Stent fan with flow guiding structure

Abstract

The utility model discloses a support fan with guide structure relates to heat dissipation fan technical field, and this support fan includes: the split frame and guide support of interconnection, guide fan is connected on guide support and is located in the through -hole of split frame surface, wherein the bottom edge position of guide support is arc structure, and with the air outlet of guide fan corresponds, can to the air of guide fan exhausts and guides. The utility model discloses the support fan with guide structure, because the guide support of arc surface is used as the air outlet of guide fan, when air expands outward, can along " arc " guide support and flow outward, thereby to the air that is close to the fan wind direction close and pushes outward, therefore, effectively solved the technical problem that the heat dissipation efficiency of current support fan is attenuated when using, and the air current is disorderly, and further realized the stable conduction of fan wind direction, reduces the influence degree of wind direction by external environment.

Description

Technical Field

[0001] This utility model relates to the field of cooling fan technology, and in particular to a bracket fan with a flow guiding structure. Background Technology

[0002] Traditional bracket fans suffer from problems such as uneven airflow distribution, low heat dissipation efficiency, and high noise during use. For example, in existing technologies, the guide vanes are mostly flat plate structures, which can easily cause airflow separation when passing through, resulting in increased vortex noise. In addition, the guide structure design of some fans is complex, inconvenient to install, and cannot effectively adjust the airflow direction to adapt to different scenario requirements.

[0003] Currently, Chinese patent application number CN202323492647.4 discloses a high-efficiency heat dissipation computer motherboard, including a motherboard body and a heat dissipation component screwed to the top of the motherboard. The heat dissipation component includes an X-shaped bracket fixed to the top of the motherboard and a heat dissipation fan for heat dissipation. The bottom of the X-shaped bracket is fixed with a limit bracket. Although the arc-shaped heat sinks of this patent can form a turbine structure, and the two adjacent arc-shaped heat sinks form an arc-shaped heat dissipation channel to accelerate the airflow, the airflow is blocked by the surrounding air during conduction, causing the airflow direction to deviate or cancel out. In addition, after the air is blown out, it will form a diffusion phenomenon, resulting in the airflow not being concentrated, affecting the airflow direction and speed.

[0004] However, during the implementation of the above technical solution, at least the following technical problems were discovered:

[0005] (1) Turbulent airflow leads to reduced heat dissipation efficiency (high-frequency operation scenario of game consoles):

[0006] During intense esports battles or 3D rendering by designers, the core temperature of graphics cards often soars to over 80°C. At this point, the cooling system operates at full load. However, the flat exhaust port design of traditional axial fans has inherent flaws. When high-speed airflow is discharged from the fan blades, air molecules are affected by inertial diffusion and disperse in all directions, making it difficult to form a concentrated and stable airflow. According to Bernoulli's principle, the central airflow area with high-speed flow will generate low pressure, and the surrounding air will be compressed laterally under the action of atmospheric pressure, which will cause the main airflow direction to become turbulent. This phenomenon is particularly obvious in compact ITX cases or multi-graphics card crossfire scenarios. The airflow between the heatsink fins can be seen to be in a disordered vortex state. This not only prolongs the heat retention time, but also causes the fan noise to increase exponentially with the increase of fan speed, ultimately forming a vicious cycle of "high speed and low efficiency".

[0007] (2) Traditional fixed methods cause maintenance pain points (DIY installation and equipment maintenance scenarios):

[0008] When DIY enthusiasts discover abnormal noises from the fan bearings, or when hardware tests show a decrease in cooling efficiency of more than 30%, they are forced to face a cumbersome fan replacement process. First, they need to disconnect the power cable, remove the side panel of the case, then use a screwdriver to remove the graphics card mounting screws, remove the entire graphics card from the motherboard's PCI-E slot, and finally operate on the 4-6 mounting bolts on the heatsink. This maintenance method has significant drawbacks.

[0009] Firstly, the lifespan mismatch problem is quite prominent. High-performance fans are in a high-load operating state for a long time. The wear of the bearings makes their average lifespan (about 20,000-30,000 hours) often only one-fifth of that of the graphics card core components (about 100,000 hours), resulting in the embarrassing situation that "the graphics card can still serve, but the fan has to retire first."

