Fan frame, fan and heating device

Abstract

The utility model relates to a fan frame, a fan and a heating device. The fan frame is used for installing a fan impeller, an installation cavity which is arranged in the first direction and provided with two open ends is formed in a frame body of the fan frame, the installation cavity is used for installing the fan impeller, and the two ends of the installation cavity are an air inlet side and an air outlet side respectively. A noise reduction structure is arranged on a frame body of the fan frame, and the noise reduction structure is provided with a plurality of holes. The fan comprises the fan frame. The heating device comprises the fan. According to the fan, the noise reduction structure with the multiple holes is arranged in the frame body, when sound waves caused by airflow generated by the fan penetrate through the multiple holes, part of the sound waves are consumed in the multiple holes through oscillation, in this way, the sound waves spread to the outside are reduced, and the effect of reducing noise can be achieved.

Description

Technical Field

[0001] This application relates to the field of heat dissipation devices, and more specifically to a fan frame, and a fan and a heat-generating device including the fan frame. Background Technology

[0002] Many devices used in people's production and daily life generate and radiate heat during operation, such as various types of electronic equipment, electrical components, and structural parts that enable mechanical movement. If the heat generated by these devices cannot be effectively dissipated, it will affect the normal operation of the devices and may even lead to their damage. A common solution to this heat dissipation problem is to install fans or similar devices in the devices to accelerate the airflow around them and dissipate the heat generated during operation to the outside.

[0003] Existing fans for heat dissipation consist of a fan frame and an impeller. The impeller has blades that rotate to drive airflow and achieve heat dissipation. However, a problem with this in practice is that significant noise is generated during the rotation of the blades and the fanning of the airflow. This noise increases significantly with the increase of the blade rotation speed, and in some cases, the noise generated by the blade rotation can become unbearable. Utility Model Content

[0004] This application provides a fan frame, a fan, and a heating device to solve the technical problem of significant noise from fans during heat dissipation in the prior art.

[0005] The fan frame provided by this utility model is used to install a fan impeller. The frame of the fan frame has a mounting cavity formed on the frame body, which is arranged along a first direction and open at both ends. The mounting cavity is used to install the fan impeller. The two ends of the mounting cavity are the air inlet side and the air outlet side, respectively. The frame body of the fan frame is provided with a noise reduction structure, which is a plurality of holes.

[0006] The plurality of holes includes a first plurality of holes, which are disposed on the flange surface on the air inlet side of the fan frame.

[0007] The plurality of holes includes a second plurality of holes, which are disposed on the flange surface of the air outlet side of the fan frame.

[0008] The plurality of holes includes a third plurality of holes, which are disposed on the hub surface of the air outlet side of the fan frame.

[0009] The plurality of holes includes a fourth plurality of holes, which are disposed on the side of the fan frame.

[0010] The plurality of holes includes at least two of a first plurality of holes, a second plurality of holes, a third plurality of holes, and a fourth plurality of holes; the first plurality of holes are disposed on the flange surface of the air inlet side of the fan frame; the second plurality of holes are disposed on the flange surface of the air outlet side of the fan frame; the third plurality of holes are disposed on the hub surface of the air outlet side of the fan frame; and the fourth plurality of holes are disposed on the side of the fan frame.

[0011] The plurality of holes are either through holes or blind holes.

[0012] The cross-sectional shape of each hole in the plurality of holes is any one of a circle, an ellipse, and a polygon, or a closed shape including a variable curvature arc, or a closed shape including an arc segment and a straight line segment enclosed by them.

[0013] The fan provided by this utility model includes a fan impeller and a fan frame. The fan impeller is mounted and fixed on the fan frame, which is the aforementioned fan frame.

[0014] The heating device provided by this utility model includes the aforementioned fan, which is used to dissipate heat from the heating device.

[0015] The technical solutions provided in this application have the following advantages compared with the prior art:

[0016] The fan frame, fan, and heating device provided in this application embodiment have a fan impeller disposed within the mounting cavity of the fan frame, generating airflow within the mounting cavity from the air inlet side to the air outlet side. When the airflow flows within the mounting cavity, noise is generated due to the interaction between the fan blades and the air, as well as the interaction between the flowing air and the fan frame. The above embodiment of this utility model provides a noise reduction structure with multiple holes within the fan frame. Sound waves, such as noise generated by the airflow, first pass through the fan frame and then through the multiple holes during their outward propagation. As they pass through the multiple holes, some of the sound waves are oscillated and consumed within the holes, thus reducing the sound waves propagating to the outside and achieving a noise reduction effect. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0018] 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, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0020] Figure 1 This is a schematic diagram of the fan frame structure in one embodiment of the present invention;

[0021] Figure 2 This is a structural diagram of an existing fan frame;

[0022] Figure 3 This is a noise comparison diagram between the fan frame of this utility model and an existing fan frame when applied to a fan.

