Non-inductive brushless direct-current brushless cooling fan assembly

Abstract

The utility model relates to the technical field of automobile accessories, and discloses a non-inductive brushless direct-current cooling fan assembly which comprises a frame, an installation cylinder is arranged on the outer side of the frame, a motor is installed in the installation cylinder, fan blades are installed at the output end of the motor, and a dustproof assembly is installed on the installation cylinder through a fixing assembly. According to the utility model, through the mutual cooperation between the dustproof shell and the filter screen, the air inlet end of the motor can be shielded, so that dust and sundries are blocked and prevented from entering the motor to influence the normal use of the motor, and a better protection effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a sensorless brushless DC brushless cooling fan assembly. Background Art

[0002] The automobile cooling fan assembly includes a frame, a motor and fan blades. A motor mounting tube is provided inside the frame, the motor is installed in the motor mounting tube, and the fan blades are installed on the output shaft of the motor. The radiator is fixed on the front of the entire frame. The upstream of the wind flow is defined as the front, and the downstream of the wind flow is defined as the back. When in use, the fan blades are driven by the motor to rotate to generate flowing wind. The air flow flows into the radiator from one side, passes through the fan blades, and is blown out, and then directly blown to the engine.

[0003] The utility model patent application document with publication number "CN212027920U" discloses a PWM-controlled brushless DC brushless cooling fan assembly, which is mainly composed of a mounting base, a fan body, a mounting shell, a connecting block and a movable box. This technical solution solves the problem that the existing PWM-controlled brushless DC brushless cooling fan assembly is inconvenient to install and disassemble by setting a mounting base, a fan body, a mounting shell, a connecting block, a movable box, a movable plate, a movable block, a pressure block, a pressure rod, a first spring, a pull plate, a plug rod, a second spring and a slot. The PWM-controlled brushless DC brushless cooling fan assembly has the advantage of easy installation and disassembly.

[0004] The sensorless brushless DC brushless cooling fan assembly disclosed in the above document has the following defects: the motor surface of the cooling fan assembly is in direct contact with the outside world, and dust or debris from the outside can easily enter the interior of the motor, causing a significant impact on the use of the motor and reducing the service life of the motor.

[0005] It can be seen from this that the existing sensorless brushless DC brushless cooling fan assembly does not have a good dustproof component, and it is necessary to improve the existing deficiencies and provide a sensorless brushless DC brushless cooling fan assembly. Utility Model Content

[0006] The purpose of the present invention is to provide a brushless DC brushless cooling fan assembly to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0008] The utility model is a brushless DC brushless cooling fan assembly, comprising a frame, a mounting tube provided on the outer side of the frame, a motor installed in the mounting tube, a fan blade installed on the output end of the motor, and a dustproof component installed on the mounting tube through a fixing component.

[0009] Furthermore, a connecting frame is provided on the outer surface of the frame, and an anti-slip pad is installed on the lower surface of the connecting frame.

[0010] Furthermore, the fixing assembly includes a connecting block, a slide groove is provided at one end of the connecting block, a connecting rod is provided inside the slide groove, the outer surface of the connecting rod is slidably connected to the fixing block, one end of the fixing block passes through the slide groove and extends outward, and a first spring is sleeved on the outer surface of the connecting rod, one end of the first spring abuts against the outer surface of the fixing block, and the other end of the first spring abuts against the inner surface of the slide groove.

[0011] Furthermore, a cavity is provided inside the fixed block, a slide is slidably connected inside the cavity, a limiting column is installed on the upper surface of the slide, the limiting column passes through the fixed block and extends upward, a second spring is installed on the lower surface of the slide, the other end of the second spring is installed on the inner surface of the cavity, a limiting hole is provided on the upper surface of the connecting block, and one end of the limiting hole extends to the inside of the slide groove.

[0012] Furthermore, the dustproof component includes a dustproof shell, a placement groove is opened at one end of the dustproof shell, a filter is installed inside the placement groove, one end of the filter is in contact with the outer surface of the motor, and a mounting hole is opened on the outer surface of the dustproof shell.

