Air duct and case
By designing a gradually expanding inclined air duct and an inclined fan, the problems of uneven airflow distribution and blocked air ducts in existing air ducts are solved, achieving a more efficient heat dissipation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-04-10
AI Technical Summary
The existing air duct and fan design results in poor airflow distribution, and the vertical installation of the fan inside the chassis can easily lead to airflow blockage, affecting heat dissipation.
Design a gradually expanding inclined air duct, combining an inclined fan and air guide, and forming a gradually expanding flow channel through the design of a small air inlet and a large air outlet. An inclined air guide channel and heat dissipation channel are set in the chassis to avoid vertical obstruction and optimize the airflow path.
It improves the efficiency and fluidity of airflow, enhances the heat dissipation effect inside the chassis, ensures unobstructed airflow, and improves heat dissipation efficiency.
Smart Images

Figure CN224111526U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of air guiding, especially to the field of heat dissipation, and particularly to an air guiding cylinder and a case. BACKGROUND
[0002] An air guiding cylinder is a device that guides airflow to flow in a specific direction and is widely used in the field of ventilation and heat dissipation. Its core function is to optimize the airflow path and improve the heat dissipation efficiency of equipment. The main application fields include, but are not limited to, industrial equipment heat dissipation, such as mine ventilation, cooling tower exhaust, central air conditioning system, which realizes equipment cooling by guiding airflow. Electronic equipment heat dissipation: in computer cases, server cases and other equipment, the air guiding cylinder is used to guide the airflow of the fan to directly act on high-heat components (such as CPU and graphics card), thereby improving the heat dissipation efficiency.
[0003] The existing air guiding cylinder is mainly composed of a horn-shaped or conical structure. The fan and the air guiding cylinder are generally arranged in parallel. The fan and the air guiding cylinder work cooperatively through a vertical air guiding channel, so that the airflow driven by the fan passes through the channel and diffuses to the target area, realizing efficient airflow guiding.
[0004] However, the existing air guiding cylinder and fan have significant defects in structural design and airflow optimization. The two ends of the existing air guiding cylinder are generally arranged in parallel. The fan is installed at one end of the air guiding cylinder. Under the driving of the fan, the airflow can only be blown vertically along the channel of the air guiding cylinder, resulting in poor distribution effect of the entering airflow, which affects the ventilation use of the air guiding cylinder.
[0005] In addition, the fan in the existing case is generally directly installed on the inner side of the case body, resulting in a vertical installation of the fan and the internal space of the case. When the fan is driven, the airflow entering the internal space of the case is easily blocked by the internal components of the case (such as graphics cards), causing blockage of the vertical air duct, which is not conducive to the heat dissipation of the case and affects the heat dissipation effect of the case. UTILITY MODEL CONTENTS
[0006] The utility model aims to solve the above defects and provide an air guiding cylinder and a case to solve the technical problems of poor distribution effect of the entering airflow in the existing air guiding cylinder, affecting the ventilation use of the air guiding cylinder, and vertical installation of the fan in the existing case causing blockage of the air duct, affecting the heat dissipation effect of the case.
[0007] The utility model is achieved by the following way:
[0008] A kind of air duct, including cylinder, one end of the cylinder extends gradually to the other end of the cylinder, the inside of the cylinder is formed with the air guide channel that is communicated, the one end of the cylinder is formed with the installation part that is arranged obliquely, the other end of the cylinder is formed with the connecting part, the connecting column is arranged outside the cylinder, the end of the connecting column extends to the surface of the installation part and is flush with the surface of the installation part, the one end of the air guide channel that extends to the installation part is formed with the air inlet, and the other end of the air guide channel that extends to the connecting part is formed with the air outlet, the opening of the air inlet is less than the opening of the air outlet.
[0009] Further in the above description, the connecting hole that is communicated is formed in the connecting part, and the cylinder is fixedly connected by the connecting hole.
[0010] The connecting part is used to contact with the outside by being arranged, and is connected with the outside by bolt passing through the connecting hole.
[0011] Further in the above description, the connecting part is arranged horizontally and flush, and an included angle is formed between the connecting part and the installation part.
[0012] By the oblique arrangement of the installation part, the installation part and the connecting part form an acute angle, when the connecting part is connected with the external fixing part, the air guide channel is arranged obliquely, further ensuring the flow of air flow, reducing the blocking of the vertically arranged air guide channel, and affecting the flow of air flow.
[0013] Further in the above description, the threaded hole is arranged on the connecting column, and the connecting column is used to connect the air duct by the threaded hole.
[0014] The air duct is arranged on the installation part, so that the air duct is arranged obliquely, specifically, the fan is installed on an air duct with slope, the angle of air flow transported by the fan is changed, the air flow is smoothly transported along the air guide channel, and the heat dissipation efficiency is enhanced.
