Computer case integrated with air purification function

Abstract

The application discloses a computer case with integrated air purification function, which takes a structural air intake base as a core carrier, the structural air intake base simultaneously constitutes a load-bearing chassis of the computer case, and a gas-tight sealed internal stable pressure cavity is integrally defined in the structural air intake base; the sealed internal stable pressure cavity is provided with an air inlet for receiving ambient air, an air outlet communicated with a component cavity for accommodating computer hardware components, and a filtering and purifying component and a high static pressure centrifugal fan are sequentially arranged between the air inlet and the air outlet, so that a zero-bypass stable pressure cavity body with full air flow path forced filtering is formed; the sealed internal stable pressure cavity and the component cavity cooperatively form a positive pressure air path structure with bottom-in and top-out, and the static pressure in the component cavity is continuously higher than ambient air pressure by virtue of air path physical characteristics, so that air flow of all parts communicated with the outside of the component cavity is discharged to the outside. Through integrated structural design, the application realizes collaborative operation of air purification, computer case dust prevention and hardware heat dissipation, and has the characteristics of high filtering efficiency, stable positive pressure, good cooling effect and convenient maintenance.

Description

Technical Field

[0001] This invention relates to the field of computer hardware technology, and in particular to a computer chassis with integrated air purification function. Background Technology

[0002] Inside a computer, electronic components, including the central processing unit (CPU), graphics processor (GPU), voltage regulator module, memory modules, and storage devices, generate a significant amount of heat during operation. The computer chassis relies on a forced-air cooling system (typically consisting of one or more axial fans) to draw ambient air into the chassis and flow it over the heat-generating components. This continuous forced intake of ambient air accelerates the accumulation of airborne particles inside the chassis, including dust, pollen, textile fibers, skin flakes, and fine particulate matter (PM2.5) with a diameter of 2.5 micrometers or smaller. Over time, these particles form a thermal insulation layer on heat sinks and cooling surfaces, reducing heat dissipation performance and significantly shortening the lifespan of cooling fans and sensitive electronic components.

[0003] Current consumer computer chassis generally use an axial fan combined with a simple mesh filter for cooling, which has the following technical drawbacks: Firstly, the filtration and protection effect is poor. Most existing chassis use thin filters made of PVC or nylon, which can only intercept hair and large dust particles. They have extremely low filtration efficiency for fine particulate matter such as PM2.5, and cannot prevent dust from entering the chassis. At the same time, the filter and chassis structure cannot form a sealed interface, and airflow bypass is very easy to occur at panel seams, ports and other places. Unfiltered air directly enters the chassis, and with long-term use, dust will accumulate on the surface of the heat sink, reduce heat dissipation efficiency, and accelerate hardware aging and damage.

[0004] Secondly, the cooling system has inherent limitations. Existing chassis generally rely on axial fans as airflow driving devices. Axial fans can only achieve high airflow in low static pressure environments and cannot overcome the airflow resistance of high-efficiency filter media. Forcibly installing HEPA-grade high-efficiency filters will cause fan pressure stall and a significant reduction in airflow, which cannot meet the hardware cooling requirements. Therefore, existing consumer-grade chassis cannot apply HEPA-grade or higher-level filter media to their filtration architecture and cannot achieve truly efficient air filtration.

[0005] Third, the positive pressure protection is ineffective and complex to control. Some chassis create positive pressure protection by increasing the number of intake fans, but the simultaneous operation of intake and exhaust fans will create mutually canceling pressure zones inside the chassis, making it impossible to form a stable internal positive pressure. Without continuous internal positive pressure, dust will be sucked in through the ports and unsealed panel gaps, and unfiltered air cannot be prevented from entering through the gaps.

[0006] Fourth, it lacks ambient air purification capabilities. The cooling airflow of existing computer cases serves only as a medium for hardware heat dissipation, dissipating directly after exhaust and failing to positively improve indoor air quality. It cannot work in conjunction with the case's cooling system, nor can it reuse cooling airflow. While traditional computer cases typically integrate basic mesh or filter screens to capture coarse dust particles, these filters cannot provide meaningful filtration for fine particles, and their design goal is not to improve room air quality.

[0007] Fifth, the maintenance is inconvenient. Most of the filters in existing chassis are located inside the panel. Cleaning or replacing them requires removing the side panel of the chassis, and sometimes even disconnecting the power to disassemble some hardware. The operation is cumbersome and it is easy for users to neglect filter maintenance, resulting in problems such as filter blockage and reduced heat dissipation performance.