[0013] Furthermore, a connecting block is fitted inside the mounting hole, and an outer surface of the dustproof shell abuts against an outer surface of the fixing block.

[0014] The utility model has the following beneficial effects:

[0015] (1) The utility model can shield the air inlet of the motor through the interaction between the dust cover and the filter, thereby blocking dust and debris, preventing them from entering the interior of the motor and affecting the normal use of the motor, and achieving a better protective effect.

[0016] (2) The utility model can achieve a good fixing effect on the dustproof component by setting the fixing component, and it also facilitates the disassembly and installation of the dustproof component, achieving a good practical effect.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is an exploded view of the overall structure of the utility model;

[0021] Figure 3 This is a cross-sectional view of the fixed component structure and dustproof shell of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the dustproof component of the utility model;

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] In the figure: 1. Frame; 101. Mounting tube; 102. Connecting frame; 2. Motor; 3. Fan blade; 4. Fixing assembly; 401. Connecting block; 402. Slide groove; 403. Connecting rod; 404. Fixing block; 405. First spring; 406. Slide plate; 407. Limiting column; 408. Second spring; 409. Limiting hole; 5. Dustproof assembly; 501. Dustproof shell; 502. Placement groove; 503. Filter; 504. Mounting hole; 6. Anti-slip pad. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1 - Figure 4 As shown, the utility model is a brushless DC brushless cooling fan assembly, comprising a frame 1, a mounting tube 101 is provided on the outside of the frame 1, a motor 2 is installed in the mounting tube 101, a fan blade 3 is installed at the output end of the motor 2, and a dustproof component 5 is installed on the mounting tube 101 through a fixing component 4;

[0027] The outer surface of the frame 1 is provided with a connecting frame 102, and the lower surface of the connecting frame 102 is installed with an anti-slip pad 6;

[0028] When installing the cooling fan assembly, first place the frame 1 where it will be used, and then fix the connecting frame 102 to the external components with bolts. The anti-slip pads 6 can increase the friction between the connecting frame 102 and the external components, thereby reducing the occurrence of sliding.

[0029] The dustproof assembly 5 includes a dustproof shell 501, one end of which is provided with a placement groove 502, a filter 503 is installed inside the placement groove 502, one end of the filter 503 is in contact with the outer surface of the motor 2, and the outer surface of the dustproof shell 501 is provided with a mounting hole 504;

[0030] When cooling the engine, by starting the motor 2, the output end of the motor 2 drives the fan blades 3 to rotate, and the fan blades 3 are driven by the motor 2 to rotate to generate flowing wind. The air flow flows into the radiator from one side, passes through the fan blades 3, and is blown out, and then blows directly to the engine to dissipate heat and cool the engine. During the flow of the air, dust and debris in the air flow will be blocked by the filter 503, preventing them from entering the interior of the motor 2 and affecting the normal use of the motor 2, thereby achieving a better protection effect.

[0031] The fixing assembly 4 includes a connecting block 401, one end of which is provided with a slide groove 402, an interior of which is provided with a connecting rod 403, an outer surface of which is slidably connected to a fixing block 404, one end of which passes through the slide groove 402 and extends outward, and an outer surface of the connecting rod 403 is sleeved with a first spring 405, one end of which abuts against the outer surface of the fixing block 404, and the other end of which abuts against the inner surface of the slide groove 402;

[0032] A cavity is defined within the fixed block 404, and a slide 406 is slidably connected to the interior of the cavity. A limiting post 407 is mounted on the upper surface of the slide 406, which passes through the fixed block 404 and extends upward. A second spring 408 is mounted on the lower surface of the slide 406, and the other end of the second spring 408 is mounted on the inner surface of the cavity. A limiting hole 409 is defined on the upper surface of the connecting block 401, and one end of the limiting hole 409 extends into the interior of the slide groove 402.

