Heat dissipation devices and parallel heat dissipation systems

Abstract

The present application provides a heat dissipation device and a parallel heat dissipation system, which relate to the technical field of heat dissipation systems and are used to solve the technical problem of the inconvenience of assembly and maintenance of parallel heat dissipation systems. The heat dissipation device includes a heat dissipation component and a blocking component. The heat dissipation component includes a shell and fan blades. The fan blades are arranged in the shell, and a first side wall of the shell has hollow air holes. The blocking component is located outside the shell and is arranged on the first side wall. The blocking component includes an elastic expansion sheet. When the elastic expansion sheet is in an elastically contracted state, the fan blades are connected to the external environment through the hollow air holes. When the elastic expansion sheet is in an elastically extended state, the elastic expansion sheet closes the hollow air holes. By arranging the blocking component on the heat dissipation component, the blocking component is always closed when the heat dissipation component is replaced, and the backflow airflow cannot affect the fan blades of the heat dissipation component, and the fan blades continue to remain in a static state. The blocking component will not be opened until the heat dissipation component is installed, completely avoiding the phenomenon of fan blade reversal during server system operation and maintenance.

Description

Technical Field

[0001] This application relates to the field of heat dissipation system technology, and in particular to a heat dissipation device and a parallel heat dissipation system. Background Technology

[0002] A parallel cooling system consists of multiple fans connected in parallel. During normal server operation, this system allows for hot-swappable fan maintenance. This means that if one fan fails, it can be replaced while the server is powered on, without affecting server operation or the normal operation of other fans. To replace the faulty fan, first remove it from the mounting bay, then insert the new fan into the bay.

[0003] However, after the faulty fan is removed from the mounting compartment, the large pressure difference between the inside and outside of the parallel cooling system, caused by the other fans still working normally, will result in airflow backflow in the empty mounting compartment. During the insertion of the new fan, the backflow will drive the new fan to reverse at high speed. If the new fan's own anti-reverse ability is insufficient to overcome the reverse torque, the new fan will continue to reverse after being powered on and will not be able to operate normally, making the assembly and maintenance of the parallel cooling system inconvenient. Summary of the Invention

[0004] In view of the above problems, this application provides a heat dissipation device and a parallel heat dissipation system to solve the problem of inconvenient assembly and maintenance of parallel heat dissipation systems in related technologies.

[0005] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0006] A first aspect of this application provides a heat dissipation device, which includes a heat dissipation component and a blocking component. The heat dissipation component includes a housing and a fan blade. The fan blade is disposed inside the housing, and a first side wall of the housing has an air hole. The blocking component is located outside the housing and is disposed on the first side wall. The blocking component includes an elastic telescopic piece. When the elastic telescopic piece is in an elastically contracted state, the fan blade communicates with the external environment through the air hole. When the elastic telescopic piece is in an elastically extended state, the elastic telescopic piece closes the air hole.

[0007] In one possible implementation, the blocking assembly further includes a fixed shaft and a limiting member. The fixed shaft is disposed on the first sidewall and is parallel to the plane containing the first sidewall. The elastic telescopic sheet is wound around the fixed shaft, with one end connected to the fixed shaft and the other end capable of moving away from or close to the fixed shaft. When the elastic telescopic sheet is in an elastically extended state, the other end of the elastic telescopic sheet moves away from the fixed shaft. When the elastic telescopic sheet is in an elastically contracted state, the other end of the elastic telescopic sheet moves close to the fixed shaft and is wound around it. The limiting member is connected to the other end of the elastic telescopic sheet, and a limiting buckle matching the limiting member is also provided on the first sidewall.

[0008] In one possible implementation, the blocking assembly further includes a fixed housing, the outer peripheral wall of which is provided with a first connecting buckle, and the first side wall is provided with a first connecting groove that matches the first connecting buckle; the fixed housing has a receiving chamber, in which the fixed shaft and the elastic telescopic piece are both disposed; in a first direction, the fixed housing includes a first limiting groove and a second limiting groove disposed opposite to each other, and the fixed shaft is provided with a first limiting block and a second limiting block at its two ends along its axial direction, the first limiting block matching the first limiting groove and the second limiting block matching the second limiting groove; the fixed housing further includes a clearance through hole, through which the other end of the elastic telescopic piece extends out of the receiving chamber.

[0009] In one possible implementation, the limiting member includes a connecting plate and a limiting plate connected vertically. The connecting plate is connected to the other end of the elastic telescopic piece, and the limiting plate is disposed outside the receiving cavity through the clearance through hole. The limiting plate includes a first end face and a second end face disposed opposite to each other in a second direction. The first end face is close to the connecting plate and abuts against the outer peripheral wall of the fixed housing. The limiting plate matches the limiting buckle. The second direction is perpendicular to the first direction.

[0010] In one possible implementation, the limiting buckle includes a mating component, a connecting shaft, a buckle body, and a return spring; the mating component is disposed on the first sidewall and has a first connecting hole; the buckle body has a second connecting hole; the axial direction of the connecting shaft is parallel to the plane containing the first sidewall, and the connecting shaft is connected to both the first connecting hole and the second connecting hole; the return spring is sleeved on the connecting shaft; the buckle body includes a first end and a second end, the second connecting hole is disposed between the first end and the second end, the first end matches the limiting plate, and the second end is rotatable around the connecting shaft; when the second end is subjected to an external force and rotates toward the first sidewall, the first end moves away from the limiting plate; when the external force is released from the second end, the return spring resets, the second end rotates away from the first sidewall, and the first end engages with the limiting plate.

