Suction type heat dissipation case structure
By incorporating an exhaust fan at the top of the chassis and a multi-layered filter at the bottom, the design solves the problems of low heat dissipation efficiency and poor dust prevention in traditional chassis, achieving more efficient heat dissipation and dust prevention, and ensuring the stable operation of electronic components.
Patent Information
- Application Number
- CN202423033174.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-10
AI Technical Summary
Traditional chassis cooling methods result in short airflow paths, making it difficult for heat to mix fully, leading to localized high temperatures that affect the stable operation and lifespan of electronic components.
An exhaust fan is installed at the top of the chassis to create an upward airflow path, and a multi-layer filter plate is installed at the bottom of the chassis. The layout of strip-shaped air intake holes and circular heat dissipation holes enables the air to be fully mixed and filtered.
It improves heat dissipation efficiency, reduces localized high temperatures, extends the lifespan of electronic components, and effectively prevents hair and large particles from entering the chassis.
Smart Images

Figure CN223501359U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chassis technology, specifically to a chassis structure with suction-type heat dissipation. Background Technology
[0002] A computer chassis is a container used to house and protect internal electronic components in electronic devices. It is typically made of materials such as metal or plastic. Inside the chassis is a fan, whose primary function is to dissipate heat from the interior of the chassis to maintain the electronic components within a suitable operating temperature range. Traditional chassis cooling methods usually rely on the airflow generated by the fan to draw heat from the inside and dissipate it into the external environment.
[0003] Patent CN220962326U discloses a heat dissipation chassis, including a chassis with a control panel fixedly installed at the front, a motherboard fixedly installed inside the chassis, a side maintenance door movably installed on one side of the chassis, and a rear cover fixedly installed at the rear. Multiple air intake channels are opened within the rear cover, and an air exhaust channel is opened within the rear cover above the air intake channels. A cooling fan is fixedly installed on the rear cover next to the air exhaust channel, and the cooling fan is electrically connected to the motherboard via a connecting cable. A side cover is also fixedly installed on one side of the rear cover, and a dustproof frame is movably installed on one side of the side cover. The side cover and the dustproof frame, with a dust filter fixedly installed inside, simultaneously protect the air intake channels and the cooling fan from dust. Furthermore, the pull-up / down dustproof frame, in conjunction with a brush roller and a collection box, allows for quick cleaning and collection of dust from the dust filter inside the dustproof frame, reducing the difficulty of cleaning the dust filter.
[0004] The aforementioned existing technology uses a cooling fan to expel heat from the chassis through an exhaust duct. However, it has certain design flaws. Specifically, since the exhaust duct and multiple intake ducts are all located on the rear cover, this layout causes outside air to flow rapidly upwards after entering the chassis through the intake ducts when the cooling fan is working. The airflow path is short, and the heat inside the chassis cannot be fully mixed with the air. This airflow pattern results in almost no airflow in the space in front of the rear cover, making it difficult for the heat inside the chassis to be effectively expelled with the airflow. Especially in the area near the front of the chassis, uneven airflow distribution can easily lead to localized high temperatures, which may adversely affect the stable operation and lifespan of electronic components. In view of this, we propose a suction-type cooling chassis structure. Utility Model Content
[0005] The purpose of this invention is to provide a suction-type heat dissipation chassis structure to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] The chassis structure with suction-type heat dissipation includes a chassis body. The bottom of the chassis body has multiple strip-shaped air intake holes arranged at equal intervals front and back. The top of the chassis body has two circular heat dissipation holes arranged symmetrically front and back. Exhaust fans are installed at the top of the chassis body and at the positions of the two circular heat dissipation holes. The top of the chassis body is equipped with a protective cover, and the two exhaust fans are located inside the protective cover. The top of the protective cover has multiple air outlet holes arranged in a matrix. The exhaust fans are electrically connected to the motherboard inside the chassis through wires. The exhaust fans draw air out of the chassis body, thereby drawing outside air into the chassis body through the strip-shaped air intake holes. An upward airflow is generated inside the chassis body, thus forming a heat dissipation channel. The heat inside the chassis can enter the protective cover through the circular heat dissipation holes with the airflow and finally be discharged to the outside through the air outlet holes.
