Assembled cooling fan

Abstract

The utility model discloses an assembled cooling fan, which relates to the field of cooling design and comprises at least one radiator, at least one first fan and at least one second fan. A heat conduction plane is formed on the bottom face of the radiator, a plurality of radiating fins arranged at intervals are formed in the radiator, and the first fan is detachably installed at the upper end of the radiator. A cylinder is formed in the middle of the radiator, and a plurality of radiating fins are arranged and formed on the outer wall of the cylinder in a circular array mode. A plurality of ventilation grooves are formed in the radiator, the ventilation grooves penetrate through the cooling fins from left to right, the second fan is detachably installed on the left side of the radiator, and an air outlet of the second fan is aligned with the ventilation grooves to blow air; compared with the prior art, the LED lamp has the five-stage heat dissipation effect through different assembly modes, the heat dissipation performance of the LED lamp can be increased stage by stage, and the LED lamp can be suitable for different application scenes.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation design, and in particular to a modular cooling fan. Background Technology

[0002] With the rapid development of electronic technology, the operating speed of heat-generating electronic components such as central processing units is getting faster and faster, and the heat generated during their operation is also increasing accordingly. In order to dissipate this heat and ensure the normal operation of electronic components, the industry uses fans to cool electronic components.

[0003] For example, the prior art (publication number: CN104100567A, publication date: 2014.10.15) discloses a cooling fan. When the cooling fan is working, the blades are subjected to centrifugal force and open relative to the rotor frame, so that an airflow channel is formed between adjacent blades. When the cooling fan stops working, the blades close together and close relative to the rotor frame to prevent dust or small flying insects from the outside from flying into the fan.

[0004] However, the above solutions and most cooling fans on the market use a single cooling fan, whose heat dissipation effect can be adjusted according to the power of the cooling fan. Since frequent changes in motor power will affect the service life of the motor, the motors used in the cooling fans in the existing solutions are of very high quality. In addition, the existing cooling fans cannot be assembled according to actual heat dissipation needs, resulting in a narrow range of application and poor versatility for the same cooling fan. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model provides a technical solution that can solve the above problems.

[0006] A modular cooling fan includes at least one radiator, at least one first fan, and at least one second fan. The bottom surface of the radiator is formed with a heat-conducting plane, and a plurality of spaced-apart cooling fins are formed inside the radiator. The first fan is detachably mounted on the upper end of the radiator. A cylinder is formed in the middle of the radiator, and a plurality of cooling fins are arranged in a circular array on the outer wall of the cylinder. A plurality of ventilation slots are formed inside the radiator, and the ventilation slots extend from left to right through the plurality of cooling fins. The second fan is detachably mounted on the left side of the radiator, and the air outlet of the second fan blows air into the ventilation slots.

[0007] Furthermore: the heat sink has mounting holes formed at all four ends on its upper side; the first fan includes a bracket, a motor, and fan blades; the four ends of the bracket are detachably installed in the mounting holes of the heat sink by screws; the motor is fixedly installed in the middle of the bracket; and the motor drives the fan blades to rotate.

[0008] Furthermore: the fan blade includes a cylindrical component and several blades, the sidewalls of the blades are arranged vertically, and the several blades are arranged in a circular array on the outside of the cylindrical component. The bottom edge of the blades and the top edge of the heat dissipation fins are arranged parallel to each other vertically.

[0009] Furthermore, the blades are formed with chamfers to avoid obstacles, and the fan blades rotate within the support by avoiding the chamfers.

[0010] Furthermore: extension plates are detachably installed at the two mounting holes on the left side by screws, with the left end of the extension plate positioned above the second fan, and the second fan is detachably installed on the two extension plates by screws.

[0011] Furthermore, the second fan has mounting grooves formed on both the front and rear sides, and the extension pieces are fitted with corresponding gaps and can be detachably installed in the mounting grooves by screws.

[0012] Furthermore: the bottom side of the second fan is formed with an air guide cavity, and the right side of the air guide cavity is formed with an air outlet, which is located to the left of several ventilation slots inside the radiator.

[0013] Furthermore, the bottom side of the air guiding cavity is positioned higher than the bottom side of the heat-conducting plane.

[0014] Furthermore: a gasket is provided between the two mounting holes on the right side and the bracket. The thickness of the gasket is the same as the thickness of the extension piece. The screws of the mounting bracket pass through the gasket and are locked in the mounting holes.