[0011] In one possible implementation, the first end face is perpendicular to the plane containing the first sidewall, the second end face is inclined relative to the first end face, and the thickness of the limiting plate gradually decreases in the direction away from the connecting plate.

[0012] In one possible implementation, the first end includes a snap-fit ​​end face and a guide end face, the snap-fit ​​end face being perpendicular to the plane containing the first sidewall and abutting against the first end face; in the second direction, the guide end face is located above the snap-fit ​​end face and is inclined relative to the snap-fit ​​end face, and the guide end face matches the second end face.

[0013] A second aspect of this application provides a parallel heat dissipation system, which includes a plurality of heat dissipation devices described above, and a housing. The housing includes a plurality of mounting compartments, and each heat dissipation device is correspondingly disposed in one of the mounting compartments. The mounting compartment includes a first inlet and a second inlet that are opposite each other along a third direction. The first inlet and the second inlet are connected. The heat dissipation device is disposed in the mounting compartment along the direction from the first inlet toward the second inlet. The first sidewall is close to the second inlet.

[0014] In one possible implementation, each of the installation compartments has an abutment on its second sidewall near the second inlet, and the first sidewall of the heat dissipation device has a limiting buckle that matches the limiting member. The buckle body of the limiting buckle has a second end, and the abutment abuts against the second end.

[0015] In one possible implementation, a control connector is provided on the second sidewall of each installation compartment near the second inlet, and each control connector is matched with a heat dissipation component connector of one of the heat dissipation components. The control connector is used to control the operation of the heat dissipation component. While the abutment abuts against the second end, the control connector is electrically connected to the heat dissipation component connector.

[0016] The heat dissipation device and parallel heat dissipation system of this application embodiment include a heat dissipation component comprising a housing and fan blades. The fan blades are disposed within the housing, and the first side wall of the housing has air vents. A blocking component of the heat dissipation device is located outside the housing and is disposed on the first side wall. The blocking component includes an elastic telescopic plate. When the elastic telescopic plate is in an elastically contracted state, the fan blades communicate with the external environment through the air vents. When the elastic telescopic plate is in an elastically extended state, the elastic telescopic plate closes the air vents. By setting a blocking component on the heat dissipation component, the blocking component remains closed during normal server operation and when the heat dissipation component is replaced, preventing backflow air from affecting the fan blades of the heat dissipation component, and keeping the fan blades stationary. The blocking component is only opened after the heat dissipation component is installed, completely avoiding the phenomenon of fan blade reversal during server system maintenance. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application 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 this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of a parallel heat dissipation system provided in the prior art;

[0019] Figure 2 Schematic diagram of the heat dissipation device provided in the embodiments of this application Figure 1 ;

[0020] Figure 3 Schematic diagram of the heat dissipation device provided in the embodiments of this application Figure 2 ;

[0021] Figure 4 Schematic diagram of the heat dissipation device provided in the embodiments of this application Figure 3 ;

[0022] Figure 5 This is a schematic diagram of the structure of the heat dissipation component of the heat dissipation device provided in the embodiments of this application;

[0023] Figure 6This is a schematic diagram of the structure of the blocking component of the heat dissipation device provided in the embodiments of this application;

[0024] Figure 7 This is a schematic diagram of the structure of the elastic telescopic sheet of the heat dissipation device provided in the embodiments of this application;

[0025] Figure 8 This is a schematic diagram of the structure of the limiting member of the heat dissipation device provided in the embodiments of this application;

[0026] Figure 9 Schematic diagram of the structure of the fixed housing of the heat dissipation device provided in the embodiments of this application Figure 1 ;

[0027] Figure 10 Schematic diagram of the structure of the fixed housing of the heat dissipation device provided in the embodiments of this application Figure 2 ;

[0028] Figure 11 This is a schematic diagram of the limiting buckle of the heat dissipation device provided in the embodiments of this application;

[0029] Figure 12 This is a schematic diagram of the structure of the clip body of the heat dissipation device provided in the embodiments of this application;

[0030] Figure 13 This is a schematic diagram of the structure of the enclosure of the parallel heat dissipation system provided in the embodiments of this application;

[0031] Figure 14 A schematic diagram of the parallel heat dissipation system provided in the embodiments of this application. Figure 1 ;

[0032] Figure 15 A schematic diagram of the parallel heat dissipation system provided in the embodiments of this application. Figure 2 ;

[0033] Figure 16 A schematic diagram of the parallel heat dissipation system provided in the embodiments of this application. Figure 3 .

