Composite upper cover structure of heat dissipation fan

Abstract

The utility model discloses a composite upper cover structure of heat dissipation fan belongs to heat dissipation fan technical field, including the upper cover body, the inside of upper cover body is provided with the air inlet hole no.

Description

Technical Field

[0001] This utility model belongs to the field of cooling fan technology, specifically relating to a composite top cover structure for a cooling fan. Background Technology

[0002] The cooling fan of a laptop is a key heat dissipation component. It actively rotates to accelerate the air circulation inside and outside the chassis: it draws in cool external air, which flows through the heat dissipation fins that absorb heat from the CPU, GPU and other core hardware, and then expels the hot air carrying heat from the chassis. This reduces the internal temperature, ensures that the hardware operates within a suitable range, and avoids performance degradation, lag, crashes or even hardware damage caused by overheating, thereby ensuring the stable use and lifespan of the laptop.

[0003] However, whether the core heat dissipation function of the cooling fan can be fully utilized depends not only on its own rotation efficiency, but also on the design of its matching top cover structure. The top cover not only needs to guide airflow to form an orderly air channel to improve air intake efficiency, but also needs to have protective capabilities to prevent the intrusion of external foreign objects.

[0004] However, the existing cooling fan cover lacks a reasonable airflow design, and the chaotic airflow path leads to low air intake efficiency; at the same time, the lack of an effective barrier structure makes it easy for foreign objects to enter the fan, causing wear and tear on internal components. Utility Model Content

[0005] The purpose of this invention is to provide a composite top cover structure for a cooling fan to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a composite upper cover structure for a cooling fan, comprising an upper cover body, an air inlet hole one inside the upper cover body, a connecting platform fixedly connected to the outer side of the air inlet hole one and located at the top of the upper cover body, the outer surface of the connecting platform being provided with spiral patterns, a connecting cover being threadedly connected to the outer side of the connecting platform via the spiral patterns, a plurality of partition strips arranged in a circular array fixedly connected to the top of the connecting cover, an air inlet hole two being opened at one end of each partition strip close to each other and located inside the connecting cover, a support plate fixedly connected to the top of each partition strip, and a barrier grille fixedly connected to one side of each partition strip close to each other. This utility model optimizes the airflow path and improves air intake efficiency through the air duct formed by the partition strips; the barrier grille effectively blocks foreign objects, protects the internal components of the fan, and reduces wear; the support plate enhances the structural stability of the partition strips, preventing them from deforming under airflow impact; the threaded connection between the connecting cover and the connecting platform has anti-slip protrusions, facilitating disassembly and maintenance; the air inlet hole two communicates with the air inlet hole one, ensuring smooth airflow and improving heat dissipation.

[0007] In a preferred embodiment, the second air inlet is connected to the first air inlet, an air duct is formed between the partition bars, and the barrier grille is fixedly installed inside the air duct.

[0008] In a preferred embodiment, the bottom of the connecting cover is provided with a reverse thread adapted to the spiral pattern, and the side surface of the connecting cover is provided with anti-slip protrusions.

[0009] In a preferred embodiment, the upper cover includes a protective layer, a sound insulation layer is disposed below the protective layer, and a heat-conducting layer is disposed below the sound insulation layer.

[0010] In a preferred embodiment, the protective layer is made of ASA engineering plastic, the sound insulation layer is made of PC / ABS alloy, and the heat-conducting layer is made of aluminum alloy.

[0011] In a preferred embodiment, the side surface of the upper cover is provided with a plurality of connecting protrusions, and each connecting protrusion has a threaded hole inside.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention optimizes airflow path and improves air intake efficiency through the air duct formed by the partition strip; the barrier effectively blocks foreign objects, protects the internal components of the fan, and reduces wear; the support plate enhances the structural stability of the partition strip and prevents it from deforming under airflow impact; the threaded connection between the connecting cover and the connecting platform has anti-slip protrusions, facilitating disassembly and maintenance; the second air inlet is connected to the first air inlet, ensuring smooth airflow and improving heat dissipation.

