Cooling fan

Abstract

The utility model belongs to the technical field of fans, and discloses a heat dissipation fan which comprises an air duct and a fan cover arranged at one end of the air duct, a heat dissipation assembly is arranged in the air duct, two L-shaped rod bodies are fixed to the side, close to the heat dissipation assembly, of the fan cover, and the two L-shaped rod bodies are symmetrically arranged; a connecting groove allowing the L-shaped rod body to slide in is formed in the end, close to the fan cover, of the air duct, the connecting groove is L-shaped, the L-shaped rod body is in sliding fit with the connecting groove, a mounting hole communicated with the side, away from the fan cover, of the connecting groove is formed in the air duct, and an elastic abutting assembly used for abutting against the L-shaped rod body is arranged in the mounting hole. The mounting and dismounting efficiency of the fan cover is improved, so that dust or flocculent sundries on the fan cover and the fan blades can be conveniently cleaned.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan technical field, especially a kind of heat dissipation fan. BACKGROUND

[0002] Heat dissipation fan is a rotating impeller equipment driven by motor, air is inhaled from one side through suction port, and after rotating through impeller, it is discharged from the other side, forming continuous airflow, for heat dissipation or ventilation. The main function of heat dissipation fan is to transfer the heat inside the equipment to the outside air, so as to reduce the temperature of the equipment, ensure the normal operation of the equipment and prolong the service life.

[0003] In the Chinese utility model patent with publication number CN210738954U, a fan protective mesh cover is disclosed, which comprises a fan cover, a fixed rod is fixedly connected to the surface of the fan cover, a connecting clamp is fixedly connected to one end of the fixed rod, an installation plate is fixedly connected to the bottom of the connecting clamp, a fixed installation shaft is fixedly connected to the center of the fan cover, a self-rotating fan is fixedly connected to the bottom of the fixed installation shaft, a protective net is fixedly connected to the surface of the fan cover, an installation connecting hole is formed in the surface of the installation plate, a planetary rod is rotatably connected to the outer surface of the self-rotating fan, a self-rotating gear is rotatably connected to the bottom of the self-rotating fan, a revolving arc gear is rotatably connected to the outer side of the self-rotating gear, and a cleaning rod is fixedly connected to the outer surface of the planetary rod.

[0004] According to the related technology in the above, the inventors believe that the following defects exist: the fan cover is installed in a rear fixed manner, and after long-term use, dust, lint and other debris are likely to cover the fan cover and the fan blades of the heat dissipation fan, which has a certain impact on the heat dissipation effect of the heat dissipation fan. The above fan protective mesh cover is not convenient to disassemble, and it is difficult to quickly clean the dust, lint and other debris, therefore, the related technology needs to be improved and designed. UTILITY MODEL CONTENTS

[0005] In order to solve the above problems, the utility model provides a heat dissipation fan.

[0006] The above technical purpose of the utility model is realized by the following technical scheme: a heat dissipation fan, comprising a wind tube and a fan cover arranged at one end of the wind tube, a heat dissipation assembly is arranged in the wind tube, an L-shaped rod body is fixed to one side of the fan cover close to the heat dissipation assembly, the L-shaped rod body is provided with two and arranged symmetrically, a connecting groove for sliding the L-shaped rod body is arranged at one end of the wind tube close to the fan cover, the connecting groove is L-shaped, the L-shaped rod body and the connecting groove are in sliding fit, an installation hole is arranged in the wind tube and communicates with one side of the connecting groove away from the fan cover, and an elastic abutting assembly for abutting against the L-shaped rod body is arranged in the installation hole.

[0007] By adopting the technical scheme, when the fan cover is installed, the staff only needs to slide the L-shaped rod body into the opening of the connecting groove, and when the L-shaped rod body acts on the elastic abutting assembly, the elastic abutting assembly is retracted into the mounting hole, and when the L-shaped rod body is slid to the side away from the opening of the connecting groove, the elastic abutting assembly abuts against the L-shaped rod body, thereby ensuring the stability of the L-shaped rod body and the stability of the connection between the fan cover and the wind cylinder. When the dust or flocculent impurities on the fan cover and the fan blades are cleaned, the staff only needs to rotate the fan cover to compress the elastic abutting assembly into the mounting hole again, and then the L-shaped rod body can be easily taken out from the opening of the connecting groove, so as to facilitate the staff to disassemble the fan cover for cleaning the dust or flocculent impurities on the fan cover and the fan blades.

