Explosion-proof, burning-proof and waterproof reinforced audio and video recording device
By designing explosion-proof, burn-proof and waterproof reinforced structures on the audio-visual camera, combined with thermal management technology, the safety problems of the audio-visual camera in harsh environments are solved, and the reliability and data integrity of long-term work are achieved.
Patent Information
- Application Number
- CN202422025906.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-21
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-21
AI Technical Summary
When existing audio and video cameras work for a long time in harsh and dangerous environments, they face internal and external safety problems and cannot effectively protect their adaptability to the environment and data integrity.
An explosion-proof, burn-proof and waterproof reinforced audio-visual recording device is designed to ensure the reliability and safety of the device in harsh environments through the combination of a watertight movement, a waterproof reinforcement layer, a fire-proof thermal reinforcement layer, an explosion-proof reinforcement layer and a thermal management reinforcement mechanism.
It effectively solves the internal and external safety problems of audio and video recorders in harsh environments, ensuring the reliability of long-term work and data integrity.
Smart Images
Figure CN222967026U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of instrument protection, and specifically relates to an explosion-proof, fire-proof and waterproof reinforced audio-video recording device. Background Art
[0002] Audio-video acquisition and recording are widely used in many fields, such as driving recorders, security monitoring, cameras, black boxes, etc. During the missile strike on the sea simulated target damage assessment test, it is necessary to carry an audio-video acquisition and storage device on the target ship to record the scene of the weapon damaging the target ship. Therefore, it is required that the audio-video recording device has high environmental adaptability and survival ability (explosion-proof, fire-proof, waterproof reinforced design) to ensure long-term reliable recording and the integrity of the stored data. Even if the target ship sinks during the test, the information data stored inside the audio-video recording device cannot be lost. Conventional audio-video recorders (such as driving recorders) do not have the conditions for long-term outdoor use, do not have explosion-proof, fire-proof, waterproof and other reinforced designs, and cannot adapt to special use environments and dangerous scenarios. Content of the Utility Model
[0003] The purpose of the utility model is to provide an explosion-proof, fire-proof and waterproof reinforced audio-video recording device, which solves the internal and external safety problems faced by the audio-video recorder during long-term operation in harsh and dangerous environments through reinforcement and thermal management technologies.
[0004] To achieve the above purpose, the utility model provides the following technical solutions:
[0005] The explosion-proof, fire-proof and waterproof reinforced audio-video recording device of the utility model includes a waterproof core module. The outside of the waterproof core module is sequentially coated with a waterproof reinforcement layer, a fireproof and heat-insulating reinforcement layer, and an explosion-proof reinforcement layer; a thermal management reinforcement mechanism for heat dissipation is also arranged between the waterproof core module and the explosion-proof reinforcement layer; the waterproof core module includes a main board, and the main board is respectively connected with a camera module and an electrical connector; the waterproof reinforcement layer includes a core module housing integrally formed on five sides and a core module cover plate on the bottom surface. One side of the core module housing is connected with a camera module sealing cylinder; the camera module is arranged inside the camera module sealing cylinder, and a flexible flat cable passing through the slit of the core module housing is connected between the camera module and the main board of the waterproof core module; the electrical connector passes through the core module housing to perform data interaction with an external unit; the fireproof and heat-insulating reinforcement layer is composed of a silicon aluminum plate and fireproof and heat-insulating cotton, and is combined and wrapped outside the waterproof core module in the form of building block assembly; the thermal management reinforcement mechanism includes a heat equalizing mechanism respectively arranged inside the waterproof reinforcement layer and a TEC heat pump outside the waterproof reinforcement layer.
[0006] In the above-mentioned reinforced audio-video recording device, a dust and waterproof groove is arranged on the inner side of the core module cover plate, and an oil-coated sealing rubber ring is embedded, which is matched and fixed with the dust and waterproof boss on the mounting surface of the core module housing.
[0007] In the above-mentioned reinforced audio and video recording device, a glass window is installed at the front end of the camera module sealing cylinder, and a dust and waterproof groove is provided at the rear end. An oil-coated sealing rubber ring is installed in the dust and waterproof groove, and the rubber ring is slightly higher than the installation surface, and is fixed through the cooperation of the installation surface of the movement housing and the installation surface of the camera module sealing cylinder.
