WO2024060878A1

WO2024060878A1 - Fan, and communication device

Info

Publication number: WO2024060878A1
Application number: PCT/CN2023/112952
Authority: WO
Inventors: 智博文
Original assignee: 中兴通讯股份有限公司
Priority date: 2022-09-22
Filing date: 2023-08-14
Publication date: 2024-03-28
Also published as: CN218644531U

Abstract

The embodiments of the present disclosure relate to the technical field of communication heat dissipation. Provided are a fan and a communication device. The fan comprises a fan mechanism and a housing, wherein the fan mechanism comprises fan blades; the housing is provided with an accommodation cavity, an airflow inlet, an airflow outlet and a plurality of flow guide slots, the airflow inlet and the airflow outlet being respectively in communication with the accommodation cavity; all the flow guide slots are formed at one end of the airflow inlet, each flow guide slot extends from the airflow inlet toward the airflow outlet along an inner wall surface of the accommodation cavity, and there is a gap between the two adjacent flow guide slots; and the fan mechanism is accommodated in the accommodation cavity.

Description

Wind turbines and communication equipment

Cross-references to related applications

This disclosure is based on Chinese patent application 202222518495.X, filed on September 22, 2022, with the invention name “Wind turbine and communication equipment”, and claims the priority of the patent application, and all the contents disclosed therein are incorporated into this disclosure by reference.

Technical field

The present disclosure relates to the field of communication heat dissipation technology, and in particular to a fan and communication equipment.

Background technique

With the continuous development of integrated circuit technology, the size of communication equipment is becoming smaller and smaller, and the systems in communication equipment are becoming more and more complex. The density of components causes communication equipment to have high thermal density. In order for communication equipment to work effectively, it needs to be For effective heat dissipation, multiple fans need to be installed in the communication equipment to achieve effective heat dissipation. However, when multiple cooling fans of existing communication equipment work at the same time, the airflow directly enters the cooling fan and directly acts on the fan blades. leading to greater noise.

public content

The main purpose of the embodiments of the present disclosure is to provide a fan and communication equipment, aiming to solve the problem of high cooling fan noise in existing communication equipment.

A fan, comprising:

A fan mechanism, the fan mechanism includes fan blades;

The housing is provided with an accommodation cavity, an airflow inlet, an airflow outlet and a plurality of guide grooves. The airflow inlet and the airflow outlet are respectively connected with the accommodation cavity; all the guide grooves are provided with At one end of the air flow inlet, and each of the guide grooves extends from the air flow inlet along the inner wall of the accommodation cavity in the direction of the air flow outlet, and one of the two adjacent guide grooves extends There is a gap between them; the fan mechanism is accommodated in the accommodation cavity.

Based on the above-mentioned wind turbine, embodiments of the present disclosure also provide a communication device, and the technical solution adopted is as follows:

A communications device including:

The fan described in any of the above.

Description of the drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

Figure 1 is a schematic three-dimensional structural diagram of a fan provided by an embodiment of the present disclosure;

Figure 2 is a schematic exploded structural diagram of a fan provided by an embodiment of the present disclosure;

Figure 3 is a schematic cross-sectional view of a fan provided by an embodiment of the present disclosure;

Figure 4 is a schematic three-dimensional structural diagram of a housing provided by an embodiment of the present disclosure from one perspective;

Figure 5 is a partial enlarged schematic diagram of M in Figure 4;

Figure 6 is a schematic three-dimensional structural diagram of the housing provided by an embodiment of the present disclosure from another perspective;

Figure 7 is a schematic three-dimensional structural diagram of the fan mechanism provided by an embodiment of the present disclosure from one perspective;

Figure 8 is a schematic three-dimensional structural diagram of the fan mechanism provided by an embodiment of the present disclosure from another perspective;

Figure 9 is a simplified structural schematic diagram of a communication device provided by an embodiment of the present disclosure.