[0010] Secondly, there is a tool dependency dilemma. Each maintenance requires the preparation of professional tools such as Phillips screwdrivers and anti-static gloves. Ordinary users often cause damage to the slots or electrostatic discharge of components due to improper operation.

[0011] Third, the structural design has flaws. The rigid connection method of bolt fixing is prone to stripping of the radiator screw holes after repeated disassembly and assembly, which directly affects the reliability of the equipment.

[0012] (3) Technical bottlenecks of existing magnetic attraction solutions (industrial equipment and precision instrument scenarios):

[0013] To address the drawbacks of traditional bolt-fixing methods, a magnetic quick-release solution has emerged on the market. This solution uses neodymium iron boron magnets arranged between the fan and the heatsink to enable quick manual replacement. However, this solution has revealed new problems in industrial applications.

[0014] First, there is a risk of magnetic field interference. Strong magnetic field areas can produce magnetic coupling effect on the inductors of the graphics card power supply module, which will cause the current waveform to be distorted. According to actual tests, the ripple noise will increase when the graphics card is fully loaded. At the same time, the adsorbed metal dust (such as CPU thermal paste particles and metal debris in the case) will block the gaps of the heat sink fins, increasing the thermal resistance by more than 20%.

[0015] Secondly, the connection reliability is insufficient. In the high-frequency vibration environment of the server room or in the transportation scenario of e-sports equipment, the acceleration impact of more than 3G can easily cause the magnetic interface to separate. After the equipment with magnetic fans is transported for the event, the failure rate of the fan falling off is much higher than that of the bolt fixing solution.

[0016] Third, there is a thermodynamic paradox: the Curie temperature limit of the magnet material (approximately 310°C for neodymium iron boron) contradicts the high-temperature environment of the graphics card (long-term operating temperature close to 100°C). Continuous high temperature will cause the magnetic flux to decay. According to tests, the adsorption force will decrease by 40% after 6 months of use, which poses a risk of progressive failure. To address this, we propose a bracket fan with a flow-guiding structure. Utility Model Content

[0017] (a) Technical problems to be solved

[0018] To address the shortcomings of existing technologies, this utility model provides a bracket fan with a flow guiding structure, which solves the technical problems of reduced heat dissipation efficiency and poor connection stability caused by turbulent airflow during use of existing bracket fans.

[0019] (II) Technical Solution

[0020] To achieve the above objectives, this utility model provides the following technical solution:

[0021] A bracket fan with a flow guide structure, the bracket fan comprising:

[0022] Interconnected split frames and flow guide brackets;

[0023] A flow-guiding fan is connected to the flow-guiding bracket and located in the through hole on the surface of the split frame;

[0024] The bottom edge of the air guide bracket has an arc-shaped structure, which corresponds to the air outlet of the air guide fan, and can guide the air discharged by the air guide fan.

[0025] Preferably, a connecting component is provided between the air guide bracket and the air guide fan, and the connecting component is located at the center of the air guide bracket. The air guide bracket can be connected to the drive component embedded at the bottom of the air guide fan through the connecting component.

[0026] The connecting assembly includes an extension rod connected to the center of the flow guide bracket, and the end of the extension rod is connected to a tapered fixing head, which corresponds to the connector on the drive assembly.

[0027] Two wedge-shaped compression pins are symmetrically installed on the inner wall of the connector. When the fixing head is inserted into the connector, the top of the compression pins fits against the bottom of the fixing head, restricting the position of the fixing head.

[0028] Preferably, the drive assembly includes a motor and a driven head connected to each other, and can drive the driven head to rotate when the motor is energized;

[0029] The driven head is embedded in the bottom of the airflow fan, and the connecting head is located at the end of the motor.

[0030] Preferably, a conductive sheet is connected to the top of the extrusion pin, and the conductive sheet is connected to the motor via a wire;

[0031] When the extrusion pin limits the fixing head, the conductive sheet on the extrusion pin is in contact with the conductive strip inside the fixing head, and the motor is electrically connected to the conductive strip.