[0008] In the above-mentioned reinforced audio and video recording device, the front end of the camera module sealing cylinder is sealed with high-temperature and high-strength glass, and a ceramic heat insulation ring is sleeved outside the camera module sealing cylinder.
[0009] In the above-mentioned reinforced audio and video recording device, the explosion-proof reinforcement layer includes an explosion-proof housing integrated with five sides, and an explosion-proof upper cover is provided at the top; a shock isolation lining is also provided between the explosion-proof reinforcement layer and the fire and heat insulation reinforcement layer, and the shock isolation lining is connected to the bottom plate of the explosion-proof housing through rubber damping shock isolators at multiple points; the electrical connector passes through the fire and heat insulation reinforcement layer and the explosion-proof housing to interact with the outside world, and a quick-release side cover is also provided at the outer end of the electrical connector passing through the explosion-proof housing.
[0010] In the above-mentioned reinforced audio and video recording device, the heat equalizing mechanism includes a main chip heat conduction block and a heat equalizing fan; heat collecting fins are arranged around the main chip heat conduction block; the main chip heat conduction block is used to extract the heat of the waterproof movement main board chip and quickly transfer it to the heat collecting fins. The TEC heat pump includes a TEC cooler, heat pump fins and a heat pump fan arranged successively from bottom to top; the TEC cooler is arranged on the outer surface of the top of the movement housing, and the heat pump fan communicates with the outside world.
[0011] In the above-mentioned reinforced audio and video recording device, an installation bracket is also included, and the installation bracket is used for fixed erection, adjusting the azimuth and pitch angles.
[0012] In the above-mentioned reinforced audio and video recording device, a supplementary light module is also included to take into account the use in all-day and all-night periods.
[0013] The beneficial effects of the present utility model are:
[0014] Through thermal design, structural reinforcement and thermal management technology, the present utility model can effectively solve the heat accumulation brought by video recording and processing work, improve the long-term working reliability of the system, and rely on its own waterproof, fireproof and explosion-proof designs to solve the internal and external safety problems faced by the audio and video recorder during long-term work in harsh and dangerous environments. Description of the Drawings
[0015] Figure 1 It is a schematic diagram of the movement structure of the present utility model;
[0016] Figure 2 It is a schematic diagram of the sealing structure of the camera module of the present utility model;
[0017] Figure 3 It is a schematic diagram of the assembled structure of the fire and heat insulation reinforcement layer of the present utility model;
[0018] Figure 4 Structural schematic diagram of the fireproof and heat-insulating reinforcement layer assembly of the present utility model;
[0019] Figure 5 Structural schematic diagram of the explosion-proof reinforcement layer assembly of the present utility model;
[0020] Figure 6 Structural schematic diagram of the explosion-proof reinforcement layer assembly of the present utility model;
[0021] Figure 7 Structural schematic diagram of the integrated heat sink of the present utility model;
[0022] Figure 8 Structural schematic diagram of the internal heat equalization structure of the present utility model;
[0023] Figure 9 Structural schematic diagram of the TEC heat pump of the present utility model.
