Airflow cooling structure and cabinet

Abstract

This utility model discloses a heat dissipation structure and a cabinet. The heat dissipation structure includes a shell and an air guide component. The shell is provided with an air outlet, a main air duct, multiple air inlets and multiple air ducts. The air inlets, air ducts, main air ducts and air outlets are connected in sequence. The number and position of the air inlets are adapted to the heat source settings, and the distance between different air inlets and their corresponding heat sources is the same. The air guide component is located at the air inlet and is suitable for guiding the airflow of the main air duct and air inlets out of the shell. By setting corresponding air inlets and air ducts for each heat source, the hot air exhaust process near the independent heat source does not interfere with each other during the air guiding process. The hot air will also not come into contact with the cold air (airflow with a lower temperature than the hot air) in other locations in the cabinet, reducing the thermal short-circuit effect in the cabinet, greatly improving the cooling effect inside the cabinet, and ensuring the stability of the temperature fluctuation inside the cabinet.

Description

Technical Field

[0001] This utility model relates to the field of cabinet heat dissipation equipment technology, and in particular to a heat dissipation structure and cabinet. Background Technology

[0002] CPU (Central Processing Unit) test cabinets typically contain multiple CPU test fixtures, on which the CPU to be tested is mounted. During testing, the CPU and the electronic components in the CPU test fixtures generate a large amount of heat, affecting the lifespan of the electronic components in the CPU test cabinet and the test results of the CPU.

[0003] In response, existing technologies propose a solution to exhaust heat from the CPU testing cabinet by installing fans on the side walls of the cabinet. However, this solution involves fixing the fan positions relative to the multiple CPUs, which can easily cause disordered mixing of hot and cold airflows within the cabinet, resulting in thermal short circuits and poor cooling performance. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a heat dissipation structure and cabinet that can simultaneously guide heat from multiple heat sources into the main air duct for centralized exhaust through the air inlet duct, avoiding disorderly heat dissipation of heat from different heat sources within the cabinet and preventing thermal short circuits, thereby improving the heat dissipation effect inside the cabinet.

[0005] On one hand, this utility model embodiment provides a heat dissipation structure for heat dissipation of a server rack, the server rack including a plurality of mounting brackets arranged sequentially along a first direction, the mounting brackets being provided with heat sources, including; The housing is provided with an air outlet, a main air duct, multiple air inlets and multiple air outlets. The air inlets, air inlets, main air ducts and air outlets are connected in sequence. The number and position of the air inlets are adapted to the heat source settings, and the distance between each air inlet and its corresponding heat source is the same. An air guide assembly, located at the air inlet, is adapted to draw airflow from the main air duct and the air inlet duct out of the housing.

[0006] According to some embodiments of the present invention, the main air duct extends from bottom to top, the air inlet duct is connected to the side of the main air duct, and the lengths of the different air inlets ducts are the same. The height of the air outlet in the vertical direction is higher than the height of any one of the air inlets.

[0007] According to some embodiments of the present invention, the air inlet duct includes an arc-shaped section, the first end of the arc-shaped section is connected to the main air duct, the arc-shaped section is tangent to the main air duct, and the air flowing out of the first end of the arc-shaped section has the same flow direction as the air flowing in the main air duct.

[0008] According to some embodiments of the present invention, the housing includes an air inlet and a main body, the air inlet being provided with the air inlet duct, and the main body being provided with the main air duct; The upper shell wall of the air inlet is connected to the main body in an arc transition, and the lower shell wall of the air inlet is connected to a guide plate with an arc cross section. The guide plate and the upper shell wall enclose the arc segment.

[0009] According to some embodiments of the present invention, the air inlet is provided with an installation notch, which is located on the air inlet side; The airflow cooling structure also includes a sealing connection plate, which is detachably connected to the mounting notch so that the shape of the air inlet can be changed by replacing different types of the sealing connection plate.

[0010] According to some embodiments of the present invention, the side wall of the air inlet portion away from the main body portion extends with a raised edge facing the center of the air inlet channel, and the raised edge is provided with a plurality of positioning posts perpendicular to the air inlet; the side wall of the air inlet portion is provided with a plurality of first connecting holes. The sealing connection plate includes a connection plate and a guide plate. The guide plate is perpendicular to the connection plate and has guide holes adapted to the number and position of the positioning pins. The connection plate has a second connection hole adapted to the shape and position of the first connection hole.

[0011] According to some embodiments of the present invention, a baffle portion is provided inside the housing near the air outlet, the baffle portion being adapted to position the air guide assembly and prevent the air guide assembly from entering the main air duct.

