Fan framework, fan and electronic product

Abstract

The utility model discloses a fan framework, a fan and an electronic product. The fan framework comprises a shaft center, a shaft sleeve connected to a base, a bearing installed in the shaft sleeve and a fixing ring connected in the shaft sleeve and used for limiting the bearing. The shaft center comprises a shaft center main body, the shaft center main body is rotationally connected in a central shaft hole of the bearing, the bottom end of the shaft center main body is connected with the shaft sleeve, and a rotor is arranged at the top end of the shaft center main body; an axis disc is arranged on the periphery of the axis body and located between the bearing and the fixing ring. The fan framework has the use characteristic of long service life, and has good dustproof and lubricating effects.

Description

Technical Field

[0001] The present application relates to the technical field of electronic product accessories, and in particular to a fan structure, a fan and an electronic product. Background Art

[0002] Electronic devices need to be equipped with fans for heat dissipation. Since the size of electronic devices is more important in market competition, it is crucial to design small-sized fans and ensure the service life of the fans.

[0003] The existing miniaturized fan design is relatively common. For example, the patent with publication number CN2021208464349 discloses a fan blade structure, a fan and an electronic device, the size of which can meet the use requirements of most laptops. However, after long-term use, it was found that the service life of the fan needs to be improved. There are many factors that affect the service life of the fan, such as short shaft length (contact length between the shaft and the bearing), poor stability, poor lubrication effect, poor dustproof performance, etc.

[0004] Since the fan size is fixed, its shaft length is fixed. If you want to increase the fan's service life by increasing the fan's shaft length, you need to improve the fan architecture. How to design a new fan architecture to increase the fan's service life is our goal. Summary of the invention

[0005] The purpose of the present application is to provide a fan structure, a fan and an electronic product to increase the service life of the fan.

[0006] In order to achieve the above objectives, this application is implemented by adopting the following technical solutions:

[0007] In a first aspect, the present application discloses a fan structure, including an axis, a sleeve connected to a base, a bearing installed in the sleeve, and a fixing ring connected to the sleeve for limiting the bearing;

[0008] The shaft includes a shaft body, the shaft body is rotatably connected in the central shaft hole of the bearing, the bottom end of the shaft body is connected to the sleeve, and the top end of the shaft body is provided with a rotor;

[0009] An axial disc is arranged on the outer periphery of the axial body, and the axial disc is located between the bearing and the fixing ring.

[0010] Furthermore, a limiting ring is provided on the outer periphery of the top surface of the bearing, an installation space is formed between the limiting ring and the top surface of the bearing, and the axial disc is arranged in the installation space;

[0011] The fixing ring is connected to the top surface of the limiting ring.

[0012] Furthermore, the bottom and outer ring of the bearing are both connected to the shaft sleeve.

[0013] Furthermore, a step groove is provided in the shaft sleeve, and the fixing ring is interference-connected in the step groove.

[0014] Furthermore, a friction plate is provided in the shaft sleeve, and the bottom end of the shaft body is connected to the friction plate.

[0015] Furthermore, the outer periphery of the sleeve is also connected to a stator, and a protrusion is provided on the bottom surface of the rotor, the protrusion is located between the stator and the sleeve, and the height of the bottom surface of the protrusion is lower than the height of the top surface of the stator and the top surface of the sleeve;

[0016] The fixing ring comprises a fixing ring body and a ring sleeve coaxially arranged with the fixing ring body, the shaft core body is connected in the ring sleeve, and the outer ring of the fixing ring body is connected with the shaft sleeve.

[0017] Furthermore, a fourth flow channel is provided on the bottom surface of the fixing ring body, a fifth flow channel is provided on the top surface and the bottom surface of the axial disc, and a first flow channel is provided on the outer periphery of the bearing.

[0018] Furthermore, a limiting ring is provided on the outer periphery of the top surface of the bearing, and a connecting groove connected to the first flow channel is provided on the limiting ring; an installation space is formed between the limiting ring and the top surface of the bearing, and a second flow channel is provided in the installation space;

[0019] The bottom surface of the bearing is provided with a third flow channel which is connected with the first flow channel.