[0008] Therefore, the present invention proposes a new technical solution. Summary of the Invention

[0009] The purpose of this invention is to provide a computer chassis with integrated air purification function to solve at least one of the problems mentioned in the background art.

[0010] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A computer chassis with integrated air purification function includes a chassis body, the chassis body including a structural air intake base, an internal frame and a chassis panel; The air intake base is supported below the internal frame and fixedly connected to the internal frame, forming the load-bearing chassis of the chassis body. The air intake base of the structure has an integrally defined sealed internal pressure stabilizing cavity, and the box plate is surrounded on the outside of the internal frame. The internal frame and the box plate are enclosed to form a component cavity for accommodating computer hardware components. The sealed internal pressure-stabilizing cavity has an air inlet for receiving ambient air and an air outlet connected to the component cavity. A filter and purification component is provided between the air inlet and the air outlet, so that ambient air can only be drawn in through the air inlet, filtered by the filter and purification component, and discharged through the air outlet before entering the sealed internal pressure stabilizing chamber, forming a zero bypass pressure stabilizing chamber. The sealed internal pressure stabilizing chamber and the component chamber work together to form a bottom-in, top-out positive pressure air passage architecture, so that the filtered air is continuously sent into the component chamber after being pressurized by the sealed internal pressure stabilizing chamber, so that the static pressure in the component chamber is always higher than the ambient air pressure, and the airflow in all the communication parts between the component chamber and the external environment is discharged to the outside, preventing unfiltered ambient air from entering the component chamber.

[0011] According to an embodiment of the present invention, a computer chassis with integrated air purification function is provided, wherein the structural air intake base is a single die-cast integral structure, forming a seamless and airtight sealed internal pressure stabilizing cavity; or the structural air intake base is a multi-part splicing assembly, wherein the multi-part splicing assembly is spliced ​​together by welding, bolting connection with sealing structure, bonding or interlocking structure with sealing structure to form a seamless and airtight sealed internal pressure stabilizing cavity.

[0012] According to an embodiment of the present invention, a computer chassis with integrated air purification function includes a filtration and purification assembly comprising a filtration execution unit, the filtration execution unit comprising a removable filter element and a filter track corresponding to the air inlet and fixed in a sealed internal pressure stabilizing chamber, the removable filter element being slidably installed in the filter track.

[0013] According to an embodiment of the present invention, a computer chassis with integrated air purification function is provided with a flexible peripheral sealing gasket on the surface of the removable filter element. When the filter element is inserted into the filter track, the flexible peripheral sealing gasket forms an initial mechanical seal structure by means of dimensional tolerance and material compressibility. The negative pressure in the internal pressure stabilizing chamber applies additional compressive force to the flexible peripheral sealing gasket, thereby achieving zero bypass filtration.

[0014] According to an embodiment of the present invention, a computer chassis with integrated air purification function includes a filter purification assembly further comprising a power drive unit. The power drive unit includes at least one centrifugal fan disposed within a sealed internal pressure stabilizing chamber. The centrifugal fan is fixed within the sealed internal pressure stabilizing chamber by a mounting bracket. The centrifugal fan is a high static pressure radial fan, and its static pressure is sufficient to drive airflow through the filter purification assembly and maintain positive pressure within the assembly chamber. If multiple centrifugal fans are configured, the multiple centrifugal fans are arranged in parallel or in series within the sealed internal pressure stabilizing chamber.

[0015] According to an embodiment of the present invention, a computer chassis with integrated air purification function is provided, wherein the removable filter element is equipped with a composite filter medium, the filter medium having a capture efficiency of not less than 99.95% for particles with a diameter of 0.3μm; the removable filter element also integrates an activated carbon layer for adsorbing volatile organic compounds.

[0016] According to an embodiment of the present invention, a computer chassis with integrated air purification function is provided, wherein the chassis panel is a solid non-perforated panel, which is made of tempered glass, metal or high-strength polymer, and is used to block uncontrolled air intake paths and help maintain a positive pressure difference in the component cavity.

[0017] According to an embodiment of the present invention, a computer chassis with integrated air purification function is provided with a rotatable air guide device at the air outlet of a centrifugal fan in the sealed internal pressure stabilizing cavity. The rotatable air guide device includes a guide body rotatably installed at the air outlet of the centrifugal fan. The guide body has an asymmetrical air outlet that is eccentrically positioned relative to the fan outlet. The orientation of the asymmetrical air outlet is adjusted synchronously with the rotation of the guide body to guide the filtered air to the target heat-generating hardware area in the component cavity.

