Heat dissipation fan and electronic device

Abstract

The utility model discloses a kind of heat dissipation fan and electronic equipment, it is related to electronic equipment heat dissipation structure technical field, wherein, heat dissipation fan includes fan assembly, heat dissipation component and connecting frame, wherein, fan assembly includes mounting bracket and fan body, the inside of mounting bracket forms installation cavity, and fan body is fixed in installation cavity;Heat dissipation component is located at the side of mounting bracket;Connecting frame is located between mounting bracket and heat dissipation component, and mounting bracket and heat dissipation component are respectively with the detachable connection of connecting frame.The utility model provides technical scheme, not only solve the problem that metal card silk is fixed fan in the heat dissipation fan of existing, prone to scratch heat dissipation fin, still have the effect that fan assembly and heat dissipation component are conveniently disassembled.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation structure technology for electronic devices, and in particular to a cooling fan and an electronic device. Background Technology

[0002] As electronic devices continue to evolve towards higher power and miniaturization, the heat generated during their operation is increasing daily. Therefore, efficient heat dissipation systems have become crucial for ensuring stable equipment operation. In common air-cooling solutions, the cooling fan, as the core component of forced convection heat transfer, directly impacts heat dissipation efficiency and equipment operational safety through its reliable and stable installation.

[0003] Currently, the cooling fans of some electronic devices commonly use metal clips as a fixing structure to attach the fan to the outer surface of the heat dissipation module. This structure is simple and low in cost, but it has significant technical drawbacks. First, during installation or equipment operation, the rigid edges of the metal clips are prone to rubbing against the heat dissipation fins on the heat dissipation module due to vibration or external forces, resulting in scratches or even deformation of the fin surface. Utility Model Content

[0004] The main purpose of this utility model is to propose a cooling fan that aims to solve the problem that the use of metal clips to fix the fan in existing cooling fans can easily cause scratches on the heat dissipation fins.

[0005] To achieve the above objectives, the present invention provides a cooling fan, which includes: A fan assembly includes a mounting bracket and a fan body, wherein the mounting bracket has an internal mounting cavity, and the fan body is fixedly disposed within the mounting cavity; A heat dissipation component is disposed on one side of the mounting bracket; and A connecting frame is disposed between the mounting bracket and the heat dissipation component, and the mounting bracket and the heat dissipation component are detachably connected to the connecting frame.

[0006] In one embodiment, the connecting frame is provided with a clamping plate, and the clamping plate is provided on at least one side of each of the opposite sides of the connecting frame and extends toward one side of the heat dissipation component to clamp the opposite sides of the heat dissipation component.

[0007] In one embodiment, the heat dissipation component has a locking step at one end near the connecting frame, and the clamping plate has a locking strip on the side facing the heat dissipation component, and the locking strip abuts against the locking step.

[0008] In one embodiment, the clamping plate has a flange located at the end of the clamping plate away from the mounting bracket and bent away from the heat dissipation component.

[0009] In one embodiment, the clamping plate is made of a flexible material.

[0010] In one embodiment, the mounting bracket includes a bracket body and positioning blocks. The mounting cavity is formed inside the bracket body. The bracket body has a square structure. The positioning blocks are embedded at the four corners of the bracket body. The positioning blocks, the bracket body, and the connecting frame are detachably connected by fasteners.

[0011] In one embodiment, the positioning block, the bracket body, and the connecting frame are all provided with intersecting locking holes, and the fastener is disposed through the locking holes.

[0012] In one embodiment, the connecting frame is square, and a stop bar is provided on the connecting frame. One stop bar is provided on each of the four sides of the connecting frame, and the stop bar extends toward one side of the mounting bracket and clamps the four sides of the mounting bracket.

[0013] In one embodiment, the cooling fan further includes a heat-conducting structure, which is disposed through the interior of the heat dissipation assembly.

[0014] To achieve the above objectives, this utility model also proposes an electronic device, which includes the cooling fan described in any of the above embodiments.

[0015] The technical solution of this utility model provides a connecting frame structure between the fan assembly and the heat dissipation assembly to connect them. The connecting frame is detachably connected to both the mounting bracket and the heat dissipation assembly, making the assembly and disassembly of the fan assembly and the heat dissipation assembly faster and more convenient. The introduction of the connecting frame replaces the existing solution of assembling the fan assembly and the heat dissipation assembly with metal wires, which not only makes installation and disassembly convenient, but also prevents the metal wires from scratching the surface of the heat dissipation assembly. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 A schematic diagram of a cooling fan according to an embodiment of the present invention; Figure 2 Another structural schematic diagram of an embodiment of the cooling fan provided by this utility model; Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 A schematic diagram of the lower side structure of the connecting frame in another embodiment of the cooling fan provided by this utility model; Figure 5 A schematic diagram of the upper structure of the connecting frame in another embodiment of the cooling fan provided by this utility model; Figure 6 An exploded view of part of the structure of the cooling fan provided by this utility model in another embodiment.

