CN211184040U - Vehicle, camera module and shell assembly thereof - Google Patents

Abstract

The utility model discloses a vehicle, its camera module and casing assembly, this casing assembly includes: the circuit module comprises a first shell and a second shell which are both made of metal materials, wherein the first shell and the second shell are detachably buckled, and an accommodating cavity for accommodating the circuit module is formed by the first shell and the second shell in a surrounding mode; the heat dissipation structure is arranged on the inner surface, facing the containing cavity, of the first shell and/or the second shell, and/or the heat dissipation structure is arranged on the outer surface, far away from the first shell, of the second shell. The utility model provides a housing assembly adopts the metal material casing, and the design has heat radiation structure on the casing, utilizes heat radiation structure to make the heat that chip, electron device produced in the work in time transmit the casing for the metal material, then utilizes the large tracts of land contact of casing and outside air to effectively dispel the heat to promote the radiating efficiency, also improved housing assembly's mechanical properties.

Description

Vehicle, camera module and shell assembly thereof

Technical Field

The utility model relates to a vehicle image acquisition technical field especially relates to a housing assembly for camera module. The utility model discloses still relate to a camera module including this casing subassembly to and the vehicle including this camera module.

Background

At present, binocular stereo cameras are increasingly widely applied to the fields of automatic driving automobiles, robots, unmanned planes, unmanned ships, automatic driving special vehicles and the like. The binocular stereo camera obtains the distance between the front scenery and the camera through self calibration data and parallax measurement of the front scenery, and therefore three-dimensional point cloud of the front scenery is generated. The binocular stereo camera structurally comprises an imaging module (two or more cameras), a control and calculation circuit module, a shell and a structural module. Among them, the housing assembly of the binocular stereo camera is an important component thereof, and therefore, it is desired to provide a housing assembly capable of improving at least one of electrical performance, mechanical performance and heat dissipation performance of a camera module, thereby improving the overall performance of the camera module, which is a problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a shell assembly of camera module to can improve one of electrical property, mechanical properties and the heat dispersion of camera module at least in the hope, thereby improve the comprehensive properties of camera module, this purpose is realized through following technical scheme:

a housing assembly for a camera module, comprising:

the first shell is a metal shell;

the second shell is a metal shell provided with at least one camera mounting hole, the first shell and the second shell are detachably buckled, and the first shell and the second shell enclose an accommodating cavity for accommodating a circuit module;

the heat dissipation structure is arranged on the inner surface, facing the containing cavity, of the first shell and/or the second shell, and/or the heat dissipation structure is arranged on the outer surface, far away from the first shell, of the second shell.

The shell assembly provided by the utility model adopts the metal shell, and the heat dissipation structure is designed on the shell, the heat generated by the heating chip and the electronic device in the working process is transmitted to the shell made of the metal material in time by using the heat dissipation structure, and then the shell is effectively dissipated by utilizing the large-area contact of the shell and the outside air, thereby improving the heat dissipation efficiency and the heat dissipation performance of the shell assembly; meanwhile, compared with other materials, the shell made of metal can better resist deformation caused by external force, and the better heat dissipation performance can minimize the influence of expansion with heat and contraction with cold caused by environmental temperature change, so that the mechanical performance of the shell assembly is improved.

Further, the heat dissipation structure includes a heat dissipation fin disposed on an outer surface of the second housing.

Further, the heat dissipation fins are multiple, and gaps are formed among the heat dissipation fins to form air circulation channels.

Furthermore, the heat dissipation structure comprises a heat dissipation area arranged on the first shell and/or the second shell, and the heat dissipation area is arranged opposite to the position of the heating device on the circuit module.

Further, the heat dissipation area is a bump or a heat dissipation coating.

Further, a step structure is arranged on the circumferential edge of at least one of the first shell and the second shell, and the second shell and the first shell are mutually embedded and fixed through the step structure.

Further, still include the sealing strip, the sealing strip set up in the first casing with the seam department of second casing.

Further, the device also comprises an external interface, wherein the external interface is arranged on the first shell or the second shell;

and/or, still include the maintenance test interface, the maintenance test interface is seted up on first casing or second casing, and with circuit module position corresponds.

The utility model also provides a camera module, including the casing subassembly with install in circuit module in the casing subassembly, the casing subassembly be as above the casing subassembly, just circuit module with the position that the casing subassembly was laminated mutually is provided with the metallic shield layer.

The utility model also provides a vehicle, including the main part, still including loading in the camera module of main part, the camera module be as above the camera module.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:

fig. 1 is a schematic structural diagram of an embodiment of a housing assembly provided in the present invention;

FIG. 2 is a schematic structural view of the housing assembly of FIG. 1 in an assembled state;

FIG. 3 is a component view of a first housing of the housing assembly of FIG. 1;

fig. 4 is a schematic view of the arrangement position of the metal shielding layer.

Description of reference numerals:

1-first shell 2-second shell 3-camera mounting hole 4-radiating fin

5-lug 6-ladder structure 7-external interface 8-maintenance test interface

100-Circuit Module 200-Metal Shielding layer

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a specific embodiment of a housing assembly provided in the present invention; fig. 2 is a schematic view of the housing assembly of fig. 1 in an assembled state.