[0018] According to an embodiment of the present invention, a computer chassis with integrated air purification function is provided. A shielding cavity is configured within the sealed internal pressure-stabilizing chamber, between the filter purification component and the air outlet. A UVC LED module is installed within the shielding cavity, with the light-emitting surface of the UVC LED module facing the airflow channel of the sealed internal pressure-stabilizing chamber. The inner wall of the shielding cavity is provided with a UVC shielding coating. This UVC shielding coating is configured to minimize stray UVC leakage and maximize irradiation of the flowing air. Firstly, it firmly locks the ultraviolet rays within the cavity, preventing them from leaking out and harming people or damaging parts. Secondly, it reflects the ultraviolet rays into the airflow channel, ensuring that every part of the flowing air is fully irradiated by ultraviolet rays, guaranteeing a sterilization effect. The UVC LED module is equipped with a safety interlock mechanism, which includes a normally closed trigger switch linked to the chassis panel and on / off contacts linked to the centrifugal fan power supply circuit. The normally closed trigger switch and on / off contacts are connected in series in the power supply circuit of the UVC LED module and can only be activated when the airflow is flowing and the chassis panel is fully closed; otherwise, it is automatically disabled.

[0019] According to an embodiment of the present invention, a computer chassis with integrated air purification function further includes a control board electrically connected to the centrifugal fan. The control board is configured with a performance mode that prioritizes hardware cooling, a purification mode that prioritizes room air purification, and a silent mode that maintains positive pressure while limiting noise. The control board is also connected to an environmental sensor for automatically adjusting the speed of the centrifugal fan based on the detection data.

[0020] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. This invention uses a structural air intake base as its core carrier, which also forms the load-bearing chassis of the computer case. Internally, it integrally defines an airtight, sealed internal pressure-stabilizing chamber. This chamber has an air inlet for receiving ambient air and an air outlet connected to the component cavity housing the computer hardware components. A filter purification component and a high static pressure centrifugal fan are sequentially arranged between the air inlet and outlet, forming a zero-bypass pressure-stabilizing chamber with forced filtration throughout the entire airflow path. The sealed internal pressure-stabilizing chamber and the component cavity work together to form a bottom-in, top-out positive pressure airflow architecture. Relying on the physical characteristics of the airflow path, the static pressure inside the component cavity remains higher than the ambient air pressure, causing all airflow from the component cavity connected to the outside to be discharged outwards. This invention, through its integrated structural design, achieves coordinated operation of air purification, chassis dust prevention, and hardware heat dissipation, featuring high filtration efficiency, stable positive pressure, good cooling effect, and convenient maintenance.

[0021] 2. This invention, in conjunction with a high static pressure centrifugal fan and equipped with a high-efficiency filter medium, has an extremely high capture efficiency for fine particulate matter. It can not only prevent dust from entering the chassis and contaminating the hardware, but also continuously purify the indoor air environment and achieve efficient reuse of cooling airflow.

[0022] 3. This invention uses a high static pressure radial centrifugal fan as the airflow driving component. While overcoming the resistance of the filter media, it provides sufficient airflow to meet the heat dissipation needs of computer hardware, adapting to the heat dissipation and purification requirements of different chassis sizes. The rotatable air guide device at the fan outlet can flexibly adjust the output direction of the cooling airflow, precisely guiding the clean airflow to the core heat-generating hardware area. This eliminates the need for complex fixed airflow structures, achieving targeted and efficient heat dissipation and significantly optimizing the thermal management effect inside the chassis.

[0023] 4. This invention incorporates a shielded UVC LED module between the filter and purification components and the air outlet. This module allows for disinfection before the airflow enters the component cavity, further enhancing air purification efficiency. The accompanying safety interlock mechanism automatically cuts off power to the disinfection module when the chassis panel is opened or the centrifugal fan stops, preventing ultraviolet radiation leakage and ensuring safe and reliable operation.

[0024] 5. The control board accompanying this invention features multiple operating modes to adapt to different usage scenarios, such as high-load hardware heat dissipation, rapid indoor environment purification, and low-noise operation. Combined with an environmental sensor, it can automatically adjust the centrifugal fan's operating status based on indoor air quality and hardware operating temperature, achieving intelligent operation while balancing user experience and energy efficiency.