[0018] Explanation of icon numbers: 100. Cooling fan; 1. Fan assembly; 11. Mounting bracket; 111. Bracket body; 112. Positioning block; 12. Fan body; 2. Cooling component; 21. Snap-fit ​​step; 3. Connecting frame; 31. Clamping plate; 311. Snap-fit ​​strip; 312. Flanged edge; 32. Stop bar; 4. Locking hole; 5. Heat conduction structure.

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0021] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0023] Currently, the cooling fans of some electronic devices commonly use metal clips as a fixing structure to attach the fan to the outer surface of the heat dissipation module. This structure is simple and low in cost, but it has significant technical drawbacks. First, during installation or equipment operation, the rigid edges of the metal clips are prone to rubbing against the heat dissipation fins on the heat dissipation module due to vibration or external forces, resulting in scratches or even deformation of the fin surface.

[0024] This utility model proposes a cooling fan.

[0025] Please see Figures 1 to 3 In one embodiment of this utility model, the cooling fan 100 includes: The fan assembly 1 includes a mounting bracket 11 and a fan body 12. The mounting bracket 11 forms a mounting cavity inside, and the fan body 12 is fixed inside the mounting cavity. Heat dissipation component 2 is located on one side of mounting bracket 11; and The connecting frame 3 is located between the mounting bracket 11 and the heat dissipation component 2, and the mounting bracket 11 and the heat dissipation component 2 are detachably connected to the connecting frame 3.

[0026] The technical solution of this utility model provides a connecting frame 3 structure between the fan assembly 1 and the heat dissipation assembly 2 to connect the fan assembly 1 and the heat dissipation assembly 2. The connecting frame 3 is detachably connected to both the mounting bracket 11 and the heat dissipation assembly 2, making the assembly and disassembly of the fan assembly 1 and the heat dissipation assembly 2 faster and more convenient. The introduction of the connecting frame 3 replaces the existing solution of assembling the fan assembly 1 and the heat dissipation assembly 2 with metal wires, which not only makes installation and disassembly convenient, but also prevents the metal wires from scratching the surface of the heat dissipation assembly 2.

[0027] Specifically, the connecting frame 3 and the mounting bracket 11, as well as the connecting frame 3 and the heat dissipation component 2, both employ a snap-fit ​​connection. Flexible hooks are provided on the upper and lower edges of the connecting frame 3. Correspondingly, corresponding locking holes are provided on the mounting bracket 11 and the heat dissipation component 2 at corresponding positions to match the hooks. During installation, align the mounting bracket 11 or the heat dissipation component 2 with the connecting frame 3 and gently press to allow the hooks to slide into the locking holes. During disassembly, the release portion of the hooks can be pried open to separate the two structures. This disassembly and assembly structure requires no external tools, making operation convenient and quick. Furthermore, when it is necessary to replace with a different type of fan assembly 1, the connecting frame 3 can also be matched and installed with other fan assemblies 1 of the same size.

[0028] Of course, in other embodiments, the connecting frame 3 and the mounting bracket 11, and the connecting frame 3 and the heat dissipation component 2 are connected by magnetic attraction. Permanent magnets (such as neodymium magnets) are embedded in the contact surfaces of the connecting frame 3 and the mounting bracket 11 and the heat dissipation component 2, and the magnetism of the permanent magnet on the connecting frame 3 is different from that of the permanent magnet on the mounting bracket 11 and the heat dissipation component 2. The two structures are firmly attracted together by magnetic force. When disassembling, only a certain pulling force is required to separate them.