[0015] Furthermore, the extension plate is locked between the heat sink and the bracket by screws.

[0016] Furthermore, the bracket has heat dissipation holes formed on it, and the motor is located below the heat dissipation holes.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. Use the heat-conducting surface at the bottom of the heat sink to attach to the heat-generating parts of the electronic device. Thermal grease can be filled between the heat-generating parts and the heat-conducting surface to achieve rapid heat transfer.

[0019] 2. When the first fan is turned on, it can drive the hot airflow on several heat sink fins to flow, thereby carrying away some of the heat;

[0020] 3. When the second fan is turned on, airflow can be formed in the ventilation slots on several heat dissipation fins, further removing heat from the area around the heatsink;

[0021] 3. It has a five-level heat dissipation effect, with the heat dissipation performance increasing step by step, making it suitable for different application scenarios.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] 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 these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 yes Figure 1 A structural diagram from another perspective;

[0026] Figure 3 This is an exploded structural diagram of the present invention;

[0027] Figure 4 This is a schematic diagram of the radiator structure.

[0028] The figure shows: 1. Heat sink; 1.1. Heat-conducting plane; 1.2. Heat dissipation fins; 1.3. Cylinder; 1.4. Ventilation slot; 2. First fan; 2.1. Bracket; 2.2. Motor; 2.3. Fan blades; 2.31. Cylindrical component; 2.32. Blades; 3. Second fan; 4. Mounting hole; 5. Chamfer; 6. Extension plate; 7. Mounting slot; 8. Air guide cavity; 9. Air outlet; 10. Gasket; 11. Heat dissipation hole. Detailed Implementation

[0029] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0030] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0031] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] like Figure 1-4 As shown, this utility model discloses a modular cooling fan, comprising at least one radiator 1, at least one first fan 2, and at least one second fan 3. The radiator 1 has a heat-conducting plane 1.1 formed on its bottom surface, and a plurality of spaced-apart cooling fins 1.2 formed inside the radiator 1. The first fan 2 is detachably mounted on the upper end of the radiator 1. A cylinder 1.3 is formed in the middle of the radiator 1, and a plurality of cooling fins 1.2 are arranged in a circular array on the outer wall of the cylinder 1.3. A plurality of ventilation slots 1.4 are formed inside the radiator 1, and the ventilation slots 1.4 extend from left to right through the plurality of cooling fins 1.2. The second fan 3 is detachably mounted on the left side of the radiator 1, and the air outlet 9 of the second fan 3 blows air into the ventilation slots 1.4.

[0035] The principle is as follows: the heat-conducting plane 1.1 at the bottom of the heat sink 1 is used to contact the heat-generating part of the electronic device. Thermal grease can be filled between the heat-generating part and the heat-conducting plane 1.1 to achieve rapid heat transfer. When the first fan 2 is turned on, it can drive the hot airflow on several heat sink fins 1.2 to flow, thereby removing some of the heat. When the second fan 3 is turned on, airflow can be formed in the ventilation slots 1.4 on several heat sink fins 1.2 to further remove the heat around the heat sink 1. When the fan is not turned on, the heat is directly conducted, which is the first stage of heat dissipation. When the first fan 2 is turned on, it is the second stage of heat dissipation. When the second fan 3 is turned on, it is the third stage of heat dissipation. When the first fan 2 and the second fan 3 are turned on, it is the fourth stage of heat dissipation. When multiple heat sinks 1, multiple first fans 2 and multiple second fans 3 are used, it is the fifth stage of heat dissipation. The heat dissipation effect increases step by step, which can be applied to different application scenarios.

[0036] Furthermore, the heat sink 1 has mounting holes 4 formed at all four ends on its upper side. The first fan 2 includes a bracket 2.1, a motor 2.2, and fan blades 2.3. The four ends of the bracket 2.1 are detachably installed in the mounting holes 4 of the heat sink 1 by screws. The motor 2.2 is fixedly installed in the middle of the bracket 2.1 and drives the fan blades 2.3 to rotate. This enables the fan blades 2.3 to be quickly installed and removed, making it suitable for different scenarios.

