Heat dissipation fan easy to disassemble

Abstract

The utility model provides a heat dissipation fan easy to disassemble, which comprises a base, a micro motor is fixedly arranged on the base, the micro motor is in driving connection with the fan, the fan comprises a rotor seat and fan blades, the fan blades are provided with connecting parts, the connecting parts are provided with inserting grooves and connecting plates, the outer side of the rotor seat is provided with inserting blocks and assembling holes, nuts are fixedly arranged in the assembling holes, and the inserting blocks are connected with the inserting grooves. And the connecting plate is screwed and fixed with a nut through a bolt. When the fan needs to be cleaned, the bolts are screwed out through a screwdriver, then the fan blades on the fan are taken out from the rotor base one by one along the inserting grooves and the inserting blocks, a user can conveniently clean the fan blades, the fan blades are prevented from being broken, and the cooling fan is prevented from being damaged.

Description

Technical Field

[0001] The utility model belongs to the technical field of cooling fans, and particularly relates to a detachable cooling fan. Background Art

[0002] During the operation of electronic devices, electric power is consumed and heat is generated. When the heat is too concentrated, it will cause the device temperature to be too high, which may cause damage. Therefore, it is necessary to effectively dissipate the heat of electronic devices. Common heat dissipation methods include air cooling and water cooling. Among them, air cooling usually uses a cooling fan to accelerate the dissipation of heat to the air by enhancing the air flow rate.

[0003] When the cooling fan is running, dust in the air easily adheres to the surface of the fan blades, causing the fan blades to become dirty. Therefore, it is very important to regularly clean the cooling fan. However, since the fan blades are installed in the fan frame and the internal space is limited, it is very difficult to clean some gaps and corners, making the cleaning work very inconvenient. Moreover, when cleaning the fan blades, it is easy to break the fan blades, resulting in damage to the cooling fan.

[0004] Chinese Utility Model Patent No. CN217950733U discloses a cooling fan that is easy to clean, which belongs to the technical field of cooling fans. Specifically, it is a cooling fan that is easy to clean, including a fan frame, a support frame, a micro motor, and a fan blade assembly. A connecting seat is fixedly installed on the output shaft of the micro motor, an inner clamping block is arranged on the side of the connecting seat, a mounting seat is fixedly installed on the inner side of the fan blade assembly, and an outer clamping block is arranged on the side of the mounting seat. For this cooling fan that is easy to clean, by pressing the pressing block to move inward, the wedge block can be inserted between the inner clamping block and the outer clamping block, so that the inner clamping block and the outer clamping block can be quickly separated, facilitating the quick removal of the fan blade assembly from the micro motor, and the fan blade assembly can be taken out of the fan frame for cleaning, no longer being restricted by the internal space of the fan frame, and the cleaning is more convenient. However, during the cleaning process of the fan blades, it is easy to break the fan blades, resulting in damage to the cooling fan. Summary of the Utility Model

[0005] The purpose of the present utility model is to provide a detachable cooling fan to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present utility model provides the following technical solution: A detachable cooling fan includes a base, a micro motor is fixedly installed on the base, the micro motor is drivingly connected to a fan, the fan includes a rotor seat and fan blades, the fan blades are provided with a connecting portion, the connecting portion is provided with a slot and a connecting plate, the outer side of the rotor seat is provided with a plug-in block and an assembly hole, a nut is fixedly installed in the assembly hole, and the connecting plate is screwed and fixed to the nut through a bolt.

[0007] Preferably, the plug-in block is symmetrically provided with clamping protrusions.

[0008] Preferably, the connecting portion is provided with a structural groove.

[0009] Preferably, the nut is made of metal, and the rotor seat and the nut are integrally injection-molded.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] The fan of the present utility model includes a rotor seat and a fan blade. The fan blade is provided with a connecting portion. The connecting portion is provided with a slot and a connecting plate. The outer side of the rotor seat is provided with a plug-in block and an assembly hole. The connecting portion is fixedly connected to the plug-in block of the rotor seat through the slot, so that the fan blade is stably connected to the rotor seat. A nut is fixedly installed in the assembly hole, and the connecting plate is screwed and fixed to the nut through a bolt, further improving the connection stability between the fan blade and the rotor seat. When the fan needs to be cleaned, the bolt is unscrewed with a screwdriver, and then the fan blades on the fan are taken out one by one from the rotor seat along the slot and the plug-in block, which is convenient for the user to clean the fan blades, prevents the fan blades from breaking, and prevents the cooling fan from being damaged. Description of the Drawings

[0012] Figure 1 is the first perspective structural view of the present utility model.

