Cooling fan and case

Abstract

The utility model discloses a heat dissipation fan and a case, and the heat dissipation fan comprises an outer frame, a fan blade group, a dust filtration limiting assembly and a linkage cleaning assembly. And the dust filtering limiting assembly is fixedly assembled on the air inlet side of the outer frame and comprises a fixing plate, the fixing plate is assembled on the air inlet side of the outer frame in an inserted connection mode, and a second dust filtering net is fixedly connected into the fixing plate. And the linkage sweeping assembly sleeves the outer side of the fixing plate and comprises a positioning frame, the side, away from the outer frame, of the positioning frame is fixedly connected with a first dust filtering net, a linkage rotating shaft is rotationally assembled in the positioning frame, and the outer side of the linkage rotating shaft is fixedly connected with a plurality of sets of evenly-distributed sweeping plates. According to the cooling fan, the linkage sweeping assembly is arranged, dust attached to the dust filtering net can be swept in an auxiliary mode, the situation that the dust is attached to the dust filtering net is reduced, the ventilation effect of the cooling fan is guaranteed, and the use reliability of the cooling fan is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of chassis cooling fans, specifically relating to a cooling fan and chassis. Background Technology

[0002] A computer case cooling fan is a fan installed inside a computer case. It mainly helps to dissipate heat from heat-generating components such as the CPU and graphics card by promoting airflow. Common computer case cooling fans are mainly composed of a stator, rotor, motor, outer frame, and guide vanes.

[0003] Most existing computer case cooling fans do not have dust filtration capabilities and cannot block dust in the flowing air. The flow of dusty air not only damages the cooling fan itself and shortens its lifespan, but also easily adheres to the electronic components inside the case. Dust adhesion can also cause heat buildup and shorten the lifespan of electronic components, resulting in poor reliability of the computer case cooling fan.

[0004] Therefore, it is necessary to provide a cooling fan and chassis to address the aforementioned technical issues.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a cooling fan and chassis that can filter dust from the airflow, thereby improving the reliability of the cooling fan.

[0007] To achieve the above objectives, a specific embodiment of this utility model provides a cooling fan, including: an outer frame, a fan blade assembly, a dust filter limiting component, and a linkage cleaning component.

[0008] The outer frame is equipped with a fan blade assembly that rotates within it.

[0009] The dust filter limiting assembly is fixedly assembled on the air inlet side of the outer frame. The dust filter limiting assembly includes a fixing plate, which is inserted and assembled on the air inlet side of the outer frame. A second dust filter is fixedly connected inside the fixing plate.

[0010] The linkage cleaning component is mounted on the outside of the fixed plate. The linkage cleaning component includes a positioning frame, which is fixedly assembled on the air inlet side of the outer frame. A first dust filter is fixedly connected to the side of the positioning frame away from the outer frame. A linkage shaft is rotatably assembled inside the positioning frame. Multiple sets of evenly distributed cleaning plates are fixedly connected to the outside of the linkage shaft. The cleaning plates are configured to cooperate with the first dust filter.

[0011] In one or more embodiments of this utility model, a plurality of evenly distributed positioning through holes are provided on the outer side of the outer frame, and assembly bolts are inserted into the positioning through holes. The outer frame is assembled and fixed to the chassis body by means of the assembly bolts passing through the positioning through holes and the assembly through holes. A support frame is fixedly assembled on the air outlet side of the outer frame. The support frame is used to limit the assembly of the fan blade assembly.

[0012] In one or more embodiments of this utility model, a plurality of positioning sleeves are integrally formed on the side of the fixing plate close to the outer frame, and the plurality of positioning sleeves are all inserted and assembled into the air inlet side of the outer frame. The fixing plate is assembled and limited by the insertion and cooperation between the positioning sleeves and the outer frame.

[0013] In one or more embodiments of this utility model, a plurality of evenly distributed first fixing ear plates are fixedly connected to the outer side of the positioning frame, and a plurality of evenly distributed second fixing ear plates are fixedly connected to the outer side of the outer frame, with the first fixing ear plates and the second fixing ear plates corresponding to each other. The positioning frame and the outer frame are connected and fixed by assembling and fixing the plurality of first fixing ear plates and second fixing ear plates.