[0032] Preferably, the extension rod is fitted with a tapered sliding head, and the tapered surface of the sliding head is opposite to the tapered surface of the fixed head;

[0033] The inclined surface of the extrusion pin faces downward. When the air guide fan is pressed, the inclined surface of the extrusion pin corresponds to the edge of the sliding head, and as the air guide fan moves downward, the extrusion pin is extruded into the interior of the connector.

[0034] As the airflow fan moves upward, the sliding head and the extrusion pin move upward synchronously and come into contact with the fixed head at the end of the extension rod; and as the airflow fan moves upward, the extrusion pin slides along the tapered surface of the sliding head, retracts into the interior of the connector, and moves upward along the edge of the fixed head.

[0035] Preferably, the bottom of the extension rod is connected to a base plate, and the extension rod is connected to the flow guide bracket through the base plate, and the top of the base plate is connected to a lifting seat through a spring;

[0036] When the fixing head is inserted into the coupling, the coupling fits against the top of the lifting seat; the spring between the base plate and the lifting seat is compressed, providing an upward thrust to the lifting seat.

[0037] Preferably, a limiting base is sleeved on the outside of the extension rod, and the limiting base is located below the sliding head and connected to the top of the base plate, which can limit the falling position of the sliding head.

[0038] Preferably, the end of the pressing pin is movably connected to a roller, and the pressing pin contacts the surfaces of the fixed head and the sliding head through the roller.

[0039] Preferably, a tray is connected to the center of the flow guide bracket, the bottom plate is connected to the groove on the top of the tray, and when the fixing head is inserted into the connector, the outer wall of the motor fits against the inner wall of the tray, which can limit the movement of the motor.

[0040] (III) Beneficial Effects

[0041] 1. Because the air guide bracket with an arc-shaped surface is used as the exhaust port of the air guide fan, when the air expands outward, it can flow outward along the "arc-shaped" air guide bracket, thereby pushing the air close to the fan direction outward. Therefore, it effectively solves the technical problem of the reduced heat dissipation efficiency caused by airflow turbulence when the existing bracket fan is used, and thus achieves stable transmission of fan air direction and reduces the degree of influence of the external environment on the air direction.

[0042] 2. By setting two opposing squeezing pins on the driven head, which correspond to the conical fixed head, when the fixed head is inserted into the connector, the wedge-shaped squeezing pins and the conical fixed head form a geometric self-locking mechanism, connecting the guide bracket and the guide fan together, thus completing the installation of the guide fan. Conversely, when it is necessary to remove the guide fan, by pressing the guide fan, it comes into contact with the sliding head at the bottom of the fixed head. Under the action of the conical surface of the sliding head, the two squeezing pins open, thereby separating from the fixed head, thus completing the disassembly of the guide fan. Therefore, it effectively solves the technical problem of poor connection stability when using existing bracket fans, and thus realizes the fixing and disassembly of the guide fan. At the same time, the guide fan and the guide bracket adopt a "mechanical structure" connection, which, compared with the magnetic connection method, ensures a simple disassembly structure while improving stability.

[0043] 3. Because a spring-loaded lifting seat is used to support the bottom of the driven head, it not only provides an upward thrust for the driven head, but also pushes the guide fan out when it is being picked up or put down, making it easy to pick up or put down. In addition, the center of the tray is recessed downward to form a groove, which can cover the outside of the driven head when the driven head is inserted into the fixed head, thereby wrapping the driven head, restricting its range of motion, and ensuring the stability of the guide fan. Attached Figure Description

[0044] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0045] Figure 1 This is an overall structural diagram of an embodiment of the present utility model;

[0046] Figure 2 This is an exploded view of an embodiment of the present invention;

[0047] Figure 3 This is a cross-sectional view of the overall structure in an embodiment of this utility model;

[0048] Figure 4 This utility model Figure 3 A sectional view with the center section line;

[0049] Figure 5 This is a partial sectional view of the overall structure in an embodiment of this utility model;

[0050] Figure 6 This is a schematic diagram of the assembly of the drive component and the airflow fan in an embodiment of this utility model;

