阅读说明：本技术 一种风扇装置及具有该风扇装置的服务器 (Fan device and server with same ) 是由 张庆华 于 2020-12-11 设计创作，主要内容包括：本发明公开了一种风扇装置及具有该风扇装置的服务器,风扇装置包括：转轴,用于带动叶片组件绕转轴的轴线转动；叶片组件,可转动的连接于转轴；离心件和用于带动离心件靠近转轴的弹性件,当转轴转动时,离心件以转轴为中心做离心运动；离心件沿转轴的径向移动,带动叶片组件相对于转轴转动,以调整叶片组件的叶片倾角。本发明提供了一种根据转速自动改变叶片倾角的风扇装置,能够利用调整转速适应的改变叶片的倾斜角度,可以根据不同使用情况,预先设定二者的匹配关系,以设定风速与叶片倾斜的关系,改善风扇装置的调控策略,提升风扇装置的工作效率。(The invention discloses a fan device and a server with the same, wherein the fan device comprises: the rotating shaft is used for driving the blade assembly to rotate around the axis of the rotating shaft; the blade assembly is rotatably connected to the rotating shaft; the centrifugal part and the elastic part are used for driving the centrifugal part to be close to the rotating shaft, and when the rotating shaft rotates, the centrifugal part performs centrifugal motion by taking the rotating shaft as the center; the centrifugal piece moves along the radial direction of the rotating shaft to drive the blade assembly to rotate relative to the rotating shaft so as to adjust the blade inclination angle of the blade assembly. The invention provides a fan device capable of automatically changing the inclination angle of blades according to the rotating speed, which can change the inclination angle of the blades by adjusting the rotating speed, can preset the matching relationship of the blades and the rotating speed according to different use conditions so as to set the relationship between the wind speed and the inclination of the blades, improve the regulation and control strategy of the fan device and improve the working efficiency of the fan device.)

1. A fan apparatus, comprising:

the rotating shaft (10) is used for driving the blade assembly to rotate around the axis of the rotating shaft (10);

a blade assembly rotatably connected to the rotating shaft (10);

the centrifugal piece and the elastic piece (13) are used for driving the centrifugal piece to be close to the rotating shaft (10), and when the rotating shaft (10) rotates, the centrifugal piece performs centrifugal motion by taking the rotating shaft (10) as a center; the centrifugal piece moves along the radial direction of the rotating shaft (10) to drive the blade assembly to rotate relative to the rotating shaft (10) so as to adjust the blade inclination angle of the blade assembly.

2. The fan apparatus as claimed in claim 1, wherein the blade assembly comprises a blade connecting shaft (1) and a blade (2) connected to the blade connecting shaft (1), one end of the blade connecting shaft (1) being rotatably connected to the rotating shaft (10); the centrifugal piece is movably arranged on the blade connecting shaft (1).

3. The fan device according to claim 2, wherein the centrifugal member comprises a mass block (12) and a conversion member (11) connected with the mass block (12), the conversion member (11) is provided with a limiting portion, and the blade connecting shaft (1) is provided with a clamping portion which realizes limiting sliding with the limiting portion.

4. A fan apparatus according to claim 3, wherein the mass block (12) and/or the conversion member (11) is provided with a limiting structure for limiting the rotation of the mass block (12) and/or the conversion member (11) about the radial direction.

5. The fan apparatus according to claim 3, wherein the position-limiting portion includes a sliding groove, the engaging portion includes a protrusion inserted into the sliding groove, and the sliding groove is a linear sliding groove and forms an included angle with the radial direction.

6. The fan apparatus according to claim 3, wherein the limiting portion includes a sliding groove, the engaging portion includes a protrusion inserted into the sliding groove, the sliding groove is a curved sliding groove, and an included angle between the curved sliding groove and the radial direction changes along a length direction of the curved sliding groove.

7. A fan device according to claim 3, wherein the conversion member (11) is a pipe member connected to the mass block (12), and the pipe member is fitted over the blade connecting shaft (1).

