CN217814049U - Impeller structure and fan comprising same - Google Patents

Abstract

The present application relates to the technical field of fans, in particular to an impeller structure and a fan including the structure, which includes a fan frame and fan blades, a central shaft is fixedly connected to the fan frame, and a fixed shaft is fixedly connected to the end of the central shaft away from the fan frame for presenting The fixed part marked, the fan blade is rotatably connected with the central shaft, and the driving part for driving the fan blade to rotate is also arranged in the fan frame. In the present application, during the operation of the fan, the logo is not easy to rotate with the rotation of the fan blades, and the logo can appear during the operation of the fan.

Description

A kind of impeller structure and fan including the structure

technical field

The present application relates to the technical field of fans, in particular to an impeller structure and a fan including the structure.

Background technique

As the function and operation speed of the electronic or mechanical system increase, heat will be generated inside the electronic or mechanical system. If the generated heat cannot be dissipated in time, it will easily affect the working performance of the equipment, and may seriously cause damage to the equipment. Therefore, it is necessary to install a fan to increase the internal air circulation speed by changing the direction of air circulation, so as to achieve the purpose of heat dissipation inside the device.

In the related art, the central shaft in the fan is generally fixedly connected with the fan blades, and since the fan blades are driven by the drive assembly, the central shaft runs together with the fan blades. The logo appears on the top of the fan blade, and the logo will rotate with the fan blade during the rotation of the fan blade.

With regard to the related technologies mentioned above, the inventor believes that there are signs that cannot be displayed during the operation of the fan.

Utility model content

In order to present a mark during the operation of the fan, the present application provides an impeller structure and a fan including the structure.

In the first aspect, the present application provides an impeller structure, adopting the following technical solution:

An impeller structure, including a fan frame and fan blades, the fan frame is fixedly connected with a central shaft, the end of the central shaft far away from the fan frame is fixedly connected with a fixing piece for displaying a logo, and the fan blade rotates with the central shaft The fan frame is also provided with a driving member for driving the fan blades to rotate.

By adopting the above-mentioned technical scheme, when the driving part in the fan frame drives the fan blade to rotate, the fan blade is connected to the central shaft in rotation, and the central shaft and the fan frame are fixedly connected, and the central shaft is not easy to rotate with the rotation of the fan blade. The fixing part showing the logo is fixedly connected with the fan frame through the central axis, so the logo is not easy to rotate with the rotation of the fan blade, and the logo can be displayed during the operation of the fan.

Optionally, a bearing is provided outside the central shaft, and the fan blade is rotatably connected to the central shaft through the bearing.

By adopting the above technical scheme, the bearing is sleeved outside the central shaft, which can limit the rotation of the fan blades in the circumferential direction of the central shaft, reduce the friction of the fan blades on the central shaft during the rotation process, and reduce the rotation of the fan blades. Noise generated by the process and make the rotation more stable.

Optionally, the fixing part includes a support plate and a nameplate for displaying the logo, the support plate is fixedly sleeved on the central axis, and the support plate is located at the end of the central axis away from the fan frame, the nameplate It is detachably connected to the side of the support plate away from the fan frame.

By adopting the above technical solution, the support plate is fixedly connected to the end of the central axis away from the fan frame, and is located between the nameplate and the bearing. The support plate can be used to lock the bearing so that the bearing is not easily separated from the central axis when rotating. The nameplate is located on the side of the support plate away from the fan frame, and the nameplate and the support plate are detachably connected to facilitate replacement of the nameplate.

Optionally, a circlip is sheathed on the central axis, and the circlip is located on a side of the support plate away from the fan frame.

By adopting the above technical solution, the circlip is sleeved on the central axis, and the circlip is located on the side of the support plate far away from the fan frame, which can further lock the support plate on the central axis, so that the support plate is not easily affected by the vibration generated when the bearing rotates. The influence of centrifugal force can stabilize the position of the support plate, thereby stabilizing the impeller structure.

Optionally, a spacer is sheathed on the central shaft, the spacer is fixedly connected with the central shaft, and the spacer is located between the support plate and the bearing.