In a specific implementation mode, the utility model provides a casing subassembly is used for the camera module, and this casing subassembly is split type structure, divide into at least two casings that can dismantle the connection. Specifically, the housing assembly comprises a first housing 1 and a second housing 2, wherein the first housing 1 and the second housing 2 are both metal housings, the second housing 2 is provided with at least one camera mounting hole 3, the first housing 1 and the second housing 2 are detachably fastened, and the first housing 1 and the second housing 2 enclose an accommodating cavity for accommodating the circuit module 100; in the using process, the camera is embedded into the camera mounting hole 3 and is electrically connected with the circuit module 100 in the accommodating cavity.

In the actual assembly process, the required number of cameras (generally two or more) can be directly connected with the inner wall of the second shell 2, the cameras can be fixed on the support, and then the support is connected with the inner wall of the shell component, so that the mechanical performance of the camera module is further improved.

The camera module has a complex use environment, and puts harsh requirements on the performances of the camera module such as power consumption and heating. In order to effectively and quickly dissipate heat of the main heat-generating chip and the electronic device of the circuit module 100, so as to improve the heat dissipation performance of the camera module, the housing assembly further includes a heat dissipation structure, the heat dissipation structure is mounted on the inner surface of the first housing 1 facing the accommodating cavity, or a heat dissipation structure is also arranged on the inner surface of the second housing 2 facing the accommodating cavity, and/or the heat dissipation structure is mounted on the outer surface of the second housing 2 far away from the first housing 1.

Specifically, the heat dissipation structure comprises heat dissipation fins 4 arranged on the outer surface of the second housing 2, and the contact area between the housing assembly and the atmosphere is increased in a fin mode, so that the heat dissipation area is enlarged, and the heat dissipation efficiency is improved.

In order to further improve the heat dissipation efficiency, the heat dissipation fins 4 may be provided in plurality, and a gap is formed between each of the heat dissipation fins 4 to form an air circulation channel, so that heat on the housing assembly is taken away by air flowing between adjacent heat dissipation fins 4, and timely heat dissipation of internal components is realized. The heat radiation fins 4 may be metal fins formed integrally with the second housing 2.

As shown in fig. 3, the heat dissipation structure may further include a heat dissipation area disposed on an inner surface of the first casing 1 and/or the second casing, where the heat dissipation area may be disposed on both the first casing and the second casing, or may be selectively disposed on the first casing or the second casing, the heat dissipation area is disposed opposite to a position where a heat generating device on the circuit module 100 is located, the heat dissipation area may specifically be a bump 5 or a heat dissipation coating, and the heat dissipation area may be multiple and disposed at a proper position on an inner side wall of the first casing 1. When the heat dissipation area is the bump 5, the bumps 5 may have different heights and different areas, and when the camera is assembled, the bumps 5 may contact with the main heat generating chip and the electronic device of the circuit module 100, and the heat on the heat generating element is transferred to the housing by a contact heat conduction manner, so as to dissipate heat through the heat dissipating fins arranged on the housing. When the heat dissipation region is the heat dissipation coating, this heat dissipation coating can be for the heat dissipation silica gel of paining at the contact surface, and the heat dissipation coating can make the heat of the parts that generate heat such as chip, electron device in time transmit the casing subassembly of metal material for, recycles the casing subassembly of metal material and carries out effective heat dissipation with the large tracts of land contact of outside air.

In the above-mentioned embodiment, the utility model provides a housing assembly adopts the metal material casing, and the design has heat radiation structure on the casing, utilizes heat radiation structure to make the heat that generates heat chip, electron device produced at work in time transmit the casing for the metal material, then utilizes the casing to carry out effective heat dissipation with the large tracts of land contact of outside air to the radiating efficiency has been promoted, housing assembly's heat dispersion has been improved.

Meanwhile, after camera calibration is performed, the change of the relative position between the cameras of the binocular stereo camera imaging module may cause the misalignment of the camera ranging result, so the relative position between the cameras is not allowed to change. There are many factors that cause the relative position of the camera to change, for example, the camera is subject to external force, and the environment is changed by high and low temperature. Compared with other materials, the shell made of the metal material can better resist deformation caused by external force, and the better heat dissipation performance can reduce the influence of expansion with heat and contraction with cold caused by environmental temperature change to the minimum, thereby improving the mechanical performance of the shell assembly.

Further, in the above-described embodiment, the circumferential edge of at least one of the first housing 1 and the second housing 2 is provided with the stepped structure 6, and the second housing 2 and the first housing 1 are fixed to each other by the stepped structure 6 in an embedded manner, so that the sealing performance and the mounting reliability between the first housing 1 and the second housing 2 are improved. The detachable connection between the first casing 1 and the second casing 2 may be a bolt connection or a snap connection.