[0033] The connecting block 401 is mounted in the mounting hole 504 , and the outer surface of the dust cover 501 abuts against the outer surface of the fixing block 404 ;

[0034] When the filter 503 needs to be replaced, the cooling fan assembly is removed from the installation place. After removal, the fixing block 404 is pushed to make the fixing block 404 move along the inside of the axial slide groove 402. At the same time, the first spring 405 gradually contracts. When the outer surface of the fixing block 404 is flush with the outer surface of the connecting block 401, the limiting column 407 is located directly below the limiting hole 409. The second spring 408 recovers its elasticity and pushes the slide plate 406 to slide upward in the cavity. At the same time, the limiting column 407 cooperates with the installation inside the limiting hole 409 to complete the fixation between the fixing block 404 and the connecting block 401. At this time, the dust cover 501 can be pulled upward and the dust cover 501 can be removed from the installation cylinder 101, so that the filter 503 is exposed, which makes it convenient for the staff to replace the filter 503. By replacing the new filter 503 is placed at the air inlet end of the motor 2, and then the mounting hole 504 of the dust cover 501 is aligned with the connecting block 401, and the dust cover 501 is pushed downward so that the dust cover 501 and the mounting cylinder 101 are installed, so that the dust cover 501 fixes the position of the filter 503, and at the same time, the connecting block 401 is installed in the inside of the mounting hole 504. After the dust cover 501 is installed, the limiting column 407 is squeezed downward to make the slide plate 406 slide toward the inner bottom of the cavity, and the second spring 408 gradually contracts. When the outer surface of the limiting column 407 is flush with the outer surface of the fixing block 404, the first spring 405 restores its elasticity and pushes the fixing block 404 to move to the outside of the slide groove 402, so that the outer surface of the fixing block 404 abuts against the outer surface of the dust cover 501, completing the fixed installation of the dust cover 501.

[0035] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A brushless DC cooling fan assembly comprising a frame (1), characterized in that: A mounting tube (101) is provided on the outside of the frame (1), a motor (2) is installed in the mounting tube (101), a fan blade (3) is installed at the output end of the motor (2), and a dustproof component (5) is installed on the mounting tube (101) via a fixing component (4); The dustproof assembly (5) comprises a dustproof shell (501), one end of the dustproof shell (501) is provided with a placement groove (502), a filter screen (503) is installed inside the placement groove (502), one end of the filter screen (503) is in contact with the outer surface of the motor (2), and the outer surface of the dustproof shell (501) is provided with a mounting hole (504).

2. The sensorless brushless DC brushless cooling fan assembly according to claim 1, characterized in that: A connecting frame (102) is provided on the outer surface of the frame (1), and an anti-slip pad (6) is installed on the lower surface of the connecting frame (102).

3. The sensorless brushless DC brushless cooling fan assembly according to claim 1, characterized in that: The fixing assembly (4) includes a connecting block (401), a sliding groove (402) is provided at one end of the connecting block (401), a connecting rod (403) is provided inside the sliding groove (402), and a fixing block (404) is slidably connected to the outer surface of the connecting rod (403), and one end of the fixing block (404) passes through the sliding groove (402) and extends outward. A first spring (405) is sleeved on the outer surface of the connecting rod (403), one end of the first spring (405) abuts against the outer surface of the fixed block (404), and the other end of the first spring (405) abuts against the inner surface of the sliding groove (402).

4. The sensorless brushless DC brushless cooling fan assembly according to claim 3, characterized in that: A cavity is provided inside the fixed block (404), a slide plate (406) is slidably connected to the inside of the cavity, a limiting column (407) is installed on the upper surface of the slide plate (406), the limiting column (407) passes through the fixed block (404) and extends upward, a second spring (408) is installed on the lower surface of the slide plate (406), and the other end of the second spring (408) is installed on the inner surface of the cavity; A limiting hole (409) is provided on the upper surface of the connecting block (401), and one end of the limiting hole (409) extends to the interior of the sliding groove (402).

5. The sensorless brushless DC brushless cooling fan assembly according to claim 3, characterized in that: The interior of the mounting hole (504) is cooperatively mounted with a connecting block (401), and the outer surface of the dustproof shell (501) abuts against the outer surface of the fixing block (404).

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