[0013] Figure 2 is the second perspective structural view of the present utility model.

[0014] Figure 3 is the first perspective structural view of the fan of the present utility model.

[0015] Figure 4 is the second perspective structural view of the fan of the present utility model.

[0016] Figure 5 is the structural view of the rotor seat of the present utility model.

[0017] Figure 6 is the structural view of the fan blade of the present utility model.

[0018] Reference numerals in the drawings: base 1, micro motor 2, fan 3, rotor seat 4, fan blade 5, connecting portion 6, slot 7, connecting plate 8, plug-in block 9, assembly hole 10, nut 11, bolt 12, clamping convex block 13, structural groove 14. Detailed Embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] Embodiment 1:

[0021] As Figures 1-6 shown, an easily detachable cooling fan provided by the present utility model includes a base 1, a micro motor 2 is fixedly installed on the base 1, the micro motor 2 is drivingly connected to a fan 3, the fan 3 includes a rotor seat 4 and fan blades 5, the fan blades 5 are provided with a connecting portion 6, the connecting portion 6 is provided with a slot 7 and a connecting plate 8, the outer side of the rotor seat 4 is provided with a plug-in block 9 and an assembly hole 10, a nut 11 is fixedly installed in the assembly hole 10, and the connecting plate 8 is screwed and fixed to the nut 11 through a bolt 12. The plug-in block 9 is symmetrically provided with clamping protrusions 13. The connecting portion 6 is provided with a structural groove 14. The nut 11 is made of metal, and the rotor seat 4 and the nut 11 are integrally formed by injection molding.

[0022] Through the above technical solution, the fan 3 of the present utility model includes a rotor seat 4 and fan blades 5, the fan blades 5 are provided with a connecting portion 6, the connecting portion 6 is provided with a slot 7 and a connecting plate 8, the outer side of the rotor seat 4 is provided with a plug-in block 9 and an assembly hole 10, the connecting portion 6 is fixedly connected to the plug-in block 9 of the rotor seat 4 through the slot 7, so that the fan blades 5 are stably connected to the rotor seat 4, a nut 11 is fixedly installed in the assembly hole 10, and the connecting plate 8 is screwed and fixed to the nut 11 through a bolt 12, further improving the connection stability between the fan blades 5 and the rotor seat 4. When it is necessary to clean the fan 3, the bolt 12 is unscrewed with a screwdriver, and then the fan blades 5 on the fan 3 are taken out one by one from the rotor seat 4 along the slot and the plug-in block 9, which is convenient for the user to clean the fan blades 5, prevents the fan blades 5 from breaking, and prevents the cooling fan 3 from being damaged.

[0023] Embodiment 2:

[0024] As Figures 1-6As shown in the figure, a micro motor 2 is fixedly installed on the base 1 of the present utility model. The base 1 serves as the support part of the fan 3, and is used for the micro motor 2 and fixing the cooling fan 3 on the computer mainframe. The micro motor 2 is drivingly connected to the fan 3. The micro motor 2 drives the fan 3 to rotate. The micro motor 2 serves as the driving source and can provide the necessary power to make the fan 3 rotate to complete the heat dissipation process. The fan 3 includes a rotor seat 4 and fan blades 5. The fan blades 5 are fixedly installed on the rotor seat 4. The fan blades 5 are provided with a connecting part 6, and the fan blades 5 are fixedly installed on the rotor seat 4 through the connecting part 6. The connecting part 6 is provided with a slot 7 and a connecting plate 8. The outer side of the rotor seat 4 is provided with a plug-in block 9 and an assembly hole 10. The rotor seat 4 is provided with the plug-in block 9 and the assembly hole 10 for installing the fan blades 5, ensuring that the fan blades 5 can be reliably fixed thereon. Through the combination of the slot 7 and the connecting plate 8, the connecting part 6 forms a stable connection, enabling the fan blades 5 to remain stable during operation and reducing vibration. The connecting part 6 is fixedly matched with the plug-in block 9 of the rotor seat 4 through the slot 7, so that the fan blades 5 are firmly connected to the rotor seat 4, ensuring the firm connection between the fan blades 5 and the rotor seat 4 and preventing them from falling off during high-speed operation. The bolt 12 connection between the nut 11 and the connecting plate 8 provides additional stability for this connection, ensuring the safety of the fan blades 5 during operation. The airflow generated during the rotation of the fan blades 5 can not only effectively take away the heat generated by the electronic device, but also keep the temperature inside the device within a reasonable range, thereby extending the service life of the device. A nut 11 is fixedly installed in the assembly hole 10, and the connecting plate 8 is screwed and fixed to the nut 11 through the bolt 12, further improving the connection stability between the connecting part 6 and the rotor seat 4, making the fan blades 5 firmly connected to the rotor seat 4 and preventing the fan blades 5 from falling off during rotation. The matching of the slot 7 and the plug-in block 9 fixes the detachable characteristic of the cooling fan 3, making it more convenient during maintenance and cleaning. Over time, dust and impurities in the air will gradually adhere to the surface of the fan blades 5, affecting their heat dissipation efficiency. Regularly cleaning the fan blades 5 of the fan 3 is crucial for maintaining the good heat dissipation performance of the device. Traditional fans 3 often face difficulties in disassembly during cleaning, while the design of this detachable cooling fan 3 effectively solves this problem. Users only need to perform simple operations to disassemble the fan blades 5 from the rotor seat 4, clean them and then reassemble them, greatly facilitating daily maintenance. The working principle of the cooling fan 3 is based on the flow of air. The rotation of the fan blades 5 can guide the air to flow in and out, thus forming an air current. Under the action of this air current, the heat on the surface of the electronic device is transferred to the air by convection. The shape, size and rotation speed of the fan blades 5 will all affect the speed and direction of the air current.