[0008] Further, the cross section of the L-shaped rod body is circular, the side wall of the wind cylinder is provided with an arc-shaped groove in communication with the end of the connecting groove away from the opening thereof, the elastic abutting assembly comprises a spring fixed to the side wall of the mounting hole away from the fan cover and an abutting block fixed to the free end of the spring, and an inclined surface is arranged at the intersection between the end of the abutting block away from the spring and the side of the abutting block close to the opening of the connecting groove.

[0009] By adopting the technical scheme, under the elastic force of the spring, the L-shaped rod body enters the arc-shaped groove, thereby ensuring the fixing effect of the elastic abutting assembly on the L-shaped rod body. When the fan cover is installed, the L-shaped rod body abuts against the inclined surface and presses the abutting block away from the fan cover, so that the spring is compressed, and the abutting block fixes the L-shaped rod body under the elastic force of the spring.

[0010] Further, an arc-shaped curved surface is arranged on the abutting block in communication with the inclined surface and matched with the L-shaped rod body.

[0011] By adopting the technical scheme, the fixing effect of the abutting block on the L-shaped rod body is ensured.

[0012] Further, a rubber ring is attached to and fixed to one end of the wind cylinder, the side of the rubber ring away from the wind cylinder abuts against one side of the fan cover, and an opening is arranged on the rubber ring at a position corresponding to the connecting groove.

[0013] By adopting the technical scheme, the rubber ring is made of rubber material and has good elastic performance, and the arrangement of the rubber ring makes the L-shaped rod body abut against the arc-shaped groove, and the two sides of the rubber ring abut against the end face of the wind cylinder and the fan cover, thereby enhancing the stability of the fan cover during use.

[0014] Further, the heat dissipation assembly comprises a motor and a fan blade fixed to an output end of the motor, a fixing mechanism for fixing the motor is arranged in the air duct, the fixing mechanism comprises a connecting assembly, the connecting assembly comprises a connecting rod fixed to an inner wall of the air duct, a first semicircular plate fixed to an end of the connecting rod, and a second semicircular plate hinged to one side of the first semicircular plate, a side wall of the motor abuts against inner surfaces of the first semicircular plate and the second semicircular plate, and the fixing mechanism further comprises a fixing assembly for fixing the second semicircular plate.

[0015] Further, the fixing assembly comprises a threaded sleeve fixed to an outer wall of the second semicircular plate and a bolt penetratingly arranged on the side wall of the air duct and in gap fit, and the bolt is in threaded connection with the threaded sleeve.

[0016] By adopting the above technical scheme, after the bolt is tightened, the second semicircular plate cooperates with the first semicircular plate and abuts against the motor outside, so that the motor is well fixed, when the motor needs to be overhauled, the staff only needs to unscrew the bolt, and then the second semicircular plate can be opened, so that the motor can be conveniently disassembled, and the motor can be overhauled.

[0017] Further, the motor is a servo motor.

[0018] Further, the inner surfaces of the first semicircular plate and the second semicircular plate are attached and fixed with arc-shaped rubber sheets.

[0019] By adopting the above technical scheme, the arc-shaped rubber sheets are made of rubber material and have good elastic properties, the arrangement of the arc-shaped rubber sheets can well protect the motor, and the motor is effectively protected while the fixing effect of the motor is ensured, so that the clamping damage to the motor is reduced.

[0020] In summary, the utility model has the following beneficial effects:

[0021] 1. In the application, when the fan cover is installed, the staff only needs to slide the L-shaped rod body into the opening of the connecting groove, and when the L-shaped rod body acts on the elastic abutting assembly, the elastic abutting assembly is contracted into the mounting hole, when the L-shaped rod body is slid to the side away from the opening of the connecting groove, the elastic abutting assembly abuts against the L-shaped rod body, so that the stability of the L-shaped rod body is ensured, and the stability of the connection between the fan cover and the air duct is ensured.