Explanation of reference numbers:
10. Fan;
11. Fan mechanism; 111. Fan blades; 1110. Dimples; 1111. First fan surface; 11110. First area; 1112. Second fan surface; 11101. First side edge; 11102. Second side edge;
12. Shell; 120. Accommodation cavity; 1201. Air flow inlet; 1202. Air flow outlet; 1203. Diversion groove; 12031.
First guide part; 12032, second guide part; 121, shell main body; 1211, first end face; 1212, second end face; 122, annular boss;
13. Fixings; 131. Air flow grate;
20. Communication equipment; 21. Equipment body.

Detailed ways

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this disclosure.

The flowcharts shown in the accompanying drawings are only examples and do not necessarily include all the contents and operations/steps, nor must they be executed in the order described. For example, some operations/steps may also be decomposed, combined or partially merged, so the actual execution order may change according to actual conditions.

It should be understood that the terms used in this disclosure are only for the purpose of describing specific embodiments and are not intended to limit the disclosure. As used in this disclosure and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

The fan 10 and its components provided by the embodiment of the present disclosure are shown in Figures 1 to 8.

Please refer to Figure 1, Figure 2 and Figure 3. The fan 10 provided in this embodiment includes a fan mechanism 11 and a casing 12; wherein, the fan mechanism 11 includes fan blades 111; the casing 12 is provided with an accommodation cavity 120, an airflow inlet 1201, The airflow outlet 1202 and multiple guide grooves 1203, the airflow inlet 1201 and the airflow outlet 1202 are respectively connected with the accommodation cavity 120; all the guide grooves 1203 are located at one end of the airflow inlet 1201, and each guide groove 1203 is connected to the airflow inlet 1201. The inlet 1201 extends along the inner wall of the accommodating cavity 120 in the direction of the air outlet 1202, and there is a gap between two adjacent guide grooves 1203; the fan mechanism 11 is accommodated in the accommodating cavity 120. The fan 10 provided in this embodiment is provided with a guide groove 1203 at one end of the air inlet 1201, so it can guide the airflow entering the fan 10, and when the airflow passes through the guide groove 1203, air flow disturbance will occur. The airflow close to the guide groove 1203 forms a turbulent boundary layer, while the airflow farther away from the guide groove 1203 forms a laminar flow layer, which can effectively reduce the resistance encountered by the airflow when entering the fan 10, thereby making it more efficient. It is beneficial for more airflow to enter the fan 10, and during the process of the airflow entering the fan 10, it can also effectively reduce the flow velocity gradient caused by uneven airflow speed, so that the airflow enters the fan 10 through the casing 12 at a more uniform flow speed, effectively reducing the The noise caused by the airflow during the rotation of the fan 10 is eliminated.

Compared with the general technology, the fan provided in the embodiment of the present disclosure includes a housing and a fan mechanism, wherein the housing is provided with a The fan mechanism is accommodated in the accommodating cavity, and the airflow inlet and the airflow outlet are provided with a plurality of guide grooves at one end of the airflow inlet, and the guide grooves all extend from the airflow inlet along the inner wall of the accommodating cavity toward the direction where the airflow outlet is located. The fan mechanism is accommodated in the accommodating cavity, and the airflow entering the accommodating cavity can be guided by providing a plurality of guide grooves, so that the airflow close to the side of the guide groove becomes a turbulent layer, so that the airflow has a turbulent layer and a laminar layer, which is conducive to reducing the resistance of the airflow flowing in the fan, increasing the airflow velocity, so that more airflow enters the fan at a more uniform velocity, and effectively reducing the noise of the airflow during the rotation of the fan. The fan is installed in the communication equipment, and the communication equipment has less noise when working, which is conducive to reducing the noise impact of the communication equipment working.