[0037] Furthermore, the fan blade 2.3 includes a cylindrical component 2.31 and several blades 2.32. The sidewalls of the blades 2.32 are vertically arranged, and the several blades 2.32 are arranged in a circular array on the outside of the cylindrical component 2.31. The bottom edge of the blades 2.32 and the top edge of the heat dissipation fins 1.2 are arranged parallel to each other vertically. The vertical arrangement of the blades 2.32 can quickly remove the heat around the several heat dissipation fins 1.2 when they rotate, achieving the effect of rapid heat dissipation.

[0038] Furthermore, the blade 2.32 is formed with a chamfer 5, and the fan blade 2.3 rotates within the bracket 2.1 by means of the chamfer 5; this can effectively reduce the space occupied by the fan blade 2.3, thereby reducing the thickness of the first fan 2.

[0039] Furthermore: extension plates 6 are detachably installed at the two mounting holes 4 on the left side by screws. The left end of the extension plate 6 is positioned above the second fan 3. The second fan 3 is detachably installed on the two extension plates 6 by screws. The extension plates 6 facilitate the installation and removal of the second fan 3.

[0040] Furthermore, the second fan 3 has mounting grooves 7 formed on both its front and rear sides, and the extension pieces 6 are fitted with corresponding gaps and can be detachably installed in the mounting grooves 7 by screws; this ensures the installation and positioning of the second fan 3, and allows for quick alignment before the screws are locked, simplifying the installation process.

[0041] Furthermore: the bottom side of the second fan 3 is formed with an air guide cavity 8, and the right side of the air guide cavity 8 is formed with an air outlet 9. The air outlet 9 is located to the left of several ventilation slots 1.4 inside the heat sink 1. The second fan 3 can use the air guide cavity 8 to blow air into the ventilation slots 1.4, thereby allowing the airflow to enter the gaps between several heat sink fins 1.2, achieving the technical effect of quickly removing heat.

[0042] Furthermore, the bottom side of the air-guiding cavity 8 is set higher than the bottom side of the heat-conducting plane 1.1; it can avoid interference with electronic components on the circuit board and is suitable for different scenarios.

[0043] Furthermore: a gasket 10 is provided between the two mounting holes 4 on the right side and the bracket 2.1. The thickness of the gasket 10 is the same as the thickness of the extension piece 6. The screws of the mounting bracket 2.1 pass through the gasket 10 and are locked in the mounting holes 4. The extension piece 6 is locked between the heat sink 1 and the bracket 2.1 by screws, so that the mounting height of the left and right sides of the bracket 2.1 is consistent.

[0044] Furthermore, the bracket 2.1 has heat dissipation holes 11 formed on it, and the motor 2.2 is located below the heat dissipation holes 11; this can improve the heat dissipation speed of the motor 2.2 and ensure that the motor 2.2 can maintain stable operation for a long time.

[0045] This embodiment does not impose any limitation on the shape, material, structure, etc. of this utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.

Claims

1. A modular cooling fan, characterized in that: Includes at least one heat sink, at least one first fan and at least one second fan; The bottom surface of the radiator is formed with a heat-conducting plane, and a number of spaced heat dissipation fins are formed inside the radiator. The first fan is detachably installed on the upper end of the radiator. The radiator has a cylindrical body formed in the middle, and several heat dissipation fins are arranged in a circular array on the outer wall of the cylinder. The radiator has several ventilation slots formed inside, and several ventilation slots are arranged to pass through several heat dissipation fins from left to right. The second fan is detachably installed on the left side of the radiator, and the air outlet of the second fan is directed to blow air into several ventilation slots.

2. The modular cooling fan according to claim 1, characterized in that: The heat sink has mounting holes formed at all four ends on its upper side. The first fan includes a bracket, a motor, and fan blades. The four ends of the bracket are detachably installed in the mounting holes of the heat sink by screws. The motor is fixedly installed in the middle of the bracket and drives the fan blades to rotate.

3. The modular cooling fan according to claim 2, characterized in that: Extension plates are detachably mounted on the two mounting holes on the left side using screws. The left end of the extension plate is positioned above the second fan, and the second fan is detachably mounted on the two extension plates using screws.

4. The modular cooling fan according to claim 3, characterized in that: The second fan has mounting grooves formed on both the front and rear sides. The extension pieces are fitted with corresponding gaps and can be detachably installed in the mounting grooves with screws.

5. A modular cooling fan according to any one of claims 1 or 4, characterized in that: The bottom side of the second fan has an air guide cavity, and the right side of the air guide cavity has an air outlet, which is located to the left of several ventilation slots inside the radiator.

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