8. The fan apparatus as claimed in any one of claims 3 to 7, wherein a blade pitch angle of the blades (2) decreases when the mass (12) approaches the rotation axis (10); when the mass block (12) is far away from the rotating shaft (10), the blade inclination angle of the blade (2) is increased;

or, when the mass (12) is close to the rotating shaft (10), the blade inclination angle of the blade (2) is increased; the blade pitch angle of the blades (2) decreases when the mass (12) is moved away from the rotational axis (10).

9. The fan apparatus as claimed in any one of claims 1 to 7, wherein the number of the rotating shafts (10) is at least one, and the blade inclination angles of a group of the blade assemblies on the same rotating shaft (10) are the same.

10. A server comprising a housing and a fan device disposed in the housing, wherein the fan device is the fan device according to any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of server heat dissipation, in particular to a fan device. In addition, the invention also relates to a server comprising the fan device.

Background

With the rapid development of the server industry, the performance requirements of the CPU are higher and higher, and the high power consumption accompanied by high performance puts higher and higher requirements on the overall heat dissipation design, particularly the efficiency and performance of the heat dissipation fan.

In the heat dissipation structure at the present stage, taking an air cooling server of a common design as an example, the blade angle and the inclination angle of the fan blades of the heat dissipation structure of the common design are fixed, and the heat dissipation effect generated by the fan structure is fixed, so that the air volume and the air pressure can be changed only by adjusting the rotating speed in the use process, and the adjusting and controlling means is single.

Under different rotating speeds in the use process, the blade angle and the inclination angle of the fan blades are fixed and cannot be changed, so that the efficiency of the fan cannot be debugged to reach the optimal state, and the optimal use effect in the design cannot be achieved frequently when the fan is used.

In summary, how to avoid the problem of low overall efficiency of the fan is a problem to be solved urgently by those skilled in the art.

Disclosure of Invention

In view of the above, an object of the present invention is to provide a fan device capable of adjusting an air discharge effect according to a wind speed, and significantly improving work efficiency.

Another object of the present invention is to provide a server including the above fan device, which can implement different types of heat dissipation manners for different situations, and has a better heat dissipation effect.

In order to achieve the above purpose, the invention provides the following technical scheme:

a fan apparatus, comprising:

the rotating shaft is used for driving the blade assembly to rotate around the axis of the rotating shaft;

the blade assembly is rotatably connected to the rotating shaft;

the centrifugal part and the elastic part are used for driving the centrifugal part to be close to the rotating shaft, and when the rotating shaft rotates, the centrifugal part performs centrifugal motion by taking the rotating shaft as a center; the centrifugal piece moves along the radial direction of the rotating shaft and drives the blade assembly to rotate relative to the rotating shaft so as to adjust the blade inclination angle of the blade assembly.

Preferably, the blade assembly comprises a blade connecting shaft and a blade connected with the blade connecting shaft, and one end of the blade connecting shaft is rotatably connected to the rotating shaft; the centrifugal piece is movably arranged on the blade connecting shaft.

Preferably, the centrifugal part comprises a mass block and a conversion part connected with the mass block, the conversion part is provided with a limiting part, and the blade connecting shaft is provided with a clamping part which realizes limiting sliding with the limiting part.

Preferably, the mass block and/or the conversion member are provided with a limiting structure for limiting the rotation of the mass block and/or the conversion member around the radial direction as an axis.

Preferably, spacing portion includes the spout, joint portion including insert in the arch of spout, the spout is the sharp spout, and with radial direction has the contained angle.

Preferably, spacing portion includes the spout, joint portion including insert in the arch of spout, the spout is the curve spout, and follows the length direction of curve spout, the curve spout with radial direction's contained angle has the change.

Preferably, the conversion part is a pipe connected to the mass block, and the pipe is sleeved on the blade connecting shaft.

Preferably, when the mass block is close to the rotating shaft, the blade inclination angle of the blade is reduced; when the mass block is far away from the rotating shaft, the blade inclination angle of the blade is increased;

or when the mass block is close to the rotating shaft, the blade inclination angle of the blade is increased; when the mass block is far away from the rotating shaft, the blade inclination angle of the blade is reduced.

Preferably, the number of the rotating shafts is at least one, and the blade inclination angles of one group of the blade assemblies on the same rotating shaft are the same.

A server comprises a shell and a fan device arranged on the shell, wherein the fan device is the fan device in any one of the above aspects.

