Cooling fan

Abstract

The utility model provides a cooling fan which comprises a fan frame, an impeller is pivoted to the middle of the fan frame, the fan frame is provided with an inner ring body on the air outlet face of the impeller, the inner ring body is annularly arranged on the periphery of the impeller, and the inner ring body is provided with a diffusion inclined part with an inclined opening from inside to outside. According to the cooling fan, through the split design of the inner ring body and the fan frame, the vibration effect of the fan frame can be reduced, noise can be reduced, in addition, through the adoption of the wood inner ring body, the natural characteristics of wood materials can be utilized, vibration and noise of the fan during operation are remarkably reduced, and the overall user experience of equipment is improved.

Description

Technical Field

[0001] This application relates to the technical field of heat dissipation devices, and particularly relates to a cooling fan. Background Art

[0002] In modern electronic devices, cooling fans are crucial components, mainly used to maintain the normal operating temperature of the devices.

[0003] Currently, with the increase in power consumption of software programs such as competitive games, big data processing, and graphics rendering, the heat in the chassis increases. To enhance heat dissipation, generally, methods such as increasing the fan speed or using multiple fans in combination are adopted.

[0004] However, with the increase in speed or the number of fans, the noise will increase, affecting the usage environment.

[0005] Therefore, it is particularly important to develop a new type of cooling fan to improve the heat dissipation effect, reduce noise, and simplify the installation process. Utility Model Content

[0006] To overcome the defects of the above-mentioned prior art, this application provides a cooling fan to improve the heat dissipation effect and significantly reduce noise.

[0007] Specifically, this application provides a cooling fan. The cooling fan includes a fan frame, an impeller is pivotally connected to the middle of the fan frame. An inner ring body is provided on the air outlet surface of the impeller of the fan frame. The inner ring body is disposed around the outer periphery of the impeller, and the inner ring body is provided with a diffusion inclined portion that is inclined and open from the inside to the outside.

[0008] In an alternative implementation, the inner ring body is a wooden inner ring body.

[0009] In an alternative implementation, the fan frame is provided with a mounting groove portion for accommodating the inner ring body.

[0010] In an alternative implementation, the side wall of the mounting groove portion is provided with a clamping strip, and the outer wall of the inner ring body is provided with a clamping groove that cooperates with the clamping strip.

[0011] In an alternative implementation, the side portion of the fan frame is provided with a fixing hole that penetrates through to the mounting groove portion. The inner ring body is provided with an inner hole, and the fixing hole and the inner hole are arranged in alignment.

[0012] In an alternative implementation, the side portion of the fan frame is provided with a side groove, and the fixing hole penetrates through to the mounting groove portion from the side groove; a side patch is provided in the side groove.

[0013] In an alternative implementation, the fan frame is provided with a flared portion on the air inlet surface of the impeller, and the flared portion is disposed around the outer periphery of the impeller.

[0014] According to the technical solutions provided by the foregoing implementation manners, the cooling fan of the present application has at least the following advantages:

[0015] (1) Through the split design of the inner ring body and the fan frame, the vibration effect of the fan frame can be reduced, and the generation of noise can be lowered.

[0016] (2) By adopting a wooden inner ring body, the natural characteristics of the wooden material can be utilized to significantly reduce the vibration and noise of the fan during operation, and the overall user experience of the device is improved.

[0017] (3) Through the design of the diffusion inclined part of the inner ring body and the setting of the flared part, the air flow can be evenly diffused after passing through the impeller, thereby improving the heat dissipation efficiency.

[0018] (4) Through the design of the installation groove part, the clamping strip and the fixing hole, the installation process of the inner ring body becomes simple and fast, and the production and maintenance costs are reduced.

[0019] (5) The use of wooden materials not only improves the heat dissipation performance of the fan, but also provides a more aesthetic choice for users in terms of appearance, adapting to the design styles of modern home and office environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the cooling fan provided by an embodiment of the present application.

[0022] Figure 2 It is an exploded view schematic diagram of the cooling fan provided by an embodiment of the present application.

[0023] Figure 3 It is a side view schematic diagram of the cooling fan provided by an embodiment of the present application, in which the side patch is removed to show the fixing hole.