[0024] In the figure: 1 - watertight movement; 101 - camera module; 102 - electrical connector; 2 - waterproof reinforcement layer; 201 - movement housing; 202 - movement cover plate; 203 - camera module sealing cylinder; 204 - sealing rubber ring; 3 - fireproof and heat-insulating reinforcement layer; 4 - explosion-proof reinforcement layer; 401 - explosion-proof upper cover; 403 - shock isolation lining; 404 - quick-release side cover; 405 - explosion-proof housing; 5 - heat management reinforcement mechanism; 501 - main chip heat conduction block; 502 - heat equalizing fan; 503 - heat collecting fins; 504 - TEC cooler, 505 - heat pump fins, 506 - heat pump fan. Specific embodiments
[0025] Refer to Figures 1 to 9 , the present utility model includes a watertight movement 1, and the outside of the watertight movement 1 is sequentially coated with a waterproof reinforcement layer 2, a fireproof and heat-insulating reinforcement layer 3, and an explosion-proof reinforcement layer 4; a heat management reinforcement mechanism 5 for heat dissipation is further arranged between the watertight movement 1 and the explosion-proof reinforcement layer 4; the watertight movement 1 includes a main board, and the main board is respectively connected with a camera module 101 and an electrical connector 102; the waterproof reinforcement layer 2 includes a movement housing 201 integrally formed on five sides and a movement cover plate 202 on the bottom surface, and a camera module sealing cylinder 203 is connected to one side surface of the movement housing 201; the camera module 101 is arranged inside the camera module sealing cylinder 203, and a flexible flat cable passing through the slit of the movement housing 201 is connected between the camera module 101 and the main board of the watertight movement 1; the electrical connector 102 passes through the movement housing 201 to perform data interaction with an external transmission unit, etc.; the fireproof and heat-insulating reinforcement layer 3 is composed of a silicate aluminum plate and fireproof and heat-insulating cotton, and is combined and wrapped outside the watertight movement 1 in a building block assembly form; the heat management reinforcement mechanism 5 includes a heat equalizing mechanism arranged inside the waterproof reinforcement layer 2 and a TEC heat pump arranged outside the waterproof reinforcement layer 2.
[0026] Inside the inner side of the movement cover plate 202, there is a dust and waterproof groove, in which an oil-coated sealing rubber ring is embedded and is fixed in cooperation with the dust and waterproof boss on the mounting surface of the movement housing 201.
[0027] As Figure 2 shown, at the front end of the camera module sealing cylinder 203, a glass window is installed, and at the rear end, there is a dust and waterproof groove. An oil-coated sealing rubber ring 204 is installed in the dust and waterproof groove. The rubber ring 204 is slightly higher than the mounting surface and is fixed through the cooperation of the mounting surface of the movement housing 201 and the mounting surface of the camera module sealing cylinder 203.
[0028] The front end of the camera module sealing cylinder 203 is sealed with high-temperature and high-strength glass, and a ceramic heat insulation ring is sleeved outside the camera module sealing cylinder 203.
[0029] As Figure 5 and Figure 6 shown, the explosion-proof reinforcement layer 4 includes an explosion-proof housing 405 integrated in five sides, and an explosion-proof upper cover 401 is provided at the top; a shock isolation lining plate 403 is also provided between the explosion-proof reinforcement layer 4 and the fire and heat insulation reinforcement layer 3. The shock isolation lining plate 403 is reliably connected to the bottom plate of the explosion-proof housing 405 at multiple points through rubber damping shock isolators; the electrical connector 102 passes through the fire and heat insulation reinforcement layer 3 and the explosion-proof housing 405 to interact with the outside world. A quick-release side cover 404 is also provided at the outer end of the electrical connector 102 passing through the explosion-proof housing 405.
[0030] As Figures 7 to 9 shown, the heat equalizing mechanism includes a main chip heat conducting block 501 and a heat equalizing fan 502; the main chip heat conducting block 501 is made of an aluminum block, and heat collecting fins 503 are arranged around it; a heat conducting silicone grease is coated on the surface of the main chip heat conducting block 501 and the main chip. The main chip heat conducting block 501 is used to transfer the heat of the motherboard chip of the waterproof movement 1 to the heat collecting fins 503. The TEC heat pump includes a TEC cooler 504, a heat pump fin 505, and a heat pump fan 506 arranged in sequence from bottom to top; the TEC cooler 504 is arranged on the outer surface of the top of the movement housing 201, and the heat pump fan 506 communicates with the outside world. The waterproof movement 1 adopts an integrated dust and waterproof design. The movement housing 201 and the cover plate 202 are formed by CNC precision machining. The dust and waterproof electrical connector 102 is used as the electrical interface, and the necessary holes and gaps are sealed.
[0031] A dust and waterproof groove is designed on the inner side of the movement cover plate 202, and an oil-coated sealing rubber ring is embedded. It is cooperated and extruded with the dust and waterproof boss on the mounting surface of the movement housing 201 to achieve large-area dust and waterproof.