[0020] In a second aspect, the present application discloses a fan, comprising the fan architecture described in any one of the first aspects.

[0021] In a third aspect, the present application discloses an electronic product, comprising the fan described in the second aspect.

[0022] The beneficial effects of this application are:

[0023] Compared with the patent mentioned in the background technology, the present application eliminates the retaining ring between the bottom end of the bearing and the shaft sleeve. Due to the elimination of the retaining ring, the length of the bearing can be increased by the size of the retaining ring. The increase in the bearing length increases the shaft bearing length, thereby increasing the service life of the fan.

[0024] The present application places the shaft center disc between the bearing and the fixing ring, and adopts the form of arranging the shaft center disc above the bearing, which will not affect the length dimension of the bearing and ensure the shaft bearing length. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is the main view of the fan architecture of this application;

[0026] Figure 2 for Figure 1 Sectional view of section AA;

[0027] Figure 3 It is a schematic diagram of the structure of the axis in this application;

[0028] Figure 4 for Figure 3 Schematic diagram of the structure from different perspectives;

[0029] Figure 5 It is a schematic diagram of the structure of the fixing ring in this application;

[0030] Figure 6 for Figure 5 Schematic diagram of the structure from different perspectives;

[0031] Figure 7 It is a structural schematic diagram of the bearing in this application;

[0032] Figure 8 for Figure 7 Schematic diagram of the structure from different perspectives;

[0033] Fig. 9 This is a schematic diagram of the oil circuit circulation in this application;

[0034] Fig.10 Schematic diagram of the dust-proof path in this application.

[0035] Among them: 1. base; 2. bushing; 3. bearing; 31. first flow channel; 32. limit ring; 321. connecting groove; 33. second flow channel; 34. third flow channel; 4. axis; 41. axis body; 42. axis disk; 421. fifth flow channel; 5. fixing ring; 51. fixing ring body; 52. sleeve; 511. fourth flow channel; 6. stator; 7. rotor; 8. friction plate. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, objectives and effects achieved by this application easy to understand, this application is further explained below in conjunction with specific implementation methods.

[0037] It should be noted that in the description of the present application, the directions or positional relationships indicated by the terms "front", "rear", "left", "right", "up", "down", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application rather than requiring that the present application must be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. The terms "front", "rear", "left", "right", "up", and "down" used in the description of the present application refer to the directions in the accompanying drawings, and the terms "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0038] The present application improves upon the technology mentioned in the background technology by removing the retaining ring between the bottom end face of the bearing and the sleeve of the fan structure, and by setting an axial disc on the axial body, and setting the axial disc above the bearing, that is, between the bearing and the positioning ring, the length of the shaft bearing is increased, thereby increasing the service life of the fan.

[0039] The present application further takes into consideration multiple aspects such as improving stability, ensuring lubrication effect, and enhancing dustproof performance to comprehensively ensure the service life of the fan. Example

[0040] A fan structure includes an axis 4, a sleeve 2 connected to a base 1, a bearing 3 installed in the sleeve 2 and a fixing ring 5 connected in the sleeve 2 for limiting the bearing 3; the axis 4 includes an axis body 41, the axis body 41 is rotatably connected in the central axis hole of the bearing 3, the bottom end of the axis body 41 is connected to the sleeve 2, and the top end of the axis body 41 is provided with a rotor 7; the outer periphery of the axis body 41 is provided with an axis disk 42, and the axis disk 42 is located between the bearing 3 and the fixing ring 5.

[0041] In the present application, the bearing 3 is used to carry the rotation of the shaft 4 , the bottom and the outer ring of the bearing 3 are connected to the sleeve 2 , and the top of the bearing 3 is limited by the fixing ring 5 .

[0042] When the present application is used, the axis body 41 rotates in the bearing 3, which can drive the rotor 7 to rotate and realize the operation of the fan structure. During the rotation of the axis body 41, the stability of its rotation is guaranteed due to the limiting effect of the bearing 3 on the periphery. The limiting at the bottom of the axis body 41 is achieved by the sleeve 2, and the limiting at the top is achieved by the fixing ring 5. Specifically, the axis disk 42 is set between the bearing 3 and the fixing ring 5, and the fixing ring 5 can limit the axis disk 42 and the bearing 3, thereby ensuring the stability of the operation. At the same time, the axis disk 42 is located between the bearing and the fixing ring, which can also increase the rigidity of the axis 4 and prevent deformation that may occur under high-speed rotation.