By adopting the above technical solution, the gasket is located between the support plate and the bearing and is fixedly sleeved on the central shaft, which plays the role of separating the support plate and the bearing. The rotation of the bearing generates a centrifugal force away from the fan frame, and the gasket can counteract this centrifugal force. It acts as a buffer, so that the bearing is not easy to affect the support plate.

Optionally, a spring is provided on the fan frame, and the end of the spring away from the fan frame abuts against the end of the bearing away from the fixing member.

By adopting the above technical solution, one end of the spring is fixedly connected to the fan frame, and the other end of the spring away from the fan frame is in contact with the bearing. Since the side of the bearing away from the central shaft is connected to the fan blade, the spring can limit the position of the bearing and the fan runs During the process, it is not easy to make the fan blade too close to the fan frame, which can reduce the friction between the fan blade and the fan frame.

Optionally, a positioning groove is provided on the side of the nameplate close to the support plate, and a protrusion that cooperates with the positioning groove is provided on the support plate, and the protrusion is located in the positioning groove and The support plate is clamped and fitted, and the nameplate is adhered to the support plate.

By adopting the above technical solution, the protrusion on the side of the support plate away from the fan frame cooperates with the positioning groove provided on the name plate, so that the name plate can be quickly positioned on the support plate. The nameplate is bonded to the support plate to realize the detachable connection of the nameplate. During the rotation of the fan blade, the nameplate is not easy to slip with the support plate, so that the position of the nameplate is stable.

In the second aspect, the present application provides a fan, which adopts the following technical solution:

A fan, comprising an impeller structure and a casing, the impeller structure is arranged in the casing, an air inlet frame is arranged on the casing in the direction of air flow, and the air inlet frame is arranged around the impeller structure to increase An arc-shaped wind-guiding ring with a large air-guiding volume, the arc-shaped wind-guiding ring has a transitional arc surface and the opening of the arc surface faces the direction of the axis where the central axis is located.

By adopting the above technical solution, the rotation of the impeller structure makes the air outside the casing enter from the surface where the air intake frame is located, and the rotating fan blades turn the air out along the radial direction of the impeller to the side of the casing away from the air intake frame. The frame near the impeller structure is equipped with an arc-shaped arc-shaped air guide ring. When the fan blade rotates, the inhaled air volume is enlarged, which can increase the air guide volume of the impeller structure and improve the air guide efficiency of the fan.

Optionally, the fan blades are provided with a plurality of guide ribs protruding in a direction close to the air intake frame.

By adopting the above-mentioned technical scheme, the raised guide rib guides the air sucked in from the side of the air intake frame, and the air hitting the guide rib smoothly changes the flow direction along the side of the guide rib, so that The air is blown out from the side of the fan away from the air intake frame, which can reduce the loss of wind energy and make the wind direction more stable.

In summary, the present application includes at least one of the following beneficial technical effects:

1. Since the central shaft and the fan frame are fixedly connected, the central shaft is not easy to rotate with the rotation of the fan blades, and the fixing part used to display the logo is fixedly connected to the fan frame through the central shaft, so the logo is not easy to rotate with the rotation of the fan blades Rotate, and the logo can be displayed during the operation of the fan;

2. The position of the support plate and the bearing can be stabilized by setting the circlip, gasket and spring on the central shaft, reducing the friction generated by the fan blade during rotation, so that the impeller structure can rotate stably in the fan frame;

3. By setting the ring-shaped guide ring and the diversion rib, the air guide volume can be increased, so that the air entering the impeller structure can flow stably and smoothly, and the wind direction is more stable.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of a fan according to an embodiment of the present application.

Fig. 2 is a cross-sectional view of a partial structure of a fan according to an embodiment of the present application.

Fig. 3 is an enlarged view of part A in Fig. 2 .

Explanation of reference signs: 1. fan frame; 11. drive member; 2. fan blade; 21. diversion rib; 3. central shaft; 31. bearing; 32. circlip; 33. gasket; 34. spring; 4. Fixing piece; 41. Support plate; 411. Raised part; 42. Name plate; 421. Positioning groove; 5. Cabinet; 51. Air inlet frame;

Detailed ways

The present application will be described in further detail below in conjunction with accompanying drawings 1-3.

The embodiment of the application discloses a fan.