[0022] 2. In the application, under the elastic force of the spring, the L-shaped rod body enters the arc-shaped groove, so that the fixing effect of the elastic abutting assembly on the L-shaped rod body is ensured. When the fan cover is installed, the L-shaped rod body abuts against the inclined surface and abuts against and presses the abutting block away from the fan cover, so that the spring is compressed, and the abutting block is fixed to the L-shaped rod body under the elastic force of the spring.

[0023] 3、In the application, the rubber ring is made of rubber material and has good elastic performance, the rubber ring is arranged to abut the L-shaped rod body and the arc-shaped groove, and the two sides of the rubber ring are abutted with the end face of the air duct and the fan cover, so that the stability of the fan cover during use is enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is the overall structure schematic diagram of the embodiment of the utility model;

[0025] Figure 2 is Figure 1 structure schematic diagram of another view;

[0026] Figure 3 is the structure schematic diagram of the utility model embodiment for highlighting the elastic abutting assembly;

[0027] Figure 4 is Figure 3 enlarged schematic view of A in figure

[0028] Figure 5 is the structure schematic diagram of the utility model embodiment for highlighting the fixing assembly.

[0029] In the drawing: 1, air duct; 11, connecting groove; 12, arc-shaped groove; 2, fan cover; 21, L-shaped rod body; 22, mounting hole; 3, heat dissipation assembly; 31, motor; 32, fan blade; 4, elastic abutting assembly; 41, spring; 42, abutting block; 421, inclined surface; 422, arc-shaped curved surface; 5, rubber ring; 51, notch; 6, fixing mechanism; 61, connecting assembly; 611, connecting rod; 612, first semicircular plate body; 613, second semicircular plate body; 62, fixing assembly; 621, threaded sleeve; 622, bolt. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application; obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application, and all other embodiments obtained by those skilled in the art without creative work on the basis of the embodiments in the application belong to the protection scope of the application.

[0031] As Figures 1-5As shown, the embodiment of the present application discloses a heat dissipation fan, which comprises a wind drum 1, a fan cover 2 arranged at one end of the wind drum 1, a heat dissipation assembly 3 arranged in the wind drum 1, an L-shaped rod body 21 fixed at one side of the fan cover 2 close to the heat dissipation assembly 3, two L-shaped rod bodies 21 symmetrically arranged, a connecting groove 11 arranged at one end of the wind drum 1 close to the fan cover 2 for sliding the L-shaped rod body 21, the connecting groove 11 being L-shaped, the L-shaped rod body 21 being in sliding fit with the connecting groove 11, an installation hole 22 arranged in the wind drum 1 and communicated with one side of the connecting groove 11 away from the fan cover 2, and an elastic abutting assembly 4 arranged in the installation hole 22 and used for abutting against the L-shaped rod body 21.

[0032] When the fan cover 2 is installed, the worker only needs to slide the L-shaped rod body 21 into the opening of the connecting groove 11, and when the L-shaped rod body 21 acts on the elastic abutting assembly 4, the elastic abutting assembly 4 is shrunk into the installation hole 22, and when the L-shaped rod body 21 is slid to one side of the connecting groove 11 away from the opening thereof, the elastic abutting assembly 4 abuts against the L-shaped rod body 21, thereby ensuring the stability of the L-shaped rod body 21 and the stability of the connection between the fan cover 2 and the wind drum 1. When the dust or flocculent impurities on the fan cover 2 and the fan blades 32 are cleaned, the worker only needs to rotate the fan cover 2, so that the L-shaped rod body 21 re-compresses the elastic abutting assembly 4 into the installation hole 22, and the L-shaped rod body 21 can be easily taken out from the opening of the connecting groove 11, so as to facilitate the worker to disassemble the fan cover 2 and clean the dust or flocculent impurities on the fan cover 2 and the fan blades 32.