[0023] Figure 4 This is a schematic diagram of the fan frame structure in another embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the fan frame structure in another embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the fan frame structure in another embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the fan frame structure in another embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram showing that the multiple holes in this utility model are through holes;

[0028] Figure 9 This is a schematic diagram showing that the multiple holes in this utility model are blind holes;

[0029] Figure 10a and Figure 10b This is a schematic diagram showing the irregular shape of the cross-section of a complex number of holes.

[0030] Explanation of reference numerals in the attached figures:

[0031] 10-Fan frame; 11-Mounting cavity; 11a-Inlet side; 11b-Outlet side; 12-Multiple holes;

[0032] 20-Fan impeller;

[0033] 30 - Fan blades. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0036] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0037] In one embodiment of the fan frame provided by this utility model, such as Figure 1 As shown, the fan frame 10 is used to install the fan impeller 20. The frame of the fan frame 10 has a mounting cavity 11 that is arranged along a first direction and open at both ends. The mounting cavity 11 is used to install the fan impeller 20. The two ends of the mounting cavity 11 are the air inlet side 11a and the air outlet side 11b, respectively. The frame of the fan frame 10 is provided with a noise reduction structure, which is a plurality of holes 12.

[0038] In this embodiment, a fan blade 30 is provided on the fan impeller 20. The fan impeller 20 is connected to the drive device and can rotate under the drive of the drive device. The fan blade 30 connected to the fan impeller 20 rotates synchronously. The rotation of the fan blade 30 acts on the surrounding air to form an airflow. The airflow can carry away heat when it flows, thereby producing a heat dissipation effect.

[0039] In this embodiment, the fan impeller 20 is disposed within the mounting cavity 11 of the fan frame 10, and the airflow generated by the fan blades 30 also flows approximately along the mounting cavity 11, from the air inlet side 11a to the air outlet side 11b. When the airflow flows within the mounting cavity 11, noise is generated due to the interaction between the fan blades 30 and the air, as well as the interaction between the flowing air and the fan frame, etc.

[0040] In this embodiment, a noise reduction structure with multiple holes 12 is provided inside the fan frame 10. Noise and other sound waves generated by airflow will first pass through the frame of the fan frame 10 during their outward propagation, and thus pass through the multiple holes 12. As they pass through the multiple holes 12, some of the sound waves are oscillated and consumed within the holes 12, thereby reducing the amount of sound waves propagating to the outside and achieving a noise reduction effect.

[0041] like Figure 3 As shown in the figure, the darker and thicker lines represent the noise at different frequencies of the fan when the fan frame with multiple holes 12 is applied to the fan. For comparison, Figure 2 For existing fan frames that do not have multiple holes 12, Figure 3 The lighter, thinner lines represent the noise levels at different frequencies when the fan frame without the multiple holes 12 is used in a fan. By comparison, it can be seen that throughout the entire fan operation process, from low to high frequency, the maximum noise level generated by the fan without the multiple holes 12 is significantly higher than that generated by the fan with the multiple holes 12. Furthermore, regarding the overall noise value shown on the far right of the figure, the overall noise level of the fan with the multiple holes 12 is 71.6 dB, while the overall noise level of the fan without the multiple holes 12 is 74.1 dB. Therefore, it is evident that the fan frame with the multiple holes 12, when used in this embodiment of the invention, significantly reduces the noise generated during fan operation.

[0042] In one embodiment of this utility model, such as Figure 1As shown, the plurality of holes 12 includes a first plurality of holes 12a, which are disposed on the flange surface of the air inlet side 11a of the fan frame 10.

[0043] In one embodiment of this utility model, such as Figure 4 As shown, the plurality of holes includes a second plurality of holes 12b, which are disposed on the flange surface of the air outlet side 11b of the fan frame 10.

[0044] In one embodiment of this utility model, such as Figure 5 As shown, the plurality of holes 12 includes a third plurality of holes 12c, which are disposed on the hub surface of the air outlet side 11b of the fan frame 10.

[0045] In one embodiment of this utility model, such as Figure 6 As shown, the plurality of holes 12 includes a fourth plurality of holes 12d, which are disposed on the side of the fan frame 10.

[0046] In one embodiment of this utility model, such as Figure 7 As shown, the plurality of holes 12 includes at least two of a first plurality of holes 12a, a second plurality of holes 12b, a third plurality of holes 12c, and a fourth plurality of holes 12d; the first plurality of holes 12a are disposed on the flange surface of the air inlet side 11a of the fan frame 10; the second plurality of holes 12b are disposed on the flange surface of the air outlet side 11b of the fan frame 10; the third plurality of holes 12c are disposed on the hub surface of the air outlet side 11b of the fan frame 10 (the third plurality of holes 12c are located on...). Figure 7 The middle hole is located on the back side and is therefore not shown. The arrangement of the third plurality of holes 12c can be referenced. Figure 5 The fourth plurality of holes 12d are disposed on the side of the fan frame 10.