[0029] In the embodiments of this utility model, please refer to Figures 2 to 4 The connecting frame 3 is provided with clamping plates 31. Each clamping plate 31 is located on at least one opposite side of the connecting frame 3 and extends towards one side of the heat dissipation component 2 to clamp the opposite sides of the heat dissipation component 2. The clamping plates 31 can be located on each opposite side of the connecting frame 3, or individually on each of the four sides of the connecting frame 3, to improve the clamping force on the four sides of the heat dissipation component 2. Specifically, the clamping plates 31 can be elastic clamping arms, which are slightly retracted inwards to clamp the heat dissipation component 2. During installation, the opposite sides of the heat dissipation component 2 are aligned with the inner walls of the two clamping plates 31 and pushed in forcefully. The clamping plates 31 are stretched and deformed, and their own elastic rebound force tightly clamps the heat dissipation component 2 from both sides. During disassembly, the heat dissipation component 2 can be removed by prying the clamping plates 31 outwards. Optionally, the clamping plate 31 can also be a snap-in structure. The inner wall of the clamping plate 31 is provided with a groove, and the outer wall of the heat dissipation component 2 is provided with a snap. By pushing the heat dissipation component 2 to the bottom along the groove, the groove groove on its side will be automatically locked by the snap to prevent it from sliding out.

[0030] In the embodiments of this utility model, please refer to Figure 2 and Figure 3The heat dissipation component 2 has a locking step 21 at one end near the connecting frame 3, and a locking strip 311 is provided on the side of the clamping plate 31 facing the heat dissipation component 2, and the locking strip 311 abuts against the locking step 21. The heat dissipation component 2 may include multiple heat dissipation fins, and the locking step 21 is formed by partial recesses on the heat dissipation fins. The locking strip 311 may be a slider independently provided on the inner side of the clamping plate 31. Through the snapping force between the locking strip 311 and the locking step 21, the clamping plate 31 and the heat dissipation component 2 can be firmly clamped. Optionally, the contact surface of the locking strip 311 and the contact surface of the locking step 21 are set as matching wedges (sloping surfaces). When the heat dissipation component 2 is pushed in forcefully, the two wedge surfaces interact with each other, generating a wedge force that pulls the heat dissipation component 2 inward, and at the same time, it will cause the clamping plate 31 to open slightly, generating a large radial clamping force.

[0031] In the embodiments of this utility model, please refer to Figure 3 and Figure 4 The clamping plate 31 is provided with a flange 312, which is located at the end of the clamping plate 31 away from the mounting bracket 11 and bends away from the heat dissipation component 2. When disassembling the connecting frame 3, the flange 312 can provide a point of leverage for the user, making it easier to separate the clamping plate 31 from the heat dissipation component 2.

[0032] If the clamping plate 31 is made of metal sheet (such as stainless steel or aluminum alloy) by stamping, the flange 312 can be a right-angle or rounded flange 312 formed by bending process in mold; if the clamping plate 31 is made of engineering plastic injection molding, the flange 312 can be an integral part of the clamping plate 31, snap-fit ​​strip 311 and other structures by injection molding at one time. This injection molding process allows the flange 312 to have larger rounded corners or reinforcing ribs. Furthermore, the outer surface of the flange 312 can be provided with anti-slip texture to facilitate the separation of the clamping plate 31 from the heat dissipation component 2.

[0033] In the embodiments of this utility model, the clamping plate 31 is made of a flexible material, such as thermoplastic elastomer TPE or silicone. When the clamping plate 31 is deformed under pressure, it can perfectly fill the tiny gap between itself and the side wall of the heat dissipation component 2, and can also avoid scratching or damaging the heat dissipation component 2.

[0034] In the embodiments of this utility model, please refer to Figure 1 and Figure 6The mounting bracket 11 includes a bracket body 111 and positioning blocks 112. The bracket body 111 has an internal mounting cavity and is square in shape. The positioning blocks 112 are embedded at the four corners of the bracket body 111, and the positioning blocks 112, bracket body 111, and connecting frame 3 are detachably connected by fasteners. The bracket body 111 can be a square frame made of PP (polypropylene) or PVC (polyvinyl chloride) plastic, etc. A base is formed at the bottom of the bracket body 111 to support and fix the fan body 12. Positioning blocks 112 can also be provided at the four corners of the bracket body 111, with the positioning blocks 112 located above the base and the connecting frame 3 located below the base. This allows the positioning blocks 112, bracket body 111, and connecting frame 3 to be detachably connected by fasteners, improving the stability of the entire structure.

[0035] In the embodiments of this utility model, please refer to Figure 6 The positioning block 112, the bracket body 111, and the connecting frame 3 are all provided with interconnected locking holes 4, through which fasteners pass. The locking holes 4 can be threaded holes, and the fasteners can be bolt and nut structures or screw structures, etc. The fasteners pass through the threaded holes on the connecting frame 3, the bracket body 111, and the positioning block 112 in sequence, fixing the three independent parts into a single integrated structure by multiple fasteners, thereby improving the structural stability.