[0051] Figure 7 This is a structural diagram of the drive component and the airflow fan assembled in an embodiment of this utility model;

[0052] Figure 8 This is a schematic diagram of the extrusion pin in an embodiment of the present invention;

[0053] Figure 9 This is a structural diagram of the connecting component in an embodiment of the present utility model;

[0054] Figure 10 This is an exploded view of the connecting component in an embodiment of this utility model;

[0055] Figure 11 This is one of the assembly diagrams of the connecting components in an embodiment of this utility model;

[0056] Figure 12 This is the second assembly diagram of the connecting components in this embodiment of the present utility model;

[0057] Figure 13 This is the third assembly diagram of the connecting components in this utility model embodiment;

[0058] Figure 14 This is a schematic diagram of the flow guiding structure in an embodiment of this utility model;

[0059] Figure 15 This is a schematic diagram of wind direction in an embodiment of this utility model.

[0060] Legend:

[0061] 1. Split frame;

[0062] 2. Guide fan; 21. Mounting base; 22. Center cylinder; 23. Blades;

[0063] 31. Flow guide bracket; 32. Tray; 33. Connecting rod;

[0064] 4. Drive assembly; 41. Motor; 42. Driven head; 43. Connector;

[0065] 5. Connecting assembly; 51. Base plate; 52. Extension rod; 53. Fixing head; 54. Sliding head; 55. Limiting base; 56. Lifting seat; 57. Pressing pin; 58. Roller;

[0066] 61. Conductive sheet; 62. Conductive strip. Detailed Implementation

[0067] This application provides a bracket fan with a flow-guiding structure, effectively solving the technical problems of reduced heat dissipation efficiency and poor connection stability caused by turbulent airflow in existing bracket fans. In the use of existing bracket fans, the use of an arc-shaped flow-guiding bracket as the exhaust port allows air to flow outward along the arc-shaped bracket as it expands outward, thus pushing air close to the fan's direction outward and achieving stable airflow transmission, reducing the influence of the external environment on the airflow direction. Furthermore, by setting two opposing compression pins on the driven head, which correspond to the conical fixed head... When the fixing head is inserted into the connector, the wedge-shaped extrusion pin and the conical fixing head form a geometric self-locking mechanism, connecting the flow guide bracket and the flow guide fan together, thus completing the installation of the flow guide fan. Conversely, when it is necessary to remove the flow guide fan, pressing the flow guide fan makes it contact the sliding head at the bottom of the fixing head. Under the action of the conical surface of the sliding head, the two extrusion pins open, thereby separating from the fixing head, thus completing the disassembly of the flow guide fan. This achieves both fixing and disassembly of the flow guide fan. At the same time, the flow guide fan and the flow guide bracket are connected by a "mechanical structure," which, compared to the magnetic connection method, ensures a simple disassembly structure while improving stability.

[0068] Example: The technical solution in this application effectively solves the technical problems of reduced heat dissipation efficiency and poor connection stability caused by turbulent airflow during the use of existing bracket fans. The overall idea is as follows:

[0069] To address the problems existing in the prior art, this utility model provides a bracket fan with a flow guiding structure. The bracket fan mainly consists of three parts: firstly, a split frame 1 that provides support and can be connected to the graphics card; the split frame 1 can be connected to the heatsink to provide support for the subsequent flow guiding fan 2; secondly, the flow guiding fan 2, which directs airflow towards the heatsink inside the split frame 1 to remove heat from the heatsink; and thirdly, a flow guiding bracket 31 that directs the airflow and is directly connected to the flow guiding fan 2.

[0070] The air guide bracket 31 is located at the air outlet of the air guide fan 2, and can guide and converge the air discharged from the air guide fan 2, such as... Figure 14As shown in (a), the traditional airflow guiding structure is cylindrical and can only guide the air. However, due to the diffusion function of air, when the high-speed airflow is discharged from the fan blades, the air molecules are affected by the inertial diffusion effect and disperse in all directions, making it difficult to form a concentrated and stable airflow stream. At the same time, according to Bernoulli's principle, the central airflow region of high-speed flow will generate low pressure, and the surrounding air will be compressed laterally under the action of atmospheric pressure, which will lead to turbulence in the direction of the main airflow. This phenomenon is particularly obvious in compact ITX cases or multi-graphics card crossfire scenarios. The airflow between the heat sink fins can be seen to be in a disordered vortex state. This will not only prolong the heat retention time, but also cause the fan noise to increase exponentially with the increase of fan speed, ultimately forming a vicious cycle of "high speed and low efficiency".