[0034] Explanation of reference numerals in the attached figures:

[0035] 100: Heat dissipation components;

[0036] 101: Housing; 102: Limiting buckle; 103: Heat dissipation component connector;

[0037] 1011: First sidewall; 1012: Hole opening; 1013: First connecting groove; 1014: Positioning groove; 1021: Mating part; 1022: Connecting shaft; 1023: Return spring; 1024: Buckle body;

[0038] 10211: First connecting hole; 10241: Second connecting hole; 10242: First end; 10243: Second end; 10244: Snap-fit ​​end face; 10245: Guide end face;

[0039] 200: Blocking component;

[0040] 201: Elastic telescopic sheet; 202: Fixed shaft; 203: Limiting component; 204: Fixed outer shell; 205: Fixing component; 210: Anti-backflow sheet;

[0041] 2011: One end; 2012: The other end; 2013: Third connecting hole; 2021: First limiting block; 2022: Mounting through groove; 2031: Connecting plate; 2032: Limiting plate; 2033: Fourth connecting hole; 2034: Second end face; 2041: First outer shell; 2042: Second outer shell; 2043: Receiving chamber; 2044: First connecting buckle; 2045: Positioning protrusion; 2046: Clearance through hole;

[0042] 20411: Second connecting groove; 20412: First left limiting groove; 20421: Second connecting buckle; 20422: First right limiting groove;

[0043] 300: Box;

[0044] 301: Mounting compartment; 302: Circuit board; 303: Control connector; 304: Abutment part; 310: Fan mounting box; 311: Fan mounting chamber. Detailed Implementation

[0045] As described in the background section, parallel cooling systems in related technologies suffer from inconvenient assembly and maintenance. Research by technicians has revealed that this problem arises because parallel cooling systems consist of multiple fans connected in parallel. While a parallel cooling system allows for hot-swappable fan maintenance during normal server operation—meaning that if one fan fails, it can be replaced while the server is powered on without affecting server operation or the normal operation of other fans—the replacement process involves first removing the faulty fan from the mounting bay and then inserting a new fan. However, after removing the faulty fan, the large pressure difference between the inside and outside of the parallel cooling system, caused by the other fans still operating normally, leads to airflow reversal within the empty mounting bay. During the insertion of the new fan, this reversal drives the new fan to reverse direction at high speed. If the new fan's anti-reversal capability is insufficient to overcome the reversal torque, it will continue to reverse direction after being powered on, failing to operate normally. This results in inconvenient assembly and maintenance of the parallel cooling system, while also affecting its heat dissipation.

[0046] Please refer to Figure 1To address the airflow recirculation problem, existing parallel cooling systems incorporate an anti-backflow plate 210 within the fan mounting chamber 311 of the fan mounting housing 310. The anti-backflow plate 210 can be a stainless steel spring or a sheet metal component with a spring mechanism. After a faulty fan is removed, the anti-backflow plate 210 prevents airflow recirculation within the fan mounting chamber 311. When a fan module is inserted into the fan mounting chamber 311 through its opening, the fan module comes into contact with the anti-backflow plate 210. As the fan module is inserted, the anti-backflow plate 210 is pushed off the rear side wall (…). Figure 1 The rear sidewall (as shown) opposite the opening gradually moves towards the left sidewall ( Figure 1 As shown in the diagram (left side wall), after the fan module is inserted into place, the anti-backflow plate 210 will be completely in contact with the left side wall. When the fan module is pulled out of the fan mounting chamber 311 through the opening, the anti-backflow plate 210 will gradually lose its abutment force and rebound. After the fan module is completely pulled out, the anti-backflow plate 210 will reset to completely block the fan mounting chamber 311 and prevent airflow backflow.

[0047] However, in the above-mentioned parallel cooling system, during the process of inserting the new fan module into the fan mounting chamber 311 from the opening of the fan mounting chamber 311, the anti-backflow plate 210 will gradually move towards the left side wall ( Figure 1 As shown in the diagram, the left side wall moves. At this time, the new fan module is not powered on, and the other fans are still working normally. The pressure difference between the inside and outside of the parallel heat dissipation system is large. Airflow backflow will still occur in the fan mounting chamber 311 used to set the new fan module, causing the inserted new fan module to reverse at high speed. Even after the new fan module is powered on, because the new fan module's own anti-reverse ability is insufficient to overcome the reverse torque of the fan, the new fan module will continue to reverse and cannot operate normally.

[0048] To address the aforementioned technical problems, this application provides a heat dissipation device comprising a heat dissipation component and a blocking component. The blocking component is disposed on the heat dissipation component and can seal the air vents of the heat dissipation component, preventing the fan blades of the heat dissipation component from communicating with the external environment through the air vents. When the heat dissipation component is installed into the installation chamber of the parallel heat dissipation system, the blocking component is closed, and the backflow airflow generated in the installation chamber cannot affect the fan blades, preventing the fan blades from reversing. After the heat dissipation component is installed, the blocking component is released, and the fan blades of the heat dissipation component communicate with the external environment through the air vents, and the heat dissipation device begins to operate. In this embodiment of the heat dissipation device, during normal server operation and heat dissipation component replacement, the blocking component remains closed during the insertion of the heat dissipation component into the installation chamber, preventing backflow airflow from affecting the fan blades of the heat dissipation component, and keeping the fan blades stationary. The blocking component is only opened after the heat dissipation component is installed, and the heat dissipation component begins to operate normally, completely avoiding the phenomenon of fan blade reversal during server system maintenance.