[0032] The four threaded holes on the movement housing 201 for installing the movement cover plate 202 and the four threaded holes for installing the camera module sealing cylinder 203 are all blind holes and are designed on the outside of the dust-proof and waterproof bosses and grooves. The installation threaded holes for the back cable buckle and the heat dissipation system are also blind holes.
[0033] A glass window is installed at the front end of the camera module sealing cylinder 203 and is sealed with 704 silicone rubber. A dust-proof and waterproof groove is designed inside the camera module sealing cylinder 203. After installing the oil-coated sealing rubber ring 204, the rubber ring 204 is slightly higher than the installation surface. Through the cooperation and extrusion of the installation surface of the movement housing 201 and the installation surface of the camera module sealing cylinder 203, the dust-proof and waterproof of the camera module 101 is achieved.
[0034] The waterproof movement is responsible for tasks such as high-speed audio and video acquisition, OSD character overlay, image processing, low-latency encoding, high-speed storage, and video output push. The camera module, microcomputer, environmental control system, uninterruptible power supply system, and Beidou / GPS module are integrated into the waterproof movement. The systems adopt a high-speed data tightly coupled design to reduce the volume of the movement. Inside the waterproof movement 1, a camera module 101, a system main control and storage unit, a heat dissipation component, a power supply component, and a video communication component are installed, and they are uniformly interacted with the outside through the dust-proof and waterproof electrical connector 102 on the side panel.
[0035] After the waterproof movement 1 is assembled and adjusted, silicone rubber needs to be used to fully seal the through-wall holes and gaps. The main function is to provide dust-proof and waterproof sealing. When the device is exposed to dust or soaked in water, the storage unit will not be damaged due to the rapid ingress of dust and water into the movement. The main waterproof component has a dust-proof and waterproof rating of IP68.
[0036] The above-mentioned gaps outside the movement housing 201, including the slit for the flexible cable of the camera module 101, need to be sealed with a small amount of 704 silicone rubber.
[0037] As Figure 3 and 4 shown, the fireproof and heat-insulating reinforcement layer 3 is composed of a silicon-aluminum plate and fireproof and heat-insulating cotton, and is assembled in a building block form to wrap around the outside of the waterproof movement 1. The silicon-aluminum plate has the characteristics of low heat capacity and heat conduction, a fire resistance temperature of 1000 °C, and isolates temperature transfer. The outermost layer of the camera module sealing cylinder (203) is sealed with high-temperature-resistant glass, and a ceramic heat-insulating ring is sleeved outside the camera module sealing cylinder (203) to protect the internal camera module 101. Therefore, when the high-speed audio and video recorder is in a fire scene, the external high temperature will not be conducted to the waterproof movement 1 and the camera module 101 through direct heat transfer, effectively reducing the probability of failures of the internal devices and components of the waterproof movement 1 and irreparable burning of the storage unit.
[0038] The fireproof and heat-insulating reinforcement layer 3 of the waterproof movement 1 is composed of six parts of aluminum silicate plates on the top, bottom, left, right, front, and rear. Among them, the thickness of the front aluminum silicate plate is 20mm, and the thickness of the remaining aluminum silicate plates is 30mm. According to the installation and fixation requirements of the peripheral modules, the shape is customized to ensure the tightness of the package.
[0039] For the fireproof reinforcement design of the camera module 101, since the optical window of the camera module 101 cannot be reinforced by wrapping and blocking, a 10mm thick high-temperature resistant and high-strength glass window is used for protection and reinforcement. The camera module sealing cylinder 203 is a metal part, and the method of covering with a high-temperature resistant ceramic heat-insulating layer is adopted to reduce heat transfer, and it is nested with the relevant front aluminum silicate plate to form a relatively complete fireproof and heat-insulating reinforcement layer.