[0008] The bottom of the box is equipped with a dustproof component, which includes a frame plate fixedly connected to the bottom of the box. Multiple strip-shaped air inlets are connected to the frame plate. The frame plate is provided with a first filter plate and a second filter plate from bottom to top, which filters the air entering the box twice, effectively preventing hair and large particles from entering the box.
[0009] Preferably, the bottom of the outer wall of the protective cover is provided with a frame-shaped base, which is detachably connected to the top of the box by bolts, so as to facilitate the disassembly and assembly of the protective cover.
[0010] Preferably, a frame-shaped iron sheet is embedded at the top of the protective cover and near the outer edge. A dustproof net is provided at the top of the protective cover to prevent hair and large particles from entering the protective cover. A soft magnetic strip is provided at the bottom edge of the dustproof net, and the soft magnetic strip is magnetically connected to the frame-shaped iron sheet to facilitate the disassembly and cleaning of the dustproof net.
[0011] Preferably, the frame plate is provided with feet on both the left and right sides of its bottom to support the frame plate, thereby allowing outside air to enter the frame plate. The bottom of the feet is provided with anti-slip pads to increase friction and thus improve stability.
[0012] Preferably, the lower middle part of both sides of the inner wall of the frame plate is provided with a first U-shaped positioning plate, and the first filter screen plate is inserted between the two first U-shaped positioning plates to facilitate the positioning of the first filter screen plate.
[0013] Preferably, a second U-shaped positioning plate is provided on the upper middle part of both the left and right sides of the inner wall of the frame plate, and the second filter screen is inserted between the two second U-shaped positioning plates to facilitate the positioning of the second filter screen.
[0014] Preferably, the filter hole size of the first filter plate is larger than that of the second filter plate, and both the first and second filter plates are provided with pull plates on their front sides to facilitate the user to pull the first and second filter plates outward.
[0015] Preferably, the front side of the frame plate has two operating openings for the first filter plate and the second filter plate to pass through, respectively. The inner walls of the two operating openings are bonded with rubber liners, and the inner walls of the two rubber liners are tightly fitted to the outer walls of the first filter plate and the second filter plate, respectively, to improve the stability of the first filter plate and the second filter plate and prevent the first filter plate and the second filter plate from moving outward when no external force is applied.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. The suction-type cooling chassis structure, by setting an exhaust fan on the top of the chassis, forms an airflow from bottom to top inside the chassis. The layout of the strip-shaped air intake and the circular heat dissipation holes makes the airflow path longer, and the heat can be fully mixed with the air, so that the heat inside the chassis can be more effectively discharged with the airflow, thereby improving the heat dissipation efficiency, reducing local high temperature phenomena, and contributing to the stable operation and life extension of electronic components.
[0018] 2. The suction-type cooling chassis structure includes a dustproof component consisting of a frame plate, a first filter plate, and a second filter plate, which filters the air entering the chassis twice, effectively preventing hair and large particles from entering the chassis and improving the dustproof effect.
[0019] 3. The suction-type cooling chassis structure features a detachable protective cover attached to the top of the chassis for easy installation and removal; the dust filter is magnetically attached to the frame iron plate via a soft magnetic strip, facilitating dust filter installation, removal, and cleaning; the support feet support the frame plate to improve stability; and the anti-slip pads increase friction, further enhancing stability.