[0049] To make the above-mentioned objectives, features, and advantages of the embodiments of this application more apparent and understandable, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0050] This application provides a heat dissipation device, referring to... Figure 2-Figure 4 , Figure 2 For the purposes of this application

[0051] Schematic diagram of the heat dissipation device provided in the example Figure 1 , Figure 3 Schematic diagram of the heat dissipation device 5 provided in the embodiments of this application Figure 2 , Figure 4 Schematic diagram of the heat dissipation device provided in the embodiments of this application Figure 3 ;

[0052] The heat dissipation device includes a heat dissipation component 100, which includes a housing 101 and a fan blade. The fan blade is disposed inside the housing 101. The first side wall 1011 of the housing 101 has a perforated air hole 1012, through which the fan blade communicates with the external environment.

[0053] The heat dissipation device also includes a blocking component 200, which is located outside the housing 101 and is disposed on the first side wall 1011; wherein, the heat dissipation device is placed vertically (e.g., Figure 2-Figure 4As shown in the diagram, the blocking assembly 200 includes an elastic telescopic piece 201, which is detachably mounted on the upper part of the first sidewall 1011. The elastic telescopic piece 201 has two states: elastic contraction and elastic extension. When the elastic telescopic piece 201 is in the elastic contraction state, the elastic extension...

[0054] The blade 201 is completely positioned on the upper part of the first sidewall 1011, without obstructing the air holes 5 1012 on the first sidewall 1011, allowing the fan blades to communicate with the external environment through the air holes 1012; when the elastic extension...

[0055] When the telescopic piece 201 is in an elastically elongated state, the elastic telescopic piece 201 extends to the lower part of the first sidewall 1011 and adheres to the first sidewall 1011, so that the elastic telescopic piece 201 can block the air hole 1012 and seal the air hole 1012, so that the fan blade cannot communicate with the external environment through the air hole 1012.

[0056] 0 In other words, when the heat sink of this application embodiment is installed in the installation compartment of the parallel heat dissipation system...

[0057] When component 100 is in operation, component 200 is closed, and elastic expansion joint 201 is in an elastically extended state (e.g., ...). Figure 4 As shown), the backflow generated inside the installation chamber cannot affect the fan blades, preventing them from reversing; after the heat dissipation assembly 100 is installed, the blocking assembly 200 is released, and the elastic telescopic plate 201 is in position.

[0058] In its elastically contracted state, the fan blades of the heat dissipation component 100 are connected to the external environment through the air vents, and the heat dissipation device begins to operate.

[0059] The heat dissipation device of this application embodiment includes a heat dissipation assembly 100 comprising a housing 101 and fan blades. The fan blades are disposed inside the housing 101, and the first sidewall 1011 of the housing 101 has air holes 1012. The blocking assembly 200 is located outside the housing 101 and is disposed on the first sidewall 1011.

[0060] The blocking component 200 includes an elastic telescopic piece 201. When the elastic telescopic piece 201 is in the elastically contracted 0 state, the fan blades communicate with the external environment through the air vents 1012; when the elastic telescopic piece 201 is in the elastically extended state, the elastic telescopic piece 201 closes the air vents 1012. The heat dissipation device of this embodiment, by setting the blocking component 200 on the heat dissipation component 100, ensures that during normal server operation and when replacing the heat dissipation component 100, the blocking component 200 remains closed during the insertion of the heat dissipation component 100 into the installation compartment. This prevents the backflow airflow from affecting the fan blades of the heat dissipation component 100, keeping the fan blades stationary. Only after the heat dissipation component 100 is installed will the blocking component 200 be opened, and the heat dissipation component 100 begin normal operation, completely avoiding the phenomenon of fan blade reversal during server system maintenance.

[0061] refer to Figures 6-8 , Figure 6 This is a schematic diagram of the structure of the blocking component of the heat dissipation device provided in the embodiments of this application. Figure 7 This is a schematic diagram of the structure of the elastic telescopic plate of the heat dissipation device provided in the embodiments of this application. Figure 8 This is a schematic diagram of the structure of the limiting member of the heat dissipation device provided in the embodiments of this application; in the embodiments of this application, the blocking component 200 may further include a fixed shaft 202, which is disposed on the first sidewall 1011, and the fixed shaft 202 is parallel to the plane where the first sidewall 1011 is located, and the fixed shaft 202 is along... Figure 6 Extending in the X direction as shown, the elastic telescopic piece 201 is wound around the fixed shaft 202; wherein, the elastic telescopic piece 201 includes one end 2011 and the other end 2012, and the fixed shaft 202 is provided with a mounting slot 2022, the one end 2011 of the elastic telescopic piece 201 matches the mounting slot 2022, so that the one end 2011 of the elastic telescopic piece 201 is connected to the fixed shaft 202, and the other end 2012 of the elastic telescopic piece 201 can move away from or near the fixed shaft 202; when the other end 2012 of the elastic telescopic piece 201 is away from the fixed shaft 202, the elastic telescopic piece 201 is in an elastically extended state; when the other end 2012 of the elastic telescopic piece 201 is near the fixed shaft 202, the elastic telescopic piece 201 is in an elastically contracted state; and when the other end 2012 of the elastic telescopic piece 201 is near the fixed shaft 202, the elastic telescopic piece 201 is wound around the fixed shaft 202. The fixed shaft 202 is used to stably mount the elastic telescopic piece 201 onto the first side wall 1011.