Please refer to Figures 3, 4, 5 and 6. In some embodiments, the housing 12 includes a housing body 121 and an annular boss 122. The annular boss 122 is connected to the inner wall surface of the housing body 121 to form an airflow inlet 1201. , an airflow inlet 1201 is formed by an annular boss 122, the guide groove 1203 is located on the annular boss 122 facing away from the main body 121 of the shell, and the fan mechanism 11 is located between the annular boss 122 of the accommodation cavity 120 and the airflow outlet 1202. , that is, the fan mechanism 11 is disposed in the accommodating cavity 120 , and is disposed at a portion of the accommodating cavity 120 between the annular boss 122 and the airflow outlet 1202 . With such a structural design, when the fan mechanism 11 rotates, a negative pressure is formed in the accommodation cavity 120 , so that the airflow enters the accommodation cavity 120 through the airflow inlet 1201 formed by the annular boss 122 and is discharged through the airflow outlet 1202 .

Please refer to Figure 3, Figure 4, Figure 5 and Figure 6. In some embodiments, the housing 12 has a first end surface 1211 and a second end surface 1212. The first end surface 1211 and the second end surface 1212 are arranged oppositely, wherein the airflow inlet 1201 is provided on the first end face 1211, and the air flow outlet 1202 is provided on the second end face 1212, so that the air flow can enter the accommodation cavity 120 from the outside of the fan 10 through the air flow inlet 1201, and then flow out from the air flow outlet 1202 driven by the rotation of the fan blade 111. . In some embodiments, each guide groove 1203 includes a first guide part 12031 and a second guide part 12032. The first guide part 12031 extends in an arc-shaped trajectory and is connected to the second guide part 12032. The air guide portion 12032 is provided on the inner wall surface of the accommodation cavity 120 and the extension trajectory of the second air guide portion 12032 is parallel to the rotation center axis of the fan blade 111 . The first guide part 12031 serves as the front groove structure where external airflow enters the fan 10. It is designed to extend in an arc-shaped trajectory, so that the airflow has a certain direction of rotation before entering the fan 10, which improves the airflow inlet 1201 of the fan 10. The air flow direction is beneficial to making the noise generated by the airflow entering the fan 10 smaller, which is beneficial to improving the sound quality of the fan 10 . In some embodiments, the portion where the first end surface 1211 and the inner wall surface of the accommodation cavity 120 are connected to each other forms a chamfered slope, and the first guide portion 12031 extends from the first end surface 1211 to the chamfered slope and connects with the second guide portion 12032 connection, so that when the airflow on the first end surface 1211 enters the airflow inlet 1201, the airflow layer close to the housing 12 is introduced into the airflow inlet 1201 by the first guide part 12031, so that the airflow layer close to the first guide part 12031 becomes into a turbulent layer. In some embodiments, the central axis of rotation of the fan blade 111 and the central axis of each second guide portion 12032 form a plane, and the first guide portion 12031 connected to the second guide portion 12032 is at a distance from the plane. The gradually decreasing trend extends to the second air guide part 12032 and is connected with the second air guide part 12032, and the end connecting the first air guide part 12031 and the second air guide part 12032 is located at the front end of the rotation of the fan blade 111. One end of the air guide portion 12031 away from the second air guide portion 12032 is located at the end of the rotation of the fan blade 111 . Such a structural design is conducive to the airflow flowing into the airflow inlet 1201 entering the fan 10 in a pre-rotating manner, thereby reducing noise. It should be noted that in the embodiment of the present disclosure, the rotating front end of the fan blade 111 and the rotating end of the fan blade 111 respectively refer to the end of the fan blade 111 that faces the front of the rotation during the rotation of the fan blade 111. The end facing away from the front of the rotation is called the end.

Please refer to Figure 1, Figure 3, and Figure 5. In some embodiments, the width of each guide groove 1203 is between 1.0mm and 5mm, and the depth is between 0.2mm and 1.0mm. The width of the guide groove 1203 and The depth is limited in size, which is conducive to the formation of a turbulent layer. In some embodiments, the distance between two adjacent guide grooves 1203 is between 1.0 mm and 10.0 mm, which is beneficial to the airflow entering the fan 10 forming a turbulent layer and stratosphere, and reducing airflow noise.