[0012] According to some embodiments of the present invention, the baffle portion is set at an acute angle to the extension direction of the main air duct.

[0013] According to some embodiments of the present invention, the air guiding assembly includes a fan and a protective net, wherein the protective net and the baffle are located on both sides of the fan along the blowing direction of the fan.

[0014] On the other hand, this utility model embodiment also provides a cabinet, including the heat dissipation structure described above.

[0015] The present invention has at least the following beneficial effects: by setting corresponding air inlets and air ducts for each heat source, the hot air outlet process near the independent heat source does not interfere with each other during the air guiding process. The hot air will also not come into contact with the cold air (airflow with a lower temperature than the hot air) in other locations in the cabinet, reducing the thermal short-circuit effect in the cabinet, greatly improving the cooling effect inside the cabinet, and ensuring the stability of temperature fluctuations inside the cabinet.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the heat dissipation structure according to an embodiment of the present invention; Figure 2 for Figure 1 A magnified view of part A in the middle; Figure 3 This is a front view of the heat dissipation structure of this utility model embodiment; Figure 4 For along Figure 3 A cross-sectional view of the mid-section line BB.

[0018] Figure label: 100. Shell; 110. Air outlet; 120. Main body; 121. Main air duct; 130. Air inlet; 131. Air inlet duct; 1311. Arc-shaped section; 1312. Curved edge; 1313. Positioning post; 140. Air inlet; 150. Guide plate; 160. Baffle section; 200. Air guide assembly; 210. Fan; 220. Protective net; 300. Sealing connection plate; 310. Connection plate; 320. Guide plate. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first," "second," etc., are used in the description, they are only for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0022] In the description of this utility model, unless otherwise explicitly defined, the terms "setting", "installation", "connection", etc. should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in combination with the specific content of the technical solution.

[0023] Before introducing the heat dissipation structure of the present utility model embodiment, it is necessary to introduce the cabinet to which the heat dissipation structure of the present utility model embodiment is applicable. The cabinet includes multiple mounting racks arranged sequentially along the first direction (Z direction in the figure). A heat source is provided on the mounting rack. For example, when the cabinet is used for CPU testing, a CPU test fixture can be placed on the mounting rack. The heat source is the CPU that generates heat during the CPU testing process and the electronic components on the CPU test fixture.

[0024] Please refer to Figure 1 , Figure 3 and Figure 4 As shown, this embodiment discloses a heat dissipation structure, including a housing 100 and an air guide assembly 200. The housing 100 is provided with an air outlet 110, a main air duct 121, multiple air inlets 131 and multiple air inlets 140. The air inlets 140, air inlets 131, main air ducts 121 and air outlet 110 are connected in sequence. The number and position of the air inlets 140 are adapted to the heat source setting, and the distance between different air inlets 140 and their corresponding heat sources is the same. The air guide assembly 200 is disposed at the air inlet 140 and is suitable for drawing the airflow of the main air duct 121 and air inlets 131 out of the housing 100.

[0025] According to the airflow cooling structure of this utility model embodiment, the airflow cooling structure is installed in the cabinet, the air outlet 110 is connected to the outside, the air inlet 140 faces the heat source in the cabinet, the air guide component 200 is activated, and the hot air near the heat source outside the air inlet 140 is led out of the cabinet through the air inlet 140, the air inlet duct 131, the main air duct 121 and the air outlet 110. During the airflow process, the hot air from multiple heat sources enters their corresponding air inlet duct 131 simultaneously.

[0026] According to the airflow cooling structure of this utility model embodiment, by setting corresponding air inlets 140 and air ducts 131 for each heat source, the hot air outlet process near the independent heat source does not interfere with each other during the airflow process. The hot air will also not come into contact with the cold air (airflow with a lower temperature than the hot air) in other locations in the cabinet, reducing the thermal short-circuit effect in the cabinet, greatly improving the cooling effect inside the cabinet, and ensuring the stability of temperature fluctuations inside the cabinet.

[0027] In this embodiment, the housing 100 is provided with three air inlets 131. Of course, the number of air inlets 131 can be adjusted adaptively based on the number of heat sources inside the cabinet.

[0028] In some embodiments, combined with Figure 1 As shown, the main air duct 121 extends from bottom to top, the air inlet duct 131 is connected to the side of the main air duct 121, and the lengths of different air inlets 131 are the same; the height of the air outlet 110 in the vertical direction is higher than the height of any one of the air inlets 140.