[0071] And this application, such as Figure 14 As shown in (b), by making the guide structure arc-shaped, it can guide the air as it expands outward, directing it to flow in the direction of the prevailing wind. At the same time, it uses the force of this diffused wind to block the air close to the wind direction, pushing the surrounding air outward, thereby ensuring the stability of the airflow. This improves the stability of the wind direction.

[0072] In addition, this application has a major improvement: the connection structure between the airflow fan 2 and the airflow bracket 31. This design aims to reduce the difficulty of connecting the two while improving reliability. Currently, existing connection methods mainly rely on mechanical structures, such as bolts, to fix the driven head 42 of the airflow fan 2 to the airflow bracket 31. While this maintains the stability of the airflow fan 2, it also presents a problem: inconvenient disassembly. Because the airflow fan 2 operates under high load for extended periods, bearing wear often results in an average lifespan (approximately 20,000-30,000 hours) that is only one-fifth of the core components of the graphics card (approximately 100,000 hours), leading to the awkward situation where "the graphics card is still in service, but the airflow fan 2 is already retired." Furthermore, each maintenance requires specialized tools such as Phillips screwdrivers and anti-static gloves. Ordinary users often damage the slot or cause electrostatic discharge to the components due to improper operation, causing significant inconvenience.

[0073] The existing improvement method uses magnetic attraction instead of the traditional "mechanical structure". That is, by placing a group of neodymium iron boron magnets between the fan and the heat sink, it is possible to quickly replace the fan by hand. However, this solution has exposed new problems in industrial applications.

[0074] First, there is a risk of magnetic field interference. Strong magnetic field areas can produce magnetic coupling effect on the inductors of the graphics card power supply module, which will cause the current waveform to be distorted. According to actual tests, the ripple noise will increase when the graphics card is fully loaded. At the same time, the adsorbed metal dust (such as CPU thermal paste particles and metal debris in the case) will block the gaps of the heat sink fins, increasing the thermal resistance by more than 20%.

[0075] Secondly, the connection reliability is insufficient. In the high-frequency vibration environment of the server room or in the transportation scenario of e-sports equipment, the acceleration impact of more than 3G can easily cause the magnetic interface to separate. After the equipment with magnetic fans is transported for the event, the failure rate of the fan falling off is much higher than that of the bolt fixing solution.

[0076] Third, there is a thermodynamic paradox: the Curie temperature limit of the magnet material (approximately 310°C for neodymium iron boron) contradicts the high-temperature environment of the graphics card (long-term operating temperature close to 100°C). Continuous high temperature will cause the magnetic flux to decay. According to tests, the adsorption force will decrease by 40% after 6 months of use, posing a risk of gradual failure.

[0077] To solve the above problem while maintaining the quick-release function of the "magnetic structure", the following technical solution is proposed:

[0078] The airflow guide fan consists of a cylindrical central cylinder 22 and blades 23 evenly distributed around the outside of the central cylinder 22. When the central cylinder 22 rotates, it drives the blades 23 to rotate, thus forming an airflow guide fan 2 capable of guiding the airflow direction. To secure the driven head 42 to the central cylinder 22, a mounting base 21 is provided inside for embedding the driven head 42. Figure 6 and Figure 7 As shown;

[0079] A tray 32 is located at the center of the flow guide bracket 31, which supports the connecting component 5. The tray 32 and the flow guide bracket 31 are connected by multiple connecting rods 33, such as... Figure 2 As shown;

[0080] The drive assembly 4 mainly consists of two interconnected motors 41 and driven head 42. When the motors 41 are energized, they can drive the driven head 42 to rotate. Thus, by connecting the motors 41 and driven head 42 to the flow guide fan 2 and the flow guide bracket 31 respectively, and then energizing them, the flow guide fan 2 can be rotated (the flow guide bracket 31 is connected to the split frame 1, and the split frame 1 cannot move).