It should be understood that the snap-fit fixing of the first and second housings may take the form of either: firstly, a step structure is arranged on a first shell, and a mounting part at the edge of a second shell is matched and fixed with the step structure; secondly, a step structure is arranged on the second shell, and the mounting part at the edge of the first shell is matched and fixed with the step structure; and thirdly, step structures are arranged on the first shell and the second shell, and the two shells are matched and fixed by utilizing the matching of the two step structures.

As shown in fig. 2, the housing assembly is further provided with an external interface 7, the external interface 7 may be, for example, a source interface, a data interaction interface, a signal synchronization interface, and the like, the external interface 7 is provided on the first housing 1 or the second housing 2, so as to be provided between the two housings, that is, a part of the external interface 7 is provided on the first housing 1, and another part is provided on the second housing 2.

Still seted up on this casing subassembly and overhauld test interface 8, overhaul test interface 8 set up in on first casing 1 or the second casing 2, and with circuit module 100 position is corresponding for as the interface of overhauing and testing circuit module 100 to the camera module group, in order to make things convenient for the camera module group equipment to accomplish the back, overhauls and tests internal circuit.

In the contact gap between the accommodating cavity of the shell assembly and the outside air, according to the requirements of actual use scenes, dustproof, waterproof and anticorrosive sealing strips, sealing rings or stepped sealing structures and the like can be added, so that the dustproof, waterproof and anticorrosive performances of the binocular stereo camera are improved.

In addition to the above housing assembly, the present invention further provides a camera module comprising the above housing assembly, wherein the camera module comprises a housing assembly and a circuit module 100 installed in the housing assembly, the housing assembly is the above housing assembly, and the circuit module 100 and the position where the housing assembly is attached to each other are provided with a metal shielding layer 200.

As shown in fig. 4, in the camera module based on the metal housing assembly, a metal plating layer is designed on the outermost periphery or other areas of the circuit module 100, and the metal plating layer forms a metal shielding layer 200. The metal plated surface and the circuit board of the circuit module 100 realize a good common ground design. The shell assembly is in contact with the surface of the metal coating during assembly, so that the shell assembly becomes a good shielding cavity similar to a Faraday cage, and thus, the electromagnetic radiation inside the shell assembly is effectively inhibited, and the performance requirement of external interference resistance is improved.

In addition, the metal shell assembly increases the overall ground plane of the circuit module 100, and provides a good conductor plane when encountering external electrostatic pulse interference, thereby providing a discharge path for electrostatic charges, effectively protecting an internal circuit and improving the electrostatic protection effect. The shell component made of metal realizes the increase of the grounding area, effectively reduces the loop impedance, and reduces the skin effect, thereby further improving the comprehensive electrical performance of the camera module.

In addition to the above camera module, the present invention also provides a vehicle including the camera module, wherein the vehicle includes a main body portion and a camera module mounted on the main body portion, and the vehicle can be various vehicles or aircrafts.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A housing assembly for a camera module, comprising:

the first shell (1), the first shell (1) is a metal shell;

the camera comprises a second shell (2), wherein the second shell (2) is a metal shell provided with at least one camera mounting hole (3), the first shell (1) and the second shell (2) are detachably buckled, and the first shell (1) and the second shell (2) enclose an accommodating cavity for accommodating a circuit module (100);

the heat dissipation structure is arranged on the inner surface, facing the containing cavity, of the first shell (1) and/or the second shell, and/or the heat dissipation structure is arranged on the outer surface, far away from the first shell (1), of the second shell (2).

2. The housing assembly according to claim 1, characterized in that the heat dissipation structure comprises heat dissipation fins (4) provided on an outer surface of the second housing (2).

3. The housing assembly according to claim 2, wherein the heat dissipating fins (4) are plural, and gaps are provided between the heat dissipating fins (4) to form air circulation passages.

4. The housing assembly according to claim 1, characterized in that the heat dissipation structure comprises a heat dissipation area provided to the first housing (1) and/or the second housing (2), the heat dissipation area being located opposite to a location of a heat generating device on the circuit module (100).

5. The housing assembly according to claim 4, characterized in that the heat dissipation area is a bump (5) or a heat dissipation coating.

6. The housing assembly according to any of claims 1 to 5, characterized in that a circumferential edge of at least one of the first housing (1) and the second housing is provided with a step structure (6), and the second housing (2) and the first housing (1) are fixed to each other by the step structure (6) in an embedded manner.

7. The housing assembly according to claim 6, further comprising a sealing strip provided at a seam of the first housing (1) and the second housing (2).

8. The housing assembly according to any of the claims 1 to 5, further comprising an external interface (7), the external interface (7) opening onto the first housing (1) or the second housing (2);

and/or, still include maintenance test interface (8), maintenance test interface (8) set up in on first casing (1) or the second casing, and with circuit module (100) position corresponds.

9. A camera module comprising a housing assembly and a circuit module (100) mounted in the housing assembly, wherein the housing assembly is the housing assembly according to any one of claims 1 to 8, and a metal shielding layer (200) is disposed at a position where the circuit module (100) is attached to the housing assembly.

10. A vehicle comprising a body portion, and further comprising a camera module mounted to the body portion, the camera module being as claimed in claim 9.

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