Air guide structure, heat dissipation device and medical equipment

Abstract

The utility model relates to an air guide structure, a heat dissipation device and medical equipment, the air guide structure comprises an air guide ring, an air guide port is formed in the middle of the air guide ring, the two sides of the air guide ring in the axis direction are a first end and a second end respectively, the first end is provided with a flaring ring, the second end is used for assembly connection, and the air guide ring is provided with a plurality of micropores. The plurality of micropores penetrate through the air guide ring in the radial direction of the air guide ring; the air guide structure is used for solving the problems of low heat dissipation efficiency and high noise when the heat dissipation fan works in a turbulent flow environment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat dissipation devices, in particular to a wind guide structure, a heat dissipation device and medical equipment. BACKGROUND

[0002] In a CT (Computed Tomography) system, the noise generated by the heat dissipation fan is one of the main noise sources. When the CT system is working, the irregular and unstable airflow generated by the rotation inside the cavity causes the heat dissipation fan to be in a turbulent working environment, which reduces the heat exchange efficiency of the heat dissipation fan, and also generates aerodynamic noise, affecting the user experience. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a wind guide structure, a heat dissipation device and medical equipment to solve the problem of low heat dissipation efficiency and high noise of the heat dissipation fan when working in a turbulent environment.

[0004] In a first aspect, the present application provides a wind guide structure, comprising a wind guide ring, a wind guide opening is formed in the middle of the wind guide ring, the two sides of the wind guide ring in the axial direction are respectively a first end and a second end, an expanded ring is arranged on the first end, the second end is used for assembly connection, a plurality of micro-holes are arranged on the wind guide ring, and the plurality of micro-holes penetrate the wind guide ring along the radial direction of the wind guide ring.

[0005] In a possible implementation manner, the inner wall surface of the expanded ring comprises an arc surface.

[0006] In a possible implementation manner, the cross-sectional shape of the micro-hole comprises a circle.

[0007] In a possible implementation manner, the plurality of micro-holes are uniformly and spacedly distributed on the wind guide ring.

[0008] In a second aspect, the present application provides a heat dissipation device, comprising a fan and a wind guide structure as described in the first aspect, and the wind guide structure is arranged on at least one air port of the fan.

[0009] In a possible implementation manner, the diameter of the wind guide opening of the wind guide structure is equal to the diameter of the air port.

[0010] In a possible implementation manner, the wind guide ring of the wind guide structure is detachably arranged on the fan through a connecting assembly.

[0011] In a possible implementation manner, the connecting assembly comprises a mounting plate, the mounting plate is arranged on the second end of the wind guide ring, a first connecting hole is arranged on the mounting plate, a second connecting hole is arranged on the fan in the alignment position of the first connecting hole, a locking piece is arranged on the first connecting hole, and the locking piece is screwed with the second connecting hole.

[0012] In a possible implementation, the connecting assembly is provided with a plurality of.

[0013] In a third aspect, the present application provides a medical device comprising the heat dissipation device according to the second aspect.

[0014] Compared with the prior art, the above technical solutions provided by the embodiments of the present application have the following advantages:

[0015] The air guide structure, the heat dissipation device and the medical device provided by the embodiments of the present application are characterized in that the second end of the air guide structure is used to connect with the air inlet of the heat dissipation fan, and when the heat dissipation fan is working, external air can enter through the air inlet or be blown out through the air inlet. The air guide structure is connected with the air inlet through the air guide hole of the air guide ring, and the airflow flows close to the inner wall surface of the flared ring near the flared ring, thereby delaying the generation of complex flow phenomena such as flow separation, effectively reducing the turbulence of the airflow in the air guide hole, ensuring that the airflow passes through the air inlet into the heat dissipation fan more smoothly, thereby improving the working efficiency of the heat dissipation fan and improving the heat dissipation effect. In addition, by opening the micro-holes on the air guide ring, the friction and reflection of sound waves in the holes of the micro-holes will convert sound energy into heat energy, thereby reducing the propagation of sound waves, and effectively reducing the noise propagation generated by the heat dissipation fan when rotating at high speed. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application.

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, those skilled in the art can obtain other drawings from these drawings without any creative effort.

[0018] One or more embodiments are exemplarily illustrated by pictures in the drawings corresponding thereto, and these exemplary illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, unless otherwise specified. The drawings do not constitute a proportional limitation.