The application provides a fan unit according to automatic blade inclination that changes of rotational speed can utilize the inclination that changes the blade of adjustment rotational speed adaptation, can be according to different in service behavior, preset the matching relation of the two to set for the relation of wind speed and blade inclination, improve fan unit's regulation and control strategy, promote fan unit's work efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic view of a fan apparatus according to the present invention;

FIG. 2 is a schematic diagram of an internal structure of the fan apparatus according to the present invention;

FIG. 3 is a schematic view of a main structure of a fan apparatus according to the present invention;

FIG. 4 is a schematic view of one embodiment of a centrifuge and an elastic member provided in accordance with the present invention;

FIG. 5 is a schematic view of another embodiment of the centrifuge and spring provided in accordance with the present invention;

FIG. 6 is a schematic view of a blade connecting shaft and a blade provided by the present invention;

FIG. 7 is a schematic structural diagram of a first embodiment of the present invention;

FIG. 8 is a diagram illustrating a relationship between a tilt angle and a rotation speed according to a first embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a second embodiment of the present invention;

FIG. 10 is a diagram illustrating a relationship between a tilt angle and a rotation speed according to a second embodiment of the present invention;

FIG. 11 is a schematic structural diagram of a third embodiment of the present invention;

fig. 12 is a schematic structural diagram of a fourth embodiment of the present invention.

In fig. 1-12, the reference numerals include:

10 is a rotating shaft, 1 is a blade connecting shaft, and 2 is a blade; 11 is a conversion element, 12 is a mass block, and 13 is an elastic element.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The core of the invention is to provide a fan device, which can realize the adjustment of the air exhaust effect according to the wind speed and can obviously improve the working efficiency.

The other core of the invention is to provide the server comprising the fan device, and the server can realize different types of heat dissipation modes according to different conditions and has a better heat dissipation effect.

Referring to fig. 1 to 12, the present application provides a fan device, which mainly includes: a rotating shaft 10, a blade assembly, a centrifugal member and an elastic member 13 for bringing the centrifugal member close to the rotating shaft 10.

Specifically, the rotating shaft 10 is disposed on a housing of the fan apparatus and connected with a driving device for power input to the blade assembly, such that rotation of the rotating shaft 10 rotates the blade assembly about an axis of the rotating shaft 10. The blade assembly is connected to the rotating shaft 10, specifically inserted into the rotating shaft along a radial direction of the rotating shaft 10 or a direction having an angle with the radial direction, and can rotate about the radial direction of the rotating shaft 10 or the direction having an angle with the radial direction.

The centrifugal member is connected to the rotating shaft 10 or the blade assembly through the elastic member 13, and when the rotating shaft 10 rotates, the centrifugal member performs centrifugal motion around the rotating shaft 10 to be away from the rotating shaft 10; when the rotating shaft 10 stops or slows down, the centrifugal piece is acted by the elastic piece 13 to be close to the rotating shaft 10; in the process, the centrifugal part has a movement in the radial direction of the rotating shaft 10, and the movement of the centrifugal part 10 in the radial direction can drive the blade assembly to rotate relative to the rotating shaft 10, specifically, to rotate with the radial direction as an axis or rotate in a direction having a certain included angle with the radial direction, and the rotation can adjust the blade inclination angle of the blade assembly.

When the rotational speed of pivot 10 is different in this embodiment, the centrifugal force of centrifugal part is also different, therefore the centrifugal part removes for pivot 10 during can to present the different distances with pivot 10, when the centrifugal part removed different positions, can drive the blade subassembly and carry out the rotational motion, the blade inclination of blade subassembly can be changed in the rotation of blade subassembly, makes fan unit's blade inclination along with the different automatic adjustment of rotational speed. Under different fan rotating speeds, the blades of the fan correspond to different blade angles or inclination angles, so that the overall efficiency of the fan is highest.

The application provides a fan unit according to automatic blade inclination that changes of rotational speed can utilize the inclination that changes the blade of adjustment rotational speed adaptation, can be according to different in service behavior, preset the matching relation of the two to set for the relation of wind speed and blade inclination, improve fan unit's regulation and control strategy, promote fan unit's work efficiency.

