hard disk video recorder

Abstract

This utility model relates to a hard disk video recorder, comprising: a chassis assembly including a base and a cover; the base having a first mounting slot and a second mounting slot, the openings of the first and second mounting slots facing the same side; the cover detachably fitting onto the opening of the first mounting slot; a control component disposed within the first mounting slot; a fan assembly disposed on the side of the cover away from the base and electrically connected to the control component; and a hard disk mounting enclosure detachably disposed within the second mounting slot. The fan assembly drives external airflow toward the cover and diffuses outward along the cover, dissipating heat on the side of the cover and the hard disk mounting enclosure near the opening of the second mounting slot. It also dissipates heat from the control component through the cover and from the hard disk through the hard disk mounting enclosure, ensuring adequate heat dissipation while maintaining the hard disk video recorder's airtight and dustproof design. When it is necessary to disassemble or replace the hard disk, simply remove the hard disk mounting enclosure from the second mounting slot; the operation is simple and convenient.

Description

Technical Field

[0001] This utility model relates to the field of equipment heat dissipation technology, and in particular to a hard disk video recorder. Background Technology

[0002] In DVRs used in industries such as rail transportation and industrial control, it is usually not possible to install fans inside the chassis for air cooling in order to ensure a dust-free internal environment. However, to meet the needs of large-capacity data storage, DVRs typically need to use solid-state drives (SSDs) with an operating temperature range of 0-70℃, and natural heat exchange alone is insufficient to meet the cooling requirements.

[0003] In existing technologies, some hard disk recorders use fans installed on the outside of the chassis for cooling. However, installing or removing hard drives usually requires disassembling the entire chassis, making maintenance cumbersome. Utility Model Content

[0004] Therefore, it is necessary to provide a hard disk recorder that can ensure heat dissipation while facilitating hard disk installation and removal, in order to address the above problems.

[0005] This utility model provides a hard disk video recorder, comprising: a chassis assembly including a base and a cover, the base having a first mounting slot and a second mounting slot, the openings of the first mounting slot and the second mounting slot facing the same side, the cover being detachably fitted onto the opening of the first mounting slot; a control assembly disposed within the first mounting slot; a fan assembly disposed on the side of the cover opposite to the base and electrically connected to the control assembly; and a hard disk mounting enclosure detachably disposed within the second mounting slot, the hard disk mounting enclosure being used to mount a hard disk.

[0006] In the aforementioned hard disk recorder, when the fan assembly is running, it drives external airflow toward the cover and diffuses outward along the cover, thereby dissipating heat from the cover and the side of the hard disk mounting box near the second mounting slot. It can also dissipate heat from the control components installed in the first mounting slot through the cover, and from the hard disk mounting box through the hard disk mounting box. While keeping the hard disk recorder sealed and dustproof, it ensures that the heat dissipation requirements are met. When it is necessary to remove or replace the hard disk, it is only necessary to remove the hard disk mounting box from the second mounting slot. There is no need to remove the cover and fan assembly. The operation is simple and convenient, which facilitates maintenance.

[0007] In one embodiment, the cover has a third mounting groove and a first air duct communicating with the third mounting groove on the side opposite to the base, and the fan assembly is embedded in the third mounting groove; the hard disk mounting box has a second air duct communicating with the first air duct and / or the third mounting groove on the outer surface of the side opposite to the base.

[0008] With this configuration, the first and second air ducts can guide the airflow, allowing it to fully contact the cover and hard drive enclosure for heat dissipation, thus improving the heat dissipation effect.

[0009] In one embodiment, the cover has a plurality of parallel-spaced first fins on the side opposite to the base, and a first air duct is formed between any two adjacent first fins; and / or, the outer surface of the hard disk mounting box opposite to the base has a plurality of parallel-spaced second fins, and a second air duct is formed between any two adjacent second fins.

[0010] With this configuration, the first and second fins can achieve directional airflow, ensuring orderly airflow, and can also increase the heat dissipation area between the airflow and the cover and hard drive mounting box, thereby improving heat dissipation efficiency.

[0011] In one embodiment, the bottom wall of the third mounting groove is provided with a protruding post, and the fan assembly is disposed at the end of the protruding post away from the bottom wall of the third mounting groove.

