Computer host fan capable of automatically cleaning dust

Abstract

The utility model provides a computer host fan capable of automatically cleaning dust, and belongs to the technical field of computers. The computer host fan capable of automatically cleaning dust comprises a fan body and a jacking mechanism, the fan body comprises an impeller and a support, the support is fixedly connected with a stator, the center of the impeller is fixedly connected with a rotating shaft, the rotating shaft is inserted into the support in a penetrating mode, and the inner wall of the impeller is fixedly connected with a rotor; the jacking mechanism is installed on the back face of the support, a linear vibration motor is elastically arranged on the jacking mechanism, and the linear vibration motor abuts against the end face of the rotating shaft. The fan has the following effects that when the fan works normally, the jacking mechanism drives the linear vibration motor to jack the impeller part by a small distance, the impeller can still have a certain rotating speed, meanwhile, the linear vibration motor can drive the impeller to vibrate to help dust attached to the surface of the impeller to be separated, after the jacking mechanism retracts, the impeller automatically resets, and the fan is prevented from being damaged. And the automatic ash removal effect is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of computers, in particular to a computer host fan capable of automatically cleaning dust. BACKGROUND

[0002] The computer host is provided with heat generating components such as CPU, graphics card and power supply. In order to dissipate heat in the host, a cooling fan is usually arranged on the side wall of the host. After long time working, a large amount of dust will accumulate on the surface of the impeller, especially the front end. If not cleaned in time, the rotating resistance will be increased, the air blowing efficiency will be reduced, and the temperature in the host will be increased.

[0003] Therefore, the host needs to be stopped regularly, and the impeller needs to be cleaned, which affects the continuous working of the host. CONTENT OF THE UTILITY MODEL

[0004] In order to make up for the above shortcomings, the present application provides a computer host fan capable of automatically cleaning dust, aiming at improving the problems mentioned in the above background technology.

[0005] The present application provides a computer host fan capable of automatically cleaning dust, comprising a fan and a lifting mechanism. The fan comprises an impeller and a bracket. A stator is fixedly connected to the bracket. A rotating shaft is fixedly connected to the center of the impeller. The rotating shaft penetrates and is connected to the bracket. A rotor is fixedly connected to the inner wall of the impeller. The lifting mechanism is installed on the back of the bracket. A linear vibration motor is elastically arranged on the lifting mechanism. The linear vibration motor abuts against the end surface of the rotating shaft.

[0006] In a specific embodiment, the lifting mechanism comprises a slide rod. One end of the slide rod is fixedly connected to a mounting plate. The mounting plate is fixedly connected to the back of the bracket.

[0007] In the above implementation process, the mounting plate fixes the slide rod on the bracket. The vibration direction of the linear vibration motor is parallel to the slide rod, which provides support for the linear vibration motor.

[0008] In a specific embodiment, the slide rod has magnetism. A sliding block is slidably connected to the slide rod. A coil is embedded in the sliding block. The slide rod is non-circular.

[0009] In the above implementation process, the sliding block and the slide rod form an electromagnetic telescopic rod structure. The coil is electrified to make the sliding block move along the slide rod, realizing the contact and separation of the linear vibration motor and the impeller.

[0010] In a specific embodiment, a limiting block is fixedly connected to the outer end of the slide rod. The limiting block and the mounting plate respectively abut against both ends of the sliding block.

[0011] In the above implementation process, the limiting block and the mounting plate limit the movement of the sliding block on the slide rod.

[0012] In a specific embodiment, an isolation plate is elastically connected to the sliding block, the linear vibration motor is mounted on the isolation plate, and the isolation plate abuts against the rotating shaft.

[0013] In the above implementation process, since the coil and the linear vibration motor both work by magnetism, the isolation plate is used to isolate the magnetism to avoid mutual interference.

[0014] In a specific embodiment, a dovetail block is fixedly connected to the isolation plate, and a dovetail groove is formed in the sliding block and matched with the dovetail block.

[0015] In the above implementation process, the isolation plate elastically slides on the sliding block through the dovetail block to adapt to the vibration of the linear vibration motor.

[0016] In a specific embodiment, springs are arranged at both ends of the dovetail block and located in the dovetail groove.

[0017] In the above implementation process, the two springs limit the linear vibration motor to a proper initial position, in which the end surface of the rotating shaft does not contact the isolation plate, so that the rotating shaft can normally rotate, when the isolation plate lifts the impeller, the two springs move the dovetail block to a working position, but still allow elastic movement within a certain range.

[0018] In a specific embodiment, the rotating shaft is provided with a positioning end surface, and the positioning end surface abuts against the support.