[0043] In the present application, the outer periphery of the shaft body 41 is provided with a shaft disc 42. Furthermore, the shaft body 41 and the shaft disc 42 are fixedly connected, and the two can be welded or integrally formed, preferably integrally formed. The firm connection between the two allows the shaft disc 42 to serve as a balancing component, helping to maintain the dynamic balance of the rotor 7, reducing vibration, and improving the stability of the fan operation.

[0044] Compared with the related fans of our company, the fan structure of this application eliminates the retaining ring between the bottom end of the bearing and the sleeve. Due to the elimination of the retaining ring, the length of the bearing can be increased by the size of the retaining ring. For example, if the bearing length of the original fan is 7mm, an 8mm bearing can be used now, the bearing length is increased by 1mm, and the shaft bearing length is increased by 0.5mm. The increase in the bearing length increases the shaft bearing length, thereby increasing the service life of the fan.

[0045] In a further embodiment, Figure 2 and Figure 8 As shown, a limiting ring 32 is provided on the outer periphery of the top surface of the bearing 3 , an installation space is formed between the limiting ring 32 and the top surface of the bearing 3 , and the axial disc 42 is arranged in the installation space; the fixing ring 5 is connected to the top surface of the limiting ring 32 .

[0046] Preferably, the limiting ring 32 is welded to the outer periphery of the top surface of the bearing 3 to ensure the stable connection between the limiting ring 32 and the bearing 3. The shaft center disk 42 is arranged in the installation space, and the fixing ring 5 is connected to the top surface of the limiting ring 32. This design enables the fixing ring 5 to press the bearing 3 and ensure the limiting of the shaft center 4. The matching form of the shaft center disk 42 is a clearance match, that is, there is a small gap between it and the top surface of the bearing 3, the inner ring of the limiting ring 32 and the bottom surface of the fixing ring 5 to ensure the rotation effect of the shaft center 4.

[0047] In a further embodiment, a step groove is provided in the shaft sleeve 2, specifically, as Figure 2 As shown, the step groove is located at the top of the sleeve 2, and this design facilitates the assembly of the fixing ring 5. When connected, the fixing ring 5 is installed in the step groove with interference fit, and the fixing ring 5 is installed stably to ensure the limiting effect of the bearing 3 and the shaft center 4.

[0048] In some other embodiments, the fixing ring 5 may also be connected in the step groove by transition fit, and after installation, the fixing ring 5 may be firmly fixed to the shaft sleeve 2 by spot welding to ensure a stable connection between the two.

[0049] Furthermore, a friction plate 8 is provided in the sleeve 2, and the bottom end of the shaft body 41 is connected to the friction plate 8. The friction plate 8 is provided to reduce the friction between the bottom end of the shaft body 41 and the sleeve 2, thereby ensuring the rotation effect of the shaft 4.

[0050] In a further embodiment, Figure 2 , Figure 5 , Figure 6 and Fig.10As shown, the outer periphery of the sleeve 2 is also connected to the stator 6, and the bottom surface of the rotor 7 is provided with a protrusion, which is located between the stator 6 and the sleeve 2, and the height of the bottom surface of the protrusion is lower than the height of the top surface of the stator 6 and the top surface of the sleeve 2. The fixing ring 5 includes a fixing ring body 51 and a ring sleeve 52 coaxially arranged with the fixing ring body 51. The fixing ring body 51 and the ring sleeve 52 are integrally formed, and the fixing ring body 51 and the ring sleeve 52 have a coaxial central axis hole for connecting the shaft body 41. The shaft body 41 is connected to the central axis hole of the ring sleeve 52, and the outer ring of the fixing ring body 51 is fixedly connected to the sleeve 2. Combined with the shaft center disc 42 being located between the bearing 3 and the fixing ring 5, it has a good dustproof effect in terms of dustproofing. The specific analysis is as follows:

[0051] like Fig.10 As shown, the axial disc 42 is located between the bearing 3 and the fixed ring 5, and can be used as a seal between the bearing 3 and the axial body 41 to prevent the entry of external dust. In addition, the height of the bottom surface of the raised portion on the bottom surface of the rotor 7 is lower than the height of the top surface of the stator 6 and the top surface of the sleeve 2. This design prevents dust from directly entering the sleeve and requires a longer path, which further blocks the entry of dust. In addition, sealing parts are formed between the sleeve 52 and the axial body 41 or between the fixed ring body 51 and the sleeve 2, as well as between the axial disc 42 and the fixed ring body 51 and between the axial disc 42 and the limiting ring 32 of the bearing. Through multiple sealings, dust is effectively prevented from entering between the bearing 3 and the axial body 41.

[0052] Furthermore, the stator 6 is mounted on the outer periphery of the sleeve 2, and forms a core component of the electromagnetic drive with the rotor 7. The raised portion on the bottom surface of the rotor 7 prevents the rotor from directly contacting the stator or the top surface of the sleeve, reducing unnecessary friction and loss. At the same time, the raised portion can be used as a part of the magnetic material to participate in the magnetic field interaction and enhance the efficiency of the motor.

[0053] In a further embodiment, Figure 3-9 As shown, the bottom surface of the fixing ring body 51 is provided with a fourth flow channel 511, the top and bottom surfaces of the axis disk 42 are both provided with a fifth flow channel 421, and the outer periphery of the bearing 3 is provided with a first flow channel 31. A limiting ring 32 is provided on the outer periphery of the top surface of the bearing 3, and a connecting groove 321 connected to the first flow channel 31 is provided on the limiting ring 32; an installation space is formed between the limiting ring 32 and the top surface of the bearing 3, and a second flow channel 33 is provided in the installation space; and a third flow channel 34 connected to the first flow channel 31 is provided on the bottom surface of the bearing 3.

[0054] Since the connecting groove 321 is connected to the first flow channel 31, the lubricating grease on the outer side of the bearing 3 can flow into the second flow channel 33 in the installation space, and then enter the contact surface between the bearing 3 and the shaft body 41, and the lubricating grease flows downward. Since the bottom surface of the bearing 3 is provided with a third flow channel 34, and the third flow channel 34 is connected to the first flow channel 31, the lubricating grease can flow from the bottom surface of the bearing 3 to the outer side surface of the bearing 3, thereby forming a Fig. 9 The circulating oil circuit shown ensures the lubrication effect on the bearing 3 and the shaft 4.

[0055] Furthermore, the fifth flow channel 421 provided on the upper and lower surfaces of the axis disk 42 further enhances the circulation of the fluid in the axis area, which not only improves the heat dissipation conditions of the axis part, but also helps to form a continuous lubrication path, reduces the friction between the axis and the bearing contact surface, and prolongs the service life of the component.

[0056] In summary, the fan structure of the present application has structural stability: the main shaft body rotates through the bearing 3, and its bottom end is connected to the sleeve 2, which ensures the stable installation of the rotor 7, while the rotor design at the top is conducive to the efficient conversion of power into wind power. The fixing ring is connected in the step groove of the sleeve 2 through interference fit, ensuring the precise positioning of the bearing 3, and the addition of the limiting ring 32 further enhances the stability and positioning accuracy of the bearing. The connection between the bottom end of the main shaft body 41 and the friction plate 8 may be used to absorb vibration, reduce operating noise, and improve the smoothness of operation.

[0057] In terms of heat dissipation and lubrication, multiple flow channels, the first flow channel 31, the second flow channel 33, the third flow channel 34, the fourth flow channel 511, and the fifth flow channel 421, are introduced to form a complete cooling and lubrication system. The flow channel is designed around the bearing 3 and the axis 4 to effectively transport lubricants, which not only helps to dissipate heat, but also reduces wear and prolongs service life. The limit ring 32 and the connecting groove 321 not only limit the position of the bearing 3, but also connect with the first flow channel through the connecting groove, further optimizing the circulation path of the fluid and improving the lubrication efficiency.