[0012] This design creates a certain gap between the fan assembly and the bottom wall of the third mounting slot to reduce wind resistance and allow the airflow to better diffuse outward after impacting the bottom wall of the third mounting slot.

[0013] In one embodiment, the hard disk recorder further includes a heat-conducting component disposed on one side of the cover facing the first mounting slot and in contact with the control component; and / or, the hard disk recorder further includes a heat-conducting component disposed on the inner surface of the hard disk mounting box near the slot opening of the second mounting slot and used to be in contact with the hard disk.

[0014] With this configuration, the heat-conducting components can transfer the heat generated by the control components and hard drive during operation to the cover and hard drive mounting box, and dissipate the heat through the airflow passing through the cover and hard drive mounting box, thereby improving the heat dissipation effect on the control components and hard drive.

[0015] In one embodiment, the hard disk recorder further includes a heating component disposed on a side of the control component away from the cover; and / or, the hard disk recorder further includes a heating component disposed on the inner surface of the hard disk mounting box away from the slot of the second mounting slot, and used to fit against the hard disk.

[0016] With this setup, when the ambient temperature is low, the heating element can heat the control components and hard drive to ensure that the control components and hard drive can work normally, enabling the hard disk recorder to start cold in ultra-low temperature working environments and expanding its application scenarios.

[0017] In one embodiment, the base is further provided with an installation port that communicates with one end of the second mounting groove along a preset direction. One of the inner wall of the second mounting groove and the outer wall of the hard disk mounting box is provided with a sliding groove extending along the preset direction, and the other is provided with a slider that can slide and engage with the sliding groove.

[0018] With this design, the hard drive enclosure uses a pull-out installation method, and the slider and groove work together to restrict the sliding direction of the hard drive enclosure in the second installation slot, so that users can quickly and accurately install and align it.

[0019] In one embodiment, the outer surface of the chassis assembly is provided with an interface and / or indicator lights and / or buttons electrically connected to the control component; and / or, the outer surface of the chassis assembly is provided with a wiring groove, the wiring groove is provided with an interface electrically connected to the control component, and the chassis assembly further includes a first cover plate that is openable and closable in the opening of the wiring groove.

[0020] With this configuration, the hard disk recorder can transmit data and supply power to external devices via cables at the interface; indicator lights are used to display the working status of the hard disk recorder; buttons can be used to control operations such as resetting and turning on / off the hard disk recorder; the first cover plate can protect the interface in the wiring slot from external dust, moisture, etc., which can affect the normal use of the interface.

[0021] In one embodiment, the control component includes a motherboard, a main control module, a power module, and a communication module. The motherboard is disposed on the bottom wall of the first mounting slot, and the main control module, the power module, and the communication module are all disposed on the side of the motherboard facing the cover and electrically connected to the motherboard.

[0022] This configuration allows the power module to provide internal power to the DVR, while the communication module enables wireless data transmission with external devices, reducing cable connections between the DVR and external devices, simplifying assembly, and expanding application scenarios.

[0023] In one embodiment, the fan assembly includes at least two fans arranged side by side; and / or, the number of hard drive mounting boxes is at least two, each of the hard drive mounting boxes being arranged side by side.

[0024] This configuration, employing redundant fans, ensures that if one fan fails, another immediately starts, guaranteeing continuous and stable operation of the hard disk recorder and improving reliability. The presence of at least two hard disk enclosures allows for expansion of data storage capacity and ensures that each enclosure receives adequate airflow for effective heat dissipation. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a three-dimensional structural diagram of a hard disk video recorder according to one embodiment of the present invention;

[0027] Figure 2 Provided by this utility model Figure 1 Exploded view of a hard disk video recorder;

[0028] Figure 3 Provided by this utility model Figure 1 A cross-sectional view of a hard disk video recorder;

[0029] Figure 4 Provided by this utility model Figure 1 A partially exploded view of a hard disk video recorder;

[0030] Figure 5 Provided by this utility model Figure 1 A partial structural diagram of a hard disk video recorder;

[0031] Figure 6 Provided by this utility model Figure 5 Enlarged view of point A in the middle;

[0032] Figure 7 Provided by this utility model Figure 1 A partial side view of a hard disk video recorder;

[0033] Figure 8 Provided by this utility model Figure 1 Cross-sectional view of the hard drive enclosure.