[0025] 6. The filter element of this invention adopts a sliding installation structure, allowing users to directly remove and replace the filter element from outside the chassis without disassembling the chassis panel or interrupting the main unit's operation, making maintenance simple and convenient. The chassis uses a solid panel without openings, which not only blocks uncontrolled air intake paths and enhances positive pressure protection, but also effectively blocks the transmission of noise inside the chassis. Combined with the operating characteristics of the centrifugal fan, this significantly reduces the overall operating noise of the machine and improves the user experience. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a three-dimensional schematic diagram of the computer chassis body with integrated air purification function according to the present invention. Figure One ; Figure 2 This is a three-dimensional schematic diagram of the computer chassis body with integrated air purification function according to the present invention. Figure Two ; Figure 3 This is a schematic diagram of the main body of the computer chassis with integrated air purification function according to the present invention. Figure 4 This is a schematic diagram of the airflow in and out of the computer chassis with integrated air purification function according to the present invention. Figure 5 This is a three-dimensional schematic diagram of the air intake base of the computer chassis integrating air purification function according to the present invention; Figure 6 This is a schematic diagram of the air intake base of a computer chassis integrating air purification function according to the present invention. Figure One ; Figure 7 This is a schematic diagram of the air intake base of a computer chassis integrating air purification function according to the present invention. Figure Two ; Figure 8 This is a three-dimensional schematic diagram of the removable filter element of a computer chassis with integrated air purification function according to the present invention. Figure One ; Figure 9 This is a three-dimensional schematic diagram of the removable filter element of a computer chassis with integrated air purification function according to the present invention. Figure Two ; Figure 10 This is a schematic diagram of the rotatable air guide device for a computer chassis with integrated air purification function according to the present invention.

[0028] In the diagram: 10. Structural air intake base; 12. Removable filter element; 16. Flexible peripheral sealing gasket; 20. Centrifugal fan; 22. Mounting bracket; 24. Vibration mounting base; 30. Rotatable air guide device; 40. UVC LED module; 50. Chassis body; 51. Internal frame; 52. Panel; 62. Motherboard; 64. CPU module; 66. GPU module; 68. Power supply unit; 70. Exhaust port. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] A computer chassis with integrated air purification function, such as Figures 1 to 10 As shown, it includes a chassis body 50, which includes a structural air intake base 10, an internal frame 51, and a box panel 52. The air intake base 10 is supported below the internal frame 51 and is fixedly connected to the internal frame 51 by fasteners, welding or interlocking structure, directly forming the load-bearing chassis of the chassis body 50. The air intake base 10 of the structure has an integrally defined sealed internal pressure stabilizing cavity. The box plate 52 is arranged around the outside of the internal frame 51. The internal frame 51 and the box plate 52 form a component cavity for accommodating computer hardware components (such as motherboard 62, CPU module 64, GPU module 66, power supply unit 68, storage device, etc.). The structural air intake base 10 can stably support the weight of the internal frame 51 and all computer hardware components installed in the component cavity; The sealed internal pressure-stabilizing cavity has an air inlet for receiving ambient air and an air outlet connected to the component cavity. The air inlet is located on the side or bottom of the structural air inlet base 10 for receiving external ambient air, and the air outlet is located on the top surface of the structural air inlet base 10 and is directly connected to the component cavity above. A filtration and purification assembly is provided between the air inlet and the air outlet. The filtration and purification assembly is divided into a filtration execution unit and a power drive unit along the airflow path. After the ambient air enters through the air inlet, it must first be filtered by the filtration execution unit, then pressurized and delivered by the power drive unit, and finally enter the assembly cavity through the air outlet. There is no airflow path that can bypass the filtration execution unit, so that the ambient air can only be drawn in through the air inlet, filtered by the filtration and purification assembly, and discharged through the air outlet before entering the sealed internal pressure stabilizing cavity, thereby forming a zero bypass pressure stabilizing cavity. The sealed internal pressure-stabilizing chamber and the component cavity work together to form a bottom-in, top-out positive pressure air passage architecture. The power drive unit continuously sends filtered air into the component cavity, so that the filtered air is pressurized by the sealed internal pressure-stabilizing chamber and continuously sent into the component cavity, so that the static pressure in the component cavity is always higher than the ambient air pressure. This ensures that the airflow from all connecting parts between the component cavity and the external environment (all gaps, ports, reserved exhaust gaps, exhaust port 70 and the joint of the box plate 52) is discharged to the outside, realizing natural exhaust and preventing unfiltered ambient air from entering the component cavity.

[0031] The complete workflow of this embodiment is as follows: When the centrifugal fan 20 is running, a negative pressure is formed in the sealed internal pressure stabilizing chamber, drawing in ambient air from the air inlet. The ambient air first passes through the removable filter element 12 to remove pollutants such as particulate matter and volatile organic compounds, forming clean air. After entering the sealed internal pressure stabilizing chamber, the clean air is pressurized by the centrifugal fan 20 and delivered upward to the component cavity through the air outlet. The continuously supplied clean air creates a positive pressure in the component cavity that is higher than the ambient air pressure. The airflow flows along the bottom-in, top-out path through the heat-generating hardware such as the CPU module 64 and GPU module 66, carrying away heat, and then is discharged outward from the joints, ports, and exhaust gaps of the component cavity. At the same time, the positive pressure causes the airflow in all connected parts to flow outward, completely preventing the intrusion of unfiltered air. The clean air output rate is suitable for purifying the ambient air in a room with a building area of ​​approximately 10 to 30 square meters.