[0015] A case includes a box body, an accommodating cavity is formed in the inside of the box body, a heat dissipation channel is arranged in the accommodating cavity, one end of the heat dissipation channel extends to the top of the box body to form an air inlet end, and the other end of the heat dissipation channel extends to the side of the machine to form an air outlet end, the air duct is connected to the air inlet end of the heat dissipation channel, the connecting frame for installing the air duct is arranged in the box body, the air duct is connected to the connecting frame through the connecting hole of the connecting part, the air guide channel of the air duct is communicated with the heat dissipation channel, the air inlet of the air duct extends to the top of the box body, the air duct is connected with the air duct for transporting cold air into the accommodating cavity through the connecting column, and the air outlet end of the heat dissipation channel is connected with the air outlet for discharging the hot air in the accommodating cavity.
[0016] Further in the above description, the top of the box body is connected with the screen, a plurality of screen holes communicated with the accommodating cavity are formed in the screen, and the support frame is connected to the screen through buckling.
[0017] Further in the above description, the side of the box is connected with an exhaust net, and an exhaust fan is installed on the inner side of the exhaust net.
[0018] The isolation of external foreign matter is realized through the set isolation net and exhaust net, and air circulation in the box is realized through the mesh of the isolation net and exhaust net, so that the temperature in the box is prevented from being too high.
[0019] Further in the above description, the connecting frame is installed in the containing cavity, and the connecting frame is used to separate the containing cavity to form an air inlet chamber, and the air guide cylinder and the air guide fan are arranged in the air inlet chamber.
[0020] The air inlet chamber is used to install the air guide cylinder and the air guide fan, so that the external cold air is introduced into the air inlet chamber through the driving of the air guide fan and enters the containing cavity through the air guide passage, so that the electronic components in the box are air-cooled and heat-dissipated, and the effect of air cooling and heat dissipation of the box is enhanced.
[0021] The beneficial effects of the utility model are as follows:
[0022] 1. The gradually expanding inclined structure design of the cylinder body, the design of the small air inlet and the large air outlet, the gradually expanding flow channel formed in the air guide passage of the air guide cylinder, the small air inlet conducive to the concentrated introduction of air flow, the large air outlet conducive to the full diffusion of air flow in the flowing process, the non-vertical mounting base provided by the inclined installation part for the external fan, the angle formed between the fan and the connecting part, compared with the vertical mounting mode of the traditional fan, the design can further improve the air flow introduction efficiency and the flowability of the air guide cylinder;
[0023] 2. The air guide cylinder is arranged in the box, the air guide fan is in contact with the installation part to form an inclined installation, the air guide cylinder is additionally arranged at the air inlet end of the heat dissipation passage to form a gradually expanding air flow introduction structure, the contraction section of the air guide cylinder can accelerate the air inlet speed at the top, the expansion section can optimize the air flow diffusion angle, the cold air can uniformly fill the whole heat dissipation passage, and the installation of the air guide fan has an inclined angle through the inclination of the installation part, the vertical blockage of the air flow by the electronic components in the box is effectively avoided, the air guide passage and the heat dissipation passage form a continuous air flow conveying path, and the ventilation and heat dissipation effect of the components in the box is enhanced. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 It is a top view angle overall structure schematic view of the air guide cylinder in the embodiment;
[0025] Figure 2 It is a bottom view angle overall structure schematic view of the air guide cylinder in the embodiment;
[0026] Figure 3It is the schematic view of the installation connection of the air duct and the air guide fan in the embodiment;
[0027] Figure 4 It is the schematic view of the front view angle overall structure of the cabinet in the embodiment;
[0028] Figure 5 It is the schematic view of the rear view angle overall structure of the cabinet in the embodiment;
[0029] Figure 6 It is the schematic view of the internal structure of the cabinet in the embodiment;
[0030] Figure 7 It is the schematic view of the flow direction of the heat dissipation channel in the embodiment;
[0031] The reference signs in the drawing are as follows: 1-cabinet, 2-containing cavity, 3-heat dissipation channel, 4-inlet end, 5-exhaust end, 6-connection frame, 7-air guide fan, 8-exhaust fan, 9-separation net, 10-supporting net frame, 11-exhaust net, 12-inlet chamber;
[0032] 100-air duct, 101-cylinder, 102-air guide channel, 103-mounting part, 104-connection part, 105-connection column, 106-inlet, 107-outlet, 108-connection hole. DETAILED DESCRIPTION
[0033] The utility model will be described in further detail in combination with the drawings and specific implementation.