[0024] Figure 4 It is a schematic diagram of the inner ring body of the cooling fan provided by an embodiment of the present application.

[0025] Figure 5 It is a schematic diagram of the fan frame of the cooling fan provided by an embodiment of the present application.

[0026] Figure 6 It is a back view schematic diagram of the fan frame of the cooling fan provided by an embodiment of the present application.

[0027] Description of the reference numerals in the drawings:

[0028] 1. Fan frame; 2. Impeller; 3. Inner ring body; 11. Mounting groove part; 111. Card slot; 12. Fixed hole; 13. Side groove; 14. Side patch; 15. Flared part; 16. Machine base; 17. Rib; 171. Wire groove; 18. Corner groove; 19. Corner patch; 31. Diffusion inclined part; 32. Card strip; 33. Inner hole. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0030] In this article, terms such as "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise stated, the meaning of "a plurality" is two or more.

[0031] In addition, in this article, orientation terms such as "upper" and "lower" are defined relative to the orientation of the structural schematic placement in the drawings. It should be understood that these directional terms are relative concepts, and they are used for relative description and clarification, and they can change accordingly with the change of the orientation where the structure is placed.

[0032] Please refer to Figures 1 to 6 , an embodiment of the present application provides a cooling fan.

[0033] Specifically, in combination with Figure 1 and Figure 4 as shown, the cooling fan includes a fan frame 1, an impeller 2 is pivotally connected to the middle of the fan frame 1, an inner ring body 3 is provided on the air outlet surface of the impeller 2 of the fan frame 1, the inner ring body 3 is arranged around the outer periphery of the impeller 2, and the inner ring body 3 is provided with a diffusion inclined part 31 that is inclined and open from the inside to the outside.

[0034] According to conventional means, the impeller 2 can be driven to rotate at a high speed by a driving mechanism such as a motor (not shown in the figure), so that the impeller 2 generates an air flow, and the formed air flow can exhaust and dissipate heat from spaces such as the chassis.

[0035] In the present application, by forming a split combination assembly of the inner ring body 3 and the fan frame 1, it is possible to avoid the frictional vibration of the overall fan frame 1 caused by the air flow formed by the impeller 2, reduce the vibration of the fan frame 1, and further reduce the noise generated by the vibration of the weak components of the fan frame 1.

[0036] In this embodiment, the inner ring body 3 is a wooden inner ring body.

[0037] Wooden materials usually have certain sound absorption and shock absorption properties, which can reduce the noise generated during the operation of the fan to a certain extent. The texture and structure of the wooden materials can absorb and disperse the noise, reducing the transmission and reflection of the noise. In addition, the wooden materials can also reduce the vibration during the operation of the fan, further reducing the noise level.

[0038] Combined with Figure 2 and Figure 5 As shown, in this embodiment, the fan frame 1 is provided with a mounting groove portion 11 for accommodating the inner ring body 3. The mounting groove portion 11 can facilitate the assembly of the inner ring body 3.

[0039] Combined with Figure 2 , Figure 4 and Figure 5 As shown, in this embodiment, a clamping strip 32 is provided on the side wall of the mounting groove portion 11, and a clamping groove 111 is provided on the outer wall of the inner ring body 3 and is matched with the clamping strip 32. Through the cooperation of the clamping strip 32 and the clamping groove 111, it is convenient for the alignment installation of the inner ring body 3 and fixing the position of the inner ring body 3.

[0040] Combined with Figure 4 and Figure 5 As shown, in this embodiment, a fixing hole 12 is provided on the side portion of the fan frame 1, and the fixing hole 12 penetrates through to the mounting groove portion 11. The inner ring body 3 is provided with an inner hole 33, and the fixing hole 12 and the inner hole 33 are arranged in alignment. During the assembly process, fasteners such as screws can be inserted through the fixing hole 12 and the inner hole 33 in sequence, so as to fix the inner ring body 3 in the mounting groove portion 11 of the fan frame 1.