[0032] This invention enables the computer chassis to simultaneously perform multiple functions as a computer hardware heat dissipation and protection system, as well as an indoor air purifier. It can be used directly as an independent indoor air purification device without the need for additional independent purification fans, circulation air paths, or control components. Throughout the entire computer's operation cycle, it simultaneously achieves continuous circulation and filtration purification of the indoor ambient air. This invention constructs a zero-bypass, fully-forced airflow filtration path from the air inlet to the air outlet, ensuring that 100% of the air drawn in from the environment flows through the filtration and purification components. There is no bypass leakage of unfiltered air, and the filtration efficiency remains unchanged. This forms a complete closed-loop air circulation path: indoor ambient air → air inlet → filtration and purification components → sealed internal pressure stabilizing chamber → centrifugal fan pressurization → component chamber → hardware heat dissipation and discharge back into the indoor environment. During computer operation, the entire cycle of indoor air intake, filtration, and clean air output is continuously completed, fully conforming to the core working principle of an indoor air purifier. This completely solves the shortcomings of traditional computer chassis, which can only achieve passive dust prevention inside the chassis and cannot effectively purify the indoor ambient air.

[0033] This invention allows for precise matching of the Clean Air Delivery Rate (CADR) required by the target space by flexibly selecting the specifications, number, and configuration of the centrifugal fan and filter purification components. The filter purification components adopt a modular and detachable design, allowing for the selection of detachable filter elements with corresponding filtration levels, effective filtration areas, and wind resistance characteristics according to the size and purification needs of the target purification space. The ultimate goal is to achieve the best indoor air purification effect while taking into account the core requirements of computer hardware heat dissipation and positive pressure dust prevention in the cavity.

[0034] In an optional embodiment, the structural air intake base 10 adopts a single die-cast aluminum unibody structure. The base body with an internal cavity is formed in one piece through a die-casting process, creating a seamless and airtight sealed internal pressure-stabilizing cavity, while possessing excellent structural strength and heat dissipation performance. In another optional embodiment, the structural air intake base 10 is a multi-part assembly. It can be formed by welding or bolting steel plates or aluminum alloy plates with sealing structures, or by bonding or interlocking structures with sealing structures. Sealing gaskets or sealants are placed at the joints for airtight treatment, ultimately forming a seamless and airtight sealed internal pressure-stabilizing cavity, adaptable to different production processes and cost requirements.

[0035] In a further embodiment, the filtration unit includes a removable filter element 12 and a filter track corresponding to the air inlet and fixed within a sealed internal pressure-regulating chamber. In an optional embodiment, the filter track includes guide rails or channels configured to align the filter element with the sealed internal pressure-regulating chamber upon insertion. Specifically, the filter track consists of two parallel guide rails, with both sides of the removable filter element 12 slidingly engaged with the guide rails and slidably installed within the filter track, enabling hot-swappable maintenance without disassembly or power interruption. In an optional embodiment, the filter track is configured to accommodate a rear-mounted filter element, allowing the filter element to be inserted and removed from the rear of the air inlet base 10 without removing the external chassis panel or shutting down the chassis power.

[0036] In a further embodiment, the filtration execution unit includes a filter load indicator configured to alert the user when the removable filter element 12 needs to be replaced. The indicator is triggered by one or more of the following: accumulated operating time, measured pressure drop across the removable filter element 12, or air quality sensor readings. The filter load indicator includes one or more of the following: a mechanical indicator flag, an LED indicator, or a software notification sent to a connected host system.

[0037] In a further embodiment, the surface of the removable filter element 12 is provided with a flexible peripheral sealing gasket 16. In an optional embodiment, the flexible peripheral sealing gasket 16 is located on the mating surface of the pressure stabilizing chamber housing, or simultaneously on the mating surfaces of the removable filter element 12 and the pressure stabilizing chamber housing. In an optional embodiment, the flexible peripheral sealing gasket 16 is made of one or more compressible materials selected from EVA foam, felt, foam rubber, silicone, or EPDM elastomer. When the filter element is inserted into the filter track, the flexible peripheral sealing gasket 16, based on the dimensional tolerance between the filter element and the track and the compressibility of the flexible peripheral sealing gasket 16, forms an initial mechanical seal structure with the inner wall of the sealed internal pressure stabilizing chamber. When the centrifugal fan 20 is running, the negative pressure in the sealed internal pressure stabilizing chamber applies additional compressive force to the flexible peripheral sealing gasket 16, further compressing the flexible peripheral sealing gasket 16, strengthening the sealing effect, and completely preventing airflow from bypassing the filter element, achieving zero bypass filtration.