It should be noted that the axial direction in this application refers to the axial direction of the rotating shaft 10, and the radial direction in this application refers to the radial direction of the rotating shaft 10.

On the basis of the above embodiments, the blade assembly includes the blade connecting shaft 1 and the blade 2 connected with the blade connecting shaft 1, one end of the blade connecting shaft 1 is rotatably connected to the rotating shaft 10; the centrifugal piece is movably arranged on the blade connecting shaft 1.

Referring to fig. 3 to 6, the blade connecting shaft 1 is inserted into the rotating shaft 10 and is fixedly connected to the blade 2, and the blade connecting shaft 1 can rotate after being inserted into the rotating shaft 10 to drive the blade 2 to change the blade inclination angle.

The centrifugal member is provided on the blade connecting shaft 1 to be movable relative to the blade connecting shaft 1 to approach or separate from the rotary shaft 10.

The blade connecting shaft 1 is used for rotatably connecting the blade 2 to the rotating shaft 10 and for providing a centrifugal member, and alternatively, the blade connecting shaft 1 may be a round bar or other shaped structure.

In this embodiment, the blade connecting shaft 1 is used to provide a centrifugal member, and specifically, the centrifugal member can be sleeved on the blade connecting shaft 1, so that the moving direction of the centrifugal member is more stable.

On the basis of the above embodiment, the centrifugal part specifically includes the mass block 12 and the conversion part 11, the conversion part 11 is connected with the mass block 12, the conversion part 11 is provided with a limiting part, and the blade connecting shaft 1 is provided with a clamping part which realizes limiting sliding with the limiting part.

It should be noted that, the conversion element 11 is fixedly connected to the mass block 12, and the mass block 12 can drive the mass block 12 to move along the blade connecting shaft 1. Or the conversion element 11 and the mass block 12 are rotatably connected, that is, the mass block 12 is sleeved on the blade connecting shaft 1 and can rotate relative to the blade connecting shaft 1, the movement of the mass block 12 can drive the conversion element 11 to move, but the rotation of the mass block 12 does not affect the conversion element 11.

When the fan device rotates, when the mass block 12 moves along the length direction of the blade connecting shaft 1, the blade connecting shaft 1 can deflect, the blades 2 are driven to adjust the inclination angle, the mass block can move away from the central shaft of the fan due to the action of centrifugal force, and the centrifugal force is larger and the mass block moves towards the off-axis direction when the rotating speed of the fan is higher.

The spacing portion that the conversion part 11 set up can cooperate the relative movement in the restriction range with the joint portion that blade connecting axle 1 set up, therefore the removal of conversion part 11 can drive blade connecting axle 1 and rotate, and conversion part 11 also restricts the rotation range of blade connecting axle 1 simultaneously.

The conventional arrangement of the converter 11 and the blade connecting shaft 1 includes a track on one of the converter and the blade connecting shaft 1, and a structure matched with the track is arranged on the other of the converter and the blade connecting shaft 1 is driven to rotate by taking the radial direction as an axis through the radial movement of the converter 11.

Alternatively, the two may be connected by an elastic member or a flexible member, but to some extent, the rotation efficiency of the blade may be delayed, and the influence of the delay may be reduced by adjusting the elastic coefficient of the elastic member or the length of the flexible member.

Because the rotation that centrifugal part need drive the blade subassembly through radial movement, consequently, the centrifugal part can not use radially to rotate as the axle, otherwise the blade subassembly will not driven and rotate. Therefore, the mass 12 and/or the conversion member 11 are provided with a limit structure for limiting the rotation of the mass 12 and/or the conversion member 11 about the radial direction.

Optionally, a rotation stop portion may be further disposed on the blade connecting shaft 1 to limit or cooperate with the limiting structure to limit the rotation of the centrifugal member.

In this embodiment, through setting up limit structure or rotation stopping portion etc. avoid centrifugal part to rotate to ensure that the radial movement of centrifugal part can be used for driving the rotation of blade subassembly completely.