[0034] In the embodiment, refer to Figures 1-7 , the specific implementation of:
[0035] An air duct, comprising a cylinder 101, one end of the cylinder 101 extends to the other end of the cylinder 101 in a gradually expanding manner, an air guide channel 102 is formed in the inside of the cylinder 101, an inclined mounting part 103 is formed at one end of the cylinder 101, a connection part 104 is formed at the other end of the cylinder 101, a connection column 105 is arranged outside the cylinder 101, the end of the connection column 105 extends to the surface of the mounting part 103 and is flush with the surface of the mounting part 103, an inlet 106 is formed at one end of the air guide channel 102 extending to the mounting part 103, and an outlet 107 is formed at the other end of the air guide channel 102 extending to the connection part 104, and the opening of the inlet 106 is smaller than the opening of the outlet 107.
[0036] A connection hole 108 is formed in the connection part 104, and the cylinder 101 is fixedly connected through the connection hole 108. The connection part 104 is used for contacting the outside, and a bolt passes through the connection hole 108 to connect with the outside.
[0037] The connecting part 104 is horizontally flush arranged, and an included angle is formed between the connecting part 104 and the mounting part 103. The connecting column 105 is provided with a threaded hole, and the connecting column 105 is used for connecting the air guide fan 7 through the threaded hole.
[0038] The mounting part 103 is arranged in an inclined manner, so that the mounting part 103 and the connecting part 104 form an acute angle. When the connecting part 104 is connected with the external fixing part, the air guide channel 102 is arranged in an inclined manner, so as to further ensure the flow of the air flow and reduce the blocking of the air guide channel 102 arranged in a vertical manner, and affect the flow and delivery of the air flow.
[0039] Specifically, compared with the vertical arrangement of the air guide fan 7 in the prior art, the mounting part 103 arranged in an inclined manner on the air guide cylinder 100 is used for connecting the air guide fan 7, so that the air guide fan 7 has an inclined angle, and the flow of the air flow is improved, and the direct blocking of the air guide fan 7 by external objects is prevented.
[0040] The air guide fan 7 is arranged on the mounting part 103, so that the air guide fan 7 is arranged in an inclined manner. Specifically, the fan is arranged on the air guide cylinder 100 with an inclination, the angle of the air flow delivered by the fan is changed, the delivery of the air flow along the air guide channel 102 is smooth and unobstructed, and the heat dissipation efficiency is enhanced.
[0041] In the embodiment, the pressure difference effect is formed by the difference in the cross-sectional area between the narrowed air inlet 106 and the enlarged air outlet 107, so that the air flow diffusion coverage range of the air outlet 107 is expanded while the stability of the air flow is maintained. The non-vertical mounting angle optimizes the docking mode of the air guide fan 7 and the air guide cylinder 100, so that the initial air flow generated by the air guide fan 7 is more smoothly introduced along the axis direction of the air guide channel 102.
[0042] In the embodiment, a case includes a box body 1, an accommodating cavity 2 is formed in the box body 1, a heat dissipation channel 3 is arranged in the accommodating cavity 2, one end of the heat dissipation channel 3 extends to the top of the box body 1 to form an air inlet end 4, the other end of the heat dissipation channel 3 extends to the side of the machine to form an air outlet end 5, the air inlet end 4 of the heat dissipation channel 3 is connected with an air guide cylinder 100, a connecting frame 6 for mounting the air guide cylinder 100 is arranged in the box body 1, the air guide cylinder 100 is connected with the connecting frame 6 through the connecting hole 108 of the connecting part 104, the air guide channel 102 of the air guide cylinder 100 is communicated with the heat dissipation channel 3, the air inlet 106 of the air guide cylinder 100 extends to the top of the box body 1, the air guide cylinder 100 is connected with an air guide fan 7 for delivering cold air into the accommodating cavity 2 through the connecting column 105, and the air outlet end 5 of the heat dissipation channel 3 is connected with an air outlet fan 8 for discharging hot air in the accommodating cavity 2.
[0043] The top of the box 1 is connected with a screen 9, the screen 9 is formed with screen holes communicated with the accommodating cavity 2, and the screen 9 is connected with a support net rack 10 through buckling.
[0044] The screen 9 and the exhaust screen 11 can isolate external foreign matters, and the screen holes in the screen 9 and the exhaust screen 11 can make the air in the box 1 flow, preventing the temperature in the box 1 from being too high.
[0045] The connecting rack 6 is installed in the accommodating cavity 2, and the connecting rack 6 is used to separate the accommodating cavity 2 to form an air inlet chamber 12, and the air duct 100 and the air blower 7 are arranged in the air inlet chamber 12. The air inlet chamber 12 is arranged to install the air duct 100 and the air blower 7, so that the external cold air enters the air inlet chamber 12 through the driving of the air blower 7 and enters the accommodating cavity 2 through the air guide channel 102, thereby cooling and heat dissipation of the electronic components in the box 1, and enhancing the effect of air cooling and heat dissipation of the box.
[0046] In the embodiment, the air blower 7 and the exhaust fan 8 are both composed of a fan.