Referring to FIG. 1 and FIG. 2 , the fan includes an impeller structure and a casing 5 , and the impeller structure is fixed in the casing 5 .

In order to increase the air guide volume of the fan and improve the efficiency of the air guide volume of the fan, the air inlet frame 51 is connected with the screw in the direction of the airflow on the casing 5, and the arc air guide ring 511 is integrally formed on the air inlet frame 51. The wind ring 511 has a transition arc shape and the opening of the arc faces toward the center of the impeller structure.

The impeller structure is fixed in the casing 5, and the impeller structure includes rotating fan blades 2. During the operation of the fan, the air outside the casing 5 enters from the surface where the air intake frame 51 is located, and the rotating fan blades 2 push the air along the direction of the impeller structure. Rotate out in the radial direction to the side of the casing 5 away from the air inlet frame 51. By setting the arc-shaped air guiding ring 511, the air volume sucked in can be enlarged when the fan blade 2 rotates, thereby increasing the air guiding volume of the fan.

In order to make the air flow more stable when the fan rotates and reduce the loss of wind energy, several guide ribs 21 are integrally formed on the fan blade 2. In this embodiment, each fan blade 2 is provided with three guide ribs. 21 and the size is formulated according to the actual size of the fan blade 2.

The protruding direction of the guide rib 21 is along the direction close to the air intake frame 51, and the raised guide rib 21 guides the air sucked from the air intake frame 51, and the air that hits the guide rib 21 The flow direction is smoothly changed along the side of the guide rib 21 , so that the air is blown out from the side of the fan away from the air intake frame 51 .

Referring to Figure 2 and Figure 3, the impeller structure includes a fan frame 1 and fan blades 2, the fan frame 1 is screwed into the casing 5, and a driving member 11 is installed in the fan frame 1 to drive the fan blade 2 to rotate, and the fan frame 1 The central shaft 3 is bonded, and in this embodiment, the driving member 11 is an outer rotor motor. The stator of the outer rotor motor is interference-fitted with the central shaft 3 so as to be fixed on the central shaft 3 , and the rotor of the outer rotor motor is welded to the fan blade 2 to realize the rotation of the fan blade 2 .

The end of the central axis 3 away from the fan frame 1 is provided with a fixing piece 4, the fixing piece 4 includes a support plate 41 and a nameplate 42, the support plate 41 is bonded to the central axis 3, and the end of the support plate 41 far away from the fan frame 1 is useful for bonding A nameplate 42 for presenting the logo.

The nameplate 42 can be fixed on the central shaft 3 by bonding to the support plate 41 , the nameplate 42 is not easy to rotate with the rotation of the fan blade 2 , and the logo can be displayed during the operation of the fan.

In order to replace the nameplate 42 at any time when the nameplate 42 is damaged, a positioning groove 421 is provided on the side of the nameplate 42 close to the support plate 41, and a protrusion that cooperates with the positioning groove 421 is integrally formed on the support plate 41 part 411, the protruding part 411 and the positioning groove 421 can cooperate with each other, and the nameplate 42 and the support plate 41 are clamped and matched through the positioning groove 421, so that the nameplate 42 can be quickly positioned and bonded to the support plate 41. During the rotation of the fan blade 2 , relative slip between the nameplate 42 and the support plate 41 is not easy to occur, which can increase the stability of the nameplate 42 position.

In order to reduce the friction generated by the fan blade 2 against the central shaft 3 during rotation, a bearing 31 is provided outside the central shaft 3 . In this embodiment, the number of bearings 31 is set to two. The two bearings 31 are sleeved and installed outside the central shaft 3 , and the fan blade 2 is rotationally connected with the central shaft 3 through the bearings 31 . During the rotation of the fan blade 2, the bearing 31 limits the rotation of the fan blade 2 to the circumferential direction of the central shaft 3, and can reduce the noise generated by the fan blade 2 during rotation, so that the rotation of the fan blade 2 is more stable.

In order to stabilize the position of the support plate 41, a circlip 32 is bonded to the end of the central axis 3 away from the fan frame 1, and the circlip 32 is located at the end of the support plate 41 away from the fan frame 1, so that the support plate 41 is not easily affected by the centrifugal force generated when the bearing 31 rotates, and can lock the support plate 41 on the central shaft 3 to stabilize the support plate 41 .