[0025] The plug-in block 9 of the utility model is symmetrically provided with a snap-in protrusion 13. The structure of this structure enables the plug-in block 9 of the rotor seat 4 to form a stable connection with the slot 7 of the connecting part 6 through the snap-in protrusion 13. The combination of the snap-in protrusion 13 and the slot 7 provides additional mechanical stability, effectively improving the connection reliability between the fan blade 5 and the rotor seat 4. During the operation of the cooling fan 3, the rotation of the fan blade 5 will generate a certain centrifugal force and vibration. If the connection is not stable enough, the fan blade 5 may fall off during high-speed operation, thereby affecting the heat dissipation efficiency and may even cause damage to the electronic equipment. The snap-in protrusion 13 of the plug-in block 9 is a key component of the structure. Its symmetrical design ensures that the fan blade 5 can maintain balance during rotation and reduce additional vibration caused by asymmetric loads. The connection between the rotor seat 4 and the connecting part 6 forms a mechanical locking relationship through the snap-in protrusion 13, which can effectively resist relative displacement under the action of external forces. The design of the slot 7 also provides a suitable space for snap-in, making the fan blade 5 more convenient during installation and removal. When the fan 3 is running, the fan blade 5 rotates rapidly due to the drive of the micro motor 2, and the airflow generated will effectively take away the heat generated by the electronic device. The stability of the fan blade 5 is crucial to the heat dissipation efficiency. The interaction between the clamping protrusion 13 and the slot 7 can minimize the stress concentration caused by the rotation, prevent the connection point between the fan blade 5 and the rotor seat 4 from loosening, and thus ensure that the fan blade 5 can consistently and efficiently dissipate heat. Through this clamping method, the connection between the rotor seat 4 and the connecting part 6 forms a reliable mechanical structure that can remain stable during the service life of the fan 3. Even during long-term operation, stress changes caused by temperature changes and environmental factors will not have a significant impact on the connection. This reliability is an important guarantee for the normal operation of electronic equipment, especially when working under high load and high temperature environment, the stability of the fan blade 5 will directly affect the heat dissipation effect and the safety of the equipment. In addition, this structure also shows superiority in maintenance. When the fan blade 5 needs to be cleaned, the user can remove the fan blade 5 from the rotor seat 4 through simple operation without using complicated tools or operations. After cleaning, the fan blade 5 is re-fixed to the rotor seat 4 through the connection between the plug block 9 and the clamping protrusion 13. This convenient disassembly and installation method greatly improves the maintenance efficiency of the fan 3 and reduces the time and energy consumption of the user during the maintenance process.