[0038] In a further embodiment, the removable filter element 12 is equipped with a composite filter medium. The core of the composite filter medium is a high-efficiency filter layer of HEPA grade or above, which has a capture efficiency of not less than 99.95% for particles with a diameter of 0.3μm, and can effectively intercept fine particulate matter such as dust, pollen, and PM2.5. At the same time, the removable filter element 12 also integrates an activated carbon layer for adsorbing volatile organic compounds. The activated carbon layer is set downstream or upstream of the high-efficiency filter layer to adsorb gaseous pollutants such as volatile organic compounds and odors in the airflow, further improving the air purification effect.

[0039] In optional implementations, the filter media may include electrostatically charged fibers or a combination of stratified pre-filters and fine filters; filter depth and pleating geometry may be selected for specific chassis specifications to balance pressure drop, clean air delivery rate, and service life.

[0040] In a further embodiment, the power drive unit includes at least one centrifugal fan 20 disposed within a sealed internal pressure-stabilizing chamber. The centrifugal fan 20 is fixed within the sealed internal pressure-stabilizing chamber by a mounting bracket 22. An elastic vibration mounting seat 24 is provided between the mounting bracket 22 and the structural air intake base 10 to decouple the fan vibration from the chassis body 50, reducing operating noise and vibration. In an optional embodiment, the elastic vibration mounting seat 24 is made of one or more materials including silicone, rubber, or thermoplastic polyurethane (TPU). The centrifugal fan 20 is a high static pressure radial fan, providing sufficient static pressure to drive airflow through H13 HEPA or higher grade filter media and generating suction sufficient to maintain the substantially zero bypass filter seal during normal operation, maintaining positive pressure within the component cavity, thus completely solving the problem that traditional axial fans cannot adapt to high-efficiency filter media. The resistance to airflow generated by H13 HEPA or higher grade filter media is significantly higher than that of thin mesh panels used in traditional PC chassis. Axial fans used in traditional PC cooling systems will experience pressure stall when subjected to this resistance, failing to maintain sufficient airflow through the filter media. The centrifugal fan 20, designed for the chassis application of this patent, can overcome this resistance while maintaining an airflow rate sufficient to meet component cooling and clean air output for purifying the ambient air in occupied rooms.

[0041] In an optional embodiment, two centrifugal fans 20 are configured and arranged in parallel within the sealed internal pressure stabilizing chamber, which can significantly increase the airflow volumetric flow rate and meet the cooling and purification requirements of large chassis; in another optional embodiment, multiple centrifugal fans 20 are arranged in series, which can further increase the output static pressure and meet ultra-high resistance filter media and special application scenarios.

[0042] In a further embodiment, the enclosure panel 52 is a solid, non-perforated panel, which can be made of tempered glass, metal, or high-strength polymer. Sealing strips are provided at the joints between the enclosure panel 52 and the internal frame 51 to block all uncontrolled air intake paths, further helping to maintain a positive pressure differential within the component cavity. Simultaneously, the solid, non-perforated panel eliminates the need for ventilation mesh, resulting in a cleaner appearance and effectively blocking noise transmission within the chassis, reducing overall operating noise.

[0043] In a further embodiment, a rotatable air guide device 30 is provided at the outlet of the centrifugal fan 20 within the sealed internal pressure stabilizing chamber. The rotatable air guide device 30 is an offset elliptical guide tube structure, which includes a guide body rotatably mounted at the outlet of the centrifugal fan 20. The guide body has an asymmetrical air outlet that is eccentrically positioned relative to the fan outlet. The asymmetrical air outlet is an elliptical or elongated narrow opening that can form a focused directional airflow. The orientation of the asymmetrical air outlet is adjusted synchronously with the rotation of the guide body. The user can manually adjust the rotation angle of the guide body through a knob or lever outside the chassis, or it can be electrically adjusted by a servo motor. The control board automatically adjusts the angle position of the rotatable air guide device 30 based on thermal sensor data from inside the component cavity, directing the filtered air to the target heat-generating hardware area inside the component cavity, such as one or more core heat-generating areas of the graphics processor (GPU module 66), central processing unit (CPU module 64), storage device, or memory module, or directing the filtered air to bypass obstacles such as large expansion cards and cable bundles, achieving targeted and efficient cooling.