[0062] The blocking assembly 200 may further include a limiting member 203, which is connected to the other end 2012 of the elastic telescopic piece 201. A limiting buckle 102 matching the limiting member 203 is also provided at the lower part of the first sidewall 1011. When the elastic telescopic piece 201 is in an elastically extended state, the other end 2012 of the elastic telescopic piece 201 extends towards the lower part of the first sidewall 1011 and adheres to the first sidewall 1011, allowing the elastic telescopic piece 201 to block the air hole 1012 and seal it. Simultaneously, the limiting member 203 is connected to the limiting buckle 102, fixing the other end 2012 of the elastic telescopic piece 201 and preventing the elastic telescopic piece 201 from contracting.

[0063] refer to Figure 5 , Figure 9 and Figure 10 , Figure 5 This is a schematic diagram of the structure of the heat dissipation component of the heat dissipation device provided in the embodiments of this application. Figure 9 Schematic diagram of the structure of the fixed housing of the heat dissipation device provided in the embodiments of this application Figure 1 , Figure 10 Schematic diagram of the structure of the fixed housing of the heat dissipation device provided in the embodiments of this application Figure 2 In this embodiment, the blocking component 200 may further include a fixed housing 204. The outer peripheral wall of the fixed housing 204 is provided with a first connecting buckle 2044, and the first side wall 1011 is provided with a first connecting groove 1013 that matches the first connecting buckle 2044. The first connecting buckle 2044 is connected to the first connecting groove 1013, so that the fixed housing 204 is connected to the first side wall 1011. The outer peripheral wall of the fixed housing 204 is also provided with a positioning protrusion 2045, and the first side wall 1011 is provided with a positioning groove 1014 that matches the positioning protrusion 2045. The connection between the positioning protrusion 2045 and the positioning groove 1014 can facilitate the alignment and connection of the first connecting buckle 2044 and the first connecting groove 1013, so that the fixed housing 204 is connected to the first side wall 1011.

[0064] The fixed housing 204 also has a receiving chamber 2043, in which the fixed shaft 202 and the elastic telescopic piece 201 are both disposed; and in the first direction ( Figure 6 In the X direction shown, the fixed housing 204 includes a first limiting groove and a second limiting groove arranged opposite to each other. The fixed shaft 202 is provided with a first limiting block 2021 and a second limiting block at both ends along its axial direction. The first limiting block 2021 matches the first limiting groove, and the second limiting block matches the second limiting groove, so as to prevent the fixed shaft 202 from shaking in the receiving chamber 2043.

[0065] The fixed housing 204 also includes a clearance through hole 2046, and the other end 2012 of the elastic telescopic piece 201 extends out of the receiving chamber 2043 through the clearance through hole 2046. When the elastic telescopic piece 201 is in an elastically extended state, the other end 2012 of the elastic telescopic piece 201 extends out of the receiving chamber 2043 through the clearance through hole 2046 and extends towards the lower part of the first side wall 1011, so that the elastic telescopic piece 201 can block the air hole 1012 to close the air hole 1012.

[0066] In the above embodiments of this application, the fixed housing 204 is composed of a first housing 2041 and a second housing 2042, and the first housing 2041 and the second housing 2042 are along a third direction ( Figure 6 As shown in the figure, the Y direction (the third direction is perpendicular to the first direction) is set opposite to each other. The first housing 2041 is provided with a second connecting groove 20411, and the second housing 2042 is provided with a second connecting buckle 20421 that matches the second connecting groove 20411, so that the first housing 2041 and the second housing 2042 are connected to form a fixed housing 204.

[0067] The first outer shell 2041 is provided with a first left limiting groove 20412, and the second outer shell 2042 is provided with a first right limiting groove 20422. When the first outer shell 2041 and the second outer shell 2042 are connected, the first left limiting groove 20412 and the first right limiting groove 20422 together form the first limiting groove.

[0068] In the above embodiments of this application, the first connecting buckle 2044, the positioning protrusion 2045, and the clearance through hole 2046 can all be disposed on the first housing 2041. When installing the blocking assembly 200 onto the first sidewall 1011, the first housing 2041 is first connected to the first sidewall 1011, then the fixing shaft 202 and the elastic telescopic piece 201 are installed, and finally the second housing 2042 is connected to the first housing 2041.

[0069] Continue to refer to Figure 8 In the above embodiments of this application, the limiting member 203 may include a vertically connected connecting plate 2031 and a limiting plate 2032. The connecting plate 2031 is connected to the other end 2012 of the elastic telescopic piece 201, and the limiting plate 2032 is matched with the limiting buckle 102 at the lower part of the first side wall 1011. The other end 2012 of the elastic telescopic piece 201 is provided with a third connecting hole 2013, and the connecting plate 2031 is provided with a fourth connecting hole 2033 that matches the third connecting hole 2013. The limiting member 203 also includes a fixing member 205, which is connected to both the third connecting hole 2013 and the fourth connecting hole 2033, so that the connecting plate 2031 is connected to the other end 2012 of the elastic telescopic piece 201.