[0026] The connecting part 6 of the present utility model is provided with a structural groove 14. The design of the structural groove 14 brings many performance improvements to the connecting part 6. The structural groove 14 can reduce the weight of the connecting part 6. During the manufacturing process, using less material can significantly reduce the weight of the entire fan 3, thereby improving the operating performance of the fan 3. A lighter fan 3 generates relatively less centrifugal force during high-speed rotation, which helps to reduce the vibration and noise of the fan 3 during operation. This advantage is particularly important in the practical application of electronic devices. Nowadays, as miniaturization and lightweight become increasingly popular trends, reducing weight will directly affect the overall performance and user experience of the device. In addition, the presence of the structural groove 14 can reduce the consumption of materials during the production process. In traditional designs, the material usage of the connecting part 6 is often large, increasing production costs and material waste. By setting the structural groove 14 in the connecting part 6, manufacturers can effectively reduce material usage while maintaining the required strength and rigidity of the connecting part 6. This material optimization not only reduces production costs but also contributes to environmental protection, meeting the current society's demand for sustainable development. While improving the material utilization rate, the design of the structural groove 14 also enhances the structural stability of the connecting part 6. The geometric shape of the structural groove 14 can effectively disperse the stress applied to the connecting part 6 during use, enhancing the bending and shear resistance of the connecting part 6. In this way, the connecting part 6 will not show material fatigue or fracture during long-term operation, ensuring the stable connection between the fan blade 5 and the rotor seat 4. A reliable connection is crucial for the normal operation of the cooling fan 3, effectively preventing the fan blade 5 from falling off during high-speed rotation, thereby ensuring the safety and heat dissipation efficiency of the device. From the production perspective, the design of the structural groove 14 can also simplify the processing technology. During the manufacturing process of the connecting part 6, adding the structural groove 14 can reduce the required processing steps and processing time. This simplification not only improves production efficiency but also provides manufacturers with more cost-effective products in the highly competitive market, increasing market competitiveness.

[0027] The nut 11 of the present utility model is made of metal, and the rotor seat 4 and the nut 11 are integrally injection molded. This technology integrates the metal nut 11 with the rotor seat 4 to form a whole, providing significant advantages. During the disassembly and installation process, the metal nut 11 can closely cooperate with the rotor seat 4 to form a firm connection. The rigidity and durability of the metal enable this connection to maintain stability during long-term use, reducing the problem of connection loosening caused by wear. In the actual application of the cooling fan 3, the fan blade 5 needs to be regularly disassembled for cleaning and maintenance. The connection between the fan blade 5 and the rotor seat 4 is achieved through the cooperation of the bolt 12 and the nut 11. During the repeated disassembly of the fan blade 5, the material of the nut 11 and its integrally formed structure with the rotor seat 4 can effectively prevent the slipping of the bolt 12 and the rotor seat 4. Slipping not only causes unstable installation but may also damage the nut 11 and the bolt 12 during reassembly, affecting the safe operation of the fan blade 5. The integrally formed structure provides higher precision and consistency. During the manufacturing process, the injection molding process of the rotor seat 4 and the nut 11 can ensure the best fit between the two. This fit can reduce potential problems caused by improper assembly, ensure the stable state of the fan blade 5 during operation, and thus improve the overall performance of the cooling fan 3. Especially during high-speed operation, the stability of the connection directly affects the heat dissipation efficiency. The stability of the fan blade 5 will directly affect the air flow intensity generated by the fan 3, and thus affect the heat dissipation effect of the device. In terms of maintenance, when the user disassembles the fan blade 5, due to the integrated design of the nut 11 and the rotor seat 4, the operation process becomes more convenient. The user only needs to use a tool to turn the bolt 12 to smoothly disassemble and install the fan blade 5 without worrying about the displacement or loosening of the nut 11. This convenient maintenance method can save the user's time and energy and improve the user experience. From the production perspective, adopting the integrally injection molding process can reduce production costs. By reducing the number of components, the manufacturer can simplify the assembly process during production, reduce the production difficulty. At the same time, this process can improve the consistency and stability of the product, reducing quality fluctuations caused by human factors. The design of the integral structure improves production efficiency and can better meet market demands.

[0028] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0029] As described above, it is only used to illustrate the technical solution of the present utility model rather than to limit it. Any other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the present utility model shall be covered within the scope of the claims of the present utility model as long as they do not depart from the spirit and scope of the technical solution of the present utility model.

Claims

1. An easily detachable cooling fan, comprising a base, a micro motor fixedly installed on the base, and the micro motor is drivingly connected to a fan, characterized in that, The fan includes a rotor seat and fan blades. The fan blades are provided with a connecting portion, and the connecting portion is provided with a slot and a connecting plate. The outer side of the rotor seat is provided with a plug-in block and an assembly hole, and a nut is fixedly installed in the assembly hole. The connecting plate is screwed and fixed to the nut through a bolt.

2. The detachable cooling fan according to claim 1, wherein, The plug-in block is symmetrically provided with clamping protrusions.

3. The detachable cooling fan according to claim 1, characterized in that, The connecting portion is provided with a structural groove.

4. The detachable heat dissipation fan according to claim 1, characterized in that, The nut is made of metal, and the rotor seat and the nut are integrally formed by injection molding.

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