[0041] Combined with Figure 2 , Figure 3 and Figure 5 As shown, in this embodiment, a side groove 13 is provided on the side portion of the fan frame 1, and the fixing hole 12 penetrates through to the mounting groove portion 11 from the side groove 13; a side patch 14 is provided in the side groove 13. When fasteners such as screws (not shown in the figure) are inserted, by pasting the side patch 14, the fixing hole 12 and the fasteners can be blocked, which not only avoids the loosening of the fasteners but also makes the whole more beautiful.

[0042] In this embodiment, the side patch 14 can be made of a wooden sheet material.

[0043] In this embodiment, in order to make the inner ring body 3 more stable, the side groove 13 can be provided in two, and the two side grooves 13 are symmetrically arranged on the opposite sides of the fan frame 1.

[0044] Combined with Figure 6As shown, in this embodiment, the fan frame 1 is provided with a flared portion 15 on the air inlet surface of the impeller 2, and the flared portion 15 is arranged around the outer periphery of the impeller 2. Through the design of the diffusion inclined portion 31 of the inner ring body 3 and the setting of the flared portion 15, the air flow can be evenly diffused after passing through the impeller 2, thereby improving the heat dissipation efficiency.

[0045] Combined with Figure 5 and Figure 6 As shown, in this embodiment, the fan frame 1 is provided with a base 16, the base 16 is connected to the fan frame 1 through a plurality of ribs 17, and the impeller 2 is pivotally connected to the base 16. Specifically, a driving mechanism such as a motor can be installed on the base.

[0046] Combined with Figure 6 As shown, in order to facilitate the layout of the circuit, in this embodiment, a wire groove 171 for accommodating the circuit is provided on one of the ribs 17.

[0047] Combined with Figure 1 、 Figure 2 and Figure 5 As shown, corner grooves 18 are provided at each corner of the upper and lower surfaces of the fan frame 1, and corner patches 19 are provided in the corner grooves 18. The corner patches 19 protrude from the surface of the fan frame 1. When the cooling fan is placed on a platform such as a desktop, a gap can be formed between the surface of the cooling fan and the platform surface, avoiding scratching the surface of the fan frame 1.

[0048] The above has introduced the cooling fan provided by the embodiment of the present application in detail, and specific embodiments are used to explain the principle and implementation manner of the present application. The above description is only used to help understand the method and its core mechanism of the present application; at the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in the specific embodiments and application scopes. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A cooling fan, characterized in that: The heat dissipation fan comprises a fan frame, wherein an impeller is pivotally connected to the middle of the fan frame, and an inner ring body is arranged on the air outlet surface of the impeller. The inner ring body is arranged around the outer periphery of the impeller, and the inner ring body is provided with a diffusion slope which is inclined and open from the inside to the outside.

2. The heat dissipation fan according to claim 1, characterized in that: The inner ring body is a wooden inner ring body.

3. The heat dissipation fan according to claim 1, characterized in that: The fan frame is provided with a mounting groove portion for accommodating the inner ring body.

4. The heat dissipation fan according to claim 3, characterized in that: A clamping strip is disposed on the side wall of the installation groove portion, and a clamping groove matched with the clamping strip is disposed on the outer wall of the inner ring body.

5. The heat dissipation fan according to claim 3, characterized in that: A fixing hole is provided on the side of the fan frame, and the fixing hole penetrates into the installation groove. The inner ring body is provided with an inner hole, and the fixing hole is arranged in alignment with the inner hole.

6. The heat dissipation fan according to claim 5, characterized in that: The side portion of the fan frame is provided with a side groove, and the fixing hole passes through the side groove to the installation groove portion; the side groove is provided with a side patch.

7. The heat dissipation fan according to claim 6, characterized in that: There are two side grooves, and the two side grooves are symmetrically arranged on opposite sides of the fan frame.

8. The heat dissipation fan according to claim 1, characterized in that: The fan frame is provided with a flared portion on the air inlet surface of the impeller, and the flared portion is arranged around the outer circumference of the impeller.

9. The heat dissipation fan according to claim 1, characterized in that: The fan frame is provided with a machine base, the machine base is connected to the fan frame through a plurality of ribs, and the impeller is pivotally connected to the machine base.

10. The heat dissipation fan according to claim 9, characterized in that: The ribs are provided with wire grooves for accommodating wires.

Images