[0044] In an alternative embodiment, the rotatable air guide 30 can be adjusted between discrete indexed positions corresponding to predefined thermal regions within the component cavity. The rotatable air guide 30 is continuously rotatable within a defined angular range. Alternatively, multiple rotatable air guides 30 and multiple centrifugal fans 20 can be configured, with each guide associated with its respective centrifugal fan 20, and each rotatable air guide 30 can be independently adjusted to guide airflow to different thermal regions within the component cavity.

[0045] In a further embodiment, a shielding cavity is configured within the sealed internal pressure-stabilizing chamber, between the filter purification component and the air outlet. A UVC LED module 40 is installed within the shielding cavity, with its light-emitting surface facing the airflow channel of the sealed internal pressure-stabilizing chamber. This allows for UVC radiation at a standard sterilization wavelength to disinfect the filtered airflow before it enters the component cavity, reducing the microbial load in the airflow. The inner wall of the shielding cavity is provided with a UVC shielding coating. This UVC shielding coating is configured to minimize stray UVC leakage and maximize irradiation of the flowing airflow. Firstly, it securely locks ultraviolet light within the cavity, preventing it from leaking out and harming people or damaging components. Secondly, it reflects the ultraviolet light into the airflow channel, ensuring that every part of the airflow is fully irradiated by ultraviolet light, guaranteeing a sterilization effect. In alternative implementations, other sterilization technologies, including far-UVC light sources or photocatalytic oxidation modules, may be employed, provided that they remain isolated from user contact and sensitive electronic components.

[0046] In an optional embodiment, the UVC LED module 40 is equipped with a safety interlock mechanism. The safety interlock mechanism includes a normally closed trigger switch linked to the housing 52 and an on / off contact linked to the power supply line of the centrifugal fan 20. The normally closed trigger switch and the on / off contact are connected in series in the power supply circuit of the UVC LED module 40. The UVC LED module 40 can only be powered on and work when both conditions are met simultaneously, namely when the centrifugal fan 20 is in operation and the housing 52 is fully closed. If either condition is not met, the power supply circuit is disconnected and the UVC LED module 40 is automatically disabled, thus completely eliminating the risk of UVC radiation leakage.

[0047] In a further embodiment, the computer chassis with integrated air purification function also includes a control board electrically connected to the centrifugal fan 20. The control board is fixed to the structural air intake base 10 or inside the component cavity, and the control board is configured with three core operating modes: In performance mode, the control board maximizes the fan speed to prioritize the cooling needs of hardware under high load. In purification mode, the control board increases the fan speed to the set range to maximize the clean air output rate and prioritize the purification of indoor air. In silent mode, the control board limits the fan's maximum speed, keeping the fan noise below the target acoustic threshold, while maintaining sufficient airflow to ensure positive pressure within the component cavity, achieving basic dust prevention and purification. In an optional implementation, the control board is also connected to an environmental sensing device, such as one or more of a PM2.5 sensor, a TVOC sensor, or a temperature sensor, which can detect indoor air quality and hardware temperature in real time. The control board automatically adjusts the speed of the centrifugal fan 20 based on the detection data to achieve intelligent operation. The environmental sensor data (including PM2.5 readings, TVOC levels, and internal temperature) from the air quality sensor can optionally be reported to the host system or an external monitoring service via an external power supply connection, providing users with continuous visibility into chassis performance and indoor air quality.

[0048] In this embodiment, in the default operating configuration, the fan speed is directly managed by the fan controller via a standard PWM or voltage signal, allowing the chassis fan to respond to component temperature in the same way as any conventional chassis fan. This configuration does not require input from optional environmental sensors and represents the minimum configuration for normal operation.

[0049] In an alternative implementation, a computer chassis configured as a small form factor (SFF) chassis of 20 liters or less is provided, wherein the structure's air intake base 10 houses a single large-diameter centrifugal fan 20.

[0050] In an alternative embodiment, a computer chassis, configured as an ATX chassis, wherein the structural air intake base 10 accommodates multiple centrifugal fans 20 and supports filter elements with increased frontal area.

[0051] In an alternative embodiment, a computer chassis is configured for rack mounting, wherein the structural air intake base 10 faces the front or bottom of the rack unit to provide filtered positive pressure airflow to the electronic components mounted in the rack.