[0033] The cross section of the L-shaped rod body 21 is circular, the side wall of the wind drum 1 is provided with an arc-shaped groove 12 communicated with one end of the connecting groove 11 away from the opening thereof, the elastic abutting assembly 4 comprises a spring 41 fixed to the side wall of the installation hole 22 away from the fan cover 2 and an abutting block 42 fixed to the free end of the spring 41, and an inclined surface 421 is arranged at the intersection between one end of the abutting block 42 away from the spring 41 and the side of the abutting block 42 close to the opening of the connecting groove 11.

[0034] Under the elastic force of the spring 41, the L-shaped rod body 21 enters the arc-shaped groove 12, thereby ensuring the fixing effect of the elastic abutting assembly 4 on the L-shaped rod body 21. When the fan cover 2 is installed, the L-shaped rod body 21 abuts against the inclined surface 421 and abuts against the abutting block 42 away from the fan cover 2, so that the spring 41 is compressed, and the abutting block 42 fixes the L-shaped rod body 21 under the elastic force of the spring 41.

[0035] In order to increase the contact area of the abutting block 42 on the L-shaped rod body 21 and enhance the fixing effect of the abutting block 42 on the L-shaped rod body 21, an arc-shaped curved surface 422 is arranged on the abutting block 42 and communicated with the inclined surface 421 and matched with the L-shaped rod body 21.

[0036] The rubber ring 5 is fixed on one end of the air duct 1, and the side of the rubber ring 5 away from the air duct 1 is tightly abutted with one side of the fan cover 2. The rubber ring 5 is provided with an opening 51 at the position corresponding to the connecting groove 11. The rubber ring 5 is made of rubber material and has good elastic performance. The setting of the rubber ring 5 makes the L-shaped rod body 21 tightly abut against the arc-shaped groove 12, and the two sides of the rubber ring 5 are tightly abutted with the end face of the air duct 1 and the fan cover 2, thereby enhancing the stability of the fan cover 2 during use.

[0037] The heat dissipation assembly 3 comprises a motor 31 and a fan blade 32 fixed with the output end of the motor 31. The motor 31 is a servo motor 31. The air duct 1 is provided with a fixing mechanism 6 for fixing the motor 31. The fixing mechanism 6 comprises a connecting assembly 61 comprising a connecting rod 611 fixed on the inner wall of the air duct 1, a first semicircular plate body 612 fixed with the end of the connecting rod 611, and a second semicircular plate body 613 hingedly connected with one side of the first semicircular plate body 612. The side wall of the motor 31 is tightly abutted with the inner surfaces of the first semicircular plate body 612 and the second semicircular plate body 613. The fixing mechanism 6 further comprises a fixing assembly 62 for fixing the second semicircular plate body 613. The fixing assembly 62 comprises a threaded sleeve 621 fixed on the outer wall of the second semicircular plate body 613 and a bolt 622 penetratingly arranged on the side wall of the air duct 1 and gap-fitted. The bolt 622 is threadedly connected with the threaded sleeve 621.

[0038] After the bolt 622 is tightened, the second semicircular plate body 613 cooperates with the first semicircular plate body 612 and tightly abuts the outside of the motor 31, thereby achieving good fixing effect of the motor 31. When the motor 31 needs to be overhauled, the staff only needs to unscrew the bolt 622 to open the second semicircular plate body 613, thereby facilitating the disassembly of the motor 31 and the overhaul of the motor 31. The proportion of the motor 31 and the fan blade 32 in the figure is designed to highlight the fan blade 32. In fact, the diameter of the circle formed by the rotation of the fan blade 32 is less than or equal to the radius of the air duct 1, so as to facilitate the overall installation and disassembly of the motor 31 and the fan blade 32.

[0039] The inner surfaces of the first semicircular plate body 612 and the second semicircular plate body 613 are respectively fixed with arc-shaped rubber sheets (not shown in the figure). The arc-shaped rubber sheets are made of rubber material and have good elastic performance. The setting of the arc-shaped rubber sheets achieves good protection effect of the motor 31, effectively protects the motor 31 while ensuring the fixing effect of the motor 31, and reduces the clamping damage to the motor 31.