[0020] 4. The suction-type heat dissipation chassis structure has pull plates on the front of the first and second filter plates, which makes it convenient for users to pull the filter plates outward; the inner wall of the operation port is bonded with a rubber liner, which fits tightly with the outer wall of the filter plate, improving the stability of the filter plate and preventing it from moving outward without external force. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the overall second-view structure of this utility model;
[0023] Figure 3This is a partial assembly structure diagram of the present invention;
[0024] Figure 4 This is a schematic diagram of the assembly structure of the protective cover and dustproof net in this utility model;
[0025] Figure 5 This is a schematic diagram of the assembly structure of the housing and dustproof components in this utility model;
[0026] In the diagram: 1. Housing; 10. Strip-shaped air inlet; 11. Circular heat dissipation hole; 2. Exhaust fan; 3. Protective cover; 30. Air outlet; 31. Frame-shaped base; 32. Frame-shaped iron sheet; 4. Dustproof mesh; 40. Soft magnetic strip; 5. Dustproof component; 50. Frame-shaped plate; 500. First U-shaped positioning plate; 501. Second U-shaped positioning plate; 502. Operation port; 51. First filter screen; 52. Second filter screen; 53. Support leg; 54. Anti-slip pad; 55. Rubber lining; 56. Pull plate. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0029] Please see Figures 1-5 This utility model provides a technical solution:
[0030] The chassis structure with suction cooling includes a chassis 1. The bottom of the chassis 1 has multiple strip-shaped air intake holes 10 arranged at equal intervals. The top of the chassis 1 has two circular heat dissipation holes 11 arranged symmetrically. Exhaust fans 2 are installed at the top of the chassis 1 and at the positions of the two circular heat dissipation holes 11. The top of the chassis 1 is equipped with a protective cover 3. The two exhaust fans 2 are located inside the protective cover 3. The top of the protective cover 3 has multiple exhaust holes 30 arranged in a matrix. The exhaust fans 2 are electrically connected to the motherboard inside the chassis through wires. The exhaust fans 2 draw air out of the chassis 1, so that outside air is drawn into the chassis 1 through the strip-shaped air intake holes 10. An upward airflow is generated inside the chassis 1, thus forming a heat dissipation channel. The heat inside the chassis can enter the protective cover 3 through the circular heat dissipation holes 11 with the airflow, and finally be discharged to the outside through the exhaust holes 30.
[0031] The bottom of the housing 1 is provided with a dustproof component 5. The dustproof component 5 includes a frame plate 50 fixedly connected to the bottom of the housing 1. Multiple strip-shaped air inlets 10 are connected to the frame plate 50. The frame plate 50 is provided with a first filter plate 51 and a second filter plate 52 from bottom to top. The air entering the housing 1 is filtered twice to effectively prevent hair and large particles from entering the housing 1.
[0032] In this embodiment, a frame-shaped base 31 is provided at the bottom of the outer wall of the protective cover 3. The frame-shaped base 31 is detachably connected to the top of the box 1 by bolts, which facilitates the disassembly and assembly of the protective cover 3.
[0033] Specifically, a frame-shaped iron plate 32 is embedded at the top of the protective cover 3 and near the outer edge. A dustproof net 4 is provided at the top of the protective cover 3. The dustproof net 4 can prevent hair and large particles from entering the protective cover 3. A soft magnetic strip 40 is provided at the bottom edge of the dustproof net 4. The soft magnetic strip 40 is magnetically connected to the frame-shaped iron plate 32, which facilitates the disassembly and cleaning of the dustproof net 4.
[0034] Furthermore, the frame plate 50 is provided with support feet 53 on both the left and right sides of its bottom to support the frame plate 50, so that outside air can enter the frame plate 50. The bottom of the support feet 53 is provided with anti-slip pads 54 to increase friction and thus improve stability.
[0035] Furthermore, the lower middle part of the left and right sides of the inner wall of the frame plate 50 is provided with a first U-shaped positioning plate 500, and the first filter plate 51 is inserted between the two first U-shaped positioning plates 500 to facilitate the positioning of the first filter plate 51.
[0036] Furthermore, a second U-shaped positioning plate 501 is provided on the upper middle part of both sides of the inner wall of the frame plate 50, and the second filter plate 52 is inserted between the two second U-shaped positioning plates 501 to facilitate the positioning of the second filter plate 52.
[0037] Furthermore, the filter hole size of the first filter plate 51 is larger than that of the second filter plate 52. Both the first filter plate 51 and the second filter plate 52 are provided with pull plates 56 on their front sides, so that users can easily pull the first filter plate 51 and the second filter plate 52 outward.
[0038] Furthermore, the front side of the frame plate 50 has two operation ports 502 for the first filter plate 51 and the second filter plate 52 to pass through respectively. The inner walls of the two operation ports 502 are bonded with rubber liners 55. The inner walls of the two rubber liners 55 are tightly fitted to the outer walls of the first filter plate 51 and the second filter plate 52 respectively, which improves the stability of the first filter plate 51 and the second filter plate 52 and prevents the first filter plate 51 and the second filter plate 52 from moving outward when no external force is applied.