[0034] Reference numerals: 1. Chassis assembly; 11. Base; 111. First mounting slot; 112. Second mounting slot; 113. Mounting port; 114. Slider; 12. Cover; 121. Third mounting slot; 122. First air duct; 123. First fin; 124. Protrusion; 125. Cable routing hole; 13. Interface; 14. Indicator light; 15. Button; 16. Wiring slot; 17. First cover plate; 171. Second snap-fit ​​connector; 18. Elastic element; 19. First snap-fit ​​connector; 2. Control components; 21. Motherboard; 22. Main control module; 23. Power module; 24. Communication module; 3. Fan assembly; 31. Fan; 32. Second cover plate; 4. Hard disk mounting box; 41. Second air duct; 42. Second fin; 43. Slide groove; 44. Bottom shell; 45. Top cover; 5. Heat conduction components; 51. Heat conduction block; 52. First heat conduction pad; 53. Second heat conduction pad; 6. Heating components; 61. First heating film; 62. Second heating film; 7. Hard disk. Detailed Implementation

[0035] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0036] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0040] In DVRs used in industries such as rail transportation and industrial control, it's typically impossible to install fans inside the chassis for air cooling to ensure a dust-free internal environment. However, to meet the demands of large-capacity data storage, DVRs usually require solid-state drives (SSDs) with an operating temperature range of 0-70°C, which cannot be adequately cooled by natural heat exchange alone. In existing technologies, some DVRs use external fans for cooling. However, removing or installing hard drives usually requires disassembling the entire chassis, making maintenance cumbersome.

[0041] To solve the above problems, such as Figures 1 to 8 As shown, this utility model provides a hard disk video recorder that facilitates hard disk installation and removal while ensuring heat dissipation.

[0042] like Figures 1 to 2 As shown, specifically, the hard disk recorder includes a chassis assembly 1, a control assembly 2, a fan assembly 3, and a hard disk mounting box 4. The chassis assembly 1 includes a base 11 and a cover 12. The base 11 has a first mounting slot 111 and a second mounting slot 112. The openings of the first mounting slot 111 and the second mounting slot 112 face the same side. The cover 12 is detachably fitted onto the opening of the first mounting slot 111. The control assembly 2 is located within the first mounting slot 111. The fan assembly 3 is located on the side of the cover 12 opposite to the base 11 and is electrically connected to the control assembly 2. The hard disk mounting box 4 is detachably located within the second mounting slot 112 and is used to mount a hard disk 7.

[0043] In the hard disk recorder provided in this embodiment, when the fan assembly 3 is running, it drives the external airflow to flow toward the cover 12 and diffuse outward along the cover 12, thereby dissipating heat on the side of the cover 12 and the hard disk mounting box 4 near the slot of the second mounting slot 112. It can also dissipate heat on the control component 2 installed in the first mounting slot 111 through the cover 12, and dissipate heat on the hard disk 7 installed in the hard disk mounting box 4 through the hard disk mounting box 4. While keeping the hard disk recorder sealed and dustproof, it can ensure that the heat dissipation requirements are met. When it is necessary to remove or replace the hard disk 7, it is only necessary to remove the hard disk mounting box 4 from the second mounting slot 112. There is no need to remove the cover 12 and the fan assembly 3. The operation is simple and convenient, which facilitates maintenance.

[0044] Furthermore, the direct contact between the airflow and the hard drive mounting box 4 not only improves heat dissipation efficiency, but also eliminates the need for a heat-conducting structure, such as a thermal pad, between the hard drive mounting box 4 and the chassis assembly 1. This avoids deformation, compression, or breakage of the heat-conducting structure due to repeated disassembly and reassembly of the hard drive mounting box 4, thereby ensuring the reliability of the hard drive mounting box 4.

[0045] like Figures 2 to 3 As shown, in one embodiment, the control component 2 includes a motherboard 21, a main control module 22, a power module 23, and a communication module 24. The motherboard 21 is disposed on the bottom wall of the first mounting slot 111. The main control module 22, the power module 23, and the communication module 24 are all disposed on the side of the motherboard 21 facing the cover 12 and are electrically connected to the motherboard 21. The power module 23 provides internal power to the hard disk recorder, and the communication module 24 can be at least one of wireless communication methods such as 5G, 4G, or WIFI to achieve wireless data transmission with external devices. This reduces the number of cables between the hard disk recorder and external devices, simplifies the assembly process, and expands the application scenarios of the hard disk recorder. Of course, in other embodiments, the control component 2 may only include the motherboard 21 and the main control module 22, powered by an external power source, and use cables to achieve data transmission between the hard disk recorder and external devices.