[0047] In one embodiment of this utility model, such as Figure 8 and Figure 9 As shown, the plurality of holes 12 are through holes or blind holes.

[0048] In one embodiment of this utility model, the cross-sectional shape of each of the plurality of holes 12 is any one of a circle, an ellipse, and a polygon, or a closed shape including a variable curvature arc (such as...). Figure 10a (as shown), or a closed figure consisting of arc segments and straight line segments enclosed by them (such as...). Figure 10b (As shown).

[0049] In summary, the fan frame provided in the above embodiments of this utility model has a fan impeller 20 disposed within the mounting cavity 11 of the fan frame 10, generating airflow within the mounting cavity 11 from the air inlet side 11a to the air outlet side 11b. When the airflow flows within the mounting cavity 11, noise is generated due to the interaction between the fan blades 30 and the air, as well as the interaction between the flowing air and the fan frame. The above embodiments of this utility model provide a noise reduction structure with a plurality of holes 12 within the fan frame 10. Noise waves generated by the airflow will first pass through the frame of the fan frame 10 during their outward propagation, and thus pass through the plurality of holes 12. During this passage through the plurality of holes 12, some of the sound waves are oscillated and consumed within the holes 12, thereby reducing the sound waves propagating to the outside and achieving a noise reduction effect.

[0050] In one embodiment of the fan of this utility model, the fan includes a fan impeller 20 and a fan frame 10, the fan impeller 20 is mounted and fixed on the fan frame 10, and the fan frame 10 is the fan frame described in the above embodiment.

[0051] The fan in this embodiment of the present invention includes the fan frame described in the above embodiments of the present invention, and naturally has the same beneficial effects as the fan frame described above, which will not be repeated here.

[0052] In one embodiment of the heating device of this utility model, the heating device includes the fan described in the above embodiment, and the fan is used to dissipate heat from the heating device.

[0053] In this embodiment of the invention, the heating device includes various devices that generate heat during operation and have the need to dissipate that heat, such as various types of electronic devices, various electrical components, and various structural parts that realize mechanical movement. It should be emphasized that the heating device referred to in this embodiment of the invention should not be construed as a device intended to generate heat.

[0054] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0055] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0056] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A fan frame for mounting a fan impeller, characterized in that, The fan frame has a mounting cavity formed on its frame body, which is arranged along a first direction and open at both ends. The mounting cavity is used to install the fan impeller, and the two ends of the mounting cavity are the air inlet side and the air outlet side, respectively. The fan frame is provided with a noise reduction structure, which consists of multiple holes.

2. The fan frame according to claim 1, characterized in that, The plurality of holes includes a first plurality of holes, which are disposed on the flange surface on the air inlet side of the fan frame.

3. The fan frame according to claim 1, characterized in that, The plurality of holes includes a second plurality of holes, which are disposed on the flange surface on the air outlet side of the fan frame.

4. The fan frame according to claim 1, characterized in that, The plurality of holes includes a third plurality of holes, which are disposed on the hub surface of the air outlet side of the fan frame.

5. The fan frame according to claim 1, characterized in that, The plurality of holes includes a fourth plurality of holes, which are disposed on the side of the fan frame.

6. The fan frame according to claim 1, characterized in that, The complex apertures include at least two of a first complex aperture, a second complex aperture, a third complex aperture, and a fourth complex aperture; The first plurality of holes are disposed on the flange surface of the fan frame on the air inlet side; the second plurality of holes are disposed on the flange surface of the fan frame on the air outlet side; the third plurality of holes are disposed on the hub surface of the fan frame on the air outlet side; and the fourth plurality of holes are disposed on the side of the fan frame.

7. The fan frame according to any one of claims 1 to 6, characterized in that, The plurality of holes are either through holes or blind holes.

8. The fan frame according to claim 1, characterized in that, The cross-sectional shape of each of the plurality of holes is any one of a circle, an ellipse, and a polygon, or a closed figure including a variable curvature arc, or a closed figure consisting of arc segments and straight line segments enclosed by them.

9. A fan, characterized in that, The fan includes a fan impeller and a fan frame, the fan impeller is mounted and fixed on the fan frame, and the fan frame is the fan frame as described in any one of claims 1 to 8.

10. A heating device, characterized in that, The heating device includes the fan as described in claim 9, the fan being used to dissipate heat from the heating device.

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