[0040] As Figure 5 and 6 shown, the explosion-proof shell of the explosion-proof reinforcement layer 4 is processed by casting technology and formed in one processing by a mold, with good overall strength and rigidity, mainly used to prevent damage from explosion fragments. The design of the explosion-proof reinforcement layer 4 is mainly achieved through three means: speed reduction, energy absorption, and shock isolation. This overlapping explosion-proof reinforcement design effectively improves the overall anti-impact ability of the system. First of all, the wall thickness of the explosion-proof shell 405 is about 4mm, and it is made of homogeneous cast aluminum material. Its main function is to prevent the puncture damage caused by the impact of explosion fragments. When the equipment is affected by explosion and impact, the hit part of the explosion-proof shell 405 will be dented and cracked, thus greatly reducing the speed of the fragments, absorbing and offsetting the single-point damage caused by the fragment collision impact, and reducing the risk of penetration and movement damage. Secondly, the inner side of the explosion-proof shell 405 is closely attached to the overlapping sandwich formed by the buoyancy bricks and the fireproof and heat-insulating aluminum silicate plates, which has a good surface buffering effect and further diffuses and absorbs the impact influence brought by the external kinetic energy. Finally, the system adopts a wrapped and compact reinforcement design, effectively increasing the natural frequency of the system, reducing the fatigue effect caused by resonance, and making the internal operating environment of the system relatively stable. All components inside the explosion-proof shell are installed on the shock isolation lining plate 403 and are reliably connected to the bottom plate of the explosion-proof cast aluminum shell through rubber damping shock isolators, so as to isolate or dissipate the vibration energy, avoid or reduce the transmission of explosion shock energy to the core structure of the system, and thus reduce the structural vibration response.
[0041] As Figures 7 to 9 shown, the implementation method of the thermal management reinforcement mechanism 5 design: The movement housing 201 is processed by CNC to form an integrated heat sink, and is provided with a main chip heat conduction block 501 to realize the heat extraction and rapid conduction of the high heat generation points of the core chips, so that the core chips can stably maintain the normal working main frequency.
[0042] The heat generation inside the movement mainly comes from the board chips and the power lithium battery. By rotating the micro heat pipe fan 502 inside the movement, a high-speed internal circulation air flow is generated, which transfers the heat generated and accumulated by the suspended circuit board and the power lithium battery and not fully transferred to the housing. The heat is fully exchanged on the internal heat accumulation fins 503 through the circulating air flow to achieve rapid homogenization, providing a stable and balanced environment for the long-term operation of the core components.
[0043] The externally installed TEC heat pump is designed based on the principle that heat is transferred from low temperature to high temperature and hot air flows from bottom to top. It mainly consists of a TEC cooler 504 closely attached to the outside of the heat sink at the hot spot of the movement housing, heat pump fins 505, a heat pump fan 506, and a silicone grease auxiliary material with good heat transfer. When working normally, the heat points inside the waterproof movement 1 will gather at the heat sink below the TEC cooler 504. When the internal temperature sensor of the waterproof movement 1 determines that the set temperature threshold is reached, the TEC cooler 504 is activated, and a cold end will quickly form on its lower surface. Due to the large temperature difference, the heat carried by the housing heat sink will quickly transfer upward. At the same time, the internal energy of the upper surface of the TEC heat pump chip increases due to the recombination of electron-hole pairs, and the temperature rises, forming a hot end. The heat accumulated at the hot end greatly increases the heat dissipation area through the heat pump fins 505, and the heat pump fan 506 discharges the air flow from bottom to top. The outside cold air first enters through the holes below the explosion-proof housing and then is discharged to the outside through the heat dissipation window at the top of the explosion-proof housing, thus achieving the full-automatic heat regulation effect of the system.
[0044] In addition, the present utility model can also be provided with a mounting bracket, which is used for the fixed installation of the video recording host and has the functions of azimuth and pitch adjustment. The angle can be manually adjusted according to needs to align with the video recording target. A supplementary light module can be added on the basis of the visible light camera module to take into account the full-time use during day and night.
[0045] The above-mentioned is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.