[0019] Figure 1 A perspective view of an air guide structure provided by the embodiments of the present application.

[0020] Figure 2 A side view of an air guide structure provided by the embodiments of the present application.

[0021] Figure 3A perspective view of a heat dissipation device is provided for the embodiment of the present application.

[0022] Figure 4 A perspective view of a fan in a heat dissipation device is provided for the embodiment of the present application.

[0023] Explanation of reference numerals:

[0024] 1, air guide ring; 2, air guide opening; 3, first end portion; 4, second end portion; 5, flared ring; 6, micropore; 7, fan; 8, air opening; 9, second connecting hole. DETAILED DESCRIPTION

[0025] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to 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 the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0026] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplicity, the elements and settings of particular examples in the following description are shown in great detail. Of course, they are merely examples and are presented to illustrate the application and not to limit the application. Furthermore, the application can be used in different examples without departing from the scope of the application. The reference numerals and / or letters are repeated in different examples for the purpose of simplicity and clarity and do not indicate the relationship between the various embodiments and / or settings discussed.

[0027] For the purpose of description, spatial relative terms as shown in the drawings, such as "inner", "outer", "inward", "outward", "lower", "below", "upper", "above", "front", "back", etc., can be used to describe the relative position relationship or movement of one element or feature with respect to another element or feature. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the drawings. For example, if the device in the drawings is turned over or the posture is changed or the movement state is changed, the directional indications will also change accordingly, for example: the element described as "below" or "under" another element or feature will be oriented as "above" or "over" the other element or feature. Therefore, the example term "below" can include both upward and downward positions. The device can be additionally oriented (rotated by 90 degrees or in other directions) and the spatial relative relationship descriptors used in the text are interpreted accordingly.

[0028] ReferenceFigures 1-3 The embodiment of the present application provides a wind guide structure, which comprises a wind guide ring 1, a wind guide opening 2 is formed in the middle of the wind guide ring 1, the two sides of the wind guide ring 1 in the axial direction are respectively a first end part 3 and a second end part 4, the first end part 3 is provided with a flared ring 5, the second end part 4 is used for assembly connection, a plurality of micro holes 6 are arranged on the wind guide ring 1, and the plurality of micro holes 6 penetrate through the wind guide ring 1 in the radial direction of the wind guide ring 1.

[0029] The second end part 4 of the wind guide structure is used for being connected with a wind port 8 of a cooling fan 7, and external air can enter or blow out through the wind port 8 when the cooling fan 7 works. The wind guide structure is communicated with the wind port 8 through the wind guide opening 2 of the wind guide ring 1, and the airflow flows close to the inner wall surface of the flared ring 5 near the flared ring 5 through the setting of the flared ring 5, so that the generation of complex flow phenomena such as flow separation is delayed, the turbulence degree of the airflow in the wind guide opening 2 can be effectively reduced, the airflow can be ensured to pass through the wind port 8 into the cooling fan 7 more stably, and therefore the working efficiency of the cooling fan 7 is improved, and the cooling effect is improved. In addition, the micro holes 6 are arranged on the wind guide ring 1, the sound energy is converted into heat energy through the friction and reflection of sound waves in the holes of the micro holes 6, so that the propagation of sound waves is reduced, and the noise propagation generated by the cooling fan 7 in high-speed rotation can be effectively reduced.

[0030] The inner wall surface of the flared ring 5 is used for realizing guidance, optimizing airflow flow and reducing resistance, can control airflow flow, realizes that the airflow flows close to the wall surface near the channel wall surface, thereby reducing the generation of airflow separation and turbulence. The inner wall of the flared ring 5 can be a bevel, a curved surface or a bent surface, for example, the inner wall surface of the flared ring 5 in the present application is a curved surface, and the inner wall surface of the curved surface structure is convenient for production and preparation.

[0031] The micro holes 6 on the wind guide ring 1 have small diameters, the micro holes 6 have sufficient sound resistance and sufficiently low mass resistance, and good broadband sound absorption can be obtained. In addition, when the sound waves pass through the micro holes 6, the air produces resistance and consumes part of the sound wave energy. The remaining sound waves pass through the micro holes 6 into the inner wall of the micro holes 6, the hole wall of the micro holes 6 causes multiple reflection and refraction of sound waves, multiple propagation and dissipation, converts sound energy into heat energy, consumes part of the sound wave energy, effectively reduces the reflection of sound waves, and plays a role of sound absorption, noise reduction and improvement of acoustic environment.