[0039] In this embodiment, the suction-type cooling chassis structure is used by placing the chassis in a suitable position, ensuring that the strip-shaped air intake 10 is located at the bottom to allow outside air to enter. The power is connected, and the motherboard and exhaust fan 2 inside the chassis are ensured to be working properly. The chassis is then started, and the exhaust fan 2 begins to operate, drawing air out of the chassis 1, creating an upward airflow. After being filtered by the first filter plate 51 and the second filter plate 52, the outside air enters the chassis 1 through the strip-shaped air intake 10, effectively preventing hair and large particles from entering the chassis 1. Inside, hot air enters the protective cover 3 through the circular heat dissipation hole 11 and is finally discharged to the outside through the air outlet 30. The dustproof screen 4, the first filter screen 51 and the second filter screen 52 should be cleaned regularly to ensure heat dissipation and dust prevention. If the dustproof screen 4 needs to be cleaned, the magnetic connection between the soft magnetic strip 40 and the frame-shaped iron sheet 32 can be used to facilitate the disassembly and cleaning of the dustproof screen 4. If the first filter screen 51 and the second filter screen 52 need to be replaced, the first filter screen 51 and the second filter screen 52 can be pulled outwards using the pull plate 56 for easy replacement.
[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A suction-type heat dissipation chassis structure, comprising a chassis (1), characterized in that: The bottom of the box (1) is provided with multiple strip-shaped air inlets (10) arranged equidistantly in front and behind. The top of the box (1) is provided with two circular heat dissipation holes (11) arranged symmetrically in front and behind. The top of the box (1) and the two circular heat dissipation holes (11) are provided with exhaust fans (2). The top of the box (1) is provided with a protective cover (3). The two exhaust fans (2) are located inside the protective cover (3). The top of the protective cover (3) is provided with multiple air outlets (30) arranged in a matrix. The bottom of the box (1) is provided with a dustproof component (5). The dustproof component (5) includes a frame plate (50) fixedly connected to the bottom of the box (1). The multiple strip-shaped air inlets (10) are connected to the frame plate (50). The frame plate (50) is provided with a first filter plate (51) and a second filter plate (52) from bottom to top.
2. The chassis structure for suction-type heat dissipation according to claim 1, characterized in that: The bottom of the outer wall of the protective cover (3) is provided with a frame-shaped base (31), which is detachably connected to the top of the box (1) by bolts.
3. The chassis structure for suction-type heat dissipation according to claim 1, characterized in that: A frame-shaped iron sheet (32) is embedded at the top of the protective cover (3) and near the outer edge. A dustproof net (4) is provided at the top of the protective cover (3). A soft magnetic strip (40) is provided at the bottom edge of the dustproof net (4). The soft magnetic strip (40) is magnetically connected to the frame-shaped iron sheet (32).
4. The chassis structure for suction-type heat dissipation according to claim 1, characterized in that: The bottom of the frame plate (50) is provided with support feet (53) on both the left and right sides, and the bottom of the support feet (53) is provided with anti-slip pads (54).
5. The chassis structure for suction-type heat dissipation according to claim 1, characterized in that: The lower middle part of the left and right sides of the inner wall of the frame plate (50) is provided with a first U-shaped positioning plate (500), and the first filter plate (51) is inserted between the two first U-shaped positioning plates (500).
6. The chassis structure for suction-type heat dissipation according to claim 1, characterized in that: The upper middle part of the left and right sides of the inner wall of the frame plate (50) is provided with a second U-shaped positioning plate (501), and the second filter plate (52) is inserted between the two second U-shaped positioning plates (501).
7. The chassis structure for suction-type heat dissipation according to claim 1, characterized in that: The filter hole size of the first filter plate (51) is larger than that of the second filter plate (52). The front side of both the first filter plate (51) and the second filter plate (52) is provided with a pull plate (56).
8. The chassis structure for suction-type heat dissipation according to claim 1, characterized in that: The front side of the frame plate (50) has two operation ports (502) for the first filter plate (51) and the second filter plate (52) to pass through respectively. The inner walls of the two operation ports (502) are bonded with rubber liners (55), and the inner walls of the two rubber liners (55) are tightly fitted to the outer walls of the first filter plate (51) and the second filter plate (52) respectively.
Citation Information
Patent Citations
A heat dissipation chassis
CN220962326U