[0046] like Figure 1 As shown, the outer surface of the chassis assembly 1 is provided with an interface 13 that is electrically connected to the control assembly 2. The interface 13 may include various functional interfaces such as an antenna interface, aviation interface, power interface, USB interface, and HDMI interface, and can be located on the base 11 or on the cover 12. The hard disk recorder can transmit data and receive power from external devices via cables at the interface 13.

[0047] like Figures 4 to 6As shown, due to the high protection requirements of some interfaces 13, such as USB and HDMI interfaces, the outer surface of the chassis assembly 1 is provided with a wiring groove 16. The wiring groove 16 contains interfaces 13 that are electrically connected to the control assembly 2. The chassis assembly 1 also includes a first cover plate 17 that is openable and closable in the opening of the wiring groove 16. When visual debugging of the hard disk recorder is required, the first cover plate 17 can be opened for wiring; after use, the first cover plate 17 is closed to protect the interfaces 13 in the wiring groove 16 and prevent external dust, moisture, etc., from affecting the normal use of the interfaces 13. Of course, all interfaces can also be located in the wiring groove 16.

[0048] like Figure 6 As shown in the illustrated embodiment, one end of the first cover plate 17 is rotatably connected to the cover body 12. The cover body 12 is provided with a first latching member 19, and the other end of the first cover plate 17 is provided with a second latching member 171 that can latch and engage with the first latching member 19. This ensures the stability and reliability of the first cover plate 17 when closed, while also preventing the first cover plate 17 from completely detaching from the cover body 12, thus preventing loss. Specifically, the first latching member 19 can be a press-button buckle. An elastic element 18, such as a torsion spring or spring, is also provided between the first cover plate 17 and the cover body 12. The second latching member 171 on the first cover plate 17 presses against the press-button buckle to achieve self-locking upon pressing. After pressing again, the press-button buckle unlocks the second latching member 171, and the first cover plate 17 automatically opens due to the elastic force of the elastic element 18. Of course, in other embodiments, the first cover plate 17 and the cover body 12 can also be detachably connected by latching, plugging, screwing, etc. This embodiment of the present invention does not impose specific limitations here.

[0049] like Figure 1 As shown, the outer surface of the chassis assembly 1 is provided with indicator lights 14 that are electrically connected to the control assembly 2. The indicator lights 14 are used to display the working status of the hard disk recorder, such as "normal operation", "not working" or "abnormal" and other states. Furthermore, a buzzer (not shown) can also be provided inside the chassis assembly 1. The buzzer can work in conjunction with the indicator lights 14 to realize the sound and light alarm function and improve the warning effect.

[0050] like Figure 1 As shown, the outer surface of the chassis assembly 1 is provided with a button 15 that is electrically connected to the control assembly 2. The button 15 can be used to control the hard disk recorder to reset, start and stop, and other operations. For example, after the user has dealt with the alarm, they can press the button 15 to reset the recorder and easily restore it to normal operation.

[0051] like Figures 1 to 3As shown, the cover 12 has a third mounting groove 121 and a first air duct 122 communicating with the third mounting groove 121 on the side opposite to the base 11. The fan assembly 3 is embedded in the third mounting groove 121. The outer surface of the hard drive mounting box 4 opposite to the base 11 has a second air duct 41 that can communicate with the first air duct 122. At this time, the second air duct 41 is connected to the third mounting groove 121 through the first air duct 122. Alternatively, the second air duct 41 can also be directly connected to the third mounting groove 121. When the fan assembly 3 is running, it drives the external airflow to impact the bottom wall of the third mounting groove 121 and then splits it outward to the first air duct 122 and the second air duct 41. The first air duct 122 and the second air duct 41 can play a guiding role, so that the airflow can fully contact the cover 12 and the hard drive mounting box 4 for heat dissipation, thereby improving the heat dissipation effect.