[0014] This invention utilizes an ASA engineering plastic protective layer with excellent weather resistance and impact resistance, extending the service life of the top cover; a PC / ABS alloy sound insulation layer with good sound insulation effect, reducing fan noise and improving user comfort; and an aluminum alloy heat-conducting layer with excellent thermal conductivity, accelerating heat dissipation and improving fan cooling efficiency. The three layers work together to give the top cover protection, sound insulation, and heat dissipation functions. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the overall exploded three-dimensional structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the overall exploded two-dimensional structure of this utility model;

[0018] Figure 4 This is a cross-sectional three-dimensional structural diagram of the upper cover component of this utility model.

[0019] In the diagram: 1. Top cover; 2. Air inlet 1; 3. Connecting platform; 4. Spiral pattern; 5. Connecting cover; 6. Separator strip; 7. Air inlet 2; 8. Support plate; 9. Barrier grille; 10. Connecting protrusion; 11. Threaded hole; 101. Protective layer; 102. Sound insulation layer; 103. Heat-conducting layer. Detailed Implementation

[0020] The present invention will be further described below with reference to the embodiments.

[0021] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0022] Please see Figure 1-4 This utility model provides a composite top cover structure for a cooling fan, including a top cover body 1. An air inlet 2 is provided inside the top cover body 1. A connecting platform 3 is fixedly connected to the outside of the air inlet 2 and located at the top of the top cover body 1. A spiral pattern 4 is provided on the outer surface of the connecting platform 3. A connecting cover 5 is threadedly connected to the outside of the connecting platform 3 via the spiral pattern 4. Several partition strips 6 arranged in a circular array are fixedly connected to the top of the connecting cover 5. An air inlet 7 is provided at one end of each partition strip 6 that is close to each other and located inside the connecting cover 5. A support plate 8 is fixedly connected to the top of each partition strip 6. A barrier grille 9 is fixedly connected to one side of each partition strip 6 that is close to each other. The air inlet 7 communicates with the air inlet 2, and an air duct is formed between the partition strips 6. The barrier grille 9 is fixedly installed inside the air duct. The bottom of the connecting cover 5 is provided with a reverse thread adapted to the spiral pattern 4, and the side surface of the connecting cover 5 is provided with anti-slip protrusions.

[0023] When the device is running, the external airflow sequentially enters the fan through the air duct formed between the partition bars 6, the second air inlet 7 on the connecting cover 5, and the first air inlet 2 on the upper cover 1. The partition bars 6 guide the airflow, the barrier grille 9 prevents foreign objects from entering the air duct, the support plate 8 supports and reinforces the partition bars 6, and the connecting cover 5 is connected to the spiral thread 4 on the outside of the connecting platform 3 through the reverse thread of the bottom adapter spiral thread 4, achieving a stable assembly with the upper cover 1. In this utility model, the air duct formed by the partition bars 6 can optimize the airflow path and improve the air intake efficiency; the barrier grille 9 effectively blocks foreign objects, protects the internal components of the fan, and reduces wear; the support plate 8 enhances the structural stability of the partition bars 6 and prevents them from deforming under the impact of airflow; the threaded connection between the connecting cover 5 and the connecting platform 3 has anti-slip protrusions, which facilitate disassembly and maintenance; the second air inlet 7 is connected to the first air inlet 2 to ensure smooth airflow and improve heat dissipation.

[0024] Specifically, such as Figure 4 As shown, the upper cover 1 includes a protective layer 101, a sound insulation layer 102 is provided below the protective layer 101, and a heat-conducting layer 103 is provided below the sound insulation layer 102; the protective layer 101 is made of ASA engineering plastic, the sound insulation layer 102 is made of PC / ABS alloy, and the heat-conducting layer 103 is made of aluminum alloy.

[0025] The protective layer 101 of the upper cover 1 is located on the outermost layer and is in direct contact with the external environment, playing a role in resisting external impact and corrosion; the middle sound insulation layer 102 can absorb the noise generated during the operation of the fan and reduce the outward transmission of noise; the inner heat-conducting layer 103 can quickly conduct the heat inside the fan to the outside, assisting in heat dissipation; in this utility model, the protective layer 101 made of ASA engineering plastic has excellent weather resistance and impact resistance, extending the service life of the upper cover 1; the sound insulation layer 102 made of PC / ABS alloy has good sound insulation effect, reducing the noise of the fan operation and improving the comfort of use; the heat-conducting layer 103 made of 6063 aluminum alloy has excellent thermal conductivity, accelerating the heat dissipation speed and improving the heat dissipation efficiency of the fan. The three-layer structure works together to enable the upper cover 1 to have the functions of protection, sound insulation and heat dissipation.