[0014] In one or more embodiments of this utility model, spacers are evenly distributed between a plurality of first fixing ear plates and second fixing ear plates. The spacers serve to connect and limit the first fixing ear plates and second fixing ear plates. Multiple sets of fixing bolts are fixedly connected between the plurality of first fixing ear plates and second fixing ear plates. The first fixing ear plates and second fixing ear plates are assembled and fixed using the multiple sets of fixing bolts.

[0015] In one or more embodiments of this utility model, the linkage shaft and the fan blade assembly are fixedly connected by bonding or welding. By connecting and fixing the linkage shaft to the positioning frame, the linkage shaft can rotate synchronously with the rotation of the positioning frame. Each of the multiple sets of cleaning plates has a cleaning brush fixedly connected to the side closest to the first dust filter. The cleaning brush cleans the dust adhering to the surface of the first dust filter through mutual contact with the first dust filter.

[0016] In one or more embodiments of this utility model, an adhesive ring is fixedly attached to the inner wall of the positioning frame, and the adhesive ring is fitted onto the outer side of multiple sets of cleaning plates. The adhesive ring adheres to the dust that enters the positioning frame during the cleaning process of the cleaning plates.

[0017] In one or more embodiments of this utility model, a connecting outer plate is fixedly connected to the outer side of the first dust filter, and the connecting outer plate is fixedly connected to the inner wall of the positioning frame. The connecting outer plate serves to connect the first dust filter and the positioning frame. The connecting outer plate has multiple assembly through holes corresponding to the positioning through holes. The connecting outer plate is assisted in assembly and fixing by using assembly bolts passing through the assembly through holes.

[0018] A chassis includes a cooling fan and a chassis body, wherein a side panel is fixedly mounted on one side of the chassis body.

[0019] Compared with the prior art, the cooling fan disclosed in this utility model can assist in cleaning the dust adhering to the dust filter by setting up a linkage cleaning component, which reduces the occurrence of dust adhesion on the dust filter, ensures the ventilation effect of the cooling fan, and improves the reliability of the cooling fan. Attached Figure Description

[0020] 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 recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the cooling fan structure in one embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the cooling fan from another angle in one embodiment of the present invention;

[0023] Figure 3 This is a front sectional view of a cooling fan in one embodiment of the present invention;

[0024] Figure 4 for Figure 3 Schematic diagram of the structure at point A in the middle;

[0025] Figure 5 This is a perspective view of a cooling fan in one embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the chassis structure in one embodiment of the present invention.

[0027] Explanation of key figure labels:

[0028] 1-Outer frame, 101-Fan blade assembly, 102-Assembly bolts, 103-Support frame, 2-Dust filter limiting assembly, 201-Fixing plate, 202-Second dust filter, 203-Positioning sleeve, 3-Linkage cleaning assembly, 301-Positioning frame, 302-First dust filter, 303-Linkage rotating shaft, 304-Sweeping plate, 305-First fixing ear plate, 306-Second fixing ear plate, 307-Padded block, 308-Fixing bolt assembly, 309-Sweeping brush, 310-Dust sticking ring, 311-Connecting outer plate, 4-Chassis body, 5-Side plate. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0030] like Figures 1 to 5 As shown, a cooling fan in one embodiment of the present invention includes: an outer frame 1, a fan blade assembly 101, a dust filter limiting component 2, and a linkage cleaning component 3.

[0031] like Figures 3 to 4 As shown, a fan blade assembly 101 is rotatably mounted inside the outer frame 1. The rotation of the fan blade assembly 101 drives the airflow.

[0032] like Figures 1 to 2 As shown, the outer frame 1 has multiple evenly distributed positioning through holes on its outer side, and assembly bolts 102 are inserted into the positioning through holes. The outer frame 1 is assembled and fixed to the chassis body 4 by inserting the assembly bolts 102 through the positioning through holes and the assembly through holes.

[0033] like Figure 1 As shown, a support frame 103 is fixedly mounted on the air outlet side of the outer frame 1. The support frame 103 is used to limit the assembly and positioning of the fan blade assembly 101.