[0070] The limiting plate 2032 is disposed outside the receiving chamber 2043 through the clearance through hole 2046, and the limiting plate 2032 is in the second direction ( Figure 6 and Figure 8 The Z-direction (the second direction is perpendicular to the first direction) shown includes a first end face and a second end face 2034 disposed opposite to each other, with the first end face close to the connecting plate 2031; when the elastic telescopic piece 201 is in an elastically contracted state, the other end 2012 of the elastic telescopic piece 201 extends out of the receiving chamber 2043 through the avoidance through hole 2046 and abuts against the outer peripheral wall of the fixed housing 204; when the elastic telescopic piece 201 is in an elastically extended state, the other end 2012 of the elastic telescopic piece 201 extends out of the receiving chamber 2043 through the avoidance through hole 2046, extends towards the lower part of the first side wall 1011, and connects with the limiting buckle 102, so that the other end 2012 of the elastic telescopic piece 201 is fixed.

[0071] refer to Figure 11 and Figure 12 , Figure 11 This is a schematic diagram of the limiting buckle of the heat dissipation device provided in the embodiments of this application. Figure 12 This is a schematic diagram of the structure of the snap-on body of the heat dissipation device provided in this application embodiment. In this application embodiment, the limiting snap-on 102 includes a mating part 1021, a connecting shaft 1022, a snap-on body 1024, and a return spring 1023. The mating part 1021 includes a bent structural member, a portion of which is disposed on the first side wall 1011, and the other portion of which is bent in a direction away from the first side wall 1011, and has a first connecting hole 10211. The snap-on body 1024 has a second connecting hole 10241. The axial direction of the connecting shaft 1022 is parallel to the plane where the first side wall 1011 is located. The connecting shaft 1022 is connected to both the first connecting hole 10211 and the second connecting hole 10241, so that the snap-on body 1024 is connected to the mating part 1021.

[0072] Meanwhile, the reset spring 1023 is sleeved on the connecting shaft 1022; the buckle body 1024 includes a first end 10242 and a second end 10243, and a second connecting hole 10241 is disposed between the first end 10242 and the second end 10243. The first end 10242 matches the limiting plate 2032, and the second end 10243 can rotate around the connecting shaft 1022; wherein, when the second end 10243 is rotated toward the first sidewall 1011 by an external force (that is... Figure 11 and Figure 12 As shown in the clockwise direction, the first end 10242 moves away from the limiting plate 2032, and the return spring 1023 is compressed; after the external force applied to the second end 10423 is released, the return spring 1023 returns to its original position, and the return spring 1023 drives the second end 10423 to rotate away from the first sidewall 1011 (that is...). Figure 11 and Figure 12 (In the counterclockwise direction shown), the first end 10242 will approach the first sidewall 1011 and be used to engage the limiting plate 2032, so that the other end 2012 of the elastic telescopic piece 201 is fixed.

[0073] Continue to refer to Figure 8 and Figure 12 In the above embodiments of this application, the limiting plate 2032 is in the second direction ( Figure 8 The Z-direction shown includes a first end face and a second end face 2034 arranged opposite to each other. The first end face is perpendicular to the plane containing the first sidewall 1011, and the second end face 2034 is inclined relative to the first end face. The thickness of the limiting plate 2032 gradually decreases in the direction away from the connecting plate 2031. When the elastic telescopic piece 201 elastically extends and the limiting plate 2032 gradually approaches the limiting buckle 102, the inclined second end face 2034 allows the limiting plate 2032 to smoothly engage with the limiting buckle 102, thus fixing the elastic telescopic piece 201.

[0074] In the above embodiments of this application, the first end 10242 may include a snap-fit ​​end face 10244 and a guide end face 10245. The snap-fit ​​end face 10244 is perpendicular to the plane where the first sidewall 1011 is located, and the snap-fit ​​end face 10244 abuts against the first end face; in the second direction ( Figure 12 In the Z direction shown, the guide end face 10245 is located above the snap-fit ​​end face 10244, and the guide end face 10245 is inclined relative to the snap-fit ​​end face 10244. The guide end face 10245 matches the second end face 2034. When the elastic telescopic piece 201 elastically extends and the limiting plate 2032 gradually approaches the limiting buckle 102, the inclined second end face 2034 and the guide end face 10245 allow the limiting plate 2032 to slide smoothly under the snap-fit ​​end face 10244, so that the snap-fit ​​end face 10244 snaps with the first end face, completing the snap-fit ​​between the limiting plate 2032 and the limiting buckle 102.

[0075] refer to Figure 13 , Figure 13 This is a schematic diagram of the structure of the enclosure of the parallel heat dissipation system provided in this application embodiment; this application embodiment also provides a parallel heat dissipation system, which includes the heat dissipation device described above, and also includes an enclosure 300. The enclosure 300 includes multiple mounting compartments 301, and each heat dissipation device is correspondingly disposed in one mounting compartment 301; each mounting compartment 301 includes a third-direction ( Figure 13 The first and second inlets (shown in the Y direction) are opposite each other, the first and second inlets are connected, and the heat dissipation device is installed in the mounting compartment along the direction from the first inlet toward the second inlet (that is, Figure 13 As shown in the diagram, the first sidewall 1011 is located near the second inlet, positioned from back to front within the installation chamber.