[0052] like Figures 2 to 3 As shown, in one embodiment, the cover 12 has multiple parallel-spaced first fins 123 on its side facing away from the base 11, forming a first air duct 122 between any two adjacent first fins 123. The outer surface of the hard disk mounting box 4 facing away from the base 11 has multiple parallel-spaced second fins 42, forming a second air duct 41 between any two adjacent second fins 42. The multiple first fins 123 can form multiple parallel-spaced straight first air ducts 122, and the multiple second fins 42 can form multiple parallel-spaced straight second air ducts 41, achieving directional airflow and ensuring orderly airflow. Furthermore, the first fins 123 and second fins 42 can increase the heat dissipation area between the airflow and the cover 12 and the hard disk mounting box 4, improving heat dissipation efficiency. The first fins 123 can be integrally formed with the cover 12, or they can be separate structures and fixedly connected by adhesive, screws, etc. Similarly, the second fins 42 can be integrally formed with the hard disk mounting box 4, or they can be separate structures and fixedly connected by adhesive, screws, etc.

[0053] Of course, in other embodiments, a groove can be formed on the side of the cover 12 away from the base 11 to form a first air duct 122, and a groove can be formed on the outer surface of the hard disk mounting box 4 away from the base 11 to form a second air duct 41; and the first air duct 122 and the second air duct 41 can also be arranged in other regular or irregular ways such as arc, wave, spiral, divergent, etc. This utility model embodiment does not make specific limitations here.

[0054] like Figure 4As shown, in one embodiment, a protruding post 124 protrudes from the bottom wall of the third mounting groove 121, and the fan assembly 3 is disposed at the end of the protruding post 124 away from the bottom wall of the third mounting groove 121. The protruding post 124 provides a certain distance between the fan assembly 3 and the bottom wall of the third mounting groove 121 to reduce wind resistance and allow the airflow to better diffuse outward after impacting the bottom wall of the third mounting groove 121. Of course, in other embodiments, a protrusion can be added to the bottom of the fan assembly 3, or the fan assembly 3 can be fixed to the side wall of the third mounting groove 121, so that there is a certain distance between the fan assembly 3 and the bottom wall of the third mounting groove 121.

[0055] like Figure 4 As shown in the illustrated embodiment, the fan assembly 3 includes two fans 31 arranged side by side. By employing redundant fans 31, the hard disk recorder defaults to a single-fan 31 operating mode in normal operation to reduce energy consumption. When the operating temperature exceeds a set threshold, it automatically switches to a dual-fan 31 synchronous operation mode to enhance heat dissipation. In single-fan operating mode, if the running fan 31 fails, the other fan 31 immediately starts, simultaneously triggering an alarm to prompt the user for maintenance, ensuring continuous and stable operation of the hard disk recorder and improving reliability. Furthermore, the two fans 31 can be periodically staggered to prevent accumulated abnormalities caused by the idle fan 31 due to prolonged disuse. Of course, in other embodiments, the number of fans 31 can be set to one, three, four, or more depending on factors such as the structure, size, and operating temperature of the hard disk recorder; this embodiment does not impose specific limitations here.

[0056] like Figures 4 to 5 As shown, the fan assembly 3 also includes a second cover plate 32, which is detachably installed over the opening of the third mounting slot 121 to provide dust protection for the fan 31 and facilitate the disassembly and maintenance of the fan 31. A single second cover plate 32 can be used to protect multiple fans 31, or a separate second cover plate 32 can be provided for each fan 31.

[0057] like Figure 4 As shown, the bottom wall of the third mounting slot 121 also has a wiring hole 125 that communicates with the first mounting slot 111. The cable of the fan assembly 3 can extend into the first mounting slot 111 through the wiring hole 125 and be electrically connected to the control assembly 2.

[0058] like Figures 1 to 2As shown in the illustrated embodiment, there are two hard disk mounting enclosures 4, arranged side by side. This allows for expansion of data storage capacity and ensures that each hard disk mounting enclosure 4 receives sufficient airflow coverage, guaranteeing effective heat dissipation. Of course, in other embodiments, the number of hard disk mounting enclosures 4 can be set to one, three, four, or more, depending on factors such as the structure, size, and data storage capacity requirements of the hard disk recorder. This embodiment of the present invention does not impose specific limitations here.

[0059] like Figure 2 and Figure 8 As shown, the hard drive installation box 4 includes a detachably connected bottom shell 44 and a top cover 45 to facilitate the user's installation and removal of the hard drive 7.