[0081] As can be seen from the above, the connection between the airflow fan 2 and the airflow bracket 31 mainly lies in the connection between the motor 41 and the airflow bracket 31. A connecting component 5 is installed between the airflow bracket 31 and the airflow fan 2 to complete the connection between the two. The specific structure is as follows:

[0082] The base plate 51 is connected to the center of the tray 32, and a cylindrical extension rod 52 is connected to it, with a tapered fixing head 53 connected to the end of the extension rod 52.

[0083] In order to connect to the fixed head 53, a connector 43 with an opening is connected to the motor 41, such as... Figure 6 As shown, two wedge-shaped compression pins 57 are symmetrically installed on the inner wall of the connector 43, and the compression pins 57 are connected to the inner wall of the connector 43 by springs, and can retract when the compression pins 57 are compressed.

[0084] The locking process is as follows: Figure 11 As shown in (a), when the fixing head 53 is inserted into the connector 43 and the fixing head 53 is pressed, the pressing pin 57 slides along the conical surface of the fixing head 53 and retracts into the connector 43 until the fixing head 53 moves above the pressing pin 57. At this time, the pressing pin 57 extends out under the elastic force of the rear spring. Figure 11 As shown in (b), the fixing head 53 forms a "claw" that hooks onto the compression pin 57 inside the connector 43, thereby locking the fixing head 53 and fixing it in the connector 43. This completes the locking between the connector 43 and the fixing head 53.

[0085] In order to unlock the aforementioned locking structure, a similarly tapered sliding head 54 is fitted over the extension rod 52, with the tapered surface of the sliding head 54 opposite to that of the fixed head 53. Figure 10 As shown.

[0086] like Figure 12 As shown in (a), since the inclined surface of the extrusion pin 57 faces downward, when the flow guide fan 2 is pressed, the inclined surface of the extrusion pin 57 is pressed against the edge of the sliding head 54, and as the flow guide fan 2 moves downward, the extrusion pin 57 is pressed into the interior of the connector 43 until the extrusion pin 57 moves below the connector 43, as shown in (a). Figure 12 As shown in (b), this completes the first step of unlocking.

[0087] The second step is to pull the guide fan 2 upward so that the motor 41 moves upward synchronously. During the movement, the two pressing pins 57 clamp the sliding head 54, so that it moves upward synchronously with the pressing pins 57 until the sliding head 54 is in contact with the fixed head 53 at the end of the extension rod 52.

[0088] like Figure 13 As shown in (a), as the guide fan 2 moves upward, the extrusion pin 57 slides along the tapered surface of the sliding head 54, retracts back into the interior of the connector 43, and moves upward along the edge of the fixing head 53, as... Figure 13As shown in (b), until the squeeze pin 57 moves above the fixed head 53.

[0089] To ensure the stability of the motor 41 during installation, a lifting seat 56 is connected to the top of the base plate 51 via a spring; for example... Figure 7 and Figure 11 As shown, when the fixing head 53 is inserted into the connector 43, the connector 43 is in contact with the top of the lifting seat 56, and under the squeezing action of the connector 43 on the lifting seat 56, the spring between the base plate 51 and the lifting seat 56 is in a squeezed state, thereby forming a power storage state, which provides an upward support force for the motor 41, and also provides an upward thrust for the subsequent disassembly of the motor 41.

[0090] Furthermore, during the unlocking process, the squeezing pin 57 needs to be moved below the sliding head 54. Therefore, if the sliding head 54 is in contact with the base plate 51, it is inconvenient to grab. At the same time, there is no space to store the spring between the lifting seat 56 and the base plate 51. Therefore, a cylindrical limiting base 55 is fitted on the outside of the extension rod 52, and the limiting base 55 is located below the sliding head 54 and connected to the top of the base plate 51. This can limit the falling position of the sliding head 54 and facilitate the grabbing of the squeezing pin 57.