[0076] refer to Figures 14-16 , Figure 14 A schematic diagram of the parallel heat dissipation system provided in the embodiments of this application. Figure 1 , Figure 15 A schematic diagram of the parallel heat dissipation system provided in the embodiments of this application. Figure 2 , Figure 16 A schematic diagram of the parallel heat dissipation system provided in the embodiments of this application. Figure 3 When the heat dissipation component 100 of this application embodiment is installed into the installation compartment 301 of the parallel heat dissipation system, the blocking component 200 is closed, and the elastic telescopic piece 201 is in an elastically extended state (e.g., Figure 14 As shown), the backflow generated within the installation chamber 301 cannot affect the fan blades, preventing them from reversing; after the heat dissipation assembly 100 is installed, the blocking assembly 200 is released, and the elastic telescopic plate 201 is in an elastically contracted state (as shown). Figure 16 As shown, the fan blades of the heat dissipation component 100 are connected to the external environment through air vents, and the heat dissipation device begins to operate. During normal server operation and when the heat dissipation component 100 is being replaced, the blocking component 200 remains closed while the heat dissipation component 100 is being inserted into the installation compartment. The return airflow cannot affect the fan blades of the heat dissipation component 100, and the fan blades remain stationary. Only after the heat dissipation component 100 is installed will the blocking component 200 be opened, and the heat dissipation component 100 will begin normal operation, completely avoiding the phenomenon of fan blade reversal during server system maintenance.

[0077] In this embodiment, each installation compartment 301 has an abutment 304 on its second sidewall near the second inlet, and the abutment 304 abuts against the second end 10243 of the snap-fit ​​body 1024. That is, during the installation of the heat dissipation component 100 into the installation compartment 301 of the parallel heat dissipation system, the blocking component 200 remains closed, and the elastic telescopic piece 201 is in an elastically extended state (e.g., Figure 14 (As shown); when the abutment 304 abuts against the second end 10243 of the buckle body 1024, it indicates that the heat dissipation assembly 100 has been installed. At this time, due to the abutment of the abutment 304, the second end 10243 of the buckle body 1024 will be subjected to external force and rotate towards the first side wall 1011. At the same time, the first end 10242 moves away from the limiting plate 2032, the limiting plate 2032 separates from the limiting buckle 102, the other end 2012 of the elastic telescopic piece 201 is released from fixation, the elastic telescopic piece 201 resets and elastically contracts, and finally winds around the fixed shaft 202. At this time, the fan blades of the heat dissipation assembly 100 can communicate with the external environment through the air holes, and the heat dissipation device starts to operate. The setting of the abutment 304 can realize the synchronous operation of the heat dissipation assembly 100 and the blocking assembly 200, simplifying the installation and maintenance process.

[0078] In the above embodiments of this application, a control connector 303 is provided on the second side wall near the second inlet of each installation compartment 301. Each control connector 303 corresponds to a heat dissipation component connector 103 of a heat dissipation component 100. The control connector 303 is used to control the operation of the heat dissipation component 100. When the abutment 304 abuts against the second end 10243, the control connector 303 is electrically connected to the heat dissipation component connector 103. That is, when the abutment 304 abuts against the second end 10243 of the buckle body 1024, the heat dissipation component connector 103 is electrically connected to the control connector 303. The control connector 303 controls the heat dissipation component 100 to start running. At the same time, due to the abutment of the abutment 304, the limiting plate 2032 separates from the buckle body 1024, the other end 2012 of the elastic telescopic piece 201 is released from fixation, the elastic telescopic piece 201 elastically contracts, and the fan blades of the heat dissipation component 100 can communicate with the external environment through the air holes. The abutment 304 and control connector 303 enable the heat dissipation assembly 100 and the blocking assembly 200 to work synchronously, simplifying the installation and maintenance process.

[0079] In the above embodiments of this application, the housing 300 also includes a circuit board 302, and each control connector 303 is electrically connected to the circuit board 302.

[0080] In summary, this application provides a heat dissipation device and a parallel heat dissipation system. The heat dissipation component 100 of the heat dissipation device includes a housing 101 and fan blades. The fan blades are disposed inside the housing 101. The first sidewall 1011 of the housing 101 has an air hole 1012. The blocking component 200 is located outside the housing 101 and is disposed on the first sidewall 1011. The blocking component 200 includes an elastic telescopic piece 201. When the elastic telescopic piece 201 is in an elastically contracted state, the fan blades communicate with the external environment through the air hole 1012. When the elastic telescopic piece 201 is in an elastically extended state, the elastic telescopic piece 201 closes the air hole 1012. The heat dissipation device of this application embodiment provides a blocking component 200 on the heat dissipation component 100. When the server is running normally and the heat dissipation component 100 is being replaced, the blocking component 200 remains closed during the process of inserting the heat dissipation component 100 into the installation compartment. The backflow airflow cannot affect the fan blades of the heat dissipation component 100, and the fan blades remain stationary. The blocking component 200 is only opened after the heat dissipation component 100 is installed, and the heat dissipation component 100 starts to run normally. This completely avoids the phenomenon of fan blade reversal during server system maintenance.