[0026] Specifically, such as Figure 1 and Figure 2 As shown, the side surface of the upper cover 1 is provided with several connecting protrusions 10, and each connecting protrusion 10 has a threaded hole 11 inside.

[0027] The connecting protrusions 10 on the side surface of the upper cover 1 are bolted to external components such as the fan frame through internal threaded holes 11, thereby achieving the fixed installation of the upper cover 1. In this utility model, the distribution design of multiple connecting protrusions 10 makes the connection between the upper cover 1 and the external components more stable and the force more even. The connection method of threaded holes 11 is simple to operate, easy to install and disassemble, and has high connection strength, ensuring that the upper cover 1 will not loosen when the fan is running, thus improving the stability of the overall structure.

[0028] Working principle and usage process of this utility model:

[0029] The operator first rotates the connecting cover 5 by rotating the anti-slip protrusion on the side surface of the connecting cover 5, so that the reverse thread of the bottom of the connecting cover 5 is adapted to the thread of the spiral pattern 4 on the outside of the connecting platform 3 and tightened. Then, the operator uses bolts to fix the upper cover 1 to the external fan frame through the threaded hole 11 inside the connecting protrusion 10 on the side surface of the upper cover 1. When the device is running, the external airflow enters the fan through the air duct formed between the partition bars 6, the air inlet hole 2 7 on the connecting cover 5, and the air inlet hole 2 on the upper cover 1. The air duct formed between the partition bars 6 guides the airflow, the barrier 9 blocks foreign objects from entering the air duct, and the support plate 8 supports and reinforces the partition bars 6. At the same time, the outer protective layer 101 of the upper cover 1 resists external impact and corrosion, the middle sound insulation layer 102 absorbs operating noise, and the inner heat-conducting layer 103 conducts internal heat to the outside for auxiliary heat dissipation. The whole device achieves stable heat dissipation, protection, and convenient installation and maintenance.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A composite upper cover structure for a cooling fan, comprising an upper cover body (1), characterized in that: An air inlet (2) is provided inside the upper cover (1). A connecting platform (3) is fixedly connected to the outside of the air inlet (2) and at the top of the upper cover (1). A spiral pattern (4) is provided on the outer surface of the connecting platform (3). A connecting cover (5) is threaded to the outside of the connecting platform (3) through the spiral pattern (4). Several partition strips (6) arranged in a circular array are fixedly connected to the top of the connecting cover (5). An air inlet (7) is provided at one end of the partition strips (6) that are close to each other and inside the connecting cover (5). A support plate (8) is fixedly connected to the top of the partition strips (6). A barrier grille (9) is fixedly connected to one side of the partition strips (6) that are close to each other.

2. The composite top cover structure of the cooling fan according to claim 1, characterized in that: The second air inlet (7) is connected to the first air inlet (2), and an air duct is formed between the partition bars (6). The barrier grille (9) is fixedly installed inside the air duct.

3. The composite top cover structure of the cooling fan according to claim 2, characterized in that: The bottom of the connecting cover (5) is provided with a reverse thread adapted to the spiral pattern (4), and the side surface of the connecting cover (5) is provided with anti-slip protrusions.

4. The composite top cover structure of the cooling fan according to claim 1, characterized in that: The upper cover (1) includes a protective layer (101), a sound insulation layer (102) is disposed below the protective layer (101), and a heat-conducting layer (103) is disposed below the sound insulation layer (102).

5. The composite top cover structure of the cooling fan according to claim 4, characterized in that: The protective layer (101) is made of ASA engineering plastic, the sound insulation layer (102) is made of PC / ABS alloy, and the heat-conducting layer (103) is made of 6063 aluminum alloy.

6. The composite top cover structure of the cooling fan according to claim 1, characterized in that: The side surface of the upper cover (1) is provided with a number of connecting protrusions (10), and each connecting protrusion (10) has a threaded hole (11) inside.

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