[0029] In this embodiment, by controlling the length of different air inlets 131 to be the same, the temperature of the airflow entering the main air duct 121 in each air inlet 131 is kept as close as possible. This prevents the airflow with unbalanced temperature from generating eddies and disturbances in the main air duct 121, which would cause some hot air to be drawn back into the air inlet 131 and collide with the airflow entering from the air inlet 140. Furthermore, the hot air flows in from the lower air inlets 140, merges into the main air duct 121 and moves upward, and is finally discharged from the highest air outlet 110. The flow path is coordinated and unidirectional, avoiding large-scale airflow collisions inside the main air duct 121, reducing noise and improving heat dissipation.

[0030] In this embodiment, "extending from bottom to top" can be extending along the vertical direction or extending at an acute angle to the vertical direction, such as 30 degrees or 45 degrees.

[0031] In other embodiments, the horizontal height of the air outlet 110 may be set lower than that of part of the air inlet 140.

[0032] In some embodiments, combined with Figure 1 , Figure 3 and Figure 4 As shown, the air inlet duct 131 includes an arc-shaped section 1311. The first end of the arc-shaped section 1311 is connected to the main air duct 121, and the arc-shaped section 1311 is tangent to the main air duct 121. The airflow from the first end of the arc-shaped section 1311 flows in the same direction as the airflow within the main air duct 121. The arc-shaped section 1311 ensures a smooth transition of the hot air from the air inlet duct 131 into the main air duct 121, avoiding large-scale airflow collisions within the main air duct 121.

[0033] In some embodiments, combined with Figure 1 , Figure 3 and Figure 4 As shown, the housing 100 includes an air inlet 130 and a main body 120. The air inlet 130 is provided with an air inlet duct 131, and the main body 120 is provided with a main air duct 121. The upper shell wall of the air inlet 130 is connected to the main body 120 in an arc transition. The lower shell wall of the air inlet 130 is connected to a guide plate 150 with an arc cross section. The guide plate 150 and the upper shell wall enclose an arc segment 1311. This ensures that the wall thickness of the guide plate 150 and the side walls (including the upper shell wall and the lower shell wall) of the air inlet 130 are close while forming the arc segment 1311, which facilitates the processing and manufacturing of the airflow heat dissipation structure (such as sheet metal and stamping).

[0034] In some embodiments, combined with Figure 1 and Figure 2 As shown, the air inlet 130 is provided with an installation notch located on the side of the air inlet 140; the airflow cooling structure also includes a sealing connection plate 300, which is detachably connected to the installation notch so that the shape of the air inlet 140 can be changed by replacing different types of sealing connection plates 300.

[0035] It should be noted that, in order to ensure the heat dissipation effect of the heat source in the rack, an air intake device can be installed above the heat source in the rack to draw in the hot air near the heat source and discharge it from the exhaust port on the side of the air intake device to the air intake 140 of the air-guiding heat dissipation structure.

[0036] In the CPU test cabinet, different CPUs under test usually correspond to different specifications of CPU test fixtures. There is interference between the CPU test fixture and the air inlet 130. By opening installation notches at the corresponding positions in the interference area and replacing different sealing connection plates 300, the compatibility with different specifications of CPU test fixtures is ensured, and the sealing effect between the air intake device and the air inlet 140 is also ensured.

[0037] In some embodiments, combined with Figure 1 and Figure 2 As shown, the side wall of the air inlet 130 away from the main body 120 extends towards the center of the air inlet duct 131 with a raised edge 1312. The raised edge 1312 is provided with a plurality of positioning posts 1313 perpendicular to the air inlet 140. The side wall of the air inlet 130 is provided with a plurality of first connecting holes. The sealing connecting plate 300 includes a connecting plate 310 and a guide plate 320. The guide plate 320 is perpendicular to the connecting plate 310. The guide plate 320 is provided with guide holes that match the number and position of the positioning posts 1313. The connecting plate 310 is provided with second connecting holes that match the shape and position of the first connecting holes.

[0038] In this embodiment, during installation, the sealing connecting plate 300 is first moved into the air inlet duct 131, and then moved towards the air inlet 140. During the movement, the guide hole aligns with the positioning post 1313, and the first connecting hole and the second connecting hole are aligned and fixed with bolts or screws to fix the sealing connecting plate 300 to the installation notch of the air inlet 130. The cooperation of the guide hole and the positioning post 1313 greatly reduces the installation difficulty of the sealing connecting plate 300.

[0039] In some embodiments, combined with Figure 3 and Figure 4 As shown, a baffle portion 160 is provided inside the housing 100 near the air outlet 110. The baffle portion 160 is suitable for positioning the air guide assembly 200 and preventing the air guide assembly 200 from entering the main air duct 121. The baffle portion 160 positions the air guide assembly 200, making it more convenient for workers to install the guide assembly.