[0047] The specific installation and use structure in the embodiment is as follows:
[0048] Through the gradually expanding inclined structure design of the cylinder body 101, and the design of the gradually expanding air inlet 106 and the air outlet 107, the air guide channel 102 in the air duct 100 forms a gradually expanding flow channel, the smaller air inlet 106 is conducive to the concentration of air flow, and the larger air outlet 107 promotes the full diffusion of air flow in the flow process, ensuring the smoothness of the whole process of air flow from the air inlet 106 to the air outlet 107. At the same time, the installation part 103 arranged obliquely provides a non-vertical mounting base for the air blower 7, and the air blower 7 is connected with the threaded hole of the connecting column 105 through bolts, so that an included angle is formed between the fan and the connecting part 104. Compared with the vertical installation mode of the traditional fan, this design can further improve the air flow guiding efficiency and flowability of the air duct 100.
[0049] The air duct 100 is installed in the accommodating cavity 2 of the box body 1 through the connecting frame 6, meanwhile, the air duct 100 is contacted with the installing part 103 of the air duct 100 and is connected with the connecting column 105 through the bolt, so that the air duct 100 is formed to be inclined, the air duct 100 is added in the air inlet end 4 of the heat dissipation channel 3, the gradually expanding air flow introduction structure is formed, the contraction section of the air duct 100 can accelerate the top air inlet speed, the expansion section can optimize the air flow diffusion angle, so that the cold air can be filled in the whole heat dissipation channel 3, meanwhile, the installing part 103 is inclined, so that the air duct 100 is installed to have the inclined angle, under the drive of the air duct 100, the air flow penetrates into the air inlet chamber 12 and enters into the accommodating cavity 2 along the air duct 102, the air duct 100 is installed to be inclined, so that the vertical block of the air flow in the box body 1 can be effectively avoided, the air duct 102 and the heat dissipation channel 3 form the continuous air flow conveying path, the exhaust fan 8 is used to guide the hot air in the accommodating cavity 2, so that the ventilation and heat dissipation effect of the components in the box body 1 is enhanced.
[0050] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application is disclosed in the preferred embodiment, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the above disclosed technical content without departing from the technical solution of the present application, and any simple modification, equivalent change and modification of the above embodiment belong to the scope of the present application.
Claims
1. A wind scoop comprising a scoop body, characterised in that: One end of the barrel gradually extends to the other end of the barrel, the inside of the barrel forms a through air guide channel, one end of the barrel forms an obliquely arranged mounting portion, the other end of the barrel forms a connecting portion, a connecting column is arranged outside the barrel, the end of the connecting column extends to the surface of the mounting portion and is flush with the surface of the mounting portion, the air guide channel forms an air inlet at the end extending to the mounting portion, and the air guide channel forms an air outlet at the other end extending to the connecting portion, the opening of the air inlet is smaller than the opening of the air outlet.
2. A bellows as claimed in claim 1, characterized in that: The connecting portion is provided with a through connecting hole, and the barrel is fixedly connected through the connecting hole.
3. A bellows as claimed in claim 2, wherein: The connecting portion is horizontally arranged, and an included angle is formed between the connecting portion and the mounting portion.
4. The air duct according to any one of claims 1-3, characterized in that: The connecting column is provided with a threaded hole, and the connecting column is used for connecting the air guide fan through the threaded hole.
5. A cabinet comprising a cabinet body, an accommodation cavity being formed in an interior of the cabinet body, characterized by: The accommodating cavity is provided with a heat dissipation channel, one end of the heat dissipation channel extends to the top of the box to form an air inlet end, and the other end of the heat dissipation channel extends to the side of the machine to form an air outlet end, the air guide barrel of any one of claims 1-4 is connected to the air inlet end of the heat dissipation channel, the box is provided with a connecting frame for mounting the air guide barrel, the air guide barrel is connected to the connecting frame through the connecting hole of the connecting portion, the air guide channel of the air guide barrel is in communication with the heat dissipation channel, the air inlet of the air guide barrel extends to the top of the box, the air guide fan for conveying cold air into the accommodating cavity is connected to the air guide barrel through the connecting column, and the air outlet end of the heat dissipation channel is connected to the exhaust fan for discharging hot air in the accommodating cavity.
6. The cabinet of claim 5, wherein: The top of the box is connected with a screen, the screen is provided with a plurality of screen holes in communication with the accommodating cavity, and the support frame is connected to the screen through buckling.
7. The cabinet of claim 5, wherein: The side of the box is connected with an exhaust screen, and the exhaust fan is installed on the inner side of the exhaust screen.
8. The cabinet of any one of claims 5-7, wherein: The connecting frame is installed in the accommodating cavity, and the connecting frame is used for spacing the accommodating cavity to form an air inlet chamber, and the air guide barrel and the air guide fan are arranged in the air inlet chamber.