[0034] like Figures 1 to 2 As shown, the dust filter limiting assembly 2 is fixedly assembled on the air inlet side of the outer frame 1. The dust filter limiting assembly 2 includes a fixing plate 201, which is inserted and assembled on the air inlet side of the outer frame 1. The fixing plate 201 assembles and fixes the second dust filter 202.

[0035] like Figures 1 to 2 As shown, a second dust filter 202 is fixedly connected inside the fixed plate 201. The second dust filter 202 performs secondary dust filtration on the air guided by the fan blade assembly 101 during rotation.

[0036] like Figures 1 to 2 As shown, multiple positioning sleeves 203 are integrally formed on the side of the fixing plate 201 close to the outer frame 1, and the multiple positioning sleeves 203 are all inserted and assembled on the air inlet side of the outer frame 1. The fixing plate 201 is assembled and limited by the insertion and cooperation between the positioning sleeves 203 and the outer frame 1.

[0037] like Figures 1 to 2 As shown, the linkage cleaning component 3 is mounted on the outside of the fixed plate 201. The linkage cleaning component 3 includes a positioning frame 301, which is fixedly mounted on the air inlet side of the outer frame 1. The positioning frame 301 assembles and fixes the first dust filter 302 and the connecting outer plate 311.

[0038] like Figures 3 to 4 As shown, a plurality of evenly distributed first fixing ear plates 305 are fixedly connected to the outer side of the positioning frame 301, and a plurality of evenly distributed second fixing ear plates 306 are fixedly connected to the outer side of the outer frame 1. The first fixing ear plates 305 and the second fixing ear plates 306 are correspondingly arranged. The positioning frame 301 and the outer frame 1 are connected and fixed by assembling and fixing the plurality of first fixing ear plates 305 and second fixing ear plates 306.

[0039] like Figures 3 to 4 As shown, spacers 307 are evenly distributed between multiple first fixing ear plates 305 and second fixing ear plates 306. The spacers 307 serve to connect and limit the first fixing ear plates 305 and second fixing ear plates 306. Multiple sets of fixing bolts 308 are fixedly connected between the multiple first fixing ear plates 305 and second fixing ear plates 306. The first fixing ear plates 305 and second fixing ear plates 306 are assembled and fixed using the multiple sets of fixing bolts 308.

[0040] like Figure 5 As shown, a first dust filter 302 is fixedly connected to the side of the positioning frame 301 opposite to the outer frame 1. The first dust filter 302 filters the air entering the outer frame 1.

[0041] like Figures 2 to 3 As shown, a linkage shaft 303 is rotatably mounted inside the positioning frame 301. The linkage shaft 303 serves to connect the fan blade assembly 101 and the linkage shaft 303, so that the linkage shaft 303 can rotate synchronously with the rotation of the fan blade assembly 101.

[0042] It is worth noting that the linkage shaft 303 and the fan blade assembly 101 are fixedly connected by adhesive or welding. By connecting and fixing the linkage shaft 303 to the positioning frame 301, the linkage shaft 303 can rotate synchronously with the rotation of the positioning frame 301.

[0043] Preferably, the linkage shaft 303 and the fan blade assembly 101 are connected by adhesive bonding.

[0044] like Figures 3 to 4 As shown, multiple sets of evenly distributed cleaning plates 304 are fixedly connected to the outer side of the linkage shaft 303, and the cleaning plates 304 are configured in conjunction with the first dust filter 302.

[0045] like Figures 3 to 4 As shown, each of the multiple sets of cleaning plates 304 has a cleaning brush 309 fixedly connected to one side of the first dust filter 302. The dust adhering to the surface of the first dust filter 302 is cleaned by the contact between the cleaning brush 309 and the first dust filter 302.

[0046] like Figures 1 to 2 As shown, a dust-adhesive ring 310 is fixedly attached to the inner wall of the positioning frame 301, and the dust-adhesive ring 310 is fitted onto the outer side of the multiple sets of cleaning plates 304. The dust-adhesive ring 310 is used to adhere to the dust that enters the positioning frame 301 during the cleaning process of the cleaning plates 304.

[0047] like Figure 5 As shown, a connecting outer plate 311 is fixedly connected to the outer side of the first dust filter 302, and the connecting outer plate 311 is fixedly connected to the inner wall of the positioning frame 301. The connecting outer plate 311 serves to connect the first dust filter 302 and the positioning frame 301.