[0091] In order to reduce the friction between the pressing pin 57 and the fixed head 53 or the sliding head 54, a roller 58 is connected to each of the two pressing pins 57 at opposite ends. In this way, the pressing pin 57 can contact the surface of the fixed head 53 and the sliding head 54 through the roller 58, so as to facilitate pressing the pressing pin 57 into the connector 43 to meet the needs of locking or unlocking.

[0092] Regarding the power supply, this can be achieved by utilizing the action of the squeezing pin 57 gripping the fixing head 53, i.e., the squeezing pin 57 is in contact with the bottom of the fixing head 53, such as... Figure 11 As shown in (a), a conductive plate 61 is first connected to the top of the extrusion pin 57, and the conductive plate 61 is connected to the motor 41 via a wire. This ensures that when the extrusion pin 57 limits the fixing head 53, the conductive plate 61 on the extrusion pin 57 is in contact with the conductive strip 62 inside the fixing head 53. The motor 41 is electrically connected to the conductive strip 62, which extends to the outside of the split frame 1 via a wire, and a terminal block is connected to this end for easy power connection. Power is then connected to the terminal block. When the current enters the conductive strip 62 along the wire, since the conductive strip 62 is attached to the conductive sheet 61 on the extrusion pin 57, when the current enters the conductive strip 62, the current will enter the conductive sheet 61 along the conductive strip 62, and then enter the motor 41 through the wire between the conductive sheet 61 and the motor 41, supplying power to the motor 41, so that it drives the driven head 42 to rotate and the flow guide fan 2 connected to the driven head 42 to rotate (the flow guide bracket 31 is connected to the split frame 1, and the split frame 1 cannot be moved).

[0093] In the specific implementation process, the locking process is as follows: Figure 11 As shown in (a), when the fixing head 53 is inserted into the connector 43 and the fixing head 53 is pressed, the pressing pin 57 slides along the conical surface of the fixing head 53 and retracts into the connector 43 until the fixing head 53 moves above the pressing pin 57. At this time, the pressing pin 57 extends out under the elastic force of the rear spring. Figure 11 As shown in (b), the fixing head 53 forms a "claw" that hooks onto the compression pin 57 inside the connector 43, thereby locking the fixing head 53 and fixing it in the connector 43. This completes the locking between the connector 43 and the fixing head 53.

[0094] In order to unlock the aforementioned locking structure, a similarly tapered sliding head 54 is fitted over the extension rod 52, with the tapered surface of the sliding head 54 opposite to that of the fixed head 53. Figure 10 As shown.

[0095] like Figure 12 As shown in (a), since the inclined surface of the extrusion pin 57 faces downward, when the flow guide fan 2 is pressed, the inclined surface of the extrusion pin 57 is pressed against the edge of the sliding head 54, and as the flow guide fan 2 moves downward, the extrusion pin 57 is pressed into the interior of the connector 43 until the extrusion pin 57 moves below the connector 43, as shown in (a). Figure 12 As shown in (b), this completes the first step of unlocking.

[0096] The second step is to pull the guide fan 2 upward so that the motor 41 moves upward synchronously. During the movement, the two pressing pins 57 clamp the sliding head 54, so that it moves upward synchronously with the pressing pins 57 until the sliding head 54 is in contact with the fixed head 53 at the end of the extension rod 52.

[0097] like Figure 13 As shown in (a), as the guide fan 2 moves upward, the extrusion pin 57 slides along the tapered surface of the sliding head 54, retracts back into the interior of the connector 43, and moves upward along the edge of the fixing head 53, as... Figure 13 As shown in (b), until the squeeze pin 57 moves above the fixed head 53.

[0098] When the terminal block (conductive strip 62 is connected to the terminal block via a wire) is connected to the power supply, the current enters the conductive strip 62 along the wire. Since the conductive strip 62 is in contact with the conductive sheet 61 on the extrusion pin 57, when the current enters the conductive strip 62, the current will enter the conductive sheet 61 along the conductive strip 62, and then enter the motor 41 through the wire between the conductive sheet 61 and the motor 41, supplying power to the motor 41, which drives the driven head 42 to rotate and the flow guide fan 2 connected to the driven head 42 to rotate.