Please refer to Figure 3. In some embodiments, the maximum distance (D) from the fan blade 111 to the rotation center axis of the fan blade 111 and the minimum distance (d) from the groove bottom wall of the guide groove 1203 to the rotation center axis of the fan blade 111. ) is between 0 and 10mm, so that after the airflow entering through the airflow inlet 1201 forms a turbulent layer, the airflow in the turbulent layer completely flows to the fan blade 111 and passes through the airflow under the negative pressure generated by the rotation of the fan blade 111 Exit 1202 flows out.

Please refer to Figures 7, 8 and 3. In some embodiments, the fan blade 111 has a first fan surface 1111 and a second fan surface 1112. The first fan surface 1111 faces the airflow inlet 1201, and the second fan surface 1112 faces away from the airflow inlet 1201. (That is, toward the airflow outlet 1202), the fan blade 111 is provided with a plurality of recesses 1110. The recesses 1110 are recessed from the first fan surface 1111 to the second fan surface 1112 or from the second fan surface 1112 to the first fan surface 1111. The recesses 1110 are The design can destroy the laminar flow boundary layer flowing to the fan blade 111, causing the airflow to form a turbulent boundary layer in advance during the transition process, so as to effectively reduce the shape resistance of the fan blade 111 during the rotation process, so that the fan 10 can inhale more air , not only improves the operating efficiency of the fan 10, but also reduces the operating noise. In some embodiments, the first sector surface 1111 and the second sector surface 1112 are both distributed with pits 1110 . In some embodiments, the fan blade 111 has a first side edge, which is the front end of the fan blade 111 when rotating, and the pit 1110 is disposed close to the first side edge. In some embodiments, the fan blade 111 also has a second side edge. The second side edge is the end of the fan blade 111 when it rotates. That is, the first side edge and the second side edge are two opposite edges. When the pit 1110 When set on the first sector 1111, the first sector 1111 has a first area 11110, and the first area 11110 extends from the first side edge to the second side edge and has a distance from the second side edge. The first area 11110 occupies the first 30% to 40% of the area of the sector 1111, the pits 1110 are provided in the first area 11110. Along the direction from the first side edge to the second side edge, a plurality of pits 1110 are arranged in at least one row and multiple columns, two adjacent ones There is a spacing between the pits 1110, which can effectively reduce the resistance of the air flow and improve the operating efficiency of the fan 10. Of course, multiple pits 1110 can also be arranged in multiple rows and columns, and all the pits 1110 are arranged in the first area 11110. , which can ensure the structural strength and structural reliability of the fan blade 111. In some embodiments, the second sector 1112 also has a first area 11110, and the first area 11110 of the second sector 1112 is the same as the first area 11110 of the first sector 1111, and the first area 11110 of the second sector 1112 also has A plurality of pits 1110 are provided. In some embodiments, the structure of the pit 1110 is in the shape of a hemisphere, a cube, or a pyramid. When the pit 1110 is longitudinally sectioned, the cross-sectional surface is in an arc shape, a square shape, or a conical shape.

Please refer to FIG. 2 . In some embodiments, the fan 10 further includes a fixing member 13 . The fixing member 13 is provided on the second end surface 1212 and is connected to the housing body 121 for packaging the fan mechanism 11 in the accommodating cavity 120 . In some embodiments, the fixing member 13 is provided with an exhaust port (not labeled in the figure) connected to the air flow outlet 1202 so that the air flow in the accommodation cavity 120 can be discharged. In some embodiments, the fixing member 13 includes an airflow grate 131 , and the airflow grate 131 is installed at the exhaust port, so that the airflow from the airflow outlet 1202 can be discharged out of the fan 10 through the airflow grate 131 .

Please refer to Figure 9 and Figures 1 to 8. Based on the above-mentioned fan 10, an embodiment of the present disclosure also provides a communication device 20. The communication device 20 includes the fan 10 of any of the above embodiments. The fan 10 serves as a heat sink for the communication device 20. components, which can effectively reduce the noise of the communication device 20 during the heat dissipation process. In some embodiments, the communication device 20 includes a device body 21 , and the fan 10 is installed in the device body 21 to dissipate heat from components of the device body 21 that need to dissipate heat.