In order to further reduce the impact of the bearing 31 on the support plate 41, a gasket 33 is arranged between the bearing 31 and the support plate 41, and the gasket 33 is bonded to the central shaft 3, so that the support plate 41 and the bearing 31 can be spaced apart. When rotating upwards, it acts as a buffer, making it difficult for the bearing 31 to affect the support plate 41 or the nameplate 42 .

In order to reduce the friction between the fan blade 2 and the fan frame 1, a spring 34 is bonded to the fan frame 1, and the end of the spring 34 far away from the fan frame 1 is in contact with the bearing 31, and the position of the bearing 31 can be limited by the spring 34. During operation, it is not easy to make the fan blade 2 too close to the fan frame 1 , which can reduce the friction between the fan blade 2 and the fan frame 1 .

The implementation principle of a fan in the embodiment of the present application is as follows:

The outer rotor motor drives the fan blade 2 to rotate, so that the fan blade 2 rotates in the casing 5, the air outside the casing 5 is sucked from the surface where the air inlet frame 51 is located, and the rotating fan blade 2 draws the air from the side far away from the air inlet frame 51. One side is blown out. During the operation of the fan, the nameplate 42 is not easy to rotate with the rotation of the fan blade 2 .

All of the above are preferred embodiments of the application, and are not intended to limit the protection scope of the application. Therefore, all equivalent changes made according to the structure, shape, and principle of the application should be covered by the protection scope of the application. Inside.

Claims (9)

1. An impeller structure, characterized in that it includes a fan frame (1) and fan blades (2), the fan frame (1) is fixedly connected with a central shaft (3), and the central shaft (3) is far away from the fan One end of the frame (1) is fixedly connected with a fixing piece (4) for displaying the logo, the fan blade (2) is rotatably connected with the central shaft (3), and the fan frame (1) is also provided with a device for driving the fan blade (2) Rotating drive member (11). 2. The impeller structure according to claim 1, characterized in that: the central shaft (3) is covered with a bearing (31), and the fan blade (2) connects with the central shaft (3) through the bearing (31) ) turn the connection. 3. The impeller structure according to claim 1, characterized in that: the fixing member (4) includes a support plate (41) and a name plate (42) for displaying a logo, the support plate (41) The support plate (41) is located at the end of the central axis (3) away from the fan frame (1), and the nameplate (42) is detachably connected to the support plate (41). The side away from the fan frame (1). 4. The impeller structure according to claim 3, characterized in that: a circlip (32) is sheathed on the central shaft (3), and the circlip (32) is located on the support plate (41) far away from the fan. side of the box (1). 5. The impeller structure according to claim 3, characterized in that: a gasket (33) is sheathed on the central shaft (3), and the gasket (33) is fixedly connected with the central shaft (3) , the gasket (33) is located between the support plate (41) and the bearing (31). 6. The impeller structure according to claim 2, characterized in that: the fan frame (1) is provided with a spring (34), and the end of the spring (34) far away from the fan frame (1) is in contact with the bearing ( 31) The end away from the fixing piece (4) abuts. 7. The impeller structure according to claim 3, characterized in that: the side of the nameplate (42) close to the support plate (41) is provided with a positioning groove (421), and the support plate (41) There is a protrusion (411) that cooperates with the positioning groove (421), and the protrusion (411) is snap-fitted with the support plate (41) by being located in the positioning groove (421), and the The nameplate (42) is bonded on the support plate (41). 8. A fan, characterized in that it includes the impeller structure and the casing (5) based on any one of claims 1-7, the impeller structure is arranged in the casing (5), and the casing (5 ) is provided with an air inlet frame (51) in the direction of the upper air flow, and an arc-shaped air guide ring (511) is arranged around the impeller structure near the air inlet frame (51) to increase the air guide volume, and the arc-shaped guide The wind ring (511) has a transitional arc shape and the opening of the arc faces the direction of the axis where the central axis (3) is located. 9 . The fan according to claim 8 , characterized in that: the fan blade ( 2 ) is provided with several guide ribs ( 21 ) protruding along a direction close to the air inlet frame ( 51 ).

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