base, which can further improve the heat dissipation efficiency.

[0030] See also Figure 1 In this embodiment, a threaded groove is provided at the bottom of the side of the lens body 3, and a threaded groove is provided on the inner wall of the base upper part 2. The lens body 3 is threadedly connected to the interior of the base upper part 2. The top of the base upper part 2 is designed as an open structure, and the interior of the base upper part 2 is connected to the cavity 9 of the base lower part 1.

[0031] Specifically, an opening is provided on the upper portion 2 of the base, and the opening is matched with the lower portion of the lens body 3, which can facilitate the lens body 3 to be connected to the interior of the upper portion 2 of the base by means of threads, and the interior of the upper portion 2 of the base is connected to the cavity 9 of the lower portion 1 of the base, so that electronic components used for the operation of the camera module can be installed in the cavity 9 conveniently.

[0032] See also Figure 1-2 In this embodiment, the top of the base upper portion 2 is sealed and connected to the side of the lens body 3 through the sealing glue 7; the sealing glue 7 is designed to be an inclined structure, which is inclined from the side of the lens body 3 to the top of the base upper portion 2.

[0033] Specifically, the base upper portion 2 and the lens body 3 are further connected by the sealing glue 7, so as to improve the sealing of the connection, ensure that external moisture and water vapor cannot enter the base upper portion 2, and ensure the normal operation of the internal electronic components. The sealing glue 7 is designed to be inclined to prevent external moisture or dust from accumulating on the surface of the sealing glue 7, thereby playing a role of inclined diversion.

[0034] It should be noted that when the sensor body 5 of the camera module heat source generates heat, its heat is gathered in the cavity 9 of the lower part 1 of the base, and its main contact surface is the lower part 1 of the base. Therefore, the base coated with infrared radiation paint can transfer and emit the internal heat faster through its outer surface, which plays a role of rapid cooling and reduces various adverse events of the module caused by high temperature. The heat dissipation coating 4 is an infrared radiation heat dissipation coating, and its main components are usually graphene and carbon nanotubes, which are then made with a resin carrier through a special grinding and dispersion process. Graphene with a low number of layers and a small diameter in a flake structure is selected, and then compounded with hexagonal carbon nanotubes. The characteristics of graphene and carbon nanotubes having high thermal radiation and thermal infrared emissivity are utilized to make the coating present a macroscopically smooth and microscopically wavy radiation structure unit. Such a structure can greatly increase the heat dissipation area and conductivity, significantly improve the effect of heat exchange, and quickly dissipate the heat of the heating element to the surroundings to achieve a cooling effect.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A camera module base with heat dissipation effect, characterized in that: It comprises a base body, a lens body (3), a sensor body (5) and a substrate (6); The base body comprises an integrally formed base lower part (1) and a base upper part (2); the substrate (6) is arranged at the bottom of the base lower part (1); and the sensor body (5) is arranged at the top of the substrate (6) and is located in a cavity (9) inside the base lower part (1); The surfaces of the lower part (1) of the base and the upper part (2) of the base are sprayed with heat dissipation paint (4); The inner wall of the lower part (1) of the base is provided with heat dissipation holes (8) in a circular shape and at equal intervals.

2. The camera module base with heat dissipation effect according to claim 1, characterized in that: The heat dissipation paint (4) is an infrared radiation paint, and the thickness of the heat dissipation paint (4) is 30 micrometers to 40 micrometers.

3. The camera module base with heat dissipation effect according to claim 1, characterized in that: The heat dissipation holes (8) are vertically arranged in four rows on the inner wall of the lower part (1) of the base, and the heat dissipation holes (8) in each row are of the same size.

4. The camera module base with heat dissipation effect according to claim 1, characterized in that: One end of the heat dissipation hole (8) is in communication with the cavity (9), and the other end of the heat dissipation hole (8) extends into the frame of the lower part of the base (1) and does not penetrate the lower part of the base (1).

5. The camera module base with heat dissipation effect according to claim 1, characterized in that: Electronic components used for the operation of the camera module are also installed inside the cavity (9).

6. The camera module base with heat dissipation effect according to claim 1, characterized in that: A threaded groove is provided at the bottom of the side of the lens body (3), a threaded groove is provided on the inner wall of the upper part of the base (2), and the lens body (3) is threadedly connected to the inside of the upper part of the base (2).

7. The camera module base with heat dissipation effect according to claim 1, characterized in that: The top of the upper part (2) of the base is sealed and connected to the side of the lens body (3) via sealing glue (7).

8. The camera module base with heat dissipation effect according to claim 7, characterized in that: The sealing glue (7) is designed to be an inclined structure, which is inclined from the side of the lens body (3) to the top of the upper part of the base (2).

9. The camera module base with heat dissipation effect according to claim 1, characterized in that: The base lower part (1) and the base upper part (2) are both made of plastic or metal.

10. The camera module base with heat dissipation effect according to claim 1, characterized in that: The top of the upper part (2) of the base is designed to be an open structure, and the interior of the upper part (2) of the base is connected to the cavity (9) of the lower part (1) of the base.

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