[0036] In the embodiments of this utility model, please refer to Figure 5 The connecting frame 3 is square, and it is equipped with four baffles 32 on each of its four sides. Each baffle 32 extends towards the mounting bracket 11 and clamps the four sides of the mounting bracket 11. The baffles 32 and the connecting frame 3 can be integrally injection molded or die-cast. The inner side of the baffle 32 and the outer side of the mounting bracket 11 are lightly interference-fitted. When the mounting bracket 11 is inserted into the baffle 32, its four sides are securely clamped to the inside of the baffle 32. The four baffles 32 on the four sides of the connecting frame 3 can be spaced apart, forming gaps at the four corners of the connecting frame 3 to facilitate insertion of the mounting bracket 11 into the baffle 32. The height of the baffles 32 can be the same as or less than the height of the mounting bracket 11. Specifically, the height of the baffles 32 can be adjusted according to the clamping force required by the mounting bracket 11.

[0037] In the embodiments of this utility model, please refer to Figure 1 and Figure 2The cooling fan 100 also includes a heat-conducting structure 5, which is installed through the interior of the heat dissipation assembly 2. The heat-conducting structure 5 may include multiple heat pipes. The heat dissipation assembly 2 includes multiple parallel heat dissipation fins, and the heat pipes are installed at certain intervals inside the heat dissipation fins. Each heat pipe may include a condensing end penetrating the interior of the heat dissipation fins and an evaporating end located on one side of the heat dissipation assembly 2. The heat from the heat source causes the working liquid at the evaporating end of the heat pipe to vaporize. The vapor quickly flows to the condensing end penetrating the fins, where it condenses and releases heat, transferring the heat to the heat dissipation fins. The condensed liquid flows back to the evaporating end through capillary action within the heat pipe core, completing the circulation. The cooling fan 100 blows across the heat dissipation fins to remove heat. The heat pipes may be made of copper or aluminum and are fixed inside the heat dissipation fins by welding or brazing.

[0038] This utility model also proposes an electronic device, which includes a cooling fan 100 and a device body. The specific structure of the cooling fan 100 is as described in the above embodiments. Since this electronic device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The type of electronic device is not specifically limited; for example, it can be a computer, a frequency converter, or a server.

[0039] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A cooling fan, characterized in that, The cooling fan includes: A fan assembly includes a mounting bracket and a fan body, wherein the mounting bracket has an internal mounting cavity, and the fan body is fixedly disposed within the mounting cavity; A heat dissipation component is disposed on one side of the mounting bracket; and A connecting frame is disposed between the mounting bracket and the heat dissipation component, and the mounting bracket and the heat dissipation component are detachably connected to the connecting frame.

2. The cooling fan as described in claim 1, characterized in that, The connecting frame is provided with a clamping plate, and the clamping plate is provided on at least one side of each of the opposite sides of the connecting frame and extends toward one side of the heat dissipation component to clamp the opposite sides of the heat dissipation component.

3. The cooling fan as described in claim 2, characterized in that, The heat dissipation component has a locking step at one end near the connecting frame, and the clamping plate has a locking strip on the side facing the heat dissipation component, and the locking strip abuts against the locking step.

4. The cooling fan as described in claim 2, characterized in that, The clamping plate has a flange located at the end of the clamping plate away from the mounting bracket and bent away from the heat dissipation component.

5. The cooling fan as described in claim 2, characterized in that, The clamping plate is made of flexible material.

6. The cooling fan as described in claim 1, characterized in that, The mounting bracket includes a bracket body and positioning blocks. The mounting cavity is formed inside the bracket body. The bracket body has a square structure. The positioning blocks are embedded at the four corners of the bracket body. The positioning blocks, the bracket body, and the connecting frame are detachably connected by fasteners.

7. The cooling fan as described in claim 6, characterized in that, The positioning block, the bracket body, and the connecting frame are all provided with intersecting locking holes, and the fasteners are provided through the locking holes.

8. The cooling fan as described in claim 1, characterized in that, The connecting frame is square, and a baffle is provided on the connecting frame. One baffle is provided on each of the four sides of the connecting frame. The baffle extends toward one side of the mounting bracket and clamps the four sides of the mounting bracket.

9. The cooling fan as described in any one of claims 1 to 8, characterized in that, The cooling fan also includes a heat-conducting structure, which is disposed throughout the heat dissipation assembly.

10. An electronic device, characterized in that, The electronic device includes a cooling fan as claimed in any one of claims 1 to 9.

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