[0040] The use principle of the heat dissipation fan in the embodiment is as follows: when the fan cover 2 is installed, the worker only needs to slide the L-shaped rod body 21 into the opening of the connecting groove 11, and when the L-shaped rod body 21 acts on the elastic abutting assembly 4, the elastic abutting assembly 4 is retracted into the mounting hole 22; when the L-shaped rod body 21 is slid to the side away from the opening of the connecting groove 11, the elastic abutting assembly 4 abuts against the L-shaped rod body 21, so that the stability of the L-shaped rod body 21 is ensured, and the stability of the connection between the fan cover 2 and the air duct 1 is ensured.

[0041] The preferred embodiments of the present application are described above, the protection scope of the present application is not limited to the above-mentioned embodiments, any technical scheme falling within the idea of the present application belongs to the protection scope of the present application. It should be noted that, for ordinary skilled in the art, some improvements and decorations without departing from the principle of the present application are also considered as the protection scope of the present application.

Claims

1. A heat dissipation fan, comprising a wind tube (1) and a fan cover (2) arranged at one end of the wind tube (1), and a heat dissipation assembly (3) arranged in the wind tube (1), characterized in that: The fan cover (2) is fixed with L-shaped rod body (21) near one side of the heat dissipation assembly (3), the L-shaped rod body (21) is equipped with two and symmetrically arranged, the air duct (1) is provided with the connecting groove (11) for the L-shaped rod body (21) to slide into near one end of the fan cover (2), the connecting groove (11) is L-shaped, the L-shaped rod body (21) and connecting groove (11) sliding fit, the air duct (1) is provided with the mounting hole (22) for being communicated with the side of connecting groove (11) away from the fan cover (2), the mounting hole (22) is provided with the elastic abutting assembly (4) for abutting against the L-shaped rod body (21).

2. The heat dissipation fan according to claim 1, characterized in that: The cross section of the L-shaped rod body (21) is circular, the sidewall of the air duct (1) is provided with the arc-shaped groove (12) for being communicated with the end of the connecting groove (11) away from the opening thereof, the elastic abutting assembly (4) comprises the spring (41) fixed with the sidewall of the mounting hole (22) away from the fan cover (2) and the abutting block (42) fixed with the free end of the spring (41), the intersection between the end of the abutting block (42) away from the spring (41) and the side of the abutting block (42) near the opening of the connecting groove (11) is provided with the inclined surface (421).

3. The heat dissipation fan of claim 2, wherein: The abutting block (42) is provided with the arc-shaped curved surface (422) communicated with the inclined surface (421) and matched with the L-shaped rod body (21).

4. The heat dissipation fan of claim 3, wherein: The air duct (1) is provided with the rubber ring (5) adhered and fixed at one end, the side of the rubber ring (5) away from the air duct (1) is abutted against one side of the fan cover (2), and the rubber ring (5) is provided with the gap (51) at the position corresponding to the connecting groove (11).

5. The heat dissipation fan of claim 4, wherein: The heat dissipation assembly (3) comprises the motor (31) and the fan blade (32) fixed with the output end of the motor (31), the air duct (1) is provided with the fixing mechanism (6) for fixing the motor (31), the fixing mechanism (6) comprises the connecting assembly (61), the connecting assembly (61) comprises the connecting rod (611) fixed on the inner wall of the air duct (1), the first semicircular plate body (612) fixed with the end of the connecting rod (611) and the second semicircular plate body (613) hinged with one side of the first semicircular plate body (612), the sidewall of the motor (31) is abutted against the inner surfaces of the first semicircular plate body (612) and the second semicircular plate body (613), and the fixing mechanism (6) further comprises the fixing assembly (62) for fixing the second semicircular plate body (613).

6. The heat dissipation fan of claim 5, wherein: The fixing assembly (62) comprises the threaded sleeve (621) fixed on the outer wall of the second semicircular plate body (613) and the bolt (622) penetratingly arranged on the sidewall of the air duct (1) and gap fit, and the bolt (622) is in threaded connection with the threaded sleeve (621).

7. The heat dissipation fan of claim 5, wherein: The motor (31) is a servo motor (31).

8. The heat dissipation fan of claim 5, wherein: The inner surfaces of the first semicircular plate body (612) and the second semicircular plate body (613) are adhered and fixed with the arc-shaped rubber sheet.

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