[0032] The cross-sectional shape of the micropores 6 can be rectangular, rhombic, triangular, circular, cruciform, or herringbone-shaped, etc., and each shape of the micropores 6 can play a sound-absorbing effect. In different application scenarios, the shape of the micropores 6 can be selected according to different use requirements. For example, in order to ensure the appearance, the cross-sectional shape of the micropores 6 can be star-shaped or heart-shaped, etc. In this application, the cross-sectional shape of the micropores 6 is circular. The circular shape is easy to manufacture and can be realized by simple stamping or mechanical processing technology, which reduces the cost and ensures the production efficiency. At the same time, the remaining material after punching the circular hole is easier to be recycled and reused, which reduces material waste. In addition, the circular hole can provide more uniform stress distribution, which helps to maintain the overall strength and stability of the air guide ring 1.

[0033] The plurality of micropores 6 are uniformly and spacedly distributed on the air guide ring 1. Through the uniform distribution of the micropores 6, the airflow can be more uniformly distributed on the entire surface of the air guide ring 1, rather than being concentrated in some areas. This can reduce the local resistance when the airflow passes through, reduce the generation of vortex and turbulence, and reduce the local stress concentration on the air guide ring 1, thereby improving the overall strength and durability of the air guide ring 1. In addition, it can also provide consistency and coordination in vision, and improve the appearance.

[0034] In summary, the air guide structure provided by the embodiment can ensure that the airflow flows close to the wall surface of the flared ring 5 when the airflow flows, thereby delaying the generation of complex flow phenomena such as flow separation, effectively reducing the turbulence degree of the airflow in the air guide opening 2, and ensuring that the airflow enters the cooling fan 7 more smoothly, thereby improving the working efficiency of the cooling fan 7 and improving the cooling effect. The air guide ring 1 is provided with a plurality of micropores 6, and the micropores 6 have a significant sound-absorbing effect, which can effectively reduce the noise propagation generated by the cooling fan 7 when rotating at high speed.

[0035] Referring to Figures 1-4 , the application also provides a cooling device comprising a fan 7 and the air guide structure as described above, which is arranged on at least one air opening 8 of the fan 7. The fan 7 with the above air guide structure can ensure that the airflow entering the fan 7 is stable, or the airflow discharged from the fan 7 is stably circulated to the outside environment, thereby reducing the turbulence degree of the airflow and reducing the noise.

[0036] Specifically, the air guide structure is arranged on at least one air port 8 of the fan 7, the air port 8 includes an air inlet 8 and an air outlet 8, the air inlet 8 of the fan 7 can be provided with the air guide structure, the air guide structure ensures that the airflow entering the fan 7 is stable, enhances the air guide effect, ensures the heat dissipation efficiency of the fan 7, and reduces noise; or the air outlet 8 of the fan 7 is provided with the air guide structure, the air guide structure ensures that the airflow discharged from the fan 7 is stably circulated to the outside, reduces the turbulence degree, and reduces the chaos and vortex of the airflow, thereby improving the heat dissipation efficiency and reducing the noise. Of course, the air inlet 8 and the air outlet 8 of the fan 7 can also be provided with the air guide structure, so that the turbulence of the air inlet 8 and the air outlet 8 of the fan 7 is reduced, and the heat dissipation efficiency and the noise are further improved. In addition, when the fan 7 has multiple air inlets 8 and / or multiple air outlets 8, the air inlets 8 and the air outlets 8 can be arranged according to different use requirements, that is, the air guide structure can be arranged on part of the air inlets 8, or the air guide structure can be arranged on part of the air outlets 8, or the air guide structure can be arranged on each air inlet 8 and each air outlet 8.

[0037] The diameter of the air guide port 2 of the air guide structure is equal to the diameter of the air port 8, so that the airflow entering the fan 7 is uniform, or the airflow flowing out of the fan 7 is uniform, which can reduce the pulsation and rotation of the airflow, and help to improve the efficiency of the fan 7.

[0038] In some embodiments, the air guide structure can be fixedly arranged on the fan 7 or detachably arranged on the fan 7. For example, the air guide structure can be fixed on the fan 7 by welding or riveting. In order to facilitate installation, disassembly, maintenance and the like, preferably, the air guide structure is detachably arranged on the fan 7. In this application, the air guide ring 1 of the air guide structure is detachably arranged on the fan 7 through a connecting assembly, which can include buckle connection, magnetic connection, screw connection or wedge connection.