[0052] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0053] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A computer chassis with integrated air purification function, characterized in that, Includes a chassis body (50), which includes a structural air intake base (10), an internal frame (51), and a box panel (52); The structural air intake base (10) is supported below the internal frame (51) and fixedly connected to the internal frame (51), forming the load-bearing chassis of the chassis body (50). The air intake base (10) of the structure has an integrally defined sealed internal pressure stabilizing cavity, and the box plate (52) is surrounded on the outside of the internal frame (51). The internal frame (51) and the box plate (52) are enclosed to form a component cavity for accommodating computer hardware components. The sealed internal pressure-stabilizing cavity has an air inlet for receiving ambient air and an air outlet connected to the component cavity. A filter and purification component is provided between the air inlet and the air outlet, so that ambient air can only enter the sealed internal pressure stabilizing chamber through the air inlet and the filter and purification component, and then be delivered to the component chamber through the air outlet, forming a zero bypass pressure stabilizing chamber. The sealed internal pressure-stabilizing chamber and the component chamber work together to form a bottom-in, top-out positive pressure air passage architecture, so that the static pressure in the component chamber is always higher than the ambient air pressure, and the airflow in all connecting parts between the component chamber and the external environment is discharged to the outside.

2. The computer chassis with integrated air purification function according to claim 1, characterized in that, The structural air intake base (10) is a single die-cast integral structure, forming a seamless and airtight sealed internal pressure stabilizing cavity; or the structural air intake base (10) is a multi-part splicing assembly, which is spliced ​​together by welding, bolting, or bonding or interlocking to form a seamless and airtight sealed internal pressure stabilizing cavity.

3. The computer chassis with integrated air purification function according to claim 1, characterized in that, The filtration and purification assembly includes a filtration execution unit, which includes a removable filter element (12) and a filter track that is correspondingly provided to the air inlet and fixed in the sealed internal pressure stabilizing chamber. The removable filter element (12) can be slidably installed in the filter track.

4. The computer chassis with integrated air purification function according to claim 3, characterized in that, The surface of the removable filter element (12) is provided with a flexible peripheral sealing gasket (16), which forms an initial mechanical seal structure when the filter element is inserted into the filter track.

5. The computer chassis with integrated air purification function according to claim 1, characterized in that, The filtration and purification assembly also includes a power drive unit, which includes at least one centrifugal fan (20) located in the sealed internal pressure stabilizing chamber. The centrifugal fan (20) is fixed in the sealed internal pressure stabilizing chamber by a mounting bracket (22). The centrifugal fan (20) is a high static pressure radial fan, and its static pressure is sufficient to drive the airflow through the filtration and purification assembly and maintain the positive pressure in the assembly chamber. If multiple centrifugal fans (20) are configured, the multiple centrifugal fans (20) are arranged in parallel or in series in the sealed internal pressure stabilizing chamber.

6. The computer chassis with integrated air purification function according to claim 3, characterized in that, The removable filter element (12) is equipped with a composite filter medium, and the removable filter element (12) also integrates an activated carbon layer for adsorbing volatile organic compounds.

7. The computer chassis with integrated air purification function according to claim 1, characterized in that, The panel (52) is a solid, non-perforated panel used to block uncontrolled air intake paths.

8. The computer chassis with integrated air purification function according to claim 5, characterized in that, The sealed internal pressure stabilizing chamber and the outlet of the centrifugal fan (20) are provided with a rotatable air guide device (30). The rotatable air guide device (30) includes a guide body that is rotatably installed at the outlet of the centrifugal fan (20). The guide body has an asymmetrical air outlet that is eccentrically set relative to the fan outlet. The orientation of the asymmetrical air outlet is adjusted synchronously with the rotation of the guide body to guide the filtered air to the target area in the component cavity.

9. The computer chassis with integrated air purification function according to claim 1, characterized in that, A shielding cavity is configured inside the sealed internal pressure stabilizing cavity, between the filter purification component and the air outlet. A UVC LED module (40) is provided in the shielding cavity. The light-emitting surface of the UVC LED module (40) faces the airflow channel of the sealed internal pressure stabilizing cavity. The UVC LED module (40) is equipped with a safety interlocking mechanism. The safety interlocking mechanism includes a normally closed trigger switch linked to the box plate (52) and an on / off contact linked to the power supply line of the centrifugal fan (20). The normally closed trigger switch and the on / off contact are connected in series in the power supply circuit of the UVC LED module (40).

10. The computer chassis with integrated air purification function according to claim 5, characterized in that, It also includes a control board electrically connected to the centrifugal fan (20), the control board being configured with a performance mode that prioritizes hardware cooling, a purification mode that prioritizes room air purification, and a silent mode that maintains positive pressure while limiting noise; the control board is also connected to an environmental sensor for automatically adjusting the speed of the centrifugal fan (20) based on the detection data.

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