Due to the fact that the number of the blades 2, the structure of the fan, the flow field in the box body and the like are different, the optimal matching relation between the rotating speed of the fan and the angle/inclination angle of the blades is also different, specific adjusting strategies can be in various types, and the adjusting method can be achieved through different motion conversion structures. On the basis of the above embodiments, please refer to fig. 4, 7 and 9, the limiting portion includes a sliding slot, the locking portion includes a protrusion inserted into the sliding slot, and the sliding slot is a linear sliding slot and forms an included angle with the radial direction. Fig. 7 and 9 are schematic diagrams of a first specific embodiment and a second specific embodiment, respectively, and are two different linear chutes, in which the blade inclination angles of the two different linear chutes are different in the process of increasing the rotation speed, and it is assumed that in the process of increasing the rotation speed, as shown in fig. 7, the centrifugal member moves to the right side in fig. 7, so that the protrusion rotates downward, and the blade inclination angle is increased; in fig. 9, during the increase of the rotational speed, the centrifugal part will move to the right in fig. 9, so that the protrusion will rotate upwards, which will bring about a decrease of the pitch angle of the blades. The above situation can also be exchanged. Although both the two chutes are straight chutes, the setting angles of the two chutes are different, and when the rotating speed is increased, opposite effects occur.

The sliding groove can be a sliding rail or other structures used for protruding sliding arrangement. The concrete structure of spout is the straight line structure, and the corresponding inclination and the relation of rotational speed can refer to fig. 8. Under the arrangement of the sliding groove with the linear structure, the inclination angle and the rotating speed are in a linear relation, and the change rate is unchanged.

Optionally, spacing portion includes the spout, and joint portion is including inserting in the arch of spout, and the spout is the curve spout, and along the length direction of curve spout, and the contained angle of curve spout and radial direction has the change. Referring to fig. 5, 11 and 12, the curved chutes function to change the efficiency of the blade pitch angle change caused by the fan rotation speed change to a variable state, thereby being capable of adapting to more various and more complicated use scenarios. It should be noted that the rates of change of the blade pitch angles in fig. 11 and 12 are changed. In addition, when the central angle corresponding to the sliding groove is larger than 90 degrees, the inclination angle of the blade may be increased firstly, then decreased or decreased firstly and then increased.

On the basis of any of the above embodiments, the converter 11 is a pipe connected to the mass block 12, and the pipe is sleeved on the blade connecting shaft 1. The mass block 12 and the converter 11 can be sleeved on the vane connecting shaft 1, and the converter 11 is provided with the sliding groove, and the sliding groove is in sliding connection with the protrusion of the vane connecting shaft 1, so that the radial movement of the converter 11 drives the vane connecting shaft 1 to rotate around the radial direction or rotate around a shaft extending in the radial direction.

Referring to fig. 7, 8, 9 and 10, fig. 7 and 9 are schematic diagrams of a first embodiment and a second embodiment, respectively, fig. 8 is a graph of a relationship between an inclination angle and a rotation speed of fig. 7, and fig. 10 is a graph of a relationship between an inclination angle and a rotation speed of fig. 9.

The relationship of the rotating speed and the blade inclination angle of the fan rotating shaft 10 can be adjusted according to actual conditions. When the mass block 12 approaches the rotating shaft 10, the blade inclination angle of the blade 2 is reduced; when the mass 12 moves away from the rotation axis 10, the blade pitch angle of the blade 2 increases.

Alternatively, when the mass 12 approaches the rotation shaft 10, the blade inclination angle of the blade 2 increases; the blade pitch angle of the blades 2 decreases as the mass 12 moves away from the axis of rotation 10.

Optionally, the number of the rotating shafts 10 is at least one, and the blade inclination angles of one group of blade assemblies on the same rotating shaft 10 are the same. Specifically, a circle of blade assemblies are arranged at the same axial position on one rotating shaft 10, and the blade connecting shafts 1 of the blade assemblies are respectively connected to a circle of the same axial position to form a plurality of blade groups in the circumferential direction.

The blade sets are respectively arranged at different circumferential positions of one rotating shaft 10, and the blade inclination angles of the blade sets at different positions can be the same or different, and can be adjusted according to actual needs.

In addition to the main structure of the fan device provided in each of the above embodiments, the present invention also provides a server including the fan device disclosed in the above embodiments, wherein the fan device is disposed on a housing of the server, so as to facilitate heat dissipation inside the housing. For the structure of other parts of the server, please refer to the prior art, which is not described herein again.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The fan device and the server provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.