High-integration depth camera structure
By designing a high-integrated depth camera structure, the problem of camera imaging function being affected by strong light, fuzzy light, vibration and large temperature difference in the lunar environment is solved, and the camera's stable imaging in the lunar environment is achieved.
Patent Information
- Application Number
- CN202411790537.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-03-07
AI Technical Summary
During deep space exploration, the depth camera of the tiny robot on the lunar surface is difficult to maintain normal imaging functions in the lunar thermal environment with strong light environment, scattered light interference, moon dust landing, random vibration, impact mechanical environment and large temperature difference.
A high-integrated depth camera structure is designed, including a main support structure, a lens, an electronic component, a first housing and a second housing. The lens is installed on the main support structure. The electronic component is installed in the heat dissipation space between the second housing and the main support structure. A heat dissipation structure is provided to reduce heat accumulation, and a light interference is reduced through an integrated light shield and a moon dust protection window.
This camera structure can effectively reduce lens vibration in the lunar environment, reduce the impact of temperature difference on the camera's interior, and ensure that the camera maintains a stable imaging function in a high-temperature and large temperature difference environment through heat dissipation structure and light-shading design.
Smart Images
Figure CN119583937A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of deep space exploration technology, and in particular to a highly integrated depth camera structure. Background Art
[0002] Deep space exploration is an important direction for the future development of aerospace, and lunar exploration and manned lunar landing are major projects for my country in the next few years. Compared with industrial cameras and commercial cameras, the depth camera used for the lunar micro-robot faces the strong light environment on the lunar surface and the interference of stray light from the lunar probe and the lunar surface; it is necessary to maintain the normal imaging function of the camera in the environment of lunar dust landing; it needs to experience the mechanical environment of random vibration and impact in the launch stage, and at the same time, it needs to experience the thermal environment of the lunar surface during the working process. The thermal environment of the lunar surface has a large temperature difference, with a higher maximum temperature and a lower minimum temperature. Summary of the invention
[0003] The embodiment of the present invention provides a highly integrated depth camera structure that can adapt to the lunar environment with large temperature differences and large impact forces.
[0004] The embodiment of the present invention provides a highly integrated depth camera structure, which is applied to the lunar environment, and includes a main support structure, a lens, electronic components, a first shell and a second shell;
[0005] The main support structure is mounted on the port of the second shell, the electronic components are mounted in the heat dissipation space between the second shell and the main support structure, the lens is mounted on the main support structure, the first shell includes an anti-moon dust protection window, the first shell is arranged on a side of the main support structure away from the second shell, the lens is buckled inside, the lens faces the anti-moon dust protection window, the second shell is provided with a plurality of mounting interfaces, the mounting interfaces are used to connect the second shell to a camera carrier, and the mounting interfaces are arranged near the lens;
[0006] A heat dissipation structure is arranged in the heat dissipation space.
[0007] In a possible design, it also includes an integrated light-shielding hood, which is provided with a light-shielding channel matching the lens, and the integrated light-shielding hood buckles the lens so that the optical element at one end of the lens passes through the light-shielding channel, and the light-shielding channel is provided with a bell-mouth at one end away from the main supporting structure, and a first light-blocking ring is provided on the bell-mouth, and a second light-blocking ring is provided at the end of the light-shielding channel where the bell-mouth is not provided, and the second light-blocking ring is attached to the side of the optical element.
[0008] In a possible design, the integrated sunshade is coated with an absorption layer to absorb stray light.
[0009] In one possible design, the outer side of the anti-lunar dust protection window is coated with a lunar dust protection coating.
[0010] In a possible design, a reference mirror is further included, and the reference mirror is installed on the second shell at a position close to the mounting interface.
[0011] In one possible design, the mounting interface is a mounting ear.
[0012] In a possible design, a binocular camera detector is provided at the bottom of the lens, and the binocular camera detector and the lens are mounted on the main supporting structure.
[0013] In a possible design, the heat dissipation structure includes a plurality of heat-conducting bosses arranged inside the second shell, and the electronic components are respectively mounted on different heat-conducting bosses.
[0014] In a possible design, the heat dissipation structure includes a radiation heat dissipation layer coated inside the second shell for dissipating heat by radiation.
[0015] In a possible design, the first shell and the second shell are connected to the main supporting structure via screws, respectively, and connecting gaps between the first shell, the second shell and the main supporting structure are filled with silicone rubber.