[0039] Specifically, the connecting assembly includes a mounting plate arranged at the second end 4 of the air guide ring 1, the mounting plate is provided with a first connecting hole, the fan 7 is provided with a second connecting hole 9 at the position opposite to the first connecting hole, the first connecting hole is provided with a locking piece, and the locking piece is screwed with the second connecting hole 9. The first connecting hole and the second connecting hole 9 are aligned, and then the locking piece on the first connecting hole is screwed with the second connecting hole 9 to screw the mounting plate to the fan 7, so that the air guide structure is detachably arranged on the fan 7. The locking piece can be a screw or a stud.

[0040] Of course, the locking member can be fixedly arranged on the first connecting hole, for example, welded or riveted. The locking member can also be detachably matched with the first connecting hole, for example, clamped or screwed. Illustratively, an inner thread is formed on the inner wall of the first connecting hole, and the locking member is a screw matched with the first connecting hole in screwing. The first connecting hole and the second connecting hole 9 are sequentially screwed by the screw, so as to install the air guide ring 1 on the fan 7.

[0041] The connecting assembly is provided in multiple groups. The connection reliability of the air guide ring 1 and the fan 7 can be improved by the multiple groups of connecting assemblies. Alternatively, the multiple groups of connecting assemblies can be uniformly distributed in the circumferential direction of the air guide ring 1, so as to ensure the stability of the connection, reduce stress concentration, avoid structural damage caused by excessive local stress, and thus improve the service life of the device.

[0042] In summary, the flow separation of the airflow at the inlet of the air guide structure can be reduced by the flared ring 5, so that the airflow is more effectively introduced into the fan 7, the working efficiency of the fan 7 is improved, and thus the heat dissipation efficiency is improved. At the same time, the turbulent flow at the inlet of the fan 7 is reduced, so that the aerodynamic noise generated by the turbulent flow can be reduced from the source. In addition, the noise can be effectively absorbed by arranging the micro-holes 6 on the air guide ring 1.

[0043] Reference Figures 1-4 The embodiment of the present application also provides a medical device comprising the heat dissipation device.

[0044] The medical device includes a computer tomography device, a magnetic resonance imaging device, an X-ray device, and an ultrasonic device, etc.

[0045] It should be understood that the terms used herein are for the purpose of describing particular example embodiments only and are not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described, unless specifically indicated as such. It is also to be understood that additional or alternative steps can be employed.

[0046] Although the terms first, second, third, etc. can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example implementations.

[0047] The foregoing detailed description of the application has been presented for purposes of illustration and description. Various modifications and changes can be made to the embodiments in light of the above detailed description without departing from the spirit and intended scope of the application. It is to be understood that the application can be practiced without the following claims.

Claims

1. A wind guide structure, characterized by, The air guide ring (1) is provided with a plurality of micro-holes (6) penetrating the air guide ring (1) along the radial direction of the air guide ring (1).

2. The air guiding structure according to claim 1, wherein, The inner wall surface of the flared ring (5) comprises an arc surface.

3. The air guiding structure according to claim 1, wherein The cross-sectional shape of the micro-holes (6) comprises a circle.

4. The wind guide structure according to claim 1, wherein The plurality of micro-holes (6) are uniformly spaced on the air guide ring (1).

5. A heat dissipating device characterized by comprising: The air guide structure of any one of claims 1-4 is arranged on at least one air outlet (8) of the fan (7).

6. The heat dissipating device according to claim 5, wherein The diameter of the air guide opening (2) of the air guide structure is equal to the diameter of the air outlet (8).

7. The heat dissipating device of claim 5, wherein The air guide ring (1) of the air guide structure is detachably arranged on the fan (7) through a connecting assembly.

8. The heat dissipating device according to claim 7, wherein The connecting assembly comprises a mounting plate arranged on the second end portion (4) of the air guide ring (1), the mounting plate is provided with a first connecting hole, the fan (7) is provided with a second connecting hole (9) at the position corresponding to the first connecting hole, the first connecting hole is provided with a locking member, and the locking member is screwed with the second connecting hole (9).

9. The heat dissipating device of claim 8, wherein, The connecting assembly is provided with a plurality of.

10. A medical device, characterized by The heat dissipation device of any one of claims 5-9.

Images