Claims
1. An explosion-proof, fire-proof and waterproof reinforced audio and video recording device, characterized in that: The invention comprises a watertight movement (1), the outside of which is covered in sequence with a waterproof reinforcement layer (2), a fireproof and heat-insulating reinforcement layer (3) and an explosion-proof reinforcement layer (4); a thermal management reinforcement mechanism (5) for heat dissipation is also provided between the watertight movement (1) and the explosion-proof reinforcement layer (4); the watertight movement (1) comprises a main board, which is respectively connected to a camera module (101) and an electrical connector (102); the waterproof reinforcement layer (2) comprises a movement housing (201) formed in one piece on five sides and a bottom surface A movement cover plate (202) is connected to a camera module sealing cylinder (203) on one side of a movement housing (201); a camera module (101) is arranged inside the camera module sealing cylinder (203); a fireproof heat-insulating reinforcement layer (3) is composed of an aluminum silicate plate and fireproof heat-insulating cotton, and is assembled and wrapped around the outside of a watertight movement (1) in the form of building blocks; and a thermal management reinforcement mechanism (5) comprises a heat-dissipating mechanism respectively arranged inside the waterproof reinforcement layer (2) and a TEC heat pump outside the waterproof reinforcement layer (2).
2. The explosion-proof, fire-proof and waterproof reinforced audio and video recording device according to claim 1, characterized in that: A flexible flat cable passing through a slit in a movement housing (201) is connected between the camera module (101) and the mainboard of the watertight movement (1); and an electrical connector (102) passes through the movement housing (201) to interact with external data.
3. The explosion-proof, fire-proof and waterproof reinforced audio and video recording device according to claim 1, characterized in that: A dustproof and waterproof groove is provided on the inner side of the movement cover plate (202), and an oil-coated sealing rubber ring is embedded therein, which cooperates and is fixed with the dustproof and waterproof boss on the mounting surface of the movement housing (201).
4. The explosion-proof, fire-proof and waterproof reinforced audio and video recording device according to claim 1, characterized in that: A glass window is installed at the front end of the camera module sealing cylinder (203), and a dustproof and waterproof groove is provided at the rear end. An oil-coated sealing rubber ring (204) is installed in the dustproof and waterproof groove. The rubber ring (204) is slightly higher than the mounting surface and is fixed by the matching of the mounting surface of the movement housing (201) and the mounting surface of the camera module sealing cylinder (203).
5. The explosion-proof, fire-proof and waterproof reinforced audio and video recording device according to claim 1, characterized in that: The front end of the camera module sealing cylinder (203) is sealed with high-temperature resistant and high-strength glass, and a ceramic heat-insulating ring is sleeved on the outer side of the camera module sealing cylinder (203).
6. The explosion-proof, fire-proof and waterproof reinforced audio and video recording device according to claim 1, characterized in that: The explosion-proof reinforcement layer (4) comprises a five-sided integrated explosion-proof shell (405), with an explosion-proof upper cover (401) arranged on the top; a seismic isolation lining (403) is also arranged between the explosion-proof reinforcement layer (4) and the fireproof and heat-insulating reinforcement layer (3), and the seismic isolation lining (403) is reliably connected to the bottom plate of the explosion-proof shell (405) at multiple points through rubber damping and seismic isolators; the electric connector (102) passes through the fireproof and heat-insulating reinforcement layer (3) and the explosion-proof shell (405) to interact with the outside world, and a quick-release side cover (404) is also arranged at the outer end of the electric connector (102) passing through the explosion-proof shell (405).
7. The explosion-proof, fire-proof and waterproof reinforced audio and video recording device according to claim 1, characterized in that: The heat-averaging mechanism comprises a main chip heat-conducting block (501) and a heat-averaging fan (502); heat-collecting fins (503) are arranged around the main chip heat-conducting block (501); the main chip heat-conducting block (501) is used to extract the heat of the mainboard chip of the watertight movement (1) and quickly transfer it to the heat-collecting fins (503); the TEC heat pump comprises a TEC cooler (504), a heat pump fin (505) and a heat pump fan (506) arranged in sequence from bottom to top; the TEC cooler (504) is arranged on the outer surface of the top of the movement housing (201), and the heat pump fan (506) is connected to the outside.
8. The explosion-proof, fire-proof and waterproof reinforced audio and video recording device according to claim 1, characterized in that: It also includes a mounting bracket, which is used for fixing the installation and adjusting the azimuth and pitch angle.
9. The explosion-proof, fire-proof and waterproof reinforced audio and video recording device according to claim 1, characterized in that: It also includes a fill light module to allow for use throughout the day and night.