[0019] In the above implementation process, when the impeller works, the positioning end surface abuts against the support to maintain normal operation of the rotor and the stator, and when the impeller vibrates, the positioning end surface is away from the support so that the impeller can axially vibrate.

[0020] Compared with the prior art, the application has the beneficial effects that the lifting mechanism lifts the impeller part by a small distance with the linear vibration motor when the fan normally works, the impeller can still have a certain rotating speed, the linear vibration motor can vibrate with the impeller to help the dust attached to the surface of the impeller to fall off, and the impeller is automatically reset after the lifting mechanism is retracted, thereby realizing the automatic dust removal effect. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the application, and therefore should not be considered as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0022] Fig. 1It is the schematic diagram of computer host fan provided by the embodiment of the application which can automatically clean dust;

[0023] Fig. 2 It is the schematic diagram of impeller pulling-out state provided by the embodiment of the application;

[0024] Fig. 3 It is the schematic diagram of connection relationship between jacking mechanism and linear vibration motor provided by the embodiment of the application.

[0025] In the figure: 10-fan; 11-impeller; 12-bracket; 13-stator; 14-rotating shaft; 15-rotor; 16-positioning end face; 20-jacking mechanism; 21-sliding rod; 22-mounting plate; 23-sliding block; 24-limiting block; 25-isolation plate; 26-dovetail block; 27-spring; 30-linear vibration motor. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the application will be described below with reference to the drawings in the embodiments of the application.

[0027] Please refer to Figs. 1-3 The application provides a computer host fan which can automatically clean dust, comprising a fan 10 and a jacking mechanism 20. The fan 10 comprises an impeller 11 and a bracket 12, the bracket 12 is fixedly connected with a stator 13, the center of the impeller 11 is fixedly connected with a rotating shaft 14, the rotating shaft 14 penetrates and is connected to the bracket 12, the inner wall of the impeller 11 is fixedly connected with a rotor 15, the jacking mechanism 20 is installed on the back of the bracket 12, the jacking mechanism 20 is elastically provided with a linear vibration motor 30, and the linear vibration motor 30 abuts against the end face of the rotating shaft 14. When the fan 10 normally works, the jacking mechanism 20 brings the linear vibration motor 30 to partially jack up the impeller 11 by a small distance, the impeller 11 can still have a certain rotating speed, meanwhile, the linear vibration motor 30 can vibrate with the impeller 11, help the dust attached to the surface of the impeller 11 to fall off, and the impeller 11 is automatically reset after the jacking mechanism 20 is retracted, thereby realizing the function of automatically cleaning dust.

[0028] Please refer to Figs. 1-3 The jacking mechanism 20 comprises a sliding rod 21, one end of the sliding rod 21 is fixedly connected with a mounting plate 22, and the mounting plate 22 is fixedly connected with the back of the bracket 12. The mounting plate 22 fixes the sliding rod 21 on the bracket 12, the sliding rod 21 is parallel to the vibration direction of the linear vibration motor 30, and the sliding rod 21 provides support for the linear vibration motor 30.

[0029] Please refer to Figs. 1-3The slide bar 21 is magnetic, and a sliding block 23 is slidably connected to the slide bar 21, the sliding block 23 is embedded with a coil, and the slide bar 21 is non-circular. The sliding block 23 and the slide bar 21 form an electromagnetic telescopic rod structure, and the coil is energized to make the sliding block 23 move along the slide bar 21, realizing the contact and separation of the linear vibration motor 30 and the impeller 11.

[0030] Please refer to Figs. 1-3 The slide bar 21 is fixedly connected with a limiting block 24 at the outer end, and the limiting block 24 and the mounting plate 22 are respectively abutted with both ends of the sliding block 23. The limiting block 24 and the mounting plate 22 limit the movement of the sliding block 23 on the slide bar 21.

[0031] Please refer to Figs. 1-3 The sliding block 23 is elastically connected with an isolation plate 25, and the linear vibration motor 30 is installed on the isolation plate 25, and the isolation plate 25 is abutted with the rotating shaft 14. Since the coil and the linear vibration motor 30 both work through magnetism, in order to avoid mutual interference, the isolation plate 25 is used to isolate the magnetism.

[0032] Please refer to Figs. 1-3 The isolation plate 25 is fixedly connected with a dovetail block 26, and the sliding block 23 is provided with a dovetail groove matched with the dovetail block 26. The isolation plate 25 elastically slides on the sliding block 23 through the dovetail block 26, so as to adapt to the vibration of the linear vibration motor 30.

[0033] Please refer to Figs. 1-3 The two ends of the dovetail block 26 are abutted with springs 27, and the springs 27 are located in the dovetail groove. The two springs 27 limit the linear vibration motor 30 in a proper initial position, at this time, the end surface of the rotating shaft 14 is not in contact with the isolation plate 25, so that the rotating shaft 14 can rotate normally, when the isolation plate 25 lifts up the impeller 11, the two springs 27 make the dovetail block 26 move to the working position, but still keep a certain range of elastic movement.