[0060] like Figure 2 and Figure 8 As shown, the base 11 also has a mounting opening 113 that communicates with one end of the second mounting groove 112 along a preset direction. One of the inner wall of the second mounting groove 112 and the outer wall of the hard drive mounting enclosure 4 has a sliding groove 43 extending along the preset direction, and the other has a slider 114 that can slide and engage with the sliding groove 43. Thus, the hard drive mounting enclosure 4 adopts a pull-out installation method, and the cooperation between the slider 114 and the sliding groove 43 can limit the sliding direction of the hard drive mounting enclosure 4 within the second mounting groove 112, facilitating quick and accurate installation and alignment by the user. When the hard drive mounting enclosure 4 is installed in place, the hard drive 7 installed inside the hard drive mounting enclosure 4 can be electrically connected to the control component 2.

[0061] Furthermore, when the hard drive mounting box 4 is installed in place, it can be detachably fixed to the base 11 by means of snap-fit, plug-in, screws, locks, etc., to ensure the stability and reliability of the connection between the hard drive mounting box 4 and the base 11.

[0062] like Figure 3 , Figure 7 and Figure 8 As shown, the hard disk recorder also includes a heat-conducting component 5. Part of the heat-conducting component 5 is disposed on the side of the cover 12 facing the first mounting slot 111 and is in contact with the control component 2. The remaining part of the heat-conducting component 5 is disposed on the inner surface of the hard disk mounting box 4 near the opening of the second mounting slot 112 and is used to contact the hard disk 7. The heat-conducting component 5 can conduct the heat generated by the control component 2 and the hard disk 7 during operation to the cover 12 and the hard disk mounting box 4, and dissipate heat through the airflow passing through the cover 12 and the hard disk mounting box 4, thereby improving the heat dissipation effect on the control component 2 and the hard disk 7.

[0063] In the illustrated embodiment, since the heat sources of the hard disk recorder are mainly concentrated in the main control module 22, power module 23, communication module 24, and hard disk 7, the heat-conducting component 5 located in the first mounting slot 111 can be in contact with the main control module 22, power module 23, and communication module 24. Specifically, the heat-conducting component 5 includes a heat-conducting block 51 and a first heat-conducting pad 52. The heat-conducting block 51 is located on the side of the cover 12 facing the first mounting slot 111, and the first heat-conducting pad 52 is located on the side of the heat-conducting block 51 away from the cover 12 and is in contact with the control component 2. The heat-conducting block 51 can be made of a material with good thermal conductivity, such as aluminum, and the first heat-conducting pad 52 can protect the control component 2 and prevent the control component 2 from being damaged by the impact of the heat-conducting block 51. The heat-conducting component 5 also includes a second heat-conducting pad 53. The second heat-conducting pad 53 is disposed on the inner surface of the hard disk mounting box 4 near the slot opening of the second mounting groove 112 and is in contact with the hard disk 7. The second heat-conducting pad 53 can protect the hard disk 7 and prevent it from being damaged by impact from the hard disk mounting box 4. Of course, in other embodiments, heat-conducting components 5 that are in contact with other modules such as the motherboard 21 can be added as needed; or, while ensuring heat dissipation, heat-conducting pads that are in contact with the motherboard 21, main control module 22, power module 23 or communication module 24 can be disposed only on the bottom wall of the first mounting groove 111.

[0064] like Figure 3 and Figure 8 As shown, the hard disk recorder also includes a heating component 6. Part of the heating component 6 is located on the side of the control component 2 facing away from the cover 12, while the remaining heating component 6 is located on the inner surface of the hard disk mounting box 4 on the side away from the slot 112, and is used to contact the hard disk 7. When the ambient temperature is low, the heating component 6 can heat the control component 2 and the hard disk 7, ensuring their normal operation and enabling cold starts in ultra-low temperature environments, thus expanding its application scenarios. Furthermore, the heating component 6 does not affect the normal heat dissipation of the control component 2 and the hard disk 7. In this way, the hard disk recorder can balance high-temperature heat dissipation and low-temperature heating functions, supporting stable operation over a wide temperature range of -25℃ to 70℃, improving its applicability in complex environments such as rail transportation and industrial control.