[0048] In addition, the connecting outer plate 311 has multiple assembly through holes corresponding to the positioning through holes. The connecting outer plate 311 is assisted in assembly and fixation by means of assembly bolts 102 passing through the assembly through holes.

[0049] A chassis includes a cooling fan and a chassis body 4, with a side panel 5 fixedly mounted on one side of the chassis body 4.

[0050] In practical use, the cooling fan can be fixedly installed inside the chassis body 4 by means of threaded connection between the mounting bolt 102 and the chassis body 4. During the operation of the cooling fan, the rotation of the fan blade assembly 101 will drive the airflow, thereby dissipating heat from the chassis body 4.

[0051] When outside air enters the outer frame 1 under the guidance of the fan blade assembly 101, it is filtered by the first dust filter 302 and the second dust filter 202. The filtered air can then provide auxiliary cooling for the chassis body 4. Simultaneously, the fan blade assembly 101 rotates, causing the linkage shaft 303 to rotate synchronously. This linkage shaft 303 drives the cleaning plate 304 and cleaning brush 309 to rotate and clean the first dust filter 302, reducing the risk of dust blockage and ensuring the stability of the ventilation and dust filtration of the first dust filter 302.

[0052] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0053] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cooling fan, characterized in that, include: The outer frame, within which a fan blade assembly is rotatably mounted; A dust filter limiting assembly is fixedly installed on the air inlet side of the outer frame. The dust filter limiting assembly includes a fixing plate, which is inserted and installed on the air inlet side of the outer frame. A second dust filter is fixedly connected inside the fixing plate. A linkage cleaning assembly is fitted onto the outside of the fixed plate. The linkage cleaning assembly includes a positioning frame, which is fixedly mounted on the air inlet side of the outer frame. A first dust filter is fixedly connected to the side of the positioning frame away from the outer frame. A linkage shaft is rotatably mounted inside the positioning frame. Multiple sets of evenly distributed cleaning plates are fixedly connected to the outside of the linkage shaft. The cleaning plates are configured to cooperate with the first dust filter.

2. A cooling fan according to claim 1, characterized in that, The outer frame has multiple evenly distributed positioning through holes on its outer side, and mounting bolts are inserted into the positioning through holes. A support frame is fixedly mounted on the air outlet side of the outer frame.

3. A cooling fan according to claim 1, characterized in that, The fixing plate has multiple positioning sleeves integrally formed on the side close to the outer frame, and the multiple positioning sleeves are all inserted and assembled on the air inlet side of the outer frame.

4. A cooling fan according to claim 1, characterized in that, The outer side of the positioning frame is fixedly connected with a plurality of evenly distributed first fixing ear plates, and the outer side of the outer frame is fixedly connected with a plurality of evenly distributed second fixing ear plates, with the first fixing ear plates and the second fixing ear plates being arranged correspondingly.

5. A cooling fan according to claim 4, characterized in that, Spacers are evenly distributed between the first fixing ear plates and the second fixing ear plates, and multiple sets of fixing bolts are fixedly connected between the first fixing ear plates and the second fixing ear plates.

6. A cooling fan according to claim 1, characterized in that, The linkage shaft and the fan blade assembly are fixedly connected by bonding or welding, and each of the multiple sets of cleaning plates has a cleaning brush fixedly connected to the side of the first dust filter screen.

7. A cooling fan according to claim 1, characterized in that, A dust-adhesive ring is fixedly attached to the inner wall of the positioning frame, and the dust-adhesive ring is fitted onto the outer side of multiple sets of cleaning plates.

8. A cooling fan according to any one of claims 2, 3, 4, 5 or 6, characterized in that, A dust-adhesive ring is fixedly attached to the inner wall of the positioning frame, and the dust-adhesive ring is fitted onto the outer side of multiple sets of cleaning plates.

9. A cooling fan according to claim 1, characterized in that, The outer side of the first dust filter is fixedly connected to a connecting outer plate, which is fixedly connected to the inner wall of the positioning frame. The connecting outer plate has multiple assembly through holes corresponding to the positioning through holes.

10. A chassis comprising a cooling fan as described in any one of claims 1-9, characterized in that, It also includes a chassis body, one side of which is fixedly fitted with a side plate.

Images