[0034] Please refer to Figs. 1-3 The rotating shaft 14 is provided with a positioning end surface 16, and the positioning end surface 16 is abutted with the support 12. When the impeller 11 works, the positioning end surface 16 is abutted on the support 12, maintaining the normal operation of the rotor 15 and the stator 13, when the vibration occurs, the positioning end surface 16 is away from the support 12, so that the impeller 11 can be axially vibrated.

[0035] The working principle of the computer host fan with automatic dust cleaning is as follows: when the fan 10 works normally, the positioning end face 16 abuts against the support 12 to maintain the normal operation of the rotor 15 and the stator 13; every time after a period of time, the coil is energized to make the sliding block 23 move along the slide rod 21, and the linear vibration motor 30 moves towards the impeller 11; the isolation plate 25 lifts the rotating shaft 14, the positioning end face 16 on the rotating shaft 14 leaves the support 12, the rotor 15 is offset from the stator 13 by a small distance, the fan 10 can still rotate, but the rotating speed is reduced; the linear vibration motor 30 starts to work and vibrates axially; under the support of the two springs 27 and the magnetic force of the rotor 15 and the stator 13, the linear vibration motor 30, the isolation plate 25 and the dovetail block 26 vibrate axially with the impeller 11, helping the dust adhered to the leading edge of the impeller 11 to fall off, thereby realizing the automatic dust cleaning effect; after the vibration is completed according to the predetermined time, the coil is reversely energized to make the sliding block 23 retract with the linear vibration motor 30; the magnetic force of the rotor 15 and the stator 13 makes the rotor 15 and the impeller 11 reset, and the positioning end face 16 abuts against the support 12 again; in summary, the lifting mechanism 20 lifts the impeller 11 by a small distance with the linear vibration motor 30 when the fan 10 works normally, the impeller 11 can still have a certain rotating speed, and at the same time, the linear vibration motor 30 can vibrate with the impeller 11 to help the dust adhered to the surface of the impeller 11 to fall off; after the lifting mechanism 20 retracts, the impeller 11 is automatically reset, thereby realizing the automatic dust cleaning effect.

[0036] The above merely provides an embodiment of the present application and is not used to limit the protection scope of the present application; for those skilled in the art, the present application can have various modifications and changes; any modification, improvement or equivalent replacement within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

Claims

1. A computer main fan automatically cleaning dust, characterized in that, Including fan (10) and jacking mechanism (20), the fan (10) includes impeller (11) and support (12), the support (12) is fixedly connected with stator (13), the impeller (11) center is fixedly connected with rotating shaft (14), the rotating shaft (14) is inserted on the support (12), the impeller (11) inner wall is fixedly connected with rotor (15), the jacking mechanism (20) is installed on the back of the support (12), the jacking mechanism (20) is elastically provided with linear vibration motor (30), the linear vibration motor (30) and the end surface of the rotating shaft (14) abut.

2. The computer mainframe fan that automatically cleans dust according to claim 1, wherein, The jacking mechanism (20) includes a slide rod (21), one end of the slide rod (21) is fixedly connected with a mounting plate (22), and the mounting plate (22) is fixedly connected with the back of the support (12).

3. The computer mainframe fan that automatically cleans dust according to claim 2, wherein, The slide rod (21) has magnetism, the slide rod (21) is slidably connected with a sliding block (23), the sliding block (23) is embedded with a coil, and the slide rod (21) is non-circular.

4. The computer mainframe fan that automatically cleans dust according to claim 3, wherein, The outer end of the slide rod (21) is fixedly connected with a limiting block (24), and the limiting block (24) and the mounting plate (22) are respectively abutted with both ends of the sliding block (23).

5. The dust self-cleaning computer mainframe fan of claim 4, wherein, The sliding block (23) is elastically connected with an isolation plate (25), the linear vibration motor (30) is installed on the isolation plate (25), and the isolation plate (25) is abutted with the rotating shaft (14).

6. The dust self-cleaning computer mainframe fan of claim 5, wherein, The isolation plate (25) is fixedly connected with a dovetail block (26), and the sliding block (23) is provided with a dovetail groove matched with the dovetail block (26).

7. The dust self-cleaning computer mainframe fan according to claim 6, wherein, Both ends of the dovetail block (26) are abutted with springs (27), and the springs (27) are located in the dovetail groove.

8. The computer mainframe fan that automatically cleans dust according to claim 7, wherein, The rotating shaft (14) is provided with a positioning end face (16), and the positioning end face (16) is abutted with the support (12).

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