[0058] The improved front retaining ring and the shaft have an axial clearance between 0.5 and 0.9 mm. The present application uses the shaft disc for limiting, and the axial clearance is only 0.05 to 0.2 mm (the shaft body 41 and the shaft disc 42 are integrated), which more effectively controls the axial position of the limited rotor.

[0059] The operation stability is better, and the addition of the axial disc structure has better limiting and protection functions in the XY directions during the operation of the fan, which increases the operation stability and is more suitable for diversified working conditions.

[0060] Multi-layer dust-proof design enables long-term use in special environments (with heavy dust). Example

[0061] The present application also provides a fan, which includes the fan structure in any of the above embodiments. The fan provided by the present application has a rotor that rotates smoothly at high speed, a long service life, and no abnormal noise. Example

[0062] The present application also provides an electronic product, which includes the fan of Example 2 or the fan frame of Example 1.

[0063] The electronic device of the present application may include a desktop computer, a laptop computer or various electronic devices. The fan architecture of the present application improves the stability of the fan when rotating at high speed and reduces abnormal noise of the electronic device.

[0064] It is known from common technical knowledge that the present application can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present application or within the scope equivalent to the present application are included in the present application.

Claims

1. A fan architecture, characterized in that: It comprises a shaft (4), a shaft sleeve (2) connected to a base (1), a bearing (3) installed in the shaft sleeve (2), and a fixing ring (5) connected in the shaft sleeve (2) for limiting the position of the bearing (3); The shaft (4) comprises a shaft body (41), the shaft body (41) being rotatably connected in the central shaft hole of the bearing (3), the bottom end of the shaft body (41) being connected to the shaft sleeve (2), and the top end of the shaft body (41) being provided with a rotor (7); An axial disc (42) is provided on the outer periphery of the axial body (41), and the axial disc (42) is located between the bearing (3) and the fixing ring (5).

2. The fan structure according to claim 1, characterized in that: A limiting ring (32) is provided on the outer periphery of the top surface of the bearing (3), an installation space is formed between the limiting ring (32) and the top surface of the bearing (3), and the axial disc (42) is arranged in the installation space; The fixing ring (5) is connected to the top surface of the limiting ring (32).

3. The fan structure according to claim 1, characterized in that: The bottom and outer ring of the bearing (3) are both connected to the shaft sleeve (2).

4. The fan structure according to claim 1, characterized in that: A step groove is provided in the shaft sleeve (2), and the fixing ring (5) is interference-connected in the step groove.

5. The fan structure according to claim 1, characterized in that: A friction plate (8) is also provided in the shaft sleeve (2), and the bottom end of the shaft core body (41) is connected to the friction plate (8).

6. The fan structure according to claim 1, characterized in that: The outer periphery of the shaft sleeve (2) is also connected to a stator (6), and the bottom surface of the rotor (7) is provided with a raised portion, the raised portion is located between the stator (6) and the shaft sleeve (2), and the height of the bottom surface of the raised portion is lower than the height of the top surface of the stator (6) and the top surface of the shaft sleeve (2); The fixing ring (5) comprises a fixing ring body (51) and a ring sleeve (52) coaxially arranged with the fixing ring body (51); the shaft core body (41) is connected inside the ring sleeve (52); and the outer ring of the fixing ring body (51) is connected to the shaft sleeve (2).

7. The fan structure according to claim 6, characterized in that: The bottom surface of the fixing ring body (51) is provided with a fourth flow channel (511), the top surface and the bottom surface of the axial disc (42) are both provided with a fifth flow channel (421), and the outer periphery of the bearing (3) is provided with a first flow channel (31).

8. The fan structure according to claim 7, characterized in that: A limiting ring (32) is provided on the outer periphery of the top surface of the bearing (3), and a connecting groove (321) is provided on the limiting ring (32) and is connected to the first flow channel (31); an installation space is formed between the limiting ring (32) and the top surface of the bearing (3), and a second flow channel (33) is provided in the installation space; The bottom surface of the bearing (3) is provided with a third flow channel (34) which is connected to the first flow channel (31).

9. A fan, characterized in that: The fan structure comprises the fan structure described in any one of claims 1 to 8.

10. An electronic product, characterized in that: The fan comprising the fan as claimed in claim 9.

Images