[0065] In the illustrated embodiment, the heating assembly 6 includes a first heating film 61 disposed in the first mounting groove 111 and a second heating film 62 disposed in the hard disk mounting enclosure 4. The first heating film 61 is attached to the side of the main control module 22 facing away from the cover 12, and the second heating film 62 is attached to the hard disk 7. Of course, in other embodiments, heating assemblies 6 that are attached to other modules such as the motherboard 21, power module 23, and communication module 24 can be added as needed.

[0066] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A hard disk video recorder, characterized in that, include: The chassis assembly (1) includes a base (11) and a cover (12). The base (11) is provided with a first mounting groove (111) and a second mounting groove (112). The opening of the first mounting groove (111) and the opening of the second mounting groove (112) face the same side. The cover (12) is detachably fitted onto the opening of the first mounting groove (111). The control component (2) is located in the first mounting slot (111); A fan assembly (3) is disposed on one side of the cover (12) opposite to the base (11) and is electrically connected to the control assembly (2); and, The hard disk mounting box (4) is detachably disposed in the second mounting slot (112) and is used to install the hard disk (7).

2. The hard disk recorder according to claim 1, characterized in that, The cover (12) has a third mounting groove (121) and a first air duct (122) communicating with the third mounting groove (121) on one side away from the base (11), and the fan assembly (3) is embedded in the third mounting groove (121); The hard disk mounting box (4) has a second air duct (41) on the outer surface of the side opposite to the base (11) that can communicate with the first air duct (122) and / or the third mounting slot (121).

3. The hard disk recorder according to claim 2, characterized in that, The cover (12) has a plurality of parallel and spaced first fins (123) on one side away from the base (11), and a first air duct (122) is formed between any two adjacent first fins (123); and / or, The hard disk mounting box (4) has a plurality of parallel and spaced second fins (42) on the outer surface of the side opposite to the base (11), and a second air duct (41) is formed between any two adjacent second fins (42).

4. The hard disk recorder according to claim 2, characterized in that, The bottom wall of the third mounting groove (121) is provided with a protruding post (124), and the fan assembly (3) is located at one end of the protruding post (124) away from the bottom wall of the third mounting groove (121).

5. The hard disk recorder according to claim 1, characterized in that, The hard disk recorder further includes a heat-conducting component (5), which is disposed on one side of the cover (12) facing the first mounting groove (111) and is in contact with the control component (2); and / or, The hard disk recorder also includes a heat-conducting component (5), which is disposed on the inner surface of the hard disk mounting box (4) near the slot of the second mounting slot (112) and is used to fit against the hard disk (7).

6. The hard disk recorder according to claim 1, characterized in that, The hard disk recorder further includes a heating component (6), which is disposed on one side of the control component (2) away from the cover (12); and / or, The hard disk recorder also includes a heating component (6), which is disposed on the inner surface of the hard disk mounting box (4) on the side away from the slot of the second mounting slot (112) and is used to fit against the hard disk (7).

7. The hard disk recorder according to claim 1, characterized in that, The base (11) is also provided with an installation port (113) that communicates with one end of the second mounting groove (112) along a preset direction. One of the inner wall of the second mounting groove (112) and the outer wall of the hard disk mounting box (4) is provided with a sliding groove (43) extending along the preset direction, and the other is provided with a slider (114) that can slide and cooperate with the sliding groove (43).

8. The hard disk video recorder according to claim 1, characterized in that, The outer surface of the chassis assembly (1) is provided with an interface (13) and / or indicator lights (14) and / or buttons (15) that are electrically connected to the control assembly (2); and / or, The outer surface of the chassis assembly (1) is provided with a wiring groove (16), and the wiring groove (16) is provided with an interface (13) that is electrically connected to the control assembly (2). The chassis assembly (1) also includes a first cover plate (17) that is openable and closable in the opening of the wiring groove (16).

9. The hard disk video recorder according to claim 1, characterized in that, The control component (2) includes a motherboard (21), a main control module (22), a power module (23), and a communication module (24). The motherboard (21) is disposed on the bottom wall of the first mounting slot (111). The main control module (22), the power module (23), and the communication module (24) are all disposed on one side of the motherboard (21) facing the cover (12) and are electrically connected to the motherboard (21).

10. The hard disk video recorder according to any one of claims 1-9, characterized in that, The fan assembly (3) includes at least two fans (31) arranged side by side; and / or, The number of hard disk mounting boxes (4) is at least two, and each hard disk mounting box (4) is arranged side by side.

Images