[0081] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0082] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0083] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0084] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0085] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application 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 or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A heat dissipation device, characterized in that, The components include a heat dissipation assembly and a blocking assembly. The heat dissipation assembly includes a housing and fan blades. The fan blades are disposed inside the housing. The first side wall of the housing has air holes. The blocking component is located outside the housing and is disposed on the first side wall. The blocking component includes an elastic telescopic piece. When the elastic telescopic piece is in an elastically contracted state, the fan blade communicates with the external environment through the air hole. When the elastic telescopic piece is in an elastically extended state, the elastic telescopic piece closes the air hole. The blocking assembly further includes a fixed shaft and a limiting member; the elastic telescopic sheet is wound around the fixed shaft, one end of the elastic telescopic sheet is connected to the fixed shaft, and the other end of the elastic telescopic sheet can move away from or close to the fixed shaft; a limiting buckle matching the limiting member is also provided on the first side wall; The blocking assembly further includes a fixed housing; the fixed housing has a receiving chamber, in which the fixed shaft and the elastic telescopic piece are both disposed; in a first direction, the fixed housing includes a first limiting groove and a second limiting groove disposed opposite to each other, and the fixed shaft has a first limiting block and a second limiting block respectively disposed at both ends along its axial direction, the first limiting block matching the first limiting groove and the second limiting block matching the second limiting groove; the fixed housing further includes a clearance through hole, through which the other end of the elastic telescopic piece extends out of the receiving chamber; The limiting member includes a vertically connected connecting plate and a limiting plate. The connecting plate is connected to the other end of the elastic telescopic piece, and the limiting plate is disposed outside the receiving cavity through the clearance through hole. The limiting plate includes a first end face and a second end face that are disposed opposite to each other in the second direction. The first end face is close to the connecting plate and abuts against the outer peripheral wall of the fixed shell. The limiting plate is matched with the limiting buckle; The second direction is perpendicular to the first direction.

2. The heat dissipation device according to claim 1, characterized in that, The fixed shaft is disposed on the first side wall, and the fixed shaft is parallel to the plane in which the first side wall is located; When the elastic telescopic piece is in an elastically extended state, the other end of the elastic telescopic piece is away from the fixed shaft; when the elastic telescopic piece is in an elastically contracted state, the other end of the elastic telescopic piece is close to the fixed shaft and wrapped around the fixed shaft.

3. The heat dissipation device according to claim 2, characterized in that, The outer peripheral wall of the fixed housing is provided with a first connecting buckle, and the first side wall is provided with a first connecting groove that matches the first connecting buckle.

4. The heat dissipation device according to claim 3, characterized in that, The limiting buckle includes a mating part, a connecting shaft, a buckle body, and a return spring; The mating component is disposed on the first sidewall, the mating component has a first connecting hole, the buckle body has a second connecting hole, the axial direction of the connecting shaft is parallel to the plane where the first sidewall is located, and the connecting shaft is connected to both the first connecting hole and the second connecting hole; The return spring is sleeved on the connecting shaft; The buckle body includes a first end and a second end, the second connecting hole is disposed between the first end and the second end, the first end matches the limiting plate, and the second end can rotate around the connecting shaft; When the second end is rotated toward the first sidewall by an external force, the first end moves away from the limiting plate; When the external force is released at the second end, the reset spring resets, the second end rotates away from the first side wall, and the first end engages with the limiting plate.

5. The heat dissipation device according to claim 4, characterized in that, The first end face is perpendicular to the plane where the first sidewall is located, the second end face is inclined relative to the first end face, and the thickness of the limiting plate gradually decreases in the direction away from the connecting plate.

6. The heat dissipation device according to claim 5, characterized in that, The first end includes a snap-fit ​​end face and a guide end face, the snap-fit ​​end face is perpendicular to the plane where the first sidewall is located, and the snap-fit ​​end face abuts against the first end face; In the second direction, the guide end face is located above the snap-fit ​​end face, and the guide end face is inclined relative to the snap-fit ​​end face, and the guide end face matches the second end face.

7. A parallel heat dissipation system, characterized in that, The device includes a heat dissipation device as described in any one of claims 1-6, and further includes a housing, the housing including a plurality of mounting compartments, each of the heat dissipation devices being correspondingly disposed in one of the mounting compartments; The installation chamber includes a first inlet and a second inlet that are opposite each other along a third direction. The first inlet and the second inlet are connected. The heat dissipation device is disposed in the installation chamber along the direction from the first inlet toward the second inlet. The first sidewall is close to the second inlet.

8. The parallel heat dissipation system according to claim 7, characterized in that, Each of the installation compartments is provided with an abutment on its second side wall near the second inlet; The first sidewall of the heat dissipation device is provided with a limiting buckle that matches the limiting member. The buckle body of the limiting buckle has a second end, and the abutting member abuts against the second end.

9. The parallel heat dissipation system according to claim 8, characterized in that, Each of the installation compartments is provided with a control connector on the second side wall near the second inlet. Each control connector is matched with a heat dissipation component connector of a heat dissipation component. The control connector is used to control the operation of the heat dissipation component. While the abutting member abuts against the second end, the control connector is electrically connected to the heat dissipation component connector.

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