The above serial numbers of the embodiments of the present disclosure are only for description and do not represent the advantages and disadvantages of the embodiments. The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person familiar with the technical field can easily think of various equivalent methods within the technical scope disclosed in the present disclosure. Modifications or substitutions, these modifications or substitutions should be covered by the protection scope of this disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

A fan includes:

A fan mechanism, the fan mechanism includes fan blades;

A shell, wherein the shell is provided with a accommodating cavity, an airflow inlet, an airflow outlet and a plurality of guide grooves, wherein the airflow inlet and the airflow outlet are respectively connected to the accommodating cavity; all the guide grooves are arranged at one end of the airflow inlet, and each of the guide grooves extends from the airflow inlet along the inner wall of the accommodating cavity toward the direction where the airflow outlet is located, and there is a gap between two adjacent guide grooves; the fan mechanism is accommodated in the accommodating cavity.
The fan according to claim 1, wherein each of the guide grooves includes a first guide part and a second guide part, and the first guide part extends in an arc-shaped trajectory and is connected with the second guide part. The flow parts are connected, the second flow guide part is provided on the inner wall surface of the accommodation cavity, and the extension trajectory of the second flow guide part is parallel to the rotation center axis of the fan blade.
The fan according to claim 2, wherein the housing has a first end surface and a second end surface, the first end surface and the second end surface are arranged oppositely, and the airflow inlet is provided on the first end surface, The airflow outlet is provided on the second end face; the portion where the first end face and the wall of the accommodating cavity are connected to each other forms a chamfered slope, and the first flow guide portion faces the inverted surface from the first end face. The angular slope extends and is connected with the second flow guide part.
The fan according to claim 2, wherein the distance between the first air guide portion and the plane formed by the central axis of rotation of the fan blade and the central axis of the second air guide portion gradually decreases. Extends toward the second air guide part and is connected to the second air guide part, and one end of the first air guide part connected to the second air guide part is located at the front end of the rotation of the fan blade, the An end of the first air guide part away from the second air guide part is located at the end of rotation of the fan blade.
The fan according to claim 2, wherein the width of each guide groove is between 1.0mm and 5mm, and the depth is between 0.2mm and 1.0mm;

And/or, the distance between two adjacent guide grooves is between 1.0 mm and 10.0 mm.
The fan according to any one of claims 1 to 5, wherein the housing includes a housing body and an annular boss, and the annular boss is connected to an inner wall surface of the housing body to form the airflow inlet; The air guide groove is arranged on the annular boss opposite to the main body of the shell, and the fan mechanism is arranged between the annular boss and the air flow outlet.
The fan according to claim 6, wherein the maximum distance from the fan blade to the rotation center axis of the fan blade is equal to the minimum distance from the groove bottom wall of the guide groove to the rotation center axis of the fan blade. The difference is between 0 and 10mm.
The fan according to any one of claims 1 to 5, wherein the fan blade has a first fan surface and a second fan surface, the first fan surface faces the airflow inlet, and the second fan surface faces away from the airflow. Inlet, the fan blade is provided with a plurality of pits, the pits are recessed from the first fan surface to the second fan surface;

And/or, the pit is recessed from the second sector to the first sector.
The fan according to claim 8, wherein the fan blade has a first side edge, the first side edge is the front end of the fan blade when rotating, and the recess is provided close to the first side edge.
The fan according to claim 9, wherein the fan blade further has a second side edge, and the second side edge is the end of the fan blade when rotating, and the first fan surface and/or the second The sector has a first area, and the first area extends from the first side edge to the second side edge and has a distance from the second side edge, and the first area occupies the first sector or The pits are provided in the first area of 30% to 40% of the second sector area.
A communications device including:

The fan according to any one of claims 1 to 10.