[0099] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A bracket fan with a flow guiding structure, characterized in that, The bracket fan includes: The interconnected split frame (1) and the flow guide bracket (31); A flow guide fan (2) is connected to the flow guide bracket (31) and located in the through hole on the surface of the split frame (1); The bottom edge of the flow guide bracket (31) has an arc-shaped structure and corresponds to the air outlet of the flow guide fan (2), which can guide the air discharged by the flow guide fan (2).

2. The bracket fan with a flow guiding structure as described in claim 1, characterized in that: A connecting component (5) is provided between the flow guide bracket (31) and the flow guide fan (2), and the connecting component (5) is located at the center of the flow guide bracket (31). The flow guide bracket (31) can be connected to the drive component (4) embedded at the bottom of the flow guide fan (2) through the connecting component (5). The connecting component (5) includes an extension rod (52) connected to the center of the flow guide bracket (31), and the end of the extension rod (52) is connected to a tapered fixing head (53), which corresponds to the connector (43) on the drive component (4). Two wedge-shaped compression pins (57) are symmetrically installed on the inner wall of the connector (43), and the compression pins (57) are connected to the inner wall of the connector (43) by springs. When the fixing head (53) is inserted into the connector (43), the top of the compression pin (57) fits against the bottom of the fixing head (53) to restrict the position of the fixing head (53).

3. The bracket fan with a flow guiding structure as described in claim 2, characterized in that: The drive assembly (4) includes a motor (41) and a driven head (42) connected to each other, and can drive the driven head (42) to rotate when the motor (41) is energized; The driven head (42) is embedded in the bottom of the guide fan (2), and the connector (43) is located at the end of the motor (41).

4. The bracket fan with a flow guiding structure as described in claim 3, characterized in that: The top of the extrusion pin (57) is connected to a conductive sheet (61), and the conductive sheet (61) is connected to the motor (41) through a wire; When the extrusion pin (57) limits the fixing head (53), the conductive sheet (61) on the extrusion pin (57) is in contact with the conductive strip (62) on the inner side of the fixing head (53), and the motor (41) is electrically connected to the conductive strip (62).

5. The bracket fan with a flow guiding structure as described in claim 3, characterized in that: The extension rod (52) is fitted with a tapered sliding head (54), and the tapered surface of the sliding head (54) is opposite to the tapered surface of the fixed head (53); The inclined surface of the extrusion pin (57) is downward. When the flow guide fan (2) is pressed, the inclined surface of the extrusion pin (57) corresponds to the edge of the sliding head (54). As the flow guide fan (2) moves downward, the extrusion pin (57) is extruded into the interior of the connector (43). As the guide fan (2) moves upward, the sliding head (54) and the extrusion pin (57) move upward synchronously until the sliding head (54) and the fixing head (53) at the end of the extension rod (52) come into contact; and as the guide fan (2) moves upward, the extrusion pin (57) slides along the tapered surface of the sliding head (54), retracts into the interior of the connector (43), and moves upward along the edge of the fixing head (53).

6. The bracket fan with a flow guiding structure as described in claim 5, characterized in that: The bottom of the extension rod (52) is connected to a base plate (51), and the extension rod (52) is connected to the flow guide bracket (31) through the base plate (51). The top of the base plate (51) is connected to a lifting seat (56) through a spring. When the fixing head (53) is inserted into the connector (43), the connector (43) is in contact with the top of the lifting seat (56); the spring between the base plate (51) and the lifting seat (56) is in a compressed state, providing an upward thrust to the lifting seat (56).

7. The bracket fan with a flow guiding structure as described in claim 6, characterized in that: The extension rod (52) is fitted with a limiting base (55), which is located below the sliding head (54) and connected to the top of the base plate (51), thereby limiting the falling position of the sliding head (54).

8. The bracket fan with a flow guiding structure as described in claim 6, characterized in that: The center of the flow guide bracket (31) is connected to a tray (32), the bottom plate (51) is connected to a groove on the top of the tray (32), and when the fixing head (53) is inserted into the connector (43), the outer wall of the motor (41) fits against the inner wall of the tray (32), which can limit the movement of the motor (41).

Images