[0040] In some embodiments, combined with Figure 3 and Figure 4 As shown, the baffle portion 160 is set at an acute angle to the extension direction of the main air duct 121. It can be understood that, when the volume of the air guiding assembly 200 is the same, the inclined baffle portion 160 and the air guiding assembly 200 can effectively compress the width of the main air duct 121, which makes it easier to reduce the overall width of the cabinet for installing the airflow cooling structure.

[0041] In some embodiments, combined with Figure 3 and Figure 4 As shown, the air guide assembly 200 includes a fan 210 and a protective net 220. The protective net 220 and the baffle portion 160 are located on both sides of the fan 210 along the blowing direction of the fan 210. The protective net 220 effectively isolates debris from the external environment, preventing debris from damaging the fan 210 or falling into the main air duct 121 and affecting the heat dissipation effect.

[0042] On the other hand, this utility model embodiment also provides a cabinet, including the heat dissipation structure as described in the above embodiment.

[0043] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A heat dissipation structure for heat dissipation of a server rack, the server rack comprising a plurality of mounting brackets arranged sequentially along a first direction, wherein a heat source is disposed on each mounting bracket, characterized in that, include: The housing (100) is provided with an air outlet (110), a main air duct (121), multiple air inlets (131) and multiple air inlets (140). The air inlets (140), the air inlets (131), the main air duct (121) and the air outlet (110) are connected in sequence. The number and position of the air inlets (140) are adapted to the heat source setting, and the distance between each air inlet (140) and its corresponding heat source is the same. An air guide assembly (200) is provided at the air inlet (140) and is adapted to draw the airflow from the main air duct (121) and the air inlet duct (131) out of the housing (100).

2. The heat dissipation structure according to claim 1, characterized in that, The main air duct (121) extends from bottom to top, and the air inlet duct (131) is connected to the side of the main air duct (121), and the lengths of the air inlet ducts (131) are the same. The height of the air outlet (110) in the vertical direction is higher than the height of any one of the air inlets (140).

3. The heat dissipation structure according to claim 2, characterized in that, The air inlet duct (131) includes an arc-shaped section (1311), the first end of which is connected to the main air duct (121). The arc-shaped section (1311) is tangent to the main air duct (121), and the air flowing out of the first end of the arc-shaped section (1311) has the same flow direction as the air flowing in the main air duct (121).

4. The heat dissipation structure according to claim 3, characterized in that, The housing (100) includes an air inlet (130) and a main body (120). The air inlet (130) is provided with the air inlet duct (131), and the main body (120) is provided with the main air duct (121). The upper shell wall of the air inlet (130) is connected to the main body (120) in an arc transition. The lower shell wall of the air inlet (130) is connected to a guide plate (150) with an arc cross section. The guide plate (150) and the upper shell wall enclose the arc segment (1311).

5. The heat dissipation structure according to claim 4, characterized in that, The air inlet (130) is provided with an installation notch, which is located on the side of the air inlet (140); The airflow cooling structure also includes a sealing connection plate (300), which is detachably connected to the mounting notch so that the shape of the air inlet (140) can be changed by replacing different types of the sealing connection plate (300).

6. The heat dissipation structure according to claim 5, characterized in that, The side wall of the air inlet (130) at the end away from the main body (120) extends towards the center of the air inlet channel (131) with a raised edge (1312), and the raised edge (1312) is provided with a plurality of positioning posts (1313) perpendicular to the air inlet (140); the side wall of the air inlet (130) is provided with a plurality of first connecting holes. The sealing connection plate (300) includes a connection plate (310) and a guide plate (320). The guide plate (320) is perpendicular to the connection plate (310). The guide plate (320) is provided with guide holes adapted to the number and position of the positioning pins (1313). The connection plate (310) is provided with a second connection hole adapted to the shape and position of the first connection hole.

7. The heat dissipation structure according to any one of claims 1 to 6, characterized in that, The housing (100) has a baffle (160) on the side near the air outlet (110) inside. The baffle (160) is adapted to position the air guide assembly (200) and prevent the air guide assembly (200) from entering the main air duct (121).

8. The heat dissipation structure according to claim 7, characterized in that, The baffle portion (160) is set at an acute angle to the extension direction of the main air duct (121).

9. The heat dissipation structure according to claim 7, characterized in that, The air guide assembly (200) includes a fan (210) and a protective net (220), wherein the protective net (220) and the baffle (160) are located on both sides of the fan (210) along the blowing direction of the fan (210).

10. A server rack, characterized in that, It includes the heat dissipation structure as described in any one of claims 1 to 9.

Images