[0016] Compared with the prior art, the present invention has at least the following beneficial effects:
[0017] In this embodiment, all lenses are mounted on the main support structure, which is more stable. The camera as a whole is mounted on the camera carrier through the mounting interface. In order to reduce the vibration at the lens, the mounting interface is set at a position close to the lens, and the mounting interface is more stable. Therefore, the vibration at the lens close to the mounting interface is effectively reduced, and the baseline of the binocular camera is more stable. The lens and electronic components are installed in the space formed by the first shell and the second shell. The space is relatively closed, and the temperature difference of the lunar environment has little effect on the inside of the camera. Furthermore, the electronic components will generate heat when working, and the closed space is not conducive to heat dissipation. Therefore, a heat dissipation structure is set in the heat dissipation space where the electronic components are installed to dissipate heat. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1is a schematic diagram of a highly integrated depth camera structure provided by an embodiment of the present invention;
[0020] Figure 2 is a schematic diagram of another highly integrated depth camera structure provided by an embodiment of the present invention;
[0021] Figure 3 is a schematic diagram of another highly integrated depth camera structure provided by an embodiment of the present invention;
[0022] Figure 4 It is a schematic diagram of a light-shielding channel structure provided by an embodiment of the present invention;
[0023] Figure 5 A schematic diagram of the internal structure of a second shell provided by an embodiment of the present invention;
[0024] Figure 6 A schematic diagram of a screw and glue injection connection structure provided in an embodiment of the present invention.
[0025] In the figure:
[0026] 1-main support structure; 11-integrated sunshade; 111-first light blocking ring; 112-second light blocking ring; 2-lens; 21-optical element; 3-first shell; 31-moon dust protection window; 4-second shell; 5-mounting interface; 6-reference mirror; 7-thermal conductive boss; 8-radiative heat dissipation layer; 9-screw; 10-silicone rubber. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0028] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more; the terms "connected" and "fixed" should be understood in a broad sense, for example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0029] In the description of this specification, it should be understood that the directional words such as "upper" and "lower" described in the embodiments of the present invention are described at the angles shown in the drawings and should not be understood as limiting the embodiments of the present invention. In addition, in the context, it should also be understood that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.
[0030] like Figures 1 to 3 As shown, an embodiment of the present invention provides a highly integrated depth camera structure, which is applied to the lunar environment, including a main support structure 1, a lens 2, electronic components, a first shell 3 and a second shell 4;
[0031] The main support structure 1 is installed at the port of the second housing 4, the electronic components are installed in the heat dissipation space between the second housing 4 and the main support structure 1, the lens 2 is installed on the main support structure 1, the first housing 3 includes an anti-moon dust protection window 31, the first housing 3 is arranged on the side of the main support structure 1 away from the second housing 4, the lens 2 is buckled inside, the lens 2 faces the anti-moon dust protection window 31, the second housing 4 is provided with a plurality of mounting interfaces 5, the mounting interfaces 5 are used to connect the second housing 4 with the camera carrier, and the mounting interfaces 5 are arranged at a position close to the lens 2;
[0032] A heat dissipation structure is arranged in the heat dissipation space.
[0033] In this embodiment, all lenses 2 are mounted on the main support structure 1, which is more stable. The camera as a whole is mounted on the camera carrier through the mounting interface 5. In order to reduce the vibration at the lens 2, the mounting interface 5 is set at a position close to the lens 2, and the mounting interface 5 is more stable. Therefore, the vibration at the lens 2 close to the mounting interface 5 is effectively reduced. The lens 2 and the electronic components are installed in the space formed by the first shell 3 and the second shell 4. The space is relatively closed, and the temperature difference of the lunar environment has little effect on the inside of the camera. Furthermore, the electronic components will generate heat when working, and the closed space is not conducive to heat dissipation. Therefore, a heat dissipation structure is set in the heat dissipation space where the electronic components are installed to dissipate heat.
[0034] Please refer to Figure 3 and Figure 4 In some embodiments of the present invention, an integrated sunshade 11 is further included. The integrated sunshade 11 is provided with a sunshade channel matching the lens 2. The integrated sunshade 11 buckles the lens 2 so that the optical element 21 at one end of the lens 2 passes through the sunshade channel. A bell mouth is provided at one end of the sunshade channel away from the main supporting structure 1, and a first light-blocking ring 111 is provided on the bell mouth. A second light-blocking ring 112 is provided at the end of the sunshade channel where the bell mouth is not provided, and the second light-blocking ring 112 is attached to the side of the optical element 21.
[0035] In this embodiment, the integrated light shield 11 blocks most of the non-target stray light, and at the same time, the light shielding channel can allow the target light to enter the lens 2. Furthermore, the first light shielding ring 111 can prevent the influence of external stray light, and also prevent the mutual interference of the light of several lenses 2 caused by the reflection of the protection window; the second light shielding ring 112 can prevent the stray light generated by the structure, circuit board, and components around the lens 2 from affecting the lens 2, and prevent weak light from entering the field of view of the lens 2.
[0036] In some embodiments of the present invention, the integrated light shield 11 is coated with an absorption layer to absorb stray light.
[0037] In this embodiment, the surface of the integrated sunshade 11 may be sprayed with black paint with a high absorption ratio to prevent the interference of stray light from the lunar surface and the lunar probe on the camera and the mutual interference of the lens 2 .
[0038] In some embodiments of the present invention, the anti-lunar dust protection window 31 is coated with a lunar dust protection coating.
[0039] In this embodiment, in order to prevent the anti-lunar dust protection window 31 from being blocked by lunar dust, a lunar dust protection coating is applied to the anti-lunar dust protection window 31 .
[0040] In some embodiments of the present invention, a reference mirror 6 is further included, and the reference mirror 6 is installed on the second housing 4 at a position close to the mounting interface 5. The reference mirror 6, which is also made of glass, also needs to be installed near the stable mounting interface 5.
[0041] In some embodiments of the present invention, the mounting interface 5 is a mounting ear.
[0042] In some embodiments of the present invention, a binocular camera detector is provided at the bottom of the lens 2 , and the binocular camera detector and the lens 2 are mounted on the main supporting structure 1 .
[0043] In this embodiment, in order to ensure the stability of the binocular camera baseline, the binocular camera detector and the lens 2 are installed on the same structure.
[0044] Please refer to Figure 5 In some embodiments of the present invention, the heat dissipation structure includes arranging a plurality of heat-conducting bosses 7 inside the second housing 4 , and the electronic components are respectively mounted on different heat-conducting bosses 7 .
[0045] In order to dissipate heat, the heat dissipation surface of the lunar camera should be as large as possible, and the flatness requirement should be as small as possible, for example, less than 0.1mm; a heat-conducting boss 7 is designed on the inner side of the second shell 4 to dissipate heat for the most powerful electronic components on the circuit board, and a heat-conducting pad is added between the boss and the components. The installation surface area of the second shell 4 and the main support structure 1 should be as large as possible within the allowable range.
[0046] In some embodiments of the present invention, the heat dissipation structure includes a radiation heat dissipation layer 8 coated inside the second housing 4 for heat dissipation by radiation. Specifically, black paint can be sprayed on the inside of the second housing 4 for heat dissipation by radiation from the circuit board.
[0047] Please refer to Figure 6 In some embodiments of the present invention, the first shell 3 and the second shell 4 are connected to the main support structure 1 by screws 9 respectively, and the connection gaps between the first shell 3, the second shell 4 and the main support structure 1 are filled with silicone rubber 10.
[0048] Specifically, after the fastening screws 9 of the second housing 4 and the main support structure 1 are tightened, the optical structural glue can be used to seal the side of the installation surface, and the amount of glue can be controlled so that the glue flows into the gap along the installation surface.
[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A highly integrated depth camera structure, characterized in that: Applicable to the lunar environment, including a main support structure, a lens, electronic components, a first shell and a second shell; The main support structure is mounted on the port of the second shell, the electronic components are mounted in the heat dissipation space between the second shell and the main support structure, the lens is mounted on the main support structure, the first shell includes an anti-moon dust protection window, the first shell is arranged on a side of the main support structure away from the second shell, the lens is buckled inside, the lens faces the anti-moon dust protection window, the second shell is provided with a plurality of mounting interfaces, the mounting interfaces are used to connect the second shell to a camera carrier, and the mounting interfaces are arranged near the lens; A heat dissipation structure is arranged in the heat dissipation space.
2. The highly integrated depth camera according to claim 1, characterized in that: It also includes an integrated light-shielding hood, which is provided with a light-shielding channel matching the lens, and the integrated light-shielding hood buckles the lens so that the optical element at one end of the lens passes through the light-shielding channel, and the light-shielding channel is provided with a bell mouth at one end away from the main supporting structure, and a first light-blocking ring is provided on the bell mouth, and a second light-blocking ring is provided at the end of the light-shielding channel that is not provided with the bell mouth, and the second light-blocking ring is attached to the side of the optical element.
3. The highly integrated depth camera according to claim 2, characterized in that: The integrated sunshade is coated with an absorption layer to absorb stray light.
4. The highly integrated depth camera according to claim 1, characterized in that: The outer side of the anti-moon dust protection window is coated with a moon dust protection coating.
5. The highly integrated depth camera according to claim 1, characterized in that: It also includes a reference mirror, which is installed on the second shell at a position close to the installation interface.
6. The highly integrated depth camera according to claim 1, characterized in that: The mounting interface is a mounting ear.
7. The highly integrated depth camera according to claim 1, characterized in that: A binocular camera detector is arranged at the bottom of the lens, and the binocular camera detector and the lens are installed on the main supporting structure.
8. The highly integrated depth camera according to claim 1, characterized in that: The heat dissipation structure includes a plurality of heat-conducting bosses arranged inside the second shell, and the electronic components are respectively mounted on different heat-conducting bosses.
9. The highly integrated depth camera according to claim 1, characterized in that: The heat dissipation structure includes a radiation heat dissipation layer coated inside the second shell body for dissipating heat by radiation.
10. The highly integrated depth camera according to claim 1, characterized in that: The first shell and the second shell are connected to the main supporting structure via screws respectively, and the connecting gaps between the first shell, the second shell and the main supporting structure are filled with silicone rubber.